WO2022027639A1 - 信号接收方法、信号发送方法、终端设备及存储介质 - Google Patents

信号接收方法、信号发送方法、终端设备及存储介质 Download PDF

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Publication number
WO2022027639A1
WO2022027639A1 PCT/CN2020/107941 CN2020107941W WO2022027639A1 WO 2022027639 A1 WO2022027639 A1 WO 2022027639A1 CN 2020107941 W CN2020107941 W CN 2020107941W WO 2022027639 A1 WO2022027639 A1 WO 2022027639A1
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WIPO (PCT)
Prior art keywords
message
terminal device
signal
downlink
side link
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PCT/CN2020/107941
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English (en)
French (fr)
Inventor
卢前溪
Original Assignee
Oppo广东移动通信有限公司
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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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202080101512.0A priority Critical patent/CN115669154A/zh
Priority to PCT/CN2020/107941 priority patent/WO2022027639A1/zh
Publication of WO2022027639A1 publication Critical patent/WO2022027639A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a signal receiving method, a signal sending method, a terminal device and a storage medium.
  • a terminal device can receive a downlink signal sent by a network device through a downlink, and the terminal device can also send an uplink signal to the network device through an uplink.
  • the terminal device can also communicate with other terminal devices through the side link, that is, the terminal device can receive the side link signal sent by other terminal devices through the side link, and the terminal device can also use the side link. Send side link signals to other end devices.
  • the terminal equipment has limited ability to receive signals, for example, the terminal equipment cannot receive downlink signals and side link signals in the same time period, that is, the terminal equipment collides when receiving downlink signals and side link signals, then the terminal equipment How to solve the conflict is a technical problem that needs to be solved urgently at present.
  • Embodiments of the present invention provide a signal receiving method, a signal sending method, a terminal device and a storage medium, which can preferentially receive downlink signals from network devices that meet preset conditions when there is a conflict in signal reception, thereby improving signal processing efficiency.
  • an embodiment of the present application provides a signal receiving method, including:
  • the first terminal device preferentially receives the downlink signal from the network device that meets the preset condition.
  • an embodiment of the present application provides a signal sending method, including:
  • the third terminal device preferentially sends the uplink signal that meets the preset condition.
  • an embodiment of the present application provides a terminal device, where the terminal device has a function of implementing the above signal receiving method.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above functions.
  • an embodiment of the present application provides a terminal device, where the terminal device includes a processor, and the processor is coupled to the memory, wherein:
  • the memory for storing instructions
  • the processor is configured to preferentially receive downlink signals from network devices that meet preset conditions.
  • an embodiment of the present application provides a terminal device, where the terminal device has a function of implementing the above signal sending method.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above functions.
  • an embodiment of the present application provides a terminal device, the terminal device includes a processor, and the processor is coupled to the memory, wherein:
  • the memory for storing instructions
  • the processor is configured to preferentially send uplink signals that meet preset conditions.
  • an embodiment of the present application provides a computer storage medium, wherein the computer-readable storage medium stores a computer program or instruction, and when the program or instruction is executed by a processor, the processor executes the program or instruction.
  • embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the Part or all of the steps described in the first aspect of the application embodiment.
  • the computer program product may be a software installation package.
  • an embodiment of the present application provides a computer storage medium, wherein the computer-readable storage medium stores a computer program or instruction, and when the program or instruction is executed by a processor, the processor is made to execute the program or instruction.
  • embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the Part or all of the steps described in the second aspect of the application embodiment.
  • the computer program product may be a software installation package.
  • the first terminal device can preferentially receive a downlink signal from a network device that meets a preset condition, so as to respond to the downlink signal in time, which can improve signal processing efficiency.
  • the third terminal device can preferentially send the uplink signal that meets the preset condition, so that the receiving end of the uplink signal can respond to the uplink signal in time, which can improve the signal processing efficiency.
  • FIG. 1 is a system architecture diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is an example diagram of a signal receiving method provided by an embodiment of the present application
  • FIG. 3 is an example diagram of a signal sending method provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another terminal device provided by an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • Time Division Duplex Time Division Duplex
  • TDD time Division Duplex
  • LTE-A advanced long term evolution
  • New Radio New Radio
  • NR new Radio
  • LTE LTE-based access to unlicensed
  • LTE-U NR-U system
  • MIMO system wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, WiFi), next-generation communication system or other communication systems.
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a first terminal device 120 (or referred to as a communication terminal, a terminal).
  • the communication system 100 further includes at least one first terminal device 120 located within the coverage of the network device 110 .
  • the communication system 100 further includes a second terminal device 130, and D2D communication, M2M communication, MTC, or V2V communication can be performed between the first terminal device 120 and the second terminal device 130.
  • FIG. 1 exemplarily shows a communication system 100
  • the communication system 110 includes a network device 110 , a first terminal device 120 and a second terminal device 130 .
  • the first terminal device 120 and the network device 110 may be connected wirelessly or wiredly.
  • the first terminal device 120 may receive the downlink signal sent by the network device 110 through the downlink, and the first terminal device 120 may also send the uplink signal to the network device 110 through the uplink.
  • the first terminal device 120 can receive the side link signal sent by the second terminal device 130 through the side link, and the first terminal device 120 can also send the side link signal to the second terminal device 130 through the side link.
  • the network device may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network
  • the device can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved communication system, etc.
  • a terminal device may be referred to as a "wireless communication terminal", a “wireless terminal”, or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, fax, and data communications capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, end devices in 5G networks or end devices in future evolved communication systems, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the 5G system or 5G network may also be referred to as a new radio (New Radio, NR) system or NR network.
  • New Radio NR
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include one or more terminal devices, which is not limited in this embodiment of the present application.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • FIG. 2 is a signal receiving method provided by an embodiment of the present application, which is applied to the above-mentioned example communication system.
  • the method includes:
  • a network device sends a downlink signal to a first terminal device.
  • the first terminal device can directly receive the downlink signal from the network device. Downlink signal from the device.
  • the network device sends a downlink signal to the first terminal device
  • the first terminal device can determine the time-frequency domain resource for receiving the downlink signal. If there is no side link signal from other terminal equipment on the time-frequency domain resource, which means that there is no signal receiving conflict, then the first terminal equipment does not need to determine whether the downlink signal meets the preset condition, but directly receive the downlink signal.
  • the other terminal equipment may be a device that establishes a side link connection with the first terminal equipment, for example, other terminal equipment may perform D2D communication, M2M communication, MTC, Or V2V communication, etc.
  • the other terminal device may be the second terminal device in this embodiment of the present application.
  • the second terminal device sends a side link signal to the first terminal device.
  • the second terminal device may send the side link signal to the first terminal device through the side link connection established with the first terminal device.
  • D2D communication, M2M communication, MTC, or V2V communication, etc. may be performed between the second terminal device and the first terminal device through a lateral link connection.
  • the first terminal device preferentially receives the downlink signal from the network device that meets the preset condition.
  • the first terminal device can detect whether the downlink signal satisfies the preset condition, if the downlink signal If the signal satisfies the preset condition, the first terminal device preferentially receives the downlink signal.
  • the first terminal device receives the downlink signal from the network device that meets the preset condition. That is, if there is a side link signal from the second terminal device that overlaps with the downlink signal, the first terminal device preferentially receives the downlink signal from the network device that meets the preset condition.
  • the side link signal from the second terminal device that overlaps with the downlink signal can be understood as: the downlink signal and the side link signal overlap in the time domain, or the downlink signal and the side link signal overlap in the frequency domain , or the downlink signal and the side link signal overlap in the time-frequency domain.
  • the downlink signal and the side link signal overlap in the time-frequency domain that is, the downlink signal and the side link signal overlap not only in the time domain, but also in the frequency domain.
  • the first terminal device receives Downlink signals from network equipment. That is, if there is a side link signal from the second terminal device, and the first terminal device does not have the ability to receive the downlink signal and the side link signal in the same time period, the first terminal device preferentially receives the signal from the network Downlink signal from the device.
  • the first terminal device can detect whether the first terminal device is capable of simultaneously receiving downlink signals and side link signals, and if the first terminal device is capable of simultaneously receiving downlink signals and side link signals, then the first terminal device The device does not need to detect whether the downlink signal from the network device meets the preset conditions, nor does it need to detect whether there is a side link signal from the second terminal device, nor does it need to detect the side link signal from the second terminal device and the first terminal device. Whether the downlink signals of the terminal device overlap, but directly receive the downlink signal from the network device and/or the side link signal from the second terminal device.
