• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    A METHOD AND APPARATUS FOR CONTROLLING SCHEDULING A method for scheduling resources on a communications link, in which scheduling requests are transmitted from a first entity to a second entity comprising determining whether any of the following conditions: the time elapsed since the last scheduling request exceeds a designated time, the uplink requirement exceeds a predetermined level; or semi-persistent programming exists; and if so, suppress transmission and/or activation of programming requests.
    公开号:BR112012007063B1
    申请号:R112012007063-0
    申请日:2009-10-01
    公开日:2021-05-04
    发明作者:Claudio Rosa；Troels Emil Kolding；Benoist Pierre Sebire
    申请人:Nokia Solutions And Networks Oy；
    IPC主号:
    专利说明:

    Description
    This disclosure concerns the scheduling of data between network elements, such as in communication systems, and has particular, but not exclusive, application for the control of transmission of scheduling requests between a user equipment (UE) and a base station in the systems of cell communication.
    A communication system is a facility that facilitates communication between two or more entities such as communication devices, network entities and other nodes. A communication system can be provided by a more interconnected net-works. A communication device can be understood as a device endowed with adequate communication and control capabilities to allow its use to communicate with other parties. Communication can comprise, for example, voice communication, electronic mail (email), text messages, data, multimedia and so on. A communication device normally allows a device user to receive and transmit communication through a communication system and can thus be used to access various service applications.
    In cellular systems, a network entity in the form of a base station provides a node for communicating with mobile devices in one or more cells. A base station is often referred to as a “B node”. There are many different techniques for processing signals for transmission between the base station and user equipment. Typically, the operation of a base station apparatus and other apparatus of an access system required for communication is controlled by a particular control entity. The control entity is normally interconnected with other control entities of the particular communication network.
    A non-limiting example of one type of access architecture is a concept known as evolved universal terrestrial radio access (E-UTRA), which is part of the long-term evolution pattern of the third generation partnership project (3GPP LTE).
    The invention has particular, but not exclusive, application for transmission of request scheduling (SR) from a user equipment of a base station, for example to an evolved node B (ENB), for example for the purpose of requesting resources and scheduling packets of uplink. In E-UTRA systems, an SR is transmitted on the Physical Uplink Control Channel (PUCCH), using dedicated resources that are assigned to a User Equipment (UE), such as a mobile station, on a regular basis (ie. with a certain periodicity). The SR is transmitted as a result of the user equipment wishing to transmit data in uplink.
    In addition, in E-UTRA systems, a temporary storage status report (BSR) is triggered at the UE, if data arrives in its temporary storage that has a higher priority than the data previously available for transmission, or if new data arrives in an empty temporary storage. According to the current methodology, if the UE has no allocation available on the physical Uplink shared channel (to transmit uplink data) for the Time Transmission (TTI) interval where the BSR is triggered, then an SR is triggered. When uplink data traffic is very "burst", characterized by frequent transmission of small packets, for example, in voice applications, user equipment can almost continuously transmit SRs. High transmission levels of SRs cause problems as indicated below.
    Embodiments overcome the aforementioned problems to provide efficient scheduling request control.
    In one embodiment of the invention, a method of scheduling resources of a communications link is provided, wherein scheduling requests are transmitted from a first entity to a second entity comprising: determining whether any of the following conditions exist: the time elapsed since the last scheduling request exceeds a certain period, the uplink requirement exceeds a predetermined level, or semi-persistent scheduling grant is configured, or data arrives on a logical channel and a masking parameter is set, and if so , suppress transmission and/or activation of programming requests.
    The network element can be a first user equipment and the second entity can be a base station.
    Determining whether the uplink requirement exceeds a certain level can include identifying the start and/or end periods of bursts of data in bursty traffic. Burst traffic can be voice traffic or VoIP data packets.
    The scheduling request can be suppressed if the number of transmission time slots or subframes that have passed since the previous Uplink grant is less than a predetermined integer value.
