METHOD FOR TRANSMISSION OF UP LINK CONTROL SIGNALING, AND TRANSMISSION APPLIANCE FOR UP LINK CONTROL

专利摘要:
method for transmitting uplink control signaling, method for carrying a demodulation reference signal during transmission of uplink control signaling, uplink transmitting apparatus for a response message, and apparatus for carrying a reference signal demodulation during transmission of the uplink control signaling. the disclosure provides a method for transmitting uplink control signaling which includes: respectively effecting on uplink control signaling channel coding, scrambling, modulation, time domain spreading and precoding transform; or respectively performing, in the uplink control signaling, channel coding, scrambling, modulation, precoding transform and time domain spreading; and mapping the uplink control signaling to an orthogonal frequency division multiplexing (ofdm) symbol used to support the uplink control signaling; and transmitting the uplink control signaling that is carried by the ofdm symbol. the disclosure further provides a method of transporting a demodulation reference signal during transmission of the uplink control signaling, which includes: transporting an uplink demodulation reference signal in k ofdm symbols in a subframe. the invention also discloses an apparatus for respectively implementing the above-mentioned methods. the technical solutions of the revelation effectively solve the problem of uplink control signaling being transmitted using a discrete fourier transform-scattered-ofdm (dft-s-ofdm) structure.
公开号:BR112012027161B1
申请号:R112012027161-0
申请日:2010-11-24
公开日:2021-06-01
发明作者:Weiwei YANG；Chunli Liang；Bo Dai；Bin Yu；Peng Zhu
申请人:Zte Corporation；
IPC主号:

专利说明:

