WO2014047862A1 - Procédés, dispositifs et produits de programmes informatiques permettant une transmission de demande d'ordonnancement - Google Patents

Procédés, dispositifs et produits de programmes informatiques permettant une transmission de demande d'ordonnancement Download PDF

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Publication number
WO2014047862A1
WO2014047862A1 PCT/CN2012/082269 CN2012082269W WO2014047862A1 WO 2014047862 A1 WO2014047862 A1 WO 2014047862A1 CN 2012082269 W CN2012082269 W CN 2012082269W WO 2014047862 A1 WO2014047862 A1 WO 2014047862A1
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WO
WIPO (PCT)
Prior art keywords
period
reception mode
scheduling requests
receiver module
explicitly
Prior art date
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PCT/CN2012/082269
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English (en)
Inventor
Chunyan Gao
Jing HAN
Wei Bai
Haiming Wang
Samuli Turtinen
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Broadcom Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to PCT/CN2012/082269 priority Critical patent/WO2014047862A1/fr
Publication of WO2014047862A1 publication Critical patent/WO2014047862A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to methods, devices and computer program products for scheduling request transmission.
  • E-UTRAN evolved universal terrestrial radio access network
  • Embodiments of the invention relate to LTE-Advanced system which will be part of 3GPP LTE Rel-11. More specifically, it is focused on small data transmission in MTC and enhanced diverse data transmission topics in the LTE-Advanced system.
  • MTC UEs which are UEs equipped for MTC, and which communicate through a PLMN with MTC server(s) and/or other MTC device(s).
  • MTC is studied in 3GPP RAN.
  • SI with respect to MTC deals with achieving RAN improvements for MTC, focusing on avoiding RAN overload in order to protect normal legacy UEs which conform to superseded versions of the RAN interface specification, and to improve RAN efficiency when a large number of MTC devices are accessed.
  • small data transmission is one of defined features of MTC.
  • Small data transmission is also one of prioritized features/requirements.
  • another feature of the traffic is that it is intermitted, i.e. there can be a large time interval between two transmissions. It has been shown that in such a case, reserved UL control resource, e.g. SR resource and CQI resource for such UEs can be a waste.
  • the SR resource is currently configured by assigning a period and one subframe offset. This is determined by the RRC parameter sr-Configlndex.
  • the period can be set to 1ms, 2ms, 5ms, 10ms, 20ms, 40ms or 80ms.
  • the SR period can be set large. However, even with a large SR period, such as 80ms, the usage rate of SR is still low for some traffic type.
  • DRX can be configured.
  • the inactive state helps to avoid unnecessary PDCCH detection.
  • traffic is more possible to happen in DRX OFF duration. Basically, it can be expected that when DL traffic occurs, there is likely UL traffic to happen as well. In such a case, there is no more chance that SR transmission is available during DL data/control compared to the DRX ON duration. This results in some unnecessary SR resource reservation (for DRX ON duration), and a longer delay in UL transmission (for DRX OFF duration).
  • the UE does not monitor C-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI and Semi-Persistent Scheduling C-RNTI (if configured). But according to active time definition, once the UE sends a SR, it always has to monitor ail possible downlink control channels after the SR is sent. This reduces the DRX ON duration and increases UE power consumption.
  • the present invention addresses such situation and proposes in exemplary embodiments, new solutions for enhancement of SR transmissions to " improve the resource efficiency.
  • new solutions for enhancement of SR transmissions to " improve the resource efficiency.
  • Such computer program products also encompass computer readable storage media comprising a set of computer-executable instructions which, when the program is run on a device (or on a processor or processing unit thereof which may be part of a controller or control unit or control module), such as a network transceiver device elMB and its processor, cause the device to perform the method aspects.
  • a device or on a processor or processing unit thereof which may be part of a controller or control unit or control module
  • elMB network transceiver device
  • the above computer program product/products may be embodied as a computer-readable storage medium.
  • Fig. 1 schematically illustrates a UE according to at least one exemplary embodiment.
  • Figs. 2 to 4 show flow charts for describing basic operations of the UE according to at least one exemplary embodiment.
