WO2017049737A1

WO2017049737A1 - D2d relay resource allocation method, apparatus and system

Info

Publication number: WO2017049737A1
Application number: PCT/CN2015/093539
Authority: WO
Inventors: 雷艺学; 黎建辉; 江明; 郑倩; 张晨璐; 张云飞
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-09-25
Filing date: 2015-10-31
Publication date: 2017-03-30
Also published as: CN105246027A

Abstract

Disclosed are a D2D relay resource allocation method, apparatus and system. The method comprises: a first terminal acquires allocation information delivered by a base station, the allocation information comprising a side-chain link discovery resource pool, the side-chain link discovery resource pool being only used for discovering the first terminal, and the first terminal being a terminal having a relay function; broadcast information that the first terminal has the relay function by using the side-chain link discovery resource pool; or after a discovery request sent by a remote terminal is received, send response information to the remote terminal by using the side-chain link discovery resource pool, the response information being used for indicating that the first terminal has the relay function. In the present application, a base station allocates a resource pool that is specially used for discovering a terminal having a relay function for the terminal having a relay function, so that the phenomenon of switching monitoring in multiple resource pools by the remote terminal is avoided, thereby improving the efficiency of the discovery process of a terminal having a relay function, and shortening the time consumption of the process of establishing a D2D communication link.

Description

D2D relay resource configuration method, device and system

Technical field

The present invention relates to the field of wireless communications, and in particular, to a D2D relay resource configuration method, apparatus, and system.

Background technique

Device to Device (D2D) communication is a communication technology introduced in the 3rd Generation Partnership Project (3GPP). In the Long Term Evolution (LTE) network architecture, it The two terminals that are close to each other in the cellular network are allowed to communicate directly with each other through a specific channel, instead of being transmitted by the source terminal to the base station and then forwarded by the base station to the destination terminal, as in the conventional communication service. The D2D relay is introduced on the basis of D2D communication, that is, the D2D communication is performed between the relay UE and the relayed UE (ie, the remote UE), and the relay UE communicates with the base station in a conventional manner. The communication between the remote UE and the base station can be implemented by the relay UE. The D2D communication can adopt a base station scheduling mode and a resource pool mode. The prior art does not support the base station or the relay UE to schedule the remote UE. Therefore, the D2D relay communication needs to be performed through the resource pool.

The operation of the D2D trunk requires the support of the base station. According to the prior art, a base station having a relay support function broadcasts a communication resource pool to mobile terminals in a cell according to a certain period. Therefore, a plurality of communication resource pools exist between mobile terminals for the mobile terminal to select and apply. When a terminal acts as a terminal with a relay function, it uses its own resource pool to broadcast a message with its own relay function, so that the remote terminal can obtain the message, find the terminal with the relay function, and perform relaying. Communication. Since there are multiple terminals with relay functions in the cell, each terminal with the relay function sends the broadcast message in the resource pool used by the terminal, and the remote terminal wants to find the terminal with the relay function. At this time, it is necessary to monitor whether there is a broadcast message in each resource pool one by one to determine whether there is a terminal having a relay function.

It can be seen that the existing resource configuration mode makes the remote terminal need to monitor one by one in multiple resource pools to determine the terminal with the relay function, which causes the entire process of establishing the D2D communication link to take a long time, which is disadvantageous for Fast D2D communication.

Summary of the invention

The present invention discloses a D2D relay resource configuration method, device, and system, which solves the problem that the process of establishing a D2D communication link caused by the resource configuration mode in the prior art is long.

