WO2019206249A1 - Procédé et dispositif de réduction de retard de réception de données - Google Patents

Procédé et dispositif de réduction de retard de réception de données Download PDF

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Publication number
WO2019206249A1
WO2019206249A1 PCT/CN2019/084423 CN2019084423W WO2019206249A1 WO 2019206249 A1 WO2019206249 A1 WO 2019206249A1 CN 2019084423 W CN2019084423 W CN 2019084423W WO 2019206249 A1 WO2019206249 A1 WO 2019206249A1
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Prior art keywords
communication device
drx
timer
parameter information
network device
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PCT/CN2019/084423
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English (en)
Chinese (zh)
Inventor
庞高昆
庄宏成
方平
Original Assignee
华为技术有限公司
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Priority claimed from CN201810853387.3A external-priority patent/CN110418433B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019206249A1 publication Critical patent/WO2019206249A1/fr

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    • 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 application relates to the field of mobile communications technologies, and in particular, to a method and apparatus for reducing data reception delay.
  • discontinuous reception refers to a mode of saving power consumption of a UE by a communication device such as a user equipment (UE) or a base station.
  • a communication device such as a user equipment (UE) or a base station.
  • UE user equipment
  • the UE is alternately placed. Active state and sleep state, and the UE turns on the receiver to listen for and receive downlink data and signaling only when it is in an active state, and turns off the receiver to stop receiving downlink data and signaling when in the sleep state, so that the UE is in an active state
  • the transmission delay is lower than the transmission delay in which the UE is in a sleep state.
  • the base station sends a DXR parameter to the communication device managed by itself, to configure the duration of the communication device in the sleep state and the duration of configuring the communication device to be in the active state.
  • the communication device accepts the DRX parameter configured by the base station and executes according to the DRX parameter.
  • DRX cannot actively request an extended activation state to reduce the transmission delay.
  • the present application provides a method and apparatus for reducing data reception delay to solve the technical problem that an existing communication device cannot actively request to extend an activation state or stop performing DRX to reduce transmission delay.
  • an embodiment of the present application provides a method for reducing a data reception delay, where a communication device sends a request message to a network device, where the request message is used by the network device to determine to send a first message to the communication device, so that the network device receives After the request message, the first message may be sent to the communication device, where the first message is used by the communication device to determine an extended activation state, and the communication device extends the activation state after receiving the first message.
  • the communication device such as the UE may request the network device to extend the duration of the active state, and extend the activation state after receiving the first message sent by the network device, because the user equipment is in the active state when transmitting in the DRX transmission mode.
  • the delay is lower than the transmission delay when the user equipment is in a sleep state, so the method can reduce the transmission delay by extending the duration in which the communication device is in an active state.
  • the communication device can send a request message to the network device before determining that the duration timer and/or the inactivity timer timer of the self-maintenance timer expires, which can prevent the communication device from timing due to the persistent timer and the inactive state. After the timer expires, the sleep state is entered, and the transmission delay is increased; in the implementation, the communication device can determine that the inactive timer of its own maintenance is in or not in the timed state, and determines that the duration timer maintained by itself does not time out.
  • the request message is sent to the network device; the communication device may also send a request message to the network device if it determines that the duration timer maintained by itself is in or not in a timed state, and determines that the inactive state timer maintained by itself does not time out.
  • the communication device may send a request message to the network device after determining to enter the low-latency scenario and/or use the low-latency service to prevent the communication device from being in a low-latency scenario or not using a low delay. Extending the activation state during business causes an increase in power consumption.
  • the communication device may send a scheduling request SR to the network device, and after receiving the scheduling request, the network device may send PDCCH scheduling signaling to the communication device, for restarting the inactive state timer of the communication device, and communicating After receiving the PDCCH scheduling signaling sent by the network device, the device restarts the inactivity timer to extend the activation state.
  • the network device may restart the inactive state timer of the communication device maintained by itself, and consider the communication device to be in an active state before the inactive state timer expires.
  • the network device can perform downlink transmission to the communication device immediately after receiving the downlink data that needs to be sent to the communication device.
  • the communication device may carry the second DRX parameter information in the request message, and request the network device to configure the second DRX for the communication device. Parameter information.
  • the network device may carry the indication in the first message to agree to configure the second DRX parameter information for the communications device, so that the communications device may perform the DRX according to the second DRX parameter information after receiving the first message, where the second
  • the DRX parameter information may include one of the following information: indicating that the communication device does not perform DRX, indicating that the communication device does not enter a sleep state during a long DRX cycle, indicating that the length of the long DRX cycle is set to 0: indicating the length of the long DRX cycle Information, and the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; the information indicating the value of the inactive state timer, and the value of the inactive state timer is greater than the first DRX parameter information The value of the indicated inactivity timer; information indicating the value of the duration timer, the value of the duration timer being greater than the value of the duration timer indicated by the first DRX parameter information; information
  • the network device may carry the third DRX parameter information in the first message, so that the communications device may perform DRX according to the third DRX parameter information after receiving the first message, where the third DRX parameter information may include One of the following information: information indicating that the communication device does not perform DRX, indicating that the communication device does not enter a sleep state during a long DRX cycle, indicating that the length of the long DRX cycle is set to 0: information indicating the length of the long DRX cycle, and is long The length of the DRX cycle is smaller than the length of the long DRX cycle indicated by the first DRX parameter information; the information indicating the value of the inactive state timer, and the value of the inactive state timer is greater than the inactive state indicated by the first DRX parameter information.
  • the request message sent by the communication device to the network device may carry information indicating that the discontinuous reception DRX capability of the communication device is not supporting DRX, and after receiving the request message, the network device may send the specific message to the communication device.
  • the first message is used to indicate that the communication device does not perform DRX, and the communication device may not enter the sleep state from the activated state after receiving the first message.
  • the request message sent by the communication device to the network device may be a registration request message for implementing re-registration of the communication device, and the communication device notifies the network device of the information that the communication device does not support the DRX by using the registration request.
  • the DRX command medium access control element may be included in the request message, and the corresponding bit of the element is 0.
  • the communication device may also determine that the time interval from the communication device previously sending the first registration request reaches a preset duration, for example, the preset duration may be 24 hours to prevent the communication device. Frequent registration process.
  • the embodiment of the present application further provides a method for reducing data reception delay, including the following steps: the communication device performs DRX according to the first discontinuous reception DRX parameter information configured by the network device; and the communication device is multiple times within the first duration.
  • Physical downlink control channel PDCCH scheduling signaling after receiving the physical downlink control channel PDCCH scheduling signaling, the communications device starts or restarts the timing of the inactive state timer, and the PDCCH scheduling signaling is used to indicate the uplink resource.
  • the time interval between any two consecutive transmissions of the SR is a preset duration
  • the communication device sends the scheduling request SR to the network device multiple times in the first time, including: the communication device is in the first
  • the scheduling request SR is sent to the network device every preset time period.
  • the transmission time interval is smaller than the maximum timing indicated by the value of the inactivity timer maintained by the communication device; or, the transmission time interval is greater than the maximum timing, and the preset duration is less than N times of the maximum timing, N is taken 3, 2 or 1.5.
  • the communication device before the communication device sends the scheduling request SR to the network device multiple times within the first time period, the communication device further includes: the communication device determines to enter the low-latency scenario, and/or the communication device determines to use the low-latency service.
  • the embodiment of the present application provides a communication device, which has the function of implementing the behavior of the communication device in the method provided by the first aspect or the second aspect.
  • the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software or a combination of hardware and software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • a communication device for reducing data reception delay comprising a processor and a transmitter, where the transmitter is configured to send a request message to the network device, where the request message is used by the network device to determine to send the message to the communication device.
  • a message the first message is used by the communication device to determine the length of time for extending the activation state of the discontinuous reception DRX; and the processor is configured to extend the duration of the activation state after the communication device receives the first message.
