WO2021104521A1 - 用于非授权频段的drx的方法和终端装置 - Google Patents

用于非授权频段的drx的方法和终端装置 Download PDF

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Publication number
WO2021104521A1
WO2021104521A1 PCT/CN2020/132804 CN2020132804W WO2021104521A1 WO 2021104521 A1 WO2021104521 A1 WO 2021104521A1 CN 2020132804 W CN2020132804 W CN 2020132804W WO 2021104521 A1 WO2021104521 A1 WO 2021104521A1
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WIPO (PCT)
Prior art keywords
terminal device
drx mode
signal
indication information
drx
Prior art date
Application number
PCT/CN2020/132804
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English (en)
French (fr)
Inventor
范巍巍
张佳胤
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20893788.8A priority Critical patent/EP4061064A4/en
Publication of WO2021104521A1 publication Critical patent/WO2021104521A1/zh
Priority to US17/827,349 priority patent/US20220295595A1/en

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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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of wireless communication technology, and more specifically, to a method and terminal device for DRX in an unlicensed frequency band.
  • NR new radio
  • LBT listening before talk
  • the channel is usually continuously monitored.
  • the battery life of the terminal device has a great impact on the user experience. Continuous monitoring of the channel will inevitably cause high power consumption of the terminal device, which will affect the battery life of the terminal device. Therefore, how to reduce the power consumption of the terminal device has become an urgent problem to be solved. .
  • This application provides a DRX method and terminal device for unlicensed frequency bands.
  • terminal devices By configuring terminal devices to adopt a special channel monitoring mechanism under the premise of ensuring communication efficiency, the power consumption of terminal devices working in unlicensed frequency bands can be saved.
  • this application provides a DRX method for unlicensed frequency bands.
  • the first terminal device monitors P unlicensed resource units in the non-DRX mode, and the non-DRX mode means that the first terminal device is in the The P unlicensed resource units monitor signals within the first monitoring period; the first terminal device does not detect the sideline signal corresponding to the first terminal device and/or the corresponding first terminal device in consecutive P unlicensed resource units
  • the first terminal device switches from the non-DRX mode to the DRX mode, where, in the DRX mode, the unlicensed resource unit includes the second monitoring duration and the sleep duration, and the DRX mode is that the first terminal device is in the If the signal is monitored during the second monitoring period, and the side line signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored during the second monitoring period, in the sleep period Stop monitoring, P ⁇ 1 and P is an integer.
  • the receiving end device (corresponding to the first terminal device) that supports sidelink performs signal monitoring on the unlicensed resources configured by the network device, and the side that is not detected as belonging to the receiving end device is not detected when the continuous P unlicensed resource units are satisfied.
  • the receiving end device autonomously switches from the non-DRX mode to the DRX mode.
  • the receiving end device monitors whether there are sideline signals and/or downlink signals belonging to the receiving end device in the unlicensed frequency band, and switches from the non-DRX mode to the DRX mode when the switching conditions are met, thereby eliminating the need for the receiving end device to continue Ground monitoring of unauthorized resources can save power consumption.
  • the embodiments of the present application can be applied to both sidelink scenarios based on unlicensed frequency bands and Uulink scenarios based on unlicensed frequency bands.
  • the situation where the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored is one or more of the following :
  • the first terminal device monitors the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device on P consecutive unlicensed resource units, the purpose of the sideline signal and/or the downlink signal
  • the address is different from the address of the first terminal device; or,
  • the first terminal device fails to detect the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device on P consecutive unlicensed resource units, and the received signal strength on the consecutive P unlicensed resource units Below the preset threshold.
  • the fact that the receiving device does not detect the sideline signal and downlink signal may not mean that the sending device has no signal to send.
  • the sending device may cause a signal due to LBT failure. Not issued. Therefore, when the receiving end monitors the signal on the unlicensed resource configured by the network device, in addition to determining that the sideline signal or downlink signal is not monitored, the receiving end device also needs to detect the sideline signal and/or downlink signal without detecting the sideline signal and/or downlink signal.
  • Further judging the signal receiving energy on the unlicensed resource unit can prevent the sending end device from being unable to send a signal due to unsuccessful LBT, making the receiving end device wrongly judging that the sending end device has no signal to send and erroneously switching to the DRX mode. This may cause loss of signals or data, which can improve the accuracy of the receiving end in judging the signal transmission condition of the transmitting end.
  • the method further includes: the first terminal device monitors the unlicensed resource unit in the DRX mode; When the first terminal device monitors the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device within the second monitoring period, the first terminal device switches from the DRX mode to the non-DRX mode .
  • the unlicensed resource unit includes multiple time units in the time domain, and the second monitoring duration includes part of the multiple time units, so The time unit is any one of the following: milliseconds, symbols, or time slots.
  • this application provides a method for DRX in an unlicensed frequency band, the method includes: a first terminal device receives first indication information, the first indication information is used to instruct the first terminal device to use a non-DRX mode or The DRX mode, where the non-DRX mode is that the first terminal device monitors the signal during the first monitoring period of the unlicensed resource unit, and the DRX mode is that the first terminal device monitors the signal during the second monitoring period of the unlicensed resource unit, and In the case that the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored within the second monitoring duration, the monitoring is stopped within the sleep duration of the unlicensed resource unit; the first terminal The device adopts the DRX mode or the non-DRX mode according to the first indication information.
  • the receiving end device that communicates via the side link performs switching between the DRX mode and the non-DRX mode according to the first instruction information from the sending end device of the side link. Or, the sending end device instructs the network device to use the DRX mode or the non-DRX mode for the receiving end device, and then the network device informs the receiving end device to use the DRX mode or the non-DRX mode through the first indication information, that is, the Uu link assists in receiving The end device implements DRX. Thus, the power consumption of the receiving end device can be saved.
  • the sending end of the sidelink actively instructs the mode switching of the receiving end to avoid the problem of switching delay in the method of the first aspect that the receiving end monitors the signal of the sending end to determine the mode switching. Therefore, compared with the solution in the first aspect, the method in the second aspect or any implementation manner thereof can effectively reduce the handover delay.
  • the first indication information is carried in the SSB, RRC signaling, and MAC CE or DCI of the PDSCH from the network device.
  • the network device can send the first indication information to the first terminal device in a variety of ways, which improves the flexibility of the indication.
  • the first indication information is a first signal or a second signal
  • the first signal is used to instruct the first terminal device to adopt the DRX mode
  • the second signal It is used to instruct the first terminal device to adopt the non-DRX mode.
  • each signal itself is used to indicate one of the DRX mode or the non-DRX mode. Therefore, the first terminal device can determine whether to adopt the DRX mode or the non-DRX mode by monitoring the signal itself. By means of this implicit indication, it is possible to avoid additional signaling overhead caused by instructing the first terminal device through special signaling.
  • the first signal is a first DMRS
  • the second signal is a second DMRS
  • the reference sequences constituting the first DMRS and the second DMRS are different.
  • the method before the first terminal device receives the first indication information, the method further includes: the first terminal device registers the sidelink physical of the first terminal device with the network device. Address information of the layer.
  • this application provides a method for DRX in an unlicensed frequency band, the method includes: a second terminal device sends first indication information or second indication information, and the first indication information or second indication information is used for Instruct the first terminal device to use the non-DRX mode or the DRX mode, where the non-DRX mode is that the first terminal device monitors the signal during the first monitoring period of the unlicensed resource unit, and the DRX mode is that the first terminal device monitors the signal in the unlicensed resource unit. If the signal is monitored during the second monitoring period, and the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored during the second monitoring period, the unlicensed resource unit Stop monitoring within the sleep duration.
  • the second terminal device may directly send the first indication information to the first terminal device, where the first indication information is used to instruct the first terminal device to adopt the DRX mode or the non-DRX mode.
  • the second terminal device sends the second instruction information to the network device, and the network device demodulates the second instruction information and learns the DRX mode or non-DRX mode indicated by the second terminal device, and then the network device sends the second instruction information to the first terminal device.
  • Send the first indication information where the first indication information indicates the DRX mode or the non-DRX mode.
  • the sending end of the sidelink indicates to the receiving end (corresponding to the first terminal device) to use the DRX mode or the non-DRX mode through the network equipment, which can avoid the transmission
  • the terminal has the disadvantage that the LBT on the sidelink is unsuccessful, and the instruction information used to indicate the mode switching of the first terminal device cannot be sent out in time, which can reduce the time delay of the mode switching.
  • the first indication information is carried in the SL-SSB or PC5-RRC signaling sent by the second terminal device.
  • the second indication information is carried in the MAC CE of the PUSCH or the first type of PUCCH sent by the second terminal device, and the first type of PUCCH is present at the time The domain occupies a slot.
  • the second indication information is a first signal or a second signal
  • the first signal is used to instruct the first terminal device to adopt the DRX mode
  • the second signal It is used to instruct the first terminal device to adopt the non-DRX mode.
  • the first signal is a first DMRS and the second signal is a second DMRS, and the reference sequences constituting the first DMRS and the second DMRS are different.
  • the first signal is a first PUCCH of a second type
  • the second signal is a second PUCCH of a second type, constituting the first PUCCH Different from the reference sequence of the second PUCCH, the second type of PUCCH does not occupy one time slot in the time domain.
  • the first signal is a first scheduling request SR
  • the second signal is a second SR, constituting the first SR and the second SR
  • the reference sequence is different.
  • the method before the second terminal device sends the first signal or the second signal, the method further includes: the second terminal device registers the side line of the second terminal device with the network device Address information of the physical layer of the link.
  • this application provides a method for DRX in an unlicensed frequency band.
  • the method includes: a network device receives second indication information from a second terminal device, and the second indication information is used to instruct the first terminal device to use the non-licensed frequency band.
  • the non-DRX mode is that the first terminal device monitors the signal during the first monitoring period in the unlicensed resource unit
  • the DRX mode is the first terminal device monitors the signal during the second monitoring period in the unlicensed resource unit Monitoring signals, and in the case that the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored within the second monitoring duration, stop within the sleep duration of the unlicensed resource unit Monitoring;
  • the network device sends first indication information to the first terminal device according to the second indication information, where the first indication information is used to indicate the non-DRX mode or the DRX mode.
  • the network device receives the second indication information from the sending end of the sidelink (corresponding to the second terminal device) through the Uu link, and the second indication information is used to instruct the receiving end of the sidelink (corresponding to the first terminal device) to adopt DRX mode or non-DRX mode .
  • the network device uses the Uu link to send first indication information to the receiving end, where the first indication information is used to instruct the receiving end to adopt the DRX mode or the non-DRX mode.
  • the receiving end working in the unlicensed frequency band of the sidelink can realize DRX, which can save the power consumption of the receiving end.
  • the U link can work in a licensed frequency band or an unlicensed frequency band.
  • the sending end of the sidelink indicates to the receiving end (corresponding to the first terminal device) to use the DRX mode or the non-DRX mode through the network device, and
  • the first indication information used to indicate the mode switching of the first terminal device cannot be sent out in time due to the unsuccessful LBT of the sender (for example, the network device) on the sidelink
  • the disadvantage is that it can reduce the time delay of mode switching.
  • the second indication information is carried in the MAC CE of the PUSCH from the second terminal device or the PUCCH of the first type.
  • the second terminal device can indicate the DRX mode or the non-DRX mode to the network device in a variety of ways, which improves the flexibility of the indication.
  • the second indication information is a first signal or a second signal, and the first signal is used to instruct the first terminal device to adopt the DRX mode, and the second signal Used to instruct the first terminal device to adopt the non-DRX mode; the network device sends first instruction information to the first terminal device according to the second instruction information, and the first instruction information is used to instruct the first terminal device to adopt the non-DRX mode or DRX
  • the mode includes: the network device receives the first signal from the second terminal device, the network device sends first indication information to the first terminal device, and the first indication information is used to indicate the DRX mode; or, the network device receives the first signal from the For the second signal of the second terminal device, the network device sends first indication information to the first terminal device, where the first indication information is used to indicate the non-DRX mode.
  • each signal itself is used to indicate one of the DRX mode or the non-DRX mode. Therefore, the network device can determine that the second terminal device instructs the first terminal device to adopt the DRX mode or the non-DRX mode according to the signal itself from the second terminal device, and then notify the first terminal device through the first indication information.
  • the additional signaling overhead and resource overhead caused by the second terminal device indicating the network device through special signaling or indication information can be avoided.
  • the first signal is a first PUCCH of a second type
  • the second signal is a second PUCCH of a second type, constituting the first PUCCH It is different from the reference sequence of the second PUCCH.
  • the first signal is a first scheduling request SR
  • the second signal is a second SR, forming the first SR and the second SR
  • the reference sequence is different.
  • the method before the network device receives the second indication information from the second terminal device, the method further includes: the network device receives the first address information from the first terminal device And second address information from the second terminal device, where the first address information is the address information of the side link physical layer of the first terminal device, and the second address information is the side link of the second terminal device.
  • Address information of the uplink physical layer the network device sends the first instruction information to the first terminal device according to the second instruction information, including: the network device sends the first instruction information to the first terminal device corresponding to the first address information,
  • the first address information is determined by the network device according to the address information of the physical layer of the air interface link receiving the second indication information and the mapping relationship.
  • the mapping relationship records the first address information, the second address information, and the first terminal device and the first terminal device. Correspondence between the address information of the physical layer of the air interface link of the two terminal devices.
  • the first indication information is carried in the DCI or PDSCH sent by the network device.
  • the present application provides a terminal device that has a function of implementing the method in the first aspect, the second aspect, or any possible implementation manner thereof.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the terminal device is a terminal device.
  • the terminal device is a chip.
  • the present application provides a terminal device that has a function of implementing the method in the third aspect or any possible implementation manner thereof.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the terminal device is a terminal device.
  • the terminal device is a chip.
  • the present application provides a communication device that has a function of implementing the method in the fourth aspect or any possible implementation manner thereof.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the communication device is a network device, such as an access network device.
  • the communication device is a chip.
  • this application provides a terminal device including one or more processors and one or more memories.
  • the one or more memories are used to store computer programs, and the one or more processors are used to call and run the computer programs stored in the one or more memories, so that the terminal device executes the first aspect, the second aspect, or the The method in any possible implementation.
  • this application provides a terminal device including one or more processors and one or more memories.
  • the one or more memories are used to store computer programs, and the one or more processors are used to call and run the computer programs stored in the one or more memories, so that the terminal device executes the third aspect or any possible The method in the implementation mode.
  • this application provides a network device including one or more processors and one or more memories.
  • the one or more memories are used to store computer programs, and the one or more processors are used to call and run the computer programs stored in the one or more memories, so that the network device executes the fourth aspect or any of its possible The method in the implementation mode.
  • this application provides a chip including one or more processors.
  • the one or more processors are used to read and execute one or more computer programs stored in the memory to execute the method in the first aspect, the second aspect, or any possible implementation manner thereof.
  • the one or more memories are independently provided outside the chip.
  • the chip further includes one or more memories, and the one or more memories and the one or more processors are connected to the one or more memories through circuits or wires.
  • the chip further includes a communication interface.
  • this application provides a chip including one or more processors.
  • the one or more processors are used to read and execute one or more computer programs stored in the memory to execute the method in the third aspect or any possible implementation manner thereof.
  • the one or more memories are independently provided outside the chip.
  • the chip further includes one or more memories, and the one or more memories and the one or more processors are connected to the one or more memories through circuits or wires.
  • the chip further includes a communication interface.
  • this application provides a chip including one or more processors.
  • the one or more processors are used to read and execute one or more computer programs stored in the memory to execute the method in the fourth aspect or any possible implementation manner thereof.
  • the one or more memories are independently provided outside the chip.
  • the chip further includes one or more memories, and the one or more memories and the one or more processors are connected to the one or more memories through circuits or wires.
  • the chip further includes a communication interface.
  • the chip mentioned in the above aspect may be a system on chip (SoC), a baseband chip, and so on.
  • SoC system on chip
  • baseband chip a baseband chip
  • this application also provides a computer program product, including computer program code, which when the computer program code runs on a computer, causes the computer to execute the first aspect, the second aspect, or any of the above-mentioned aspects.
  • the method in the implementation mode is also provided.
  • this application also provides a computer program product, including computer program code, which when the computer program code runs on a computer, causes the computer to execute the third aspect or any one of its possible implementations. method.
  • the present application also provides a computer program product, including computer program code, which when the computer program code runs on a computer, causes the computer to execute the fourth aspect or any one of its possible implementations. method.
  • this application also provides a computer storage medium that stores computer instructions in the computer-readable storage medium.
  • the computer instructions run on a computer, the computer executes the first aspect, the second aspect, or any of them. Methods in possible implementations.
  • this application also provides a computer storage medium in which computer instructions are stored in the computer-readable storage medium.
  • the computer instructions run on the computer, the computer executes the third aspect or any possible implementation manner thereof. In the method.
  • this application also provides a computer storage medium that stores computer instructions in the computer-readable storage medium.
  • the computer instructions run on the computer, the computer executes the fourth aspect or any possible implementation manner thereof. In the method.
  • the present application also provides a communication device, including a processor and an interface circuit, the interface circuit is used to receive computer codes or instructions and transmit them to the processor, and the processor is used to run the computer Code or instructions to execute the method in the first aspect, the second aspect, or any possible implementation manner thereof.
  • the present application also provides a communication device, including a processor and an interface circuit, the interface circuit is used to receive computer code or instructions, and transmit to the processor, the processor is used to run the Computer code or instructions to execute the method in the third aspect or any possible implementation manner thereof.
  • the present application also provides a communication device, including a processor and an interface circuit, the interface circuit is used to receive computer code or instructions, and transmit to the processor, the processor is used to run the Computer code or instructions to execute the method in the fourth aspect or any possible implementation manner thereof.
  • the present application provides a wireless communication system, including one or more of the terminal device of the eighth aspect, the terminal device of the ninth aspect, and the network device of the tenth aspect.
  • Fig. 1 is an example of the architecture of a communication system suitable for an embodiment of the present application.
  • Figure 2 (a) and (b) are schematic diagrams of the unauthorized resources provided by this application.
  • Figure 3 is an example of DRX for unlicensed frequency bands provided by this application.
  • Fig. 4 is an example of UE switching between DRX mode and non-DRX mode.
  • Figure 5 is a schematic flow chart of implementing DRX in an unlicensed frequency band by using method 2.
  • Fig. 6 is an example of instructing the receiving end to adopt the DRX mode or the non-DRX mode through the SL-SSB.
  • Fig. 7 is another schematic flow chart for the unlicensed frequency band DRX provided by this application.
  • Fig. 8 is an example of implementing DRX in an unlicensed frequency band using Method 3.
  • FIG. 9 is a schematic structural diagram of a terminal device 800 provided by this application.
  • FIG. 10 is a schematic structural diagram of a terminal device 900 provided by this application.
  • FIG. 11 is a schematic structural diagram of a communication device 1000 provided by this application.
  • FIG. 12 is a schematic structural diagram of the terminal device 10 provided by this application.
  • FIG. 13 is a schematic structural diagram of the terminal device 20 provided by this application.
  • FIG. 14 is a schematic structural diagram of the communication device 30 provided by this application.
  • the technical solution of this application is mainly applied to wireless communication systems working in unlicensed frequency bands, for example, worldwide interoperability for microwave access (WiMAX) communication systems, and the fifth generation (the 5 th generation, 5G) communication system or other communication systems, as well as wireless communication systems working in unlicensed frequency bands after 5G.
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • 5G wireless communication systems working in unlicensed frequency bands after 5G.
  • the network equipment involved in this application includes, but is not limited to: evolved node B (evolved node base, eNB), radio network controller (RNC), node B (node B, NB), base station controller (base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (home evolved NodeB, or home node B, HNB), baseband unit (BBU), evolved (evolved LTE, eLTE) base station , NR base station (next generation node B, gNB), etc.
  • the network device may also be a centralized unit (CU) or a distributed unit (DU).
  • the terminal equipment involved in this application includes but is not limited to: user equipment (UE), mobile station, access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile equipment, terminal, wireless communication Equipment, user agent, wireless local access network (WLAN) station (ST), cell phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (wireless local loop) , WLL) station, personal digital assistant (PDA), handheld devices with wireless communication functions, computing devices, other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, mobile stations in 5G networks, and Any of the terminal devices in the future evolving network.
  • the vehicle-mounted device may also be a vehicle-mounted communication module or other embedded communication modules.
  • the in-vehicle communication module may also be called an in-vehicle terminal device or an on-board unit (OBU).