    The scheduling request can be suppressed if the number of broadcast time slots or subframes that have passed since the previous scheduling request is less than a predetermined integer value.
    The integer value can vary depending on the type of traffic, the base station, or cell load, or the periodicity of staging status reporting.
    Suppressing the scheduling requests may comprise not transmitting and/or triggering a scheduling request or intermittently turning on/off the transceiver of said first entity.
    In another embodiment of the invention there is provided a computer program comprising program code means adapted to carry out the steps of any of the above methods when the program is executed on a processor and a computer readable medium comprising such a program. computer.
    In one embodiment of the invention there is provided a network element, or processor therefor, adapted to transmit or receive scheduling requests from a communication link, and having means to suppress the triggering of transmission or reception of scheduling requests if any. of the following conditions: the time elapsed since the last schedule request exceeds a designated period, the uplink requirement exceeds a certain predetermined level; semi-persistent scheduling grant is configured, or, data arrives on a logical channel and a masking parameter is set.
    The network element may be user equipment or base station and may have the means to send/receive scheduling requests via the Physical Uplink Control Channel of an E-UTRA system.
    The network element may have a means to analyze the uplink traffic pattern to identify uplink requirement and/or a means to identify the start and/or the end of data bursts in bursty traffic. Burst traffic can be voice traffic or VoIP data packets.
    The network element may have a means to suppress scheduling requests if the number of transmission time slots or subframes that have passed since the last Uplink grant is less than a predetermined integer value.
    The network element or the processor therefor may have a means to suppress scheduling requests, if the number of transmission time intervals or subframes that have passed since the previous scheduling request is less than a value. predetermined integer.
    The means for suppressing programming requests comprises means for intermittently transforming your transceiver.
    The integer value may vary depending on traffic type, base station, or cell load or the periodicity of staging status reports.
    For a better understanding of the present invention and how it can be carried out, reference will now be made by way of example only in the accompanying drawings, in which:
    Figure 1 shows a schematic presentation of a communication system in which the invention can be incorporated;
    Figure 2 shows a sectional view of communication user equipment;
    Figure 3 illustrates a particular embodiment of reducing the volume of SRs;
    Figure 4 illustrates another embodiment for reducing the volume of SRs; and, Figure 5 illustrates another embodiment how SRs can be deleted.
    Before explaining in detail a few exemplary embodiments, a brief explanation of wireless access is given with reference to Figure 1, showing a communication system, ensuring wireless communication for a plurality of communication devices 1. A communication device 1 , for example a mobile user device, or equipment or a relay node, can be used to access the various services and/or applications provided through the wireless communication system. A communication device may typically have wireless access to a communication system through at least one wireless transmitter and/or receiving node 10 of an access system. Non-limiting examples of access nodes are a base station of a cellular system, for example a 3G WCDMA B node, an enhanced B node (ENB) or 3GPP LTE (long term evolution) relay node, a base station of a wireless (wireless) local area network and a satellite station of a satellite communications system. Communication devices 1 can also communicate directly with each other.
    Communications can be arranged in various ways based on an appropriate radio access technology or technologies. Access is provided through radio channels also known as access channels. Each communication device 1 can have one or more radio channels open at the same time. Each communication device can be connected to more than one base station 10 or similar entity. Furthermore, a plurality of communication devices may communicate with a base station, or the like, and/or attempt to access the communication system through the same base station. A plurality of communication devices can also share a channel. For example, to initiate communications or to connect to a new access system, a plurality of communication devices may attempt to make initial contact via a single channel, for example via a random access channel (RACH). Access attempts can be made at substantially the same time.