  • the processor is further configured to: determine that the duration timer maintained by the communication device does not time out; or determine that the inactivity timer maintained by the communication device does not time out; or determine that the duration timer maintained by the communication device does not time out, And determining that the inactive state timer maintained by the communication device has not timed out; or determining that the inactive state timer maintained by the communication device is not in a timed state, and determining that the duration timer maintained by the communication device has not timed out; or determining that the communication device maintains inactivity
  • the status timer is in a timed state, and the persistent timer maintained by the communication device is not timed out; or the persistent timer maintained by the communication device is not in a timed state, and the inactive state timer maintained by the communication device is not timed out; or the communication is determined
  • the duration timer of the device maintenance is in a timed state, and the inactivity timer maintained by the communication device is not timed out; wherein the value of the duration timer is used to indicate
  • the processor is further configured to: determine that the communication device enters a low latency scenario, and/or determine that the communication device is using low latency traffic.
  • the request message is a scheduling request SR
  • the first message includes PDCCH scheduling signaling
  • the PDCCH scheduling signaling is used by the communications device to determine the timing of resetting the inactive state timer; if the communication device maintains an inactive state The timer is not in a timed state, and the processor is specifically configured to: enable the inactive state timer to start timing, and remain active until the timeout of the inactive state timer expires; if the inactive state timer maintained by the communication device is in a timed state The processor is specifically configured to: restart the inactivity timer and maintain an active state before the timing of the inactive timer expires; wherein the value of the inactive timer is used to indicate that the communication device receives the physical downlink The duration of the active channel after the control channel PDCCH scheduling signaling.
  • the communication device further includes a receiver: the receiver is configured to receive the first discontinuous reception DRX parameter information, and the processor is further configured to: perform DRX according to the first DRX parameter information; and the request message is specifically used to request the network.
  • the device configures the second DRX parameter information for the communication device, where the first message is specifically used to indicate that the network device agrees to configure the second DRX parameter information for the communication device, and the processor is specifically configured to: extend the duration of the active state according to the second DRX parameter information;
  • the second DRX parameter information includes at least one of the following: information for indicating that the communication device does not use the DRX mechanism; or information for indicating that the communication device does not sleep during a long DRX cycle; or for indicating a long DRX cycle Information whose length is set to 0; or information indicating the length of the long DRX cycle, the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; or is used to indicate the inactivity timer Numerical information, the value of the inactive state timer is greater than the value of the inactive state timer indicated by the first DRX parameter information Or information indicating a value of the duration timer, the value of the duration
  • the communication device further includes a receiver, configured to receive the first discontinuous reception DRX parameter information, and the processor is further configured to: perform DRX according to the first DRX parameter information; and the request message is specifically used to request the network device to be
  • the communication device configures the second DRX parameter information, the first message includes the third DRX parameter information, and the processor is specifically configured to: the communication device extends the duration of the active state according to the third DRX parameter information; wherein the third DRX parameter information includes the following At least one of: information indicating that the communication device does not use the DRX mechanism; or information indicating that the communication device does not sleep during a long DRX cycle; or information indicating that the length of the long DRX cycle is set to 0; or For information indicating the length of the long DRX cycle, the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; or the information indicating the value of the inactive state timer, the in
  • the request message is specifically used to indicate that the discontinuous reception DRX capability of the communication device is not supporting DRX; the first message is specifically used to indicate that the communication device does not perform DRX; and the processor is specifically configured to: keep the communication device active status.
  • the processor is further configured to: determine a sending time for sending the first registration request, where the first registration request is a registration request sent by the sender before sending the request message, and the communication device indicated by the first registration request
  • the DRX capability is different from the DRX capability of the communication device indicated by the request message; the time interval for determining the distance transmission time has reached a preset duration.
  • the request message includes a DRX command medium access control element, and the corresponding bit of the element is 0.
  • the embodiment of the present application provides a network device, where the network device has a function of implementing network device behavior in the method provided by the foregoing first or second aspect.
  • the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software, or combining software and hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the network device provided by the embodiment of the present application includes a receiver and a transmitter.
  • the receiver is configured to receive a request message, where the request message is used by the network device to determine to send a first message to the communications device, where the first message is used for communication.
  • the device determines to extend the duration of the activation state of the discontinuous reception DRX; the transmitter is configured to send the first message to the communication device.
  • the request message is a scheduling request SR
  • the first message is a physical downlink control channel PDCCH information
  • the PDCCH information is used to indicate that the communication device starts the inactivity timer maintained by the communication device
  • the inactive state timer The value is used to indicate the length of time that the communication device remains active after receiving the physical downlink control channel PDCCH scheduling signaling.
  • the network device further includes a processor; if the inactive state timer maintained by the network device is not in a timing state, the processor is configured to enable the inactive timer to start timing, and in the inactive state timer The timing timeout start communication device is activated; if the inactivity timer maintained by the network device is in the timing state, the processor is configured to cause the inactivity timer to restart timing, and the communication device is started when the inactivity timer expires. Is active.
  • the transmitter is further configured to: send, to the communications device, first DRX parameter information, where the first DRX parameter information is used to indicate that the communications device performs DRX according to the first DRX parameter information; and the request message is specifically used to request the network device.
  • the second DRX parameter information includes at least one of the following: used to indicate the communication device Information that does not use the DRX mechanism; or information that indicates that the communication device does not enter a sleep state during a long DRX cycle; or information that indicates that the length of the long DRX cycle is set to 0; or is used to indicate the length of the long DRX cycle Information, the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; or the information indicating the value of the inactive state timer, the value of the inactive state timer is greater than the first DRX parameter information The value of the indicated inactivity timer; or information indicating the value of the duration timer, the value of the duration timer The value of the duration timer indicated by the first DRX parameter information is greater than the value of the duration
  • the transmitter is further configured to: send, to the communications device, first DRX parameter information, where the first DRX parameter information is used to indicate that the communications device performs DRX according to the first DRX parameter information; and the request message is specifically used to request the network device.
  • the second DRX parameter information is configured for the communications device, where the first message includes the third DRX parameter information, where the first message is specifically used to instruct the communications device to perform the DRX according to the third DRX parameter information, where the third DRX parameter information includes at least the following An item: information for indicating that the communication device does not use the DRX mechanism; or information for indicating that the communication device does not enter the sleep state during the long DRX cycle; or information for indicating that the length of the long DRX cycle is set to 0; For information indicating the length of the long DRX cycle, the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; or the information indicating the value of the inactive state timer, the inactive timer The value is greater than the value of the inactive state timer indicated by the first DRX parameter information; or a letter indicating the value of the duration timer The value of the duration timer is greater than the value of the duration timer indicated by the
  • the request message is specifically used to indicate that the discontinuous reception DRX capability of the communication device is not supporting DRX
  • the first message is specifically used to indicate that the communication device does not perform DRX.
  • an embodiment of the present application provides a computer readable storage medium, where instructions are stored, and when the instructions are invoked to be executed, the first device or the second device may be configured to perform the foregoing first or second aspect.
  • the embodiment of the present application provides a computer program product, when the computer program product is run by a computer, the first device or the second device may be configured to perform the method embodiment of the first aspect or the second aspect.
  • the embodiment of the present application provides a chip, which may be coupled to a transceiver, and is used by the first device or the second device to implement the method embodiment and method embodiment of the first aspect or the second aspect.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a new air interface scenario according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a communication device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a DRX cycle according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of a method for reducing data reception delay according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of another method for reducing data reception delay according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart of another method for reducing data reception delay according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart of another method for reducing data reception delay according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic flowchart diagram of another communication device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • At least one refers to one, or more than one, including one, two, three, and more.
  • Carrying may mean that a message is used to carry certain information or data, or it may mean that a message is composed of certain information and signaling.
