WO2021243704A1 - Drx参数的切换方法、装置、设备及存储介质 - Google Patents

Drx参数的切换方法、装置、设备及存储介质 Download PDF

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Publication number
WO2021243704A1
WO2021243704A1 PCT/CN2020/094670 CN2020094670W WO2021243704A1 WO 2021243704 A1 WO2021243704 A1 WO 2021243704A1 CN 2020094670 W CN2020094670 W CN 2020094670W WO 2021243704 A1 WO2021243704 A1 WO 2021243704A1
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Prior art keywords
drx
parameter
search space
pdcch search
drx parameter
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PCT/CN2020/094670
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English (en)
French (fr)
Inventor
李海涛
胡奕
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Oppo广东移动通信有限公司
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Priority to CN202080100950.5A priority Critical patent/CN115606136A/zh
Priority to PCT/CN2020/094670 priority patent/WO2021243704A1/zh
Publication of WO2021243704A1 publication Critical patent/WO2021243704A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path

Definitions

  • This application relates to the field of wireless communication, and in particular to a method, device, device, and storage medium for switching Discontinuous Reception (DRX) parameters.
  • DRX Discontinuous Reception
  • the network device configures the DRX function for the terminal device, so that the terminal device can non-continuously monitor the Physical Downlink Control Channel (PDCCH) to save power for the terminal device.
  • PDCCH Physical Downlink Control Channel
  • the embodiments of the present application provide a method, device, device, and storage medium for switching DRX parameters, which can switch to more suitable DRX parameters at the same time when the terminal device switches the PDCCH search space.
  • the technical solution is as follows.
  • a method for switching DRX parameters includes:
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space
  • a method for switching DRX parameters includes:
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space
  • a device for switching DRX parameters including:
  • the switching module is configured to switch from the first PDCCH search space to the second PDCCH search space, and switch from the first DRX parameter to the second DRX parameter after receiving the PDCCH search space switching instruction;
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space
  • a device for switching DRX parameters including:
  • the sending module is configured to send a PDCCH search space switching instruction to a terminal device, and the terminal device is used to switch from the first PDCCH search space to the second PDCCH search space after receiving the PDCCH search space switching instruction, and from the first PDCCH search space One DRX parameter is switched to the second DRX parameter;
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space
  • a terminal device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the DRX parameter switching method as described in the foregoing aspect.
  • a network device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the DRX parameter switching method as described in the foregoing aspect.
  • a computer-readable storage medium is provided, and executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the above-mentioned aspects.
  • the switching method of DRX parameters is provided.
  • a computer-readable storage medium is provided, and executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to implement the above-mentioned aspects.
  • the switching method of DRX parameters is provided.
  • the terminal device After receiving the PDCCH search space switching instruction, the terminal device switches from the first PDCCH search space to the second PDCCH search space, and switches from the first DRX parameter to the second DRX parameter; enabling the terminal device to switch in the PDCCH search space
  • switch to a DRX parameter that is more adapted to the second DRX parameter, and the DRX parameter matches the actual service to be scheduled for transmission, thereby improving the power saving effect of the terminal device.
  • Fig. 1 is a block diagram of a communication system provided by an exemplary embodiment of the present application
  • Fig. 2 is a flowchart of a method for switching DRX parameters provided by an exemplary embodiment of the present application
  • Fig. 3 is a flowchart of a method for switching DRX parameters provided by an exemplary embodiment of the present application
  • Fig. 4 is a flowchart of a method for switching DRX parameters provided by an exemplary embodiment of the present application
  • FIG. 5 is a time-frequency schematic diagram of a method for switching DRX parameters provided by an exemplary embodiment of the present application
  • Fig. 6 is a flowchart of a method for switching DRX parameters provided by an exemplary embodiment of the present application
  • FIG. 7 is a time-frequency schematic diagram of a method for switching DRX parameters provided by an exemplary embodiment of the present application.
  • Fig. 8 is a block diagram of a device for switching DRX parameters provided by an exemplary embodiment of the present application.
  • Fig. 9 is a block diagram of a device for switching DRX parameters provided by an exemplary embodiment of the present application.
  • Fig. 10 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • the network equipment can configure the DRX function for the terminal equipment, so that the terminal equipment non-continuously monitors the PDCCH, in order to achieve the purpose of saving power for the terminal equipment.
  • Each MAC entity has a DRX configuration, and the DRX configuration parameters include at least one of the following parameters:
  • Discontinuous reception duration timer (drx-onDurationTimer): at the beginning of a DRX cycle, the duration of the terminal device waking up;
  • Discontinuous reception slot offset (drx-SlotOffset): the time delay for the terminal device to start drx-onDurationTimer;
  • Discontinuous reception inactivity timer (drx-InactivityTimer): when the terminal device receives a PDCCH indicating uplink initial transmission or downlink initial transmission, the terminal device continues to monitor the duration of the PDCCH;
  • Discontinuous reception downlink retransmission timer (drx-RetransmissionTimerDL): the longest duration for the terminal device to monitor the PDCCH indicating downlink retransmission scheduling. Except for the broadcast HARQ process, each downlink Hybrid Automatic Repeat Request (HARQ) process corresponds to a drx-RetransmissionTimerDL;
  • Discontinuous reception uplink retransmission timer (drx-RetransmissionTimerUL): the longest duration for the terminal device to monitor the PDCCH indicating uplink retransmission scheduling.
  • drx-RetransmissionTimerUL Discontinuous reception uplink retransmission timer
  • Discontinuous reception long cycle start offset (drx-LongCycleStartOffset): used to configure the long DRX cycle and the subframe offset at which the long DRX cycle and the short DRX cycle start;
  • Discontinuous reception short cycle (drx-ShortCycle): optional configuration;
  • Discontinuous reception short cycle timer (drx-ShortCycleTimer): the duration of the terminal device in the Short DRX cycle (and not receiving any PDCCH), which is an optional configuration;
  • Non-connected reception hybrid automatic repeat downlink round trip timer (drx-HARQ-RTT-TimerDL): the minimum waiting time required for terminal equipment to expect to receive the PDCCH indicating the downlink scheduling, except for the broadcast HARQ process for each downlink HARQ process Correspond to a drx-HARQ-RTT-TimerDL;
  • Non-connected reception hybrid automatic repeat uplink round-trip timer (drx-HARQ-RTT-TimerUL): The minimum waiting time that the terminal device expects to receive the PDCCH indicating the uplink scheduling.
  • Each uplink HARQ process corresponds to a drx-HARQ-RTT- TimerUL.
  • DRX Active Time includes the following situations:
  • any one of the 5 timers is running.
  • SR scheduling request
  • the terminal device has not received the initial cell radio network indication (CellRadio-Network Temporary Identifier, C-RNTI) scrambled PDCCH indication after successfully receiving the random access response. transmission.
  • C-RNTI CellRadio-Network Temporary Identifier
  • the terminal device monitors the PDCCH on the PDCCH search space configured by the network.
  • the network device can configure a maximum of 10 PDCCH search spaces for each DownLink Bandwidth Part (DL BWP) of the terminal device, and each PDCCH search space is associated with a control resource set (ControlResourceSet).
  • the network device can configure at most 3 control resource sets for each DL BWP of the terminal device.
  • the terminal device receives the PDCCH in the active transmission configuration indicator (Transmission Configuration Indicator, TCI) state of the control resource set corresponding to the search space.
  • TCI Transmission Configuration Indicator
  • FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • the communication system may include: an access network 12 and a terminal device 14.
  • the access network 12 includes several network devices 120.
  • the network device 120 may be a base station, which is a device deployed in an access network to provide wireless communication functions for terminal devices.
  • Base stations can include various forms of macro base stations, micro base stations, relay stations, access points, and so on.
  • the names of devices with base station functions may be different.
