CN115474255A - Relay service method and device based on sidelink, terminal and network side equipment - Google Patents
Relay service method and device based on sidelink, terminal and network side equipment Download PDFInfo
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- H—ELECTRICITY
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Abstract
The application discloses a relay service method and device based on a sidelink, a terminal and a network side device, wherein the method comprises the following steps: the first terminal executes 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: establishing a side link relay loop under the condition of neglecting a wireless channel quality threshold; under the condition that the wireless channel quality of the first terminal meets a first threshold range, a side link relay loop is established; under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating a sidelink relay loop on the target carrier; under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, switching to the establishment of a backhaul channel based on the target RAT; and under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, sending a first message to the network side equipment.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a relay service method and device based on a sidelink, a terminal and network side equipment.
Background
When the existing wireless link relay terminal and the remote terminal establish a side link relay loop to a network side device, the wireless channel quality of a Uu interface, such as Reference Signal Receiving Power (RSRP), is required to meet a preset threshold requirement. In case the threshold requirement cannot be met, a relay loop to a sidelink of the network side device cannot be established. However, some XR terminals (e.g., HMD devices) require processing of the auxiliary video signal of the mobile phone terminal to complete the Extended reality (XR), and when the side link relay function of the mobile phone terminal or XR terminal is limited by the network threshold and cannot be used, the XR service based on the cooperation of the side link relay loop and the mobile phone terminal and the XR terminal cannot be provided.
Disclosure of Invention
The embodiment of the application provides a method and a device for a relay service based on a sidelink, a terminal and a network side device, which can solve the problem that a sidelink relay loop to the network side device cannot be established under the condition that the quality of a wireless channel of the terminal does not meet the existing agreed threshold.
In a first aspect, a sidelink-based relay service method is provided, including: the first terminal executes a first operation; the first terminal provides a service related to a relay service based on the first operation; wherein the first operation comprises at least one of: establishing a side link relay loop under the condition of neglecting a wireless channel quality threshold; under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing the sidelink relay loop; under the condition that the wireless channel quality of the first terminal does not meet a second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating the sidelink relay loop on the target carrier; 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; and sending a first message to a network side device under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, wherein the first message is used for requesting to provide the service related to the relay service based on the sidelink relay loop.
In a second aspect, a sidelink-based relay service method is provided, including: the method comprises the steps that network side equipment receives a first message sent by a first terminal, wherein the first message is used for requesting to provide services related to relay services based on a sidelink relay loop; and the network side equipment sends a response message to the first terminal, wherein the response message is used for indicating that the first terminal is allowed or refused to provide the service related to the relay service based on the sidelink relay loop.
In a third aspect, a sidelink-based relay service apparatus is provided, which is applied to a first terminal, and includes: the execution module is used for executing a first operation; a providing module for providing a service related to a relay service based on the first operation; wherein the first operation comprises at least one of: establishing a side link relay loop under the condition of neglecting a wireless channel quality threshold; under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing the sidelink relay loop; under the condition that the wireless channel quality of the first terminal does not meet a second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating the sidelink relay loop on the target carrier; under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, switching to the establishment of a backhaul channel based on a target RAT; and sending a first message to a network side device under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, wherein the first message is used for requesting to provide the service related to the relay service based on the sidelink relay loop.
In a fourth aspect, a sidelink-based relay service apparatus is provided, and is applied to a network side device, and includes: a receiving module, configured to receive a first message sent by a first terminal, where the first message is used to request to provide a service related to a relay service based on the sidelink relay loop; a first sending module, configured to send a response message to the first terminal, where the response message is used to indicate that the first terminal is allowed or denied to provide the service related to the relay service based on the sidelink relay loop.
In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.
In a sixth aspect, a terminal is provided, which includes a processor configured to perform a first operation and a communication interface configured to provide a service related to a relay service based on the first operation.
In a seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, and when executed by the processor, the program or the instruction implements the steps of the method according to the first aspect.
In an eighth aspect, a network side device is provided, including a processor and a communication interface, where the processor is configured to instruct the first terminal to be allowed or denied to provide the service related to the relay service based on the sidelink relay loop, and the communication interface is configured to receive a first message sent by the first terminal, and is configured to send a response message to the first terminal.
In a ninth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method of the first aspect or the steps of the method of the second aspect.
