CN114173368A

CN114173368A - Method for monitoring QoS

Info

Publication number: CN114173368A
Application number: CN202010945243.8A
Authority: CN
Inventors: 邢玮俊; 吴问付; 张迪
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2022-03-11
Also published as: WO2022052851A1

Abstract

The application provides a method for monitoring quality of service (QoS), which comprises the following steps: the method comprises the steps that first communication equipment obtains a first mapping relation between QoS parameters and identification information of a first channel; the first communication device monitoring the QoS parameter of the first channel; and when the first communication equipment determines that the QoS parameter of the first channel does not meet the preset condition, sending first information. According to the technical scheme provided by the application, the relay UE or the remote UE can monitor the communication quality between the relay UE and the remote UE in the communication process, and the message is sent when the communication quality of the relay UE or the remote UE does not meet the preset condition, so that the network equipment or the opposite terminal equipment can acquire the link quality between the remote UE and the relay equipment, the QoS parameter can be changed when the link quality of the network equipment or the opposite terminal equipment does not meet the requirement, and the end-to-end QoS requirement is further ensured.

Description

Method for monitoring QoS

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for monitoring quality of service QoS.

Background

In order to improve the utilization rate of wireless spectrum and provide cellular network Services for terminals out of the coverage of cellular network, the cellular communication network introduces proximity-based Services (ProSe) communication in which a User Equipment (UE) in close proximity can directly establish a communication link without forwarding the communication through a base station. In the UE-to-UE Relay, a remote UE (remote UE) may establish a connection with a Radio Access Network (RAN) through a Relay device, and in the UE-to-UE Relay, two UEs may establish a connection through the Relay device, and the Relay device forwards respective communication data for the two UEs through a PC5 interface.

When the remote UE is connected to the network device or the target UE through the relay device, two communication links exist, that is, a communication link between the remote UE and the relay device, and a communication link between the relay device and the base station RAN or the UE, data streams of the two links are transmitted based on QoS streams, currently, the base station RAN or the target UE may monitor the communication quality of the communication link between the relay device and the base station RAN or the target UE, and when the base station RAN or the target UE monitors that the quality of a wireless air interface cannot meet the requirement, the base station RAN or the target UE may notify the core network element SMF to change a corresponding QoS parameter, or change a QoS parameter between the target UE and the relay UE.

However, the base station RAN or the target UE cannot sense the communication quality of the link between the relay device and the remote UE, and when the communication quality between the relay device and the remote UE changes, for example, the communication quality between the relay device and the base station RAN or the target UE is obtained by the base station RAN or the target UE, but the communication quality between the relay device and the remote UE is not satisfactory for transmission, because the base station RAN or the target UE cannot obtain the communication quality change in another link, the network device or the target UE cannot adjust the corresponding QoS parameter according to the change situation, and thus the end-to-end QoS requirement cannot be guaranteed.

Disclosure of Invention

The method for monitoring the QoS (quality of service) provided by the application monitors the communication quality between the relay UE and the remote UE in the communication process through the relay UE or the remote UE, and sends the first information when the communication quality does not meet the preset condition, so that the network equipment or the target UE can know that the communication quality between the current remote UE and the relay UE does not meet the preset condition according to the first information, and the corresponding QoS parameter can be adjusted according to the change condition, thereby ensuring the end-to-end QoS requirement.

In a first aspect, a method for monitoring quality of service QoS is provided, where the method includes: the method comprises the steps that first communication equipment obtains a first mapping relation between QoS parameters and identification information of a first channel, wherein the first channel is used for transmitting data between relay equipment and terminal equipment; the first communication device monitoring the QoS parameter of the first channel; and when the first communication equipment determines that the QoS parameter of the first channel does not meet a preset condition, sending first information, wherein the first information is used for indicating that the QoS parameter of the first channel does not meet the preset condition.

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

The communication quality between the relay UE and the remote UE is monitored in the communication process through the relay UE or the remote UE, and the first information is sent when the communication quality does not meet the preset condition, so that the network equipment or the target UE can know that the communication quality between the current remote UE and the relay UE does not meet the preset condition according to the first information, and accordingly, the corresponding QoS parameters can be adjusted according to the change condition, and the end-to-end QoS requirement is guaranteed.

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

Alternatively, 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 certain implementations of the first aspect, 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.

By acquiring the mapping relationship between the SLRB or RLC and the QoS parameter, the relay device or the remote UE may monitor the communication quality of the first channel.

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

With reference to the first aspect, in some implementation manners of the first aspect, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receives the first mapping relationship from a base station.

Optionally, the QoS parameter and the identification information of the first channel may be sent to the first communication device after the base station has configured the QoS parameter and the identification information of the first channel.

The first communication equipment is configured with a mapping relation comprising a QoS parameter and identification information of a first channel, so that the first communication equipment can monitor the communication quality between the remote UE and the relay equipment according to the mapping relation, and can send a message to inform the base station or the target UE when the communication quality between the remote UE and the relay equipment does not meet a preset condition, and the communication quality does not meet the preset condition, so that the base station or the target UE can acquire the condition that the communication quality does not meet the preset condition, correspondingly change the QoS parameter, and further ensure the end-to-end QoS requirement.

With reference to the first aspect, in some implementation manners of the first aspect, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication equipment receives a second mapping relation between the identification information of a second channel from the base station and the QoS parameter, wherein the second channel is used for transmitting data between the relay equipment and the base station; the first communication device allocates the first channel to the second channel; the first communication device establishes the first mapping relationship.

Optionally, the first communication device may also complete the mapping relationship between the QoS parameter and the identification information of the first channel by itself. Therefore, the first communication equipment can monitor the communication quality between the remote UE and the relay equipment according to the mapping relation, and can send a message to inform the base station or the target UE when the communication quality between the remote UE and the relay equipment does not meet the preset condition, so that the base station or the target UE can acquire the condition that the communication quality does not meet the preset condition, correspondingly change the QoS parameter and further ensure the end-to-end QoS requirement.

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

Optionally, when the mapping relationship is completed by the first communication device itself, since the identifier of the base station for the first channel is unknown, the first communication device needs to carry the identifier of the second channel in the first information, so that the base station can obtain the identifier information of the channel that does not satisfy the preset condition, so as to change the corresponding QoS parameter, thereby ensuring the end-to-end QoS requirement.

With reference to the first aspect, in certain 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 transmits the first information to the base station.

By sending the first information to the base station, the base station can acquire the communication quality condition between the relay UE and the remote UE, and change the corresponding QoS parameter under the condition that the communication quality does not meet the preset condition, thereby ensuring the end-to-end QoS requirement.

With reference to the first aspect, in some implementation manners of the first aspect, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication equipment receives the QoS parameters from the terminal equipment and a first mapping relation of identification information of QoS flows; the first communication equipment allocates the first channel for the identification information of the QoS flow; the first communication device establishes the first mapping relationship.

Alternatively, in a UE-to-UE scenario, a first communication device (e.g., a target UE, which may be understood as a role of a remote UE in a UE-to-network scenario) acquires a first mapping relationship including a QoS flow from a terminal device (e.g., a source UE, which may be understood as a role of a base station in a UE-to-network scenario), and allocates a first channel to the QoS flow, and then, the first communication device may monitor communication quality between the target UE and a relay device according to the first mapping relationship, and when the communication quality therebetween does not satisfy a preset condition, may send a message to inform the source UE that the communication quality does not satisfy the preset condition, so that the source UE may acquire a situation in which the communication quality does not satisfy the preset condition, and change a QoS parameter accordingly, which in turn guarantees end-to-end QoS requirements.

Optionally, the sending the first information includes: and the first communication equipment sends the first information to the terminal equipment.

Optionally, in a UE-to-UE scenario, the first communication device may send the monitored communication quality condition to the terminal device, so that the terminal device may obtain the communication quality condition of the PC5 link, and change the QoS parameter according to the communication quality condition, thereby ensuring the end-to-end QoS requirement.

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

The communication quality of a PC5 link between the relay equipment and the remote UE is monitored by the relay equipment in the communication process, and a message is sent to the base station or the target UE when the communication quality does not meet the preset condition, so that the base station or the target UE can know the communication quality condition of the PC5 link and change corresponding QoS parameters when the communication quality does not meet the preset condition, and the end-to-end QoS requirement is further ensured.

With reference to the first aspect, in certain implementations of the first aspect, the first channel includes a QoS flow.

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

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the first communication device obtains indication information, where the indication information is used to indicate the first communication device to monitor the QoS parameter of the first channel.

Optionally, after receiving the identification information of the QoS flow, the first communication device may autonomously perform monitoring on the QoS parameter corresponding to the identification of the QoS flow, or optionally, the first communication device may also receive the indication information, and perform monitoring on the QoS parameter corresponding to the identification of the QoS flow according to the indication of the indication information. With reference to the first aspect, in certain implementations of the first aspect, the first communication device is the terminal device, the first channel includes a QoS flow, and the obtaining a first mapping relationship between a QoS parameter and identification information of the first channel includes: and the first communication equipment receives the first mapping relation from a base station or opposite terminal equipment, wherein the first communication equipment communicates with the opposite terminal equipment through the relay equipment.

Optionally, when the first communication device is a terminal device (e.g., a remote UE), the terminal device may monitor the communication quality of the PC5 link, and send a message to the base station or the target UE when the communication quality does not satisfy a preset condition, so that the base station or the target UE may know the communication quality of the PC5 link, and change a corresponding QoS parameter when the communication quality does not satisfy the preset condition, thereby ensuring an end-to-end QoS requirement.

With reference to the first aspect, in certain 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 acquire the channel information which does not meet the preset condition, so that the subsequent QoS parameter change process can be further initiated, and the end-to-end communication is ensured.

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

By sending the first information to the base station, the base station can know that the PC5 link does not meet the preset condition, so that the base station can change the corresponding QoS parameter, and the end-to-end QoS requirement is further ensured.

With reference to the first aspect, in certain 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, in the monitoring process of the communication quality of the first channel, when finding that the communication quality of the first channel does not satisfy the preset condition, the first communication device may send, to the base station or the target UE, information that does not satisfy the preset condition, and carry the changed QoS parameter value in the information.

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

Optionally, the QoS parameter includes first optional QoS configuration, AQP, information, and the determining, by the first communications device, that the QoS parameter of the first channel does not satisfy a preset condition includes: the first communication device determining that a QoS configuration corresponding to the first AQP information of the first channel cannot be met; the method further comprises the following steps: the first communication device selects second AQP information, and a QoS configuration corresponding to the second AQP information of the first channel can be satisfied.

Optionally, when the first communication device monitors that the communication quality of the first channel does not satisfy the preset condition in the monitoring process, if the first communication device has acquired the AQP configuration, the first communication device may determine the AQP satisfying the preset condition according to the acquired AQP configuration.

Optionally, the first information comprises second AQP information, the second AQP information being used to request configuration according to the second AQP information, or being 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: the first communication device sends a first message, wherein the first message comprises the first information, and the first message is used for indicating to change the QoS configuration of the first channel.

Further, after determining that the communication quality of the first channel does not satisfy 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 may change the corresponding QoS parameter, thereby ensuring the end-to-end QoS requirement.

In a second aspect, a method for monitoring quality of service QoS is provided, the method including: the second communication equipment sends a first mapping relation between the QoS parameters and identification information of a first channel, wherein the first channel is used for transmitting data between the relay equipment and the terminal equipment; the second communication device receives first information, wherein the first information is used for indicating that the QoS parameter of the first channel does not meet a preset condition.

