CN116419256A

CN116419256A - Communication method, device and communication equipment

Info

Publication number: CN116419256A
Application number: CN202111641067.XA
Authority: CN
Inventors: 王文
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2023-07-11
Also published as: WO2023125318A1

Abstract

The application discloses a communication method, a device and communication equipment, and belongs to the technical field of communication. The method comprises the following steps: the method comprises the steps that a first relay terminal receives first information sent by a sending terminal, wherein the first information comprises first end-to-end QoS requirement information between the sending terminal and a target terminal and indication information used for indicating relay hops; and the first relay terminal executes target relay operation according to the first information.

Description

Communication method, device and communication equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a communication method, a device and communication equipment.

Background

The relay communication aims at expanding network coverage and improving user experience, so that a terminal at the edge of the network or outside the network coverage accesses the network through a relay in the network coverage to obtain network service.

Considering the requirements of public safety, the end-to-end relay communication needs to use the multi-hop relay communication, however, at present, the multi-hop relay communication is difficult to realize. For example, there is no relevant solution to the problems of how to perform relay selection of multi-hop relay, how to determine the hop count of multi-hop relay, how to guarantee the end-to-end QoS requirements, etc.

Disclosure of Invention

The embodiment of the application provides a communication method, a device and a communication device, which can solve the problem that the existing multi-hop relay communication has no relevant solution.

In a first aspect, a communication method is provided, including:

the method comprises the steps that a first relay terminal receives first information sent by a sending terminal, wherein the first information comprises first end-to-end quality of service (QoS) requirement information between the sending terminal and a target terminal and indication information used for indicating the relay hop count;

and the first relay terminal executes target relay operation according to the first information.

In a second aspect, a communication method is provided, including:

the method comprises the steps that a sending end sends first information to a first relay terminal, wherein the first information comprises first end-to-end quality of service (QoS) requirement information between the sending end and a target terminal, and indication information used for indicating the relay hop count.

In a third aspect, a communication method is provided, including:

the receiving end receives second information sent by the first relay terminal, the second information is determined by the first relay terminal according to the received first information, and the first information comprises first end-to-end quality of service (QoS) requirement information between a sending end sending the first information and a target terminal and indication information for indicating the relay hop count.

In a fourth aspect, there is provided a communication apparatus comprising:

the receiving module is used for receiving first information sent by a sending end, wherein the first information comprises first end-to-end quality of service (QoS) requirement information between the sending end and a target terminal and indication information for indicating the relay hop count;

and the execution module is used for executing target relay operation according to the first information.

In a fifth aspect, there is provided a communication apparatus comprising:

and the sending module is used for sending first information to the first relay terminal, wherein the first information comprises first end-to-end quality of service (QoS) requirement information between a sending end and a target terminal and indication information for indicating the relay hop count.

In a sixth aspect, there is provided a communication apparatus comprising:

the receiving module is used for receiving second information sent by the first relay terminal, the second information is determined by the first relay terminal according to the received first information, and the first information comprises first end-to-end quality of service (QoS) requirement information between a sending end for sending the first information and a target terminal and indication information for indicating the relay hop count.

In a seventh aspect, there is provided a communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the communication method according to the first, second or third aspects.

In an eighth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the communication method according to the first, second or third aspects.

In a ninth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a network side device program or instruction to implement the steps of the communication method according to the first, second or third aspect.

In a tenth aspect, there is provided a program/program product stored on a readable storage medium, which when executed by a processor, implements the steps of the communication method according to the first, second or third aspects.

An eleventh aspect provides a communication system comprising the communication apparatus according to the fourth, fifth and sixth aspects, the communication system being capable of implementing part or all of the steps of the communication method according to the first, second and third aspects by means of respective communication apparatuses.

In the embodiment of the application, a first relay terminal receives first information sent by a sending terminal, wherein the first information comprises first end-to-end QoS requirement information between the sending terminal and a target terminal and indication information for indicating relay hop count; and the first relay terminal executes target relay operation according to the first information. In the above, the first relay terminal performs the target relay operation according to the first information, thereby performing the relay communication service and improving the communication performance of the relay communication service.

Drawings

Fig. 1 is a block diagram of a network system according to an embodiment of the present application;

FIG. 2 is a flow chart of a communication method provided by an embodiment of the present application;

FIG. 3 is another flow chart of a communication method provided by an embodiment of the present application;

FIG. 4 is a further flowchart of a communication method provided by an embodiment of the present application;

fig. 5a is a schematic structural diagram of interaction between terminals provided in an embodiment of the present application;

FIG. 5b is a flow chart of a communication method provided by an embodiment of the present application;

fig. 5c is a flowchart of a relay hop count process provided in an embodiment of the present application;

fig. 5d is a further flowchart of the relay hop count process provided by the embodiments of the present application;

FIG. 6 is a block diagram of a communication device according to an embodiment of the present application;