In a first aspect, an embodiment of the present invention provides a D2D relay resource configuration method, including:

The first terminal acquires the configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, and the side chain link discovery resource pool is used only for discovering the first terminal, and the first terminal a terminal having a relay function;

Using the side chain link to discover that the resource pool broadcasts information that has its own relay function; or after receiving the discovery request sent by the remote terminal, using the sidechain link discovery resource pool to send response information to the remote terminal The response information is used to indicate that the first terminal has a relay function.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the receiving, by the remote terminal, the discovery request sent by the remote terminal includes: receiving, by the remote terminal, the discovery by using the sidechain link discovery resource pool request.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the Uu link quality value between the first terminal and the base station is not greater than a first threshold, The first threshold is the maximum value of the link quality of the terminal and the base station Uu having the relay function.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the Uu link quality value between the first terminal and the base station is not greater than a first threshold, and is in an RRC a connection state, where the first threshold is a maximum value of a link quality of a terminal and a base station Uu having a relay function.

In a second aspect, an embodiment of the present invention provides a D2D relay resource configuration method, including:

The base station sends the configuration information to the first terminal, where the first terminal is a terminal having a relay function, and the configuration information includes a sidechain link discovery resource pool, so that the first terminal uses the side chain The path discovery resource pool broadcasts the information that has the relay function, or sends the response information to the remote terminal by using the sidechain link discovery resource pool after receiving the discovery request sent by the remote terminal, the response information The first terminal is configured to have a relay function, and the sidechain link discovery resource pool is used only for discovering the first terminal.

In a third aspect, an embodiment of the present invention provides a D2D trunk resource configuration method, including:

The first terminal acquires configuration information delivered by the base station, where the configuration information includes a side chain link In the current resource pool, the side chain link discovery resource pool is only used to discover the first terminal, and the first terminal is a terminal having a relay function;

The resource chain is used to discover that the resource pool has its own relay function.

In a fourth aspect, an embodiment of the present invention provides a D2D trunk resource configuration method, including:

After receiving the discovery request sent by the remote terminal, the resource pool of the bypass link is used to send response information to the remote terminal, where the response information is used to indicate that the first terminal has a relay function.

In a fifth aspect, an embodiment of the present invention provides a D2D trunk resource configuration method, including:

a configuration information obtaining module, configured to acquire configuration information delivered by the base station, where the configuration information includes a sideband link discovery resource pool, where the sidechain link discovery resource pool is used only for discovering the first terminal, The first terminal is a terminal having a relay function;

a broadcast module, configured to use the sidechain link discovery resource pool to broadcast information that has a relay function;

and / or;

The discovery request response module is configured to: after receiving the discovery request sent by the remote terminal, use the sidechain link discovery resource pool to send response information to the remote terminal, where the response information is used to indicate the first terminal With relay function.

In a sixth aspect, an embodiment of the present invention provides a D2D trunk resource configuration method, including:

a configuration information sending module, configured to send configuration information to the first terminal, where the first terminal is a terminal having a relay function, and the configuration information includes a sidechain link discovery resource pool, so that the first terminal Using the side chain link to discover that the resource pool broadcasts the information that has the relay function, or after receiving the discovery request sent by the remote terminal, using the sidechain link discovery resource pool to send a response to the remote terminal. The information is used to indicate that the first terminal has a relay function, and the sidechain discovery resource pool is used only for discovering the first terminal.

In a seventh aspect, the embodiment of the present invention provides a D2D relay resource configuration method, including: a base station, and at least one first terminal connected to the base station;

The base station is configured to send configuration information to the terminal, where the configuration information includes a sideband link discovery resource pool, and the sidechain link discovery resource pool is used only for discovering the first terminal;

The first terminal is configured to receive the configuration information, use the sidechain link to discover that the resource pool broadcasts information that has a relay function, or: after receiving the discovery request sent by the remote terminal, to the remote end The terminal sends response information, where the response information is used to indicate that the first terminal has a relay function.

In the D2D trunk resource configuration method disclosed in the embodiment of the present application, the base station configures, for the terminal having the relay function, a resource pool specifically for discovering the terminal having the relay function, so that the terminal having the relay function can be dedicated. The terminal discovery process with the relay function is completed in the resource pool, and is detected by the remote terminal, which avoids the phenomenon that the remote terminal switches between monitoring in multiple resource pools, improves the efficiency of the terminal discovery process with the relay function, and shortens the establishment. The time taken for the D2D communication link process.

