WO2017028883A1 - Amélioration de temps d'attente dans des scénarios de réception discontinue - Google Patents

Amélioration de temps d'attente dans des scénarios de réception discontinue Download PDF

Info

Publication number
WO2017028883A1
WO2017028883A1 PCT/EP2015/068784 EP2015068784W WO2017028883A1 WO 2017028883 A1 WO2017028883 A1 WO 2017028883A1 EP 2015068784 W EP2015068784 W EP 2015068784W WO 2017028883 A1 WO2017028883 A1 WO 2017028883A1
Authority
WO
WIPO (PCT)
Prior art keywords
discontinuous reception
control channel
configuration setting
related configuration
reception related
Prior art date
Application number
PCT/EP2015/068784
Other languages
English (en)
Inventor
Esa Mikael Malkamaki
Jari Petteri Lunden
Elena Virtej
Chunli Wu
Original Assignee
Nokia Solutions And Networks Oy
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.)
Filing date
Publication date
Application filed by Nokia Solutions And Networks Oy filed Critical Nokia Solutions And Networks Oy
Priority to PCT/EP2015/068784 priority Critical patent/WO2017028883A1/fr
Publication of WO2017028883A1 publication Critical patent/WO2017028883A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • 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]

Definitions

  • the present invention relates to latency enhancement in discontinuous reception scenarios. More specifically, the present invention exemplarily relates to measures (including methods, apparatuses and computer program products) for realizing latency enhancement in discontinuous reception scenarios.
  • the present specification generally relates to latency reductions.
  • 3GPP 3 rd Generation Partnership Project
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • UE user equipment
  • RRC radio resource control
  • pre-scheduling or blind scheduling is known for reducing latency.
  • pre-scheduling grants do not differ from "normal” scheduling grants.
  • Whether some scheduling is called “pre-scheduling” or “blind scheduling” simply emphasizes the fact that network side has decided to schedule the UE blindly without knowing whether UE has data or not.
  • the network schedules UE just in case even if there was no scheduling request (SR) from the UE's side. In so doing the UL latency is reduced. Namely, in case UE has data for UL transmission, an UL grant is already available, and the delay from the known SR procedure, according to which the UE having data for UL transmission has to first request scheduling and wait for scheduling grant, is avoided.
  • the inactive UE is given UL grants via a physical downlink control channel PDCCH just in case (provided that there are free PDCCH resources and UL resources), and ideally UE transmits only if it has something to transmit and has a pre- scheduled resource.
  • PDCCH physical downlink control channel
  • UE receives an UL grant UE is supposed to use the UL grant and transmit in the UL. If the UE has no data, it sends a buffer status report (BSR) indicating an empty buffer and padding bits to fill the allocated resource.
  • BSR buffer status report
  • a principle for saving energy consumption by the UE is known as discontinuous reception (DRX), meaning that if configured by RRC, UE is allowed to monitor PDCCH in a discontinuous manner.
  • DRX discontinuous reception
  • UL data is received (i.e. is available at the UE)
  • BSR buffer status report
  • the UE triggers a (transmission of a) SR.
  • SR periodicity there may be a long delay before SR is actually sent using the periodic SR resource.
  • Figure 7 shows a schematic diagram of possible signaling sequences if UE utilizes DRX while the network (e.g. an evolved NodeB, eNB) uses pre-scheduling.
  • the network e.g. an evolved NodeB, eNB
  • the UE in case UE sleeps (i.e. is not in Active Time), the UE does not monitor PDCCH where UL grants are transmitted/received, and hence, the UE does not realize the pre-scheduling UL grants.
  • the pre-scheduling UL grants which are not received/realized are indicated by the dashed arrows. Active Time starts only when UE sends due to available UL data an SR. After the SR is sent, the UE receives the pre-scheduling UL grant and can in turn send the BSR and data.
  • a method for a communication endpoint of a mobile communications network said communication endpoint utilizing discontinuous reception of a control channel carrying information on scheduled resources, the method comprising obtaining a discontinuous reception related configuration setting, detecting information indicative of a filling state of a data buffer, and deciding, based on said discontinuous reception related configuration setting, to activate monitoring of said control channel for said scheduled resources, if said information indicative of said filling state of said data buffer indicates that said data buffer is not empty.
  • a method for a network node of a mobile communications network allowing discontinuous reception of a control channel carrying information on scheduled resources, the method comprising deciding whether pre-scheduling of resources is intended, and delivering, based on a result of said deciding, a discontinuous reception related configuration setting.