The mapping relation between the QoS parameters and the identification information of the channels is distributed to the communication equipment, so that the communication equipment can monitor the communication quality between the relay equipment and the terminal equipment according to the mapping relation, and further, according to the received information of the channels which do not meet the preset conditions, the second communication equipment can correspondingly change the QoS parameters corresponding to the channels, and the end-to-end QoS requirements are guaranteed.

Optionally, the mapping relationship is a mapping relationship corresponding to a QoS flow to be monitored, where 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 certain implementations of the second aspect, 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.

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 device acquires identification information of a second channel, wherein the second channel is used for transmitting 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, and at this time, 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 may monitor the communication quality according to the channel identifier, and send a message to notify the second communication device when the communication quality corresponding to the first channel does not meet the preset condition, so that the second communication device may change the QoS parameter of the first channel correspondingly, and the end-to-end QoS requirement is further ensured.

With reference to the second aspect, in certain 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 receives the first information from the relay device.

The first mapping relation sent by the embodiment of the application can 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, and further, when the quality corresponding to the first channel does not meet the preset condition, the second communication device can be informed, so that the second communication device can correspondingly change the QoS parameter of the first channel, and the end-to-end QoS requirement is further ensured.

With reference to the second aspect, in certain implementations of the second aspect, the first channel includes a QoS flow.

Optionally, since the terminal device may sense the QoS flow granularity, the second communication device may send identification information including the QoS flow, so that the terminal device may monitor according to the QoS flow, and further, when the QoS parameter corresponding to the QoS flow does not satisfy the preset condition, the second communication device may be notified, so that the second communication device may change the QoS parameter of the first channel correspondingly, and then the end-to-end QoS requirement is ensured.

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 receives the first information received from the terminal device or the relay device.

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

By sending the indication information, the first communication device can monitor the QoS parameter of the first channel, and further, the first communication device can send the result obtained by the monitoring to the second communication device, so that the second communication device can change the corresponding QoS parameter based on the channel quality condition of the first channel, thereby ensuring the end-to-end QoS requirement.

In a third aspect, a method for monitoring quality of service QoS is provided, the method comprising: the third communication equipment sends a second mapping relation between the QoS parameters and the identification information of a second channel, wherein the second channel is used for transmitting data between the relay equipment and the base station; 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 satisfy a preset condition.

Optionally, the third communication device may be a base station, and the third communication device may send the second mapping relationship, so that the relay device may monitor the QoS parameter of the second channel according to the second mapping relationship, and notify the third communication device when the QoS parameter of the second channel does not meet the preset condition, so that the third communication device may 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 certain 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 receives the first information from the relay device.

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

In a fourth aspect, an apparatus for monitoring quality of service QoS is provided, the apparatus comprising: a first obtaining module, configured to obtain a first mapping relationship between a QoS parameter and identification information of a first channel, where the first channel is used to transmit data between a relay device and a terminal device; a first processing module, configured to monitor the QoS parameter of the first channel; the first processing module is further configured to: and determining that the QoS parameter of the first channel does not meet a preset condition, wherein the first sending module is configured to send first information when the QoS parameter of the first channel does not meet the preset condition, and the first information is used for indicating that the QoS parameter of the first channel does not meet the preset condition.

With reference to the fourth aspect, in certain implementations of the fourth aspect, 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.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first obtaining module is specifically configured to: receiving the first mapping relation from a base station.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first obtaining module is specifically configured to: receiving a second mapping relation between identification information of a second channel from the base station and the QoS parameter, wherein the second channel is used for transmitting data between the relay equipment and the base station; the first processing module is further configured to: allocating the first channel to the second channel; and establishing the first mapping relation.

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

With reference to the fourth aspect, in certain 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: and sending the first information to the base station.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first obtaining module is specifically configured to: receiving a first mapping relation between the QoS parameters and identification information of QoS flows from the terminal equipment; the first processing module is further configured to: allocating the first channel for the identification information of the QoS flow; and establishing the first mapping relation.

Optionally, the first sending module is specifically configured to: and sending the first information to the terminal equipment.

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

With reference to the fourth aspect, in certain 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: acquiring indication information, wherein the indication information is used for indicating the device to monitor the QoS parameter of the first channel.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the apparatus is the terminal device, and the first obtaining module is specifically configured to: and receiving the first mapping relation from a base station or opposite terminal equipment, wherein the device communicates with the opposite terminal equipment through the relay equipment.

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: and sending the first information to a base station, or sending the first information to the opposite terminal equipment.

With reference to the fourth aspect, in certain 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 certain 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 determining that a QoS configuration corresponding to the first AQP information of the first channel cannot be met; the first processing module is further configured to: selecting second AQP information, the QoS configuration corresponding to the second AQP information of the first channel being able to be satisfied.

Optionally, the first information comprises the second AQP information, the second AQP information being used to request configuration according to the second AQP information or 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: sending a first message, wherein the first message comprises the first information, and the first message is used for indicating to change the QoS configuration of the first channel.

In a fifth aspect, there is provided an apparatus for monitoring quality of service QoS, the apparatus 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 to transmit data between a relay device and a terminal device; and the second receiving module is used for receiving first information, wherein the first information is used for indicating that the QoS parameter of the first channel does not meet a preset condition.

With reference to the fifth aspect, in certain implementations of the fifth aspect, 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.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the apparatus further comprises: 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 module is used for distributing the first channel for the second channel; the second processing module is further configured to: and establishing the first mapping relation.

With reference to the fifth aspect, in certain 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: receiving the first information from the relay device.

With reference to the fifth aspect, in certain 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: receiving 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: and sending indication information to the terminal equipment, wherein the indication information is used for indicating the first communication equipment to monitor the QoS parameter of the first channel.

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

With reference to the sixth aspect, in certain 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: receiving the first information from the relay device.

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

In a seventh aspect, a communication device is provided, which has the function of implementing the method according to the above aspects. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In an eighth aspect, there is provided a communication apparatus comprising: a processor; the processor is configured to be coupled with the memory, and to call and execute the computer program from the memory to perform the method of the above aspects or any possible implementation manner of the aspects.

In a ninth aspect, there is provided a communication apparatus comprising a processor, a memory for storing a computer program, and a processor for calling and running the computer program from the memory so that the communication apparatus performs the method of the above aspects or any possible implementation manner of the aspects.

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

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

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

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

Fig. 1 is an architectural diagram of 5G ProSe communication.

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

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

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

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

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

Fig. 7 is a flow chart illustrating QoS monitoring according to an embodiment of the present application.

Fig. 8 is a flow chart of another QoS monitoring according to an embodiment of the present application.

Fig. 9 is a flow chart of another QoS monitoring according to an embodiment of the present application.

Fig. 10 is a flow chart of another QoS monitoring according to an embodiment of the present application.

Fig. 11 is a flow chart illustrating another QoS monitoring according to an embodiment of the present application.

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

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

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

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

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

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

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD) system, a universal mobile telecommunications system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5G) system or a new radio system (UMTS), future evolution (NR), and the like.

Fig. 1 is a schematic diagram illustrating a network architecture of a communication system, where 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, a policy control network element, a network slice selection network element, a network warehouse function network element, a network data analysis network element, a unified data management network element, a unified data storage network element, an authentication service function network element, a network capability opening network element, an application function network element, and a Data Network (DN) connected to an operator network, and is applicable to this embodiment. The terminal equipment can send service data to the data network through the access network equipment and the user plane network element, and receive the service data from the data network.

The terminal equipment has a wireless transceiving function, can be deployed on land and comprises an indoor or outdoor, handheld, wearable or vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); the terminal device may be a mobile phone (mobile phone), a tablet (Pad), a computer with wireless transceiving function, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving, a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid, a wireless terminal in transportation security, a wireless terminal in smart city, a wireless terminal in home application field, etc . The terminal device may also be referred to as a User Equipment (UE), a mobile station, a remote station, and the like, and the embodiments of the present application do not limit the specific technology, the device form, and the name adopted by the terminal device.

An access network device is a device in a network for accessing a terminal device to a wireless network. The access network device may be a node in a radio access network, which may also be referred to as a base station, and may also be referred to as a Radio Access Network (RAN) node (or device). The network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), such as a conventional macro base station eNB and a micro base station eNB in a heterogeneous network scenario, or may also include a next generation Node B (gNB) in a fifth generation mobile communication technology (5th generation, 5G) New Radio (NR) system, or may also include a radio network controller (radio network controller, RNC), Node B (NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a Transmission Reception Point (TRP), a home base station (e.g., a home base station, base station B, base station unit, HNB, BBU), a baseband pool BBU port, or a WiFi Access Point (AP), and further may further or may further include a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (cloudlen) system, which is not limited in the embodiment of the present application. In a scenario of separate deployment of an access network device including a CU and a DU, the CU supports Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Service Data Adaptation Protocol (SDAP), and other protocols; the DU mainly supports a Radio Link Control (RLC), a Medium Access Control (MAC) and a physical layer protocol.

An access management network element, which is mainly used for the attachment of a terminal in a mobile network, mobility management, and tracking area update processes, terminates a Non Access Stratum (NAS) message, completes registration management, connection management, reachability management, tracking area list (TA list) allocation, mobility management, and the like, and transparently routes a Session Management (SM) message to the session management network element. In a fifth generation (5G) communication system, the access management network element may be an access and mobility management function (AMF), and in a future communication system (e.g. a 6G communication system), the mobility management network element may still be an AMF network element, or may also have other names, which is not limited in this application.

The session management network element is mainly used for session management in a mobile network, such as session establishment, modification and release. The specific functions include allocating an Internet Protocol (IP) address to the terminal, selecting a user plane network element providing a message forwarding function, and the like. In the 5G communication system, the session management network element may be a Session Management Function (SMF), and in a future communication system (e.g. a 6G communication system), the session management network element may still be an SMF network element, or may also have another name, which is not limited in this application.

The user plane network element is mainly used for processing user messages, such as forwarding, charging, legal monitoring and the like. The user plane network element may also be referred to as a Protocol Data Unit (PDU) session anchor (PSA). In a 5G communication system, the user plane network element may be a User Plane Function (UPF), and in a future communication system (e.g., a 6G communication system), the user plane network element may still be a UPF network element, or may also have other names, which is not limited in this application.

The policy control network element includes a user subscription data management function, a policy control function, a charging policy control function, quality of service (QoS) control, and the like. In a 5G communication system, the policy control network element may be a Policy Control Function (PCF), and in a future communication system (e.g. a 6G communication system), the policy control network element may still be a PCF network element, or may also have other names, which is not limited in this application.

The network slice selection functional network element is mainly used for selecting a proper network slice for the service of the terminal equipment. In the 5G communication system, the network slice selection network element may be a Network Slice Selection Function (NSSF) network element, and in a future communication system (e.g., a 6G communication system), the network slice selection network element may still be an NSSF network element, or may also have other names, which is not limited in this application.

The network warehouse function network element is mainly used for providing registration and discovery functions of the network element or services provided by the network element. In the 5G communication system, the network warehouse function network element may be a network warehouse function (NRF), and in a future communication system (e.g. 6G communication system), the network warehouse function network element may still be an NRF network element, or may also have other names, which is not limited in this application.

The network data analysis network element may collect data from various Network Functions (NF), such as a policy control network element, a session management network element, a user plane network element, an access management network element, and an application function network element (through a network capability open function network element), and perform analysis and prediction. In the 5G communication system, the network data analysis network element may be a network data analysis function (NWDAF), and in a future communication system (e.g. a 6G communication system), the network data analysis network element may still be an NWDAF network element, or may also have other names, which is not limited in this application.