  • An embodiment of the present application provides a method for reducing a data receiving delay.
  • a user equipment sends a request message to a network device, where the request message is used by the network device to send a first message to the user equipment after receiving the request message. Therefore, after receiving the first message, the user equipment can extend the activation state, thereby realizing the extension of the activation state of the UE during the DRX transmission, thereby reducing the transmission delay of the DRX transmission.
  • FIG. 1 is a schematic structural diagram of a wireless communication system 100 according to an embodiment of the present application.
  • the wireless communication system 100 includes a communication device 101 and a network device 102.
  • the wireless communication system 100 includes, but is not limited to, the following communication system: global system of mobile communication (GSM), code division multiple access (CDMA) IS-95, Code division multiple access (CDMA) 2000, time division-synchronous code division multiple access (TD-SCDMA), wideband code division multiple access (WCDMA), Time division duplexing-long term evolution (TDD LTE), frequency division duplexing-long term evolution (FDD LTE), long term evolution-advanced (long term evolution-advanced, LTE-advanced), personal handy-phone system (PHS), wireless fidelity (WiFi) as defined by the 802.11 series of protocols, and next-generation 5G mobile communication systems (5th-generation, fifth-generation mobile Communication system) or New Radio (NR) communication system, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • CDMA Code division multiple access
  • TD-SCDMA time division-synchronous code division multiple access
  • WCDMA wideband code division multiple access
  • the communication device 101 may be a user equipment UE, for example, may be a terminal, a mobile station (MS), a mobile terminal, etc., and the UE can be connected to a network side device of one or more communication systems.
  • the communication is performed and the network service provided by the network side device is accepted, and the network side device here includes, but is not limited to, the network side device 102 illustrated.
  • the UE in the embodiment of the present application may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., and the UE may also be portable, pocket-sized, handheld, built-in, or in-vehicle.
  • Mobile device may also be a communication chip with a communication module.
  • the communication device 101 may also be a communication device such as a base station or a relay station managed by the network device 102.
  • the communication device may receive DRX parameter information sent by the network device 102 and perform DRX according to the DRX parameter information.
  • the network side device 102 may include a base station, or a base station and a radio resource management device for controlling the base station, etc., and the base station may be a relay station (relay device), an access point, an in-vehicle device, a wearable device, and a future 5G network.
  • a base station or a base station in a public land mobile network (PLMN) network, such as a new air interface base station, is not limited in this embodiment.
  • the NR scenario herein may include a core network 201 of the NR, such as a new radio new radio access technology core. , NR_newRAT-Core), the NR scenario may also include an access network 202 for the new air interface.
  • the functional entity for implementing the method for reducing data reception delay involved in the embodiment of the present application is a network device and a user equipment in an NR scenario.
  • the communication device 101 involved in the embodiment of the present application may include a user equipment connected to the network device connected to the new air interface access network 202, such as the user equipment 203, and the user equipment 203 is connected to the network device 204 through a wireless link.
  • the network device 204 may be a network device in the new air interface access network 202.
  • the communication device 101 involved in the embodiment of the present application may further include a user equipment connected to the relay, such as the user equipment 205, where the user equipment 205 is in the middle. Following device 206 connection, relay device 206 is coupled to network device 204 via a relay link.
  • the network device 102 involved in the embodiment of the present application may be the network device 204 in the new air interface access network 202 or the relay device 206 connected to the network device 204.
  • the method for reducing the data receiving delay provided by the embodiment of the present application may be extended to extend the activation state of the relay device 206, thereby being implemented.
  • the relay device 206 can also be used as the communication device 101 according to the embodiment of the present application.
  • the communication device 101 may include a mobile phone, a tablet computer, a smart car, a sensing device, an Internet of Things (IOT) device, a CPE, etc., a relay station, and the like.
  • IOT Internet of Things
  • the LTE scenario may be applied to an LTE scenario, and the LTE scenario may include a core network of an LTE air interface, such as a radio access technology core (RAT-Core), and the LTE scenario may also include LTE. Air interface access network.
  • the functional entity for implementing the method for reducing the data reception delay involved in the embodiment of the present application is a network device in an LTE scenario and a user equipment connected to a network device in the LTE air interface access network.
  • the user equipment 102 involved in the embodiment of the present application may be an eNB, a new radio eNB, a transmission and reception point (TRP), a macro base station, a micro base station, a high frequency base station, and an LTE asteroid.
  • the network device may be an eNB, and the eNB performs the functions involved in the network device in the present invention, or the network device is a combination of an eNB and a TRP, such as the network device in the present invention completed by the eNB.
  • the resource configuration function is implemented by the TRP, and the present invention is not limited thereto.
  • the communication device 101 can connect to the network device 102 and accept the network device 102 to configure the DRX communication device. For example, mobile phones, tablets, smart cars, sensing devices, IOT devices, CPE, etc., relay stations, and the like.
  • the communication device 101 provided by the embodiment of the present application may have the structure shown in FIG. 3, where the UE herein may be a UE that supports 5G and/or 4G communication.
  • the communication device 101 can include a processor 301, a transceiver 302.
  • the processor 301 can be used by the communication device 101 to implement the steps involved in the communication device 101 in the method provided by the embodiment of the present application, for example, can be used to extend the duration of the communication device 101 in an active state; the transceiver 302 can be coupled to the antenna 303.
  • the communication device 101 can also include a memory 304 in which are stored computer programs, instructions, and the memory 304 can be coupled to the processor 301 and/or the transceiver 302 for supporting the processor 301 to invoke a computer program in the memory 304,
  • the instructions are used to implement the steps involved in the communication device 101 in the method provided by the embodiment of the present application.
  • the memory 304 may also be used to store data related to the embodiment of the method of the present application, for example, for storing the support transceiver 302 to implement the interaction. Data, instructions.
  • a network device 102 provided by an embodiment of the present application may have a structure as shown in FIG. According to FIG. 4, network device 102 can include a processor 401, a transceiver 402.
  • the processor 401 can be used by the network device 102 to implement the steps involved in the network device 102 in the method provided by the embodiment of the present application.
  • the network device 102 can be used to extend the first message that the network device 102 needs to send to the communication device 101.
  • the transceiver 402 It may be coupled to antenna 403 for supporting network device 102 to interact, for example, for network device 102 to receive a request message sent by communication device 101, and for network device 102 to transmit a first message to communication device 101.
  • the network device 102 may further include other interfaces 404 for supporting the network device 102 to interact by wire.
  • the other interface 404 may be a fiber link interface, an Ethernet interface, a copper interface, or the like.
  • the network device 102 can also include a memory 405 in which computer programs, instructions can be stored, and the memory 405 can be coupled to the processor 401, the transceiver 402, and other interfaces 404 for supporting the processor 401 in calling the memory 403.
  • the computer program the instructions to implement the steps involved in the network device 102 in the method provided by the embodiment of the present application; in addition, the memory 405 can also be used to store data related to the embodiment of the method of the present application, for example, for storing the support transceiver 402 and / Or other interface 404 implements the data, instructions necessary for interaction.
  • the value of the duration timer and the value of the inactivity timer may be indicated by a slot or a number of symbols; the value of the duration timer may be used to indicate that the communication device remains in the active state after entering the active state.
  • the duration, the value of the inactive state timer may be used to indicate the duration of the active state of the communication device after receiving the scheduling signaling of the physical downlink control channel (PDCCH); when the UE performs DRX according to the DRX parameter information, A schematic diagram of the DRX cycle is shown in FIG. 5. When performing DRX, the UE turns on the receiver only when necessary.
  • PDCCH physical downlink control channel
  • DRX is divided into idle state DRX and connected state DRX.
  • C-DRX (C-DRX, which is the DRX in the RRC connected state) refers to the DRX feature when the UE is in the RRC connected state.