  • an apparatus for a mobile communications network said apparatus utilizing discontinuous reception of a control channel carrying information on scheduled resources
  • the apparatus comprising an obtaining circuitry configured to obtain a discontinuous reception related configuration setting, a detecting circuitry configured to detect information indicative of a filling state of a data buffer, and a deciding circuitry configured to decide, based on said discontinuous reception related configuration setting, to activate monitoring of said control channel for said scheduled resources, if said information indicative of said filling state of said data buffer indicates that said data buffer is not empty.
  • an apparatus for a mobile communications network allowing discontinuous reception of a control channel carrying information on scheduled resources, the apparatus comprising a deciding circuitry configured to decide whether pre-scheduling of resources is intended, and a delivering circuitry configured to deliver, based on a result of said deciding circuitry, a discontinuous reception related configuration setting.
  • an apparatus for a mobile communications network said apparatus utilizing discontinuous reception of a control channel carrying information on scheduled resources
  • the apparatus comprising at least one processor, at least one memory including computer program code, and at least one interface configured for communication with at least another apparatus, the at least one processor, with the at least one memory and the computer program code, being configured to cause the apparatus to perform obtaining a discontinuous reception related configuration setting, detecting information indicative of a filling state of a data buffer, and deciding, based on said discontinuous reception related configuration setting, to activate monitoring of said control channel for said scheduled resources, if said information indicative of said filling state of said data buffer indicates that said data buffer is not empty.
  • An apparatus for a mobile communications network allowing discontinuous reception of a control channel carrying information on scheduled resources, the apparatus comprising at least one processor, at least one memory including computer program code, and at least one interface configured for communication with at least another apparatus, the at least one processor, with the at least one memory and the computer program code, being configured to cause the apparatus to perform deciding whether pre-scheduling of resources is intended, and delivering, based on a result of said deciding, a discontinuous reception related configuration setting.
  • a computer program product comprising computer-executable computer program code which, when the program is run on a computer (e.g.
  • a computer of an apparatus is configured to cause the computer to carry out the method according to any one of the aforementioned method-related exemplary aspects of the present invention.
  • Such computer program product may comprise (or be embodied) a (tangible) computer-readable (storage) medium or the like on which the computer-executable computer program code is stored, and/or the program may be directly loadable into an internal memory of the computer or a processor thereof. Any one of the above aspects enables an efficient latency reduction without increasing UE power consumption to thereby solve at least part of the problems and drawbacks identified in relation to the prior art.
  • latency enhancement in discontinuous reception scenarios More specifically, by way of exemplary embodiments of the present invention, there are provided measures and mechanisms for realizing latency enhancement in discontinuous reception scenarios.
  • Figure 1 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention
  • Figure 2 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention
  • FIG. 3 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention.
  • Figure 4 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention
  • Figure 5 is a schematic diagram of a procedure according to exemplary embodiments of the present invention
  • Figure 6 is a schematic diagram of a procedure according to exemplary embodiments of the present invention.
  • Figure 7 shows a schematic diagram of possible signaling sequences if UE utilizes DRX while the network (e.g. an evolved NodeB) uses pre-scheduling according to known principles
  • Figure 8 shows a schematic diagram of signaling sequences according to exemplary embodiments of the present invention
  • Figure 9 shows a schematic diagram of signaling sequences according to exemplary embodiments of the present invention.
  • Figure 10 is a block diagram alternatively illustrating apparatuses according to exemplary embodiments of the present invention.
  • Active Time is redefined such that UE goes to Active Time (and thus starts monitoring PDCCH) already when BSR is triggered, i.e., when UL data to be transmitted is available at the UE.
  • pre-scheduling can be used more efficiently since UE would receive UL grant even already before sending SR.
