WO2022052851A1

WO2022052851A1 - Quality of service (qos) monitoring method

Info

Publication number: WO2022052851A1
Application number: PCT/CN2021/116152
Authority: WO
Inventors: 邢玮俊; 吴问付; 张迪
Original assignee: 华为技术有限公司
Priority date: 2020-09-10
Filing date: 2021-09-02
Publication date: 2022-03-17
Also published as: CN114173368A

Abstract

A quality of service (QoS) monitoring method, comprising: a first communication device acquiring a first mapping relationship between QoS parameters and identification information of a first channel; the first communication device monitoring QoS parameters of the first channel; and when the first communication device determines that the QoS parameters of the first channel do not meet preset conditions, the first communication device sending first information.

Description

A Monitoring Method for Quality of Service QoS

This application claims the priority of the Chinese patent application filed on September 10, 2020 with the application number 202010945243.8 and the application title is "A Method for Monitoring Quality of Service QoS", the entire contents of which are incorporated into this application by reference middle.

technical field

The present application relates to the field of communications, and more particularly, to a method and apparatus for monitoring quality of service (QoS).

Background technique

In order to improve wireless spectrum utilization and provide cellular network services for terminals outside the coverage of the cellular network, proximity-based services (ProSe) communication is introduced into cellular communication networks. , UE) can directly establish a communication link without forwarding communication through the base station. Among them, in the UE-to-Network Relay architecture, a remote UE (remote UE) can establish a connection with a radio access network (RAN) through a relay device. In the UE-to-UE Relay, two UEs A connection can be established through a relay device, and the relay device forwards the respective communication data for the two UEs through the PC5 interface.

When a remote UE connects to a network device or a target UE through a relay device, there will be two communication links, that is, the communication link between the remote UE and the relay device, and the communication link between the relay device and the base station RAN or UE. In the communication link, the data flow of the two links is transmitted based on QoS flow. At present, the base station RAN or the target UE can monitor the communication quality of the communication link between the relay device and the target UE. When the base station RAN or the target UE When it is detected that the quality of the wireless air interface cannot meet the requirements, the core network element SMF can be notified to change the corresponding QoS parameters, or the QoS parameters between the target UE and the relay UE can be changed.

However, the base station RAN or the target UE cannot perceive the communication quality of the link between the relay device and the remote UE. When the communication quality between the relay device and the remote UE changes, for example, the base station or the target UE obtains The communication quality between it and the relay device meets the requirements, but the communication quality between the relay device and the remote UE does not meet the transmission requirements, because the base station RAN or the target UE cannot obtain the communication quality in another link. changes, the network device or the target UE cannot adjust the corresponding QoS parameters according to the changes, so that the end-to-end QoS requirements cannot be guaranteed.

SUMMARY OF THE INVENTION

The present application provides a monitoring method for quality of service (QoS), which monitors the communication quality between the relay UE or the remote UE during the communication process, and sends first information when the communication quality does not meet a preset condition, so that the The network device or the target UE can learn that the communication quality between the current remote UE and the relay UE does not meet the preset condition according to the first information, so that the corresponding QoS parameters can be adjusted according to the change, thereby ensuring the end-to-end QoS requirement.

In a first aspect, a method for monitoring quality of service (QoS) is provided, the method comprising: a first communication device acquiring a first mapping relationship between a QoS parameter and identification information of a first channel, where the first channel is used in a relay device data is transmitted between the terminal device and the terminal device; the first communication device monitors the QoS parameter of the first channel; when the first communication device determines that the QoS parameter of the first channel does not meet the preset condition, Send first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.

Optionally, the first communication device may be a terminal device or a relay device.

The relay UE or the remote UE monitors the communication quality between the two during the communication process, and sends the first information when the communication quality does not meet the preset condition, so that the network device or the target UE can know the current state according to the first information. The communication quality between the remote UE and the relay UE does not meet the preset conditions, so that the corresponding QoS parameters can be adjusted according to the changing situation, thereby ensuring the end-to-end QoS requirements.

Optionally, the identification information of the first channel may be the identification information of the channel corresponding to the QoS flow to be monitored.

Optionally, the QoS flow to be monitored may be a GBR QoS flow or a delay-critical GBR QoS flow.

With reference to the first aspect, in some implementations of the first aspect, the first channel includes: a side link radio bearer SLRB, or a radio link control link between the relay device and the terminal device RLC channel.

By acquiring the mapping relationship including the SLRB or the RLC and the above-mentioned QoS parameters, the relay device or the remote UE can monitor the communication quality of the first channel.

Optionally, the above-mentioned SLRB or RLC is an identifier corresponding to the QoS flow to be monitored.

With reference to the first aspect, in some implementations of the first aspect, the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receiving the first mapping from the base station relation.

Optionally, the above-mentioned QoS parameters and the identification information of the first channel may be sent by the base station to the first communication device after being configured for them.

By configuring the mapping relationship including the QoS parameters and the identification information of the first channel for the first communication device, the first communication device can monitor the communication quality between the remote UE and the relay device according to the mapping relationship, and monitor the communication quality between the remote UE and the relay device. When the communication quality between them does not meet the preset conditions, a message can be sent to inform the base station or the target UE that the communication quality does not meet the preset conditions, so that the base station or the target UE can obtain the situation that the above-mentioned communication quality does not meet the preset conditions, and correspondingly Change the QoS parameters, and then ensure the end-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receiving the second channel from the base station The second mapping relationship between the identification information of the QoS parameter and the QoS parameter, the second channel is used to transmit data between the relay device and the base station; the first communication device allocates the second channel to the second channel. A channel; the first communication device establishes the first mapping relationship.

Optionally, the first communication device may also complete the mapping relationship between the above-mentioned QoS parameters and the identification information of the first channel by itself. Therefore, the first communication device can monitor the communication quality between the remote UE and the relay device according to the above mapping relationship, and when the communication quality between them does not meet the preset condition, can send a message to inform the base station or the target UE, The communication quality does not meet the preset conditions, so that the base station or the target UE can obtain the situation that the communication quality does not meet the preset conditions, and correspondingly change the QoS parameters, thereby ensuring the end-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the first information includes an identifier of the second channel.

Optionally, when the above-mentioned mapping relationship is completed by the first communication device itself, since the base station is unaware of the identification of the first channel, the first communication device needs to carry the identification of the second channel in the first information, Therefore, the base station can learn the identification information of the channel that does not meet the preset conditions, so as to change the corresponding QoS parameters, thereby ensuring the end-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

With reference to the first aspect, in some implementations of the first aspect, the sending the first information includes: the first communication device sending the first information to the base station.

By sending the above-mentioned first information to the base station, the base station can obtain the communication quality between the relay UE and the remote UE, and when the above-mentioned communication quality does not meet the preset conditions, change the corresponding QoS parameters, thereby ensuring that the terminal End-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receiving the A first mapping relationship between QoS parameters and identification information of a QoS flow; the first communication device allocates the first channel for the identification information of the QoS flow; the first communication device establishes the first mapping relationship.

Optionally, in the UE-to-UE scenario, the first communication device (for example, it can be the target UE, which can be understood as the role of the remote UE in the UE-to-network scenario) passes through the slave terminal device (for example, the role of the remote UE in the UE-to-network scenario). It can be the source UE. It should be understood that the source UE here can be understood as the role of the base station in the UE-to-network scenario) to obtain the first mapping relationship including the QoS flow, and assign the first channel to the QoS flow. A communication device can monitor the communication quality between the target UE and the relay device according to the above-mentioned first mapping relationship, and when the communication quality between them does not meet the preset condition, it can send a message to inform the source UE that the communication quality is not good. The preset conditions are met, so that the source UE can obtain the situation that the above-mentioned communication quality does not meet the preset conditions, and change the QoS parameters accordingly, thereby ensuring the end-to-end QoS requirements.

Optionally, the sending the first information includes: the first communication device sending the first information to the terminal device.

Optionally, in a UE-to-UE scenario, the first communication device can send the monitored communication quality to the terminal device, so that the terminal device can obtain the communication quality of the PC5 link, and make corresponding changes according to the communication quality. Change the QoS parameters, and then ensure the end-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the first communication device is the relay device.

The relay device monitors the communication quality of the PC5 link between the relay device and the remote UE during the communication process, and sends a message to the base station or the target UE when the communication quality does not meet the preset conditions, so that the base station or the target UE The communication quality of the PC5 link can be known, and the corresponding QoS parameters can be changed when it does not meet the preset conditions, thereby ensuring the end-to-end QoS requirements.

In conjunction with the first aspect, in some implementations of the first aspect, the first channel includes a QoS flow.

Optionally, the first communication device may also receive the identification information of the QoS flow, and monitor the QoS parameters of the QoS flow based on the identification information of the QoS flow.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: acquiring, by the first communication device, indication information, where the indication information is used to instruct the first communication device to monitor the first communication device. The QoS parameters of the channel.

Optionally, after receiving the identification information of the QoS flow, the first communication device may spontaneously monitor the QoS parameters corresponding to the identification of the QoS flow, or alternatively, the first communication device may also receive the indication information, according to The indication of the indication information is to monitor the QoS parameters corresponding to the identifier of the QoS flow. With reference to the first aspect, in some implementations of the first aspect, the first communication device is the terminal device, and the first channel includes a QoS flow, and the acquiring QoS parameters and identification information of the first channel The first mapping relationship includes: the first communication device receives the first mapping relationship from the base station or the opposite terminal device, wherein the first communication device communicates with the opposite terminal device through the relay device to communicate.

Optionally, when the first communication device is a terminal device (such as a remote UE), the terminal device can monitor the communication quality of the PC5 link, and send a message to the base station or target when the communication quality does not meet the preset conditions. The UE enables the base station or the target UE to know the communication quality of the PC5 link, and changes the corresponding QoS parameters when it does not meet the preset conditions, thereby ensuring the end-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the first information further includes identification information of the first channel.

By sending the identification information of the first channel, the receiving end can learn the channel information that does not meet the preset conditions, so that the subsequent QoS parameter modification process can be further initiated, thereby ensuring end-to-end communication.

With reference to the first aspect, in some implementations of the first aspect, the sending the first information includes: the first communication device sends the first information to the base station, or the first communication device sends the first information to the base station The opposite terminal device sends the first information.

By sending the first information to the base station, the base station can learn that the PC5 link does not meet the preset conditions, so that the base station can change the corresponding QoS parameters, thereby ensuring end-to-end QoS requirements.

With reference to the first aspect, in some implementations of the first aspect, the first information includes a value of the QoS parameter of the first channel when the preset condition is not satisfied.

Optionally, when the first communication device finds that the communication quality of the first channel does not meet the preset condition in the process of monitoring the communication quality of the first channel, it may send information that does not meet the preset condition to the base station or the target UE, The modified QoS parameter value is carried in the above information.

With reference to the first aspect, in some implementations of the first aspect, the QoS parameter includes optional QoS configuration AQP information.

Optionally, the QoS parameter includes first optional QoS configuration AQP information, and the first communication device determining that the QoS parameter of the first channel does not meet a preset condition includes: the first communication device determining the The QoS configuration corresponding to the first AQP information of the first channel cannot be satisfied; the method further includes: selecting, by the first communication device, second AQP information, which corresponds to the second AQP information of the first channel QoS configuration can be satisfied.

Optionally, when the first communication device monitors that the communication quality of the first channel does not meet the preset condition during the monitoring process, if the first communication device has acquired the AQP configuration, the first communication device can Configuration, determine the AQP that satisfies the preset conditions.

Optionally, the first information includes second AQP information, and the second AQP information is used to request configuration according to the second AQP information, or used to indicate that configuration has been performed according to the second AQP information.

With reference to the first aspect, in some implementations of the first aspect, the sending the first information includes: sending, by the first communication device, a first message, the first message including the first information, the first A message is used to instruct to change the QoS configuration of the first channel.

Further, after determining that the communication quality of the first channel does not meet the preset condition, the first communication device may send a message for instructing to change the QoS configuration of the first channel, so that the base station or the target UE can change the corresponding QoS parameters, and then End-to-end QoS requirements are guaranteed.

In a second aspect, a method for monitoring quality of service (QoS) is provided, the method comprising: a second communication device sending a first mapping relationship between a QoS parameter and identification information of a first channel, where the first channel is used in a relay device data is transmitted between the terminal device and the second communication device; the second communication device receives first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.

By assigning the mapping relationship between the QoS parameter and the channel identification information for the communication device, the communication device can monitor the communication quality between the relay device and the terminal device according to the above mapping relationship, and further, according to the received data that does not meet the predetermined By setting the information of the conditioned channel, the second communication device can correspondingly change the QoS parameter corresponding to the channel, thereby ensuring the end-to-end QoS requirement.

Optionally, the above-mentioned mapping relationship is a mapping relationship corresponding to the QoS flow to be monitored, wherein the QoS flow to be monitored may be a GBR QoS flow or a delay-critical GBR QoS flow.

With reference to the second aspect, in some implementations of the second aspect, the first channel includes: a side link radio bearer SLRB, or a radio link control link between the relay device and the terminal device RLC channel.

With reference to the second aspect, in some implementations of the second aspect, before the second communication device sends the first mapping relationship between the QoS parameter and the identification information of the first channel, the method further includes: the second communication The device acquires identification information of a second channel, and the second channel is used to transmit data between the relay device and the base station; the second communication device allocates the first channel to the second channel; The second communication device establishes the first mapping relationship.

Optionally, the second communication device may be a base station. In this case, the base station may map the identifier of the second channel to the first channel, and send the identifier of the first channel, so that the terminal device or the relay device can identify the channel according to the identifier of the first channel. Monitor the communication quality, and send a message when the communication quality corresponding to the first channel does not meet the preset conditions to inform the second communication device, so that the second communication device can correspondingly change the QoS parameters of the first channel, thereby ensuring that End-to-end QoS requirements.

With reference to the second aspect, in some implementations of the second aspect, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

With reference to the second aspect, in some implementations of the second aspect, the receiving, by the second communication device, the first information includes: the second communication device receiving the first information from the relay device.