TECHNICAL FIELD
[01] The disclosure concerns a technology for transmitting uplink control signaling, in particular a method and apparatus for transmitting uplink control signaling in a carrier aggregation system, and a method and apparatus for carrying a uplink demodulation reference signal during uplink control signaling transmission. BACKGROUND
[02] In a Hybrid Automatic Repeat Request (HARQ) mode, codes transmitted by a transmitting end not only detect errors, but also have a certain error correction capability. After receiving the codes, a decoder at a receiving end first detects the errors; when errors are within the error-correcting capability of codes, errors are automatically corrected; when there are too many errors, which go beyond the error-correcting capability of the codes, and the errors can still be detected, then the receiving end transmits a decision signal to the sending end through a feedback channel to ask the sending end to relay the information. In an Orthogonal Frequency Division Multiplexing (OFDM) system, Acknowledged/Unacknowledged (ACK/NACK) signaling is used to indicate whether the transmission is right or wrong, in order to determine whether the information needs to be retransmitted or do not.
[03] The Long Term Evolution (LTE) system is an important project of the third generation partnership organization; Fig. 1 shows a schematic diagram illustrating a basic frame structure of the LTE system in the relevant technologies; as shown in Fig.1, the basic frame structure of the LTE system is illustrated, including five hierarchies, namely, radio frame, half-frame, subframe, slot and symbol, where a radio frame has a length of 10ms and consists of two frame halves; each half frame is 5ms long and consists of five subframes; each subframe is 1ms long and consists of two slots; each slot is 0.5ms long.
[04] When the LTE system adopts a normal cyclic prefix, a slot includes seven uplink/downlink symbols each having a length of 66.7μs, where the cyclic prefix of the first symbol has a length of 5.21μs, and the cyclic prefix of the other six symbols has a length of 4.69μs.
[05] When the LTE system adopts an extended cyclic prefix, a slot includes six uplink/downlink symbols each with a length of 66.7μs, where the cyclic prefix of each symbol has a length of 16.67μs.
[06] In an LTE system HARQ downlink, an Acknowledged/Unacknowledged (ACK/NACK) message is transmitted on a Physical Downlink Shared Channel (PDSCH); when a User Equipment (UE) has no Physical Uplink Shared Channel (PUSCH), the ACK/NACK message is transmitted on a Physical Downlink Control Channel (PUCCH); the LTE system defines various PUCCH formats, including PUCCH format 1/1a/1b and format 2/2a/2b, wherein format 1 is used to transmit a Request Scheduling (SR) signal from the UE; format 1a and format 1b are respectively used to send a 1-bit ACK/NACK feedback message and a 2-bit ACK/NACK message; format 2 is used to transmit Channel State Information (CSI), where CSI includes Channel Quality Information (CQI), a Precoder Matrix Indicator (PMI) and a Hierarchy Indication (RI); format 2a is used to transmit the CSI and a 1-bit ACK/NACK message; 2b format is used to transmit CSI information and a 2-bit ACK/NACK message; and the 2a/2b format is only applied to the scenario with the cyclic prefix being a normal cyclic prefix.
[07] In the LTE system, in a Frequency Division Duplex (FDD) system, since there is a one-to-one correspondence between uplink subframes and downlink subframes, the UE needs to give feedback of a 1-bit ACK/NACK message when the PDSCH contains only one transmission block, and the UE needs to give feedback of a 2-bit ACK/NACK message when the PDSCH contains two transmission blocks; in a Time Division Duplex (TDD) system, since there is no one-to-one correspondence between uplink subframes and downlink subframes, the ACK/NACK message corresponding to several downlink subframes needs to be transmitted on the PUCCH channel of an uplink subframe, wherein a set of downlink subframes corresponding to uplink frames form an integrated window. The methods for transmitting the ACK/NACK message include an integration method and a "channel selection multiplexing" method; wherein the basic principle of the averaging method is to perform a logical "and" operation on the ACK/NACK message of a transmission block corresponding to each downlink subframe and needing to be given feedback to the uplink subframe; when a downlink subframe has two transmission blocks, the UE needs to give feedback of a 2-bit ACK/NACK message; when each subframe has only one transmission block, the UE has to give feedback of a 1-bit ACK/NACK message; and the basic principle of the "channel selective multiplexing" method is to indicate different feedback states of the downlink subframe that need to be transmitted as feedback to the uplink subframe using different PUCCH channels and different modulation symbols on the PUCCH channel; when the downlink subframe has several transmission blocks, the ACK/NACK given as feedback by the various transmission blocks of the downlink subframe is first subjected to a logical "and" operation (also called spatial integration), and then it is submitted to a channel selection, and finally it is transmitted using the PUCCH 1b format.
[08] In LTE system there are two types of uplink reference signals; one type is an uplink Demodulation Reference Signal (DM RS), and the other type is an uplink Audio Reference Signal (SRS); wherein the DM RS is formed of a sequence in the frequency domain and the sequence is a Cyclic Change (CS) of a reference signal sequence, different PUCCH formats corresponding to different DM RS structures; the SRS is transmitted periodically, when an ACK/NACK message and an SRS are transmitted, the ACK/NACK message being transmitted using a truncation structure, namely the last symbol of the second slot of each subframe is not used to carry the ACK/message NACK; when a CSI and an SRS are transmitted, only the CSI is transmitted.
[09] In order to meet the International Telecommunication Union-Advanced (ITU-Advanced) requirement, an Advanced Long-Term Evolution (LTE-A) system, as the LTE system evolution standard, needs to support greater breadth system bandwidth (up to 100MHz) and must be backward compatible with existing LTE system standards. On the basis of the existing LTE system, the bandwidth of the LTE system can be merged to obtain greater bandwidth, which is called Carrier Aggregation (CA) technology. This CA technology can improve the spectrum utilization rate of an IMT-Advanced system and alleviate the lack of spectrum resources, thereby optimizing spectrum resource utilization.
[10] When LTE-A adopts CA technology and the UE is configured with four downlink component carriers, the UE has to give feedback of the ACK/NACK messages of those four downlink component carriers. In the Multiple Input and Multiple Output (MIMO) condition, the UE has to give feedback of the ACK/NACK message for each code; as such, when the UE is configured with four downlink component carriers, the UE needs to give feedback of eight ACK/NACK messages. At this moment, the conclusion about the ACK/NACK message is that: for an LTE-A system terminal, when 4 bits are supported at most for an ACK/NACK message, the "channel selection multiplexing" method is adopted; when more than 4 bits are supported for an ACK/NACK feedback message a Fourier-Scattered-Scattered-OFDM (DFT-s-OFDM) structure method is adopted; Of course, other uplink control signaling can also be transmitted using the DFT-s-OFDM structure. However, at this time, an LTE-A system does not provide a specific method for transmitting the uplink control signaling by adopting the DFT-s-OFDM structure and does not indicate the location and number of uplink reference signals in that structure. .
[11] SUMMARY
[12] In view of the above problem, the main purpose of the disclosure is to provide a method and apparatus for transmitting uplink control signaling, and a method and apparatus for supporting an uplink demodulation reference signal during transmission of uplink control signaling, to effectively solve the problem that the uplink control signaling is transmitted using a DFT-s-OFDM structure.
[13] In order to achieve the above objective, the technical solutions of the invention are carried out as follows.
[14] The disclosure provides a method for transmitting uplink control signaling that includes:
[15] respectively perform uplink control signaling, channel coding, scrambling, modulation, time domain spreading and precoding transform; or respectively performing in uplink control signaling, channel coding, scrambling, modulation, precoding transform and time domain spreading; and
[16] mapping the uplink control signaling to an Orthogonal Frequency Division Multiplexing (OFDM) symbol used to support the uplink control signaling; and