And the unified data management network element is mainly used for managing the subscription information of the terminal equipment. In the 5G communication system, the unified data management network element may be a Unified Data Management (UDM), and in a future communication system (e.g. a 6G communication system), the unified data management network element may still be a UDM network element, or may also have other names, which is not limited in this application.

The unified data storage network element is mainly used for storing structured data information, wherein the structured data information comprises subscription information, strategy information and network data or service data defined by a standard format. In the 5G communication system, the unified data storage network element may be a unified data storage (UDR), and in a future communication system (e.g. a 6G communication system), the unified data storage network element may still be a UDR network element, or may also have other names, which is not limited in this application.

And the authentication service function network element is mainly used for carrying out security authentication on the terminal equipment. In the 5G communication system, the authentication service function network element may be an authentication server function (AUSF), and in a future communication system (e.g., a 6G communication system), the authentication service function network element may still be an AUSF network element, or may also have other names, which is not limited in this application.

The network capability is opened, and part of the functions of the network can be exposed to the application in a controlled manner. In the 5G communication system, the network element with an open network capability may be a network capability open function (NEF), and in a future communication system (e.g., a 6G communication system), the network element with an open network capability may still be an NEF network element, or may also have another name, which is not limited in this application.

The application function network element may provide service data of various applications to a control plane network element of a communication network of an operator, or obtain data information and control information of the network 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 a future communication system (e.g. a 6G communication system), the application function network element may still be an AF network element, or may also have other names, which is not limited in this application.

And the data network is mainly used for providing data transmission service for the terminal equipment. The data network may be a private network, such as a local area network, a Public Data Network (PDN) network, such as the Internet (Internet), or a private network co-deployed by an operator, such as an IP multimedia network subsystem (IMS) service.

It should be understood that the above network elements or functions may be network elements in a hardware device, or may be software functions running on dedicated hardware, or virtualization functions instantiated on a platform (e.g., a cloud platform). Optionally, the network element or the function may be implemented by one device, or may be implemented by multiple devices together, 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 radio spectrum utilization and provide cellular network Services to terminals outside the coverage of the cellular network, the cellular communication network introduces Proximity-based Services (ProSe) communication in which terminal devices located in close Proximity can directly establish a communication link without forwarding the communication through a base station. Fig. 1 is a schematic diagram of an architecture of 5G ProSe communication in the prior art, for example, communication between UE a, UE B and NG-RAN can be regarded as communication connection under an architecture of UE-to-Network Relay, a remote UE (i.e., UE B) can establish connection with a Radio Access Network (RAN) through a Relay device, and for example, UE a, UE B and UE C can be regarded as communication connection in an architecture of UE-to-UE Relay, UE B serves as a Relay device (Relay UE) between UE C and UE a, and respective signaling and data are forwarded to the two UEs through a PC5 interface, where UE a providing ProSe communication to UE C can be referred to as source UE, UE C accepting ProSe communication can be referred to as target UE (or UE opposite to UE a), it can be understood that source UE and target UE are distinguished from UE in the architecture of UE-to-UE Relay, the source UE and the target UE may be interchanged and may transmit data to each other.

In ProSe communication, a remote UE implements communication with a network device through a relay device, or a target UE implements communication with a source UE through a relay device. Fig. 2 shows a user plane protocol stack for a UE-to-Network Protocol Data Unit (PDU) session transmission implemented using layer 2 relay in a 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 is understood that the data in the application packet is transmitted by direct codec in both. 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 corresponds to a bearer for physical layer transmission according to a QoS parameter (QoS flow) of a data packet, that is, after encapsulation, a lower layer of the SDAP layer, that is, a Packet Data Convergence Protocol (PDCP) layer, transmits the data packet on a Radio Bearer (RB) corresponding to the QoS flow according to the QoS flow allocated by the SDAP when processing the data packet. The NR-SDAP and NR-PDCP protocols are communication protocols used by the Uu interface. As can be seen from fig. 2, the PDCP layer and the SDAP layer of the remote UE and the NG-RAN are directly connected (the connection is omitted in the SDAP layer in the figure, and the same protocol layer name is actually connected, for example, the PC5-RLC of the remote UE and the relayed PC5-RLC are correspondingly connected, and the relayed NR-RLC and the new radio link control (NR-RLC) layer of the NG-RAN are correspondingly connected, and so on, whereas the relay forwarding function can only perform codec forwarding operation of the data of the PC5 interface and the Uu interface below the PDCP layer.

According to the above process, when the UE connects to the Network using relaying, data security between the remote UE and the gNB can be ensured without exposing original data at the UE-to-Network Relay. Meanwhile, 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 RLC layer below the data packet is the information of the relay, and the PDCP layer above the remote UE is the information of the remote UE, and the gNB needs to inform the radio resources of the Uu interface and the PC5 interface used by the relay UE when allocating the radio resources.

Similarly, fig. 3 shows a 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 the embodiments of the present application are not described herein.

In the ProSe relay communication, taking the UE-to-Network scenario as an example, the remote UE may use different applications (or services) in one PDU session, and quality of service (QoS) parameters required by the different applications (or services) are different, for example, a video service requires a high bandwidth, and a voice communication requires a reliable low latency. Therefore, the SMF establishes different QoS flows (QoS flows) for QoS requirements of different services according to communication requirements of the remote UE, and each QoS flow is identified by a QoS Flow Identifier (QFI). QoS requirements corresponding to the same QoS flow are the same, and these requirements may be quantified by QoS parameters, such as delay, bandwidth, packet loss rate, and the like. In order to facilitate the representation of QoS parameters, the 3GPP standard combines the indicators of delay, packet loss rate, packet processing priority, etc. with a standardized Identifier, i.e. 5QI (5G QoS Identifier). In addition to the QoS parameters indicated in the 5QI, the QoS parameters corresponding to each QoS Flow further include Allocation and Retention Priority (ARP), Flow bit rate (QoS Flow for guaranteed bandwidth Flow (GBR), including guaranteed rate and maximum rate), Flow aggregate rate (QoS Flow for Non-guaranteed Flow (Non-GBR), and so on, according to the service requirement.

After the SMF establishes the PDU session, the QFI used by the downlink data in the PDU session and the QoS parameters corresponding to the QFI are sent to the base station (e.g., the gNB) through the N2 message, and configured to the UPF through an N4 interface (interface between the control plane SMF and the user plane network element), thereby opening the downlink data transmission link from the DN to the base station. And the uplink data transmission rule (QoS rule) and the corresponding QoS parameter used by the UE are transmitted to the UE by the SMF through the N1 message. In this way, the base station can allocate radio resources for the UE for transmitting different QoS flows according to the QoS parameters. And for the GBR QoS flow, the SMF can also instruct the base station to monitor the channel quality of the UE and the base station, and when the channel quality between the UE and the base station does not meet the QoS requirement, the SMF can be informed to adjust the corresponding QoS parameter.

Specifically, for a guaranteed bit rate QoS Flow (GBR QoS Flow), a base station needs to determine whether a radio resource on a radio side can guarantee a bandwidth requirement corresponding to the GBR QoS Flow according to a channel quality between a UE and the base station. When the base station monitors that the quality of a wireless air interface cannot guarantee the GBR requirement, the base station needs to inform the SMF to change the corresponding GBR QoS requirement. Specifically, the AMF sends information in an N2 SM (session management) container to the base station, and the N2 SM information may include: PDU session identification, 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 may further add a notification control indication in the QoS configuration, instruct the RAN-based station to monitor the QoS flow, and when the air interface transmission rate or bandwidth cannot meet a Guaranteed Flow Bit Rate (GFBR), send notification (alarm) information to the SMF. The base station informs the SMF that the current GFBR cannot be satisfied, and attaches a currently supportable GFBR value, a supportable Packet Delay Budget (PDB) and a Packet Error Rate (PER).

In addition, the N2 SM message may also include an optional QoS profile (AQP). The optional QoS configuration means that the SMF can provide multiple sets of corresponding QoS parameters to the base station for the same GBR QoS flow. For example, for the GRB QoS flow QFI 1, the corresponding QoS parameters are AQP 1 ═ 5QI ═ 1 and GFBR ═ 10Mbps }, AQP 2 ═ 5QI ═ 1 and GFBR ═ 8Mbps }, AQP 3 ═ 5QI ═ 2 and GFBR ═ 5Mbps }, and the like. Wherein, 5QI (5G QoS Identifier, 5G QoS indicator) is a standardized QoS parameter set, and is composed of QoS parameters such as PDB, PER, and the like. For example, when 5QI ═ 1, the QoS parameters are represented as: the default priority is 20, PDB is 100ms, PER is 0.01, and the default average window is 2000 ms. The SMF, when it is a base station AQP, indicates the current or default set of QoS parameters to use, e.g., indicates to the base station that the default AQP is AQP 1.

After the base station acquires the AQP, when it is monitored that the air interface rate or bandwidth cannot meet the QoS parameter of the current AQP (for example, a GFBR indicated by AQP 1 is 10Mbps), but can meet the QoS parameter of AQP 2, the base station sends an N2 message to the SMF, where the N2 message includes the QFI and the AQP information that can be met (for example, AQP 2).

And in the PC5 link between the relay UE and the remote UE, the data Flow is also based on QoS Flow transmission, i.e., PC5QoS Flow. Each PC5QoS Flow is identified by a PC5 link QoS Flow identifier (PFI, PC5QoS Flow indicator).

In the above description, since the base station may detect the link quality between the base station and the UE, when the link quality between the base station and the UE does not satisfy the communication requirement, the base station may notify the SMF to change the QoS parameter, but in a scenario where the remote UE uses the relay UE to communicate with the base station, that is, in a 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, so when the link quality of the PC5 link between the remote UE and the relay UE cannot guarantee the GBR QoS requirement, the base station cannot notify the SMF to adjust the corresponding QoS parameter, and thus cannot guarantee the end-to-end QoS requirement.

Similarly, in the UE-to-UE scenario, the source UE cannot sense the link quality of the PC5 link between the relay UE and the target UE, and therefore cannot adjust the corresponding QoS parameter when the link quality between the relay UE and the target UE changes, so that the end-to-end QoS requirement cannot be guaranteed.

The application provides a method for monitoring quality of service (QoS), which is characterized in that relay User Equipment (UE) or remote UE can monitor the previous communication quality in a UE-to-network scene and send a message when a monitoring result does not meet a preset condition, so that network equipment can acquire the link quality change of a communication link between the remote UE and the relay equipment in the communication process, and therefore, when the link quality of the link between the remote UE and the relay UE does not meet the transmission requirement, corresponding QoS parameters can be changed, and the end-to-end QoS requirement is ensured; or, in a UE-to-UE scenario, the relay UE or the target UE may monitor the communication quality therebetween, and send a message when the monitoring result does not satisfy the preset condition, so that the source UE may obtain the link quality change of the communication link between the target UE and the relay device during the communication process, and thus, when the link quality of the link between the target UE and the relay UE does not satisfy the transmission requirement, change the corresponding QoS parameter, thereby ensuring the end-to-end QoS requirement.

Fig. 4 is a schematic diagram illustrating a method for monitoring quality of service QoS according to an embodiment of the present application. As shown in fig. 4, the method includes steps S410 to S430, which are described in detail below.

S410, the first communication device obtains a first mapping relation between the QoS parameter and the identification information of a first channel, wherein the first channel is used for transmitting data between the relay device and the terminal device.

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

Optionally, the embodiment of the application can be applied to a scenario of a UE-to-Network.

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 first channel may correspond to a QoS Flow to be monitored, where the QoS Flow to be monitored may be a GBR QoS Flow or a delay-critical GBR QoS Flow.

