Method, remote terminal and network device for wireless communication

Abstract

A method, a remote terminal and a network device of wireless communication, the method comprising: sending, by the remote terminal, first information, the first information being related to sidelink transmission of the remote terminal. The remote terminal reports information related to sidelink transmission of the remote terminal, so that the network device can configure a suitable signal quality threshold for the remote terminal based on the first information for the remote terminal to select a suitable relay terminal.

Description

Technical Field

[0001] This application relates to the field of communications, specifically to a wireless communication method, a remote terminal, and a network device. Background Technology

[0002] In New Radio (NR) systems, terminal devices with Proximity-based Services (ProSe) capabilities can communicate directly with another ProSe-capable terminal device via the PC5 interface. When a terminal device can connect to an external data network via the 5th Generation (5G) network and also has ProSe capabilities, this terminal device can act as a relay UE. Another ProSe-capable remote UE can establish a direct connection with the relay UE via the PC5 interface and interact with the external network through a Protocol Data Unit (PDU) session established between the relay UE and the 5G network. The remote UE can select a relay UE based on the side-following signal quality threshold configured by the network device. Therefore, how to configure appropriate signal quality thresholds for the network device to enable the remote UE to select a suitable relay UE is a problem that urgently needs to be solved. Summary of the Invention

[0003] This application provides a wireless communication method, a remote terminal, and a network device. The remote terminal reports information related to its side-going transmission to the network device, so that the network device can configure an appropriate side-going signal quality threshold for the remote terminal to select a suitable relay terminal based on the information.

[0004] In a first aspect, a wireless communication method is provided, comprising: a remote terminal transmitting first information, the first information being related to a side-by-side transmission of the remote terminal.

[0005] In a second aspect, a wireless communication method is provided, comprising: a network device receiving first information sent by a remote terminal, the first information being related to the side-by-side transmission of the remote terminal.

[0006] Thirdly, a remote terminal is provided for executing the methods described in the first aspect or its various implementations.

[0007] Specifically, the remote terminal includes a functional module for performing the methods described in the first aspect or its various implementations.

[0008] Fourthly, a network device is provided for performing the methods described in the second aspect or its various implementations.

[0009] Specifically, the network device includes a functional module for performing the methods described in the second aspect or its various implementations.

[0010] Fifthly, a remote terminal is provided, including a processor and a memory. The memory is used to store computer programs, and the processor is used to call and run the computer programs stored in the memory to perform the methods described in the first aspect or its various implementations.

[0011] In a sixth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the methods in the second aspect or its implementations described above.

[0012] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations.

[0013] Specifically, the chip includes a processor for calling and running a computer program from memory, causing a device equipped with the device to perform the method as described in any of the first to second aspects above or in their respective implementations.

[0014] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0015] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0016] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0017] Through the above technical solution, the remote terminal reports information related to its side-going transmission to the network device, so that the network device can configure an appropriate side-going signal quality threshold for the remote terminal to select a suitable relay terminal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a communication system architecture used in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of another communication system architecture applied in the embodiments of this application.

[0020] Figure 3 This is a schematic diagram illustrating the establishment of a connection between a remote terminal and a relay terminal.

[0021] Figure 4 This is a schematic diagram of a relay discovery process according to an embodiment of this application.

[0022] Figure 5 This is a schematic diagram of another relay discovery process according to an embodiment of this application.

[0023] Figure 6 This is a schematic interactive diagram of a wireless communication method provided in an embodiment of this application.

[0024] Figure 7 This is a schematic block diagram of a remote terminal provided according to an embodiment of this application.

[0025] Figure 8 This is a schematic block diagram of a network device provided according to an embodiment of this application.

[0026] Figure 9 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0027] Figure 10 This is a schematic block diagram of a chip provided according to an embodiment of this application.

[0028] Figure 11 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0030] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, or other communication systems.

[0031] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0032] Optionally, the communication system in this application embodiment can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network deployment scenario.

[0033] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0034] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0035] Terminal devices can be stations (STs) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0036] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0037] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0038] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0039] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a network device or base station (gNB) in vehicle-mounted equipment, wearable devices, and NR networks, or a network device in a future evolved PLMN network or NTN network, etc.

[0040] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0041] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0042] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0043] The terminology used in the embodiments section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0044] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0045] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0046] In this application embodiment, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0047] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0048] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0049] Figure 1 This is a schematic diagram of a communication system applicable to an embodiment of this application. The transmission resources of the vehicle-mounted terminals (vehicle-mounted terminal 121 and vehicle-mounted terminal 122) are allocated by the base station 110, and the vehicle-mounted terminals transmit data on the side link according to the resources allocated by the base station 110. Specifically, the base station 110 can allocate resources for single transmission or semi-static transmission for the terminals.

[0050] Figure 2 This is a schematic diagram of another communication system applicable to the embodiments of this application. The vehicle-mounted terminals (vehicle-mounted terminal 131 and vehicle-mounted terminal 132) autonomously select transmission resources on the side link for data transmission. Optionally, the vehicle-mounted terminals may randomly select transmission resources or select transmission resources by listening.

[0051] It should be noted that device-to-device communication is a sidelink (SL) transmission technology based on device-to-device (D2D). Unlike traditional cellular systems where communication data is received or transmitted through base stations, vehicular networks use direct terminal-to-terminal communication, thus offering higher spectral efficiency and lower transmission latency. 3GPP defines two transmission modes, denoted as: sidelink resource allocation mode A and sidelink resource allocation mode B.

[0052] Mode A: The terminal's transmission resources are allocated by the base station, and the terminal transmits data on the side link according to the resources allocated by the base station; the base station can allocate resources for a single transmission or semi-static transmission to the terminal.

[0053] Mode B: The terminal selects a resource from the resource pool for data transmission.

[0054] Proximity-based Services (ProSe) involve device-to-device communication and are primarily for public safety-related services. In ProSe, by configuring the temporal location of resource pools—for example, by making resource pools discontinuous in the temporal domain—UEs can achieve discontinuous data transmission / reception on the sidelink, thereby saving power.

