WO2023066126A1

WO2023066126A1 - Method and device for sending discovery message

Info

Publication number: WO2023066126A1
Application number: PCT/CN2022/125093
Authority: WO
Inventors: 翟海涛; 赵亚利; 张惠英
Original assignee: 大唐移动通信设备有限公司
Priority date: 2021-10-22
Filing date: 2022-10-13
Publication date: 2023-04-27
Also published as: CN116017624A

Abstract

A method and device for sending a discovery message, the method comprising: receiving a first indication message, and detecting N trigger conditions, wherein the first indication message is a discovery message indicating to send a ProSe service, the first indication message is a discovery message indicating that the type of the discovery message is a ProSe service, and the first indication message is for indicating service features of the discovery message of the ProSe service. In the described method, first indication information indicating to send a discovery message of a ProSe service is described in detail. By means of the first indication information, the discovery message of the ProSe service needing to be sent can be accurately identified, and thus the wide coverage of the ProSe service may be achieved.

Description

Method and device for sending discovery message

Cross References to Related Applications

This application claims priority to a Chinese patent application filed with the China Patent Office on October 22, 2021, with application number 202111232931.0, and application title "A Method and Device for Sending Discovery Messages", the entire contents of which are incorporated herein by reference. Applying.

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a method and device for sending a discovery message.

Background technique

In the field of wireless communication technology, the communication methods between terminals include cellular network communication and direct communication. The schematic diagram of cellular network communication is shown in Figure 1, and the schematic diagram of direct communication is shown in Figure 2. In cellular network communication, terminals and The communication between terminals is realized through the base station. The terminal and the base station communicate through the Uu interface. When the terminal UE1 communicates with the terminal UE2, the terminal UE1 forwards the signal to the base station through the Uu interface, and then the base station sends the received signal to the terminal. UE2; in direct communication, the communication between terminals is realized through a direct communication link (Sidelink link), and the wireless interface corresponding to the direct communication link is called a Sidelink interface or a PC5 interface. When communicating over distance, the signal can be transmitted over a direct communication link.

When the distance between two terminals is long, in order to expand the network coverage, a relay terminal is introduced. The schematic diagram of the relay terminal is shown in Figure 3. The relay terminal and the base station use the Uu interface to transmit data. Remote terminals use Sidelink interface or PC5 interface to transmit data. To realize long-distance communication between two terminals, it is necessary to select a terminal between the two terminals as a relay terminal. long-distance communication between terminals.

The terminal realizes the discovery of the short-distance terminal by sending or receiving the discovery signal. There are two types of terminals to be discovered, one is the relay terminal, and the other is the terminal with the proximity service (ProSe) service. The terminal is in the When sending a discovery message, since the access layer (Access Stratum, AS) only records the detailed information of the relay terminal, the AS layer receives or sends signals on the air interface when the terminal communicates, so that the terminal cannot send a discovery related to the ProSe service. information.

Contents of the invention

The present disclosure provides a method and device for sending a discovery message. Through the detailed definition of the indication message about the ProSe service and the description of the preset trigger condition set, the terminal can determine that the discovery message is a discovery message of the ProSe service, and The discovery message of the ProSe service can be sent to other terminals.

In a first aspect, the present disclosure provides a method for sending a discovery message, the method including:

receiving a first indication message;

Determine whether to send a ProSe service discovery message according to the first indication message;

The first indication message includes one or a combination of the following:

The first indication message is a discovery message indicating to send a ProSe service;

The first indication message is a discovery message indicating that the type of the discovery message is a ProSe service;

The first indication message is a service feature indicating a discovery message of a ProSe service, wherein the service feature is a service cycle related to the ProSe service and a service start time;

The first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal.

Through the method described above, the instruction message indicating to send the discovery message of the ProSe service is specifically described, and the instruction message indicating the sending of the discovery message of the ProSe service can be accurately identified, so that the sending of the discovery message of the ProSe service and the discovery of the ProSe service can be realized. Wide coverage.

In a possible design, the determining whether to send the discovery message of the ProSe service is specifically:

determining whether to send the discovery message of the ProSe service according to the detected trigger condition;

The trigger conditions include one or a combination of the following conditions:

The radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value;

The terminal receives a discovery message request sent by another terminal;

The target address corresponding to the discovery message request received by the terminal is in the target address list;

The terminal is in a state of receiving or sending the discovery message.

In a possible design, before determining whether to send the discovery message of the ProSe service, the method further includes:

If the first indication message is a discovery message indicating that the type of the discovery message is a ProSe service, determine to send the discovery message that the type of the discovery message is a ProSe service; or

If the first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal, it is determined that the type of the discovery message to be sent is a ProSe service discovery message.

In a possible design, the determining whether to send the discovery message of the ProSe service is specifically one or more combinations of the following:

When the trigger condition is that the radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal receives a discovery message request sent by other terminals, determine to send the discovery message of the ProSe service;

When the trigger condition is that the target address corresponding to the discovery message request received by the terminal is in the target address list, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal is in the state of receiving or sending the discovery message, it is determined to send the discovery message of the ProSe service.

In a possible design, before determining whether to send the discovery message of the ProSe service, it also includes:

processing the discovery message according to the type of the discovery message;

A fixed code rate of the processed discovery message is calculated, and the discovery message is sent according to the fixed code rate.

In a possible design, the processing the discovery message according to the type of the discovery message includes:

processing the discovery message whose type is the relay service through a first preset mode, wherein the first preset mode directly uses the discovery message;

The discovery message whose type is the ProSe service is processed through a second preset mode, wherein the second preset mode compresses the discovery message.

In a possible design, the sending the discovery message according to a fixed code rate includes:

Determine the transmission power corresponding to the fixed code rate according to the mapping relationship between the fixed code rate and the transmission power;

Sending the discovery message according to the sending power.

In a second aspect, the present disclosure also provides a method for processing a discovery message, the method including:

Parse the message type of the received discovery message;

Transmitting the discovery message corresponding to the message type to the non-access stratum.

Through the method described above, the message type of the discovery message sent by the terminal is analyzed, and different types of discovery messages are distinguished. Different discovery messages correspond to different processing methods, which avoids the mixing of different types of discovery messages, resulting in resource consumption. Efficient processing of discovery messages is achieved.

In a possible design, the transmitting the discovery message corresponding to the message type to the non-access stratum includes:

If the message type is a discovery message of a relay service, transmitting the discovery message meeting the first preset condition to the non-access stratum;

If the message type is a discovery message of a ProSe service, the discovery message meeting the second preset condition is transmitted to the non-access stratum.

In a possible design, the message type of the received discovery message is parsed according to at least one of the following methods:

judging the message type of the discovery message according to the physical resource pool, wherein the physical resource pool stores discovery messages of the same type;

judging the message type of the discovery message according to the type identifier in the direct link control indication of the terminal;

The message type of the discovery message is judged according to the logical channel identification code in the terminal.