FIG. 7 is another block diagram of a communication device provided in an embodiment of the present application;

fig. 8 is a further structural diagram of a communication device provided in an embodiment of the present application;

fig. 9 is a block diagram of a communication device provided in an embodiment of the present application;

fig. 10 is a block diagram of a terminal provided in an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the "first" and "second" distinguished objects generally are of the type and do not limit the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after. The term "transmission" in this application refers to the transmission of signals and is not intended to be limited to the transmission of signals in a narrow sense.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. However, the following description describes a New air interface (NR) system for purposes of example, and NR terminology is used in much of the following description, although the techniques are also applicable to applications other than NR system applications, such as generation 6 (6 ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), the terminal 11 may be a mobile phone, a Tablet Computer (Tablet Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (VUE), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), or other terminal-side devices, and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The communication method provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a communication method according to an embodiment of the present application, where the communication method includes:

step 201, a first relay terminal receives first information sent by a sending end, where the first information includes first end-to-end quality of service (Quality of Service, qoS) requirement information between the sending end and a target terminal, and indication information for indicating a relay hop count.

The transmitting end may be a source end terminal or a second relay terminal. If the transmitting end is a source end terminal, the first end-to-end QoS requirement information is end-to-end QoS requirement information between the source end terminal and a target terminal; if the transmitting end is the second relay terminal, the first end-to-end QoS requirement information is the end-to-end QoS requirement information between the second relay terminal and the target terminal. The first information is carried in at least one of a relay discovery request message and a direct establishment request message. The QoS requirement information includes QoS parameters and PQI (PC 5 QoS identifier), such as delay, bit error rate, guaranteed bit rate, and maximum bit rate.

Step 202, the first relay terminal executes target relay operation according to the first information.

After the first relay terminal receives the first information, a target relay operation is performed, for example, a next hop terminal may be determined according to the first information, and information sent to the next hop terminal may be determined.

In this embodiment, a first relay terminal receives first information sent by a sending terminal, where the first information includes first end-to-end QoS requirement information between the sending terminal and a target terminal, and indication information for indicating a relay hop count; and the first relay terminal executes target relay operation according to the first information. In the above, the first relay terminal performs the target relay operation according to the first information, thereby performing the relay communication service and improving the communication performance of the relay communication service.

For easy understanding, fig. 5a shows a terminal interaction structure diagram, and as shown in fig. 5a, the sending end includes a source terminal or a second relay terminal, where the second relay terminal is a relay terminal of a previous hop of the first relay terminal;

the receiving end comprises a target terminal or a third relay terminal, and the third relay terminal is a relay terminal of the next hop of the first relay terminal.

In one embodiment of the present application, the indication information includes at least one of the following:

(1) A first remaining number of relay hops, the first remaining number of relay hops being a number of relay hops between the first relay terminal and the target terminal;

(2) The first current hop count is a relay hop count between the source terminal and the second relay terminal, wherein the second relay terminal is the transmitting terminal. The first current hop count may be understood as the number of relay hops that have been used or completed.

(3) And the first target relay hop count is the maximum relay hop count between the source terminal and the target terminal. The first target relay hop count may be set by the source terminal, or may be configured by the network side device, for example, dynamically configured by the network side device, or may be preconfigured, for example, configured by a protocol, or preconfigured in the source terminal.

Specifically, the first target relay hop count is determined according to at least one of the following:

based on the end-to-end QoS requirements of the relay communication service;

based on policy parameter information configured or preconfigured by network side equipment, wherein the policy parameter information comprises a mapping relation between the first target relay hop count and a service identifier;

Based on implementation determination. For example, a communication environment determination based on relay communication traffic, such as city or suburb, how many barriers, etc.; the determination is based on the history information of the relay communication traffic, for example, the number of relay hops required for the previous relay communication traffic to reach the target terminal, and the like.

The first target relay hop count is determined by the source terminal.

(4) And a relay communication activation instruction for instructing the first relay terminal to perform relay communication, the relay communication activation instruction being transmitted to the first relay terminal by the source terminal.

In one embodiment of the present application, the target relay operation includes:

determining second information according to the first information, and sending the second information to the receiving end;

wherein the second information includes second end-to-end QoS requirement information between the first relay terminal and the target terminal, and at least one of:

(1) A second remaining number of relay hops, the second remaining number of relay hops being a number of relay hops between the receiving end and the target terminal;

(2) A second current hop count, where the second current hop count is a relay hop count between the sending end and the first relay terminal;

(3) A first target relay hop count;

Specifically, if the indication information includes the first remaining relay hop count, if the first remaining relay hop count is greater than or equal to 1, the second remaining relay hop count is the first remaining relay hop count minus 1.

And if the indication information comprises a first current hop count and the first target relay hop count, if the first current hop count is smaller than the first target relay hop count, the second current hop count is the first current hop count plus 1.

And if the indication information comprises a first current hop count, if the first current hop count is smaller than a second target relay hop count, the second current hop count is the first current hop count plus 1, wherein the second first target relay hop count is configured or preconfigured in a first relay terminal according to network side equipment.

In the case where the indication information includes the relay communication activation indication, the second current hop count is 1. In addition, when the first information includes a relay communication activation instruction, the first information is sent from the source terminal to the first relay terminal, that is, when the first information includes a relay communication activation instruction, the sending terminal is the source terminal.

