WO2015062507A1

WO2015062507A1 - Method and device for transmission of d2d resource configuration information

Info

Publication number: WO2015062507A1
Application number: PCT/CN2014/089793
Authority: WO
Inventors: 赵锐; 高秋彬; 陈文洪; 彭莹
Original assignee: 电信科学技术研究院
Priority date: 2013-11-01
Filing date: 2014-10-29
Publication date: 2015-05-07
Also published as: CN104618913B; CN104618913A

Abstract

Disclosed are a method and a device for transmission of device-to-device (D2D) resource configuration information, said method comprising the following steps: a D2D terminal receives D2D resource configuration information comprising resource location information (100) for a competitive area of a D2D superframe; on the basis of the received D2D resource configuration information, the D2D terminal generates new D2D resource configuration information which comprises resource location information (110) for the competitive area of a D2D superframe; once the D2D terminal has obtained transmission resources, said transmission resources are used to send the generated D2D resource configuration information (120). The D2D resource configuration information of the present application comprises resource location information for a competitive area, thus allowing a D2D terminal to acquire through competition the resource location information for a competitive area without encountering any conflict with transmission resources obtained through scheduling.

Description

Method and device for transmitting D2D resource configuration information

The present application claims priority to Chinese Patent Application No. 201310536038.6, the disclosure of which is entitled "A D2D Resource Configuration Information Transmission Method and Apparatus" on November 1, 2013, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a device-to-device (D2D) resource configuration information transmission method and device.

Background technique

D2D, that is, the terminal direct-through technology, refers to a method in which adjacent terminals can transmit data through a direct link in a short range without forwarding through a central node (ie, a base station).

In the D2D study, there are four main scenarios to consider, and each scene can be combined. These four scenarios are:

User equipment (UE, also known as terminal) 1 and UE2 performing D2D communication are both out of coverage;

UE1 and UE2 performing D2D communication, wherein UE1 is in the network coverage (In Coverage), and UE2 is outside the network coverage;

UE1 and UE2 performing D2D communication are all within the network coverage of the same cell;

UE1 and UE2 performing D2D communication are within the network coverage of different cells.

In D2D communication, in addition to the one-to-one communication mode between UEs, a typical application scenario includes group/broadcast communication between D2D UEs, which can be implemented as follows:

One UE transmits the same data (group communication) to all UEs in one communication group by a single transmission;

One UE transmits the same data (broadcast communication) to all nearby UEs authorized by a single transmission;

This scenario can be used for firefighting, rescue, and counter-terrorism in public safety applications.

In D2D transmission, there are mainly two methods of resource allocation or resource occupation:

Based on the contention resource allocation method, each D2D UE competes for resource transmission according to the same principle. This scenario is mainly used when the non-central node performs scheduling, and each D2D UE can still communicate with each other, thereby ensuring communication robustness.

Based on the scheduling resource allocation method, the resources transmitted by the D2D UE are scheduled by an evolved node (eNB) or a cluster head (CH) with scheduling capability, which can effectively improve resource utilization.

Considering the scenario in which part of the D2D UE is within the network coverage, for example, UE1 is located in the network coverage, its D2D transmission may be scheduled by an evolved base station (eNB), but for UE2, it is located outside the coverage of the eNB, so UE2 Follow the competition in a way that is transmitted. The resources acquired by the UE2 through the contention may collide with the resources scheduled by the eNB for the UE1.

Summary of the invention

An object of the present invention is to provide a method and a device for transmitting D2D resource configuration information, in order to solve the problem that a D2D UE in a network coverage is covered by a D2D UE and a D2D UE in a network coverage. Scheduling the problem of transmission resource conflicts.

The object of the invention is achieved by the following technical solutions:

A method for transmitting D2D resource configuration information on a D2D terminal side includes:

The D2D terminal receives D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The D2D terminal generates new D2D resource configuration information according to the received D2D resource configuration information, where the generated D2D resource configuration information includes resource location information of a contention area in the D2D superframe.

After obtaining the transmission resource, the D2D terminal sends the generated D2D resource configuration information through the obtained transmission resource.

In the embodiment of the present invention, the D2D superframe is composed of D2D subframes within its duration.

In the prior art, the transmission resource obtained by the D2D UE competition outside the network coverage conflicts with the transmission resource obtained by the D2D UE in the network coverage, because the D2D UE is not reserved for acquiring the transmission resource exclusively through the competition. The competition area, and the D2D UE outside the network coverage cannot know which resources can be obtained through competition. According to the method provided by the embodiment of the present invention, after receiving the D2D resource configuration information, the D2D terminal generates new D2D resource configuration information according to the D2D resource configuration information and sends the D2D resource configuration information. The contention area is divided, and the D2D resource configuration information includes the resource location information of the contention area, so that the D2D terminal (especially the D2D terminal outside the network coverage) can know the resource location where the contention area is located, so that the resources of the competition area can be obtained through competition. Location information, and does not conflict with transmission resources obtained by other D2D terminals through scheduling.

Preferably, the specific implementation manner of the D2D resource configuration information that the D2D terminal sends the generated D2D resource configuration information may be: when the data transmission needs to be performed, the D2D terminal sends the generated D2D resource configuration information and the to-be-sent transmission through the acquired transmission resource. The data.

Based on any of the foregoing embodiments, the D2D resource configuration information may further include any one of the following parameters or a combination:

(1) The D2D resource configuration information received by the D2D terminal may further include: a duration of the D2D superframe;

The generated D2D resource configuration information may further include: a duration of the D2D superframe.

(2) The D2D resource configuration information received by the D2D terminal may further include: resource location information of the non-contention area in the D2D superframe;

The generated D2D resource configuration information may further include: resource location information of the non-contention area in the D2D superframe.

If the D2D resource configuration information includes the resource location information of the non-contention area in the D2D superframe, the D3D resource configuration information received by the D2D terminal may also include: the number of layers of the non-contention area;

The generated D2D resource configuration information may further include: a number of layers of the non-contention area, where the number of layers of the non-contention area in the D2D resource configuration information received by the D2D terminal is increased by 1 and a predetermined maximum layer threshold. Most of Small value.

If the D2D resource configuration information includes the resource location information of the non-contention area in the D2D superframe, the D2D resource configuration information received by the D2D terminal may further include: the subchannel division information of the non-contention area;

The generated D2D resource configuration information may further include: subchannel division information of the non-contention area.

(5) If the D2D terminal receives the D2D resource configuration information sent by the network side device, the D2D resource configuration information may further include: D2D subframe configuration information;

The generated D2D resource configuration information further includes: D2D subframe configuration information.

(6) If the D2D terminal receives the D2D resource configuration information sent by the D2D terminal as the cluster head, the D2D resource configuration information may further include: a resource location of a Resource Request (R-REQ) region in the D2D superframe. information;

The generated D2D resource configuration information may further include: resource location information of the R-REQ area in the D2D superframe.

(7) The D2D resource configuration information received by the D2D terminal may further include: subchannel division information of the contention area;

The generated D2D resource configuration information may further include: subchannel division information of the contention area.

The D2D terminal receives the D2D resource configuration information, and the D2D terminal receives the system broadcast message sent by the network side device, where the system broadcast message carries the D2D resource. Configuration information. The specific implementation manner of the D2D terminal receiving the D2D resource configuration information may be that the D2D terminal receives the D2D resource configuration information that is sent by the D2D terminal that is the cluster head in the subframe where the beacon information is located.

The D2D terminal may further determine the D2D superframe according to the received D2D resource configuration information, before the D2D terminal sends the generated D2D resource configuration information by using the obtained transmission resource, according to any of the foregoing D2D terminal side method embodiments. a contention area in which the transmission resource is acquired in a competitive manner; or the D2D terminal requests resource scheduling from the network side device or the D2D terminal as a cluster head, and is scheduled according to the network side device or the D2D terminal that is the cluster head. The information acquires transmission resources of the non-contention area in the D2D superframe.

A method for transmitting D2D resource configuration information on a D2D resource allocation device side includes:

The D2D resource allocation device determines a contention region in the D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

The D2D resource allocation device generates D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The D2D resource allocation device sends the D2D resource configuration information to the D2D terminal.

According to the method provided by the embodiment of the present invention, the D2D resource allocation device determines the contention area in the D2D superframe, and the D2D resource configuration information that is generated and sent includes the resource location information of the contention area, so that the D2D terminal can know the resource location where the contention area is located. Thereby, the resource location information of the contention area can be obtained through competition without conflicting with the transmission resources obtained through scheduling.

Based on the foregoing D2D resource allocation device side method embodiment, the D2D resource configuration information may further include any one of the following parameters or combinations.