    The base station 10 of the access system may be connected to other parts of the communication system via suitable links, by one or more suitable gateway nodes. These are not shown for clarity. A base station is typically controlled by at least one appropriate controller device (this is true for GSM and WCDMA. However, in LTE and WiMAX there is no longer a controller, but the control functionality is distributed to the appropriate network elements such as as general access nodes, base stations, B nodes, eNBs, AP) generally indicated by 11 in Figure 1. Controller apparatus 11 may be provided for managing base station operation and/or communications through the base station. The controller apparatus is typically provided with memory capacity and at least one data processor. Various functional entities can be provided in the controller through their data processing capability. The functional entities provided in the base station controller can provide functions related to radio resource control, access control, packet data context control, relay control and so on.
    A communication device 1 can be used for various tasks, such as making and receiving phone calls, receiving and sending data to and from a data network, and for experiencing, for example, multimedia or other content. For example, a communication device can access applications provided over a telephone network and/or a data network, such as applications that are provided based on the Internet Protocol (IP) or any other appropriate protocol. A suitable mobile communication device can be provided by any device capable of at least sending and/or receiving wireless signals from the access system. Non-limiting examples include a mobile station (MS) such as a cell phone or smartphone, a laptop computer equipped with a wireless interface card or other wireless interface facilities, a personal data assistant (PDA) equipped with capabilities wireless communication, or any combinations of these or the like.
    As shown in Figure 2, a communication device 1 is typically provided with apparatus for suitable data processing, such as at least one data processor 5. At least one memory device 6 is also typically provided. Data processing and storage entities can be provided to an appropriate circuit board and/or chipsets. Different functions and operations can be provided by different chips. Alternatively, at least partially integrated chips can be used. Antenna means 4, a display screen 2, and/or a keyboard 3 may also be provided.
    From a delay perspective, it would be preferable to have very frequent SR occurrences (ie, low SR periodicity) to improve uplink scheduler response time. This could be seen as the time between the arrival of a data packet to UE temporary storage and the first transmission (e.g. HARQ) of the data packet over the same physical shared uplink channel (PUSCH). The data packet can be, for example, a VoIP packet in VoIP applications. On the other hand, low SR periodicity leads to high utilization of limited PUCCH resources. Furthermore, transmitting an SR when necessary through the uplink packet scheduler causes unnecessary interference in the PUCCH SR region (both intra- and inter-cell).
    Known methods of dealing with these issues (by preventing transmission of SRs unnecessarily) include varying the SR periodicity where a maximum number of SRs that can be triggered without receiving a UL grant, called dsr-TransMax, is not defined. By decreasing the occurrences of SR, the SR overhead can be reduced, but at the same time it increases the response time of the uplink scheduler, for example, at the beginning of a period when there is high/frequent packet transmission such as during periods of voice activity in case of a VoIP application. This can cause (for example, voice) the quality to drop below an acceptable level. On the other hand, the DSR-TransMax parameter is provided to prevent a UE from losing UL synchronization from continuously transmitting SRs on uplink. Therefore, when dsr-TransMax is reached and no UL grant for data transmission in Pusch has been received, the UE releases PUCCH (SR) resources and starts a random access procedure, thus not varying the periodicity of SR nor dsr-TransMax overcomes all problems.
    As mentioned in the introduction, "burst" data applications are problematic in that they can cause the user's equipment to almost continuously trigger and transmit SRs. A typical example of a "burst" data application is one where there is frequent transmission of small packets, such as Voice over IP (VoIP). The uplink packet scheduler has general information about the uplink VoIP traffic pattern (eg a VoIP packet of approximately N bits can be generated every 20ms), where N would depend on the Adaptive Multi Rate (AMR) rate of codec, the type of IP header compression method, etc. Therefore, with such applications as VoIP traffic, the uplink programmer|(located in eNode B) only, in principle, needs to know when a period of voice activity starts and when it ends, so that during periods of inactivity, radio resources can be allocated to other users. Although the start of a silent period (eg periods of voice inactivity) can be determined, for example, by proper control of voice activity, an SR transmitted by the UE can also identify the start of a period of voice activity.