[0055] The research on vehicle-to-everything (V2X) systems primarily focuses on vehicle-to-vehicle (V2X) communication scenarios, mainly targeting relatively high-speed vehicle-to-vehicle and vehicle-to-person communication services. In V2X, since the onboard system has a continuous power supply, power efficiency is not the main issue; rather, data transmission latency is the primary concern. Therefore, the system design requires terminal devices to continuously send and receive data.

[0056] The study focuses on wearable devices (FeD2D) scenarios, specifically those where wearable devices access the network via mobile phones, primarily targeting scenarios with low mobility and low power access.

[0057] In FeD2D, a base station can configure the discontinuous reception (DRX) parameters of a remote terminal through a relay terminal.

[0058] In New Radio-Vehicle to Everything (NR-V2X), autonomous driving is supported, which places higher demands on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, wider coverage, and more flexible resource allocation.

[0059] In LTE-V2X systems, broadcast transmission is supported, while in NR-V2X systems, unicast and multicast transmission methods are introduced.

[0060] Similar to LTE V2X systems, NR V2X systems can also define the aforementioned mode A / mode B resource granting modes. Resource acquisition is indicated through sidelink granting, which specifies the time-frequency location of the corresponding Physical Sidelink Control Channel (PSCCH) and Physical Sidelink Shared Channel (PSSCH) resources.

[0061] In addition to the non-feedback, UE-initiated Hybrid Automatic Repeat Request (HARQ) retransmission, NR V2X introduces feedback-based HARQ retransmission, which is not limited to unicast communication but also includes multicast communication.

[0062] To facilitate a better understanding of the embodiments of this application, the UE-to-network relay technology related to this application will be described.

[0063] ProSe introduces a UE-to-network relay function based on Layer-3 (L3) relay, whereby a remote UE accesses the network through a relay UE. The relay UE performs the function of Internet Protocol (IP) layer relay, transmitting data between the remote UE and network devices. The remote UE and the relay UE are connected through a side link. Figure 3 A schematic flowchart illustrating the connection establishment between a remote UE and a relay UE is shown. In step S25, the relay UE reports the ID and IP information of the remote UE to the network. Based on this reported message, the network learns the association between the relay UE and the remote UE, and performs corresponding bearer / session management and configuration, thereby enabling the remote UE to connect to the network through the relay UE.

[0064] In some scenarios, Remote UE and Relay UE need to undergo a discovery process before establishing a connection. The discovery process can adopt either Mode A or Mode B. Figure 4 and Figure 5 An example of the discovery process for pattern A and pattern B is shown respectively.

[0065] like Figure 4 As shown, UE1 can act as a relay UE, sending an announcement message (also known as a discovery notification message) to notify the remote UE. The UE receiving this discovery notification message can establish a connection with UE1 when relay services are needed, and transmit relay data through UE1.

[0066] like Figure 5 As shown, UE1 can act as a Remote UE. If it wants to find a Relay UE, it can send a Solicitation message, also known as a discovery Solicitation message, to notify the Relay UE. The UE that receives the Solicitation message can reply with a discovery response message to UE1 when it is able to perform relay services, notifying UE1 that it can perform relay services.

[0067] In other scenarios, UEs can also use direct communication request (DCR) messages for device discovery. For example, a source UE can broadcast a DCR message containing information about the target UE. After receiving the DCR message, a relay UE forwards it to the corresponding target UE, thus completing the discovery process.

[0068] In some scenarios, network devices can configure signal quality thresholds for remote terminals to select relay terminals. The remote terminals can then select relay terminals based on these thresholds. Therefore, how to configure appropriate thresholds for remote terminals to select suitable relay terminals is an urgent problem to be solved.

[0069] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0070] Figure 6 This is a schematic interactive diagram of a wireless communication method 200 according to an embodiment of this application, such as... Figure 6As shown, the method 200 includes at least the following:

[0071] S210, the remote terminal sends first information, which is related to the side-by-side transmission of the remote terminal.

[0072] Correspondingly, the network device receives the first information.

[0073] Optionally, the remote terminal can be a terminal device in a vehicle networking system, or it can be a terminal device in other systems that support side-to-side communication and relay technology. This application is not limited to this.

[0074] In some embodiments of this application, "first information related to the lateral transmission of the remote terminal" can mean that the first information includes lateral transmission-related information of the remote terminal. For example, the first information may include relay terminal-related information, and / or lateral transmission status information between the remote terminal and the relay terminal.

[0075] In this embodiment, the first information can be considered a side-transmission status report. That is, the remote terminal can report side-transmission status or relay terminal-related information to the network device through the side-transmission status report. Furthermore, the network device can configure appropriate side-transmission signal quality thresholds for selecting relay terminals for the remote terminal based on the above information.

[0076] In some embodiments of this application, the first information includes, but is not limited to, at least one of the following:

[0077] Side-line signal quality threshold, which is used to select relay terminals;

[0078] Signal quality information of the side link between the remote terminal and the relay terminal;

[0079] Channel occupancy ratio (CBR) of the relay terminal's resource pool;

[0080] Time information of the measurement performed by the remote terminal;

[0081] The timing information for side-line transmission performed by the remote terminal;

[0082] The remote terminal performs the measurement of location information;

[0083] The remote terminal executes the location information for side-line transmission;

[0084] Transmission parameter information between the remote terminal and the relay terminal;

[0085] The number of relay terminals that meet the relay terminal selection criteria;

[0086] Report the reason value for the first piece of information.

[0087] This side-by-side signal quality threshold can be the signal quality threshold used by the remote terminal to select the relay terminal.

[0088] Optionally, the side-line signal quality threshold can be, for example, a side-line reference signal receiving power (RSRP) threshold. Alternatively, it can be other signal quality threshold values, such as a side-line reference signal receiving quality (RSRQ) threshold, a side-line signal to interference plus noise ratio (SINR) threshold, etc., which are not limited in this application.

[0089] As an example, for a remote terminal in a connected state, a relay terminal can be selected based on the lateral RSRP threshold (SL-RSRP threshold), and for a remote terminal in a non-connected state (e.g., idle / inactive state), a relay terminal can be selected based on the lateral discovery RSRP threshold (SL discovery RSRP threshold).