[17] transmit the uplink control signaling that is supported by the OFDM symbol.
[18] Preferably, performing channel coding in uplink control signaling may include:
[19] when an uplink control signaling bit number is greater than 11 bits, perform encoding using a tail biting convolutional code with length restriction of 7 and code rate of 1/3; and
[20] perform encoding using a linear block code when the number of bits does not exceed 11.
[21] Wherein, a length of the encoded uplink control signaling may be related to whether two slots in a subframe carry the same information, specifically when two slots carry the same information, the length of the encoded uplink control signaling is 12xQm; and when two slots of a subframe carry different information, the length of the encoded uplink control signaling is 24xQm, where Qm is a corresponding modulation request.
[22] Preferably, performing scrambling in uplink control signaling may include:
[23] adding an scrambling sequence to an encoded uplink control signaling sequence and performing a mode 2 operation to obtain an scrambled sequence; wherein the scrambling sequence is formed by a pseudo-random sequence.
[24] Preferably, performing modulation in uplink control signaling may include:
[25] modulate an encrypted uplink control signaling sequence by adopting a Quadrature Phase Shift (QPSK) modulation mode.
[26] Preferably, performing time domain spreading in uplink control signaling may include:
[27] spreading a processed uplink control signaling sequence to an OFDM symbol used to support uplink control signaling using an orthogonal sequence;
[28] where the orthogonal sequence can be a Discrete Fourier Transform (DFT) sequence, or a Walsh sequence, or a Zero Const Amplitude Autocorrelation (CAZAC) sequence, or a spreading sequence of the DFT sequence, or a sequence a Walsh sequence spreading, or a CAZAC sequence spreading sequence; and
[29] where an orthogonal sequence length can be equal to the number of OFDM symbols used to support uplink control signaling in a slot.
[30] Preferably, performing precoding transformation in uplink control signaling can include:
[31] perform DFT operation on a sequence of uplink control signaling in the OFDM symbol used to support uplink control signaling.
[32] Preferably, the OFDM symbol used to support the uplink control signaling can be OFDM symbols in a subframe other than an OFDM symbol occupied by an uplink reference signal.
[33] Preferably, the method may also include:
[34] when the uplink control signaling and an uplink Audio Reference Signal (SRS) are carried in a subframe, neither the uplink control signaling nor an uplink demodulation reference signal are carried in a last OFDM symbol in a second subframe slot.
[35] Preferably, the uplink control signaling may be an Acknowledged/Unacknowledged (ACK/NACK) or Channel State Information (CSI) message for an uplink feedback.
[36] The disclosure further provides a method for supporting a demodulation reference signal during transmission of uplink control signaling, which includes:
[37] support the demodulation reference signal in k Orthogonal Frequency Division Multiplexing (OFDM) symbols in each slot.
[38] Preferably, the method may also include:
[39] in a subframe with a normal cyclic prefix, k=2 or k=3; and
[40] in a subframe with an extended cyclic prefix, k=2 or k=1.
[41] Preferably, supporting the demodulation reference signal in k OFDM symbols in each slot can include:
[42] in a subframe with a normal cyclic prefix, carry three demodulation reference signals respectively in the following OFDM symbols in each slot:
[43] a second OFDM symbol, a third OFDM symbol, and a sixth OFDM symbol; or
[44] a zero OFDM symbol, a third OFDM symbol and a sixth OFDM symbol; or
[45] a first OFDM symbol, a third OFDM symbol and a fifth OFDM symbol;
[46] in the subframe with the normal cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot:
[47] a zero OFDM symbol and a fifth OFDM symbol; or
[48] a zero FDM symbol and a sixth OFDM symbol; or
[49] a first OFDM symbol and a fifth OFDM symbol; or
[50] a second OFDM symbol and a third OFDM symbol; or
[51] a second OFDM symbol and a fifth OFDM symbol;
[52] in a subframe with an extended cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot:
[53] a zero OFDM symbol and a fifth OFDM symbol; or
[54] a zero OFDM symbol and a fourth OFDM symbol; or
[55] a second OFDM symbol and a third OFDM symbol; or
[56] a first OFDM symbol and a fourth OFDM symbol; or
[57] a second OFDM symbol and a fifth OFDM symbol; and
[58] in the subframe with the extended cyclic prefix, carrying a demodulation reference signal in a second OFDM symbol or a third OFDM symbol in each slot;
[59] where the OFDM symbols in each slot are numbered starting from 0.
[60] Preferably, the method may also include:
[61] when two or more OFDM symbols are occupied by the uplink demodulation reference signal, the demodulation reference signal carried in each OFDM symbol is of the same sequence or of a sequence subjected to time domain spreading, in that the sequence is a Computer Generated Zero Const Amplitude Correlation (CG-CAZAC).
[62] The disclosure provides an uplink transmission apparatus for a response message which includes a pre-processing unit, a mapping unit and a transmission unit, wherein
[63] the preprocessing unit is configured to preprocess uplink control signaling;
[64] the mapping unit is configured to map the pre-processed uplink control signaling to an Orthogonal Frequency Division Multiplexing (OFDM) symbol used to support the uplink control signaling; and
[65] the transmission unit is configured to transmit the uplink control signaling.
[66] Preferably, the pre-processing unit may further include a channel encoding sub-unit, a scrambling sub-unit, a modulation sub-unit, a time domain spreading sub-unit, and a pre-coding transforming sub-unit, on what
[67] the channel coding sub-unit is configured to perform channel coding on the uplink control signaling;
[68] the encryption subunit is configured to encrypt the uplink control signaling subjected to channel coding;
[69] the modulation sub-unit is configured to modulate encrypted uplink control signaling;
[70] the time domain spreading sub-unit is configured to perform time domain spreading in modulated uplink control signaling; and
[71] the precoding transform subunit is configured to perform precoding transform on uplink control signaling subjected to time domain spreading.
[72] Preferably, the precoding transform subunit may be further configured to perform precoding transform on modulated uplink control signaling; and
[73] the time domain spreading subunit can be further configured to perform time domain spreading in the uplink control signaling subjected to precoding transformation.
[74] Preferably, the channel encoding subunit can further be configured to:
[75] perform encoding using a tail biting convolutional code with length restriction of 7 and code rate of 1/3, when a bit number of uplink control signaling is greater than 11 bits; and
[76] perform encoding using a linear block code when the number of bits does not exceed 11;
[77] in which, an encoded uplink control signaling length can be related to whether two slots in a subframe carry the same information, specifically when two slots in a subframe carry the same information, the length of the uplink control signaling encoded uplink is 12xQm; and
[78] when two slots in a subframe carry different information, the length of the encoded uplink control signaling is 24xQm, where Qm is a corresponding modulation request.
[79] Preferably, the scrambling subunit can be further configured to add an scrambling sequence to an encoded uplink control signaling sequence, and then perform a mode 2 operation to obtain an scrambled sequence, where the sequence encryption is formed by a pseudorandom sequence.
[80] Preferably, the modulation subunit may further be configured to modulate the scrambled uplink control signaling by adopting a Quadrature Phase Shift (QPSK) modulation mode.
[81] Preferably, the time domain spreading subunit may be further configured to spread a processed uplink control signaling sequence to an OFDM symbol used to support uplink control signaling using an orthogonal sequence;
[82] where the orthogonal sequence can be a DFT sequence, or a Walsh sequence, or a CAZAC sequence, or a DFT sequence spreading sequence, or a Walsh sequence spreading sequence, or a CAZAC sequence spreading sequence ; and
[83] where an orthogonal sequence length can be equal to the number of OFDM symbols used to support uplink control signaling in a slot.
[84] Preferably, the precoding transform subunit can be further configured to perform a DFT operation on an uplink control signaling sequence in the OFDM symbol used to support the uplink control signaling.