In a possible design, the determining the message type of the discovery message according to the physical resource pool includes:

If the physical resource pool where the discovery message is stored is the discovery message of the relay service, then determine that the message type of the discovery message is the relay service type;

If the physical resource pool where the discovery message is stored stores the discovery message of the ProSe service, then it is determined that the message type of the discovery message is the ProSe service type.

In a possible design, the judging the message type of the discovery message according to the type identifier in the direct link control indication of the terminal includes:

Acquiring the type identifier of the discovery message;

If the value of the type identifier is the first set value, then determine that the discovery message is a discovery message of a ProSe service;

If the value of the type identifier is the second set value, it is determined that the discovery message is a discovery message of a relay service.

In a possible design, the judging the message type of the discovery message according to the logical channel identification code in the terminal includes:

Obtain the logical channel identification code corresponding to the discovery message, and match the logical channel identification code with the first logical channel identification code list and the second logical channel identification code list, wherein the first logical channel identification code list saves The logical channel identification code of the discovery message of the relay service, and the logical channel identification code of the discovery message of the ProSe service is stored in the second logical channel identification code list;

If the logical channel identification code of the discovery message is in the first logical channel identification code list, then determine that the discovery message is a discovery message of a relay service;

If the logical channel identification code of the discovery message is in the second logical channel identification code list, determine that the discovery message is a discovery message of the ProSe service.

In a possible design, the first preset condition is one or more combinations of the following conditions:

The discovery message of the relay service has a corresponding signal-to-noise ratio;

The discovery message of the relay service has a corresponding channel quality value, wherein the channel quality value represents the communication quality of the wireless channel.

In a possible design, the second preset condition is one or more combinations of the following conditions:

The message type is a discovery message of a ProSe service;

The discovery message is the same as the discovery message in the discovery message type list in the non-access stratum.

In a third aspect, the present disclosure provides an apparatus for sending a discovery message, and the apparatus includes:

A receiving module, specifically configured to receive a first indication message;

A determining module, specifically configured to determine whether to send a ProSe service discovery message according to the first indication message;

The first indication message includes one or a combination of the following:

In some embodiments, the determination module is specifically used for:

The terminal receives a discovery message request sent by another terminal;

The terminal is in a state of receiving or sending the discovery message.

In some embodiments, the determining module is also used for:

In some embodiments, when the determining module determines whether to send the discovery message of the ProSe service, it specifically performs one or more combinations of the following:

In some embodiments, the determining module is also used for:

In some embodiments, the determination module is specifically used for:

The discovery message whose type is the ProSe service is processed in a second preset mode, wherein the second preset mode compresses the discovery message.

In some embodiments, the determination module is specifically used for:

Sending the discovery message according to the sending power.

In a fourth aspect, the present disclosure also provides an apparatus for processing a discovery message, the apparatus including:

A parsing module, specifically for parsing the message type of the received discovery message;

The sending module is specifically configured to transmit the discovery message corresponding to the message type to the non-access stratum.

In some embodiments, the sending module is specifically used for:

In some embodiments, the parsing module is specifically configured to parse the message type of the received discovery message according to at least one of the following methods:

In some embodiments, the parsing module is specifically used for:

If the physical resource pool where the discovery message is located stores a discovery message of a relay service, then determining that the discovery message is a discovery message of a relay service;

If the physical resource pool where the discovery message is located stores the discovery message of the ProSe service, then it is determined that the discovery message is the discovery message of the ProSe service.

In some embodiments, the parsing module is specifically used for:

Acquiring the type identifier of the discovery message;

In some embodiments, the parsing module is specifically used for:

In some embodiments, the first preset condition is one or more combinations of the following conditions:

In some embodiments, the second preset condition is one or more combinations of the following conditions:

The message type is a discovery message of a ProSe service;

In a fifth aspect, the present disclosure provides a communication device, including a memory and a processor:

the memory stores computer instructions;

The processor is configured to read the computer program in the memory, and perform the following steps:

receiving a first indication message;

The first indication message includes one or a combination of the following:

In a possible design, the processor is specifically used for:

The terminal receives a discovery message request sent by another terminal;

The terminal is in a state of receiving or sending the discovery message.

In a possible design, the processor is also used for:

In a possible design, when the processor determines whether to send the discovery message of the ProSe service, it specifically performs one or more combinations of the following:

In a possible design, before determining whether to send the discovery message of the ProSe service, the processor is further configured to:

In a possible design, the processor is specifically used for:

Sending the discovery message according to the sending power.

In a sixth aspect, the present disclosure provides a communication device, including a memory and a processor:

the memory stores computer instructions;

Parse the message type of the received discovery message; transmit the discovery message corresponding to the message type to the non-access stratum.

In a possible design, the processor is specifically used for:

Acquiring the type identifier of the discovery message;

If the value of the type identifier is the first set value, the discovery message is a discovery message of the ProSe service;

If the value of the type identifier is the second set value, the discovery message is a discovery message of a relay service.

In a possible design, the processor is specifically used for:

The message type is a discovery message of a ProSe service;

In a seventh aspect, a computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer perform the steps of the above-mentioned method for sending a discovery message and A method step for processing a discovery message.

In an eighth aspect, a computer program product, when invoked by a computer, causes the computer to execute the steps of the above method for sending a discovery message and the method for processing a discovery message.

Description of drawings

FIG. 1 is a schematic diagram of cellular network communication provided by the present disclosure;

FIG. 2 is a schematic diagram of communication between terminals provided by the present disclosure;

FIG. 3 is another schematic diagram of terminal-to-terminal communication provided by the present disclosure;

FIG. 4 is a flow chart of steps in a method for sending a discovery message provided by the present disclosure;

FIG. 5 is a schematic structural diagram of a device for sending a discovery message provided by the present disclosure;

FIG. 6 is a flow chart of steps in a method for processing a discovery message provided by the present disclosure;

FIG. 7 is a schematic structural diagram of a discovery message processing device provided by the present disclosure;

FIG. 8 is a schematic structural diagram of a communication device provided by the present disclosure;

Fig. 9 is a schematic structural diagram of a communication device provided by the present disclosure.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, general Universal Mobile Telecommunication System (UMTS), New Radio Access Technology (NR), 5G, etc. In an optional implementation manner, the sending device described below in the embodiment of the present invention may be an access network device, and the receiving device may be a terminal device; in another optional implementation manner, the following in the embodiment of the present invention The sending device can be a terminal device, and the receiving device can be a terminal device. Fig. 1 illustrates a communication system architecture, and the communication system includes access network equipment and terminal equipment.

Before describing the specific embodiments of the present invention, the technical concept involved in the present invention will be described below.

1) Terminal equipment, also known as terminal, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc., is a device that provides voice and/or data to users Connectivity devices, for example, handheld devices with wireless connectivity, vehicle-mounted devices, etc. At present, examples of some terminals are: mobile terminal equipment, such as mobile phones (or called "cellular" phones) and computers with mobile terminal equipment, such as portable, pocket, handheld, computer built-in or vehicle-mounted Mobile devices that exchange speech and/or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants, PDA) and other devices. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in the embodiments of the present disclosure.