  • Fig. 5 schematically illustrates an eNB according to at least one exemplary embodiment.
  • Fig. 9 shows, as a first example, the relationship between a DRX pattern and SR transmission of a flexible SR configuration according to at least one exemplary embodiment.
  • Fig. 10 shows, as a second example, the relationship between a DRX pattern and a flexible SR transmission, as well as the impact on DRX according to at least one exemplary embodiment.
  • Fig. 11 shows the relationship between a DRX pattern and SR transmission of a fixed SR configuration, and the impact on DRX according to the state of the art.
  • Fig. 12a shows a flow chart for activating the SR period P S R_acove in dependence of the active state of the UE and the "OnDurationTimer" according to at least one exemplary embodiment.
  • Fig. 12b shows a flow chart for deactivating the SR period P SR _active in dependence of the "OnDurationTimer" according to at least one exemplary embodiment.
  • Fig. 13a shows a flow chart for activating the SR period PsR_active in dependence of the active state of the UE and the "OnDurationTimer" according to at least one exemplary embodiment.
  • Fig. 13b shows a flow chart for deactivating the SR period P S _acuve in dependence of the "OnDurationTimer” according to at least one exemplary embodiment.
  • LTE long term evolution
  • LTE long term evolution
  • LTE long term evolution
  • LTE local area networks
  • Figs. 1 to 10 pertain to a terminal aspect
  • Figs. 5 to 8 pertain to a NW device aspect.
  • Fig. 1 illustrates a simplified block diagram of a terminal such as a user equipment (UE) 1 according to at least one embodiment of the present invention.
  • the UE may comprise the apparatus according to at least this embodiment, so that the apparatus may be installed in, inserted or plugged into an UE, for example.
  • the UE is only an example and may be replaced by another suitable terminal.
  • the UEs are often referred to as, for example, mobile devices, mobile stations, mobile units, subscriber stations, wireless terminals, or the like.
  • the UE 1 may be implemented as, for example, a wireless handheld device, a wireless plug-in accessory, or the like.
  • the user equipment may include one or more of the following : at least one processor, at least one computer-readable storage medium (e. g . , memory, storage, and the like), one or more radio access mechanisms, and a user interface.
  • the U E 1 may take the form of a wireless telephone, a mobile phone, a computer with a wireless connection to a network, or the like.
  • the UE 1, i .e. the apparatus la, comprises a processor 11 and a memory 12.
  • the memory comprises a computer program, wherein the memory 12 and the computer program are configured to, with the processor, cause the apparatus to perform several operations as described below.
  • the UE 1 and/or the apparatus la may also comprise an interface 13 for providing connections to network elements.
  • the processor 11, the memory 12 and the interface 13 may be inter-connected by a suitable connection 14, e.g . , a bus or the like.
  • the apparatus may comprise more than one processor, more than one memory and/or more than one interface, if this is suitable for a particular structure.
  • Fig . 2 shows a flow chart for describing at least a basic operation according to the present embodiment, which may be performed by the U E 1/apparatus la shown in Fig . 1.
  • a receiver module is caused by a controller of the UE 1/apparatus la to assume one of at least two reception modes.
  • the receiver module can be included in the U E 1/apparatus la .
  • the receiver module does not necessarily have to be included in the U E 1/appa ratus la . Rather, the receiver module can be connected to the UE 1.
  • the receiver module and insofar the U E 1 to which it is associated can be in a first reception mode in which the receiver module is inactive (DRX on), i .e.
  • the receiver module is switched off to save energy so that the U E 1 does not have to decode the PDCCH or receive PDSCH transmissions in certain subfra mes. Otherwise, the UE 1 can be in a second reception mode in which the receiver module is active (DRX off), i.e. the receiver module is switched on.
  • a transmitter module is caused by the controller of the UE 1/apparatus la to send scheduling requests to the network device such as e.g. an eNB.
  • the transmitter module can be included in the UE 1/apparatus la.