  • the first terminal device If the capability of the first terminal device is limited, for example, the first terminal device does not have the capability to receive downlink signals and side link signals at the same time, then when the first terminal device detects that there is a side link signal from the second terminal device, the It will detect whether there is a downlink signal from the network device that meets the preset condition, and if there is a downlink signal from the network device that meets the preset condition, the first terminal device preferentially receives the downlink signal from the network device that meets the preset condition; if If there is no downlink signal from the network device that meets the preset condition, the first terminal device can receive the side link signal from the second terminal device. If the capability of the first terminal device is limited, and the first terminal device detects that there is a downlink signal from the network device that meets the preset conditions, the first terminal device will Priority is given to receiving downlink signals from network devices that meet preset conditions.
  • the first terminal device preferentially receives a downlink signal from a network device that meets a preset condition, so as to respond to the downlink signal in time, which can improve signal processing efficiency.
  • this embodiment of the present application specifically describes downlink signals that meet preset conditions.
  • the downlink signal satisfying the preset condition may include a Master Information Block (MIB) message.
  • MIB Master Information Block
  • the first terminal device when the first terminal device performs time and frequency synchronization with a certain cell, it needs to acquire a synchronization signal and a PBCH block (Synchronization Signal and PBCH block, SSB).
  • the SSB may include synchronization channels and MIB messages.
  • the first terminal device After the first terminal device acquires the MIB message, the first terminal device can determine the time-frequency domain position and repetition rule of the MIB in the above-mentioned cell. Therefore, the first terminal device has a relatively high demand for the reception delay of the MIB message, that is, the smaller the reception delay of the first terminal device to receive the MIB message, the more efficient the time and frequency synchronization between the first terminal device and the above-mentioned cell is.
  • the first terminal device acquires the MIB message as soon as possible, and can perform time and frequency synchronization with the above-mentioned cell as soon as possible.
  • the first terminal device may acquire a system information block (System Information Block, SIB) 1, and the SIB1 may include information indicating the SSB actually sent by the network device.
  • SIB System Information Block
  • the first terminal device can determine the specific time-frequency domain location of the MIB message according to the information.
  • the first terminal device when the first terminal device receives the MIB message at the determined time-frequency domain position of the MIB message, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the side link signal.
  • the reception of the link signal that is, the priority to receive the MIB message.
  • this embodiment of the present application specifically describes downlink signals that meet preset conditions.
  • the downlink signal satisfying the preset condition may include a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the PDCCH is an accompanying control channel when receiving other channels except the MIB and the shared channel of preconfigured resources, that is to say, the first terminal device can only further decode the PDCCH after receiving the PDCCH channel, Determine other channels pointed to by the PDCCH, and then receive other channels from the network device.
  • the other channel may be a Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH).
  • the first terminal device when the first terminal device attempts to receive the PDCCH, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, give priority to reception PDCCH.
  • this embodiment of the present application specifically describes downlink signals that meet preset conditions.
  • the downlink signal satisfying the preset condition may include: a PDSCH indicated by a PDCCH scrambled by a radio network temporary identity (Radio Network Tempory Identity, RNTI).
  • RNTI Radio Network Tempory Identity
  • the PDSCH may be a channel indicated by the PDCCH scrambled by the system information-wireless network temporary identifier SI-RNTI, and the PDSCH carries SIB1.
  • the PDCCH configuration information required for receiving the SIB1 can be obtained through the MIB.
  • the first terminal device may also acquire the PDCCH configuration information required for receiving the SIB1 through the dedicated channel.
  • the first terminal device may attempt to receive the SIB1 message in which the SI-RNTI is convoluted on the PDCCH corresponding to the PDCCH configuration information. Based on this, when the first terminal device receives the SIB1 message, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, preferentially receive SIB1.
  • the PDSCH may be a channel indicated by a PDCCH scrambled by SI-RNTI, and the search space of the PDCCH is a search space for other system messages, and the above PDSCH carries other system messages.
  • the PDCCH configuration information may include search spaces for other system messages.
  • the first terminal device may receive the system message in which the SI-RNTI is convoluted on the PDCCH of the search space for other system messages. Based on this, when the first terminal device is receiving other system messages, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, preferentially receive other system information.
  • the PDSCH may be a channel indicated by the PDCCH scrambled by the paging-wireless network temporary identifier P-RNTI, the search space of the PDCCH is the search space for paging messages, and the PDSCH carries the paging information.
  • the paging message may include a short message for system message update.
  • the PDCCH configuration information may include a search space for paging messages.
  • the first terminal device may receive the system message in which the P-RNTI is convoluted on the PDCCH of the search space for paging messages. Based on this, when the first terminal device is receiving the paging message, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, preferentially receive the paging message. call message.
  • the PDSCH may be a channel indicated by the PDCCH scrambled by the random access-radio network temporary identifier RA-RNTI, the PDSCH carries the second message, and the second message is a 4-step random access procedure In the message from the network device, the second message is generated by the network device after receiving the first message sent from the first terminal device, and the first message may be a preamble.
  • the first terminal device when the first terminal device initiates 4-step random access, after the first terminal device sends the preamble (ie, the first message), it will wait for the second message from the network device,
  • the RA-RNTI is convolved on the PDCCH on which the second message is sent, and the first terminal device determines in which time period (ie, the receiving window of the second message) the second message is received. Based on this, when the first terminal device is receiving the second message, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, give priority to receiving second message.
  • the PDSCH may be a channel indicated by the PDCCH scrambled by the Temp-Wireless Network Temporary Identifier TEMP-RNTI or the Cell-Wireless Network Temporary Identifier C-RNTI, wherein the PDSCH carries the fourth message, the The four messages are messages from the network device in the 4-step random access process, and the fourth message is generated by the network device after receiving the third message from the first terminal device, so the fourth message is generated by the network device after receiving the third message from the first terminal device.
  • the third message is generated when the first terminal device receives the second message from the network device.
  • the second message is generated when the network device receives the first message sent from the first terminal device, and the first message may be a preamble.
  • the first terminal device after the first terminal device sends the third message to the network device, according to different reasons for actually initiating the Random Access Channel (RACH) process, the first terminal device is receiving the fourth message.
  • RACH Random Access Channel
  • the first terminal device When sending a message, it will try to receive the PDCCH convolved with TEMP-RNTI or C-RNTI. Based on this, when the first terminal device is receiving the fourth message, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, give priority to receiving Fourth message.
  • the fourth message may include a downlink common control channel (Common Control Channel, CCCH) and/or a downlink dedicated control channel (DedicatedControlCHannel, DCCH).
  • CCCH Common Control Channel
  • DCCH Downlink dedicated control channel
  • the fourth message when the fourth message includes a downlink CCCH, the fourth message may include a radio resource control (Radio Resource Control, RRC) connection establishment Setup message and a radio resource control connection disconnection RRC Reject message.
  • RRC Radio Resource Control
  • the fourth message when the fourth message includes a downlink DCCH, the fourth message may include a radio resource control connection restoration RRC Resume message and a radio resource control connection reestablishment RRC Restablishment message.
  • the fourth message in the above RACH process may include the downlink CCCH, and may also include the downlink DCCH. If the fourth message contains the DCCH, then the fourth message may contain the RRCResume message and the RRCRestablishment message. If the fourth message contains CCCH, then the fourth message may contain RRC Setup message and RRC Reject message.
  • the PDSCH may be the channel indicated by the PDCCH scrambled by the message B-Wireless Network Temporary Identifier MSGB-RNTI, the PDSCH carries the message B, and the message B is from the 2-step random access process.
  • the message of the network device, the message B is generated by the network device after receiving the message A from the first terminal device.
  • the first terminal device when the first terminal device initiates the 2-step random access, the first terminal device will first send the message A, and then prepare to receive the message B from the network device in the receiving window.
  • the MSGB-RNTI is convolved on the PDCCH on which the network device sends the message B. Based on this, when the first terminal device is receiving message B, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal, that is, preferentially receive message B .
  • the message A is the first message in the 2-step random access process
  • the message B is the second message in the 2-step random access process.