  • eNodeB or eNB In LTE systems, they are called eNodeB or eNB; in 5G NR systems, they are called gNodeB or gNB.
  • the description of "base station” may change.
  • the above-mentioned devices that provide wireless communication functions for the terminal device 14 are collectively referred to as network devices.
  • the terminal device 14 may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices or other processing devices connected to a wireless modem, as well as various forms of user equipment, and mobile stations (Mobile Station, MS). , Terminal device and so on.
  • the network device 120 and the terminal device 14 communicate with each other through a certain air interface technology, such as a Uu interface.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE Frequency Division Duplex Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiMAX Worldwide Interoperability for Microwave Access
  • WLAN wireless local area networks
  • WiFi wireless fidelity
  • next-generation communication systems or other communication systems, etc.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • Fig. 2 shows a flowchart of a method for switching DRX parameters provided by an exemplary embodiment of the present application.
  • the method is applied to the communication system shown in FIG. 1 as an example.
  • the method includes:
  • Step 202 The network device sends a PDCCH search space switching instruction to the terminal device;
  • network equipment can use different PDCCH search spaces. For example, for delay-sensitive services, the network device uses the first PDCCH search space that is denser in time domain configuration. When the network equipment determines that there is no scheduling requirement for some services, the PDCCH search space corresponding to these services will not schedule the PDCCH temporarily. At this time, the network device instructs the terminal device to switch to the second PDCCH search space for monitoring, and the position required to be monitored in the second PDCCH search space is less than the position required to be monitored in the first PDCCH search space.
  • the network device When the terminal device is required to switch the PDCCH search space, the network device sends a PDCCH search space switching instruction to the terminal device.
  • the PDCCH search space switching instruction is carried in Downlink Control Information (DCI) signaling or Medium Access Control Control Element (MACCE) signaling.
  • DCI Downlink Control Information
  • MACCE Medium Access Control Control Element
  • the PDCCH search space switching instruction carries an index of the second PDCCH search space.
  • Step 204 After receiving the PDCCH search space switching instruction, the terminal device switches from the first PDCCH search space to the second PDCCH search space, and switches from the first DRX parameter to the second DRX parameter;
  • the first PDCCH search space is the PDCCH search space used by the terminal equipment before handover; the second PDCCH search space is the PDCCH search space used by the terminal equipment after the handover.
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space.
  • the terminal device after receiving the PDCCH search space switching instruction, switches from the first PDCCH search space to the second PDCCH search space, and switches from the first DRX parameter to the second DRX.
  • Parameter enables the terminal device to switch to the DRX parameter more adapted to the second DRX parameter in the switching scenario of the PDCCH search space, the DRX parameter matches the actual service to be scheduled for transmission, and improves the power saving effect of the terminal device .
  • step 204 there are at least two different ways to determine the second PDCCH search space in step 204:
  • the network device sends a DRX configuration switching instruction to the terminal device, and the terminal device determines the second DRX parameter according to the DRX configuration switching instruction, as shown in Figure 3 below.
  • the network device sends the corresponding relationship to the terminal device.
  • the corresponding relationship includes the corresponding relationship between multiple pairs of PDCCH search spaces and DRX parameters.
  • the terminal device switches to the second PDCCH search space, it determines by itself according to the DRX configuration switching instruction
  • the second DRX parameter is shown in Figure 5 below.
  • Fig. 3 shows a flowchart of a method for switching DRX parameters provided by another exemplary embodiment of the present application.
  • the method is applied to the communication system shown in FIG. 1 as an example.
  • the method includes:
  • Step 301 The network device sends a PDCCH search space switching instruction to the terminal device;
  • network equipment can use different PDCCH search spaces. For example, for delay-sensitive services, the network device uses the first PDCCH search space that is denser in time domain configuration. When the network equipment determines that there is no scheduling requirement for some services, the PDCCH search space corresponding to these services will not schedule the PDCCH temporarily. At this time, the network device instructs the terminal device to switch to the second PDCCH search space for monitoring, and the position required to be monitored in the second PDCCH search space is less than the position required to be monitored in the first PDCCH search space.
  • the network device When the terminal device is required to switch the PDCCH search space, the network device sends a PDCCH search space switching instruction to the terminal device.
  • the PDCCH search space switching instruction is carried in DCI signaling or MACCE signaling.
  • the PDCCH search space switching instruction carries an index of the second PDCCH search space.
  • Step 302 After receiving the PDCCH search space switching instruction, the terminal device switches from the first PDCCH search space to the second PDCCH search space;
  • the terminal device stores multiple sets of PDCCH search spaces. After receiving the PDCCH search space switching instruction, switch from the first PDCCH search space to the second PDCCH search space according to the instruction of the PDCCH search space switching instruction.
  • the terminal device reads an index in the PDCCH search space switching instruction, where the index is used to uniquely identify the second PDCCH search space among multiple PDCCH search spaces; the second PDCCH search space is determined according to the index. Switch the PDCCH search space used by itself from the first PDCCH search space to the second PDCCH search space. That is, the PDCCH is monitored at the time-frequency position indicated by the second PDCCH search space.
  • Step 303 The network device sends a DRX configuration switching instruction to the terminal device;
  • the PDCCH search space switching command and the DRX configuration switching command can be sent at the same time, or the PDCCH search space switching command can be sent before the DRX configuration switching command (but at a shorter interval), or the PDCCH search space switching command can be sent after the DRX configuration switching command (But the interval is shorter).
  • the PDCCH search space switching command and the DRX configuration switching command can be carried in the same signaling and sent.
  • the DRX configuration switching command is sent separately as an example.
  • the DRX configuration switching instruction carries an index, and the index is used to uniquely identify the second DRX parameter among multiple sets of DRX parameters.
  • the DRX configuration switching instruction is carried in DCI signaling or MACCE signaling.
  • Step 304 When receiving the DRX configuration switching instruction, the terminal device reads the index in the DRX configuration switching instruction, where the index is used to uniquely identify the second DRX parameter among multiple sets of DRX parameters;
  • Step 305 The terminal device switches from the first DRX parameter to the second DRX parameter according to the index;
  • the terminal device determines the second DRX parameter from the multiple sets of DRX parameters according to the index, and switches from the first DRX parameter to the second DRX parameter.
  • Step 306 The terminal device stops all or part of the timers related to the first DRX parameter.
  • a timer related to the first DRX parameter may be running in the terminal device. At this time, the terminal device stops all or part of the timers related to the first DRX parameter.
  • the terminal device stops the discontinuous reception duration timer (drx-onDurationTimer) and the discontinuous reception inactivity timer (drx-InactivityTimer) related to the first DRX parameter.
  • first process of switching the PDCCH search space of the terminal device and the second process of switching the DRX parameters can be performed at the same time, or the first process is performed before the second process (with a shorter interval), or the second process is performed at the same time. Execute before the first process (shorter interval).
  • the terminal device uses the first DRX parameter to monitor on the first PDCCH search space in the initial situation.
  • the first DRX parameter includes: the DRX cycle is DRX cycle 1, and the duration (Onduration ) Is the duration 1.
  • the network device uses DCI signaling on the PDCCH channel to send a PDCCH search space switching instruction and a DRX parameter switching instruction to the terminal device.
  • the terminal device uses the second DRX parameter to monitor on the second PDCCH search space.
  • the second DRX parameter includes: the DRX cycle is DRX cycle 2 and the duration is duration 2.
  • the method provided in this embodiment sends a DRX configuration switching instruction to a terminal device through a network device.
  • the DRX configuration switching instruction carries an index of the second DRX parameter, and the terminal device switches from the first DRX parameter to the index according to the index.
  • the second DRX parameter since the index of the second DRX parameter is dynamically determined by the network device according to the service scheduling scenario, the calculation amount of the terminal device can be saved, so as to better save the power of the terminal device.