  • the terminal device of the embodiment of the present application may also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit built into a vehicle as one or more components or units.
  • the vehicle can implement the method of the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit.
  • the terminal equipment can also be any terminal equipment and terminal equipment such as vehicle-to-everything (V2X), intelligent connected vehicle (ICV), communication systems such as autonomous driving or assisted driving , D2D) Terminal equipment in the communication system.
  • V2X vehicle-to-everything
  • IOV intelligent connected vehicle
  • D2D communication systems
  • D2D autonomous driving or assisted driving
  • the wireless communication system may include at least one network device and at least one terminal device.
  • the network equipment is 110 and 120 as shown in Figure 1
  • the terminal equipment is 111-119 as shown in Figure 1.
  • data transmission can be performed between the network device and the terminal device through a Uu link (Uu link).
  • Uu link For example, the network device 110 and the terminal devices 111, 112, 113, and 114 and 115 are transmitted through Uu links.
  • the Uu link can work in a licensed band and/or an unlicensed band.
  • data transmission can also be carried out between terminal devices via sidelink (SL).
  • SL sidelink
  • the terminal devices 114 and 115, and 114 and 116 perform data transmission through side links.
  • the sidelink can also work in a licensed band or an unlicensed band (Un-licensed Band).
  • the wireless communication system may also include other network devices.
  • the data transmission between terminal devices mentioned in this article may include multiple scenarios.
  • data transmission is performed between two or more terminal devices located under the network coverage of the network device 110, for example, data transmission between 114 and 115, or 114 and 116, and 115 and 116 .
  • one terminal device for data transmission through sidelink is located under the network coverage of a network device, and another terminal device can be located outside the network coverage of the one network device.
  • the terminal device 114 is located under the network coverage of the network device 110, and the terminal device 117 is located under the network coverage of the network device 120. For example, data transfer between 114 and 117.
  • the terminal device 117 is located under the network coverage of the network device 120, and no connection is established between the terminal device 118 and the network device 120.
  • the two terminal devices that transmit data through sidelink may both be located outside the coverage of the network device 120, or in other words, there is no connection between the two terminal devices that transmit data through sidelink and the network device 120. establish connection. For example, data transfer between 118 and 119.
  • connection between the two terminal devices can be established through technologies such as wireless fidelity (wifi) or Bluetooth.
  • the technical solutions of the present application can implement DRX of the receiving end device on the sidelink, thereby achieving the purpose of saving power consumption of the receiving end device.
  • the technical solution of the present application is to support the terminal device to implement DRX on the sidelink
  • some embodiments involve assisting the terminal device to implement DRX on the sidelink through a Uu link.
  • the configuration and use of authorized resources corresponding to the Uu link can adopt existing mechanisms.
  • the network device configures authorized resources for the terminal device. Under the scheduling of the network device, the terminal device uses the authorized resource to send an uplink signal to the network device or receive a downlink signal from the network device.
  • the receiving end device or the sending end device in this document is defined from the perspective of the data transmission direction.
  • the receiving end device refers to the one of the two terminal devices that communicate through sidelink that receives signals and/or data.
  • the network device configures unlicensed resources for two or more terminal devices that use unlicensed frequency bands for data transmission, and the terminal device sends and receives sideline signals on the unlicensed resources configured by the network device.
  • the terminal device is a terminal device (referred to as a "sidelink terminal device" for ease of description) that can support side link communication and/or a terminal device that supports Uu link to communicate with network devices wirelessly.
  • the unlicensed resource may be a periodic resource or a non-periodic resource.
  • the unlicensed resource when it is a periodic resource, it may be a configured grant (CG) resource.
  • CG configured grant
  • the unlicensed resource unit of the sidelink may specifically be an acyclic resource or a CG resource.
  • Uulink's unlicensed resources can be non-periodic resources.
  • the network device configures a periodic unlicensed resource unit for the terminal device.
  • the sizes of the two different unauthorized resource units can be the same or different.
  • the unlicensed resource configured by the network device for the terminal device may also be a continuous unlicensed resource unit in the time domain.
  • the unlicensed resource unit is continuous in the time domain, the unlicensed resource is an acyclic resource.
  • the unlicensed resource can be a periodic resource.
  • the periodic unlicensed resource may be composed of periodic unlicensed resource units, and the time interval between two unlicensed resource units that appear consecutively in the time domain is greater than zero.
  • the period of the unlicensed resource unit may be the time interval between the start moments of two unlicensed resource units that appear continuously in the time domain, or it may also be the time interval between their respective end moments.
  • the unlicensed resource can be an aperiodic resource.
  • Aperiodic resources are continuous or uninterrupted in the time domain.
  • aperiodic resources may also be composed of unlicensed resource units. Unlike periodic resources, the time interval between two unlicensed resource units that appear consecutively is equal to zero.
  • the unlicensed resource unit may be further composed of several time units with a smaller time length, and the time unit may not be limited to milliseconds (ms), symbols, or slots.
  • an unauthorized resource unit may include 8 slots and 10 slots.
  • an unlicensed resource unit may include 8ms or 10ms.
  • an unlicensed resource unit may include (8 ⁇ 14) symbols, or (10 ⁇ 14) symbols, and so on.
  • the receiving end of the side-line communication adopts the DRX mode or the non-DRX mode, which actually describes the mode in which the receiving end monitors unlicensed resources.
  • the DRX mode means that the receiving end of sideline communication does not need to continuously or continuously monitor unlicensed resources.
  • Unauthorized resources can include monitoring duration and sleep duration. The receiving end only monitors unauthorized resources during the monitoring period, and does not monitor during the dormant period and enters dormancy.
  • the non-DRX mode means that the receiving end of side-line communication continuously or continuously monitors unlicensed resources.
  • the network device needs to configure relevant parameters for DRX for the terminal device so that the terminal device can implement DRX in an unlicensed frequency band, for example, the unlicensed frequency band of sidelink or Uulink.
  • these relevant parameters of the terminal device used for DRX may be sent by the network device to the terminal device through RRC signaling. Because RRC signaling is for the UE, or RRC signaling belongs to the dedicated signaling of the UE, and in the sidelink scenario, in order to ensure the same DRX operation between the terminal devices, the network equipment needs to configure the same configuration for the terminal devices that establish the sidelink DRX related parameters.
  • DRX related parameters are referred to as DRX parameters.
  • the DRX parameters may include continuous monitoring parameters P and preset thresholds.
  • the monitoring parameter P and the preset threshold are used for the receiving end of the sidelink to determine the mode used to monitor the unlicensed resource, for example, the DRX mode or the non-DRX mode is adopted.
  • the preset threshold when applied to a side link, may be a sidelink received signal strength indicator (sidelink received signal strength indicator, SL-RSSI) detection threshold Pd.
  • the preset threshold When applied to a Uu link, may be a received signal strength indicator (RSSI) detection threshold on the Uu link.
  • RSSI received signal strength indicator
  • this application can provide technical solutions for implementing DRX in multiple scenarios of sidelink. The following will explain one by one.
  • the receiving end performing sidelink communication is referred to as the first terminal device
  • the transmitting end performing sidelink communication is referred to as the second terminal device.
  • the first terminal device monitors the unlicensed resource, and when the preset condition is met, switches between the non-DRX mode and the DRX mode.
  • the unlicensed resource may be composed of unlicensed resource units, and the unlicensed resource units may be continuous or periodic in the time domain.
  • the first terminal device may monitor the unlicensed resource in units of unlicensed resource units.
  • two or more terminal devices communicating through sidelink can monitor unlicensed resource units in a non-DRX mode by default after establishing a connection.
  • the non-DRX mode is switched to the DRX mode.
  • the first terminal device monitors the unlicensed resource unit in the non-DRX mode.
  • the first terminal device does not monitor the sideline signal corresponding to the first terminal device and/or the corresponding first terminal device in P consecutive unlicensed resource units
  • the first terminal device switches from the non-DRX mode to the DRX mode.
  • the sideline signal corresponding to the first terminal device may be the sideline signal of the first terminal device that the destination address received on the sideline link established by the first terminal device is the first terminal device.
  • the destination address from the second terminal device is a sideline signal of the receiving address of the first terminal device.
  • the downlink signal corresponding to the first terminal device may be a downlink signal whose destination address is the receiving address of the first terminal device and sent by the network device accessed by the first terminal device.
  • the first terminal device monitors the unlicensed resource unit, and when the preset condition is met, switches between the DRX mode and the non-DRX mode.
  • the first terminal device when the first terminal device satisfies one of the following conditions, the first terminal device switches from the non-DRX mode to the DRX mode:
  • Preset condition 1 The first terminal device monitors the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device on consecutive P unlicensed resource units, but the sideline signal and/or The destination receiving address of the downlink signal is different from the receiving address of the first terminal device.
  • the destination receiving address of the side line signal is different from the receiving address of the first terminal device, indicating that the side line signal is not sent to the first terminal device.
  • the destination receiving address of the downlink signal is different from the receiving address of the first terminal device, indicating that the downlink signal is not sent to the first terminal device.
  • Preset condition 2 The first terminal device does not detect the sideline signal corresponding to the first terminal device or the downlink signal corresponding to the first terminal device on consecutive P unlicensed resource units, and the data on the consecutive P unlicensed resource units RSSI is less than the preset threshold.
  • the condition for switching from the non-DRX mode to the DRX mode is satisfied.
  • a terminal device switches to the DRX mode at the P+1th unlicensed resource unit.
  • the network device configures unlicensed resources for the receiving end (corresponding to the first terminal device) and the sending end (corresponding to the second terminal device) of the sidelink.
  • the first terminal device monitors the unlicensed resource unit in the non-DRX mode, when it meets the condition that the sideline signal of the first terminal device is not monitored on the consecutive P unlicensed resource units, and the downlink signal of the first terminal device is not monitored Next, the first terminal device switches from the non-DRX mode to the DRX mode.
  • the first terminal device monitors the downlink signal in the non-DRX mode. When it is satisfied that the downlink signal of the first terminal device is not monitored on P consecutive unlicensed resource units, the first terminal device switches from the non-DRX mode to the DRX mode.
  • the first terminal device when the first terminal device monitors the unlicensed resource unit, it can monitor the signal during part or all of the duration of the unlicensed resource unit. If the first terminal device monitors the signal during a part of the duration of the unlicensed resource unit, the part of the duration is referred to herein as the first monitoring duration.
  • the first terminal device monitors the signal during the entire duration of the unlicensed resource unit.
  • the first monitoring duration is equal to the partial duration of the unlicensed resource unit, the first terminal device monitors the signal during the first monitoring duration, and the dormancy can be performed in the unlicensed resource unit for other durations except the first monitoring duration.
  • the first terminal device may send the uplink signal or the side line signal in a time period other than the first monitoring time period.
  • the unlicensed resource unit includes monitoring duration and sleep duration.
  • the monitoring duration of the unlicensed resource unit in the DRX mode is referred to herein as the second monitoring duration.
  • the terminal device neither monitors (or receives) the downlink signal and the sideline signal, nor sends the uplink signal or the sideline signal during the sleep duration.
  • the terminal device in the non-DRX mode, in the unlicensed resource unit in other time periods except the first monitoring time period, although the terminal device does not perform signal monitoring, the terminal device can send uplink signals or sideline signals. , This is different from the sleep duration of DRX mode.
  • the relationship between the first monitoring duration and the second monitoring duration is not limited herein.
  • the first monitoring duration may be equal to, greater than, or less than the second monitoring duration.
  • the second monitoring duration may be part of the duration of the unlicensed resource unit, that is, the length of the second detection duration is less than the duration of the unlicensed resource unit.
  • the unlicensed resource unit may include multiple time units in the time domain, and the time units may be milliseconds, symbols, or slots.
  • the second monitoring time may include part of the time units in the plurality of time units. The total duration of the remaining time units in the multiple time units except the second detection time is the sleep duration.
  • the unlicensed resource unit may include several time units, and the time units are not limited to milliseconds, symbols, or time slots.
  • the second monitoring duration is taken as the partial duration of the unlicensed resource unit, and the second monitoring duration may also include some of the several time units.
  • the second monitoring duration is the first T milliseconds, the first T symbols, or the first T slots of the unlicensed resource unit, T ⁇ 1, and T is less than the number of time units included in the unlicensed resource unit.
  • the following provides an example in which a terminal device monitors an unlicensed resource unit from the non-DRX mode in conjunction with FIG. 3, and switches from the non-DRX mode to the DRX mode when a preset condition is met.
  • unlicensed resources can be used for sidelink and Uu link communication. Therefore, the monitoring of the unlicensed resource unit by the first terminal device includes the monitoring of the sideline signal and the downlink signal. At the same time, assume that the RSSI thresholds on the sidelink and Uulink are threshold 1 and threshold 2, respectively.
  • Fig. 3 is an example of DRX for unlicensed frequency bands provided by this application.
  • the network device configures periodic unlicensed resource units for the first terminal device and the second terminal device.
  • the unlicensed resource unit is denoted as CG.
  • the first terminal device monitors the signal within the first monitoring duration of each unlicensed resource unit.
  • the first monitoring duration is equal to the entire duration of the unlicensed resource unit.
  • the first terminal device is denoted as UE1.
  • UE1 monitors the sideline signal corresponding to UE1 and/or the downlink signal corresponding to UE1 within the first monitoring duration of CG_1, then UE1 continues to maintain the non-DRX mode in CG_2. UE1 continues to monitor whether there are sideline signals and/or downlink signals sent to UE1 within the first duration of CG_2. Assuming that UE1 does not monitor the sideline signal and downlink signal sent to UE1 in CG_2, UE1 continues to maintain the non-DRX mode in CG_3.
  • UE1 If there are a total of P CGs from CG_2 to CG_N, UE1 detects a sideline signal or a downlink signal, but the destination receiving address of the sideline signal or downlink signal is not the address of UE1. Or, UE1 does not detect sideline signals or downlink signals in these P CGs, and the sideline link SL-RSSI is less than the preset SL-RSSI threshold 1, and the RSSI of the Uu link is less than the preset Uu link The threshold is 2. UE1 switches to DRX mode at CG_N+1.
  • the first terminal device only needs to have no sideline signal detected on P consecutive unlicensed resource units, and the SL-RSSI is less than the threshold 1, and the first terminal device The non-DRX mode is switched to the DRX mode.
  • the first terminal device For another example, if the unlicensed resource is only used for sidelink communication, the first terminal device only needs to have no downlink signal detected on P consecutive unlicensed resource units, and the RSSI on the Uu link is less than the threshold 2, the first terminal device Then switch from the non-DRX mode to the DRX mode.
  • UE1 In the DRX mode, UE1 only monitors the signal during the second monitoring duration of CG_N+1. If the sideline signal or the downlink signal sent to UE1 is not monitored within the second monitoring period, UE1 stops monitoring the signal within the sleep period of CG_N+1 and goes to sleep. At CG_N+2, UE1 continues to maintain the DRX mode, that is, monitors the signal during the second monitoring period of CG_N+2. If the sideline signal and downlink signal sent to UE1 are not monitored during the second monitoring period of CG_N+2, Then stop signal monitoring within the sleep duration of CG_N+2 and enter sleep. By analogy, I won't repeat it.
  • UE1 uses DRX mode to monitor unlicensed resource units until the conditions for switching from DRX mode to non-DRX mode are met, and UE1 switches from DRX mode to non-DRX mode again, as shown in FIG. 4.
  • FIG. 4 is an example of the UE switching between the DRX mode and the non-DRX mode.
  • UE1 monitors the signal during the second monitoring period of the CG. If the sideline signal or downlink signal corresponding to UE1 is not monitored during the second monitoring period, UE1 is in the sleep period of the CG Stop monitoring. Assuming that UE1 starts from CG_M+1, and does not monitor the sideline signal or downlink signal sent to UE1 within the second monitoring duration of CG_M+1, the UE stops signal monitoring during the sleep duration of CG_M+1. At CG_M+2, UE1 continues to use the DRX mode, and so on.
  • UE1 Assuming that UE1 monitors the sideline signal and/or downlink signal corresponding to UE1 during the second monitoring period of CG_L, UE1 no longer enters sleep after the second monitoring period of CG_L ends, but continues to monitor CG_L until the monitoring period is equal to the first 1. Monitoring duration. At this time, the UE switches from the DRX mode to the non-DRX mode.
  • the UE1 switches from the DRX mode to the non-DRX mode Time, it is necessary to switch from the second monitoring duration to the first monitoring duration.
  • the first monitoring duration may be equal to the second monitoring duration.
  • UE1 when UE1 monitors the sideline signal and/or downlink signal corresponding to UE1 during the second monitoring period of CG_L, after the second monitoring period ends, UE1 switches from DRX mode to non-DRX mode.
  • the UE1 in the DRX mode, as long as the UE1 monitors the sideline signal or the downlink signal corresponding to the UE1 within the second monitoring period of the CG, the UE1 will switch to the non-DRX mode.
  • the first monitoring duration is a part of the unlicensed resource unit.
  • the UE1 monitors the signal during the first monitoring period. If the sideline signal and/or the downlink signal is monitored during the first monitoring period, it can perform operations other than sleep during the remaining period of the unlicensed resource unit, such as sending Upstream signal or sideline signal.
  • the non-authorized resource is a CG resource as an example. Therefore, the unlicensed resource unit is marked as CG in the figure.
  • the unauthorized resources can also be configured as other resources or forms other than the resources of the CG. Therefore, FIG. 3, FIG. 4, and FIG. 8 should not constitute any limitation on the unauthorized resources in this application.
  • the receiving end device monitors whether there is a sideline signal or downlink signal sent to the receiving end device on the unlicensed resource unit configured by the network device, and according to the monitoring result and preset conditions, it can be used in DRX mode and non-authorized resource unit. Switch between DRX modes. Since the receiving end device can adopt the DRX mode, there is no need to continuously and uninterruptedly monitor unlicensed resources, thereby saving the power consumption of the receiving end device.
  • Method 1 since the receiving end device determines whether to adopt the DRX mode or the non-DRX mode by monitoring unlicensed resources, it does not care whether the receiving end device and the sending end device are under network coverage. In other words, method 1 is applicable to scenarios where both the receiving end device and the sending end device are under network coverage, or one of the two is under network coverage, and neither of them is under network coverage.
  • Uulink's low-power consumption mode allows the terminal device to enter a sleep state at some point without monitoring the physical downlink control channel (PDCCH).
  • PDCCH physical downlink control channel
  • the existing DRX modes are all implemented based on timers. Specifically, if the network device configures DRX parameters for the terminal device, the terminal device needs to detect the PDCCH on the configured on-duration. If a PDCCH is detected during this period, the terminal device needs to start a timer, and after starting the timer, continue to detect the PDCCH. If the PDCCH is not detected again, it will enter the sleep mode.
  • the receiving end equipment does not detect the sideline signal and the downlink signal may not represent transmission
  • the end device has no signal to send. Therefore, when the receiving end monitors the signal on the unlicensed resource configured by the network device, in addition to determining whether a sideline signal or downlink signal is detected, the receiving end device also needs to detect a sideline signal or downlink signal.
  • the signal receiving energy on the unlicensed resource unit is judged, which can prevent the sender device from failing to send a signal due to unsuccessful listen before talk (LBT), which makes the receiver device misjudge the sender
  • LBT listen before talk
  • the device does not have a signal to send, but switches to the DRX mode by mistake, which may cause loss of signal or data, so as to improve the accuracy of the receiver's judgment on the signal sending status of the sender.
  • the switching between the DRX mode and the non-DRX mode is that the receiving end device determines whether to adopt the DRX mode or the non-DRX mode by monitoring the signal sent by the transmitting end device and the network device on the unlicensed resource.
  • the second terminal device instructs the first terminal device to perform mode switching.
  • FIG. 5 is a schematic flowchart of implementing DRX in an unlicensed frequency band by using method 2.
  • the second terminal device sends first indication information to the first terminal device, where the first indication information is used to instruct the first terminal device to adopt the DRX mode or the non-DRX mode.
  • the first terminal device adopts the DRX mode or the non-DRX mode according to the first indication information.
  • the first indication information received by the first terminal from the second terminal device includes multiple possible scenarios.
  • the first terminal device and the second terminal device perform side-line communication.
  • neither the first terminal device nor the second terminal device establishes a connection with the network device, or there is only the second terminal device (that is, , The sending terminal equipment) establishes a connection with the network equipment, or the two establish connections with different network equipment respectively, or the two establish connections with the same network equipment but need two terminal devices to establish synchronization with each other.
