WO2015113235A1

WO2015113235A1 - Resource application method, device and system

Info

Publication number: WO2015113235A1
Application number: PCT/CN2014/071720
Authority: WO
Inventors: 马洁; 曹振臻
Original assignee: 华为技术有限公司
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2015-08-06
Also published as: CN105122927B; CN105122927A

Abstract

The present invention relates to the field of communications. Provided in an embodiment of the present invention are a resource application method, device and system for reducing the interference on data transmission during device to device (D2D) data transmission and increasing the accuracy of data transmission. The user equipment (UE) comprises: a receiving unit (101) for receiving the information of a first resource pool transmitted by a first device, the first resource pool comprising at least one resource block; a determination unit (102) for determining the status information of the at least one resource block; and a transmitting unit (103) for transmitting the resource application information to the first device; the receiving unit (101) is also used for receiving the information of an idle resource block allocated to the UE by the first device. The present invention is suitable for a UE conducting D2D communication.

Description

Method, device and system for resource application

The present invention relates to the field of communications, and in particular, to a method, device and system for resource application.

Background technique

The D2D (Device to De V i ce) technology is a technology in which a user equipment (UE) can transmit data through a direct link in a short range without performing data forwarding through a base station. In the D2D technology, it is required to allocate resource information to a UE that performs D2D data transmission through a base station.

In the prior art, when a certain UE needs to transmit data to other UEs through the D2D technology, the UE first needs to apply for the resource information required for transmitting data to the base station serving the UE, that is, to send the bearer to the base station serving the UE. A status report message with a buffered data size, after receiving the status report message sent by the UE, the base station allocates resource information required for transmitting data to the UE according to the size of the buffered data and the priority information of the UE carried in the status report message. So that the UE can use this resource information to transmit data to other UEs.

In the process of implementing the foregoing resource request, if the base station 1 and the base station 2 are neighboring base stations, the base station 1 allocates resources to the UE1, and the base station 2 allocates resources to the UE2, and at this time, when the geographical location of the UE1 and the UE2 are close, 1 The resources of the managed cell may be partially the same as the resources of the cell managed by the base station 2. The resource allocated by the base station 1 to the UE1 may be the same as the resource allocated by the base station 2 to the UE2, that is, the UE1 and the UE2 use the same resource. The data is transmitted between the UE and other UEs, causing the data sent by the UE1 to other UEs to interfere with the data sent by the UE2 to other UEs, so that the data sent by the UE1 and the UE2 cannot be correctly received by other UEs, thereby reducing the correct data transmission. rate.

Summary of the invention

Embodiments of the present invention provide a method, device, and system for resource application, which are used to reduce interference of data transmission during D2D data transmission, thereby improving positive data transmission. Confirmation rate.

In order to achieve the above object, the embodiment of the present invention uses the following technical solutions:

In a first aspect, an embodiment of the present invention provides a user equipment UE, which is applied to a device-to-device D2D communication system, and includes: a receiving unit, configured to receive information about a first resource pool sent by a first device; The first resource pool includes: at least one resource block; a determining unit, configured to determine status information of the at least one resource block; and a sending unit, configured to send a resource request message to the first device, where the resource The application message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. The receiving unit is further configured to receive, by the first device, the UE to be allocated to the UE. Information of the idle resource block, where the information of the idle resource block is used to indicate that the UE uses the idle resource block to perform data transmission with the second UE, where the idle resource block is the at least one resource Piece.

In a first possible implementation manner of the first aspect, the determining, by the determining unit, the determining, by the determining unit, the determining, by the determining unit, the acquiring, And determining, if the obtained power information is not greater than the first threshold, determining that the status information of the at least one resource block is idle state information; and determining that the acquired power information is greater than the first threshold And determining, by the determining unit, whether the at least one resource block carries a pilot signal, and if the at least one resource block is determined, Determining, by the pilot signal, the state information of the at least one resource block is idle state information; if it is determined that the at least one resource block carries the pilot signal, determining the at least one resource block The status information is busy status information.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the receiving unit is further configured to use a time period of a superframe as a period Receiving the superframe division information sent by the cluster head in the first time frame of the superframe division information, where the superframe division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame, where the first time frame is information that the first resource pool is sent by the cluster head, and the super frame division information and the first a frame of resource allocation information; the second time frame is a frame in which the UE sends the application resource message to the cluster head; the third time frame and the fifth time frame are the UE a frame in which the second UE transmits data; the fourth time frame is a frame in which the cluster head sends information of an idle resource block allocated by the cluster head to the UE to the UE; the receiving unit is configured to receive the first The information of the first resource pool that is sent by the device specifically includes: the receiving unit, configured to: when receiving the superframe division information sent by the cluster head in the first time frame of the superframe division information by using the time length of the superframe as a period And receiving the information of the first resource pool, where the sending, by the sending unit, the sending, by the sending, the resource requesting message, the sending unit, is configured to: send, according to the superframe, information to the cluster head Send a resource request message.

With reference to the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the information about the first resource pool is used to indicate each resource of the at least one resource block. The block is divided into related information of the at least one resource sub-block; the determining unit is further configured to determine, according to the information of the first resource pool, the idle resource sub-block; wherein the idle resource sub-block is the idle resource block And the determining unit is further configured to receive the first resource allocation information sent by the cluster head; and determine the idle resource sub-block according to the first resource allocation information; A resource allocation information is used to indicate a resource sub-block that is used by the cluster head to allocate to the UE for transmitting the resource request message.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the sending unit, configured to send a resource request message to the cluster head according to the superframe split information The sending unit is configured to send, in the second time frame in the superframe splitting information, the idle resource sub-block determined by the determining unit to the cluster head to carry The medium access control layer control unit MAC CE message of the resource application message.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the sending, by the sending unit, the sending a resource request message to the first device includes: The sending unit is configured to send, to the base station, when the receiving unit receives the information about the first resource pool sent by the base station And sending a radio resource control protocol (RRC) message carrying the resource application message; or sending the MA CCE message carrying the resource application message to the base station.