  • the transmitted module does not necessarily have to be included in the UE 1/apparatus la. Rather, the transmitter module can be connected to the UE 1/apparatus la. Further, a period between two consecutive scheduling requests differs depending on the reception mode of the receiver module.
  • Fig. 3 shows a flow chart for describing at least a further basic operation according to the present embodiment, which may be performed by the UE 1/apparatus la shown in Fig. 1.
  • Fig. 3 it is at least outlined when a scheduling request is sent.
  • a scheduling request is sent.
  • a network device such as e.g. an eNB
  • the transmitter module is caused by the controller of the UE 1/apparatus la to send a scheduling request in response to the detection of the occurrence of data to be transmitted to a network device.
  • the scheduling request is sent e.g.
  • the scheduling request is send upon the start of the period, whereas in case the detection is made in the period, the scheduling request is send upon expiry of the period.
  • the period (first period) between two consecutive scheduling requests in the first reception mode, i.e. when the receiver module is inactive, is longer than the period (second period) between two consecutive scheduling requests in the second reception mode, i.e. when the receiver module is active.
  • At least one of the first period and the second period are configured explicitly by a network device such as e.g. an eNB.
  • the first period and the second period are configured explicitly by the network device.
  • the first or second period which is not explicitly configured can be derived by the controller of the UE 1/apparatus la based on the period which is explicitly configured by e.g. comparing the length of the period with a predetermined total length to be used for both the first and second period, and subtracting the length of the period from the predetermined total length.
  • the period between two consecutive scheduling requests may further differ depending on a traffic type received and/or transmitted, e.g. whether it is real time traffic or non real time traffic.
  • Fig. 4 shows a flow chart for describing at least a further basic operation according to at least this example embodiment, which may be performed by the UE 1/apparatus la shown in Fig. 1.
  • the reception mode of the receiver module is monitored by the controller of the UE 1/apparatus la.
  • Fig. 5 shows an eNB 5 as an example of a network element which e.g. comprises an apparatus 5a which causes the SR configuration.
  • the eNB 5/apparatus 5a according to this example embodiment comprises a processor 51 and a memory 52.
  • the memory comprises a computer program, wherein the memory 52 and the computer program are configured to, with the processor, cause the apparatus 5a to perform several operations as described below.
  • the eNB 5 and/or the apparatus 5a may also comprise an interface 53 for providing connections to terminals.
  • the processor 51, the memory 52 and the interface 53 may be inter-connected by a suitable connection 54, e.g., a bus or the like.
  • the apparatus may comprise more than one processor, more than one memory and/or more than one interface, if this is suitable for a particular structure.
  • controller of the eNB 5/apparatus 5a performs RC.
  • the controller of the eNB 5/apparatus 5a causes RRC signaling by means of which the E-UTRAN controls the behavior of the UE.
  • Fig. 7 shows a flow chart for further describing at least a basic operation according to this example embodiment, which may be performed by the eNB 5/apparatus 5a shown in Fig. 5.
  • a first scheduling request configuration parameter is defined by the controller of the eNB 5/apparatus 5a in a stage S71.
  • the first period is determined by the controller of the eNB 5/apparatus 5a.
  • a second scheduling request configuration parameter is defined by the controller of the eNB 5/apparatus 5a in a stage S72.
  • the second period is determined by the controller of the eNB 5/apparatus 5a.
  • the controller of the eNB 5/apparatus 5a configures explicitly at least one of the first period and the second period.
  • the controller of the eNB 5/apparatus 5a configures explicitly the first period and the second period.
  • the controller of the eNB 5/apparatus 5a causes to derive the first or second period which is not explicitly configured based on the period which is explicitly configured in that e.g. the controller of the eNB 5/apparatus 5a causes the length of the period to be compared with a predetermined total length to be used for both the first and second period, and the length of the period to be subtracted from the predetermined total length.
  • Fig. 8 shows a flow chart for describing at least a further basic operation according to the present example embodiment, which may be performed by the eNB 5/apparatus 5a shown in Fig. 5.
  • data are transmitted by the controller of the eNB 5/apparatus 5a to the terminal such as e.g. a UE in the second reception mode of the terminal prior to the start of the second period.