  • the second terminal device sends a sidelink-synchronisation signal block (SL-SSB) to the first terminal device.
  • SL -The SSB carries the first indication information.
  • the first indication information is used to instruct the first terminal device to adopt the non-DRX mode or the DRX mode.
  • SL-SSB includes primary synchronization signal (PSS), secondary synchronization signal (SSS), and physical broadcast channel (physical broadcast channel, PBCH).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • the first indication information may be carried in the PBCH of the SL-SSB.
  • PBCH carries 1 bit, 0 means non-DRX mode, 1 means DRX mode; or 1 means non-DRX mode, 0 means DRX mode.
  • the first terminal device receives the SL-SSB from the second terminal device, and obtains the first indication information from the PBCH. According to the first indication information, the first terminal device adopts the non-DRX mode or the DRX mode.
  • the first terminal device adopts the non-DRX mode to monitor the unlicensed resource unit after synchronizing with the second terminal device. If the first indication information indicates the DRX mode, the first terminal device adopts the DRX mode to monitor the unlicensed resource unit after synchronizing with the second terminal device.
  • the SL-SSB may be sent by the second terminal device during the synchronization process with the first terminal device, or may be sent after synchronization and connection establishment, which is not limited.
  • the second terminal device then instructs the first terminal device to adopt the DRX mode or the non-DRX mode through the first indication information.
  • the second terminal device after the second terminal device and the first terminal device establish a sidelink, the second terminal device sends the first terminal device to the first terminal device through PC5 interface-radio resource control (PC5-radio resource control, PC5-RRC) signaling.
  • PC5-radio resource control PC5-RRC
  • the terminal device sends the first instruction information. That is, the first indication information is carried in the PC5-RRC signaling and sent.
  • PC5 interface is an interface between terminal devices.
  • the second terminal device sends PC5-RRC signaling to the first terminal device, the PC5-RRC signaling carries the first indication information, and the first indication information is used to instruct the first terminal device to use the non-DRX mode or the DRX mode .
  • the first terminal device receives the first indication information from the second terminal device on the side link, and determines to subsequently adopt the DRX mode or the non-DRX mode according to the first indication information.
  • the second terminal device indicates the DRX mode or the non-DRX mode to the first terminal device.
  • the second terminal device transmits the SL-SSB within the transmission window of the SL-SSB.
  • the first terminal device receives the SL-SSB within the SL-SSB window.
  • the first terminal device demodulates the SL-SSB. If the SL-RRB does not carry the first indication information, or the PBCH of the SL-SSB carries the first indication information, and the first indication information indicates the non-DRX mode, the first terminal device receives Select a group of unlicensed parameters corresponding to the non-DRX mode from the configured unlicensed parameters.
  • the sending window of the SL-SSB is represented as a discovery reference signal (discovery reference signal, DRS) window.
  • the SL-SSB cycle is expressed as the discovery reference signal measurement timing configuration (DMTC) cycle.
  • the PBCH of the SL-SSB carries the first indication information, and the first indication information Used to indicate the DRX mode.
  • the first terminal device switches from the non-DRX mode to the DRX mode at the (N+1)th unlicensed resource unit.
  • the unlicensed resource unit in the non-DRX mode is denoted as CG_A
  • the unlicensed resource unit in the DRX mode is denoted as CG_D.
  • the period and size of CG_A and CG_D may be the same or different.
  • the size of CG_A and CG_D are the same, but the period is different.
  • the size of CG_A and the period of CG_D are the same, but the size is different. This article is not limited.
  • the second terminal device explicitly indicates the non-DRX mode or the DRX mode to the first terminal device through the first indication information.
  • the first indication information may be implicit.
  • the first indication information may be the first signal or the second signal, and the first signal or the second signal itself is used to indicate the DRX mode or the non-DRX mode.
  • the second terminal device instructs the first terminal device to monitor the unlicensed resource in a non-DRX mode or a DRX mode through a reference signal for demodulating the PBCH.
  • the network device configures two different reference signals for the second terminal device, which are hereinafter referred to as the first reference signal and the second reference signal, respectively.
  • the second terminal device sends the first reference signal, indicating that the second terminal device instructs the first terminal device to adopt the DRX mode.
  • the second terminal device sends a second reference signal, indicating that the second terminal device instructs the first terminal device to adopt the non-DRX mode.
  • the first reference signal and the second reference signal may specifically be a demodulation reference signal (demodulation reference signal, DMRS).
  • DMRS demodulation reference signal
  • the network device demodulates two DMRSs of the PBCH in the SL-SSB for the first terminal device, and the reference sequences of the two DMRSs are different.
  • the first terminal device determines the reference sequence of the DMRS through blind detection, thereby determining to adopt the non-DRX mode or the DRX mode. For example, if the first terminal device detects the DMRS of the first reference sequence, it means that the second terminal device indicates the DRX mode. The first terminal device detects the DMRS of the second reference sequence, which indicates that the second terminal device indicates the non-DRX mode.
  • the second terminal device may also implicitly indicate the DRX mode or the non-DRX mode through other reference signals or signals other than the DMRS.
  • the network device configures two channel state information reference signals (channel state information reference signals, CSI-RS) with different reference sequences.
  • One type of CSRS is used to indicate the DRX mode
  • the other type of CSI-RS is used to indicate the non-DRX mode.
  • the first terminal device may determine to adopt the DRX mode or the non-DRX mode according to the detected reference sequence of the CSRS.
  • the sending end of the sidelink actively instructs the mode switching of the receiving end, which can avoid the problem of switching delay that exists when the receiving end monitors the signal of the sending end to determine the mode switch in mode 1. Therefore, Method 2 can effectively reduce the delay of mode switching.
  • the above method 1 and method 2 are both non-DRX mode and DRX mode switching through the operation of the sidelink link itself.
  • the following provides a method for assisting the receiving end of the sidelink (that is, the first terminal device) to perform mode switching through the Uu link, as shown in the following manner 3.
  • the second terminal device indicates the DRX mode or the non-DRX mode to the network device through the Uu link with the network device. After learning the mode indicated by the second terminal device, the network device notifies the first terminal device of the mode indicated by the second terminal device through the Uu link between the network device and the first terminal device.
  • FIG. 7 is another schematic flowchart for implementing DRX provided by this application.
  • the second terminal device sends second indication information to the network device.
  • the second indication information is used to indicate that the first terminal device adopts the DRX mode or the non-DRX mode.
  • the network device receives the second indication information from the second terminal device, and determines the mode indicated by the second terminal device.
  • the network device sends first indication information to the first terminal device, where the first indication information is used to indicate the DRX mode or the non-DRX mode.
  • the first terminal device receives the first indication information from the network device.
  • the first terminal device adopts the DRX mode or the non-DRX mode according to the first indication information.
  • method 3 is applicable to a scenario where both the first terminal device and the second terminal device are under network coverage.
  • the first terminal device and the second terminal device establish Uu links with the network equipment respectively.
  • the first terminal device and the second terminal device need to register their respective side link physical properties with the network equipment.
  • the address information of the layer that is, the address information of the sidelink layer_1.
  • the network equipment in the process shown in FIG. 7 refers to the access network equipment of the first terminal device and the second terminal device.
  • the terminal device When the terminal device registers the address information of the sidelink physical layer with the network device, it means that the terminal device provides the address information of its sidelink physical layer to the access network device.
  • the address information of the side link physical layer of the first terminal device is referred to as the first address information.
  • the address information of the side link physical layer of the second terminal device is called second address information.
  • the method 600 further includes step 640 and step 650.
  • the first terminal device sends the first address information of the first terminal device to the network device, and the second terminal device sends the second address information of the second terminal device to the network device.
  • the network equipment respectively receives the first address information from the first terminal device and the second address information from the second terminal device.
  • the network device establishes a mapping relationship between the respective Uulink physical layer address information, the first address information, and the second address information of the first terminal device and the second terminal device.
  • the access network equipment receives the first address information of the first terminal device and the second address information of the second terminal device, and then combines the respective Uulink physical layer address information of the first terminal device and the second terminal device to establish both Correspondence between.
  • the access network equipment can obtain the address information of the Uulink physical layer of the first terminal device and the Uulink physical layer information of the second terminal device. Address information.
  • the address information of the sidelink physical layer of the first terminal device and the second terminal device is not known to the access network equipment.
  • the access network device When the access network device instructs the first terminal device to indicate the DRX mode or the non-DRX mode, the access network device receives the second indication information from the second terminal device, and the access network device establishes a Uulink physical After the mapping relationship between the layer address information and the sidelink physical layer address information, the access network device can determine the sidelink physical layer address information of the second terminal device according to the Uulink physical layer address information of the received second indication information. Furthermore, according to the mapping relationship, the access network device can determine the sidelink physical layer address information of the terminal device (that is, the first terminal device) that establishes the sidelink with the second terminal device, and finally determine the Uulink physical layer address of the first terminal device Layer address information. Finally, the access network device sends the first indication information, and the receiving address of the first indication information is the Uulink physical layer address information of the first terminal device.
  • the second terminal device may notify the network device of the mode of the first terminal device.
  • the network device receives the notification message from the second terminal device, according to the mapping relationship, can determine the first address information corresponding to the second address information of the second terminal device, and indicate the mode to the first terminal device corresponding to the first address information. Therefore, the first terminal device can also switch between the non-DRX mode and the DRX mode.
  • the second indication information may be explicit or implicit, which will be described separately below.
  • the second indication information explicitly indicates the DRX mode or the non-DRX mode.
  • the second terminal device sends the first type of PUCCH to the network device, and the first type of PUCCH carries the second indication information.
  • the second indication information is used to indicate the DRX mode or the non-DRX mode.
  • the second terminal device sends a PUSCH to the network device, and the PUSCH carries the second indication information.
  • the second indication information may be carried in a certain MAC CE of the PUSCH.
  • the "certain MAC CE" may be configured by the network device, or specified by a standard protocol, or negotiated or agreed by the network device and the terminal device.
  • the network device can determine the address of the terminal device that sends the PUSCH according to the resource location of the received PUSCH. Therefore, the network device can determine the Uulink of the second terminal device. RNTI address. According to the address information and the mapping relationship of the sidelink registered by the second terminal device, the network device can determine the Uulink RNTI address of the receiving end of the sidelink (that is, the first terminal device). Further, the network device notifies the first terminal device of the non-DRX mode or the DRX mode indicated by the second terminal device.
  • the second indication information implicitly indicates the DRX mode or the non-DRX mode.
  • the second terminal device sends second indication information to the network device.
  • the second indication information is a first scheduling request (scheduled request, SR) or a second SR.
  • the first SR is used to indicate the DRX mode
  • the second SR is used to indicate non-DRX mode.
  • the reference sequences constituting the first SR and the second SR are different.
  • the second terminal device sends second indication information to the network device, where the second indication information is the first PUCCH of the second type or the second PUCCH of the second type, and the first PUCCH is used to indicate the DRX mode,
  • the second PUCCH is used to indicate the non-DRX mode.
  • the reference sequences constituting the first PUCCH and the second PUCCH are different.
  • the first type of PUCCH may be a PUCCH that occupies one slot in the time domain
  • the second type of PUCCH may be a PUCCH that does not occupy one slot in the time domain. Therefore, the first type of PUCCH may also be referred to as a long PUCCH, and the second type of PUCCH may also be referred to as a short PUCCH.
  • the network device receives one of the above-mentioned signals, and learns the RNTI address of the corresponding sidelink receiving end and the mode that the receiving end needs to switch. Further, the receiving end of the sidelink can be notified by the following method.
  • the network device sends DCI to the first terminal device.
  • the DCI is scrambled by using the RNTI address of the first terminal device.
  • the DCI carries first indication information, and the first indication information is used to indicate the non-DRX mode or the DRX mode.
  • the first terminal device receives the DCI, uses its own RNTI address to descramble the DCI, and obtains the first indication information in the DCI, so as to determine the non-DRX mode or the DRX mode indicated by the second terminal device.
  • the network device sends DCI to the first terminal device, and the DCI is scrambled using the RNTI address of the first terminal device. DCI is used to schedule PDSCH, and PDSCH carries first indication information.
  • the first terminal device receives the DCI and descrambles the DCI with its own RNTI address. Further, the first terminal device receives the PDSCH according to the DCI, and obtains the first indication information from the PDSCH, so that the DRX mode or the non-DRX mode indicated by the second terminal device can be determined.
  • the second terminal device first sends the second indication information to the network device through the U link.
  • the second indication information may be carried in the PUSCH of the first type, or the second indication information may specifically be the second indication of the second type.
  • the second indication information is used to indicate the DRX mode or the non-DRX mode.
  • the network device receives the second indication information from the second terminal device on the Ulink, and learns the DRX mode or the non-DRX mode indicated by the second terminal device.
  • the network device then sends the first indication information to the first terminal device through Uulink.
  • the first indication information is used to indicate that the first terminal device adopts the DRX mode or the non-DRX mode.
  • the first indication information may be carried in the DCI, or carried in the PDSCH scheduled by the DCI, or the like.
  • the first terminal device receives the first indication information from the network device through the U link, and if the first indication information indicates the DRX mode, it switches from the non-DRX mode to the DRX mode.
  • the network device may also carry the first indication information through SSB or RRC signaling, so as to indicate the DRX mode or the non-DRX mode to the first terminal device.
  • the first terminal device Assuming that the first terminal device adopts the non-DRX mode before receiving the first instruction information, after receiving the first instruction information, the first terminal device switches to the DRX mode in CG_1.
  • the U link shown in Figure 8 may work in an unlicensed frequency band and/or an unlicensed frequency band.
  • Sidelink can work in unlicensed frequency bands.
  • both the first indication information and the second indication information may be sent through a Uulink authorized frequency band, or may be sent through an unlicensed frequency band, or one of them is sent through a licensed frequency band and the other is sent through an unlicensed frequency band, which is not limited.
  • the first terminal device is instructed to adopt the DRX mode or the non-DRX mode through the assistance of the U link.
  • the network device indicates to the first terminal device through DCI or PDSCH, there will be a certain time delay, such as the command delay shown in FIG. 8.
  • the sender of the sidelink forwards the first indication information through the network device, which can avoid the unsuccessful LBT on the sidelink of the sender, which is used to indicate the mode switch of the first terminal device
  • the shortcoming that the instruction information can not be sent out in time can reduce the delay of mode switching.
  • the first terminal device determines to subsequently adopt the DRX mode or the non-DRX mode according to the received first indication information.
  • the network device can configure the unlicensed resources in the DRX mode and the non-DRX mode respectively. For example, the network device configures two sets of unlicensed parameters, one of the two sets of unlicensed parameters corresponds to the DRX mode, and the other set of unlicensed parameters corresponds to the non-DRX mode.
  • the first terminal device selects a set of unlicensed parameters corresponding to the DRX mode. If the first indication information indicates that the first terminal device adopts the non-DRX mode, the first terminal device selects another set of unlicensed parameters corresponding to the non-DRX mode.
  • the unlicensed parameter mainly includes the period of the unlicensed resource unit and the monitoring duration in the unlicensed resource unit.
  • the unlicensed parameter corresponding to the non-DRX mode includes the duration and period of the unlicensed resource unit, and the first monitoring duration of the unlicensed resource unit.
  • the corresponding unlicensed resource in the DRX mode includes the duration and period of the unlicensed resource unit, and the second monitoring duration of the unlicensed resource unit.
  • the network device in the DRX mode, is configured with the duration of the unlicensed resource unit and the second monitoring duration, and the sleep duration can be obtained.
  • the duration of the unlicensed resource unit, the second monitoring duration, and the sleep duration there is no limitation on the duration of the unlicensed resource unit, the second monitoring duration, and the sleep duration that the network device can configure.
  • the network device configures the unlicensed parameters corresponding to the DRX mode and the non-DRX mode, and sends them to the terminal device that establishes the sidelink. After the receiving end of the sidelink switches to a mode, it chooses to use a set of unlicensed parameters corresponding to the currently adopted mode (ie, DRX mode or non-DRX mode).
  • the above two sets of unlicensed parameters are the unlicensed resources in the DRX mode and the non-DRX mode.
  • one set of unlicensed parameters is the unlicensed resources in the DRX mode
  • the other set of unlicensed parameters is the unlicensed resources in the non-DRX mode.
  • FIG. 9 is a schematic structural diagram of a terminal device 800 provided by this application.
  • the terminal device 800 includes a transceiving unit 810 and a processing unit 820.
  • the terminal device 800 corresponds to the first terminal device in Mode 1 of the foregoing method embodiment.
  • the functions of each unit of the terminal device 800 are as follows.
  • the transceiving unit 810 is configured to monitor P unlicensed resource units in a non-DRX mode, where the non-DRX mode is that the transceiving unit 810 monitors signals within the first monitoring duration of the P unlicensed resource units;
  • the processing unit 820 is configured to control the side line signal corresponding to the terminal device and/or the downlink signal corresponding to the terminal device when the transceiving unit 810 does not monitor P consecutive unlicensed resource units
  • the transceiving unit 810 switches from the non-DRX mode to the DRX mode, wherein, in the DRX mode, the unlicensed resource unit includes a second monitoring duration and a sleep duration, and the DRX mode indicates that the terminal device is in If the signal is monitored during the second monitoring period, and the side line signal corresponding to the terminal device and/or the downlink signal corresponding to the terminal device is not monitored during the second monitoring period, in the dormancy Stop monitoring within the time period, P ⁇ 1 and P is an integer.
  • the situation that the transceiving unit 810 does not detect the sideline signal and/or the downlink signal corresponding to the terminal device is one or more of the following:
  • the transceiving unit 810 monitors the sideline signal corresponding to the terminal device and/or the downlink signal corresponding to the terminal device on P consecutive unlicensed resource units, the sideline signal and/or the downlink signal
  • the destination address of the signal is different from the address of the terminal device; or,
  • the transceiving unit 810 does not detect the sideline signal corresponding to the terminal device and/or the downlink signal corresponding to the terminal device on P consecutive unlicensed resource units, and P consecutive unlicensed resource units
  • the received signal strength on is lower than the preset threshold.
  • processing unit 820 is further configured to:
  • the unlicensed resource unit includes multiple time units in the time domain
  • the second monitoring duration includes a part of the multiple time units
  • the time unit is any one of the following : Milliseconds, symbols, or time slots.
  • the terminal device 800 corresponds to the first terminal device in Manner 2 or Manner 3 of the foregoing method embodiment.
  • the functions of each unit of the terminal device 800 are as follows.
  • the transceiver unit 810 is configured to receive first indication information, where the first indication information is used to instruct the terminal device to adopt a non-DRX mode or a DRX mode,
  • the non-DRX mode is that the terminal device monitors the signal within the first monitoring period of the unlicensed member unit
  • the DRX mode is that the terminal device monitors the signal within the second monitoring period of the unlicensed resource unit Monitoring signals, and in the case where the sideline signal corresponding to the terminal device and/or the downlink signal corresponding to the terminal device is not monitored within the second monitoring time period, within the sleep duration of the unlicensed resource unit Stop monitoring
  • the processing unit 820 is configured to control the transceiver unit 810 to adopt the DRX mode or the non-DRX mode according to the first indication information.
  • the first indication information is carried in the MAC CE or DCI of the SSB, RRC, and PDSCH from the network device.
  • the first indication information is carried in SL-SSB or PC5-RRC signaling from the second terminal device.
  • the first indication information is a first signal or a second signal
  • the first signal is used to instruct the terminal device to adopt the DRX mode
  • the second signal is used to instruct the terminal The device adopts the non-DRX mode.
  • the first signal is a first DMRS
  • the second signal is a second DMRS
  • reference sequences constituting the first DMRS and the second DMRS are different.
  • processing unit 820 is further configured to register the address information of the physical layer of the side link of the terminal device with the network device.
  • the address information of the physical layer of the side link is the address information of the sidelink layer_1.
  • the terminal device 800 may be a receiving end device in sideline communication.
  • the terminal device 800 may completely correspond to the first terminal device in the method embodiment.
  • the transceiving unit 810 may be a transceiver.
  • the transceiver can be replaced by a receiver or transmitter.
  • the processing unit 820 may be a processing device.
  • the terminal device 800 may be a circuit system installed in the first terminal device, and the circuit system may be a chip, an integrated circuit, or a system on chip (SoC) or the like.
  • the transceiving unit 810 may be a communication interface.
  • the transceiving unit 810 may be an input/output interface or an interface circuit.
  • the input and output circuit may include an input interface and an output interface.
  • the interface circuit may include an input interface circuit and an output interface circuit.
  • the processing unit 820 may be a processing circuit.
