CN120786531A - Communication method and device based on multi-hop relay, equipment, medium and program product - Google Patents

Abstract

The disclosure relates to a communication method and device based on multi-hop relay, electronic equipment, a computer readable storage medium and a computer program product, and relates to the technical field of network communication, which can be applied to a scene of communication between a terminal and a network. The method includes returning, by each relay terminal, a second quality of service parameter based on the subsequently received first quality of service parameter. The present disclosure implements a communication scheme in which multi-hop relay supports end-to-end requirements between a remote terminal and a network, guaranteeing the quality of service requirements between the end-to-end based on returned quality of service parameters.

Description

Communication method and device based on multi-hop relay, equipment, medium and program product

Technical Field

The present disclosure relates to the field of network communication technology, and in particular, to a communication method based on multi-hop relay, a communication device based on multi-hop relay, an electronic device, a computer readable storage medium, and a computer program product.

Background

Relay communication (relay communication) is a method for prolonging communication distance, and when microwave and ultrashort wave are utilized to transmit signals, when the distance between two terminal stations exceeds the viewing distance, the signals decay very fast, and the quality cannot be ensured. If a plurality of relay stations are arranged between two terminal stations, the relay stations amplify, reshape and convert the carrier frequency of the signals sent by the front station and then forward the signals to the next station, so that the communication distance can be prolonged and the better communication quality can be maintained. In the specifications of the third generation partnership project (3rd Generation Partnership Project,3GPP), only one hop relay is discussed for the case where a remote terminal is connected to the network by a relay.

For example, the related art has been enhanced to support multi-hop extension based on 3gpp r18 has solved single-hop relay discovery, selection, authorization, connection establishment, and data transmission for proximity services (Proximity Services, proSe) terminals to Network relay.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure is directed to a communication method based on multi-hop relay, a communication device based on multi-hop relay, an electronic device, a computer readable storage medium, and a computer program product, so as to overcome, at least to some extent, a problem that when a remote terminal is connected to a network through multi-hop relay, communication using multi-hop relay may have incomplete data transmission.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the invention.

According to a first aspect of the present disclosure, there is provided a communication method based on multi-hop relay, applied to multi-hop relay terminals, the method comprising returning, by each of the relay terminals, a second quality of service parameter based on a subsequently received first quality of service parameter.

In an exemplary embodiment of the present disclosure, the first quality of service parameter includes a PC5 QoS parameter, and the method further includes receiving an initial quality of service parameter sent by a network side, performing a parameter mapping process on the initial quality of service parameter based on a pre-configured parameter mapping rule, to obtain the PC5 QoS parameter, where the initial quality of service parameter is generated by a session management function of the network side and sent through a session establishment procedure or a session modification procedure.

In one exemplary embodiment of the disclosure, the relay terminal comprises an intermediate relay terminal and a first relay terminal connected to a network side, the method further comprises providing, by the first relay terminal, one or more of the following parameters, namely a communication protocol layer identifier corresponding to each of the first relay terminal and a remote terminal, to the intermediate relay terminal based on a PC5 QoS flow, the PC5 QoS flow being established by the first relay terminal through a link establishment procedure or a link modification procedure, and a third quality of service parameter between the first relay terminal and an adjacent intermediate relay terminal.

In an exemplary embodiment of the disclosure, the returning, by each of the relay terminals, the second quality of service parameter based on the subsequently received first quality of service parameter includes performing, by each of the relay terminals, a parameter segmentation process on the first quality of service parameter and returning, based on the segmented parameter, the second quality of service parameter including an accumulated parameter, the accumulated parameter being derived based on the segmented parameter.

In an exemplary embodiment of the disclosure, the relay terminal includes an intermediate relay terminal, and the performing, by the relay terminals, the parameter splitting processing on the first quality of service parameter includes performing, by the intermediate relay terminal, the parameter splitting processing on the first quality of service parameter to obtain a first last hop receiving parameter and a first remaining quality of service parameter, where the first last hop receiving parameter is a quality of service parameter with the first relay terminal, and the first remaining quality of service parameter is a quality of service parameter between the intermediate relay terminal and a remote terminal.

In an exemplary embodiment of the disclosure, the intermediate relay terminal includes a first intermediate relay and a second intermediate relay, and the method further includes transmitting, by the first intermediate relay, the first remaining quality of service parameter to the second intermediate relay through a link establishment procedure or a link modification procedure, and performing, by the second intermediate relay, a parameter segmentation process on the first remaining quality of service parameter to obtain a second last hop reception parameter and a second remaining quality of service parameter.

In one exemplary embodiment of the present disclosure, the partitioned parameter includes a second remaining quality of service parameter including a remote terminal return parameter, and the returning of the second quality of service parameter based on the partitioned parameter includes sending the second remaining quality of service parameter to a remote terminal by a second intermediate relay through a link setup procedure or a link modification procedure, the second remaining quality of service parameter being used to return the remote terminal return parameter fed back by the remote terminal, the remote terminal return parameter including a quality of service parameter between the remote terminal and a next hop relay terminal in a parameter return path, the next hop relay terminal being a last hop relay terminal in an opposite path of the parameter return path.