[85] Preferably, the OFDM symbol used to support the uplink control signaling can be OFDM symbols in a subframe other than an OFDM symbol occupied by an uplink reference signal.
[86] Preferably, the mapping unit can still be configured to:
[87] when the uplink control signaling and an uplink Audio Reference Signal (SRS) are carried in a subframe, carry neither the uplink control signaling nor an uplink demodulation reference signal in a last OFDM symbol in a second subframe slot.
[88] Preferably, the uplink control signaling may be an Acknowledged/Unacknowledged (ACK/NACK) or Channel State Information (CSI) message for an uplink feedback.
[89] The disclosure further provides an apparatus for carrying a demodulation reference signal during transmission of uplink control signaling, which includes:
[90] a transport unit configured to carry a demodulation reference signal in k OFDM symbols in each slot.
[91] Preferably, in a subframe with a normal cyclic prefix, k=2 or k=3; and
[92] in a subframe with an extended cyclic prefix, k=2 or k=1;
[93] where the transport unit can still be configured to:
[94] in the subframe with the normal cyclic prefix, carry three demodulation reference signals respectively in the following OFDM symbols in each slot:
[95] a second OFDM symbol, a third OFDM symbol, and a sixth OFDM symbol; or
[96] a zero OFDM symbol, a third OFDM symbol and a sixth OFDM symbol; or
[97] a first OFDM symbol, a third OFDM symbol, and a fifth OFDM symbol;
[98] in the subframe with the normal cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot:
[99] a zero OFDM symbol and a fifth OFDM symbol; or
[100] a zero OFDM symbol and a sixth OFDM symbol; or
[101] a first OFDM symbol and a fifth OFDM symbol; or
[102] a second OFDM symbol and a third OFDM symbol; or
[103] a second OFDM symbol and a fifth OFDM symbol;
[104] in the subframe with the extended cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot:
[105] a zero OFDM symbol and a fifth OFDM symbol; or
[106] a zero OFDM symbol and a fourth OFDM symbol; or
[107] a second OFDM symbol and a third OFDM symbol; or
[108] a first OFDM symbol and a fourth OFDM symbol; or
[109] a second OFDM symbol and a fifth OFDM symbol; and
[110] in the subframe with the extended cyclic prefix, supporting a demodulation reference signal in a second OFDM symbol or a third OFDM symbol in each slot;
[111] where the OFDM symbols in each slot are numbered starting from 0.
[112] Preferably, when the two or more OFDM symbols can be occupied by the uplink demodulation reference signal, the demodulation reference signal carried in each OFDM symbol is of the same sequence, or of a sequence subjected to widening of time domains, where the sequence may be a Computer Generated Zero Const Amplitude Correlation (CG-CAZAC) sequence.
[113] In the disclosure, when the uplink control signaling needs to be transmitted is transmitted using the DFT-s-OFDM structure, by the method to transmit the uplink control signaling in the disclosure, the link control information uplink to be transmitted can be successfully transported in a corresponding OFDM symbol in an uplink subframe. The technical solution of the disclosure effectively provides a specific method for transmitting the uplink control signaling using a DFT-s-OFDM structure and a method for transporting an uplink demodulation reference signal when the uplink control signaling uplink is transmitted using the structure.
[114] BRIEF DESCRIPTION OF THE DRAWINGS
[115] Fig.1 shows a schematic diagram illustrating a basic frame structure of the LTE system in the relevant technologies;
[116] Fig. 2 shows a structural diagram of performing precoding using a convolutional tail biting code according to the disclosure;
[117] Fig. 3 shows a schematic diagram of pre-processing according to an embodiment 1 of the disclosure;
[118] Fig. 4 shows a schematic diagram of pre-processing according to an embodiment 2 of the disclosure;
[119] Fig. 5 shows a schematic diagram of pre-processing according to an embodiment 3 of the disclosure;
[120] Fig. 6 shows a schematic diagram of pre-processing according to an embodiment 4 of the disclosure;
[121] Fig. 7 shows a schematic diagram of pre-processing according to an embodiment 5 of the disclosure;
[122] Fig. 8 shows a schematic diagram of pre-processing according to an embodiment 6 of the disclosure;
[123] Fig. 9 shows a schematic diagram of pre-processing according to an embodiment 7 of the disclosure;
[124] Fig. 10 shows a schematic diagram of pre-processing according to an embodiment 8 of the disclosure;
[125] Fig. 11 shows a schematic diagram of pre-processing according to an embodiment 9 of the disclosure;
[126] Fig. 12 shows a schematic diagram of pre-processing according to an embodiment 10 of the disclosure;
[127] Fig. 13 shows a schematic diagram of pre-processing according to an embodiment 11 of the disclosure;
[128] Fig. 14 shows a schematic diagram of pre-processing according to an embodiment 12 of the disclosure;
[129] Fig. 15 shows a schematic diagram of pre-processing according to an embodiment 13 of the disclosure;
[130] Fig. 16 shows a schematic diagram of pre-processing according to an embodiment 14 of the disclosure;
[131] Fig. 17 shows a schematic diagram of pre-processing according to an embodiment 15 of the disclosure;
[132] Fig. 18 shows a schematic diagram of pre-processing according to an embodiment 16 of the disclosure;
[133] Fig. 19 shows a schematic diagram illustrating the structure of an apparatus for transmitting uplink control signaling in accordance with the disclosure; and
[134] Fig. 20 shows a schematic diagram illustrating the structure of an apparatus for carrying an uplink demodulation reference signal during transmission of uplink control signaling in accordance with the disclosure.
[135] DETAILED DESCRIPTION
[136] The disclosure implementation is described taking the ACK/NACK message as an example. When the ACK/NACK message required for uplink feedback is greater than four bits in a subframe, through an encoding mode for the ACK/NACK message provided in the disclosure, the ACK/NACK message to be given in feedback can be successfully carried in a corresponding OFDM symbol in an uplink subframe, so that the uplink feedback is performed successfully.
[137] For a better understanding of the purpose, technical solutions and advantages embodiments are provided below to illustrate the disclosure in greater detail with reference to the attached figures.
[138] Disclosure fundamentally transmits an ACK/NACK message using a DFT-s-OFDM structure; specifically, the ACK/NACK message is preprocessed and then mapped to N OFDM symbols (the number of OFDM symbols occupied by the ACK/NACK message in a subframe) to be transmitted, where the value of N is related to the type of cyclic prefix adopted by the system and the number of OFDM symbols occupied by an uplink reference signal; and the location of the OFDM symbol to which the ACK/NACK message is mapped is related to the location of the uplink reference signal.
[139] In this disclosure, the pre-processing of the ACK/NACK message refers to one of the following two modes:
[140] Mode 1: perform channel coding, scrambling, modulation, time domain spreading and precoding transform in turn;
[141] Mode 2: Perform channel coding, scrambling, modulation, precoding transform, and time domain spreading in turn.
[142] The channel encoding process includes: when the bit number M of the ACK/NACK message O ,O ,...What has to be sent is greater than 11 bits, the encoding is performed using a convolutional code tail biting with length restriction 7 and code rate 1/3, as shown in Fig. 2; in Fig. 2, ck represents a signal to be encoded; D represents a modulator; dk represents an encoded signal; and ® represents an interlaced processing; Fig. 2 shows only a diagram of the exemplary channel coding; when the number of bits M is not greater than 11 bits, encoding is performed using a linear block code where the specific encoding method of the linear block code is: encode multiple feedback messages using a length of a basic sequence includes specifically: b =-1(o .M *.N} )mod2 , where n=0 i=0, 1, 2, ..., B-1; b, b,..., bB_! represents a sequence of bits after encoding; B represents a length after encoding, where two slots carry the same information in a subframe, B=12xQm; when the two slots carry different information, B=2x12xQm(Qm represents a modulation request); N represents the length of the basic sequence; M represents the value of sequence i in basic sequence n; The ,O ,...O represents the signal sent in feedback; where the nase sequence is as shown in Table 1 or Table 2 below; the basic sequence can also take the form of the basic sequence shown in Table 1 or Table 2 subjected to a row permutation, of course, without excluding other forms of basic sequences.