  • Fig. 5 shows a flowchart of a method for switching DRX parameters provided by another exemplary embodiment of the present application.
  • the method is applied to the communication system shown in FIG. 1 as an example.
  • the method includes:
  • Step 501 The network device sends first configuration information to the terminal device, where the first configuration information is used to configure the corresponding relationship;
  • the correspondence relationship includes the correspondence relationship between multiple pairs of PDCCH search spaces and DRX parameters.
  • the correspondence relationship includes at least: the correspondence relationship between the second PDCCH search space and the second DRX parameter.
  • the corresponding relationship is shown in Table 1 below:
  • Index of PDCCH search space Index of DRX parameter 000 (indicating search space 0) 00 (represents DRX parameter group 0) 001 (represents search space 1) 01 (represents DRX parameter group 1)
  • the first configuration information is carried in RRC configuration signaling.
  • Step 502 The terminal device receives the first configuration information
  • the terminal device receives the first configuration information, and reads the corresponding relationship in the first configuration information.
  • the terminal device stores the corresponding relationship.
  • Step 503 The network device sends a PDCCH search space switching instruction to the terminal device;
  • network equipment can use different PDCCH search spaces. For example, for delay-sensitive services, the network device uses the first PDCCH search space that is denser in time domain configuration. When the network equipment determines that there is no scheduling requirement for some services, the PDCCH search space corresponding to these services will not schedule the PDCCH temporarily. At this time, the network device instructs the terminal device to switch to the second PDCCH search space for monitoring, and the monitoring position required by the second PDCCH search space is less than the monitoring position required by the first PDCCH search space.
  • the network device When the terminal device is required to switch the PDCCH search space, the network device sends a PDCCH search space switching instruction to the terminal device.
  • the PDCCH search space switching instruction is carried in DCI signaling or MACCE signaling.
  • the PDCCH search space switching instruction carries an index of the second PDCCH search space.
  • Step 504 After receiving the PDCCH search space switching instruction, the terminal device switches from the first PDCCH search space to the second PDCCH search space;
  • the terminal device stores multiple sets of PDCCH search spaces. After receiving the PDCCH search space switching instruction, switch from the first PDCCH search space to the second PDCCH search space according to the instruction of the PDCCH search space switching instruction.
  • the terminal device reads an index in the PDCCH search space switching instruction, where the index is used to uniquely identify the second PDCCH search space among multiple PDCCH search spaces; the second PDCCH search space is determined according to the index. Switch the PDCCH search space used by itself from the first PDCCH search space to the second PDCCH search space. That is, the PDCCH is monitored at the time-frequency position indicated by the second PDCCH search space.
  • Step 505 The terminal device determines the second DRX parameter corresponding to the second PDCCH search space in the corresponding relationship; the corresponding relationship includes the corresponding relationship between the second PDCCH search space and the second DRX parameter;
  • the terminal device reads the index of the second PDCCH search space, and queries the index of the second DRX parameter according to the index of the second PDCCH search space. According to the index of the second DRX parameter, the second DRX parameter corresponding to the second PDCCH search space is determined.
  • the terminal device determines the reference PDCCH search space of the multiple sets of PDCCH search spaces as the second DRX parameter.
  • Step 506 The terminal device is switching from the first DRX parameter to the second DRX parameter corresponding to the second PDCCH search space;
  • Step 507 The terminal device stops all or part of the timers related to the first DRX parameter.
  • a timer related to the first DRX parameter may be running in the terminal device. At this time, the terminal device stops all or part of the timers related to the first DRX parameter.
  • the terminal device stops the discontinuous reception duration timer (drx-onDurationTimer) and the discontinuous reception inactivity timer (drx-InactivityTimer) related to the first DRX parameter.
  • the first process of switching the PDCCH search space of the terminal device and the second process of switching the DRX parameters can be performed at the same time, or the first process is performed before the second process (with a shorter interval), or the second process is performed at the same time.
  • the first process is executed before (the interval is short), which is not limited in this application.
  • the terminal device uses the first DRX parameter to monitor on the first PDCCH search space in the initial situation.
  • the first DRX parameter includes: the DRX cycle is DRX cycle 1, and the duration (Onduration ) Is the duration 1.
  • the network device uses DCI signaling on the PDCCH channel to send a PDCCH search space switching instruction to the terminal device.
  • the terminal device uses the second DRX parameter to monitor on the second PDCCH search space.
  • the second DRX parameter includes: the DRX cycle is DRX cycle 2 and the duration is duration 2.
  • the terminal device determines the second DRX parameter corresponding to the second PDCCH search space by itself, which can reduce the number of network devices and terminals.
  • the amount of signaling between devices reduces air interface overhead.
  • the foregoing method further includes the following steps:
  • Step 702 The network device sends second configuration information to the terminal device, where the second configuration information is used to configure multiple sets of DRX parameters;
  • the network device sends radio resource control (Radio Resource Control, RRC) configuration information to the terminal device, where the RRC configuration information includes multiple sets of DRX parameters, also called multiple sets of DRX configuration (DRX-Config).
  • RRC Radio Resource Control
  • the multiple sets of DRX parameters refer to at least two sets of DRX parameters.
  • the multiple sets of DRX parameters include: reference DRX parameters and at least one set of newly added DRX parameters.
  • reference DRX parameters include: reference DRX parameters and at least one set of newly added DRX parameters.
  • the reference DRX parameter is a relatively basic set of DRX configuration, or a relatively common set of DRX configuration.
  • each parameter in the reference DRX parameter has a parameter value.
  • Each group of newly added DRX parameters includes one or more of the following parameters:
  • the parameter value of the missing parameter in the newly added DRX parameter is the same as the parameter value of the same parameter in the reference DRX parameter.
  • the second configuration information also carries indexes corresponding to multiple sets of DRX parameters one-to-one.
  • Step 704 The terminal device receives the second configuration information.
  • the terminal device receives the RRC configuration information sent by the network device to the terminal device.
  • the aforementioned multiple sets of DRX parameters are predefined or pre-configured.
  • the method provided in this embodiment configures multiple sets of DRX parameters for the terminal device through the network device, so that the terminal device can use different DRX parameters when switching between different PDCCH search spaces, which improves the power saving of the terminal device. Electric effect.
  • the steps executed by the terminal device can be individually implemented as the DRX parameter switching method on the terminal device side
  • the steps executed by the network device can be individually implemented as the DRX parameter switch method on the network device side.
  • the switching method can be individually implemented as the DRX parameter switching method on the terminal device side
  • Fig. 8 shows a block diagram of a device for switching DRX parameters provided by an exemplary embodiment of the present application.
  • the device can be implemented as a terminal device, or set in a terminal device, and the device includes:
  • the switching module 820 is configured to switch from the first PDCCH search space to the second PDCCH search space, and switch from the first DRX parameter to the second DRX parameter after receiving the PDCCH search space switching instruction;
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space
  • the switching module 820 is configured to switch from the first DRX parameter to the second DRX parameter when a DRX configuration switching instruction is received.
  • the switching module 820 is configured to read the index in the DRX configuration switching instruction when the DRX configuration switching instruction is received, and the index is used to The group of DRX parameters uniquely identifies the second DRX parameter; switching from the first DRX parameter to the second DRX parameter according to the index.
  • the DRX configuration switching instruction is carried in DCI signaling or MACCE signaling.
  • the switching module 820 is configured to determine the second DRX parameter corresponding to the second PDCCH search space in the corresponding relationship; the corresponding relationship includes all The correspondence between the second PDCCH search space and the second DRX parameter;
  • the device further includes:
  • the receiving module 840 is configured to receive first configuration information, where the first configuration information is used to configure the corresponding relationship.
  • the device further includes:
  • the receiving module 840 is configured to receive second configuration information, where the second configuration information is used to configure multiple sets of DRX parameters, and the multiple sets of DRX parameters include the first DRX parameter and the second DRX parameter.