The first mapping relationship sent in this embodiment of the present application may be sent to the relay device, so that the relay device can monitor the quality of the channel between the relay device and the terminal device. Further, when the quality corresponding to the first channel does not meet the predetermined requirements When the conditions are set, the second communication device can be informed, so that the second communication device can correspondingly change the QoS parameters of the first channel, thereby ensuring the end-to-end QoS requirements.

In conjunction with the second aspect, in some implementations of the second aspect, the first channel includes a QoS flow.

Optionally, because the terminal device can perceive the QoS flow granularity, the second communication device can send the identification information including the QoS flow, so that the terminal device can monitor according to the QoS flow, and further, when the QoS parameter corresponding to the QoS flow When the preset condition is not met, the second communication device can be notified, so that the second communication device can correspondingly change the QoS parameter of the first channel, thereby ensuring the end-to-end QoS requirement.

With reference to the second aspect, in some implementations of the second aspect, the receiving, by the second communication device, the first information includes: receiving, by the second communication device, the first information received from the terminal device or the relay device. information.

With reference to the second aspect, in some implementations of the second aspect, the second communication device sends indication information to the terminal device, where the indication information is used to instruct the first communication device to monitor the first channel of the QoS parameters.

By sending the indication information, the first communication device can monitor the QoS parameters of the first channel, and further, the first communication device can send the monitoring result to the second communication device, so that the second communication device can monitor the QoS parameters of the first channel based on the first communication device. The channel quality of the channel changes the corresponding QoS parameters, thus ensuring the end-to-end QoS requirements.

In a third aspect, a method for monitoring quality of service (QoS) is provided, the method comprising: a third communication device sending a second mapping relationship between a QoS parameter and identification information of a second channel, where the second channel is used between the relay device and the base station data is transmitted between them; the third communication device receives first information, where the first information is used to indicate that the QoS parameter of the second channel does not meet a preset condition.

Optionally, the third communication device can be a base station, and the third communication device can send the second mapping relationship, so that the relay device can monitor the QoS parameters of the second channel according to the second mapping relationship, and When the QoS parameter does not meet the preset condition, the third communication device is notified, so that the third communication device can correspondingly change the QoS parameter corresponding to the second channel, thereby ensuring the end-to-end QoS requirement.

With reference to the third aspect, in some implementations of the third aspect, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

With reference to the third aspect, in some implementations of the third aspect, the receiving, by the third communication device, the first information includes: the third communication device receiving the first information from the relay device.

With reference to the third aspect, in some implementations of the third aspect, the third communication device is the base station.

In a fourth aspect, a monitoring device for quality of service (QoS) is provided, the device comprising: a first acquisition module configured to acquire a first mapping relationship between a QoS parameter and identification information of a first channel, where the first channel is used for data is transmitted between a relay device and a terminal device; a first processing module is configured to monitor the QoS parameter of the first channel; the first processing module is further configured to: determine the QoS of the first channel The parameter does not meet the preset condition, and the first sending module is configured to send first information when the QoS parameter of the first channel does not meet the preset condition, where the first information is used to indicate the first channel The QoS parameter does not meet the preset condition.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first channel includes: a side link radio bearer SLRB, or a radio link control link between the relay device and the terminal device RLC channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first obtaining module is specifically configured to: receive the first mapping relationship from the base station.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first obtaining module is specifically configured to: receive the second mapping relationship between the identification information of the second channel of the base station and the QoS parameter, so The second channel is used to transmit data between the relay device and the base station; the first processing module is further configured to: allocate the first channel to the second channel; and establish the first mapping relationship.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first information includes an identifier of the second channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first sending module is specifically configured to: send the first information to the base station.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first obtaining module is specifically configured to: receive the first mapping relationship between the QoS parameter and the identification information of the QoS flow from the terminal device; The first processing module is further configured to: allocate the first channel for the identification information of the QoS flow; and establish the first mapping relationship.

Optionally, the first sending module is specifically configured to: send the first information to the terminal device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the apparatus is the relay device.

In conjunction with the fourth aspect, in some implementations of the fourth aspect, the first channel includes a QoS flow.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first obtaining module is further configured to: obtain indication information, where the indication information is used to instruct the apparatus to monitor the QoS of the first channel parameter.

With reference to the fourth aspect, in some implementations of the fourth aspect, the apparatus is the terminal device, and the first obtaining module is specifically configured to: receive the first mapping relationship from the base station or the opposite terminal device , wherein the apparatus communicates with the opposite terminal device through the relay device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first information further includes identification information of the first channel.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first sending module is specifically configured to: send the first information to the base station, or send the first information to the opposite terminal device .

With reference to the fourth aspect, in some implementations of the fourth aspect, the first information includes a value of the QoS parameter of the first channel when the preset condition is not satisfied.

With reference to the fourth aspect, in some implementations of the fourth aspect, the QoS parameters include optional QoS configuration AQP information.

Optionally, the QoS parameter includes first optional QoS configuration AQP information, and the first processing module is specifically configured to: the first communication device determines the QoS corresponding to the first AQP information of the first channel The configuration cannot be satisfied; the first processing module is further configured to: select second AQP information, and the QoS configuration corresponding to the second AQP information of the first channel can be satisfied.

Optionally, the first information includes the second AQP information, where the second AQP information is used to request configuration according to the second AQP information, or used to indicate that configuration has been performed according to the second AQP information .

With reference to the fourth aspect, in some implementations of the fourth aspect, the first sending module is specifically configured to: send a first message, where the first message includes the first information, and the first message is used for Instruct to change the QoS configuration of the first channel.

A fifth aspect provides a monitoring device for quality of service (QoS), the device comprising: a second sending module configured to send a first mapping relationship between a QoS parameter and identification information of a first channel, where the first channel is used for data is transmitted between the relay device and the terminal device; the second receiving module is configured to receive first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first channel includes: a side link radio bearer SLRB, or a radio link control link between the relay device and the terminal device RLC channel.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the apparatus further includes: a second acquisition module, configured to acquire identification information of a second channel, where the second channel is used in the relay device data is transmitted between the base station and the base station; a second processing module is configured to allocate the first channel to the second channel; the second processing module is further configured to: establish the first mapping relationship.

With reference to the fifth aspect, in some implementations of the fifth aspect, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

With reference to the fifth aspect, in some implementations of the fifth aspect, the second receiving module is specifically configured to: receive the first information from the relay device.

In conjunction with the fifth aspect, in some implementations of the fifth aspect, the first channel includes a QoS flow.

With reference to the fifth aspect, in some implementations of the fifth aspect, the second receiving module is specifically configured to: receive the first information from the terminal device or the relay device.

With reference to the fifth aspect, in some implementations of the fifth aspect, the second sending module is further configured to: send indication information to the terminal device, where the indication information is used to instruct the first communication device to monitor the the QoS parameter of the first channel.

In a sixth aspect, a monitoring device for quality of service (QoS) is provided, the device comprising: a third sending module configured to send a second mapping relationship between QoS parameters and identification information of a second channel, where the second channel is used for data is transmitted between the relay device and the base station; and a third receiving module is configured to receive first information, where the first information is used to indicate that the QoS parameter of the second channel does not meet a preset condition.

With reference to the sixth aspect, in some implementations of the sixth aspect, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

With reference to the sixth aspect, in some implementations of the sixth aspect, the third receiving module is specifically configured to: receive the first information from the relay device.

With reference to the sixth aspect, in some implementations of the sixth aspect, the apparatus is the base station.

In a seventh aspect, a communication device is provided, and the communication device has the function of implementing the methods described in the above aspects. This function can be implemented by hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

In an eighth aspect, there is provided a communication device, comprising: a processor; the processor is configured to be coupled with a memory, and used to call and run a computer program from the memory, so as to execute the above-mentioned aspects or any possible possibilities of the various aspects. method in the implementation.

In a ninth aspect, a communication device is provided, including a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the communication device executes the above aspects or each A method in any possible implementation of an aspect.

In a tenth aspect, an apparatus (eg, the apparatus may be a system-on-a-chip) is provided, the apparatus including a processor for supporting the communication apparatus to implement the functions involved in the above aspects. In a possible design, the device further includes a memory for storing necessary program instructions and data of the communication device. When the device is a system-on-chip, it may be composed of chips, or may include chips and other discrete devices.

In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, the computer program comprising instructions for performing a method as described above in each aspect or in any possible implementation of each aspect.

In a twelfth aspect, there is provided a computer program product comprising a computer program which, when run on a computer device, causes the computer device to perform the method as described in the various aspects above.

These and other aspects of the present application will be more clearly understood in the description of the following embodiments.

Description of drawings

Figure 1 is a schematic diagram of the architecture of 5G ProSe communication.

FIG. 2 is a schematic diagram of a user plane protocol stack of a UE-to-Network layer 2 relay.

FIG. 3 is a schematic diagram of a user plane protocol stack of a UE-to-UE layer 2 relay.

FIG. 4 is a schematic diagram of a monitoring method for quality of service QoS according to an embodiment of the present application.

FIG. 5 is a schematic diagram of another monitoring method for quality of service QoS according to an embodiment of the present application.

FIG. 6 is a schematic diagram of another monitoring method for quality of service QoS according to an embodiment of the present application.

FIG. 7 is a schematic flowchart of a quality of service QoS monitoring according to an embodiment of the present application.

FIG. 8 is a schematic flowchart of another quality of service QoS monitoring according to an embodiment of the present application.

FIG. 9 is a schematic flowchart of another quality of service QoS monitoring according to an embodiment of the present application.

FIG. 10 is a schematic flowchart of another quality of service QoS monitoring according to an embodiment of the present application.

FIG. 11 is a schematic flowchart of another quality of service QoS monitoring according to an embodiment of the present application.

FIG. 12 is a schematic diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application.

FIG. 13 is a schematic diagram of another device for monitoring quality of service QoS according to an embodiment of the present application.

FIG. 14 is a schematic diagram of another monitoring apparatus for quality of service QoS according to an embodiment of the present application.

FIG. 15 is a schematic structural diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application.

FIG. 16 is another schematic structural diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application.

FIG. 17 is another schematic structural diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE Time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, 5th generation (5G) system or new radio (NR), and future evolved communication systems, etc.

FIG. 1 shows a schematic diagram of a network architecture of a communication system to which an embodiment of the present application is applied. The network architecture includes a terminal device, an access network device, an access management network element, a session management network element, a user plane network element, and a policy Control network element, network slice selection network element, network warehouse function network element, network data analysis network element, unified data management network element, unified data storage network element, authentication service function network element, network capability opening network element, application function network element , and the data network (DN) connecting the operator's network. The terminal equipment can send service data to the data network and receive service data from the data network through the access network equipment and user plane network elements.

Among them, the terminal device is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as Aircraft, balloons and satellites, etc. The terminal equipment can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal equipment can be a mobile phone (mobile phone) ), tablet computer (Pad), computer with wireless transceiver function, mobile internet device (MID), wearable device, virtual reality (VR) terminal device, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( Wireless terminals in transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, etc. The embodiments of this application do not limit application scenarios. Terminal devices may also be called For user equipment (user equipment, UE), mobile station, remote station, etc., the embodiments of this application do not limit the specific technology, device form, and name used by the terminal device.

An access network device is a device in the network that is used to connect a terminal device to a wireless network. The access network device may be a node in a radio access network, and may also be referred to as a base station, and may also be referred to as a radio access network (radio access network, RAN) node (or device). The network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (long term evolution, LTE) system or an evolved LTE system (LTE-Advanced, LTE-A), such as traditional Macro base station eNB and micro base station eNB in heterogeneous network scenarios, or may also include the next generation node B (next generation node B) in the fifth generation mobile communication technology (5th generation, 5G) new radio (new radio, NR) system , gNB), or may also include radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS) , transmission reception point (TRP), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (base band unit, BBU), baseband pool BBU pool, or WiFi access point ( access point, AP), etc., or can also include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CloudRAN) system, which is implemented in this application. Examples are not limited. In a separate deployment scenario where access network equipment includes CU and DU, CU supports radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (service data adaptation) protocol, SDAP) and other protocols; DU mainly supports radio link control layer (radio link control, RLC), media access control layer (media access control, MAC) and physical layer protocols.

The access management network element is mainly used for terminal attachment, mobility management, and tracking area update procedures in the mobile network. The access management network element terminates non-access stratum (NAS) messages, completes registration management, Connection management and reachability management, allocation of track area list (TA list) and mobility management, etc., and transparent routing of session management (SM) messages to session management network elements. In the 5th generation (5G) communication system, the access management network element can be an access and mobility management function (AMF). In future communication systems (such as 6G communication systems) , the mobility management network element may still be the AMF network element, or may have other names, which are not limited in this application.

The session management network element is mainly used for session management in the mobile network, such as session establishment, modification and release. Specific functions include allocating Internet Protocol (IP) addresses to terminals, and selecting user plane network elements that provide packet forwarding functions. In a 5G communication system, the session management network element may be a session management function (SMF). In a future communication system (such as a 6G communication system), the session management network element may still be an SMF network element, or it may be With other names, this application is not limited.

User plane NEs are mainly used to process user packets, such as forwarding, accounting, and lawful interception. The user plane network element may also be referred to as a protocol data unit (protocol data unit, PDU) session anchor (PDU session anchor, PSA). In the 5G communication system, the user plane network element may be a user plane function (UPF). In the future communication system (such as a 6G communication system), the user plane network element may still be a UPF network element, or it may be With other names, this application is not limited.

Policy control network element, including user subscription data management function, policy control function, charging policy control function, quality of service (quality of service, QoS) control, etc. In a 5G communication system, the policy control network element may be a policy control function (PCF). In a future communication system (such as a 6G communication system), the policy control network element may still be a PCF network element, or it may be With other names, this application is not limited.

The network slice selection function network element is mainly used to select the appropriate network slice for the service of the terminal device. In the 5G communication system, the network slice selection network element may be the network slice selection function (NSSF) network element. In the future communication system (such as the 6G communication system), the network slice selection network element may still be the NSSF network element. The network element may also have other names, which is not limited in this application.