[0090] In some embodiments, the signal quality information of the sidelink between the remote terminal and the relay terminal can be RSRP, RSRQ, or SINR, etc., of the sidelink between the remote terminal and the relay terminal. The relay terminal here can include a relay terminal that has established a connection with the remote terminal, or a relay terminal that has previously established a connection with the remote terminal.

[0091] In some embodiments, relay terminals that meet the relay terminal selection criteria may include relay terminals that meet the aforementioned lateral signal quality threshold. The terminal device reports the number of relay terminals that meet the relay terminal selection criteria to the network device, so that the network device can adjust the lateral signal quality threshold based on the number of selectable relay terminals.

[0092] For example, if a remote terminal reports that there are no selectable relay terminals, or only a few selectable relay terminals, the network device can lower the side-going signal quality threshold so that the remote terminal can select an available relay terminal.

[0093] For example, if a remote terminal reports a large number of selectable relay terminals, but the transmission parameters between the relay terminal and the remote terminal are poor (e.g., a high average number of transmissions), the network device can raise the side-by-side signal quality threshold so that the terminal device can select a more suitable relay terminal.

[0094] In some embodiments, the Channel Busy Ratio (CBR) of a relay terminal's resource pool can reflect the relay traffic volume of that relay terminal. A higher CBR for a relay terminal's resource pool indicates that more remote terminals are using that relay terminal for relay services. Therefore, remote terminals report the CBR of the relay terminal's resource pool to the network device. This allows the network device to comprehensively consider the relay terminal's traffic volume and configure side-channel signal quality thresholds for selecting relay terminals, which helps to balance the traffic volume of relay terminals.

[0095] For example, if the remote terminal reports a large CBR (Cost Per Batch) for the relay terminal's resource pool to the network device, the network device can configure a larger signal quality threshold, thereby reducing the number of relay links and lowering the traffic load of the relay terminals.

[0096] In some embodiments, remote terminal performing measurement may refer to the remote terminal measuring the signal quality of the side link between the remote terminal and the relay terminal.

[0097] In some embodiments, the measurement performed by the remote terminal can refer to a measurement already performed by the remote terminal. After performing the measurement, the remote terminal can record the time information and / or location information of the measurement and further report it to the network device to assist the network device in configuring an appropriate lateral signal quality threshold for selecting relay terminals for the remote terminal.

[0098] In some embodiments, "sideline transmission performed by a remote terminal" can refer to a sideline transmission already performed by the remote terminal. After performing a sideline transmission, the remote terminal can record the time and / or location information of the sideline transmission and report it to the network device to assist the network device in configuring an appropriate signal quality threshold for selecting relay terminals.

[0099] In some embodiments, the time information of the remote terminal performing the measurement can be characterized by a time point before the remote terminal performs the measurement, or it can be characterized by the time when the remote terminal performs the measurement.

[0100] That is, the time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement, or it can be the time information when the remote terminal performs the measurement.

[0101] In some embodiments, the timing information of the remote terminal performing the side-transmission can be represented by a time point before the remote terminal performs the side-transmission, or it can be represented by the time when the remote terminal performs the side-transmission.

[0102] That is, the time information for the remote terminal to perform side-line transmission is the time information before the remote terminal performs side-line transmission, or it can be the time information when the remote terminal performs side-line transmission.

[0103] In some embodiments, the location information of the remote terminal performing the measurement can be characterized by a reference location before the remote terminal performs the measurement, or it can be characterized by the location of the remote terminal when performing the measurement.

[0104] That is, the location information for the remote terminal to perform the measurement is the location information before the remote terminal performs the measurement; or, it can be the location information when the remote terminal performs the measurement.

[0105] In some embodiments, the location information of the remote terminal performing side-line transmission can be characterized by a reference location before the remote terminal performs side-line transmission, or it can be characterized by the location of the remote terminal when performing side-line transmission.

[0106] That is, the location information of the remote terminal performing side-line transmission is the location information of the remote terminal before performing measurement; or, it can be the location information of the remote terminal when performing side-line transmission.

[0107] In summary, network devices can determine the distribution of relay terminals based on the time and / or location information reported by remote terminals, combined with the number of relay terminals that meet the selection criteria. For example, they can determine which time period has a higher number of selectable relay terminals, or which location range has a higher number of relay terminals.

[0108] It should be understood that, in the embodiments of this application, the transmission parameter information between the remote terminal and the relay terminal can refer to any parameter used to characterize the side-by-side transmission between the remote terminal and the relay terminal, and this application does not limit it.

[0109] As an example and not a limitation, the transmission parameter information between the remote terminal and the relay terminal includes at least one of the following:

[0110] Information on the average number of data packet transmissions between the remote terminal and the relay terminal;

[0111] The average number of data packet transmissions between the remote terminal and the relay terminal;

[0112] Average throughput of the side link between the remote terminal and the relay terminal.

[0113] For example, if the first data packet between the remote terminal and the relay terminal is successfully transmitted in one go, then the transmission count of the first data packet is one. Or, if the second data packet between the remote terminal and the relay terminal is successfully retransmitted in one go, then the transmission count of the second data packet is 2. The remote terminal can count the transmission count of multiple data packets between itself and the relay terminal to obtain the average transmission count of data packets between the remote terminal and the relay terminal.

[0114] For example, the remote terminal can classify the average number of data packet transmissions between the remote terminal and the relay terminal into three levels: excellent, average, and poor. An average number of transmissions less than or equal to a first threshold corresponds to an excellent level; an average number of transmissions greater than a second threshold corresponds to a poor level; and other average transmission counts correspond to an average level. As an example, the first threshold is 1, and the second threshold is 3.

[0115] The average number of data packet transmissions or the average transmission count level between the remote terminal and the relay terminal reflects the link quality or transmission experience of the sidelink between them. A lower average number of transmissions indicates better link quality or transmission experience, and vice versa. Therefore, the remote terminal reports this average transmission count or average transmission count level information to the network device. The network device can then configure a sidelink signal quality threshold for selecting the relay terminal based on this information. For example, configuring a larger sidelink signal quality threshold when the average transmission count is higher is beneficial for improving sidelink transmission performance.