  • the multiple sets of DRX parameters include:
  • the parameter value of the missing parameter in the newly added DRX parameter is the same as the parameter value of the same parameter in the reference DRX parameter.
  • the second configuration information also carries an index corresponding to the multiple sets of DRX parameters one-to-one.
  • the device further includes:
  • the stopping module 860 is configured to stop all or part of the timers related to the first DRX parameter.
  • the stop module is configured to stop drx-onDurationTimer and drx-InactivityTimer related to the first DRX parameter.
  • Fig. 9 shows a block diagram of a device for switching DRX parameters provided by an exemplary embodiment of the present application.
  • the device can be implemented as a network device, or set in a network device, and the device includes:
  • the sending module 920 is configured to send a PDCCH search space switching instruction to a terminal device, where the terminal device is used to switch from the first PDCCH search space to the second PDCCH search space after receiving the PDCCH search space switching instruction, and from The first DRX parameter is switched to the second DRX parameter;
  • the first DRX parameter corresponds to the first PDCCH search space
  • the second DRX parameter corresponds to the second PDCCH search space
  • the sending module 920 is configured to send a DRX configuration switching instruction to the terminal device, and the DRX configuration switching instruction is used to instruct to switch from the first DRX parameter to the terminal device.
  • the second DRX parameter is configured to send a DRX configuration switching instruction to the terminal device.
  • the DRX configuration switching instruction carries an index, and the index is used to uniquely identify the second DRX parameter among multiple sets of DRX parameters.
  • the DRX configuration switching instruction is carried in DCI signaling or MACCE signaling.
  • the sending module 920 is configured to send first configuration information to the terminal device, where the first configuration information is used to configure a corresponding relationship, and the corresponding relationship includes all The corresponding relationship between the second PDCCH search space and the second DRX parameter.
  • the sending module 920 is configured to send second configuration information to the terminal device, and the second configuration information is used to configure multiple sets of DRX parameters.
  • the DRX parameter includes the first DRX parameter and the second DRX parameter.
  • the multiple sets of DRX parameters include:
  • the parameter value of the missing parameter in the newly added DRX parameter is the same as the parameter value of the same parameter in the reference DRX parameter.
  • the second configuration information also carries an index corresponding to the multiple sets of DRX parameters one-to-one.
  • FIG. 10 shows a schematic structural diagram of a communication device (network device or terminal device) provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 101, a receiver 102, a transmitter 103, a memory 104, and a bus 105.
  • the processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.
  • the receiver 102 and the transmitter 103 may be implemented as a communication component, and the communication component may be a communication chip.
  • the memory 104 is connected to the processor 101 through a bus 105.
  • the memory 104 may be used to store at least one instruction, and the processor 101 is used to execute the at least one instruction to implement each step in the foregoing method embodiment.
  • the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.
  • the volatile or non-volatile storage device includes, but is not limited to: magnetic disks or optical disks, electrically erasable and programmable Read Only Memory (Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read -Only Memory, ROM), magnetic memory, flash memory, Programmable Read-Only Memory (PROM).
  • a computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the DRX parameter switching method performed by the terminal device or the DRX parameter switching method performed by the network device provided in the foregoing method embodiments.