(1) The D2D resource configuration information may further include: a duration of the D2D superframe.

Correspondingly, before generating the D2D resource configuration information, the D2D resource allocation device further determines the duration of the D2D superframe.

(2) The D2D resource configuration information may further include: resource location information of the non-contention area in the D2D superframe.

Correspondingly, before generating the D2D resource configuration information, the D2D resource allocation device further determines a non-contention area in the D2D superframe.

Preferably, the D2D resource allocation device acquires resource location information of the non-contention area in the D2D superframe determined by the neighboring D2D resource allocation device; the D2D resource allocation device determines the D2D superframe according to the acquired resource location information of the non-contention zone. The non-contention area in the D2D superframe determined by the D2D resource allocation device is orthogonal to the non-contention area determined by the neighboring D2D resource allocation device in the time domain or the frequency domain.

If the D2D resource configuration information includes the resource location information of the non-contention area in the D2D superframe, the (3) case and the D2D resource configuration information may further include: a number of layers of the non-contention area, where the number of layers is the initial layer number .

If the D2D resource configuration information includes the resource location information of the non-contention area in the D2D superframe, the (4) case and the D2D resource configuration information may further include: the subchannel division information of the non-contention zone.

(5) If the D2D allocation device is a network side device, the D2D resource configuration information may further include: D2D subframe configuration information.

(6) If the D2D resource allocation device is a D2D terminal that is a cluster head, the D2D resource configuration information may further include: resource location information of the R-REQ region in the D2D superframe.

(7) The D2D resource configuration information may further include: subchannel division information of the contention area.

The specific implementation manner of the method for transmitting the D2D resource allocation device to the D2D terminal may be, if the D2D resource allocation device is the network side device, the D2D resource allocation device may send the D2D resource configuration information to the D2D terminal. The network side device sends a system broadcast message to the D2D terminal, where the system broadcast message carries D2D resource configuration information.

The specific implementation manner of the method for transmitting the D2D resource allocation device to the D2D terminal may be performed by the D2D resource allocation device, if the D2D resource allocation device is the D2D terminal as the cluster head. Yes: The D2D terminal as the cluster head transmits D2D resource configuration information to other D2D terminals in the subframe in which the beacon information is located.

The D2D resource allocation device may further receive a resource scheduling request sent by the D2D terminal, and send scheduling information to the D2D terminal, where the scheduling information is used to indicate that the D2D terminal is allocated, according to any one of the D2D resource allocation device side method embodiments. A transmission resource that is in a non-contention area in the D2D superframe. Preferably, if the D2D resource allocation device is a D2D terminal as a cluster head, the D2D terminal as a cluster head receives a resource scheduling request sent by another D2D terminal, and transmits scheduling information in a subframe in which the beacon information of the D2D superframe is located. Preferably, if The D2D resource allocation device is a network side device, and the network side device receives the resource scheduling request sent by the D2D terminal, and sends scheduling information to the D2D terminal through the downlink control channel.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a D2D terminal, including:

a resource configuration information receiving module, configured to receive D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in a D2D superframe, where the D2D superframe is composed of D2D subframes in a duration thereof;

a resource configuration information generating module, configured to generate new D2D resource configuration information according to the D2D resource configuration information received by the resource configuration information receiving module, where the generated D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The resource configuration information sending module is configured to: after obtaining the transmission resource, send the generated D2D resource configuration information by using the obtained transmission resource.

After receiving the D2D resource configuration information, the D2D terminal provided by the embodiment of the present invention generates new D2D resource configuration information according to the D2D resource configuration information and sends the D2D resource configuration information. The resource location information of the contention area is included in the D2D resource configuration information, so that the D2D terminal can obtain the resource location where the contention zone is located, so that the resource location information of the contention zone can be obtained through contention without conflict with the transmission resource obtained through the scheduling.

Preferably, when the generated D2D resource configuration information is sent by using the obtained transmission resource, the resource configuration information sending module is configured to:

When data transmission is required, the generated D2D resource configuration information and the data to be transmitted are transmitted through the acquired transmission resource.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module further includes: a duration of the D2D superframe;

The D2D resource configuration information generated by the resource configuration information generating module further includes: a duration of the D2D superframe.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module further includes: resource location information of a non-contention area in the D2D superframe;

The D2D resource configuration information generated by the resource configuration information generating module further includes: resource location information of a non-contention area in the D2D superframe.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module further includes: a number of layers of the non-contention area;

The D2D resource configuration information generated by the resource configuration information generating module further includes: a number of layers of the non-contention area, where the number of layers is the number of layers of the non-competition area in the D2D resource configuration information received by the D2D terminal plus one The minimum of the value result and the predetermined maximum number of levels threshold.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module further includes: subchannel division information of the non-contention area;

The D2D resource configuration information generated by the resource configuration information generating module further includes: a subchannel mapping of the non-competition area Sub-information.

Preferably, if the resource configuration information receiving module receives the D2D resource configuration information sent by the network side device, the D2D resource configuration information further includes: D2D subframe configuration information;

The D2D resource configuration information generated by the resource configuration information generating module further includes: D2D subframe configuration information.

Preferably, if the resource configuration information receiving module receives the D2D resource configuration information sent by the D2D terminal as a cluster head, the D2D resource configuration information further includes: resource location information of the R-REQ region in the D2D superframe. ;

The D2D resource configuration information generated by the resource configuration information generating module further includes: resource location information of the R-REQ region in the D2D superframe.

Preferably, the D2D resource configuration information received by the D2D terminal further includes: subchannel division information of the contention area;

The generated D2D resource configuration information further includes: subchannel division information of the contention area.

Preferably, the resource configuration information receiving module is specifically configured to:

Receiving a system broadcast message sent by the network side device, where the system broadcast message carries the D2D resource configuration information.

Receiving D2D resource configuration information sent by the D2D terminal as a cluster head in a subframe in which the beacon information is located.

Preferably, the method further includes a transmission resource acquisition module:

Before the resource configuration information sending module sends the generated D2D resource configuration information by using the obtained transmission resource, the transmission resource acquiring module is configured to determine a contention region of the D2D super frame according to the received D2D resource configuration information; Area, acquiring transmission resources in a competitive manner; or,

Before the resource configuration information sending module sends the generated D2D resource configuration information by using the obtained transmission resource, the transmission resource acquiring module is configured to request resource scheduling from the network side device or the D2D terminal as a cluster head, according to the network side device or The scheduling information sent by the D2D terminal of the cluster head acquires the transmission resource of the non-contention area in the D2D superframe.

Based on the same inventive concept as the method, the embodiment of the present invention further provides another D2D terminal, including a processor. The processor is configured to receive D2D resource configuration information, the D2D resource configuration information includes resource location information of a contention region in a D2D superframe, the D2D superframe is composed of D2D subframes within its duration; according to the received D2D The resource configuration information is used to generate new D2D resource configuration information, and the generated D2D resource configuration information includes resource location information of the contention area in the D2D superframe. After the transmission resource is obtained, the generated D2D resource configuration information is sent through the obtained transmission resource.

After receiving the D2D resource configuration information, the D2D terminal provided by the embodiment of the present invention generates new D2D resource configuration information according to the D2D resource configuration information and sends the D2D resource configuration information. The resource location information of the contention area is included in the D2D resource configuration information, so that the D2D terminal can obtain the resource location where the contention zone is located, so that the competition zone can be obtained through competition. Resource location information without conflicting with transmission resources obtained through scheduling.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a D2D resource allocation device, including:

a superframe structure determining module, configured to determine a contention region in the D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

a resource configuration information generating module, configured to generate D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The resource configuration information sending module is configured to send the D2D resource configuration information to the D2D terminal.

The D2D resource configuration information generated and transmitted by the D2D resource allocation device provided by the embodiment of the present invention includes the resource location information of the contention area, so that the D2D terminal can obtain the resource location where the contention zone is located, so that the resource location information of the contention zone can be obtained through competition. Without conflicting with the transmission resources obtained through scheduling.

Preferably, the superframe structure determining module is further configured to:

Determining a duration of the D2D superframe, where the D2D resource configuration information further includes a duration of the D2D superframe.

Determining a non-contention area in the D2D superframe, where the D2D resource configuration information further includes: resource location information of a non-contention area in the D2D superframe.

Preferably, the D2D resource configuration information further includes: a number of layers of the non-contention area, where the number of layers is an initial layer number.

Preferably, the D2D resource configuration information further includes: subchannel division information of the non-contention area.