In one embodiment of the present application, the second end-to-end QoS requirement information is determined according to at least one of:

the configured relay policy parameters; including static mapping parameters, such as parameters in the first end-to-end QoS requirement information including a 100ms delay, 100ms can be mapped to 20ms and 80ms, where 80ms can be used as parameters in the second end-to-end QoS requirement information. According to this relay strategy, the received 100ms delay can be split into 20ms delay and 80ms delay. The second relay terminal receives 80ms and, according to a static configuration, e.g., 20ms and 60ms, the second end-to-end QoS information determined by the second relay terminal includes a 60ms delay parameter, and so on.

A second remaining number of relay hops;

the measurement signal value between the first relay terminal and the transmitting end, for example, the measurement signal may be a Sidelink (SL) reference signal received power (Reference Signal Receiving Power, RSRP);

implementation of relay communication services, e.g., determination of, e.g., urban or suburban areas, how many barriers, etc., based on the communication environment of the relay communication services; and based on historical information determination of relay communication traffic, etc.

In one embodiment of the present application, the first end-to-end QoS requirement information includes a first end-to-end QoS parameter, such as delay, PQI, bit error rate, packet error rate, bit rate, etc., and the second end-to-end QoS requirement information includes the second end-to-end QoS parameter;

The first end-to-end QoS parameter is composed of a second end-to-end QoS parameter and a third end-to-end QoS parameter, the first end-to-end QoS parameter is a QoS parameter between the sending end and the target terminal, the second end-to-end QoS parameter is a QoS parameter between the first relay terminal and the target terminal, and the third end-to-end QoS parameter is a QoS parameter between the sending end and the first relay terminal.

In one embodiment of the present application, the first relay terminal performs a target relay operation according to the first information, including:

and under the condition that the first relay terminal receives a plurality of pieces of first information, determining target information according to the plurality of pieces of first information, wherein the target information is first information meeting a preset condition in the plurality of pieces of first information, and the first information meeting the preset condition comprises first information with the largest first residual relay hop number or first information with the smallest first current hop number. And under the condition that the first relay terminal receives a plurality of pieces of first information, executing target relay operation according to target information, and taking a transmitting end for transmitting the target information as a last hop terminal of the first relay terminal, wherein the last hop terminal can be a relay terminal or a source terminal.

In one embodiment of the present application, the method further comprises: the first relay terminal receives a response message sent by the receiving terminal, wherein the response message comprises an identifier of the first relay terminal and an identifier of the receiving terminal. If the receiving end is the target terminal, the response message comprises the identification of the target terminal, and if the receiving end is the third relay terminal, the response message comprises the identification of the third relay terminal. Preferably, the response message includes an identification of the first relay terminal, an identification of the third relay terminal, an identification of the source terminal, and an identification of the target terminal.

Wherein the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

In the foregoing, the second information further includes at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

relay service codes (relay service code, RSC).

The second information may also be carried in a relay discovery request message or a direct establishment request message, and further, at least one of the following may also be carried in the relay discovery request message or the direct establishment request message:

The identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

RSC。

referring to fig. 3, fig. 3 is a flowchart of a communication method provided in an embodiment of the present application, and as shown in fig. 3, the communication method provided in the embodiment of the present application includes:

step 301, a transmitting end sends first information to a first relay terminal, where the first information includes first end-to-end quality of service QoS requirement information between the transmitting end and a target terminal, and indication information for indicating a relay hop count.

The transmitting end may be a source end terminal or a second relay terminal. The first information is carried in at least one of a relay discovery request message and a direct establishment request message.

In this embodiment, the sending end sends first information to the first relay terminal, where the first information includes first end-to-end QoS requirement information between the sending end and the target terminal, and indication information for indicating the number of hops of the relay, so that the first relay terminal can execute the relay communication service according to the first information, and improve communication performance of the relay communication service.

Further, the indication information includes at least one of:

A first remaining number of relay hops, the first remaining number of relay hops being a number of relay hops between the first relay terminal and the target terminal;

a first current hop count, where the first current hop count is a relay hop count between the source terminal and the second relay terminal, and the second relay terminal is the transmitting terminal;

a first target relay hop count, the first target relay hop count being a maximum relay hop count between a source terminal and the target terminal;

and a relay communication activation instruction for instructing the first relay terminal to perform relay communication.

Further, the first target relay hop count is determined according to at least one of:

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the transmitting end comprises any one of the following:

a source terminal;

and the second relay terminal is a relay terminal of the previous hop of the first relay terminal.

Referring to fig. 4, fig. 4 is a flowchart of a communication method provided in an embodiment of the present application, and as shown in fig. 4, the communication method provided in the embodiment of the present application includes:

Step 401, the receiving end receives second information sent by the first relay terminal, where the second information is determined by the first relay terminal according to the received first information, and the first information includes first end-to-end quality of service QoS requirement information between the sending end sending the first information and the target terminal, and indication information for indicating the number of relay hops.

In this embodiment, the receiving end receives second information sent by the first relay terminal, where the second information is determined by the first relay terminal according to the received first information, and the first information includes first end-to-end QoS requirement information between the sending end sending the first information and the target terminal, and indication information for indicating the number of hops of the relay. The method can improve the communication performance of the relay communication service.