The network device involved in the embodiments of the present disclosure may be a base station, and the base station may include multiple cells. Depending on specific application scenarios, a base station may also be called an access point, or may refer to a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or other names. The network device can be used to convert received over-the-air frames to and from Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet protocol communication network. Network devices may also coordinate attribute management for the air interface. For example, the network device involved in the embodiment of the present disclosure may be a network device (base transceiver station, BTS) in a global system for mobile communications (GSM) or a code division multiple access (code division multiple access, CDMA) ), or a network device (NodeB) in wide-band code division multiple access (WCDMA), or an evolved network device in a long term evolution (LTE) system (evolutional node B, eNB or e-NodeB), the 5G base station in the 5G network architecture (next generation system), or the home evolution base station (home evolved node B, HeNB), relay node (relay node), home base station ( femto), pico base station (pico), etc., are not limited in this embodiment of the present disclosure.

FIG. 1 is a schematic diagram of cellular network communication provided by the present disclosure. The wireless communication system is composed of a base station, several terminal devices and a CN core network. The wireless communication between the terminal UE1 and the terminal UE2 is realized through the base station. When the terminal UE1 needs to send a signal to the terminal UE2, the terminal UE1 transmits the signal to the base station through the Uu interface, and the base station transmits the signal to the terminal UE2 through the Uu interface, thereby realizing the terminal Signal transmission between UE1 and terminal UE2.

As shown in Figure 2, it is a schematic diagram of communication between terminals provided by the present disclosure. The wireless communication system consists of a base station, several terminals, and a CN core network. The signal transmission between the terminal and the base station is performed through the Uu interface. The wireless communication is realized through the direct communication link, that is, the communication is realized through the Sidelink link. The wireless interface corresponding to the direct communication link is called the Sidelink interface or the PC5 interface. When the terminal UE1 and the terminal UE2 need to communicate wirelessly, the terminal UE1 passes The Sidelink interface or the PC5 interface transmits signals to the terminal UE2. After receiving the signals, the terminal UE2 can transmit signals back to the terminal UE1 through the Sidelink interface or the PC5 interface, thereby realizing wireless communication between terminals.

Figure 3 is another schematic diagram of communication between terminals provided by the present disclosure. Based on the wireless communication between terminals described above, in order to expand the network coverage area, the problem that needs to be solved is when When the distance between terminals is long, wireless communication between two terminals is impossible. Therefore, a relay terminal is introduced to make the relay terminal a signal transfer station for wireless communication between two terminals. Two long-distance When terminals perform wireless communication, two remote terminals are called remote terminals. One of the remote terminals first finds the surrounding terminals, and then determines that one terminal is a relay terminal, and transmits signals to the relay terminal through the Sidelink interface or PC5 interface. The relay terminal receives the signal of the remote terminal and forwards the signal to another remote terminal through the Sidelink interface or the PC5 interface, thereby realizing wireless communication between two remote terminals.

At present, due to the development of 5G network technology, 5G network coverage has been realized in most areas. When a terminal performs long-distance wireless communication with the terminal, it is necessary to select a terminal between the two terminals as a relay terminal, and through the relay terminal The forwarding signal realizes the signal transmission between two remote terminals. When a terminal needs to perform signal transmission with a remote terminal, it needs to discover the surrounding terminals. There are two types of surrounding terminals, one is a relay terminal, and the other is a relay terminal. Terminals with ProSe services, ProSe services are called proximity services (Proximity Service, ProSe), which means that user data can be directly transmitted between terminals without going through the network. What needs to be explained here is that in the 5G network scenario, the ProSe service is specifically a 5G ProSe service, and the ProSe service is uniformly used for description below.

In the field of wireless communication, the AS layer receives or sends signals on the air interface when the terminal performs wireless communication. Since the AS layer only records the detailed information of the relay terminal, the terminal can only send the discovery message of the relay service, but cannot send Discovery messages with ProSe services.

In order to solve the above problems, the embodiments of the present disclosure provide a method for sending a discovery message, so as to solve the problem that the terminal cannot send the discovery message related to the ProSe service in the above scenario. Wherein, the method and the device described in the embodiments of the present disclosure are based on the same technical concept. Since the principles of the problems solved by the method and the device are similar, the embodiments of the device and the method can be referred to each other, and the repetitions will not be repeated.

Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

Embodiment one

Referring to Figure 4, the present disclosure provides a method for sending a discovery message, which can solve the problem that the discovery message related to the ProSe service cannot be sent. The implementation process of the method is as follows:

Step S1: Receive a first indication message.

In order to trigger the terminal to send a discovery message, before the terminal sends the discovery message, the terminal needs to receive a first indication message from the non-access stratum, and judge whether to trigger the sending of the discovery message according to the first indication message. The non-access stratum includes mobility management, Call control, session management, and identity management.

In this embodiment of the disclosure, the first indication message is a combination of one or more of the following messages:

1. The first indication message is a discovery message indicating to send the ProSe service;

The terminal parses out the content of the first indication message, and judges according to the content whether to indicate to send the discovery message of the ProSe service or to indicate to send the discovery message of the relay service.

2. The first indication message is a discovery message indicating that the type of the discovery message is a ProSe service;

In the embodiment of the present disclosure, since the discovery message indicating that the type of the discovery message is a ProSe service is described, the first indication information is the discovery message indicating that the type of the discovery message is a ProSe service.

3. The first indication message is the service characteristic of the discovery message indicating the ProSe service, wherein the service characteristic is the service period related to the periodic service and the service start time;

After parsing the obtained first indication message, various types of terminals around can be identified through the discovery message of the ProSe service, for example: a terminal of the relay service, a terminal of the ProSe service, etc. When characteristics such as various types of terminals are determined, it can be determined that the indication message is the service characteristic of the discovery message indicating the ProSe service.

4. The first indication message indicates that the target address corresponding to the discovery message of the ProSe service is the ProSe service terminal.

After receiving the first indication message, it is necessary to determine whether the terminal of the target address corresponding to the discovery message of the ProSe service is a ProSe service terminal. Since the mapping relationship between the type indication message of the discovery message and the ProSe service terminal is stored in the terminal, it can Determine whether the target address corresponding to the discovery message of the ProSe service is a ProSe service terminal according to lookup table 1, and table 1 is as follows:

Table 1

The above table 1 records the relationship between the type indication message and the target address. The target address includes the target address of the ProSe service terminal and the target address of the relay service. The target address corresponding to the ProSe service type is the target address of the ProSe service terminal. The relay service The destination address corresponding to the type is the destination address of the relay service terminal.

The terminal parses the received first indication message, parses out the correspondence between the type indication message and the target address, and matches the correspondence with Table 1. When the correspondence between the type indication message and the target address is matched, the first indication message can be determined. Indicates the type of the discovery message that needs to be sent in the message. When the corresponding relationship between the discovery message of the ProSe service and the target address is matched, it indicates that the message indicates that the discovery message of the ProSe service is sent. When the message of the relay service is matched When the correspondence between the message and the target address is discovered, it indicates that the indication message indicates the discovery message for sending the relay service. For the indication message of the discovery message of the relay service, it has been described in detail in the existing solution, and will not be repeated here. In the embodiment of the present disclosure, the discovery message indication message of the ProSe service is described in detail.