DRAWINGS

1 is a schematic structural diagram of a D2D communication relay system disclosed in an embodiment of the present application;

2 is a flowchart of a method for configuring a D2D relay resource according to an embodiment of the present application;

FIG. 3 is a flowchart of a method for configuring another D2D relay resource according to an embodiment of the present disclosure;

4 is a flowchart of a method for configuring another D2D relay resource according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a D2D relay resource configuration apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another D2D relay resource configuration apparatus according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another D2D relay resource configuration apparatus according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a D2D relay resource configuration system according to an embodiment of the present application.

detailed description

The embodiment of the invention provides a method, a device and a system for configuring a D2D relay resource, which can improve the efficiency of the terminal discovery process with the relay function and shorten the time-consuming process of establishing the D2D communication link process. The details are described below separately.

In order to make those skilled in the art better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. However, the described embodiments are merely a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

The terms "first", "second", "third", "fourth" and the like in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order. Or prioritization. It is to be understood that the data so used may be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than what is illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

As shown in FIG. 1 , the D2D communication relay system disclosed in the present application includes a base station 101 and at least one terminal 102, wherein among a plurality of terminals, a terminal located outside the edge of the coverage area or outside the coverage area is defined as the remote terminal 102a. A terminal that is in coverage and has a relay function is defined as a relay terminal 102b, and other terminals that do not have a relay function are 102c. The dotted line in the figure represents the communication link between the remote terminal and the base station, and realizes the communication link on the remote terminal connected to the base station through the relay terminal.

A method for configuring a D2D trunk resource disclosed in the embodiment of the present application is as shown in FIG. 2, and includes:

Step S201: The first terminal acquires configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, and the sidechain link discovery resource pool is used only for discovering the first terminal, The first terminal is a terminal having a relay function.

The number of the first terminals in this embodiment is one or more. The sidechain link discovery resource pool includes: a sidechain link discovery transmission resource pool and a sidechain link discovery reception resource pool.

Step S202: The resource pool is broadcasted by using the side chain link to broadcast information that has a relay function, and the information is used by the remote terminal to discover the first terminal.

After receiving the sidechain discovery resource pool, the first terminal actively uses the resource pool to broadcast information about its own relay function to its terminal. After the remote terminal monitors the information of the resource pool, the terminal uses the information to calculate the communication quality with each first terminal, and selects according to the communication quality. A target terminal as its terminal for D2D communication.

In this embodiment, the sidechain link discovery resource pool is used by the first terminal to broadcast information that has its own relay function, and cannot be used for other UEs or other services.

Another D2D relay resource configuration method disclosed in this application is shown in FIG. 3, and includes:

Step S301: The first terminal acquires configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, and the sidechain link discovery resource pool is used only for discovering the first terminal, The first terminal is a terminal having a relay function.

Step S302: After receiving the discovery request sent by the remote terminal, use the sidechain link discovery resource pool to send response information to the remote terminal, where the response information is used to indicate that the first terminal has a relay function. .

As described in the foregoing embodiment, if a certain terminal determines that it is a remote terminal, but it needs to communicate with a base station or other terminal, it will send a discovery request to the surrounding terminal, if the terminal does not have the relay function. If the request is received, it will be ignored. If the terminal having the relay function receives the request, it uses the configured sidechain link to discover the resource pool, and sends a response message to the remote terminal in response to the discovery request. For example, a resource pool is fed back through a sidechain link to feed back a response packet. When the remote terminal receives the response information, it can determine which terminals are terminals having the relay function, and then establish a connection with the terminals.

In this embodiment, the sidechain link discovery resource pool is used by the first terminal to send response information to the remote terminal, and cannot be used for other UEs or other services.