Further, the indication information includes at least one of:

Further, the second information includes second end-to-end QoS requirement information between the first relay terminal and the target terminal, and at least one of:

a second remaining number of relay hops, the second remaining number of relay hops being a number of relay hops between the receiving end and the target terminal;

a second current hop count, where the second current hop count is a relay hop count between the sending end and the first relay terminal;

first target relay hop count.

Further, the first end-to-end QoS requirement information includes a first end-to-end QoS parameter, and the second end-to-end QoS requirement information includes a second end-to-end QoS parameter;

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the second information further includes at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

the relay service code RSC.

Further, the method further comprises:

the receiving end sends a response message to the first relay terminal, wherein the response message comprises the identification of the first relay terminal and the identification of the receiving end. Wherein the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

Further, the receiving end comprises any one of the following:

a third relay terminal, which is a relay terminal of a next hop of the first relay terminal;

And the target terminal.

The communication method provided in the present application is exemplified below.

The operations performed by the source terminal mainly include:

(1) Setting a maximum relay hop count N, wherein N can be set by a source terminal or configured or preconfigured by network side equipment;

(2) Setting end-to-end QoS requirement information;

(3) Transmitting N and end-to-end QoS requirement information to a relay terminal;

the operations performed by the relay terminal mainly comprise:

(1) Judging whether the relay is used as a next hop relay according to N and/or the previous hop relay hop count T, if so:

setting the hop count in the present hop relay, such as n=n-1 or t=t+1;

splitting the end-to-end QoS requirement information of the last hop, wherein a splitting rule is configured to a relay terminal by network side equipment or a pre-configuration mode, or the relay terminal is executed based on implementation;

transmitting the updated N and/or T in the present jump;

transmitting the split end-to-end QoS requirement information in the present jump;

wherein, the judging basis in the above judgment comprises:

whether the received N is equal to 0 or not, if not, the relay terminal is used as a next hop relay;

whether T is equal to N, if not, the relay terminal is used as the next hop relay; the method comprises the steps of carrying out a first treatment on the surface of the

(2) If receiving N or T sent by a plurality of other relay terminals:

Selecting the relay terminal with the maximum N as the last hop terminal;

selecting a relay with the minimum T as a last hop terminal;

the operation of the target terminal mainly comprises the following steps:

(1) Relay selection:

if N or T transmitted by a plurality of relay terminals is received, at least one of the following is executed:

(11) Selecting the relay terminal with the maximum N as the last hop terminal;

(12) Selecting a relay terminal with the minimum T as a last hop terminal;

fig. 5b is a flowchart of a communication method provided in the embodiment of the present application, where the flow involves three relay terminals, and the source terminal sets a maximum relay hop count N, and the relay terminal determines whether to execute multi-hop relay communication according to the received maximum relay hop count N, and sets a current hop count, and the specific process includes:

step 501, the source terminal determines that the target terminal cannot be reached through a direct path, and determines that the target terminal is found through a relay mode or a relay communication link is established with the target terminal, and then the source terminal sends a relay discovery request message or a direct establishment request message, where the request message carries:

(1) A source terminal identifier;

(2) A target terminal identifier;

(3) First information comprising at least one of:

(31) Maximum relay hop count N, N > =0, N is a positive integer, that is, represents the maximum accepted relay hop count of the source terminal;

where n=0, it indicates that the source terminal does not need to establish an indirect link with the target terminal (i.e. does not communicate through a relay);

n=1, which indicates that the source terminal can accept the one-hop relay to establish relay communication with the target terminal;

n=2, which means that the source terminal can accept 2-hop relay to establish relay communication with the target terminal, where N is greater than 2, and so on.

(32) First end-to-end QoS requirement information including the entire end-to-end QoS parameters from the source terminal to the target terminal.

(33) A relay service code;

step 502, the relay terminal #1 receives the first information, where the first information includes the relay discovery request message or the direct establishment request message, and the relay terminal #1 performs a first operation according to the first information, where the first operation includes: judging whether the maximum relay hop count (also simply called maximum hop count) N in the first information is greater than or equal to 1, if not, ignoring the first information; if yes, the following operations are executed:

in one embodiment, a first hop count processing operation is performed:

I.e. reset the maximum hop count: n=n-1;

another implementation method performs a second hop count processing operation:

i.e. the current hop count t=1 is set;

splitting the QoS parameters, including splitting the end-to-end QoS parameters in the first information into first end-to-end QoS parameters, and second end-to-end QoS parameters, wherein the first end-to-end QoS parameters are QoS requirement information from a source end terminal to a relay terminal #1, and the second end-to-end QoS parameters are QoS requirement information from the relay terminal #1 to a target terminal;

determining second information, the second information comprising at least one of:

in the case of performing the first hop count process, the second information includes updated N;

in the case of performing the second hop count processing, the second information includes the maximum hop count N (which is not updated N) and the updated current hop count T.

Step 503, the relay terminal #1 sends second information, where the second information is carried in a relay discovery request message or a direct establishment request message, and the relay discovery request message or the direct establishment request message further carries:

a source terminal identifier;

a target terminal identifier;

relay terminal #1 is identified.