[0116] The average throughput of the sidelink between the remote terminal and the relay terminal reflects the load on that sidelink. For example, a higher average throughput indicates a higher load on the sidelink, and vice versa. Therefore, when the remote terminal reports the average throughput of the sidelink between itself and the relay terminal to the network device, the network device can determine the load on the sidelink. This allows the network device to comprehensively consider the load on the sidelink and configure a sidelink signal quality threshold for selecting relay terminals. For instance, if the average throughput reported by the remote terminal is high, the network device can configure a higher sidelink signal quality threshold, thereby reducing the number of relay links and lowering the traffic load on the relay terminals.

[0117] In some embodiments, the remote terminal may also indicate to the network device the reason value for reporting the first information (i.e., the sidelink transmission status report), or in other words, generate the reason value for generating the first information. For example, the remote terminal may report the sidelink transmission status report, or generate the sidelink transmission status report, when the quality of the sidelink between the relay terminal and the remote terminal is poor, or when the sidelink transmission indicators between the relay terminal and the remote terminal are poor, or when there is no alternative relay terminal.

[0118] In some embodiments, the reason value for the terminal device to report the first information may include, but is not limited to, at least one of the following:

[0119] No relay terminal meeting the relay terminal selection criteria was detected;

[0120] The number of retransmissions of a single data packet between the remote terminal and the relay terminal exceeds the threshold for the first transmission.

[0121] The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal exceeds the second threshold;

[0122] The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold;

[0123] A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

[0124] Optionally, the first count threshold can be predefined, configured by the network device, or determined by the terminal device.

[0125] Optionally, the second threshold can be predefined, configured by the network device, or determined by the terminal device.

[0126] Optionally, the third threshold can be predefined, configured by the network device, or determined by the terminal device.

[0127] In some embodiments of this application, S210 may include:

[0128] If the first condition is met, the remote terminal sends the first information.

[0129] The first condition can be any condition indicating poor lateral link quality between the relay terminal and the remote terminal, poor lateral transmission performance between the relay terminal and the remote terminal, or no selectable relay terminal.

[0130] As an example rather than a limitation, the first condition includes at least one of the following:

[0131] No relay terminal meeting the relay terminal selection criteria was detected;

[0132] The number of retransmissions of a single data packet between the remote terminal and the relay terminal exceeds the threshold for the first transmission.

[0133] The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal exceeds the second threshold;

[0134] The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold;

[0135] A RLF (Relay-Link Fault) occurred on the side link between the remote terminal and the relay terminal.

[0136] In some embodiments of this application, the remote terminal can report first information via first Radio Resource Control (RRC) signaling. That is, the side-by-side transmission status report can be reported via RRC signaling.

[0137] For example, for a remote terminal in a connected state, a side-transmission status report can be sent to the network device via uplink information transfer signaling (ULInformationTransfer).

[0138] In other embodiments of this application, S210 includes:

[0139] The remote terminal sends a second RRC signaling message, which is used to notify the network device that the terminal device stores the first information;

[0140] The remote terminal receives an Information Request message, which is used to notify the remote terminal to report the first piece of information.

[0141] The remote terminal sends an InformationResponse message, which includes the first piece of information.

[0142] For example, when a remote terminal is camped in the first cell, it generates a side-link transmission status report. Then, the terminal device enters a non-connected state (e.g., idle / inactive state). After entering the connected state, the terminal device camps in the second cell. In this case, the remote terminal can send a second RRC signaling to the network device corresponding to the second cell to inform the network device that it has stored a side-link transmission status report. When the network device requests the terminal device to report the side-link transmission status report through InformationRequest, the terminal device reports the side-link transmission status report through InformationResponse.

[0143] In some embodiments, the first cell and the second cell are different. In this case, the remote terminal may also indicate the cell identification information (e.g., CellID) of the first cell to the network device corresponding to the second cell. Further, the network device corresponding to the second cell may forward the sideline transmission status report to the network device corresponding to the first cell, so that the network device corresponding to the first cell can determine the target sideline signal quality threshold configured for the remote terminal based on the sideline transmission status report.

[0144] In some embodiments of this application, the method 200 further includes:

[0145] S202, the network device determines the target side-going signal quality threshold configured for the remote terminal based on the first information. The target side-going signal quality threshold is used to select the relay terminal.

[0146] It should be understood that the network device configures the same target side-going signal quality threshold for all terminal devices. That is, the target side-going signal quality threshold can be cell-level, or it can be UE-specific. For example, the target side-going signal quality threshold configured for the first remote terminal can be determined by combining the location information of the first remote terminal with the side-going transmission status reports reported by one or more remote terminals.

[0147] For example, if the CBR of the resource pool of the relay terminal reported by the remote terminal is greater than the first CBR threshold, it indicates that the relay traffic on the relay terminal is large. In this case, the network device can raise the side-going signal quality threshold, for example, raise the currently configured side-going signal quality threshold by 3dB as the target side-going signal quality threshold, and further configure the target side-going signal quality threshold for the remote terminal.

[0148] For example, if the number of relay terminals reported by the remote terminal that meet the relay terminal selection criteria is less than a first quantity threshold (e.g., 2), or if the number of relay terminals that meet the relay terminal selection criteria is less than the first quantity threshold within the time period corresponding to the time information of the remote terminal performing the measurement (or within the time period corresponding to the time information of the sideline transmission), the network device can lower the sideline signal quality threshold, for example, lower the currently configured sideline signal quality threshold by 3dB as the target sideline signal quality threshold, and further configure the target sideline signal quality threshold for the remote terminal.

[0149] For example, if the number of relay terminals reported by the remote terminal that meet the relay terminal selection criteria is greater than the second quantity threshold (e.g., 4), but the transmission parameter indicators between the relay terminal and the remote terminal are poor (e.g., the average number of transmissions is high), the network device can raise the side-going signal quality threshold, for example, raise the currently configured side-going signal quality threshold by 3dB as the target side-going signal quality threshold, and further configure the remote terminal with the target side-going signal quality threshold.

