Relay service method and device based on side link, terminal and network side equipment

Abstract

The present application discloses a sidelink-based relay service method and apparatus, a terminal and a network-side device, wherein the method comprises: a first terminal performs a first operation; the first terminal provides a service related to the relay service based on the first operation; the first operation comprises at least one of the following: establishing a sidelink relay loop while ignoring a wireless channel quality threshold; establishing a sidelink relay loop when the wireless channel quality of the first terminal meets a first threshold range; receiving an available target carrier notified by a second terminal or a network-side device and activating the sidelink relay loop on the target carrier when the wireless channel quality of the first terminal does not meet a second threshold range; switching to establishing a backhaul channel based on a target RAT when the wireless channel quality of the first terminal does not meet a second threshold range; sending a first message to the network-side device when the wireless channel quality of the first terminal does not meet a second threshold range.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a relay service method and device based on a sidelink, a terminal, and a network-side device. Background Art

[0002] When the existing wireless link relay terminal and the remote terminal establish a sidelink relay loop to the network side device, the wireless channel quality of the Uu interface, such as the Reference Signal Receiving Power (RSRP), needs to meet the preset threshold requirements. If the threshold requirements cannot be met, the sidelink relay loop to the network side device cannot be established. However, some XR terminals (such as HMD devices) require the processing of auxiliary video signals from mobile terminals to complete extended reality (Extended Real, XR). When the sidelink relay function of the mobile terminal or XR terminal cannot be used due to network threshold restrictions, XR services based on the sidelink relay loop and the cooperation of the mobile terminal and the XR terminal cannot be provided. Summary of the invention

[0003] The embodiments of the present application provide a sidelink-based relay service method and apparatus, a terminal, and a network-side device, which can solve the problem that a sidelink relay loop to a network-side device cannot be established when the wireless channel quality of the terminal does not meet the existing agreed threshold.

[0004] In a first aspect, a sidelink-based relay service method is provided, comprising: a first terminal performs a first operation; the first terminal provides a service related to the relay service based on the first operation; wherein the first operation includes at least one of the following: establishing a sidelink relay loop while ignoring a wireless channel quality threshold; establishing the sidelink relay loop when the wireless channel quality of the first terminal meets a first threshold range; receiving an available target carrier notified by a second terminal or a network-side device and activating the sidelink relay loop on the target carrier when the wireless channel quality of the first terminal does not meet a second threshold range; switching to establishing a backhaul channel based on a target RAT when the wireless channel quality of the first terminal does not meet the second threshold range; sending a first message to a network-side device when the wireless channel quality of the first terminal does not meet the second threshold range, wherein the first message is used to request that the service related to the relay service be provided based on the sidelink relay loop.

[0005] In a second aspect, a sidelink-based relay service method is provided, comprising: a network side device receives a first message sent by a first terminal, wherein the first message is used to request provision of services related to the relay service based on the sidelink relay loop; the network side device sends a response message to the first terminal, wherein the response message is used to indicate whether the first terminal is allowed or denied to provide the services related to the relay service based on the sidelink relay loop.

[0006] In a third aspect, a sidelink-based relay service device is provided, which is applied to a first terminal, and includes: an execution module for executing a first operation; a providing module for providing services related to the relay service based on the first operation; wherein the first operation includes at least one of the following: establishing a sidelink relay loop while ignoring a wireless channel quality threshold; establishing the sidelink relay loop when the wireless channel quality of the first terminal meets a first threshold range; receiving an available target carrier notified by a second terminal or a network-side device and activating the sidelink relay loop on the target carrier when the wireless channel quality of the first terminal does not meet a second threshold range; switching to establishing a backhaul channel based on a target RAT when the wireless channel quality of the first terminal does not meet the second threshold range; sending a first message to the network-side device when the wireless channel quality of the first terminal does not meet the second threshold range, wherein the first message is used to request that the services related to the relay service be provided based on the sidelink relay loop.

[0007] In a fourth aspect, a sidelink-based relay service device is provided, which is applied to a network side device, including: a receiving module, used to receive a first message sent by a first terminal, wherein the first message is used to request the provision of services related to the relay service based on the sidelink relay loop; a first sending module, used to send a response message to the first terminal, wherein the response message is used to indicate whether the first terminal is allowed or denied to provide the services related to the relay service based on the sidelink relay loop.

[0008] In a fifth aspect, a terminal is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0009] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to perform a first operation, and the communication interface is used to provide services related to a relay service based on the first operation.

[0010] In the seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0011] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to indicate whether the first terminal is allowed or denied to provide the service related to the relay service based on the sidelink relay loop, and the communication interface is used to receive a first message sent by the first terminal, and to send a response message to the first terminal.