In an exemplary embodiment of the present disclosure, the second quality of service parameter includes a relay terminal return parameter, and the returning the second quality of service parameter based on the segmented parameter includes returning, by an intermediate relay terminal, the relay terminal return parameter including an inter-terminal parameter and the accumulation parameter, where the inter-terminal parameter is a quality of service parameter between a last hop of the intermediate relay terminal and the intermediate relay terminal in a parameter transmission path, and the accumulation parameter is a sum of quality of service parameters of all adjacent two terminals between the last hop of the intermediate relay terminal and a remote terminal in the parameter transmission path, and the parameter transmission path is opposite to a data flow direction of the parameter return path.

In an exemplary embodiment of the present disclosure, the first quality of service parameter is a quality of service parameter received by each of the relay terminals from a previous hop when transmitting data from the relay terminal to a remote terminal, and the second quality of service parameter is a quality of service parameter returned by the remote terminal or the relay terminal.

According to a second aspect of the present disclosure, there is provided a communication device based on multi-hop relay, applied to a multi-hop relay terminal, the device including a communication module configured to return, by each of the relay terminals, a second quality of service parameter based on a subsequently received first quality of service parameter.

In an exemplary embodiment of the disclosure, the first QoS parameter includes a PC5 QoS parameter, and the communication module includes a parameter obtaining module, configured to receive an initial QoS parameter sent by a network side, perform parameter mapping processing on the initial QoS parameter based on a pre-configured parameter mapping rule, to obtain the PC5 QoS parameter, where the initial QoS parameter is generated by a session management function of the network side and sent through a session establishment procedure or a session modification procedure.

In an exemplary embodiment of the disclosure, the relay terminal comprises an intermediate relay terminal and a first relay terminal connected to a network side, and the communication device based on multi-hop relay further comprises a parameter sending module, configured to provide, by the first relay terminal, one or more of the following parameters, namely, a communication protocol layer identifier corresponding to each of the first relay terminal and a remote terminal, to the intermediate relay terminal based on a PC5QoS flow, and a third quality of service parameter between the first relay terminal and an adjacent intermediate relay terminal, wherein the PC5QoS flow is established by the first relay terminal through a link establishment procedure or a link modification procedure.

In an exemplary embodiment of the disclosure, the communication module includes a parameter segmentation module configured to perform a parameter segmentation process on the first quality of service parameter by each of the relay terminals, and return a second quality of service parameter based on the segmented parameter, where the second quality of service parameter includes an accumulated parameter, and the accumulated parameter is obtained based on the segmented parameter.

In an exemplary embodiment of the disclosure, the relay terminal includes an intermediate relay terminal, and the parameter segmentation module includes a parameter segmentation unit, configured to perform parameter segmentation processing on the first quality of service parameter by using the intermediate relay terminal to obtain a first last hop reception parameter and a first remaining quality of service parameter, where the first last hop reception parameter is a quality of service parameter between the first relay terminal and a first remaining quality of service parameter is a quality of service parameter between the intermediate relay terminal and a remote terminal.

In an exemplary embodiment of the disclosure, the intermediate relay terminal includes a first intermediate relay and a second intermediate relay, and the parameter segmentation unit further includes a parameter segmentation subunit, configured to send, by the first intermediate relay, the first remaining quality of service parameter to the second intermediate relay through a link establishment procedure or a link modification procedure, and perform, by the second intermediate relay, parameter segmentation processing on the first remaining quality of service parameter to obtain a second last hop reception parameter and a second remaining quality of service parameter.

In one exemplary embodiment of the present disclosure, the partitioned parameters include a second remaining quality of service parameter including a remote terminal return parameter, and the parameter partitioning module includes a first parameter return unit for transmitting the second remaining quality of service parameter to a remote terminal by a second intermediate relay through a link setup procedure or a link modification procedure, the second remaining quality of service parameter for returning the remote terminal return parameter fed back by the remote terminal, the remote terminal return parameter including a quality of service parameter between the remote terminal and a next hop relay terminal in a parameter return path, the next hop relay terminal being a last hop relay terminal in an opposite path of the parameter return path.

In an exemplary embodiment of the disclosure, the second quality of service parameter includes a relay terminal return parameter, the parameter segmentation module includes a second parameter return unit, configured to return, by an intermediate relay terminal, a relay terminal return parameter through a link establishment procedure or a link modification procedure, where the relay terminal return parameter includes an inter-terminal parameter and the accumulation parameter, where the inter-terminal parameter is a quality of service parameter between a last hop of the intermediate relay terminal and the intermediate relay terminal in a parameter transmission path, and the accumulation parameter is a sum of quality of service parameters of all adjacent two terminals between the last hop of the intermediate relay terminal and a remote terminal in the parameter transmission path, and the parameter transmission path is opposite to a data flow of the parameter return path.

According to a third aspect of the present disclosure, there is provided an electronic device comprising a processor, and a memory having stored thereon computer readable instructions which, when executed by the processor, implement a multi-hop relay based communication method according to any one of the above.

According to a fourth aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a multi-hop relay based communication method according to any one of the above.

According to a fifth aspect of embodiments of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the multihop relay based communication method of any of the above.