  • the C-DRX is implemented by monitoring the PDCCH, and the UE (although in the connected state)
  • the UE still enters the sleep state according to the DRX periodically, and the base station considers that the UE is in a sleep state; the base station does not schedule data for the UE in the sleep state, and the UE in the sleep state does not receive the PDCCH; (including the voice service, the UE also performs DRX); the base station only sends the PDCCH to the UE for scheduling when the UE is in the active state (including the time indicated by the on Duration Timer, we define the wake-up window), and the UE also receives the PDCCH sent by the base station in the wake-up window; In the Long DRX cycle window, the UE is in a sleep state except for the on Duration Timer.
  • the base station does not send the PDCCH to the UE for scheduling.
  • the UE can be in the sleep state except for the time indicated by on duration tiemr. If the UE sends an SR within the long cycle, the UE is in a awake state. The UE starts the timing of the persistent timer each time it enters the active state, and the UE remains in the active state before the duration timer expires (the timing timeout means that the timer count reaches the value configured by the UE), so that the UE can perform the UE.
  • the UE receives downlink data and signaling; when the duration of the timer expires, the UE determines whether the inactivity timer is in the timing state, and if the inactivity timer is not in the timing state (the timing is not started or the timeout has expired), the UE may end.
  • the active state enters the sleep state of the DRX.
  • the UE If the inactive state timer is still in the timed state, the UE still needs to remain in the active state until the timeout of the inactive state timer expires, wherein the inactive state timer works,
  • the UE in the active state starts the timing of the inactive state timer every time the PDCCH scheduling signaling is received (or restarts the timing of the inactive state timer, that is, the inactive state timer that has been in the timed state restarts timing) .
  • the UE may configure a duration timer according to the number of time slots or the number of symbols configured by the network side device 102.
  • the number of time slots configured by the network device 102 for the UE's duration timer is 10, assuming that the current UE 102 is activated.
  • the bandwidth of the bandwidth part (BWP) is 1 millisecond (ms).
  • the duration of the timer from the start of the timer to the timeout is actually 1 ms.
  • the duration timer is If the timeout expires after 10 ms, it means that the UE has listened to 10 time slots of the currently activated BWP; for example, the number of symbols configured by the network device 102 for the UE's duration timer is 10, and the current UE activated BWP has a time slot length of 1 ms. If the time slot length of the BWP is seven times the symbol length, that is, the symbol length of the BWP is 0.143 ms, the actual timer duration from the start of the timer to the timing timeout is 1.43 ms, and the timeout occurs after the timer is executed for 1.43 ms. , indicating that the UE has listened to 10 symbols.
  • the configuration manner of the inactivity timer can be referred to the manner of configuring the persistent timer in the above example.
  • the method for reducing the data reception delay may include the steps shown in FIG. 6:
  • Step S101 The UE sends a request message to the network device 102, where the request message is used by the network device 102 to determine to send a first message to the UE, where the first message is used by the UE to determine the duration of the activation state when the DRX is discontinuously received.
  • Step S102 The network device 102 receives the request message sent by the UE.
  • Step S103 The network device 102 sends a first message to the UE:
  • Step S104 After receiving the first message, the UE lengthens the duration that the UE is in an active state.
  • the UE can actively send a request message to request to extend the activation state when DRX is performed. After receiving the first message sent by the network device 102, the UE can extend the duration of the activation state of the lower transmission delay, thereby Reduce the transmission delay of the UE.
  • the extension of the UE activation state may be implemented by starting or restarting (resetting) the timing of the UE's inactive state timer, specifically, if the UE's current inactivity timer is in the timing state.
  • the UE may reset the inactivity timer to restart the inactivity timer; if the UE's current inactivity timer is not in operation, the UE may cause the inactivity timer to start timing.
  • the UE may reduce the transmission delay of the UE, but increase the power consumption of the UE, and enable the UE to determine that the UE enters the low-latency scenario before performing the step shown in S101 above, and/or determine that the UE uses the low-latency service. Therefore, the UE can be prevented from performing the method of reducing the data reception delay according to the method for reducing the data reception delay in the case that the UE does not enter the low-latency scenario and does not use the low-latency service, thereby reducing the power consumption of the UE.
  • the low-latency scenario here includes, but is not limited to, an application scenario in which the UE enters a red packet, robs a train ticket, and performs an online game.
  • the UE needs to be in a low transmission delay state for a long time; Including, but not limited to, calls used by the UE, virtual reality (VR), augmented reality (AR), or ultra-reliable low latency communication (URLLC).
  • VR virtual reality
  • AR augmented reality
  • URLLC ultra-reliable low latency communication
  • the UE in step S101 sends a request message to the network device 102, including but not limited to one or more of the following: the UE sends a request message to the network device 102 and the request message is successfully sent; the UE prepares to the network device 102. Sending a request message, the request message has not been successfully sent; the UE has triggered the sending of the request message, and the request message has not been successfully sent.
  • the UE may receive DRX parameter information configured by the network device 102 for the UE, and perform DRX according to the DRX parameter information.
  • the network device 102 may send the first DRX parameter information to the UE, where the UE configures at least one of the following according to the first DRX parameter information: a long DRX cycle, an inactive state timer, and a short cycle.
  • a timer DRX short cycle timer
  • HARQ hybrid automatic repeat request
  • RTT timer hybrid automatic repeat request
  • DRX retransmission timer On Duration Timer duration timer.
  • the UE may further perform the step shown in S101 before determining that the duration timer and/or the inactivity timer expired by the UE is timed out, so that the UE may be prevented from extending the activation state according to the method shown in steps S101 to S104.
  • the sleep state occurs due to the duration timer and the inactivity timer expired.
  • the UE may determine that the duration timer maintained by itself does not time out, and/or determine that the inactive state timer maintained by itself does not time out; or, the UE may also determine the duration timer maintained by itself.
  • the step shown in S101 is performed; or the UE may also be in the inactive state timer maintained by itself or not. In the case of being in the timed state and determining that the continuous timer maintained by itself has not timed out, the step shown in S101 is performed.
  • the embodiment of the present application does not limit the UE to perform the step shown in S101 after determining that the duration timer and/or the inactivity timer of the self-maintenance timer expires, for example, even if the UE has determined the duration timer and the inactive state timer.
  • the timer of the device times out, and the UE can still perform the steps shown in the above S101 to reduce the transmission delay.
  • the UE may perform the step shown in S101 if it is determined that the duration of the duration timer has expired is less than N times the duration indicated by the value of the UE configured for the duration timer.
  • N may be 3, 2, or 1.5; the UE may also determine, after the inactivity timer, that the duration of the inactivity timer has expired is less than the duration of the timer represented by the value of the UE configured for the inactive timer. In the case of multiples, the steps shown in S101 are performed, where N may be 3, 2 or 1.5. In the above manner, even if the timer of the persistent timer and/or the inactivity timer expires, the UE can be activated for a period of time after performing the steps shown in S101 to S104 to reduce the transmission delay.
  • the UE when sending a request message to the network device 102, the UE may generate uplink data through a higher layer (such as through an application layer), and trigger a modem of the UE based on the generated uplink data.
  • the module sends a request message; or the UE may trigger the modem module to send the request message through an application processor (AP) module; or the user equipment may directly send the request message through the modem module.
  • the UE may also trigger the sending of the SR by sending an IP (Internet Protocol) packet to the designated one or more servers.
  • IP Internet Protocol
  • the request message sent by the UE to the network device 102 is a scheduling request (SR), and the SR may be used to request an uplink resource, where the uplink resource may be used by the UE to send uplink data, and the network device 102 receives the uplink data.
  • the PDCCH scheduling signaling may be sent to the UE for indicating the uplink resource to the UE, and the UE may restart the timing of the inactive state timer after receiving the PDCCH scheduling signaling, thereby extending the time duration of the inactive timer. It is not active until the timer of the active state timer expires.