In a second aspect, an embodiment of the present invention provides an apparatus, which is applied to the D2D communication system, and includes: a sending unit, configured to send, to a user equipment UE, information of a first resource pool; The resource pool includes: at least one resource block; a receiving unit, configured to receive a resource request message sent by the UE, where the resource request message carries a service type of the application resource, and an idle status message of the at least one resource block, 3⁄4 And/or the busy state information of the at least one resource block; the sending unit is further configured to: send, according to the resource request message, information about an idle resource block allocated to the UE to the UE, where the idle resource The block is the at least one resource block.

In a first possible implementation manner of the second aspect, if the device includes a cluster head, the sending unit is further configured to use a time period of a superframe as a period, in a first time frame of the superframe division information. Transmitting the superframe splitting information to the UE; the superframe splitting information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame; wherein, the first The time frame is used by the cluster head to send information of the first resource pool, the superframe division information and the frame of the first resource allocation information; the second time frame is that the UE sends the application resource to the cluster head a frame of the message; the third time frame and the fifth time frame are frames in which the UE sends data to the second UE; the fourth time frame is that the cluster head sends a cluster head to the UE to allocate a frame of the information of the idle resource block of the UE; the sending, by the sending unit, the information of the first resource pool to the UE, specifically: the sending unit, configured to use a superframe in a period of a superframe First time frame for dividing information Transmitting, by the UE, the information about the first resource pool when transmitting the superframe splitting information to the UE; the sending unit, according to the resource request message, sending, to the UE, an idle resource allocated to the UE The information of the block specifically includes: the sending unit, configured to send information about an idle resource block allocated to the UE to the UE according to the superframe splitting information and the resource request message.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the method further includes: if the device includes a cluster head, a processing unit, Each resource of at least one resource block in the first resource pool The block is divided into at least one resource sub-block; the sending unit is further configured to send the first resource allocation information to the UE, where the first resource allocation information is used to indicate that the cluster head is allocated to the UE An idle resource sub-block that is used when sending a resource request message.

With the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, the receiving, by the receiving unit, The device includes a cluster head, and the receiving unit is configured to receive, by using an idle resource sub-block, a media access control layer control unit MAC CE message that is sent by the UE and that carries the resource application message, where the idle resource sub-block is The resource sub-block used by the UE to send the resource request message to the cluster head.

With the third possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, the sending unit is configured to: according to the superframe split information and the resource request message, And the sending, by the sending unit, the sending unit, configured to: in the fourth time frame in the superframe splitting information, according to the resource request message, The idle resource sub-block transmits information of the idle resource block allocated to the UE to the UE.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the receiving, by the receiving unit, the resource request message sent by the UE includes: if the device includes a base station, the receiving unit, Receiving a radio resource control protocol RRC message that is sent by the UE and carrying the resource application message; or, for receiving the MAC CE message that is sent by the UE and carrying the resource application message.

In a third aspect, the embodiment of the present invention provides a method for applying for a resource, where the user equipment UE receives the information of the first resource pool sent by the first device, where The first resource pool includes: at least one resource block; the UE determines status information of the at least one resource block; the UE sends a resource request message to the first device, where the resource application message carries an application a service type of the resource, idle state information of the at least one resource block, and/or busy state information of the at least one resource block; the UE receiving information of the idle resource block allocated by the first device to the UE; The information of the idle resource block is used to indicate that the UE uses the idle resource block to perform data transmission with the second UE, where the idle resource The source block is the at least one resource block.

In a first possible implementation manner of the third aspect, the determining, by the UE, status information of the at least one resource block includes: acquiring, by the UE, power information on the at least one resource block; Whether the power information is greater than the first threshold, if the UE determines that the acquired power information is not greater than the first threshold, the UE determines that the state information of the at least one resource block is an idle state. And determining, by the UE, status information of the at least one resource block as busy status information; or determining, by the UE, that the at least one resource block is greater than the first threshold. Whether a resource block carries a pilot signal, and if the UE determines that the pilot signal is not carried on the at least one resource block, the UE determines that state information of the at least one resource block is idle state information; If the UE determines that the pilot signal is carried on the at least one resource block, the UE determines that status information of the at least one resource block is a busy state. information.

With the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, before the UE sends the resource application message to the first device, The UE receives the superframe split information sent by the cluster head in a first time frame of the superframe split information, where the superframe split information includes: the first time frame a second time frame, a third time frame, a fourth time frame, and a fifth time frame; wherein, the first time frame is information for sending the “resource pool” to the cluster head, and the super frame division information and the a frame of resource allocation information; the second time frame is a frame in which the UE sends the application resource message to the cluster head; the third time frame and the fifth time frame are the UE a frame in which the second UE sends data; the fourth time frame is a frame in which the cluster head sends information of an idle resource block allocated by the cluster head to the UE to the UE; and the UE receives the information sent by the first device. The information of the first resource pool includes: the UE And receiving, in a first time frame of the superframe division information, a superframe division information sent by the cluster head, and receiving information of the first resource pool, where the UE is to the first And the sending, by the UE, the resource application message to the cluster head according to the received superframe division information. With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the information about the first resource pool is used to indicate each resource of the at least one resource block The block is divided into related information of the at least one resource sub-block; before the sending, by the UE, the resource request message to the cluster head according to the received super-frame partitioning information, the method further includes: the UE according to the first resource pool Determining an idle resource sub-block; wherein the idle resource sub-block is one resource sub-block in the idle resource block; or the UE receives the first resource allocation information sent by the cluster head; Determining the idle resource sub-block according to the first resource allocation information.