As shown in the foregoing two embodiments, the same feature is that the sideband link discovery resource pool configured by the base station for the first terminal is a resource pool dedicated to discovering a terminal having a relay function, and is not used for other applications. Therefore, the terminal having the relay function can use the dedicated resource pool to send information to the remote terminal, and the remote terminal only needs to find the terminal with the relay function in the resource pool, without listening to other resource pools, thereby making the whole The discovery process of the function terminal is performed in a certain resource pool, which improves the efficiency of the terminal discovery process with the relay function and shortens the time consuming process of establishing the D2D communication link process.

At the same time, the use of a dedicated resource pool also avoids the impact of other communication processes on the terminal discovery process with relay function, and improves the stability of the terminal discovery process with relay function.

In the embodiment shown in FIG. 2 and FIG. 3, the manner in which the first terminal discovers the resource pool by using the side chain link is different, and the difference reflects the process of discovering the terminal having the relay function at the remote terminal. The identity of the initiator is different. In the above embodiment, the first terminal may be configured to have one of the functions of discovering the resource pool by using the side chain link, or configured to have the above two ways of discovering the resource pool by using the sidechain link. The function, depending on the application scenario, chooses a different way.

In the embodiment shown in FIG. 2, after receiving the configuration information, the first terminal actively uses the sidechain link discovery resource pool to broadcast information that has its own relay function, and when the remote terminal receives the information, It can be clarified that who is a terminal having a relay function can directly use the broadcast information to calculate the link quality of each terminal having a relay function, thereby determining a terminal having a relay function, and implementing D2D communication.

In the embodiment shown in FIG. 3, after receiving the configuration information, the first terminal does not actively broadcast its own function, but waits for the remote terminal to initiate a discovery request, and then uses the sidechain link to discover the resource pool response. The request of the remote terminal sends a response message to the remote terminal. After receiving the response information, the remote terminal does not know that the terminal has the relay function, and then calculates the link quality with the first terminal, and then determines the terminal with the relay function to implement D2D communication.

Comparing the two solutions, it can be seen that the embodiment shown in FIG. 2 only needs to broadcast the message by the first terminal, so that the remote terminal can calculate the link quality. Therefore, it can be seen that the embodiment shown in FIG. 2 discloses The D2D relay resource configuration method is shorter than the method shown in FIG. 3, and the resource utilization is less.

In the embodiment of the present application, the remote terminal does not only include the terminal at the edge of the base station coverage or the coverage of the base station in the physical location, and may also include the physical location, located near the base station, but the surrounding environment causes A terminal in which the mobile terminal cannot perform normal communication with the base station, for example, in a basement located near the base station, or in an area near the base station that is not covered by the base station signal.

When the terminal determines whether it is a remote terminal, it may first measure the Uu link quality of the Uu link with the base station. If the Uu link quality is less than the Uu link quality minimum that can communicate with the base station normally, or there is no coverage signal of the base station, Then, it is a remote UE, and communication with the network needs to be implemented by relaying the UE. The Uu link quality minimum value for normal communication with the base station may be sent by the base station to each terminal within its coverage by means of broadcast, or may be preset on the terminal. Set on each terminal The Uu link quality minimum values for normal communication with the base station may be the same or different.

In the above embodiment, the process of acquiring configuration information by the first terminal includes: receiving, by the first terminal, configuration information broadcast by the base station.

The base station continuously broadcasts configuration information to the terminal according to a predetermined period.

The base station can broadcast the configuration information to the first terminal by using the system information block.

Alternatively, the process for the first terminal to obtain the configuration information includes: when it is determined that the relay function needs to be provided for the other terminal, the configuration information request is sent to the base station; and the configuration information sent by the base station after receiving the configuration information request is received.