In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to perform the method steps according to the first aspect, or to perform the method steps according to the second aspect.
In an eleventh aspect, there is provided a computer program/program product stored on a non-volatile storage medium, the program/program product being executable by at least one processor to perform the method steps as described in the first aspect or to perform the method steps as described in the second aspect.
In the embodiment of the present application, the first terminal may establish the sidelink relay loop while ignoring the wireless channel quality threshold, or may establish the sidelink relay loop while the wireless channel quality of the first terminal satisfies a newly established first threshold range; or receiving an available target carrier notified by the second terminal and activating a sidelink relay loop on the target carrier under the condition that the wireless channel quality of the first terminal does not meet the second threshold range; or switching to the backhaul channel establishment based on the target RAT when the wireless channel quality of the first terminal does not satisfy the second threshold range; or under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, sending a first message to the network side equipment to request the sidelink relay loop to provide services related to the relay service. That is to say, through the method steps of the embodiment of the present application, the problem that a sidelink relay loop to a network side device cannot be established under the condition that the quality of the wireless channel of the first terminal does not meet the existing agreed threshold can be avoided, so that the existing relay manner is improved, and the coverage of the relay service provided by the relay terminal and the remote terminal in a combined manner is increased.
Drawings
Fig. 1 is a schematic diagram of a network topology for providing XR service presentation by combining a mobile phone terminal and an XR terminal;
FIG. 2 illustrates a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 3 is a flowchart of a sidelink-based relay service method according to an embodiment of the present application;
fig. 4 is a second flowchart of a sidelink-based relay service method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a sidelink-based relay service apparatus according to an embodiment of the present application;
fig. 6 is a second schematic structural diagram of a sidelink-based relay service apparatus according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a network-side device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of protection of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally used herein in a generic sense to distinguish one element from another, and not necessarily from another element, such as a first element which may be one or more than one. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-a) systems, 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 (Single-carrier Frequency-Division Multiple Access (Single-carrier) and the likess, SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) th Generation, 6G) communication system.
Fig. 2 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an enodeb, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive 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, and 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.
First, relevant terms in the embodiments of the present application are explained.
1. XR terminal
As a typical XR terminal, a Head Mounted Device (HMD) is a Device that is worn on the Head for displaying XR video. The design of HMDs is constrained by a number of factors:
weight limitation: the weight of the HMD needs to be controlled to meet the requirement that the HMD can be comfortably worn on the head of a human for a long time, and the HMD needs to be low in mass;
low operation heat generation: the head is uncomfortable due to high heat generation, and the heat dissipation effect of the head is poor;
due to the above limitations, the HMD is inconvenient to install a large-capacity battery and a high-computation-capacity video signal processing circuit. To provide XR services, the first approach is: processing video signal compression/decompression by means of an edge computing server deployed in the vicinity of a wireless transmission node (base station) of a wireless network, while the HMD directly receives the already decompressed video signal from the wireless network for display; or sending the collected video signals to the wireless network node, compressing the video signals by an edge computing server near the wireless network node, and then sending out the compressed video signals. The second mode is as follows: by means of the strong data transceiving capacity and the signal processing capacity of the mobile phone terminal, the mobile phone terminal receives video data from the wireless network node firstly, and the mobile phone terminal decompresses the video data and then sends the decompressed video data to the HMD for display; or the HMD sends the acquired video data to the mobile phone terminal, and the mobile phone terminal compresses the video data and sends the compressed video data to the wireless network node.
In using the second approach described above, the network topology is shown in fig. 2. In this case, the network side device (base station) may not codec the video stream data, and the UE provides XR service to the end user in conjunction with the HMD. The strong wireless communication function of the mobile phone terminal is utilized, and the processing requirement on the XR terminal can be reduced.
When a sidelink relay technology is used, a mobile phone terminal and an XR terminal jointly provide XR service, according to the current understanding, the quality of an air interface wireless channel of the mobile phone terminal (relay terminal) needs to be within a range (RSRP threshold 1 and RSRP threshold 2) set by a network, wherein the RSRP threshold 1 is restricted to the RSRP threshold 2, and when the requirement is not met, a relay function cannot be activated; this threshold is to allow the relay UE to have sufficient Uu port capacity to provide wireless backhaul while controlling interference to the base station.
