mobile station device, base station device, radio communication system, radio communication method a

专利摘要:
  TERMINAL APPLIANCE, BASE STATION APPLIANCE, AND RADIO COMMUNICATION METHOD.The present invention relates to a base station apparatus (3) that can appropriately receive PUSCH in a wireless communication system that uses OCC for DMRS. A first mode has been established in which a demodulated reference signal from a shared physical uplink channel is multiplied by a predetermined orthogonal code. Alternatively, if a temporary C-RNTI is used for transmission of downlink control information, a second mode is established in which the demodulated reference signal of a shared channel of the physical uplink is multiplied by a predetermined orthogonal code and the demodulated reference signal of the uplink shared physical channel is multiplied by an orthogonal code decided on the basis of the cyclic displacement information in the downlink control information. Additionally, if an RNTI other than the temporary C-RNTI is used for transmitting downlink control information, the demodulated reference signal of a shared uplink link channel is multiplied by an orthogonal code decided based on the offset information. cyclical control information of the downlink.
公开号:BR112012030130A2
申请号:R112012030130-6
申请日:2011-05-20
公开日:2020-09-01
发明作者:Shoichi Suzuki；Yosuke Akimoto
申请人:Sharp Kabushiki Kaisha；
IPC主号:

专利说明:

Invention Patent Descriptive Report for "TERMINAL APPLIANCE, BASE STATION APPLIANCE, AND METHOD FOR RADIO COMMUNICATION". Technical field 5 The present invention relates to a radio communication system, a base station apparatus, a mobile station apparatus, a radio communication method and an integrated circuit.
Background Art The evolution of the radio access method and the radio network of a cellular mobile communication (hereinafter referred to as “long-term evolution (LTE)” or “evolved universal terrestrial radio access (EUTRA”) is being examined in the 3rd generation partnership project (3GPP) In LTE, as a communication system for radio communication (downlink) from a base station device to a mobile station device, the division multiplexing system orthogonal frequency (OFDM) which is a multiple carrier transmission is used.
In addition, as a radio communication communication system (uplink) from the mobile station apparatus to the base station apparatus, the single carrier frequency division multiple access system (SC-FDMA) which is a transmission single carrier is used.
In LTE, the base station apparatus instructs the mobile station apparatus to perform the initial transmission or retransmission of the PUSCH (physical uplink shared channel) which is a channel for the transmission of uplink data (or referred to as “ uplink shared channel: UL-SCH ”) using the downlink control information (DCI) transmitted through the PDCCH (physical downlink control channel). In LTE, the mobile station device transmits PUSCH using a transmission antenna port.
In LTE-A, the use of SU (single user) - MIMO (multiple input multiple output) for PUSCH is being examined in order to improve the efficiency of the uplink spectrum.
By the use of SU-MIMO, the
. .
Y 2/58 m = relay of the mobile station can spatially multiplex a plurality of data fragments of the uplink in a PUSCH and transmit them. using a plurality of arytena ports. At LTE. MU (multiple users) - MIMO is used which is a techno | ogia to improve spectrum efficiency in which a plurality of mobile station devices transmit data at the same time and on the same frequency and the base station handset , when receiving the data, it separates the data from one or more sequences, transmitted by each of the mobile station's devices, but in LTE-A, the expansion of the MU-MIMO functions is being examined-.
F; iy 10 In LTE, a cyclic shift was introduced in a. The! reference (Demodulation Reference Signal: DMRS) used to estimate. 4 "¶, F" channel channel and transmitted together with PUSCH in order to reduce interference. The non-patent document 1 describes the introduction of the OCC (orthogonal coverage code '") in the DMRS in order to further reduce the interference of the DMRS during SU-MIMO and MU-MIMO. Furthermore, the non-patent document 1 describes that information related to cyclical displacement - used for DMRS and included in the downlink link control information for PUSCH is associated with the OCC used for DMRS. Document of prior art 20 Document without patent Document without patent 1 : "OCC and CS for UL DMRS in SU / MU-MIMO", 3GPP TSG WGI Meeting # 60, R1-101267, February 22-26, 201O- Description of the invention 25 Problems to be solved by the invention However, in prior art technology, if the base station device can no longer recognize whether c) mobile station device operates like LTE and OCC is not used for DMRS or the mobile station device operates like LTE-A and the OCC is used for DMRS, the base station apparatus cannot perform correctly the channel estimate from the DMRS transmitted by the mobile station device and the problem occurs that the PUSCH cannot be received.
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^
The present invention was created in view of the above problem and
, aims to provide a mobile station device, a base station device, a radio communication system, a radio communication method and an integrated circuit in which the base station 5 device can correctly receive PUSCH in a radio communication system using the OCC for DMRS. . Ways of solving the problem (1) In order to achieve the objective described above, an embodiment of the present invention adopts the following measures.
That is, a station device ~. °; "" 'r 10 mobile part of a modality of the present invention is a station apparatus qL | e mobile communication communicates with a base station device, where: "m when the mobile station device decodes the control information of the
· ,. downlink in a predetermined format used for scheduling a "physical uplink shared channel, if a first mode is defined in which a .modulating reference signal of the physical uplink shared channel is multiplied by an orthogonal code determined in advance or if a temporary C-RNTI is used for transmitting the downlink control information, the mobile station apparatus decodes the de- ference reference signal.
20 modulation of the shared channel of the physical upstream erilace scheduled by the downlink control information by the orthogonal code determined in advance, and when the mobile station device decodes the downlink control information in the predetermined format used for scheduling the channel shared link
25 physical downward, if a second mode is defined in which the demodulation reference signal of the physical uplink shared channel is multiplied by an orthogonal code determined based on the cyclic displacement information in the downlink control information and beyond moreover, if an RNTI other than the temporary C-RNTI is used for
30 transmission of the downlink control information, the mobile station apparatus decodes the demodulation reference signal of the shared channel of the physical uplink scheduled by the information of m "7 ~" = ~ 4/58. + ' .
control of the downlink by the orthogonal code determined based on the information of the cyclical displacement in the control information of the downlink-. (2) Furthermore, in the mobile station apparatus of a mode of the present invention, the RNTI other than the temporary C-RNTI is a .C-RNTI or a C-RNTI SPS. . (3) In addition, in the mobile station apparatus of a mode of the present invention, the downlink control information. In the predetermined format is the channel scheduling information
G '' "10 shared the physical uplink transmitted on a single an- · 4 * '% port." K (4) In addition, r) the mobile station device of a modality of the present invention, the first mode or the second mode is defined 'according to an RRC signal received from the base station apparatus. (5) In addition, in the mobile station apparatus of a modality of the present invention, the first mode is defined until the RRC signal is received from the base station apparatus. (6) Furthermore, in the mobile station apparatus of a mode of the present invention, the temporary C-RNTI is included in a random access response including a random access preamble identifier transmitted by the station apparatus mobile to the base station apparatus. (7) In addition, in the mobile station apparatus of a mode of the present invention, the downlink control information 25 including the RNTI other than the temporary C-RNTI is decoded in a common search space and / or a search space specific to the mobile station apparatus and the downlink control information including the temporary C-RNTI is decoded in the common search space. (8) Furthermore, in the mobile station apparatus of a modality of the present invention, the common research space is a space constituted by a predetermined control element of the cane and the research space specific to the apparatus of the mobile station is a building space
titrated by an element of the control channel determined on the basis of a, C-RNTI which is the RNTI different from the temporary C · -RNTÍ. "(9) Additionally, in the mobile station apparatus of a modality of the present invention, when the mobile station apparatus decodes the downlink control information in a format used for scheduling the shared channel. of the physical uplink different from the predetermined format, the mobile station apparatus multiplies the democlulation reference signal of the shared uplink link scheduled by the downlink control information ": 10 te in different format predetermined by orthogonal code 4 ", determined based on cyclic displacement information in the information-"% 'Downlink control function in a format other than the predetermined format- -
T (10) Furthermore, in the 1.5-mode mobile station apparatus of the present invention, the 'downlink control information in a format other than the predetermined format is the information for channel scheduling shared of the physical uplink transmitted on a pIurality of antenna ports. (11) In addition, the mobile station apparatus of a mode of the present invention is a mobile station apparatus which communicates with a base station apparatus, wherein: the mobile station apparatus based on the RNTI used for the transmission of downlink control information in a predetermined format used for scheduling a shared channel of the physical uplink, multiplies a demodulation reference signal of the shared channel of the physical uplink scheduled by the control information of the downlink by an orthogonal code determined in advance, or multiplies the demodulation reference signal of the shared channel of the physical upstream link scheduled by the downlink control information 30 by an orthogonal code determined based on information of the cyclical displacement in the control information of the downlink. (12) In addition, the mobile station
of the present invention is a mobile station apparatus that communicates
, with a base station apparatus, wherein: the mobile station apparatus defines, according to an RRC signal received from the base station apparatus, a first mode in which the mobile station apparatus,
5 when decoding the downlink control information in a format used for scheduling a shared channel of the physical uplink transmitted on a single antenna port, multiplies a demodulation reference signal of the shared channel of the physical uplink scheduled by the descendant link control information ", 10 t and by an orthogonal code determined in advance, or a second âm q. mode in which the mobile station device, when decoding the link control information" downlink in the format used for scheduling the shared physical uplink channel transmitted on - '"a single antenna port, multiplies the demodulation reference signal
15 of the shared channel of the physical uplink scheduled by the downlink control information by an orthogonal code determined based on the cyclic displacement information in the downlink control information- (13) Additionally, the base station handset of a
The purpose of the present invention is a base station apparatus that communicates with a mobile station apparatus, in which: when the base station apparatus transmits the downlink control information in a predetermined format used for scheduling a shared channel of the physical uplink to the handset of the mobile station.
25 speed, if a first mode. is defined, for said mobile station device, in which the mobile station device multiplies the demodulation reference signal of the physical uplink shared channel scheduled by the downlink control information in the format predetermined by a code orthogonal determined in advance or if a C-
30 Temporary RNTI is used for the transmission of control information from the downward hand, the base station device receives the demodulation reference signal of the shared channel from the mobile station apparatus.
and "side of the physical uplink link multiplied by the orthogonal code determined
, mined in advance and when the base station handset transmits
. the downlink control information in the predetermined format used for scheduling the shared channel of the physical uplink 5 for the mobile station device |, .if a second mode is defined, for said mobile station device, in which the device of the mobile station multiplies the demodulation reference signal of the shared uplink channel scheduled by the downlink control information in the format predetermined by L | m determined orthogonal code .P ~
"", 10 swimming based on cyclic displacement information in the downlink link ~ '' control information, and if an RNTI other than C-RNTI time- -: - V '"is used for the transmission of control information from the downlink, the base station device receives the demodulation reference signal from the shared channel from the mobile station 0
15 physical ascending lace "multiplied by the orthogonal code determined by the mobile station device based on the information of the cyclic displacement in the downlink control information. (14) Furthermore, on the base station device of a modality of the present invention, the RNTI other than the temporary C-RNTI is a 20 C-RNTI or a C-RNTI SPS. (15) In addition, in the base station apparatus of a mode of the present invention, the control information of the link descends - te in the predetermined format is the information for scheduling the shared channel of the physical uplink transmitted by the use of a single antenna port. - dality of the present invention, an RRC signal indicating the first mode or the second mode is transmitted to the mobile station apparatus. (17) Additionally, on the base station apparatus of a modality of the present invention, the mobile station apparatus is considered to set the first mode until the RRC signal is transmitted to the mobile station device.
'8/58 «-.