[0012] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0013] In the tenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method steps described in the first aspect, or to implement the method steps described in the second aspect.

[0014] In the eleventh aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the method steps as described in the first aspect, or to implement the method steps as described in the second aspect.

[0015] In an embodiment of the present application, the first terminal may establish a sidelink relay loop while ignoring the radio channel quality threshold, or may establish a sidelink relay loop when the radio channel quality of the first terminal meets the newly established first threshold range; or may receive an available target carrier notified by the second terminal and activate the sidelink relay loop on the target carrier when the radio channel quality of the first terminal does not meet the second threshold range; or may switch to establishing a backhaul channel based on the target RAT when the radio channel quality of the first terminal does not meet the second threshold range; or may send a first message to the network side device to request the sidelink relay loop to provide services related to the relay service when the radio channel quality of the first terminal does not meet the second threshold range. That is to say, through the method steps of the above embodiment of the present application, the problem of being unable to establish a sidelink relay loop to the network side device when the radio channel quality of the first terminal does not meet the existing agreed threshold can be avoided, thereby improving the existing relay mode and increasing the coverage of the relay service provided jointly by the relay terminal and the remote terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the network topology structure that provides XR services jointly through mobile terminals and XR terminals;

[0017] Figure 2 A block diagram showing a wireless communication system to which the embodiments of the present application can be applied;

[0018] Figure 3 It is one of the flow charts of the relay service method based on the sidelink in the embodiment of the present application;

[0019] Figure 4 This is the second flow chart of the relay service method based on the sidelink according to the embodiment of the present application;

[0020] Figure 5 This is one of the schematic diagrams of the structure of a relay service device based on a side link according to an embodiment of the present application;

[0021] Figure 6 This is the second structural diagram of the relay service device based on the side link according to the embodiment of the present application;

[0022] Figure 7 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0023] Figure 8 is a schematic diagram of the structure of a terminal in an embodiment of the present application;

[0024] Fig. 9 It is a schematic diagram of the structure of the network side device of an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0026] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0027] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0028] Figure 2A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal side devices, and the wearable device includes: a smart watch, a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0029] First, the relevant terms in the embodiments of the present application are explained.

[0030] 1. XR Terminal

[0031] As a typical XR terminal, a head mounted device (HMD) is a device worn on the head to display XR videos. The design of HMD is constrained by many factors:

[0032] Weight limit: The weight of the HMD needs to be controlled so that the human head can wear it comfortably for a long time, and the mass needs to be small;

[0033] Low operating heat generation: High heat generation can cause discomfort in the head, and in addition, the heat dissipation effect of the head is poor;

[0034] Due to the above limitations, it is difficult to install a large-capacity battery and a video signal processing circuit with high computing power in the HMD. To provide XR services, the first method is to use an edge computing server deployed near a wireless transmission node (base station) of a wireless network to process video signal compression / decompression, and the HMD directly receives the decompressed video signal from the wireless network for display; or send the collected video signal to the wireless network node, and the edge computing server near the wireless network node compresses the video signal and then sends it out. The second method is to utilize the powerful data transceiver and signal processing capabilities of the mobile terminal. First, the mobile terminal receives video data from the wireless network node, decompresses the video data and then sends it to the HMD for display; or the HMD sends the collected video data to the mobile terminal, and the mobile terminal compresses the video data and sends it to the wireless network node.

[0035] When using the second method above, the network topology is as Figure 2 shown. In this case, the network-side device (base station) can avoid encoding and decoding the video stream data, and the UE and the HMD jointly provide XR service to the end user. By utilizing the powerful wireless communication function of the mobile terminal, the processing requirements for the XR terminal can be reduced.

[0036] When using the sidelink relay technology and the mobile terminal and the XR terminal jointly provide XR services, according to the current understanding, the radio air interface channel quality of the mobile terminal (relay terminal) needs to be within a range set by the network (RSRP threshold 1, RSRP threshold 2), where RSRP threshold 1 < RSRP threshold 2. When this requirement is not met, the relay function cannot be activated; this threshold is to ensure that the relay UE has sufficient Uu interface capacity to provide wireless backhaul and at the same time control the interference to the base station.

[0037] The radio air interface quality of the XR terminal (remote terminal) needs to be lower than RSRP threshold 3. When this requirement is not met, the remote UE cannot access the network through the relay UE. This threshold setting enables the remote UE to access the network through the relay terminal only when the wireless link quality is poor, and gives priority to using the Uu interface direct connection for communication at other times.

[0038] Next, in combination with the accompanying drawings, through some embodiments and their application scenarios, the sidelink-based relay service method provided by the embodiments of the present application will be described in detail.