  • message B may include downlink CCCH and/or downlink DCCH.
  • the message B may include an RRC Setup message and an RRC Reject message.
  • the message B may include an RRC Resume message and an RRC Restablishment message.
  • the message B in the above RACH process may include the downlink CCCH, and may also include the downlink DCCH. If message B contains DCCH, then message B may contain RRCResume message and RRCRestablishment message. If message B contains CCCH, then message B may contain RRC Setup message and RRC Reject message.
  • this embodiment of the present application specifically describes downlink signals that meet preset conditions.
  • the downlink signal that satisfies the preset condition may include: the PDSCH indicated by the priority indication information in the downlink control information (Downlink Control Information, DCI), and the DCI is carried on the PDCCH.
  • DCI Downlink Control Information
  • the first terminal device when the first terminal device receives the PDCCH channel, if there is a priority flag in the DCI carried by the PDCCH.
  • This priority flag can be used on DCI format 1-2, DCI format 0-1, DCI format 0-2 and DCI format 1-1. Based on this, when the first terminal device receives the PDCCH containing the priority flag, if there is a side link signal from the second terminal device, the first terminal device can directly ignore the reception of the side link signal , that is, preferentially receive any downlink channel pointed to by the priority flag in the PDCCH.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a third terminal device 120 (or referred to as a communication terminal, a terminal).
  • a third terminal device 120 or referred to as a communication terminal, a terminal.
  • the communication system 100 also includes at least one third terminal device 120 located within the coverage of the network device 110 .
  • the communication system 100 further includes a fourth terminal device 130, and D2D communication, M2M communication, MTC, or V2V communication can be performed between the third terminal device 120 and the fourth terminal device 130.
  • FIG. 1 exemplarily shows a communication system 100
  • the communication system 110 includes a network device 110 , a third terminal device 120 and a fourth terminal device 130 .
  • the third terminal device 120 and the network device 110 may be connected wirelessly or by wire.
  • the third terminal device 120 may send the uplink signal to the network device 110 through the uplink, and the third terminal device 120 may also receive the downlink signal sent by the network device 110 through the downlink.
  • the third terminal device 120 may send the side link signal to the fourth terminal device 130 through the side link, and the third terminal device 120 may also receive the side link signal sent by the fourth terminal device 130 through the side link.
  • the third terminal device 120 in this embodiment of the present application may be the same terminal device as the first terminal device or the second terminal device in the above-mentioned embodiments.
  • the third terminal device may also be different from the first terminal device and The terminal device of the second terminal device.
  • the fourth terminal device 130 may be the same terminal device as the first terminal device or the second terminal device in the above-mentioned embodiment.
  • the fourth terminal device 130 may also be different from the first terminal device and the second terminal device. device's terminal device.
  • Fig. 3 is a kind of signal receiving method that the embodiment of the present application provides, is applied to above-mentioned example communication system, this method comprises:
  • a third terminal device generates an uplink signal to be sent.
  • the third terminal device can directly send the The network device sends the uplink signal.
  • the third terminal device can determine the time-frequency domain resource for sending the uplink signal. If there is no side link signal to be sent to other terminal equipment on the time-frequency domain resource, which means that there is no signal transmission conflict, then the third terminal equipment does not need to judge whether the uplink signal satisfies the preset condition, but It is to send the uplink signal directly to the network device.
  • the other terminal equipment may be a device that establishes a side link connection with the third terminal equipment, for example, other terminal equipment may perform D2D communication, M2M communication, MTC, Or V2V communication, etc.
  • the other terminal device may be the fourth terminal device in this embodiment of the present application.
  • the third terminal device generates a side link signal to be sent.
  • the third terminal device may send the side link signal to the fourth terminal device through the side link connection established with the fourth terminal device.
  • D2D communication, M2M communication, MTC, or V2V communication, etc. may be performed between the third terminal device and the fourth terminal device through a lateral link connection.
  • the third terminal device preferentially sends an uplink signal that meets a preset condition.
  • the third terminal device can detect whether the uplink signal satisfies the preset condition, if the uplink signal If the preset condition is met, the third terminal device preferentially sends the uplink signal that meets the preset condition.
  • the third terminal device may send the uplink signal to the network device. That is, if there is a side link signal to be sent to the fourth terminal device that overlaps with the uplink signal that meets the preset condition, the third terminal device preferentially sends the uplink signal that meets the preset condition.
  • the third terminal device can send the uplink signal to the network device. That is to say, if there is a side link signal to be sent to the fourth terminal device that overlaps with the uplink signal that meets the preset condition, and the third terminal device does not have the ability to send the uplink signal and the side link signal in the same time period capability, then the third terminal device can preferentially send the uplink signal.
  • the third terminal device can detect whether the third terminal device is capable of sending uplink signals and side link signals at the same time, and if the third terminal device is capable of simultaneously sending uplink signals and side link signals, then the third terminal device The device does not need to detect whether the uplink signal to be sent to the network device meets the preset conditions, nor does it need to detect whether there is a side link signal to be sent to the fourth terminal device, nor does it need to detect the side link signal to be sent to the fourth terminal device. Whether the channel signal and the uplink signal to be sent to the network device overlap, the uplink signal is directly sent to the network device and/or the side link signal is sent to the fourth terminal device.
  • the third terminal device when detecting that there is a side link signal to be sent to the fourth terminal device , it will also detect whether there is an uplink signal to be sent to the network device that meets the preset conditions, and if there is an uplink signal to be sent to the network device that meets the preset conditions, the third terminal device sends the uplink signal preferentially; For the uplink signal to be sent to the network device that meets the preset condition, the third terminal device may send the above-mentioned side link signal.
  • the third terminal device detects that there is an uplink signal to be sent to the network device that meets the preset conditions, then regardless of whether there is a side link signal to be sent to the fourth terminal device, the The three terminal devices will preferentially send uplink signals that meet the preset conditions to the network device.
  • the overlapping of the uplink signal to be sent that meets the preset condition and the side link signal can be understood as: the uplink signal to be sent that meets the preset condition and the side link signal to be sent are in the time domain or the uplink signal to be sent that meets the preset condition and the side link signal to be sent overlap in the frequency domain, or the uplink signal to be sent that meets the preset condition and the side link signal to be sent are in the frequency domain. overlap in the time-frequency domain.
  • the uplink signal and the side link signal overlap in the time-frequency domain, that is, the uplink signal and the side link signal overlap not only in the time domain, but also in the frequency domain.
  • the uplink signal satisfying the preset condition may include message A, where message A is the first message sent by the third terminal device to the network device in the 2-step random access process.
  • the foregoing message A may include a preamble and a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). That is, the message A can consist of two parts, one part is the preamble and the other part is the PUSCH.
  • PUSCH Physical Uplink Shared Channel
  • the terminal device includes corresponding hardware structures and/or software modules for executing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the terminal device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated units can be implemented in the form of hardware, and can also be implemented in the form of software program modules. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
  • Fig. 4 shows a possible functional unit composition block diagram of the terminal equipment involved in the above-mentioned embodiment, and the terminal equipment includes:
  • the communication unit 401 is configured to preferentially receive downlink signals from network devices that meet preset conditions.
  • the processing unit 402 may be a processor or a controller, and the communication unit 401 may be a transceiver, a transceiver circuit, a radio frequency chip, or the like.
  • the communication unit 401 preferentially receives downlink signals from network devices that meet preset conditions, including:
  • the downlink signal from the network device is received.
  • the downlink signal and the side link signal overlap in the time domain, or the downlink signal and the side link signal overlap in the frequency domain, or the downlink signal and the side link signal overlap in the frequency domain.
  • the side link signals overlap in the time-frequency domain.
  • the communication unit 401 preferentially receives downlink signals that meet preset conditions from network equipment, including:
  • the terminal device If there is a side link signal from the second terminal device, and the terminal device does not have the ability to receive the downlink signal and the side link signal in the same time period, receive all the signals from the network device. the downlink signal.
  • the downlink signal satisfying the preset condition includes an MIB message.
  • the downlink signal satisfying the preset condition includes PDCCH.
  • the downlink signal satisfying the preset condition includes: a PDSCH indicated by a PDCCH scrambled by RNTI.
  • the PDSCH is a channel indicated by a PDCCH scrambled by SI-RNTI
  • a search space of the PDCCH is a search space for other system messages
  • the PDSCH carries other system messages.