    Sending SRs during eg voice activity periods is not very useful. It can be assumed that during periods of voice activity there will always be data to be programmed. For example, the uplink packet scheduler (eg located at node B) only needs to receive an SR at the beginning of a voice activity period in order to identify the start/end of a voice activity period.
    Embodiments of the invention impose various restrictions on the triggering/transmission and/or reception of an uplink SR, and are hereinafter generally referred to as SR transmit/receive suppression. Example 1
    In one embodiment, a restriction is imposed on the transmission and triggering of scheduling requests such that a new SR cannot be transmitted (or will be ignored) if an SR was previously transmitted on the PUCCH within the last NT Transmission Time Intervals (TTI ) or subframes, where NT is an integer.
    In this embodiment, a network element (eg user equipment) will keep a record of when the last SR was transmitted/received and will determine the number of TTIs that have passed since then. If this number exceeds a certain NT integer value, then an SR can be triggered and transmitted uplink. If not, then user equipment will not send any SRs. In other words, SR are suppressed, even under conditions where SR would conventionally be sent.
    The integer NT can be predefined or can be dynamically varied according to various factors such as resources, base station, load, etc. It can be defined by the user equipment or the base station (ENB) or a network controller.
    Figure 3 shows a schematic representation illustrating an example of this embodiment. A number of TTIs 31 are shown in relation to the PUCCH channel. It should be noted that SR resources may not be available in PUCCH in each subframe, the minimum SR periodicity is 5 ms in E-UTRA Rel'8. At the first TTI, an SR is transmitted by a user equipment, as indicated by the up arrow 32. After 8 TTIs have elapsed, at time 33, certain conditions cause a UE to decide to send an SR. This can be, for example, to cause a staging status report to be triggered and that the UE has no assignment available in the PUSCH. In the example, the value of NT is 5, which is the number of TTIs that must have elapsed since the last SR was sent, before another one can be sent. At time point 33, as at least 5 TTIs elapsed before the last SR was sent, so one SR 32 can be sent.
    At 34, the conditions are such that, under normal circumstances, another SR would be sent. However, as only 3 TTIs have passed since the last SR was sent, the user equipment does not send another SR. The dotted arrow 35 represents an SR that is not transmitted, despite the fact that it would have been transmitted there should not have been the restriction in place.
    With such embodiments, a low periodicity (i.e., low latency/response time) can be achieved while reducing the effective transmission of SRs. Previously, the SR periodicity was increased only by controlling the frequency of SR occurrences. Example 2
    In some embodiments, data/high traffic transmission periods are identified; (eg bursty traffic flows, such as voice traffic).
    This can be for a particular user's equipment. At such times, transmission of the SRS to that user equipment is suppressed. The advantages of such embodiments are that in such conditions, a user equipment and/or base station will be prevented from dedicating time to transmit/receive SRs. Generally, the data transmission pattern, which may be generally already known as network elements, can be used to determine whether SRs should be suppressed (eg by identifying the start/end of periods of high traffic). For example, start and end time of voice spurts in VoIP can be detected, during these transmission periods SRs are suppressed.
    The expert would be aware of the various specific methods that can accomplish this. For example, in the circumstances mentioned above, during periods of high data transmission, more resources would be allocated, for example, by issuing more UL grants. In a particular embodiment, therefore, a suppression of SRs may be imposed if there have been frequent UL grants. For example, an SR cannot be triggered/transmitted if an uplink grant was issued for a particular user equipment within the latest Transmission Time Intervals (TTIs), where NG is an integer. A network element, usually this would be user equipment, can keep a record of when the last uplink lease was issued or put into effect and a count is made of the number of TTIs that have passed since that time. If this number is less than a designated integer NG then an SR will be prevented from being transmitted by the user equipment. The restriction imposed by this embodiment means that the eNodeB can, for example, prevent the triggering and transmission of an SR by a UE during periods of voice activity in case VoIP resources are programmed using dynamic scheduling. In dynamic scheduling, the UE transmits the SR but the eNodeB can avoid firing an SR in the UE by proper parameter setting. Dynamic scheduling means that resources are allocated in Pusch using PDCCH (Physical Downlink Control Channel) on a subframe basis. This is in contrast to semi-persistent scheduling where Pusch resources are semi-persistently allocated (ie, to a longer period than a subframe) via a UL grant on PDCCH.