[0039] As Figure 3 shown, the embodiments of the present application provide a sidelink-based relay service method, and the steps of this method include:

[0040] Step 302, the first terminal performs a first operation;

[0041] Step 304, the first terminal provides services related to the relay service based on the first operation;

[0042] Wherein, the first operation includes at least one of the following:

[0043] Establish a sidelink relay loop while ignoring the wireless channel quality threshold;

[0044] Establish a sidelink relay loop when the wireless channel quality of the first terminal meets the first threshold range;

[0045] When the wireless channel quality of the first terminal does not meet the second threshold range, receive the available target carrier notified by the second terminal or the network side device, and activate the sidelink relay loop on the target carrier;

[0046] When the wireless channel quality of the first terminal does not meet the second threshold range, switch to establish a backhaul channel based on the target Radio Access Technology (RAT);

[0047] When the wireless channel quality of the first terminal does not meet the second threshold range, send a first message to the network side device, where the first message is used to request services related to the relay service based on the sidelink relay loop.

[0048] It should be noted that the first terminal in the embodiments of the present application may be a relay terminal or a remote terminal. In addition, the second threshold range in the embodiments of the present application may refer to the threshold range of the wireless channel quality in the prior art. That is, when the first terminal is a relay terminal, the second threshold range may be (RSRP threshold 1, RSRP threshold 2), where RSRP threshold 1 < RSRP threshold 2; and when the first terminal is a remote terminal, the second threshold range may refer to the range below the RSRP threshold 3. And the first threshold range in the embodiments of the present application may be a wireless channel quality threshold range newly configured by the network side device for the first terminal through broadcast signaling or dedicated signaling, that is, a range different from the first threshold range.

[0049] That is, through the above steps 302 and 304, the first terminal can establish a sidelink relay loop while ignoring the radio channel quality threshold, or establish a sidelink relay loop when the radio channel quality of the first terminal meets the newly established first threshold range; it can also be that when the radio channel quality of the first terminal does not meet the second threshold range, the available target carrier notified by the second terminal is received, and the sidelink relay loop is activated on the target carrier; it can also be that when the radio channel quality of the first terminal does not meet the second threshold range, it switches to establish a backhaul channel based on the target RAT; or when the radio channel quality of the first terminal does not meet the second threshold range, a first message is sent to the network side device to request the sidelink relay loop to provide services related to the relay service. That is to say, through the method steps of the above embodiments of the present application, the problem that the sidelink relay loop cannot be established to the network side device when the radio channel quality of the first terminal does not meet the existing agreed threshold can be avoided, thereby improving the existing relay mode and enhancing the coverage of the relay service jointly provided by the relay terminal and the remote terminal.

[0050] In addition, it should be noted that the services related to the relay service in the embodiment of the present application may refer to services that require the cooperation of a mobile phone, such as XR services. Based on this, the remote terminal in the embodiment of the present application may be an XR device.

[0051] In an optional implementation of an embodiment of the present application, the operation of establishing a sidelink relay loop while ignoring the wireless channel quality threshold can be triggered based on at least one of the following configuration methods: predefined, dedicated signaling, broadcast signaling, and sidelink signaling.

[0052] That is to say, the network side device can indicate to the first terminal based on proprietary signaling, broadcast signaling or side link signaling that a side link relay loop can be established while ignoring the wireless channel quality threshold, or the first terminal can be predefined to directly establish a side link relay loop while ignoring the wireless channel quality threshold. In the case where the service related to the relay service is an XR service, the first terminal in the embodiment of the present application can ignore one or more wireless channel quality threshold restrictions for the Uu port in the prior art, directly establish a side link relay loop, and provide XR services.

[0053] In another optional implementation manner of the embodiment of the present application, when the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; wherein the minimum value in the third threshold range is the first threshold, and the maximum value in the third threshold range is the second threshold; the minimum value in the fourth threshold range is the sum of the third threshold and the first offset value, and the maximum value in the fourth threshold range is the sum of the fourth threshold and the second offset value;

[0054] The minimum value in the second threshold range is the third threshold, and the maximum value in the second threshold range is the fourth threshold.

[0055] It should be noted that when the wireless channel quality is determined by RSRP, the second threshold range is the threshold limit in the prior art, that is, (RSRP threshold 1, RSRP threshold 2), where RSRP threshold 1 < RSRP threshold 2. That is to say, RSRP threshold 1 is equivalent to the third threshold, and RSRP threshold 2 is equivalent to the fourth threshold. The first threshold range is the newly configured threshold range, that is, the first threshold is different from the third threshold, and the second threshold is different from the fourth threshold. Thus, through the newly configured first threshold range by the network side device, it is possible to not consider the threshold limit in the prior art. As long as the newly configured threshold range is satisfied, a sidelink relay loop can be established.