And the air interface wireless quality of the XR terminal (remote terminal) needs to be lower than the RSRP threshold 3. When this requirement is not satisfied, the remote UE cannot access the network through the relay UE. The threshold setting enables the remote UE to access the network through the relay terminal only when the quality of the wireless link is poor, and the Uu port direct connection is preferentially used for communication at other times.
The method for serving a relay based on a sidelink according to the embodiments of the present application is described in detail below with reference to the accompanying drawings.
As shown in fig. 3, an embodiment of the present application provides a sidelink-based relay service method, where the method includes:
wherein the first operation comprises at least one of:
establishing a side link relay loop under the condition of neglecting a wireless channel quality threshold;
under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing a side link relay loop;
under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating a sidelink relay loop on the target carrier;
under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, switching to the establishment of a return channel based on a target Radio Access Technology (RAT);
and under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, sending a first message to the network side equipment, wherein the first message is used for requesting to provide services related to the relay service based on the sidelink relay loop.
It should be noted that the first terminal in the embodiment of the present application may be a relay terminal or a remote terminal. In addition, the second threshold range in the embodiment of the present application may refer to a threshold range for the wireless channel quality in the prior art, that is, in the case that the first terminal is a relay terminal, the second threshold range may be (RSRP threshold 1, RSRP threshold 2), where RSRP threshold 1 is restricted to RSRP threshold 2; and in case the first terminal is a remote terminal, the second threshold range may refer to a range below the RSRP threshold of 3. The first threshold range in this embodiment may be a wireless channel quality threshold range newly configured for the first terminal by the network side device through broadcast signaling or dedicated signaling, that is, a range different from the first threshold range.
That is, through the above steps 302 and 304, the first terminal may establish the sidelink relay loop while ignoring the wireless channel quality threshold, or may establish the sidelink relay loop when the wireless channel quality of the first terminal satisfies the newly established first threshold range; or receiving an available target carrier notified by the second terminal and activating a sidelink relay loop on the target carrier under the condition that the wireless channel quality of the first terminal does not meet the second threshold range; or under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, switching to the establishment of a backhaul channel based on the target RAT; or under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, sending a first message to the network side equipment to request the sidelink trunking loop to provide services related to the relay service. That is to say, through the method steps of the embodiment of the present application, the problem that a sidelink relay loop to a network side device cannot be established under the condition that the quality of the wireless channel of the first terminal does not satisfy the existing agreed threshold can be avoided, so that the existing relay manner is improved, and the coverage of the relay service provided by the relay terminal and the remote terminal in a combined manner is increased.
In addition, it should be further noted that, in the embodiment of the present application, the service related to the relay service may refer to a service that needs to be provided by a mobile phone in a coordinated manner, for example, an XR service. In this regard, the remote terminal in embodiments of the present application may be an XR device.
In an optional implementation manner of the embodiment of the present application, the operation of establishing the sidelink relay loop while ignoring the wireless channel quality threshold may be triggered to be performed based on a configuration manner of at least one of the following: predefined, proprietary signaling, broadcast signaling, sidelink signaling.
That is, the network side device may indicate to the first terminal based on the proprietary signaling, the broadcast signaling, or the sidelink signaling that the sidelink relay loop may be established while ignoring the wireless channel quality threshold, or predefine configure that the first terminal may directly establish the sidelink relay loop while ignoring the wireless channel quality threshold. In the case that the service related to the relay service is the XR service, the first terminal in this embodiment may directly establish the sidelink relay loop to provide the XR service, regardless of one or more radio channel quality threshold restrictions for the Uu port in the prior art.
In another optional implementation manner of the embodiment of the present application, in a case that the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; the minimum value in the third threshold value range is a first threshold, and the maximum value in the third threshold value range is a 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;
and the minimum value in the second threshold range is a third threshold, and the maximum value in the second threshold range is a fourth threshold.
It should be noted that, in the case that the radio channel quality is determined by RSRP, the second threshold range is the threshold limit in the prior art, i.e., (RSRP threshold 1, RSRP threshold 2), where RSRP threshold 1 and RSRP threshold 2, i.e., 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 range of newly configured thresholds, i.e. the first threshold is different from the third threshold, and the second threshold is different from the fourth threshold. Therefore, through the first threshold range of the new configuration of the network side device, the threshold limit in the prior art does not need to be considered, and the sidelink relay loop can be established as long as the threshold range of the new configuration is met.