The superframe structure determining module is specifically configured to: acquire an adjacent D2D resource allocation device, where the non-contention area is included in the D2D resource configuration information, and the non-contention area in the D2D superframe is determined. Determining the resource location information of the non-contention area in the D2D superframe; determining the non-contention zone in the D2D superframe according to the acquired resource location information of the non-contention zone, the D2D super determined by the D2D resource allocation device The non-contention area in the frame is orthogonal to the non-contention area determined by the adjacent D2D resource allocation device in the time domain or the frequency domain.

Preferably, if the D2D distribution device is a network side device, the D2D resource configuration information further includes: D2D subframe configuration information.

Preferably, if the D2D resource allocation device is a D2D terminal as a cluster head, the D2D resource configuration information further includes resource location information of an R-REQ region in the D2D superframe.

Preferably, the D2D resource configuration information further includes: subchannel division information of the contention area.

Preferably, if the D2D resource allocation device is a network side device, the resource configuration information sending module is specifically configured to:

Sending a system broadcast message to the D2D terminal, where the system broadcast message carries the D2D resource configuration information.

Preferably, if the D2D resource allocation device is a D2D terminal that is a cluster head, the resource configuration information sending module is specifically configured to:

The D2D resource configuration information is transmitted to other D2D terminals in the subframe in which the beacon information is located.

Preferably, the method further includes a resource scheduling module, configured to receive a resource scheduling request sent by the D2D terminal, and send scheduling information to the D2D terminal, where the scheduling information is used to indicate a transmission resource allocated to the D2D terminal, where the transmission resource is A non-contention area in the D2D superframe.

Based on the same inventive concept as the method, the embodiment of the present invention further provides another D2D resource allocation device, including a processor. The processor is configured to determine a contention region in the D2D superframe, the D2D superframe being composed of D2D subframes within its duration; generating D2D resource configuration information, the D2D resource configuration information including contention in the D2D superframe Resource location information of the area; sending the D2D resource configuration information to the D2D terminal.

DRAWINGS

FIG. 1 is a flowchart of a method according to an embodiment of the present invention;

2 is a schematic diagram of a first D2D superframe according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a second D2D superframe according to an embodiment of the present disclosure;

4 is a schematic diagram of a time division multiplexing subchannel division manner according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a frequency division multiplexing subchannel division manner according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a time division and frequency division hybrid multiplexing subchannel division manner according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a third D2D superframe according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a fourth D2D superframe according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a fifth D2D superframe according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of an application scenario according to an embodiment of the present disclosure;

FIG. 11 is a flowchart of another method according to an embodiment of the present invention;

12 to FIG. 16 are schematic diagrams of another five application scenarios according to an embodiment of the present invention;

FIG. 17 is a schematic diagram of a D2D terminal according to an embodiment of the present invention;

FIG. 18 is a schematic diagram of a D2D resource allocation device according to an embodiment of the present invention.

detailed description

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , a method for transmitting D2D resource configuration information on a D2D terminal side according to an embodiment of the present invention includes the following operations:

Step 100: The D2D terminal receives D2D resource configuration information, where the D2D resource configuration information indicates a structure of the D2D superframe, and at least includes resource location information of a contention area in the D2D superframe.

In the embodiment of the present invention, the D2D superframe is composed of D2D subframes within its duration. Assume that the duration of the D2D superframe is 100. Milliseconds (ms). If the D2D resource is allocated by the network side device, and the D2D subframe is configured to be 10 ms period, subframe 3, and subframe 8, then one D2D superframe is composed of subframe 3 and subframe 8 within 100 ms (a total of 20 D2D subframes) ) constitutes. If a D2D resource is allocated by a D2D terminal as a cluster head, each subframe is a D2D subframe, and one D2D superframe is composed of 100 subframes within 100 ms.

The contention area occupies part of the resources in the D2D superframe. The D2D terminal acquires transmission resources of the contention area through a contention manner. A plurality of D2D terminals use the same criteria to contend for transmission resources, for example, the resource consuming multiple access/collision avoidance (CSMA/CA) mode occupies resources. .

The contention area and other areas divided in the D2D superframe may be time division multiplexed (TDM), frequency division multiplexed (FDM), or time division, frequency division hybrid multiplex. If time division multiplexing is used, the resource location information of the contention area may be the information of the D2D subframe occupied by the contention area; if frequency division multiplexing is used, the resource location information of the contention area may be a physical resource block (PRB) occupied by the contention area. information.

Step 110: The D2D terminal generates new D2D resource configuration information according to the received D2D resource configuration information, where the generated D2D resource configuration information includes resource location information of a contention area in the D2D superframe.

If the D2D terminal receives a D2D resource configuration information within a predetermined time, the resource location information of the contention area in the D2D superframe in the generated D2D resource configuration information includes the contention in the D2D superframe included in the received D2D resource configuration information. Resource location information for the zone.

If the D2D terminal receives the plurality of D2D resource configuration information within the predetermined time, the generated resource information of the contention area in the D2D superframe included in the generated D2D resource configuration information is all received according to the D2D terminal within the predetermined time. The D2D resource configuration information includes the resource location information of the contention area in the D2D superframe included.

For example, if two D2D resource configuration information is received within a predetermined time, one D2D resource configuration information indicates that the contention area occupies the first to third D2D subframes of the D2D superframe, and another D2D resource configuration information indicates that the contention area is occupied. The first to fifth D2D subframes of the D2D superframe, the resource location information of the contention zone in the D2D superframe included in the generated D2D resource configuration information may be the first to third D2D subframes that occupy the D2D superframe. information. For example, if two D2D resource configuration information are received within a predetermined time, one D2D resource configuration information indicates that the contention area occupies the first to third D2D subframes of the D2D superframe, and indicates the 4th to 6th D2D subframes. It is divided into other areas, and the other D2D resource configuration information indicates that the contention area occupies the 4th to 6th D2D subframes of the D2D superframe, and then the generated D2D resource configuration information includes the resource location information of the contention area in the D2D superframe. It may be information indicating the first to third D2D subframes occupying the D2D superframe.

It should be noted that the parameters carried in the D2D resource configuration information generated by the D2D terminal may also have other determination manners, which may be determined according to the requirements of the actual application scenario, and the present invention is not limited thereto.

Step 120: After obtaining the transmission resource, the D2D terminal sends the generated D2D resource configuration information through the obtained transmission resource.

According to the method provided by the embodiment of the present invention, after receiving the D2D resource configuration information, the D2D terminal generates new D2D resource configuration information according to the D2D resource configuration information and sends the D2D resource configuration information. The resource location information of the contention area is included in the D2D resource configuration information, so that the D2D terminal can obtain the resource location where the contention zone is located, so that the resource location information of the contention zone can be obtained through contention without conflict with the transmission resource obtained through the scheduling.

(1) If the duration of the D2D superframe is not pre-agreed, then the network side device or the D2D terminal as the cluster head determines the duration of the D2D superframe when determining the D2D superframe structure. Correspondingly, the D2D resource configuration information received by the D2D terminal may further include: a duration of the D2D superframe. The generated D2D resource configuration information may further include: a duration of the D2D superframe.

If different network side devices and/or D2D superframes determined by the D2D terminal as the cluster head have different durations, the D2D resource configuration information may be propagated or other manners may be used to obtain D2Ds of other network side devices or D2D terminal configurations configured as cluster heads. The duration of the superframe and the duration of the D2D superframe is negotiated.

The D2D resource configuration information received by the D2D terminal may further include: a duration of the D2D superframe.

(2) In the D2D superframe structure configured by the network side device or the D2D device as the cluster head, only the contention area may be included as the transmission resource of the D2D terminal. Further, the non-contention area may be divided in the D2D superframe structure, and the resources of the non-contention area are used by the D2D terminal to transmit data in a scheduling manner. Specifically, according to the resource scheduling request of the D2D terminal under management, whether to reserve a non-contention area and a size of the non-contention area may be determined. For the network side device, the preferred D2D superframe structure is divided into non-contention areas.

Among them, as shown in FIG. 2, the contention area and the non-competition area are divided by TDM.

As shown in Figure 3, the contention zone and the non-competition zone are divided by FDM.

When the D2D superframe structure includes the non-contention area, the D2D resource configuration information received by the D2D terminal further includes: resource location information of the non-contention area in the D2D superframe; and the generated D2D resource configuration information further includes: the D2D superframe Resource location information for the competition area.