The technical scheme provided by the disclosure can comprise the following beneficial effects:

In an aspect, a communication scheme of the multi-hop relay supporting end-to-end requirements between a remote terminal and a network is realized. On the other hand, when the single-hop relay is extended to the multi-hop relay, the service quality requirement between the end and the end can be ensured based on the service quality parameters returned by each relay terminal, and the resources of the terminals are fully utilized to realize the purpose of communication.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort. In the drawings:

fig. 1 schematically illustrates a flow chart of a multi-hop relay based communication method according to an exemplary embodiment of the present disclosure;

Fig. 2 schematically illustrates a flow diagram of a U2N multi-hop based QoS implementation according to an exemplary embodiment of the present disclosure;

FIG. 3 schematically illustrates a data flow diagram of a parameter send path and a parameter return path according to an example embodiment of the present disclosure;

fig. 4 schematically illustrates a block diagram of a multi-hop relay based communication device according to an exemplary embodiment of the present disclosure;

FIG. 5 schematically illustrates a block diagram of an electronic device according to an exemplary embodiment of the present disclosure;

fig. 6 schematically illustrates a schematic diagram of a computer-readable storage medium according to an exemplary embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software, or in one or more software-hardened modules, or in different networks and/or processor devices and/or microcontroller devices.

When the Network requests to establish QoS flow, the R18 technology decides PQI and 5QI through 5G ProSe Layer-3UE-to-Network Relay, if expanding to multi-hop Relay, expansion is needed, meanwhile, because the receiving information returned by the single-hop Relay to the remote terminal is QoS information between the remote terminal and the Relay terminal, the expansion to multi-hop Relay needs to add accumulation parameters, and incomplete data transmission is avoided.

Based on this, in the present exemplary embodiment, a communication method based on multi-hop relay is provided first, and the communication method based on multi-hop relay of the present disclosure may be implemented by a server, and the method described in the present disclosure may also be implemented by a terminal device, where the terminal described in the present disclosure may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palm computer, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), and a fixed terminal such as a desktop computer. Fig. 1 schematically illustrates a schematic diagram of a communication method flow based on multi-hop relay according to some embodiments of the present disclosure. Referring to fig. 1, the multi-hop relay-based communication method may include the steps of:

Step S110, each relay terminal returns a second service quality parameter based on the subsequently received first service quality parameter.

According to some exemplary embodiments of the present disclosure, quality of service may be the ability of a network to provide better service capabilities for specified network communications, e.g., the ability of a network to provide services for end-to-end communications, using various underlying techniques. The quality of service parameters (QoS parameters) may be parameters in network communications (e.g., end-to-end) that ensure that a particular application and service obtains a desired level and quality of service, which may include, but are not limited to, delay and jitter, packet loss rate and bandwidth, traffic parameters, bearer level QoS parameters, connection level QoS parameters, and the like. The relay terminal may be a terminal device that enlarges the distance of network transmission by retransmitting or forwarding a data signal in network communication. The second qos parameter may be information such as a qos parameter returned by the Remote terminal (Remote User Equipment, remote UE) or the relay terminal during network communication.

The present disclosure proposes an implementation scheme for a remote terminal to connect to a network based on multi-hop relay, specifically, each relay terminal may receive a first quality of service parameter sent by a previous hop, and in a subsequent communication process, return a second quality of service parameter based on the received quality of service parameter, so that the subsequent remote terminal and the relay terminal communicate based on the second quality of service parameter. Specifically, the first quality of service parameter may be a Qos parameter received by each relay terminal from the previous hop when data (i.e., a parameter transmission path) is transmitted from the relay terminal to the remote terminal. The second quality of service parameter may be a Qos parameter returned by the remote terminal or the relay terminal.

According to the communication method based on the multi-hop relay in the present exemplary embodiment, on one hand, a communication scheme that the multi-hop relay supports end-to-end requirements between a remote terminal and a network is realized. On the other hand, when the single-hop relay is extended to the multi-hop relay, the service quality requirement between the end and the end can be ensured based on the service quality parameters returned by each relay terminal, and the resources of the terminals are fully utilized to realize the purpose of communication.

Next, a communication method based on multi-hop relay in the present exemplary embodiment will be further described.

In an exemplary embodiment of the disclosure, an initial quality of service parameter sent by a network side is received, and parameter mapping processing is performed on the initial quality of service parameter based on a pre-configured parameter mapping rule to obtain a PC5 QoS parameter, where the initial quality of service parameter is generated by a session management function of the network side and sent through a session establishment procedure or a session modification procedure.

The initial qos parameter may be a qos parameter directly acquired by the relay terminal from the network side. The parameter mapping rule may be a mapping rule that converts the initial quality of service parameters to parameters of a specified format. The parameter mapping process may be a process of converting an initial quality of service parameter into a quality of service parameter (e.g., a PC5QoS parameter) according to a parameter mapping rule.

Referring to fig. 2, fig. 2 schematically illustrates a flow chart of a U2N multi-hop based QoS implementation according to an exemplary embodiment of the present disclosure. The network side 210 in fig. 2 includes the next generation radio access network/5G radio access network (Next Generation Radio Access Network, NG-RAN) 211, core network (Core) 212, network (DN) 213, etc. that provides all target traffic services.

In step S201, the core network 212 may send the initial quality of service parameter to the relay terminal 220 (i.e. the relay terminal R) directly connected to the network through the session establishment procedure or the session modification procedure, and after the relay terminal R receives the initial quality of service parameter sent by the network side, it further performs parameter mapping processing on the initial quality of service parameter based on a pre-configured parameter mapping rule (i.e. QoS mapping), to obtain the PC5 QoS parameter.