In the prior art, the N2 message sent by the SMF to the base station may include Uu interface QoS configuration information and a corresponding QFI that the remote UE needs to use in the PDU session. The QoS configuration information may include specific Uu QoS parameters (i.e., 5QI) and corresponding QFI, and the base station needs to map the QFI to a Data Resource Bearer (DRB) and allocate the QFI to the relay UE, so as to be used for Uu interface communication between the relay 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 channel (RLC channel) granularity, and the mapping relationship between the QFI and the RB is completed in the SDAP layer. Therefore, the relay UE cannot perform flow-granular QoS parameter monitoring for individual QoS flows.

However, the relay UE may monitor QoS parameters of the SLRB granularity, so in the embodiment of the present application, the relay UE may establish an SLRB or an RLC channel corresponding to the QoS flow for the relay UE, further map the QoS flow to be monitored onto an individual SLRB or RLC channel, or instruct the relay UE to establish an individual SLRB for the QoS flow to be monitored, so that the relay UE may monitor link quality of the PC5 link and report a monitoring result to the base station or the UE, so that the base station or the UE may adjust corresponding QoS parameter configuration according to the monitoring result, thereby ensuring end-to-end QoS requirements.

As an embodiment, the first mapping relationship may be obtained from a base station, and specifically, the obtaining of the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication device receives the first mapping relationship from a base station.

As another embodiment, the first mapping relationship may also be generated by the first communication device itself, and specifically, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication equipment receives a second mapping relation between the identification information of a second channel from the base station and the QoS parameter, wherein the second channel is used for transmitting data between the relay equipment and the base station; the first communication device allocates the first channel to the second 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, 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 resource is selected by the relay UE and the remote UE in a radio resource pool pre-configured by a base station or a core network element (e.g., PCF), and since the relay UE does not know the QoS flow corresponding to each DRB and the QoS parameter corresponding to different QoS flows, when a PC5 link is established between the relay UE and the remote UE, it is necessary to acquire the PC5 link resource from the radio resource pool according to the identification information of the second channel, and generate corresponding first channel information, such as SLRB configuration information.

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, and specifically, the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel includes: the first communication equipment receives a first mapping relation between the QoS parameters and identification information of QoS flows from source UE or target UE; the first communication equipment 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 may perceive the PFI granularity, and therefore, the first communication device may receive the mapping relationship including the identification information of the QoS flow, and then apply to the base station to establish a separate SLRB for the QoS flow according to the identification of the QoS flow, and further, the first communication device may perform monitoring based on the SLRB granularity. Alternatively, the identification information of the QoS flow may be PFI identification information. It is to be understood that the 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 a second case, the first communication device in the embodiment of the present application may be the terminal device, such as a remote UE or a target UE.

In fig. 2, when the remote UE communicates with the data network through the relay UE, in a protocol stack of the remote UE, an SDAP layer and a PDCP layer of the remote UE and the data network are directly connected, that is, a mapping relationship between QFI and RB completed by the base station on the SDAP layer is perceivable for the remote UE, so in this embodiment of the application, the base station may notify the remote UE of a QoS flow to be monitored and a corresponding parameter thereof, and the remote UE may monitor a PC5 link quality between the remote UE and the relay UE according to a received identifier and a parameter corresponding to the QoS flow to be monitored, so as to ensure end-to-end QoS requirements; or, in fig. 3, when the source UE communicates with the target UE through the relay device, in a protocol stack of the source UE, the SDAP and the PDCP layer of the source UE and the target UE are directly connected, that is, a mapping relationship between the PFI and the RB is perceivable for the source UE, so in this embodiment of the present application, the target UE may notify the source UE of a QoS flow to be monitored and a corresponding parameter thereof, and the source UE may monitor the quality of a PC5 link between the source UE and the relay UE according to the received identifier and the parameter corresponding to the QoS flow to be monitored, thereby ensuring end-to-end QoS requirements.

It should be understood that at a 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 a UE-to-network scenario, a user protocol stack between the remote UE and the base station is connected, so that the remote UE can sense QoS flow granularity between the remote UE and the base station, and therefore, the identification information and the QoS parameter of the QoS flow to be monitored can be sent to the first communication device, so that the first communication device can monitor communication quality according to the identification information and the QoS parameter.

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

Alternatively, the QoS flow identifier may be a PFI identifier or a QFI identifier. In a UE-to-UE scenario, a terminal device (target UE) communicates with an opposite terminal device (source UE) through a relay device, and at this time, a first communication device may obtain a mapping relationship including a PFI identifier, so that the first communication device may monitor a corresponding QoS flow based on the PFI identifier.

In a UE-to-network scenario, a terminal device (remote UE) communicates with a base station through a relay device, and at this time, a first communication device may obtain a mapping relationship including a QFI identifier, so that the first communication device may monitor a corresponding QoS stream based on the QFI identifier.

Optionally, before monitoring the QoS parameter corresponding to the QoS flow, the first communication device may further receive indication information, and monitor the parameter of the QoS flow according to the indication information, specifically, the method further includes: the first communication device obtains indication information, where the indication information is used to indicate the first communication device to monitor the QoS parameter of the first channel.

As an embodiment, a first communication device may obtain a first mapping relationship including identification information of a QoS flow from a peer UE (source UE) or a base station, respectively, where the first communication device is the terminal device, and the obtaining of the first mapping relationship between a QoS parameter and identification information of a first channel includes: and the first communication equipment receives the first mapping relation from a base station or opposite terminal equipment, wherein the first communication equipment communicates with the opposite terminal equipment through the relay equipment.

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

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

The first communication device may monitor, based on the SLRB identifier, the PFI identifier, or the QFI identifier in the first mapping relationship, communication quality of the PC5 link between the relay device and the remote UE, or between the relay device and the target UE, such as GFBR, delay, packet loss rate, and the like, specifically, when the current GFBR requirement is 1M/s, the relay UE may count received data within 10s, and if the received data is greater than or equal to 10M, it indicates that the current link quality meets the GFBR requirement; or, the relay UE may also monitor the time delay of the received data packet, record the timestamp of the data packet transmission time node and the timestamp of the reception time node, and determine whether the time delay of the data packet satisfies the specified time delay; or the relay UE may also monitor the packet loss rate of the data packet, and the like, and the method for monitoring the QoS parameter by the relay UE is not limited in the present application.

S430, when the first communication device determines that the QoS parameter of the first channel does not meet a preset condition, first information is sent.

Optionally, the preset condition may be configured locally by the first communication device, or the preset condition may also be received by the first communication device when receiving the first mapping relationship, and optionally, the preset condition may include, for example, that a threshold of a bandwidth, a packet loss rate, a time delay, and the like is not satisfied, which is not limited in this application.

For an embodiment, the first information is used to indicate that the QoS parameter of the first channel does not satisfy 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 obtained by the first communication device is established by the first communication device itself, the base station is not perceptible for the identifier of the first channel, and therefore, the first communication device should carry the identifier of the second channel when sending the first information.

Optionally, the embodiment of the present application may be applied to a UE-to-network scenario, where the first communication device may send the monitoring result to the base station, and specifically, the sending the first information includes: the first communication device transmits the first information to the base station.

Optionally, the embodiment of the present application may be applied to a UE-to-UE scenario, where the monitoring result is sent to a terminal device (remote UE or target UE), and specifically, the sending the first information includes: and the first communication equipment sends the first information to the terminal equipment.

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

When the UE is in a 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 transmits the first information to a base station.

When the UE is in a UE-to-UE scenario, optionally, after the target UE obtains the monitoring result, the target UE may send the monitoring result to the source UE, and specifically, the sending the first information includes: and the first communication equipment sends the first information to target terminal equipment.

Optionally, the first information in this embodiment of the application may further carry a modified QoS parameter value, and specifically, the first information includes a value of the QoS parameter of the first channel when the preset condition is not satisfied.

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

Optionally, the communication device may further obtain the AQP value, and in the monitoring process, after finding 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 obtained other AQP information.

The QoS parameter comprises first optional QoS configuration, AQP, information, and the determining, by the first communications device, that the QoS parameter of the first channel does not satisfy a preset condition comprises: the first communication device determining that a QoS configuration corresponding to the first AQP information of the first channel cannot be met; the method further comprises the following steps: the first communication device selects second AQP information, and the QoS configuration corresponding to the second AQP information of the first channel is enabled.

When the first communications device determines that the QoS configuration is satisfied with an AQP, the AQP may be carried in information sent to the base station or target UE. Specifically, the first information includes second AQP information for requesting to be configured according to the second AQP information or for indicating to have been configured according to the second AQP information.

It should be understood that, after determining 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 may determine the AQP information that the QoS configuration satisfies, and report the satisfied AQP information, or further, if the first communication device has obtained authorization or indication, the first communication device may adjust the AQP value according to a QoS parameter condition that the side link can support by itself, the first communication device may change the current AQP to the parameter of the AQP that satisfies the condition, and report the changed AQP information.

Optionally, the first communication device may also instruct the base station or the target UE to change the QoS parameter of the first channel when transmitting the first information. Specifically, the sending the first information includes: the first communication device sends a first message, wherein the first message comprises the first information, and the first message is used for indicating to change the QoS configuration of the first channel.

In the embodiment of the application, the first communication device acquires the mapping relation comprising the QoS parameter and the channel identifier, monitors the channel between the relay device and the remote UE according to the mapping relation, and sends a message to the base station or the target UE when the first communication device monitors that the channel communication quality does not meet the preset condition, so that the base station or the UE can acquire the communication quality of the PC5 link between the relay device and the remote UE and change the corresponding QoS parameter according to the communication quality, and the end-to-end QoS requirement is further ensured.

Fig. 5 is a schematic diagram illustrating another method for monitoring quality of service QoS according to an embodiment of the present application. As shown in fig. 5, the method includes S510 and S520, which are described in detail below.

S510, the second communication device sends a first mapping relation between the QoS parameters and the identification information of the first channel.

For one embodiment, the first channel is used for transmitting data between a relay device and a terminal device (such as a remote UE or a target UE).

Optionally, the second communication device in this embodiment 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: the second communication device acquires identification information of a second channel, wherein the second channel is used for transmitting 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 relation.

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 first mapping relationship to the relay device. Alternatively, the second communication device may also send the first mapping relationship to a terminal device (e.g., a remote UE).

As another embodiment, the second communication device may send the first mapping relation to a terminal device (e.g., a remote UE), and at this time, the first channel may include a QoS flow. Optionally, the identification information of the QoS flow may be QFI identification information.

It should be appreciated that since the protocol stack between the remote UE and the base station is interworking, the remote UE can perceive the granularity of the QoS flow, and thus, by sending the mapping relationship containing the identification information of the QoS flow to the remote UE, the remote UE can be enabled to monitor based on the QoS flow.

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

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

As an embodiment, the second communication device may send channel information corresponding to a 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 identification of the first channel may be a PFI identification.

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 that the terminal device (source UE or target UE) can sense the QoS flow granularity between the source UE and the target UE, and therefore, the identification information and the QoS parameter 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 the QoS parameter.

S520, the second communication device receives first information, and the first information is used for indicating 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 received by the first communication device when receiving the first mapping relationship, and optionally, the preset condition may include, for example, that a threshold of a bandwidth, a packet loss rate, a time delay, and the like is not satisfied, which is 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 first information from the relay device, and specifically, the receiving of the first information by the second communication device includes: the second communication device receives the first information from the relay device.