The network warehouse function network element is mainly used to provide the registration and discovery functions of the network element or the services provided by the network element. In a 5G communication system, the network repository function network element may be a network repository function (NRF). In future communication systems (such as a 6G communication system), the network repository function network element may still be an NRF network element, or It can also have other names, which is not limited in this application.

Network data analysis network elements can be analyzed from various network functions (network functions, NF), such as policy control network elements, session management network elements, user plane network elements, access management network elements, and application function network elements (through the network capability opening function). network elements) to collect data and make analysis and predictions. In the 5G communication system, the network data analysis network element may be the network data analysis function (NWDAF). In the future communication system (such as the 6G communication system), the network data analysis network element may still be the NWDAF network element. , or may have other names, which are not limited in this application.

The unified data management network element is mainly used to manage the subscription information of terminal equipment. In a 5G communication system, the unified data management network element may be a unified data management (UDM), and in a future communication system (such as a 6G communication system), the unified data management network element may still be a UDM network element, or It can also have other names, which is not limited in this application.

The unified data storage network element is mainly used to store structured data information, including subscription information, policy information, and network data or service data defined in a standard format. In a 5G communication system, the unified data storage network element may be a unified data repository (UDR). In a future communication system (such as a 6G communication system), the unified data storage network element may still be a UDR network element, or It can also have other names, which is not limited in this application.

The authentication service function network element is mainly used to perform security authentication on terminal equipment. In a 5G communication system, the authentication service function network element may be an authentication server function (AUSF). In a future communication system (such as a 6G communication system), the authentication service function network element may still be an AUSF network element, or It can also have other names, which is not limited in this application.

The network capability exposure network element can expose some functions of the network to applications in a controlled manner. In the 5G communication system, the network capability exposure network element may be the network capability exposure function (NEF). In the future communication system (such as the 6G communication system), the network capability exposure network element may still be the NEF network element. Alternatively, it may have other names, which are not limited in this application.

The application function network element can provide service data of various applications to the control plane network element of the operator's communication network, or obtain network data information and control information from the control plane network element of the communication network. In the 5G communication system, the application function network element may be an application function (AF), and in the future communication system (such as a 6G communication system), the application function network element may still be the AF network element, or may also have other The name is not limited in this application.

The data network is mainly used to provide data transmission services for terminal equipment. The data network can be a private network, such as a local area network, or a public data network (PDN) network, such as the Internet (Internet), or a private network jointly deployed by operators, such as a configured IP multimedia network sub-network. System (IP multimedia core network subsystem, IMS) service.

It should be understood that the above network elements or functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (eg, a cloud platform). Optionally, the foregoing network element or function may be implemented by one device, or may be implemented jointly by multiple devices, or may be a functional module in one device, which is not specifically limited in this embodiment of the present application.

In order to improve the utilization of wireless spectrum and provide cellular network services for terminals outside the coverage of the cellular network, Proximity-based Services (ProSe) communication is introduced into the cellular communication network. communication link, instead of forwarding the communication through the base station. A schematic diagram of the architecture of a 5G ProSe communication in the prior art as shown in FIG. 1 , for example, the communication between UE A, UE B and NG-RAN can be regarded as a communication connection under the architecture of UE-to-Network Relay , the remote UE (ie UE B) can establish a connection with the radio access network (RAN) through the relay device, and for example, UE A, UE B and UE C can be regarded as the UE-to-UE Relay The communication connection in the architecture, UE B acts as a relay device (relay UE) between UE C and UE A, and forwards their respective signaling and data for the two UEs through the PC5 interface, wherein UE C is provided with ProSe communication. UE A can be called the source UE, and UE C that accepts ProSe communication can be called the target UE (or the peer UE called UEA). It can be understood that the source UE and the target UE are the UE-to-UE relay. The UEs in the architecture are distinguished, the source UE and the target UE can be interchanged, and the two can send data to each other.

In ProSe communication, the remote UE communicates with the network device through the relay device, or the target UE communicates with the source UE through the relay device. FIG. 2 shows the user plane protocol stack of the UE-to-network protocol data unit (protocol data unit, PDU) session transmission implemented using layer 2 relay in the UE-to-Network scenario. As shown in FIG. 2 , the remote UE is directly connected to the PDU layer of the data network, and it can be understood that the data in the application data packet is directly encoded, decoded and transmitted between the two. The data in the PDU layer is encapsulated once in a new radio-service data adaptation protocol (NR-SDAP) layer below the PDU layer of the remote UE. In this process, the NR-SDAP layer will correspond to the bearer used for physical layer transmission according to the QoS parameters (QoS flow) of the data packet, that is, after encapsulation, the lower layer of the SDAP layer, that is, the packet data convergence layer protocol (packet data convergence layer protocol). When processing the data packet, the PDCP layer transmits the data packet on the radio bearer (RB) corresponding to the QoS flow according to the QoS flow allocated by SDAP. The NR-SDAP and NR-PDCP protocols are the communication protocols used by the Uu interface. As can be seen from Figure 2, the remote UE is directly connected to the PDCP and SDAP of the NG-RAN (the SDAP layer in the figure omits the connection, but the same protocol layer name is actually connected, such as the PC5- The RLC and the PC5-RLC of the relay are correspondingly connected, and the NR-RLC of the relay is correspondingly connected to the new air interface-radio link control (NR-radio link control, NR-RLC) layer of the NG-RAN, and so on. The relay forwarding function can only perform codec forwarding operations on the PC5 interface and the Uu interface data below the PDCP layer.

According to the above processing, when the UE uses the relay to connect to the network, the data security between the remote UE and the gNB can be ensured without exposing the original data at the UE-to-Network Relay. At the same time, the gNB needs to maintain the binding relationship between the remote UE and the relay at the same time, because when the gNB receives the data packet of the remote UE forwarded by the relay, the information of the relay is below the RLC layer of the data packet, and the information above the PDCP layer is It is the information of the remote UE. When allocating radio resources, the gNB needs to inform the relay UE of the radio resources of the Uu interface and the PC5 interface.

Similarly, Figure 3 shows the user plane protocol stack using layer 2 relay in a UE-to-UE scenario. The difference from FIG. 2 is that the data network here is the source UE. The specific principle is similar to that in FIG. 2 , and details are not described here in this embodiment of the present application.

In the above ProSe relay communication, taking the UE-to-Network scenario as an example, a remote UE may use different applications (or services) in a PDU session, and the quality of service (quality of service) required by different applications (or services) of service, QoS) parameters are different, for example, video services need high bandwidth, while voice communication needs to ensure reliable low latency. Therefore, SMF will establish different QoS flows (QoS flows) for the QoS requirements of different services according to the communication requirements of the remote UE, and each QoS flow is identified by a QoS flow identifier (QFI). The QoS requirements corresponding to the same QoS flow are the same, and these requirements can be quantified by QoS parameters, such as delay, bandwidth, and packet loss rate. In order to facilitate the representation of QoS parameters, the 3GPP standard combines indicators such as delay, packet loss rate, and packet processing priority with a standardized identifier, namely 5QI (5G QoS Identifier). In addition to the QoS parameters indicated in 5QI, according to service requirements, the QoS parameters corresponding to each QoS Flow also include allocation and retention priority (ARP), flow bit rate (for bandwidth guarantee (guaranteed flow bit rate) , GBR) QoS Flow, including guaranteed rate and maximum rate), flow sum rate (for QoS Flow that does not require bandwidth guarantee (non-guaranteed flow bit rate, Non-GBR)) and so on.

After the SMF establishes the PDU session, the QFI used by the downlink data in the PDU session and its corresponding QoS parameters are sent to the base station (eg gNB) through the N2 message, and the QFI used for the downlink data in the PDU session is sent to the base station (eg gNB) through the N4 interface (between the control plane SMF and the user plane network element) interface) is configured to the UPF, thereby opening the downlink data transmission link from the DN to the base station. The uplink data sending rule (QoS rule) used by the UE and the corresponding QoS parameters are sent to the UE by the SMF through the N1 message. In this way, the base station can allocate radio resources to the UE for transmitting different QoS flows according to the QoS parameters. And for the GBR QoS flow, SMF can also instruct the base station to monitor the channel quality between the UE and the base station. When the channel quality between the UE and the base station does not meet the QoS requirements, it can notify the SMF to adjust the corresponding QoS parameters.

Specifically, for a guaranteed bit rate QoS flow (guaranteed bit rate QoS flow, GBR QoS flow), the base station needs to judge whether the radio resources on the wireless side can guarantee the bandwidth requirement corresponding to the GBR QoS Flow according to the channel quality between the UE and the base station . When the base station detects that the quality of the wireless air interface cannot guarantee the GBR requirement, the base station needs to notify the SMF to change the corresponding GBR QoS requirement. Specifically, the AMF sends the information in the N2 SM (session management, session management) container to the base station, and the N2 SM information may include: PDU session identifier, QoS configuration information (QFI and its corresponding QoS parameters). For the QoS configuration information, if the QoS flow identified by the QFI is a GBR QoS flow, the SMF can also add a notification control indication to the QoS configuration to instruct the RAN side base station to monitor the QoS flow. When the air interface transmission rate or bandwidth cannot meet the guaranteed flow When the bit rate (guaranteed flow bit rate, GFBR) is set, notification (alarm) information needs to be sent to the SMF. When notifying the SMF that the current GFBR cannot be satisfied, the base station can attach the currently supported GFBR value, as well as the supported packet delay budget (Packet Delay Budget, PDB) and packet error rate (Packet Error Rate, PER).

In addition, the N2 SM information may also include an optional QoS profile (alternative QoS profile, AQP). The optional QoS configuration means that the SMF can provide multiple sets of corresponding QoS parameters for the base station for the same GBR QoS flow. For example, for GRB QoS flow QFI 1, the corresponding QoS parameters are AQP 1={5QI=1, GFBR=10Mbps}, AQP 2={5QI=1, GFBR=8Mbps}, AQP 3={5QI=2, GFBR=5Mbps }Wait. Among them, 5QI (5G QoS Identifier, 5G QoS indicator) is a standardized QoS parameter group, which is composed of QoS parameters such as PDB and PER. For example, when 5QI=1, it means that the QoS parameters are: the default priority is 20, the PDB is 100ms, the PER is 0.01, and the default average window is 2000ms. When the SMF is the base station AQP, it will indicate the current or default QoS parameter group, for example, indicating that the base station's default AQP is AQP 1.

After the base station obtains the AQP, when monitoring that the air interface rate or bandwidth cannot meet the QoS parameters of the current AQP (for example, GFBR=10Mbps indicated by AQP 1), but can meet the QoS parameters of AQP 2, the base station sends an N2 message to the SMF, which includes QFI and AQP information that can be satisfied (eg AQP 2).

In the PC5 link between the relay UE and the remote UE, the data flow is also transmitted based on QoS flow, that is, PC5 QoS Flow. Each PC5 QoS Flow is identified by a PC5 Link QoS Flow Indicator (PC5 QoS flow indicator, PFI).

In the above description, since the base station can detect the link quality between the base station and the UE, when the link quality between the base station and the UE does not meet the communication requirements, the base station can notify the SMF to change the QoS parameters. In the scenario where the UE uses the relay UE to communicate with the base station, that is, in the UE-to-Network scenario, the base station or the core network element SMF cannot know the link quality of the PC5 link between the remote UE and the relay UE. Therefore, When the link quality of the PC5 link between the remote UE and the relay UE cannot guarantee the GBR QoS requirements, the base station cannot notify the SMF to adjust the corresponding QoS parameters, so that the end-to-end QoS requirements cannot be guaranteed.

Similarly, in the UE-to-UE scenario, the source UE cannot perceive the link quality of the PC5 link between the relay UE and the target UE, so when the link quality between the relay UE and the target UE changes , and the corresponding QoS parameters cannot be adjusted, so that the end-to-end QoS requirements cannot be guaranteed.

The present application provides a monitoring method for quality of service (QoS), in the UE-to-network scenario, the relay UE or the remote UE can monitor the previous communication quality, and when the monitoring result does not meet the preset conditions Send a message, so that the network device can obtain the link quality change of the communication link between the remote UE and the relay device during the communication process, so that the link quality of the link between the remote UE and the relay UE can be changed. When the transmission requirements are met, the corresponding QoS parameters are changed to ensure the end-to-end QoS requirements; or, in the UE-to-UE scenario, the relay UE or the target UE can monitor the communication quality between them, And send a message when the monitoring result does not meet the preset conditions, so that the source UE can obtain the link quality change of the communication link between the target UE and the relay device during the communication process, so that the target UE and the relay UE can be detected. When the link quality of the links between them does not meet the transmission requirements, the corresponding QoS parameters are changed, thereby ensuring the end-to-end QoS requirements.

FIG. 4 shows a schematic diagram of a monitoring method for quality of service QoS according to an embodiment of the present application. As shown in FIG. 4 , the method includes S410 to S430, and these steps will be described in detail below.

S410: The first communication device acquires a first mapping relationship between the QoS parameter and the identification information of the first channel, where the first channel is used for data transmission between the relay device and the terminal device.

Optionally, as the first case, the first communication device in this embodiment of the present application may be the relay device.

Optionally, the embodiments of the present application may be applied in a UE-to-Network scenario.

As an embodiment, the first channel may include: a side link radio bearer SLRB, or a radio link control link RLC channel between the relay device and the terminal device.

Optionally, the above-mentioned first channel may correspond to a QoS flow to be monitored, wherein the QoS flow to be monitored may be a GBR QoS flow or a delay-critical GBR QoS flow (delay-critical GBR QoS Flow).

In the prior art, the N2 message sent by the SMF to the base station may include the Uu interface QoS configuration information and the corresponding QFI that the remote UE needs to use in the PDU session. The QoS configuration information may include specific Uu QoS parameters (that is, 5QI) and the corresponding QFI. The base station needs to map the QFI to a data resource bearer (DRB) and allocate it to the relay UE for the medium Following the Uu interface communication between the UE and the base station.