The second information may also include:

a source terminal identifier;

a target terminal identifier;

Relay terminal #1 is identified.

Step 504, the relay terminal #2 receives the second information of the relay terminal #1, and performs a first operation according to the second information, where the first operation includes at least one of the following:

one embodiment is: judging whether the maximum hop count N in the second information is greater than or equal to 1, if not, ignoring the second information; if yes, the following operations are executed:

performing a first hop count processing operation:

i.e. reset the maximum hop count: n=n-1;

splitting the QoS parameters, including splitting the end-to-end QoS requirement information in the first information into a first end-to-end QoS parameter, and a second end-to-end QoS parameter, wherein the first end-to-end QoS parameter is QoS requirement information from the relay terminal #1 to the relay terminal 2, and the second end-to-end QoS parameter is QoS requirement information from the relay terminal #2 to the target terminal;

in another implementation method, whether the hop count T in the second information is smaller than the maximum hop count N is determined, if yes, the second hop count processing operation is executed:

i.e. the current hop count t=t+1 (the second hop is 2);

splitting the QoS parameters, including splitting second end-to-end QoS requirement information in second information into a first end-to-end QoS parameter and a second end-to-end QoS parameter, wherein the first end-to-end QoS parameter is QoS requirement information from a relay terminal #1 to a relay terminal #2, and the second end-to-end QoS parameter is QoS requirement information from the relay terminal #2 to a target terminal;

Step 505, the relay terminal #2 sends second information, where the second information is carried in a relay discovery request message or a direct establishment request message, and the relay discovery request message or the direct establishment request message further carries:

a source terminal identifier;

a target terminal identifier;

a relay terminal #2 identification;

relay terminal #1 is identified.

The second information includes at least one of:

Step 506, the relay terminal #3 receives the second information of the relay terminal #2, and performs a first operation according to the second information, where the first operation includes at least one of the following:

one embodiment is: judging whether the maximum hop count N in the second information is greater than or equal to 1, if not, ignoring the second information, and if so, executing the following operations:

performing a first hop count processing operation:

resetting the maximum hop count: n=n-1;

splitting the QoS parameters, including splitting end-to-end QoS requirement information in second information into a first end-to-end QoS parameter and a second end-to-end QoS parameter, wherein the first end-to-end QoS parameter is QoS requirement information from a relay terminal #2 to a relay terminal #3, and the second end-to-end QoS parameter is QoS requirement information from the relay terminal #3 to a target terminal;

One embodiment is: judging whether the hop count T in the second information is smaller than the maximum hop count N, if not, ignoring the second information, and if so, executing the following operations:

performing a second hop count processing operation:

setting a current hop count t=t+1 (the second hop is 3);

QoS parameter splitting includes splitting end-to-end QoS requirement information in second information into a first end-to-end QoS parameter and a second end-to-end QoS parameter, wherein the first end-to-end QoS parameter is QoS requirement information from a relay terminal #2 to a relay terminal #3, and the second end-to-end QoS parameter is QoS requirement information from the relay terminal #3 to a target terminal.

Step 507, the relay terminal #3 sends second information, where the second information is carried in a relay discovery request message or a direct establishment request message, and the relay discovery request message or the direct establishment request message further carries:

a source terminal identifier;

a target terminal identifier;

a relay terminal #2 identification;

relay terminal # 3.

The second information includes at least one of:

Step 508, the target terminal receives the relay discovery request message or the direct establishment request message of the relay terminal #3, where the message carries the identifier of the target terminal, and sends at least one of the following messages to the relay terminal #3:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

The message includes at least one of the following

A source terminal identifier;

a target terminal identifier;

relay terminal # 3.

Note that if the target terminal receives the second information of the plurality of relay terminals, then:

-selecting the N-maximum relay as the last hop relay;

-selecting the relay with the smallest T as the last hop relay;

step 509, if the relay terminal #3 receives the relay discovery reply message or the direct establishment acceptance message or the direct establishment request message of the target terminal and carries the identifier of the target terminal, it sends at least one of the following messages to the relay terminal #2:

relaying the discovery reply message;

directly establishing an acceptance message;

directly establishing a request message;

the message includes at least one of the following

A source terminal identifier;

a target terminal identifier;

a relay terminal #3 identification (i.e., last hop terminal identification);

A relay terminal #2 identifier (i.e., a present hop terminal identifier);

step 510, if the relay terminal #2 receives the relay discovery reply message or the direct establishment acceptance message or the direct establishment request message of the relay terminal 3 and carries the identifier of the target terminal, it sends at least one of the following messages to the relay terminal #1:

relaying the discovery reply message;

directly establishing an acceptance message;

directly establishing a request message;

the message includes at least one of the following

A source terminal identifier;

a target terminal identifier;

a relay terminal #1 identification;

relay terminal #2 is identified.

Step 511, when the relay terminal #2 receives the relay discovery reply message or the direct establishment acceptance message or the direct establishment request message of the relay terminal 3 and carries the identifier of the target terminal, it sends at least one of the following messages to the source terminal:

relaying the discovery reply message;

directly establishing an acceptance message;

directly establishing a request message;

the message includes at least one of the following

A source terminal identifier;

a target terminal identifier;

relay terminal #1 is identified.