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

In the embodiment of the application, a mapping relation comprising QoS parameters and channel identification information is configured for a remote UE or a relay UE or a source UE for the relay UE or a target UE through a base station, so that the remote UE or the relay UE or the target UE can monitor QoS streams needing to be monitored in a PC5 link between the relay UE and the remote UE or between the relay UE and the target UE according to the mapping relation, and when the communication quality in the PC5 link does not meet a 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 corresponding QoS parameters when the communication quality in the PC5 link does not meet the preset condition, and thus end-to-end QoS requirements are ensured.

Fig. 6 is a schematic diagram illustrating another method for monitoring quality of service QoS according to an embodiment of the present application. As shown in fig. 6, the method includes S610 and S620, which are described in detail below.

S610, the third communication device sends a second mapping relation between the QoS parameter and the identification information of the second channel.

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

Optionally, the embodiment of the present application may be applied to 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 that needs 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.

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

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

In the embodiment of the application, the base station configures the mapping relation comprising the QoS parameter and the channel identification information for the relay UE, so that the relay UE can monitor the QoS flow needing to be monitored in the PC5 link between the relay UE and the remote UE according to the mapping relation, and when the communication quality in the PC5 link does not meet the preset condition, the relay UE can send information to the base station, so that the base station can change the corresponding QoS parameter when the communication quality in the PC5 link does not meet the preset condition, and the end-to-end QoS requirement is further ensured.

Fig. 7 is a flowchart illustrating a relay device monitoring QoS according to an embodiment of the present application.

As shown in fig. 7, S701, the remote UE establishes a UE-to-Network connection with the Network through the relay UE.

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 the PC5 connection with the relay UE, the remote UE sends the PDU session establishment/change request message to the AMF of the remote UE through the base station, and requests to establish the connection with the network through the 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 (NAS) message. Optionally, the remote UE may send an RRC message to the base station through the relay UE (at this time, the base station may obtain a binding relationship between the remote UE and the relay UE), where the RRC message includes an NAS message (the NAS message is a request for establishing a connection with the network through the relay). And after receiving the RRC message of the remote UE forwarded by the relay, the base station forwards the NAS message to the AMF of the remote UE. Meanwhile, the base station can acquire the identifier of the relay from the RRC message, so that the binding relationship between the remote UE and the relay UE is acquired.

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

S704, optionally, if the PCC rule is not locally stored in the SMF, the SMF obtains the PCC rule from the PCF.

S705, the SMF sends the created/modified PDU session information to the AMF. Specifically, the SMF may transmit the N1 SM container and the N2 SM container to the AMF through an Nsmf _ transaction _ update smcontext service message.

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

S707, the AMF sends information in the N1 SM container to the remote UE, wherein the N1 SM information may include: PDU conversation identification, QoS parameter corresponding to changed QoS rule

S708, the AMF sends the information in the N2 SM container to the base station, and the N2 SM information may include: PDU session identification, QoS configuration information (which may include 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 (GBR QoS flow), the SMF may further add a Notification Control indication in the QoS configuration to instruct the base station to monitor the QoS flow, and when the air interface transmission rate or bandwidth cannot meet the Guaranteed Flow Bit Rate (GFBR), it needs to send Notification (alarm) information to the SMF. Optionally, the base station may attach a currently supportable GFBR value, a supportable Packet Delay Budget (PDB), and a Packet Error Rate (PER) while informing the SMF that the current GFBR cannot be satisfied.

In addition, the N2 SM message may also include an optional QoS configuration (AQP). The optional QoS configuration means that the SMF can provide multiple sets of corresponding QoS parameters to the base station for the same GBR QoS flow. For example, for the GRB QoS flow QFI 1, the corresponding QoS parameters are AQP 1 ═ 5QI ═ 1 and GFBR ═ 10Mbps }, AQP 2 ═ 5QI ═ 1 and GFBR ═ 8Mbps }, AQP 3 ═ 5QI ═ 2 and GFBR ═ 5Mbps }, and the like. The 5G QoS indicator (5G QoS Identifier, 5QI) is a standardized QoS parameter set, and is composed of QoS parameters such as PDB and PER. For example, when 5QI ═ 1, the QoS parameters are represented as: the default priority is 20, PDB is 100ms, PER is 0.01, and the default average window is 2000 ms. The SMF, when sending AQPs for the base station, may indicate the current or default set of QoS parameters to use, e.g., indicate to the base station that the AQP is AQP 1 by default. After the base station acquires the AQP, when it is monitored that the air interface rate or bandwidth cannot meet the QoS parameter of the current AQP (for example, a GFBR indicated by AQP 1 is 10Mbps), but can meet the QoS parameter of AQP 2, the base station may send an N2 message to the SMF, where the N2 message includes the current QFI and AQP information (for example, AQP 2) that can meet the current air interface rate or bandwidth.

It should be understood that steps S101 to S108 belong to the prior art, and the embodiment of the present application only explains the content related to the present application, and other specific contents refer to the prior art, and the embodiment of the present application is not described herein too much.

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

On the one hand, in S708, after receiving the relevant QoS configuration in the N2 message, the base station maps all QoS flows corresponding to the QFI to one or more DRBs in the SDAP layer, where each DRB is identified by a corresponding DRB ID, and a specific mapping manner is not limited in this embodiment of the application. Since the mapping relationship between QFI and DRB ID is completed in the SDAP layer, and at the relay UE side, the relay UE can only see the information of Radio Link Control Link (RLC Channel) granularity (mapping relationship between DRB ID and RLC Channel ID), so the information of QoS flow granularity cannot be seen. Therefore, since the relay cannot monitor the QoS parameter of the flow granularity for the individual QoS flow, and the relay UE can monitor only the information of the SLRB granularity (information of the RLC layer and below) on the PC5 link, the base station needs to map the Uu QoS flow to be monitored by the relay UE to the individual SLRB and transmit the SLRB and the QoS parameter information to be monitored by the relay UE to the relay UE in order to monitor the QoS flow to be monitored by the relay UE. The QoS parameter information may be a specific QoS parameter and a first threshold of the QoS parameter corresponding to the specific QoS parameter, or there may be multiple corresponding thresholds (for example, GFBR, PDB, PER, etc.) when there are multiple specific QoS parameters, or AQP for sidelink (similar to AQP in N2 message, except that the AQP is not bound to QFI, but is bound to SLRB that is separately established) may be further included in the QoS parameter information.

Specifically, when the base station locally stores the mapping relationship between the PC5QoS parameter and the Uu QoS parameter or the PC5QoS parameter and the Uu QoS parameter (the mapping relationship may be preset in the base station, or generated by a PCF network element on the network side and sent to the base station through the AMF network element), the base station may map the Uu QoS parameter to the PC5QoS parameter by itself. Or, the base station maps the Uu QoS parameter to the corresponding PC5QoS parameter, for example, mapping between 5QI and a PC5QoS indicator (PC 5QoS indicator, PQI), according to the mapping relationship between the two and the Uu QoS parameter obtained from the N2 message in S108. And the base station allocates SLRB configuration (corresponding to the QoS parameter of the PC 5) for the remote UE and the relay according to the mapped PQI. After the base station completes the mapping between the Uu QoS parameter and the DRB and the mapping between the PC5QoS parameter and the SLRB, the RAN side base station sends the mapping relation between the DRB and the SLRB to the relay UE, and sends the PC5QoS information needing relay monitoring to the relay UE along with the DRB and SLRB configuration information. Alternatively, the remote UE may acquire the configuration information of the SLRB from the base station through an RRC message or acquire 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 for Uu QoS flows that need to be monitored separately. As shown in table 1, the base station allocates DRBs and SLRBs to the relay UE. Wherein, the base station maps QFI 1 into DRB1, and QFI2 into DRB 2. Where QFI 1 corresponds to a GBR QoS flow and needs monitoring, while QFI2 corresponds to a non-GBR QoS flow and does not need monitoring. At this time, the base station needs to map the Uu QoS parameters corresponding to QFI 1 and QFI2 to the corresponding PC5QoS parameters according to the above description. And then, the base station configures the SLBR of the PC5 link according to the QoS parameter of the PC 5. Because the Uu QoS parameter corresponding to QFI 1 needs to be monitored, its corresponding PC5QoS parameter also needs to be monitored. Therefore, the base station may correspond DRB1 to SLRB1, DRB 2 to SLRB2, and the corresponding binding relationship may add an additional indication in the Uu RLC layer, for indicating that the relay UE DRB1 is bound to SLRB1, or that the RLC Channel 1 is bound to SL RLC Channel 1. Or an additional sublayer may be added above the Uu RLC layer to carry the above indication. In addition, besides the binding relationship between DRB1 and SLRB1, PC5QoS parameter information, such as GFBR or AQP, which needs to be monitored by the relay UE needs to be carried. Similarly, the base station instructs the relay UE DRB 2 to bind with the SLRB2, or the RLC Channel 2 to bind with the SL RLC Channel 2, without adding the PC5QoS parameter information that needs to be monitored by the relay UE.

TABLE 1 mapping relationship between DRB and SLRB allocated by base station for relay UE

As another possible embodiment, the base station may configure QoS flows that need to be monitored and QoS flows that do not need to be monitored in one DRB. As shown in table 2, the base station allocates DRBs for the relay UE to the SLRB. The base station maps QFI 1, QFI2 and QFI3 to DRB1, wherein QFI 1 corresponds to GBR QoS flows, and QFI2 and QFI3 correspond to non-GBR QoS flows. As in the above example, the base station maps the Uu QoS parameters to the corresponding PC5QoS parameters, and then configures the SLRB. Specifically, if the QoS parameter corresponding to QFI 1 needs to be monitored, the base station may separately establish an SLRB (i.e., SLRB 1) for QFI 1, and separately establish an SLRB (i.e., SLRB 2) for QFI2 and QFI 3. The binding relationship between DRB1 and SLRB2 may be configured to the relay UE by the base station in the Uu RLC layer or a sublayer is added on the Uu RLC layer to carry the configuration information. Meanwhile, the PC5QoS parameters that SLRB1 needs to monitor are carried in the Uu RLC layer or additional sublayer.

In this embodiment, one DRB corresponds to multiple SLRBs, so in addition to the binding relationship between the DRB and the SLRB, further processing is required to implement the relay forwarding service. One approach may be that if DRB can be further subdivided into RLC Channel granularity, QFI 1 can be transmitted over RLC Channel 1, while QFI2 and QFI3 can be transmitted over RLC Channel 2. At this time, the base station may refine the binding relationship between DRB1 and SLRB2, bind RLC Channel 1 to SLRB1 or SL RLC Channel 1 in SLRB1, and bind RLC Channel 2 to SLRB2 or SL RLC Channel 2 in SLRB 2. Another processing method may be that, after configuring, by the base station, the binding relationship between the DRB1 and the SLRB1 and SLRB2 and the PC5QoS parameter of the SLRB1 to be monitored to the relay UE, in the transmission process of the data packet (downlink data), for the data packet of each user plane, indication information needs to be carried in the Uu RLC layer or the above-mentioned added extra sub-layer, so as to indicate that the data packet uses the SLRB1 or SLRB2 to perform PC5 transmission. Therefore, the relay can accurately perform the packet relay service of the Uu interface and the PC5 interface.

TABLE 2 mapping relationship between DRB and SLRB allocated by base station for relay UE

And S710, the base station feeds back wireless air interface information of the base station side to the SMF, wherein the information comprises air interface addresses, whether the air interface can support QoS parameters shown by QoS configuration and the like.

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

And S712, after the PDU session is established or changed, the remote UE carries out cellular communication through the relay.