[0056] In addition, when the first terminal is a remote terminal, the first threshold range is a range less than or equal to the fifth threshold, or the first threshold range is a range less than or equal to the sum of the sixth threshold and the third offset value. The second threshold range is a range less than or equal to the sixth threshold.

[0057] When the wireless channel quality is determined by RSRP, the second threshold range is the threshold limit in the prior art, that is, the sixth threshold is RSRP threshold 3. The first threshold range is the newly configured threshold range, that is, the fifth threshold is different from the sixth threshold. Thus, through the newly configured first threshold range by the network side device, it is possible to not consider the threshold limit in the prior art. As long as the newly configured threshold range is satisfied, a sidelink relay loop can be established.

[0058] In addition, the network side device in the embodiments of the present application can configure the cell or carrier information supporting XR relay service for the relay terminal or the remote terminal through a broadcast message or a dedicated signaling. When there is a relay requirement for XR services, the relay terminal or the remote terminal should preferentially select the sidelink time-frequency resources configured on these cells / carriers to transmit XR service data.

[0059] Optionally, the offset value in the embodiments of the present application can be set according to actual requirements and can be a positive value or a negative value.

[0060] In another alternative embodiment of the embodiments of the present application, the target carrier is a PC5 carrier. Based on this, in a specific application scenario, after establishing a sidelink relay loop, when the relay terminal or the XR device discovers that the current carrier of the PC5 interface does not meet the Uu interface radio channel quality threshold limit requirement for establishing a sidelink relay loop, before disconnecting the sidelink, it notifies the XR device or the relay terminal to switch to a carrier that meets the Uu interface radio channel quality threshold limit:

[0061] 1) When the XR device finds that it does not meet the requirements for accessing the relay terminal as a remote terminal, it notifies the relay terminal of this message and informs the PC5 carrier that can be used; the relay terminal confirms the PC5 carrier to be used; the relay terminal and the XR device activate the sidelink relay loop connection on the selected PC5 carrier.

[0062] 2) When the relay terminal finds that it does not meet the requirements for providing relay services as a relay terminal, it notifies the XR device of this message and informs it of the PC5 carrier that can be used; the XR device confirms the PC5 carrier to be used; the relay terminal and the XR device activate the sidelink relay loop connection on the selected PC5 carrier.

[0063] In addition, in another optional implementation of the embodiment of the present application, the target RAT in the embodiment of the present application includes at least one of Wireless Fidelity (WiFi) and Bluetooth. Based on this, in a specific application scenario, after the sidelink relay loop is established, when the current PC5 carrier of the relay terminal or XR device does not meet the Uu port wireless channel quality restriction, the wireless access technology can be switched in coordination with each other when the sidelink relay loop is disconnected:

[0064] 1) When the XR device finds that it does not meet the requirements for accessing the relay terminal as a remote terminal, it notifies the relay terminal to switch to establishing a return channel between the relay terminal and the XR device based on WiFi or Bluetooth access technology;

[0065] 2) When the relay terminal finds that it is not satisfied with providing XR service backhaul as a relay terminal, it notifies the remote terminal to switch to establishing a backhaul channel between the relay terminal and the XR device based on WiFi or Bluetooth access technology.

[0066] In another optional implementation of the embodiment of the present application, the first message in the embodiment of the present application may be a request message sent to a network side device (such as a service base station) to allow the establishment of a side link relay when the Uu port wireless channel quality of the relay terminal or XR terminal does not meet the Uu port wireless channel quality limit. After the network side device responds to the permission message, the Uu port wireless channel quality limit can be ignored. When the network responds with a rejection message, the relay UE or XR terminal cannot use the side link relay communication function. Among them, the request message can carry the wireless channel quality measurement value of its Uu port and the reason for requesting the relay service.

[0067] In addition, the first message in the embodiment of the present application may be that after the sidelink relay loop is established, when the relay terminal / XR device determines that it does not meet the pre-configured conditions as a relay UE or a remote UE, the wireless channel change is reported to the serving base station:

[0068] Reporting mode 1: For L3 remote terminals, the remote terminals can first report to the relay terminals, and then the relay terminals use their own Uu RRC messages to report to the base station;

[0069] Reporting method 2: For L2 remote terminals, in addition to using the same method as L3 remote terminals, they can also send reports to the base station through their own Uu RRC connection.

[0070] Among them, the serving base station determines whether to continue to allow the relay terminal / remote terminal to provide relay services for the XR service. For reporting mode 1, after receiving the report, the base station notifies the relay terminal whether to continue to provide relay services for the remote terminal. For reporting mode 2, after receiving the report, the base station can send a configuration message to the remote terminal and the relay terminal providing services for it, continue to maintain the relay service, stop providing relay services, switch to a carrier that supports XR relay services, or switch the remote terminal from the relay link to the Uu direct connection.