In addition, in the case where the first terminal is a far-end terminal, the first threshold range is a range smaller than or equal to a fifth threshold, or the first threshold range is a range smaller than or equal to a sum of a sixth threshold and a third offset value. The second threshold range is a range less than or equal to the sixth threshold.
In the case that the radio channel quality is determined by RSRP, the second threshold range is a threshold limit in the prior art, i.e. the sixth threshold is RSRP threshold 3. The first threshold range is the range of newly configured thresholds, i.e. the fifth threshold is different from the sixth threshold. Therefore, through the first threshold range of the new configuration of the network side device, the threshold limit in the prior art does not need to be considered, and as long as the threshold range of the new configuration is met, the sidelink relay loop can be established.
In addition, the network side device in this embodiment may configure, through a broadcast message or a dedicated signaling, cell or carrier information that the relay terminal or the remote terminal supports the XR relay service, and when there is an XR service relay requirement, the relay terminal or the remote terminal should preferentially select sidelink time-frequency resources configured on these cells/carriers to transmit XR service data.
Optionally, the offset value in this embodiment may be set according to actual requirements, and may be a positive value or a negative value.
In another optional implementation manner of the embodiment of the present application, the target carrier in the embodiment of the present application is a PC5 carrier. Based on this, in a specific application scenario, after the sidelink relay loop is established, when the relay terminal or the XR device finds that the carrier of the current PC5 interface does not satisfy the Uu port wireless channel quality threshold limit requirement for establishing the sidelink relay loop, the XR device or the relay terminal is notified to switch to the carrier that satisfies the Uu port wireless channel quality threshold limit before disconnecting the sidelink:
1) When finding that the XR equipment does not meet the requirement of accessing the relay terminal as a remote terminal, the XR equipment informs the relay terminal of the message and simultaneously informs a PC5 carrier which can be used; the relay terminal confirms the PC5 port carrier used; the relay terminal and the XR equipment activate the sidelink trunk connection on the selected PC5 port carrier.
2) When the relay terminal finds that the relay terminal does not meet the requirement of providing the relay service as the relay terminal, the XR equipment is informed of the message, and meanwhile, the PC5 carrier which can be used is informed; confirming the used PC5 port carrier by XR equipment; the relay terminal and the XR equipment activate the side link relay loop connection on the selected PC5 port carrier.
In addition, in another optional implementation manner 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 relay terminal or the current PC5 carrier of the XR device does not satisfy the Uu port wireless channel quality limit, the wireless access technologies can be switched in coordination with each other when the sidelink relay loop is disconnected:
1) When the XR equipment finds that the XR equipment does not meet the requirement of accessing the relay terminal as a remote terminal, the relay terminal is informed to be switched to a return channel established between the relay terminal and the XR equipment based on WiFi or Bluetooth access technology;
2) When the relay terminal does not provide XR service backhaul as the relay terminal, the remote terminal is informed to switch to establish backhaul channel between the relay terminal and XR equipment based on WiFi or Bluetooth access technology.
In another optional implementation manner of this embodiment, the first message in this embodiment may be that, when the quality of the Uu port wireless channel of the relay terminal or the XR terminal does not satisfy the Uu port wireless channel quality restriction, a request message for permitting establishment of the sidelink relay is sent to a network side device (e.g., a serving base station), after the network side device responds to the permission message, the Uu port wireless channel quality restriction may be ignored, and when the network responds to the rejection message, the relay UE or the XR terminal cannot use the sidelink relay communication function. The request message may carry the radio channel quality measurement value of the Uu port and the reason for requesting the relay service.
Furthermore, the first message in this embodiment may be to report the change of radio channel to the serving base station after establishing the sidelink relay loop when the rs/XR device determines that it does not satisfy the preconfigured conditions as a relay UE or a remote UE:
in the reporting mode 1, for the L3 remote terminal, the remote terminal may report to the relay terminal first, and then the relay terminal reports to the base station using its Uu RRC message;
report mode 2: for the L2 remote terminal, the report may be sent to the base station through its Uu RRC connection, except that the same manner as for the L3 remote terminal may be used.