With the third possible implementation of the third aspect, in a fourth possible implementation manner of the third aspect, the sending, by the UE, the resource request message to the cluster head according to the received superframe partitioning information includes: Transmitting, by the UE, the media access control layer control unit carrying the resource application message to the cluster head in the second time frame in the superframe split information MAC CE message.

With the third aspect, or the first possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the sending, by the UE, the resource request message to the first device includes: Transmitting, by the base station, a radio resource control protocol RRC message carrying the resource request cancellation, when receiving the information of the first resource pool sent by the base station; or sending, by the UE, the carrying There is the MAC CE message of the resource request message.

In a fourth aspect, the embodiment of the present invention provides a method for applying for a resource, where the method is applied to the D2D communication system, where: the first device sends information of the first resource pool to the user equipment UE, where A resource pool includes: at least one resource block; the first device receives a resource request message sent by the UE, where the resource request message carries a service type of an application resource, idle state information of at least one resource block, and And/or information of the busy state of the at least one resource block; the first device, according to the received resource request message, sending, to the UE, information of an idle resource block allocated to the UE; where the idle resource block Is the at least one resource block.

In a first possible implementation manner of the fourth aspect, before the receiving, by the first device, the resource request message sent by the UE, the method further includes: if the first device includes a cluster a header, the cluster header sends superframe splitting information to the UE in a first time frame of the superframe splitting information in a period of a superframe; the superframe splitting information includes: a first time frame, a second time a frame, a third time frame, a fourth time frame, and a fifth time frame; wherein the first time frame is information that the first resource pool is sent by the cluster head, the super frame division information and the first resource allocation information The second time frame is a frame in which the UE sends the application resource message to the cluster head; the third time frame and the fifth time frame are data sent by the UE to the second UE. The fourth time frame is a frame in which the cluster head sends information of an idle resource block allocated by the cluster head to the UE to the UE; the first device sends the first resource pool to the UE. The information includes: the cluster head transmits the superframe splitting information to the UE in a first time frame of the superframe splitting information in a period of a superframe, and sends the first resource pool Information; the first device according to the received resource request The message of the idle resource block allocated to the UE to the UE is: the cluster head sends the allocation to the UE according to the received resource request message and the superframe splitting information. Information about the idle resource block of the UE.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, before the device sends the information of the first resource pool to the UE, the method further includes: If the device includes a cluster head, the cluster head divides each resource block of at least one resource block in the first resource pool into at least one resource sub-block; and sends, by the device, a first resource pool to the UE. After the information, the method further includes: the cluster head sends the first resource allocation information to the UE, where the first resource allocation information is used to indicate that the cluster head is allocated to the UE for sending a resource request message Free resource sub-block.

With the second possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the receiving, by the first device, the resource application message sent by the UE includes: if the first device includes a cluster head, the cluster head receives, by the idle resource sub-block, a media access control layer control unit MA CCE message that is sent by the UE and carries the resource application message; the idle resource sub-block is the UE A resource sub-block used by the cluster head when transmitting the resource request message. With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the cluster head, according to the superframe division information and the received resource application message, The information that the UE sends the idle resource block allocated to the UE includes: the cluster head according to the received resource request message, in the fourth time frame in the superframe split information, The idle resource sub-block transmits information of the idle resource block allocated to the UE to the UE.

With reference to the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the receiving, by the first device, the resource application message sent by the UE includes: if the first device includes a base station, the base station receives the a radio resource control protocol R RC message that is sent by the UE and carries the resource request message; or, the base station receives the MAC CE message that is sent by the UE and carries the resource application message.

In a fifth aspect, an embodiment of the present invention provides a user equipment UE, which is applied to the D2D communication system, and includes: a receiver, configured to receive information about a first resource pool sent by a first device; The first resource pool includes: at least one resource block; a processor, configured to determine status information of the at least one resource block; a transmitter, configured to send a resource request message to the first device, where the resource request The message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. The receiver is further configured to receive, by the first device, the first device to be allocated to the UE. Information of the idle resource block, where the information of the idle resource block is used to indicate that the UE uses the idle resource block to perform data transmission with the second UE, where the idle resource block is the at least one resource block .

In a first possible implementation manner of the fifth aspect, the determining, by the processor, the status information of the at least one resource block includes: the processor, configured to acquire power information on the at least one resource block If it is determined that the acquired power information is not greater than the first threshold, determining that the state information of the at least one resource block is idle state information; if it is determined that the obtained power information is greater than the first threshold, Determining, by the processor, determining, by the processor, whether the at least one resource block carries the pilot signal, if the at least one resource block is determined to be Determining the at least one if the pilot signal is not carried The state information of the resource blocks is the idle state information. If it is determined that the at least one resource block carries the pilot signal, determining that the state information of the at least one resource block is the busy state information.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the receiver is further configured to use a time period of a superframe as a period Receiving the superframe division information sent by the cluster head in the first time frame of the superframe division information, where the superframe division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame; wherein the first time frame is information that the first resource pool is sent by the cluster head, the superframe division information and the first resource allocation information frame; the second time frame is the Sending, by the UE, the frame of the application resource message to the cluster head; the third time frame and the fifth time frame are frames in which the UE sends data to the second UE; The cluster head sends, to the UE, a frame that is allocated by the cluster head to the information of the idle resource block of the UE; the information that the receiver is used to receive the first resource pool sent by the first device includes: the receiver, For superframe time The first length of the period is the first time frame of the superframe division information, and when receiving the superframe division information sent by the cluster head, and receiving the information of the first resource pool; the transmitter is used to the first device The sending the resource application message specifically includes: the sender, configured to send a resource application message to the cluster head according to the superframe division information received by the receiver.