  • the second period is caused by the controller of the eNB 5/apparatus 5a to be activated.
  • Fig. 9 shows, as a first example, the relationship between a DRX pattern and SR transmission of a flexible SR configuration according to at least one exemplary embodiment.
  • the receiver module is inactive in the first reception mode, whereas it is active in the second reception mode.
  • UL data arrival happens in the active state of the UE (DRX off) (i.e. second reception mode) rather than in the inactive state of the UE (DRX on) (i.e. first reception mode).
  • UL data arrival is to be understood as the arrival of data at the UE which are to be transmitted from the UE to the network device such as e.g. an eNB.
  • the SR period i.e.
  • the SR period is configured depending on the active state of the UE and the inactive state of the UE, i.e. depending on the reception mode of the UE.
  • the SR period for the active state of the UE and the SR period for the inactive state of the UE is denoted by PsR_aetive and PsRjnactive, respectively. Both periods are configured such that PsRjnactive is longer than Ps _ a cti e, i.e. both periods differ from each other, as can be seen from Fig. 9.
  • the eNB activates the SR period PsR réelle active by causing DL data arrival at the UE, e.g. when one DL grant is received by the UE in the second reception mode. For instance, when the UE receives DL data in the active state of the UE, then the UE will assume that the configured SR period P S R_active is available.
  • the SR period S R_active is implicitly deactivated in the inactive state of the UE.
  • the SR period PsRjnactive is implicitly activated in the inactive state of the UE, and the SR period Psajnactive is implicitly deactivated in the active state of the UE.
  • the eNB causes configuration of the SR periods based on the UE traffic type, e.g. whether the UE supports real time traffic or non real time traffic.
  • UL data arrival i.e. arrival of data at the UE for UL transmission, triggers the transmission of a SR.
  • the first data arrival happens prior to the start of the first SR period.
  • transmission of the SR is performed upon the start of the first SR period.
  • UL data arrival happens in any of the SR periods - either during the active state of the UE or during the inactive state of the UE - transmission of the SR is performed upon expiry of the particular SR period.
  • the UL transmission delay is short. Since no UL data happens during the inactive state of the UE according to the example shown in Fig. 9, the SR reserved in the inactive state is wasted, but the waste is reduced due to the large period PsRjnacuve-
  • the proposal according to Fig. 9 allows a very flexible SR period configuration which has the effect of SR resource saving. This effect is primarily achieved by separately configuring the SR periods for the active state and inactive state of the UE, i.e. depending on the reception mode of the UE, such that the SR period for the inactive state of the UE is longer than for the active state of the UE and, hence, differ from each other. Thereby, resource efficiency concerning transmission of the SR is further achieved.
  • Fig. 10 shows, as a second example, the relationship between a DRX pattern and a flexible SR transmission, as well as the impact on DRX according to at least one exemplary embodiment.
  • the receiver module is inactive in the first reception mode, whereas it is active in the second reception mode.
  • the eNB separately configures the SR period for the active state of the UE and the inactive state of the UE in the second example as well. That is, the eNB configures the SR period depending on the active state of the UE and the inactive state of the UE, i.e. depending on a reception mode of the UE.
  • the SR period for the active state of the UE and the inactive state of the UE is denoted by P S _active and PsRjnactive, respectively.
  • UL data arrival triggers the transmission of a scheduling request in the same way as for the first example of the first embodiment.
  • UL data arrival happens in PSR inactive
  • the UE enters the active state for UL grant detection upon expiry of Ps jnacti e- That is, the SR transmission in the inactive state of the UE causes the active state of the UE to be extended, as indicated by the grey area in Fig. 10.
  • Fig. 11 shows the relationship between a DRX pattern and SR transmission of a fixed SR configuration, and the impact on DRX according to the state of the art.
  • Fig. 11 exemplifies with a single SR period configuration.
  • the SR configuration and the DRX configuration are independent from each other. This is due to the fact that the SR configuration is fixed according to Fig. 11. That is, as to the SR configuration, no difference is made whether the UE is in its active or in its inactive state.