Further, the above indication message can be a single type, or can be a combination of multiple types, such as:

Case 1: the first indication message is a discovery message indicating to send a ProSe service, and indicates that the type of the discovery message is a discovery message of a ProSe service;

Case 2: The first indication message is a discovery message indicating to send the ProSe service, and indicates the service characteristics of the discovery message of the ProSe service;

Situation 3: The first indication message is a discovery message indicating to send a ProSe service, a discovery message indicating that the type of the discovery message is a ProSe service, and a mapping relationship between a type indication message and a target address of the discovery message indicating the ProSe service;

Situation 4: The first indication message is the mapping relationship between the discovery message indicating the sending of the ProSe service, the service characteristic of the discovery message indicating the ProSe service, and the type indication message of the discovery message indicating the ProSe service and the target address;

Situation 5: The first indication is to send a discovery message of a ProSe service, a discovery message indicating that the type of the discovery message is a ProSe service, a service feature of the discovery message indicating a ProSe service, and a mapping between a type indication message and a target address of the discovery message indicating a ProSe service relation.

In the embodiment of the present disclosure, the above five possible situations are listed for various combinations of the first indication message, since the first indication message can be one message, or any combination of two pieces of information, or any three pieces of information The combination of information may also be a combination of four pieces of information, which will not be listed one by one here.

Through the above method, the first indication message for instructing the terminal to send the discovery message of the ProSe service is described in detail. Through the content of the description, it can be confirmed that the first indication message is the discovery message for instructing the terminal to send the ProSe service, and the ProSe service is realized. The identification of the discovery message indicates the message.

After obtaining the first indication message, it is necessary to determine whether the type of the discovery message to be sent is a discovery message of the ProSe service. There are three ways to determine, and the specific determination process is as follows:

Mode 1: judging whether the indication message of the discovery message is a discovery message of the ProSe service;

If the type of the discovery message indicated by the first indication message is a discovery message of a ProSe service, then the first indication message is a discovery message indicating to send a ProSe service, if the type of the discovery message indicated by the first indication message is a discovery message of a non-ProSe service message, the first indication message is a discovery message indicating to send the relay service.

Method 2: judging the mapping relationship between the target address corresponding to the discovery message and the ProSe service terminal;

Obtain the target address corresponding to the type indication message of the discovery message, determine whether the terminal corresponding to the target address is a terminal with a ProSe service, if so, then determine that the discovery message is a discovery message of the ProSe service, if not, ignore the indication message.

Mode 3: Mode 3 is a combination of Mode 1 and Mode 2. Only Mode 1 and Mode 2 must be satisfied at the same time to determine that the discovery message is the discovery message of the ProSe service.

Through the above description method, the type of the discovery message can be judged by any one of the methods 1, 2 and 3, so as to accurately determine whether to send the discovery message of the ProSe service according to the type of the discovery message, and improve the identification of the ProSe service. Discover the accuracy of the message.

Step S2: Determine whether to send a ProSe service discovery message according to the first indication message.

After receiving the first indication message used to instruct the terminal to send the discovery message of the ProSe service, the first indication message is one of the combination methods described above, and when the first indication message meets the conditions, according to the received first indication message, The trigger condition is obtained, and it is determined whether to send the discovery message of the ProSe service according to the trigger condition.

After the trigger condition is obtained, the trigger condition needs to be judged. When the trigger condition is one or a combination of the following conditions, it is determined to send the discovery message of the ProSe service. The trigger condition includes one or a combination of the following conditions:

Condition 1: The wireless resource occupancy rate of the direct communication link of the terminal exceeds a preset value;

Before sending the discovery message, in order to detect whether there are enough terminals around the terminal, it is necessary to detect the ratio of the number of direct communication links used by the terminal to the number of direct communication links owned by the terminal, and calculate the radio frequency of the direct communication links of the terminal. Resource occupancy rate, when the wireless resource occupancy rate of the direct communication link exceeds the preset value, the terminal can determine that there are a sufficient number of other terminals around, and can send discovery messages to other terminals around, when the wireless resource occupancy rate of the direct communication link If the resource occupancy rate is less than the preset value, the terminal will ignore the indication message for sending the discovery message.

In the embodiment of the present disclosure, the preset value varies according to actual needs, and is not a fixed value, therefore, too much description is omitted here.

For example: when the wireless resource occupancy rate of the direct communication link of the terminal is 46%, the preset value is 30%, and if 46% is greater than 30%, it can be determined that there are a sufficient number of other terminals around;

When the radio resource occupancy rate of the direct communication link of the terminal is 35%, the preset value is 40%, and 35% is less than 40%, the terminal ignores the indication message for sending the discovery message.

Condition 2: The terminal receives a discovery message request sent by other terminals;

In order to discover other terminals around the terminal, there is another way that other terminals around the terminal actively send discovery message requests to the terminal. After the terminal receives the discovery message requests sent by other terminals, the terminal can discover other terminals around the terminal through the received discovery message request. The terminal, so that the terminal determines the number of other terminals around it according to the number of received discovery message requests.

Condition 3: The target address corresponding to the discovery message request received by the terminal is in the target address list;

After the terminal receives the discovery message request, the terminal needs to parse out the corresponding target address according to the received discovery message request. The discovery message request contains the information of the target address, and the target address is the target address of the terminal corresponding to the discovery message of the ProSe service or the ProSe The destination address of the business.

The terminal obtains Table 2 through the communication protocol. Table 2 shows the correspondence between the discovery message request and the parsed target address. Table 2 is as follows:

发现消息请求discovery message request	目标地址target address
发现消息请求1Discovery message request 1	0xFFAF0xFFAF
发现消息请求2Discovery message request 2	0xFFFB0xFFFB
发现消息请求3Discovery message request 3	0xFFAB0xFFAB
...... …	...... …

Table 2

In the embodiment of the present disclosure, the terminal can resolve the target address through the discovery message request. After obtaining the target address of the discovery message request, it can save the corresponding relationship between the discovery message request and the target address. When the terminal receives the discovery message request again , the target address corresponding to the discovery message request can be acquired through Table 2.

目标地址名单target address list
0xFFFF0xFFFF
0xFAB80xFAB8
...... …

table 3

In the embodiment of the present disclosure, Table 3 is the target address list. After obtaining the target address corresponding to the discovery message request, the target address is matched with the target address list of the terminal. If a consistent target address is matched, it indicates that the target address In the target address list of the terminal, the terminal regards the terminal sending the discovery message request as the terminal existing around, and if no consistent target address is matched, the terminal ignores the terminal sending the discovery message request.