With reference to the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the information of the first resource pool is used to indicate each resource of the at least one resource block The block is divided into related information of at least one resource sub-block; the processor is further configured to determine, according to information of the first resource pool, an idle resource sub-block; wherein the idle resource sub-block is the idle resource block a resource sub-block; or the processor, configured to receive the first resource allocation information sent by the cluster head; and determine the idle resource sub-block according to the first resource allocation information, where A resource allocation information is used to indicate a resource sub-block that is used by the cluster head to allocate to the UE for transmitting the resource request message.

In conjunction with the third possible implementation of the fifth aspect, the fourth aspect of the fifth aspect In a possible implementation manner, the sending, the sending, by the sending, the resource request message to the cluster head according to the superframe splitting information includes: the transmitter, configured to be used in the superframe splitting information And transmitting, in the second time frame, the media access control layer control unit MAC CE message carrying the resource application message to the cluster head by using the idle resource sub-block determined by the processor.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the sending, by the sending, the sending of the resource application message to the first device includes: The transmitter is configured to: when the receiver receives the information about the first resource pool sent by the base station, send, to the base station, a radio resource control protocol R RC message that carries the resource application message; Or sending, to the base station, the MAC CE message carrying the resource application message.

According to a sixth aspect, an embodiment of the present invention provides a device, which is applied to the D2D communication system, and includes: a transmitter, configured to send information of a first resource pool to a user equipment UE, where the first The resource pool includes: at least one resource block; a receiver, configured to receive a resource request message sent by the UE, where the resource request message carries a service type of the application resource, idle state information of the at least one resource block, and/or Or the busy state information of the at least one resource block; the transmitter is further configured to: send, according to the resource request message, information about an idle resource block allocated to the UE to the UE, where the idle resource block is The at least one resource block.

In a first possible implementation manner of the sixth aspect, if the device includes a cluster head, the transmitter is further configured to use a time period of a superframe as a period, in a first time frame of the superframe division information. Transmitting the superframe splitting information to the UE; the superframe splitting information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame; wherein, the first The time frame is used by the cluster head to send information of the first resource pool, the superframe division information and the frame of the first resource allocation information; the second time frame is that the UE sends the application resource to the cluster head a frame of the message; the third time frame and the fifth time frame are frames in which the UE sends data to the second UE; the fourth time frame is that the cluster head sends a cluster head to the UE to allocate a frame of information of the idle resource block of the UE; the transmitter is configured to send, to the UE, a specific packet of information of the first resource pool The transmitter is configured to: when the superframe splitting information is sent to the UE, send the first resource in a first time frame of superframe splitting information in a period of a superframe duration The information of the pool, the sending, by the sender, the information about the idle resource block allocated to the UE to the UE according to the resource request message, specifically: the transmitter, configured to divide information and information according to the superframe And the resource application message is sent to the UE, where the information about the idle resource block allocated to the UE is sent.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the method further includes: if the device includes a cluster head, a processor, Each resource block of the at least one resource block in the first resource pool is divided into at least one resource sub-block; the information of the first resource pool is used to indicate that each resource block of the at least one resource block is divided into The information about the at least one resource sub-block; or the transmitter is further configured to send the first resource allocation information to the UE, where the first resource allocation information is used to indicate that the cluster head is allocated to the UE An idle resource sub-block that is used when sending a resource request message.

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the receiving, by the receiving, the a cluster head, the receiver, configured to receive, by using an idle resource sub-block, a media access control layer control unit MAC CE message that is sent by the UE and that carries the resource application message, where the idle resource sub-block is The resource sub-block used by the UE when the resource request message is sent to the cluster head.

With reference to the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the transmitter is configured to send, according to the superframe split information and the resource request message, to the UE The information of the idle resource block allocated to the UE includes: the sender, configured to use the idle time in the fourth time frame in the superframe split information according to the resource request message The resource sub-block transmits information of the idle resource block allocated to the UE to the UE.

With reference to the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the receiving, by the receiver, the resource request message sent by the UE includes: if the device includes a base station, the receiver, Receiving, by the UE, carrying the capital a radio resource control protocol RRC message of the source application message; or, configured to receive the MAC CE message that is sent by the UE and that carries the resource application message.

In a seventh aspect, the embodiment of the present invention provides a system for applying for a resource, which is applied to the D2D communication system, and includes: a user equipment UE and a first device; wherein, the UE is the foregoing embodiment. UE; the first device is the device described in the foregoing embodiment.