Specifically, the base station maps all QFIs to one or more DRBs at the SDAP layer, and the specific mapping manner is not limited in the standard. However, on the relay side, the relay UE can only see the information of the radio link control link (radio link control channel, RLC channel) granularity, and the mapping relationship between QFI and RB is completed at the SDAP layer. Therefore, the relay UE cannot perform flow-granular QoS parameter monitoring for an individual QoS flow.

However, the relay UE can monitor the QoS parameters of SLRB granularity, so the embodiment of the present application can further map the QoS flow to be monitored to a separate SLRB or RLC channel by establishing an SLRB or RLC channel corresponding to the QoS flow for the relay UE. On the RLC channel, or instruct the relay UE to establish a separate SLRB for the QoS flow to be monitored, so that the relay UE can monitor the link quality of the PC5 link and report the monitoring results to the base station or UE, so that the base station or UE can The corresponding QoS parameter configuration can be adjusted according to the monitoring results, thus ensuring the end-to-end QoS requirements.

As an embodiment, the above-mentioned first mapping relationship may be obtained from the base station. Specifically, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receives all the information from the base station. Describe the first mapping relationship.

As another embodiment, the above-mentioned first mapping relationship may also be generated by the first communication device itself. Specifically, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device Receive a second mapping relationship between the identification information of the second channel of the base station and the QoS parameter, the second channel is used to transmit data between the relay device and the base station; the first communication device is The second channel allocates the first channel; the first communication device establishes the first mapping relationship.

Optionally, the second channel may include: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

Optionally, the PC5 communication mode used by the relay UE and the remote UE at this time is an ad hoc mode, that is, the PC5 communication resources are preconfigured by the relay UE and the remote UE at the base station or core network element (such as PCF) radio resources. Selection in the pool, because the relay UE does not know the QoS flow corresponding to each DRB and the QoS parameters corresponding to different QoS flows, therefore, when establishing a PC5 link between the relay UE and the remote UE, it needs to be based on the above-mentioned second channel. The identification information is obtained, PC5 link resources are obtained from the wireless resource pool, and corresponding first channel information, such as SLRB configuration information, is generated.

Optionally, the embodiments of the present application may be applied in a UE-to-UE scenario.

As an embodiment, the first mapping relationship may be sent by the source UE or the target UE to the first communication device. Specifically, the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the The first communication device receives the first mapping relationship between the QoS parameter and the identification information of the QoS flow from the source UE or the target UE; the first communication device allocates the first channel for the identification information of the QoS flow; The first communication device establishes the first mapping relationship.

It should be understood that in the UE-to-UE scenario, the relay UE can perceive the PFI granularity. Therefore, the first communication device can receive the mapping relationship including the identification information of the QoS flow, and then, according to the identification of the QoS flow, send the information to the PFI. The base station applies for establishing a separate SLRB for the QoS flow, and further, the first communication device may perform monitoring based on the granularity of the SLRB. Optionally, the identification information of the QoS flow may be PFI identification information. It can be understood that the above-mentioned first channel may also be an SLRB or a radio link control link RLC channel between the relay device and the target UE.

Optionally, as the second case, the first communication device in this embodiment of the present application may be the terminal device, such as a remote UE or a target UE.

In Figure 2, when the remote UE communicates with the data network through the relay UE, in its protocol stack, the remote UE and the SDAP and PDCP layers of the data network are directly connected, that is to say, the QFI and RB completed by the base station in the SDAP layer The mapping relationship can be perceived by the remote UE. Therefore, in this embodiment of the present application, the base station can notify the remote UE of the QoS flow that needs to be monitored and its corresponding parameters, and the remote UE can monitor according to the received needs. The identifier and its parameters corresponding to the QoS flow, monitor the PC5 link quality between the remote UE and the relay UE, thereby ensuring the end-to-end QoS requirements; or, in Figure 3, the source UE communicates with the relay device through the relay device. When the target UE communicates, in its protocol stack, the SDAP and PDCP layers of the source UE and the target UE are directly connected, that is, the SDAP and PDCP layers of the source UE and the target UE are directly connected, that is, the PFI The mapping relationship with the RB can be perceived by the source UE. Therefore, in this embodiment of the present application, the target UE can inform the source UE of the QoS flow to be monitored and its corresponding parameters, and the source UE can The identifier and its parameters corresponding to the QoS flow to be monitored are monitored, and the quality of the PC5 link between the source UE and the relay UE is monitored, thereby ensuring the end-to-end QoS requirements.

It should be understood that in UE-to-UE, the user protocol stack between the target UE and the source UE is connected, so the terminal device (target UE) can perceive the QoS flow granularity between the source UE and the target UE; or in UE-to-UE In the to-network scenario, the user protocol stack between the remote UE and the base station is connected, so the remote UE can perceive the QoS flow granularity between the remote UE and the base station. Therefore, the identification information of the QoS flow to be monitored can be combined with the The QoS parameters are sent to the first communication device, so that the first communication device can monitor the communication quality according to the identification information and the QoS parameters.

As an embodiment, the first communication device may acquire a mapping relationship including a QoS flow, and specifically, the first channel includes a QoS flow.

Optionally, the identifier of the QoS flow may be a PFI identifier or a QFI identifier. Wherein, in the UE-to-UE scenario, the terminal device (target UE) communicates with the opposite terminal device (source UE) through the relay device, and at this time, the first communication device can obtain the mapping relationship including the PFI identifier, thereby The first communication device can monitor the corresponding QoS flow based on the PFI identifier.

In the UE-to-network scenario, the terminal device (remote UE) communicates with the base station through the relay device. At this time, the first communication device can obtain the mapping relationship including the QFI identifier, so that the first communication device can use the QFI identifier to Identify and monitor the corresponding QoS flow.

Optionally, before monitoring the QoS parameters corresponding to the QoS flow, the first communication device may also receive indication information, and monitor the parameters of the QoS flow according to the indication information. Specifically, the method further includes: the first The communication device acquires indication information, where the indication information is used to instruct the first communication device to monitor the QoS parameter of the first channel.

As an embodiment, the first communication device may obtain the first mapping relationship including the identification information of the QoS flow from the opposite UE (source UE) or the base station respectively. Specifically, the first communication device is the terminal device, and the Obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receiving the first mapping relationship from the base station or the opposite terminal device, wherein the first communication device passes the The relay device communicates with the opposite terminal device.

S420, the first communication device monitors the QoS parameter of the first channel.

The first communication device monitors the communication quality of the PC5 link according to the first mapping relationship obtained in step S410.

The first communication device can monitor the communication quality of the PC5 link between the relay device and the remote UE, or between the relay device and the target UE, based on the SLRB identifier, the PFI identifier or the QFI identifier in the first mapping relationship, such as GFBR. , delay, packet loss rate, etc. Specifically, for example, when the current GFBR requirement is 1M/s, the relay UE can count the received data within 10s. If the received data is greater than or equal to 10M, it indicates that the current link quality meets the GFBR requirement ; Alternatively, the relay UE can also monitor the delay of the received data packet, record the time stamp of the data packet sending time node and the time stamp of the receiving time node, and judge whether the data packet delay meets the specified time delay; or The relay UE may also monitor the packet loss rate of the data packets, etc. The present application does not limit the method for the relay UE to monitor the QoS parameters.

S430: When the first communication device determines that the QoS parameter of the first channel does not meet a preset condition, send first information.

Optionally, the preset condition may be configured locally by the first communication device, or the preset condition may also be simultaneously received by the first communication device when receiving the first mapping relationship, optionally, the preset condition It may include, for example, not meeting the thresholds of bandwidth, packet loss rate, delay, etc., which are not limited in this application.

As an embodiment, the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.

As an embodiment, when the first communication device is a relay device and the first communication device receives the second mapping relationship from the base station, the first information may include an identifier of the second channel.

It should be understood that, since the first mapping relationship acquired by the first communication device is established by the first communication device at this time, the base station cannot perceive the identification of the first channel. Therefore, when sending the first information, the first communication device should Carry the ID of the second channel.

Optionally, the embodiments of the present application may be applied in a UE-to-network scenario, and at this time, the first communication device may send the monitoring result to the base station. Specifically, the sending of the first information includes: the first communication The device sends the first information to the base station.

Optionally, the embodiments of the present application may be applied to a UE-to-UE scenario. In this case, the monitoring result is sent to a terminal device (a remote UE or a target UE). Specifically, the sending the first information includes: The first communication device sends the first information to the terminal device.

Optionally, the first communication device in this embodiment of the present application may be a terminal device, such as a remote UE or a target UE.

In the UE-to-network scenario, after obtaining the monitoring result, the remote UE may send the monitoring result to the base station. Specifically, the sending the first information includes: the first communication device sending the first information to the base station. information.

When in a UE-to-UE scenario, optionally, after acquiring the monitoring result, the target UE may send the monitoring result to the source UE. Specifically, the sending the first information includes: sending the first communication device to the target UE. The terminal device sends the first information.

Optionally, the first information in this embodiment of the present application may also carry a changed QoS parameter value. Specifically, the first information includes the QoS parameter of the first channel when the preset condition is not satisfied. value of .

Optionally, the QoS parameters may include optional QoS configuration AQP information.

Optionally, the communication device may also acquire the AQP value, and in the monitoring process, when it is found that the QoS configuration corresponding to the AQP corresponding to the first channel cannot be satisfied, determine whether there is a satisfied AQP in the acquired other AQP information.

The QoS parameter includes first optional QoS configuration AQP information, and determining, by the first communication device, that the QoS parameter of the first channel does not meet a preset condition includes: determining, by the first communication device, the first channel The QoS configuration corresponding to the first AQP information cannot be satisfied; the method further includes: selecting, by the first communication device, second AQP information, the QoS configuration corresponding to the second AQP information of the first channel can be.

When the first communication device determines that the QoS is configured with an AQP that can be satisfied, the AQP may be carried in the information sent to the base station or the target UE. Specifically, the first information includes second AQP information, where the second AQP information is used to request configuration according to the second AQP information, or used to indicate that configuration has been performed according to the second AQP information.

It should be understood that, after the first communication device determines that the QoS configuration of the current first AQP information cannot be satisfied, if the first communication device also receives multiple AQP information, the first communication device can determine the information of the AQPs that the QoS configuration satisfies, and report the satisfied AQP information, or further, if the first communication device has obtained authorization or instruction, the first communication device can adjust the AQP value according to the QoS parameters that the side link can support, then the first communication device can adjust the AQP value by itself. The device can change the current AQP to the parameters of the AQP that meet the conditions, and report the changed AQP information.

Optionally, when sending the first information, the first communication device may also instruct the base station or the target UE to change the QoS parameter of the first channel at the same time. Specifically, the sending the first information includes: the first communication device sending a first message, where the first message includes the first information, and the first message is used to instruct to change the QoS of the first channel configuration.

In this embodiment of the present application, the first communication device obtains a mapping relationship including QoS parameters and channel identifiers, and monitors the channel between the relay device and the remote UE according to the mapping relationship. When the first communication device monitors the communication quality of the channel When the preset conditions are not met, send a message to the base station or the target UE, so that the base station or UE can obtain the communication quality of the PC5 link between the relay device and the remote UE, and change the corresponding QoS parameters according to the communication quality, and then End-to-end QoS requirements are guaranteed.

FIG. 5 shows a schematic diagram of another monitoring method for quality of service QoS according to an embodiment of the present application. As shown in FIG. 5 , the method includes S510 and S520, and the two steps are described in detail below.

S510: The second communication device sends a first mapping relationship between the QoS parameter and the identification information of the first channel.

As an embodiment, the first channel is used to transmit data between a relay device and a terminal device (eg, a remote UE or a target UE).

Optionally, the second communication device in this embodiment of the present application may be a base station.

As an embodiment, before the second communication device sends the first mapping relationship between the QoS parameter and the identification information of the first channel, the method further includes: acquiring, by the second communication device, identification information of the second channel, and the The second channel is used to transmit data between the relay device and the second communication device; the base station allocates the first channel to the second channel; and the base station establishes the first mapping relationship.

Optionally, the second channel may include: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the second communication device.

Optionally, the second communication device may send the above-mentioned first mapping relationship to the relay device. Alternatively, the second communication device may also send the above-mentioned first mapping relationship to a terminal device (eg, a remote UE).

As another embodiment, the second communication device may send the above-mentioned first mapping relationship to a terminal device (eg, a remote UE), and in this case, the first channel may include a QoS flow. Optionally, the identification information of the QoS flow may be QFI identification information.

It should be understood that since the protocol stacks between the remote UE and the base station are interoperable, the remote UE can perceive the granularity of the QoS flow. Therefore, by sending the mapping relationship including the identification information of the QoS flow to the remote UE, the remote UE can The UE performs monitoring based on QoS flows.

Optionally, the second communication device in this embodiment of the present application may be a terminal device (or a source UE).

At this time, the second communication device sends the identification information of the QoS flow. Specifically, the first channel includes the QoS flow.

As an embodiment, the second communication device may send channel information corresponding to the QoS flow that needs to be monitored to the relay UE or the target UE. Specifically, the first channel includes the QoS flow. Optionally, the identifier of the first channel may be a PFI identifier.

It should be understood that in the UE-to-UE scenario, the user protocol stacks of the source UE and the target UE are connected, so the terminal device (source UE or target UE) can perceive the QoS flow granularity between the source UE and the target UE, Therefore, the identification information and QoS parameters of the QoS flow to be monitored can be sent to the second communication device (relay UE or target UE), so that the communication device can monitor the communication quality according to the identification information and QoS parameters.

S520. The second communication device receives first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.

Optionally, the preset condition may be configured locally by the first communication device, or the preset condition may also be simultaneously received by the first communication device when receiving the first mapping relationship, optionally, the preset condition It may include, for example, not meeting the thresholds of bandwidth, packet loss rate, delay, etc., which are not limited in this application. As an embodiment, when the first channel includes an SLRB or an RLC channel, the second communication device may receive the first information from the relay device. Specifically, the second communication device receiving the first information includes: the second communication device The communication device receives the first information from the relay device.