  • the PDSCH is a channel indicated by a PDCCH scrambled by SI-RNTI, and the PDSCH carries a system information block SIB1.
  • the PDSCH is a channel indicated by a PDCCH scrambled by P-RNTI
  • a search space of the PDCCH is a search space for a paging message
  • the PDSCH carries a paging message.
  • the paging message includes a short message for system message update.
  • the PDSCH is a channel indicated by a PDCCH scrambled by RA-RNTI
  • the PDSCH carries a second message
  • the second message comes from the The message of the network device
  • the second message is generated by the network device after receiving the first message sent from the terminal device
  • the first message is a preamble.
  • the PDSCH is a channel indicated by a PDCCH scrambled by TEMP-RNTI or C-RNTI
  • the PDSCH carries a fourth message
  • the fourth message is a 4-step random access procedure message from the network device
  • the fourth message is generated when the network device receives the third message from the terminal device
  • the third message is the to the second message from the network device.
  • the PDSCH is a channel indicated by the PDCCH scrambled by MSGB-RNTI
  • the PDSCH carries a message B
  • the message B is a message from the network device in the 2-step random access process
  • the message B is generated by the network device after receiving the message A from the terminal device.
  • the fourth message includes downlink CCCH and/or downlink DCCH
  • the message B includes downlink CCCH and/or downlink DCCH.
  • the fourth message in the case that the fourth message includes a downlink CCCH, the fourth message includes an RRC Setup message and an RRC Reject message; in the case that the message B includes a downlink CCCH, the Message B includes the RRC Setup message and the RRC Reject message.
  • the fourth message in the case that the fourth message includes a downlink DCCH, the fourth message includes an RRC Resume message and an RRC Restablishment message; in a case that the message B includes a downlink DCCH, the Message B includes the RRC Resume message and the RRC Restablishment message.
  • the downlink signal satisfying the preset condition includes: the PDSCH indicated by the priority indication information in the DCI, and the DCI is carried on the PDCCH.
  • the terminal device involved in this embodiment of the present application may be the terminal device shown in FIG. 5 .
  • Embodiments of the present application further provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method as described in the first method in the foregoing method embodiment. Some or all of the steps described by a terminal device.
  • Embodiments of the present application further provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method embodiments described above. Some or all of the steps described in the first terminal device.
  • the computer program product may be a software installation package.
  • Fig. 4 shows a possible functional unit composition block diagram of the terminal equipment involved in the above-mentioned embodiment, and the terminal equipment includes:
  • the communication unit 401 is configured to preferentially send downlink signals that meet preset conditions.
  • the processing unit 402 may be a processor or a controller, and the communication unit 401 may be a transceiver, a transceiver circuit, a radio frequency chip, or the like.
  • the communication unit 401 preferentially sends uplink signals that meet preset conditions, including:
  • the uplink signal to be sent that meets the preset condition and the side link signal overlap the uplink signal is sent to the network device.
  • the communication unit 401 preferentially sends uplink signals that meet preset conditions, including:
  • the network device Send the uplink signal.
  • the uplink signal and the side link signal overlap in the time domain, or the uplink signal and the side link signal overlap in the frequency domain, or the uplink signal and the side link signal overlap in the frequency domain.
  • the side link signals overlap in the time-frequency domain.
  • the uplink signal satisfying the preset condition includes a message A, and the message A is the first message sent by the communication unit 401 to the network device in the 2-step random access process.
  • the message A includes a preamble and a PUSCH.
  • the terminal device involved in this embodiment of the present application may be the terminal device shown in FIG. 5 .
  • Embodiments of the present application further provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method as described in the first method in the foregoing method embodiment. Part or all of the steps described by the three terminal equipment.