Wherein, the serving base station determines whether to continue the relay service of the XR service permitted to the relay terminal/remote terminal. For the report mode 1, after receiving the report, the base station notifies the relay terminal whether to continue providing the relay service for the remote terminal. For the reporting mode 2, after receiving the report, the base station may send a configuration message to the remote terminal and the relay terminal providing service for the remote terminal, continue to maintain the relay service, stop providing the relay service, switch to the carrier supporting the XR relay service, or switch the remote terminal from the relay link to Uu direct connection.
It should be noted that when the relay sidelink supports multiple carriers, the relay/remote terminal preferably uses the carriers meeting the radio channel quality threshold limit when transmitting/receiving XR service data, and only when these carriers do not provide enough XR service rate, the carriers meeting the radio channel quality threshold limit can be used to transmit/receive XR service data.
The present application is explained based on the terminal side, and the embodiments of the present application are explained from the network side.
As shown in fig. 4, an embodiment of the present application provides a method for a sidelink-based relay service, where the method includes:
Through the above steps 402 to 404, the network side device may determine, through the first message sent by the first terminal, to allow or reject the first terminal to provide the service related to the relay service based on the sidelink relay loop, without the first terminal considering the wireless channel quality threshold limit, so as to avoid a problem that the sidelink relay loop to the network side device cannot be established under the condition that the wireless channel quality of the first terminal does not satisfy the existing agreed threshold.
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:
step 13, the network side device sends second indication information to the first terminal, wherein the second indication information is used for indicating a first threshold range to be met by the wireless channel quality.
Through the above steps 11 to 13, the network side device may configure a new wireless channel quality to the first terminal, where the wireless channel quality may be a completely new range relative to the prior art, or may be a range of a sum of the existing threshold and the offset value. The network side equipment can also directly instruct the terminal to ignore the wireless channel quality threshold, thereby improving the existing relay mode and enhancing the coverage of the relay service provided by the relay terminal and the remote terminal in a combined manner.
It should be noted that, in the sidelink-based relay service method provided in the embodiment of the present application, the execution subject 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, a method for a relay service apparatus based on a sidelink to perform a relay service based on a sidelink is taken as an example, and the relay service apparatus based on a sidelink provided in the embodiment of the present application is described.
As shown in fig. 5, an embodiment of the present application provides a sidelink-based relay service apparatus, which is applied to a first terminal, and includes:
an execution module 52 for executing a first operation;
a providing module 54 for providing a service related to the relay service based on the first operation;
wherein the first operation comprises at least one of:
establishing a side link relay loop under the condition of ignoring a wireless channel quality threshold;
under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing a side link relay loop;
under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating a sidelink relay loop on the target carrier;
under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, switching to the establishment of a backhaul channel based on the target RAT;
and under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, sending a first message to the network side equipment, wherein the first message is used for requesting to provide services related to the relay service based on the sidelink relay loop.
By the device of the embodiment of the application, the sidelink relay loop can be established under the condition of ignoring the wireless channel quality threshold, and the sidelink relay loop can also be established under the condition that the wireless channel quality meets the newly established first threshold range; or receiving an available target carrier notified by the second terminal and activating a sidelink relay loop on the target carrier under the condition that the wireless channel quality of the first terminal does not meet the second threshold range; or under the condition that the quality of the wireless channel does not meet the second threshold range, switching to the establishment of a backhaul channel based on the target RAT; or under the condition that the wireless channel quality does not meet the second threshold range, sending a first message to the network side equipment to request the sidelink trunking loop to provide services related to the trunking service. That is to say, through the method steps of the embodiment of the present application, the problem that a sidelink relay loop to a network side device cannot be established under the condition that the quality of the wireless channel of the first terminal does not meet the existing agreed threshold can be avoided, so that the existing relay manner is improved, and the coverage of the relay service provided by the relay terminal and the remote terminal in a combined manner is increased.
Optionally, in this embodiment of the present application, the operation of establishing the sidelink relay loop while ignoring the wireless channel quality threshold is triggered and performed based on a configuration manner of at least one of the following: predefined, proprietary signaling, broadcast signaling, sidelink signaling.
Optionally, in a case that 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 value range is a first threshold, and the maximum value in the third threshold value range is a 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 a third threshold, and the maximum value in the second threshold range is a fourth threshold.