As another embodiment, when the first channel includes SLRB or RLC channel or QoS flow, the second communication device may receive the first information from a terminal device or a relay device, specifically, the second communication device Receiving the first information includes: the second communication device receiving the first information from the terminal device or the relay device.

In the embodiment of the present application, the base station is the remote UE or the relay UE, or the source UE is the relay UE or the target UE, and the mapping relationship including the QoS parameter and the channel identification information is configured, so that the remote UE or the relay UE or the target UE can The mapping relationship is to monitor the QoS flow that needs to be monitored in the PC5 link between the relay UE and the remote UE, or between the relay UE and the target UE, so that the communication quality in the PC5 link does not meet the preset condition, the remote UE or the relay UE or the target UE can send information to the base station or the target UE, so that the base station or the target UE can change the corresponding QoS parameters when the communication quality in the PC5 link does not meet the preset conditions, and then End-to-end QoS requirements are guaranteed.

FIG. 6 shows a schematic diagram of another monitoring method for quality of service QoS according to an embodiment of the present application. As shown in FIG. 6 , the method includes S610 and S620, and the two steps are described in detail below.

S610: The third communication device sends a second mapping relationship between the QoS parameter and the identification information of the second channel.

As an embodiment, the second channel is used to transmit data between the relay device and the base station.

Optionally, the embodiments of the present application may be applied in a UE-to-network scenario, where the third communication device may be a base station.

Optionally, the third channel may be a channel corresponding to a QoS flow to be monitored, wherein the QoS flow to be monitored may be a GBR QoS flow or a delay-critical GBR QoS flow.

S620, the third communication device receives the first information.

As an embodiment, the first information is used to indicate that the QoS parameter of the second channel does not meet a preset condition.

As an embodiment, the third communication device may receive the first information from the relay device, and specifically, the third communication device receiving the first information includes: the third communication device receiving the first information from the relay device information.

In this embodiment of the present application, the base station configures the relay UE with a mapping relationship including QoS parameters and channel identification information, so that the relay UE can perform needs in the PC5 link between the relay UE and the remote UE according to the mapping relationship. The monitored QoS flow is monitored, so that when the communication quality in the PC5 link does not meet the preset conditions, the relay UE can send information to the base station, so that the base station can send information to the base station when the communication quality in the PC5 link does not meet the preset conditions , change the corresponding QoS parameters, and then ensure the end-to-end QoS requirements.

FIG. 7 shows a schematic flowchart of a relay device monitoring QoS according to an embodiment of the present application.

As shown in FIG. 7 , in S701 , the remote UE establishes a UE-to-Network connection between the relay UE and the network.

S702, the remote UE sends a PDU session establishment/change request message to the AMF of the remote UE through the base station. Specifically, after the remote UE establishes a PC5 connection with the relay UE, the remote UE sends a PDU session establishment/change request to the AMF of the remote UE through the base station message, requesting a connection to the network through a relay. The remote UE may request the AMF of the remote UE to establish a connection with the network through a relay through a non-access stratum (non-access stratum, NAS) message. Optionally, the remote UE can send an RRC message to the base station through the relay UE (at this time, the base station can obtain the binding relationship between the remote UE and the relay UE), including a NAS message (the NAS message is a request to establish a connection with the network through the relay). connect). After receiving the RRC message of the remote UE forwarded by the relay, the base station forwards the NAS message in it to the AMF of the remote UE. At the same time, the base station can obtain the identifier of the relay from the RRC message, thereby obtaining the binding relationship between the remote UE and the relay UE.

S703, the AMF forwards the PDU session establishment/modification request message of the remote UE to the SMF.

S704. Optionally, if the SMF does not store the PCC rule locally, the SMF obtains the PCC rule from the PCF.

S705, the SMF sends the established/modified PDU session information to the AMF. Specifically, the SMF can send the N1 SM container and the N2 SM container to the AMF through the Nsmf_PDUSession_UpdateSMContext service message.

S706, the SMF configures the N4 rule for the UPF according to the PCC rule.

S707, the AMF sends the information in the N1 SM container to the remote UE, where the N1 SM information may include: PDU session identifier, QoS parameters corresponding to the changed QoS rules

S708, the AMF sends the information in the N2 SM container to the base station, and the N2 SM information may include: a PDU session identifier, and QoS configuration information (which may include a QoS flow identifier (QoS Flow Identifier, QFI) and its corresponding QoS parameters). For the QoS configuration information, if the QoS flow identified by the QFI is a guaranteed bit rate QoS flow (guaranteed bit rate QoS flow, GBR QoS flow), the SMF can also add a Notification Control indication to the QoS configuration to instruct the base station to monitor the QoS flow , when the transmission rate or bandwidth of the air interface cannot meet the guaranteed flow bit rate (GFBR), a notification (alarm) message needs to be sent to the SMF. Optionally, when notifying the SMF that the current GFBR cannot be satisfied, the base station may attach the currently supported GFBR value, as well as the supported packet delay budget (Packet Delay Budget, PDB) and packet error rate (Packet Error Rate, PER).

In addition, the N2 SM information may also include an optional QoS profile (Alternative QoS Profile, AQP). The optional QoS configuration means that the SMF can provide the base station with multiple sets of corresponding QoS parameters for the same GBR QoS flow. For example, for GRB QoS flow QFI 1, the corresponding QoS parameters are AQP 1={5QI=1, GFBR=10Mbps}, AQP 2={5QI=1, GFBR=8Mbps}, AQP 3={5QI=2, GFBR=5Mbps }Wait. Among them, the 5G QoS indicator (5G QoS Identifier, 5QI) is a standardized QoS parameter group, which is composed of QoS parameters such as PDB and PER. For example, when 5QI=1, it means that the QoS parameters are: the default priority is 20, the PDB is 100ms, the PER is 0.01, and the default average window is 2000ms. When the SMF sends AQP for the base station, it will indicate the current or default QoS parameter group, for example, instructing the base station to default the AQP to AQP 1. After the base station obtains the AQP, when it monitors that the air interface rate or bandwidth cannot meet the QoS parameters of the current AQP (for example, GFBR=10Mbps indicated by AQP 1), but can meet the QoS parameters of AQP 2, the base station can send an N2 message to the SMF, in which Including the current QFI and AQP information (such as AQP 2) that can satisfy the current air interface rate or bandwidth.

It should be understood that steps S101 to S108 belong to the prior art, the embodiments of the present application only explain the contents related to the present application, and other specific contents refer to the prior art, and the embodiments of the present application will not be repeated here.

S709, the base station sends the configuration information of the PC5 link and the QoS parameter information that needs to be monitored by the relay UE to the relay UE.

On the one hand, in S708, after the base station receives the relevant QoS configuration in the N2 message, the base station maps all QoS flows corresponding to QFIs to one or more DRBs at the SDAP layer, and each DRB is assigned a corresponding DRB ID The specific mapping manner is not limited in the embodiments of the present application. Since the mapping relationship between QFI and DRB ID is done at the SDAP layer, on the relay UE side, the relay UE can only see the information (DRB ID) granularity of the radio link control link (Radio Link Control Channel, RLC Channel). The mapping relationship with RLC Channel ID), so the information of QoS flow granularity cannot be seen. Therefore, the relay cannot monitor the QoS parameters at the flow granularity for an individual QoS flow. On the other hand, the relay UE can only monitor the information of the SLRB granularity (information at the RLC layer and below) on the PC5 link. Therefore, in order to To monitor the QoS flow that needs to be monitored by the relay UE, the base station needs to map the Uu QoS flow that needs to be monitored by the relay to a separate SLRB and send the SLRB and the QoS parameter information that needs to be monitored by the relay UE to the relay. The QoS parameter information here may be the first threshold of a specific QoS parameter and its corresponding QoS parameter, or if there are more specific QoS parameters, there may also be multiple corresponding thresholds (for example, GFBR, PDB, PER, etc. ), or the QoS parameter information can also include the AQP for the side link (similar to the AQP in the N2 message, the difference is that the AQP is not bound to the QFI, but is bound to a separately established SLRB), etc. .

Specifically, the base station can locally store the mapping relationship between PC5 QoS parameters and Uu QoS parameters or PC5 QoS parameters and Uu QoS parameters (the mapping relationship can be preset in the base station, or generated by the PCF network element on the network side and sent through the AMF network element. To the base station), the base station can map to the PC5 QoS parameters according to the Uu QoS parameters. Or, the base station maps the Uu QoS parameters to the corresponding PC5 QoS parameters according to the mapping relationship between the two and the Uu QoS parameters obtained from the N2 message in S108, such as 5QI and PC5 QoS indicator (PC5 QoS Indentifier, PQI) mapping. The base station allocates the SLRB configuration (corresponding to the PC5 QoS parameters) for the remote UE and the relay according to the PQI obtained by the mapping. After the base station completes the mapping between Uu QoS parameters and DRBs, and the mapping between PC5 QoS parameters and SLRBs, the base station on the RAN side sends the mapping relationship between DRBs and SLRBs to the relay UE, and sends the PC5 QoS information that needs to be monitored by the relay with the DRB. and SLRB configuration information is sent to the relay UE. Optionally, the remote UE may obtain the configuration information of the SLRB from the base station through an RRC message, or obtain the configuration information of the SLRB from the relay UE through a PC5-S or PC5-RRC message.

As an embodiment, the base station allocates DRBs separately for the Uu QoS flows that need to be monitored. As shown in Table 1, the mapping relationship between DRBs and SLRBs allocated by the base station to the relay UE. Wherein, the base station maps QFI 1 to DRB 1, and QFI 2 maps to DRB 2. Among them, QFI 1 corresponds to the GBR QoS flow and needs to be monitored, while QFI 2 corresponds to the non-GBR QoS flow and does not need to be monitored. At this time, the base station needs to map the Uu QoS parameters corresponding to QFI 1 and QFI 2 to the corresponding PC5 QoS parameters according to the description in the previous paragraph. After that, the base station configures the SLBR of the PC5 link according to the PC5 QoS parameters. Because the Uu QoS parameters corresponding to QFI 1 need to be monitored, the corresponding PC5 QoS parameters also need to be monitored. Therefore, the base station can map DRB 1 to SLRB 1, and DRB 2 to SLRB 2, and the corresponding binding relationship can add an additional indication to the Uu RLC layer to instruct the relay UE to bind DRB 1 to SLRB 1. Or RLC Channel 1 is bound to SL RLC Channel 1. Alternatively, additional sublayers can be added on the Uu RLC layer to carry the above indication. In addition, in addition to the binding relationship between DRB 1 and SLRB 1, it also needs to carry PC5 QoS parameter information that needs to be monitored by the relay UE, such as GFBR or AQP. Similarly, the base station instructs the relay UE to bind DRB 2 to SLRB 2, or to bind RLC Channel 2 to SL RLC Channel 2, without adding PC5 QoS parameter information that needs to be monitored by the relay UE.

Table 1 Mapping relationship between DRB and SLRB allocated by the base station for the relay UE

As another possible embodiment, the base station may configure the QoS flows that need to be monitored and the QoS flows that do not need to be monitored in one DRB. As shown in Table 2, the mapping relationship between DRBs and SLRBs allocated by the base station to the relay UE. The base station maps QFI 1, QFI 2, and QFI 3 to DRB 1, where QFI 1 corresponds to the GBR QoS flow, and QFI 2 and QFI 3 correspond to the non-GBR QoS flow. As in the previous example, the base station maps the Uu QoS parameters to the corresponding PC5 QoS parameters, and then configures the SLRB. Specifically, if the QoS parameters corresponding to QFI 1 need to be monitored, the base station can establish a separate SLRB (ie SLRB 1) for QFI 1 and a separate SLRB (ie SLRB 2) for QFI 2 and QFI 3. The binding relationship between DRB 1 and SLRB 1 and SLRB 2 can be configured by the base station to the relay UE at the Uu RLC layer or by adding a sublayer above the Uu RLC layer to carry these configuration information. At the same time, the PC5 QoS parameters that need to be monitored by SLRB 1 are carried in the Uu RLC layer or additional sublayer.

In this embodiment, one DRB corresponds to multiple SLRBs, so in addition to the above-mentioned binding relationship between the DRB and the SLRB, further processing needs to be performed to realize the relay forwarding service. A processing method may be that if the DRB can be further subdivided into RLC Channel granularity, QFI 1 can be transmitted through RLC Channel 1, while QFI 2 and QFI 3 can be transmitted through RLC Channel 2. At this time, the base station can refine the above-mentioned binding relationship between DRB 1 and SLRB 1 and SLRB 2, bind RLC Channel 1 to SLRB 1 or SL RLC Channel 1 in SLRB 1, and bind RLC Channel 2 to SLRB 2 or SL RLC Channel 2 in SLRB 2 for binding. Another processing method may be that after the base station configures the binding relationship between DRB 1 and SLRB 1 and SLRB 2 and the PC5 QoS parameters of SLRB 1 to be monitored to the relay UE, in the process of data packet transmission (downlink data) , for each user plane data packet, it is necessary to carry indication information in the Uu RLC layer or the additional sublayer added above to instruct the data packet to use SLRB 1 or SLRB 2 for PC5 transmission. Therefore, the relay can accurately perform the data packet relay service between the Uu interface and the PC5 interface.

Table 2 Mapping relationship between DRB and SLRB allocated by base station for relay UE

S710, the base station feeds back wireless air interface information on the base station side to the SMF, including the air interface address, whether the air interface can support the QoS parameters shown in the QoS configuration, and the like.

S711, the SMF updates the N4 session configuration of the UPF according to the information fed back by the base station on the RAN side, including: notifying the UPF of the air interface address, changing the corresponding QoS configuration parameters, and the like.

S712, after the establishment or modification of the PDU session is completed, the remote UE performs cellular communication through the relay.