  • Embodiments of the present application further provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method embodiments described above. Some or all of the steps described in the third terminal device.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (Random Access Memory, RAM), flash memory, read only memory (Read Only Memory, ROM), erasable programmable read only memory ( Erasable Programmable ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may reside in access network equipment, target network equipment or core network equipment.
  • the processor and the storage medium may also exist in the access network device, the target network device or the core network device as discrete components.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center by wire (eg coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, Digital Video Disc (DVD)), or semiconductor media (eg, Solid State Disk (SSD)) )Wait.

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Abstract

本申请实施例公开了信号接收方法、信号发送方法、终端设备及存储介质，包括：第一终端设备优先接收来自网络设备的满足预设条件的下行信号。本申请实施例可在信号接收冲突时，优先接收来自网络设备的满足预设条件的下行信号，提高信号处理效率。

Description

信号接收方法、信号发送方法、终端设备及存储介质 技术领域
本发明涉及通信技术领域，尤其涉及信号接收方法、信号发送方法、终端设备及存储介质。
背景技术
在通信***中，终端设备可以通过下行链路接收网络设备发送的下行信号，终端设备也可以通过上行链路向网络设备发送上行信号。另外，终端设备还可以通过侧向链路与其他终端设备之间进行通信，即终端设备可以通过侧向链路接收其他终端设备发送的侧向链路信号，终端设备也可以通过侧向链路向其他终端设备发送侧向链路信号。
如果终端设备接收信号的能力有限，例如该终端设备无法在同一时间段接收下行信号和侧向链路信号，也就是说终端设备在接收下行信号和侧向链路信号时发生冲突，那么终端设备如何解决该冲突是目前亟需解决的技术问题。
发明内容
本发明实施例提供信号接收方法、信号发送方法、终端设备及存储介质，可在信号接收冲突时，优先接收来自网络设备的满足预设条件的下行信号，提高信号处理效率。
第一方面，本申请实施例提供一种信号接收方法，包括：
第一终端设备优先接收来自网络设备的满足预设条件的下行信号。
第二方面，本申请实施例提供一种信号发送方法，包括：
第三终端设备优先发送满足预设条件的上行信号。
第三方面，本申请实施例提供一种终端设备，该终端设备具有实现上述信号接收方法的功能。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。
第四方面，本申请实施例提供一种终端设备，该终端设备包括处理器，所述处理器与所述存储器耦合，其中：
所述存储器，用于存储指令；
所述处理器，用于优先接收来自网络设备的满足预设条件的下行信号。
第五方面，本申请实施例提供一种终端设备，该终端设备具有实现上述信号发送方法的功能。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。
第六方面，本申请实施例提供一种终端设备，该终端设备包括处理器，所述处理器与所述存储器耦合，其中：
所述存储器，用于存储指令；
所述处理器，用于优先发送满足预设条件的上行信号。
第七方面，本申请实施例提供了一种计算机存储介质，其中，所述计算机可读存储介质存储有计算机程序或指令，当所述程序或指令被处理器执行时，使所述处理器执行如第一方面所述的信号接收方法。
第八方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本申请实施例第一方面所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第九方面，本申请实施例提供了一种计算机存储介质，其中，所述计算机可读存储介质存储有计算机程序或指令，当所述程序或指令被处理器执行时，使所述处理器执行如第二方面所述的信号发送方法。
第十方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本申请实施例第二方面所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以看出，在信号接收冲突时，第一终端设备可以优先接收来自网络设备的满足预设条件的下行信号，以便及时响应该下行信号，可提高信号处理效率。在信号发送冲突时，第三终端设备可以优先发送满足预设条件的上行 信号，以便该上行信号的接收端可以及时响应该上行信号，可提高信号处理效率。
附图说明
下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本申请实施例提供的一种通信***的***架构图；
图2是本申请实施例提供的一种信号接收方法示例图；
图3是本申请实施例提供的一种信号发送方法示例图；
图4是本申请实施例提供的一种终端设备的结构示意图；
图5是本申请实施例提供的另一种终端设备的结构示意图。
具体实施方式
下面将结合附图对本申请实施例中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信***，例如：长期演进(Long Term Evolution，LTE)***、LTE频分双工(Frequency Division Duplex，FDD)***、LTE时分双工(Time Division Duplex，TDD)***、先进的长期演进(Advanced long term evolution，LTE-A)***、新无线(New Radio，NR)***、NR***的演进***、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)***、NR-U***、MIMO***、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信***或其他通信***等。
通常来说，传统的通信***支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信***将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信***。
示例性的，本申请实施例应用的通信***100可以如图1所示。该通信***100可以包括网络设备110，网络设备110可以是与第一终端设备120(或称 为通信终端、终端)通信的设备。
该通信***100还包括位于网络设备110覆盖范围内的至少一个第一终端设备120。
该通信***100还包括第二终端设备130，第一终端设备120和第二终端设备130之间可以进行D2D通信，M2M通信，MTC，或者V2V通信等。
图1示例性地示出了通信***100，该通信***110中包括一个网络设备110、第一终端设备120和第二终端设备130。第一终端设备120与网络设备110可以通过无线或者有线连接。其中，第一终端设备120可以通过下行链路接收网络设备110发送的下行信号，第一终端设备120也可以通过上行链路向网络设备110发送上行信号。第一终端设备120可以通过侧向链路接收第二终端设备130发送的侧向链路信号，第一终端设备120也可以通过侧向链路向第二终端设备130发送侧向链路信号。
在本申请实施例中，网络设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备可以是LTE***中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的通信***中的网络设备等。
在本申请实施例中，终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信***(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位***(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、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、计算设备或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网络中的终端设备或者未来演进的通信***中的终端设备等。
可选地，5G***或5G网络还可以称为新无线(New Radio，NR)***或NR网络。
可选地，该通信***100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括一个或多个终端设备，本申请实施例对此不做限定。
可选地，该通信***100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
传统的通信***中，如果终端设备在接收下行信号和侧向链路信号时发生冲突，那么终端设备如何解决该冲突是目前亟需解决的技术问题。
针对上述问题，本申请实施例提出以下实施例。
请参阅图2，图2是本申请实施例提供的一种信号接收方法，应用于上述示例通信***，该方法包括：
S201，网络设备向第一终端设备发送下行信号。
在一种实现方式中，若在第一终端设备接收来自网络设备的下行信号的时频域资源上，不存在来自其他终端设备的侧向链路信号，那么第一终端设备可以直接接收来自网络设备的下行信号。换句话说，如果网络设备向第一终端设备发送下行信号，那么第一终端设备可以确定接收该下行信号的时频域资源。如果在该时频域资源上，不存在来自其他终端设备的侧向链路信号，也就表示不存在信号接收冲突，那么第一终端设备无需判断该下行信号是否满足预设条件，而是直接接收该下行信号。其中，其他终端设备可以为与第一终端设备之间建立侧向链路连接的设备，例如其他终端设备可以和第一终 端设备之间通过侧向链路连接进行D2D通信，M2M通信，MTC，或者V2V通信等。示例性的，其他终端设备可以为本申请实施例中的第二终端设备。
S202，第二终端设备向第一终端设备发送侧向链路信号。