Specifically, qoS mapping has been provided to the relay terminal R, such as by pre-configuring or by a proximity service Policy (Proximity Services Policy, proSe Policy) issued by a Policy control function (Policy Control Function, PCF) to the relay terminal R, if a QoS flow is requested to be established by the network, the SMF may generate QoS rules and QoS parameters according to PCC rules or its local configuration, where PCC refers to an architecture that maps QoS requirements of an application-level session service data flow to an IP connection access network (IP-CAN), qoS parameters may include a 5G QoS identifier (5 QI), a guaranteed flow bit rate GFBR, a maximum flow bit rate MFBR, and send initial QoS parameters to the relay terminal R through a protocol data unit PDU (Protocol Data Unit) session establishment procedure or a session modification procedure.

In step S202, the relay terminal R determines a quality of service parameter (PC 5QoS parameter) based on the initial quality of service parameter (QoS parameter) and the acquired QoS map. The relay terminal R converts the QoS parameters acquired from the network side into PC5QoS parameters specifying a communication mechanism according to the QoS map so as to perform data communication based on the parameters later.

In one exemplary embodiment of the present disclosure, one or more of PC5 QoS parameters, communication protocol layer identifications respectively corresponding to the first relay terminal and the remote terminal, and third quality of service parameters between the first relay terminal and the adjacent intermediate relay terminal are provided to the intermediate relay terminal by the first relay terminal based on the PC5 QoS flows, the PC5 QoS flows being established by the first relay terminal through a link establishment procedure or a link modification procedure.

The PC5 QoS parameter may be a quality of service parameter corresponding to the proximity communication (Proximity Communication, PC 5). The communication protocol layer identifier may be an identifier of a communication protocol layer corresponding to each of the communication between the first relay terminal and the remote terminal. The third quality of service parameter between the first relay terminal and the adjacent intermediate relay terminal may be a quality of service parameter required for the inter-communication between the relay terminals.

The Relay terminal of the present embodiment may include an intermediate Relay terminal (5G Prose Intermediate Relay) and a first Relay terminal (5G process UE-to-Network Relay) connected to the Network side, that is, a Relay terminal R. With continued reference to fig. 2, in step S203, the relay terminal R requests PC5 QoS flow establishment through the link establishment procedure or the link modification procedure, and provides the PC5 QoS parameters to the intermediate relay terminal.

Specifically, the PC5 QoS parameters include a communication protocol layer identifier (L2 ID) corresponding to each of the first relay terminal and the remote terminal, namely a layer 2 identifier (L2 ID) corresponding to each of the remote terminal R and the relay UE, and a third QoS parameter between the first relay terminal and an adjacent intermediate relay terminal, such as a Qos parameter between the expected relay terminal R-relay 2. The relay terminal R may obtain corresponding PC5 QoS parameters for subsequent communications by requesting PC5 QoS flow establishment.

In an exemplary embodiment of the present disclosure, the first quality of service parameter is subjected to parameter segmentation processing by each relay terminal, and a second quality of service parameter is returned based on the segmented parameters, the second quality of service parameter including an accumulation parameter, the accumulation parameter being obtained based on the segmented parameters.

The parameter segmentation process may be a specific process of performing a segmentation process on a quality of service parameter used in network communication (e.g., end-to-end) according to a specific format or a segmentation requirement. The parameters after segmentation may be parameters obtained by performing segmentation processing on the quality of service parameters. The accumulated parameter may be a sum of quality of service parameters of all adjacent two terminals between a relay terminal and a remote terminal on a previous hop of a data stream corresponding to a parameter transmission path in a network communication process. The first quality of service parameter is the quality of service parameter received by each relay terminal from the previous hop when transmitting data from the relay terminal to the remote terminal, and the second quality of service parameter is the quality of service parameter returned by the remote terminal or the relay terminal.

The relay terminal may obtain the quality of service parameters for the data communication through a session management function (SessionManagement Function, SMF) at the network side. The relay terminal R connected to the network side may transmit the quality of service parameter to the intermediate relay terminal, and in the parameter transmission path, the intermediate relay terminal performs the parameter segmentation process in a certain manner based on the quality of service parameter transmitted from the previous hop, for example, the segmented parameter may be divided into two parts, one part is the quality of service parameter (Qos parameter) of the previous hop, and the other part is the remaining Qos parameter.

And defining new parameters by the relay terminal after the parameter segmentation is finished, and returning Qos parameters from the remote terminal RE to the relay terminal R, wherein the Qos parameters comprise the Qos parameters between the two terminals and the total Qos parameters of all adjacent two terminals between the last hop of the terminal to the remote terminal RE in a data flow corresponding to a parameter sending path, namely, the accumulated parameters. That is, the accumulation parameter is obtained based on the divided parameters, and the accumulation parameter and the Qos parameter between the two terminals are taken as the second quality of service parameter. The return parameters of each relay terminal comprise accumulated parameters, and the quality of service requirements between the end to end can be ensured based on the accumulated parameters.

In an exemplary embodiment of the present disclosure, performing, by each relay terminal, a parameter splitting process on the first quality of service parameter includes performing, by an intermediate relay terminal, a parameter splitting process on the first quality of service parameter to obtain a first last hop reception parameter and a first remaining quality of service parameter, where the first last hop reception parameter is a quality of service parameter with the first relay terminal, and the first remaining quality of service parameter is a quality of service parameter between the intermediate relay terminal and the remote terminal.