S713, the relay UE and the remote UE monitor the QoS parameters in the side link during the PC5 communication process, such as GFBR, delay, packet loss rate, etc. Specifically, for example, when the current GFBR requirement is 1M/s, The relay UE can count the received data within 10s. If the received data is greater than or equal to 10M, it indicates that the current link quality meets the GFBR requirements; alternatively, the relay UE can also monitor the delay of the received data packets and record the data packets The time stamp of the sending time node and the time stamp of the receiving time node are used to determine whether the delay of the data packet meets the specified delay; or the relay UE can also monitor the packet loss rate of the data packet, etc. This application monitors the relay UE. The method of QoS parameters is not limited.

S710-S713 belong to the prior art, and the embodiments of this application will not describe them in detail.

S714, the relay UE determines whether the monitoring result of the QoS parameter corresponding to the separately established SLRB obtained by monitoring meets the first threshold of the current QoS parameter, and when the relay UE determines that the monitoring result of the QoS parameter obtained by the current monitoring does not meet the first threshold of the current QoS parameter When a threshold is required, a feedback message is sent to the base station.

That is, S715, the relay UE sends the sidelink monitoring result to the base station. Specifically, because the SLRB configuration information in the relay device is configured by the base station for the relay UE, the base station stores the SLRB configuration information, such as the corresponding relationship between the DRB or RLC channel ID and SLRB and QIF, therefore, the relay UE In the monitoring result, it can carry the DRB ID or RLC Channel ID or SLRB ID and the QoS monitoring result of the side link (such as the GFBR value obtained by monitoring, etc.). For example, when the base station allocates DRB and SLRB configurations for the relay UE, it sends the information of {DRB 1, SLRB 1, GFBR=10Mbps} to the relay, and when the relay UE monitors the side link air interface (PC5 interface) in step S714 If only GFBR=8Mbps can be supported, the QoS feedback message sent to the base station may be that the GFBR of SLRB 1 cannot be satisfied, and at the same time, the satisfiable GFBR=8Mbps can be added. Because the DRB or RLC Channel may have a corresponding relationship with the SLRB, when the relay UE sends the QoS feedback message to the base station, it may only carry the DRB ID or RLC Channel ID. When the base station receives the DRB ID or RLC channel ID, it can confirm the corresponding SLRB ID from the corresponding relationship. In addition, the QoS parameter here may also be a delay indicator, a packet loss rate indicator, and the like.

Further, when the QoS information that needs to be monitored sent by the base station to the relay UE also includes AQP information, for example, for SLRB1, the corresponding QoS parameters are AQP 1={PER=0.01, PDB=100ms, GFBR=10Mbps}, AQP 2 ={PER=0.01, PDB=100ms, GFBR=8Mbps}, AQP 3={PER=0.001, PDB=200ms, GFBR=5Mbps}, etc., and AQP 1 is currently used. Then, when the relay UE monitors in step S714 that the side link air interface (PC5 interface) can only support GFBR=8Mbps, and the PER can meet the 0.01 requirement, and the PDB can meet the 100ms requirement, the relay UE can judge the current side link. The QoS parameters of SLRB 1 can be adjusted from AQP 1 to AQP 2. Then, the relay UE can notify the base station in the QoS feedback message that the GFBR cannot be satisfied in the QoS parameters of the current AQP 1, and that the PER and PDB can be satisfied or AQP 2 can be satisfied. The base station determines whether to adjust the QoS parameter of SLRB 1 to AQP 2.

Or alternatively, if the base station authorizes or instructs the relay UE to adjust the AQP value according to the QoS parameters supported by the side link before (for example, in step S109), the relay UE can adjust the QoS parameters of SLRB 1. After adjusting to AQP 2, the result is directly sent to the base station through the QoS monitoring result of this step, and the SLRB ID and AQP value (here is SLRB 2, AQP 2) are carried in the message.

S716, the base station initiates a PDU session modification request to the SMF. Specifically, after receiving the QoS message fed back by the relay UE, the base station confirms the corresponding QFI and the corresponding QoS configuration information according to the SLRB identifier or the DRB identifier or the RLC Channel identifier therein. In a specific PDU session modification request, the base station may carry corresponding QoS information with the request message according to the QoS parameters fed back by the relay.

For example, if the relay feeds back that the GFBR cannot be satisfied, the base station carries the notification information that the GFBR cannot be satisfied in the PDU session change request message; if the relay UE also carries the currently satisfiable GFBR information in the monitoring result, the base station can The PDU session change request message carries the currently satisfiable GFBR value; if the relay UE also carries the changed AQP value in the monitoring result, the base station can carry the currently supported or used AQP value in the PDU session change request message, etc. .

S717, the SMF changes the N4 session configuration for the UPF according to the QFI and the corresponding QoS information in the PDU session change request message.

S718, the SMF sends the modified PDU session information to the remote UE through an N1 message, and to the base station through an N2 message. Steps S717 and S718 belong to the prior art, and are not described in detail in this embodiment of the present application.

S719, the base station updates the QoS parameter information corresponding to the SLRB or DRB or RLC Channel for the relay UE according to the N2 message. Specifically, the base station updates the SLRB configuration information according to the QoS parameters in the N2 message, and resends the information to the relay UE, so that the relay UE can update the SLRB configuration information.

The embodiments of the present application can be applied in a UE-to-network relay scenario. The base station allocates separate SLRB configuration information to the relay device for the QoS flow that needs to monitor QoS parameters, so that the relay device can monitor the relay device according to the separately configured SLRB information. QoS parameters of the side link, so that when the quality of the side link between the remote device and the relay device does not meet the current QoS parameter requirements, the QoS parameters of the side link can be changed, thus ensuring the end-to-end communication quality requirements of the terminal.

As another embodiment, the base station does not need to send the QoS parameter information that needs to be monitored for the relay UE. Instead, according to the prior art, when the base station allocates the mapping relationship between the PC5 link information and the DRB to the relay device, it can send the The relay UE sends the mapping relationship between DRB and QFI and/or the mapping relationship between SLRB and PFI, and then the relay UE can determine the QoS parameter information that needs to be monitored according to the mapping relationship. If the relay UE cannot obtain the QoS parameters corresponding to the QFI and/or the PFI, the base station also needs to send the QoS parameters corresponding to the QFI and/or the PFI to the relay UE. The case of "QFI and PFI" here is that the relay UE maps the QoS parameters (Uu QoS parameters) corresponding to QFI to the QoS parameters (PC5 QoS parameters) corresponding to the corresponding PFI, or the relay UE does not have Uu QoS parameters and PC5 QoS parameters. (this relationship may be the pre-configuration information obtained by the relay UE from the network side, or the pre-configuration information stored locally). Otherwise, the relay UE only needs to obtain the information of "QFI or PFI", and can deduce the corresponding value of the Uu QoS parameter and the PC5 QoS parameter from the mapping relationship between the two.

Further, if the relay UE cannot know the QoS parameters corresponding to the QFI and/or PFI, the base station can send the corresponding QoS parameters to the relay UE, optionally, the existing NR RLC layer can be enhanced by adding additional QoS parameters. DRB QoS parameter information, or add an additional adaptation layer (Adaptation Layer) on the NR RCL layer, and add QoS parameters in it.

By directly sending the mapping relationship between DRB and QFI and/or the mapping relationship between SLRB and PFI to the relay UE, the relay UE can independently determine the QFI or PFI that needs to be monitored for QoS, so that the remote UE and the relay can be further monitored. The communication quality of the sidelink between UEs is monitored. Correspondingly, when the relay UE finds that the QoS result of the current SLRB link monitoring does not meet the current QoS parameter requirements, it sends a feedback message to the base station, where the feedback message may include DRB or SLRB or QFI or PFI and the corresponding QoS monitoring result.

In this embodiment of the present application, by allocating the mapping relationship between DRB and QFI and/or the mapping relationship between SLRB and PFI to the relay UE, the relay UE can know the QoS parameters that need to be monitored, and monitor the QoS parameters that need to be monitored. , so that when the link quality between the relay UE and the remote UE does not meet the requirements, the parameters can be changed, thereby ensuring the end-to-end communication quality requirements.

FIG. 8 shows a schematic flowchart of another relay device monitoring QoS. The embodiment of the present application is similar to the application embodiment in FIG. 7 , the difference is that the base station does not directly establish a separate SLRB configuration for the QoS flow requiring QoS monitoring and send it to the relay UE. The ID of the DRB or the ID of the RLC channel corresponding to the QoS flow is sent to the relay UE, so that the relay UE can establish a separate SLRB for the QoS flow that needs to be monitored according to the ID.

S801 to S808 are the same as S701 to S708 in FIG. 7 , and detailed descriptions are not repeated in this embodiment of the present application.

Step S809a, the base station sends to the relay UE the identification information corresponding to the QoS flow of the SLRB that needs to be established separately and the corresponding DRB configuration, wherein the identification information corresponding to the QoS flow of the SLRB that needs to be established separately can be the DRB identification or the DRB. RLC channel identification, etc. Optionally, if the base station only sends the identification information and the QoS parameter information to the remote UE, the remote UE needs to forward the message to the relay UE (which can be sent through a PC5-S or PC5-RRC message). As shown in Table 3, the DRB configuration may be the DRB configuration used in the communication link between the base station and the relay device, and may specifically include the RLC layer, MAC layer and PHY layer configuration between the relay UE and the base station, where , the RLC layer is configured as the RLC channel used by the Uu interface, the retransmission mechanism, etc., the MAC layer is configured as the mapping relationship between the logical channel and the transport channel, and the hybrid automatic repeat request (HARQ) method, etc.

Table 3 Mapping relationship between Uu QoS flow and DRB configured by base station for remote UE

DRB1DRB1	NR RLC1，NR MAC1，NR PHY1NR RLC1, NR MAC1, NR PHY1	Uu QoS Profile for DRB 1Uu QoS Profile for DRB 1
DRB2DRB2	NR RLC2，NR MAC2，NR PHY2NR RLC2, NR MAC2, NR PHY2	Uu QoS Profile for DRB 2Uu QoS Profile for DRB 2

Optionally, the base station may also send QoS parameter information that needs to be monitored to the relay UE. The QoS parameter information here may be the first threshold of a specific QoS parameter and its corresponding QoS parameter, or if there are more specific QoS parameters, there may also be multiple corresponding thresholds (for example, GFBR, PDB, PER, etc. ), or the QoS parameter information may also include AQP for the side link, etc.

S809b, the relay UE completes the SLRB configuration. At this time, the PC5 communication mode used by the relay UE and the remote UE is an ad hoc mode, that is, the PC5 communication resources are selected by the relay UE and the remote UE from the radio resource pool preconfigured by the base station or core network element (such as PCF), Since the relay UE does not know the QoS flow corresponding to each DRB and the QoS parameters corresponding to different QoS flows, when the PC5 link is established between the relay UE and the remote UE, it needs to be configured according to the above DRB (as shown in Table 2). (shown) obtain PC5 link resources from the wireless resource pool, generate separate SLRB configuration information, and complete the corresponding SLRB configuration shown in Table 4 (PC5 RLC, PC5 MAC and PC5 PHY configuration). Specifically, based on the Uu QoS configuration information in the DRB configuration as shown in Table 3, the relay UE needs to correspond to the PC5 QoS, and the specific mapping rules (that is, the corresponding relationship between the Uu QoS parameters and the PC5 QoS parameters) can be It is pre-configured to the relay UE by the base station or core network element (eg PCF). During SLRB configuration, the relay UE can select the underlying radio resources according to the derived PC5 QoS parameters, for example, select the physical channel frequency band bandwidth according to the bandwidth, etc.

After establishing the mapping relationship between the DRB and the SLRB, the relay UE can accurately send the data packet received by the Uu or the PC5 through the PC5 or the Uu port. For example, when the data packet corresponding to QFI 1 (QFI 1 is included in DRB 1) of the remote UE is processed by the NR SDAP 1 layer and the NR PDCP layer, the PC5 RLC 1, PC5 MAC 1 and PC5 PHY1 layers are used on the PC5 interface. When processing and sending to the relay UE, the relay UE can use NR RLC 1, NR MAC 1 and NR PHY 1 to process the data packet according to the mapping relationship between DRB and SLRB and send it to the base station. The decoding of the data packet can finally obtain the data packet of the QoS flow accurately from the NR SDAP1 layer.

Table 4 Relay UE and remote UE complete SLRB configuration and the mapping relationship between SLRB and DRB

DRB·1 DRB 1	SLRB1SLRB1	PC5 RLC1，PC5 MAC1，PC5 PHY1PC5 RLC1, PC5 MAC1, PC5 PHY1	PC5 QoS Profile for SLRB 1PC5 QoS Profile for SLRB 1
DRB2DRB2	SLRB2SLRB2	PC5 RLC2，PC5 MAC2，PC5 PHY2PC5 RLC2, PC5 MAC2, PC5 PHY2	PC5 QoS Profile for SLRB 2PC5 QoS Profile for SLRB 2

S810 to S814 are the same as S710 to S714 in the application embodiment in FIG. 7 , and repeated descriptions are not repeated in this embodiment of the application.

Correspondingly, in S815, the relay UE sends the QoS monitoring result to the base station. Because in the embodiment of this application, the SLRB configuration information of the relay UE is generated by the relay UE, not sent by the base station, and the base station does not know the specific configuration of the SLRB, such as the correspondence between the SLRB identifier and the DRB identifier established separately. Wait. Therefore, in the embodiment of the present application, the monitoring result sent by the relay UE may be the DRB ID or RLC channel ID and the corresponding QoS monitoring result.

The remaining steps are the same as those of the application embodiment in FIG. 7 , and repeated descriptions are not repeated in this application embodiment.

Similar to the application embodiment in FIG. 7 , in this embodiment of the application, the base station may also send the mapping relationship between DRB and QFI and/or the mapping relationship between SLRB and PFI to the relay UE, and send the corresponding QoS parameters to the relay. In this way, when the relay UE establishes the SLRB1 configuration with the remote UE, the relay UE can map the QoS parameters of the DRB1 to the SLRB1, so that the relay UE can monitor the QoS flow that needs to be monitored. Similarly, for SLRB1, the existing PC5 RLC layer can be enhanced, or an additional PC5 adaptation layer can be added.