Fig. 5c is a flowchart of a communication method provided in the embodiment of the present application, where the flowchart relates to three relay terminals, and when the relay terminals receive a plurality of second information, a first hop count processing manner is adopted, and the relay terminal accepts a previous hop relay with a larger N value, and executes the hop count processing of the present hop relay according to the N value, where the specific process includes:

Step 51, the relay terminal Z receives second information of the relay terminal X, wherein the second information carries the maximum hop count N1, and receives second information of the relay terminal Y, and the second information carries the maximum hop count N2;

step 52, the relay terminal Z determines the sizes of N1 and N2, uses the transmitting end with the largest relay hop count in N1 and N2 as the last hop relay terminal, and executes the first hop count processing according to the relay hop count with the largest value, for example, if N1 is greater than N2, executes the hop count processing according to the relay hop count transmitted by the relay terminal X.

Fig. 5d is a flowchart of a communication method provided in the embodiment of the present application, where the flowchart includes three relay terminals, and the relay terminals receive a plurality of second information, receive a current hop count T minimum in a second hop count processing manner, and execute the current hop count processing according to the value of T. The specific process comprises the following steps:

step 51', the relay terminal Z receives second information of the relay terminal X, where the second information carries the current hop count T1, and receives second information of the relay terminal Y, where the second information carries the current hop count T2;

step 52', the relay terminal Z determines the sizes of T1 and T2, determines the transmitting end of T with the smallest transmitting value as the last hop relay terminal, and performs the second relay hop count processing according to T with the smallest value, for example, if T1 is greater than T2, performs the hop count processing according to the current hop count transmitted by the relay terminal X.

The communication method in the embodiment of the application is suitable for a multi-hop relay communication scene under the U2U relay and is also suitable for a multi-hop relay communication scene under the U2N relay.

It should be noted that, in the communication method provided in the embodiment of the present application, the execution body may be a communication device, or a control module in the communication device for executing the communication method.

In the following embodiments, a communication device is described by taking a communication method performed by the communication device as an example.

Referring to fig. 6, fig. 6 is a block diagram of a communication device provided in an embodiment of the present application, a first communication device 600 includes:

a first receiving module 601, configured to receive first information sent by a sending end, where the first information includes first end-to-end quality of service QoS requirement information between the sending end and a target terminal, and indication information for indicating a relay hop count;

and an execution module 602, configured to execute a target relay operation according to the first information.

Further, the indication information includes at least one of:

Further, the target relay operation includes:

determining second information according to the first information, wherein the second information comprises second end-to-end QoS requirement information between the first relay terminal and the target terminal, and at least one of the following:

a first target relay hop count;

and sending the second information to the receiving end.

Further, in the case that the indication information includes the first remaining relay hop count, if the first remaining relay hop count is greater than or equal to 1, the second remaining relay hop count is the first remaining relay hop count minus 1.

Further, if the indication information includes a first current hop count and the first target relay hop count, if the first current hop count is smaller than the first target relay hop count, the second current hop count is the first current hop count plus 1.

Further, the second end-to-end QoS requirement information is determined according to at least one of:

the configured relay policy parameters;

a second remaining number of relay hops;

a measurement signal value between the first relay terminal and the transmitting end;

and realizing relay communication service.

Further, if the indication information includes a first current hop count, if the first current hop count is smaller than a second target relay hop count, the second current hop count is the first current hop count plus 1, where the second target relay hop count is configured or preconfigured by a network side device.

Further, in the case where the first information includes the relay communication activation indication, the second current hop count is 1.

based on the end-to-end QoS requirements of the relay communication service;

Based on implementation determination.

Further, the executing module 602 is configured to determine, when the first relay terminal receives a plurality of pieces of first information, target information according to the plurality of pieces of first information, where the target information is first information that satisfies a preset condition in the plurality of pieces of first information.

Further, the first information meeting the preset condition includes first information with the largest number of the remaining relay hops or first information with the smallest number of the current hops.

Further, the sending end sending the target information is the last hop terminal of the first relay terminal.

Further, the second information further includes at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

the relay service code RSC.

Further, the first communication device 600 further includes a second receiving module, configured to receive a response message sent by the receiving end, where the response message includes an identifier of the first relay terminal and an identifier of the receiving end.

Further, the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

Further, the first information is carried in at least one of:

a relay discovery request message;

the request message is directly established.

Further, the transmitting end comprises any one of the following:

a source terminal;

the second relay terminal is a relay terminal of the previous hop of the first relay terminal;

and/or the number of the groups of groups,

the receiving end comprises any one of the following:

and the target terminal.

The first communication device 600 provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Referring to fig. 7, fig. 7 is a block diagram of a communication device provided in an embodiment of the present application, and a second communication device 700 includes:

a sending module 701, configured to send first information to a first relay terminal, where the first information includes first end-to-end quality of service QoS requirement information between the sending end and a target terminal, and indication information for indicating a relay hop count.