Wherein the first previous hop reception parameter is a quality of service parameter with the first relay terminal. The first remaining quality of service parameter is a quality of service parameter of the communication between the intermediate relay terminal and the remote terminal.

In a QoS implementation scheme of terminal-to-Network (U2N) multi-hop, the used QoS parameters include the QoS parameters between the first relay terminal and the adjacent intermediate relay terminal obtained through the parameter mapping process in the above step, that is, the third QoS parameter. And the intermediate relay terminal performs parameter segmentation processing on the third service quality parameter to obtain a first last hop receiving parameter and a first residual service quality parameter.

With continued reference to fig. 2, in step S204, the present embodiment is described taking the relay terminal 230 (relay terminal 2) adjacent to the relay terminal R as an example, the relay terminal 230 performs segmentation based on the Qos flow parameters acquired in step S203, and the segmentation results in two part parameters, wherein the first part parameter is a first last hop reception parameter, that is, a Qos parameter from the relay terminal R to the relay terminal 230 (relay terminal directly connected to the relay terminal R), and the second part parameter is a first remaining quality of service parameter, that is, a Qos parameter from the relay terminal 230 to the remote terminal 250, which may be expressed as a Qos parameter of < R2-RE >. The relay terminal can take the parameters obtained after segmentation as the data basis for determining the accumulation parameters later by carrying out segmentation processing on the Qos flow parameters, and return corresponding Qos return parameters.

In an exemplary embodiment of the present disclosure, for step S110, a first intermediate relay transmits a first remaining quality of service parameter to a second intermediate relay through a link establishment procedure or a link modification procedure, and the second intermediate relay performs a parameter segmentation process on the first remaining quality of service parameter to obtain a second last hop reception parameter and a second remaining quality of service parameter.

Wherein the first intermediate relay may be a relay terminal connected to the relay terminal R. The second intermediate relay may be a relay terminal connected to other intermediate relays or to a remote terminal. The second last hop reception parameter may be a Qos parameter of a last hop received by the second intermediate relay. The second remaining Qos parameter may be another part of remaining Qos parameters obtained by the second intermediate relay after the segmentation processing of the first remaining Qos parameter.

The above-described parameter division process is described by taking the relay terminal 230 adjacent to the relay terminal R as an example, and in the QoS implementation scheme based on U2N multi-hop, a plurality of intermediate relay terminals may be included, and for example, the intermediate relay terminals may include a first intermediate relay 230 (relay terminal 2) and a second intermediate relay 240 (relay terminal 1).

With continued reference to fig. 2, in step S205, the first intermediate relay 230 transmits the Qos parameter of the first remaining quality of service parameter, i.e., < r2-RE >, obtained in step S204 to the second intermediate relay 240 through the link establishment procedure or the link modification procedure, and the parameters transmitted to the second intermediate relay 240 may further include L2 IDs of the remote terminal 250 and the relay UE, and Qos parameters (which are optional parameters) between the desired relay 1-relay 2.

In step S206, the first intermediate relay 230 performs segmentation based on the Qos parameters of < r2-RE > acquired from step S205, and the segmented parameters include two parts of parameters including a second last hop reception parameter, i.e., qos parameters between the relay terminal 1 and the relay terminal 2, and a second remaining quality of service parameter, i.e., qos parameters between the relay terminal 240 and the remote terminal 250, which may be expressed as Qos parameters of < r1-RE >. And each relay terminal continuously performs parameter segmentation processing and sends the parameter segmentation processing to the subsequent terminal, and each terminal device in the QoS implementation scheme based on U2N multi-hop receives the corresponding Qos parameter to provide a data basis for returning the Qos return parameter in subsequent communication.

Based on the QoS implementation scheme of U2N multi-hop, the present embodiment is described with the number of intermediate relay terminals being 2, and those skilled in the art will readily understand that, in other exemplary embodiments of the present disclosure, the number of intermediate relay terminals may also be 3, 5, 10, etc., and the specific number of intermediate relay terminals is not limited in any way, and the U2N communication performed by using different numbers of intermediate relay terminals falls into the protection scope of the present disclosure.

In one exemplary embodiment of the present disclosure, returning a second quality of service parameter based on the partitioned parameter for step S110 includes transmitting, by a second intermediate relay, the second remaining quality of service parameter to the remote terminal through a link establishment procedure or a link modification procedure, the second remaining quality of service parameter for returning a remote terminal return parameter fed back by the remote terminal, the remote terminal return parameter including a quality of service parameter between the remote terminal and a next hop relay terminal in a parameter return path, the next hop relay terminal being a last hop relay terminal in an opposite path of the parameter return path.

The parameter return path may be a path formed by a data flow when the remote terminal sends information to the network side. Quality of service parameters between the remote terminal and the next hop relay terminal. The next-hop relay terminal is the last-hop relay terminal in the opposite path of the parameter return path.

With continued reference to fig. 2, in step S207, the relay terminal 240 transmits to the remote terminal 250 the Qos parameter, which is the second remaining quality of service parameter obtained based on step S206, i.e., < r1-RE >, through a link establishment procedure or a link modification procedure, and the parameters transmitted to the remote terminal 250 further include some other parameters, for example, L2 IDs of the remote terminal 250 and the relay UE, and a desired Qos parameter between the relay terminal 1 and the remote terminal 250 (the Qos parameter is an optional parameter).