  • the proposed new behavior may be made configurable, i.e., when eNB intends to use pre-scheduling for a given UE, then eNB configures the UE (via RRC signaling) to enter Active Time already when BSR is triggered.
  • eNB configures the UE (via RRC signaling) to enter Active Time already when BSR is triggered.
  • RRC signaling a radio resource control element
  • CE medium access control element
  • a benefit making this proposed new behavior configurable, i.e., of introducing this signaling is that UE does not unnecessarily monitor PDCCH during DRX unless it knows that the eNB is using pre-scheduling.
  • FIG. 1 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention.
  • the apparatus may be a terminal 10 such as a user equipment for a mobile communications network, said apparatus utilizing discontinuous reception of a control channel carrying information on scheduled resources.
  • the apparatus comprises an obtaining circuitry 1 1 , a detecting circuitry 12, and a deciding circuitry 13.
  • the obtaining circuitry 1 1 obtains a discontinuous reception related configuration setting.
  • the detecting circuitry 12 detects information indicative of a filling state of a data buffer.
  • the deciding circuitry 13 decides, based on said discontinuous reception related configuration setting, to activate monitoring of said control channel for said scheduled resources, if said information indicative of said filling state of said data buffer indicates that said data buffer is not empty.
  • the obtaining may be implemented using e.g., RRC signaling and/or using e.g., MAC signaling.
  • Figure 2 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention.
  • Figure 2 illustrates a variation of the apparatus shown in Figure 1 .
  • the apparatus according to Figure 2 may (marked with dashed lines) thus further comprise a receiving circuitry 21 , an acquiring circuitry 22, an entering circuitry 23, and/or an identifying circuitry 24.
  • at least some of the functionalities of the apparatus shown in Figure 1 (or Figure 2) may be shared between two physically separate devices forming one operational entity. Therefore, the apparatus may be seen to depict the operational entity comprising one or more physically separate devices for executing at least some of the described processes.
  • Figure 5 is a schematic diagram of a procedure according to exemplary embodiments of the present invention.
  • the apparatus according to Figure 1 (and Figure 2) may perform the method of Figure 5 but is not limited to this method.
  • the method of Figure 5 may be performed by the apparatus of Figure 1 (or Figure 2) but is not limited to being performed by this apparatus.
  • a procedure for a communication endpoint of a mobile communications network, said communication endpoint utilizing discontinuous reception of a control channel carrying information on scheduled resources
  • the “discontinuous reception related configuration setting” means that the principle according to the present invention ("Active Time (immediately) after BSR trigger", “Active Time after UL data arrival”) is activated/set, i.e., that the "specific behavior” is ON. Since this setting takes effect when the terminal is in DRX mode, this setting is a discontinuous reception related configuration setting. Further, according to exemplary embodiments of the present invention, the network intends to activate this "specific behavior" in case the network plans to schedule blindly (i.e. blind scheduling, pre- scheduling, the network plans to schedule without a scheduling request, etc.), this setting is indicative of that the network plans to schedule blindly, i.e., that the network intends pre-scheduling of resources.
  • the "discontinuous reception related configuration setting" may be a configuration option/item as is as well as a state of the configuration option. That is, a setting may be the option/item "Active Time upon filled buffer/triggered BSR" or “Active Time upon filled buffer/triggered BSR possible” and may further be the state "Active Time upon filled buffer/triggered BSR ON” or "Active Time upon filled buffer/triggered BSR OFF".
  • exemplary details of the obtaining operation (S51 ) are given, which are inherently independent from each other as such.
  • Such exemplary obtaining operation (S51 ) may comprise an operation of receiving a radio resource control message indicative of said discontinuous reception related configuration setting.
  • Such exemplary obtaining operation (S51 ) may comprise an operation of receiving a medium access control control element indicative of said discontinuous reception related configuration setting.
  • a state of the configuration option i.e., ON or OFF, may be communicated as the discontinuous reception related configuration setting and may thus be received via a radio resource control message or a medium access control control element.
  • the configuration option/item as is as may be communicated as the discontinuous reception related configuration setting via a radio resource control message, while a state of the configuration option, i.e., ON or OFF, may be communicated as the discontinuous reception related configuration setting via a medium access control control element, and may thus be activated or deactivated subsequently by such medium access control control element.