The embodiment of the present invention provides a method, a device, and a system for requesting a resource. After receiving the information of the first resource pool sent by the first device, the user equipment UE determines the state of at least one resource block included in the first resource pool. And transmitting, to the first device, a resource application message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block, so that the first device is configured according to the received resource The application message sends the information of the idle resource block allocated to the UE to the UE. At this time, the UE receives the information of the idle resource block allocated by the first device and allocated to the UE, so that the UE uses the idle resource block to perform data with the second UE. transmission. In this way, when the cells managed by the two first devices have the same resource, the two first devices can allocate different idles to the UEs managed by the UEs according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, uses different idle resource blocks to transmit data to the second UE, thereby reducing interference of data transmission during D 2 D data transmission, and improving the accuracy of data transmission.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic diagram of functions of a user equipment UE according to an embodiment of the present invention; FIG. 2 is a schematic diagram of functions of a device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of functions of another device according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart of a method for requesting a resource according to an embodiment of the present invention; Figure

FIG. 5 is a schematic flow chart of another method for resource application according to an embodiment of the present disclosure;

FIG. 6 is a schematic flow chart of another method for resource application according to an embodiment of the present disclosure;

FIG. 7 is a structural diagram of superframe division information according to an embodiment of the present invention; FIG. 8 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention; Schematic;

FIG. 10 is a schematic structural diagram of a system for resource application according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the present invention provides a UE (User Equipment), which is applied to a D2D (Device to Device) communication system. As shown in FIG. 1, the method includes: a receiving unit 101, a determining unit 102, and Transmitting unit 103. among them,

The receiving unit 101 is configured to receive information about a first resource pool sent by the first device.

The first resource pool is a resource that is allocated when the first device performs D2D communication for the UE, and the information of the first resource pool is used to indicate that the first device performs the foregoing for the UE. Information related to resources allocated during D2D communication; the first resource pool includes: at least one resource block; the cluster head is one UE of a cluster consisting of multiple UEs that communicates with a D2D link, and is used for Manage other UEs in the cluster.

Specifically, the receiving unit 101, before receiving the information of the first resource pool sent by the first device, needs to receive the identifier that is sent by the first device and carries the first device. The receiving unit 101 determines whether the received information of the first resource pool is sent by the base station to the UE or is sent by the cluster head to the UE according to the received message carrying the identification information of the first device. . If it is determined that the identifier information of the first device is the identifier information of the base station, determining that the received information of the first resource pool is sent by the base station to the UE; and determining the identifier information of the first device carried in the information of the first resource pool For the identification information of the cluster head, it is determined that the received information of the first resource pool is sent by the cluster head to the UE.

It is to be noted that, when receiving the information of the first resource pool sent by the base station, the receiving unit 101 determines that the UE accesses the network itself; if receiving the information of the first resource pool sent by the base station, If the information of the first resource pool sent by the cluster head is received, the UE may determine that the UE accesses the network. If only the information of the first resource pool sent by the cluster head is received, it is determined that the UE does not access the network.

It should be noted that, when the receiving unit 101 determines that the UE does not access the network, the first resource pool indicated by the information of the received first resource pool is pre-configured for the D2D communication by the cluster head. The first resource pool indicated in the received information of the first resource pool is a resource block allocated by the base station to the UE for D2D communication when determining that the UE itself accesses the network.

The determining unit 102 is configured to determine status information of the at least one resource block. Specifically, the determining unit 102 is configured to determine status information of at least one resource block included in the first resource pool, and the specific method is as follows:

The first method, the determining unit 102 is specifically configured to acquire power information on the at least one resource block, and determine whether the acquired power information is greater than a first threshold.

If it is determined that the obtained power information is not greater than the first threshold, determining that state information of the at least one resource block is idle state information;

And determining that the obtained power information is greater than the first threshold, determining that the status information of the at least one resource block is busy status information.

That is, the determining unit 102 needs to at least one resource block included in the first resource pool after learning the first resource pool used by the UE itself for performing D2D communication. The status information on each resource block is determined, that is, the received power information on each resource block of the at least one resource block included in the first resource pool is obtained, and the received power information on each resource block is respectively obtained. Comparing with the preset first threshold, if it is determined that the received power information on the obtained resource block is not greater than the preset first threshold, the received power information is not greater than the preset first gate. The status information of the resource block of the limit is determined to be idle state information. If it is determined that the received power information on the obtained resource block is greater than a preset first threshold, the received power information is greater than a preset first threshold. The status information of the resource block of the value is determined to be busy status information.

In a second method, the determining unit 102 is specifically configured to determine whether a pilot signal is carried on the at least one resource block.

If it is determined that the pilot signal is not carried on the at least one resource block, determining that the state information of the at least one resource block is idle state information.

If it is determined that the pilot signal is carried on the at least one resource block, determining that the status information of the at least one resource block is busy status information.

That is, the determining unit 102, after learning the first resource pool used by the UE itself for D2D communication, parsing whether each resource block of at least one resource block included in the first resource pool carries If there is any pilot information, if it is determined that the pilot information is not carried on the resource block, the state information of the resource block that does not carry the pilot information is determined as idle state information; if it is determined that the pilot information is carried on the resource block, Then, the state information carrying the resource block corresponding to the pilot information is determined as the busy state information.

The sending unit 1 0 3 is configured to send a resource request message to the first device. The resource application message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block.

Specifically, when the UE determines that the UE accesses the network, the sending unit 1 0 3 may send, to the base station or the cluster head, a service type carrying the application resource, idle state information of the at least one resource block, and/or at least one resource block. Resource request message for busy status information.

When the UE determines that it does not have access to the network, the sending unit 1 0 3 sends only the service type carrying the application resource and the idle status message of the at least one resource block to the cluster head, 3⁄4 And/or a resource request message for the busy status information of at least one resource block.