Through the above method, the two-way identification between the terminal and the terminal sending the discovery message request is achieved. The surrounding terminals need to send the discovery message request to the terminal, and the target address list of the terminal must have the target address resolved by the discovery message request. When sending the discovery message request The target address resolved by the message request is not in the target address list, even if the terminal sending the discovery message request is nearby, the terminal will ignore the terminal.

Condition 4: The terminal is in the state of receiving or sending a discovery message;

When the terminal is in the state of sending or receiving discovery messages, it indicates that the terminal is in the service period of the non-access stratum, and the non-access stratum can process the discovery messages sent or received by the terminal during the service period, so the terminal can pass the indication message Send a discovery message.

It should be noted here that, in the implementation of the present disclosure, any two of the four trigger conditions can be combined, or any three trigger conditions can be combined, or four trigger conditions can be combined. The above only exemplifies five As for the way of combination, other combination ways can refer to any one of the above-mentioned situations 1 to 5, and there are no too many examples for other combination ways here.

If the trigger condition satisfies the conditions described above, the discovery message of the ProSe service can be sent. Before sending the discovery message of the ProSe service, the type of the discovery message has been obtained according to the indication information, so the discovery message needs to be processed. When the type is the discovery message of the ProSe service, the discovery message of the ProSe service is compressed. Of course, when the type of the discovery message is the discovery message of the relay service, no processing is performed on the discovery message.

After processing the discovery message of the ProSe service, calculate the fixed code rate of the discovery message, and after obtaining the fixed code rate of the discovery message, send the discovery message according to the mapping relationship between the fixed code rate and the transmission power. The fixed code rate is related to the transmission power. Inversely proportional relationship, when the fixed code rate is larger, the transmission power is smaller. In the communication protocol, the mapping relationship between the fixed code rate and the transmission power is specified.

In a possible design, before sending the discovery message, the sending frequency may also be determined according to the system information (SIB) broadcast by the base station, and the discovery message is sent according to the determined sending frequency. In the embodiment of the present disclosure, since the SIB and The relationship between frequencies is well known to those skilled in the art, so it will not be described too much here.

Through the method described above, there are detailed judgment conditions for the discovery message of the ProSe service. When the indication message is a discovery message indicating the sending of the ProSe service, the trigger condition is detected according to the indication message, and the ProSe service is sent when the trigger condition meets the requirements. The discovery message of the ProSe service is realized, so that the terminal can accurately judge and send the discovery message of the ProSe service, and then realize the wide coverage of the ProSe service.

Embodiment two

In Embodiment 1, the processing process of the discovery message of the ProSe service by the terminal is described. For the receiving end, the discovery message will also be processed accordingly. Referring to FIG. 5 for details, the embodiment of the present disclosure also provides a The processing method of the discovery message, after the discovery message is sent from the sender to the receiver, the receiver will process the discovery message, the specific implementation process is as follows:

Step S21: Parse the message type of the received discovery message.

After receiving the discovery message, the receiving end needs to judge the type of the discovery message. The type judgment of the discovery message can be one of the following methods or a combination:

The first way: judge according to the physical resource pool where the discovery message is located.

Specifically, the physical resource pool is used to receive the discovery message according to the type of the discovery message, that is, after the discovery message is received by the physical resource pool, if the physical resource pool that receives the discovery message stores the discovery message of the relay service, then If it is determined that the discovery message is a discovery message of a relay service, the discovery message is a discovery message of a relay service; if the discovery message of a ProSe service is stored in the physical resource pool receiving the discovery message, then it is determined that the discovery message is a ProSe service. A discovery message of a service, where the discovery message is a discovery message of a ProSe service.

The second manner: judging the message type of the discovery message according to the type identifier in the direct link control indication of the terminal.

Specifically, after receiving the discovery message, obtain the value of the type identifier corresponding to the discovery message. The type identifier in the discovery message is an inherent characteristic of the discovery message. Therefore, the type identifier can be obtained in the discovery message. When the type identifier is the first When the value is set, the discovery message is the discovery message of the ProSe service; when the type identifier is the second set value, the discovery message is the discovery message of the relay service.

For example, if the value of the type identifier is 1, it indicates that the discovery message is a discovery message of a ProSe service, and if the value of the type identifier is 0, it indicates that the discovery message is a discovery message of a relay service.

In addition, when the value of the type identifier is an integer greater than 1, it indicates that the discovery message is a subtype of the ProSe service. In the embodiment of the present disclosure, the ProSe service includes at least one kind of service.

The third way: judging the message type of the discovery message according to the logical channel identification code.

Specifically, after receiving the discovery message, the logical channel identification code of the discovery message is acquired, and the acquired logical channel identification code of the discovery message is matched with the first logical channel identification code list and the second logical channel identification code list, and according to the matching Find the list of consistent logical channel identification codes to determine the type of the discovery message. It should be noted here that the logical channel identification code of the discovery message of the relay service is stored in the first logical channel identification code list, and the logical channel identification code of the discovery message of the ProSe service The channel identification codes are stored in the second logical channel identification code list.

If the matching logical channel identification code is in the first logical channel identification code list, the discovery message is a discovery message of the relay service; if the matching logical channel identification code is in the second logical channel identification code list, Then the discovery message is a discovery message of the ProSe service.

Through the method described above, the type of the discovery message sent by the terminal to the receiver can be determined in any of the three ways, and the type of the received discovery message can be accurately classified, avoiding the need to spend a lot of time when processing the discovery message resources, facilitating centralized processing of discovery messages of the same type.

Step S22: Transmitting the discovery message corresponding to the message type to the non-access stratum.

When the type of the discovery message is the discovery message of the relay service, the discovery message of the relay terminal that meets the first preset condition needs to be sent to the non-access stratum. The first preset condition can be one of the following two conditions A condition:

Condition 1: The discovery message is a discovery message of a relay service with a signal-to-noise ratio, and the larger the signal-to-noise ratio, the smaller the interference received during signal transmission.

After determining that the discovery message is a discovery message of a relay service with a signal-to-noise ratio, the discovery message is sent to the non-access stratum.

Condition 2: The discovery message is a discovery message of a relay service with a channel quality value, and the channel quality value represents the communication quality of the wireless channel.

After determining that the discovery message is the discovery message of the relay service with the channel quality value, the discovery message of the relay service and the channel quality value corresponding to the discovery message of the relay service are sent to the non-access stratum.

Through the method described above, after confirming that the type of the discovery message is the discovery message of the relay service, the discovery message of the relay service may be sent to the non-access stratum by using the above-described condition 1 or condition 2.

After determining that the type of the discovery message is a discovery message of a ProSe service, it is necessary to send a discovery message that meets the second preset condition to the non-access stratum, and the second preset condition may be the following condition 1 and/or condition 2:

Condition 1: The type of the discovery message is a discovery message of the ProSe service.

After determining that the type of the discovery message is the discovery message of the ProSe service, the discovery message of the ProSe service is directly sent to the non-access stratum.

Condition 2: The discovery message is the same as the discovery message in the discovery message type list in the NAS.