第二终端设备可以通过与第一终端设备之间建立的侧向链路连接，向第一终端设备发送侧向链路信号。示例性的，第二终端设备可以和第一终端设备之间通过侧向链路连接进行D2D通信，M2M通信，MTC，或者V2V通信等。
S203，第一终端设备优先接收来自网络设备的满足预设条件的下行信号。
举例来说，若网络设备向第一终端设备发送下行信号，第二终端设备向第一终端设备发送侧向链路信号，第一终端设备可以检测该下行信号是否满足预设条件，如果该下行信号满足预设条件，则第一终端设备优先接收下行信号。
在一种实现方式中，若存在和下行信号重叠的来自第二终端设备的侧向链路信号，则第一终端设备接收来自网络设备的满足预设条件的下行信号。也就是说，如果存在和下行信号重叠的来自第二终端设备的侧向链路信号，那么第一终端设备优先接收来自网络设备的满足预设条件的下行信号。
其中，和下行信号重叠的来自第二终端设备的侧向链路信号可以理解为：下行信号和侧向链路信号在时域上重叠，或者下行信号和侧向链路信号在频域上重叠，或者下行信号和侧向链路信号在时频域上重叠。下行信号和侧向链路信号在时频域上重叠，即下行信号和侧向链路信号不仅在时域上重叠，还在频域上重叠。
在一种实现方式中，若存在来自第二终端设备的侧向链路信号，且第一终端设备不具备在同一时间段接收下行信号和侧向链路信号的能力，则第一终端设备接收来自网络设备的下行信号。也就是说，如果存在来自第二终端设备的侧向链路信号，且第一终端设备不具备在同一时间段接收下行信号和侧向链路信号的能力，那么第一终端设备优先接收来自网络设备的下行信号。
举例来说，第一终端设备可以检测第一终端设备是否有能力同时接收下行信号和侧向链路信号，如果第一终端设备有能力同时接收下行信号和侧向链路信号，那么第一终端设备无需检测来自网络设备的下行信号是否满足预设条件，也无需检测是否存在来自第二终端设备的侧向链路信号，更无需检 测来自第二终端设备的侧向链路信号和来自第一终端设备的下行信号是否重叠，而是直接接收来自网络设备的下行信号和/或来自第二终端设备的侧向链路信号。
如果第一终端设备的能力有限，例如第一终端设备没有能力同时接收下行信号和侧向链路信号，那么第一终端设备在检测到存在来自第二终端设备的侧向链路信号时，还会检测是否存在来自网络设备的满足预设条件的下行信号，如果存在来自网络设备的满足预设条件的下行信号，则第一终端设备优先接收来自网络设备的满足预设条件的下行信号；如果不存在来自网络设备的满足预设条件的下行信号，则第一终端设备可以接收来自第二终端设备的侧向链路信号。如果第一终端设备的能力有限，且第一终端设备检测到存在来自网络设备的满足预设条件的下行信号，那么无论是否存在来自第二终端设备的侧向链路信号，第一终端设备都会优先接收来自网络设备的满足预设条件的下行信号。
在本申请实施例中，第一终端设备优先接收来自网络设备的满足预设条件的下行信号，以便及时响应该下行信号，可提高信号处理效率。
基于图2所示的信号接收方法的流程示意图，本申请实施例对满足预设条件的下行信号进行具体描述。
满足预设条件的下行信号可以包括主***模块(Master Information Block，MIB)消息。
在该实施例中，第一终端设备在和某个小区之间进行时间和频率同步的时候，就需要获取同步信号和PBCH块(Synchronization Signal and PBCH block，SSB)。SSB可以包括同步信道和MIB消息。在第一终端设备获取了MIB消息以后，第一终端设备就可以确定MIB在上述小区的时频域位置和重复的规律。因此，第一终端设备对MIB消息的接收时延的需求较高，即第一终端设备接收MIB消息的接收时延越小，那么第一终端设备和上述上述小区进行时间和频率的同步的效率就越高，也就是说，第一终端设备尽快获取MIB消息，就可以尽快和上述小区进行时间和频率的同步。示例性的，第一终端设备可以获取***信息块(System Information Block，SIB)1，SIB1可以包括指示网络设备实 际发送的SSB的信息。第一终端设备根据该信息可以确定MIB消息的具体时频域的位置。
在该实施例中，第一终端设备在确定的MIB消息的时频域位置接收MIB消息的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收MIB消息。
基于图2所示的信号接收方法的流程示意图，本申请实施例对满足预设条件的下行信号进行具体描述。
满足预设条件的下行信号可以包括物理下行控制信道(Physical Downlink Control Channel，PDCCH)。
在该实施例中，PDCCH是除了MIB和预配置资源的共享信道之外，接收其他信道的时候的伴随控制信道，也就是说，第一终端设备必须在接收PDCCH信道之后，才能进一步解码PDCCH，确定PDCCH所指向的其他信道，进而接收来自网络设备的其他信道。示例性的，其他信道可以为物理下行共享信道(Physical Downlink Shared Channel，PDSCH)。
在该实施例中，第一终端设备在尝试接收PDCCH的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收PDCCH。
基于图2所示的信号接收方法的流程示意图，本申请实施例对满足预设条件的下行信号进行具体描述。
满足预设条件的下行信号可以包括：通过无线网络临时标识(Radio Network Tempory Identity，RNTI)加扰的PDCCH所指示的PDSCH。
在一种实现方式中，PDSCH可以为通过***信息-无线网络临时标识SI-RNTI加扰的PDCCH所指示的信道，PDSCH承载SIB1。
在该实施例中，第一终端设备在初始接入的时候，可以通过MIB来获取接收SIB1所需要的PDCCH配置信息。在切换的时候，第一终端设备也可以通过专用信道获取接收SIB1所需要的PDCCH配置信息。在获取了接收SIB1所需要的PDCCH配置信息之后，第一终端设备可以尝试在PDCCH配置信息对应的 PDCCH上接收卷积了SI-RNTI的SIB1消息。基于此，当第一终端设备在接收SIB1消息的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收SIB1。
在一种实现方式中，PDSCH可以为通过SI-RNTI加扰的PDCCH所指示的信道，该PDCCH的搜索空间为用于其他***消息的搜索空间，上述PDSCH承载其他***消息。
在该实施例中，PDCCH配置信息可以包括用于其他***消息的搜索空间。第一终端设备在通过SIB1或者专用信令确定用于其他***消息的搜索空间以后，可以在用于其他***消息的搜索空间的PDCCH上，接收卷积了SI-RNTI的***消息。基于此，当第一终端设备在接收其他***消息的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收其他***消息。
在一种实现方式中，PDSCH可以为通过寻呼-无线网络临时标识P-RNTI加扰的PDCCH所指示的信道，该PDCCH的搜索空间为用于寻呼消息的搜索空间，上述PDSCH承载寻呼消息。
其中，所述寻呼消息可以包括用于***消息更新的短消息。
在该实施例中，PDCCH配置信息可以包括用于寻呼消息的搜索空间。第一终端设备在通过SIB1或者专用信令确定用于其他***消息的搜索空间以后，可以在用于寻呼消息的搜索空间的PDCCH上，接收卷积了P-RNTI的***消息。基于此，当第一终端设备在接收寻呼消息的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收寻呼消息。
在一种实现方式中，PDSCH可以为通过随机存取-无线网络临时标识RA-RNTI加扰的PDCCH所指示的信道，该PDSCH承载第二个消息，第二个消息为4步随机接入过程中来自网络设备的消息，第二个消息是网络设备在接收到来自第一终端设备发送的第一个消息所生成的，第一个消息可以为前导码(preamble)。
在该实施例中，在第一终端设备发起4步随机接入的时候，第一终端设备在发送了前导码(即第一个消息)以后，就会等待来自网络设备的第二个 消息，发送第二个消息的PDCCH上会卷积RA-RNTI，而且第一终端设备确定在哪个时间段(即第二个消息的接收窗口)接收第二个消息。基于此，当第一终端设备在接收第二个消息的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收第二个消息。
在一种实现方式中，PDSCH可以为通过临时-无线网络临时标识TEMP-RNTI或者小区-无线网络临时标识C-RNTI加扰的PDCCH所指示的信道，其中PDSCH承载第四个消息，所述第四个消息为4步随机接入过程中来自所述网络设备的消息，所述第四个消息是所述网络设备在接收到来自所述第一终端设备的第三个消息所生成的，所述第三个消息是所述第一终端设备在接收到来自所述网络设备的第二个消息所生成的。第二个消息是网络设备在接收到来自第一终端设备发送的第一个消息所生成的，第一个消息可以为前导码。
在该实施例中，在第一终端设备向网络设备发送了第三个消息以后，根据随机接入信道(Random Access Channel，RACH)过程实际发起的原因不同，第一终端设备在接收第四个消息的时候，会尝试接收卷积了TEMP-RNTI或者C-RNTI的PDCCH。基于此，当第一终端设备在接收第四个消息的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收第四个消息。
可选的，第四个消息可以包括下行公共控制信道(Common Control Channel，CCCH)和/或下行专用控制信道(DedicatedControlCHannel，DCCH)。
可选的，在所述第四个消息包括下行CCCH的情况下，所述第四个消息可以包括无线资源控制(Radio Resource Control，RRC)连接建立Setup消息和无线资源控制连接断开RRC Reject消息。
可选的，在所述第四个消息包括下行DCCH的情况下，所述第四个消息可以包括无线资源控制连接恢复RRC Resume消息和无线资源控制连接重建RRC Restablishment消息。
换句话说，在上述RACH过程中的第四个消息中可能会包含下行CCCH，也可能会包含下行DCCH。如果第四个消息包含了DCCH，那么第四个消息 可能会包含RRCResume消息和RRCRestablishment消息。如果第四个消息包含了CCCH，那么第四个消息可能会包含RRC Setup消息和RRC Reject消息。
在一种实现方式中，PDSCH可以为通过消息B-无线网络临时标识MSGB-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载消息B，所述消息B为2步随机接入过程中来自所述网络设备的消息，所述消息B是所述网络设备在接收到来自所述第一终端设备的消息A所生成的。
在该实施例中，在第一终端设备发起2步随机接入的时候，第一终端设备首先会发送消息A，然后在接收窗口准备接收来自网络设备的消息B。网络设备发送消息B的PDCCH上卷积了MSGB-RNTI。基于此，当第一终端设备在接收消息B的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收消息B。其中，消息A为2步随机接入过程中的第一个消息，消息B为2步随机接入过程中的第二个消息。