The method provided by the embodiment of the present application can enable the relay UE to generate a separate SLRB according to the identifier of the QoS flow that needs to be monitored for QoS and the DRB configuration sent by the base station, so that the identification of the QoS flow that needs to be monitored can be monitored during the communication process. QoS parameters are monitored, and feedback messages are sent to the base station according to the monitoring results, so that when the quality of the side link between terminal devices does not meet the requirements, the QoS parameters of the side link can be changed, thus ensuring end-to-end communication quality requirements of the terminal.

FIG. 9 shows a schematic flowchart of another relay device monitoring QoS according to an embodiment of the present application. As shown in FIG. 9 , the UE within the network coverage obtains the ProSe communication parameter configuration from the PCF for pre-configuration, including the default QoS parameters used by the ProSe application, and some ProSe applications can use the optional QoS parameter configuration.

S901, UE1 and UE2 establish a connection through a relay UE.

The above steps belong to the prior art, and are not described in detail in this embodiment of the present application.

S902a, UE1 and/or UE2 instructs the relay UE to establish separate SLRBs for UE1 and UE2 for the PFI (eg, GBR or delay-critical GBR QoS Flow) requiring QoS monitoring according to the preconfigured parameters obtained from the PCF, and informs QoS parameter information that the relay UE needs to monitor. The QoS parameter information may include a specific QoS parameter and its corresponding first threshold of the QoS parameter, or if there are multiple specific QoS parameters, there may be multiple corresponding QoS parameters. Thresholds (eg, GFBR, PDB, PER, etc.), or QoS parameter information may also include AQP for side links, etc. It should be understood that the data flows sent by UE1 and UE2 may belong to different service flows. Therefore, UE1 and UE2 are required to instruct the relay UE to establish SLRBs for the QoS flows requiring QoS monitoring respectively. Specifically, UE1 and UE2 determine the PFI identifier of the QoS flow (such as GBR or Delay-critical GBR QoS flow) that needs to perform QoS monitoring according to the preconfigured parameters, and send the PFI identifier of the QoS flow that needs to be monitored for QoS to the relay UE, and instruct it to establish a separate SLRB for this QoS flow. Optionally, UE1 and UE2 may also send indication information to instruct the relay UE to establish separate SLRBs for UE1 and UE2.

Specifically, in the prior art, UE1 and UE2 will send the PFI identifier used in the PC5 link to the relay UE to establish a PC5 connection with the relay UE respectively. There is no difference, the relay UE cannot perceive which QoS flows corresponding to the PFIs need to be monitored, and thus cannot establish a separate SLRB for the QoS flows that need to be monitored. When the relay UE is used, the relay UE is informed that the PFI identity of the SLRB needs to be established separately. For example, the UE1 informs the relay UE that the PFI1 is the PFI identity that needs to establish the SLRB separately, and the FPI2 is the PFI identity that does not need to establish the SLRB separately. The following UE can independently establish SLRB1 for PFI1, and the rest can correspond to SLRB2 without the need to establish the PFI identifier of the SLRB; correspondingly, in the process of establishing a PC5 connection with UE2, the relay UE also needs to establish a The binding relationship between the PFI identifier and the SLRB is established with the UE2 to establish a PC5 link. For example, SLRB1 corresponds to SLRB3, and the other SLRB2 identifiers that do not need to be monitored correspond to SLRB4. In this way, in the subsequent packet forwarding process, the relay UE can QoS parameters are monitored for SLRB 1 and SLRB 3.

S902b, the relay UE applies to the base station for SLRB configuration. Specifically, according to the prior art, the relay UE sends a request message to the base station to request to obtain the SLRB configuration, and the request message may carry the PC5 QoS profile. The difference is that in the embodiment of the present application, the relay UE also needs to carry PFI identifier for QoS monitoring, so that the relay UE can establish a separate SLRB for the QoS flow that needs to be monitored for QoS.

S903, the relay UE and the remote UE monitor the QoS parameters in the sidelink, such as GFBR, delay, packet loss rate, etc., during the PC5 communication process.

S904, the relay UE judges whether the link quality obtained by monitoring and corresponding to the separately established SLRB and the current QoS parameter meet the current QoS parameter threshold requirement (eg, the current GFBR cannot be satisfied, or the PER cannot be satisfied). Further, if the relay UE also obtains the AQP value in step S902a, the relay UE may judge whether there is an AQP value that can satisfy the current link quality according to the obtained AQP value.

S905a, when the relay UE judges that the link quality of the SLRB cannot support the current QoS parameters, it can send a message to UE1 and UE2 through an RRC message, and the message can carry the SLRB ID/RLC channel ID and the indication that the QoS parameters cannot meet the requirements. It should be understood that the relay UE can only see the information of the RLC layer, and the RLC layer includes the corresponding relationship between the SLRB ID and the RLC Channel ID. Therefore, the above-mentioned correspondence between SLRB 1 and SLRB 3 can also be the correspondence between RLC Channel 1 (RLC layer in SLRB 1) and RLC Channel 3 (RLC layer in SLRB 3). Or when UE2 sends a message, it can also carry the corresponding RLC channel ID. Optionally, the message may also carry currently supportable QoS parameters, and further, may also indicate the supportable AQP identifier.

S905b, UE1 and UE2 can choose to disconnect from the peer UE according to the message sent by the relay UE, or can also change the configuration according to the QoS carried in the message sent by the relay UE.

S906, UE1 and UE2 send the updated QoS parameters to the relay UE through an RRC message, and carry the SLRB ID for changing the QoS parameters and the corresponding QoS parameters in the message.

The embodiments of the present application are applied in the UE-to-UE scenario, by instructing the relay device to establish separate SLRB configuration information for the opposite UE, so that the relay UE can monitor the link quality during the communication process, and can monitor the link quality during the communication process. When the requirement is not met, a change request is issued, so that the QoS parameters of the side link can be changed, thereby ensuring the end-to-end transmission quality requirement.

FIG. 10 shows a schematic flowchart of a terminal device monitoring QoS according to an embodiment of the present application. As shown in FIG. 10 , the embodiment of the present application is similar to the embodiment of the application in FIG. 7 and FIG. 8 , the difference is that the embodiment of the present application uses a terminal device (a remote UE in the embodiment of the present application) to communicate with the relay device. Monitor the communication quality of the sidelink with the remote device, and send the monitoring results to the base station, so that the base station can adjust the QoS parameters of the sidelink when the communication quality of the sidelink does not meet the requirements. Changes are made to ensure end-to-end business requirements.

S1001 to S1008 are the same as the corresponding steps in FIG. 7 to FIG. 8 , which are not repeated in this embodiment of the present application.

S1009, the base station sends the identification information and QoS parameter information of the QoS flow that needs to be monitored for QoS to the remote UE. Specifically, the base station determines the QFI (for example, GBR or Delay-critical GBR QoS flow) that needs to be monitored for QoS according to the QoS configuration in the N2 message, and sends the QoS configuration corresponding to the QFI or the QoS parameter information that needs to be monitored to the remote For the UE, optionally, the base station may also carry indication information to instruct the remote UE to perform QoS monitoring on the data packets of the QFI.

It should be understood that since the base station maps QFI and DRB at the SDAP layer, and the SDAP layer between the base station and the remote UE is directly connected, therefore, the remote UE can perceive the QoS flow granularity, so that the QoS flow can be obtained from the QoS flow. The granularity monitors the communication quality of the side link.

S1010 to S1013 are the same as the corresponding steps in FIG. 7 to FIG. 8 , which are not repeated in this embodiment of the present application.

S1014, when the remote UE receives the data packet forwarded by the relay and forwards the base station, according to the instruction of the base station, counts the QoS conditions that can be supported by the data flow corresponding to the QFI, such as GFBR, delay, packet loss rate, etc. For the specific monitoring process, refer to the above embodiment description of.

S1015 , when the remote UE finds that the data flow corresponding to the QFI cannot support the current QoS parameter, it sends a notification to the base station through an RRC message, the message carries the QFI identifier, and the QoS parameter cannot satisfy the indication. Optionally, the message may also carry currently supported QoS parameters. For Alternative QoS, it may indicate the supported AQP identifier.

The remaining steps are the same as the corresponding steps in FIG. 7 to FIG. 8 , and are not repeated in this embodiment of the present application.

The embodiments of the present application are applied in the UE-to-network scenario, by instructing the remote UE to monitor the QoS parameters in the sidelink, and requesting changes when the QoS parameters cannot meet the requirements, thereby ensuring the end-to-end transmission quality requirements .

FIG. 11 shows a schematic flowchart of another terminal device monitoring QoS according to an embodiment of the present application. As shown in FIG. 11 , step S1101 is the same as the content in the embodiment of the application in FIG. 9 , which is not repeated in the embodiment of the present application.

S1102, UE1 and UE2 instruct the peer UE to monitor the corresponding data flow for the PFI (for example, GBR or Delay-critical GBR QoS Flow) that needs to be monitored for QoS according to the preconfigured QoS parameters. It should be understood that because the SDAP layer between UE1 and UE2 is the same, UE1 and UE2 can perceive the PFI granularity of the communication link between the two UEs.

S1103, UE1 and UE2 monitor the data flow corresponding to the PFI that needs to be monitored, such as GFBR, delay, packet loss rate, etc., during the PC5 communication process.

S1104, UE1 and UE2 judge whether the data flow corresponding to the QFI to be monitored meets the current QoS parameter requirements.

S1105a, when UE1 or UE2 finds that the data flow corresponding to a certain QFI cannot support the current QoS parameters, it sends a change request to the opposite UE (UE2 or UE1) through an RRC message, the message carries the QFI identifier, and the QoS parameters cannot meet the indication. Optionally, the currently supported QoS parameters, for the Alternative QoS situation, can indicate the supported AQP identifier.

S1105b, the opposite UE decides to disconnect or change the QoS configuration according to the received RRC message.

S1106, UE1 and UE2 send the updated QoS parameters to the peer UE through an RRC message, and carry the QFI identifier for changing the QoS parameters and the corresponding QoS parameters in the messages.

The embodiment of the present application is applied to the UE-to-UE scenario, and the PFI that needs to be monitored for QoS is determined through the acquired pre-configuration and the corresponding monitoring is performed. When the monitoring result does not meet the requirements, a change request is sent to the opposite UE, thereby End-to-end data transmission requirements can be guaranteed.

FIG. 12 shows a schematic diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application. As shown in FIG. 12 , the apparatus 1200 includes a first acquiring module 1210 , a first processing module 1220 and a first sending module 1230 . The apparatus 1200 may be configured to implement the functions of receiving, processing, and sending messages of the first communication device involved in any of the foregoing method embodiments. For example, the apparatus 1200 may be a relay device or a terminal device. In an implementation manner of the apparatus 1200, the apparatus 1200 includes a unit for implementing any step or operation in the foregoing method embodiments, and the unit may be implemented by hardware, software, or hardware combined with software. accomplish.

The apparatus 1200 may process the message as the first communication device, and execute the steps of processing the request message by the first communication device in the foregoing method embodiments. The first obtaining module 1210 and the first sending module 1230 can be used to support the apparatus 1200 to communicate, for example, to perform the sending/receiving actions performed by the first communication device in FIG. 4 to FIG. 6 , the first processing module 1220 It can be used to support the apparatus 1200 to perform the processing actions in the above-mentioned methods, for example, perform the processing actions performed by the first communication device in FIGS. 4 to 6 . Specifically, refer to the following description:

The first acquisition module is used to acquire the first mapping relationship between the QoS parameters and the identification information of the first channel, and the first channel is used to transmit data between the relay device and the terminal device; the first processing module is used to monitor the QoS parameter of the first channel; the first processing module is further configured to: determine that the QoS parameter of the first channel does not meet a preset condition, and the first sending module is configured to send When the QoS parameter of the channel does not meet the preset condition, first information is sent, where the first information is used to indicate that the QoS parameter of the first channel does not meet the preset condition.

Optionally, the first channel includes: a side link radio bearer SLRB, or a radio link control link RLC channel between the relay device and the terminal device.

Optionally, the first obtaining module is specifically configured to: receive the first mapping relationship from the base station.

Optionally, the first acquisition module is specifically configured to: receive a second mapping relationship between the identification information of the second channel of the base station and the QoS parameter, and the second channel is used for the relay device and the base station to transmit data; the first processing module is further configured to: allocate the first channel to the second channel; establish the first mapping relationship.

Optionally, the first information includes an identifier of the second channel.

Optionally, the second channel includes: a data radio bearer DRB, or a radio link layer control channel RLC channel between the relay device and the base station.

Optionally, the first sending module is specifically configured to: send the first information to the base station.

Optionally, the first obtaining module is specifically configured to: receive a first mapping relationship between the QoS parameter and the identification information of the QoS flow from the terminal device; the first processing module is further configured to: provide the The identification information of the QoS flow allocates the first channel; and establishes the first mapping relationship.

Optionally, the first communication device is the relay device.

Optionally, the first channel includes a QoS flow.

Optionally, the first obtaining module is further configured to: obtain indication information, where the indication information is used to instruct the apparatus to monitor the QoS parameter of the first channel.

Optionally, the first communication device is the terminal device, and the first acquisition module is specifically configured to: receive the first mapping relationship from the base station or the opposite terminal device, wherein the device obtains the first mapping relationship through the The relay device communicates with the opposite terminal device.

Optionally, the first information further includes identification information of the first channel.

Optionally, the first sending module is specifically configured to: send the first information to the base station, or send the first information to the opposite terminal device.

Optionally, the first information includes the value of the QoS parameter of the first channel when the preset condition is not met.

Optionally, the QoS parameters include optional QoS configuration AQP information.

Optionally, the first sending module is specifically configured to: send a first message, where the first message includes the first information, and the first message is used to instruct to change the QoS configuration of the first channel.