  • a method for reducing data reception delay may include the following steps:
  • Step 701 The network device 102 sends the first DRX information to the UE.
  • the first DRX information is used to configure the UE to perform DRX.
  • Step 702 After receiving the first DRX parameter information sent by the network device 102, the UE performs DRX according to the first DRX parameter information.
  • Step 703 The UE determines to enter the low-latency scenario and/or the UE determines to use the low-latency service. For example, after receiving the downlink red-packet data, the UE may determine to enter the low-latency red-strap scenario; the low-latency service may be the call. Business and so on;
  • Step 704 The UE determines that the duration of the duration timer and/or the inactivity timer maintained by itself is not timed out;
  • Step 705 The UE sends an SR to the network device 102.
  • Step 706 After receiving the SR sent by the UE, the network device 102 sends PDCCH scheduling signaling to the UE, and starts or restarts the inactive state timer maintained by the network device 102, and the timer of the inactive state timer maintained by the network device 102. Before the timeout, the network device 102 determines that the UE is in an active state;
  • Step 707 After receiving the PDCCH scheduling signaling sent by the network device 102, the UE starts or restarts the timing of the inactive state timer, and keeps the active state before the timeout of the inactive state timer expires, and then ends the process.
  • the UE may actively send the PDCCH scheduling signaling to the UE to indicate the uplink resource by sending the SR to the network device 102, and the UE may start (or restart) the inactive state by receiving the PDCCH scheduling signaling.
  • the timing of the timer is extended to prevent the UE from entering the DRX sleep state, and the downlink data cannot be received in the low latency scenario and/or the low latency service cannot be used.
  • the network device 102 can also start after sending the PDCCH scheduling signaling to the UE. (or restart) the timing of the inactive timer.
  • the UE may further carry the second DRX parameter information in the request message sent to the network device 102, where the second DRX parameter information is different from the first DRX parameter information previously received by the UE, and thus, step S103
  • the medium network device 102 may send a first message to the UE to indicate that the network device 102 agrees to configure the second DRX parameter information for the UE.
  • the first message may carry a specific bit, and the UE may receive the first message carrying the specific bit.
  • Performing DRX according to the second DRX parameter information; or the network device 102 may also carry the second DRX parameter information in the first message to indicate that the second DRX parameter information is agreed to be configured for the UE; in implementation, the network device 102 sends the message to the UE.
  • the first message may be a radio resource control (RRC) message;
  • the second DRX parameter information may indicate that the UE does not enter the sleep state, so that the UE may remain in the active state without entering the sleep state.
  • the second DRX parameter information may include at least one of the following: used to indicate that the UE does not Information for using the DRX mechanism, information for indicating that the UE does not enter the sleep mode during the long DRX cycle, for indicating that the long DRX cycle is set to 0; wherein the information indicating that the UE does not use the DRX mechanism may include indicating that the UE is not used Time information of the DRX mechanism, for example, information indicating that the UE does not use the DRX mechanism, including information indicating that the UE does not use the DRX mechanism within 60 minutes;
  • the second DRX parameter information may also indicate that the UE performs a shorter long DRX cycle.
  • the second DRX parameter information carries information indicating a length of the long DRX cycle, and the length of the long DRX cycle is less than the length.
  • the second DRX parameter information may also indicate that the UE performs a shorter short DRX cycle.
  • the second DRX parameter information carries information indicating a length of the short DRX cycle, and the length of the short DRX cycle is greater than the length.
  • the second DRX parameter information may also indicate that the UE increases the maximum timing of the duration timer and/or increases the maximum timing of the inactivity timer.
  • the second DRX parameter information carries information indicating a value of the duration timer, the value of the duration timer being greater than the value of the duration timer indicated by the first DRX parameter information; the second DRX parameter information may also be carried for Information indicating the value of the inactivity timer, the value of the inactivity timer being greater than the value of the inactivity timer indicated by the first DRX parameter information.
  • the network device 102 may further configure a new DRX for the UE.
  • the parameter information indicates that the UE performs DRX according to the new DRX parameter information by using the first message to extend the activation state of the UE, where the new DRX parameter information configured by the network device 102 for the UE is different from the second DRX parameter information.
  • the network device 102 may carry the third DRX parameter information in the first message in the execution of S103, so that after receiving the first message, the UE performs DRX according to the third DRX parameter information.
  • the first message sent by the network device 102 to the UE may be an RRC message.
  • the third DRX parameter information may indicate that the UE does not enter the sleep state, so that the UE may remain in the active state without entering the sleep state.
  • the third DRX parameter information may include at least one of the following: used to indicate that the UE does not Information for using the DRX mechanism, information for indicating that the UE does not enter the sleep mode during the long DRX cycle, for indicating that the long DRX cycle is set to 0; wherein the information indicating that the UE does not use the DRX mechanism may include indicating that the UE is not used Time information of the DRX mechanism;
  • the third DRX parameter information may also indicate that the UE performs a shorter long DRX cycle.
  • the third DRX parameter information carries information indicating a length of the long DRX cycle, where the length of the long DRX cycle is smaller than the first DRX parameter information. The length of the indicated long DRX cycle;
  • the third DRX parameter information may also indicate that the UE performs a longer short DRX cycle.
  • the third DRX parameter information carries information indicating a length of the short DRX cycle, where the length of the short DRX cycle is greater than the first DRX parameter information. The length of the indicated short DRX cycle;
  • the third DRX parameter information may also indicate that the UE increases the maximum timing of the duration timer and/or increases the maximum timing of the inactivity timer.
  • the third DRX parameter information carries information indicating a value of the duration timer, the value of the duration timer being greater than the value of the duration timer indicated by the first DRX parameter information; the third DRX parameter information may also be carried for Information indicating the value of the inactivity timer, the value of the inactivity timer being greater than the value of the inactivity timer indicated by the first DRX parameter information.
  • a method for reducing data reception delay may include the following steps:
  • Step 801 The network device 102 sends the first DRX information to the UE.
  • the first DRX information is used to configure the UE to perform DRX.
  • Step 802 After receiving the first DRX parameter information, the UE performs DRX according to the first DRX parameter information.
  • Step 803 The UE determines to enter the low-latency scenario and/or the UE determines to use the low-latency service. For example, after receiving the downlink red-packet data, the UE may determine to enter the low-latency red-strap scenario; the low-latency service may be the call. Business and so on;
  • Step 804 The UE determines that the duration of the sustained timer and/or the inactive state timer maintained by itself is not timed out;
  • Step 805 The UE sends a request message to the network device 102, where the request message carries the second DRX parameter information.
  • Step 806 After receiving the request message sent by the UE, the network device 102 sends a first message to the UE.
  • the first message may be used to indicate that the network device 102 agrees to configure the second DRX parameter information for the UE, or the first message.
  • the third DRX parameter information configured by the network device 102 for the UE may be carried;
  • Step 807 After receiving the first message sent by the network device 102, the UE performs DRX according to the second DRX parameter information. Alternatively, the UE performs DRX according to the third DRX parameter information carried in the first message.
  • the UE may request the network device 102 to configure the second DRX parameter information to reduce the duration of the data receiving delay.
  • the network device 102 may send the first message indicating the consent to the UE, or may be carried as the UE in the first message.
  • the third DRX parameter information is configured, and the UE may perform DRX according to the second DRX parameter information or the third DRX parameter information to implement extension of the activation state.
  • the UE may also notify the network device 102 that the DRX capability of the UE is not supporting DRX by using a request message sent to the network device 102.
  • the UE sends the DRX capability indicating that the UE is the network device 102 to The request message of the DRX is not supported, so that the UE can no longer enter the sleep state from the active state according to the first message sent by the network device 102, the first message can be used to indicate that the UE does not perform DRX, and the network device 101 can be in the UE.