S713, the relay UE and the remote UE monitor QoS parameters in the sidelink in the PC5 communication process, such as GFBR, time delay, packet loss rate and the like, specifically, when the current GFBR requirement is 1M/S, the relay UE can count received data within 10S, and if the received data is more than or equal to 10M, it is indicated that the current link quality meets the GFBR requirement; or, the relay UE may also monitor the time delay of the received data packet, record the timestamp of the data packet transmission time node and the timestamp of the reception time node, and determine whether the time delay of the data packet satisfies the specified time delay; or the relay UE may also monitor the packet loss rate of the data packet, and the like, and the method for monitoring the QoS parameter by the relay UE is not limited in the present application.

S710-S713 belong to the prior art, and the embodiments of the present application are not described in detail.

S714, the relay UE judges whether the monitored QoS parameter monitoring result corresponding to the SLRB which is established independently meets the first threshold value of the current QoS parameter, and when the relay UE judges that the monitored QoS parameter monitoring result does not meet the first threshold value requirement of the current QoS parameter, the relay UE sends a feedback message to the base station.

That is, S715, the relay UE transmits the sidelink monitoring result to the base station. Specifically, since the SLRB configuration information in the relay device is configured for the relay UE by the base station, the base station stores the SLRB configuration information, such as the correspondence between the DRB or RLC Channel ID and the SLRB and QIF, and therefore, the DRB ID or RLC Channel ID or the SLRB ID and the QoS monitoring result (such as the monitored GFBR value) of the sidelink may be carried in the monitoring result of the relay UE. For example, when the base station allocates the DRB and SLRB configurations to the relay UE, information of { DRB1, SLRB1, GFBR ═ 10Mbps } is sent to the relay UE, and when the relay UE monitors that the sidelink air interface (PC5 interface) can only support the GFBR ═ 8Mbps in step S714, the QoS feedback message sent to the base station may be that the GFBR of SLRB1 cannot satisfy, and at the same time, the GFBR that can satisfy may be added to 8 Mbps. Because there may be a corresponding relationship between the DRB or RLC Channel and the SLRB, the relay UE may only carry the DRB ID or RLC Channel ID when sending the QoS feedback message to the base station. When receiving the DRB ID or RLC channel ID, the base station may confirm the corresponding SLRB ID from the correspondence relationship. In addition, the QoS parameter may also be a delay index, a packet loss rate index, and the like.

Further, when the QoS information to be monitored, which is transmitted by the base station to the relay UE, 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 }, and so on, and AQP 1 is currently used. Then, when the relay UE monitors that the air interface (PC5 interface) of the sidelink can only support GFBR of 8Mbps in step S714, and PER may satisfy the requirement of 0.01, and PDB may satisfy the requirement of 100ms, the relay UE may determine that the QoS parameter of SLRB1 of the current sidelink may be adjusted from AQP 1 to AQP 2. Then, the relay UE may 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 the PER and the PDB can satisfy the condition or can satisfy AQP 2. Whether to adjust the QoS parameter of SLRB1 to AQP 2 is determined by the base station.

Or alternatively, if the base station authorizes or indicates that the relay UE can adjust the AQP value according to the QoS parameter condition that the sidelink can support in the past (e.g., in step S109), the relay UE may adjust the QoS parameter of the SLRB1 to AQP 2, and then send the result to the base station directly through the QoS monitoring result of this step, and carry the SLRB ID and the AQP value (here, SLRB2, AQP 2) along with the message.

S716, the base station initiates a PDU session change 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, the DRB identifier, or the RLC Channel identifier therein. In the specific PDU session change request, the base station may carry corresponding QoS information along with the request message according to the QoS parameter fed back by the relay.

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

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

S718, the SMF sends the changed PDU conversation information to the remote UE through the N1 message, and sends the changed PDU conversation information to the base station through the N2 message. Steps S717 and S718 belong to the prior art, and redundant description is not repeated in this embodiment of the present application.

And 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 parameter in the N2 message and retransmits to the relay UE, so that the relay UE can update the SLRB configuration information.

The embodiment of the application can be applied to a UE-to-network relay scene, the base station distributes the independent SLRB configuration information to the relay equipment through the QoS flow which needs to monitor the QoS parameters, so that the relay equipment can monitor the QoS parameters of the sidelink according to the independently configured SLRB information, and the QoS parameters of the sidelink can be changed when the quality of the sidelink between the remote equipment and the relay equipment does not meet the requirement of the current QoS parameters, and the end-to-end communication quality requirement is ensured.

As another embodiment, the base station does not need to send the QoS parameter information to be monitored to the relay UE, but when the base station allocates the PC5 link information and the mapping relationship of the DRB to the relay device according to the prior art, the base station may send the mapping relationship of the DRB and the QFI and/or the mapping relationship of the SLRB and the PFI to the relay UE at the same time, and then the relay UE may determine the QoS parameter information to be monitored according to the mapping relationship. And if the relay UE cannot acquire the QoS parameters corresponding to the QFI and/or the PFI, the base station further needs to send the QoS parameters corresponding to the QFI and/or the PFI to the relay UE. Here, the case of "QFI and PFI" is that the relay UE maps the QoS parameter (Uu QoS parameter) corresponding to QFI to the QoS parameter (PC 5QoS parameter) corresponding to PFI, or the relay UE does not have a corresponding relationship between the Uu QoS parameter and the PC5QoS parameter (this relationship may be preconfigured information acquired by the relay UE from the network side, or locally stored preconfigured information). Otherwise, the relay UE only needs to acquire information of "QFI or PFI", and can derive the corresponding values of the Uu QoS parameter and the PC5QoS parameter from the mapping relationship between the two.

Further, if the relay UE cannot know the QoS parameter corresponding to the QFI and/or the PFI, the base station may send the corresponding QoS parameter to the relay UE, optionally, the existing NR RLC Layer may be enhanced, and an additional DRB QoS parameter information is added, or an additional Adaptation Layer (Adaptation Layer) is added to the NR RCL Layer, and the QoS parameter is added thereto.

By directly sending the mapping relation between the DRB and the QFI and/or the mapping relation between the SLRB and the PFI to the relay UE, the relay UE can independently determine the QFI or the PFI which needs to be monitored for QoS, and further, the communication quality of a sidelink between the remote UE and the relay UE can be monitored. Correspondingly, when the relay UE finds that the QoS result monitored by the current SLRB link does not meet the requirement of the current QoS parameter, the relay UE sends a feedback message to the base station, wherein the feedback message can comprise a DRB, an SLRB, a QFI or a PFI and a corresponding QoS monitoring result.

According to the embodiment of the application, the mapping relation comprising the DRB and the QFI and/or the mapping relation comprising the SLRB and the PFI are distributed to the relay UE, so that the relay UE can acquire the QoS parameters needing to be monitored and monitor the QoS parameters needing to be monitored, and the parameters can be changed when the link quality between the relay UE and the remote UE does not meet the requirement, and the end-to-end communication quality requirement is ensured.

Fig. 8 shows a flow chart of another relay device monitoring QoS. The embodiment of the present application is similar to the embodiment of the application in fig. 7, and the difference is that the base station does not directly establish a separate SLRB configuration for the QoS flow that needs to be monitored and send the configuration to the relay UE, but sends the identifier of the DRB or the RLC channel identifier corresponding to the QoS flow that needs to be monitored 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 identifier.

S801 to S808 are the same as S701 to S708 in fig. 7, and repeated description is not repeated in this embodiment of the present application.

Step S809a, the base station sends, to the relay UE, identification information corresponding to the QoS flow that needs to establish the SLRB separately and DRB configuration corresponding to the identification information, where the identification information corresponding to the QoS flow that needs to establish the SLRB separately may be a DRB identifier or an RLC channel identifier in a DRB. Alternatively, if the base station transmits only 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 may be transmitted through a PC5-S or a PC5-RRC message). As shown in table 3, the DRB configuration may be a DRB configuration used in a communication link between a base station and a relay device, and specifically may include an RLC layer, an MAC layer and a PHY layer configuration between a relay UE and the base station, where the RLC layer is configured to an RLC channel used by a Uu interface, a retransmission mechanism and the like, and the MAC layer is configured to a mapping relationship between a logical channel and a transport channel, a hybrid automatic repeat request (HARQ) mode and the like.

TABLE 3 mapping relationship between Uu QoS flow and DRB configured by base station for remote UE

DRB1	NR RLC1，NR MAC1，NR PHY1	Uu QoS Profile for DRB 1
			DRB2	NR RLC2，NR MAC2，NR PHY2	Uu QoS Profile for DRB 2

Optionally, the base station may also send QoS parameter information to be monitored to the relay UE. The QoS parameter information may be a specific QoS parameter and a first threshold of the QoS parameter corresponding to the specific QoS parameter, or when there are multiple 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 sidelink, 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 resource is selected by the relay UE and the remote UE in a radio resource pool pre-configured by the base station or a core network element (e.g., PCF), and since the relay UE does not know the QoS flow corresponding to each DRB and the QoS parameters corresponding to different QoS flows, when establishing a PC5 link between the relay UE and the remote UE, it is necessary to acquire the PC5 link resource from the radio resource pool according to the above DRB configuration (as shown in table 2), generate separate SLRB configuration information, and complete the corresponding SLRB configuration (configuration of PC5 RLC, PC5 MAC and PC 5) as shown in table 4. Specifically, based on the Uu QoS configuration information in the DRB configuration as shown in table 3, the relay UE needs to correspond it to the PC5QoS, and a specific mapping rule (i.e., a corresponding relationship between the Uu QoS parameter and the PC5QoS parameter) may be preconfigured to the relay UE by the base station or a core network element (e.g., PCF). When performing SLRB configuration, the relay UE may perform underlying radio resource selection according to the derived PC5QoS parameter, for example, select a physical channel band bandwidth according to a bandwidth.

After the mapping relationship between the DRB and the SLRB is established, the relay UE can accurately transmit the data packet received by the Uu or PC5 through the PC5 or Uu port. For example, when a data packet corresponding to QFI 1(QFI 1 is contained in DRB 1) of the remote UE is processed by the NR SDAP1 layer and the NR PDCP layer, and then is processed by the PC5 RLC 1, PC5 MAC 1 and PC5 PHY1 layers on the PC5 interface and is sent to the relay UE, the relay UE may process the data packet by using NR RLC 1, NR MAC 1 and NR PHY1 according to the mapping relationship between the DRB and the SLRB and send the data packet to the base station, the base station decodes the data packet by each sub-layer, and finally, the data packet of the QoS flow can be accurately obtained from the NR SDAP1 layer.

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

DRB·1	SLRB1	PC5 RLC1，PC5 MAC1，PC5 PHY1	PC5 QoS Profile for SLRB 1
				DRB2	SLRB2	PC5 RLC2，PC5 MAC2，PC5 PHY2	PC5 QoS Profile for SLRB 2

S810 to S814 are the same as S710 to S714 in the application embodiment in fig. 7, and the description of the embodiment is not repeated.

Correspondingly, S815, the relay UE transmits the QoS monitoring result to the base station. Since in the embodiment of the present application, the SLRB configuration information of the relay UE is generated by the relay UE, and is not transmitted by the base station, the base station does not know the specific configuration situation of the SLRB, for example, the correspondence between the SLRB identity and the DRB identity that are separately established. Therefore, in the embodiment of the present application, the monitoring result sent by the relay UE may be a DRB ID or an RLC channel ID and a corresponding QoS monitoring result.

The remaining steps are the same as those in the embodiment of fig. 7, and the embodiment of the present application is not repeated.

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

The method provided by the embodiment of the application can enable the relay UE to generate the single SLRB according to the identification of the QoS flow which is sent by the base station and needs to be monitored and the DRB configuration of the QoS flow, so that the QoS parameter of the QoS flow which needs to be monitored can be monitored in the communication process, and the feedback message is sent to the base station according to the monitoring result, so that the QoS parameter of the sidelink can be changed when the quality of the sidelink between the terminal equipment does not meet the requirement, and the end-to-end communication quality requirement is ensured.