  • the function of the processing device can be realized by hardware, or by hardware executing corresponding software.
  • the processing device may include one or more memories and one or more processors.
  • the one or more memories are used to store computer programs, and the one or more processors read and execute the computer programs stored in the one or more memories, so that the terminal device 800 executes various method embodiments. Operations and/or processing performed by the first terminal device.
  • the processing device may also only include the one or more processors, and the one or more storages are located outside the processing device.
  • the one or more processors are connected to the one or more memories through circuits/wires to read and execute computer programs stored in the memories.
  • the transceiving unit 810 may be a radio frequency device in a terminal device, and the processing unit 820 may be a baseband device.
  • FIG. 10 is a schematic structural diagram of a terminal device 900 provided by this application.
  • the terminal device 900 includes a transceiving unit 910 and a processing unit 920.
  • the transceiver unit 910 is configured to send first indication information or second indication information, where the first indication information or the second indication information is used to instruct the first terminal device to adopt the non-DRX mode or the non-DRX mode;
  • the non-DRX mode is that the first terminal device monitors the signal during the first monitoring period of the unlicensed resource unit
  • the DRX mode is that the first terminal device monitors the signal during the second monitoring period of the unlicensed resource unit Monitoring signal, and in the case that the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored within the second monitoring period, the unlicensed resource unit Stop monitoring within the sleep duration.
  • the first indication information is carried in the SL-SSB or PC5-RRC signaling sent by the transceiver unit 910.
  • the second indication information is carried in the MAC CE of the PUSCH or the PUCCH of the first type sent by the transceiver unit 910.
  • the second indication information is a first signal or a second signal
  • the first signal is used to instruct the first terminal device to use the DRX mode
  • the second signal is used to indicate the The first terminal device adopts the non-DRX mode.
  • the first signal is a first DMRS
  • the second signal is a second DMRS
  • reference sequences constituting the first DMRS and the second DMRS are different.
  • the first signal is a first PUCCH of a second type
  • the second signal is a second PUCCH of a second type
  • reference sequences constituting the first PUCCH and the second PUCCH are different.
  • the first signal is a first SR
  • the second signal is a second SR
  • the reference sequences constituting the first SR and the second SR are different.
  • the processing unit 920 is configured to register the address information of the physical layer of the side link of the terminal device with the network device.
  • the address information of the physical layer of the side link is the address information of the sidelink layer_1.
  • the terminal device 900 may be a sender device in sideline communication.
  • the terminal device 900 may completely correspond to the second terminal device in the method embodiment.
  • the transceiving unit 910 may be a transceiver.
  • the transceiver can be replaced by a receiver or transmitter.
  • the processing unit 920 may be a processing device.
  • the terminal device 900 may be a circuit system installed in the second terminal device, and the circuit system may be a chip, an integrated circuit, or a system on chip (SoC) or the like.
  • the transceiving unit 910 may be a communication interface.
  • the transceiving unit 910 may be an input/output interface or an interface circuit.
  • the input and output circuit may include an input interface and an output interface.
  • the interface circuit may include an input interface circuit and an output interface circuit.
  • the processing unit 920 may be a processing circuit.
  • the function of the processing device can be realized by hardware, or by hardware executing corresponding software.
  • the processing device may include one or more memories and one or more processors.
  • the one or more memories are used to store computer programs, and the one or more processors read and execute the computer programs stored in the one or more memories, so that the terminal device 900 executes various method embodiments. Operations and/or processing performed by the second terminal device.
  • the processing device may also only include the one or more processors, and the one or more storages are located outside the processing device.
  • the one or more processors are connected to the one or more memories through circuits/wires to read and execute computer programs stored in the memories.
  • the transceiving unit 910 may be a radio frequency device in a terminal device, and the processing unit 920 may be a baseband device.
  • FIG. 11 is a schematic structural diagram of a communication device 1000 provided by this application. As shown in FIG. 11, the communication device 1000 includes a transceiving unit 1100 and a processing unit 1200.
  • the transceiving unit 1100 is configured to receive second indication information from the second terminal device, where the second indication information is used to instruct the first terminal device to adopt the non-DRX mode or the DRX mode,
  • the non-DRX mode is that the first terminal device monitors a signal within a first monitoring time period in an unlicensed resource unit
  • the DRX mode is that the first terminal device monitors a signal within a second monitoring time period in an unlicensed resource unit Monitoring signal, and in the case that the sideline signal corresponding to the first terminal device and/or the downlink signal corresponding to the first terminal device is not monitored within the second monitoring period, the unlicensed resource unit Stop monitoring within the dormant period;
  • the processing unit 1200 is further configured to control the transceiving unit 1100 to send first instruction information to the first terminal device according to the second instruction information received by the transceiving unit 1100, and the first instruction information It is used to indicate the non-DRX mode or the DRX mode.
  • the second indication information is carried in the PUSCH, the MAC CE of the PUSCH, or the PUCCH of the first type from the second terminal device.
  • the second indication information is a first signal or a second signal
  • the first signal is used to instruct the first terminal device to use the DRX mode
  • the second signal is used to indicate the The first terminal device adopts the non-DRX mode
  • the transceiving unit 1100 is configured to send the first indication information to the first terminal device when the first signal from the second terminal device is received, and the first indication information is used to indicate The DRX mode;
  • the receiving unit 1100 is configured to send the first instruction information to the first terminal device when the second signal from the second terminal device is received, and the first instruction information is used for To indicate the non-DRX mode.
  • the first signal is a first PUCCH of a second type
  • the second signal is a second PUCCH of a second type
  • the reference sequences constituting the first PUCCH and the second PUCCH are different .
  • the first signal is a first SR
  • the second signal is a second SR
  • the reference sequences constituting the first SR and the second SR are different.
  • the transceiving unit 1100 is configured to receive first address information from the side link physical layer of the first terminal device and the side link physical layer from the second terminal device ’S second address information;
  • the processing unit 1200 is further configured to establish a mapping relationship between the first address information, the second address information, and the respective air interface link physical layer address information of the first terminal device and the second terminal device;
  • the processing unit 1200 is further configured to determine the second address information according to the address information of the air interface link physical layer of the second indication information received by the transceiver unit 1100; and, according to the second address Information and the mapping relationship, and determine the first address information corresponding to the second address information;
  • the transceiving unit 1100 is further configured to send the first indication information to the first terminal device corresponding to the first address information determined by the processing unit 1200.
  • the address information of the physical layer of the air interface link is the address information of Uulink layer_1.
  • the address information of the side link physical layer is the address information of sidelink layer_1.
  • the first indication information is carried in the DCI or PDSCH sent by the transceiver unit 1100.
  • the communication apparatus 1000 may be a network device, for example, an access network device.
  • the communication device 1000 may completely correspond to the network device in the method embodiment.
  • the transceiving unit 1100 may be a transceiver.
  • the transceiver can be replaced by a receiver or transmitter.
  • the processing unit 1200 may be a processing device, for example, a processor.
  • the communication device 1000 may be a circuit system installed in a network device, and the circuit system may be a chip, an integrated circuit, or a system on chip (system on chip, SoC), or the like.
  • the transceiving unit 1100 may be a communication interface.
  • the transceiving unit 1100 may be an input/output interface or an interface circuit.
  • the input and output circuit may include an input interface and an output interface.
  • the interface circuit may include an input interface circuit and an output interface circuit.
  • the processing unit 1200 may be a processing circuit.
  • the function of the processing device can be realized by hardware, or by hardware executing corresponding software.
  • the processing device may include one or more memories and one or more processors.
  • the one or more memories are used to store computer programs, and the one or more processors read and execute the computer programs stored in the one or more memories, so that the communication device 1000 executes various method embodiments. Operations and/or processing performed by network devices.
  • the processing device may also only include the one or more processors, and the one or more storages are located outside the processing device.
  • the one or more processors are connected to the one or more memories through circuits/wires to read and execute computer programs stored in the memories.
  • the transceiving unit 1100 may be a radio frequency device in a network device
  • the processing unit 1200 may be a baseband device.
  • the terminal device 10 includes: one or more processors 11, one or more memories 12, and one or more communication interfaces 13.
  • the processor 11 is used to control the communication interface 13 to send and receive signals
  • the memory 12 is used to store computer programs
  • the processor 11 is used to call and run the computer programs from the memory 12, so that the terminal device 10 executes each method implementation of this application. In this example, the processing and/or operation performed by the first terminal device.
  • the processor 11 may have the function of the processing unit 520 shown in FIG. 6, and the communication interface 13 may have the function of the transceiving unit 810 shown in FIG. 9.
  • the operation and/or processing performed by the processor 11 may refer to the description of the processing unit 820 in FIG. 9, and the operation and/or processing performed by the communication interface 13 may refer to the description of the transceiver unit 810.
  • processing unit 810 in the device embodiment may be replaced by the processor 11, and the transceiver unit 820 in the device embodiment may be replaced by the communication interface 13.
  • the terminal device 20 includes: one or more processors 21, one or more memories 22, and one or more communication interfaces 23.
  • the processor 21 is used to control the communication interface 23 to send and receive signals
  • the memory 22 is used to store computer programs
  • the processor 21 is used to call and run the computer programs from the memory 22, so that the terminal device 20 executes the implementation of the methods of this application. In this example, the processing and/or operation performed by the second terminal device.
  • the processor 21 may have the function of the processing unit 920 shown in FIG. 10, and the communication interface 23 may have the function of the transceiving unit 910 shown in FIG.
  • the operation and/or processing performed by the processor 21 may refer to the description of the processing unit 920 in FIG. 10, and the operation and/or processing performed by the communication interface 23 may refer to the description of the transceiver unit 910.
  • processing unit 910 in the device embodiment may be replaced by the processor 21, and the transceiving unit 920 in the device embodiment may be replaced by the communication interface 23.
  • the processor 31 may be a baseband device in the second terminal device, and the communication interface 33 may be a radio frequency device in the second terminal device.
  • FIG. 14 is a schematic structural diagram of the communication device 30 provided by this application.
  • the communication device 30 includes: one or more processors 31, one or more memories 32, and one or more communication interfaces 33.
  • the processor 31 is used to control the communication interface 33 to send and receive signals
  • the memory 32 is used to store computer programs
  • the processor 31 is used to call and run the computer programs from the memory 32, so that the communication device 30 executes each method implementation of the present application.
  • the processor 31 may have the function of the processing unit 1200 shown in FIG. 11, and the communication interface 33 may have the function of the transceiving unit 1100 shown in FIG.
  • the operations and/or processing performed by the processor 31 may refer to the description of the processing unit 1200 in FIG. 11, and the operations and/or processing performed by the communication interface 33 may refer to the description of the transceiver unit 1100.
  • processing unit 1100 in the device embodiment may be replaced by the processor 31, and the transceiver unit 1200 in the device embodiment may be replaced by the communication interface 33.
  • the processor 31 may be a baseband device in a network device
  • the communication interface 33 may be a radio frequency device in the network device.
  • the memory and the processor in the foregoing device embodiments may be physically independent units, or the memory and the processor may also be integrated.
  • this application also provides a computer-readable storage medium having computer instructions stored in the computer-readable storage medium.
  • the computer instructions When the computer instructions are run on a computer, the computer executes the unlicensed frequency band provided by this application. The operation and/or processing performed by the first terminal device in the DRX method.
  • the present application also provides a computer-readable storage medium, which stores computer instructions, and when the computer instructions run on a computer, the computer executes the DRX for unlicensed frequency bands provided by this application.
  • the operation and/or processing performed by the second terminal device in the method is not limited to, but not limited
  • the present application also provides a computer-readable storage medium, which stores computer instructions, and when the computer instructions run on a computer, the computer executes the DRX for unlicensed frequency bands provided by this application.
  • the computer program product includes computer program code.
  • the computer program code runs on a computer, the computer executes the DRX method for unlicensed frequency bands provided by this application. Operations and/or processing performed by the first terminal device.
  • the computer program product includes computer program code.
  • the computer program code runs on a computer, the computer executes the DRX method for unlicensed frequency bands provided by this application. Operations and/or processing performed by the second terminal device.
  • This application also provides a computer program product.
  • the computer program product includes computer program code.
  • the computer program code runs on a computer, the computer executes the DRX method for unlicensed frequency bands provided by this application. Operations and/or processing performed by network devices.
  • the present application also provides a terminal device, including a processor and an interface circuit, the interface circuit is used to receive computer code or instructions, and transmit to the processor, the processor is used to run the computer code or instructions to Perform operations and/or processing performed by the first terminal device in the DRX method for unlicensed frequency bands provided in this application.
  • the present application also provides a terminal device, including a processor and an interface circuit, the interface circuit is used to receive computer code or instructions, and transmit to the processor, the processor is used to run the computer code or instructions to Perform operations and/or processing performed by the second terminal device in the DRX method for unlicensed frequency bands provided in this application.
  • the present application also provides a communication device, including a processor and an interface circuit, the interface circuit is used to receive computer code or instructions, and transmit to the processor, the processor is used to run the computer code or instructions to Perform operations and/or processing performed by the network device in the DRX method for unlicensed frequency bands provided in this application.
  • the application also provides a chip including one or more processors.
  • the one or more processors are used to execute a computer program stored in the memory to execute operations and/or processing performed by the first terminal device in any method embodiment.
  • the memory for storing the computer program is provided independently of the chip.
  • the chip may also include one or more communication interfaces.
  • the one or more communication interfaces may be input/output interfaces, input/output circuits, and the like.
  • the chip may also include one or more of the memories.
  • the application also provides a chip including one or more processors.
  • the one or more processors are used to execute a computer program stored in the memory to execute operations and/or processing performed by the second terminal device in any method embodiment.
  • the memory for storing the computer program is provided independently of the chip.
  • the chip may also include one or more communication interfaces.
  • the one or more communication interfaces may be input/output interfaces, input/output circuits, and the like.
  • the chip may also include one or more of the memories.
  • the present application also provides a chip that includes one or more processors, and the one or more processors are used to execute a computer program stored in a memory to perform operations performed by a network device in any method embodiment And/or processing.
  • the memory for storing the computer program is provided independently of the chip.
  • the chip may also include one or more communication interfaces.
  • the one or more communication interfaces may be input/output interfaces, input/output circuits, and the like.
  • the chip may also include one or more of the memories.
  • the present application also provides a wireless communication system, including one or more of the first terminal device, the second terminal device, and the network device in the embodiments of the present application.
  • the processor mentioned in the above embodiment has the ability to process signals.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the processor can be a general-purpose processor, digital signal processor (digital signal processor, DSP), application specific integrated circuit (ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic Devices, discrete gates or transistor logic devices, discrete hardware components.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as execution and completion by a hardware encoding processor, or execution and completion by a combination of hardware and software modules in the encoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory mentioned in the above embodiment may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrical Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • unit used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in a process and/or thread of execution.
  • the components may be located on one computer and/or distributed between two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • a component can be based on data that has one or more data packets (for example, data from two components that interact with another component between a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Signals are communicated through local and/or remote processes.