    Figure 4 shows a schematic representation illustrating an example of such an embodiment. A number of TTIs 41 are shown as before. The bottom line shows the timeline in relation to uplink grants 44, 45, designated by thick arrows. The top line indicates the PUCCH as before. At the first TTI (TTI1) an uplink grant 44 was issued. After 10 TTIs have elapsed in point 43, the conditions are such that they cause an SR to be transmitted (again an example might be that the temporary storage state report is triggered as well as new data arriving in a storage temporary empty). In this NG example, the number of TTIs that must have elapsed since the last Uplink grant before an additional SR can be transmitted is fixed to a value of 8. As 10 TTIs have passed since the last uplink grant was issued to the UE in particular, and this is greater than 8, so an SR 42 can be sent. At a time in 45, another Uplink grant is issued. At time point 40, the conditions are again in place such that an SR would be transmitted. However, as the number of elapsed TTIs has since this point is 4, this being less than the required 8, an SR is not yet transmitted, at this point the non-transmitted SR shown by the dotted arrow 46.
    Again, the NG value can be set or can vary dynamically according to prevailing conditions, such as available base station resources, traffic type, cell load, etc. This embodiment is useful in VoIP applications, for example, where, in effect, the transmission of SRs is turned off during periods of voice activity, where it is clear to the uplink scheduler that it has decided to issue frequent uplink leases due to data transmission requirements.
    Effectively, traffic pattern information can be used (eg by the programmer) to determine if an SR is about to be suppressed. If it is decided that there is too much traffic from a particular user equipment, more resources will be allocated (eg by issuing more UL grants), and under these circumstances, time and resources will not be dedicated to transmitting / accepting SR or resource allocation to be sent.
    The advantages of embodiments are that they lead to a decrease in the interference generated (both intra and inter-cell). Another potential advantage of applying such a restriction to VoIP applications is the greater Discontinuous Downlink (DRX) reception gained when DRX is deployed in the presence of VoIP traffic. The invention, however, is not limited to VoIP applications.
    In a further embodiment, where an SR is to be suppressed, the transceiver of a user equipment can be turned off/off for some short periods. In other words, the transceiver function can be intermittent and unused during these SR blanking times.
    Figure 5 shows another embodiment illustrates intermittently turning on/off the transceiver to suppress transmission of scheduling requests. The example shown is in relation to SR suppression, for example, during periods of voice activity for a VoIP call, but the principle can be applied to any data transmissions. At 51, a VoIP packet arrives in an empty temporary store. At 52, an SR is transmitted. At 53, the UL allocation is made and the VoIP packet is transmitted uplink. After this time, there is no longer any need to transmit any new packages. At 56, there is an SR hit but as long as there is no data in temporary storage, no SR is passed. This is avoided by the transceiver being turned off during this period. The SR is suppressed by the UE transceiver being turned off or turned off during this period. In other words an SR packet can be prevented from being transmitted by using an "SP ban timer". At 54, a new VoIP packet arrives in an empty UE staging, so at 55, another SR is made over PUCCH. The time interval between packets arriving in UE temporary storage is 20 milliseconds. During periods 51, 52, 53, 54, the transceiver UE is turned on (as indicated by the boxes), at other times it is turned off. At point 56, the UE may have sent SRs, but as it has already been determined that these are unnecessary, the transceiver UE is turned off. Example 3
    Semi-Persistent Scheduling (SPS) is a technique where an UL periodic broadcast resource is allocated, for example, during periods when there is a certain amount of uplink traffic, such as "chat bursts" during bursty traffic. The same resource is assigned each time. Resource allocation is turned on during each of the conversation bursts and between conversation bursts. In this way, explicit signaling to request an assignment, and to grant a particular VoIP assignment is not necessary.