After receiving the second remaining quality of service parameter, the remote terminal 250 may return a remote terminal return parameter based on the second remaining quality of service parameter in step S208. In step S208, the remote terminal 250 returns Qos parameters through a link establishment procedure or a link modification procedure, and the Qos parameters returned by the remote terminal 250 may include, but are not limited to, quality of service parameters between the remote terminal and a next-hop relay terminal in a parameter return path, wherein the next-hop relay terminal is a last-hop relay terminal in the reverse path of the parameter return path.

Referring to fig. 3, fig. 3 schematically illustrates a data flow diagram of a parameter transmission path and a parameter return path according to an exemplary embodiment of the present disclosure. As can be seen from fig. 3, when the network side 210 transmits data to the remote terminal 250, the data may flow from the network side 210 through the relay terminal 220, the relay terminal 230, and the relay terminal 240, and finally flow into the remote terminal 250. Thus, the data flow of the parameter transmission path is the direction of the network side 210 to the remote terminal 250, i.e. R- > R2- > R1- > RE.

Conversely, the data flow of the parameter return path is in the direction of the remote terminal 250 to the network side 210. The data in the parameter return path may be sent to the relay terminal 240, the relay terminal 230 and the relay terminal 220 by the remote terminal 250, and finally flow to the network side 210, i.e. RE- > R1- > R2- > R.

As can be seen from the parameter sending path and the parameter returning path in fig. 3, the next hop relay terminal of the remote terminal in the parameter returning path is the relay terminal 240, and thus, the Qos parameter returned by the remote terminal 250 includes the Qos parameter between < r1-RE >. The relay terminal 240 is the last hop relay terminal of the remote terminal in the opposite path of the parameter return path (i.e., the parameter transmission path). Through the steps, the remote terminal returns feedback information of the QoS implementation scheme of the U2N multi-hop, so that the subsequent relay terminal can communicate based on the feedback information.

In an exemplary embodiment of the present disclosure, for step S110, returning the second quality of service parameter based on the partitioned parameter includes returning, by the intermediate relay terminal, a relay terminal return parameter including an inter-terminal parameter that is a quality of service parameter between a last hop of the intermediate relay terminal in the parameter transmission path and the intermediate relay terminal, and an accumulated parameter that is a sum of quality of service parameters of all adjacent two terminals between the last hop of the intermediate relay terminal in the parameter transmission path and the remote terminal, the parameter transmission path being opposite to a data flow direction of the parameter return path.

The relay terminal return parameter may be related information such as a parameter returned by the intermediate relay terminal in the communication process. The inter-terminal parameter may be a quality of service parameter between a previous hop of the intermediate relay terminal and the intermediate relay terminal in the parameter transmission path, and the accumulated parameter is a sum of quality of service parameters of all adjacent two terminals between the previous hop of the intermediate relay terminal and the remote terminal in the parameter transmission path, where the data flow directions of the parameter transmission path and the parameter return path are opposite.

With continued reference to fig. 2, in step S209, the relay terminal 240 returns a relay terminal return parameter, that is, a Qos return parameter returned to the relay terminal 240, through a link establishment procedure or a link modification procedure, and the Qos return parameter of the relay terminal 240 may include two parts of contents, an inter-terminal parameter, which may be a quality of service parameter between a last hop of an intermediate relay terminal in the parameter transmission path and the intermediate relay terminal, and an accumulated parameter, which may be a sum of quality of service parameters of all adjacent two terminals between the last hop of the intermediate relay terminal in the parameter transmission path and the remote terminal.

In the parameter transmission path, the inter-terminal parameter returned from the relay terminal 240 (relay terminal r 1) is the Qos parameter of < r1-r2> because the last hop of the relay terminal 240 is the relay terminal 230 (relay terminal r 2), and the total Qos parameter of < r2-RE > is the cumulative parameter returned from the relay terminal 240.

In step S210, the relay terminal 230 returns a relay terminal return parameter through the link establishment procedure or the link modification procedure, and the last hop of the relay terminal 230 is the relay terminal 220 (relay terminal R) in the parameter transmission path for the inter-terminal parameter returned by the relay terminal 230 (relay terminal R2), so that the inter-terminal parameter is the Qos parameter of < R2-R >, and the total Qos parameter of < R-RE > for the accumulated parameter returned by the relay terminal 230. The parameters returned by the relay terminal 230 may also include Qos flow identification (PFI) of the PC 5. By adding the accumulated parameters to the return parameters of the relay terminal, the end-to-end Qos requirements can be guaranteed.

It should be noted that the terms "first", "second", "third", etc. are used in this disclosure only to distinguish between different quality of service parameters, and should not be construed to limit the present disclosure in any way.

In summary, in the communication method based on multi-hop relay of the present disclosure, each relay terminal returns the second quality of service parameter based on the subsequently received first quality of service parameter. In one aspect, a communication scheme is implemented in which multi-hop relay supports end-to-end requirements between a remote terminal and a network. On the other hand, when the single-hop relay is extended to the multi-hop relay, the accumulation parameter is added in the return parameter so as to ensure the service quality requirement between the end and the end, and the resource of the terminal is fully utilized so as to realize the purpose of communication.