(18) Furthermore, in the base station apparatus of a modality of the present invention, the temporary C-RNTI is included in a random access response including a random access preamble identifier transmitted by the station apparatus mobile for the base station apparatus. (19) In addition, on the state-of-the-art base station apparatus of the present invention, the downlink control information 'Ínc | using the RNTI other than the temporary C-RNTI is transmitted in a frame. common research space and / or a specific research space. © 10 'lh.o of the mobile station and the downlink link control information in- - dui, the temporary C-RNTI is transmitted in the common research space. ,. y (20) Furthermore, on the one-handed base station device
H uality of the present invention, the common research space is a space
W e constituted by an element of the predetermined control channel, and the specific search space of the mobile station apparatus is a space constituted by an element of the control channel determined based on a C-RNTI which is q RNTI differerite from temporary C-RNTI. (21) Additionally, in the base station apparatus of a modality of the present invention, when the base station apparatus 20 transmits the downlink control information in a format used to schedule the shared channel of the different physical uplink of the predetermined format for the mobile station device,! the base station device receives the demodulation reference signal from the shared channel of the physical uplink which is multiplied by the orthogonal code determined by the mobile station device based on the information of the mobile station. cyclic shift in downlink control information in a different format than the predetermined format, and the shared physical uplink channel is scheduled by the downlink control information in a different format from the predetermined format. r (22) Furthermore, in the base station apparatus of a modality of the present invention, the downlink control information
*. "a tooth in a format other than the predetermined format is the information for, scheduling the shared channel of the physical uplink transmitted on a plurality of antenna ports. (23) In addition, the base station apparatus of a model - 5 of the present invention is a base station apparatus that communicates with a mobile station apparatus, wherein the base station apparatus according to an RNTI used for the transmission of downlink control information used for scheduling a shared physical uplink channel, it receives the ã reference signal, 10 demodulation of the physical uplink shared channel scheduled 4 by the downlink control information, which is multiplied by
N ^ WÇ
W a mobile station apparatus, by an orthogonal code determined in advance or receives the demodulation reference signal of the com-
W. shared of the physical uplink scheduled by the control information of the '15 l and the downlink, which is multiplied by an orthogonal code determined by the mobile station device based on the cyclic displacement information in the downlink control information. (24 ') Furthermore, the Ljma base station apparatus of the present invention is a base station apparatus which communicates with a mobile station apparatus, wherein the base station apparatus , according to a mode indicated by an RRC signal transmitted to the handset of the mobile station, receives, when transmitting the downlink control information in a format used for scheduling a shared channel of the uplink physical transmitted 25 on a single antenna port for said mobile station device, the demodulation reference signal of the shared channel of the physical uplink which is scheduled by said downlink control information, and the demodulation reference signal is multiplied, by the said appearance | ho of the mobile station, by an orthogonal code | determined in advance, or received, when transmitting downlink control information in the format used for scheduling the physical uplink shared channel transmitted by using an antenna port wm "» 10/58 ^ r ~ unique for said mobile station device, the demo-, reference signal, modulation of the shared channel of the physical uplink that is programmed by said control information of the downlink, and the reference signal of demodulation is multiplied by an orthogonal code determined '5 based on cyclic displacement information in said downlink control information by said mobile station device. (25) In addition, the radio communication system of a modality of the present invention is a radio & communication system in which a mobile station device and a radio station device
W, 10 base communicate, in which the handset of the mobile station, when decoding the downlink control information in a predetermined format used to schedule a shared channel of the physical uplink, if a first mode is defined in which the reference signal.
Demodulation rherence of the physical uplink shared channel 15 scheduled by the downlink control information in the predetermined format is multiplied by an orthogonal code determined in advance, or if a temporary C-RNTI is used for the transmission of the control information of the downlink, multiplies the demodulation reference signal of the shared channel of the physical uplink 20 by the orthogonal code determined in advance and when decoding the downlink control information in a predetermined format used for scheduling the shared channel of the link physical upstream, if a second mode is defined in which the demodulation reference signal of the physical uplink shared channel 25 by the downlink control information in the predetermined format is multiplied by an orthogonal code determined based on information on cyclic displacement in the informa downlink control and furthermore, if an RNTI other than the temporary C-RNTI is used for the transmission of downlink control information, 30 multiply the demodulation reference signal of the shared uplink link channel by the orthogonal code determined based on the cyclic displacement information in the downlink control information and transmits the demodulation reference signal of the shared channel of the physical uplink to the handset of the base station; and where the base station handset, when transmitting downlink control information in a predetermined format used to schedule the shared channel of the physical uplink to the handset of the mobile station, if a first mode is defined for said mobile station device, in which the mobile station device multiplies the demodulation reference end of the shared channel
W physical uplink scheduled by the '% 10 downlink control information in the format predetermined by the determined orthogonal code "in advance or if the temporary C-RNTI is used for the transmission *, m · V" of the downlink control information, it receives the demodulation reference signal of the shared channel from the mobile station device. Wb of the physical uplink multiplied by the orthogonal code determined in advance by the handset of the mobile station and when transmitting downlink control information in a predetermined format used for scheduling the shared channel of the physical uplink for the mobile station device, if a second mode is defined, for said mobile station device, in which the mobile station device multiplies the demodulation reference signal of the shared channel of the physical uplink scheduled by the control information of the downlink in the format predetermined by the orthogonal code determined based on the cyclical displacement information in the downlink control information, and if the RNTI other than the temporary C-25 RNTI is used for the transmission of the downlink control information, receives the demodulation reference signal from the mobile channel from the mobile station physical uplink multiplied by the orthogonal code determined based on the cyclic displacement information in the downlink control information by the 30 mobile station device. (26) Furthermore, the radio communication method of an embodiment of the present invention is a radio communication method
H r used on a mobile station device that communicates with a mobile device
. base station, the method comprising the steps of: when decoupling downlink control information in a predetermined format used for scheduling a shared channel of the physical uplink, if a first mode is defined in which the signal demodulation reference number of the physical uplink shared channel is multiplied by an orthogonal code determined in advance or if a temporary C-RNTI is used for transmitting the information
. & 'downlink control, multiply the de- reference signal. ~
¶ 10 modulation of the shared channel of the physical uplink scheduled by the control information of the downlink by the orthogonal code - E 'determined in advance, and when decoding the control information of the downlink in the predetermined format used for a-. ~ Scheduling of the shared channel of the physical uplink, if a second mode is defined in which the demodulation reference signal of the shared channel of the physical uplink is multiplied by an orthogonal code determined based on the information of the cyclic displacement in the control information of the downlink and moreover, if an RNTI other than the temporary C-RNTI is used for transmitting the downlink control information, multiply the demodulation reference signal of the shared channel of the scheduled physical uplink downlink control information using the orthogonal code determined based on the cyclic shift in the downlink control information. (27) In addition, the radio communication method of an embodiment of the present invention is a radio communication method used on a base station apparatus communicating with a mobile station apparatus, the method controlling processing base station handset: when transmitting the control information from the
30 downlink in a predetermined format used for scheduling a shared channel of the physical uplink for the mobile station device, if a first mode is defined, for said device
.
n 13/58 h. tho of the mobile station, in which the handset of the mobile station multiplies the signal - demodulation reference of the shared channel of the physical uplink scheduled by the downlink control information in the predetermined format by an orthogonal code determined in advance 5 .or if a temporary C-RNTI is used for transmission of downlink control information, receive the demodulation reference signal from the multiplied physical uplink shared channel by the mobile station device | by the code orthogonal determined in advance; and when transmitting the downlink 4: 10 control information in the predetermined format used for scheduling the shared channel of the physical uplink to the station apparatus. "mobile, if a second mode is defined, for said mobile station device .m, in which the mobile station device | multiplies the reference + demodulation signal of the shared canaí of the physical uplink link given by the information of downlink control in the format predetermined by an orthogonal code determined based on the cyclic displacement information in the downlink control information, and if an RNTI other than the temporary C-RNTI is used for the transmission of the link control information downward, receive the demodulation reference signal 20 of the shared channel of the physical uplink multiplied by the orthogonal code determined by the mobile station apparatus based on the cyclic displacement information in the downward erilace control information. (28) moreover, the integrated circuit of a modality of the present invention is an integrated circuit used in a mobile station apparatus only with a base station device, where the integrated circuit, when decoding the downlink control information in a predetermined format used for scheduling a shared channel of the physical uplink, if a first mode 30 is defined in which the demodulation reference signal of the physical uplink shared channel is changed by an orthogonal code determined in advance or if a temporary C-RNTI is used for «
14./58
A transmission of downlink control information, multiplies the demodulation reference signal of the shared channel of the physical uplink scheduled by the downlink control information by the previously determined orthogonal code, and when deco - 5 hindering the control information of the downlink in the predetermined format used for "scheduling the shared channel of the physical upstream link, if a second mode is defined in the" the demodulation reference signal of the shared channel of the physical uplink is multiplied by an orthogonal code determined based on the $ g: '10 do.cyclical shift in the downlink control information and "furthermore, if an RNTI other than the temporary C-RNTI is used for '' 's downlink control information transmission, multiply the' demodulation reference signal of the as- «link shared channel. physical scheduled by descending link control information by the orthogonal code determined based on cyclic displacement information in the downlink control information.
(29) In addition, the integrated circuit of one embodiment of the present invention is an integrated circuit used in a base station device that communicates with a mobile station device, where the integrated circuit controls the processing of the device of the base station. base station: when transmitting downlink control information in a predetermined format used for scheduling a shared channel of the physical uplink to the handset station, if a first mode is defined, for said handset device mobile station, in which the mobile station apparatus multiplies a reference signal for demodulating the shared channel of the physical uplink scheduled by the downlink control information in the format predetermined by an orthogonal code determined in advance or if an C- Temporary RNTI is used for a transmission of control information 30 of the downlink, receiving the reference signal of demod Use of the L shared channel of the physical uplink multiplied, by the mobile station apparatus, by the orthogonal code determined in advance; and
P 1 when transmitting the downlink control information in the predetermined format used for scheduling the shared channel of the physical uplink to the mobile station device, if a second mode is defined, for said mobile station device, in which the 5 · mobile station apparatus multiplies the demodulation reference signal of the physical uplink shared by the downlink control information in the format predetermined by an orthogonal code determined based on the displacement information
"Cyclic X in the downlink control information, and if a different RNTI
@ 10 close to the temporary C-RNTI is used for the transmission of the information "downlink control, receive the demodulation reference signal .." tion of the shared channel of the physical uplink multiplied by the orthogonal code determined by the station apparatus based on = information of the cyclic displacement in the control information of the downward link 15.
Effect of the invention According to the present invention, in the radio communication system using OCC for DMRS, the base station apparatus can correctly receive the PUSCH. 20 Brief description of the drawings Figure 1 is a schematic block diagram illustrating a configuration of a mobile station apparatus 1 of the embodiment of the present invention.
Figure 2 is a schematic block diagram illustrating a
Configuration of a base station apparatus 3 provides an embodiment of the present invention.
Figure 3 is a schematic diagram to explain the method of generating DMRS in one embodiment of the present invention.
Figure 4 is a schematic diagram illustrating an example of
30 a configuration of a research space in which the PDCCH is arranged in an embodiment of the present invention.
Figure 5 is a diagram illustrating the relationship between a con-
[m: '4 Assignment of the uplink and an OCC applied to the DMRS in a fashion of the present invention. Figure 6 is a diagram illustrating the relationship between cyclic displacement information and the cyclical displacement applied in DMRS in one of the embodiments of the present invention. Figure 7 is a diagram illustrating the relationship between cyclical displacement information, cyclical displacement. applied to DMRS and OCC in one embodiment of the present invention - Figure 8 is a flow chart illustrating an example of an operation.
F £ 10 - mobile device 1 station operation of a modality of the present invention, ~ "Figure 9 is a flow chart illustrating an example of an operation
The ration of the base station apparatus 3 of an embodiment of the present invention. 15 Figure 10 is a diagram illustrating the relationship between an uplink grant and the OCC applied to DMRS in a second embodiment of the present invention. Figure 11 is a conceptual diagram of a radio communication system according to a first embodiment of the present invention. Figure 12 is a schematic diagram illustrating an example of a radio frame configuration of a downlink in one embodiment of the present invention - Figure 13 is a schematic diagram illustrating an example 25 of an uplink radio frame configuration in one embodiment of the present invention. Best Modes for Carrying Out the Invention (First Mode) A first embodiment of the present invention will be described below in detail with reference to the accompanying drawings. First, a physical channel of the present invention will be described. Figure 11 is a conceptual diagram of a communication system
, ¶ "" m 17/58 4 0 - - radio cation according to the first embodiment of the present invention.