[143] The encryption process includes: adding an encryption string c ,c ,...,ca to an encoded string b ,b ,...,b , and then performing a mode 2 operation to obtain an encrypted string q ,q ,...,q , namely,
, where the scrambling sequence is formed by a pseudo-random sequence, with an initial value of
.
[144] Where QPSK is used to perform the modulation and the modulated sequence is
Qm-1
[145] Where time domain widening refers to spreading the encoded sequence to an OFDM symbol occupied by the ACK/NACK message into a subframe using an orthogonal sequence, where the orthogonal sequence can be a DFT sequence, or a sequence Walsh, or a CAZAC sequence, or a DFT sequence spreading sequence, or a Walsh sequence spreading sequence or a CAZAC sequence spreading sequence; the length of the orthogonal sequence is equal to the number of OFDM symbols occupied by the ACK/NACK message in a slot. When the length of the orthogonal sequence is less than the number of OFDM symbols occupied by the ACK/NACK message, one or more sequences from among the orthogonal sequences can be combined with an original sequence so that the length of the combined sequence is equal to the number of OFDM symbols occupied by ACK/NACK message.
[146] Where the precoding transformation refers to performing a DFT operation on the modulated sequence in the OFDM symbol.
[147] The value of N being related to the type of cyclic prefix adopted by the system and the number of OFDM symbols occupied by an uplink reference signal (DM RS and SRS) refers that: the number of OFDM symbols in a slot current can be obtained according to the type of cyclic prefix adopted by the system; and the number of OFDM symbols occupied by the ACK/NACK message in a slot can be obtained by subtracting the number of OFDM symbols occupied by the uplink reference signal in the slot from the number of OFDM symbols in the current slot; thus, the number N of OFDM symbols occupied by the ACK/NACK message in a subframe can be obtained.
[148] The number of OFDM symbols occupied by the uplink demodulation reference signal is 3 or 2 or 1 in one slot; and the number of OFDM symbols occupied by the uplink SRS is 1.
[149] The location of the OFDM symbol to which the ACK/NACK message is mapped is related to the location of the uplink eference signal and states that: the pre-processed ACK/NACK message is mapped to OFDM symbols other than the OFDM symbol occupied by the uplink reference signal.
[150] For a normal cyclic prefix, the number of OFDM symbols occupied by the uplink demodulation reference signal is 3 or 2 in each slot;
[151] whenever the number of OFDM symbols occupied by the uplink demodulation reference signal is 3, the 3 demodulation reference signals are respectively carried in the following OFDM symbols in each slot: a second OFDM symbol, a third OFDM symbol and a sixth OFDM symbol; or a zero OFDM symbol, a third OFDM symbol, and a sixth OFDM symbol; or a first OFDM symbol, a third OFDM symbol and a fifth OFDM symbol; wherein the demodulation reference signals in the three OFDM symbols may be of the same sequence, or may be a sequence subjected to time domain spreading;
[152] whenever the number of OFDM symbols occupied by the uplink demodulation reference signal is 2, the 2 demodulation reference signals are respectively carried in the following OFDM symbols in each slot: one OFDM symbol zero and a fifth OFDM symbol ; or a zero OFDM symbol and a sixth OFDM symbol; or a first OFDM symbol and a fifth OFDM symbol; or a second OFDM symbol and a third OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol; wherein the demodulation reference signals in the two OFDM symbols may be of the same sequence or may be a sequence subjected to time domain spreading.
[153] For an extended cyclic prefix, the number of OFDM symbols occupied by the uplink demodulation reference signal is 2 or 1 in each slot;
[154] wherein the number of OFDM symbols occupied by the uplink demodulation reference signal is 2, the 2 demodulation reference signals are respectively carried in the following OFDM symbols in each slot: one OFDM symbol zero and a fifth OFDM symbol ; or a zero OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a third OFDM symbol; or a first OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol; wherein the demodulation reference signals in the two OFDM symbols may be of the same sequence or may be a sequence subjected to time domain spreading.
[155] wherein the number of OFDM symbols occupied by the uplink demodulation reference signal is 1, the 1 demodulation reference signal can be carried in a second OFDM symbol or a third OFDM symbol in each slot:
[156] where the OFDM symbols in each slot are numbered starting from 0.
[157] The sequence used by the above demodulation reference signal is a CG-CAZAC sequence.
[158] When an uplink SRS has to be transmitted simultaneously, neither the ACK/NACK message nor the demodulation reference signal are carried in the last OFDM symbol in the second slot of each subframe.
[159] The essence of the technical solutions of the disclosure is illustrated in greater detail below in conjunction with embodiments, in which in embodiments 1 to 12, except that embodiment 2 which describes the condition of a reference signal of uplink demodulation existing in each slot, the other embodiments describe the condition of two uplink demodulation reference signals existing in each slot. Embodiments 13 to 16 describe the condition of three demodulation reference signals existing in each slot. Figs. 3 to 18 are just the exemplary description for the pre-processing of the ACK/NACK message. In the embodiment/modalities, OFDM symbols are numbered starting from 0.
[160] Mod 1
[161] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; no SRS need to be transmitted; the number of OFDM symbols occupied by a DM RS is 2; the DM RS is distributed in the first and second OFDM symbols of each slot discontinuously and the sequence of the DM RS is r''(n)(n = 0.1,...11) as shown in Fig. 3; different control information is carried in the respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in the previous Mode 2 is adopted.