If the D2D resource configuration information is received within the predetermined time, the resource location information of the non-contention area in the D2D superframe included in the generated D2D resource configuration information may be the D2D superframe included in the received D2D resource configuration information. Resource location information for non-competitive areas. If a plurality of D2D resource configuration information is received within a predetermined time, the generated resource information of the non-contention area in the D2D superframe included in the generated D2D resource configuration information is D2D included according to all D2D resource configuration information received within a predetermined time. The resource location information of the non-competition area in the superframe is determined. For example, two D2D resource configuration information are received within a predetermined time, and it is assumed that the resource location information of the non-contention area in the D2D superframe included in one D2D resource configuration information indicates that it occupies the last 10 D2Ds in the D2D superframe. The subframe, the resource location information of the non-contention area in the D2D superframe included in the other D2D resource configuration information indicates that it occupies the last 12 D2D subframes in the D2D superframe. Then, the resource location information of the non-contention area in the D2D superframe included in the generated D2D resource configuration information may be information indicating that the last 12 D2D subframes occupying the D2D superframe are occupied. For another example, two D2D resource configuration information is received within a predetermined time, and it is assumed that the resource location information of the non-contention area in the D2D superframe included in one D2D resource configuration information indicates that it occupies the last 10 D2D subframes in the D2D superframe. The resource location information of the non-contention area in the D2D superframe included in the other D2D resource configuration information indicates that it occupies the inverse 11th to the 30th D2D subframe in the D2D superframe. Then, the resource location information of the non-contention area in the D2D superframe included in the generated D2D resource configuration information may be information indicating that the last 30 D2D subframes of the D2D superframe are occupied.

If the D2D resource configuration information includes the resource location information of the non-contention area in the D2D superframe, the D2D resource configuration information received by the D2D terminal may also include: the number of layers of the non-contention area; the generated D2D The resource configuration information may further include: a number of layers of the non-contention area, where the number of layers is a value of the number of layers of the non-contention area plus one in the D2D resource configuration information received by the D2D terminal, and a minimum of the predetermined maximum number of layers threshold value.

If one D2D resource configuration information is received within a predetermined time, the number of layers in the generated D2D resource configuration information is the value of the number of layers of the non-contention area plus one in the received D2D resource configuration information, and the predetermined maximum layer. The minimum of the number of thresholds. If a plurality of D2D resource configuration information is received within a predetermined time, the number of layers in the generated D2D resource configuration information is a result of adding 1 to the number of layers of the non-contention area in the received plurality of D2D resource configuration information, and a predetermined value. The smallest of the maximum number of levels threshold.

If the number of layers in the non-competition area reaches the maximum layer threshold, it indicates that the non-contention area is far away from the network side device or the cluster head that allocates the D2D resource, and then the non-contention area is occupied for competing transmission resources, and the scheduling transmission is not performed. Interference occurs, or the resulting interference is within the allowable range. Therefore, if the number of layers of the non-contention area in the received D2D resource configuration information reaches the maximum layer threshold, the non-contention area may be used as the contention area. Correspondingly, the resource location information of the non-contention area may also be used as the resource location information of the contention area included in the generated D2D resource configuration information.

Further, if the resource location occupied by the non-contention area in the multiple D2D resource configuration information received in the predetermined time is different, in order to make the indication of the number of layers more accurate, the minimum resource granularity occupied by the non-competition area may be pre-defined, and the minimum resource size is used. The resource granularity is the number of layers indicating the non-competition area. Specifically, the channel division manner in the non-competition area may be TDM division, which may be FDM division, or may be a division manner of TDM+FDM.

Taking the TDM division as an example, it is assumed that two D2D resource configuration information is received within a predetermined time. The non-contention area in the D2D superframe included in one D2D resource configuration information occupies the last 10 D2D subframes of the D2D superframe, and the non-contention area in the D2D superframe included in the other D2D resource configuration information occupies the last of the D2D superframe 12 D2D subframes. The durations of the two D2D superframes are the same, the number of layers in the first non-contention area is 1, the number of layers in the second non-contention area is 2, the maximum layer threshold is 3, and the minimum resource granularity occupied by the non-contention area is 2 D2D subframes. Then, the number of layers of the non-contention area in the D2D subframe included in the generated D2D resource configuration information is in units of minimum resource granularity. Line instructions. For example, the number of layers of the non-contention area corresponding to the 11th and 12th D2D subframes is 3; the number of layers of the non-contention area corresponding to the last 10 D2D subframes is 2, or the non-competition corresponding to the last 10 D2D subframes Each of the two D2D subframes in the area corresponds to one layer 2 .

Taking the FDM division as an example, it is assumed that two D2D resource configuration information are received within a predetermined time. The non-contention area in the D2D superframe included in one D2D resource configuration information occupies the PRB of the D2D superframe numbered from 0 to 9, and the non-contention area in the D2D superframe included in the other D2D resource configuration information occupies the D2D superframe. PRBs numbered 0-11. The number of layers in the first non-contention area is 1, the number of layers in the second non-contention area is 2, the threshold of the maximum layer is 3, and the minimum resource granularity occupied by the non-contention area is 2 PRBs. Then, the number of layers of the non-contention area in the D2D subframe included in the generated D2D resource configuration information is indicated in units of minimum resource granularity. For example, the number of layers of the non-contention area corresponding to the PRBs numbered 10 and 11 is 3; the number of layers of the non-contention area corresponding to the PRBs numbered 0 to 9 is 2, or the non-competition corresponding to the PRBs numbered 0-9 Each of the two PRBs in the area corresponds to one layer 2 .

In addition, the number of layers in the generated D2D resource configuration information may be updated according to the D2D resource configuration information received in one or more D2D superframe periods.

If the D2D resource configuration information includes the resource location information of the non-contention area in the D2D superframe, the D2D resource configuration information received by the D2D terminal may further include: subchannel division information of the non-contention area; The D2D resource configuration information may further include: subchannel division information of the non-contention area.

The non-contention area in the D2D superframe can be time division multiplexed. As shown in FIG. 4, frequency division multiplexing can also be used. As shown in FIG. 5, time division and frequency division hybrid multiplexing can also be used, as shown in FIG. 6.

If the channels in the non-contention area in the D2D superframe are frequency division multiplexed, the subchannels are divided in units of PRBs. If the channels in the non-contention area in the D2D superframe are time division multiplexed, the subchannels are divided in units of D2D subframes.

Of course, the information of the subchannel division can also be predefined.

For a non-contention area, since the transmission of the D2D link of the terminal is scheduled by the network side device or the CH, the division information of the subchannel may not be required, and the FDM multiplexing, TDM multiplexing or TDM is adopted. +FDM multiplexing depends entirely on the scheduling of the network side device or CH.

(5) As described above, the D2D superframe is composed of D2D subframes within its duration. If the D2D resource is allocated by the network side device, the D2D resource configuration information received by the D2D terminal further includes: D2D subframe configuration information. The generated D2D resource configuration information further includes: D2D subframe configuration information.

The D2D subframe configuration information may be, but is not limited to, a period including a D2D subframe, an occupied subframe number or a subframe offset, and the like.

For a specific implementation manner of the D2D subframe configuration information included in the generated D2D resource configuration information, refer to the description of the foregoing embodiment, and details are not described herein.

If a D2D resource is allocated by a D2D terminal as a cluster head, each subframe is a D2D subframe, therefore, D2D The D2D subframe configuration information does not need to be carried in the resource configuration information.

(6) For the case where the cluster head allocates the D2D resource, the D2D superframe structure may include an R-REQ area, and the D2D UE used for the CH coverage sends the resource request information. The resource request information needs to include at least a D2D link Buffer Status Report (BSR) to assist the CH in allocating resources. If the R-REQ region is time-division multiplexed with other regions in the D2D superframe structure, the corresponding D2D superframe structure may be as shown in FIG. 7. If the R-REQ region is frequency-multiplexed with other regions in the D2D superframe structure, The corresponding D2D superframe structure can be as shown in FIG. Of course, as shown in FIG. 9, the frequency division multiplexing between the contention area and the non-contention area may be performed, and the R-REQ area is time division multiplexed with the contention area and the non-contention area.

For the R-REQ area, a better way is to reuse TDM in the competitive and non-competitive areas.

The FDM multiplexing mode can be adopted between the R-REQ channels in the R-REQ area. The bandwidth of the R-REQ channel may be configured or predefined. For example, the bandwidth of the fixed R-REQ channel is M PRBs. Certainly, the TDM multiplexing mode may be adopted between the R-REQ channels in the R-REQ area, and the number of D2D subframes occupied by each R-REQ may be configured or predefined. Time division and frequency division hybrid multiplexing can also be adopted between R-REQ channels in the R-REQ area.