[0071] It should be noted that when the relay side link supports multiple carriers, the relay / remote terminal will give priority to using carriers that meet the wireless channel quality threshold limit when sending / receiving XR service data. When these carriers cannot provide sufficient XR service rates, carriers that meet the wireless channel quality threshold limit can be used to send / receive XR service data.

[0072] The above is an explanation of the present application based on the terminal side. The following is an explanation of the embodiments of the present application from the network side.

[0073] like Figure 4 As shown, the embodiment of the present application provides a relay service method based on a sidelink, the steps of the method comprising:

[0074] Step 402: The network side device receives a first message sent by the first terminal, wherein the first message is used to request to provide a service related to the relay service based on the sidelink relay loop;

[0075] Step 404: The network-side device sends a response message to the first terminal, wherein the response message is used to indicate whether to allow or deny the first terminal to provide services related to the relay service based on the sidelink relay loop.

[0076] Through the above steps 402 to 404, the network side device can determine whether to allow or deny the first terminal to provide services related to the relay service based on the side-link relay loop through the first message sent by the first terminal, without the first terminal considering the wireless channel quality threshold limit, thereby avoiding the problem of being unable to establish a side-link relay loop to the network side device when the wireless channel quality of the first terminal does not meet the existing agreed threshold.

[0077] In an optional implementation manner of the embodiment of the present application, the method steps of the embodiment of the present application further include at least one of the following:

[0078] Step 11: The network side device configures an offset value, wherein the offset value includes at least one of the following: a first offset value, a second offset value, and a third offset value;

[0079] Step 12: The network side device sends first indication information to the first terminal, wherein the first indication information is used to instruct the first terminal to ignore the wireless channel quality threshold;

[0080] Step 13: The network side device sends second indication information to the first terminal, where the second indication information is used to indicate a first threshold range that the wireless channel quality must meet.

[0081] Through the above steps 11 to 13, the network side device can configure a new wireless channel quality for the first terminal, and the wireless channel quality can be a completely new range relative to the prior art, or a range based on the existing threshold and the sum of the offset value. The network side device can also directly instruct the terminal to ignore the wireless channel quality threshold, thereby improving the existing relay mode and increasing the coverage of the relay service jointly provided by the relay terminal and the remote terminal.

[0082] It should be noted that the execution subject of the sidelink-based relay service method provided in the embodiment of the present application may be a sidelink-based relay service device, or a control module in the sidelink-based relay service device for executing the sidelink-based relay service method. In the embodiment of the present application, the sidelink-based relay service device is taken as an example to execute the sidelink-based relay service method to illustrate the sidelink-based relay service device provided in the embodiment of the present application.

[0083] like Figure 5 As shown, an embodiment of the present application provides a relay service device based on a side link, which is applied to a first terminal, including:

[0084] An execution module 52, configured to execute a first operation;

[0085] A providing module 54, configured to provide services related to the relay service based on the first operation;

[0086] The first operation includes at least one of the following:

[0087] Establishing a sidelink relay loop while ignoring a wireless channel quality threshold;

[0088] When the quality of the wireless channel of the first terminal meets the first threshold range, establishing a sidelink relay loop;

[0089] When the quality of the wireless channel of the first terminal does not meet the second threshold range, receiving an available target carrier notified by the second terminal or the network side device, and activating a sidelink relay loop on the target carrier;

[0090] When the quality of the wireless channel of the first terminal does not meet the second threshold range, switching to establish a backhaul channel based on the target RAT;

[0091] When the wireless channel quality of the first terminal does not meet the second threshold range, a first message is sent to the network side device, wherein the first message is used to request to provide services related to the relay service based on the sidelink relay loop.

[0092] Through the device of the embodiment of the present application, a sidelink relay loop can be established while ignoring the radio channel quality threshold, or a sidelink relay loop can be established when the radio channel quality meets the newly established first threshold range; it can also be that when the radio channel quality of the first terminal does not meet the second threshold range, the available target carrier notified by the second terminal is received, and the sidelink relay loop is activated on the target carrier; it can also be that when the radio channel quality does not meet the second threshold range, switching is performed to establish a backhaul channel based on the target RAT; or when the radio channel quality does not meet the second threshold range, a first message is sent to the network side device to request the sidelink relay loop to provide services related to the relay service. That is to say, through the method steps of the above embodiment of the present application, the problem that the sidelink relay loop cannot be established to the network side device when the radio channel quality of the first terminal does not meet the existing agreed threshold can be avoided, thereby improving the existing relay mode and increasing the coverage of the relay service provided jointly by the relay terminal and the remote terminal.