  • Fig. 11 shows the relationship between a DRX pattern and SR transmission of a fixed SR configuration, and the impact on DRX according to the state of the art.
  • Fig. 11 exemplifies with a single SR period configuration.
  • the SR configuration and the DRX configuration are independent from each other. This is due to the fact that the SR configuration is fixed according to Fig. 11. That is, as to the SR configuration, no difference is made whether the UE is in its active or in its inactive
  • the SR period between two consecutive scheduling requests nearly has the same length - independent from the DRX configuration, i.e. whether the UE is in its active or in its inactive state.
  • UL data arrival triggers more SR transmissions as compared to UL data arrival in the second example shown in Fig. 10.
  • UL data arrival in the inactive state of the UE UL data arrival does not only cause the UE to enter the active state for UL grant detection upon expiry of the SR period in which UL data arrival has happened, but may also elongate the active state of the UE to a higher extent as compared to the second example shown in Fig. 10, which gets also obvious by comparing the grey areas of Figs. 10 and 11.
  • the fixed SR configuration according to the state of the art shown in Fig. 11 may lead to an increased power consumption of the UE.
  • the SR transmission is reduced due to sRjnactive being longer than P S R_a_tive- Consequently, the extension of the active state of the UE is reduced accordingly.
  • the flexible SR transmission shown in Fig. 10 has the effect of power saving.
  • the flexible SR configuration and the flexible SR transmission according to Figs. 9 and 10 are implemented so that the SR resource with SR period P S R_ ac tive is only available during the active state of the UE and before the so-called "OnDurationTimer" expires, wherein the so-called “OnDurationTimer” specifies the number of consecutive PDCCH-subframe(s) at the beginning of a DRX cycle.
  • Fig. 12a shows a flow chart for activating the SR period P SR active in dependence of the active state of the UE and the "OnDurationTimer”
  • Fig. 12b shows a flow chart for deactivating the SR period P SR active in dependence of the "OnDurationTimer”.
  • a stage S121 the active state of the UE is set to the ON state. That is, DRX is set off.
  • the "OnDurationTimer” starts counting the number of consecutive PDCCH-subframe(s).
  • the SR period PsR_active is activated.
  • a stage S124 it is checked whether the "OnDurationTimer" has expired. In case it has expired ("YES” in a stage S124), it is proceeded to a stage S125, in which the SR period P S R_activ e is deactivated. Upon deactivation of the SR period sR_act e / in a stage S126, the inactive state of the UE is set to the ON state. That is, DRX is set on. In case it has not expired ("NO" in a stage S124), in a stage S127, the active state of the UE is remained in the ON state.
  • the eNB can easily know beforehand whether the SR resource with the SR period PsR_active can be used by the UE or not. Further, a reuse of the PUCCH resource is simplified for other UEs.
  • the present example embodiment mainly corresponds to the at least one exemplary embodiment as outlined in the foregoing so that the principles and functionality according to the at least one exemplary embodiment also apply on the present example embodiment.
  • the SR resource with period P S R_active is available during all active states of the UE so that the SR resource with the SR period P S R_ ac tive is also available in the grey area shown in Fig. 10, i.e. the area by means of which the active state of the UE is extended in response to UL data arrival in the inactive state of the UE.
  • the consequence of the functionality of the present example embodiment is that the availability of the SR resource with the SR period P S R_ ac tive can only be known by the el ⁇ IB several ms before the SR period. This has the effect that the reuse of the SR resource by other UEs is restricted. However, a greater possibility for SR transmission is provided since the SR resource with the SR period Ps ⁇ active is also available in the grey area shown in Fig. 10.
  • the present example embodiment mainly corresponds to the at least one exemplary embodiment as outlined in the foregoing so that the principles and functionality according to the at least one exemplary embodiment also apply on the present example embodiment.
  • the SR resource period P S _active is implicitly activated n subframes after the socalled "OnDurationTimer" has started running, and is deactivated when the OnDurationTimer expires.
  • the active state of the UE is set to the ON state. That is, DRX is set off.