H . In figure .11, the radio communication system includes devices from mobile station 1A to 1C and a device from base station 3. Figure 11 illustrates the assignment of a Signal, Synchronization (SS), a signal downlink reference (DL RS), a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), a shared physical downlink channel (PDSCH), a multicast channel. (PM-CH), a channel indicating the physical control format (PCFICH) and a channel
W hybrid physical ARQ indicator (PHICH) in radio communication (link 'W' 5 10 downward) from the base station 3 device to the = mobile station 1A to lC devices. "'Furthermore, figure 11 illustrates the assignment of a reference signal of the ascenderite link (UL RS), a control channel of the as-. ¥ physical downlink (PUCCH), a shared channel of the uplink 15 physical (PUSCH) and a physical random access channel (PRACH) in radio communication (uplink) from the mobile station devices 1A to 1C to the base station device 3. Next, the station devices mobile station 1A to 1C "will be referred to as the mobile station 1 apparatus. The synchronization signal is a signal used for the mobile station 1 apparatus to synchronize in terms of a frequency domain and a downlink time domain. The downlink reference signal is a signal used for the mobile station device | 1 synchronize in terms of the frequency domain and downlink time domain, used for q mobile station device 1 to measure downlink reception quality 25 or used for mobile station device 1 to perform compensation of channel of the PDSCH and PDCCH, The PBCH is a physical channel used for the diffusion of a control parameter (system information) (diffusion channel: BCH) used in common by the mobile station apparatus 1- The PBCH is transmitted at intervals of 40 ms. Regulation 30 in the 40 ms interval is detected blindly in the mobile station device 1. The PDCCH is a physical channel used to transmit downlink control information (DCl), such as link assignment. downward (or also referred to as a downlink concession) and an upward link concession. The downlink assignment includes information related to the PDSCH modulation scheme and encoding rate (coding and modulation scheme: 5 MCS), information indicating the allocation of the PDSCH radio resources and so on. The uplink concession includes information related to the modulation scheme and the encoding rate of the PUS-CFI, the information indicating the allocation of the radio resources of the PUSCH e.
W so on. £ 10 A plurality of formats are used for the downlink control information. The format for d ~ control information
The downlink is referred to as a DCl format. For example, for the DCl format for the uplink concession, a DCl 0 format used when the mobile station 1 device transmits the PUSCH using a transmission antenna port, a DCl OA format used when the handset of the mobile station 1 transmits a pIurality of data fragments from the uplink using MIMO SM (spatial multiplexing of multiple inputs multiple outputs) to the PUSCH and so on are prepared. The handset of the mobile station 1 monitors the DCl 0 format and the DCl OA 20 format for the PDCCH at the same time and if the DCl 0 format is detached, the PUSCH is transmitted using a transmission antenna port, whereas if the DCI OA format is detected, the PUSCH is transmitted using a plurality of transmission antenna ports (MIMO SM). MIMO SM is a technology in which a plurality of signals 25 is multiplexed and transmitted / received with respect to a channel of a plurality of spatial dimensions carried out by a plurality of transmission antenna ports and a plurality of antenna ports. reception- Here, the antenna port refers to a logical antenna used for signal processing. An antenna port can be composed of a physical antenna 30 or it can be composed of a plurality of physical antennas. On the transmission side using MIMO SM, processing to form an appropriate spatial channel for the plurality of signals (cited as pre-
;
m 19/58 coding) is performed, and a pIurality of signals submitted to the pro-
- termination of pre-coding is transmitted using the plurality of transmission antennas.
On the receiving side using MIMO SM, the processing to properly separate the multiplexed signals in the '5 spatial dimensions' channel is performed on a plurality of received signals using the plurality of receiving antennas- For example, the DCl OA format includes the information indicating the allocation of radio resources to PUSCH (allocation of the resource block
, so), a TPC command (transmit force control) used to transmit 10 PUSCH force control, information used to determine the "cyclic shift used for a uplink reference signal multiplexed. over time with PUSCH (hereinafter referred to as the cyclical displacement information) (cyclical displacement for the demodulation reference signal), information to indicate the number of multiplexed sequences in space and the pre-coding performed on those sequences ( pre-coding information), information related to the modulation scheme, the coding method and the redundancy version (coding and modulation scheme and the redundancy version: MCS & RV) and the information indicating the transmission initial or retransmission of the data of the upstream link (new data indicator: NDÍ) .The redundancy version is the information indicating which part, in the bit strings in which the data of the uplink is encoded. is to be transmitted by the mobile station device 1 on the PUSCH.
The MCS & RV and NDÍ included in the DCl OA format are prepared for each of the plurality of uplink data fragments controlled by the DCl OA format. That is, the base station device 3 can define the transport block size, the modulation scheme and the encoding rate for each uplink data transmitted on the same PUSCH and can indicate the initial transmission or the retransmission- 30 is for the mobile station apparatus 1 for each data of the uplink using the DC1 OA format.
The method of encoding link control information
, kh ~ 20/58 6 descending will be described. First, the base station apparatus 3 links, '' A for downlink control information, a sequence obtained by mixing a 'cyclic redundancy check code (CRC) generated based on the downlink control information with a 5 radio network temporary identifier (RNTI). The mobile station apparatus 1 changes the interpretation of the downlink control information based on which RBTI the CRC code is mixed with. For example, the handset of the mobile station 1, when the code «. CRC'is mixed with the C-RNTI (temporary radio network and 10 cell identity) assigned by the base station 3 device for its own device, "determines that the downlink control information indicates
Q 'a radio resource addressed to your own device, while when the CRC code is mixed with a C-RNTI SPS (semi-permanent scheduling) assigned by the base station device 3 for your own device , the mobile station device 1 determines that the downlink control information indicates the permanent (periodic) assignment of the radio resource to its own device or the permanent release of the permanent radio resource or retransmission to the PUSCH transmitted by the permanent radio resource, 20 The mobile station device 1, when the CRC code is mixed with a C-RNTI T (temporary) assigned to a random access preamble transmitted by your own device in a message. random access 2, determines that the downlink control information indicates the radio resource for retransmitting a random access 3 message transmitted by its own device. The details of the random access will be described later. Next, the fact that the CRC code mixed with the RNTI is added to the downlink control information is simply expressed as that the RNTI is linked to the downlink control information or the RNTI is included in the PDCCH. The handset at mobile station 1 determines that the PDCCH is successfully obtained when the PDCCH is processed by decoding, a
F M 21/58, * 1 m a sequence corresponding to the CRC code mixed with the RNTI is de-scrambled with the RNTI stored on its own device, and no error is detected based on the scrambled CRC code. This processing is referred to as blind decoding. 5 PDSCH is a physical channel used to transmit paging information (paging channel: PCH) or system information not divided into PBCH, that is, information other than BCH and downlink data (downlink shared channel) : DL-SCH). ; J PMCH is a physical channel used to transmit information (multi-channel -% 10 fusion: MCH) related to MBMS (multimedia broadcast and multicast service). PCFICH is a physical channel used to transmit information
L. yP tion indicating a region in which the PDCCH is arranged. PHICH is a physical channel used to transmit the HARQ indicator indicating the success / failure of the uplink data decoding received by the base station apparatus 3. When the base station apparatus 3 is successful in decoding of all uplink data included in the PUSCH, the HARQ indicator indicates ACK (confirmation), while when the base station 3 device fails to decode at least a fragment of the included uplink data in PUSCH, the HARQ indicator indicates NACK (negative confirmation). It can be so configured that a plurality of HARQ indicators indicating success / failure of decoding for each of the plurality of data fragments of the uplink included in the same PUSCH is transmitted in a plurality of PHICHs. The uplink reference signal is a signal used for the base station 3 device to synchronize with the uplink time domain, used for the base station 3 device to measure the quality of the uplink reception or used for the apaFe | ho of the 30 base station 3 perform channel compensation of the PUSCH or PUC-CH. The reference signal of the uplink is subjected to the diffusion of the code using a CAZAC sequence (constant and autocorrelated amplitude).
~
~ NT '
zero) in the split radio resource assuming SC-FDMA.
The CAZAC sequence is a sequence that has a constant amplitude in the time domain and frequency domain and is excellent in the autocorrelation characteristics.
Since it has constant amplitude in the do-. 5 time, PAPR (peak to average force) can be suppressed low.
Cyclic delay is applied to DMRS in the time domain.
This cyclic delay in the time domain is referred to as a cyclic shift.
The skew displacement corresponds to the phase rotation of the
and CAZAC rate by a subcarrier unit in the frequency domain. . The uplink reference signal includes a DMRS (demodulation reference signal) that is multiplexed in time with the MP to PUSCH or PUCCH and transmitted and which is used for channel compensation for PUSCH and PUCCH, and an SRS (audible reference signal) which is transmitted independently from PUSCH and PUCCH and which is used for the base station apparatus 3 to estimate the status of the uplink link channel.
For DMRS, not only cyclic displacement, but also an OCC (orthogonal coverage code) is used.
The OCC is a sequence (broadcast signal) in which the CAZAC sequence in the frequency domain is
20 submitted to the diffusion of the code by the SC-FDMA symbol unit in the time domain.
The SC-FDMA symbol in the time domain can be subjected to code diffusion with the OCC after the SC-FDMA symbol is generated, The OCC used for the DMRS is determined by using the information
25 cyclical displacement included in the uplink concession.
An amount of displacement of the cyclic displacement used for the DMRS is determined from the information of the cyclic displacement included in the concession of the ascendent link, a specific parameter for the base station apparatus broadcast from the base station apparatus, and
30 a random number determined by using a physical cell ID assigned to a cell managed by the base station apparatus from a network and so on as an input.
g PUCCH is one. physical carial used to transmit the% uplink control (UCl) information which is the information used to control the communication such as channel quality information indicating the, downlink channel quality, a schedule request. 5 ment (SR) indicating a request for assignment of an uplink radio resource, ACK / NACK indicating success / failure of the downlink data decoding received by the mobile device 1 and so on.
.m The PUSCH is a physical channel used to transmit the data of the 4 10 uplink and the uplink control information. The 'PRACH is a physical channel used to transmit a random access preamble »r". PRACH has the most important objective of synchronizing the a .. mobile device 1 with the base station 3 device in the domain In addition, a request for reconnection and a request for assignment of an uplink radio resource is also used for initial access, assignment, 15 Random access.of the present invention will be described below. Random access has two access methods, that is, a random access based on containment and a random access without based on containment 20. Random access based on containment is an access method with a possibility of collision between mobile station 1 devices and is a random access generally prepared. Random access without a containment base is an access method in which there is no collision between mobile station 1 devices and is a random access prepared under the initiative 25 of the device from base station 3 in a special case such as assignment in order to quickly synchronize the handset from mobile station 1 with the handset from base station 3. In random access, the handset from mobile station 1 transmits only the preamble for synchronization. The preamble includes a signature which is a signal pattern expressing information and can express information with several bits preparing dozens of types of signatures. The mobile station 1 apparatus transmits the 6-bit information using the
P '· 0 @ scope and thus 64 types of signatures are prepared.
, The base station apparatus 3, when receiving the transmitted preamble from the mobile station 1 apparatus, calculates a difference in the synchronization regulation between the mobile station apparatus 1 and the base station apparatus 3 from of the preamble and perform the scheduling for the mobile station 1 device to transmit the message 3- Then, the base station device 3 assigns a C-RNTI T to the mobile station 1 device that transmitted the preamble, includes and has an RA-RNTI (temporary random access radio network identifier) corresponding ~: 10 with the PRACH that received the preamble in the PDCCH and transmits a random access response (message 2) including the information the difference 0 '- "of the regulation for synchronization, scheduling information, the C-RNTI T and the number of the preamble received (also referred to as a random ID =% P or a preamble ID) in the PDSCH indicated by the assignment of the 15 radio feature included in that PDCCH,, If it is confirmed that the RA-RNTI is included in the detected PDCCH, the mobile station device 1 confirms the contents of the random access response provided in the PDSCH indicated by the allocation of the radio resource included in the PDCCH. The mobile station device 1 extracts a response including the number of preamble signatures transmitted by its own device, corrects the difference in the synchronization regulation and transmits, via the assigned PUSCH radio resource and the transmission formatQ to message 3 including the C-RNTI notified of the base station 3 device in advance or a message requesting the connection (RRC connection request message 25) Olj a message requesting the restoration of the connection (message, request to re-establish the connection R- RC). The base station device 3, when it receives message 3 from the mobile station device 1, transmits a containment resolution (message 4) to the mobile station device (message 4) to determine whether a collision is occurring or not between mobile station devices 1 by using the C-RNTI or the information to identify the mobile station device.
included in the message requesting the connection or message requesting the restoration of the connection included in the received message 3. The device of the base station 3, when the decoding of message 3 fails, instructs the handset of the mobile station 1 to retransmit message 3 using the DCl 0 format including C-RNTI T corresponding to message 3 failed to decode. Uplink data (UL-SCH) and downlink data (DL-SCH) and so on are transport channels. The unit in which the uplink data is transmitted by PUSCH t 10 and the unit in which the uplink data is transmitted by 'PDSCH are referred to as transport blocks. The transport block is a
The ± unit manipulated by a MAC layer (media access control), e. v HARQ (retransmission) control is performed for each transport block. 15 On a physical layer, the transport block is associated with a code word, and signal processing, like coding, is performed for each code word. The transport block size is the number of bits in the transport block. The handset of mobile station 1 recognizes the transport block size based on the number of blocks of 20 physical resource (PRB) and MCS (MCS & RV) indicated by the information indicating the allocation of the radio resource included in the uplink concession. or in the concession of the downlink. A radio frame configuration of the present invention will be described below. Figure 12 is a schematic diagram illustrating an example of a downlink radio frame configuration in an embodiment of the present invention. In figure 12, the horizontal geometric axis indicates the time domain and the vertical geometric axis indicates the frequency domain. As illustrated in figure 12, the downlink link radio frame includes a plurality of pairs of physical resource blocks (PRB) of the downlink (a region surrounded by a dashed line in figure 12, for example). This pair of physical resource blocks of the link
"> - pending is a unit for assigning the radio resource and so on and on and includes a frequency band having a predetermined width (PRB bandwidth; 180 KHz) and a time zone (2 spaces = 1 subframe; 1 ms) 5 A pair of downlink physical resource blocks includes two downlink physical resource blocks (PRB bandwidth x space) contiguous in the time domain. unit surrounded by a bold line in Figure 12) includes 12 subcarriers (15 KHz) in the frequency domain and 7 @ 10 OFDM symbols (orthogonal frequency division multiplexing) (71 µs) "in the time domain.