[0150] For example, if the remote terminal reports the location information for performing lateral transmission (and / or measurement to be performed) and the number of relay terminals that meet the relay terminal selection criteria to the network device, then when the remote terminal needs to switch to another relay terminal, the network device can determine the target lateral signal quality threshold for the remote terminal based on the current location information of the remote terminal and the number of relay terminals around the location information in the lateral transmission status report, and further configure the target lateral signal quality threshold for the remote terminal.

[0151] In summary, remote terminals can send side-transmission status reports to network devices. Based on these reports, network devices can determine reasonable side-transmission signal quality thresholds for relay terminal selection. Furthermore, when remote terminals select relay terminals based on these thresholds, they are more likely to choose more suitable relay terminals, thus ensuring more reliable side-transmission.

[0152] The above text combined Figure 6 The method embodiments of this application are described in detail below, in conjunction with... Figures 7 to 11 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0153] Figure 7 A schematic block diagram of a remote terminal 400 according to an embodiment of this application is shown. Figure 7 As shown, the remote terminal 400 includes:

[0154] The communication unit 410 is used to send first information, which is related to the side-by-side transmission of the remote terminal.

[0155] In some embodiments of this application, the first information includes at least one of the following:

[0156] Side-line signal quality threshold, which is used to select relay terminals;

[0157] The signal quality information of the side link between the remote terminal and the relay terminal;

[0158] Channel occupancy ratio (CBR) of the relay terminal's resource pool;

[0159] The time information of the measurement performed by the remote terminal;

[0160] The remote terminal executes the time information of the side-line transmission;

[0161] The remote terminal performs the measurement of location information;

[0162] The remote terminal performs side-line transmission of location information;

[0163] The transmission parameter information between the remote terminal and the relay terminal;

[0164] The number of relay terminals that meet the relay terminal selection criteria;

[0165] Report the reason value for the first piece of information.

[0166] In some embodiments of this application, the time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement; or

[0167] The time information for the remote terminal to perform the measurement is the time information when the remote terminal performs the measurement.

[0168] In some embodiments of this application, the time information for the remote terminal to perform side-by-side transmission is the time information prior to the remote terminal performing the side-by-side transmission; or

[0169] The time information for the remote terminal to perform side-by-side transmission is the time information when the remote terminal performs side-by-side transmission.

[0170] In some embodiments of this application, the location information for which the remote terminal performs the measurement is the location information before the remote terminal performs the measurement; or

[0171] The location information for the measurement performed by the remote terminal is the location information at the time the remote terminal performs the measurement.

[0172] In some embodiments of this application, the location information of the remote terminal performing side-by-side transmission is the location information of the remote terminal before performing side-by-side transmission; or

[0173] The location information of the remote terminal performing side-by-side transmission is the location information of the remote terminal when performing side-by-side transmission.

[0174] In some embodiments of this application, the transmission parameter information between the remote terminal and the relay terminal includes at least one of the following:

[0175] Information on the average number of data packet transmissions between the remote terminal and the relay terminal;

[0176] The average number of data packet transmissions between the remote terminal and the relay terminal;

[0177] The average throughput of the side link between the remote terminal and the relay terminal.

[0178] In some embodiments of this application, the reason value for reporting the first information includes at least one of the following:

[0179] No relay terminal meeting the relay terminal selection criteria was detected;

[0180] The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold.

[0181] The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold.

[0182] The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold.

[0183] A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

[0184] In some embodiments of this application, the communication unit 410 is further configured to:

[0185] If a first condition is met, the first information is sent, wherein the first condition includes at least one of the following:

[0186] No relay terminal meeting the relay terminal selection criteria was detected;

[0187] The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold.

[0188] The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold.

[0189] The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold.

[0190] An RLF occurs on the side link between the remote terminal and the relay terminal.

[0191] In some embodiments of this application, the communication unit 410 is further configured to:

[0192] Send a first Radio Resource Control (RRC) signaling message, the first RRC signaling message including the first information.

[0193] In some embodiments of this application, the first RRC signaling includes uplink information transfer signaling.

[0194] In some embodiments of this application, the communication unit 410 is further configured to:

[0195] Send a second RRC signaling message, the second RRC signaling message being used to notify the remote terminal that the first information is stored on it;

[0196] Receive an information request message, the information request message being used to notify the remote terminal to report the first information;

[0197] Send an information response message, the information response message including the first information.

[0198] In some embodiments of this application, the information response message further includes cell identifier information of the first cell, which is obtained by the remote terminal while residing in the first cell.

[0199] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0200] It should be understood that the terminal device 400 according to the embodiments of this application may correspond to the remote terminal in the method embodiments of this application, and the above and other operations and / or functions of each unit in the remote terminal 400 are respectively for implementing Figure 6 The corresponding process of the remote terminal in method 200 shown will not be described in detail here for the sake of brevity.

[0201] Figure 8 This is a schematic block diagram of a network device according to an embodiment of this application. Figure 8 The network equipment 500 includes:

[0202] The communication unit 510 is used to receive first information sent by the remote terminal, the first information being related to the side-by-side transmission of the remote terminal.

[0203] In some embodiments of this application, the first information includes at least one of the following:

[0204] Side-line signal quality threshold, which is used to select relay terminals;

[0205] The signal quality information of the side link between the remote terminal and the relay terminal;

[0206] Channel occupancy ratio (CBR) of the relay terminal's resource pool;

[0207] The time information of the measurement performed by the remote terminal;

[0208] The remote terminal executes the time information of the side-line transmission;

[0209] The remote terminal performs the measurement of location information;

[0210] The remote terminal performs side-line transmission of location information;

[0211] The transmission parameter information between the remote terminal and the relay terminal;

[0212] The number of relay terminals that meet the relay terminal selection criteria;

[0213] Report the reason value for the first piece of information.

[0214] In some embodiments of this application, the time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement; or

[0215] The time information for the remote terminal to perform the measurement is the time information when the remote terminal performs the measurement.