After determining that the type of the discovery message is the discovery message of the ProSe service, match the discovery message of the ProSe service with the discovery message type list in the AS layer, and upload the same discovery message as the discovery message in the discovery message type list to the non-access layer.

Through the method described above, after confirming that the type of the discovery message is the discovery message of the ProSe service, the discovery message of the ProSe service described above that meets the condition 1 and/or condition 2 can be uploaded to the non-access stratum.

Based on the method described above, the receiving end can accurately identify the discovery message of the relay service and the discovery message of the ProSe service due to the supplement of the relevant information of the ProSe service, and thus perform different processing according to different types of discovery messages.

Embodiment three

Corresponding to the method provided in Embodiment 1, an embodiment of the present disclosure also provides a device for sending a discovery message. The device for sending a discovery message is used to realize the function of a method for sending a discovery message. Referring to FIG. 6 , the Said devices include:

The receiving module 601 is specifically configured to receive a first indication message;

The determining module 602 is specifically configured to determine whether to send a discovery message of the ProSe service according to the first indication message;

The first indication message includes one or a combination of the following:

In a possible design, the determining module 602 is specifically configured to:

The terminal receives a discovery message request sent by another terminal;

The terminal is in a state of receiving or sending the discovery message.

In a possible design, the determining module 602 is also configured to:

In a possible design, when the determining module 602 determines whether to send the discovery message of the ProSe service, it specifically performs one or more combinations of the following:

In a possible design, the determining module 602 is also configured to:

In a possible design, the determining module 602 is specifically configured to:

Sending the discovery message according to the sending power.

Embodiment Four

Corresponding to the method provided in Embodiment 2, an embodiment of the present disclosure also provides a device for processing a discovery message. The device for processing a discovery message is used to realize the function of a method for processing a discovery message. Referring to FIG. 7 , the Said devices include:

Parsing module 701, specifically for parsing the message type of the received discovery message;

The sending module 702 is specifically configured to transmit the discovery message corresponding to the message type to the non-access stratum.

In a possible design, the sending module 702 is specifically configured to:

In a possible design, the parsing module 701 is specifically configured to parse the message type of the received discovery message according to at least one of the following methods:

In a possible design, the parsing module 701 is specifically configured to:

Acquiring the type identifier of the discovery message;

In a possible design, the parsing module 701 is specifically used to:

The message type is a discovery message of a ProSe service;

When the discovery message is the same as the discovery message in the discovery message type list in the non-access stratum.

Embodiment five

An embodiment of the present disclosure also provides a communication device. As shown in FIG. 8 , the communication device includes: a processor 801 , a memory 802 , and a bus interface 803 .

The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 can store data used by the processor 803 when performing operations.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 802 are linked together. The bus architecture can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 802 can store data used by the processor 801 when performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 801 or implemented by the processor 801 . In the implementation process, each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 801 or instructions in the form of software. The processor 801 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the information processing flow in combination with its hardware.

Specifically, the processor 801 is configured to read the computer instructions in the memory 802 and execute the method for sending a discovery message in the embodiment of the present disclosure, and specifically perform the following steps:

Receiving the first indication message and determining whether to send the discovery message of the ProSe service according to the first indication message.

The first indication message includes one or a combination of the following:

In a possible design, the processor 801 is specifically configured to:

Determine whether to send the discovery message of the ProSe service according to the detected trigger condition, where the trigger condition includes one or a combination of the following conditions: the radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value, and the terminal Upon receiving a discovery message request sent by another terminal, the target address corresponding to the discovery message request received by the terminal is in the target address list, and the terminal is in a state of receiving or sending the discovery message.

In a possible design, the processor 801 is also configured to:

In a possible design, the processor 801 is specifically configured to:

In a possible design, the processor 801 is also configured to:

In a possible design, the processor 801 is specifically configured to:

Sending the discovery message according to the sending power.

Embodiment six

An embodiment of the present disclosure also provides a communication device. As shown in FIG. 9 , the communication device includes: a processor 901 , a memory 902 and a bus interface 903 .

The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 can store data used by the processor 903 when performing operations.

The bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 901 and various circuits of the memory represented by the memory 902 are linked together. The bus architecture can also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. The processor 901 is responsible for managing the bus architecture and general processing, and the memory 902 can store data used by the processor 901 when performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 901 or implemented by the processor 901 . In the implementation process, each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 901 or an instruction in the form of software. The processor 901 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902, and completes the steps of the information processing flow in combination with its hardware.

Specifically, the processor 901 is configured to read the computer instructions in the memory 902 and execute the method for processing the discovery message in the embodiment of the present disclosure, and specifically execute the following steps:

Parse the message type of the received discovery message;

In a possible design, the processor 901 is specifically configured to:

In a possible design, the processor 901 parses the message type of the received discovery message according to at least one of the following methods:

In a possible design, the processor 901 is specifically configured to:

Acquiring the type identifier of the discovery message;

In a possible design, the processor 901 is specifically configured to:

The message type is a discovery message of a ProSe service;

It should be noted here that the above-mentioned communication device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect. The same parts and beneficial effects are described in detail.

An embodiment of the present disclosure further provides a computer program product, which, when invoked by a computer, causes the computer to execute the method for sending a discovery message and the method for processing a discovery message in the foregoing embodiments.

Those skilled in the art should understand that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present disclosure. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies thereof, the present disclosure also intends to include these modifications and variations.

Claims

A method for sending a discovery message, comprising:

receiving a first indication message;

Determine whether to send a ProSe service discovery message according to the first indication message;

The first indication message includes one or a combination of the following:

The first indication message is a discovery message indicating to send a ProSe service;

The first indication message is a discovery message indicating that the type of the discovery message is a ProSe service;

The first indication message is a service feature indicating a discovery message of a ProSe service, wherein the service feature is a service cycle related to the ProSe service and a service start time;

The first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal.
The method according to claim 1, wherein the determining whether to send the discovery message of the ProSe service is specifically:

determining whether to send the discovery message of the ProSe service according to the detected trigger condition;

The trigger conditions include one or a combination of the following conditions:

The radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value;

The terminal receives a discovery message request sent by another terminal;

The target address corresponding to the discovery message request received by the terminal is in the target address list;

The terminal is in a state of receiving or sending the discovery message.
The method according to claim 1, wherein before determining whether to send the discovery message of the ProSe service, the method further comprises:

If the first indication message is a discovery message indicating that the type of the discovery message is a ProSe service, determine to send the discovery message that the type of the discovery message is a ProSe service; or

If the first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal, it is determined that the type of the discovery message to be sent is a ProSe service discovery message.
The method according to claim 1, wherein said determining whether to send the discovery message of the ProSe service is specifically one or more of the following combinations:

When the trigger condition is that the radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal receives a discovery message request sent by other terminals, determine to send the discovery message of the ProSe service;

When the trigger condition is that the target address corresponding to the discovery message request received by the terminal is in the target address list, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal is in the state of receiving or sending the discovery message, it is determined to send the discovery message of the ProSe service.
The method according to claim 1, further comprising: before determining whether to send the discovery message of the ProSe service:

processing the discovery message according to the type of the discovery message;