  • data packets for example, data from two components that interact with another component between a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请提供一种用于非授权频段的DRX的方法和终端装置，可以应用于终端设备采用侧行链路或Uu链路进行通信的场景。信号的接收端通过在网络设备配置的非授权资源上监测侧行信号和/或下行信号，并在满足相应的预设条件的情况下，进行非DRX模式和DRX模式之间的切换。或者，发送端直接指示接收端采用DRX模式或非DRX模式，或者，发送端通过网络设备的辅助，向接收端间接地指示接收端采用DRX模式或者非DRX模式，可以在侧行链路或Uu链路的非授权频段实现接收端的DRX，从而节省接收端的功耗。

Description

用于非授权频段的DRX的方法和终端装置
本申请要求于2019年11月30日提交中国专利局、申请号为201911209066.0、申请名称为“用于非授权频段的DRX的方法和终端装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，更具体地，涉及一种用于非授权频段的DRX的方法和终端装置。
背景技术
和长期演进(long term evolution,LTE)相比，新空口(new radio,NR)支持更好的数据传输速率。在非授权频段中，发射端在先听后说(listen before talk，LBT)成功之后，才能向接收端发送数据。对接收端而言，为了避免数据丢失，通常会持续性地监测信道。然而，终端设备的电池寿命对用户体验有着较大影响，持续性地监测信道势必造成终端设备的功耗高，从而影响终端设备的续航时长，因此如何降低终端设备的功耗成为亟待解决的问题。
发明内容
本申请提供一种用于非授权频段的DRX的方法和终端装置，通过配置终端设备在保证通信效率的前提下采用特殊的信道监测机制，能够节省工作于非授权频段的终端设备的功耗。
第一方面，本申请提供一种用于非授权频段的DRX的方法，在该方法中第一终端装置在非DRX模式下监测P个非授权资源单元，非DRX模式为第一终端装置在所述P个非授权资源单元内的第一监测时长内监测信号；在第一终端装置在连续P个非授权资源单元未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，第一终端装置从非DRX模式切换到DRX模式，其中，在DRX模式下，非授权资源单元包括第二监测时长和休眠时长，DRX模式为第一终端装置在所述第二监测时长内监测信号，并在所述第二监测时长内未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，在所述休眠时长内停止监测，P≥1且P为整数。
在本技术方案中，支持sidelink的接收端设备(对应第一终端装置)在网络设备配置的非授权资源上进行信号监测，在满足连续P个非授权资源单元未监测到属于接收端设备的侧行信号和/或下行信号的情况下，接收端设备自主从非DRX模式切换到DRX模式。
接收端设备通过在非授权频段监测是否有属于接收端设备的侧行信号和/或下行信号，并在满足切换条件的情况下，从非DRX模式切换到DRX模式，从而不需要接收端设备持续地对非授权资源进行监测，可以节省功耗。
本申请的实施例既可以应用于基于非授权频段的sidelink场景中，也可以应用于基于非授权频段的Uu link场景中。
结合第一方面，在第一方面的某些实现方式中，所述未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况为以下一种或多种：
第一终端装置在连续P个非授权资源单元上监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号，所述侧行信号和/或所述下行信号的目的地址不同于第一终端装置的地址；或者，
第一终端装置在连续P个非授权资源单元上未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号，且连续P个非授权资源单元上的接收信号强度低于预设门限。
考虑到通信设备在采用非授权频段进行通信场景下，接收端设备未监测到侧行信号和下行信号可能并不代表发送端设备没有信号需要发送，例如，发送端设备可能因为LBT失败而导致信号未发出。因此，接收端在网络设备配置的非授权资源上监测信号时，除了确定未监测到侧行信号或下行信号，接收端设备还需要在未监测到侧行信号和/或下行信号的情况下，进一步对非授权资源单元上的信号接收能量进行判断，可以避免发送端设备因LBT不成功导致无法发出信号，使得接收端设备误判发送端设备没有信号需要发送，而错误地切换到DRX模式，由此可能带来信号或数据的丢失的情况，可以提高接收端对发送端的信号发送情况的判断的准确率。
结合第一方面，在第一方面的某些实现方式中，第一终端装置从非DRX模式切换到DRX模式之后，所述方法还包括：第一终端装置在DRX模式下监测非授权资源单元；第一终端装置在所述第二监测时长内监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，第一终端装置从DRX模式切换到非DRX模式。
结合第一方面，在第一方面的某些实现方式中，非授权资源单元在时域上包括多个时间单元，所述第二监测时长包括所述多个时间单元中的部分时间单元，所述时间单元为以下任意一项：毫秒、符号或时隙。
第二方面，本申请提供了一种用于非授权频段的DRX的方法，该方法包括：第一终端装置接收第一指示信息，第一指示信息用于指示第一终端装置采用非DRX模式或DRX模式，其中，非DRX模式为第一终端装置在非授权资源单元内的第一监测时长内监测信号，DRX模式为第一终端装置在非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，在非授权资源单元的休眠时长内停止监测；第一终端装置根据第一指示信息，采用DRX模式或非DRX模式。
通过侧行链路进行通信的接收端设备，根据来自侧行链路的发送端设备的第一指示信息，进行DRX模式和非DRX模式的切换。或者，发送端设备向网络设备指示接收端设备采用DRX模式或非DRX模式，再由网络设备通过第一指示信息通知接收端设备采用DRX模式或非DRX模式，也即，通过Uu链路辅助接收端设备实现DRX。从而，可以节省接收端设备的功耗。
另外，sidelink的发送端通过主动指示接收端的模式切换，可以避免第一方面的方法中由接收端监测发送端的信号来确定模式切换，而存在切换延时的问题。因此，和第一方 面的方案相比，第二方面的方法或其任意的实现方式可以有效降低切换的延时。
结合第二方面，在第二方面的某些实现方式中，第一指示信息携带于来自网络设备的SSB、RRC信令、PDSCH的MAC CE或DCI中。
网络设备可以通过多种方式向第一终端装置发送第一指示信息，提高了指示的灵活性。
结合第二方面，在第二方面的某些实现方式中，第一指示信息为第一信号或第二信号，所述第一信号用于指示第一终端装置采用DRX模式，所述第二信号用于指示第一终端装置采用非DRX模式。
通过设置两种不同的信号，每一种信号本身用于指示DRX模式或非DRX模式中的一种。从而，第一终端装置通过监测信号本身，可以确定采用DRX模式或非DRX模式。通过这种隐式指示的方式，可以避免通过专门的信令指示第一终端装置而带来的额外的信令开销。
结合第二方面，在第二方面的某些实现方式中，第一信号为第一DMRS，第二信号为第二DMRS，构成第一DMRS和第二DMRS的参考序列不同。
结合第二方面，在第二方面的某些实现方式中，第一终端装置接收第一指示信息之前，该方法还包括：第一终端装置向网络设备注册第一终端装置的侧行链路物理层的地址信息。
第三方面，本申请提供了一种用于非授权频段的DRX的方法，该方法包括：第二终端装置发送第一指示信息或第二指示信息，第一指示信息或第二指示信息用于指示第一终端装置采用非DRX模式或DRX模式，其中，非DRX模式为第一终端装置在非授权资源单元的第一监测时长内监测信号，DRX模式为第一终端装置在非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，在非授权资源单元内的休眠时长内停止监测。
在该实施例中，第二终端装置可以直接向第一终端装置发送第一指示信息，第一指示信息用于指示第一终端装置采用DRX模式或非DRX模式。
或者，第二终端装置向网络设备发送第二指示信息，由网络设备解调第二指示信息并获知第二终端装置所指示的DRX模式或非DRX模式之后，再由网络设备向第一终端装置发送第一指示信息，第一指示信息指示DRX模式或非DRX模式。
在该技术方案中，通过Uu链路的辅助，sidelink的发送端(对应第二终端装置)通过网络设备向接收端(对应第一终端装置)指示采用DRX模式或非DRX模式，可以避免由于发送端在sidelink上LBT不成功，用于指示第一终端装置的模式切换的指示信息不能及时发出去的缺点，能够降低模式切换的时延。
结合第三方面，在第三方面的某些实现方式中，第一指示信息携带于第二终端装置发送的SL-SSB或者PC5-RRC信令中。
结合第三方面，在第三方面的某些实现方式中，第二指示信息携带于所述第二终端终端装置发送的PUSCH的MAC CE或第一类型的PUCCH中，第一类型的PUCCH在时域上占满一个时隙。
结合第三方面，在第三方面的某些实现方式中，第二指示信息为第一信号或第二信号，所述第一信号用于指示第一终端装置采用DRX模式，所述第二信号用于指示第一终端装 置采用非DRX模式。
结合第三方面，在第三方面的某些实现方式中，第一信号为第一DMRS，第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
结合第三方面，在第三方面的某些实现方式中，所述第一信号为第二类型的第一PUCCH，所述第二信号为第二类型的第二PUCCH，构成所述第一PUCCH和所述第二PUCCH的参考序列不同，第二类型的PUCCH在时域上未占满一个时隙。
结合第三方面，在第三方面的某些实现方式中，所述第一信号为第一调度请求SR，所述第二信号为第二SR，构成所述第一SR和所述第二SR的参考序列不同。
结合第三方面，在第三方面的某些实现方式中，第二终端装置发送第一信号或第二信号之前，该方法还包括：第二终端装置向网络设备注册第二终端装置的侧行链路物理层的地址信息。
第四方面，本申请提供了一种用于非授权频段的DRX的方法，该方法包括：网络设备从第二终端装置接收第二指示信息，第二指示信息用于指示第一终端装置采用非DRX模式或DRX模式，其中，非DRX模式为第一终端装置在非授权资源单元内的第一监测时长内监测信号，DRX模式为第一终端装置在非授权资源单元内的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，在非授权资源单元内的休眠时长内停止监测；所述网络设备根据第二指示信息，向第一终端装置发送第一指示信息，第一指示信息用于指示非DRX模式或DRX模式。
网络设备通过Uu链路，从sidelink的发送端(对应第二终端装置)接收第二指示信息，第二指示信息用于指示sidelink的接收端(对应第一终端装置)采用DRX模式或非DRX模式。网络设备再借助Uu链路，向接收端发送第一指示信息，第一指示信息用于指示接收端采用DRX模式或非DRX模式。在本技术方案中，通过Uu链路的辅助，可以使工作于sidelink的非授权频段的接收端实现DRX，可以节省接收端的功耗。
可选地，在该实施例中，Uu link可以工作于授权频段或非授权频段。
在一种实现中，通过Uu链路的授权频段的辅助，sidelink的发送端(对应第二终端装置)通过网络设备向接收端(对应第一终端装置)指示采用DRX模式或非DRX模式，和第二方面或第三方面的方法相比，可以避免由于发送端(例如，网络设备)在sidelink上LBT不成功，用于指示第一终端装置的模式切换的第一指示信息不能及时发出去的缺点，能够降低模式切换的时延。
结合第四方面，在第四方面的某些实现方式中，第二指示信息携带于来自第二终端装置的PUSCH的MAC CE或第一类型的PUCCH中。
第二终端装置可以通过多种方式向网络设备指示DRX模式或非DRX模式，提高了指示的灵活性。
结合第四方面，在第四方面的某些实现方式中，第二指示信息为第一信号或第二信号，所述第一信号用于指示第一终端装置采用DRX模式，所述第二信号用于指示第一终端装置采用非DRX模式；所述网络设备根据第二指示信息，向第一终端装置发送第一指示信息，第一指示信息用于指示第一终端装置采用非DRX模式或DRX模式，包括：网络设备接收到来自第二终端装置的所述第一信号，网络设备向第一终端装置发送第一指示信息， 第一指示信息用于指示DRX模式；或者，网络设备接收到来自第二终端装置的所述第二信号，网络设备向第一终端装置发送第一指示信息，第一指示信息用于指示非DRX模式。
通过设置两种不同的信号，每一种信号本身用于指示DRX模式或非DRX模式中的一种。从而，网络设备根据来自第二终端装置的信号本身，可以确定第二终端装置指示第一终端装置采用DRX模式或非DRX模式，进而再通过第一指示信息通知第一终端装置。通过这种隐式指示的方式，可以避免第二终端装置通过专门的信令或指示信息指示网络设备而带来的额外的信令开销和资源开销。
结合第四方面，在第四方面的某些实现方式中，所述第一信号为第二类型的第一PUCCH，所述第二信号为第二类型的第二PUCCH，构成所述第一PUCCH和所述第二PUCCH的参考序列不同。
结合第四方面，在第四方面的某些实现方式中，所述第一信号为第一调度请求SR，所述第二信号为第二SR，构成所述第一SR和所述第二SR的参考序列不同。
结合第四方面，在第四方面的某些实现方式中，网络设备接收来自第二终端装置的第二指示信息之前，该方法还包括：网络设备接收来自于第一终端装置的第一地址信息以及来自于第二终端装置的第二地址信息，其中，第一地址信息为所述第一终端装置的侧行链路物理层的地址信息，第二地址信息为所述第二终端装置的侧行链路物理层的地址信息；网络设备根据第二指示信息，向第一终端装置发送第一指示信息，包括：网络设备向第一地址信息所对应的第一终端装置发送第一指示信息，其中，第一地址信息是网络设备根据接收第二指示信息的空口链路物理层的地址信息以及映射关系确定的，映射关系记录了第一地址信息、第二地址信息以及第一终端装置和第二终端装置各自的空口链路物理层的地址信息之间的对应关系。
结合第四方面，在第四方面的某些实现方式中，第一指示信息携带于所述网络设备发送的DCI或PDSCH中。
第五方面，本申请提供一种终端装置，所述终端装置具有实现第一方面、第二方面或其任意可能的实现方式中的方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元。
可选地，该终端装置为终端设备。
可选地，该终端装置为芯片。
第六方面，本申请提供一种终端装置，所述终端装置具有实现第三方面或其任意可能的实现方式中的方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元。
可选地，该终端装置为终端设备。
可选地，该终端装置为芯片。
第七方面，本申请提供一种通信装置，所述通信装置具有实现第四方面或其任意可能的实现方式中的方法的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元。
可选地，该通信装置为网络设备，例如接入网设备。
可选地，该通信装置为芯片。
第八方面，本申请提供一种终端设备，包括一个或多个处理器以及一个或多个存储器。 所述一个或多个存储器用于存储计算机程序，所述一个或多个处理器用于调用并运行所述一个或多个存储器中存储的计算机程序，使得终端设备执行第一方面、第二方面或其任意可能的实现方式中的方法。
第九方面，本申请提供一种终端设备，包括一个或多个处理器以及一个或多个存储器。所述一个或多个存储器用于存储计算机程序，所述一个或多个处理器用于调用并运行所述一个或多个存储器中存储的计算机程序，使得终端设备执行第三方面或其任意可能的实现方式中的方法。
第十方面，本申请提供一种网络设备，包括一个或多个处理器以及一个或多个存储器。所述一个或多个存储器用于存储计算机程序，所述一个或多个处理器用于调用并运行所述一个或多个存储器中存储的计算机程序，使得网络设备执行第四方面或其任意可能的实现方式中的方法。
第十一方面，本申请提供一种芯片，包括一个或多个处理器。所述一个或多个处理器用于读取并执行一个或多个存储器中存储的计算机程序，以执行第一方面、第二方面或其任意可能的实现方式中的方法。所述一个或多个存储器独立设置于所述芯片之外。
可选地，所述芯片还包括一个或多个存储器，所述一个或多个存储器与所述一个或多个处理器通过电路或电线与所述一个或多个存储器连接。
进一步可选地，所述芯片还包括通信接口。
第十二方面，本申请提供一种芯片，包括一个或多个处理器。所述一个或多个处理器用于读取并执行一个或多个存储器中存储的计算机程序，以执行第三方面或其任意可能的实现方式中的方法。所述一个或多个存储器独立设置于所述芯片之外。
可选地，所述芯片还包括一个或多个存储器，所述一个或多个存储器与所述一个或多个处理器通过电路或电线与所述一个或多个存储器连接。
进一步可选地，所述芯片还包括通信接口。
第十三方面，本申请提供一种芯片，包括一个或多个处理器。所述一个或多个处理器用于读取并执行一个或多个存储器中存储的计算机程序，以执行第四方面或其任意可能的实现方式中的方法。所述一个或多个存储器独立设置于所述芯片之外。
可选地，所述芯片还包括一个或多个存储器，所述一个或多个存储器与所述一个或多个处理器通过电路或电线与所述一个或多个存储器连接。
进一步可选地，所述芯片还包括通信接口。
上述方面中提及的芯片可以是片上***(system on chip,SoC)、基带芯片等。
第十四方面，本申请还提供一种计算机程序产品，包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面、第二方面或其任意一种可能的实现方式中的方法。
第十五方面，本申请还提供一种计算机程序产品，包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第三方面或其任意一种可能的实现方式中的方法。
第十六方面，本申请还提供一种计算机程序产品，包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第四方面或其任意一种可能的实现方式中的方法。
第十七方面，本申请还提供一种计算机存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得计算机执行第一方面、第二方面或其任意可能的实现方式中的方法。
第十八方面，本申请还提供一种计算机存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得计算机执行第三方面或其任意可能的实现方式中的方法。
第十九方面，本申请还提供一种计算机存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得计算机执行第四方面或其任意可能的实现方式中的方法。
第二十方面，本申请还提供一种通信装置，包括处理器和接口电路，所述接口电路用于接收计算机代码或指令，并传输至所述处理器，所述处理器用于运行所述计算机代码或指令，以执行第一方面、第二方面或其任意可能的实现方式中的方法。
第二十一方面，本申请还提供一种通信装置，包括处理器和接口电路，所述接口电路用于接收计算机代码或指令，并传输至所述处理器，所述处理器用于运行所述计算机代码或指令，以执行第三方面或其任意可能的实现方式中的方法。
第二十二方面，本申请还提供一种通信装置，包括处理器和接口电路，所述接口电路用于接收计算机代码或指令，并传输至所述处理器，所述处理器用于运行所述计算机代码或指令，以执行第四方面或其任意可能的实现方式中的方法。
第二十三方面，本申请提供一种无线通信***，包括第八方面的终端设备、第九方面的终端设备以及第十方面的网络设备中的一个或多个。
附图说明
图1为适用于本申请实施例的通信***的架构的示例。
图2的(a)和(b)为本申请提供的非授权资源的示意图。
图3为本申请提供的用于非授权频段的DRX的一个示例。
图4为UE在DRX模式和非DRX模式之间切换的一个示例。
图5为采用方式2在非授权频段实现DRX的示意性流程图。
图6是通过SL-SSB指示接收端采用DRX模式或非DRX模式的一个示例。
图7为本申请提供的用于非授权频段DRX的另一个示意性流程图。
图8为采用方式3在非授权频段实现DRX的一个示例。
图9为本申请提供的终端装置800的示意性结构图。
图10为本申请提供的终端装置900的示意性结构图。
图11为本申请提供的通信装置1000的示意性结构图。
图12为本申请提供的终端装置10的示意性结构图。
图13为本申请提供的终端装置20的示意性结构图。
图14为本申请提供的通信装置30的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请的技术方案主要应用在工作于非授权(unlicensed)频段的无线通信***，例如，全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、工作于非授权频段的第五代(the 5 th generation，5G)通信***或其它通信***，以及5G之后的工作于非授权频段的无线通信***等。
本申请中涉及的网络设备包括但不限于：演进型节点B(evolved node base，eNB)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(home evolved NodeB，或home node B，HNB)、基带单元(baseband Unit，BBU)、演进的(evolved LTE,eLTE)基站、NR基站(next generation node B,gNB)等。或者，网络设备或者还可以为集中式单元(centralized unit，CU)或分布式单元(distributed unit，DU)。
本申请中涉及的终端设备包括但不限于：用户设备(user equipment,UE)、移动台、接入终端、用户单元、用户站、移动站、远方站、远程终端、移动设备、终端、无线通信设备、用户代理、无线局域网(wireless local access network,WLAN)中的站点(station,ST)、蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备、连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的移动台以及未来演进的网络中的终端设备等中的任意一种。其中，车载设备还可以是车载通信模块或其它嵌入式通信模块。车载通信模块也可以称为车载终端设备或车载单元(on-board unit,OBU)。本申请实施例的终端设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元。车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。
此外，终端设备还可以为车联网(vehicle-to-everything,V2X)、智能网联汽车(intelligent connected vehicle,ICV)、自动驾驶或辅助驾驶等通信***等任何终端设备和终端设备(device to device,D2D)通信***中的终端设备。
参见图1，图1为适用于本申请实施例的通信***的架构的示例。如图1所示，该无线通信***可以包括至少一个网络设备和至少一个终端设备。网络设备如图1中所示的110和120，终端设备如图1中所示的111-119。