In addition, for the case where the cluster head allocates D2D resources, the D2D superframe structure may not include the R-REQ region, but at this time, all resource occupation requests are generated by competing in the competition area, usually R The -REQ message is relatively small. If the data is placed in the contention area for contention transmission, the efficiency will be lower, so this method is not recommended.

For the case of network side device coverage, the D2D UE may request resources according to a scheduling request (SR)/BSR reporting mechanism of a cellular link. Therefore, the R-REQ channel can be eliminated.

Then, if the cluster head allocates the D2D resource, the received D2D resource configuration information may further include: resource location information of the R-REQ area in the D2D superframe; and the generated D2D resource configuration information may further include: in the D2D superframe Resource location information of the R-REQ area.

For a specific implementation manner of the resource location information of the R-REQ area in the D2D superframe included in the generated D2D resource configuration information, refer to the description of the foregoing embodiment, and details are not described herein.

(7) The channel in the contention zone in the D2D superframe may adopt a frequency division multiplexing mode, a time division multiplexing mode, or a time division and frequency division hybrid multiplexing mode. For a detailed description thereof, reference may be made to the description of the above (4) case, and details are not described herein again. Correspondingly, the D2D resource configuration information received by the D2D terminal may further include: sub-channel allocation information of the contention area; and the generated D2D resource configuration information may further include: sub-channel division information of the contention area.

The D2D terminal receives the D2D resource configuration information, and the D2D terminal receives the D2D resource configuration information, and the D2D terminal receives the network side device, if the D2D resource is allocated by the network side device. The system broadcast message is sent, and the system broadcast message carries D2D resource configuration information. Of course, the D2D terminal can also receive the dedicated signaling of the D2D terminal sent by the network side device, where the dedicated signaling carries the D2D resource configuration information.

If the D2D resource is allocated by the cluster head, the D2D terminal may receive the D2D resource configuration information. The D2D terminal receives the D2D resource configuration information sent by the D2D terminal as the cluster head in the subframe where the beacon information is located. Optionally, the D2D resource configuration information may be transmitted on a control channel in a subframe where the beacon information is located.

Based on any of the foregoing D2D terminal side method embodiments, preferably, the D2D terminal acquires the transmission resource before transmitting the generated D2D resource configuration information by using the obtained transmission resource. For a D2D terminal within a coverage of a cell or a cluster head, a transmission resource may be acquired from a contention area, or a transmission resource may be acquired from a non-contention area. For D2D terminals outside the coverage of cells and cluster heads, transmission resources can only be obtained from the contention area. As shown in FIG. 10, the TDM division of each area in the D2D superframe structure is taken as an example, the Contention part is a contention area, and the Contention free part is a non-contention area. Since the UE 2 cannot receive the scheduling information of the CH outside the coverage of the cluster head (CH), the UE 2 transmits in the contention area. UE1 can transmit either in the contention zone or in the non-contention zone.

If the transmission resource is obtained from the contention area, the D2D terminal determines the contention area of the D2D superframe according to the received D2D resource configuration information; in the contention area, the transmission resource is obtained in a competitive manner.

If the D2D terminal receives a D2D resource configuration information within a predetermined time, the D2D terminal determines that the contention area of the D2D superframe is a contention area included in the D2D resource configuration information; optionally, if the D2D resource configuration information is included The difference between the number of layers of the non-contention area in the included D2D superframe and the initial layer number is not less than 2 (or the number of layers reaches the maximum layer threshold), and the D2D terminal may also determine the D2D superframe included in the D2D resource configuration information. Non-competitive areas are the competitive areas available to them.

If the D2D terminal receives multiple D2D resource configuration information within a predetermined time, the D2D terminal may determine the available contention area according to the manner of generating new D2D resource configuration information; optionally, if there are non-competition areas The difference between the number of layers indicated in each received D2D resource configuration information and the initial layer number is not less than 2 (or the number of layers reaches the maximum layer threshold), and the D2D terminal may also determine that the non-contention area is available. Competitive area. That is to say, if the number of layers of the non-contention area in the D2D resource configuration area is the maximum layer number threshold or the difference from the initial layer number is not less than 2, then it can be considered that the area is a contention area.

If the transmission resource is obtained from the non-contention area, the D2D terminal requests the resource scheduling from the network side device or the D2D terminal as the cluster head, and acquires the non-competition in the D2D super frame according to the scheduling information sent by the network side device or the D2D terminal as the cluster head. The transmission resource of the area.

If it is a network side device scheduling, it schedules transmission resources of the D2D UE on the D2D link through a downlink control channel (eg, a Physical Downlink Control Channel (PDCCH)/Enhanced Physical Downlink Control Channel (EPDCCH)).

If it is CH scheduling, it can indicate the location of the resource occupied by the non-contention area and the corresponding modulation and coding mode by the subframe where the beacon information is located. The resource location occupied by the non-contention area and the corresponding modulation and coding mode may also be indicated by a dedicated control channel in the D2D superframe.

For D2D terminals within the coverage of a cell or cluster head, the choice of obtaining transmission resources from a contention zone or a non-contention zone depends on the communication requirements. For example, if it is necessary to improve the robustness of the network, the transmission resources can be obtained from the contention area in a competitive manner. If you need to improve the utilization of resources, you can use the scheduling method to obtain transmission resources from the contention area.

The method for transmitting the D2D resource configuration information on the D2D resource allocation device side is as shown in FIG. 11 , and specifically includes the following operations:

Step 1100: The D2D resource allocation device determines a contention area in the D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

Step 1110: The D2D resource allocation device generates D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe.

Step 1120: The D2D resource allocation device sends the D2D resource configuration information to the D2D terminal.

For the D2D resource allocation device side, the method is the same or similar to the D2D terminal side. The specific implementation manner can refer to the description of the D2D terminal side method embodiment, and details are not described herein.

If the D2D resource allocation device is a network side device, the resource location information of the non-contention area determined by the neighboring network side device may be acquired through the X2 interface. If the D2D resource allocation device is a D2D terminal that is a cluster head, it can acquire resource location information of a non-contention area determined by other cluster heads or network side devices through a D2D link.

Taking two adjacent cluster heads CH1 and CH2 as an example, UE1 and UE2 can transmit their respective contention areas and non-contention areas. After resource negotiation, the non-contention areas of CH1 and CH2 are respectively in the time domain or the frequency domain. Shangzheng Cross, as shown in Figure 12. Among them, contention free 1 is a non-competitive area of CH1, and contention free 2 is a non-competitive area of CH2. UE1 tries to avoid transmission in contention free 2 during transmission, and UE2 tries to transmit as much as possible. Avoid transmission in contention free 1. Contention is a competitive area.

The D2D resource allocation device may further receive a resource scheduling request sent by the D2D terminal, and send scheduling information to the D2D terminal, where the scheduling information is used to indicate that the D2D terminal is allocated, according to any one of the D2D resource allocation device side method embodiments. A transmission resource that is in a non-contention area in the D2D superframe. Preferably, if the D2D resource allocation device is a D2D terminal as a cluster head, the D2D terminal as a cluster head receives a resource scheduling request sent by another D2D terminal, and transmits scheduling information in a subframe in which the beacon information of the D2D superframe is located. Preferably, if the D2D resource allocation device is a network side device, the network side device receives the resource scheduling request sent by the D2D terminal, and sends scheduling information to the D2D terminal through the downlink control channel.

The application scenario shown in FIG. 13 is taken as an example, where UE1 is within the coverage of the eNB, and UE2 is outside the coverage of the eNB.

The eNB broadcasts the D2D resource configuration information 1 through the system, including the D2D superframe structure information, and includes the configuration information of the D2D subframe in the D2D superframe structure information, and the resource location information of the contention area and the non-contention area in the D2D superframe. The selected configuration information including the subchannels in the contention area.

If UE1 needs to transmit D2D link, it has two ways of transmission:

One is that the resource transmission can be occupied directly through the contention zone according to the competition mechanism defined in the competition zone, such as energy detection and CSMA/CA. This situation is equivalent to the fact that the potential UE1 can transmit without entering the Radio Resource Management (RRC) connection state, that is, it can support both the RRC connection state and the RRC idle state.

Another way is to transmit through the non-contention area. If the UE1 is in the RRC idle state, the UE1 first enters the RRC connection state through the random process of the cellular link, and then sends the resource scheduling request and the BSR to the eNB through the SR/BSR. The eNB schedules the UE1 according to the resource scheduling request of the UE1, and the scheduling information is indicated to the UE1 by the PDCCH/EPDCCH of the cellular link. If the UE1 is in the RRC connected state, the UE1 does not need to go through a random access channel (RACH) procedure, and may directly send a resource scheduling request and a BSR to the eNB through the SR/BSR. The eNB schedules the UE1 according to the resource scheduling request of the UE1, and the scheduling information is indicated to the UE1 by the PDCCH/EPDCCH of the cellular link.