FIG. 13 shows a schematic diagram of another apparatus for monitoring quality of service QoS according to an embodiment of the present application. As shown in FIG. 13 , the apparatus 1300 includes a second sending module 1310 and a second receiving module 1320 . The apparatus 1300 may be used to implement the functions of receiving, processing and sending messages of the second communication device involved in any of the foregoing method embodiments. For example, the apparatus 1300 may be a base station or a target UE. In an implementation manner of the apparatus 1300, the apparatus 1300 includes a unit for implementing any step or operation in the foregoing method embodiments, the unit may be implemented by hardware, may be implemented by software, or may be implemented by combining hardware with software accomplish.

The apparatus 1300 may process the message as the second communication device, and execute the steps of processing the message by the second communication device in the foregoing method embodiments. The second sending module 1310 and the second receiving module 1320 can be used to support the apparatus 1300 to communicate, for example, perform the sending/receiving actions performed by the first relay device in FIG. 4 to FIG. 6 , optionally, the apparatus 1300 The second obtaining module may also be included, which may be configured to support the apparatus 1300 to perform the obtaining action in the above method, for example, execute the processing action executed by the second communication device in FIGS. 4 to 6 . Specifically, refer to the following description:

The second sending module is used to send the first mapping relationship between the QoS parameter and the identification information of the first channel, and the first channel is used to transmit data between the relay device and the terminal device; the second receiving module is used to prepare Receive first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.

Optionally, the apparatus further includes: a second obtaining module, configured to obtain identification information of a second channel, where the second channel is used to transmit data between the relay device and the base station; the second processing The module is configured to allocate the first channel to the second channel; the second processing module is further configured to: establish the first mapping relationship.

Optionally, the second receiving module is specifically configured to: receive the first information from the relay device.

Optionally, the first channel includes a QoS flow.

Optionally, the second receiving module is specifically configured to: receive the first information from the terminal device or the relay device.

Optionally, the second sending module is further configured to: send indication information to the terminal device, where the indication information is used to instruct the first communication device to monitor the QoS parameter of the first channel.

FIG. 14 shows a schematic diagram of another apparatus for monitoring quality of service QoS according to an embodiment of the present application. As shown in FIG. 14 , the apparatus 1400 includes a third sending module 1410 and a third receiving module 1420 . The apparatus 1400 may be used to implement the functions of receiving, processing, and sending messages of the third communication device involved in any of the foregoing method embodiments. For example, the apparatus 1400 may be a third communication device or a base station. In an implementation manner of the apparatus 1400, the apparatus 1400 includes a unit for implementing any step or operation in the foregoing method embodiments, and the unit may be implemented by hardware, software, or hardware combined with software. accomplish.

The apparatus 1400 may process the message as the third communication device, and execute the steps of processing the message by the third communication device in the foregoing method embodiments. The third sending module 1410 and the third receiving module 1420 can be used to support the apparatus 1400 to communicate, for example, to perform the sending/receiving actions performed by the second terminal device in FIG. 4 to FIG. 6 . Specifically, refer to the following description:

The third sending module is used to send the second mapping relationship between the QoS parameter and the identification information of the second channel, and the second channel is used to transmit data between the relay device and the base station; the third receiving module is used to receive the first A piece of information, where the first information is used to indicate that the QoS parameter of the second channel does not meet a preset condition.

Optionally, the third receiving module is specifically configured to: receive the first information from the relay device.

Optionally, the apparatus is the base station.

FIG. 15 shows a schematic structural diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application. The communication apparatus 1500 can be used to implement the method related to the first communication device described in the above method embodiments. The communication device 1500 may be a chip.

The communication device 1500 includes one or more processors 1501 that can support the communication device 1500 to implement the communication methods in FIGS. 4 to 6 . The processor 1501 may be a general purpose processor or a special purpose processor. For example, the processor 1501 may be a central processing unit (CPU) or a baseband processor. The baseband processor may be used to process communication data, and the CPU may be used to control communication devices (eg, network equipment, terminal equipment, or chips), execute software programs, and process data of software programs. The communication device 1500 may further include a transceiving unit 1505 for implementing signal input (reception) and output (transmission).

For example, the communication device 1500 may be a chip, and the transceiver unit 1505 may be an input and/or output circuit of the chip, or the transceiver unit 1505 may be a communication interface of the chip, and the chip may serve as a terminal device or a network device or other wireless communication components of the device.

The communication device 1500 may include one or more memories 1502 on which a program 1504 is stored. The program 1504 can be executed by the processor 1501 to generate instructions 1503, so that the processor 1501 executes the methods described in the above method embodiments according to the instructions 1503. Optionally, data may also be stored in the memory 1502 . Optionally, the processor 1501 may also read data stored in the memory 1502 , the data may be stored at the same storage address as the program 1504 , or the data may be stored at a different storage address from the program 1504 .

The processor 1501 and the memory 1502 may be provided separately or integrated together, for example, integrated on a single board or a system on chip (system on chip, SOC).

The communication device 1500 may further include a transceiver unit 1505 and an antenna 1506 . The transceiver unit 1505 may be called a transceiver, a transceiver circuit or a transceiver, and is used to implement the transceiver function of the communication device through the antenna 1506 .

It should be understood that, the steps of the above method embodiments may be implemented by logic circuits in the form of hardware or instructions in the form of software in the processor 1501 . The processor 1501 may be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , for example, discrete gates, transistor logic devices, or discrete hardware components.

FIG. 16 shows another schematic structural diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application. The communication apparatus 1600 can be used to implement the method for the second communication device described in the above method embodiments. The communication device 1600 may be a chip.

The communication device 1600 includes one or more processors 1601 that can support the communication device 1600 to implement the communication methods in FIGS. 4 to 6 . The processor 1601 may be a general purpose processor or a special purpose processor. For example, the processor 1601 may be a central processing unit (CPU) or a baseband processor. The baseband processor may be used to process communication data, and the CPU may be used to control communication devices (eg, network equipment, terminal equipment, or chips), execute software programs, and process data of software programs. The communication device 1600 may further include a transceiving unit 1605 to implement signal input (reception) and output (transmission).

For example, the communication device 1600 may be a chip, and the transceiver unit 1605 may be an input and/or output circuit of the chip, or the transceiver unit 1605 may be a communication interface of the chip, and the chip may serve as a terminal device or a network device or other wireless communication components of the device.

The communication device 1600 may include one or more memories 1602 on which a program 1604 is stored. The program 1604 can be executed by the processor 1601 to generate instructions 1603, so that the processor 1601 executes the methods described in the above method embodiments according to the instructions 1603. Optionally, data may also be stored in the memory 1602 . Optionally, the processor 1601 may also read data stored in the memory 1602 , the data may be stored at the same storage address as the program 1604 , or the data may be stored at a different storage address from the program 1604 .

The processor 1601 and the memory 1602 can be provided separately, or can be integrated together, for example, integrated on a single board or a system on chip (system on chip, SOC).

The communication device 1600 may further include a transceiver unit 1605 and an antenna 1606 . The transceiver unit 1605 may be referred to as a transceiver, a transceiver circuit or a transceiver, and is used to implement the transceiver function of the communication device through the antenna 1606 .

It should be understood that, the steps in the above method embodiments may be implemented by logic circuits in the form of hardware or instructions in the form of software in the processor 1601 . The processor 1601 may be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , for example, discrete gates, transistor logic devices, or discrete hardware components.

FIG. 17 shows a schematic structural diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application. The communication apparatus 1700 can be used to implement the method for the third communication device described in the above method embodiments. The communication device 1700 may be a chip.

The communication device 1700 includes one or more processors 1701 that can support the communication device 1700 to implement the communication methods in FIGS. 4 to 6 . The processor 1701 may be a general purpose processor or a special purpose processor. For example, the processor 1701 may be a central processing unit (CPU) or a baseband processor. The baseband processor may be used to process communication data, and the CPU may be used to control communication devices (eg, network equipment, terminal equipment, or chips), execute software programs, and process data of software programs. The communication device 1700 may further include a transceiving unit 1705 to implement signal input (reception) and output (transmission).

For example, the communication device 1700 may be a chip, and the transceiver unit 1705 may be an input and/or output circuit of the chip, or the transceiver unit 1705 may be a communication interface of the chip, and the chip may serve as a terminal device or a network device or other wireless communication components of the device.

The communication device 1700 may include one or more memories 1702 on which a program 1704 is stored. The program 1704 can be executed by the processor 1701 to generate instructions 1703, so that the processor 1701 executes the methods described in the above method embodiments according to the instructions 1703. Optionally, data may also be stored in the memory 1702 . Optionally, the processor 1701 may also read data stored in the memory 1702 , the data may be stored at the same storage address as the program 1704 , or the data may be stored at a different storage address from the program 1704 .

The processor 1701 and the memory 1702 can be provided separately, or can be integrated together, for example, integrated on a single board or a system on chip (system on chip, SOC).

The communication device 1700 may further include a transceiver unit 1705 . The transceiver unit 1705 may be referred to as a transceiver, a transceiver circuit, or a transceiver.

It should be understood that, the steps in the above method embodiments may be implemented by logic circuits in the form of hardware or instructions in the form of software in the processor 1701 . The processor 1701 may be a CPU, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , for example, discrete gates, transistor logic devices, or discrete hardware components.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the modules is only a logical function division, and there may be other division manners in actual implementation.

If the methods in the embodiments of the present application are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the technical solutions or technical solutions of the present application are A part may be embodied in the form of a software product, and the computer software product is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the various embodiments of the present application. all or part of the steps of the method. The storage medium at least includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes. The above are only specific implementations of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for monitoring quality of service (QoS), comprising:

The first communication device acquires a first mapping relationship between the QoS parameter and the identification information of the first channel, where the first channel is used to transmit data between the relay device and the terminal device;

The first communication device monitors the QoS parameter of the first channel;

When the first communication device determines that the QoS parameter of the first channel does not meet the preset condition, it sends first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet the preset condition. Set conditions.
The method of claim 1, wherein the first channel comprises:

The side link radio bearer SLRB, or the radio link control link RLC channel between the relay device and the terminal device.
The method according to claim 1 or 2, wherein the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel comprises:

The first communication device receives the first mapping relationship from the base station.
The method according to claim 1 or 2, wherein the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel comprises:

receiving, by the first communication device, a second mapping relationship between the identification information of the second channel of the base station and the QoS parameter, where the second channel is used to transmit data between the relay device and the base station;

assigning the first channel to the second channel by the first communication device;

The first communication device establishes the first mapping relationship.
The method of claim 4, wherein the first information includes an identifier of the second channel.
The method according to claim 4 or 5, wherein the second channel comprises:

The data radio bearer DRB, or the radio link layer control channel RLC channel between the relay device and the base station.
The method according to any one of claims 3-6, wherein the sending the first information comprises:

The first communication device sends the first information to the base station.
The method according to claim 1, wherein the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel comprises:

The first communication device receives the first mapping relationship between the QoS parameter and the identification information of the QoS flow from the terminal device;

The first communication device allocates the first channel for the identification information of the QoS flow;

The first communication device establishes the first mapping relationship.
The method according to any one of claims 1-8, wherein the first communication device is the relay device.
The method of claim 1, wherein the first channel comprises a QoS flow.
The method according to claim 2 or 10, wherein the method further comprises:

The first communication device acquires indication information, where the indication information is used to instruct the first communication device to monitor the QoS parameter of the first channel.
The method according to claim 10 or 11, wherein the first communication device is the terminal device, and the acquiring the first mapping relationship between the QoS parameter and the identification information of the first channel comprises:

The first communication device receives the first mapping relationship from the base station or the opposite terminal device, wherein the first communication device communicates with the opposite terminal device through the relay device.
The method according to any one of claims 10-12, wherein the first information further includes identification information of the first channel.
The method according to any one of claims 10-13, wherein the sending the first information comprises:

The first communication device sends the first information to the base station, or,

The first communication device sends the first information to the opposite terminal device.
The method according to any one of claims 1-14, wherein the first information includes a value of the QoS parameter of the first channel when the preset condition is not satisfied.
The method according to any one of claims 1-15, wherein the QoS parameters include optional QoS configuration AQP information.
The method according to any one of claims 1-16, wherein the sending the first information comprises:

The first communication device sends a first message, where the first message includes the first information, and the first message is used to instruct to change the QoS configuration of the first channel.
A method for monitoring quality of service (QoS), comprising:

The second communication device sends a first mapping relationship between the QoS parameter and the identification information of the first channel, where the first channel is used to transmit data between the relay device and the terminal device;

The second communication device receives first information, where the first information is used to indicate that the QoS parameter of the first channel does not meet a preset condition.
The method of claim 18, wherein the first channel comprises:

The side link radio bearer SLRB, or the radio link control link RLC channel between the relay device and the terminal device.
The method according to claim 18 or 19, wherein before the second communication device sends the first mapping relationship between the QoS parameter and the identification information of the first channel, the method further comprises:

obtaining, by the second communication device, identification information of a second channel, where the second channel is used to transmit data between the relay device and the base station;

assigning the first channel to the second channel by the second communication device;

The second communication device establishes the first mapping relationship.
The method of claim 20, wherein the second channel comprises:

The data radio bearer DRB, or the radio link layer control channel RLC channel between the relay device and the base station.
The method according to any one of claims 18-21, wherein the receiving, by the second communication device, the first information comprises:

The second communication device receives the first information from the relay device.
19. The method of claim 18, wherein the first channel comprises a QoS flow.
The method according to claim 23, wherein receiving the first information by the second communication device comprises:

The second communication device receives the first information from the terminal device or the relay device.
The method according to claim 23 or 24, wherein the second communication device sends indication information to the terminal device, and the indication information is used to instruct the first communication device to monitor the first channel. the QoS parameters.
A communication device, characterized in that, the device is used to execute the method of any one of claims 1-17.
A communication device, characterized in that the device is used to execute the method of any one of claims 18-25.
A computer-readable storage medium, characterized in that the computer-readable medium stores a computer program for execution by a device, the computer program comprising a method for performing the method according to any one of claims 1-25 program instructions.
A chip, characterized in that the chip includes a processor and a data interface, and the processor reads program instructions stored on a memory through the data interface, so as to execute the program described in any one of claims 1-25 Methods.