[0216] In some embodiments of this application, the time information for the remote terminal to perform side-by-side transmission is the time information prior to the remote terminal performing the side-by-side transmission; or

[0217] The time information for the remote terminal to perform side-by-side transmission is the time information when the remote terminal performs side-by-side transmission.

[0218] In some embodiments of this application, the location information for which the remote terminal performs the measurement is the location information before the remote terminal performs the measurement; or

[0219] The location information for the measurement performed by the remote terminal is the location information at the time the remote terminal performs the measurement.

[0220] In some embodiments of this application, the location information of the remote terminal performing side-by-side transmission is the location information of the remote terminal before performing side-by-side transmission; or

[0221] The location information of the remote terminal performing side-by-side transmission is the location information of the remote terminal when performing side-by-side transmission.

[0222] In some embodiments of this application, the transmission parameter information between the remote terminal and the relay terminal includes at least one of the following:

[0223] Information on the average number of data packet transmissions between the remote terminal and the relay terminal;

[0224] The average number of data packet transmissions between the remote terminal and the relay terminal;

[0225] The average throughput of the side link between the remote terminal and the relay terminal.

[0226] In some embodiments of this application, the reason value for reporting the first information includes at least one of the following:

[0227] No relay terminal meeting the relay terminal selection criteria was detected;

[0228] The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold.

[0229] The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold.

[0230] The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold.

[0231] A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

[0232] In some embodiments of this application, the communication unit 510 is further configured to:

[0233] The first information sent by the remote terminal is received under a first condition, wherein the first condition includes at least one of the following:

[0234] No relay terminal meeting the relay terminal selection criteria was detected;

[0235] The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold.

[0236] The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold.

[0237] The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold.

[0238] An RLF occurs on the side link between the remote terminal and the relay terminal.

[0239] In some embodiments of this application, the communication unit 510 is further configured to:

[0240] Receive a first Radio Resource Control (RRC) signaling message sent by a remote terminal, wherein the first RRC signaling message includes the first information.

[0241] In some embodiments of this application, the first RRC signaling includes uplink information transfer signaling.

[0242] In some embodiments of this application, the communication unit 510 is further configured to:

[0243] The system receives a second RRC signaling message sent by the remote terminal, the second RRC signaling message being used to notify the remote terminal that the first information is stored on it;

[0244] Send an information request message to the remote terminal, the information request message being used to notify the remote terminal to report the first information;

[0245] The system receives an information response message sent by the remote terminal, the information response message including the first information.

[0246] In some embodiments of this application, the information response message further includes cell identifier information of the first cell, which is obtained by the remote terminal while residing in the first cell.

[0247] In some embodiments of this application, the communication unit 510 is further configured to:

[0248] Send the first information to the network device corresponding to the first cell.

[0249] In some embodiments of this application, the network device further includes:

[0250] The processing unit is configured to determine, based on the first information, a target side-going signal quality threshold for configuring the remote terminal, wherein the target side-going signal quality threshold is used to select the relay terminal.

[0251] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0252] It should be understood that the network device 500 according to the embodiments of this application may correspond to the network device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 6 The corresponding procedures for network devices in method 200 are not described in detail here for the sake of brevity.

[0253] Figure 9 This is a schematic structural diagram of a communication device 600 provided in an embodiment of this application. Figure 9 The communication device 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0254] Optionally, such as Figure 9 As shown, the communication device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in this embodiment.

[0255] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0256] Optionally, such as Figure 9 As shown, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0257] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

[0258] Optionally, the communication device 600 may specifically be a network device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0259] Optionally, the communication device 600 may specifically be a remote terminal in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the remote terminal in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0260] Figure 10 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 10 The chip 700 shown includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0261] Optionally, such as Figure 10 As shown, chip 700 may further include memory 720. Processor 710 can retrieve and run computer programs from memory 720 to implement the methods described in this embodiment.

[0262] The memory 720 can be a separate device independent of the processor 710, or it can be integrated into the processor 710.

[0263] Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0264] Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0265] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0266] Optionally, the chip can be applied to the remote terminal in the embodiments of this application, and the chip can implement the corresponding processes implemented by the remote terminal in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0267] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0268] Figure 11This is a schematic block diagram of a communication system 900 provided in an embodiment of this application. Figure 11 As shown, the communication system 900 includes a terminal device 910 and a network device 920.

[0269] The terminal device 910 can be used to implement the corresponding functions implemented by the remote terminal in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, these will not be elaborated here.

[0270] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0271] It is understood that the memory in the embodiments of this application can be volatile memory or 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 (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0272] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0273] This application also provides a computer-readable storage medium for storing computer programs.

[0274] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0275] Optionally, the computer-readable storage medium can be applied to the remote terminal in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the remote terminal in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0276] This application also provides a computer program product, including computer program instructions.

[0277] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0278] Optionally, the computer program product can be applied to the remote terminal in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the remote terminal in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0279] This application also provides a computer program.

[0280] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0281] Optionally, the computer program can be applied to the remote terminal in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the remote terminal in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0282] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0283] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0284] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0285] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0286] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0287] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0288] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, include: The remote terminal sends a second Radio Resource Control (RRC) signaling message, which is used to notify the remote terminal that the first information is stored on it. The remote terminal receives an information request message, which is used to notify the remote terminal to report the first information; The remote terminal sends an information response message, the information response message including the first information; The first information is related to the side-by-side transmission of the remote terminal, and the information response message also includes the cell identifier information of the first cell. The first information is obtained by the remote terminal while camped in the first cell, and the first information includes the channel occupancy ratio (CBR) of the relay terminal's resource pool.

2. The method according to claim 1, characterized in that, The first information includes at least one of the following: Side-line signal quality threshold, which is used to select relay terminals; The signal quality information of the side link between the remote terminal and the relay terminal; The time information of the measurement performed by the remote terminal; The remote terminal executes the time information of the side-line transmission; The remote terminal performs the measurement of location information; The remote terminal performs side-line transmission of location information; The transmission parameter information between the remote terminal and the relay terminal; The number of relay terminals that meet the relay terminal selection criteria; Report the reason value for the first piece of information.