可选地，网络设备和终端设备之间可以通过Uu链路(Uu link)进行数据传输。例如，网络设备110和终端设备111,112,113以及114和115之间通过Uu链路进行传输。Uu链路可以工作于授权频段(licensed band)和/或非授权频段。
此外，终端设备之间还可以通过侧行链路(sidelink，SL)进行数据传输。例如，终端设备114与115，以及114与116之间通过侧行链路进行数据传输。sidelink也可以工作于授权频段或非授权频段(Un-licensed band)。
应理解，图1中所示仅是作为示例。该无线通信***中还可以包括其它的网络设备。
另外，本文中提及的终端设备之间的数据传输可以包括多种场景。
在一种可能的场景下，两个或多个位于网络设备110的网络覆盖下的终端设备之间进行数据传输，例如，114与115，或者114与116，以及115与116之间的数据传输。
在另一种可能的场景下，通过sidelink进行数据传输的一个终端设备位于一个网络设 备的网络覆盖之下，另一个终端设备可以位于该一个网络设备的网络覆盖之外。
例如，终端设备114位于网络设备110的网络覆盖之下，终端设备117位于网络设备120的网络的覆盖之下。例如，114和117之间的数据传输。
又例如，终端设备117位于网络设备120的网络覆盖下，终端设备118与网络设备120之间未建立连接。
在再一种可能的场景下，通过sidelink进行数据传输的两个终端设备可以均位于网络设备120的覆盖之外，或者说，通过sidelink进行数据传输的两个终端设备与网络设备120之间没有建立连接。例如，118和119之间的数据传输。
以上，终端设备与网络设备未建立连接的场景下，两个终端设备之间可以通过无线保真(wireless fidelity,wifi)或蓝牙等技术建立连接。
针对上述不同场景，本申请的技术方案均可以在sidelink上实现接收端设备的DRX，从而起到节省接收端设备功耗的目的。
需要说明的是，本申请的技术方案虽然是为了支持终端设备在sidelink上实现DRX，但是部分实施例涉及到通过Uu链路辅助终端设备在sidelink上实现DRX。Uu链路对应的授权资源的配置和使用可以采用现有机制。例如，网络设备为终端设备配置授权资源。在网络设备的调度下，终端设备使用授权资源向网络设备发送上行信号，或者从网络设备接收下行信号。
本领域技术人员可以理解，本文中的接收端设备或者发送端设备，是从数据传输方向的角度定义的。例如，接收端设备是指通过sidelink进行通信的两个终端设备中接收信号和/或数据的一方。
下面对本申请的技术方案进行详细说明。
网络设备为采用非授权频段进行数据传输的两个或多个终端设备配置非授权资源，终端设备在网络设备配置的非授权资源上发送和接收侧行信号。
终端设备为可以支持侧行链路进行通信的终端设备(为便于描述，称为“sidelink的终端设备”)和/或支持Uu链路与网络设备进行无线通信的终端设备。
可选地，非授权资源可以为周期的资源或非周期的资源。在一种实现中，当非授权资源为周期的资源时，可以为配置调度(configured grant,CG)的资源。
作为一个示例，sidelink的非授权资源单元具体可以为非周期的资源，或者CG的资源。Uu link的非授权资源可以为非周期资源。
可选地，在一种实现中，网络设备为终端设备配置周期性的非授权资源单元。不同的两个非授权资源单元的大小可以相同，也可以不同。
可选地，在另一种实现中，网络设备为终端设备配置的非授权资源也可以为时域上连续的非授权资源单元。当非授权资源单元在时域上连续的情况下，该非授权资源即为非周期的资源。
参见图2，图2的(a)和(b)为本申请提供的非授权资源的示意图。如图2的(a)所示，非授权资源可以为周期的资源。周期的非授权资源可以由周期的非授权资源单元组成，在时域上连续出现的两个非授权资源单元之间的时间间隔大于0。其中，非授权资源单元的周期可以为时域上连续出现的两个非授权资源单元的起始时刻之间的时间间隔，或者，也可以为其各自结束时刻之间的时间间隔。再如图2的(b)所示，非授权资源可以 为非周期的资源。非周期的资源在时域上是连续的，或者不间断的。可选地，非周期的资源也可以由非授权资源单元组成，与周期的资源不同的是，连续出现的两个非授权资源单元之间的时间间隔等于0。
其中，非授权资源单元可以进一步由若干个更小时间长度的时间单元组成，所述时间单元可以不限于为毫秒(ms)、符号(symbol)或时隙(slot)等。
例如，一个非授权资源单元可以包括8个slot、10个slot。或者，一个非授权资源单元可以包括8ms或10ms。或者，一个非授权资源单元可以包括(8×14)个符号，或者(10×14)个符号等。
因此，侧行通信的接收端采用DRX模式或非DRX模式，实际上描述了接收端监测非授权资源的模式。
例如，DRX模式是指侧行通信的接收端不需要持续或者不需要连续地监测非授权资源。非授权资源可以包括监控时长和休眠时长。接收端只在监控时长对非授权资源进行监测，而在休眠时长内不作监测，进入休眠。
非DRX模式是指侧行通信的接收端持续或者连续地监测非授权资源。
网络设备需要为终端设备配置用于DRX的相关参数，以使终端设备在非授权频段实现DRX，例如，sidelink或Uu link的非授权频段。
在一种实现方式中，终端设备的用于DRX的这些相关参数，可以由网络设备通过RRC信令发送给终端设备。由于RRC信令是针对UE的，或者说RRC信令属于UE的专用信令，而在sidelink的场景下，为了保证终端设备之间相同的DRX操作，网络设备需要为建立sidelink的终端设备配置相同的DRX的相关参数。
以下为了描述上的方便，将DRX的相关参数称为DRX参数。
可选地，DRX参数可以包括连续监测参数P和预设门限。监测参数P和预设门限用于sidelink的接收端确定监测非授权资源所采用的模式，例如，采用DRX模式或非DRX模式。
在一个示例中，应用于侧行链路上时，预设门限可以为侧行链路接收信号强度指示(sidelink received signal strength indicator,SL-RSSI)的检测门限Pd。而应用于Uu链路时，预设门限可以为Uu链路上的接收信号强度指示(received signal strength indicator,RSSI)的检测门限。
如上文的说明，本申请可以提供sidelink的多种场景下实现DRX的技术方案。下面一一进行说明。
下文将进行sidelink通信的接收端称为第一终端装置，将进行sidelink通信的发送端称为第二终端装置。
方式1
第一终端装置监测非授权资源，并在满足预设条件的情况下，进行非DRX模式和DRX模式之间的切换。
如上文所述，非授权资源可以由非授权资源单元组成，所述非授权资源单元在时域上可以是连续的，也可以是周期性的。第一终端装置可以以非授权资源单元为单位对非授权资源进行监测。
可以理解的是，通过sidelink进行通信的两个或多个终端设备可以在建立连接之后默 认采用非DRX模式监测非授权资源单元。在非DRX模式下监测非授权资源的过程中，如果满足切换到DRX模式的条件，则从非DRX模式切换到DRX模式。
在一个示例中，第一终端装置在非DRX模式下监测非授权资源单元，当第一终端装置在连续P个非授权资源单元未监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号的情况下，第一终端装置从非DRX模式切换为DRX模式。
这里，所述对应第一终端装置的侧行信号，可以为所述第一终端装置建立的侧行链路上接收到的目的地址为第一终端装置的侧行信号。例如，来自第二终端装置的目的地址为第一终端装置的接收地址的侧行信号。
所述对应第一终端装置的下行信号，可以为第一终端装置所接入的网络设备发送的目的地址为第一终端装置的接收地址的下行信号。
第一终端装置监测非授权资源单元，并在满足预设条件的情况下，进行DRX模式和非DRX模式的切换。
在一些实现中，第一终端装置在满足如下条件之一时，第一终端装置从非DRX模式切换到DRX模式：
预设条件1：第一终端装置在连续P个非授权资源单元上监测到对应第一终端装置的侧行信号和/或对应第一终端装置的下行信号，但是所述侧行信号和/或下行信号的目的接收地址和第一终端装置的接收地址不同。
需说明的是，侧行信号的目的接收地址和第一终端装置的接收地址不同，表明该侧行信号不是发送给第一终端装置的。同样地，下行信号的目的接收地址和第一终端装置的接收地址不同，表明该下行信号不是发送给第一终端装置的。
预设条件2：第一终端装置在连续P个非授权资源单元上未检测到对应第一终端装置的侧行信号或对应第一终端装置的下行信号，且连续P个非授权资源单元上的RSSI小于预设门限。
第一终端装置在非DRX模式下监测非授权资源单元的过程中，如果满足了上述预设条件1或预设条件2中的一个，则满足了从非DRX模式切换到DRX模式的条件，第一终端装置则在第P+1个非授权资源单元切换为DRX模式。
具体地，网络设备为sidelink的接收端(对应第一终端装置)和发送端(对应第二终端装置)配置非授权资源。第一终端装置在非DRX模式下监测非授权资源单元，当满足连续P个非授权资源单元上未监测到第一终端装置的侧行信号，以及未监测到第一终端装置的下行信号的情况下，第一终端装置从非DRX模式切换为DRX模式。
当然，如果将网络设备配置的非授权资源应用于实现Uu链路的DRX的情况下，第一终端装置在非DRX模式下监测下行信号。当满足连续P个非授权资源单元上未监测到第一终端装置的下行信号的情况下，第一终端装置从非DRX模式切换到DRX模式。
在非DRX模式下，第一终端装置监测非授权资源单元时，可以在非授权资源单元的部分或全部时长内进行监测信号。如果第一终端装置在非授权资源单元的部分时长监测信号，所述部分时长在本文中称为第一监测时长。
当第一监测时长等于非授权资源单元的全部时长时，也即第一终端装置在非授权资源单元的全部时长内监测信号。当第一监测时长等于非授权资源单元的部分时长时，第一终端装置在第一监测时长内监测信号，而在非授权资源单元内除了第一监测时长之外的其它 时长内可以执行休眠之外的其它操作。例如，第一终端装置可以在第一监测时长之外的其它时长内发送上行信号或侧行信号。
在DRX模式下，非授权资源单元包括监测时长和休眠时长。其中，DRX模式下非授权资源单元的监测时长在本文中称为第二监测时长。
需要说明的是，终端装置在休眠时长内既不监测(或者说，接收)下行信号和侧行信号，也不发送上行信号或侧行信号。
此外，需要注意的是，在非DRX模式下，在非授权资源单元除了第一监测时长之外的其它时长内，终端装置虽然不进行信号监测，但是该终端装置可以发送上行信号或侧行信号，这和DRX模式的休眠时长不同。
可选地，本文中不限定第一监测时长和第二监测时长的大小关系。例如，第一监测时长可以等于、大于或者小于第二监测时长。
可选地，第二监测时长可以为非授权资源单元的部分时长，即第二检测时长的长度小于非授权资源单元的时长。
在一些实施例中，非授权资源单元在时域上可以包括多个时间单元，所述时间单元可以为毫秒、符号(symbol)或时隙(slot)等。第二监测时间可以包括所述多个时间单元内的部分时间单元。该多个时间单元内除第二检测时间以外剩余的时间单元的总时长为休眠时长。
上文已经介绍过，非授权资源单元可以包括若干个时间单元，所述时间单元不限于为毫秒、符号或时隙等。
这里，第二监测时长作为非授权资源单元的部分时长，第二监测时长也可以包括所述若干个时间单元中的部分时间单元。
例如，第二监测时长为非授权资源单元的前T毫秒、前T个symbol或前T个slot等，T≥1，且T小于非授权资源单元所包含的时间单元的个数。
下面结合图3给出一个终端设备从非DRX模式下监测非授权资源单元，并在满足预设条件的情况下，从非DRX模式切换到DRX模式的示例。
图3的示例中，非授权资源可用于sidelink以及Uu链路的通信。因此，第一终端装置对非授权资源单元的监测包括对侧行信号和下行信号的监测。同时，假设sidelink和Uu link上的RSSI的门限分别为门限1和门限2。
参见图3，图3为本申请提供的用于非授权频段的DRX的一个示例。如图3所示，假定第一终端装置处于非DRX模式，以及，网络设备为第一终端装置和第二终端装置配置了周期性的非授权资源单元。非授权资源单元表示为CG。根据上文对侧行链路上非DRX模式的定义，在非DRX模式下，第一终端装置在每个非授权资源单元的第一监测时长内监测信号。
在图3的示例中，第一监测时长等于非授权资源单元的全部时长。图3中，将第一终端装置记作UE1。
根据图3的示例，UE1在CG_1的第一监测时长内监测到对应UE1的侧行信号和/或对应UE1的下行信号，则UE1在CG_2继续保持非DRX模式。UE1继续在CG_2的第一时长内监测是否有发送给UE1的侧行信号和/或下行信号。假设UE1在CG_2未监测到发送给UE1的侧行信号和下行信号，则UE1在CG_3继续保持非DRX模式。如果从CG_2 到CG_N共P个CG，UE1监测到侧行信号或下行信号，但所述侧行信号或下行信号的目的接收地址不是UE1的地址。或者，UE1在这P个CG未监测到侧行信号或下行信号，且侧行链路SL-RSSI小于预设的SL-RSSI的门限1，且Uu链路的RSSI小于预设的Uu链路的门限2。UE1则在CG_N+1切换为DRX模式。
应理解，如果非授权资源仅应用于sidelink的通信，第一终端装置只需要在连续P个非授权资源单元上未监测到侧行信号，且SL-RSSI小于门限1，第一终端装置则从非DRX模式切换为DRX模式。
又例如，如果非授权资源仅应用于sidelink的通信，第一终端装置只需要在连续P个非授权资源单元上未监测到下行信号，且Uu链路上的RSSI小于门限2，第一终端装置则从非DRX模式切换为DRX模式。
在DRX模式下，UE1只在CG_N+1的第二监测时长监测信号。如果在第二监测时长内未监测到发送给UE1的侧行信号或下行信号，UE1在CG_N+1的休眠时长内停止监测信号，进行休眠。在CG_N+2，UE1继续保持DRX模式，即在CG_N+2的第二监测时长内监测信号，如果在CG_N+2的第二监测时长内未监测到发送给UE1的侧行信号和下行信号，则在CG_N+2的休眠时长内停止信号监测，进入休眠。以此类推，不再赘述。
在图3中，从CG_N+1到CG_M，UE1始终保持DRX模式监测信号。
UE1采用DRX模式监测非授权资源单元，直到满足从DRX模式切换到非DRX模式的条件，UE1又从DRX模式切换到非DRX模式，如图4所示。
参见图4，图4为UE在DRX模式和非DRX模式之间切换的一个示例。如图4所示，在DRX模式下，UE1在CG的第二监测时长内监测信号，如果在第二监测时长内未监测到对应UE1的侧行信号或下行信号，UE1在CG的休眠时长内停止监测。假设UE1从CG_M+1开始，在CG_M+1的第二监测时长内未监测到发送给UE1的侧行信号或下行信号，UE在CG_M+1的休眠时长内停止信号监测。在CG_M+2，UE1继续保持采用DRX模式，以此类推。假设UE1在CG_L的第二监测时长内监测到对应UE1的侧行信号和/或下行信号，UE1在CG_L的第二监测时长结束之后，不再进入休眠，而是继续监测CG_L直至监测时长等于第一监测时长。此时，UE从DRX模式切换到非DRX模式。
可以理解的是，如果网络设备配置的非DRX模式下的非授权资源单元的第一监测时长和DRX模式下的非授权资源单元的第二监测时长不同，则UE1从DRX模式切换到非DRX模式时，需要从第二监测时长切换为第一监测时长。
在另一种实现中，第一监测时长可以等于第二监测时长。这种实现中，UE1在CG_L的第二监测时长内监测到对应UE1的侧行信号和/或下行信号的情况下，第二监测时长结束之后，UE1则从DRX模式切换为非DRX模式。
可见，在DRX模式下，UE1只要在CG的第二监测时长内监测到对应UE1的侧行信号或下行信号，UE1则切换为非DRX模式。
另外，如图4所示，在非DRX模式下，第一监测时长为非授权资源单元的一部分。UE1在第一监测时长内监测信号，在第一监测时长内若为监测到侧行信号和/或下行信号，则在非授权资源单元的剩余时长可以执行休眠之外的其它操作，例如，发送上行信号或侧行信号。
需要说明的是，图3、图4以及后文的图8中，以非授权资源为CG的资源作为示例。 因此，图示中将非授权资源单元标记为CG。根据上文对非授权资源的说明，非授权资源还可以配置为CG的资源之外的其它资源或形式。因此，图3，图4以及图8不应对本申请中的非授权资源构成任何限定。
在方式1中，接收端设备在网络设备配置的非授权资源单元上监测是否有发送给接收端设备的侧行信号或下行信号，并根据监测的结果以及预设条件，可以在DRX模式和非DRX模式之间进行切换。由于接收端设备可以采用DRX模式，不需要持续、不间断地监测非授权资源，从而节省接收端设备的功耗。
另外，方式1的方案中，由于接收端设备是通过监测非授权资源来确定采用DRX模式或非DRX模式，因此，并不关注接收端设备和发送端设备是否处于网络覆盖下。换句话说，方式1对于接收端设备和发送端设备均处于网络覆盖下，或者两者之一处于网络覆盖下，以及两者均未处于网络覆盖下的场景都是适用的。
现有蜂窝网技术除了支持网络设备和终端设备之间的数据传输，也支持sidelink的数据传输。例如，LTE和NR都支持SL。但是，SL上并不支持终端设备低功耗的操作。即是说，两个终端设备之间建立sidelink之后，终端设备需要一直对信道进行监测，直到建立的连接断开。为了降低终端设备的功耗，于是人们想到将Uu link的DRX模式应用于sidelink。
Uu link的低功耗模式，可以让终端设备在某些时候进入睡眠状态，不去监听物理下行控制信道(physical downlink control channel,PDCCH)。在需要监听PDCCH的时候，从睡眠状态唤醒，去监听PDCCH。由于终端设备不需要持续地监听信道，从而达到节省终端设备的功耗的目的。
现有的DRX模式都是基于定时器实现。具体地，网络设备为终端设备配置了DRX参数，则终端设备需要在配置的on-duration上检测PDCCH。若在此期间检测到了PDCCH，则终端设备需要启动定时器，启动定时器之后，继续检测PDCCH。若没有再次检测到PDCCH，则会进入睡眠模式。
但是，直接将网络设备和终端设备之间的DRX模式应用到SL中并不可行。由于sidelink的通信遵守LBT机制，而LBT的不确定性，如果接收端根据定时器来判断发送端的信号发送情况，很多时候会造成误判，导致数据丢失等情况出现，严重影响sidelink通信的质量。可见，直接将Uu链路上的DRX机制应用到侧行链路是不可行的。
在方式1中，结合sidelink本申请的特点，考虑到通信设备(例如，终端设备或网络设备)工作于非授权频段场景下，接收端设备未监测到侧行信号和下行信号可能并不代表发送端设备没有信号需要发送，因此，接收端在网络设备配置的非授权资源上监测信号时，除了确定是否监测到侧行信号或下行信号，接收端设备还需要在未监测到侧行信号或下行信号的情况下，对非授权资源单元上的信号接收能量进行判决，可以避免发送端设备因先听后说(listen before talk,LBT)不成功导致无法发出信号，使得接收端设备误判发送端设备没有信号需要发送，而错误地切换到DRX模式，由此可能带来信号或数据的丢失的情况，以提高接收端对发送端的信号发送情况的判断的准确率。
上述方式1中，DRX模式和非DRX模式的切换，是接收端设备通过在非授权资源上监测发送端设备以及网络设备发送信号的情况，来确定采用DRX模式或非DRX模式。下面介绍一些其它实现方式，如下文的方式2和方式3。
方式2
第二终端装置指示第一终端装置进行模式切换。
参见图5，图5为采用方式2在非授权频段实现DRX的示意性流程图。
510、第二终端装置向第一终端装置发送第一指示信息，第一指示信息用于指示第一终端装置采用DRX模式或非DRX模式。
其中，关于DRX模式和非DRX模式的说明参见方式1中的说明，不再赘述。
520、第一终端装置根据第一指示信息，采用DRX模式或非DRX模式。
需要说明的是，第一终端接收来自第二终端装置的第一指示信息，包括多种可能的场景。
在一种可能的场景下，第一终端装置和第二终端装置进行侧行通信，例如，第一终端装置与第二终端装置均未与网络设备建立连接，或者只有第二终端装置(也即，发送终端设备)与网络设备建立连接，或者，两者分别与不同的网络设备建立连接，或者两者与同一个网络设备建立连接但是需要两个终端装置彼此之间建立同步。在这些场景下，第一终端装置和第二终端装置进行侧行通信之前，第二终端装置向第一终端装置发送侧行链路同步信号块(sidelink-synchronisation signal block,SL-SSB)，SL-SSB中携带第一指示信息。其中，第一指示信息用于指示第一终端装置采用非DRX模式或DRX模式。
在NR中，SL-SSB包括主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)和物理广播信道(physical broadcast channel,PBCH)。可选地，第一指示信息可以携带在SL-SSB的PBCH中。例如，PBCH中携带1个比特，0表示非DRX模式，1表示DRX模式；或者1表示非DRX模式，0表示DRX模式。
第一终端装置从第二终端装置接收SL-SSB，并从PBCH中获取第一指示信息。根据第一指示信息，第一终端装置采用非DRX模式或者DRX模式。
可选地，如果第一指示信息用于指示非DRX模式，第一终端装置在和第二终端装置同步之后，采用非DRX模式监测非授权资源单元。如果第一指示信息指示DRX模式，第一终端装置在和第二终端装置同步之后，采用DRX模式监测非授权资源单元。
可选地，所述SL-SSB可以是第二终端装置在与第一终端装置同步过程中发送的，也可以是在同步并建立连接之后发送的，不作限定。
可选地，在另一个场景下，第一终端装置和第二终端装置建立sidelink之后，第二终端装置再通过第一指示信息指示第一终端装置采用DRX模式或非DRX模式。
可选地，在一个实施例中，第二终端装置和第一终端装置建立sidelink之后，第二终端装置通过PC5接口-无线资源控制(PC5-radio resource control,PC5-RRC)信令向第一终端装置发送第一指示信息。也就是说，第一指示信息携带于PC5-RRC信令中发送。
应理解，PC5接口是终端设备之间的一种接口。
例如，第二终端装置向第一终端装置发送PC5-RRC信令，PC5-RRC信令中携带所述第一指示信息，第一指示信息用于指示第一终端装置采用非DRX模式或DRX模式。
第一终端装置在侧行链路上接收来自第二终端装置的第一指示信息，并根据第一指示信息确定后续采用DRX模式或非DRX模式。
下面结合图6，以SL-SSB携带第一指示信息为例，说明第二终端装置向第一终端装 置指示DRX模式或非DRX模式。
参见图6，图6是通过SL-SSB指示接收端采用DRX模式或非DRX模式的一个示例。如图6所示，第二终端装置在SL-SSB的发送窗口内发送SL-SSB。第一终端装置在非DRX模式下，在SL-SSB的窗口内接收SL-SSB。第一终端装置解调SL-SSB，如果SL-RRB没有携带第一指示信息，或者SL-SSB的PBCH携带第一指示信息，且第一指示信息指示非DRX模式，第一终端装置从网络设备配置的非授权参数中选择和非DRX模式对应的一组非授权参数。在图6中，SL-SSB的发送窗口表示为发现参考信号(discovery reference signal,DRS)窗口。SL-SSB的周期表示为发现参考信号测量时间配置(discovery reference signal measurement timing configuration,DMTC)周期。
假设第一终端装置在第N个CG(如图6中所示的CG_A)之后的第一个DRS窗口内接收到SL-SSB，SL-SSB的PBCH中携带第一指示信息，第一指示信息用于指示DRX模式。第一终端装置在第(N+1)个非授权资源单元从非DRX模式切换为DRX模式。
在图6中，非DRX模式下的非授权资源单元表示为CG_A，DRX模式下的非授权资源单元表示为CG_D。
可选地，CG_A和CG_D的周期和大小可以相同，也可以不同。例如，CG_A的大小和CG_D相同，但是周期不同。或者，CG_A的大小和CG_D的周期相同，但是大小不同。本文不作限定。