Y 6 - In the time domain, there is a space (0.5 ms) composed of m 7 OFDM symbols (71 µs), a subframe (1 ms) composed of 2 spaces and ~ a radio frame (10 ms) composed of 10 subframes- The 15 ms time interval which is the same as the subframe is also referred to as a transmission time interval (TTI) - In the frequency domain, a plurality of downlink link physical resource blocks are arranged dè according to the bandwidth of the downlink. A unit consisting of a subcarrier and an OFDM symbol is cited as an element of the descending erilace feature. The layout of the physical channel assigned to the downlink will be described below. In each subframe of the downlink, the PDC-CH, the PCFICH, the PHICH, the PDSCH, the reference signal of the downlink and so on are arranged. The PDCCH is arranged from the first OFDM symbol in the subframe (a region hatched in figure 12) - The number of OFDM symbols in which the PDCCH is arranged is different for each subframe, and the information indicating the number of OFDM symbols in each one of which the PDCCH is arranged is broadcast by the PCFICH. In each subframe, a PDCCHS pllllity is multiplexed in frequency and multiplexed in time. The PCFICH is arranged in the first OFDM symbol in the subframe and is mLl | tip | expressed in frequency with the PDCCH. PHICH is multiplexed in frequency with the PDCCH in the same OFDM symbol (a region hatched
· With crosshair lines in figure 12). The PHICH can be arranged only on the first ofdm symbol in the subframe or it can be arranged in a manner distributed in a plurality of the OFDM symbols in each of the 5 in which the PDCCH is arranged.
In each subframe, a PHI-CHs pIurality is multiplexed in frequency and multiplexed in code.
After a predetermined time of PUSCH transmission (4 ms later, 4 subframes later or 4 TTIs later, for example
, plo), the mobile station device 1 receives the HARQ return for its * 10 PUSCH on the PHICH in the downlink subframe.
Which PHICH * "in the downlink subframe the HARQ Indicator for the PUSCH is'" arranged for is determined based on the number of physical resource blocks
= m with the lowest number (in the lowest frequency domain) in the physical resource blocks assigned to that PUSCH and based on the information included in the uplink concession used to determine the cyclical shift used for reference of the uplink that is multip | exited in time with PUSCH.
The PDSCH is arranged in the OFDM symbol (a region not hatched in figure 12) different from the OFDM symbols in which the PDCCH, the PC-
20 FICH and PHICH are arranged in the subframe.
The radio resource of pdsch is assigned using downlink assignment.
The radio resources of the PDSCH and the PDCCH including the downlink assignment used for this time domain PDSCH assignment are arranged in the subframe of the same downlink.
In each subframe, a plurality of
25 of the PDSCHs are multiplexed in frequency and multiplexed in space.
Although the reference signal of the downlink is not shown in figure 12 for simplification of explanation, the reference signal of the erilace descendentè is arranged in a distributed manner in the frequency domain and in the time domain. Figure 13 is a schematic diagram illustrating an example of an uplink radio frame configuration in a model of the present invention.
In figure 13, the horizontal geometric axis indicates the time domain and the vertical geometric axis indicates the frequency domain. As shown in figure 13, the uplink link radio frame includes a plurality of link pairs of physical resource blocks. ascending (a region surrounded by a dashed line in figure 13, for example). This pair of uplink physical resource blocks is a unit for allocating the radio resource and so on and includes a frequency band having a predetermined width (PRB bandwidth: 180 KHz) and a time zone (2 spaces = 1 sub-frame. 1 ms). è 10 A pair of uplink physical resource blocks includes' two uplink physical resource blocks (PRB bandwidth x h "" space) contiguous in the time domain One physical resource block of the uplink
Ascending P lace (unit surrounded by a bold line in figure 13) ~ includes 12 subcarriers (15 KHz) in the frequency domain and 7 SC-15 FDMA symbols (71 µs) in the time domain. In the time domain, there is a space (0.5 ms) made up of 7 SC-FDMA symbols (single carrier multiple frequency division) (71 µs), a subframe (1 ms) composed of two spaces and a radio board (10 ms) composed of 10 subframes. The time interval 20 of 1 ms which is the same as that of the subframe is also referred to as the transmission time interval (TTI) - In the frequency domain, a plurality of uplink physical resource blocks is arranged according to the uplink bandwidth. A unit made up of a subcarrier and a SC-FDMA symbol is cited as an uplink resource element. The physical channel assigned in the uplink radio frame will be described below. The PUCCH, PUCSH, PRACH, the uplink reference signal and so on are arranged in each uplink subframe. The PUCCH is arranged in the physical resource block of the uplink (a region hatched diagonally) in · both ends of the uplink band. In each subframe, a plurality of PUCCHs are multiplexed in frequency and multiplexed in
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code.
·. The PUSCH is arranged in the pair of physical resource blocks of the uplink (a non-hatched region) different from the physical resource block of the uplink in which the PUCCH is arranged. The radio resource for PUSCH is allocated using the uplink grant and arranged in an uplink subframe after a predetermined time (4 ms later, 4 subframes later or 4 TTIs later, for example ) from the downlink subframe in which the PDCCH including this uplink concession is arranged. In each subqua-. € 10, a plurality of PUSCHS is multiplexed in frequency and spatially multiplexed. "'The information indicating the subframe and the physical resource block of the uplink in which the PRACH is disposed is disseminated by the device.
Base station boy. The uplink reference signal is multiplexed in time with PUCCH or PUSCH. For example, DMRS time multiplexed with PUSCH is arranged in the fourth and eleventh SC-FDMA symbols in the subframe. A configuration of the apparatus of the present invention will be described below. Figure 1 is a schematic block diagram illustrating a configuration of an apparatus of the mobile station 1 of an embodiment of the present invention. As shown in the figure, the mobile station apparatus 1 includes an upper layer processing unit 101, a control unit 103, a receiving unit 105, a transmitting unit 25 and 107 a transmitting / receiving antenna 109. The upper layer processing unit 101 includes a radio resource control unit 1011 and a determination unit 1013. The receiving unit 105 includes a decoding unit 1051, a demodulation unit 1053, a demultiplexing 1055, a radio receiving unit 3057 and a channel measuring unit 1059. The transmitting unit 107 includes an encoder unit 1071, a modulation unit 1073, a multiplexing unit 1075, a
.
r 30/58 m 4 'radio transmission 1077 and an uplink reference signal generation unit t 1079- The upper layer processing unit 101 releases uplink data generated by a user operation and so 5 forward to the transmission unit 107. In addition, the upper layer processing unit 101 performs the processing of a medium access control (MAC) layer, a packet data convergence protocol (PDCP) layer, a league control layer ··, radio tion (RLC) and a radio resource control layer (RRC). : 10 Furthermore, the upper layer processing unit 101 generates the "control information for control of the receiving unit 105 and the transmission unit 107" based on the link control information &
Downward W received by the PDCCH and so on and releases the control information r for the coritrole unit 103. 15 The radio resource control unit 1011 provided in the upper layer 101 processing unit manages various information from placement of your own device. For example, the radio resource control unit 1011 manages an RNTI such as a C-RNTl'and an uplink transmission mode qLle will be described later. t 20 In addition, the radio resource control unit 1011 generates information displayed on each uplink channel and releases the information to transmission unit 107.. The determination unit 1013 provided in the processing urity of the upper layer 101 determines whether the cyclical displacement information included in the uplink concession corresponds or not with the OCC applied in the DMRS by using the uplink transmission mode. , the RNTI and so on managed by the radio resource control unit 1011. In addition, the determination unit 1013 determines the cyclic shift and the OCC applied in the DMRS according to the cyclic shift information based on in the result of the determination, it generates the control information for the transmission unit 107 to apply the determined cyclic displacement and the OCC rio DMRS and releases the control information for the control unit 103.
t The control unit 103 generates a control signal to control the receiving unit 105 and the transmitting unit 107 based on the control information of the upper layer processing unit 5 101. The control unit 103 releases the control signal generated for the receiving unit 105 and the transmitting unit 107 and controlling the receiving unit 105 and the transmitting unit 107, The receiving unit 105 separates, demodulates and decodes the received signal received from the apparatus gives -. base station 3 via the transmit / receive antenna 109 according to 1.0 with the control signal inserted from the control unit 103 and releases the - = decoded information for the upper layer processing unit 101. The radio reception unit 10.57 converts the signal from the link »
Downward V received through the transmit / receive antenna 109 for "15 an intermediate frequency (downward conversion), removes an unnecessary frequency component, controls the amplification level, so that the signal level is maintained properly, orthogonally demodulates the signal based on a phase component and an orthogonal component of the received signal and converts the orthogonal demodulated analog signal to a digital signal. The 1057 radio receiving unit removes a corresponding portion with a guard interval (GI) of the converted digital signal, performs the fast Fourier trafformation (FFT) on the signal from which the G1 was removed and extracts a signal from the frequency domain. The demultiplexing unit 1055 separates the extracted signal to 25 o PHICH, PDCCH, PUSCH and the downlink reference signal, respectively. This separation is made based on the allocation information of a radio resource notified by the allocation of the downlink and so on. Furthermore, the 1055 demultiplexing unit compensates for the PHICH, PDCCH and PDSCH channels based on the values. 30 re estimation points for the canals inserted from the 1059 channel measurement unit. In addition, the 1055 demultiplexing unit releases the separate downlink reference signal for the 1059 measurement unit and channel.
The demodulation unit 1053 multiplies and synthesizes a corresponding code for the PHICH, demodulates the synthesized signal in the binary phase shift (BPSK) switching modulation scheme and releases the result for the 1051 decoding unit. decoding 1051 decodes the PHICH addressed to its own device and releases the decoded HARQ indicator for the upper layer processing unit 101. The 1053 demodulation unit demodulates the PDCCH - in a QPSK demodulation scheme and releases the result for the decoding unit 10 to 1051. decoding unit 1051 attempts to decode the PDCCH blindly and if blind decoding is successful, free W, «
W decoded downlink control information and RNTI included. downlink control information for the top layer 101 processing unit. 15 Demodulation unit 1053 demodulates the PDSCH in a modulation scheme notified in the downlink assignment such as quadrature phase shift switching. (QPSK), 16QAM (quadrature amplitude modulation), 64 QAM and so on and release the result for the 1051 decoding unit. The 1051 decoding unit 20 decodes the result based on the information related to the encoding rate notified in the downlink control information and releases the decoded downlink data (transport block) to the upper layer processing unit
101. 25 The 1059 channel measurement unit measures a path loss and downlink channel status from the downlink reference signal input of the demultiplexing unit 1055 and releases the measured path loss and the channel status for upper layer processing unit 101. Furthermore, the measurement unit of channel 1059 calculates the downlink channel estimate value from the downlink reference signal and releases the result for the 1055 demultiplexing unit.