In this implementation manner, the first terminal considers whether to provide a relay function for other terminals, the process depends on the user selection of the first terminal, and the user decides whether to provide a relay function for other terminals, or may be pre- The first terminal sets the trigger condition. For example, the Uu link quality value of the base station is within a certain range. If the condition is met, the first terminal is triggered to automatically determine that the relay function is to be provided for other terminals. When the first terminal determines that the relay function needs to be provided for the other terminal, the configuration information request is sent to the base station to inform the base station that the first terminal can serve as the terminal with the relay function, and after receiving the configuration information request, the base station configures the configuration information. Send to the first terminal.

In this embodiment, when the base station sends the resource configuration information to the first terminal, the base station may use dedicated signaling, that is, RRC signaling. However, the premise is that there is a dedicated signaling connection between the base station and the first terminal.

In the above two embodiments, the base station may only send configuration information to the first terminal. The configuration information can be in the form of a system message block. Because the first terminal is a terminal having a relay function, in other words, the first terminal is a terminal having a relay function, and therefore, after receiving the configuration information, the resource pool of the sidechain link is used.

Of course, the base station may also send configuration information to other terminals than the first terminal. If the base station can be in the form of broadcast, the configuration information can be broadcast to all terminals in the coverage of the base station. For terminals that do not have a relay function, they usually ignore the configuration information and do not receive it.

In the above embodiment, since the base station can broadcast configuration information to all terminals in a broadcast manner, other terminals can receive the configuration information. When these terminals and the base station cannot communicate normally, that is, when they become remote terminals, they can also use the sidechain link in the received configuration information to discover the resource pool.

Alternatively, since the terminal is mobile, the role of a certain terminal is not fixed, which is related to Its location and direct relationship with the quality of the Uu link of the base station. If a terminal is a terminal with a relay function at a previous moment, when it receives the configuration information sent by the base station, it has the right to use the sidechain link to discover the resource pool. If the terminal moves to the next moment, the terminal moves to the next time. Outside the coverage of the base station, the latter, in some environments where normal communication is not possible, the identity of the terminal is transformed into a remote terminal, and at this time, it can also use the side chain link to discover the resource pool.

The process of the D2D trunk resource configuration method may be as shown in FIG. 4, where the remote terminal can receive the configuration information and obtain the sidechain link discovery resource pool, including:

Step S401: The remote terminal and the first terminal receive configuration information sent by the base station;

Step S402: The first terminal uses the sidechain link discovery resource pool to broadcast information that has its own relay function.

Step S403: The remote terminal monitors information broadcast by the first terminal on the sidechain link discovery resource pool.

The process of the D2D trunk resource configuration method may also be as shown in FIG. 5, where the remote terminal can receive the configuration information and obtain the sidechain link discovery resource pool, including:

Step S501: The remote terminal and the first terminal receive configuration information sent by the base station.

Step S502: The remote terminal uses the sidechain link discovery resource pool to send a discovery request to the first terminal.

Step S503: The first terminal uses the sidechain link discovery resource pool to send response information to the remote terminal.

Even in the above two examples, the remote terminal may use the side chain link to discover the resource pool. However, the manner in which the resource pool is discovered by using the side chain link is limited to listening to the message broadcast by the first terminal on the resource pool, or utilizing The resource pool sends a discovery request to the terminal having the relay function, and this process is also a way for the terminal having the relay function to be discovered by the remote terminal. Therefore, it does not deviate from the sidechain link and discover that the resource pool is only used for the core purpose of the terminal with the relay function being discovered by the remote terminal.

In summary, the present application is not limited to the sidechain link discovery resource pool can only be used by the terminal having the relay function, and can also be used by the remote terminal, as long as the resource pool is discovered by using the sidechain link. The manner in which the remote terminal discovers the terminal having the relay function is the scope of protection of the present application.

In the above embodiments, the configuration information may include a sidechain link discovery resource pool. Including the sidechain link discovery resource pool usage period. When the sidechain link discovers that the resource pool is in the use period, the first terminal can use the information to perform the broadcast function with the relay function, or after receiving the discovery request sent by the remote terminal, use the resource to respond to the Discover the request.