3. The method according to claim 2, characterized in that, The time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement; or the time information for the remote terminal to perform the measurement is the time information when the remote terminal performs the measurement.

4. The method according to claim 2 or 3, characterized in that, The time information for the remote terminal to perform side-transmission is the time information before the remote terminal performs side-transmission; or the time information for the remote terminal to perform side-transmission is the time information when the remote terminal performs side-transmission.

5. The method according to claim 2 or 3, characterized in that, The location information for the measurement performed by the remote terminal is the location information before the measurement is performed by the remote terminal; or the location information for the measurement performed by the remote terminal is the location information during the measurement.

6. The method according to claim 2 or 3, characterized in that, The location information of the remote terminal performing side-line transmission is the location information of the remote terminal before performing side-line transmission; or the location information of the remote terminal performing side-line transmission is the location information of the remote terminal when performing side-line transmission.

7. The method according to claim 2 or 3, characterized in that, The transmission parameter information between the remote terminal and the relay terminal includes at least one of the following: Information on the average number of data packet transmissions between the remote terminal and the relay terminal; The average number of data packet transmissions between the remote terminal and the relay terminal; The average throughput of the side link between the remote terminal and the relay terminal.

8. The method according to claim 2 or 3, characterized in that, The reason value for reporting the first information includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

9. The method according to any one of claims 1-3, characterized in that, The remote terminal sends the first information, including: The remote terminal sends the first information when a first condition is met, wherein the first condition includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. An RLF occurs on the side link between the remote terminal and the relay terminal.

10. The method according to any one of claims 1-3, characterized in that, The remote terminal sends the first information, including: The remote terminal sends a first RRC signaling message, which includes the first information.

11. The method according to claim 10, characterized in that, The first RRC signaling includes uplink information transfer signaling.

12. A method for wireless communication, characterized in that, include: The network device receives a second Radio Resource Control (RRC) signaling message sent by a remote terminal, the second RRC signaling message being used to notify the remote terminal that first information is stored on it; The network device sends an information request message to the remote terminal, the information request message being used to notify the remote terminal to report the first information; The network device receives an information response message sent by the remote terminal, the information response message including the first information; The first information is related to the side-by-side transmission of the remote terminal, and the information response message also includes the cell identifier information of the first cell. The first information is obtained by the remote terminal while camped in the first cell, and the first information includes the channel occupancy ratio (CBR) of the relay terminal's resource pool.

13. The method according to claim 12, characterized in that, The first information includes at least one of the following: Side-line signal quality threshold, which is used to select relay terminals; The signal quality information of the side link between the remote terminal and the relay terminal; The time information of the measurement performed by the remote terminal; The remote terminal executes the time information of the side-line transmission; The remote terminal performs the measurement of location information; The remote terminal performs side-line transmission of location information; The transmission parameter information between the remote terminal and the relay terminal; The number of relay terminals that meet the relay terminal selection criteria; Report the reason value for the first piece of information.

14. The method according to claim 13, characterized in that, The time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement; or the time information for the remote terminal to perform the measurement is the time information when the remote terminal performs the measurement.

15. The method according to claim 13 or 14, characterized in that, The time information for the remote terminal to perform side-transmission is the time information before the remote terminal performs side-transmission; or the time information for the remote terminal to perform side-transmission is the time information when the remote terminal performs side-transmission.

16. The method according to claim 13 or 14, characterized in that, The location information for the measurement performed by the remote terminal is the location information before the remote terminal performs the measurement; or the time information for the measurement performed by the remote terminal is the location information at the time the remote terminal performs the measurement.

17. The method according to claim 13 or 14, characterized in that, The location information of the remote terminal performing side-transmission is the location information of the remote terminal before performing side-transmission; or the time information of the remote terminal performing side-transmission is the location information of the remote terminal when performing side-transmission.

18. The method according to claim 13 or 14, characterized in that, The transmission parameter information between the remote terminal and the relay terminal includes at least one of the following: Information on the average number of data packet transmissions between the remote terminal and the relay terminal; The average number of data packet transmissions between the remote terminal and the relay terminal; The average throughput of the side link between the remote terminal and the relay terminal.

19. The method according to claim 13 or 14, characterized in that, The reason value for reporting the first information includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

20. The method according to any one of claims 12-14, characterized in that, The network device receives first information sent by the remote terminal, including: The network device receives the first information sent by the remote terminal under a first condition, wherein the first condition includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. An RLF occurs on the side link between the remote terminal and the relay terminal.

21. The method according to any one of claims 12-14, characterized in that, The network device receives first information sent by the remote terminal, including: The network device receives a first RRC signaling sent by a remote terminal, the first RRC signaling including the first information.

22. The method according to claim 21, characterized in that, The first RRC signaling includes uplink information transfer signaling.

23. The method according to claim 22, characterized in that, The method further includes: The network device sends the first information to the network device corresponding to the first cell.

24. The method according to any one of claims 12-14, or claim 22 or 23, characterized in that, The method further includes: The network device determines a target side-going signal quality threshold for the remote terminal based on the first information, and the target side-going signal quality threshold is used to select the relay terminal.

25. A remote terminal, characterized in that, include: The communication unit is used to send a second Radio Resource Control (RRC) signaling message, the second RRC signaling message being used to notify the remote terminal that first information is stored on it; The remote terminal receives an information request message, which is used to notify the remote terminal to report the first information; The remote terminal sends an information response message, the information response message including the first information; The first information is related to the side-by-side transmission of the remote terminal, and the information response message also includes the cell identifier information of the first cell. The first information is obtained by the remote terminal while camped in the first cell, and the first information includes the channel occupancy ratio (CBR) of the relay terminal's resource pool.

26. The remote terminal according to claim 25, characterized in that, The first information includes at least one of the following: Side-line signal quality threshold, which is used to select relay terminals; The signal quality information of the side link between the remote terminal and the relay terminal; The time information of the measurement performed by the remote terminal; The remote terminal executes the time information of the side-line transmission; The remote terminal performs the measurement of location information; The remote terminal performs side-line transmission of location information; The transmission parameter information between the remote terminal and the relay terminal; The number of relay terminals that meet the relay terminal selection criteria; Report the reason value for the first piece of information.