  • Such exemplary obtaining operation (S51 ) may comprise an operation of receiving a radio resource control message indicative of said discontinuous reception related configuration setting (e.g. "Active Time upon filled buffer/triggered BSR possible"), and an operation of receiving a medium access control control element indicative of activation of said discontinuous reception related configuration setting (e.g. "Active Time upon filled buffer/triggered BSR ON").
  • a radio resource control message indicative of said discontinuous reception related configuration setting e.g. "Active Time upon filled buffer/triggered BSR possible”
  • a medium access control control element indicative of activation of said discontinuous reception related configuration setting
  • Such exemplary detecting operation (S52) may comprise an operation of acquiring a buffer status report trigger indicative of that said data buffer is not empty.
  • the buffer status report trigger triggers a regular buffer status report mentioned above.
  • exemplary additional operations are given, which are inherently independent from each other as such.
  • an exemplary method according to exemplary embodiments of the present invention may comprise an operation of entering an active time state upon deciding to activate monitoring of said control channel for said scheduled resources.
  • an exemplary method according to exemplary embodiments of the present invention may comprise an operation of identifying, when monitoring said control channel for said scheduled resources, pre-scheduling uplink grants as information about said scheduled resources.
  • FIG. 3 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention.
  • the apparatus may be a network node 30 such as a base station for a mobile communications network allowing discontinuous reception of a control channel carrying information on scheduled resources, comprising a deciding circuitry 31 and a delivering circuitry 32.
  • the deciding circuitry 31 decides whether pre-scheduling of resources is intended.
  • the delivering circuitry 32 delivers, based on a result of said deciding circuitry 31 , a discontinuous reception related configuration setting.
  • pre-scheduling of resources means whether the network plans to schedule blindly (i.e. blind scheduling, pre-scheduling, the network plans to schedule without a scheduling request, etc.).
  • the delivering may be implemented using e.g., RRC signaling and/or using e.g., MAC signaling.
  • Figure 4 is a block diagram illustrating an apparatus according to exemplary embodiments of the present invention.
  • Figure 4 illustrates a variation of the apparatus shown in Figure 3.
  • the apparatus according to Figure 4 may (marked with dashed lines) thus further comprise a transmitting circuitry 41 and/or a communicating circuitry 42.
  • At least some of the functionalities of the apparatus shown in Figure 3 may be shared between two physically separate devices forming one operational entity. Therefore, the apparatus may be seen to depict the operational entity comprising one or more physically separate devices for executing at least some of the described processes.
  • Figure 6 is a schematic diagram of a procedure according to exemplary embodiments of the present invention.
  • the apparatus according to Figure 3 may perform the method of Figure 6 but is not limited to this method.
  • the method of Figure 6 may be performed by the apparatus of Figure 3 (or Figure 4) but is not limited to being performed by this apparatus.
  • a procedure for a network node of a mobile communications network allowing discontinuous reception of a control channel carrying information on scheduled resources
  • exemplary details of the delivering operation (S62) are given, which are inherently independent from each other as such.
  • Such exemplary delivering operation (S62) may comprise an operation of transmitting a radio resource control message indicative of said discontinuous reception related configuration setting.
  • Such exemplary delivering operation (S62) may comprise an operation of transmitting a medium access control control element indicative of said discontinuous reception related configuration setting.
  • Such exemplary delivering operation (S62) may comprise an operation of transmitting a radio resource control message indicative of said discontinuous reception related configuration setting (e.g. "Active Time upon filled buffer/triggered BSR possible"), and an operation of transmitting a medium access control control element indicative of said discontinuous reception related configuration setting (e.g. "Active Time upon filled buffer/triggered BSR ON").
  • a radio resource control message indicative of said discontinuous reception related configuration setting e.g. "Active Time upon filled buffer/triggered BSR possible”
  • a medium access control control element indicative of said discontinuous reception related configuration setting
  • said discontinuous reception related configuration setting indicates that pre-scheduling of resources is intended.