    In one embodiment, an SR should not be transmitted while an SPS grant is configured, that is, during designated periods with high traffic (eg, during bursts of voice). In these embodiments, this restriction achieves the same results as before.
    Whether or not the UE has to enforce this restriction can be configurable by the eNodeB. Example 4
    In an alternative embodiment, SRs can be suppressed by SR masking on a logical channel basis. For each logical channel that is configured by the ENB, a new parameter is introduced, which tells the UE whether an SR should be triggered when new data arrives on the logical channel. When data arrives on one logical channel (and the data is of higher priority than data already waiting to be transmitted on other logical channels) a temporary storage status report is triggered. If the UE does not have uplink resources to send staging state report a schedule request is triggered. In one embodiment, a mechanism is added setting a condition that the logical channel is also allowed to trigger an SR. The condition can be defined as a parameter. In the examples below, the parameter is designated as SPS-SRmask
    The following is an example of such an embodiment. The Scheduling Request (SR) is used to request UL-SCH resources for the retransmission. When an SR is triggered, it should be considered as pending until it is cancelled. All outstanding SR(s) must be canceled when the MAC PDU is mounted and this PDU includes a BSR that contains the staging state up to (and including) the last event that triggered a BSR or when the UL grant can accommodate all outstanding data available for transmission. According to an embodiment if the following procedure is adopted:
    If an SR is fired and there are no other SRs outstanding, the UE must set the SR-COUNTER to 0.
    While an SR is pending, the UE must, for each TTI: - If there are no UL-SCH resources available for a transmission in this TTI: - If the UE does not have valid PUCCH resources for SR configured in any TTI: start an access procedure random (see 5.1) and cancel all pending SRs; - Otherwise, if the UE has a valid resource for PUCCH SR configured for this TTI and if this TTI is not part of a measurement gap: - If SR_COUNTER < dsr-TransMax: - increment SR_COUNTER by 1; - SPS-if SRmask is set to true and a Semi-Persistent Uplink Schedule grant is not configured; - Or if SPS-SRmask is not set to true: - Instruct the physical layer to signal the SR in PUCCH; - otherwise: - Notify RRC to launch PUCCH / SRS; - Clear any configured downlink assignments and uplink grants; - Start a random access procedure (see subsection 5.1) and cancel all pending SRs.
    Until temporary storage status reports are configured, in one embodiment the following procedure can be adopted according to another embodiment as follows:
    If the temporary storage reporting procedure determines that at least one BSR has been fired since the last transmission of a BSR or if this is the first time that at least one BSR is fired: - If the UE has UL resources allocated for retransmission for this TTI: - Instruct the Multiplexing and Mounting procedure to generate a BSR MAC control element; - Start or restart periodicBSR-Timer, except when the BSR is a truncated BSR; - Start or restart retxBSR-Timer. - Or, if a regular BSR was triggered: - If the trigger was only data made available for transmission: - If for at least one logical channel through which data became available for transmission logicalÇhannel SRmask is not set to true: - A schedule request must be triggered. - Otherwise: - A schedule request must be triggered.
    The functions described above can be provided by means of appropriate software and a data processing apparatus. Functions can be incorporated into any appropriate network element or management system and can be provided through one or more data processors. The data processor can be provided by means of, for example, at least one chip. Appropriate data processing can be provided in a processing unit provided in association with a communication device, for example a mobile station. Data processing can be distributed through various data processing modules. The functions described above can be provided by separate processors or through an integrated processor. An appropriately or adapted computer program code product or products can be used to implement the embodiments, when loaded into an appropriate data processing apparatus. The program code product to provide the operation may be stored in and delivered by an appropriate carrier means. An appropriate computer program may be embedded in a computer-readable record medium. One possibility is to download the program product code to a communication device via a data network.