The UE1 generates the D2D resource configuration information 2 according to the D2D resource configuration information 1, and the D2D resource configuration information 2 needs to include the superframe structure information in the resource configuration information 1. And carrying D2D resource configuration information 2 when it sends data.

The UE2 receives the D2D resource configuration information 2 sent by the UE1, so that the current superframe structure information can be obtained, and if the UE2 needs to perform data transmission, the UE2 can obtain the D2D resource configuration information according to the UE1. The contention area and the non-contention area information in the superframe structure defined in the data are transmitted in a competitive manner in the contention area. Similarly, when the UE2 sends data, it needs to carry the resource configuration information 3, wherein the resource configuration information 3 needs to include at least the superframe structure information of the D2D link in the resource configuration information 2.

Take the application scenario shown in Figure 14 as an example. The UE1 is within the coverage of the cluster head, and the UE2 is outside the coverage of the cluster head.

The CH broadcasts the D2D resource configuration information 1 in the subframe where the beacon is located, including the D2D superframe structure information, and includes the resource location information of the contention area and the non-competition area in the D2D superframe in the D2D superframe structure information, optionally including contention. Configuration information of subchannels in the area. Optionally, resource location information of the REQ area in the D2D superframe is also included.

If UE1 needs to transmit D2D link, it has two ways of transmission:

One is that the resource transmission can be occupied directly through the contention zone according to the competition mechanism defined in the competition zone, such as energy detection and CSMA/CA.

The other mode is that the UE1 first transmits a resource scheduling request to the CH through the R-REQ area, and the BSR report of the D2D link is included in the R-REQ area, and may optionally include a report of the channel status monitored by the UE1. The CH performs the scheduling according to the received resource scheduling request of the UE1, and instructs the UE1 to transmit the resources occupied in the non-contention area in the subframe where the beacon is located, and optionally includes the parameters related to the transmission attribute such as the modulation and coding scheme.

The UE1 generates D2D resource configuration information 2 according to the D2D resource configuration information 1, and needs to be configured in the D2D resource configuration information 2. The superframe structure information in the D2D resource configuration information 1 is to be included. And carrying D2D resource configuration information 2 when it sends data.

The UE2 receives the D2D resource configuration information 2 sent by the UE1, so that the current superframe structure information can be obtained, and if the UE2 needs to perform data transmission, the UE2 can obtain the D2D resource configuration information sent by the UE1 according to the UE 2 The contention area and the non-contention area information in the superframe structure defined in the data are transmitted in a competitive manner in the contention area. Similarly, when the UE2 sends data, it needs to carry the D2D resource configuration information 3, wherein the D2D resource configuration information 3 needs to include at least the D2D superframe structure information in the D2D resource configuration information 2.

The application scenario shown in FIG. 15 is taken as an example, where UE1 is within the coverage of the cluster head, and UE2 and UE3 are outside the coverage of the cluster head.

The number of layers of the non-contention area in the D2D resource configuration information 1 transmitted by the eNB or the CH is 1 (of course, the initial layer number may also be other values), and the corresponding UE1 is located in the network coverage, and the D2D resource configuration information 2 is sent. The number of layers in the China-Africa competition area is 2, and the UE2 is located outside the network coverage. The number of non-contention areas in the D2D resource configuration information 3 sent by the UE2 is 3. Assume that the maximum number of levels is 3.

For UE3, it can simultaneously receive the D2D resource configuration information sent by UE1 and UE2, which includes the number of layers of different non-contention areas, and then UE3 follows the minimum number of layers received (the number of layers of UE1) and the maximum. The layer threshold determines the number of layers of non-contention areas in the generated D2D resource configuration information, which is min (minimum number of layers +1, maximum number of layers threshold).

The application scenario shown in FIG. 16 is taken as an example, in which UE1 is within the coverage of the cluster head, and UE2 and UE3 are outside the coverage of the cluster head.

Assuming that the 2-hop range is out, the co-channel interference between users is relatively small. Correspondingly, the resources of the non-competition area after 2 hops can be considered to be reused. Then, according to the layer information of the non-competition area, at the location of UE3, The resources of the non-competition area defined by CH can be reused in UE3. The layer information corresponding to the non-contention area in the D2D resource configuration information 3 transmitted by the UE2 is 3, and the layer information of the non-contention area (the layer information is 1) transmitted by the CH, and the difference between them is not less than 2. . Thus UE3 can consider this part of the area to be reused.

Since the co-channel interference between users is small due to the 2-hop range, the maximum layer threshold can also be determined as the initial layer number + 2.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a D2D terminal, as shown in FIG. 17, comprising:

The resource configuration information receiving module 1701 is configured to receive D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in a D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

The resource configuration information generating module 1702 is configured to generate new D2D resource configuration information according to the D2D resource configuration information received by the resource configuration information receiving module 1701, where the generated D2D resource configuration information is included in the D2D superframe. Resource location information of the competition area;

The resource configuration information sending module 1703 is configured to: after obtaining the transmission resource, send the generated D2D resource configuration information by using the obtained transmission resource.

Preferably, when the generated D2D resource configuration information is sent by using the obtained transmission resource, the resource configuration information sending module 1703 is configured to:

Preferably, the D2D resource configuration information received by the resource configuration information receiving module 1701 further includes: a duration of the D2D superframe;

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes: a duration of the D2D superframe.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module 1701 further includes: resource location information of a non-contention area in the D2D superframe;

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes resource location information of a non-contention area in the D2D superframe.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module 1701 further includes: a number of layers of the non-contention area;

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes: a number of layers of the non-contention area, where the number of layers is the number of layers of the non-competition area in the D2D resource configuration information received by the D2D terminal plus one The value of the result and the minimum of the predetermined maximum number of layers threshold.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module 1701 further includes: subchannel division information of the non-contention area;

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes: subchannel division information of the non-contention area.

Preferably, if the resource configuration information receiving module 1701 receives the D2D resource configuration information sent by the network side device, the D2D resource configuration information further includes: D2D subframe configuration information;

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes: D2D subframe configuration information.

Preferably, if the resource configuration information receiving module 1701 receives the D2D resource configuration information sent by the D2D terminal as a cluster head, the D2D resource configuration information further includes: a resource bit of the R-REQ area in the D2D superframe. Set information

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes: resource location information of the R-REQ region in the D2D superframe.

Preferably, the D2D resource configuration information received by the resource configuration information receiving module 1701 further includes: subchannel division information of the contention area;

The D2D resource configuration information generated by the resource configuration information generating module 1702 further includes: subchannel division information of the contention area.

Preferably, the resource configuration information receiving module 1706 is specifically configured to:

Based on the same inventive concept as the method, the embodiment of the present invention further provides another D2D terminal, including a processor. The processor is configured to receive D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe, where the D2D superframe is composed of D2D subframes within its duration; The D2D resource configuration information generates new D2D resource configuration information, and the generated D2D resource configuration information includes resource location information of the contention area in the D2D superframe; and after the transmission resource is obtained, the generated D2D resource configuration is transmitted through the obtained transmission resource. information.

Preferably, the processor sends the generated D2D resource configuration information and the data to be sent through the acquired transmission resource when data transmission is required.

Preferably, the D2D resource configuration information received by the processor further includes: a duration of the D2D superframe;

The D2D resource configuration information generated by the processor further includes: a duration of the D2D superframe.

Preferably, the D2D resource configuration information received by the processor further includes: resource location information of the non-contention area in the D2D superframe;

The D2D resource configuration information generated by the processor further includes: resource location information of the non-contention area in the D2D superframe.

Preferably, the D2D resource configuration information received by the processor further includes: a number of layers of the non-contention area;

The D2D resource configuration information generated by the processor further includes: a number of layers of the non-contention area, where the number of layers is a value of the number of layers of the non-contention area plus 1 in the D2D resource configuration information received by the D2D terminal, and a predetermined value The smallest of the maximum number of levels threshold.

Preferably, the D2D resource configuration information received by the processor further includes: subchannel division information of the non-contention area;

The D2D resource configuration information generated by the processor further includes: subchannel division information of the non-contention area.

Preferably, if the processor receives the D2D resource configuration information sent by the network side device, the D2D resource configuration information further includes: D2D subframe configuration information;

The D2D resource configuration information generated by the processor further includes: D2D subframe configuration information.