Optionally, in a case that the first terminal is a far-end terminal, the first threshold range is a range smaller than or equal to a fifth threshold, or the first threshold range is a range smaller than or equal to a sum of a sixth threshold and a third offset value;
the second threshold range is a range less than or equal to the sixth threshold.
Optionally, the target carrier in this embodiment is a PC5 carrier.
Optionally, the target RAT in the embodiment of the present application includes at least one of WiFi and bluetooth.
Optionally, the service related to the relay service in this embodiment of the present application includes an extended implementation XR service.
The present application is explained based on the terminal side, and the embodiments of the present application are explained from the network side.
As shown in fig. 6, an embodiment of the present application provides a sidelink-based relay service apparatus, which is applied to a network side device, and the apparatus includes:
a receiving module 62, configured to receive a first message sent by a first terminal, where the first message is used to request to provide a service related to a relay service based on a sidelink relay loop;
a first sending module 64, configured to send a response message to the first terminal, where the response message is used to indicate that the first terminal is allowed or denied to provide the services related to the relay service based on the sidelink relay loop.
By the device in the embodiment of the application, the first message sent by the first terminal can be used for determining to allow or refuse the first terminal to provide the service related to the relay service based on the sidelink relay loop without considering the limitation of the wireless channel quality threshold of the first terminal, so that the problem that the sidelink relay loop to the network side equipment cannot be established under the condition that the wireless channel quality of the first terminal does not meet the existing appointed threshold can be avoided.
Optionally, the apparatus in the embodiment of the present application further includes at least one of:
a configuration module to configure an offset value, wherein the offset value comprises at least one of: a first offset value, a second offset value, a third offset value;
a second sending module, configured to send first indication information to the first terminal, where the first indication information is used to indicate the first terminal to ignore the wireless channel quality threshold;
and a third sending module, configured to send second indication information to the first terminal, where the second indication information is used to indicate a first threshold range that is to be satisfied by the quality of the wireless channel.
Through the above modules, the first terminal may be configured with a new radio channel quality, which may be a completely new range relative to the prior art, or a range that is the sum of the existing threshold and the offset value. The network side equipment can also directly instruct the terminal to ignore the wireless channel quality threshold, thereby improving the existing relay mode and enhancing the coverage of the relay service provided by the relay terminal and the remote terminal in a combined way.
The sidelink-based relay service device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.
The relay service device based on the sidelink provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 3 to fig. 4, and achieve the same technical effect, and is not described herein again to avoid repetition.
Optionally, as shown in fig. 7, an embodiment of the present application further provides a communication device 700, which includes a processor 701, a memory 702, and a program or an instruction stored on the memory 702 and executable on the processor 701, for example, when the communication device 700 is a terminal, the program or the instruction is executed by the processor 701 to implement each process of the embodiment of the sidelink-based relay service method, and the same technical effect can be achieved. When the communication device 700 is a network-side device, the program or the instruction is executed by the processor 701 to implement each process of the above-mentioned embodiment of the sidelink-based relay service method, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.
The embodiment of the present application further provides a terminal, which includes a processor and a communication interface, where the processor is configured to execute a first operation, and the communication interface is configured to provide a service related to a relay service based on the first operation. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.
The terminal 100 includes, but is not limited to: at least part of the radio frequency unit 101, the network module 102, the audio output unit 103, the input unit 104, the sensor 105, the display unit 106, the user input unit 107, the interface unit 108, the memory 109, and the processor 110, etc.
Those skilled in the art will appreciate that the terminal 100 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or may combine some components, or may be arranged differently, and thus, the description thereof is omitted.
It should be understood that, in the embodiment of the present application, the input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics Processing Unit 1041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing 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, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In the embodiment of the present application, the radio frequency unit 101 receives downlink data from a network side device, and then processes the downlink data to the processor 110; in addition, the uplink data is sent to the network side equipment. Typically, 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, and the like.
The memory 109 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 109 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
Wherein, the processor 110 is configured to perform a first operation and provide a service related to a relay service based on the first operation;
wherein the first operation comprises at least one of:
establishing a side link relay loop under the condition of ignoring a wireless channel quality threshold;
under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing the sidelink relay loop;
under the condition that the wireless channel quality of the first terminal does not meet a second threshold range, receiving an available target carrier notified by a second terminal, and activating the sidelink relay loop on the target carrier;
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;
and 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 for requesting to provide the service related to the relay service based on the sidelink relay loop.