Further, the indication information includes at least one of:

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the first information is carried in at least one of:

a relay discovery request message;

the request message is directly established.

Further, the transmitting end comprises any one of the following:

a source terminal;

The second communication device 700 provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Referring to fig. 8, fig. 8 is a block diagram of a communication device according to an embodiment of the present application, and a third communication device 800 includes:

a receiving module 801, configured to receive second information sent by a first relay terminal, where the second information is determined by the first relay terminal according to the received first information, and the first information includes first end-to-end quality of service QoS requirement information between a sending end that sends the first information and a target terminal, and indication information that indicates a relay hop count;

Further, the indication information includes at least one of:

first target relay hop count.

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the second information further includes at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

the relay service code RSC.

Further, the third communication device 800 further includes a sending module, configured to send a response message to the first relay terminal, where the response message includes an identifier of the first relay terminal and an identifier of the receiving end.

Further, the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

Further, the receiving end comprises any one of the following:

and the target terminal.

The third communication device 800 provided in this embodiment of the present application can implement each process implemented by the method embodiment of fig. 4, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

The first communication device 600, the second communication device 700, and the third communication device 800 in the embodiments of the present application may be devices, or may be components, integrated circuits, or chips in a terminal.

The first communication device 600, the second communication device 700, and the third communication device 800 in the embodiments of the present application may be devices having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

Optionally, as shown in fig. 9, the embodiment of the present application further provides a communication device 90, including a processor 91, a memory 92, and a program or an instruction stored in the memory 92 and capable of running on the processor 91, where, for example, the communication device 90 is a terminal, the program or the instruction is executed by the processor 91 to implement each process of the communication method embodiment shown in fig. 2 and achieve the same technical effects.

Fig. 10 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1000 includes, but is not limited to: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 10 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 1001 processes the downlink data with the processor 1010; and, the uplink data is transmitted to the base station. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1009 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1010 may include one or more processing units; alternatively, the processor 1010 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

In one embodiment of the present application, the radio frequency unit 1001 is configured to receive first information sent by a sending end, where the first information includes first end-to-end quality of service QoS requirement information between the sending end and a target terminal, and indication information for indicating a relay hop count;

and a processor 1010 for performing a target relay operation according to the first information.

Further, the indication information includes at least one of:

Further, the target relay operation includes:

a first target relay hop count;

and the first relay terminal sends the second information to the receiving terminal.

the configured relay policy parameters;

a second remaining number of relay hops;

and realizing relay communication service.

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the processor 1010 is further configured to determine, if a plurality of pieces of the first information are received, target information according to the plurality of pieces of the first information;

the target information is first information meeting preset conditions in the plurality of pieces of first information.

Further, the second information further includes at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

The identification of the transmitting end;

the relay service code RSC.

Further, the radio frequency unit 1001 is further configured to receive a response message sent by the receiving end, where the response message includes an identifier of the first relay terminal and an identifier of the receiving end.

Further, the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

Further, the first information is carried in at least one of:

a relay discovery request message;

the request message is directly established.

Further, the transmitting end comprises any one of the following:

a source terminal;

and/or the number of the groups of groups,

the receiving end comprises any one of the following:

and the target terminal.

The terminal 1000 provided in the foregoing embodiment can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and in order to avoid repetition, a description is omitted here.

In another embodiment of the present application, the radio frequency unit 1001 is configured to send first information to a first relay terminal, where the first information includes first end-to-end quality of service QoS requirement information between the sending end and a target terminal, and indication information for indicating a relay hop count.

Further, the indication information includes at least one of:

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the first information is carried in at least one of:

a relay discovery request message;

the request message is directly established.

Further, the transmitting end comprises any one of the following:

A source terminal;

The terminal 1000 provided in the foregoing embodiment can implement each process implemented by the method embodiment of fig. 3, and achieve the same technical effects, and in order to avoid repetition, a description is omitted here.

In yet another embodiment of the present application, the radio frequency unit 1001 is configured to receive second information sent by a first relay terminal, where the second information is determined by the first relay terminal according to the received first information, and the first information includes first end-to-end quality of service QoS requirement information between a sending end that sends the first information and a target terminal, and indication information that indicates a relay hop count;

further, the indication information includes at least one of:

first target relay hop count.

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

Further, the second information further includes at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

the relay service code RSC.

Further, the radio frequency unit 1001 is further configured to send a response message to the first relay terminal, where the response message includes an identifier of the first relay terminal and an identifier of the receiving end.

Further, the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

Further, the receiving end comprises any one of the following:

And the target terminal.

The terminal 1000 provided in the foregoing embodiments can implement each process of each method embodiment and achieve the same technical effects, and in order to avoid repetition, a description is omitted here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction realizes each process of the above method embodiments, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The processor is a processor in the terminal or the network side device described in the foregoing embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a network side device program or instruction, so as to implement each process of the above method embodiments, and achieve the same technical effect, so that repetition is avoided, and no redundant description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a program/program product stored in a readable storage medium, where the program/program product realizes the processes of the above method embodiments and achieves the same technical effects when executed by a processor, and for avoiding repetition, the description is omitted herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method of communication, comprising:

2. The method of claim 1, wherein the indication information comprises at least one of:

the first current hop count is a relay hop count between a source terminal and a second relay terminal, wherein the second relay terminal is the transmitting terminal;

a first target relay hop count, the first target relay hop count being a maximum relay hop count between the source terminal and the target terminal;

3. The method of claim 2, wherein the target relay operation comprises:

Determining second information according to the first information, and sending the second information to the receiving end; wherein the second information includes second end-to-end QoS requirement information between the first relay terminal and the target terminal, and at least one of:

first target relay hop count.