Preferably, if the processor receives the D2D resource configuration information sent by the D2D terminal as a cluster head, the D2D resource configuration information further includes: resource location information of the R-REQ region in the D2D superframe;

The D2D resource configuration information generated by the processor further includes: resource location information of the R-REQ region in the D2D superframe.

Preferably, the D2D resource configuration information received by the processor further includes: subchannel division information of the contention area;

The D2D resource configuration information generated by the processor further includes: subchannel division information of the contention area.

Preferably, the processor receives the system broadcast message sent by the network side device, where the system broadcast message carries the D2D resource configuration information.

Preferably, the processor receives the D2D resource configuration information sent by the D2D terminal as the cluster head in the subframe where the beacon information is located.

Preferably, the processor determines the contention area of the D2D superframe according to the received D2D resource configuration information before transmitting the generated D2D resource configuration information by using the obtained transmission resource; and acquiring the transmission resource in a competitive manner in the contention area. ;or,

Before transmitting the generated D2D resource configuration information by using the obtained transmission resource, requesting resource scheduling from the network side device or the D2D terminal as the cluster head, and acquiring the D2D super frame according to the scheduling information sent by the network side device or the D2D terminal as the cluster head Transmission resources in non-competitive areas.

Based on the same inventive concept as the method, the embodiment of the present invention further provides a D2D resource allocation device, as shown in FIG. 18, which specifically includes:

a superframe structure determining module 1801, configured to determine a contention area in the D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

The resource configuration information generating module 1802 is configured to generate D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe.

The resource configuration information sending module 1803 is configured to send the D2D resource configuration information to the D2D terminal.

Preferably, the superframe structure determining module 1801 is further configured to:

Preferably, the superframe structure determining module 1801 is further configured to: determine a non-contention area in the D2D superframe, where the D2D resource configuration information further includes: resource location information of a non-contention area in the D2D superframe.

The superframe structure determining module 1801 is specifically configured to: acquire an adjacent D2D resource allocation, when the non-contention area in the D2D superframe is determined, where the D2D resource configuration information is included in the D2D resource configuration information. Resource location information of the non-contention area in the D2D superframe determined by the device; determining, according to the obtained resource location information of the non-contention zone, the non-contention zone in the D2D superframe, the D2D determined by the D2D resource allocation device The non-contention area in the superframe is orthogonal to the non-contention area determined by the adjacent D2D resource allocation device in the time domain or the frequency domain.

Preferably, the method further includes a resource scheduling module, configured to receive a resource scheduling request sent by the D2D terminal, and send scheduling information to the D2D terminal, where the scheduling information is used to indicate a transmission resource allocated to the D2D terminal, where the transmission The resource is in a non-contention area in the D2D superframe.

Based on the same inventive concept as the method, the embodiment of the present invention further provides another D2D resource allocation device, including a processor. The processor is configured to determine a contention region in the D2D superframe, the D2D superframe being composed of D2D subframes within its duration; generating D2D resource configuration information, the D2D resource configuration information including contention in the D2D superframe Area Resource location information of the domain, the D2D superframe is composed of D2D subframes within its duration; and the D2D resource configuration information is sent to the D2D terminal.

Preferably, the processor determines a duration of the D2D superframe, and the D2D resource configuration information further includes a duration of the D2D superframe.

Preferably, the processor determines a non-contention area in the D2D superframe, and the D2D resource configuration information further includes: resource location information of the non-contention area in the D2D superframe.

And determining, according to any embodiment of the D2D resource configuration information, the non-contention area, where the non-contention area in the D2D superframe is determined, acquiring the non-competition area in the D2D superframe determined by the neighboring D2D resource allocation device. a resource location information; determining, according to the obtained resource location information of the non-contention zone, a non-contention zone in the D2D superframe, the non-contention zone and the adjacent D2D resource in the D2D superframe determined by the D2D resource allocation device The non-contention areas determined by the distribution device are orthogonal in the time domain or the frequency domain.

Preferably, if the D2D resource allocation device is a network side device, the processor sends a system broadcast message to the D2D terminal, where the system broadcast message carries the D2D resource configuration information.

Preferably, if the D2D resource allocation device is a D2D terminal as a cluster head, the processor sends D2D resource configuration information to other D2D terminals in a subframe in which the beacon information is located.

Preferably, the processor receives a resource scheduling request sent by the D2D terminal, and sends scheduling information to the D2D terminal, where the scheduling information is used to indicate a transmission resource allocated for the D2D terminal, where the transmission resource is in the D2D super Non-competitive area in the frame.

In the embodiment of the present invention, the network side device may be, but is not limited to, an eNB, a normal base station (NB), and the like.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention may employ computer programs implemented on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied. The form of the product.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

A method for transmitting device-to-device D2D resource configuration information, comprising:

The D2D terminal receives D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in a D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

The D2D terminal generates new D2D resource configuration information according to the received D2D resource configuration information, where the generated D2D resource configuration information includes resource location information of a contention area in the D2D superframe.

After obtaining the transmission resource, the D2D terminal sends the generated D2D resource configuration information through the obtained transmission resource.
The method according to claim 1, wherein the D2D terminal sends the generated D2D resource configuration information by using the obtained transmission resource, including:

When the data transmission needs to be performed, the D2D terminal sends the generated D2D resource configuration information and the data to be sent through the acquired transmission resource.
The method according to claim 1 or 2, wherein the D2D resource configuration information received by the D2D terminal further includes: a duration of the D2D superframe;

The generated D2D resource configuration information further includes: a duration of the D2D superframe.
The method according to claim 1 or 2, wherein the D2D resource configuration information received by the D2D terminal further comprises: resource location information of a non-contention area in the D2D superframe;

The generated D2D resource configuration information further includes: resource location information of a non-contention area in the D2D superframe.
The method according to claim 4, wherein the D2D resource configuration information received by the D2D terminal further comprises: a number of layers of the non-contention area;

The generated D2D resource configuration information further includes: a number of layers of the non-contention area, where the number of layers is a value of the number of layers of the non-contention area plus 1 in the D2D resource configuration information received by the D2D terminal, and a predetermined value The smallest of the maximum number of levels threshold.
The method according to claim 4, wherein the D2D resource configuration information received by the D2D terminal further comprises: subchannel division information of the non-contention area;

The generated D2D resource configuration information further includes: subchannel division information of the non-contention area.
The method according to claim 1 or 2, wherein, if the D2D terminal receives the D2D resource configuration information sent by the network side device, the D2D resource configuration information further includes: D2D subframe configuration information;

The generated D2D resource configuration information further includes: D2D subframe configuration information.
The method according to claim 1 or 2, wherein if the D2D terminal receives D2D resource configuration information sent by a D2D terminal as a cluster head, the D2D resource configuration information further includes: in the D2D superframe Resource location information of a resource request channel R-REQ area;

The generated D2D resource configuration information further includes: resource location information of the R-REQ region in the D2D superframe.
The method according to claim 1 or 2, wherein the D2D resource received by the D2D terminal The configuration information further includes: subchannel division information of the contention area;

The generated D2D resource configuration information further includes: subchannel division information of the contention area.
The method according to claim 1 or 2, wherein the D2D terminal receives the D2D resource configuration information, including:

Receiving, by the D2D terminal, a system broadcast message sent by the network side device, where the system broadcast message carries the D2D resource configuration information; or

The D2D terminal receives D2D resource configuration information that is sent by the D2D terminal as a cluster head in a subframe in which the beacon information is located.
The method according to claim 1 or 2, wherein before the D2D terminal sends the generated D2D resource configuration information by using the obtained transmission resource, the method further includes:

Determining, by the D2D terminal, a contention area of the D2D superframe according to the received D2D resource configuration information; and acquiring the transmission resource in a contention manner in the contention area; or

The D2D terminal requests resource scheduling from the network side device or the D2D terminal as the cluster head, and acquires the transmission resource of the non-contention area in the D2D super frame according to the scheduling information sent by the network side device or the D2D terminal as the cluster head.
A method for transmitting D2D resource configuration information, comprising:

The D2D resource allocation device determines a contention region in the D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

The D2D resource allocation device generates D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The D2D resource allocation device sends the D2D resource configuration information to the D2D terminal.
The method according to claim 12, wherein before the generating the D2D resource configuration information, the method further comprises:

The D2D resource allocation device determines a duration of the D2D superframe, and the D2D resource configuration information further includes a duration of the D2D superframe.
The method according to claim 12, wherein before the generating the D2D resource configuration information, the method further comprises:

The D2D resource allocation device determines a non-contention area in the D2D superframe, and the D2D resource configuration information further includes: resource location information of a non-contention area in the D2D superframe.
The method according to claim 14, wherein the D2D resource configuration information further comprises: a number of layers of the non-contention area, the number of layers being an initial layer number.
The method according to claim 14, wherein the D2D resource configuration information further comprises: subchannel division information of the non-contention area.
The method according to any one of claims 14 to 16, wherein the D2D resource allocation device Determining non-contention areas in the D2D superframe, including:

The D2D resource allocation device acquires resource location information of a non-contention area in a D2D superframe determined by a neighboring D2D resource allocation device;

Determining, by the D2D resource allocation device, the non-contention area in the D2D superframe according to the obtained resource location information of the non-contention area, where the non-competition area and the adjacent one in the D2D superframe determined by the D2D resource allocation apparatus The non-contention areas determined by the D2D resource allocation device are orthogonal in the time domain or the frequency domain.
The method according to claim 12, wherein if the D2D distribution device is a network side device, the D2D resource configuration information further includes: D2D subframe configuration information.
The method according to claim 12, wherein if the D2D resource allocation device is a D2D terminal as a cluster head, the D2D resource configuration information further includes: a resource of an R-REQ region in the D2D superframe location information.
The method according to claim 12, wherein the D2D resource configuration information further comprises: subchannel division information of the contention area.
The method according to claim 12, wherein, if the D2D resource allocation device is a network side device, the D2D resource allocation device sends the D2D resource configuration information to the D2D terminal, including:

The network side device sends a system broadcast message to the D2D terminal, where the system broadcast message carries the D2D resource configuration information;

If the D2D resource allocation device is a D2D terminal that is a cluster head, the D2D resource allocation device sends the D2D resource configuration information to the D2D terminal, including:

The D2D terminal as a cluster head transmits D2D resource configuration information to other D2D terminals in a subframe in which the beacon information is located.
The method of claim 12, further comprising:

The D2D resource allocation device receives a resource scheduling request sent by the D2D terminal, and sends scheduling information to the D2D terminal, where the scheduling information is used to indicate a transmission resource allocated to the D2D terminal, where the transmission resource is in the D2D super Non-competitive area in the frame.
A D2D terminal, comprising:

a resource configuration information receiving module, configured to receive D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in a D2D superframe, where the D2D superframe is composed of D2D subframes in a duration thereof;

a resource configuration information generating module, configured to generate new D2D resource configuration information according to the D2D resource configuration information received by the resource configuration information receiving module, where the generated D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The resource configuration information sending module is configured to: after obtaining the transmission resource, send the generated D2D resource configuration information by using the obtained transmission resource.
The D2D terminal according to claim 23, wherein when the generated D2D resource configuration information is transmitted through the obtained transmission resource, the resource configuration information sending module is configured to:

When data transmission is required, the generated D2D resource configuration information and the data to be transmitted are transmitted through the acquired transmission resource.
The D2D terminal according to claim 23 or 24, wherein the D2D resource configuration information received by the resource configuration information receiving module further includes: a duration of the D2D superframe;

The D2D resource configuration information generated by the resource configuration information generating module further includes: a duration of the D2D superframe.
The D2D terminal according to claim 23 or 24, wherein the D2D resource configuration information received by the resource configuration information receiving module further includes: resource location information of a non-contention area in the D2D superframe;

The D2D resource configuration information generated by the resource configuration information generating module further includes: resource location information of a non-contention area in the D2D superframe.
The D2D terminal according to claim 26, wherein the D2D resource configuration information received by the resource configuration information receiving module further includes: a number of layers of the non-contention area;

The D2D resource configuration information generated by the resource configuration information generating module further includes: a number of layers of the non-contention area, where the number of layers is the number of layers of the non-competition area in the D2D resource configuration information received by the D2D terminal plus one The minimum of the value result and the predetermined maximum number of levels threshold.
The D2D terminal according to claim 26, wherein the D2D resource configuration information received by the configuration resource receiving module further includes: subchannel division information of the non-contention area;

The D2D resource configuration information generated by the resource configuration information generating module further includes: subchannel division information of the non-contention area.
The D2D terminal according to claim 23 or 24, wherein, if the resource configuration information receiving module receives the D2D resource configuration information sent by the network side device, the D2D resource configuration information further includes: D2D subframe configuration information;

The D2D resource configuration information generated by the resource configuration information generating module further includes: D2D subframe configuration information.
The D2D terminal according to claim 23 or 24, wherein if the resource configuration information receiving module receives the D2D resource configuration information sent by the D2D terminal as a cluster head, the D2D resource configuration information further includes: the D2D Resource location information of the R-REQ region in the superframe;

The D2D resource configuration information generated by the resource configuration information generating module further includes: resource location information of the R-REQ region in the D2D superframe.
The D2D terminal according to claim 23 or 24, wherein the D2D resource configuration information received by the resource configuration information receiving module further includes: subchannel division information of the contention area;

The D2D resource configuration information generated by the resource configuration information generating module further includes: subchannel dividing information of the contention area.
The D2D terminal according to claim 23 or 24, wherein the resource configuration information receiving module is specifically configured to:

Receiving a system broadcast message sent by the network side device, where the system broadcast message carries the D2D resource configuration information; or

Receiving D2D resource configuration information sent by the D2D terminal as a cluster head in a subframe in which the beacon information is located.
The D2D terminal according to claim 23 or 24, further comprising a transmission resource acquisition module:

Before the resource configuration information sending module sends the generated D2D resource configuration information by using the obtained transmission resource, the transmission resource acquiring module is configured to determine a contention region of the D2D super frame according to the received D2D resource configuration information; Area, acquiring transmission resources in a competitive manner; or,

Before the resource configuration information sending module sends the generated D2D resource configuration information by using the obtained transmission resource, the transmission resource acquiring module is configured to request resource scheduling from the network side device or the D2D terminal as a cluster head, according to the network side device or The scheduling information sent by the D2D terminal of the cluster head acquires the transmission resource of the non-contention area in the D2D superframe.
A D2D resource allocation device, comprising:

a superframe structure determining module, configured to determine a contention region in a D2D superframe, where the D2D superframe is composed of D2D subframes within its duration;

a resource configuration information generating module, configured to generate D2D resource configuration information, where the D2D resource configuration information includes resource location information of a contention area in the D2D superframe;

The resource configuration information sending module is configured to send the D2D resource configuration information to the D2D terminal.
The device according to claim 34, wherein the superframe structure determining module is further configured to:

Determining a duration of the D2D superframe, where the D2D resource configuration information further includes a duration of the D2D superframe.
The device according to claim 34, wherein the superframe structure determining module is further configured to:

Determining a non-contention area in the D2D superframe, where the D2D resource configuration information further includes: resource location information of a non-contention area in the D2D superframe.
The device according to claim 36, wherein the D2D resource configuration information further comprises: a number of layers of the non-contention area, the number of layers being an initial layer number.
The device according to claim 36, wherein the D2D resource configuration information further comprises: subchannel division information of the non-contention area.
The apparatus according to any one of claims 36 to 38, wherein, when determining a non-contention area in the D2D superframe, the superframe structure determining module is specifically configured to:

Obtaining resource location information of a non-contention area in a D2D superframe determined by a neighboring D2D resource allocation device;

Determining a non-contention area in the D2D superframe according to the obtained resource location information of the non-contention area, where the non-contention area in the D2D superframe determined by the D2D resource allocation apparatus is determined by an adjacent D2D resource allocation apparatus Non-contention areas are orthogonal in the time or frequency domain.
The device according to claim 34, wherein if the D2D distribution device is a network side device, the D2D resource configuration information further includes: D2D subframe configuration information.
The device according to claim 34, wherein if the D2D resource allocation device is a D2D terminal as a cluster head, the D2D resource configuration information further includes: a resource of an R-REQ region in the D2D superframe location information.
The device according to claim 34, wherein the D2D resource configuration information further comprises: subchannel division information of the contention area.
The device according to claim 34, wherein if the D2D resource allocation device is a network side device, the resource configuration information sending module is specifically configured to:

Sending a system broadcast message to the D2D terminal, where the system broadcast message carries the D2D resource configuration information;

If the D2D resource allocation device is a D2D terminal that is a cluster head, the resource configuration information sending module is specifically configured to:

The D2D resource configuration information is transmitted to other D2D terminals in the subframe in which the beacon information is located.
The device according to claim 34, further comprising a resource scheduling module, configured to receive a resource scheduling request sent by the D2D terminal, and send scheduling information to the D2D terminal, where the scheduling information is used to indicate that the D2D is A transmission resource allocated by the terminal, the transmission resource being in a non-contention area in the D2D superframe.