[0093] Optionally, in an embodiment of the present application, the operation of establishing a sidelink relay loop while ignoring a wireless channel quality threshold is triggered based on at least one of the following configurations: predefined, proprietary signaling, broadcast signaling, and sidelink signaling.

[0094] Optionally, when the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; wherein the minimum value in the third threshold range is the first threshold, and the maximum value in the third threshold range is the second threshold; the minimum value in the fourth threshold range is the sum of the third threshold and the first offset value, and the maximum value in the fourth threshold range is the sum of the fourth threshold and the second offset value;

[0095] The minimum value in the second threshold range is the third threshold, and the maximum value in the second threshold range is the fourth threshold.

[0096] Optionally, when the first terminal is a remote terminal, the first threshold range is a range less than or equal to the fifth threshold, or the first threshold range is a range less than or equal to the sum of the sixth threshold and the third offset value;

[0097] The second threshold range is a range that is less than or equal to the sixth threshold.

[0098] Optionally, the target carrier in the embodiment of the present application is a PC5 carrier.

[0099] Optionally, the target RAT in the embodiment of the present application includes at least one of WiFi and Bluetooth.

[0100] Optionally, the business related to the relay service in the embodiment of the present application includes extending and implementing the XR business.

[0101] The above is an explanation of the present application based on the terminal side. The following is an explanation of the embodiments of the present application from the network side.

[0102] like Figure 6 As shown, an embodiment of the present application provides a relay service device based on a side link, which is applied to a network side device, and the device includes:

[0103] The receiving module 62 is used to receive a first message sent by the first terminal, wherein the first message is used to request to provide a service related to the relay service based on the sidelink relay loop;

[0104] The first sending module 64 is used to send a response message to the first terminal, wherein the response message is used to indicate whether the first terminal is allowed or denied to provide services related to the relay service based on the sidelink relay loop.

[0105] Through the device of the embodiment of the present application, it is possible to determine whether to allow or deny the first terminal to provide services related to the relay service based on the side-link relay loop through a first message sent by the first terminal, without the first terminal having to consider the wireless channel quality threshold limit, thereby avoiding the problem of being unable to establish a side-link relay loop to the network side device when the wireless channel quality of the first terminal does not meet the existing agreed threshold.

[0106] Optionally, the device in the embodiment of the present application further includes at least one of the following:

[0107] A configuration module, configured to configure an offset value, wherein the offset value includes at least one of the following: a first offset value, a second offset value, and a third offset value;

[0108] A second sending module, used to send first indication information to the first terminal, wherein the first indication information is used to instruct the first terminal to ignore the wireless channel quality threshold;

[0109] The third sending module is used to send second indication information to the first terminal, wherein the second indication information is used to indicate a first threshold range that the wireless channel quality needs to meet.

[0110] Through the above module, a new wireless channel quality can be configured for the first terminal, and the wireless channel quality can be a completely new range relative to the prior art, or a range based on the existing threshold and the sum of the offset value. The network side device can also directly instruct the terminal to ignore the wireless channel quality threshold, thereby improving the existing relay mode and increasing the coverage of the relay service jointly provided by the relay terminal and the remote terminal.

[0111] The sidelink-based relay service device in the embodiment of the present application may be a device, a device or an electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0112] The relay service device based on the side link provided in the embodiment of the present application can realize Figure 3 to Figure 4 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0113] Optional, such as Figure 7 As shown, the embodiment of the present application also provides a communication device 700, including a processor 701, a memory 702, and a program or instruction stored in the memory 702 and executable on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction is executed by the processor 701 to implement the various processes of the above-mentioned relay service method embodiment based on the side link, and can achieve the same technical effect. When the communication device 700 is a network side device, the program or instruction is executed by the processor 701 to implement the various processes of the above-mentioned relay service method embodiment based on the side link, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0114] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the processor is used to perform a first operation, and the communication interface is used to provide services related to relay services based on the first operation. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0115] The terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and at least some of the components of a processor 110.

[0116] Those skilled in the art will appreciate that the terminal 100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0117] It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0118] In the embodiment of the present application, the radio frequency unit 101 receives downlink data from the network side device and sends it to the processor 110 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0119] The memory 109 can be used to store software programs or instructions and various data. The memory 109 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0120] The processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 110.