Fig. 9 is a flowchart illustrating another relay device monitoring QoS according to an embodiment of the present application. As shown in fig. 9, the UE in network coverage acquires ProSe communication parameter configuration from PCF to pre-configure, including default QoS parameters used by ProSe application, where some ProSe applications may use optional QoS parameter configuration.

S901, the UE1 establishes a connection with the UE2 through a relay UE.

The above steps belong to the prior art, and are not described herein in detail.

At S902a, the UE1 and/or UE2 instruct the relay UE to establish a separate SLRB for the UE1 and UE2 according to the preconfigured parameters obtained from the PCF (e.g., GBR or delay-critical GBR QoS Flow) that need to perform QoS monitoring, and notify the relay UE of QoS parameter information that needs to be monitored, where the QoS parameter information may include a specific QoS parameter and a first threshold corresponding to the specific QoS parameter, or there may be multiple corresponding thresholds (e.g., GFBR, PDB, PER, etc.) when there are multiple specific QoS parameters, or the QoS parameter information may further include AQP for a sidelink, and the like. It should be appreciated that for UE1 and UE2, the data streams they transmit may belong to different traffic streams, and therefore, it is desirable for UE1 and UE2 to instruct relay UEs to establish SLRBs for QoS streams that need QoS monitoring, respectively. Specifically, the UE1 and the UE2 determine, according to preconfigured parameters, a PFI id of a QoS flow (e.g., GBR or Delay-critical GBR QoS flow) that needs to be QoS monitored, send the PFI id of the QoS flow that needs to be QoS monitored to the relay UE, and instruct the relay UE to establish a separate SLRB for the QoS flow. Optionally, the UE1 and the UE2 may also send indication information indicating that the relay UE establishes separate SLRBs for the UE1 and the UE 2.

Specifically, in the prior art, the UE1 and the UE2 would send PFI identifiers used in a PC5 link to the relay UE to establish PC5 connection with the relay UE, respectively, but the UE1 and the UE2 do not have any difference in PFI identifiers sent to the relay UE, and the relay UE cannot perceive which QoS streams corresponding to PFIs need to be monitored, so that an individual SLRB cannot be established for the QoS streams that need to be monitored, in this embodiment of the present application, the UE1 and the UE2 may inform the relay UE that PFI identifiers of SLRBs need to be established separately when sending PFIs to the relay UE, for example, the UE1 informs the relay UE, the PFI1 is a PFI identifier that needs to be established separately, and the FPI2 is a PFI identifier that does not need to be established separately, at this time, the relay UE may establish separately a PFI1 for PFI1, and the remaining PFI identifiers that do not need to be established separately may correspond to SLRB 2; correspondingly, in the process of establishing the PC5 connection with the UE2, the relay UE needs to establish a PC5 link with the UE2 according to the binding relationship between the PFI identifier and the SLRB established by the relay UE and the UE1, for example, SLRB1 corresponds to SLRB3, and the rest of SLRB2 identifiers which do not need to be monitored correspond to SLRB4, so that in the subsequent packet forwarding process, the relay UE can monitor QoS parameters of SLRB1 and SLRB 3.

S902b, the relay UE applies for SLRB configuration to the base station. Specifically, according to the prior art, the relay UE initiates a request message to the base station to request to acquire the SLRB configuration, where the request message may carry a PC5QoS profile, and the difference is that in this embodiment of the present application, the relay UE also needs to carry a PFI identifier that needs to perform QoS monitoring, so that the relay UE may establish an individual SLRB for a QoS flow that needs to perform QoS monitoring.

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

S904, the relay UE determines whether the monitored link quality corresponding to the SLRB established separately and the current QoS parameter satisfy the current QoS parameter threshold requirement (e.g., the current GFBR cannot be satisfied, or the PER cannot be satisfied). Further, if the relay UE further acquires the AQP value in step S902a, the relay UE may determine whether there is an AQP value that can satisfy the current link quality according to the acquired AQP value.

S905a, when the relay UE determines that the link quality of the SLRB cannot support the current QoS parameter, the relay UE may send a message to the UE1 and the UE2 through an RRC message, where the message may carry an indication that the SLRB ID/RLC channel ID and the QoS parameter cannot meet the requirement. 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 correspondence between SLRB1 and SLRB3 may be a correspondence between RLC Channel 1 (RLC layer in SLRB 1) and RLC Channel 3 (RLC layer in SLRB 3), and therefore, when the relay UE transmits a message to UE1 or UE2, the relay UE may carry the corresponding RLC Channel ID. Optionally, the message may also carry QoS parameters that can be currently supported, and further, may also indicate AQP identifiers that can be supported.

At S905b, the UE1 and the UE2 may select to disconnect from the peer UE according to the message sent by the relay UE, or may change the configuration according to the QoS carried in the message sent by the relay UE.

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

The embodiment of the application is applied to a UE-to-UE scene, and the relay equipment is indicated to establish the independent SLRB configuration information for the opposite terminal UE, so that the relay UE can monitor the link quality in the communication process, and sends out a change request when the link quality does not meet the requirement, thereby changing the QoS parameter of the sidelink and further ensuring the end-to-end transmission quality requirement.

Fig. 10 is a schematic flowchart illustrating a process of monitoring QoS by a terminal device 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, except that the embodiment of the present application monitors the communication quality of the sidelink between the relay device and the remote device through the terminal device (in the embodiment of the present application, the remote UE), and sends the monitoring result to the base station, so that the base station can change the QoS parameter of the sidelink when the communication quality of the sidelink does not meet the requirement, thereby ensuring the end-to-end service requirement.

S1001 to S1008 are the same as corresponding steps in fig. 7 to fig. 8, and the description of the embodiments of the present application is not repeated here.

S1009, the base station sends the identification information of the QoS flow and the QoS parameter information that need to be monitored to the remote UE. Specifically, the base station determines, according to the QoS configuration in the N2 message, a QFI (e.g., GBR or Delay-critical GBR QoS flow) that needs to be QoS monitored, and sends the QoS configuration corresponding to the QFI or QoS parameter information that needs to be monitored to the remote UE, and optionally, the base station may further carry indication information indicating that the remote UE performs QoS monitoring on the data packet of the QFI.

It should be appreciated that, since the base station maps the QFI and the DRB at the SDAP layer and the SDAP layer between the base station and the remote UE is directly connected, the remote UE can sense the QoS flow granularity, so that the communication quality of the sidelink can be monitored from the QoS flow granularity.

S1010 to S1013 are the same as corresponding steps in fig. 7 to fig. 8, and the description of the embodiments of the present application is not repeated here.

S1014, when receiving the data packet of the relay forwarding base station, the remote UE counts QoS conditions that can be supported by the data stream corresponding to the QFI, such as GFBR, delay, packet loss rate, and the like, according to the indication of the base station, and for a specific monitoring process, refer to the description of the foregoing embodiment.

S1015, when the remote UE finds that the data stream corresponding to the QFI can not support the current QoS parameter, a notification is sent to the base station through an RRC message, the message carries the QFI identifier, and the QoS parameter can not meet the indication. Optionally, the message may also carry a QoS parameter that can be currently supported, and for an Alternative QoS condition, may indicate an AQP identifier that can be supported.

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

The embodiment of the application is applied to a UE-to-network scene, and the QoS parameters in the uplink link are monitored by indicating the remote UE, and the change is requested when the QoS parameters cannot meet the requirements, so that the end-to-end transmission quality requirements are ensured.

Fig. 11 is a schematic flowchart illustrating another terminal device monitoring QoS according to an embodiment of the present application. As shown in fig. 11, the content of step S1101 is the same as that in the embodiment of the application of fig. 9, and repeated description is not repeated in this embodiment of the application.

S1102, the UE1 and the UE2 instruct the peer UE to monitor the corresponding data Flow for the PFI (e.g., GBR or Delay-critical GBR QoS Flow) that needs to be QoS monitored according to the preconfigured QoS parameters. It should be appreciated that because the SDAP layer between UE1 and UE2 is communicated, the PFI granularity of the communication link between the two UEs may be perceived between UE1 and UE 2.

S1103, the UE1 and the UE2 monitor data streams corresponding to PFIs that need to be monitored, such as GFBR, delay, packet loss rate, and the like, in the PC5 communication process.

S1104, the UE1 and the UE2 determine whether the data stream corresponding to the QFI to be monitored meets the current QoS parameter requirement.

S1105a, when UE1 or UE2 finds that the data flow corresponding to a certain QFi can not support the current QoS parameter, a change request is sent to the opposite UE (UE2 or UE1) through RRC message, the message carries QFi identification, and the QoS parameter can not meet the indication. Optionally, QoS parameters that can be currently supported may indicate AQP identities that can be supported for an Alternative QoS situation.

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

S1106, the UE1 and the UE2 send the updated QoS parameters to the opposite UE through RRC messages, and QFI identifiers for changing the QoS parameters and corresponding QoS parameters are carried in the messages.

The embodiment of the application is applied to a UE-to-UE scene, the PFI needing QoS monitoring is determined through the acquired pre-configuration, corresponding monitoring is carried out, and when the monitoring result does not meet the requirement, a change request is sent to the opposite end UE, so that the end-to-end data transmission requirement can be ensured.

Fig. 12 is a schematic diagram of an apparatus for monitoring quality of service QoS according to an embodiment of the present application, and as shown in fig. 12, the apparatus 1200 includes a first obtaining 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 above method embodiments. For example, the apparatus 1200 may be a relay device or a terminal device. In one implementation of the apparatus 1200, the apparatus 1200 includes a unit for implementing any one of the steps or operations in the foregoing method embodiments, and the unit may be implemented by hardware, software, or a combination of hardware and software.

The apparatus 1200 may process a message as a first communication device, and perform the steps of processing a request message by the first communication device in the above method embodiment. The first obtaining module 1210 and the first sending module 1230 may be configured to support the apparatus 1200 to perform communication, for example, perform the sending/receiving actions performed by the first communication device in fig. 4 to 6, and the first processing module 1220 may be configured to support the apparatus 1200 to perform the processing actions in the above method, for example, perform the processing actions performed by the first communication device in fig. 4 to 6. Specifically, reference may be made to the following descriptions:

a first obtaining module, configured to obtain a first mapping relationship between a QoS parameter and identification information of a first channel, where the first channel is used to transmit data between a relay device and a terminal device; a first processing module, configured to monitor the QoS parameter of the first channel; the first processing module is further configured to: and determining that the QoS parameter of the first channel does not meet a preset condition, wherein the first sending module is configured to send first information when the QoS parameter of the first channel does not meet the preset condition, and the first information is used for indicating that the QoS parameter of the first channel does not meet the preset condition.

Optionally, the first channel comprises: 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: receiving the first mapping relation from a base station.

Optionally, the first obtaining module is specifically configured to: receiving a second mapping relation between identification information of a second channel from the base station and the QoS parameter, wherein the second channel is used for transmitting data between the relay equipment and the base station; the first processing module is further configured to: allocating the first channel to the second channel; and establishing the first mapping relation.

Optionally, the first information comprises an identification of the second channel.

Optionally, the second channel comprises: 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: and sending the first information to the base station.

Optionally, the first obtaining module is specifically configured to: receiving a first mapping relation between the QoS parameters and identification information of QoS flows from the terminal equipment; the first processing module is further configured to: allocating the first channel for the identification information of the QoS flow; and establishing the first mapping relation.

Optionally, the first communication device is the relay device.