可选的，消息B可以包括下行CCCH和/或下行DCCH。
可选的，在所述消息B包括下行CCCH的情况下，所述消息B可以包括RRC Setup消息和RRC Reject消息。
可选的，在所述消息B包括下行DCCH的情况下，所述消息B可以包括RRC Resume消息和RRC Restablishment消息。
换句话说，在上述RACH过程中的消息B中可能会包含下行CCCH，也可能会包含下行DCCH。如果消息B包含了DCCH，那么消息B可能会包含RRCResume消息和RRCRestablishment消息。如果消息B包含了CCCH，那么消息B可能会包含RRC Setup消息和RRC Reject消息。
基于图2所示的信号接收方法的流程示意图，本申请实施例对满足预设条件的下行信号进行具体描述。
满足预设条件的下行信号可以包括：下行控制信息(Downlink Control Information，DCI)中的优先级指示信息所指示的PDSCH，所述DCI承载在PDCCH上。
在该实施例中，第一终端设备在接收到PDCCH信道的时候，如果PDCCH所承载DCI中有一个优先级标记。这个优先级标记可以用在DCI格式1-2，DCI 格式0-1，DCI格式0-2和DCI格式1-1上。基于此，当第一终端设备在接收到包含了优先级标记的PDCCH的时候，如果有来自第二终端设备的侧向链路信号，第一终端设备可以直接忽略该侧向链路信号的接收，即优先接收PDCCH中优先级标记所指向的任何下行信道。
示例性的，本申请实施例应用的通信***100可以如图1所示。该通信***100可以包括网络设备110，网络设备110可以是与第三终端设备120(或称为通信终端、终端)通信的设备。
该通信***100还包括位于网络设备110覆盖范围内的至少一个第三终端设备120。
该通信***100还包括第四终端设备130，第三终端设备120和第四终端设备130之间可以进行D2D通信，M2M通信，MTC，或者V2V通信等。
图1示例性地示出了通信***100，该通信***110中包括一个网络设备110、第三终端设备120和第四终端设备130。第三终端设备120与网络设备110可以通过无线或者有线连接。其中，第三终端设备120可以通过上行链路向网络设备110发送上行信号，第三终端设备120也可以通过下行链路接收网络设备110发送的下行信号。第三终端设备120可以通过侧向链路向第四终端设备130发送侧向链路信号，第三终端设备120也可以通过侧向链路接收第四终端设备130发送的侧向链路信号。
本申请实施例中的第三终端设备120可以和上述实施例中的第一终端设备或者第二终端设备为同一终端设备，可选的，第三终端设备也可以为不同于第一终端设备以及第二终端设备的终端设备。另外，第四终端设备130可以和上述实施例中的第一终端设备或者第二终端设备为同一终端设备，可选的，第四终端设备130也可以为不同于第一终端设备以及第二终端设备的终端设备。
传统的通信***中，如果终端设备在发送上行信号和侧向链路信号时发生冲突，那么终端设备如何解决该冲突是目前亟需解决的技术问题。
针对上述问题，本申请实施例提出以下实施例。
请参阅图3，图3是本申请实施例提供的一种信号接收方法，应用于上述 示例通信***，该方法包括：
S301，第三终端设备生成待发送的上行信号。
在一种实现方式中，若在第三终端设备向网络设备发送的上行信号的时频域资源上，不存在待发送至其他终端设备的侧向链路信号，那么第三终端设备可以直接向网络设备发送该上行信号。换句话说，如果第三终端设备生成待发送的上行信号，那么第三终端设备可以确定发送该上行信号的时频域资源。如果在该时频域资源上，不存在待发送至其他终端设备的侧向链路信号，也就表示不存在信号发送冲突，那么第三终端设备无需判断该上行信号是否满足预设条件，而是直接向网络设备发送该上行信号。其中，其他终端设备可以为与第三终端设备之间建立侧向链路连接的设备，例如其他终端设备可以和第三终端设备之间通过侧向链路连接进行D2D通信，M2M通信，MTC，或者V2V通信等。示例性的，其他终端设备可以为本申请实施例中的第四终端设备。
S302，第三终端设备生成待发送的侧向链路信号。
第三终端设备可以通过与第四终端设备之间建立的侧向链路连接，向第四终端设备发送侧向链路信号。示例性的，第三终端设备可以和第四终端设备之间通过侧向链路连接进行D2D通信，M2M通信，MTC，或者V2V通信等。
S303，第三终端设备优先发送满足预设条件的上行信号。
举例来说，若存在待发送至网络设备的上行信号，以及待发送至第四终端设备的侧向链路信号，那么第三终端设备可以检测该上行信号是否满足预设条件，如果该上行信号满足预设条件，则第三终端设备优先发送满足预设条件的上行信号。
在一种实现方式中，若待发送的满足预设条件的上行信号和待发送的侧向链路信号重叠，则第三终端设备可以向网络设备发送该上行信号。也就是说，如果存在和满足预设条件的上行信号重叠的待发送至第四终端设备的侧向链路信号，那么第三终端设备优先发送满足预设条件的上行信号。
在一种实现方式中，若待发送的满足预设条件的上行信号和待发送的侧向链路信号重叠，且第三终端设备不具备在同一时间段发送上行信号和侧向链路信号的能力，则第三终端设备可以向网络设备发送该上行信号。也就是 说，如果存在和满足预设条件的上行信号重叠的待发送至第四终端设备的侧向链路信号，且第三终端设备不具备在同一时间段发送上行信号和侧向链路信号的能力，那么第三终端设备可以优先发送该上行信号。
举例来说，第三终端设备可以检测第三终端设备是否有能力同时发送上行信号和侧向链路信号，如果第三终端设备有能力同时发送上行信号和侧向链路信号，那么第三终端设备无需检测待发送至网络设备的上行信号是否满足预设条件，也无需检测是否存在待发送至第四终端设备的侧向链路信号，更无需检测待发送至第四终端设备的侧向链路信号和待发送至网络设备的上行信号是否重叠，而是直接向网络设备发送上行信号和/或向第四终端设备发送侧向链路信号。
如果第三终端设备的能力有限，例如第三终端设备没有能力同时发送上行信号和侧向链路信号，那么第三终端设备在检测到存在待发送至第四终端设备的侧向链路信号时，还会检测是否存在待发送至网络设备的满足预设条件的上行信号，如果存在待发送至网络设备的满足预设条件的上行信号，则第三终端设备优先发送该上行信号；如果不存在待发送至网络设备的满足预设条件的上行信号，则第三终端设备可以发送上述侧向链路信号。如果第三终端设备的能力有限，且第三终端设备检测到存在待发送至网络设备的满足预设条件的上行信号，那么无论是否存在待发送至第四终端设备的侧向链路信号，第三终端设备都会优先向网络设备发送满足预设条件的上行信号。
在一种实现方式中，待发送的满足预设条件的上行信号和侧向链路信号重叠可以理解为：待发送的满足预设条件的上行信号和待发送的侧向链路信号在时域上重叠，或者待发送的满足预设条件的上行信号和待发送的侧向链路信号在频域上重叠，或者待发送的满足预设条件的上行信号和待发送的侧向链路信号在时频域上重叠。上行信号和侧向链路信号在时频域上重叠，即上行信号和侧向链路信号不仅在时域上重叠，还在频域上重叠。
在一种实现方式中，满足预设条件的上行信号可以包括消息A，其中消息A为2步随机接入过程中第三终端设备向网络设备发送的第一个消息。
在一种实现方式中，上述消息A可以包括前导码和物理上行共享信道(PhysicalUplinkSharedChannel，PUSCH)。也就是说，该消息A可以由两部分 组成，一部分是前导码，另一部分是PUSCH。
上述主要从各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，终端设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，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，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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。
本申请实施例可以根据上述方法示例对终端设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，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。
在采用集成的单元的情况下，图4示出了上述实施例中所涉及的终端设备的一种可能的功能单元组成框图，终端设备包括:
通信单元401，用于优先接收来自网络设备的满足预设条件的下行信号。
其中，处理单元402可以是处理器或控制器，通信单元401可以是收发器、收发电路、射频芯片等。
在一种实现方式中，通信单元401优先接收来自网络设备的满足预设条件的下行信号，包括：
若存在和所述下行信号重叠的来自第二终端设备的侧向链路信号，则接收来自所述网络设备的所述下行信号。
在一种实现方式中，所述下行信号和所述侧向链路信号在时域上重叠，或者所述下行信号和所述侧向链路信号在频域上重叠，或者所述下行信号和所述侧向链路信号在时频域上重叠。
在一种实现方式中，通信单元401优先接收来自网络设备的满足预设条 件的下行信号，包括：
若存在来自第二终端设备的侧向链路信号，且所述终端设备不具备在同一时间段接收所述下行信号和所述侧向链路信号的能力，则接收来自所述网络设备的所述下行信号。
在一种实现方式中，所述满足预设条件的下行信号包括MIB消息。
在一种实现方式中，所述满足预设条件的下行信号包括PDCCH。
在一种实现方式中，所述满足预设条件的下行信号包括：通过RNTI加扰的PDCCH所指示的PDSCH。
在一种实现方式中，所述PDSCH为通过SI-RNTI加扰的PDCCH所指示的信道，所述PDCCH的搜索空间为用于其他***消息的搜索空间，所述PDSCH承载其他***消息。
在一种实现方式中，所述PDSCH为通过SI-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载***信息块SIB1。
在一种实现方式中，所述PDSCH为通过P-RNTI加扰的PDCCH所指示的信道，所述PDCCH的搜索空间为用于寻呼消息的搜索空间，所述PDSCH承载寻呼消息。
在一种实现方式中，所述寻呼消息包括用于***消息更新的短消息。
在一种实现方式中，所述PDSCH为通过RA-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载第二个消息，所述第二个消息为4步随机接入过程中来自所述网络设备的消息，所述第二个消息是所述网络设备在接收到来自所述终端设备发送的第一个消息所生成的，所述第一个消息为前导码。
在一种实现方式中，所述PDSCH为通过TEMP-RNTI或者C-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载第四个消息，所述第四个消息为4步随机接入过程中来自所述网络设备的消息，所述第四个消息是所述网络设备在接收到来自所述终端设备的第三个消息所生成的，所述第三个消息是所述终端设备在接收到来自所述网络设备的第二个消息所生成的。