'^ €' The transmission unit 107 generates a reference signal from the 2 uplink according to the control signal inserted from the control unit 103, encodes and modulates the uplink data (transport block) inserted from the processing unit of the upper layer 1Q1, 5 multiplexes the PUCCH, PUSCH and the generated uplink reference signal and transmits the result to the base station apparatus 3 via the transmit / receive antenna 109, The "1071 encoding unit performs encoding in the uplink control information inserted from the upper layer processing unit 101, such as convolution encoding, block encoding and so on and performs »turbo encoding on the uplink data with basis of information - b · Yh, 'related to the encoding rate notified when the link was granted
Ascending C. h Modulation unit 1073 modulates the inserted encoding bit of encoding unit 1071 in a modulation scheme notified in the downlink control information, such as BPSK, QPSK, 16QAM, 64QAM and so on or a modulation scheme determined in advance for each channel. Modulation unit 1073 maps the modulation symbol strings of the plurality of 20 uplink data fragments transmitted by the same PUSCH using MIMO SM in a number of sequences larger in number than the number of the uplink data fragments transmitted by the same PUSCH and performs the pre-coding on those sequences based on the number of sequences notified in the grant of the spatially multiplexed uplink and the information instructing the pre-coding for those sequences. The uplink reference signal generation unit 1079 generates a known sequence for the base station apparatus 3 and acquired according to a rule determined in advance 30 based on a 'physical code identifier' (cited as PCl, cell ID and so on) to identify the base station device 3, the bandwidth on which the uplink reference signal is arranged,
a cyclical shift notified when the uplink is granted, and so on.
The multiplexing unit 1075 rearranges the modulation symbols of the PUSCH to compare according to the control signal inserted from the control unit 103 and then performs the discrete Four-er (DFT) transformation on them and multiplexes the PUCCH and PUSCH signals with the uplink reference signal generated for each port of the transmission antenna.
The 1077 radio transmission unit performs fast reverse Fourier (IFFT) transformation on the multiplexed signal for
- 10 SC-FDMA system, adds the guard interval for the SC-FDMA symbol modulated in SC-FDMA, generates a digital baseband signal, converts the digital baseband signal to an analog signal, generates a component in phase and an orthogonal component of the intermediate frequency from the analog signal, removes the excessive frequency component with respect to the intermediate frequency band, converts the signal with the intermediate frequency to a signal with a high frequency (upward conversion), removes the excessive frequency component, amplifies the force and releases the result for the transmit / receive antenna 109 for transmission.
Figure 2 is a schematic block diagram illustrating a
'20 configuration of the base station apparatus 3 of an embodiment of the present invention.
As illustrated in the figure, the base station apparatus 3 includes an upper layer processing unit 301, a control unit 303, a receiving unit 305, a transmitting unit 307 and a transmitting / receiving antenna 309. The processing unit
Top layer 301 processing includes a radio resource control unit 3011 and a downlink control information generating unit 3013. Receiving unit 305 includes a decoding unit 3051, a demodulation unit 3053, a 3055 demultiplexing unit, a 3057 radio receiving unit and a
30 channel measurement unit 3059. The transmission unit 307 includes a 3071 coding unit, a 3073 modulation unit, a 3075 multiplexing unit, a 3077 radio transmission unit and a reference signal generation unit downlink link g 3079. The upper layer processing unit 301 performs the processing of a medium access control layer (MAC), a 5 layer packet data convergence protocol (PDCP), a link control layer radio (RLC) and a radio resource control layer (RRC). Furthermore, the unit's processing unit
Top layer 301 generates the control information for the control of the receiving unit t 305 and the transmission unit 307 and releases the information from:. 10 control for control unit 303. 'The control unit for the radio resource 3011 provided in the unit. The processing capacity of the upper layer 301 generates or obtains from a node.
Upper H, downlink data (transport link), an RRC signal and a MAC CE (control element) disposed in the downlink link PDSCH and releases them to the 307 transmission unit. radio resource control unit 3011 manages various types of placement information for each of the mobile station 1 devices. For example, the radio resource control unit 3011 performs RNTI management, such as assignment of a C-RNTI for the device of the mobile station 1 and of a mode of transmission of the upright face defined for the device of the mobile station 1. The downlink control information generation unit 3013 provided in the unit processing layer of the upper layer 301 generates the downlink control information transmitted by the PDCCH. The downlink control information generation unit 3013 generates an uplink grant including the cyclic shift information corresponding to the OCC used for the DMRS and the uplink grant including the cyclic shift information not corresponding to the OCC used for DMRS. 30 Downlink control information generation unit 3013 determines which uplink concession should be generated according to the uplink transmission mode defined
.
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& do for the mobile station 1 device managed by the controk unit radio resource 3011, either the uplink grant indicates a permanent PUSCH radio resource or the PUSCH radio resource only for a subframe, or the uplink grant 5 indicates message retransmission 3 and so on against. Does the control unit 303 generate control signals to control the receiving unit 305 and transmission unit 307 based on the control information from the upper layer processing unit 301. The control unit 303 releases the generated control siren for the * 10 receiving unit 305 and the transmitting unit 307 and controls the 'receiving unit 305 and the transmitting unit 307.' "'The control unit reception 305 separates, demodulates and decodes the received signal, received from the mobile station 1 device via the transmit / receive antenna 309 according to the control signal inserted from the control unit 303 and releases the information decoded to the top layer processing unit 301. The radio receiving unit 3057 converts the uplink signal received through the transmit / receive antenna 309 to an intermediate frequency (downward conversion), removes an unnecessary frequency component, controls - 20 la the amplification level, so that the level) of the signal is maintained appropriately, demodulates the signal orthogonally based on the phase component and an orthogonal component of the received signal and converts the analogue "demodulated orthogonally for a digital signal. The radio receiving unit 3057 removes a portion corresponding to a guard interval (G1) of the converted digital signal. The radio receiver unit 3057 performs rapid Fourier transformation (FFT) on the signal from which g] has been removed, extracts a signal from the frequency domain and releases the result to the 3055 demultiplexing unit. The 3055 demultiplexing unit separates the signal inserted from the radio receiving unit 3057 to the PUCCH, the PUSCH, a signal such as an uplink reference signal, and so on. This separation is performed based on the radio resource assignment information included in the upward link concession determined by the base station 3 device in advance at the radio resource control unit 3011 and notified to each device in the mobile station 1. In addition, the 3055 demul'tiplexing unit compensates the PUC-5 CH and PUSCH channels against the estimated values of the inserted channels of the 3059 channel measurement unit. In addition, the 3055 demultiplexing unit releases the separate uplink reference signal for the 3059 channel measurement unit. The 3053 demodulation unit performs the Fou- transformation. , 10 discrete inverse rier (IDFT) in the PUSCH, obtains a modulation signal and de u modulates the received signal for each of the modulation symbols of the PUC- "'CH and PUSCH using a modulation scheme determined in advance
. tat, such as BPSK (binary phase shift switching), QPSK, 16QAM, 64QAM and so on or notified by your own a-1t5 pair in advance when granting the uplink for each of the mobile station 1 devices. of demodulation 3053 separ, the symbols for modulating a pIurality of fragments of data from the upstream en | ace transmitted by the same PUSCH using the MIMO SM based on the number of sequences to be spatially multiplexed 20 which is notified in advance when the uplink is granted for, each of the devices of the mobile station 1 and information indicating the pre-coding performed in the sequences.
The decoding unit 3051 decodes the encoded PUCCH and PUSCH encoding bits with an encoding rate set in advance or notified in advance when the uplink is granted by its own device to the mobile station device in the method encoding code and releases the decoded uplink data and uplink control information to the upper layer processing unit 301. In the case of PUSCH retransmission, the decoding unit 3051 performs decoding using the coding maintained in a weapon: temporary HAEQ zoning inserted from the processing unit of the
upper layer 301 and the demodulated coding bit. The unit of measurement of the channel 3059 measures the estimated values, the quality of the channel and so on of the channel from the reference signal of the uplink inserted from the demultiplexing unit 3055 and releases the result for the 5 unit demultiplexing unit 3055 and the upper layer processing unit 301. The transmitting unit 307 generates a downlink reference signal according to the control signal inserted from the unit. · D, and control 303, encodes and modulates the HARQ indicator, downlink control information, and downlink data entered from the top layer processing unit 301, multiplexes the PHICH,
P * "PDCCH, PDSCH and the downlink reference signal and transmit. The result to the mobile station device 1 via the transmit / receive antenna 309.
1.5 The 3071 encoding unit performs encoding on the HARQ indicator, downlink control information and downlink data entered from the upper layer processing unit 301 using a pre-determined eodification method such as block, convolution encoding, tube encoding, and so on, or perform encoding using an encoding method determined by the 3011 radio resource control unit. The 3073 modulation unit modulates the encoding bits entered from the encoding unit 3071 by a modification scheme determined in advance, such as BPSK, QPSK, 16QAM, 64QAM and so on, or determined by the control unit of radio resource 3011. The generation unit of the reference link signal descen - tooth 3079 generates a known sequence for the mobile station device 1, as a downlink reference signal, acquired in accordance with m a rule determined in advance based on the physical cell identifier (PCl) to identify the base station apparatus 3 and so on. The 3075 multiplexing unit multiplexes the downlink reference signal generated with the modulation symbol
>
W & i side of each channel. ,. The radio transmission unit 3077 performs the fast inverse Fourier transformation (IFFT) in the multiplexed modulation symbol and so on to perform the modulation in the OFDM system, adds the 5 guard interval to the OFDM signal modulated in OFDM, generates a digital baseband signal, converts the digital baseband signal to an analog signal, generates a phase component and an orthogonal component of the intermediate frequency from the analog signal, removes an excessive frequency component with with respect to the intermediate frequency band, count 10 converts the signal with the intermediate frequency to a signal with a high frequency. "(upward conversion), removes an ex- frequency component." "'. cessive, amêjlifica the force and release the result for the transmitting antenna.% G are / receive 309 for transmission Figure 3 is a schematic diagram to explain a method 15 of generating DMRS in one embodiment of the present invention. the horizontal geometric is the time domain. First, the cyclical shift is applied in the CAZAC sequence generated by the mobile station device 1 (SlOO step). Subsequently, the CAZAC sequence in which the cyclic shift was applied is dL | p | icated (step S1O1) and multiplied by OCC (step S102). Subsequently, the CAZAC sequence multiplied by the OCC is mapped onto the physical resource block to which the PUSCH is assigned, the fast inverse Fourier transformation (IFFT) is performed and a SC-FDMA symbol is generated (step S103). The generated SC-FDMA symbol is mapped 25 as the fourth and eleventh SC-FDMA symbols in the subframe. The multiplication of the OCC in [1.1] corresponds to the non-application of the OCC to
J DMRS (step S102 is omitted). Furthermore, the non-application of the OCC (step S102 is omitted) corresponds with the multiplication of the OCC in [1.1]. A research space of the present invention will be described below. Figure 4 is a schematic diagram illustrating an example of a configuration of the research space in which the PDCCH is arranged in an embodiment of the present invention.
In figure 4, the geometric axis
"horizontal indicates a number identifying an element of the control channel (CCE). In figure 4, a unit surrounded by a bold line in figure 4 is a candidate on which the PDCCH should be placed (hereinafter 5 as" candidate of the PDCCH ") composed of a plurality of continuously numbered control channel elements.
The PDCCH candidate diagonally hatched in figure 4 is a PDCCH candidate in one, 'specific research space of the mobile station apparatus (EU - space
»Specific search F: USS) - The PDCCH candidate hatched in a * 10 lattice state in figure 4 is a PDCCH candidate in a space of% '0, common search (CSS). "'s' The common research space is a common space between a
, pIurality of the handsets of the mobile station 1 and is a space in which the PDCCH for a plurality of the handsets of the mobile station 1 and / or the 15 PDCCH for a specific handset of the mobile station 1 are / is disposed.
The search space specific to the mobile station device is a space in which the PDCCH for the specific mobile station device 1 is arranged and is a space configured for each device of the mobile station 1. The search space is a set of candidates from the PDC-20 CH.
The PDCCH candidate is composed of a plurality of elements of the control channel (CCE). A control channel element is composed of a number of resource elements scattered over a frequency domain and a time domain within the OFDM symbol in which the PDCCH in the same subframe is arranged. 25 With regard to the research space, a different research space is configured for each number of elements in the control channel constituting the candidate of the PDCCH.
In Figure 4, different common research spaces are configured for c) PDCCH candidate consisting of four elements of the control channel and the PDCCH candidate consisting of eight elements of the control channel.