It should be noted that although the steps of the method of the present invention are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in that particular order or that all of the illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

Further, in the present exemplary embodiment, there is also provided a communication apparatus based on multi-hop relay. Referring to fig. 4, the multi-hop relay based communication device 400 may include a communication module 410.

Specifically, the communication module 410 is configured to return, by each relay terminal, the second quality of service parameter based on the subsequently received first quality of service parameter.

In an exemplary embodiment of the present disclosure, the communication module 410 includes a parameter obtaining module, configured to receive an initial quality of service parameter sent by a network side, perform parameter mapping processing on the initial quality of service parameter based on a pre-configured parameter mapping rule, to obtain a PC5 QoS parameter, where the initial quality of service parameter is generated by a session management function of the network side and sent through a session establishment procedure or a session modification procedure.

In an exemplary embodiment of the present disclosure, the relay terminal includes an intermediate relay terminal and a first relay terminal connected to a network side, and the multi-hop relay-based communication apparatus 400 further includes a parameter transmitting module configured to provide, by the first relay terminal, one or more of a PC5 QoS parameter, a communication protocol layer identifier corresponding to each of the first relay terminal and the remote terminal, and a third quality of service parameter between the first relay terminal and an adjacent intermediate relay terminal to the intermediate relay terminal, based on the PC5 QoS flow, which is established by the first relay terminal through a link establishment procedure or a link modification procedure.

In an exemplary embodiment of the present disclosure, the communication module 410 includes a parameter segmentation module for performing a parameter segmentation process on the first quality of service parameter by each relay terminal and returning a second quality of service parameter based on the segmented parameter, the second quality of service parameter including an accumulated parameter, the accumulated parameter being derived based on the segmented parameter.

In one exemplary embodiment of the disclosure, the relay terminal comprises an intermediate relay terminal, and the parameter segmentation module comprises a parameter segmentation unit, and the parameter segmentation unit is configured to perform parameter segmentation processing on a first quality of service parameter by the intermediate relay terminal to obtain a first last hop reception parameter and a first residual quality of service parameter, where the first last hop reception parameter is a quality of service parameter with the first relay terminal, and the first residual quality of service parameter is a quality of service parameter between the intermediate relay terminal and the remote terminal.

In an exemplary embodiment of the disclosure, the intermediate relay terminal includes a first intermediate relay and a second intermediate relay, and the parameter segmentation unit further includes a parameter segmentation subunit, configured to send, by the first intermediate relay, a first remaining quality of service parameter to the second intermediate relay through a link establishment procedure or a link modification procedure, and perform, by the second intermediate relay, parameter segmentation processing on the first remaining quality of service parameter to obtain a second last hop reception parameter and a second remaining quality of service parameter.

In one exemplary embodiment of the present disclosure, the partitioned parameters include a second remaining quality of service parameter including a remote terminal return parameter, and the parameter partitioning module includes a first parameter return unit for transmitting the second remaining quality of service parameter to the remote terminal by a second intermediate relay through a link setup procedure or a link modification procedure, the second remaining quality of service parameter for returning a remote terminal return parameter fed back by the remote terminal, the remote terminal return parameter including a quality of service parameter between the remote terminal and a next hop relay terminal in a parameter return path, the next hop relay terminal being a last hop relay terminal in an opposite path of the parameter return path.

In one exemplary embodiment of the present disclosure, the second quality of service parameter includes a relay terminal return parameter, the parameter segmentation module includes a second parameter return unit for returning, by the intermediate relay terminal, the relay terminal return parameter including an inter-terminal parameter that is a quality of service parameter between a last hop of the intermediate relay terminal in the parameter transmission path and the intermediate relay terminal, and an accumulated parameter that is a sum of quality of service parameters of all adjacent two terminals between the last hop of the intermediate relay terminal in the parameter transmission path and the remote terminal, the parameter transmission path being opposite to a data flow direction of the parameter return path.

The details of the virtual module of each multi-hop relay-based communication device in the foregoing description have been described in detail in the corresponding multi-hop relay-based communication method, and details not disclosed may refer to the implementation details of the method section, so that they will not be described in detail.

It should be noted that although in the above detailed description several modules or units of a multi-hop relay based communication device are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

In addition, in an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above method is also provided.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, aspects of the present disclosure may be embodied in the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects that may be referred to herein generally as a "circuit," module, "or" system.

An electronic device 500 according to such an embodiment of the present disclosure is described below with reference to fig. 5. The electronic device 500 shown in fig. 5 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 5, the electronic device 500 is embodied in the form of a general purpose computing device. The components of the electronic device 500 may include, but are not limited to, the at least one processing unit 510 described above, the at least one memory unit 520 described above, a bus 530 connecting the different system components (including the memory unit 520 and the processing unit 510), and a display unit 540.

Wherein the storage unit stores program code that is executable by the processing unit 510 such that the processing unit 510 performs steps according to various exemplary embodiments of the present disclosure described in the above-mentioned "exemplary methods" section of the present specification.

The storage unit 520 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 521 and/or cache memory 522, and may further include Read Only Memory (ROM) 523.