Further, the sending unit 103 sends the resource request message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the resource request message of the busy state information of the at least one resource block to the base station, as follows: :

The first method, the sending unit 103, when the receiving unit 101 receives the information about the first resource pool sent by the base station, is configured to send, to the base station, an RRC that carries the resource application message. (Radio Resource Control, Radio Resource Control Protocol) message.

Exemplarily, the sending unit 103 may use a service type field in an RRC message to carry a service type of the application resource, and use a resource status field to carry idle state information of at least one resource block and/or at least one resource block. The busy state information, so that when the RRC message is sent to the base station by the base station to allocate the RRC message, the service type of the application resource, the idle state information of the at least one resource block, and/or at least The busy status information of a resource block is sent to the base station.

It should be noted that, the sending unit 103 may use other fields in the RRC message to carry the service type of the application resource and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block. This is not a limitation.

In a second method, the sending unit 103, when the receiving unit 101 receives the information about the first resource pool sent by the base station, is configured to send, to the base station, a MAC that carries the resource application message. CE (Media Access Control Control Element) message.

Exemplarily, the sending unit 103 may carry the service type of the application resource, and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block in the MAC CE message. That is, according to the format of the MAC CE message, the service type of the application resource is carried in the first four bits of the first byte of the MAC CE message, and the idle state information of at least one resource block is carried in the last four bits of the first byte. The state information carrying the resource block in the second byte is all resource blocks of the idle state information; the service type of the application resource is carried in the first four bits of the third byte, and the last four digits of the third byte Carrying the busy state information of at least one resource block, and carrying the resource block in the fourth byte The state information is all the resource blocks of the busy state information, so that when the resource for transmitting the RRC message allocated by the base station to the UE is used to send the MAC CE message to the base station, the service type of the application resource, at least one resource block The idle state information and/or the busy state information of the at least one resource block are transmitted to the base station.

It should be noted that, the sending unit 103, in the MAC CE message, carries the service type of the application resource, and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block, and may be other methods. The invention is not limited thereto.

Further, the sending unit 103 is configured to send, to the cluster head, a MAC CE message carrying the resource application message.

Specifically, the method for the sending unit 103 to send the MAC CE message carrying the resource request message to the cluster head may be similar to the method for sending the MAC CE message carrying the resource request message to the base station. The present invention will not be described again herein.

The receiving unit 101 is further configured to receive information about an idle resource block allocated by the first device to the UE.

The information of the idle resource block is used to indicate that the UE uses the idle resource block to perform data transmission with the second UE; the idle resource block is the at least one resource block.

Specifically, the receiving unit 101 sends, in the sending unit 103, the service type carrying the application resource, the idle status information of the at least one resource block, and/or the busy status information of the at least one resource block to the first device. After the resource application message, the information about the idle resource block allocated by the first device to the UE is received, and the idle resource block used when sending data to the second UE is learned according to the information of the idle resource block, thereby using the idle resource block and the first The two UEs perform data transmission, and complete communication between the UE and the second UE.

It should be noted that, when determining that the UE itself accesses the network, the receiving unit 101 may receive information about an idle resource block allocated by the base station or the cluster head to the UE; when it is determined that the network does not access the network, it can only receive The information that the cluster head allocates to the idle resource block of the UE.

Further, the receiving unit 101 is further configured to use a time period of a superframe as a week And receiving superframe division information sent by the cluster head in the first time frame of the superframe division information.

The superframe splitting information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame; wherein, the first time frame is sent by the cluster head a resource pool information, a frame of the superframe division information and the first resource allocation information; the second time frame is a frame in which the UE sends the application resource message to the cluster head; The frame and the fifth time frame are frames in which the UE sends data to the second UE; the fourth time frame is that the cluster head sends a cluster resource to the UE to allocate a cluster resource to an idle resource block of the UE. The frame of information.

The receiving unit 1 0 1 is configured to receive information about the first resource pool sent by the first device, specifically:

The receiving unit 1 0 1 is configured to receive the super resource frame splitting information sent by the cluster head in a first time frame of the superframe splitting information in a period of a superframe, and receive the first resource pool. Information.

The sending, by the sending unit, the sending of the resource request message to the first device, specifically includes: the sending unit 1 0 3, configured to send a resource request message to the cluster according to the superframe dividing information.

Further, the information of the first resource pool is further used to indicate that each resource block of the at least one resource block is divided into related information of at least one resource sub-block.

Further, the determining unit 1 0 2 is further configured to determine an idle resource sub-block.

Specifically, the determining unit 102 determines two methods for the idle resource sub-block, as follows:

In a first method, the determining unit 102 is further configured to determine, according to information about the first resource pool, an idle resource sub-block.

The idle resource sub-block is one resource sub-block in the idle resource block. Specifically, the determining unit 102, after receiving the information of the first resource pool, parses out that each resource block of the at least one resource block indicated in the information of the first resource pool is divided into at least one resource sub-block. Information, that is, the division information of each resource block of at least one resource block in the first resource pool is obtained, thereby selecting one of the resource blocks An idle resource sub-block, the idle resource sub-block is determined as an idle resource sub-block, and then, in the second time frame in the super-frame splitting information, the idle resource sub-block is used to send to the cluster head A MAC CE message carrying a resource request message.

In a second method, the determining unit 1 0 2 is further configured to receive the first resource allocation information sent by the cluster head, and determine the idle resource sub-block according to the first resource allocation information.

The first resource allocation information is used to indicate a resource sub-block that is used by the cluster head to allocate to the UE for sending the resource request message.