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Abstract

本申请公开了一种DRX参数的切换方法、装置、设备及存储介质,涉及通信领域,所述方法包括:终端设备在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。

Description

DRX参数的切换方法、装置、设备及存储介质 技术领域
本申请涉及无线通信领域,特别涉及一种非连续接收(Discontinuous Reception,DRX)参数的切换方法、装置、设备及存储介质。
背景技术
在新空口(NewRadio,NR)系统中,网络设备为终端设备配置DRX功能,使终端设备能够非连续地监听物理下行控制信道(Physical Downlink Control Channel,PDCCH),以达到终端设备的省电目的。
发明内容
本申请实施例提供了一种DRX参数的切换方法、装置、设备及存储介质,可以在终端设备进行PDCCH搜索空间的切换时,同时切换至更为合适的DRX参数。所述技术方案如下。
根据本申请的一个方面,提供了一种DRX参数的切换方法,所述方法包括:
在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
根据本申请的一个方面,提供了一种DRX参数的切换方法,所述方法包括:
向终端设备发送PDCCH搜索空间切换指令,所述终端设备用于在接收到所述PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
根据本申请的一个方面,提供了一种DRX参数的切换装置,所述装置包括:
切换模块,用于在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
根据本申请的一个方面,提供了一种DRX参数的切换装置,所述装置包括:
发送模块,用于向终端设备发送PDCCH搜索空间切换指令,所述终端设备用于在接收到所述PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
根据本申请的一个方面,提供了一种终端设备,所述终端设备包括:处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置 为加载并执行所述可执行指令以实现如上述方面所述的DRX参数的切换方法。
根据本申请的一个方面,提供了一种网络设备,所述网络设备包括:处理器;与所述处理器相连的收发器;用于存储所述处理器的可执行指令的存储器;其中,所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的DRX参数的切换方法。
根据本申请的一个方面,提供了一种计算机可读存储介质,所述可读存储介质中存储有可执行指令,所述可执行指令由所述处理器加载并执行以实现如上述方面所述的DRX参数的切换方法。
根据本申请的一个方面,提供了一种计算机可读存储介质,所述可读存储介质中存储有可执行指令,所述可执行指令由所述处理器加载并执行以实现如上述方面所述的DRX参数的切换方法。
本申请实施例提供的技术方案至少包括如下有益效果:
通过终端设备在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;使得终端设备能够在PDCCH搜索空间的切换场景下,切换至与第二DRX参数更为适配的DRX参数,该DRX参数与实际待调度传输的业务相匹配,提高终端设备的省电效果。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请一个示例性实施例提供的通信系统的框图;
图2是本申请一个示例性实施例提供的DRX参数的切换方法的流程图;
图3是本申请一个示例性实施例提供的DRX参数的切换方法的流程图;
图4是本申请一个示例性实施例提供的DRX参数的切换方法的流程图;
图5是本申请一个示例性实施例提供的DRX参数的切换方法的时频示意图;
图6是本申请一个示例性实施例提供的DRX参数的切换方法的流程图;
图7是本申请一个示例性实施例提供的DRX参数的切换方法的时频示意图;
图8是本申请一个示例性实施例提供的DRX参数的切换装置的框图;
图9是本申请一个示例性实施例提供的DRX参数的切换装置的框图;
图10是本申请一个示例性实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施方式作进一步地详细描述。
DRX
在5G NR中,网络设备可以为终端设备配置DRX功能,使终端设备非连续地监听PDCCH,以达到终端设备省电的目的。每个MAC实体有一个DRX配置,DRX的配置参数包含如下参数中的至少一种:
非连续接收持续时间定时器(drx-onDurationTimer):在一个DRX周期的开始阶段,终 端设备醒来的持续时间;
非连续接收时隙偏移(drx-SlotOffset):终端设备启动drx-onDurationTimer的时延;
非连续接收不活动定时器(drx-InactivityTimer):当终端设备收到一个指示上行初传或者下行初传的PDCCH后,终端设备继续监听PDCCH的持续时间;
非连续接收下行重传定时器(drx-RetransmissionTimerDL):终端设备监听指示下行重传调度的PDCCH的最长持续时间。除广播HARQ进程之外的每个下行混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)进程对应一个drx-RetransmissionTimerDL;
非连续接收上行重传定时器(drx-RetransmissionTimerUL):终端设备监听指示上行重传调度的PDCCH的最长持续时间。每个上行HARQ进程对应一个drx-RetransmissionTimerUL;
非连续接收长周期开始偏移(drx-LongCycleStartOffset):用于配置长DRX周期,以及长DRX周期和短DRX周期开始的子帧偏移;
非连续接收短周期(drx-ShortCycle):为可选配置;
非连续接收短周期定时器(drx-ShortCycleTimer):终端设备处于Short DRX cycle(并且没有接收到任何PDCCH)的持续时间,为可选配置;
非连接接收混合自动重传下行往返定时器(drx-HARQ-RTT-TimerDL):终端设备期望接收到指示下行调度的PDCCH需要的的最少等待时间,除广播HARQ进程之外的每个下行HARQ进程对应一个drx-HARQ-RTT-TimerDL;
非连接接收混合自动重传上行往返定时器(drx-HARQ-RTT-TimerUL):终端设备期望接收到指示上行调度的PDCCH需要的最少等待时间,每个上行HARQ进程对应一个drx-HARQ-RTT-TimerUL。
如果终端设备配置了DRX,则终端设备需要在DRX Active Time监听PDCCH。DRX Active Time包括如下几种情况:
-drx-onDurationTimer,drx-InactivityTimer,drx-RetransmissionTimerDL,drx-RetransmissionTimerUL以及ra-ContentionResolutionTimer这5个定时器中的任何一个定时器正在运行。
-在PUCCH上发送了调度申请(Scheduling Request,SR)并处于等待状态。
-在基于竞争的随机接入过程中,终端设备在成功接收到随机接入响应后还没有接收到小区无线网络临时指示(CellRadio-Network Temporary Identifier,C-RNTI)加扰的PDCCH指示的一次初始传输。
PDCCH配置
终端设备在网络配置的PDCCH搜索空间上监听PDCCH。网络设备可以为终端设备的每个下行带宽部分(DownLink Bandwidth Part,DL BWP)配置最多10个PDCCH搜索空间,每个PDCCH搜索空间关联一个控制资源集(ControlResourceSet)。网络设备可以为终端设备的每个DL BWP配置最多3个控制资源集。终端设备在搜索空间对应的控制资源集的激活传输配置指示(Transmission Configuration Indicator,TCI)状态上接收PDCCH。
图1示出了本申请一个示例性实施例提供的通信系统的框图,该通信系统可以包括:接入网12和终端设备14。
接入网12中包括若干个网络设备120。网络设备120可以是基站,所述基站是一种部署在接入网中用以为终端设备提供无线通信功能的装置。基站可以包括各种形式的宏基站,微 基站,中继站,接入点等等。在采用不同的无线接入技术的系统中,具备基站功能的设备的名称可能会有所不同,例如在LTE系统中,称为eNodeB或者eNB;在5G NR系统中,称为gNodeB或者gNB。随着通信技术的演进,“基站”这一描述可能会变化。为方便本申请实施例中,上述为终端设备14提供无线通信功能的装置统称为网络设备。
终端设备14可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备,移动台(Mobile Station,MS),终端设备(terminal device)等等。为方便描述,上提到的设备统称为终端设备。网络设备120与终端设备14之间通过某种空口技术互相通信,例如Uu接口。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Freq终端设备ncy Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新无线(New Radio,NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、NR-U系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、下一代通信系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信以及车联网(Vehicle to everything,V2X)系统等。本申请实施例也可以应用于这些通信系统。