With respect to the mobile station device specific search space, different mobile station device specific search spaces are configured for ·
the PDCCH candidate consisting of an element of the control channel, the
'PDCCH candidate consisting of two elements of the control channel, the PDCCH candidate consisting of four elements of the control channel and the PDCCH candidate consisting of eight elements of the channel. 5 The common search space is configured from zero to fifteenth elements of the control channel.
The number of PDCCH candidates and the number of elements of the control channel constituting the specific research space of the mobile station apparatus are determined in advance
· Poorly, and the number of elements of the control channel constituting the 10 oz. Search space specific to the mobile station device is determined by the "hushing" function using the C-RNTI assigned by the "" "base station device 3 to the handset of mobile station 1 as an In addition
. moreover, the research space specific to the mobile station apparatus consists of different control channel elements for each subframe.
A part of or the set of specific search spaces other than the mobile station device can be duplicated for different mobile station devices 1- The plurality of specific search spaces of the mobile station device and the plurality of spaces 20 common search elements constituted by the different numbers of the elements of the control channel for the same device of the mobile station 1 can be constituted by the same element of the control channel or they can be constituted by different elements of the control channel. This is, a part of or the set of candidates from the PDCCH that constitute the different pIurality of the research spaces can be duplicated.
A way of transmitting the uplink of the present invention will be described below.
Figure 5 is a diagram illustrating a relationship between the uplink grant and the OCC applied to DMRS in a mode of the present invention.
The mobile station apparatus 1 of the present invention includes a mode 1 not using the OCC for DMRS multiplexed in time with the PUSCH and a mode 2 using the OCC for the multiplexed DMRS.
time with PUSCH as the transmission mode of the uplink. The uplink transmission mode of the mobile station 1 device is defined by the base station device 3. The base station device 3 notifies the mobile station 1 device of the information indicating the transmission mode of the base station. uplink defined using an RRC (radio resource control) or similar signal. The RRC signal is the information used to control radio resources and transmitted by the PDS-CH.
The handset of mobile station 1 performs blind decoding s · 10 to DCl 0 format including C-RNTI, DCl 0 format including C-RNTI 'SPS, and DCl 0 format including C-RNTI T in transmission mode of the f $ uplink 1 in the common search space and performs the decoding -. ,, blind action for DCl 0 | nc] format using C-RNTI and DCl 0 format including C-RNTI SPS in the specific research space of the mobile station 15 device. In the mobile station 1 device in mode 1, whatever the RNTI included in the DCl 0 format, the OCC is invalid. The OCC being invalid means that the cyclical displacement information included in the upward flow concession is not associated with the OCC used for DMRS. The 20 OCC being valid means that the cyclic displacement information included in the uplink grant is associated with the OCC used for the DMRS. The mobile station 1 device in mode 2 performs blind decoding to DCl 0 format including C-RNTI, DCl 0 format including 2'5. C-RNTI SPS and the DCl 0 format including C-RNTI T in the common search space and performs blind decoding for DCl 0 format and in DCl OA format including C-RNTI and DCl 0 format and DCl OA format including o C- RNTI SPS in the research space specific to the mobile station device. The handset of mobile station 1 in mode 2 determines whether the OCC 30 is valid or invalid based on which of the RNTI is included in the grant of erdace ascenderite (in DCl 0 format and in DCl OA format). The handset of mobile station 1 in mode 2 determines that the OCC is valid if the C-RNTI à is included in the uplink concession.
and "Furthermore, if the C-RNTI SPS is included in the uplink grant and this uplink grant instructs to transmit the permanently assigned PUSCH, the mobile station device 1 in mode 2 determines that the OCC is valid If the uplink grant including the C-RNTI SPS does not instruct to retransmit, the mobile station 1 device in mode 2 determines that the OCC is invalid- If the uplink grant including the C -RNTI SPS - will transmit the PUSCH permanently assigned, the value of NDI 3- 10 of that uplink lease is set to 1. If the uplink lease including the C-RNTI SPS instructs to activate the activation (or - & initiation), restoration or release of PUSCH assignment permanently
Once assigned, the NDI value of this uplink lease is set to zero- 15 Furthermore, if the uplink lease including the C-RNTI SPS does not instruct to retransmit, that is, if the NDI value is zero , the cyclic shift information included in the uplink grant is defined for a specific code point ('000', for example). The period of the PUSCH radio resource permanently assigned to the mobile station 1 device or similar is notified from the base station device 3 to the mobile station 1 device in advance by the RRC signal. The C-RNTI T is used to instruct the mobile station device 1 to trigger the retransmission of the random access message 3. However, "25 since the base station device 3 failed to decode message 3 including information to identify the handset of the mobile station 1, the handset of the base station 3 cannot recognize which device of the mobile station 1 transmitted the message 3- If the handset of the mobile station 1 in mode 1 invalidates the OCC and 30 performs the retransmission of the message 3 and the mobile station device 1 in mode 2 validates the OCC and transmits message 3, since the base station device 3 cannot determine whether or not the OCC is applied to the
3, DMRS multiplexed in time with the PUSCH of message 3 and transmitted, "channel compensation cannot be performed correctly on the PUSCH, and this causes the problem that the reception of message 3 fails. So, the handset of the mobile station 1 in mode 2 it determines that 5 the OCC is invalid if the C-RNTI T is included in the DCl 0 format and makes the transmission without applying the OCC to the DMRS when retransmitting message 3. Furthermore, the mobile station 1 also makes the transmission without applying the OCC to the DMRS when making the initial Z transmission of message 3 on the radio resource assigned in a response by the random T 10 access to the preamble to the random access transmitted by its pro. As a result, the base station 3 device may "" receive message 3 correctly determining that the OCC is not used
F r never in message 3. In the search space specific to the mobile station device "15 for the mobile station device 1 in mode 2, only the DCl 0 format or only the DCl OA format can be arranged as the uplink grant. In the common search space and / or the specific search space of the mobile station device, the DCl format different from the DCl formats illustrated in figure 5 can be arranged or the DCl format including the -, 20 RNTI different from the illustrated RNTI can be arranged in figure 5. Figure 6 is a diagram illustrating the relationship between cyclic displacement information and the cyclical displacement applied to the DMRS when the mobile station apparatus 1 of a modality of the present invention determines that the OCC is invalid. the mobile station device 1 25 determines that the OCC is invalid, it selects only one parameter to determine the cyclic displacement to be applied to the DMRS based on the information of the cyclical displacement. diagram illustrating the relationship between cyclic displacement information and cyclic displacement applied to DMRS when the mobile station apparatus 1 of a modality of the present invention determines that the OCC is valid. When the handset of the mobile station 1 of: ends that the OCC is valid, it selects the parameter to determine the cyclical displacement to be applied to the DMRS and the OCC to be applied to the 'DMRS based on the cyclic displacement information. . If the base station apparatus 3 changes the uplink transmission mode setting of the mobile station 1 apparatus and notifies the mobile station 1 apparatus to change the uplink transmission mode definition by the RRC signal, the mobile station apparatus 1 changes the transmission mode of the uplink after a certain time has elapsed since the reception of that RRC signal. After - - changing the uplink transmission mode, the station station, mobile 10 notifies the base station device 3 of a noti message. the change in the "uplink transmission mode" is
J a "completed. F Since the base station handset 3 cannot know when the mobile station handset 1 has changed the transmission mode of the uplink for a period from the notification of a change in the transmission mode of the link upward to the mobile station 1 device by the RRC signal until the mobile station | 1 device message is received notifying that the uplink transmission mode change is complete, the period during which the 20 uplink of the handset of the mobile station 1 cannot be maintained is generated, as described above, in the period during which the handset of the base station 3 cannot maintain the transmission mode of the uplink of the handset of the mobile station 1, the base station apparatus 3 25 includes the cyclic displacement information having a value corresponding to the OCC in [1.1] having the same DMRS when the OCC is invalidated in the DCl format and transmits the result to the station apparatus Mobile mode 1 in mode 2. In figure 7, the cyclic displacement information having values of "000", "001", "011" and "110" corresponds to the OCC in [1.1]. As a result, even if the uplink transmission mode of the mobile station 1 device is mode 2 and the OCC has been validated in the period during which the base station 3 device cannot
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46/58 q maintain the uplink transmission mode of the station apparatus
'- mobile tion 1, the mobile station device 1 uses the OCC in [1.1] only having the same DMRS when the OCC is invalidated and thus, regardless of the uplink transmission mode of the mobile station device 5 1 , the base station apparatus 3 may correctly receive the PUSCH í by performing the PUSCH reception processing, assuming that the mobile station apparatus 1 is not using the OCC.
If the base station 3 device does not know how to transmit
· 'Uplink mission of the mobile station 1 device when the a- # 10 mobile station device 1 makes initial access to the' 3 base station 'device, the base station 3 device cannot correctly receive the z ± , PUSCH transmitted by the handset of mobile station 1 and thus, a predefined uplink transmission mode needs to be determined.
At . of the present invention, the uplink transmission mode of the mobile station 1 apparatus when the mobile station apparatus 1 makes an initial access to the base station apparatus 3 is set to mode 1 whose transmission processing from DMRS is easy.
The operation of the apparatus of the present invention will be described below. Figure 8 is a flow chart illustrating an example of the operation of the mobile station 1 apparatus of a modality of the present invention. The mobile station 1 apparatus defines the transmission mode of the forward link notified from the base station apparatus. 3 (step S200). The apparatus of the mobile station 1 performs the blind decoding of the uplink concession 25 and detects the uplink concession (etaptjí S201). The mobile station device 1 determines whether the uplink transmission mode of your own device is mode 1 or mode 2 (step S202). If the handset at mobile station 1 determines that the uplink transmission mode of your own handset is mode 2, it
30 determines whether the OCC should be applied to DMRS based on the RNTI inc | uIDQ in the uplink concession (step S203). If the uplink concession includes the C-RNTI SPS assigned
4%
a> transferred to your own device and retransmission is ordered and if the con-
"assignment of the uplink includes the C-RNTI assigned to its own device, the device of the mobile station 1 determines the OCC and the cyclical displacement to be applied to the DMRS based on the information of the de-oc - 5 uplink concession (step S204) If the uplink concession includes the C-RNTI SPS assigned to your own device and retransmission is not ordered, or if the uplink concession includes the C-RNTI T corresponding to
} .random access message 3, the mobile station 1 device determines, and 10 only the cyclic offset to be applied to the DMRS based on the in-. + formation of cyclic displacement in the concession of the uplink (eta- - $ pa S205). b If the mobile device at mobile station 1 determines that the uplink transmission mode of your own device is mode 1 on
15 step S202, the routine proceeds to step S205. The mobile station apparatus 1 applies q cyclic displacement and OCC, when necessary, determined in step S204 or step S205 to DMRS, multiplexing DMRS and PUSCH in time transmits the result (step S206). Fig. 9 is a flow chart illustrating an example of the operation
20 of the base station apparatus 3 of an embodiment of the present invention.
The base station handset 3 notifies the mobile station handset 1 of the transmission mode defined for the mobile station handset 1 using the RRC or similar signal (step S300) - The base station handset 3 schedules the PUSCH and transmits
25 the granting of the uplink link indicating the radio resource for the PUSCH scheduled for the handset of the mobile station 1 (step S301). The base station apparatus 3 includes the cyclic displacement information corresponding only with the parameter to determine the cyclical displacement used for the DMRS when granting the uplink corresponding to the handset of the mobile station 1 defined for mode 1 The base station 3 | hQ trim includes cyclic displacement information corresponding only to the parameter to determine the cyclic displacement
G ¥ used for DMRS in granting the uplink by assigning the radio resource of the PUSCH used for retransmission of message 3 including o-RNTIT. The base station handset 3 includes the corresponding cyclic displacement information 5 with the parameter to determine the cyclic displacement used for DMRS and the OCC used for DMRS in granting the uplink including C-RNTI corresponding to the mobile station 1 apparatus set to mode 2. The base station apparatus% 3 includes the cyclic displacement information corresponding to the z 10 parameter to determine the cyclic displacement used for DMRS and T
R "OCC used for DMRS in granting the uplink including", "" C-RNTI SPS and ordering PUSCH retransmission corresponding to, "Appearance | from mobile station 1 set to (j mode 2. Station device base 3 includes the cyclic displacement information corresponding to somerite with the parameter to determine the cyclic displacement used for the DMRS in granting the uplink including the C-RNTI SPS and not ordering the PUSCÀ retransmission corresponding to the mobile station 1 set to Z mode The base station device 3 receives the PUSCH and DMRS according to the uplink concession transmitted to the mobile station 1 device in step S301, executes the PUSCH channel compensation using the DMRS and performs the PUSCH decoding processing (step S302) - As described above, in the mode of the present invention, in the radio communication system in which the base station apparatus 3 and the station apparatus the mobile 1 performs radio communication with each other, the base station device 3 transmits the uplink link concession (first control information) including the cyclic displacement information corresponding to the parameter to determine the displacement cyclic used for DMRS (reference signal) multiplexed in time with PUSCH (data channel) and transmitted by the mobile station 1 device and the uplink concession (second control information)
'm "49/58
Control) including the cyclic offset information described above corresponding to the parameter to determine the cyclic offset used for DMRS and the OCC (diffusion code) used for DMRS including the different RNTI (identifier) in it. 5 After , the mobile station device 1 determines by the RNTI included in the detained uplink concession if the cyclic displacement information included in the detected uplink concession corresponds with the parameter to determine the cyclical displacement used · for DMRS multiplexed in time with the PUSCH and OCC used for the, 10 DMRS or corresponds only with the parameter to determine the cyclical displacement used for the DMRS multiplexed in time with the PUSCH.