在一种实现方式中，所述PDSCH为通过MSGB-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载消息B，所述消息B为2步随机接入过程中来自所述网络设备的消息，所述消息B是所述网络设备在接收到来自所述终端 设备的消息A所生成的。
在一种实现方式中，所述第四个消息包括下行CCCH和/或下行DCCH，所述消息B包括下行CCCH和/或下行DCCH。
在一种实现方式中，在所述第四个消息包括下行CCCH的情况下，所述第四个消息包括RRC Setup消息和RRC Reject消息；在所述消息B包括下行CCCH的情况下，所述消息B包括RRC Setup消息和RRC Reject消息。
在一种实现方式中，在所述第四个消息包括下行DCCH的情况下，所述第四个消息包括RRC Resume消息和RRC Restablishment消息；在所述消息B包括下行DCCH的情况下，所述消息B包括RRC Resume消息和RRC Restablishment消息。
在一种实现方式中，所述满足预设条件的下行信号包括：DCI中的优先级指示信息所指示的PDSCH，所述DCI承载在PDCCH上。
当处理单元402为处理器，通信单元401为收发器时，本申请实施例所涉及的终端设备可以为图5所示的终端设备。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中第一终端设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法实施例中第一终端设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
在采用集成的单元的情况下，图4示出了上述实施例中所涉及的终端设备的一种可能的功能单元组成框图，终端设备包括:
通信单元401，用于优先发送满足预设条件的下行信号。
其中，处理单元402可以是处理器或控制器，通信单元401可以是收发器、收发电路、射频芯片等。
在一种实现方式中，通信单元401优先发送满足预设条件的上行信号，包括：
若待发送的满足预设条件的上行信号和侧向链路信号重叠，则向网络设备发送所述上行信号。
在一种实现方式中，通信单元401优先发送满足预设条件的上行信号，包括：
若待发送的满足预设条件的上行信号和侧向链路信号重叠，且所述终端设备不具备在同一时间段发送所述上行信号和所述侧向链路信号的能力，则向网络设备发送所述上行信号。
在一种实现方式中，所述上行信号和所述侧向链路信号在时域上重叠，或者所述上行信号和所述侧向链路信号在频域上重叠，或者所述上行信号和所述侧向链路信号在时频域上重叠。
在一种实现方式中，所述满足预设条件的上行信号包括消息A，所述消息A为2步随机接入过程中通信单元401向网络设备发送的第一个消息。
在一种实现方式中，所述消息A包括前导码和PUSCH。
当处理单元401为处理器，通信单元401为收发器时，本申请实施例所涉及的终端设备可以为图5所示的终端设备。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中第三终端设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法实施例中第三终端设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的 存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备、目标网络设备或核心网设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备、目标网络设备或核心网设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (30)

  1. 一种信号接收方法，其特征在于，包括：
    第一终端设备优先接收来自网络设备的满足预设条件的下行信号。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端设备优先接收来自网络设备的满足预设条件的下行信号，包括：
    若存在和所述下行信号重叠的来自第二终端设备的侧向链路信号，则所述第一终端设备接收来自所述网络设备的所述下行信号。
  3. 根据权利要求2所述的方法，其特征在于，所述下行信号和所述侧向链路信号在时域上重叠，或者所述下行信号和所述侧向链路信号在频域上重叠，或者所述下行信号和所述侧向链路信号在时频域上重叠。
  4. 根据权利要求1所述的方法，其特征在于，所述第一终端设备优先接收来自网络设备的满足预设条件的下行信号，包括：
    若存在来自第二终端设备的侧向链路信号，且所述第一终端设备不具备在同一时间段接收所述下行信号和所述侧向链路信号的能力，则所述第一终端设备接收来自所述网络设备的所述下行信号。
  5. 根据权利要求1所述的方法，其特征在于，所述满足预设条件的下行信号包括主***模块MIB消息。
  6. 根据权利要求1所述的方法，其特征在于，所述满足预设条件的下行信号包括物理下行控制信道PDCCH。
  7. 根据权利要求1所述的方法，其特征在于，所述满足预设条件的下行信号包括：通过无线网络临时标识RNTI加扰的PDCCH所指示的物理下行共享信道PDSCH。
  8. 根据权利要求7所述的方法，其特征在于，所述PDSCH为通过***信息-无线网络临时标识SI-RNTI加扰的PDCCH所指示的信道，所述PDCCH的搜索空间为用于其他***消息的搜索空间，所述PDSCH承载其他***消息。
  9. 根据权利要求7所述的方法，其特征在于，所述PDSCH为通过***信息-无线网络临时标识SI-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载***信息块SIB1。
  10. 根据权利要求7所述的方法，其特征在于，所述PDSCH为通过寻呼-无线网络临时标识P-RNTI加扰的PDCCH所指示的信道，所述PDCCH的搜索空间为用于寻呼消息的搜索空间，所述PDSCH承载寻呼消息。
  11. 根据权利要求10所述的方法，其特征在于，所述寻呼消息包括用于***消息更新的短消息。
  12. 根据权利要求7所述的方法，其特征在于，所述PDSCH为通过随机存取-无线网络临时标识RA-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载第二个消息，所述第二个消息为4步随机接入过程中来自所述网络设备的消息，所述第二个消息是所述网络设备在接收到来自所述第一终端设备发送的第一个消息所生成的，所述第一个消息为前导码。
  13. 根据权利要求7所述的方法，其特征在于，所述PDSCH为通过临时-无线网络临时标识TEMP-RNTI或者小区-无线网络临时标识C-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载第四个消息，所述第四个消息为4步随机接入过程中来自所述网络设备的消息，所述第四个消息是所述网络设备在接收到来自所述第一终端设备的第三个消息所生成的，所述第三个消息是所述第一终端设备在接收到来自所述网络设备的第二个消息所生成的。
  14. 根据权利要求7所述的方法，其特征在于，所述PDSCH为通过 MSGB-RNTI加扰的PDCCH所指示的信道，所述PDSCH承载消息B，所述消息B为2步随机接入过程中来自所述网络设备的消息，所述消息B是所述网络设备在接收到来自所述第一终端设备的消息A所生成的。
  15. 根据权利要求13或14所述的方法，其特征在于，所述第四个消息包括下行公共控制信道CCCH和/或下行专用控制信道DCCH，所述消息B包括下行CCCH和/或下行DCCH。
  16. 根据权利要求15所述的方法，其特征在于，在所述第四个消息包括下行CCCH的情况下，所述第四个消息包括无线资源控制连接建立RRC Setup消息和无线资源控制连接断开RRC Reject消息；在所述消息B包括下行CCCH的情况下，所述消息B包括RRC Setup消息和RRC Reject消息。
  17. 根据权利要求15所述的方法，其特征在于，在所述第四个消息包括下行DCCH的情况下，所述第四个消息包括无线资源控制连接恢复RRC Resume消息和无线资源控制连接重建RRC Restablishment消息；在所述消息B包括下行DCCH的情况下，所述消息B包括RRC Resume消息和RRC Restablishment消息。
  18. 根据权利要求1所述的方法，其特征在于，所述满足预设条件的下行信号包括：下行控制信息DCI中的优先级指示信息所指示的PDSCH，所述DCI承载在PDCCH上。
  19. 一种信号发送方法，其特征在于，包括：
    第三终端设备优先发送满足预设条件的上行信号。
  20. 根据权利要求19所述的方法，其特征在于，所述第三终端设备优先发送满足预设条件的上行信号，包括：
    若待发送的满足预设条件的上行信号和待发送的侧向链路信号重叠，则所 述第三终端设备向网络设备发送所述上行信号。
  21. 根据权利要求19所述的方法，其特征在于，所述第三终端设备优先发送满足预设条件的上行信号，包括：
    若待发送的满足预设条件的上行信号和待发送的侧向链路信号重叠，且所述第三终端设备不具备在同一时间段发送所述上行信号和所述侧向链路信号的能力，则所述第三终端设备向网络设备发送所述上行信号。
  22. 根据权利要求20或21所述的方法，其特征在于，所述上行信号和所述侧向链路信号在时域上重叠，或者所述上行信号和所述侧向链路信号在频域上重叠，或者所述上行信号和所述侧向链路信号在时频域上重叠。
  23. 根据权利要求19所述的方法，其特征在于，所述满足预设条件的上行信号包括消息A，所述消息A为2步随机接入过程中所述第三终端设备向网络设备发送的第一个消息。
  24. 根据权利要求23所述的方法，其特征在于，所述消息A包括前导码和物理上行共享信道PUSCH。
  25. 一种终端设备，其特征在于，所述终端设备包括用于实现如权1-18任一项所述的信号接收方法的单元。
  26. 一种终端设备，其特征在于，所述终端设备包括处理器和存储器，所述处理器与所述存储器耦合，其特征在于，
    所述存储器，用于存储指令；
    所述处理器，用于优先接收来自网络设备的满足预设条件的下行信号。
  27. 一种终端设备，其特征在于，所述终端设备包括用于实现如权19-24任一项所述的信号发送方法的单元。
  28. 一种终端设备，其特征在于，所述终端设备包括处理器和存储器，所述处理器与所述存储器耦合，其特征在于，
    所述存储器，用于存储指令；
    所述处理器，用于优先发送满足预设条件的上行信号。
  29. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有计算机程序或指令，当所述程序或指令被处理器执行时，使所述处理器执行如权利要求1-18任一项所述的信号接收方法。
  30. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有计算机程序或指令，当所述程序或指令被处理器执行时，使所述处理器执行如权利要求19-24任一项所述的信号发送方法。
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