Specifically, the determining unit 1 0 2, after receiving the first resource allocation information sent by the cluster head, parsing the resource sub-blocks used by the UE for transmitting the resource application message in the first resource allocation information And determining the idle resource sub-block, and in the second time frame in the super-frame splitting information, using the idle resource sub-block to send the MAC CE message carrying the resource application message to the cluster head.

The sending unit 1 0 3 is configured to send a resource request message to the cluster according to the superframe splitting information, and specifically includes:

The sending unit 1 0 3 is configured to send, in the second time frame in the superframe splitting information, the idle resource sub-block determined by the determining unit 102 to the cluster head A MAC CE message carrying the resource request message.

The idle resource sub-block is allocated to the UE in a case where the cluster head divides each of the at least one resource block into at least one resource sub-block, and is configured to send the a resource sub-block of the resource request message; or in a case where the cluster head divides each of the at least one resource block into at least one resource sub-block, the UE is selected in at least one resource sub-block Any resource sub-block.

The embodiment of the present invention provides a user equipment (UE), after receiving the information of the first resource pool sent by the first device, the UE determines the state information of the at least one resource block included in the first resource pool, and sends the status information to the first device. Sending a resource request message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block, so that the first device sends the allocation to the UE according to the received resource request message. Information about the idle resource block of the UE. At this time, the UE receives the first device to send. The information allocated to the idle resource block of the UE, so that the UE uses the idle resource block to perform data transmission with the second UE. In this way, when the cells managed by the two first devices have the same resource, the two first devices can allocate different idles to the UEs managed by the UEs according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, uses different idle resource blocks to send data to the second UE, thereby reducing interference of data transmission during D2D data transmission, and improving the accuracy of data transmission.

The embodiment of the present invention provides a device, which is applied to a D2D communication system. As shown in FIG. 2, the method includes: a sending unit 201 and a receiving unit 202. among them,

The sending unit 201 is configured to send information about the first resource pool to the user equipment UE. The first resource pool is a resource allocated by the device when the device performs device-to-device D2D communication; the information of the first resource pool is used to indicate that the device performs the D2D for the UE Information about resources allocated during communication; the first resource pool includes: at least one resource block; the cluster head is one of a cluster of multiple UEs that communicates with a D2D link, for management Other UEs in the cluster.

Specifically, if the first device includes a base station, the sending unit 201 sends the information of the first resource pool to the UE in a broadcast manner, that is, sends information of the resource block used for performing D2D communication to the UE.

If the first device includes a cluster head, the sending unit 201 sends the pre-configured information of the resource block used for D2D communication to the UE in a broadcast manner; or when the receiving base station sends the D2D communication. After the information of the used resource block, the sending unit 201 sends the information to the UE.

It should be noted that, the sending unit 201 may further send a message of the first resource pool to the UE according to other manners, for example, the sending unit 201 sends a message of the first resource pool to the UE in a dedicated signaling manner, and the present invention This is not a limitation.

The receiving unit 202 is configured to receive a resource application message sent by the UE. The resource application message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block.

Specifically, if the device includes a base station, the receiving unit 202 can receive The resource request sent by the UE carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy status message of the at least one resource block, is eliminated.

If the device includes a cluster head, the resource request message sent by the UE and carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block may also be received.

Further, if the device includes a base station, the receiving unit 202 is configured to receive a radio resource control protocol R R C message that is sent by the U E and carries the resource request cancellation.

Specifically, if the device includes a base station, the receiving unit 202 receives an RRC message that is sent by the UE and carries the resource application message when the UE sends an RRC message to the base station, and receives the RRC message. The resource request message is parsed in the RRC message, and the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block are further parsed in the resource application message.

Or the receiving unit 202 is configured to receive the MAC CE message that is sent by the UE and that carries the resource application message.

Specifically, the receiving unit 202 receives the MAC CE message that is sent by the UE and carries the resource application message, and parses out the MAC CE message in the MAC CE message when the UE sends the MAC CE message to the base station. The carried resource application message further parses out the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block in the resource application message.

If the device includes a cluster head, the receiving unit 202 is configured to receive, by the idle resource sub-block, a media access control layer control unit MAC CE message that is sent by the UE and carries the resource application message.

The idle resource sub-block is a resource sub-block used when the UE sends the resource request message to the cluster head.

Specifically, if the device includes a cluster head, the receiving unit 202 receives, by the idle resource sub-block, the MACCE that is sent by the UE and carries the resource request message, and parses the carried in the MAC CE message. Resource application message, further in resource application The message parses the service type of the application resource, the idle state information of the at least one resource block, and/or the busy status information of the at least one resource block.

The sending unit 201 is further configured to send, according to the resource application message, information about an idle resource block allocated to the UE to the UE.

The idle resource block is the at least one resource block.

Specifically, if the device includes a base station, the sending unit 201 may learn, according to the parsed service type of the application resource, the idle status information of the at least one resource block, and/or the busy status information of the at least one resource block. The resource block state information in the first resource pool for performing D2D communication is busy state information or idle state information, and at least one idle resource block is allocated to the UE in a resource block whose state information of the resource block is idle state information, and is allocated Information for at least one idle resource block of the UE is sent to the UE.

If the device includes a cluster head, the sending unit 201 learns the D2D communication according to the parsed service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. The resource block state information in a resource pool is busy state information or idle state information, and allocates at least one idle resource block to the UE in a resource block whose state information of the resource block is idle state information, and allocates at least one to the UE. The information of the idle resource block is sent to the UE.

It should be noted that, if the device includes a base station, the sending unit 201 may carry information of at least one idle resource block allocated to the UE in a PDCCH (Physical Layer Downlink Control Channel) and send the message to the UE. The information of the at least one idle resource block allocated to the UE may also be carried in the MAC CE message and sent to the UE.