W - As a result, the base station 3 device can recognize, + know precisely whether the mobile station 1 device applies the OCC to the DMRS multiplexed in time with the PUSCH and thus the station 15 device base 3 can correctly perform PUSCH channel compensation using DMRS and decode PUSCH. (Second embodiment) A second embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 20 In the second embodiment of the present invention, the base station apparatus 3 provides the uplink link (first control information) including the cyclic displacement information corresponding only to the parameter to determine the cyclical displacement used for the DMRS in the common search space (first search space 25) and provides the uplink grant (second control information | e) including cyclic displacement information corresponding to the parameter to determine the cyclic displacement used for the DMRS and the OCC used for DMRS in the mobile station device's specific search space (second search space).
In the second embodiment of the present invention, the mobile station apparatus 1 discriminates if the cyclic displacement information included in the detected uplink concession corresponds only to the
~ parameter to determine the cyclic displacement used for DMRS or r "matches the parameter to determine the cyclic displacement used for DMRS and the OCC used for DMRS based on which between the common search space and the search space specific search of the apparatus of the 5th mobile station the uplink concession is detected Figure 10 is a diagram illustrating the relationship between the uplink concession and the OCC applied to the DMRS in the second mode of the present invention. The handset of mobile station 1 of the second · age includes mode 1 not using the OCC for DMRS multiplexed in E 10 time with the pusch and mode 2 using the OCC for DMRS multiplexed b in time with PUSCH as the uplink transmission mode.
R m te. The mobile station apparatus 1 performs blind decoding in DCl 0 format including C-RNTI, in DCI 0 format including C-RNTI SPS 15 and in DCl 0 format including C-RNTI T in the common search space and performs the blind decoding in DCl 0 format including q C-RNTI and in DCI 0 format including C-RNTI SPS in the specific search space of the mobile station apparatus in uplink transmission mode 1. In mode 1, whatever the search space in which the 20 DCl 0 format is detected, the OCC is invalid. The handset of mobile station 1 in uplink transmission mode 2 performs blind decoding in DCl 0 format including C-RNTI, in DCl 0 format including C-RNTI SPS and in DCl 0 format including C-RNTI T in the common search space and performs blind decoding in DCl 0 format and in DCl OA format including C-RNTI and DCl 0 format and DCI OA format including C-RNTI SPS in foot space - specific search of the mobile station apparatus. The mobile station device | 1 in mode 2 determines whether the OCC is valid or invalid based on which of the common search space 30 or the mobile station device specific search space, the DCl 0 format and the DCl OA format are detected. The device | ho of mobile station 1. in mode 2 it determines that the OCC is invalid if the DCl 0 format is detected in the common search space.
The handset of mobile station 1 in mode 2
'determines that the OCC is valid if the DCl 0 format and the DCl OA Index format the C-RNTI are detected in the specific search space of the mobile station device.
Since the mobile station 1 device in mode 2 5 monitors the DCl OA format only in the specific search space of the mobile station device, the DCI OA format has the valid OCC all the time.
powder.
The handset of mobile station 1 in mode 2 determines that the OCC
"..is invalid if the DCl 0 format and the DCl OA format including the C-RNTI SPS, and» 10 ordering the retransmission are detected in the specific search space of the mobile station device.
The handset of mobile station 1 in mode 2 "" detects that the OCC is invalid if the DCl 0 format and the DCl OA format include
_ including the C-RNTI SPS and not ordering the retransmission are detected in the specific search space of the mobile station device. 15 If at least a part of the common search space and the search space specific to the mobile station device are overlapped, there is a problem that the mobile station 1 device cannot determine if the DCI 0 format detected in the space superimposed is placed in the common search space and the OCC is invalid or it is placed in the
20 mobile device device specific search and the OCC is valid.
The overlapping of the common research space and the specific research space of the mobile station apparatus means that the candidates from the PDCCH constituting the common research space and the candidates from the PDCCH constituting the specific research space of the
25 mobile stations are all composed of the same elements of the control channel.
In Figure 4, the PDCCH candidate composed of the eighth to fifteenth elements of the control channel is a space where the common research space and the specific research space of the mobile station device are overlapped. 30 Then, in the present invention, if the DCl 0 format is willing to be organized in both the common research space and the specific research space of the mobile station apparatus must be arranged in the
space where the common research space and the specific research space "of the mobile station apparatus are superimposed, in which of the research spaces the DCl 0 format is arranged is determined in advance.
If the mobile station device 1 detects the DCl 0 format and is willing to be organized in both the common search space and the mobile station device specific search space in the space where the common search space and the search space are located. specific search of the mobile station device are overlaid, the mobile station device 1 determines that this
"is the DCl format to be arranged in the search space determined before 10 in advance-. If the DCl 0 format is detected in the space where the% —d common search space and the specific search space of the mobile station device are overlapping, for example, it is determined in advance that the DCl 0 format must be arranged in the common search space and the mobile station 1 apparatus determines that the OCC is invalid.
As a result, in the period since the transmission of the RRC signal instructing the handset of the mobile station 1 to change the transmission mode of the forward link for receiving the message from the handset of the mobile station 1 rioting that changing the transmission mode of the link would
20 has been completed when the base station apparatus 3 cannot maintain the uplink transmission mode of the mobile station 1 apparatus, the mobile station apparatus 1 determines that the OCC is invalid | id all the time regardless of the uplink transmission mode using the DCl 0 format provided in the common search space and thus, the
25 relay of the base station 3 can correctly recognize whether the handset of the mobile station 1 applies or contains the OCC in the DMRS multiplexed in time with the PUSCH.
Since the base station handset 3 can perform radio communication with the mobile station handset 1 using the
30 assignment of the uplink including the C-RNTI in the common research space in the period above, the OCC of the uplink concession including the C-RNTI SPS in the common research space can be validated. '
,.
Furthermore, the present invention can use the following method. That is, the radio communication system of the present invention is a radio communication system in which the base station apparatus and the mobile station apparatus carry out radio communication with each other, whereas the base station apparatus includes the cyclic displacement information corresponding to the parameter to determine the cyclic displacement used for the reference signal transmitted from the mobile station apparatus in the first control information, includes the displacement information
"cyclic ment corresponding to the parameter to determine the displacement
b '10 cyclic ment used for the reference signal and the diffusion code used ^ for the reference signal in the second control information and transmits a. k first control information or second control information for the
. mobile station apparatus, while the mobile station apparatus applies only the cyclic shift to the reference signal in case the first control information is detected, it applies the cyclic shift and the diffusion code to the reference signal. reference signal in case the second control information is detected.
Furthermore, in the radio communication system of the present invention, the base station apparatus includes the first RNTI in the first
20 coritrole information and includes the second RNTI in the second control information, while the mobile station device discriminates whether the detected control information is the first control information or the second control information based on whether the control information detected includes the first RNTI or the second RNTI. 25 Additionally, in the radio communication system of the present invention, the base station apparatus defines the first mode in which the mobile station apparatus must monitor only the first Olj control information, the second mode in which the apparatus the mobile station must monitor at least the second control information and transmit
30 only the cyclic displacement information corresponding to the broadcast signal in [1.1] included in the second control information for a period from the notification of the definition to the handset of the mobile station to the reception of the message notifying that the definition the mobile station apparatus is complete. Furthermore, in the radio communication system of the present invention, the base station apparatus has the first control information in the first search space and the second control information in the second search space, while the mobile station device discriminates between the first control information and the second control information is the control information detected based on "which, between the first search space and the second search space , 2 10 the control information is detected. we f Furthermore, in the present radio communication system: 4 invention, in the space where the first research space and the second are. The search station is overlaid, the base station device only has the first control information or the second control information, whereas if the control information is detected in the overlap space, the mobile station device determines that the first control information or the second control information is detected. Furthermore, the base station apparatus of the present invention is a base station apparatus which performs radio communication with the mobile station apparatus, wherein the base station apparatus includes cyclic displacement information. corresponding to the 'parameter to determine the cyclic shift used for the re! "sign i.
transfer transmitted by the handset of the mobile station in the first control information, includes the parameter to determine the cyclical displacement used 25 "for the reference signal and the displacement information" cyclical current corresponding to the diffusion code used for the reference signal in the second control information and transmits the first control information or the second control information to the handset of the mobile station. In addition, the mobile station apparatus of the present invention is a mobile station apparatus which performs radio communication with the base station apparatus, on which. in the case of the first control training including information on the corresponding cyclic |
b> W :!
weighing with the parameter to determine the cyclic displacement used
'for the reference signal transmitted by its own device to be detected, the mobile station device applies only the cyclic displacement of the reference signal, while in the case of the second control information including the parameter to determine the cyclic displacement used for the reference signal and the cyclic displacement information corresponding to the diffusion code used for the reference signal to be detected, the cyclic displacement and the diffusion code are applied to the reference signal
"and the reference signal is transmitted. & 10 Furthermore, the radio communication method of the present invention is a radio communication method used on the station apparatus. Base station that performs radio communication with the mobile station apparatus and includes the steps of including cyclical displacement information - corresponding to the parameter to determine cyclical displacement
15 used for the reference signal transmitted by the mobile station apparatus in the first control information, include the parameter to determine the cyclic displacement used for the reference signal and the cyclic displacement information corresponding to the diffusion code used for the signal reference in the second control information and transmit the first
20 control information Olj the second control information for the mobile station device.
In addition, the radio communication method of the present invention is a radio communication method used on the mobile station apparatus that performs radio communication with the station apparatus
25 baseline and includes the steps to apply, if the first control information including cyclical displacement information corresponding to the parameter to determine the cyclic displacement used for the reference signal transmitted by your own device is detected, only the cyclic shift in the reference signal, apply, if the second
30 control including the parameter to determine the cyclical displacement used in the reference signal and the cyclic displacement information corresponding to the diffusion code used for the reference signal is detected
- da, the cyclic shift and the diffusion code in the reference signal and "'transmit the reference signal. In addition, the integrated circuit of the present invention is an integrated circuit used in the base station apparatus that performs the communication. - 5 radio communication with the mobile station device and includes the functions of including the cyclic displacement information corresponding to the parameter to determine the cyclic displacement used for the reference signal transmitted by the mobile station device in the first control information - trolley, include the parameter to determine the cyclic displacement used for, 10 the reference signal and the cyclic displacement information corresponding to the diffusion code used for the reference signal in the second
E Wf control information and transmit the first control information or the second information to the mobile station device. In addition, the integrated circuit of the present invention is an integrated circuit used in the handset of the mobile station that performs radio communication with the handset of the base station and includes the functions to apply, if the first control information including des- information. cyclic shift corresponding to the parameter to determine the cyclic shift used for the reference signal transmitted by your own device is detected, only the cyclic shift to the reference signal, apply, if the second control information including the parameter to determine the cyclic shift used in the reference signal and the cyclic shift information corresponding to the diffusion code used for the reference signal is detected, the cyclic displacement and the diffusion code to the reference signal and transmit the reference signal. The program operated on the base station apparatus 3 and the mobile station apparatus 1 related to the present invention could be a program (a program to have a computer function) to control the CPU (processing unit) central) and so on, so that the functions of the above described modality related to the present invention are realized. The information manipulated by these devices is temporarily stored in RAM (random access memory).
k— 57/58 e.