  • an exemplary method according to exemplary embodiments of the present invention may comprise an operation of communicating, on said control channel, pre-scheduling uplink grants as information on said scheduled resources. Subsequently, exemplary embodiments of the present invention are described in more concrete terms with reference to Figures 8 and 9.
  • Figure 8 shows a schematic diagram of signaling sequences according to exemplary embodiments of the present invention, and in particular illustrates pre-scheduling UL grants with Active Time starting already when data arrives in the data buffer or when a BSR is triggered.
  • BSR in this case would be a so called regular BSR.
  • Figure 8 shows that according to exemplary embodiments of the present invention the UE switches to Active Time already when BSR is triggered. As is shown in Figure 8, thus the UE can receive the pre-scheduling UL grant (indicated by solid arrow) earlier than with the approach discussed in relation to Figure 7. For the illustration of Figure 8 it is assumed that application of the principle "Active Time (immediately) after BSR trigger” or "Active Time after UL data arrival" is configured by RRC signaling.
  • the present invention it is decided to activate monitoring of the control channel, if it is recognized that the data buffer is not empty, e.g., if a buffer status report is triggered.
  • the discontinuous reception related configuration setting reveals that the principle according to the present invention ("Active Time (immediately) after BSR trigger", "Active Time after UL data arrival") is activated/set, the Active Time is entered and running when, during discontinuous reception, a regular buffer status report is triggered and is not cancelled.
  • the Active Time includes the time while, among others, a regular BSR is triggered and is not cancelled in case the principle according to the present invention ("Active Time (immediately) after BSR trigger", "Active Time after UL data arrival”) is set.
  • FIG. 9 shows a schematic diagram of signaling sequences according to exemplary embodiments of the present invention, and in particular illustrates pre-scheduling UL grants for TCP ACKs (TCP: transmission control protocol; ACK: acknowledgement) and MAC CE signaling to "activate" use of Active Time after BSR trigger.
  • TCP transmission control protocol
  • ACK acknowledgement
  • Figure 9 shows a sequence according exemplary embodiments of the present invention for TCP as an example.
  • the UE After receiving the TCP packet in downlink (DL) and after sending a hybrid automatic repeat request (HARQ) ACK (and in most cases also the radio link control (RLC) ACK), the UE can go to sleep earlier (there is no need to extend the Active Time such that TCP ACK could be sent during the same Active Time).
  • MAC CE is used to signal to the UE that Active Time should be started already when BSR is triggered (and also that eNB intends to use pre-scheduling).
  • the MAC CE can be sent together with the DL data (TCP packet) or separately.
  • eNB starts sending pre-scheduling UL grants when it expects that the UE could be ready to send the TCP ACK.
  • UE is not receiving the pre-scheduling UL grants when UE sleeps.
  • TCP ACK arrives in the UE buffer, it triggers BSR and according to exemplary embodiments of the present invention, that triggered BSR starts Active Time. Subsequently the UE starts monitoring PDCCH and receives the next pre-scheduling UL grant and can send the TCP ACK faster than with an approach as discussed with respect to Figure 7.
  • pre-scheduling for TCP ACK allows the UE to go back to sleep after receiving the DL data with shorter inactivity timer, or by the network sending UE a DRX Command MAC CE. Otherwise the inactivity timer would have to be long enough to cover the whole processing time in application layer to keep the UE awake.
  • the difference from starting active time upon SR transmission is that the eNB does not know when exactly BSR is triggered, but there will be no UL transmission before BSR is triggered anyway (especially if taking into account other enhancement like skipping the UL transmission when BSR is empty), so no need to monitor PDCCH before that from UE point of view.
  • eNB scheduling can start before or after that based on its scheduler decision and its estimation of UE processing time.
  • a latency reduction is achieved without increasing UE power consumption. Accordingly, it can be benefited from pre-scheduling even in case the UE uses DRX.
  • the SR periodicity can be set longer, since with a working pre-scheduling approach as proposed above, there is no need to go for a 1 ms SR periodicity to reduce (or keep low) the latency.
  • an inactivity timer related to DRX which may normally be started when UE receives PDCCH indicating a new transmission, may alternatively be started (or restarted) only upon a further event. Namely, if PDCCH indicates a new transmission and the UE has data to be sent (i.e. the data buffer is not empty), in case the principle according to the present invention ("Active Time (immediately) after BSR trigger", "Active Time after UL data arrival") is activated/set, this inactivity timer related to DRX is (re)started.
  • drx-lnactivityTimer is to be started or restarted.