A fixed code rate of the processed discovery message is calculated, and the discovery message is sent according to the fixed code rate.
The method according to claim 5, wherein the processing the discovery message according to the type of the discovery message comprises:

processing the discovery message whose type is the relay service through a first preset mode, wherein the first preset mode directly uses the discovery message;

The discovery message whose type is the ProSe service is processed in a second preset mode, wherein the second preset mode compresses the discovery message.
The method according to claim 5, wherein the sending the discovery message according to a fixed code rate comprises:

Determine the transmission power corresponding to the fixed code rate according to the mapping relationship between the fixed code rate and the transmission power;

Sending the discovery message according to the sending power.
A method for processing discovery messages, comprising:

Parse the message type of the received discovery message;

Transmitting the discovery message corresponding to the message type to the non-access stratum.
The method according to claim 8, wherein the transmitting the discovery message corresponding to the message type to the non-access stratum comprises:

If the message type is a discovery message of a relay service, transmitting the discovery message meeting the first preset condition to the non-access stratum;

If the message type is a discovery message of a ProSe service, the discovery message meeting the second preset condition is transmitted to the non-access stratum.
The method according to claim 8, wherein the message type of the received discovery message is parsed according to at least one of the following methods:

judging the message type of the discovery message according to the physical resource pool, wherein the physical resource pool stores discovery messages of the same type;

judging the message type of the discovery message according to the type identifier in the direct link control indication of the terminal;

The message type of the discovery message is judged according to the logical channel identification code in the terminal.
The method according to claim 10, wherein the determining the message type of the discovery message according to the physical resource pool comprises:

If the physical resource pool where the discovery message is located stores a discovery message of a relay service, then determining that the discovery message is a discovery message of a relay service;

If the physical resource pool where the discovery message is located stores the discovery message of the ProSe service, then it is determined that the discovery message is the discovery message of the ProSe service.
The method according to claim 10, wherein the determining the message type of the discovery message according to the type identifier in the direct link control indication of the terminal comprises:

Acquiring the type identifier of the discovery message;

If the value of the type identifier is the first set value, then determine that the discovery message is a discovery message of a ProSe service;

If the value of the type identifier is the second set value, it is determined that the discovery message is a discovery message of a relay service.
The method according to claim 10, wherein the judging the message type of the discovery message according to the logical channel identification code in the terminal comprises:

Obtain the logical channel identification code corresponding to the discovery message, and match the logical channel identification code with the first logical channel identification code list and the second logical channel identification code list, wherein the first logical channel identification code list saves The logical channel identification code of the discovery message of the relay service, and the logical channel identification code of the discovery message of the ProSe service is stored in the second logical channel identification code list;

If the logical channel identification code of the discovery message is in the first logical channel identification code list, then determine that the discovery message is a discovery message of a relay service;

If the logical channel identification code of the discovery message is in the second logical channel identification code list, determine that the discovery message is a discovery message of the ProSe service.
The method according to claim 9, wherein the first preset condition is one or more combinations of the following conditions:

The discovery message of the relay service has a corresponding signal-to-noise ratio;

The discovery message of the relay service has a corresponding channel quality value, wherein the channel quality value represents the communication quality of the wireless channel.
The method according to claim 9, wherein the second preset condition is one or more combinations of the following conditions:

The message type is a discovery message of a ProSe service;

The discovery message is the same as the discovery message in the discovery message type list in the non-access stratum.
A device for sending a discovery message, characterized in that it includes:

A receiving module, specifically configured to receive a first indication message;

A determining module, specifically configured to determine whether to send a ProSe service discovery message according to the first indication message;

The first indication message includes one or a combination of the following:

The first indication message is a discovery message indicating to send a ProSe service;

The first indication message is a discovery message indicating that the type of the discovery message is a ProSe service;

The first indication message is to indicate the service feature of the discovery message of the ProSe service, wherein the service feature is the relevant service cycle and service start time of the ProSe service;

The first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal.
The device according to claim 16, wherein the determining module is specifically configured to:

determining whether to send the discovery message of the ProSe service according to the detected trigger condition;

The trigger conditions include one or a combination of the following conditions:

The radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value;

The terminal receives a discovery message request sent by another terminal;

The target address corresponding to the discovery message request received by the terminal is in the target address list;

The terminal is in a state of receiving or sending the discovery message.
The device according to claim 16, wherein the determining module is further configured to:

If the first indication message is a discovery message indicating that the type of the discovery message is a ProSe service, determine to send the discovery message that the type of the discovery message is a ProSe service; or

If the first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal, it is determined that the type of the discovery message to be sent is a ProSe service discovery message.
The device according to claim 16, wherein when the determining module determines whether to send the discovery message of the ProSe service, it specifically performs one or more of the following combinations:

When the trigger condition is that the radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal receives a discovery message request sent by other terminals, determine to send the discovery message of the ProSe service;

When the trigger condition is that the target address corresponding to the discovery message request received by the terminal is in the target address list, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal is in the state of receiving or sending the discovery message, it is determined to send the discovery message of the ProSe service.
The device according to claim 16, wherein the determining module is further configured to:

processing the discovery message according to the type of the discovery message;

A fixed code rate of the processed discovery message is calculated, and the discovery message is sent according to the fixed code rate.
The device according to claim 20, wherein the determination module is specifically used for:

processing the discovery message whose type is the relay service through a first preset mode, wherein the first preset mode directly uses the discovery message;

The discovery message whose type is the ProSe service is processed in a second preset mode, wherein the second preset mode compresses the discovery message.
The device according to claim 20, wherein the determination module is specifically used for:

Determine the transmission power corresponding to the fixed code rate according to the mapping relationship between the fixed code rate and the transmission power;

Sending the discovery message according to the sending power.
A device for processing a discovery message, characterized in that it includes:

A parsing module, specifically for parsing the message type of the received discovery message;

The sending module is specifically configured to transmit the discovery message corresponding to the message type to the non-access stratum.
The device according to claim 23, wherein the sending module is specifically used for:

If the message type is a discovery message of a relay service, transmitting the discovery message meeting the first preset condition to the non-access stratum;

If the message type is a discovery message of a ProSe service, the discovery message meeting the second preset condition is transmitted to the non-access stratum.
The device according to claim 23, wherein the parsing module is specifically configured to parse the message type of the received discovery message according to at least one of the following methods:

judging the message type of the discovery message according to the physical resource pool, wherein the physical resource pool stores discovery messages of the same type;

judging the message type of the discovery message according to the type identifier in the direct link control indication of the terminal;

The message type of the discovery message is judged according to the logical channel identification code in the terminal.
The device according to claim 25, wherein the parsing module is specifically used for:

If the physical resource pool where the discovery message is located stores a discovery message of a relay service, then determining that the discovery message is a discovery message of a relay service;