[0121] The processor 110 is configured to execute a first operation and provide a service related to the relay service based on the first operation;

[0122] The first operation includes at least one of the following:

[0123] Establishing a sidelink relay loop while ignoring a wireless channel quality threshold;

[0124] When the quality of the wireless channel of the first terminal satisfies a first threshold range, establishing the sidelink relay loop;

[0125] When the quality of the wireless channel of the first terminal does not meet the second threshold range, receiving an available target carrier notified by the second terminal, and activating the sidelink relay loop on the target carrier;

[0126] When the quality of the wireless channel of the first terminal does not meet the second threshold range, switching to establish a backhaul channel based on the target RAT;

[0127] When the wireless channel quality of the first terminal does not meet the second threshold range, a first message is sent to a network side device, wherein the first message is used to request the service related to the relay service to be provided based on the sidelink relay loop.

[0128] Through the terminal of the embodiment of the present application, a sidelink relay loop can be established while ignoring the radio channel quality threshold, or a sidelink relay loop can be established when the radio channel quality of the first terminal meets the newly established first threshold range; it can also be that when the radio channel quality of the first terminal does not meet the second threshold range, the available target carrier notified by the second terminal is received, and the sidelink relay loop is activated on the target carrier; it can also be that when the radio channel quality of the first terminal does not meet the second threshold range, switching is performed to establish a backhaul channel based on the target RAT; or when the radio channel quality of the first terminal does not meet the second threshold range, a first message is sent to the network side device to request the sidelink relay loop to provide services related to the relay service. That is to say, through the method steps of the above embodiment of the present application, the problem that the sidelink relay loop cannot be established to the network side device when the radio channel quality of the first terminal does not meet the existing agreed threshold can be avoided, thereby improving the existing relay mode and increasing the coverage of the relay service provided jointly by the relay terminal and the remote terminal.

[0129] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the processor is used to indicate whether the first terminal is allowed or denied to provide the service related to the relay service based on the side link relay loop, and the communication interface is used to receive a first message sent by the first terminal, and to send a response message to the first terminal. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment, and can achieve the same technical effect.

[0130] Specifically, the embodiment of the present application also provides a network side device. Fig. 9 As shown, the network device 900 includes: an antenna 91, a radio frequency device 92, and a baseband device 93. The antenna 91 is connected to the radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92. The radio frequency device 92 processes the received information and sends it out through the antenna 91.

[0131] The frequency band processing device may be located in a baseband device 93 . The method performed by the network-side device in the above embodiment may be implemented in the baseband device 93 . The baseband device 93 includes a processor 94 and a memory 95 .

[0132] The baseband device 93 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig. 9As shown, one of the chips is, for example, a processor 94, which is connected to a memory 95 to call a program in the memory 95 to execute the network device operations shown in the above method embodiment.

[0133] The baseband device 93 may further include a network interface 96 for exchanging information with the radio frequency device 92 . The interface may be, for example, a common public radio interface (CPRI).

[0134] Specifically, the network side device of the embodiment of the present invention further includes: instructions or programs stored in the memory 95 and executable on the processor 94, and the processor 94 calls the instructions or programs in the memory 95 to execute Figure 4 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0135] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned sidelink-based relay service method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0136] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0137] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned sidelink-based relay service method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0138] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0139] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0140] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0141] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A relay service method based on a sidelink, characterized in that: include: The first terminal performs a first operation; The first terminal provides a service related to the relay service based on the first operation; The first operation includes at least one of the following: Establishing a sidelink relay loop while ignoring a wireless channel quality threshold; When the quality of the wireless channel of the first terminal satisfies a first threshold range, establishing the sidelink relay loop; When the quality of the wireless channel of the first terminal does not meet the second threshold range, receiving an available target carrier notified by the second terminal or the network side device, and activating the sidelink relay loop on the target carrier; When the quality of the wireless channel of the first terminal does not meet the second threshold range, switching to establish a backhaul channel based on the target radio access technology RAT; When the wireless channel quality of the first terminal does not meet the second threshold range, a first message is sent to a network side device, wherein the first message is used to request the service related to the relay service to be provided based on the sidelink relay loop.

2. The method according to claim 1, characterized in that The configuration method is based on at least one of the following to trigger the operation of establishing a sidelink relay loop while ignoring the wireless channel quality threshold: predefined, dedicated signaling, broadcast signaling, and sidelink signaling.

3. The method according to claim 1, characterized in that In the case where the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; wherein the minimum value in the third threshold range is the first threshold, and the maximum value in the third threshold range is the second threshold; the minimum value in the fourth threshold range is the sum of the third threshold and the first offset value, and the maximum value in the fourth threshold range is the sum of the fourth threshold and the second offset value; The minimum value in the second threshold range is the third threshold, and the maximum value in the second threshold range is the fourth threshold.

4. The method according to claim 1 or 3, characterized in that: In the case where the first terminal is a remote terminal, the first threshold range is a range less than or equal to a fifth threshold, or the first threshold range is a range less than or equal to a sum of a sixth threshold and a third offset value; The second threshold range is a range that is less than or equal to the sixth threshold.