In the foregoing embodiments, the terminal having the relay function may be: the terminal with the Uu link quality value of the base station not greater than the first threshold, where the first threshold is the quality of the terminal and the base station Uu with the relay function. The maximum value.

This condition is set because the distance between each terminal and the base station is uncertain within the coverage of the base station. If some terminals are close to the base station, and the remote terminal selects these terminals, it is associated with these terminals. The link quality and its link quality with the base station are not greatly improved, which directly leads to poor D2D communication quality and cannot achieve the expected effect. Therefore, this condition can be utilized to screen out some of the terminals. Furthermore, it is also possible to prevent the remote terminal from interacting with these terminals that do not have the relay condition, thereby reducing the utilization of resources.

A terminal that meets the above conditions can obtain a sidechain link discovery resource pool through the configuration information sent by the base station through broadcast.

In addition, in another parallel implementation, the terminal having the relay function may be: the terminal with the Uu link quality value of the base station not greater than the first threshold, and the terminal in the dedicated signaling connection state, The first threshold is the maximum value of the link quality of the terminal and the base station Uu having the relay function.

In this embodiment, in addition to the link quality requirement for the terminal, the link state of the terminal is also required, so that the terminal can receive the configuration information sent by the base station by using dedicated signaling, and obtain a sidechain link discovery resource pool.

The above embodiments are all explained from the perspective of the first terminal, and the scheme is briefly described from the base station side. As shown in FIG. 4, another D2D relay resource configuration method disclosed in the present application includes:

Step S401: The base station sends configuration information to the first terminal, where the first terminal is a terminal having a relay function, and the configuration information includes a sidechain link discovery resource pool, so that the first terminal uses the The sidechain link discovery resource pool broadcasts its own relaying function information, or after receiving the discovery request sent by the remote terminal, uses the sidechain link discovery resource pool to send response information to the remote terminal. The response information is used to indicate that the first terminal has a relay function, and the side chain The link discovery resource pool is only used to discover the first terminal.

In this embodiment, the first terminal is at least one, and as illustrated in the figure, the first terminal a and the first terminal b are included.

In this embodiment, the base station configures, for the terminal having the relay function, a resource pool dedicated to discovering the terminal having the relay function, so that the terminal having the relay function can complete the terminal having the relay function in the dedicated resource pool. The discovery process is discovered by the remote terminal, which avoids the phenomenon that the remote terminal switches between monitoring in multiple resource pools, improves the efficiency of the terminal discovery process with the relay function, and shortens the time consuming process of establishing the D2D communication link.

Further, the base station may send the configuration information to the first terminal in the form of a broadcast. Specifically, the base station continuously broadcasts configuration information to the terminal according to a predetermined period. The base station can broadcast the configuration information to the first terminal by using the system information block.

Alternatively, the base station may send the configuration information to the first terminal after receiving the configuration information request sent by the first terminal. The configuration information request is sent to the base station when the first terminal determines that a relay function needs to be provided for other terminals. In this embodiment, when the base station sends the resource configuration information to the first terminal, the base station may use dedicated signaling, that is, RRC signaling. However, the premise is that there is a dedicated signaling connection between the base station and the first terminal.

In the above embodiments, the configuration information includes a sidechain link discovery resource pool, and may include a life span of the sidechain link discovery resource pool. When the sidechain link discovers that the resource pool is in the use period, the first terminal can use the information to perform the broadcast function with the relay function, or after receiving the discovery request sent by the remote terminal, use the resource to respond to the Discover the request.

In the above embodiments, the base station may be configured to have any one of the foregoing functions of transmitting configuration information to the first terminal, or may be configured to have the foregoing two functions of sending configuration information to the first terminal. Choose one of the different scenarios depending on the application scenario.

The present application also discloses a D2D relay resource configuration apparatus 11, as shown in FIG. 6, comprising:

The configuration information obtaining module 601 is configured to acquire configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, where the sidechain link discovery resource pool is used only for discovering the first terminal. The first terminal is a terminal having a relay function;

The broadcast module 602 is configured to use the sidechain link discovery resource pool to broadcast information that has a relay function.