If the physical resource pool where the discovery message is located stores the discovery message of the ProSe service, then it is determined that the discovery message is the discovery message of the ProSe service.
The device according to claim 25, wherein the parsing module is specifically used for:

Acquiring the type identifier of the discovery message;

If the value of the type identifier is the first set value, then determine that the discovery message is a discovery message of a ProSe service;

If the value of the type identifier is the second set value, it is determined that the discovery message is a discovery message of a relay service.
The device according to claim 25, wherein the parsing module is specifically used for:

Obtain the logical channel identification code corresponding to the discovery message, and match the logical channel identification code with the first logical channel identification code list and the second logical channel identification code list, wherein the first logical channel identification code list saves The logical channel identification code of the discovery message of the relay service, and the logical channel identification code of the discovery message of the ProSe service is stored in the second logical channel identification code list;

If the logical channel identification code of the discovery message is in the first logical channel identification code list, then determine that the discovery message is a discovery message of a relay service;

If the logical channel identification code of the discovery message is in the second logical channel identification code list, determine that the discovery message is a discovery message of the ProSe service.
The device according to claim 24, wherein the first preset condition is one or more combinations of the following conditions:

The discovery message of the relay service has a corresponding signal-to-noise ratio;

The discovery message of the relay service has a corresponding channel quality value, wherein the channel quality value represents the communication quality of the wireless channel.
The device according to claim 24, wherein the second preset condition is one or more combinations of the following conditions:

The message type is a discovery message of a ProSe service;

The discovery message is the same as the discovery message in the discovery message type list in the non-access stratum.
A communication device, characterized in that it includes a memory and a processor:

the memory stores computer programs;

The processor is configured to read the computer program in the memory, and perform the following steps:

receiving a first indication message;

Determine whether to send a ProSe service discovery message according to the first indication message;

The first indication message includes one or a combination of the following:

The first indication message is a discovery message indicating to send a ProSe service;

The first indication message is a discovery message indicating that the type of the discovery message is a ProSe service;

The first indication message is a service feature indicating a discovery message of a ProSe service, wherein the service feature is a service cycle related to the ProSe service and a service start time;

The first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal.
The device of claim 31, wherein the processor is configured to:

determining whether to send the discovery message of the ProSe service according to the detected trigger condition;

The trigger conditions include one or a combination of the following conditions:

The radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value;

The terminal receives a discovery message request sent by another terminal;

The target address corresponding to the discovery message request received by the terminal is in the target address list;

The terminal is in a state of receiving or sending the discovery message.
The device of claim 31, wherein the processor is further configured to:

If the first indication message is a discovery message indicating that the type of the discovery message is a ProSe service, determine to send the discovery message that the type of the discovery message is a ProSe service; or

If the first indication message indicates that the target address corresponding to the ProSe service discovery message is a ProSe service terminal, it is determined that the type of the discovery message to be sent is a ProSe service discovery message.
The device according to claim 31, wherein when the processor determines whether to send the discovery message of the ProSe service, it specifically performs one or more combinations of the following:

When the trigger condition is that the radio resource occupancy rate of the direct communication link of the terminal exceeds a preset value, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal receives a discovery message request sent by other terminals, determine to send the discovery message of the ProSe service;

When the trigger condition is that the target address corresponding to the discovery message request received by the terminal is in the target address list, determine to send the discovery message of the ProSe service;

When the trigger condition is that the terminal is in the state of receiving or sending the discovery message, it is determined to send the discovery message of the ProSe service.
The device according to claim 31, wherein the processor is further configured to: before determining whether to send the discovery message of the ProSe service:

processing the discovery message according to the type of the discovery message;

A fixed code rate of the processed discovery message is calculated, and the discovery message is sent according to the fixed code rate.
The device of claim 35, wherein the processor is configured to:

processing the discovery message whose type is the relay service through a first preset mode, wherein the first preset mode directly uses the discovery message;

The discovery message whose type is the ProSe service is processed in a second preset mode, wherein the second preset mode compresses the discovery message.
The device of claim 35, wherein the processor is configured to:

Determine the transmission power corresponding to the fixed code rate according to the mapping relationship between the fixed code rate and the transmission power;

Sending the discovery message according to the sending power.
A communication device, characterized in that it includes a memory and a processor:

The memory is used to store computer programs;

The processor is configured to read the computer program in the memory, and perform the following steps:

Parse the message type of the received discovery message; transmit the discovery message corresponding to the message type to the non-access stratum.
The device of claim 38, wherein the processor is configured to:

If the message type is a discovery message of a relay service, transmitting the discovery message meeting the first preset condition to the non-access stratum;

If the message type is a discovery message of a ProSe service, the discovery message meeting the second preset condition is transmitted to the non-access stratum.
The device according to claim 38, wherein the processor is specifically configured to parse the message type of the received discovery message according to at least one of the following methods:

judging the message type of the discovery message according to the physical resource pool, wherein the physical resource pool stores discovery messages of the same type;

judging the message type of the discovery message according to the type identifier in the direct link control indication of the terminal;

The message type of the discovery message is judged according to the logical channel identification code in the terminal.
The device of claim 40, wherein the processor is specifically configured to:

If the physical resource pool where the discovery message is located stores a discovery message of a relay service, then determining that the discovery message is a discovery message of a relay service;

If the physical resource pool where the discovery message is located stores the discovery message of the ProSe service, then it is determined that the discovery message is the discovery message of the ProSe service.
The device of claim 40, wherein the processor is specifically configured to:

Acquiring the type identifier of the discovery message;

If the value of the type identifier is the first set value, then determine that the discovery message is a discovery message of a ProSe service;

If the value of the type identifier is the second set value, it is determined that the discovery message is a discovery message of a relay service.
The device of claim 40, wherein the processor is specifically configured to:

Obtain the logical channel identification code corresponding to the discovery message, and match the logical channel identification code with the first logical channel identification code list and the second logical channel identification code list, wherein the first logical channel identification code list saves The logical channel identification code of the discovery message of the relay service, and the logical channel identification code of the discovery message of the ProSe service is stored in the second logical channel identification code list;

If the logical channel identification code of the discovery message is in the first logical channel identification code list, then determine that the discovery message is a discovery message of a relay service;

If the logical channel identification code of the discovery message is in the second logical channel identification code list, determine that the discovery message is a discovery message of the ProSe service.
The device according to claim 39, wherein the first preset condition is one or more combinations of the following conditions:

The discovery message of the relay service has a corresponding signal-to-noise ratio;

The discovery message of the relay service has a corresponding channel quality value, wherein the channel quality value represents the communication quality of the wireless channel.
The device according to claim 39, wherein the second preset condition is one or more combinations of the following conditions:

The message type is a discovery message of a ProSe service;

The discovery message is the same as the discovery message in the discovery message type list in the non-access stratum.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable the computer to perform the tasks described in claims 1-7 and 8-15. any one of the methods described.
A computer program product, characterized in that, when the computer program product is invoked by a computer, it causes the computer to execute the method according to any one of claims 1-7 and 8-15.