  • the network device 102 After the first message is sent, it is determined that the UE does not enter the sleep state. Therefore, after receiving the downlink data that needs to be sent to the UE, the network device 102 can perform downlink transmission to the UE, so that it is no longer necessary to wait for the UE to enter the active state from the sleep state, which is reduced. Transmission delay.
  • the request message sent by the UE to the network device 102 may be a registration request for the UE to access the network, where the registration request may carry information indicating that the DRX capability of the UE is not supporting DRX;
  • the message may be specifically used to indicate that the UE does not configure at least one of the following: a long DRX cycle, a persistent timer, an inactive timer, a short cycle timer, a hybrid automatic repeat request loopback timer, or a retransmission timer Device.
  • the bit position corresponding to the DRX command MAC control element may be set to 0 to indicate that the DRX capability of the UE is not supporting DRX.
  • the UE may further determine that the time interval from the sending time of the first registration request has reached a preset duration, where the first registration request is a registration request previously sent by the UE, the first The DRX capability of the UE indicated by the registration request is different from the DRX capability indicated by the registration request sent by the UE to the network device 102 in step S101.
  • the first registration request may carry information indicating that the UE supports DRX.
  • the preset duration can be set to 24 hours, or 60 minutes, or ten minutes to avoid frequent modification of the UE's DRX capability.
  • a method for reducing data reception delay may include the following steps:
  • Step 901 The UE sends a first registration request to the network device 102, and carries information indicating that the UE supports DRX.
  • the UE may determine and record the time for sending the first registration request.
  • Step 902 After completing registration of the UE, the network device 102 sends the first DRX information to the UE; the first DRX information is used to configure the UE to perform DRX;
  • Step 903 After receiving the first DRX parameter information, the UE performs DRX according to the first DRX parameter information.
  • Step 904 The UE determines to enter the low-latency scenario and/or the UE determines to use the low-latency service. For example, after receiving the downlink red-packet data, the UE may determine to enter the low-latency red-strap scenario; the low-latency service may be the call. Business and so on;
  • Step 905 The UE determines that the duration of the duration timer and/or the inactivity timer maintained by itself does not time out;
  • Step 906 The UE sends a registration request to the network device 102, where the registration request carries information indicating that the UE does not support DRX.
  • Step 907 After receiving the registration request sent by the UE, the network device 102 sends a message to the UE for instructing the UE not to perform the DRX first message.
  • Step 908 After receiving the first message sent by the network device 102, the UE does not enter the sleep state.
  • the UE may request the network device 102 to perform re-registration of the UE, and instruct the UE not to perform DRX by re-registering the other network device 102, so that the UE no longer enters the sleep state from the active state, thereby realizing the extension of the activation state.
  • the UE performing DRX by using the first discontinuous reception DRX parameter information configured according to the network device, multiple times to the network within a preset first duration
  • the device 102 sends a scheduling request SR, which is used to request the network device 102 to configure an uplink resource for the UE.
  • the time interval between any two consecutive transmissions of the SR is determined according to the value of the inactive state timer, and the network device receives each time.
  • the PDCCH scheduling signaling is sent to the UE.
  • the UE starts or restarts the inactive state timer maintained by the UE, and remains in the inactive timer before the timer expires.
  • the activation state in an implementation, the network device 102 may also start or restart the timing of the inactive state timer maintained by itself after each time the PDCCH scheduling signaling is sent, and determine before the timeout of the inactive state timer expires.
  • the UE is in an active state.
  • the first duration may be a preset duration, for example, may be 1000 ms, 60 minutes, etc., and may be determined according to a low transmission delay scenario entered by the communication device or a delay requirement of the performed low transmission delay service. For a long time.
  • the scheduling request SR is sent to the network device 102 multiple times within a preset first duration to save communication device power consumption. .
  • the time interval may be determined according to the maximum timing of the inactive state timer, and the time interval when the SR is transmitted any two times may be different. For example, if the maximum value of the inactivity timer is 100 (the unit can be s seconds, ms milliseconds, or subframe, or slot time slot, or symbol), we take ms as an example.
  • the UE may send the SR once in the first time period after about 100 ms.
  • the UE may send an SR after 130 (ie, 100+30) ms, and then pass 70 again (ie, 100-30).
  • the next SR is sent; for example, the UE may send an SR after 120 (ie, 100+20) ms, or send an SR after 80 (ie, 100-20) ms.
  • the time interval may be less than the maximum timing of the inactive state timer.
  • the maximum timing of the inactive state timer is 100 ms
  • the user equipment may send an SR over a time interval of less than 100 ms, for example, the time interval is 80 or 90 ms, so that the UE can not enter the sleep state, or less time is in the sleep state.
  • the time interval may also be greater than or equal to the maximum timing of the inactive state timer.
  • the time interval may be greater than the maximum timing of the inactive state timer maintained by the communication device and less than N times the maximum timing, N being 3, 2, or 1.5.
  • the UE may wait for an interval of more than 100 ms and less than 300 ms to transmit one SR at a time; or, the UE sends an SR every time interval of more than 100 ms and less than 150 ms. Therefore, the UE may be in a waking state for a period of time in the DRX long cycle (excluding the time indicated by the on durationtimer) to reduce the receiving delay of the UE. Otherwise, the UE will be in the DRX long cycle (excluding the time indicated by the on durationtimer). Both are in a dormant state.
  • the time interval between the communication device transmitting the SRs in any two consecutive times is a preset duration, so that the communications device can send a scheduling request to the network device every preset time in the first time duration.
  • SR for example, if the maximum timing of the inactivity timer is 100 ms, the preset duration may take 80 ms, so that the communication device can transmit one SR every 80 ms in the first duration.
  • the embodiment of the present application further provides a method for extending a wake-up state, which is applied to a user equipment, including:
  • the user equipment determines that the on duration timer duration timer and/or the inactivity timer activity timer expires or times out or after a timeout;
  • the user equipment sends a scheduling request SR to the network device, where the continuation timer and/or the activity timer is configured by the network device for the user equipment, and the user equipment receives the physical downlink of the PDCCH sent by the network device.
  • Controlling channel information the user equipment restarts an activity timer; the user equipment is in an awake waking state within a time indicated by the activity timer and waits to receive PDCCH physical downlink control channel information sent by the base station; or
  • the user equipment initiates a registration process to the network device, and the capability of the UE is modified, and the DRX capability is set to be unsupported.
  • the user equipment sends a scheduling request to the network device, including:
  • the user equipment sends a scheduling request before or after the duration timer expires or times out;
  • the user equipment sends a scheduling request before or after the event timer expires or times out;
  • the user equipment sends a scheduling request to the network device, including:
  • the upper layer of the user equipment generates uplink data, and triggers the modem modem module to send the scheduling request;
  • the AP application processor module of the user equipment triggers the modem module to send the scheduling request
  • the modem module of the user equipment directly sends the scheduling request
  • the user equipment determines to enter the low latency mode, or the user equipment uses the low latency service, the user equipment sends a scheduling request to the network device.
  • the embodiment of the present application further provides a method for extending a wake-up state, which is applied to a user equipment, including:
  • the user equipment is in an active activation state time when the second DRX parameter information is used, and is greater than, when the first DRX parameter information is used, the user equipment is in an active activation state time;
  • the second DRX parameter information indicates at least one of the following information:
  • the DRX mechanism is not used, or the time when the DRX mechanism is not used, or the user equipment does not sleep during the Long DRX cycle long DRX cycle, or the long DRX cycle is set to 0, or is longer than the first DRX parameter information.
  • a DRX short cycle timer smaller than the DRX Short Cycle Timer in the first DRX parameter information.
  • the user equipment sends a request message to the network device, where the upper layer of the user equipment generates uplink data, and triggers the modem modem module to send the request message.