[162] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in the respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b ,b ,...b , and the scrambled and modulated sequence is Q ,Q ,...Q ; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and SRS is not transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 5 in each slot, and thus the Walsh sequence is extended to an orthogonal sequence shown in Table 4.

[163] Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively pre-coded to obtain Q',Q',...Q' and Q',Q',...Q '; an orthogonal sequence
is selected from Table 4 to perform time domain scattering on Q',Q',...Q' and Q',Q',...Q' respectively to map Q',Q',...Q' and Q',Q',...Q' the OFDM symbols zero, second, third, fourth and sixth in each slot; a pilot sequence is mapped to the first and fifth OFDM symbols; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 5 (or Table 6).
Modality 2
[164] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; no SRS need to be transmitted; the number of OFDM symbols occupied by a DM RS is 1 and the DM RS is distributed in the second OFDM symbol of each slot as shown in Fig.4; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 7, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.

[165] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has six OFDM symbols, the number of OFDM symbols occupied by the DM RS is 1 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 5 in each slot; the Q ,Q ,...Q and Q12,Q13,...Q23 are respectively foot-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2 '3; an orthogonal sequence [w(0) ••• w(4)] from Table 5 is selected to respectively perform time domain scattering on Q',Q',...Q' and Q',Q',. ..Q' to map Q',Q',...Q' and Q',Q',...Q' to OFDM symbols zero, first, third, fourth and fifth in each slot; a pilot sequence is mapped
for the second OFDM symbol in each slot.
[166] Modality 3
[167] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed in the first and fifth OFDM symbols of each slot discontinuously as shown in Fig.5; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[168] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in the respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the encoded and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 5 in slot 0, and the number of OFDM symbols occupied by the ACK/NACK message is 4 in slot 1, so the Walsh sequence is repeated for 5 and the orthogonal sequence is as shown in Table 4.
[169] Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively coded to obtain Q',Q',...Q' and Q',Q',...Q'; an orthogonal sequence [ir(O) "'M4)] from table 4 is selected to perform time domain scattering on Q',Q',...Q'to map Q',Q',...Q' for OFDM symbols zero, second, third, fourth and sixth in slot 0; an orthogonal sequence is selected
from Table 3 to perform time domain spreading on Q',Q',...Q' to map Q',Q',...Q' to OFMD symbols zero, second third and fourth slot 1; a pilot sequence is mapped to the first and fifth OFDM symbols in each slot; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is ruav(n)(n = 0.1,...11), or time domain spreading is performed in
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[170] Modality 4
[171] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 1 and the DM RS is distributed in the second OFDM symbol of each slot continuously, as shown in Fig.6; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[172] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in the respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the encoded and modulated sequence is Q0,Q1,...Q23; since each slot has six OFDM symbols, the number of OFDM symbols occupied by the DM RS is 1 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 5 in slot 0, and the number of OFDM symbols occupied by the ACK/NACK message is 4 in slot 1, so the Walsh sequence is repeated for 5 and the orthogonal sequence is as shown in Table 4.
[173] Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively coded to obtain Q',Q',...Q' and Q',Q',...Q' ; an orthogonal sequence [ir(0) "' w(4)] from table 4 is selected to perform time domain scattering on Q',Q',...Q'to map Q',Q',... Q' for OFDM symbols zero, first, second, fourth and fifth in slot 0; an orthogonal sequence [w(0) ... M(3)] from Table 3 is selected to perform time domain spreading in Q' ,Q',...Q'to map Q',Q',...Q' to the zero, first, third and fourth OFMD symbols in slot 1, a pilot sequence is mapped to the second OFDM symbol.
[174] Modality 5
[175] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; no SRS need to be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed in OFDM symbols zero and sixth of each slot discontinuously, as shown in Fig.7; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a DFT sequence, as shown in Table 5, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[176] An ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 5 in each slot; Q ,Q ,...Q and Q12,Q13,...Q23 are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3; an orthogonal sequence is selected [w(0) ••• vr(4)] Table 5 for respectively time domain scattering in Q',Q',...Q' and Q',Q',... Q' to map Q',Q',...Q'and Q',Q',...Q'to the first, second, third, fourth, and fifth OFDM symbols in each slot; a pilot sequence is mapped to OFDM symbols zero and sixth; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 5.
[177] Modality 6
[178] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; no SRS need to be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed in OFDM symbols zero and fifth of each slot discontinuously as shown in Fig.8; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[179] An ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b ,b ,...b , and the scrambled and modulated sequence is Q ,Q ,...Q ; since each slot has six OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 4 in each slot; Q ,Q ,...Q and Q12,Q13,...Q23 are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to respectively perform time domain scattering on Q',Q',...Q'and Q',Q',. ..Q'to map Q',Q',...Q' and Q',Q',...Q' to the first, second, third and fourth OFDM symbols in each slot; a pilot sequence is mapped to OFDM symbols zero and fifth; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[180] Modality 7
[181] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed in the first and seventh OFDM symbols of each slot discontinuously as shown in Fig.9; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a DFT sequence, as shown in Table 7, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[182] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b ,b ,...b , and the scrambled and modulated sequence is Q ,Q ,...Q ; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 5 in slot 0 and the number of symbols OFDM occupied by ACK/NACK message is 5 in slot 1; Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3 ; an orthogonal sequence is selected
from Table 5 to respectively perform time domain spreading on Q',Q',...Q'and Q1'2,Q1'3,...Q2'3to map Q1',Q2',...Q1' 1e Q1'2,Q1'3,...Q2'3for the first, second, third, fourth, and fifth OFDM symbols in each slot; a pilot sequence is mapped to OFDM symbols zero and sixth; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 5.
[183] Modality 8
[184] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed in OFDM symbols zero and fifth of each slot discontinuously as shown in Fig. 10; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[185] An ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b ,b ,...b , and the scrambled and modulated sequence is Q ,Q ,...Q ; since each slot has six OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 4 in each slot; Q ,Q ,...Q and Q ,Q ,...Q are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3; an orthogonal sequence [ w(0) ••• H(3)] from Table 3 is selected to respectively perform time domain scattering on Q',Q',...Q' and Q',Q',. ..Q' to map Q',Q',...Q' and Q',Q',...Q' to the first, second, third and fourth OFDM symbols in each slot; a pilot sequence is mapped to OFDM symbols zero and fifth; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[186] Modality 9
[187] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; an SRS does not need to be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed on the second and third OFDM symbols of each slot continuously, as shown in Fig.11; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a DFT sequence, as shown in Table 7, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[188] An ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 5 in each slot; Q ,Q ,...Q and Q ,Q ,...Q are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3; an orthogonal sequence [w(0) ••• w(4)] from Table 5 is selected to respectively perform time domain scattering on Q',Q',...Q' and Q',Q',. ..Q' to map Q',Q',...Q'and Q',Q',...Q' to OFDM symbols zero, first, fourth, fifth and sixth in each slot; a pilot sequence is mapped to the second and third OFDM symbols in each slot; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[189] Modality 10
[190] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; an SRS does not need to be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed on the second and third OFDM symbols of each slot continuously as shown in Fig.12; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 7, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[191] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has six OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 4 in each slot; Q ,Q ,...Q and Q12,Q13,...Q23 are respectively pre-coded to obtain Q',Q',...Q' and Q',Q',...Q'; an orthogonal sequence [ w(0) ••• H(3)] from Table 3 is selected to respectively perform time domain scattering on Q',Q',...Q' and Q',Q',.. .Q' to map Q',Q',...Q'and Q',Q',...Q'to OFDM symbols zero, first, fourth and fifth in each slot; a pilot sequence is mapped to the second and third OFDM symbols in each slot; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[192] Modality 11
[193] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed on the second and third OFDM symbols of each slot continuously, as shown in Fig.13; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a DFT sequence and a Walsh sequence, as shown in Table 7 and Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[194] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 5 in slot 0 and the number of symbols OFDM occupied by ACK/NACK message is 4 in slot 1; Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively pre-coded to obtain Q1',Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3; an orthogonal sequence [ir(0) "' w(4)] from Table 5 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',... .Q' for OFDM symbols zero, first, fourth, fifth and sixth in slot 0; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to perform time domain scattering in Q ',Q',...Q' to map Q',Q',...Q' to the zero, first, fourth and fifth OFDM symbols in slot 1; a pilot sequence is mapped to the second and third OFDM symbols in each slot; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[195] Modality 12
[196] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 2 and the DM RS is distributed on the second and third OFDM symbols of each slot continuously, as shown in Fig.14; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 7 and Table 8, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.