Through the terminal of the embodiment of the application, the sidelink relay loop can be established under the condition of neglecting the wireless channel quality threshold, and the sidelink relay loop can also be established under the condition that the wireless channel quality of the first terminal meets the newly established first threshold range; or receiving an available target carrier notified by the second terminal and activating a sidelink relay loop on the target carrier under the condition that the wireless channel quality of the first terminal does not meet the second threshold range; or switching to the backhaul channel establishment based on the target RAT when the wireless channel quality of the first terminal does not satisfy the second threshold range; or under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, sending a first message to the network side equipment to request the sidelink trunking loop to provide services related to the relay service. That is to say, through the method steps of the embodiment of the present application, the problem that a sidelink relay loop to a network side device cannot be established under the condition that the quality of the wireless channel of the first terminal does not meet the existing agreed threshold can be avoided, so that the existing relay manner is improved, and the coverage of the relay service provided by the relay terminal and the remote terminal in a combined manner is increased.
The embodiment of the present application further provides a network side device, which includes a processor and a communication interface, where the processor is configured to instruct the first terminal to allow or deny the provision of the service related to the relay service based on the sidelink relay loop, and the communication interface is configured to receive a first message sent by the first terminal, and is configured to send a response message to the first terminal. The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.
Specifically, the embodiment of the application further provides a network side device. As shown in fig. 9, the network device 900 includes: antenna 91, radio frequency device 92, baseband device 93. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the rf device 92 receives information via the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted and transmits the information to the rf device 92, and the rf device 92 processes the received information and transmits the processed information through the antenna 91.
The above-mentioned frequency band processing means may be located in the baseband means 93, and the method performed by the network side device in the above embodiment may be implemented in the baseband means 93, where the baseband means 93 includes a processor 94 and a memory 95.
The baseband device 93 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 9, where one of the chips, for example, the processor 94, is connected to the memory 95 to call up a program in the memory 95 to execute the network device operations shown in the above method embodiments.
The baseband device 93 may further include a network interface 96 for exchanging information with the radio frequency device 92, for example, a Common Public Radio Interface (CPRI).
Specifically, the network side device according to the embodiment of the present invention further includes: the instructions or programs stored in the memory 95 and capable of being executed on the processor 94, and the processor 94 calls the instructions or programs in the memory 95 to execute the method executed by each module shown in fig. 4, and achieve the same technical effect, and are not described herein in detail to avoid repetition.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above-mentioned embodiment of the relay service method based on the sidelink, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Wherein, 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 Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the embodiment of the relay service method based on the sidelink, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may 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 instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (21)
1. A method for a sidelink-based relay service, comprising:
the first terminal executes a first operation;
the first terminal provides a service related to a relay service based on the first operation;
wherein the first operation comprises at least one of:
establishing a side link relay loop under the condition of neglecting a wireless channel quality threshold;
under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing the sidelink relay loop;
under the condition that the wireless channel quality of the first terminal does not meet a second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating the sidelink relay loop on the target carrier;
under the condition that the wireless channel quality of the first terminal does not meet the second threshold range, switching to the establishment of a backhaul channel based on a target Radio Access Technology (RAT);
and 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 for requesting to provide the service related to the relay service based on the sidelink relay loop.
2. The method of claim 1, wherein the operation of establishing the sidelink relay loop while ignoring the wireless channel quality threshold is triggered based on a configuration of at least one of: predefined, proprietary signaling, broadcast signaling, sidelink signaling.
3. The method of claim 1,
in a case that the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; wherein a minimum value in the third threshold range is a first threshold, and a maximum value in the third threshold range is a second threshold; the minimum value in the fourth threshold range is the sum of a third threshold and a first offset value, and the maximum value in the fourth threshold range is the sum of a fourth threshold and a 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,
in the case that the first terminal is a far-end terminal, the first threshold range is a range smaller than or equal to a fifth threshold, or the first threshold range is a range smaller than or equal to a sum of a sixth threshold and a third offset value;
the second threshold range is a range less than or equal to the sixth threshold.