  • the AP application processor module of the user equipment triggers the modem module to send the request message
  • the modem module of the user equipment directly sends the request message
  • the user equipment determines to enter the low latency mode, or the user equipment uses the low latency service, the user equipment sends the request message to the network device.
  • a method for extending a wake-up state, applied to a network device includes:
  • the response message indicates that the base station agrees to the second DRX parameter information, or
  • the response message carries third DRX parameter information, where the third DRX parameter information is different from the second DRX parameter information;
  • the third DRX parameter information is different from the Long DRX cycle long DRX cycle, the On Duration Timer duration timer, the DRX Inactivity Timer activity timer, and the DRX Short Cycle Timer short cycle timing in the second DRX parameter information.
  • a method for extending a wake-up state, applied to a user equipment includes:
  • the user equipment initiates a second registration process, and the DRX capability is set to be unsupported.
  • the DRX capability setting in the second registration process is different from the setting of the DRX capability in the first registration process, and the first registration process is second. Initiated before the registration process.
  • the DRX capability is set to not supported, including:
  • the user equipment determines to enter the low latency mode, or the user equipment uses the low latency service, the user equipment initiates a second registration procedure, and the DRX capability is set to be unsupported.
  • the user equipment determines that the user equipment initiates a second registration procedure before or after a timeout or timeout of the on duration timer duration timer and/or the inactivity timer activity timer.
  • the embodiment of the present application further provides a communication device, which is used to implement the method described in the embodiment of the present application.
  • the communication device may have a structure as shown in FIG. 3 having the behavioral function of the communication device in the above method embodiment.
  • Fig. 10 shows a simplified schematic diagram of another possible design structure of the communication device involved in the above embodiment.
  • the communication device 1000 includes a transmitter 1001, a receiver 1002, a processor 1003, a memory 1004, and a modem processor 1005.
  • the transmitter 1001 is configured to send a request message to the network device, where the request message is used by the network device to determine that the communication device sends the first message, where the first message is used by the communications device to determine the duration of the activation state of the discontinuous reception DRX.
  • the processor 1003 is configured to extend the duration of the active state after the communication device receives the first message.
  • the processor 1003 can also be used to:
  • the maximum timing of the persistent timer is used to indicate the shortest duration of the active state after the communication device 1000 enters the active state, and the maximum timing of the inactive state timer is used to instruct the communication device 1000 to receive the physical downlink control channel PDCCH scheduling signaling. The length of time after which it remains active.
  • the processor 1003 is further configured to: determine that the communication device 1000 enters a low latency scenario, and/or determine that the communication device 1000 uses low latency traffic.
  • the request message is a scheduling request SR
  • the first message includes PDCCH scheduling signaling
  • the PDCCH scheduling signaling is used to indicate that the communication device resets the timing of the inactive state timer
  • the processor 1003 is specifically configured to: enable the inactive state timer to start timing, and maintain the active state before the timeout of the inactive state timer expires;
  • the processor 1003 is specifically configured to: restart the inactive state timer, and maintain the active state before the timeout of the inactive state timer expires;
  • the maximum timing of the inactive state timer is used to indicate the duration of the communication device 1000 remaining active after receiving the physical downlink control channel PDCCH scheduling signaling.
  • the receiver 1002 is configured to receive the first discontinuous reception DRX parameter information
  • the processor 1003 is further configured to: perform DRX according to the first DRX parameter information; the request message is specifically configured to request the network device to configure the second DRX parameter information for the communication device 1000, where the first message is specifically used to indicate that the network device agrees to configure the communication device
  • the second DRX parameter information is used by the processor 1003 to: extend the duration of the active state according to the second DRX parameter information;
  • the second DRX parameter information includes at least one of the following:
  • the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information;
  • the maximum timing of the inactivity timer is greater than the maximum timing of the inactivity timer indicated by the first DRX parameter information;
  • the maximum timing of the duration timer is greater than the maximum timing of the duration timer indicated by the first DRX parameter information;
  • the maximum timing of the short cycle timer is less than the maximum timing of the short cycle timer indicated by the first DRX parameter information.
  • the receiver 1002 is configured to receive the first discontinuous reception DRX parameter information
  • the processor 1003 is further configured to: perform DRX according to the first DRX parameter information
  • the request message is specifically used to request the network device as the communication device.
  • the 1000 sets the second DRX parameter information, where the first message includes the third DRX parameter information, and the processor 1003 is specifically configured to: the communication device 1000 extends the duration of the active state according to the third DRX parameter information;
  • the third DRX parameter information includes at least one of the following:
  • the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information;
  • the maximum timing of the inactivity timer is greater than the maximum timing of the inactivity timer indicated by the first DRX parameter information;
  • the maximum timing of the duration timer is greater than the maximum timing of the duration timer indicated by the first DRX parameter information;
  • the maximum timing of the short cycle timer is less than the maximum timing of the short cycle timer indicated by the first DRX parameter information.
  • the request message is specifically used to indicate that the discontinuous reception DRX capability of the communication device 1000 is not supporting DRX;
  • the first message is specifically used to indicate that the communication device 1000 does not perform DRX;
  • the processor 1003 is specifically configured to: keep the communication device 1000 in an active state.
  • the processor 1003 is further configured to: determine that a time interval from a sending time of the first registration request has reached a preset duration, where the first registration request is a registration request sent by the sender 1001 before sending the request message, The DRX capability of the communication device 1000 indicated by the first registration request is different from the DRX capability of the communication device 1000 indicated by the request message.
  • the request message includes a DRX command medium access control element, and the corresponding bit of the element is 0.
  • the communication device 1000 may generate uplink data through a higher layer (such as through an application layer), and trigger a modulation and demodulation processor 1005 of the communication device 1000 to send a request based on the generated uplink data.
  • the communication device 1000 may trigger the modem processor 1005 to transmit a request message through the application processor or the processor 1003; or, the communication device 1000 may directly transmit the request message through the modem processor 1005.
  • the transmitter 1001 may adjust (eg, analog transform, filter, amplify, upconvert, etc.) output samples to generate an uplink signal when transmitting a message, and the uplink signal may be transmitted to the above embodiment via an antenna.
  • the antenna can receive the downlink signal transmitted by the network device in the above embodiment.
  • Receiver 1002 conditions (eg, filters, amplifies, downconverts, digitizes, etc.) the downlink signals received from the antenna and provides input samples.
  • the encoder receives the traffic data and signaling messages to be transmitted on the uplink and processes (eg, formats, codes, and interleaves) the traffic data and the signaling messages.
  • the modulator further processes (e.g., symbol maps and modulates) the encoded service data and signaling messages and provides output samples.
  • the demodulator processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages that are sent to the communication device 1000.
  • the encoder, modulator, demodulator and decoder can be implemented by a synthesized modem processor 1005. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems).
  • the processor 1003 is further configured to perform DRX according to the first discontinuous reception DRX parameter information configured by the network device;
  • the transmitter 1001 is further configured to send the scheduling request SR to the network device multiple times in the first time period, where the interval between the SRs is continuously sent any two times, and the SR is used to request according to the value of the inactive state timer.
  • the processor 1003 is configured to start or restart the timing of the inactive state timer after receiving the physical downlink control channel PDCCH scheduling signaling, where the PDCCH scheduling signaling is used to indicate the uplink resource.
  • the time interval between any two consecutive consecutive transmissions of the SR is a preset duration
  • the transmitter 1001 is configured to send the scheduling request SR to the network device multiple times in the first duration, including:
  • the transmitter 1001 transmits a scheduling request SR to the network device every preset time length in the first time period.
  • the transmission time interval is smaller than the maximum timing indicated by the value of the inactivity timer maintained by the communication device; or, the transmission time interval is greater than the maximum timing, and the preset duration is less than N times of the maximum timing, and N is 3, 2 Or 1.5.