[197] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b ,b ,...b , and the scrambled and modulated sequence is Q ,Q ,...Q ; since each slot has six OFDM symbols, the number of OFDM symbols occupied by the DM RS is 2 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 4 in slot 0 and the number of symbols OFDM occupied by ACK/NACK message is 4 in slot 1; Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3 ; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',. ..Q' for OFDM symbols zero, first, fourth and fifth in slot 0; an orthogonal sequence [M<0) ••• M(2)] from Table 8 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',.. .Q' for OFDM symbols zero, first and fourth in slot 1; a pilot sequence is mapped to the second and third OFDM symbols in each slot; a pilot frequency can be formed in the two OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[198] Modality 13
[199] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; no SRS need to be transmitted; the number of OFDM symbols occupied by a DM RS is 3, the DM RS is distributed in the zero, third and sixth OFDM symbols of each slot discontinuously and the sequence of the DM RS is r^v(n)(n = 0, 1,...11) as shown in Fig. 15; different control information is carried in the respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in the previous Mode 2 is adopted.
[200] An ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 3 and no SRS is transmitted, therefore the number of OFDM symbols occupied by the ACK/NACK message is 4 in each slot; Q ,Q ,...Q and Q12,Q13,...Q23 are respectively pre-coded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3; an orthogonal sequence [w(0) ••• vi'(3)] from Table 3 is selected to respectively perform time domain scattering on Q',Q',...Q' and Q',Q', ...Q' to map Q',Q',...Q'and Q',Q',...Q'to the first, second, fourth and fifth OFDM symbols in each slot; a pilot sequence is mapped to OFDM symbols zero, third and sixth in each slot; a pilot frequency can be formed in the three OFDM symbols in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) ... w(2)] selected from Table 6.
[201] Modality 14
[202] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts a normal cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 3 and the DM RS is distributed in OFDM symbols zero, third and sixth of each slot discontinuously, as shown in Fig.16; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[203] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 3 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 4 in slot 0 and the number of symbols OFDM occupied by ACK/NACK message is 4 in slot 1; Q ,Q ,...Q and Q ,Q ,...Q are respectively precoded to obtain Q1', Q2',...Q1'1 and Q1'2,Q1'3,...Q2'3 ; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q'to map Q',Q',. ..Q' for the first, second, fourth and fifth OFDM symbols in slot 0; an orthogonal sequence [ w(0) ••• H(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',.. .Q' for the first, second, fourth and fifth OFDM symbols in slot 1; a pilot sequence is mapped to OFDM symbols zero, third and sixth in slot 0 and OFDM symbols zero, and third in slot 1; a pilot frequency can be formed in the three OFDM symbols of slot 0 in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) ... w(2)] selected from Table 6; a pilot frequency can be formed in the two OFDM symbols of slot 1 in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[204] Modality 15
[205] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; an SRS does not need to be transmitted; the number of OFDM symbols occupied by a DM RS is 3 and the DM RS is distributed in the second, third and sixth OFDM symbols of each slot partially continuously, as shown in Fig.17; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[206] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the number of bits of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 3 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 4 in slot 0 and the number of symbols OFDM occupied by ACK/NACK message is 4 in slot 1; Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively pre-coded to obtain Q',Q',...Q'and Q',Q',...Q'; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',.. .Q' for OFDM symbols zero, first, fourth and fifth in slot 0; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',.. .Q' for OFDM symbols zero, first, fourth and fifth in slot 1; a pilot sequence is mapped to the second, third and sixth OFDM symbols in slot 0 and to the second, third and sixth OFDM symbols in slot 1; a pilot frequency can be formed in the three OFDM symbols of slot 0 in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) ... w(2)] selected from Table 6; a pilot frequency can be formed in the three OFDM symbols of slot 1 in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) ... w(2)] selected from Table 6.
[207] Modality 16
[208] Assuming that an ACK/NACK message that has to be transmitted is O ,O ,...O ; the system adopts an extended cyclic prefix; an SRS must be transmitted; the number of OFDM symbols occupied by a DM RS is 3 and the DM RS is distributed in the second, third and sixth OFDM symbols of each slot partially continuously, as shown in Fig.18; different control information is transported in respective slots; the linear block code is the basic sequence shown in Table 1; the orthogonal code is a Walsh sequence, as shown in Table 3, the modulation request Qm=2; and the pre-processing method described in mode 2 above is adopted.
[209] The ACK/NACK O ,O ,...O message that has to be transmitted is encoded; since the bit number of the ACK/NACK message that has to be transmitted is 8 bits and different control information is carried in respective slots, as such the encoding is performed using the linear block code and the length of the encoded sequence is 48, the encoded sequence is b,b,...b, and the scrambled and modulated sequence is Q0,Q1,...Q23; since each slot has seven OFDM symbols, the number of OFDM symbols occupied by the DM RS is 3 and one SRS is transmitted, as such the number of OFDM symbols occupied by the ACK/NACK message is 4 in slot 0 and the number of symbols OFDM occupied by ACK/NACK message is 4 in slot 1; Q0,Q1,...Q11 and Q12,Q13,...Q23 are respectively pre-coded to obtain Q',Q',...Q'and Q',Q',...Q'; an orthogonal sequence [w(0) ••• w(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',.. .Q' for OFDM symbols zero, first, fourth and fifth in slot 0; an orthogonal sequence [H(0) ••• w(3)] from Table 3 is selected to perform time domain scattering on Q',Q',...Q' to map Q',Q',.. .Q' for OFDM symbols zero, first, fourth and fifth in slot 1; a pilot sequence is mapped to the second, third and sixth OFDM symbols in slot 0 and to the second and third OFDM symbols in slot 1; a pilot frequency can be formed in the three OFDM symbols of slot 0 in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) ... w(2)] selected from Table 6; a pilot frequency can be formed in the two OFDM symbols of slot 1 in the following ways: the pilot sequence in each OFDM symbol is
, or time domain scattering is performed on
using an orthogonal sequence [w(0) w(1)] selected from Table 7.
[210] In each of the above embodiments of the disclosure, the above technical solution can also be implemented by the pre-processing method described in the previous Mode 1. Since the implementation details of the pre-processing method described in the previous mode 1 and previous mode 2 are basically the same, the description will not be repeated here.
[211] Fig. 19 shows a schematic diagram illustrating the structure of an apparatus for transmitting uplink control signaling in accordance with the disclosure; as shown in Fig. 19, the apparatus for transmitting uplink control signaling of the disclosure includes a pre-processing unit 190, a mapping unit 191 and a transmission unit 192, wherein
[212] preprocessing unit 190 is configured to preprocess uplink control signaling for uplink feedback;
[213] the mapping unit 191 is configured to map the pre-processed uplink control signaling to an OFDM symbol used to support the uplink control signaling;
[214] the transmission unit 192 is configured to transmit the uplink control signaling.
[215] The pre-processing unit 190 further includes a channel encoding sub-unit, a scrambling sub-unit, a modulation sub-unit, a time domain spreading sub-unit, and a pre-coding transforming sub-unit, wherein
[216] the channel coding sub-unit is configured to perform channel coding on the uplink control signaling;
[217] the encryption subunit is configured to encrypt the uplink control signaling subjected to channel coding;
[218] the modulation sub-unit is configured to modulate encrypted uplink control signaling;
[219] the time domain spreading subunit is configured to perform time domain spreading in modulated uplink control signaling;
[220] the precoding transform subunit is configured to perform precoding transform on uplink control signaling subjected to time domain extension.
[221] Preferably, the precoding transform subunit is further configured to perform precoding transform on the modulated uplink control signaling; and the precoding transform subunit is further configured to perform time domain spreading on the uplink control signaling subjected to precoding transform.
[222] The channel coding subunit is further configured to perform coding using a tail biting convolutional code with a length restriction of 7 and a code rate of 1/3, when a bit number of the uplink control signaling is greater than 11 bits; and perform encoding using a linear block code when the number of bits is not greater than 11 bits; wherein the length of the encoded uplink control signaling is related to whether two slots in a subframe carry the same information, in particular, when two slots in a subframe carry the same information, the length of the uplink control signaling is 12xQm; and when two slots in a subframe carry different information, the length of the encoded uplink control signaling is 24xQm, where Qm is a corresponding modulation request.
[223] Preferably, the scrambling subunit is further configured to add an scrambling sequence to the scrambled uplink control signaling sequence, and then performing a mode 2 operation to obtain an scrambled sequence, wherein the scrambling sequence is formed by a pseudorandom sequence.
[224] The modulation subunit is further configured to modulate the scrambled uplink control signaling by adopting a QPSK modulation mode.
[225] The time domain spreading subunit is further configured to spread the encoded sequence to an OFDM symbol used to transport the uplink control signaling using an orthogonal sequence; wherein the orthogonal sequence is a DFT sequence, or a Walsh sequence, or a CAZAC sequence, or a DFT sequence spreading sequence, or a Walsh sequence spreading sequence, or a CAZAC sequence spreading sequence; and the length of the orthogonal sequence is equal to the number of OFDM symbols used to transmit the uplink control signaling in a slot.
[226] The precoding transform subunit is further configured to perform a DFT operation on a sequence of the uplink control signaling in the OFDM symbol used to support the uplink control signaling.
[227] Preferably, the OFDM symbol used to support the uplink control signaling are OFDM symbols in a subframe other than an OFDM symbol occupied by an uplink reference signal.
[228] The mapping unit 191 is configured not to carry uplink control signaling in the last OFDM symbol in the second slot of the subframe when the uplink control signaling and an SRS are carried in a subframe.
[229] Uplink control signaling is an ACK/NACK or CSI message.
[230] Fig. 20 shows a schematic diagram illustrating a structure of an apparatus for carrying an uplink demodulation reference signal during transmission of uplink control signaling in accordance with the disclosure; as shown in Fig. 20, apparatus for transporting an uplink demodulation reference signal during transmission of uplink control signaling of the disclosure includes a transport unit 200 configured to carry an uplink demodulation reference signal. in k OFDM symbols in each slot.
[231] Where, in a subframe with a normal cyclic prefix, k=2 or k=3;
[232] in a subframe with an extended cyclic prefix, k=2 or k=1.
[233] In the subframe with the normal cyclic prefix, three demodulation reference signals are respectively carried in the following OFDM symbols in each slot: a second OFDM symbol, a third OFDM symbol and a sixth OFDM symbol; or a zero OFDM symbol, a third OFDM symbol, and a sixth OFDM symbol; or a first OFDM symbol, a third OFDM symbol and a fifth OFDM symbol;
[234] in the subframe with a normal cyclic prefix, three demodulation reference signals are respectively carried in the following OFDM symbols in each slot: a zero OFDM symbol and a fifth OFDM symbol; or a zero OFDM symbol and a sixth OFDM symbol; or a first OFDM symbol and a fifth OFDM symbol; or a second OFDM symbol and a third OFDM symbol;
[235] in the subframe with an extended cyclic prefix, three demodulation reference signals are respectively carried in the following OFDM symbols in each slot: a zero OFDM symbol and a fifth OFDM symbol; or a zero OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a third OFDM symbol; or a first OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol;
[236] in the subframe with the extended cyclic prefix, a demodulation reference signal is carried in a second OFDM symbol or a third OFDM symbol in each slot;
[237] when two or more OFDM symbols are occupied by the uplink demodulation reference signal, the demodulation reference signal carried in each OFDM symbol is of the same sequence or sequence subjected to time domain spreading, in which the sequence is a sequence (CG-CAZAC).
[238] Those skilled in the art should understand that the apparatus shown in Figs. 19 and 20 are respectively designed to implement the method for transmitting the uplink control signal and the method for transporting the uplink demodulation reference signal during transmitting the uplink control signaling; the implementation function of each processing unit can be understood with reference to the related description in the previous method. The function of each processing unit can be implemented by a program running on a processor, or it can be implemented by a corresponding logic circuit.
[239] The foregoing are only preferred embodiments of the present disclosure and are not intended to limit the scope of protection of the disclosure.