5. The method according to claim 1, characterized in that The target carrier is a PC5 carrier.

6. The method according to claim 1, characterized in that The target RAT includes at least one of Wireless Fidelity (WiFi) and Bluetooth.

7. The method according to claim 1, characterized in that The business related to the relay service includes the expansion and implementation of the XR business.

8. A relay service method based on a sidelink, characterized in that: include: The network side device receives a first message sent by the first terminal, wherein the first message is used to request that a service related to the relay service be provided based on the sidelink relay loop, and the first message is a message sent by the first terminal when the quality of the wireless channel of the first terminal does not meet the second threshold range; The network-side device sends a response message to the first terminal, wherein the response message is used to indicate whether the first terminal is allowed or denied to provide the service related to the relay service based on the sidelink relay loop.

9. The method according to claim 8, characterized in that The method further comprises at least one of the following: The network side device configures an offset value, wherein the offset value includes at least one of the following: a first offset value, a second offset value, and a third offset value; The network side device sends first indication information to the first terminal, wherein the first indication information is used to instruct the first terminal to ignore the wireless channel quality threshold; The network side device sends second indication information to the first terminal, wherein the second indication information is used to indicate a first threshold range that the wireless channel quality must meet.

10. A relay service device based on a sidelink, applied to a first terminal, characterized in that: include: An execution module, configured to execute a first operation; providing a module, configured to provide services related to the relay service based on the first operation; The first operation includes at least one of the following: Establishing a sidelink relay loop while ignoring a wireless channel quality threshold; When the quality of the wireless channel of the first terminal satisfies a first threshold range, establishing the sidelink relay loop; When the quality of the wireless channel of the first terminal does not meet the second threshold range, receiving an available target carrier notified by the second terminal or the network side device, and activating the sidelink relay loop on the target carrier; When the quality of the wireless channel of the first terminal does not meet the second threshold range, switching to establish a backhaul channel based on the target RAT; When the wireless channel quality of the first terminal does not meet the second threshold range, a first message is sent to a network side device, wherein the first message is used to request the service related to the relay service to be provided based on the sidelink relay loop.

11. The device according to claim 10, characterized in that The configuration method is based on at least one of the following to trigger the operation of establishing a sidelink relay loop while ignoring the wireless channel quality threshold: predefined, dedicated signaling, broadcast signaling, and sidelink signaling.

12. The device according to claim 10, characterized in that In the case where the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; wherein the minimum value in the third threshold range is the first threshold, and the maximum value in the third threshold range is the second threshold; the minimum value in the fourth threshold range is the sum of the third threshold and the first offset value, and the maximum value in the fourth threshold range is the sum of the fourth threshold and the second offset value; The minimum value in the second threshold range is the third threshold, and the maximum value in the second threshold range is the fourth threshold.

13. The device according to claim 10 or 12, characterized in that In the case where the first terminal is a remote terminal, the first threshold range is a range less than or equal to a fifth threshold, or the first threshold range is a range less than or equal to a sum of a sixth threshold and a third offset value; The second threshold range is a range that is less than or equal to the sixth threshold.

14. The device according to claim 10, characterized in that The target carrier is a PC5 carrier.

15. The device according to claim 10, characterized in that The target RAT includes at least one of Wireless Fidelity (WiFi) and Bluetooth.

16. The device according to claim 10, characterized in that The business related to the relay service includes the expansion and implementation of the XR business.

17. A relay service device based on a side link, applied to a network side device, characterized in that: include: A receiving module, configured to receive a first message sent by a first terminal, wherein the first message is used to request that a service related to a relay service be provided based on the sidelink relay loop, and the first message is a message sent by the first terminal when the quality of a wireless channel of the first terminal does not meet a second threshold range; The first sending module is used to send a response message to the first terminal, wherein the response message is used to indicate whether the first terminal is allowed or denied to provide the service related to the relay service based on the sidelink relay loop.

18. The device according to claim 17, characterized in that The device further comprises at least one of the following: A configuration module, configured to configure an offset value, wherein the offset value includes at least one of the following: a first offset value, a second offset value, and a third offset value; A second sending module, configured to send first indication information to the first terminal, wherein the first indication information is used to instruct the first terminal to ignore a wireless channel quality threshold; The third sending module is used to send second indication information to the first terminal, wherein the second indication information is used to indicate a first threshold range that the wireless channel quality needs to meet.

19. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction implements the method steps as claimed in any one of claims 1 to 7 when executed by the processor.

20. A network side device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction implements the method steps as claimed in claim 8 or 9 when executed by the processor.

21. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the method steps according to any one of claims 1 to 7 are implemented, or the method steps according to claim 8 or 9 are implemented.

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