    It is also to be noted that, although certain embodiments have been described above by way of example with reference to certain exemplary architectures for wireless networks, technologies and standards, embodiments can be applied to any other suitable forms of communication systems than those illustrated. and described here.
    It is also to be noted here that, while the above describes exemplifying embodiments of the invention, there are many variations and modifications that can be made to the disclosed solution without departing from the scope of the present invention.
    权利要求:
    Claims (11)
    [0001]
    1. Method characterized by comprising: determining whether a time elapsed since a last transmission of a scheduling request from a user equipment to a base station exceeds a first designated period, NT, or whether a time elapsed since a last transmission of a grant uplink from a base station to a user equipment exceeds a second designated period, NG, and suppresses the transmission or triggering of scheduling requests if it is determined that the time elapsed since the last transmission of a scheduling request from the user equipment to the base station does not exceed said first designated period, NT, or it is determined that the time elapsed since the last transmission of an uplink grant from the base station to the user equipment exceeds said second designated period, NG.
    [0002]
    2. Method according to claim 1, characterized in that the programming requests are transmitted through the physical uplink control channel of a universal mobile telecommunications system evolved terrestrial radio access system.
    [0003]
    A method according to any one of claims 1 or 2, characterized in that said first designated period, NT, can vary according to the resources or load of the base station.
    [0004]
    4. Method according to any one of claims 1 or 2, characterized in that said second designated period, NG, can vary according to the type of traffic, base station or cell load or the periodicity of buffer status reports .
    [0005]
    Method according to any one of claims 1 to 4, characterized in that the step of suppressing the transmission or triggering of programming requests comprises intermittently turning on/off the transceiver of said user equipment.
    [0006]
    6. A user equipment or a base station, characterized by comprising: means for determining whether an elapsed time since the last transmission of a scheduling request from the user equipment to a base station exceeds a designated period, NT or whether an elapsed time since the last transmission of an uplink grant from a base station to a user equipment exceeds a second designated period, NG, and means to suppress triggering of scheduling requests if it is determined that the time elapsed since the last transmission of a request user equipment to base station scheduling time does not exceed a designated period of time, NT , or it is determined that the time elapsed since the last transmission of an uplink grant from base station to user equipment exceeds said second period designated, NG.
    [0007]
    7. A user equipment or a base station, according to claim 6, characterized by having means to send or receive scheduling requests through a physical uplink control channel of a universal mobile telecommunications system evolved access system by terrestrial radio.
    [0008]
    A user equipment or a base station according to any one of claims 6 or 7, characterized in that it includes means for analyzing an uplink traffic pattern to identify an uplink requirement.
    [0009]
    A user equipment or a base station, according to any one of claims 6 to 8, characterized in that it has means to identify a start and/or end of data bursts in heavy traffic.
    [0010]
    A user equipment or a base station, according to claim 9, characterized in that the bursty traffic is voice traffic or voice over internet protocol data packets
    [0011]
    A user equipment or a base station according to any one of claims 6 to 10, characterized in that the means for suppressing scheduling requests comprises means for intermittently turning on/off a transceiver of the user equipment or a base station.
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    法律状态:
    2017-10-24| B25D| Requested change of name of applicant approved|Owner name: NOKIA SOLUTIONS AND NETWORKS OY (FI) |
    2019-01-22| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-12-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2019-12-24| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04W 72/12 Ipc: H04W 72/12 (2009.01), H04W 28/06 (2009.01) |
    2020-11-24| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-03-02| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-04| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 04/05/2021, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/EP2009/062773|WO2011038768A1|2009-10-01|2009-10-01|A method and apparatus to control scheduling|
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