图2示出了本申请一个示例性实施例提供的DRX参数的切换方法的流程图。本实施例以该方法应用于图1所示的通信系统来举例说明。该方法包括:
步骤202,网络设备向终端设备发送PDCCH搜索空间切换指令;
针对不同的业务调度,网络设备可使用不同的PDCCH搜索空间。比如,对于时延敏感业务,网络设备使用时域配置上较为密集的第一PDCCH搜索空间。当网络设备判断一部分业务没有调度需求时,这些业务对应的PDCCH搜索空间暂时不会调度PDCCH。此时,网络设备指示终端设备切换到第二PDCCH搜索空间上进行监听,第二PDCCH搜索空间所需监听的位置少于第一PDCCH搜索空间所需监听的位置。
在需要终端设备切换PDCCH搜索空间时,网络设备向终端设备发送PDCCH搜索空间切换指令。可选地,PDCCH搜索空间切换指令携带在下行控制信息(DownlinkControlInformation,DCI)信令或媒体接入控制控制单元(Medium Access ControlControl Element,MACCE)信令中。
可选地,PDCCH搜索空间切换指令中携带有第二PDCCH搜索空间的索引。
步骤204,终端设备在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
第一PDCCH搜索空间是终端设备在切换前使用的PDCCH搜索空间;第二PDCCH搜索空间是终端设备在切换后使用的PDCCH搜索空间。
其中,第一DRX参数与第一PDCCH搜索空间对应,第二DRX参数与第二PDCCH搜索空间对应。
综上所述,本实施例提供的方法,通过终端设备在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;使得终端设备能够在PDCCH搜索空间的切换场景下,切换至与第二DRX参数更为适配的DRX参数,该DRX参数与实际待调度传输的业务相匹配,提高终端设备的省电效果。
在基于图2的可选实施例中,步骤204中的第二PDCCH搜索空间存在至少两种不同的确定方式:
第一,网络设备向终端设备发送DRX配置切换指令,终端设备根据DRX配置切换指令来确定第二DRX参数,如下图3所示。
第二,网络设备向终端设备发送对应关系,该对应关系包括多对PDCCH搜索空间和DRX参数之间的对应关系,终端设备在切换到第二PDCCH搜索空间后,自行根据DRX配置切换指令来确定第二DRX参数,如下图5所示。
图3示出了本申请另一个示例性实施例提供的DRX参数的切换方法的流程图。本实施例以该方法应用于图1所示的通信系统来举例说明。该方法包括:
步骤301,网络设备向终端设备发送PDCCH搜索空间切换指令;
针对不同的业务调度,网络设备可使用不同的PDCCH搜索空间。比如,对于时延敏感业务,网络设备使用时域配置上较为密集的第一PDCCH搜索空间。当网络设备判断一部分业务没有调度需求时,这些业务对应的PDCCH搜索空间暂时不会调度PDCCH。此时,网络设备指示终端设备切换到第二PDCCH搜索空间上进行监听,第二PDCCH搜索空间所需监听的位置少于第一PDCCH搜索空间所需监听的位置。
在需要终端设备切换PDCCH搜索空间时,网络设备向终端设备发送PDCCH搜索空间切换指令。可选地,PDCCH搜索空间切换指令携带在DCI信令或MACCE信令中。
可选地,PDCCH搜索空间切换指令中携带有第二PDCCH搜索空间的索引。
步骤302,终端设备在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间;
终端设备存储有多组PDCCH搜索空间。在接收到PDCCH搜索空间切换指令后,根据PDCCH搜索空间切换指令的指示,从第一PDCCH搜索空间切换至第二PDCCH搜索空间。
可选地,终端设备读取PDCCH搜索空间切换指令中的索引,该索引用于在多个PDCCH搜索空间中唯一标识第二PDCCH搜索空间;根据索引确定第二PDCCH搜索空间。将自身所使用的PDCCH搜索空间从第一PDCCH搜索空间切换至第二PDCCH搜索空间。也即在第二PDCCH搜索空间所指示的时频位置上监听PDCCH。
步骤303,网络设备向终端设备发送DRX配置切换指令;
PDCCH搜索空间切换指令和DRX配置切换指令可以同时发送,或PDCCH搜索空间切换指令可以在DRX配置切换指令之前发送(但间隔较短),或,PDCCH搜索空间切换指令 可以在DRX配置切换指令之后发送(但间隔较短)。
在同时发送的情况下,PDCCH搜索空间切换指令和DRX配置切换指令可以携带在同一个信令中发送。本实施例以DRX配置切换指令是单独发送的来举例说明。
可选地,DRX配置切换指令携带有索引,该索引用于在多组DRX参数中唯一标识第二DRX参数。
可选地,DRX配置切换指令携带在DCI信令或MACCE信令中。
步骤304,终端设备在接收到DRX配置切换指令时,读取DRX配置切换指令中的索引,索引用于在多组DRX参数中唯一标识第二DRX参数;
步骤305,终端设备根据索引从第一DRX参数切换至第二DRX参数;
终端设备根据索引在多组DRX参数中确定出第二DRX参数,从第一DRX参数切换至第二DRX参数。
步骤306,终端设备停止第一DRX参数相关的全部或部分定时器。
由于在切换DRX参数时,终端设备中可能正在运行与第一DRX参数相关的定时器。此时,终端设备停止第一DRX参数相关的全部或部分定时器。
在停止部分定时器的情况下,终端设备停止第一DRX参数相关的非连续接收持续定时器(drx-onDurationTimer)和非连续接收不活动定时器(drx-InactivityTimer)。
需要说明的是,终端设备切换PDCCH搜索空间的第一过程和切换DRX参数的第二过程可以同时进行,或者,第一过程在第二过程之前执行(间隔较短),或者,第二过程在第一过程之前执行(间隔较短)。
在如图4所示的例子中,终端设备在初始情况下采用第一DRX参数在第一PDCCH搜索空间上进行监听,第一DRX参数包括:DRX的周期为DRX周期1,以及持续时间(Onduration)为持续时间1。在t时刻,网络设备在PDCCH信道上采用DCI信令向终端设备发送PDCCH搜索空间切换指令和DRX参数切换指令。终端设备在接收到两个切换指令后,采用第二DRX参数在第二PDCCH搜索空间上进行监听,第二DRX参数包括:DRX的周期为DRX周期2,以及持续时间为持续时间2。
综上所述,本实施例提供的方法,通过网络设备向终端设备发送DRX配置切换指令,该DRX配置切换指令中携带有第二DRX参数的索引,终端设备根据索引从第一DRX参数切换至第二DRX参数,由于第二DRX参数的索引是由网络设备根据业务调度的场景来动态确定的,所以能够节省终端设备的计算量,从而更好地节省终端设备的电量。
图5示出了本申请另一个示例性实施例提供的DRX参数的切换方法的流程图。本实施例以该方法应用于图1所示的通信系统来举例说明。该方法包括:
步骤501,网络设备向终端设备发送第一配置信息,第一配置信息用于配置对应关系;
该对应关系包括多对PDCCH搜索空间和DRX参数之间的对应关系。该对应关系至少包括:第二PDCCH搜索空间和第二DRX参数之间的对应关系。在一个示例中,该对应关系如下表一所示:
表一
PDCCH搜索空间的索引 DRX参数的索引
000(表示搜索空间0) 00(表示DRX参数组0)
001(表示搜索空间1) 01(表示DRX参数组1)
010(表示搜索空间2) 10(表示DRX参数组2)
011(表示搜索空间3) 11(表示DRX参数组3)
可选地,该第一配置信息携带在RRC配置信令中。
步骤502,终端设备接收第一配置信息;
终端设备接收第一配置信息,读取第一配置信息中的对应关系。终端设备存储该对应关系。
步骤503,网络设备向终端设备发送PDCCH搜索空间切换指令;
针对不同的业务调度,网络设备可使用不同的PDCCH搜索空间。比如,对于时延敏感业务,网络设备使用时域配置上较为密集的第一PDCCH搜索空间。当网络设备判断一部分业务没有调度需求时,这些业务对应的PDCCH搜索空间暂时不会调度PDCCH。此时,网络设备指示终端设备切换到第二PDCCH搜索空间上进行监听,第二PDCCH搜索空间所需监听的位置少于第一PDCCH搜索空间所需监听的位置。
在需要终端设备切换PDCCH搜索空间时,网络设备向终端设备发送PDCCH搜索空间切换指令。可选地,PDCCH搜索空间切换指令携带在DCI信令或MACCE信令中。
可选地,PDCCH搜索空间切换指令中携带有第二PDCCH搜索空间的索引。
步骤504,终端设备在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间;
终端设备存储有多组PDCCH搜索空间。在接收到PDCCH搜索空间切换指令后,根据PDCCH搜索空间切换指令的指示,从第一PDCCH搜索空间切换至第二PDCCH搜索空间。
可选地,终端设备读取PDCCH搜索空间切换指令中的索引,该索引用于在多个PDCCH搜索空间中唯一标识第二PDCCH搜索空间;根据索引确定第二PDCCH搜索空间。将自身所使用的PDCCH搜索空间从第一PDCCH搜索空间切换至第二PDCCH搜索空间。也即在第二PDCCH搜索空间所指示的时频位置上监听PDCCH。
步骤505,终端设备在对应关系中,确定与第二PDCCH搜索空间对应的第二DRX参数;对应关系包括第二PDCCH搜索空间和第二DRX参数之间的对应关系;
可选地,终端设备读取第二PDCCH搜索空间的索引,根据该第二PDCCH搜索空间的索引查询第二DRX参数的索引。根据第二DRX参数的索引,确定出与第二PDCCH搜索空间对应的第二DRX参数。
可选地,若对应关系中不存在与第二PDCCH搜索空间对应的第二DRX参数时,终端设备将多组PDCCH搜索空间的参考PDCCH搜索空间,确定为第二DRX参数。
步骤506,终端设备在从第一DRX参数,切换至第二PDCCH搜索空间对应的第二DRX参数;
步骤507,终端设备停止第一DRX参数相关的全部或部分定时器。