  • drx-lnactivityTimer is not started if the UE has no UL data and if the UE does not use the UL grant, i.e., does not transmit anything.
  • the UE has no data in the buffer but anyway transmits something, e.g., an empty BSR, then drx-lnactivityTimer could be started.
  • sending only an empty BSR (BSR indicating that UE has no data in the data buffer) without any data could be defined not to start the drx-lnactivityTimer.
  • the network entity may comprise further units that are necessary for its respective operation. However, a description of these units is omitted in this specification.
  • the arrangement of the functional blocks of the devices is not construed to limit the invention, and the functions may be performed by one block or further split into sub-blocks.
  • the apparatus i.e. network entity (or some other means) is configured to perform some function
  • this is to be construed to be equivalent to a description stating that a (i.e. at least one) processor or corresponding circuitry, potentially in cooperation with computer program code stored in the memory of the respective apparatus, is configured to cause the apparatus to perform at least the thus mentioned function.
  • a (i.e. at least one) processor or corresponding circuitry potentially in cooperation with computer program code stored in the memory of the respective apparatus, is configured to cause the apparatus to perform at least the thus mentioned function.
  • function is to be construed to be equivalently implementable by specifically configured circuitry or means for performing the respective function (i.e. the expression "unit configured to” is construed to be equivalent to an expression such as "means for").
  • the apparatus (terminal) 10' (corresponding to the terminal 10) comprises a processor 101 , a memory 102 and an interface 103, which are connected by a bus 104 or the like.
  • the apparatus (network node) 30' (corresponding to the network node 30) comprises a processor 105, a memory 106 and an interface 107, which are connected by a bus 108 or the like, and the apparatuses may be connected via link 109, respectively.
  • the processor 101/105 and/or the interface 103/107 may also include a modem or the like to facilitate communication over a (hardwire or wireless) link, respectively.
  • the interface 103/107 may include a suitable transceiver coupled to one or more antennas or communication means for (hardwire or wireless) communications with the linked or connected device(s), respectively.
  • the interface 103/107 is generally configured to communicate with at least one other apparatus, i.e. the interface thereof.
  • the memory 102/106 may store respective programs assumed to include program instructions or computer program code that, when executed by the respective processor, enables the respective electronic device or apparatus to operate in accordance with the exemplary embodiments of the present invention.
  • the respective devices/apparatuses may represent means for performing respective operations and/or exhibiting respective functionalities, and/or the respective devices (and/or parts thereof) may have functions for performing respective operations and/or exhibiting respective functionalities.
  • processor or some other means
  • the processor is configured to perform some function
  • this is to be construed to be equivalent to a description stating that at least one processor, potentially in cooperation with computer program code stored in the memory of the respective apparatus, is configured to cause the apparatus to perform at least the thus mentioned function.
  • function is to be construed to be equivalently implementable by specifically configured means for performing the respective function (i.e. the expression "processor configured to [cause the apparatus to] perform xxx-ing” is construed to be equivalent to an expression such as "means for xxx-ing").
  • an apparatus representing the terminal 10 comprises at least one processor 101 , at least one memory 102 including computer program code, and at least one interface 103 configured for communication with at least another apparatus.
  • the processor i.e. the at least one processor 101 , with the at least one memory 102 and the computer program code
  • the processor is configured to perform obtaining a discontinuous reception related configuration setting (thus the apparatus comprising corresponding means for obtaining), to perform detecting information indicative of a filling state of a data buffer (thus the apparatus comprising corresponding means for detecting), and to perform deciding, based on said discontinuous reception related configuration setting, to activate monitoring of said control channel for said scheduled resources, if said information indicative of said filling state of said data buffer indicates that said data buffer is not empty (thus the apparatus comprising corresponding means for deciding).
  • an apparatus representing the network node 30 comprises at least one processor 105, at least one memory 106 including computer program code, and at least one interface 107 configured for communication with at least another apparatus.