during processing and then stored in various ROMs, "as a ROM Fiash (read memory) and HDDs (hard disk drive) and read, modified / written by the CPU, when necessary. A part of apaFe | the mobile station 1 and the base station apparatus 5 in the mode described above can be performed by a computer, in which case the program to perform the control function is recorded on a computer-readable recording medium and the program recorded on the recording medium can be read in and executed by the "computer system so as to be carried out,% 10 The" computer system "here means a computer system. built into the mobile station 1 device or the base station 3 device and is considered to include OS and hardware such as peripheral equipment. In addition, the "computer-readable recording medium" refers to a portable medium, such as a floppy disk, a magnetic 15 optical disk, a ROM, a CD-ROM and so on and a device storage device, such as a hard drive, built into the computer system. Furthermore, the "computer-readable recording medium" can include those maintaining the program dynamically for a short time 20 such as a line of communication when the program is transmitted over a communication line such as a network including the internet and a phone line and so on and these are running the program for a given time such as a volatile memory from another computer system that becomes a server and a client in that case- Besides, the 25 programs described above may be such as to perform part of the functions described above or may be able to be performed by combining with a program already recorded on the computer system. In addition, a part of or the assembly of the mobile station apparatus 1 and the base station apparatus 3 in the above-described embodiment 30 may be realized as an LS1 which is typically an integrated circuit or may be realized as an assembly integrated circuits. Each functional block of the mobile station device 1 and the mobile station device
The base 3 can be individually transformed into an integrated circuit or 'a part of or the set of them can be integrated and transformed into an integrated circuit. Furthermore, the method of transforming them into an integrated circuit is not limited to LSl, but can be performed by a dedicated circuit or a general purpose processor. In addition, if an integrated circuit manufacturing technology emerges that replaces LSl due to progress in semiconductor technology, the integrated circuit for this technology can also be used. . The modality of this invention has been described in detail with reference to the accompanying drawings, but the specific configuration is not limited to those described above, but there may be several design changes and as- "y 'yes within the range not departing from the goal of this invention.
Reference list. 1 (IA, 1B, lC) mobile station device 15 3 base station device 101 upper layer processing unit 103 control unit 105 receiving unit 107 transmission unit 20 301 upper layer processing unit 303 control unit 305 reception unit t 307 transmission unit 1011 radio resource control unit 25 "1013 determination unit 3011 radio resource control unit 3013 downlink control information generation unit.

权利要求:
Claims (12)
[1]
1. Terminal device that communicates with a base station device (3) characterized by comprising: a generation unit configured to generate a demodulation reference signal based on a reference reference signal sequence. demodulation provided by multiplying a reference signal sequence by a given sequence, the demodulation reference signal being associated with a transmission of a shared uplink physical channel, and a receiving unit (105, 305) configured for receive downlink control information, where for a downlink control information format 0: the given sequence is [1 1] in a case where a parameter associated with an orthogonal coverage code for the demodulation reference is not defined, or in the case where a temporary C-RNTI was used to transmit downlink control information; and the given sequence is one between [1 1] and [1 -1], and is based on the cyclic displacement information in the downlink control information, in a case where the parameter associated with the orthogonal coverage code for the demodulation reference signal is defined and the temporary C-RNTI was not used to transmit the downlink control information.
[2]
Apparatus according to claim 1, characterized in that the terminal apparatus further comprises a transmission unit (107, 307) configured to transmit the demodulation reference signal together with the shared uplink physical channel programmed by the downlink control information.
[3]
3. Apparatus according to claim 1, characterized in that the downlink control information is transmitted using the downlink control information format 0 and is used for programming the physical uplink shared channel transmitted in a single antenna port.
[4]
4. Base station device (3) that communicates with a terminal device characterized by comprising: a transmission unit (107, 307) configured to transmit downlink control information, and a reception unit ( 105, 305), configured to receive a demodulation reference signal associated with a transmission of a physical uplink shared channel, the demodulation reference signal being generated based on a demodulation reference signal sequence given by multiplication of a reference signal sequence by a given sequence, where: for a downlink control information format 0: the given sequence is [1 1] in a case where a parameter associated with the orthogonal coverage code for the demodulation reference signal is not defined, or in a case where a temporary C-RNTI was used to transmit the downlink control information; and the given sequence is one between [1 1] and [1 -1], and is based on cyclic displacement information in the downlink control information, in a case where the parameter associated with the orthogonal coverage code for the demodulation reference signal it is defined and the temporary C-RNTI was not used to transmit the downlink control information.
[5]
Apparatus according to claim 4, characterized in that the terminal apparatus comprises a transmission unit (107, 307) configured to transmit the demodulation reference signal in conjunction with the shared physical uplink channel programmed by the information downlink control.
[6]
6. Apparatus according to claim 4, characterized in that the downlink control information is transmitted using the downlink control information format 0 and is used to program the shared uplink physical channel transmitted in a single antenna port.
[7]
7. Terminal device that communicates with a base station device (3) characterized by comprising: 5 a receiving unit (105, 305) configured to receive radio resource control information that indicates whether an orthogonal coverage code is used for a demodulation reference signal used to demodulate an uplink shared physical channel or not, and downlink control information used for programming the uplink shared physical channel transmitted on a single antenna port, a unit radio resource control (103, 303) configured to define whether the orthogonal coverage code is used for the demodulation reference signal based on received radio resource control information or not, a unit of generation configured to generate the demodulation reference signal based on a demodulation reference signal sequence given by multiplying a sin sequence In addition to a reference sequence, a transmission unit (107, 307) configured to transmit the demodulation reference signal together with the shared uplink physical channel programmed by the downlink control information , where: the given sequence associated with the generation of the demodulation reference signal transmitted in conjunction with the shared uplink physical channel programmed by the downlink control information is [1 1] in a case where the unit radio resource control (103, 303) defines that the orthogonal coverage code is not used for the demodulation reference signal based on the radio resource control information received, the particular sequence associated with the generation of the radio signal. demodulation reference transmitted in conjunction with the physical channel
uplink sharing programmed by the downlink control information is [1 1] in a case where the temporary C-RNTI was used to transmit the downlink control information, the particular sequence associated with the generation of the 5 signal demodulation reference transmitted in conjunction with the shared uplink physical channel programmed by the downlink control information is one between [1 1] and [1 -1] and is specified based on the cyclic displacement information included in the information downlink control, in a case where the radio resource control unit (103, 303) defines that the orthogonal coverage code is used for the demodulation reference signal based on the resource control information radio received and the temporary C-RNTI was not used to transmit downlink control information.
[8]
8. Apparatus according to claim 7, characterized in that the determined sequence associated with the generation of the demodulation reference signal transmitted together with the shared physical uplink channel programmed by the uplink control information is [1 1] until the radio resource control unit (103, 303) defines whether the orthogonal coverage code is used for the demodulation reference signal based on received radio resource control information or not.
[9]
9. Base station device (3) that communicates with a terminal device characterized by comprising: a control unit (103, 303) of radio resources configured to maintain whether the terminal device uses an orthogonal coverage code for a demodulation reference signal used to demodulate an uplink shared physical channel or not, a transmission unit (107, 307) configured to transmit radio resource control information that indicates whether the coverage code orthogonal is used for the demodulation reference signal or not and the downlink control information used to program the shared uplink physical channel transmitted on a single antenna port, a receiving unit (105, 305) configured for receive the demodulation reference signal together with the uplink shared physical channel programmed by the downlink and demodula control information r upstream shared physical channel using the demodulation reference signal, the demodulation reference signal being generated based on a demodulation reference signal sequence given by multiplying a reference signal sequence by a given sequence , the given sequence associated with the generation of the demodulation reference signal received in conjunction with the shared uplink physical channel programmed by the downlink control information is [1 1] in a case where the terminal device does not use - uses the orthogonal coverage code for the demodulation reference signal, the given sequence associated with the generation of the demodulation reference signal received together with the physical uplink shared channel programmed by the link control information descendant is [1 1] in a case where the temporary C-RNTI was used to transmit link control information downstream, the particular sequence associated with the generation of the demodulation reference signal received in conjunction with the shared uplink physical channel programmed by the downlink control information is selected between [1 1] and [1 -1] with based on cyclic displacement information included in downlink control information in a case where the terminal apparatus uses the orthogonal coverage code for the demodulation reference signal and the temporary C-RNTI was not used to transmit downlink control information.
[10]
10. Apparatus according to claim 9, characterized in that the determined sequence associated with the generation of the demodulation reference signal received together with the shared physical channel of input
upward lace programmed by the downlink control information is [1 1] until the radio resource control information is transmitted.
[11]
11. Radio communication method used in a mobile station device (1, 1A, 1C) characterized by understanding the steps of: receiving radio resource control information that indicates whether an orthogonal coverage code is used to a demodulation reference signal used to demodulate a physical uplink shared channel or not and downlink control information used to program the physical uplink shared channel transmitted on a single antenna port, define if the orthogonal coverage code is used for the demodulation reference signal based on received radio resource control information or not, generate the demodulation reference signal based on the demodulation reference signal sequence given by multiplying a reference signal sequence by a given sequence, transmit the demodulation reference signal together with the physical channel with uplink shared programmed by the downlink control information, where: the given sequence associated with the generation of the demodulation reference signal transmitted together with the shared uplink physical channel programmed by the downlink control information is [1 1] in a case where configuring the orthogonal coverage code is not used for the demodulation reference signal based on the received radio control information, the given sequence associated with the generation of the reference signal of demodulation transmitted in conjunction with the shared physical uplink channel programmed by the downlink control information is [1 1] in a case where the temporary C-RNTI was used to transmit the downlink control information,
the given sequence associated with the generation of the demodulation reference signal transmitted in conjunction with the physical uplink shared channel programmed by the downlink control information is one between [1 1] and [1 -1] and is specified based on the cyclic displacement information included in the downlink control information, in a case where defining the orthogonal coverage code is used for the demodulation reference signal based on the resource control information of radio received and the temporary C-RNTI was not used to transmit downlink control information.
[12]
12. Radio communication method used in a base station device (3) characterized by understanding the steps of: transmitting radio resource control information that indicates whether the orthogonal coverage code is used for the reference signal of demodulation or not and downlink control information used for programming the uplink shared physical channel transmitted on a single antenna port, receive the demodulation reference signal together with the uplink shared physical channel programmed by downlink control information and demodulate the physical uplink shared channel using the demodulation reference signal, the demodulation reference signal being generated based on the given demodulation reference signal sequence by multiplying a reference signal sequence by a given sequence, the given sequence associated with the generation of the demodulation reference signal received in conjunction with the physical uplink shared channel programmed by the uplink control information is [1 1] in a case where the terminal device does not use the orthogonal coverage code for the signal demodulation reference signal, the particular sequence associated with the generation of the demodulation reference signal received in conjunction with the shared uplink physical channel programmed by the downlink control information is [1 1] in a case where the Temporary C-RNTI was used to transmit the downlink control information, the particular sequence associated with the generation of the demodulation reference signal received together with the uplink shared physical channel programmed by the link control information. descending is selected between [1 1] and [1 -1] based on cyclic displacement information included in the energy control information downward lace in a case where the terminal device uses the orthogonal coverage code for the demodulation reference signal and the temporary C-RNTI was not used to transmit the downlink control information.
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V "¶UJ
E # rm t "j t i - f" l (j}
ÇJ u '} à) CI) m' O g · tH kej n - - F1 - Fl— "g« J
Ê 'ã5 4 m - e CL - - àj CU O ± "; t Êl - - - l1 0 *
P ! IG
O (J (j) aj (XÍ))))))) Specific search space I i ® space of the mobile search device with cornum "> Number of channel elements dt" contro | and constituting PDCCH candidate
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法律状态:
2020-09-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-09-08| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04W 72/04 , H04J 1/00 , H04J 11/00 , H04W 72/12 Ipc: H04L 5/00 (2006.01), H04L 25/02 (2006.01), H04J 13 |

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2021-11-23| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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2021-12-07| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|

优先权:

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申请号 | 申请日 | 专利标题

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JP2010121258A|JP4928621B2|2010-05-27|2010-05-27|Wireless communication system, base station apparatus, mobile station apparatus, wireless communication method, and integrated circuit|

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JP2010121258|2010-05-27|

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PCT/JP2011/061679|WO2011148876A1|2010-05-27|2011-05-20|Mobile station apparatus, base station apparatus, wireless communication system, wireless communication method and integrated circuit|

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