由于在切换DRX参数时,终端设备中可能正在运行与第一DRX参数相关的定时器。此时,终端设备停止第一DRX参数相关的全部或部分定时器。
在停止部分定时器的情况下,终端设备停止第一DRX参数相关的非连续接收持续定时器(drx-onDurationTimer)和非连续接收不活动定时器(drx-InactivityTimer)。
需要说明的是,终端设备切换PDCCH搜索空间的第一过程和切换DRX参数的第二过程可以同时进行,或者,第一过程在第二过程之前执行(间隔较短),或者,第二过程在第一过程之前执行(间隔较短),本申请对此不加以限定。
在如图6所示的例子中,终端设备在初始情况下采用第一DRX参数在第一PDCCH搜索空间上进行监听,第一DRX参数包括:DRX的周期为DRX周期1,以及持续时间(Onduration)为持续时间1。在t时刻,网络设备在PDCCH信道上采用DCI信令向终端设备发送PDCCH搜索空间切换指令。终端设备在接收到PDCCH搜索空间切换指令后,采用第二DRX参数在第二PDCCH搜索空间上进行监听,第二DRX参数包括:DRX的周期为DRX周期2,以及持续时间为持续时间2。
综上所述,本实施例提供的方法,网络设备在向终端设备发送PDCCH搜索空间切换指令后,终端设备自行确定出与第二PDCCH搜索空间对应的第二DRX参数,能够减少网络设备和终端设备之间的信令数量,减少空口开销。
在基于上述图3或图5所示的可选实施例中,上述方法还包括如下步骤:
步骤702,网络设备向终端设备发送第二配置信息,第二配置信息用于配置多组DRX参数;
可选地,网络设备向终端设备发送无线资源控制(Radio Resource Control,RRC)配置信息,该RRC配置信息包括多组DRX参数,也称多组DRX配置(DRX-Config)。多组DRX参数是指至少两组DRX参数。
可选地,多组DRX参数包括:参考DRX参数和至少一组新增DRX参数。在一个可选的实现中:
第一、参考DRX参数是较为基础的一套DRX配置,或者较为常用的一套DRX配置。示意性的,参考DRX参数中的每个参数均存在参数取值。
第二、一组或多组新增的DRX参数。
1、每组新增的DRX参数包括如下参数中的一个或多个参数:
drx-onDurationTimer
drx-SlotOffset
drx-InactivityTimer
drx-RetransmissionTimerDL
drx-RetransmissionTimerUL
drx-LongCycleStartOffset
drx-ShortCycle
drx-ShortCycleTimer
drx-HARQ-RTT-TimerDL
drx-HARQ-RTT-TimerUL。
2、新增DRX参数中缺少的参数的参数取值,与参考DRX参数中相同参数的参数取值相同。
3、多套DRX参数一一对应的索引(index),每个索引对应一套DRX参数。
可选地,第二配置信息还携带有与多组DRX参数一一对应的索引。
步骤704,终端设备接收第二配置信息。
可选地,终端设备接收网络设备向终端设备发送的RRC配置信息。从RRC配置信息中获取多组DRX参数,存储多组DRX参数。
在一些实施例中,上述多组DRX参数是预定义或预配置的。
综上所述,本实施例提供的方法,通过网络设备向终端设备配置多组DRX参数,使得终端设备能够在不同的PDCCH搜索空间之间切换时,使用不同的DRX参数,提高终端设备的省电效果。
需要说明的是,在上述各个实施例中,由终端设备执行的步骤可以单独实现成为终端设备一侧的DRX参数的切换方法,由网络设备执行的步骤可以单独实现成为网络设备一侧的DRX参数的切换方法。
图8示出了本申请一个示例性实施例提供的DRX参数的切换装置的框图。该装置可以实现成为终端设备,或者设置在终端设备中,所述装置包括:
切换模块820,用于在接收到PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
在本申请的一种可选实现方式中,所述切换模块820,用于在接收到DRX配置切换指令时,从所述第一DRX参数切换至所述第二DRX参数。
在本申请的一种可选实现方式中,所述切换模块820,用于在接收到所述DRX配置切换指令时,读取所述DRX配置切换指令中的索引,所述索引用于在多组DRX参数中唯一标识所述第二DRX参数;根据所述索引从所述第一DRX参数切换至所述第二DRX参数。
在本申请的一种可选实现方式中,所述DRX配置切换指令携带在DCI信令或MACCE信令中。
在本申请的另一种可选实现方式中,所述切换模块820,用于在对应关系中,确定与所述第二PDCCH搜索空间对应的所述第二DRX参数;所述对应关系包括所述第二PDCCH搜索空间和所述第二DRX参数之间的对应关系;
从所述第一DRX参数,切换至所述第二PDCCH搜索空间对应的所述第二DRX参数。
在本申请的另一种可选实现方式中,所述装置还包括:
接收模块840,用于接收第一配置信息,所述第一配置信息用于配置所述对应关系。
在本申请的另一种可选实现方式中,所述装置还包括:
接收模块840,用于接收第二配置信息,所述第二配置信息用于配置多组DRX参数,所述多组DRX参数包括所述第一DRX参数和所述第二DRX参数。
在本申请的另一种可选实现方式中,所述多组DRX参数包括:
参考DRX参数和至少一组新增DRX参数;
其中,所述新增DRX参数中缺少的参数的参数取值,与所述参考DRX参数中相同参数的参数取值相同。
在本申请的另一种可选实现方式中,所述第二配置信息还携带有与所述多组DRX参数一一对应的索引。
在本申请的另一种可选实现方式中,所述装置还包括:
停止模块860,用于停止所述第一DRX参数相关的全部或部分定时器。
在本申请的另一种可选实现方式中,所述停止模块,用于停止所述第一DRX参数相关的drx-onDurationTimer和drx-InactivityTimer。
图9示出了本申请一个示例性实施例提供的DRX参数的切换装置的框图。该装置可以实现成为网络设备,或者设置在网络设备中,所述装置包括:
发送模块920,用于向终端设备发送PDCCH搜索空间切换指令,所述终端设备用于在接收到所述PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
在本申请的一种可选实现方式中,所述发送模块920,用于向所述终端设备发送DRX配置切换指令,所述DRX配置切换指令用于指示从所述第一DRX参数切换至所述第二DRX参数。
在本申请的一种可选实现方式中,所述DRX配置切换指令中携带有索引,所述索引用于在多组DRX参数中唯一标识所述第二DRX参数。
在本申请的一种可选实现方式中,所述DRX配置切换指令携带在DCI信令或MACCE信令中。
在本申请的另一种可选实现方式中,所述发送模块920,用于向所述终端设备发送第一配置信息,所述第一配置信息用于配置对应关系,所述对应关系包括所述第二PDCCH搜索空间和所述第二DRX参数之间的对应关系。
在本申请的另一种可选实现方式中,所述发送模块920,用于向所述终端设备发送第二配置信息,所述第二配置信息用于配置多组DRX参数,所述多组DRX参数包括所述第一DRX参数和所述第二DRX参数。
在本申请的另一种可选实现方式中,所述多组DRX参数包括:
参考DRX参数和至少一组新增DRX参数;
其中,所述新增DRX参数中缺少的参数的参数取值,与所述参考DRX参数中相同参数的参数取值相同。
在本申请的另一种可选实现方式中,所述第二配置信息还携带有与所述多组DRX参数一一对应的索引。
图10示出了本申请一个示例性实施例提供的通信设备(网络设备或终端设备)的结构示意图,该通信设备包括:处理器101、接收器102、发射器103、存储器104和总线105。
处理器101包括一个或者一个以上处理核心,处理器101通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器102和发射器103可以实现为一个通信组件,该通信组件可以是一块通信芯片。
存储器104通过总线105与处理器101相连。
存储器104可用于存储至少一个指令,处理器101用于执行该至少一个指令,以实现上述方法实施例中的各个步骤。
此外,存储器104可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EEPROM),可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EPROM),静态随时存取存储器(Static Random Access  Memory,SRAM),只读存储器(Read-Only Memory,ROM),磁存储器,快闪存储器,可编程只读存储器(Programmable Read-Only Memory,PROM)。
在示例性实施例中,还提供了一种计算机可读存储介质,所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集,所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现上述各个方法实施例提供的由终端设备执行的DRX参数的切换方法,或网络设备执行的DRX参数的切换方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。
以上所述仅为本申请的可选实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (41)

  1. 一种非连续接收DRX参数的切换方法,其特征在于,所述方法包括:
    在接收到物理下行控制信道PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
    其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
  2. 根据权利要求1所述的方法,其特征在于,所述从第一DRX参数切换至第二DRX参数,包括:
    在接收到DRX配置切换指令时,从所述第一DRX参数切换至所述第二DRX参数。
  3. 根据权利要求2所述的方法,其特征在于,所述在接收到DRX配置切换指令时,从所述第一DRX参数切换至所述第二DRX参数,包括:
    在接收到所述DRX配置切换指令后,读取所述DRX配置切换指令中的索引,所述索引用于在多组DRX参数中唯一标识所述第二DRX参数;
    根据所述索引从所述第一DRX参数切换至所述第二DRX参数。
  4. 根据权利要求2所述的方法,其特征在于,所述DRX配置切换指令携带在下行控制信息DCI信令或媒体访问控制控制单元MACCE信令中。
  5. 根据权利要求1所述的方法,其特征在于,所述从第一DRX参数切换至第二DRX参数,包括:
    在对应关系中,确定与所述第二PDCCH搜索空间对应的所述第二DRX参数;所述对应关系包括所述第二PDCCH搜索空间和所述第二DRX参数之间的对应关系;
    从所述第一DRX参数,切换至所述第二PDCCH搜索空间对应的所述第二DRX参数。
  6. 根据权利要求5所述的方法,其特征在于,所述方法还包括:
    接收第一配置信息,所述第一配置信息用于配置所述对应关系。
  7. 根据权利要求1至6任一所述的方法,其特征在于,所述方法还包括:
    接收第二配置信息,所述第二配置信息用于配置多组DRX参数,所述多组DRX参数包括所述第一DRX参数和所述第二DRX参数。
  8. 根据权利要求7所述的方法,其特征在于,所述多组DRX参数包括:
    参考DRX参数和至少一组新增DRX参数;
    其中,所述新增DRX参数中缺少的参数的参数取值,与所述参考DRX参数中相同参数的参数取值相同。
  9. 根据权利要求7所述的方法,其特征在于,所述第二配置信息还携带有与所述多组DRX参数一一对应的索引。
  10. 根据权利要求1至9任一所述的方法,其特征在于,所述方法还包括:
    停止所述第一DRX参数相关的全部或部分定时器。
  11. 根据权利要求10所述的方法,其特征在于,所述停止所述第一DRX参数相关的部分定时器,包括:
    停止所述第一DRX参数相关的非连续接收持续定时器drx-onDurationTimer和非连续接收不活动定时器drx-InactivityTimer。
  12. 一种非连续接收DRX参数的切换方法,其特征在于,所述方法包括:
    向终端设备发送物理下行控制信道PDCCH搜索空间切换指令,所述终端设备用于在接收到所述PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
    其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
  13. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    向所述终端设备发送DRX配置切换指令,所述DRX配置切换指令用于指示从所述第一DRX参数切换至所述第二DRX参数。
  14. 根据权利要求13所述的方法,其特征在于,所述DRX配置切换指令中携带有索引,所述索引用于在多组DRX参数中唯一标识所述第二DRX参数。
  15. 根据权利要求13所述的方法,其特征在于,所述DRX配置切换指令携带在下行控制信息DCI信令或媒体访问控制控制单元MACCE信令中。
  16. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    向所述终端设备发送第一配置信息,所述第一配置信息用于配置对应关系,所述对应关系包括所述第二PDCCH搜索空间和所述第二DRX参数之间的对应关系。
  17. 根据权利要求12至16任一所述的方法,其特征在于,所述方法还包括:
    向所述终端设备发送第二配置信息,所述第二配置信息用于配置多组DRX参数,所述多组DRX参数包括所述第一DRX参数和所述第二DRX参数。
  18. 根据权利要求17所述的方法,其特征在于,所述多组DRX参数包括:
    参考DRX参数和至少一组新增DRX参数;
    其中,所述新增DRX参数中缺少的参数的参数取值,与所述参考DRX参数中相同参数 的参数取值相同。
  19. 根据权利要求17所述的方法,其特征在于,所述第二配置信息还携带有与所述多组DRX参数一一对应的索引。
  20. 一种非连续接收DRX参数的切换装置,其特征在于,所述装置包括:
    切换模块,用于在接收到物理下行控制信道PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
    其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
  21. 根据权利要求20所述的装置,其特征在于,所述切换模块,用于在接收到DRX配置切换指令时,从所述第一DRX参数切换至所述第二DRX参数。
  22. 根据权利要求21所述的装置,其特征在于,所述切换模块,用于在接收到所述DRX配置切换指令时,读取所述DRX配置切换指令中的索引,所述索引用于在多组DRX参数中唯一标识所述第二DRX参数;根据所述索引从所述第一DRX参数切换至所述第二DRX参数。
  23. 根据权利要求21所述的装置,其特征在于,所述DRX配置切换指令携带在下行控制信息DCI信令或媒体访问控制控制单元MACCE信令中。
  24. 根据权利要求20所述的装置,其特征在于,所述切换模块,用于在对应关系中,确定与所述第二PDCCH搜索空间对应的所述第二DRX参数;所述对应关系包括所述第二PDCCH搜索空间和所述第二DRX参数之间的对应关系;
    从所述第一DRX参数,切换至所述第二PDCCH搜索空间对应的所述第二DRX参数。
  25. 根据权利要求24所述的装置,其特征在于,所述装置还包括:
    接收模块,用于接收第一配置信息,所述第一配置信息用于配置所述对应关系。
  26. 根据权利要求20至25任一所述的装置,其特征在于,所述装置还包括:
    接收模块,用于接收第二配置信息,所述第二配置信息用于配置多组DRX参数,所述多组DRX参数包括所述第一DRX参数和所述第二DRX参数。
  27. 根据权利要求26所述的装置,其特征在于,所述多组DRX参数包括:
    参考DRX参数和至少一组新增DRX参数;
    其中,所述新增DRX参数中缺少的参数的参数取值,与所述参考DRX参数中相同参数的参数取值相同。
  28. 根据权利要求26所述的装置,其特征在于,所述第二配置信息还携带有与所述多组DRX参数一一对应的索引。
  29. 根据权利要求20至28任一所述的装置,其特征在于,所述装置还包括:
    停止模块,用于停止所述第一DRX参数相关的全部或部分定时器。
  30. 根据权利要求29所述的装置,其特征在于,所述停止模块,用于停止所述第一DRX参数相关的非连续接收持续定时器drx-onDurationTimer和非连续接收不活动定时器drx-InactivityTimer。
  31. 一种非连续接收DRX参数的切换装置,其特征在于,所述装置包括:
    发送模块,用于向终端设备发送物理下行控制信道PDCCH搜索空间切换指令,所述终端设备用于在接收到所述PDCCH搜索空间切换指令后,从第一PDCCH搜索空间切换至第二PDCCH搜索空间,以及从第一DRX参数切换至第二DRX参数;
    其中,所述第一DRX参数与所述第一PDCCH搜索空间对应,所述第二DRX参数与所述第二PDCCH搜索空间对应。
  32. 根据权利要求31所述的装置,其特征在于,
    所述发送模块,用于向所述终端设备发送DRX配置切换指令,所述DRX配置切换指令用于指示从所述第一DRX参数切换至所述第二DRX参数。
  33. 根据权利要求32所述的装置,其特征在于,所述DRX配置切换指令中携带有索引,所述索引用于在多组DRX参数中唯一标识所述第二DRX参数。
  34. 根据权利要求32所述的装置,其特征在于,所述DRX配置切换指令携带在下行控制信息DCI信令或媒体访问控制控制单元MACCE信令中。
  35. 根据权利要求31所述的装置,其特征在于,
    所述发送模块,用于向所述终端设备发送第一配置信息,所述第一配置信息用于配置对应关系,所述对应关系包括所述第二PDCCH搜索空间和所述第二DRX参数之间的对应关系。
  36. 根据权利要求31至35任一所述的装置,其特征在于,
    所述发送模块,用于向所述终端设备发送第二配置信息,所述第二配置信息用于配置多组DRX参数,所述多组DRX参数包括所述第一DRX参数和所述第二DRX参数。
  37. 根据权利要求36所述的装置,其特征在于,所述多组DRX参数包括:
    参考DRX参数和至少一组新增DRX参数;
    其中,所述新增DRX参数中缺少的参数的参数取值,与所述参考DRX参数中相同参数的参数取值相同。
  38. 根据权利要求36所述的装置,其特征在于,所述第二配置信息还携带有与所述多组DRX参数一一对应的索引。
  39. 一种终端设备,其特征在于,所述终端设备包括:
    处理器;
    与所述处理器相连的收发器;
    用于存储所述处理器的可执行指令的存储器;
    其中,所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至11中任一所述的DRX参数的切换方法。
  40. 一种网络设备,其特征在于,所述网络设备包括:
    处理器;
    与所述处理器相连的收发器;
    用于存储所述处理器的可执行指令的存储器;
    其中,所述处理器被配置为加载并执行所述可执行指令以实现如权利要求12至19任一所述的DRX参数的切换方法。
  41. 一种计算机可读存储介质,其特征在于,所述可读存储介质中存储有可执行指令,所述可执行指令由所述处理器加载并执行以实现如权利要求1至19中任一所述的DRX参数的切换方法。
PCT/CN2020/094670 2020-06-05 2020-06-05 Drx参数的切换方法、装置、设备及存储介质 WO2021243704A1 (zh)

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