  • the processor i.e. the at least one processor 105, with the at least one memory 106 and the computer program code
  • the processor is configured to perform deciding whether pre-scheduling of resources is intended (thus the apparatus comprising corresponding means for deciding), and to perform delivering, based on a result of said deciding, a discontinuous reception related configuration setting (thus the apparatus comprising corresponding means for delivering).
  • any method step is suitable to be implemented as software or by hardware without changing the idea of the embodiments and its modification in terms of the functionality implemented;
  • CMOS Complementary MOS
  • BiMOS Bipolar MOS
  • BiCMOS Bipolar CMOS
  • ECL emitter Coupled Logic
  • TTL Transistor-Transistor Logic
  • ASIC Application Specific IC
  • FPGA Field-programmable Gate Arrays
  • CPLD Complex Programmable Logic Device
  • DSP Digital Signal Processor
  • - devices, units or means e.g. the above-defined network entity or network register, or any one of their respective units/means
  • an apparatus like the user equipment and the network entity /network register may be represented by a semiconductor chip, a chipset, or a (hardware) module comprising such chip or chipset; this, however, does not exclude the possibility that a functionality of an apparatus or module, instead of being hardware implemented, be implemented as software in a (software) module such as a computer program or a computer program product comprising executable software code portions for execution/being run on a processor;
  • a device may be regarded as an apparatus or as an assembly of more than one apparatus, whether functionally in cooperation with each other or functionally independently of each other but in a same device housing, for example.
  • respective functional blocks or elements according to above-described aspects can be implemented by any known means, either in hardware and/or software, respectively, if it is only adapted to perform the described functions of the respective parts.
  • the mentioned method steps can be realized in individual functional blocks or by individual devices, or one or more of the method steps can be realized in a single functional block or by a single device.
  • any method step is suitable to be implemented as software or by hardware without changing the idea of the present invention.
  • Devices and means can be implemented as individual devices, but this does not exclude that they are implemented in a distributed fashion throughout the system, as long as the functionality of the device is preserved. Such and similar principles are to be considered as known to a skilled person.
  • Software in the sense of the present description comprises software code as such comprising code means or portions or a computer program or a computer program product for performing the respective functions, as well as software (or a computer program or a computer program product) embodied on a tangible medium such as a computer-readable (storage) medium having stored thereon a respective data structure or code means/portions or embodied in a signal or in a chip, potentially during processing thereof.
  • the present invention also covers any conceivable combination of method steps and operations described above, and any conceivable combination of nodes, apparatuses, modules or elements described above, as long as the above-described concepts of methodology and structural arrangement are applicable. In view of the above, there are provided measures for latency enhancement in discontinuous reception scenarios.
  • Such measures exemplarily comprise obtaining a discontinuous reception related configuration setting, detecting information indicative of a filling state of a data buffer, and deciding, based on said discontinuous reception related configuration setting, to activate monitoring of a control channel for scheduled resources, if said information indicative of said filling state of said data buffer indicates that said data buffer is not empty.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne des mesures d'amélioration de temps d'attente dans des scénarios de réception discontinue. De telles mesures consistent, à titre d'exemple, à obtenir un réglage de configuration lié à une réception discontinue, à détecter des informations indiquant un état de remplissage d'une mémoire tampon de données, et à décider, sur la base dudit réglage de configuration lié à une réception discontinue, d'activer la surveillance d'un canal de commande pour des ressources ordonnancées, si lesdites informations indiquant ledit état de remplissage de ladite mémoire tampon de données indique que ladite mémoire tampon de données n'est pas vide.
PCT/EP2015/068784 2015-08-14 2015-08-14 Amélioration de temps d'attente dans des scénarios de réception discontinue WO2017028883A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/068784 WO2017028883A1 (fr) 2015-08-14 2015-08-14 Amélioration de temps d'attente dans des scénarios de réception discontinue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/068784 WO2017028883A1 (fr) 2015-08-14 2015-08-14 Amélioration de temps d'attente dans des scénarios de réception discontinue