  • the processor 1003 is further configured to determine that the communication device 1000 enters a low-latency scenario before the transmitter 1001 sends the scheduling request SR to the network device multiple times within the first duration, and/or determine that the communication device 1000 is used. Low latency business.
  • the embodiment of the present application further provides a network device, which is used to implement the method in the embodiment of the present application.
  • the network device may have a structure as shown in FIG. 4, and has the behavior of the network device in the above method embodiment.
  • Fig. 11 shows a simplified schematic diagram of another possible design structure of the network device involved in the above embodiment.
  • the network device 1100 includes a transmitter 1101, a receiver 1102, a processor 1103, a memory 1104, and a modem processor 1105.
  • the receiver 1102 is configured to receive a request message, where the request message is used by the network device 1100 to determine to send a first message to the communications device, where the first message is used by the communications device to determine to extend the duration of the discontinuous receiving DRX activation state; 1101. The first message is sent to a communications device.
  • the request message is a scheduling request SR
  • the first message is a physical downlink control channel PDCCH information
  • the PDCCH information is used to indicate that the communication device starts the time of the inactive state timer maintained by the communication device
  • the inactive state timer is The maximum timing is used to indicate the length of time that the communication device remains active after receiving the physical downlink control channel PDCCH scheduling signaling.
  • the network device 1100 further includes a processor 1103; if the inactive state timer maintained by the network device 1100 is not in a timed state, the processor 1103 is configured to enable the inactive state timer to start timing, and The timing timer of the activation state timer starts the communication device to be in an active state; if the inactivity timer maintained by the network device 1100 is in the timing state, the processor 1103 is configured to cause the inactivity timer to restart timing and in the inactive state.
  • the timer's timing timeout initiates that the communication device is active.
  • the transmitter 1101 is further configured to send, to the communications device, first DRX parameter information, where the first DRX parameter information is used to indicate that the communications device performs DRX according to the first DRX parameter information; and the request message is specifically used to request the network device.
  • the 1100 is configured to configure the second DRX parameter information for the communications device, where the first message is specifically used to indicate that the network device 1100 agrees to configure the second DRX parameter information for the communications device; wherein the second DRX parameter information includes at least one of the following: The communication device does not use the information of the DRX mechanism; or information for indicating that the communication device does not enter the sleep state during the long DRX cycle; or information for indicating that the length of the long DRX cycle is set to 0; or for indicating the long DRX cycle Length information, the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; or the information indicating the maximum timing of the inactive state timer, the maximum timing of the inactive state timer is greater than the first The maximum timing of the inactive state timer indicated by the DRX parameter information; or the maximum timing of the continuous timer Information, the maximum timing of the duration timer is greater than the maximum timing of the duration timer indicated by
  • the transmitter 1101 is further configured to send, to the communications device, first DRX parameter information, where the first DRX parameter information is used to indicate that the communications device performs DRX according to the first DRX parameter information; and the request message is specifically used to request the network device.
  • the 1100 is configured to configure the second DRX parameter information for the communications device, where the first message includes the third DRX parameter information, where the first message is specifically used to indicate that the communications device performs the DRX according to the third DRX parameter information, where the third DRX parameter information includes the following At least one of: information indicating that the communication device does not use the DRX mechanism; or information indicating that the communication device does not enter the sleep state during the long DRX cycle; or information indicating that the length of the long DRX cycle is set to 0; or For indicating the length of the long DRX cycle, the length of the long DRX cycle is less than the length of the long DRX cycle indicated by the first DRX parameter information; or the information indicating the maximum timing of the inactive state timer, the inactive state timing The maximum timing of the device is greater than the maximum timing of the inactive state timer indicated by the first DRX parameter information; or The maximum timing information of the timer, the maximum timing of the duration timer is greater than the maximum timing
  • the request message is specifically used to indicate that the discontinuous reception DRX capability of the communication device is not supporting DRX
  • the first message is specifically used to indicate that the communication device does not perform DRX.
  • the transmitter 1101 may adjust (eg, analog transform, filter, amplify, upconvert, etc.) output samples to generate an uplink signal when transmitting a message, and the uplink signal may be transmitted to the above embodiment via an antenna.
  • the antenna can receive the downlink signal transmitted by the communication device in the above embodiment.
  • Receiver 1102 conditions (e.g., filters, amplifies, downconverts, digitizes, etc.) the downlink signals received from the antenna and provides input samples.
  • the encoder receives the traffic data and signaling messages to be transmitted on the uplink and processes (eg, formats, codes, and interleaves) the traffic data and the signaling messages.
  • the modulator further processes (e.g., symbol maps and modulates) the encoded service data and signaling messages and provides output samples.
  • the demodulator processes (e.g., demodulates) the input samples and provides symbol estimates.
  • the decoder processes (e.g., deinterleaves and decodes) the symbol estimate and provides decoded data and signaling messages that are sent to network device 1100.
  • the encoder, modulator, demodulator and decoder can be implemented by a synthesized modem processor 1105. These units are processed according to the radio access technology employed by the radio access network (e.g., access technologies of LTE and other evolved systems).
  • the transmitter 1101 may be further configured to send the first DRX parameter information to the communications device, where the communications device performs the DRX according to the first DRX parameter information;
  • the receiver 1102 is further configured to receive a scheduling request SR, where the SR is used to request an uplink resource, where the SR is sent by the communications device multiple times within the first duration;
  • the transmitter 1101 is further configured to send a physical downlink control channel PDCCH scheduling signaling to the communications device, where the PDCCH scheduling signaling is used to indicate an uplink resource.
  • the embodiment of the present application further provides a computer readable storage medium, where some instructions are stored, and when the instructions are executed, the first device or the second device may be configured to execute the foregoing method.
  • the readable storage medium is not limited, and may be, for example, a RAM (random-access memory), a ROM (read-only memory), or the like.
  • the embodiment of the present application further provides a computer program product, when the computer program product is run by a computer, the first device or the second device may be configured to perform the foregoing method embodiment and method implementation.
  • the embodiment of the present application further provides a chip, which may be coupled to a transceiver, and used in the first device or the second device to implement any one of the foregoing method embodiments and method embodiments.
  • a chip which may be coupled to a transceiver, and used in the first device or the second device to implement any one of the foregoing method embodiments and method embodiments.
  • the functions involved in the possible design are the following steps:
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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

Abstract

La présente invention concerne un procédé et un dispositif de réduction d'un retard de réception de données. Selon le procédé, un dispositif de communication envoie un message de demande à un dispositif de réseau; le dispositif de réseau peut envoyer un premier message au dispositif de communication après la réception du message de demande, le premier message étant utilisé pour que le dispositif de communication détermine de prolonger la durée d'un état activé pendant une DRX; et le dispositif de communication prolonge l'état activé après la réception du premier message. Le dispositif de communication peut effectuer une demande au dispositif de réseau afin de prolonger la durée de l'état activé, et prolonger l'état activé après la réception du premier message envoyé par le dispositif de réseau. Comme le retard de transmission de l'équipement utilisateur dans un état activé dans un mode de transmission DRX est inférieur au retard de transmission de l'équipement utilisateur dans un état de veille, le procédé permet de réduire le retard de transmission par la prolongation de la durée pendant laquelle le dispositif de communication est dans un état activé.
PCT/CN2019/084423 2018-04-26 2019-04-26 Procédé et dispositif de réduction de retard de réception de données WO2019206249A1 (fr)

Applications Claiming Priority (4)

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CN201810387682.4 2018-04-26
CN201810387682 2018-04-26
CN201810853387.3A CN110418433B (zh) 2018-04-26 2018-07-30 一种降低数据接收时延的方法及装置
CN201810853387.3 2018-07-30

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