Another D2D relay resource configuration apparatus 12 disclosed in the embodiment of the present application, as shown in FIG. 7, includes:

The discovery request response module 702 is configured to: after receiving the discovery request sent by the remote terminal, use the sidechain link discovery resource pool to send response information to the remote terminal, where the response information is used to indicate the first The terminal has a relay function.

The D2D relay resource configuration device 11 shown in the embodiment of FIG. 6 and the D2D relay resource configuration device 12 shown in FIG. 7 have the same configuration information acquisition module. However, the manner in which the first terminal discovers the resource pool by using the side chain link is different, and the difference is that the identity of the initiator is different in the process of the terminal that the remote terminal discovers the relay function. In the above embodiment, the D2D relay resource configuration apparatus may be configured to have one of the functions of discovering the resource pool by using the side chain link, or configured to simultaneously have the above two types of utilization sidechain link discovery resources. The function of the pool mode, and depending on the application scenario, choose a different way.

On the basis of the foregoing two embodiments, the configuration information acquiring module includes:

The first receiving unit is configured to receive configuration information broadcast by the base station.

At this time, the base station transmits the configuration information to the first terminal in the form of a broadcast.

Alternatively, the configuration information acquiring module includes:

a configuration information request sending unit, configured to send a configuration information request to the base station when the relay function needs to be provided for other terminals;

And a second receiving unit, configured to receive configuration information that is sent by the base station after receiving the configuration information request.

For the working process of the device disclosed in this embodiment, reference may be made to the method embodiment shown in FIG. 2-3, and details are not described herein again.

Another D2D relay resource configuration apparatus disclosed in the embodiment of the present application includes:

a configuration information sending module, configured to send configuration information to the first terminal, where the configuration information includes a sidechain link discovery resource pool, so that the first terminal uses the sidechain link to discover a resource pool broadcast The information of the relay function, or after receiving the discovery request sent by the remote terminal, using the sidechain link discovery resource pool to respond to the discovery request, the first terminal is a terminal having a relay function, The sidechain link discovery resource pool is only used by terminals with relay capabilities to be discovered by remote terminals.

Further, the configuration information sending module includes:

a broadcast unit, configured to broadcast, by the terminal, the configuration information.

Alternatively, the configuration information sending module includes:

a configuration information request receiving unit, configured to receive a configuration information request sent by the first terminal, where the request is sent to the base station when the first terminal needs to provide a relay function for other terminals;

And a configuration information sending unit, configured to send the configuration information to the first terminal.

For the working process of the device disclosed in the embodiment of the present application, refer to the method embodiment, and details are not described herein again.

The present application also discloses a D2D relay resource configuration system, the structure of which is shown in Figure 8, comprising: a base station 801, and at least one first terminal 802 connected to the base station;

The base station 801 is configured to send, to the terminal, configuration information, where the configuration information includes a sideband link discovery resource pool, where the sidechain link discovery resource pool is used only to discover the first terminal;

The first terminal 802 is configured to receive the configuration information, use the sidechain link discovery resource pool to broadcast information that has a relay function, or send a discovery request sent by the remote terminal to the far The terminal terminal sends response information, where the response information is used to indicate that the first terminal has a relay function.

In the present embodiment, the function of each component is referred to the method embodiment.

In the D2D trunk resource configuration system disclosed in the present application, the base station configures a resource pool dedicated to discovering a terminal having a relay function for a terminal having a relay function, so that a terminal having a relay function can be completed in a dedicated resource pool. The terminal discovery process with the relay function is discovered by the remote terminal, which avoids the phenomenon that the remote terminal switches between monitoring in multiple resource pools, improves the efficiency of the terminal discovery process with the relay function, and shortens the process of establishing the D2D communication link. Time consuming.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. Including a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention. Step. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents of the technical solutions of the embodiments of the present invention.