27. The remote terminal according to claim 26, characterized in that, The time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement; or the time information for the remote terminal to perform the measurement is the time information when the remote terminal performs the measurement.

28. The remote terminal according to claim 26 or 27, characterized in that, The time information for the remote terminal to perform side-transmission is the time information before the remote terminal performs side-transmission; or the time information for the remote terminal to perform side-transmission is the time information when the remote terminal performs side-transmission.

29. The remote terminal according to claim 26 or 27, characterized in that, The location information for the measurement performed by the remote terminal is the location information before the remote terminal performs the measurement; or the time information for the measurement performed by the remote terminal is the location information at the time the remote terminal performs the measurement.

30. The remote terminal according to claim 26 or 27, characterized in that, The location information of the remote terminal performing side-transmission is the location information of the remote terminal before performing side-transmission; or the time information of the remote terminal performing side-transmission is the location information of the remote terminal when performing side-transmission.

31. The remote terminal according to claim 26 or 27, characterized in that, The transmission parameter information between the remote terminal and the relay terminal includes at least one of the following: Information on the average number of data packet transmissions between the remote terminal and the relay terminal; The average number of data packet transmissions between the remote terminal and the relay terminal; The average throughput of the side link between the remote terminal and the relay terminal.

32. The remote terminal according to claim 26 or 27, characterized in that, The reason value for reporting the first information includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

33. The remote terminal according to any one of claims 25-27, characterized in that, The communication unit is also used for: If a first condition is met, the first information is sent, wherein the first condition includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. An RLF occurs on the side link between the remote terminal and the relay terminal.

34. The remote terminal according to any one of claims 25-27, characterized in that, The communication unit is also used for: Send a first RRC signaling message, the first RRC signaling message including the first information.

35. The remote terminal according to claim 34, characterized in that, The first RRC signaling includes uplink information transfer signaling.

36. A network device, characterized in that, include: The communication unit is used to receive a second Radio Resource Control (RRC) signaling sent by a remote terminal, wherein the second RRC signaling is used to notify the remote terminal that first information is stored on it. The network device sends an information request message to the remote terminal, the information request message being used to notify the remote terminal to report the first information; The network device receives an information response message sent by the remote terminal, the information response message including the first information; The first information is related to the side-by-side transmission of the remote terminal, and the information response message also includes the cell identifier information of the first cell. The first information is obtained by the remote terminal while camped in the first cell, and the first information includes the channel occupancy ratio (CBR) of the relay terminal's resource pool.

37. The network device according to claim 36, characterized in that, The first information includes at least one of the following: Side-line signal quality threshold, which is used to select relay terminals; The signal quality information of the side link between the remote terminal and the relay terminal; The time information of the measurement performed by the remote terminal; The remote terminal executes the time information of the side-line transmission; The remote terminal performs the measurement of location information; The remote terminal performs side-line transmission of location information; The transmission parameter information between the remote terminal and the relay terminal; The number of relay terminals that meet the relay terminal selection criteria; Report the reason value for the first piece of information.

38. The network device according to claim 37, characterized in that, The time information for the remote terminal to perform the measurement is the time information before the remote terminal performs the measurement; or the time information for the remote terminal to perform the measurement is the time information when the remote terminal performs the measurement.

39. The network device according to claim 37 or 38, characterized in that, The time information for the remote terminal to perform side-transmission is the time information before the remote terminal performs side-transmission; or the time information for the remote terminal to perform side-transmission is the time information when the remote terminal performs side-transmission.

40. The network device according to claim 37 or 38, characterized in that, The location information for the measurement performed by the remote terminal is the location information before the remote terminal performs the measurement; or the time information for the measurement performed by the remote terminal is the location information at the time the remote terminal performs the measurement.

41. The network device according to claim 37 or 38, characterized in that, The location information of the remote terminal performing side-transmission is the location information of the remote terminal before performing side-transmission; or the time information of the remote terminal performing side-transmission is the location information of the remote terminal when performing side-transmission.

42. The network device according to claim 37 or 38, characterized in that, The transmission parameter information between the remote terminal and the relay terminal includes at least one of the following: Information on the average number of data packet transmissions between the remote terminal and the relay terminal; The average number of data packet transmissions between the remote terminal and the relay terminal; The average throughput of the side link between the remote terminal and the relay terminal.

43. The network device according to claim 37 or 38, characterized in that, The reason value for reporting the first information includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. A radio link failure (RLF) occurred on the side link between the remote terminal and the relay terminal.

44. The network device according to any one of claims 36-38, characterized in that, The communication unit is also used for: The first information sent by the remote terminal is received under a first condition, wherein the first condition includes at least one of the following: No relay terminal meeting the relay terminal selection criteria was detected; The number of retransmissions of a single data packet between the remote terminal and the relay terminal is greater than the first retransmission threshold. The cumulative number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the second threshold. The average number of retransmissions of multiple data packets between the remote terminal and the relay terminal is greater than the third retransmission threshold. An RLF occurs on the side link between the remote terminal and the relay terminal.

45. The network device according to any one of claims 36-38, characterized in that, The communication unit is also used for: Receive a first RRC signaling sent by a remote terminal, the first RRC signaling including the first information.

46. ​​The network device according to claim 45, characterized in that, The first RRC signaling includes uplink information transfer signaling.

47. The network device according to claim 46, characterized in that, The communication unit is also used for: Send the first information to the network device corresponding to the first cell.

48. The network device according to claim 37, 38, 46, or 47, characterized in that, The network device also includes: The processing unit is configured to determine, based on the first information, a target side-going signal quality threshold for configuring the remote terminal, wherein the target side-going signal quality threshold is used to select the relay terminal.

49. A remote terminal, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 11.

50. A network device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 12 to 24.

51. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 11, or the method as claimed in any one of claims 12 to 24.

52. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 11, or the method as claimed in any one of claims 12 to 24.

53. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 11, or the method as claimed in any one of claims 12 to 24.

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