Publications (1)

Publication Number Publication Date
WO2017028883A1 true WO2017028883A1 (fr) 2017-02-23

Family

ID=53835470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/068784 WO2017028883A1 (fr) 2015-08-14 2015-08-14 Amélioration de temps d'attente dans des scénarios de réception discontinue

Country Status (1)

Country Link
WO (1) WO2017028883A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112314009A (zh) * 2018-05-14 2021-02-02 诺基亚技术有限公司 促进多面板用户设备的不连续接收
WO2022029117A1 (fr) * 2020-08-06 2022-02-10 Telefonaktiebolaget Lm Ericsson (Publ) Commande de déclenchement de temporisateur d'inactivité pour un ue nr

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132685A2 (fr) * 2007-04-26 2008-11-06 Nokia Corporation Système et procédé pour demander des ressources de liaison montante dans un système de communication
EP2667667A1 (fr) * 2011-01-19 2013-11-27 Huawei Technologies Co., Ltd. Procédé de traitement, procédé de communication, et dispositif
US20140301373A1 (en) * 2013-04-03 2014-10-09 Apple Inc. Method and system for scheduling application-generated data requests in discontinuous reception (drx) mode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132685A2 (fr) * 2007-04-26 2008-11-06 Nokia Corporation Système et procédé pour demander des ressources de liaison montante dans un système de communication
EP2667667A1 (fr) * 2011-01-19 2013-11-27 Huawei Technologies Co., Ltd. Procédé de traitement, procédé de communication, et dispositif
US20140301373A1 (en) * 2013-04-03 2014-10-09 Apple Inc. Method and system for scheduling application-generated data requests in discontinuous reception (drx) mode

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KYOCERA: "Initial consideration of fast uplink access solution", vol. RAN WG2, no. Fukuoka, Japan; 20150525 - 20150529, 24 May 2015 (2015-05-24), XP050972455, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN2/Docs/> [retrieved on 20150524] *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112314009A (zh) * 2018-05-14 2021-02-02 诺基亚技术有限公司 促进多面板用户设备的不连续接收
US11924755B2 (en) 2018-05-14 2024-03-05 Nokia Technologies Oy Facilitating discontinuous reception for mutli-panel user equipment
WO2022029117A1 (fr) * 2020-08-06 2022-02-10 Telefonaktiebolaget Lm Ericsson (Publ) Commande de déclenchement de temporisateur d'inactivité pour un ue nr

Similar Documents

Publication Publication Date Title
EP3536069B1 (fr) Procédés et appareils pour la gestion de radiorecherche dans un réseau de communications sans fil
CN107548159B (zh) 处理上行链路传输的装置及方法
US10594447B2 (en) Data transmission method, terminal, and ran device
JP6096775B2 (ja) 不連続受信（ｄｒｘ）と共に構成されるユーザ機器のアクティブ時間ステータスに基づくアップリンク制御シグナリングを送信すべきかの決定
KR101962200B1 (ko) 무선 통신 시스템, 무선 단말, 무선 기지국, 및 무선 통신 방법
CN110557806B (zh) 一种数据传输方法、终端设备及网络设备
EP3298832B1 (fr) Activation de paramètres de réception discontinue
WO2021127866A1 (fr) Procédés de communication, équipement terminal, dispositif de réseau et support lisible par ordinateur
US20090247203A1 (en) Method and Apparatus for Improving DRX Functionality
US20200029385A1 (en) Active time handling with 2-step granting
WO2019192502A1 (fr) Procédé et appareil de commande de temporisateur
EP2148542A1 (fr) Procédé et appareil d&#39;amélioration de la fonctionnalité DRX
US11228933B2 (en) Method for transmitting information and terminal device
CN109792680A (zh) 用于传输数据的方法和终端设备
US20180324847A1 (en) Method and apparatus for triggering an active time to monitor for discontinuous reception
US20180270897A1 (en) Apparatus and method for providing power saving during idle to connected mode transitions
CN113678513A (zh) 非连续接收的方法和设备
US9565631B2 (en) Method and arrangement for controlling discontinuous reception by a user equipment
WO2017028883A1 (fr) Amélioration de temps d&#39;attente dans des scénarios de réception discontinue
CN113365326B (zh) 资源调度方法、装置、设备及存储介质
US20230048889A1 (en) Method and apparatus for timely scheduling
US20180070309A1 (en) Wireless communication system, wireless communication network, wireless terminal, and wireless communication method
CN114287168B (zh) 电信系统中的下行链路监测
WO2014112918A1 (fr) Procédé et agencement dans un système de télécommunications

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15749842

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15749842

Country of ref document: EP

Kind code of ref document: A1