在上面的实施例中，第二终端装置通过第一指示信息向第一终端装置显式指示非DRX模式或DRX模式。
在另一个实施例中，第一指示信息可以隐式的。第一指示信息可以为第一信号或第二信号，第一信号或第二信号本身用于指示DRX模式或非DRX模式。
在一个示例中，第二终端装置通过用于解调PBCH的参考信号指示第一终端装置监测非授权资源的模式为非DRX模式或DRX模式。
网络设备为第二终端装置配置两种不同的参考信号，下文分别称为第一参考信号和第二参考信号。第二终端装置发送第一参考信号，表示第二终端装置指示第一终端装置采用DRX模式。第二终端装置发送第二参考信号，表示第二终端装置指示第一终端装置采用非DRX模式。
可选地，所述第一参考信号和第二参考信号具体可以为解调参考信号(demodulation reference signal,DMRS)。例如，网络设备为第一终端装置解调SL-SSB中PBCH的两种DMRS，这两种DMRS的参考序列不同。
第一终端装置通过盲检确定DMRS的参考序列，从而确定采用非DRX模式或DRX模式。例如，第一终端装置检测到第一参考序列的DMRS，表示第二终端装置指示DRX模式。第一终端装置检测到第二参考序列的DMRS，表示第二终端装置指示非DRX模式。
可选地，在另一些实施例中，第二终端装置也可以通过DMRS之外的其它参考信号或信号隐式指示DRX模式或非DRX模式。
例如，网络设备配置不同参考序列的两种信道状态信息参考信号(channel state information reference signal,CSI-RS)。一种CSRS用于指示DRX模式，另一种CSI-RS用于指示非DRX模式。第一终端装置根据检测到的CSRS的参考序列，可以确定采用DRX模式或非DRX模式。
在方式2中，sidelink的发送端通过主动指示接收端的模式切换，可以避免如方式1中由接收端监测发送端的信号确定模式切换而存在的切换延时的问题。因此，方式2可以有效降低模式切换的延时。
以上方式1和方式2均是通过sidelink链路本身的操作进行非DRX模式和DRX模式的切换。下面再提供一种通过Uu链路辅助sidelink的接收端(也即，第一终端装置)进行模式切换的方法，如下文的方式3。
方式3
第二终端装置通过和网络设备之间的Uu链路，向网络设备指示DRX模式或非DRX模式。网络设备在获知第二终端装置指示的模式之后，通过网络设备和第一终端装置之间的Uu链路，将第二终端装置指示的模式通知第一终端装置。
参见图7，图7为本申请提供的实现DRX的另一个示意性流程图。
610、第二终端装置向网络设备发送第二指示信息。其中，第二指示信息用于指示第一终端装置采用DRX模式或非DRX模式。
网络设备接收来自第二终端装置的第二指示信息，确定第二终端装置指示的模式。
620、网络设备向第一终端装置发送第一指示信息，第一指示信息用于指示DRX模式或非DRX模式。
第一终端装置接收来自网络设备的第一指示信息。
630、第一终端装置根据第一指示信息，采用DRX模式或非DRX模式。
从图7所示的流程可以发现，方式3适用于第一终端装置和第二终端装置均处于网络覆盖下的场景。
在图7的流程中，第一终端装置和第二终端装置分别与网络设备之间建立Uu链路，同时，第一终端装置和第二终端装置需要在网络设备注册各自的侧行链路物理层的地址信息，也即sidelink layer_1的地址信息。
图7所述流程中的网络设备，是指第一终端装置和第二终端装置的接入网设备。
终端装置向网络设备注册侧行链路物理层的地址信息，是指终端装置将自己的sidelink物理层的地址信息提供给接入网设备。
为了描述上的方便，第一终端装置的侧行链路物理层的地址信息称为第一地址信息。，第二终端装置的侧行链路物理层的地址信息称为第二地址信息。
网络设备从第二终端装置接收第二指示信息之前，方法600还包括步骤640和步骤650。
640、第一终端装置向网络设备发送第一终端装置的第一地址信息，第二终端装置向网络设备发送第二终端装置的第二地址信息。
网络设备分别接收来自第一终端装置的第一地址信息，以及来自第二终端装置的第二地址信息。
650、网络设备建立第一终端装置和第二终端装置各自的Uu link物理层的地址信息、第一地址信息以及第二地址信息的映射关系。
接入网设备接收到第一终端装置的第一地址信息以及第二终端装置的第二地址信息，再结合第一终端装置和第二终端装置各自的Uu link物理层的地址信息，建立两者之间的对应关系。
需要说明的是，第一终端装置和第二终端装置在接入网络时，接入网设备可以获得第一终端装置的Uu link物理层的地址信息，以及第二终端装置的Uu link物理层的地址信息。但是，第一终端装置和第二终端装置的sidelink物理层的地址信息，接入网设备是不知道的。
接入网设备在第二终端装置指示向第一终端装置指示DRX模式或非DRX模式的过程中，接入网设备从第二终端装置接收到第二指示信息，接入网设备建立Uu link物理层地址信息和sidelink物理层地址信息之间的映射关系之后，接入网设备根据接收第二指示信息的Uu link物理层地址信息，可以确定第二终端装置的sidelink物理层地址信息。进而，根据映射关系，接入网设备可以确定和第二终端装置建立sidelink的终端装置(也即，第一终端装置)的sidelink物理层地址信息，并最终确定出第一终端装置的Uu link物理层地址信息。最后，接入网设备发送第一指示信息，第一指示信息的接收地址即为第一终端装置的Uu link物理层地址信息。
建立映射关系之后，当第二终端装置需要指示第一终端装置进行模式切换时，第二终端装置可以向网络设备通知第一终端装置的模式。网络设备接收来自第二终端装置的通知消息，根据映射关系，可以确定第二终端装置的第二地址信息对应的第一地址信息，并向第一地址信息对应的第一终端装置指示该模式。从而，第一终端装置也可以实现非DRX模式和DRX模式的切换。
和上文介绍的第一指示信息的具体实现类似，第二指示信息可以是显式的，也可以是隐式的，下面分别说明。
(1)第二指示信息显式指示DRX模式或非DRX模式。
在一个实施例中，第二终端装置向网络设备发送第一类型的PUCCH，第一类型的PUCCH中携带所述第二指示信息。第二指示信息用于指示DRX模式或非DRX模式。
在另一个实施例中，第二终端装置向网络设备发送PUSCH，PUSCH中携带第二指示信息。
可选地，第二指示信息可以携带在PUSCH的某一个MAC CE中。所述“某一个MAC CE”可以由网络设备配置，也可以由标准协议规定，或者由网络设备和终端设备协商或约定。
在这个实施例中，由于PUSCH是由网络设备调度的，因此，网络设备根据接收到PUSCH的资源位置，可以确定发送PUSCH的终端设备的地址，因此，网络设备可以确定第二终端装置的Uu link RNTI地址。再根据第二终端装置注册的sidelink的地址信息以及映射关系，网络设备可以确定sidelink的接收端(也即，第一终端装置)的Uu link RNTI地址。进一步地，网络设备将第二终端装置指示的非DRX模式或DRX模式通知第一终端装置。
(2)第二指示信息隐式指示DRX模式或非DRX模式。
在一个实施例中，第二终端装置向网络设备发送第二指示信息，第二指示信息为第一调度请求(scheduled request,SR)或第二SR，第一SR用于指示DRX模式，第二SR用于指示非DRX模式。其中，构成第一SR和第二SR的参考序列不同。
在另一个实施例中，第二终端装置向网络设备发送第二指示信息，第二指示信息为第二类型的第一PUCCH或第二类型的第二PUCCH，第一PUCCH用于指示DRX模式，第 二PUCCH用于指示非DRX模式。其中，构成第一PUCCH和第二PUCCH的参考序列不同。
本文中，第一类型的PUCCH可以是在时域上占满一个slot的PUCCH，第二类型的PUCCH可以是在时域上未占满一个slot的PUCCH。因此，第一类型的PUCCH也可以称为长PUCCH，第二类型的PUCCH也可以称为短PUCCH。
在以上这些隐式指示的方式中，网络设备接收到上述信号中的一种，获知对应的sidelink接收端的RNTI地址以及需要接收端需要切换的模式。进一步地，可以通过如下方法通知sidelink的接收端。
在一个实施例中，网络设备向第一终端装置发送DCI，DCI采用第一终端装置的RNTI地址加扰，DCI携带第一指示信息，第一指示信息用于指示非DRX模式或DRX模式。
第一终端装置接收DCI，并采用自己的RNTI地址解扰DCI，获取DCI中的第一指示信息，从而确定第二终端装置指示的非DRX模式或DRX模式。
在另一个实施例中，网络设备向第一终端装置发送DCI，DCI采用第一终端装置的RNTI地址加扰。DCI用于调度PDSCH，PDSCH携带第一指示信息。
第一终端装置接收DCI，并用自己的RNTI地址解扰DCI。进一步地，第一终端装置根据DCI接收PDSCH，并从PDSCH获取第一指示信息，从而可以确定第二终端装置指示的DRX模式或非DRX模式。
参见图8，图8为采用方式3在非授权频段实现DRX的一个示例。如图8所示，第二终端装置先通过Uu link向网络设备发送第二指示信息，第二指示信息可以携带于第一类型的PUSCH，或者，第二指示信息具体可以为第二类型的第一PUSCH或第二PUSCH，以及第一SR或SR等。第二指示信息用于指示DRX模式或非DRX模式。网络设备在Uu link上接收来自第二终端装置的第二指示信息，获知第二终端装置指示的DRX模式或非DRX模式。
进一步地，网络设备再通过Uu link向第一终端装置发送第一指示信息。第一指示信息用于指示第一终端装置采用DRX模式或非DRX模式。第一指示信息可以携带于DCI中，或者携带于DCI调度的PDSCH中等。
第一终端装置通过Uu link接收来自网络设备的第一指示信息，如果第一指示信息指示DRX模式，则从非DRX模式切换为DRX模式。
可选地，在另一些示例中，网络设备还可以通过SSB、RRC信令携带第一指示信息，从而向第一终端装置指示DRX模式或非DRX模式。
假设第一终端装置在接收到第一指示信息之前采用非DRX模式，接收到第一指示信息之后，第一终端装置在CG_1切换为DRX模式。
可选地，图8中所示的Uu link可以工作于非授权频段和/或非授权频段。sidelink可以工作于非授权频段。例如，第一指示信息和第二指示信息均可以通过Uu link的授权频段发送，也可以通过非授权频段发送，或者其中一个通过授权频段发送而另一个通过非授权频段发送，不作限定。
可以理解的是，方式3中通过Uu link的辅助向第一终端装置指示采用DRX模式或非DRX模式。而网络设备通过DCI或PDSCH向第一终端装置进行指示，会存在一定的时延，图8中所示的控制时延(command delay)。
在方式3中，通过建立在licensed band的Uu link辅助，sidelink的发送端通过网络设备转发第一指示信息，可以避免由于发送端在sidelink上LBT不成功，用于指示第一终端装置的模式切换的指示信息不能及时发出去的缺点，能够降低模式切换的时延。
以上方式2和方式3中，第一终端装置根据接收到的第一指示信息，确定后续采用DRX模式或非DRX模式。
在不同的实施方式中，网络设备可以分别配置DRX模式和非DRX模式下的非授权资源。例如，网络设备配置两组非授权参数，所述两组非授权参数中的一组非授权参数对应DRX模式，另一组非授权参数对应非DRX模式。
如果第一指示信息指示第一终端装置采用DRX模式，第一终端装置则选择和DRX模式对应的一组非授权参数。如果第一指示信息指示第一终端装置采用非DRX模式，第一终端装置则选择和非DRX模式对应的另一组非授权参数。
其中，非授权参数主要包括非授权资源单元的周期以及非授权资源单元内的监测时长。
例如，非DRX模式对应的非授权参数包括非授权资源单元的时长、周期，以及非授权资源单元的第一监测时长。DRX模式下对应的非授权资源包括非授权资源单元的时长、周期，以及非授权资源单元的第二监测时长。
可以理解的是，DRX模式下，网络设备配置了非授权资源单元的时长和第二监测时长，休眠时长即可得到。但是，也不限定网络设备可以配置非授权资源单元的时长、第二监测时长以及休眠时长。
另外，在上述方式1-方式3的任意一种方式中，网络设备配置DRX模式和非DRX模式对应的非授权参数，并下发给建立sidelink的终端设备。sidelink的接收端在切换到一种模式之后，则选择使用和当前采用的模式(即，DRX模式或非DRX模式)对应的一组非授权参数。
可替换地，上述两组非授权参数也即DRX模式和非DRX模式下的非授权资源。换句话说，一组非授权参数即是DRX模式下的非授权资源，另一组非授权参数即是非DRX模式下的非授权资源。
以上对本申请提供的实现DRX的方法进行了详细说明。下面说明本申请提供的通信装置。
参见图9，图9为本申请提供的终端装置800的示意性结构图。如图9所示，终端装置800包括收发单元810和处理单元820。
在一种实现中，终端装置800对应上述方法实施例的方式1中的第一终端装置。这种情况下，终端装置800的各单元的功能如下所述。
收发单元810，用于在非DRX模式下监测P个非授权资源单元，所述非DRX模式为所述收发单元810在所述P个非授权资源单元内的第一监测时长内监测信号；
处理单元820，用于在所述收发单元810在连续P个所述非授权资源单元未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的情况下，控制所述收发单元810从所述非DRX模式切换到DRX模式，其中，在所述DRX模式下，所述非授权资源单元包括第二监测时长和休眠时长，所述DRX模式为所述终端装置在所述第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述终端装置的侧行信号和/或 对应所述终端装置的下行信号的情况下，在所述休眠时长内停止监测，P≥1且P为整数。
在一个实施例中，所述收发单元810未监测到对应所述终端装置的侧行信号和/或下行信号的情况为以下一种或多种：
所述收发单元810在连续P个所述非授权资源单元上监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号，所述侧行信号和/或所述下行信号的目的地址不同于所述终端装置的地址；或者，
所述收发单元810在连续P个所述非授权资源单元上未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号，且连续P个所述非授权资源单元上的接收信号强度低于预设门限。
在一个实施例中，所述处理单元820还用于：
控制所述收发单元810在所述DRX模式下监测授权资源单元，并在所述收发单元810在所述第二监测时长内监测到对应所述终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，控制所述收发单元810从所述DRX模式切换到所述非DRX模式。
在一个实施例中，所述非授权资源单元在时域上包括多个时间单元，所述第二监测时长包括所述多个时间单元中的部分时间单元，所述时间单元为以下任意一项：毫秒、符号或时隙。
在另一种实现中，终端装置800对应上述方法实施例的方式2或方式3中的第一终端装置。这种情况下，终端装置800的各单元的功能如下所述。
收发单元810，用于接收第一指示信息，所述第一指示信息用于指示所述终端装置采用非DRX模式或DRX模式，
其中，所述非DRX模式为所述终端装置在非授权组员单元内的第一监测时长内监测信号，所述DRX模式为所述终端装置在所述非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的情况下，在所述非授权资源单元的休眠时长内停止监测；
以及，处理单元820用于根据所述第一指示信息，控制所述收发单元810采用所述DRX模式或非DRX模式。
在一个实施例中，所述第一指示信息携带于来自网络设备的SSB、RRC、PDSCH的MAC CE或DCI中。
在一个实施例中，所述第一指示信息携带于来自第二终端装置的SL-SSB或者PC5-RRC信令中。
在一个实施例中，所述第一指示信息为第一信号或第二信号，所述第一信号用于指示所述终端装置采用所述DRX模式，所述第二信号用于指示所述终端装置采用所述非DRX模式。
在一个实施例中，所述第一信号为第一DMRS，所述第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
在一个实施例中，所述处理单元820还用于向网络设备注册所述终端设备的侧行链路物理层的地址信息。
其中，所述侧行链路物理层的地址信息即为sidelink layer_1的地址信息。
可选地，终端装置800可以为侧行通信中的接收端设备，例如，终端装置800可以完 全对应方法实施例中的第一终端装置。收发单元810可以为收发器。收发器可以由接收器或者发射器代替。例如，收发器在执行发送的动作时，可以由发送器替代。收发器执行接收的动作时，可以由接收器代替。处理单元820可以为处理装置。
可选地，终端装置800可以为安装在第一终端设备中的电路***，所述电路***可以为芯片、集成电路或片上***(system on chip,SoC)等。此时，收发单元810可以为通信接口。例如，收发单元810可以为输入/输出接口或接口电路。输入输出电路可以包括输入接口和输出接口。接口电路可以包括输入接口电路和输出接口电路。处理单元820可以为处理电路。
其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。例如，处理装置可以包括一个或多个存储器以及一个或多个处理器。其中，所述一个或多个存储器用于存储计算机程序，所述一个或多个处理器读取并执行所述一个或多个存储器中存储的计算机程序，使得终端装置800执行各方法实施例中由第一终端装置执行的操作和/或处理。
可选地，处理装置也可以仅包括所述一个或多个处理器，所述一个或多个储存器位于处理装置之外。所述一个或多个处理器通过电路/电线与所述一个或多个存储器连接，以读取并执行存储器中存储的计算机程序。
可选地，在一个实施例中，收发单元810可以为终端设备中的射频装置，处理单元820可以为基带装置。
参见图10，图10为本申请提供的终端装置900的示意性结构图。如图10所示，终端装置900包括收发单元910和处理单元920。
收发单元910，用于发送第一指示信息或第二指示信息，所述第一指示信息或第二指示信息用于指示第一终端装置采用非DRX模式或非DRX模式；
其中，所述非DRX模式为所述第一终端装置在非授权资源单元的第一监测时长内监测信号，所述DRX模式为所述第一终端装置在非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，在所述非授权资源单元内的休眠时长内停止监测。
在一个实施例中，所述第一指示信息携带于所述收发单元910发送的SL-SSB或者PC5-RRC信令中。
在一个实施例中，所述第二指示信息携带于所述收发单元910发送的PUSCH的MAC CE或第一类型的PUCCH中。
在一个实施例中，所述第二指示信息为第一信号或第二信号，所述第一信号用于指示所述第一终端装置采用所述DRX模式，所述第二信号用于指示所述第一终端装置采用所述非DRX模式。
在一个实施例中，所述第一信号为第一DMRS，所述第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
在一个实施例中，所述第一信号为第二类型的第一PUCCH，所述第二信号为第二类型的第二PUCCH，构成所述第一PUCCH和第二PUCCH的参考序列不同。
在一个实施例中，所述第一信号为第一SR，所述第二信号为第二SR，构成所述第一SR和第二SR的参考序列不同。
在一个实施例中，所述处理单元920用于向网络设备注册所述终端装置的侧行链路物理层的地址信息。
其中，所述侧行链路物理层的地址信息即为sidelink layer_1的地址信息。
可选地，终端装置900可以为侧行通信中的发送端设备，例如，终端装置900可以完全对应方法实施例中的第二终端装置。收发单元910可以为收发器。收发器可以由接收器或者发射器代替。例如，收发器在执行发送的动作时，可以由发送器替代。收发器执行接收的动作时，可以由接收器代替。处理单元920可以为处理装置。
可选地，终端装置900可以为安装在第二终端设备中的电路***，所述电路***可以为芯片、集成电路或片上***(system on chip,SoC)等。此时，收发单元910可以为通信接口。例如，收发单元910可以为输入/输出接口或接口电路。输入输出电路可以包括输入接口和输出接口。接口电路可以包括输入接口电路和输出接口电路。处理单元920可以为处理电路。
其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。例如，处理装置可以包括一个或多个存储器以及一个或多个处理器。其中，所述一个或多个存储器用于存储计算机程序，所述一个或多个处理器读取并执行所述一个或多个存储器中存储的计算机程序，使得终端装置900执行各方法实施例中由第二终端装置执行的操作和/或处理。
可选地，处理装置也可以仅包括所述一个或多个处理器，所述一个或多个储存器位于处理装置之外。所述一个或多个处理器通过电路/电线与所述一个或多个存储器连接，以读取并执行存储器中存储的计算机程序。
可选地，在一个实施例中，收发单元910可以为终端设备中的射频装置，处理单元920可以为基带装置。
参见图11，图11为本申请提供的通信装置1000的示意性结构图。如图11所示，通信装置1000包括收发单元1100和处理单元1200。
收发单元1100，用于从第二终端装置接收第二指示信息，所述第二指示信息用于指示第一终端装置采用非DRX模式或DRX模式，
其中，所述非DRX模式为所述第一终端装置在非授权资源单元内的第一监测时长内监测信号，所述DRX模式为第一终端装置在非授权资源单元内的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，在所述非授权资源单元内的休眠时长内停止监测；
所述处理单元1200，还用于根据所述收发单元1100接收到的所述第二指示信息，控制所述收发单元1100向所述第一终端装置发送第一指示信息，所述第一指示信息用于指示所述非DRX模式或所述DRX模式。
在一个实施例中，所述第二指示信息携带于来自所述第二终端装置的PUSCH、PUSCH的MAC CE或第一类型的PUCCH中。
在一个实施例中，所述第二指示信息为第一信号或第二信号，所述第一信号用于指示所述第一终端装置采用所述DRX模式，所述第二信号用于指示所述第一终端装置采用所述非DRX模式；以及，
所述收发单元1100用于接收到来自所述第二终端装置的所述第一信号的情况下，向 所述第一终端装置发送所述第一指示信息，所述第一指示信息用于指示所述DRX模式；
或者，所述接收单元1100用于接收到来自所述第二终端装置的所述第二信号的情况下，向所述第一终端装置发送所述第一指示信息，所述第一指示信息用于指示所述非DRX模式。
在一个实施例中，所述第一信号为第二类型的第一PUCCH，所述第二信号为第二类型的第二PUCCH，构成所述第一PUCCH和所述第二PUCCH的参考序列不同。
在一个实施例中，所述第一信号为第一SR，所述第二信号为第二SR，构成所述第一SR和第二SR的参考序列不同。
在一个实施例中，所述收发单元1100，用于接收来自所述第一终端装置的侧行链路物理层的第一地址信息，以及来自所述第二终端装置的侧行链路物理层的第二地址信息；
所述处理单元1200，还用于建立所述第一地址信息、所述第二地址信息和第一终端装置以及第二终端装置各自的空口链路物理层的地址信息之间的映射关系；
以及，所述处理单元1200，还用于根据所述收发单元1100接收所述第二指示信息的空口链路物理层的地址信息，确定所述第二地址信息；以及，根据所述第二地址信息和所述映射关系，确定和所述第二地址信息对应的所述第一地址信息；
所述收发单元1100，还用于向所述处理单元1200确定的所述第一地址信息对应的所述第一终端装置发送所述第一指示信息。