Claims

A D2D trunk resource configuration method, comprising:

The first terminal acquires the configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, and the side chain link discovery resource pool is used only for discovering the first terminal, and the first terminal a terminal having a relay function;

Using the side chain link to discover that the resource pool broadcasts information that has its own relay function; or after receiving the discovery request sent by the remote terminal, using the sidechain link discovery resource pool to send response information to the remote terminal The response information is used to indicate that the first terminal has a relay function.
The method according to claim 1, wherein the receiving the discovery request sent by the remote terminal comprises: receiving a discovery request sent by the remote terminal by using the sidechain link discovery resource pool.
The method according to claim 2, wherein the Uu link quality value between the first terminal and the base station is not greater than a first threshold, and the first threshold is a terminal having a relay function and a base station Uu The maximum value of the link quality.
The method of claim 2 wherein:

The Uu link quality value between the first terminal and the base station is not greater than the first threshold, and is in an RRC connected state, where the first threshold is a maximum value of the link quality of the terminal and the base station Uu having the relay function.
A D2D trunk resource configuration method, comprising:

The base station sends the configuration information to the first terminal, where the first terminal is a terminal having a relay function, and the configuration information includes a sidechain link discovery resource pool, so that the first terminal uses the side chain The path discovery resource pool broadcasts the information that has the relay function, or sends the response information to the remote terminal by using the sidechain link discovery resource pool after receiving the discovery request sent by the remote terminal, the response information The first terminal is configured to have a relay function, and the sidechain link discovery resource pool is used only for discovering the first terminal.
A D2D trunk resource configuration method, comprising:

The first terminal acquires the configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, and the side chain link discovery resource pool is used only for discovering the first terminal, and the first terminal a terminal having a relay function;

The resource chain is used to discover that the resource pool has its own relay function.
A D2D trunk resource configuration method, comprising:

The first terminal acquires the configuration information that is sent by the base station, where the configuration information includes a sideband link discovery resource pool, and the side chain link discovery resource pool is used only for discovering the first terminal, and the first terminal a terminal having a relay function;

After receiving the discovery request sent by the remote terminal, the resource pool of the bypass link is used to send response information to the remote terminal, where the response information is used to indicate that the first terminal has a relay function.
A device for configuring a D2D trunk resource, comprising:

a configuration information obtaining module, configured to acquire configuration information delivered by the base station, where the configuration information includes a sideband link discovery resource pool, where the sidechain link discovery resource pool is used only for discovering the first terminal, The first terminal is a terminal having a relay function;

a broadcast module, configured to use the sidechain link discovery resource pool to broadcast information that has a relay function;

and / or;

The discovery request response module is configured to: after receiving the discovery request sent by the remote terminal, use the sidechain link discovery resource pool to send response information to the remote terminal, where the response information is used to indicate the first terminal With relay function.
A device for configuring a D2D trunk resource, comprising:

a configuration information sending module, configured to send configuration information to the first terminal, where the first terminal is a terminal having a relay function, and the configuration information includes a sidechain link discovery resource pool, so that the first terminal Using the side chain link to discover that the resource pool broadcasts the information that has the relay function, or after receiving the discovery request sent by the remote terminal, using the sidechain link discovery resource pool to send a response to the remote terminal. The information is used to indicate that the first terminal has a relay function, and the sidechain discovery resource pool is used only for discovering the first terminal.
A D2D relay resource configuration system, comprising: a base station, and at least one first terminal connected to the base station;

The base station is configured to send configuration information to the terminal, where the configuration information includes a sideband link discovery resource pool, and the sidechain link discovery resource pool is used only for discovering the first terminal;

The first terminal is configured to receive the configuration information, and use the sidechain link to discover a resource pool. The broadcaster has the information of the relay function; or, after receiving the discovery request sent by the remote terminal, sends the response information to the remote terminal, where the response information is used to indicate that the first terminal has the relay function.