The storage unit 520 may also include a program/utility 524 having a set (at least one) of program modules 525, such program modules 525 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 530 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 500 may also communicate with one or more external devices 570 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any device (e.g., router, modem, etc.) that enables the electronic device 500 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 550. Also, electronic device 500 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 560. As shown, network adapter 560 communicates with other modules of electronic device 500 over bus 530. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 500, including, but not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium having stored thereon a program product capable of implementing the method described above in the present specification is also provided. In some possible embodiments, the various aspects of the invention may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the invention as described in the "exemplary methods" section of this specification, when said program product is run on the terminal device.

Referring to fig. 6, a program product 600 for implementing the above-described method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of a readable storage medium include an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

Furthermore, the above-described drawings are only schematic illustrations of processes included in the method according to the exemplary embodiment of the present invention, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (13)

1. A multi-hop relay-based communication method, which is applied to a multi-hop relay terminal, the method comprising:

And returning a second service quality parameter by each relay terminal based on the subsequently received first service quality parameter.

2. The method of claim 1, wherein the first quality of service parameter comprises a PC5 QoS parameter, the method further comprising:

And receiving an initial service quality parameter, carrying out parameter mapping processing on the initial service quality parameter based on a pre-configured parameter mapping rule to obtain the PC5 QoS parameter, wherein the initial service quality parameter is generated by a session management function of a network side and is sent through a session establishment flow or a session modification flow.

3. The method according to claim 2, wherein the relay terminals include an intermediate relay terminal and a first relay terminal connected to a network side, the method further comprising:

And providing one or more of the following parameters, namely the PC5 QoS parameters, the communication protocol layer identifiers corresponding to the first relay terminal and the remote terminal respectively, and the third service quality parameters between the first relay terminal and the adjacent intermediate relay terminals, to the intermediate relay terminal based on the PC5 QoS flow, wherein the PC5 QoS flow is established by the first relay terminal through a link establishment flow or a link modification flow.

4. The method of claim 1, wherein the returning, by each of the relay terminals, the second quality of service parameter based on the subsequently received first quality of service parameter comprises:

And carrying out parameter segmentation processing on the first quality of service parameters by each relay terminal, and returning second quality of service parameters based on the segmented parameters, wherein the second quality of service parameters comprise accumulated parameters, and the accumulated parameters are obtained based on the segmented parameters.

5. The method of claim 4, wherein the relay terminals comprise intermediate relay terminals, and wherein the performing, by each of the relay terminals, the parameter segmentation process on the first quality of service parameter comprises:

and the intermediate relay terminal performs parameter segmentation processing on the first service quality parameter to obtain a first previous hop receiving parameter and a first residual service quality parameter, wherein the first previous hop receiving parameter is a service quality parameter between the first relay terminal and the first previous hop receiving parameter, and the first residual service quality parameter is a service quality parameter between the intermediate relay terminal and a remote terminal.

6. The method of claim 5, wherein the intermediate relay terminal comprises a first intermediate relay and a second intermediate relay, the method further comprising:

transmitting, by the first intermediate relay, the first remaining quality of service parameter to the second intermediate relay through a link establishment procedure or a link modification procedure;

And carrying out parameter segmentation processing on the first residual service quality parameter by the second intermediate relay to obtain a second last hop receiving parameter and a second residual service quality parameter.

7. The method of claim 4, wherein the partitioned parameters include a second remaining quality of service parameter, the second quality of service parameter including a remote terminal return parameter, the returning the second quality of service parameter based on the partitioned parameters comprising:

And the second residual service quality parameter is sent to a remote terminal by a second intermediate relay through a link establishment flow or a link modification flow, and is used for returning the remote terminal parameter fed back by the remote terminal, wherein the remote terminal parameter comprises the service quality parameter between the remote terminal and a next-hop relay terminal in a parameter return path, and the next-hop relay terminal is the last-hop relay terminal in the opposite path of the parameter return path.

8. The method of claim 4, wherein the second quality of service parameter comprises a relay terminal return parameter, and wherein the returning the second quality of service parameter based on the partitioned parameter comprises:

And returning a relay terminal return parameter by the intermediate relay terminal through a link establishment process or a link modification process, wherein the relay terminal return parameter comprises an inter-terminal parameter and an accumulated parameter, the inter-terminal parameter is a service quality parameter between a last hop of the intermediate relay terminal and the intermediate relay terminal in a parameter sending path, the accumulated parameter is a sum of service quality parameters of all adjacent two terminals between the last hop of the intermediate relay terminal and a remote terminal in the parameter sending path, and the data flow directions of the parameter sending path and the parameter return path are opposite.

9. The method according to any of claims 1-8, wherein the first quality of service parameter is a quality of service parameter received by each relay terminal from a previous hop when transmitting data from the relay terminal to a remote terminal, and the second quality of service parameter is a quality of service parameter returned by the remote terminal or the relay terminal.

10. A multi-hop relay-based communication device, applied to a multi-hop relay terminal, comprising:

And the communication module is used for returning the second service quality parameter by each relay terminal based on the subsequently received first service quality parameter.

11. An electronic device, comprising:

Processor, and

A memory having stored thereon computer readable instructions which, when executed by the processor, implement the multi-hop relay based communication method according to any of claims 1 to 9.

12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the multi-hop relay based communication method according to any of claims 1 to 9.

13. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the multihop relay based communication method according to any of claims 1 to 9.