Optionally, the first channel comprises a QoS flow.

Optionally, the first obtaining module is further configured to: acquiring indication information, wherein the indication information is used for indicating the device to monitor the QoS parameter of the first channel.

Optionally, the first communication device is the terminal device, and the first obtaining module is specifically configured to: and receiving the first mapping relation from a base station or opposite terminal equipment, wherein the device communicates with the opposite terminal equipment through the relay equipment.

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

Optionally, the first sending module is specifically configured to: and sending the first information to a base station, or sending the first information to the opposite terminal equipment.

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

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

Optionally, the first sending module is specifically configured to: sending a first message, wherein the first message comprises the first information, and the first message is used for indicating to change the QoS configuration of the first channel.

Fig. 13 is a schematic diagram of another apparatus for monitoring quality of service QoS according to an embodiment of the present application, and 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 above method embodiments. For example, the apparatus 1300 may be a base station or a target UE. In one implementation of the apparatus 1300, the apparatus 1300 includes a unit for implementing any one of the steps or operations in the foregoing method embodiments, and the unit may be implemented by hardware, software, or a combination of hardware and software.

The apparatus 1300 may be used as a second communication device to process a message, and perform the steps of processing the message by the second communication device in the foregoing method embodiment. The second sending module 1310 and the second receiving module 1320 may be configured to support the apparatus 1300 to perform communication, for example, perform the sending/receiving actions performed by the first relay device in fig. 4 to fig. 6, and optionally, the apparatus 1300 may further include the second obtaining module, which may be configured to support the apparatus 1300 to perform the obtaining actions in the above-described method, for example, perform the processing actions performed by the second communication device in fig. 4 to fig. 6. Specifically, reference may be made to the following descriptions:

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 to transmit data between a relay device and a terminal device; and the second receiving module is used for receiving first information, wherein the first information is used for indicating that the QoS parameter of the first channel does not meet a preset condition.

Optionally, the apparatus further comprises: 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 module is used for distributing the first channel for the second channel; the second processing module is further configured to: and establishing the first mapping relation.

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

Optionally, the first channel comprises a QoS flow.

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

Optionally, the second sending module is further configured to: and sending indication information to the terminal equipment, wherein the indication information is used for indicating the first communication equipment to monitor the QoS parameter of the first channel.

Fig. 14 is a schematic diagram of another apparatus for monitoring quality of service QoS according to an embodiment of the present application, and 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 above method embodiments. For example, the apparatus 1400 may be a third communication device or a base station. In one implementation of the apparatus 1400, the apparatus 1400 includes a unit for implementing any one of the steps or operations in the foregoing method embodiments, and the unit may be implemented by hardware, software, or a combination of hardware and software.

The apparatus 1400 may be used as a third communication device to process a message, and perform the steps of processing the message by the third communication device in the foregoing method embodiment. The third sending module 1410 and the third receiving module 1420 may be configured to support the apparatus 1400 for communication, for example, to perform the sending/receiving actions performed by the second terminal device in fig. 4 to fig. 6. Specifically, reference may be made to the following descriptions:

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

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

Optionally, the apparatus is the base station.

Fig. 15 is a schematic structural diagram of a quality of service QoS monitoring apparatus according to an embodiment of the present application. The communication apparatus 1500 may be used to implement the method described in the above method embodiments with respect to the first communication device. The communication device 1500 may be a chip.

The communication device 1500 includes one or more processors 1501, and the one or more processors 1501 can support the communication device 1500 to implement the communication methods in fig. 4 to 6. 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 a communication apparatus (e.g., a network device, a terminal device, or a chip), execute a software program, and process data of the software program. The communication apparatus 1500 may further include a transceiving unit 1505 for implementing input (reception) and output (transmission) of signals.

For example, the communication apparatus 1500 may be a chip, and the transceiving unit 1505 may be an input and/or output circuit of the chip, or the transceiving unit 1505 may be a communication interface of the chip, and the chip may be a component of a terminal device or a network device or other wireless communication devices.

One or more memories 1502 may be included in the communications apparatus 1500, on which programs 1504 may be stored, which programs 1504 may be executed by the processor 1501 to generate instructions 1503, such that the processor 1501 executes the methods described in the above-described method embodiments in accordance with the instructions 1503. Optionally, data may also be stored in the memory 1502. Alternatively, the processor 1501 may also read data stored in the memory 1502, the data may be stored at the same memory address as the program 1504, or the data may be stored at a different memory address from the program 1504.

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

The communication device 1500 may further include a transceiving unit 1505 and an antenna 1506. The transceiving unit 1505 can be called a transceiver, transceiving circuit or transceiver for implementing transceiving function of the communication device through the antenna 1506.

It should be understood that the steps of the above-described method embodiments may be performed 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 device, such as a discrete gate, a transistor logic device, or a discrete hardware component.

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

The communication device 1600 includes one or more processors 1601, where the one or more processors 1601 are capable of supporting the communication device 1600 to implement the communication methods of fig. 4-6. 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 a communication apparatus (e.g., a network device, a terminal device, or a chip), execute a software program, and process data of the software program. The communication device 1600 may further include a transceiving unit 1605 to enable input (reception) and output (transmission) of signals.

For example, the communication apparatus 1600 may be a chip, and the transceiving unit 1605 may be an input and/or output circuit of the chip, or the transceiving unit 1605 may be a communication interface of the chip, and the chip may be a component of a terminal device or a network device or other wireless communication device.

The communication device 1600 may include one or more memories 1602 having stored thereon programs 1604, which may be executed by the processor 1601 to generate instructions 1603, such that the processor 1601 is capable of performing the methods described in the method embodiments described above according to the instructions 1603. Optionally, data may also be stored in the memory 1602. Alternatively, the processor 1601 may also read data stored in the memory 1602, where the data may be stored at the same memory address as the program 1604, or at a different memory address than the program 1604.

The processor 1601 and the memory 1602 may be separately configured or integrated together, for example, on a single board or a System On Chip (SOC).

The communication device 1600 may also include a transceiver 1605 and an antenna 1606. The transceiving unit 1605 may be referred to as a transceiver, transceiving circuit or transceiver for implementing transceiving function of the communication device through the antenna 1606.

It should be understood that the steps of the above-described method embodiments may be performed 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 device, such as a discrete gate, a transistor logic device, or a discrete hardware component.

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

The communication device 1700 includes one or more processors 1701, and the one or more processors 1701 may support the communication device 1700 to implement the communication methods of fig. 4-6. 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 a communication apparatus (e.g., a network device, a terminal device, or a chip), execute a software program, and process data of the software program. The communication apparatus 1700 may further include a transceiver 1705 to realize input (reception) and output (transmission) of signals.

For example, the communication apparatus 1700 may be a chip, and the transceiver 1705 may be an input and/or output circuit of the chip, or the transceiver 1705 may be a communication interface of the chip, and the chip may be a component of a terminal device or a network device or other wireless communication devices.

The communications apparatus 1700 may include one or more memories 1702 having stored thereon programs 1704 that are executable by the processor 1701 to generate instructions 1703 that cause the processor 1701 to perform the methods described in the method embodiments above in accordance with the instructions 1703. Optionally, data may also be stored in the memory 1702. Alternatively, the processor 1701 may read data stored in the memory 1702, the data may be stored at the same memory address as the program 1704, or the data may be stored at a different memory address from the program 1704.

The processor 1701 and the memory 1702 may be provided separately or integrated together, for example, on a single board or a System On Chip (SOC).

The communication device 1700 may further include a transceiver 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 of the above-described method embodiments may be performed 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, Digital Signal Processor (DSP), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), or other programmable logic device, such as a discrete gate, transistor logic, or discrete hardware component.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.

The method in the embodiments of the present application, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium, and based on such understanding, the technical solution or parts of the technical solution in the present application may be embodied in the form of a software product stored in a storage medium, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method in the embodiments of the present application. The storage medium includes at least: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

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

the method comprises the steps that first communication equipment obtains a first mapping relation between QoS parameters and identification information of a first channel, wherein the first channel is used for transmitting data between relay equipment and terminal equipment;

the first communication device monitoring the QoS parameter of the first channel;

and when the first communication equipment determines that the QoS parameter of the first channel does not meet a preset condition, sending first information, wherein the first information is used for indicating that the QoS parameter of the first channel does not meet the preset condition.

2. The method of claim 1, wherein the first channel comprises:

a Side Link Radio Bearer (SLRB), or a radio link control link (RLC) channel between the relay device and the terminal device.

3. The method according to claim 1 or 2, wherein the obtaining 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 a base station.

4. The method according to claim 1 or 2, wherein the obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel comprises:

the first communication equipment receives a second mapping relation between the identification information of a second channel from the base station and the QoS parameter, wherein the second channel is used for transmitting data between the relay equipment and the base station;

the first communication device allocates the first channel to the second channel;

the first communication device establishes the first mapping relationship.

5. The method of claim 4, wherein the first information comprises an identification of the second channel.

6. The method of claim 4 or 5, wherein the second channel comprises:

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

7. The method of any of claims 3-6, wherein the sending the first information comprises:

the first communication device transmits the first information to the base station.

8. The method of claim 1, wherein obtaining the first mapping relationship between the QoS parameter and the identification information of the first channel comprises:

the first communication equipment receives a first mapping relation between the QoS parameters and the identification information of the QoS flow from the terminal equipment;

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

the first communication device establishes the first mapping relationship.

9. The method of any of claims 1-8, wherein the first communication device is the relay device.

10. The method of claim 1, wherein the first channel comprises a QoS flow.

11. The method according to claim 2 or 10, characterized in that the method further comprises:

the first communication device obtains indication information, where the indication information is used to indicate the first communication device to monitor the QoS parameter of the first channel.

12. The method according to claim 10 or 11, wherein 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 comprises:

and the first communication equipment receives the first mapping relation from a base station or opposite terminal equipment, wherein the first communication equipment communicates with the opposite terminal equipment through the relay equipment.

13. The method according to any of claims 10-12, wherein the first information further comprises identification information of the first channel.

14. The method of any of claims 10-13, wherein the sending the first information comprises:

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

and the first communication equipment sends the first information to the opposite terminal equipment.

15. The method according to any of claims 1-14, wherein the first information comprises a value of the QoS parameter of the first channel when the preset condition is not met.

16. The method according to any of the claims 1-15, wherein said QoS parameters comprise optional QoS configuration, AQP, information.

17. The method of any of claims 1-16, wherein the sending the first information comprises:

the first communication device sends a first message, wherein the first message comprises the first information, and the first message is used for indicating to change the QoS configuration of the first channel.

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

the second communication equipment sends a first mapping relation between the QoS parameters and identification information of a first channel, wherein the first channel is used for transmitting data between the relay equipment and the terminal equipment;

the second communication device receives first information, wherein the first information is used for indicating that the QoS parameter of the first channel does not meet a preset condition.

19. The method of claim 18, wherein the first channel comprises:

20. 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:

the second communication device acquires identification information of a second channel, wherein the second channel is used for transmitting 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.

21. The method of claim 20, wherein the second channel comprises:

22. The method of any of claims 18-21, wherein receiving the first information by the second communication device comprises:

the second communication device receives the first information from the relay device.

23. The method of claim 18, wherein the first channel comprises a QoS flow.

24. The method of 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.

25. 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 QoS parameter of the first channel.

26. A communication device configured to perform the method of any one of claims 1-17.

27. A communication device configured to perform the method of any of claims 18-25.

28. 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 program instructions for performing the method of any of claims 1-25.

29. A chip comprising a processor and a data interface, the processor reading program instructions stored on a memory through the data interface to perform the method of any one of claims 1-25.