其中，空口链路物理层的地址信息即为Uu link layer_1的地址信息。侧行链路物理层的地址信息即为sidelink layer_1的地址信息。
在一个实施例中，第一指示信息携带于所述收发单元1100发送的DCI或PDSCH中。
可选地，通信装置1000可以为网络设备，例如，接入网设备。通信装置1000可以完全对应方法实施例中的网络设备。收发单元1100可以为收发器。收发器可以由接收器或者发射器代替。例如，收发器在执行发送的动作时，可以由发送器替代。收发器执行接收的动作时，可以由接收器代替。处理单元1200可以为处理装置，例如，处理器。
可选地，通信装置1000可以为安装在网络设备中的电路***，所述电路***可以为芯片、集成电路或片上***(system on chip,SoC)等。此时，收发单元1100可以为通信接口。例如，收发单元1100可以为输入/输出接口或接口电路。输入输出电路可以包括输入接口和输出接口。接口电路可以包括输入接口电路和输出接口电路。处理单元1200可以为处理电路。
其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。例如，处理装置可以包括一个或多个存储器以及一个或多个处理器。其中，所述一个或多个存储器用于存储计算机程序，所述一个或多个处理器读取并执行所述一个或多个存储器中存储的计算机程序，使得通信装置1000执行各方法实施例中由网络设备执行的操作和/或处理。
可选地，处理装置也可以仅包括所述一个或多个处理器，所述一个或多个储存器位于处理装置之外。所述一个或多个处理器通过电路/电线与所述一个或多个存储器连接，以读取并执行存储器中存储的计算机程序。
可选地，在一个实施例中，收发单元1100可以为网络设备中的射频装置，处理单元1200可以为基带装置。
参见图12，图12为本申请提供的终端装置10的示意性结构图。如图12所示，终端装置10包括：一个或多个处理器11，一个或多个存储器12，以及一个或多个通信接口13。其中，处理器11用于控制通信接口13收发信号，存储器12用于存储计算机程序，处理器11用于从存储器12中调用并运行所述计算机程序，使得终端装置10执行本申请的各方法实施例中由第一终端装置执行的处理和/或操作。
例如，处理器11可以具有图6中所示的处理单元520的功能，通信接口13可以具备图9中所示的收发单元810的功能。处理器11执行的操作和/或处理可以参见图9中对处理单元820的说明，通信接口13执行的操作和/或处理可以参见对收发单元810的说明。
或者说，装置实施例中处理单元810可以由处理器11代替，装置实施例中收发单元820可以由通信接口13代替。
参见图13，图13为本申请提供的终端装置20的示意性结构图。如图13所示，终端装置20包括：一个或多个处理器21，一个或多个存储器22，以及一个或多个通信接口23。其中，处理器21用于控制通信接口23收发信号，存储器22用于存储计算机程序，处理器21用于从存储器22中调用并运行所述计算机程序，使得终端装置20执行本申请的各方法实施例中由第二终端装置执行的处理和/或操作。
例如，处理器21可以具有图10中所示的处理单元920的功能，通信接口23可以具备图10中所示的收发单元910的功能。处理器21执行的操作和/或处理可以参见图10中对处理单元920的说明，通信接口23执行的操作和/或处理可以参见对收发单元910的说明。
或者说，装置实施例中处理单元910可以由处理器21代替，装置实施例中收发单元920可以由通信接口23代替。
可选地，在一个实施例中，处理器31可以为第二终端设备中的基带装置，通信接口33可以为第二终端设备中的射频装置。
参见图14，图14为本申请提供的通信装置30的示意性结构图。如图14所示，通信装置30包括：一个或多个处理器31，一个或多个存储器32，以及一个或多个通信接口33。其中，处理器31用于控制通信接口33收发信号，存储器32用于存储计算机程序，处理器31用于从存储器32中调用并运行所述计算机程序，使得通信装置30执行本申请的各方法实施例中由网络设备执行的处理和/或操作。
例如，处理器31可以具有图11中所示的处理单元1200的功能，通信接口33可以具备图11中所示的收发单元1100的功能。处理器31执行的操作和/或处理可以参见图11中对处理单元1200的说明，通信接口33执行的操作和/或处理可以参见对收发单元1100的说明。
或者说，装置实施例中处理单元1100可以由处理器31代替，装置实施例中收发单元1200可以由通信接口33代替。
可选地，处理器31可以为网络设备中的基带装置，通信接口33可以为网络设备中的射频装置。
可选地，上述各装置实施例中的存储器和处理器可以是物理上相互独立的单元，或者，存储器和处理器也可以集成在一起。
此外，本申请还提供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计 算机指令，当所述计算机指令在计算机上运行时，使得计算机执行本申请提供的用于非授权频段的DRX的方法中由第一终端装置执行的操作和/或处理。
本申请还提供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计算机指令，当所述计算机指令在计算机上运行时，使得计算机执行本申请提供的用于非授权频段的DRX的方法中由第二终端装置执行的操作和/或处理。
本申请还提供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计算机指令，当所述计算机指令在计算机上运行时，使得计算机执行本申请提供的用于非授权频段的DRX的方法中由网络设备执行的操作和/或处理。
本申请还提供一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行本申请提供的用于非授权频段的DRX的方法中由第一终端装置执行的操作和/或处理。
本申请还提供一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行本申请提供的用于非授权频段的DRX的方法中由第二终端装置执行的操作和/或处理。
本申请还提供一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行本申请提供的用于非授权频段的DRX的方法中由网络设备执行的操作和/或处理。
本申请还提供一种终端装置，包括处理器和接口电路，所述接口电路用于接收计算机代码或指令，并传输至所述处理器，所述处理器用于运行所述计算机代码或指令，以执行本申请提供的用于非授权频段的DRX的方法中由第一终端装置执行的操作和/或处理。
本申请还提供一种终端装置，包括处理器和接口电路，所述接口电路用于接收计算机代码或指令，并传输至所述处理器，所述处理器用于运行所述计算机代码或指令，以执行本申请提供的用于非授权频段的DRX的方法中由第二终端装置执行的操作和/或处理。
本申请还提供一种通信装置，包括处理器和接口电路，所述接口电路用于接收计算机代码或指令，并传输至所述处理器，所述处理器用于运行所述计算机代码或指令，以执行本申请提供的用于非授权频段的DRX的方法中由网络设备执行的操作和/或处理。
本申请还提供一种芯片，所述芯片包括一个或多个处理器。所述一个或多个处理器用于执行存储器中存储的计算机程序，以执行任意一个方法实施例中由第一终端装置执行的操作和/或处理。其中，用于存储计算机程序的存储器独立于所述芯片之外而设置。
进一步地，所述芯片还可以包括一个或多个通信接口。所述一个或多个通信接口可以是输入/输出接口，输入/输出电路等。进一步地，所述芯片还可以包括一个或多个所述存储器。
本申请还提供一种芯片，所述芯片包括一个或多个处理器。所述一个或多个处理器用于执行存储器中存储的计算机程序，以执行任意一个方法实施例中由第二终端装置执行的操作和/或处理。其中，用于存储计算机程序的存储器独立于所述芯片之外而设置。
进一步地，所述芯片还可以包括一个或多个通信接口。所述一个或多个通信接口可以是输入/输出接口，输入/输出电路等。进一步地，所述芯片还可以包括一个或多个所述存储器。
本申请还提供一种芯片，所述芯片包括一个或多个处理器，所述一个或多个处理器用 于执行存储器中存储的计算机程序，以执行任意一个方法实施例中由网络设备执行的操作和/或处理。其中，用于存储计算机程序的存储器独立于所述芯片之外而设置。
进一步地，所述芯片还可以包括一个或多个通信接口。所述一个或多个通信接口可以是输入/输出接口，输入/输出电路等。进一步地，所述芯片还可以包括一个或多个所述存储器。
此外，本申请还提供一种无线通信***，包括本申请实施例中的第一终端装置、第二终端装置和网络设备中的一个或多个。
上述实施例中提及的处理器具有处理信号的能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。本申请实施例公开的方法的步骤可以直接体现为硬件编码处理器执行完成，或者用编码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
上述实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DRRAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在本说明书中使用的术语“单元”、“***”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中。部件可位于一个计算机上和/或分布在两个或更多个计算机之间。此外，这些部件可从上面存储有各种数据结构的各种计算机可读介质执行。部件可根据具有一个或多个数据分组(例如，来自与本地***、分布式***和/或网络间的另一部件交互的二个部件的数据，例如，通过信号与其它***交互的互联网)的信号通过本地和/或远程进程来通信。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及 算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (40)

  1. 一种用于非授权频段的非连续接收DRX的方法，其特征在于，包括：
    第一终端装置在非DRX模式下监测P个非授权资源单元，所述非DRX模式为所述第一终端装置在所述P个非授权资源单元内的第一监测时长内监测信号；
    在所述第一终端装置在连续P个所述非授权资源单元未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，所述第一终端装置从所述非DRX模式切换到DRX模式，其中，在所述DRX模式下，所述非授权资源单元包括第二监测时长和休眠时长，所述DRX模式为所述第一终端装置在所述第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，在所述休眠时长内停止监测，P≥1且P为整数。
  2. 根据权利要求1所述的方法，其特征在于，所述未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况为以下一种或多种：
    所述第一终端装置在连续P个所述非授权资源单元上监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号，所述侧行信号和所述下行信号的目的地址不同于所述第一终端装置的地址；或者，
    所述第一终端装置在连续P个所述非授权资源单元中未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号，且连续P个所述非授权资源单元上的接收信号强度指示RSSI低于预设门限。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一终端装置从所述非DRX模式切换到DRX模式之后，所述方法还包括：
    所述第一终端装置在所述DRX模式下监测非授权资源单元；
    所述第一终端装置在所述第二监测时长内监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，所述第一终端装置从所述DRX模式切换到所述非DRX模式。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于，所述非授权资源单元在时域上包括多个时间单元，所述第二监测时长包括所述多个时间单元中的部分时间单元，所述时间单元为以下任意一项：
    毫秒、符号或时隙。
  5. 一种用于非授权频段的DRX的方法，其特征在于，包括：
    第一终端装置接收第一指示信息，所述第一指示信息用于指示所述第一终端装置采用非DRX模式或DRX模式，
    其中，所述非DRX模式为所述第一终端装置在非授权资源单元内的第一监测时长内监测信号，所述DRX模式为所述第一终端装置在所述非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，在所述非授权资源单元的休眠时长内停止监测；
    所述第一终端装置根据所述第一指示信息，采用所述DRX模式或所述非DRX模式。
  6. 根据权利要求5所述的方法，其特征在于，所述第一指示信息携带于来自网络设备的同步信号块SSB、无线资源控制RRC信令、物理下行共享信道PDSCH的媒体访问控制控制元素MAC CE或下行控制信息DCI中。
  7. 根据权利要求5所述的方法，其特征在于，所述第一指示信息携带于来自第二终端装置的侧行链路同步信号块SL-SSB或者PC5接口-无线资源控制PC5-RRC信令中。
  8. 根据权利要求5所述的方法，其特征在于，所述第一指示信息为第一信号或第二信号，所述第一信号用于指示所述第一终端装置采用所述DRX模式，所述第二信号用于指示所述第一终端装置采用所述非DRX模式；
    所述第一终端装置根据所述第一指示信息，采用所述DRX模式或非DRX模式，包括：
    所述第一终端装置接收到所述第一信号的情况下，采用所述DRX模式；或者，
    所述第一终端装置接收到所述第二信号的情况下，采用所述非DRX模式。
  9. 根据权利要求8所述的方法，其特征在于，所述第一信号为第一DMRS，所述第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
  10. 根据权利要求5-9中任一项所述的方法，其特征在于，所述第一终端装置接收第一指示信息之前，所述方法还包括：
    所述第一终端装置向所述网络设备注册所述第一终端装置的侧行链路物理层的地址信息。
  11. 一种用于非授权频段的DRX的方法，其特征在于，包括：
    第二终端装置发送第一指示信息或第二指示信息，所述第一指示信息或所述第二指示信息用于指示第一终端装置采用非DRX模式或DRX模式；
    其中，所述非DRX模式为所述第一终端装置在非授权资源单元的第一监测时长内监测信号，所述DRX模式为第一终端装置在非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，在所述非授权资源单元内的休眠时长内停止监测。
  12. 根据权利要求11所述的方法，其特征在于，所述第一指示信息携带于所述第二终端装置发送的SL-SSB或者PC5-RRC信令中。
  13. 根据权利要求12所述的方法，其特征在于，所述第二指示信息携带于所述第二终端终端装置发送的PUSCH的MAC CE或第一类型的PUCCH中，所述第一类型的PUCCH在时域上占满一个时隙。
  14. 根据权利要求11所述的方法，其特征在于，所述第二指示信息为第一信号或第二信号，所述第一信号用于指示所述第一终端装置采用所述DRX模式，所述第二信号用于指示所述第一终端装置采用所述非DRX模式。
  15. 根据权利要求14所述的方法，其特征在于，所述第一信号为第一DMRS，所述第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
  16. 根据权利要求14所述的方法，其特征在于，所述第一信号为第二类型的第一PUCCH，所述第二信号为第二类型的第二PUCCH，构成所述第一PUCCH和所述第二PUCCH的参考序列不同，第二类型的PUCCH在时域上未占满一个时隙。
  17. 根据权利要求14所述的方法，其特征在于，所述第一信号为第一调度请求SR，所述第二信号为第二SR，构成所述第一SR和所述第二SR的参考序列不同。
  18. 根据权利要求13,16-17中任一项所述的方法，其特征在于，所述第二终端装置发送第一信号或第二信号之前，所述方法还包括：
    所述第二终端装置向网络设备注册所述第二终端装置的侧行链路物理层的地址信息。
  19. 一种终端装置，其特征在于，包括：
    收发器，用于在非DRX模式下监测P个非授权资源单元，所述非DRX模式为所述第一终端装置在所述P个非授权资源单元内的第一监测时长内监测信号；
    处理器，用于在所述收发器在连续P个所述非授权资源单元未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的情况下，控制所述收发器从所述非DRX模式切换到DRX模式，其中，在所述DRX模式下，所述非授权资源单元包括第二监测时长和休眠时长，所述DRX模式为所述终端装置在所述第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的情况下，在所述休眠时长内停止监测，P≥1且P为整数。
  20. 根据权利要求19所述的终端装置，其特征在于，所述收发器未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的情况为以下一种或多种：
    所述收发器在连续P个所述非授权资源单元上监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号，所述侧行信号和所述下行信号的目的地址不同于所述终端装置的地址；或者，
    所述收发器在连续P个所述非授权资源单元上未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号，且连续P个所述非授权资源单元上的接收信号强度指示RSSI低于预设门限。
  21. 根据权利要求19或20所述的终端装置，其特征在于，所述收发器还用于在所述DRX模式下监测非授权资源单元；
    以及，所述处理器还用于在所述第二监测时长内监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的清苦下，控制所述收发器从所述DRX模式切换到所述非DRX模式。
  22. 根据权利要求19-21中任一项所述的终端装置，其特征在于，所述非授权资源单元在时域上包括多个时间单元，所述第二监测时长包括所述多个时间单元中的部分时间单元，所述时间单元为以下任意一项：
    毫秒、符号或时隙。
  23. 一种终端装置，其特征在于，包括：
    收发器，用于接收第一指示信息，所述第一指示信息用于指示所述终端装置采用非DRX模式或DRX模式，其中，所述非DRX模式为所述终端装置在非授权资源单元内的第一监测时长内监测信号，所述DRX模式为所述终端装置在所述非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述终端装置的侧行信号和/或对应所述终端装置的下行信号的情况下，在所述非授权资源单元的休眠时长内停止监测；
    处理器，用于根据所述第一指示信息，控制所述收发器采用所述DRX模式或所述非DRX模式。
  24. 根据权利要求23所述的终端装置，其特征在于，所述第一指示信息携带于来自 网络设备的同步信号块SSB、无线资源控制RRC信令、物理下行共享信道PDSCH的媒体访问控制控制元素MAC CE或下行控制信息DCI中。
  25. 根据权利要求23所述的终端装置，其特征在于，所述第一指示信息携带于来自第二终端装置的侧行链路同步信号块SL-SSB或者PC5接口-无线资源控制PC5-RRC信令中。
  26. 根据权利要求23所述的终端装置，其特征在于，所述第一指示信息为第一信号或第二信号，所述第一信号用于指示所述终端装置采用所述DRX模式，所述第二信号用于指示所述终端装置采用所述非DRX模式；
    所述处理器具体用于：
    在所述收发器接收到所述第一信号的情况下，控制所述收发器采用所述DRX模式；或者，
    在所述收发器接收到所述第二信号的情况下，控制所述收发器采用所述非DRX模式。
  27. 根据权利要求26所述的终端装置，其特征在于，所述第一信号为第一DMRS，所述第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
  28. 根据权利要求23-27中任一项所述的终端装置，其特征在于，所述处理器还用于向网络设备注册所述终端装置的侧行链路物理层的地址信息。
  29. 一种终端装置，其特征在于，包括：
    收发器，用于发送第一指示信息或第二指示信息，所述第一指示信息或第二指示信息用于指示第一终端装置采用非DRX模式或DRX模式；
    其中，所述非DRX模式为所述第一终端装置在非授权资源单元的第一监测时长内监测信号，所述DRX模式为第一终端装置在非授权资源单元的第二监测时长内监测信号，并在所述第二监测时长内未监测到对应所述第一终端装置的侧行信号和/或对应所述第一终端装置的下行信号的情况下，在所述非授权资源单元内的休眠时长内停止监测。
  30. 根据权利要求29所述的终端装置，其特征在于，所述第一指示信息携带于所述收发器发送的SL-SSB或者PC5-RRC信令中。
  31. 根据权利要求29所述的终端装置，其特征在于，所述第二指示信息携带于所述收发器发送的PUSCH的MAC CE或第一类型的PUCCH中，所述第一类型的PUCCH在时域上占满一个时隙。
  32. 根据权利要求29所述的终端装置，其特征在于，所述第二指示信息为第一信号或第二信号，所述第一信号用于指示所述第一终端装置采用所述DRX模式，所述第二信号用于指示所述第一终端装置采用所述非DRX模式。
  33. 根据权利要求32所述的终端装置，其特征在于，所述第一信号为第一DMRS，所述第二信号为第二DMRS，构成所述第一DMRS和所述第二DMRS的参考序列不同。
  34. 根据权利要求32所述的终端装置，其特征在于，所述第一信号为第二类型的第一PUCCH，所述第二信号为第二类型的第二PUCCH，构成所述第一PUCCH和所述第二PUCCH的参考序列不同，第二类型的PUCCH在时域上未占满一个时隙。
  35. 根据权利要求32所述的终端装置，其特征在于，所述第一信号为第一调度请求SR，所述第二信号为第二SR，构成所述第一SR和所述第二SR的参考序列不同。
  36. 根据权利要求31，34-35中任一项所述的终端装置，其特征在于，所述终端装置 还包括：
    处理器，用于向网络设备注册所述终端装置的侧行链路物理层的地址信息。
  37. 一种终端装置，其特征在于，所述终端装置包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器，用于执行所述至少一个存储器中存储的计算机程序或指令，以使得所述终端装置执行如权利要求1-18中任一项所述的方法。
  38. 一种计算机可读存储介质，其特征在于，包括计算机程序，当所述计算机程序在计算机上运行时，使得计算机执行如权利要求1-18中任一项所述的方法。
  39. 一种芯片，其特征在于，包括存储器和处理器，所述存储器用于存储计算机程序，所述处理器用于从读取并执行所述存储器中存储的计算机程序，以执行如权利要求1-18中任一项所述的方法。
  40. 一种无线通信***，其特征在于，包括如权利要求19-28中任一项所述的终端装置和/或如权利要求29-36中任一项所述的终端装置。
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