  • the "OnDurationTimer” starts counting the number of consecutive PDCCH-subframe(s).
  • a stage S133 it is determined whether i equals n. In case i equals n ("YES" in a stage S133), it is proceeded to a stage S135 in which the SR period P S R_active is activated. In case i is not equal to n ("NO" in a stage S133), it is proceeded to a stage S134 in which the index i is incremented by 1. Then, it is returned to a stage S133.
  • a stage S136 it is checked whether the "OnDurationTimer" has expired. In case it has expired ("YES” in a stage S136), it is proceeded to a stage S137, in which the SR period P S _active is deactivated. Upon deactivation of the SR period PsR_acttve, in a stage S138, the inactive state of the UE is set to the ON state. That is, DRX is set on. In case it has not expired ("NO" in a stage S136), in a stage S139, the active state of the UE is remained in the ON state.
  • the SR mainly serves for sending DL related feedback
  • the SR is usually only required after DL transmission in the active state of the UE.
  • an offset of n subframes can further reduce unnecessary SR resource reservation.
  • the eNBs described above are only examples for network control elements.
  • the specific operations for performing the SR configuration and the like may also be carried out by another network control element, for example by a network element on a higher level in a network, in a central manner for the whole network or the like.
  • Embodiments of the present invention may be implemented in software, hardware, application logic or a combination of software, hardware and application logic.
  • the software, application logic and/or hardware generally, but not exclusively, may reside on the devices' modem module.
  • the application logic, software or an instruction set is maintained on any one of various conventional computer-readable media.
  • a "computer-readable medium" may be any media or means that can contain, store, communicate, propagate or transport the instructions for use by or in connection with an instruction execution system, apparatus, or device, such as a computer or smart phone, or user equipment.
  • the present invention relates in particular but without limitation to mobile communications, for example to environments under LTE, WCDMA, WIMAX and WLAN and can advantageously be " implemented in user equipments or smart phones, or personal computers connectable to such networks. That is, it can be implemented as/in chipsets to connected devices, and/or modems or other modules thereof.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente invention concerne des procédés, des dispositifs et des produits de programmes informatiques permettant une transmission de demande d'ordonnancement améliorée afin d'améliorer l'efficacité des ressources. En conséquence, la présente invention fournit un appareil comprenant un contrôleur agencé de manière à : amener un module récepteur à être dans un mode parmi au moins deux modes de réception, amener un module émetteur à envoyer des demandes d'ordonnancement à un dispositif de réseau, une période entre deux demandes d'ordonnancement consécutives variant en fonction du mode de réception du module récepteur. En outre, la présente invention fournit un appareil comprenant un contrôleur agencé de manière à : amener à configurer au moins une période entre deux demandes d'ordonnancement consécutives pour au moins deux modes de réception d'un terminal, respectivement, la ou les périodes variant en fonction du mode de réception du terminal.
PCT/CN2012/082269 2012-09-28 2012-09-28 Procédés, dispositifs et produits de programmes informatiques permettant une transmission de demande d'ordonnancement WO2014047862A1 (fr)

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US20110019628A1 (en) * 2009-07-23 2011-01-27 Li-Chih Tseng Method and Apparatus for Scheduling Request
CN102014442A (zh) * 2009-09-29 2011-04-13 大唐移动通信设备有限公司 发送上行资源调度请求的方法和用户设备
CN102668680A (zh) * 2009-10-09 2012-09-12 三星电子株式会社 移动通信系统中用于发送调度请求信号的方法和装置

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CN106537834A (zh) * 2014-07-14 2017-03-22 高通股份有限公司 在介质访问控制（mac）层处对未使用的资源的伪随机化
CN106537834B (zh) * 2014-07-14 2019-07-05 高通股份有限公司 在介质访问控制（mac）层处对未使用的资源的伪随机化
CN110418433A (zh) * 2018-04-26 2019-11-05 华为技术有限公司 一种降低数据接收时延的方法及装置
CN110418433B (zh) * 2018-04-26 2021-06-15 华为技术有限公司 一种降低数据接收时延的方法及装置

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