5. The method of claim 1, wherein the target carrier is a PC5 carrier.
6. The method of claim 1, wherein the target RAT comprises at least one of Wireless Fidelity (WiFi) and Bluetooth.
7. The method of claim 1, wherein the services related to relay services comprise extended implementation XR services.
8. A method for a sidelink-based relay service, comprising:
the method comprises the steps that network side equipment receives a first message sent by a first terminal, wherein the first message is used for requesting to provide services related to relay services based on a sidelink relay loop;
and the network side equipment sends a response message to the first terminal, wherein the response message is used for indicating that the first terminal is allowed or refused to provide the service related to the relay service based on the sidelink relay loop.
9. The method of claim 8, further comprising at least one of:
the network side equipment configures an offset value, wherein the offset value comprises at least one of the following items: a first offset value, a second offset value, a third offset value;
the network side equipment sends first indication information to the first terminal, wherein the first indication information is used for indicating the first terminal to ignore the wireless channel quality threshold;
and the network side equipment sends second indication information to the first terminal, wherein the second indication information is used for indicating a first threshold range to be met by the wireless channel quality.
10. A relay service device based on a sidelink is applied to a first terminal, and is characterized by comprising:
the execution module is used for executing a first operation;
a providing module for providing a service related to a relay service based on the first operation;
wherein the first operation comprises at least one of:
establishing a side link relay loop under the condition of neglecting a wireless channel quality threshold;
under the condition that the wireless channel quality of the first terminal meets a first threshold range, establishing the sidelink relay loop;
under the condition that the wireless channel quality of the first terminal does not meet a second threshold range, receiving an available target carrier notified by a second terminal or network side equipment, and activating the sidelink relay loop on the target carrier;
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;
and 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 for requesting to provide the service related to the relay service based on the sidelink relay loop.
11. The apparatus of claim 10, wherein the operation of establishing the sidelink relay loop while ignoring a wireless channel quality threshold is triggered based on a configuration of at least one of: predefined, proprietary signaling, broadcast signaling, sidelink signaling.
12. The apparatus of claim 10,
in a case that the first terminal is a relay terminal, the first threshold range includes a third threshold range or a fourth threshold range; wherein a minimum value in the third threshold range is a first threshold, and a maximum value in the third threshold range is a second threshold; the minimum value in the fourth threshold range is the sum of a third threshold and a first offset value, and the maximum value in the fourth threshold range is the sum of a fourth threshold and a 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 apparatus of claim 10 or 12,
in a case that the first terminal is a remote terminal, the first threshold range is a range smaller than or equal to a fifth threshold, or the first threshold range is a range smaller than or equal to a sum of a sixth threshold and a third offset value;
the second threshold range is a range less than or equal to the sixth threshold.
14. The apparatus of claim 10, wherein the target carrier is a PC5 carrier.
15. The apparatus of claim 10, wherein the target RAT comprises at least one of WiFi and bluetooth.
16. The apparatus of claim 10, wherein the services related to relay services comprise extended implementation XR services.
17. A kind of relay service device based on side link, apply to the network side apparatus, characterized by that, comprising:
a receiving module, configured to receive a first message sent by a first terminal, where the first message is used to request to provide a service related to a relay service based on the sidelink relay loop;
a first sending module, configured to send a response message to the first terminal, where the response message is used to indicate that the first terminal is allowed or denied to provide the service related to the relay service based on the sidelink relay loop.
18. The apparatus of claim 17, further comprising at least one of:
a configuration module to configure an offset value, wherein the offset value comprises at least one of: a first offset value, a second offset value, a third offset value;
a second sending module, configured to send first indication information to the first terminal, where the first indication information is used to indicate the first terminal to ignore a radio channel quality threshold;
and a third sending module, configured to send second indication information to the first terminal, where the second indication information is used to indicate a first threshold range that is to be met by the radio channel quality.
19. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the method steps of any of claims 1 to 7.
20. A network side device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, implement the method steps of claim 8 or 9.
21. A readable storage medium, characterized in that a program or instructions are stored on the readable storage medium, which program or instructions, when executed by a processor, carry out the method steps of any one of claims 1-7, or carry out the method steps of claim 8 or 9.
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| PCT/CN2022/097398 WO2022257926A1 (en) | 2021-06-11 | 2022-06-07 | Sidelink-based relay service method and apparatus, terminal, and network-side device |
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