4. A method according to claim 3, wherein, in case the indication information comprises the first remaining relay hop count, the second remaining relay hop count is the first remaining relay hop count minus 1 if the first remaining relay hop count is greater than or equal to 1.

5. A method according to claim 3, wherein, in case the indication information comprises a first current hop count and the first target relay hop count, the second current hop count is the first current hop count plus 1 if the first current hop count is smaller than the first target relay hop count.

6. A method according to claim 3, wherein the second end-to-end QoS requirement information is determined according to at least one of:

the configured relay policy parameters;

a second remaining number of relay hops;

and realizing relay communication service.

7. The method of claim 3, wherein if the indication information includes a first current hop count, the second current hop count is the first current hop count plus 1 if the first current hop count is less than a second target relay hop count, wherein the second target relay hop count is configured or preconfigured by a network side device.

8. A method according to claim 3, wherein the second current hop count is 1 in case the first information comprises the relay communication activation indication.

9. The method of claim 8, wherein the first target number of relay hops is determined according to at least one of:

based on the end-to-end QoS requirements of the relay communication service;

Based on implementation determination.

10. The method of claim 3, wherein the first end-to-end QoS requirement information comprises a first end-to-end QoS parameter and the second end-to-end QoS requirement information comprises the second end-to-end QoS parameter;

11. A method according to any of claims 1-3, wherein the first relay terminal performs a target relay operation according to the first information, comprising:

determining target information according to a plurality of pieces of first information when the first relay terminal receives the plurality of pieces of first information;

12. The method of claim 11, wherein the first information satisfying the preset condition includes first information having a maximum number of remaining relay hops or first information having a minimum number of first current hops.

13. The method of claim 11, wherein the transmitting end that transmits the target information is a last hop terminal of the first relay terminal.

14. A method according to claim 3, wherein the second information further comprises at least one of:

the identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

the relay service code RSC.

15. A method according to claim 3, characterized in that the method further comprises:

the first relay terminal receives a response message sent by the receiving terminal, wherein the response message comprises an identifier of the first relay terminal and an identifier of the receiving terminal.

16. The method of claim 15, wherein the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

17. The method of claim 1, wherein the first information is carried in at least one of:

a relay discovery request message;

the request message is directly established.

18. The method according to any one of claims 1-10, 12-17, wherein the transmitting end comprises any one of the following:

A source terminal;

and/or the number of the groups of groups,

the receiving end comprises any one of the following:

and the target terminal.

19. A method of communication, comprising:

20. The method of claim 19, wherein the indication information comprises at least one of:

21. The method of claim 20, wherein the first target number of relay hops is determined based on at least one of:

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

22. The method of claim 19, wherein the first information is carried in at least one of:

a relay discovery request message;

the request message is directly established.

23. The method according to any one of claims 19-22, wherein the transmitting end comprises any one of:

a source terminal;

24. A method of communication, comprising:

25. The method of claim 24, wherein the indication information comprises at least one of:

26. The method of claim 24, wherein the second information comprises second end-to-end QoS requirement information between the first relay terminal and a target terminal, and at least one of:

First target relay hop count.

27. The method of claim 26, wherein the first end-to-end QoS requirement information comprises a first end-to-end QoS parameter and the second end-to-end QoS requirement information comprises the second end-to-end QoS parameter;

28. The method of claim 25, wherein the first target number of relay hops is determined based on at least one of:

based on the end-to-end QoS requirements of the relay communication service;

based on implementation determination.

29. The method of claim 24, wherein the second information further comprises at least one of:

Identification of the source terminal;

the identification of the target terminal;

the identity of the first relay terminal;

the identification of the transmitting end;

the relay service code RSC.

30. The method of claim 24, wherein the method further comprises:

the receiving end sends a response message to the first relay terminal, wherein the response message comprises the identification of the first relay terminal and the identification of the receiving end.

31. The method of claim 30, wherein the response message is carried in at least one of:

relaying the discovery reply message;

directly establishing an acceptance message;

the request message is directly established.

32. The method according to any one of claims 24-31, wherein the receiving end comprises any one of:

and the target terminal.

33. A communication device, comprising:

34. The apparatus of claim 33, wherein the indication information comprises at least one of:

a first remaining number of relay hops, the first remaining number of relay hops being a number of relay hops between a first relay terminal and the target terminal;

35. A communication device, comprising:

36. The apparatus of claim 35, wherein the indication information comprises at least one of:

37. A communication device, comprising:

38. The apparatus of claim 37, wherein the indication information comprises at least one of:

39. A communication device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the communication method of any of claims 1 to 32.

40. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the communication method according to any of claims 1 to 32.