权利要求:
Claims (22)
[0001]
1. METHOD FOR TRANSMISSION OF UPLINK CONTROL SIGNALING, characterized in that the method comprises: pre-processing the uplink control signaling which is an ACK/NACK message, comprising: successively performing, in the uplink control signaling, encoding channeling, scrambling, modulating, time-domain spreading, and precoding transform, wherein when two slots in a subframe carry the same information, a length of an encoded uplink control signaling is 12xQm; and when two slots in a subframe display different information, the length of an encoded uplink control signaling is 24xQm, where Qm is a corresponding modulation order; or successively perform, in uplink control signaling, channel coding, scrambling, modulation, precoding transformation and time domain spreading, where when two slots in a subframe carry the same information, a length of one signaling coded uplink control is 12xQm; and when two slots in a subframe display different information, the length of an encoded uplink control signaling is 24xQm, where Qm is a corresponding modulation order; or successively; and mapping the uplink control signaling to an Orthogonal Frequency Division Multiplexing symbol used to support the uplink control signaling; and transmitting the uplink control signaling; and carrying a demodulation reference signal in k OFDM symbols in each slot, wherein: in a subframe with a normal cyclic prefix, k = 2 or k = 3; and in a subframe with an extended cyclic prefix, k = 2 or k = 1.
[0002]
2. METHOD according to claim 1, characterized in that the channel coding in the uplink control signaling comprises: when a bit number of the uplink control signaling is greater than 11 bits, the coding is performed using a tail biting convolutional code with length restriction of 7 and code rate of 1/3; and perform encoding using a linear block code when the number of bits is not more than 11.
[0003]
3. The method according to claim 1, characterized in that performing scrambling in the uplink control signaling comprises: adding an scrambling sequence to an encoded uplink control signaling sequence and performing an operation of mode 2 to obtain an encrypted string; wherein the scrambling sequence is formed by a pseudo-random sequence.
[0004]
4. METHOD according to claim 1, characterized by performing modulation in the uplink control signaling comprising: modulating an encrypted uplink control signaling sequence by adopting a Quadrature Phase Shift (QPSK) modulation mode .
[0005]
5. METHOD according to claim 1, characterized in that the spreading of time domains in the uplink control signaling comprises: spreading a sequence of the uplink control signaling processed to an OFDM symbol used to support the uplink signaling. uplink control using an orthogonal sequence; where the orthogonal sequence is a Discrete Fourier Transform DFT sequence, or a Walsh sequence, or a Zero Const Amplitude Autocorrelation sequence CAZAC, or a spreading sequence of the DFT sequence, or a spreading sequence of the Walsh sequence, or a CAZAC sequence spreading sequence; and wherein an orthogonal sequence length is equal to the number of OFDM symbols used to carry uplink control signaling in a slot.
[0006]
6. METHOD according to claim 1, characterized in that performing precoding transformation in the uplink control signaling comprises: performing a DFT operation on a sequence of the uplink control signaling in the OFDM symbol used to carry the uplink control signaling.
[0007]
7. METHOD according to claim 1, characterized in that the OFDM symbol used to carry the uplink control signaling are OFDM symbols in a subframe other than an OFDM symbol occupied by an uplink reference signal.
[0008]
8. METHOD, according to claim 7, characterized by: when the uplink control signaling and an uplink Audible Reference Signal (SRS) are carried in a subframe, neither the uplink control signaling nor an uplink demodulation reference signal are carried in a last OFDM symbol in a second slot of the subframe.
[0009]
The method according to claim 1, 7 or 8, characterized in that the uplink control signaling is an Acknowledged/Unacknowledged ACK/NACK message or CSI Channel Status Information for an uplink feedback.
[0010]
10. METHOD, according to claim 1, characterized by transporting the demodulation reference signal in k OFDM symbols in each slot comprising: in a subframe with a normal cyclic prefix, transporting three demodulation reference signals respectively in the following OFDM symbols in each slot: a second OFDM symbol, a third OFDM symbol and a sixth OFDM symbol; or a zero OFDM symbol, a third OFDM symbol, and a sixth OFDM symbol; or a first OFDM symbol, a third OFDM symbol and a fifth OFDM symbol; in the subframe with the normal cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot: one OFDM symbol zero and a fifth OFDM symbol; or a zero OFDM symbol and a sixth OFDM symbol; or a first OFDM symbol and a fifth OFDM symbol; or a second OFDM symbol and a third OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol; in a subframe with an extended cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot: a zero OFDM symbol and a fifth OFDM symbol; or a zero OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a third OFDM symbol; or a first OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol; and in the subframe with the extended cyclic prefix, carrying a demodulation reference signal in a second OFDM symbol or a third OFDM symbol in each slot; where the OFDM symbols in each slot are numbered starting from 0.
[0011]
11. METHOD according to claim 1, characterized in that whenever two or more OFDM symbols are occupied by the uplink demodulation reference signal, the demodulation reference signal carried in each OFDM symbol is of the same sequence or of a sequence subjected to time domain scattering, where the sequence is a Computer Generated Zero Const Amplitude Correlation (CG-CAZAC).
[0012]
12. TRANSMISSION APPARATUS FOR UPLINK CONTROL SIGNALING, characterized in that it comprises: a pre-processing unit which is configured to preprocess uplink control signaling; a mapping unit which is configured to map the pre-processed uplink control signaling to an OFDM Orthogonal Frequency Division Multiplexing symbol used to carry the uplink control signaling; a transmission unit which is configured to transmit the uplink control signaling; and a bearing unit configured to support an uplink demodulation reference signal in k OFDM symbols in each slot, wherein: in a subframe with a normal cyclic prefix, k = 2 or k = 3; and in a subframe with an extended cyclic prefix, k = 2 or k = 1; wherein the pre-processing unit further comprises: a channel coding sub-unit that is configured to perform channel coding in uplink control signaling, wherein when two slots in a subframe carry the same information, the length of an encoded uplink control signaling is 12xQm; and when two slots in a subframe carry different information, the length of an encoded uplink control signaling is 24xQm, where Qm is a corresponding modulation order; an encryption sub-unit that is configured to encrypt the uplink control signaling subjected to channel coding; a modulation sub-unit that is configured to modulate encrypted uplink control signaling; and a) a time domain spreading sub-unit that is configured to perform time domain spreading on modulated uplink control signaling; and a precoding transform subunit that is configured to perform precoding transform on uplink control signaling subjected to time domain spreading; or b) a precoding transform subunit configured to perform precoding transform on the modulated uplink control signaling; and a time-domain spreading sub-unit configured to perform time-domain expansion on the uplink control signaling subjected to precoding transformation.
[0013]
13. APPARATUS according to claim 12, characterized in that the channel coding sub-unit is further configured to: perform coding using a tail biting convolutional code with a length restriction of 7 and a code rate of 1/3, when a number of bit of uplink control signaling is greater than 11 bits; and perform encoding using a linear block code when the number of bits is not more than 11.
[0014]
Apparatus according to claim 12, characterized in that the scrambling sub-unit is further configured to add an scrambling sequence to the scrambled uplink control signaling sequence, and then performs a mode 2 operation to obtain an scrambled sequence, wherein the scrambling sequence is formed by a pseudo-random sequence.
[0015]
15. APPARATUS according to claim 12, characterized in that the modulation sub-unit is further configured to modulate the scrambled uplink control signaling by adopting a QPSK Quadrature Phase Shift modulation mode.
[0016]
16. APPARATUS according to claim 12, characterized in that the time domain spreading sub-unit is further configured to spread a sequence of the processed uplink control signaling to an OFDM symbol used to transport the uplink control signaling using an orthogonal sequence; wherein the orthogonal sequence is a DFT sequence, or a Walsh sequence, or a CAZAC sequence, or a DFT sequence spreading sequence, or a Walsh sequence spreading sequence, or a CAZAC sequence spreading sequence; and wherein an orthogonal sequence length is equal to the number of OFDM symbols used to carry uplink control signaling in a slot.
[0017]
17. APPARATUS according to claim 12, characterized in that the precoding transform sub-unit is further configured to perform a DFT operation on a sequence of the uplink control signaling in the OFDM symbol used to carry the link control signaling ascending.
[0018]
Apparatus according to claim 12, characterized in that the OFDM symbol used to carry the uplink control signaling are OFDM symbols in a subframe other than an OFDM symbol occupied by an uplink reference signal.
[0019]
19. APPARATUS according to claim 18, characterized in that the mapping unit is further configured for: when the uplink control signaling and an uplink Audible Reference Signal (SRS) are carried in a subframe, neither carry nor the uplink control signaling nor an uplink demodulation reference signal in a last OFDM symbol in a second slot of the subframe.
[0020]
Apparatus according to claim 18 or 19, characterized in that the uplink control signaling is an Acknowledged/Unacknowledged ACK/NACK message or CSI Channel Status Information for an uplink feedback.
[0021]
21. APPARATUS according to claim 12, characterized in that: the transport unit is further configured to: in the subframe with the normal cyclic prefix, transport three demodulation reference signals respectively in the following OFDM symbols in each slot: a second symbol OFDM, a third OFDM symbol and a sixth OFDM symbol; or a zero OFDM symbol, a third OFDM symbol, and a sixth OFDM symbol; or a first OFDM symbol, a third OFDM symbol and a fifth OFDM symbol; in the subframe with the normal cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot: one OFDM symbol zero and a fifth OFDM symbol; or a zero OFDM symbol and a sixth OFDM symbol; or a first OFDM symbol and a fifth OFDM symbol; or a second OFDM symbol and a third OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol; in the subframe with the extended cyclic prefix, carry two demodulation reference signals respectively in the following OFDM symbols in each slot: one symbol symbol according to OFDM zero and one OFDM zero and one OFDM symbol and fifth OFDM symbol; or fourth OFDM symbol; or a third OFDM symbol; or a first OFDM symbol and a fourth OFDM symbol; or a second OFDM symbol and a fifth OFDM symbol; and in the subframe with the extended cyclic prefix, carrying a demodulation reference signal in a second OFDM symbol or a third OFDM symbol in each slot; where the OFDM symbols in each slot are numbered starting from 0.
[0022]
22. APPARATUS according to claim 12, characterized in that whenever two or more OFDM symbols are occupied by the uplink demodulation reference signal, the demodulation reference signal carried in each OFDM symbol is of the same sequence or of a sequence subjected to time domain scattering, where the sequence is a CG-CAZAC Computer Generated Zero Const Amplitude Correlation.

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WO2020142937A1|2019-01-09|2020-07-16|Nec Corporation|Dmrs transmission|

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US20200374066A1|2019-05-20|2020-11-26|Telefonaktiebolaget Lm Ericsson |Control Signaling Structure|

法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-01-14| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-01-21| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04L 27/26 Ipc: H04L 5/00 (2006.01), H04L 25/03 (2006.01), H04L 27 |

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2021-03-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-06-01| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/11/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF |

优先权:

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申请号 | 申请日 | 专利标题

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CN201010255033.2A|CN101902301B|2010-08-12|2010-08-12|Upstream control signaling sends, the bearing method and device of uplink demodulation reference signal|

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CN201010255033.2|2010-08-12|

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PCT/CN2010/079084|WO2012019398A1|2010-08-12|2010-11-24|Method and apparatus for transmitting uplink control signalings and bearing uplink demodulation reference signals|

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