Further, if the device includes a cluster head, the sending unit 201 is further configured to send the superframe splitting information to the UE in a first time frame of the superframe splitting information by using a time length of the superframe as a period The superframe division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame.

The first time frame is information that the first resource pool is sent by the cluster head, the superframe division information and the frame of the first resource allocation information, and the second time frame is that the UE is to the cluster. Sending, by the header, a frame of the application resource message; the third time frame and the The fifth time frame is a frame in which the UE sends data to the second UE; the fourth time frame is a frame in which the cluster head sends information of a cluster resource allocated to the idle resource block of the UE by the cluster head to the UE.

The information that the sending unit 201 sends to the UE for the first resource pool specifically includes:

The sending unit 201 is configured to send the first resource pool when the superframe splitting information is sent to the UE in a first time frame of the superframe splitting information in a period of a time length of the superframe. Information.

The sending, by the sending unit 201, the information about the idle resource block allocated to the UE to the UE according to the resource request message includes:

The sending unit 201 is configured to send information about an idle resource block allocated to the UE to the UE according to the superframe split information and the resource request message.

Further, the device, as shown in FIG. 3, further includes: a processing unit 203. If the device includes a cluster head, the processing unit 203 is configured to divide each resource block of at least one resource block in the first resource pool into at least one resource sub-block.

Specifically, if the device includes a cluster head, the processing unit 203 needs to allocate each resource block of at least one resource block in the first resource pool before the sending unit 201 sends the information of the first resource pool to the UE. The available bandwidth is divided into equal resource sub-blocks.

Exemplarily, if the available bandwidth of each resource block of at least one resource block in the first resource pool is 5M, the processing unit 203 may divide the 5M available bandwidth into equal 25 resource sub-blocks. The available bandwidth of each resource sub-block is 180KHZ.

The sending unit 201 is further configured to send first resource allocation information to the UE. The first resource allocation information is used to indicate an idle resource sub-block that is used by the sending unit 201 to allocate a resource request message to the UE.

Further, the sending unit 201 is configured to send, according to the superframe splitting information and the resource request message, the information that is allocated to the UE to the idle resource block that is allocated to the UE, specifically:

The sending unit 201, according to the resource application message, is divided in the superframe In the fourth time frame in the information, the idle resource sub-block is used to send information about the idle resource block allocated to the UE to the UE.

That is, the sending unit 2 G 1 , according to the service type of the application resource parsed by the receiving unit 2 G 2 , the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block, is known. The resource block state information in the first resource pool in which the D 2 D communication is performed is the busy state information or the idle state information, and the UE is allocated at least one idle resource block in the resource block whose state information is the idle state information, and is in the super frame. In the fourth time frame in the split information, the idle resource sub-block used when the UE sends the resource request message to the cluster head transmits the information of the at least one idle resource block allocated to the UE to the UE, so that When the UE sends the resource request message to the cluster head, the same idle resource sub-block sends the information of the at least one idle resource block allocated to the UE to the UE, and does not need to carry the identifier information of the UE, thereby saving the resources occupied by the identifier information of the UE.

The embodiment of the present invention provides a device, after the device sends a message of the first resource pool to the user equipment UE, so that the UE determines the first resource after receiving the information of the first resource pool sent by the device. Status information of at least one resource block included in the pool, and sending, to the device, a resource application message carrying a service type of the application resource, idle state information of the at least one resource block, and/or busy status information of the at least one resource block, At this time, the device sends the information of the idle resource block allocated to the UE to the UE according to the received resource request message, so that the UE uses the idle resource block to perform data transmission with the second UE. In this way, when the two cells managed by the device have the same resource, the two devices can allocate different idleness to the UE managed by the UE according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, uses different idle resource blocks to transmit data to the second UE, thereby reducing interference of data transmission during D 2 D data transmission, and improving the accuracy of data transmission.

The embodiment of the present invention provides a resource application method, which is applied to a D 2 D communication system, as shown in FIG. 4, and includes:

The UE receives the information of the first resource pool sent by the first device.

The first resource pool is a resource that is allocated when the first device performs D 2 D communication for the UE, and the information of the first resource pool is used to indicate that the first device is Information related to resources allocated by the UE when performing the D 2 D communication; the first resource pool includes: at least one resource block; the cluster head is a plurality of UEs that communicate by using a D 2 D link One of the constituent clusters for managing other UEs in the cluster.

Specifically, before receiving the information of the first resource pool sent by the first device, the UE needs to receive the message that the first device sends the identifier information of the first device, so that the UE carries the first device according to the received information. The message of the identification information determines whether the received information of the first resource pool is sent by the base station to the UE or is sent by the cluster head to the UE. If the UE determines that the identity information of the first device is the identity information of the base station, the UE determines that the received information of the first resource pool is sent by the base station to the UE; if the UE determines that the identity information of the first device is the identity information of the cluster head Then, the UE determines that the received information of the first resource pool is sent by the cluster head to the UE.

It should be noted that, if the UE only receives the information of the first resource pool sent by the base station, the UE determines that the UE accesses the network; if the UE receives the information of the first resource pool sent by the base station, the UE also receives the cluster head transmission. If the information of the first resource pool is used, the UE may also determine that the UE accesses the network. If the UE only receives the information of the first resource pool sent by the cluster head, the UE determines that it does not access the network.

It should be noted that, when the UE determines that it does not access the network, the first resource pool indicated by the information of the first resource pool received by the UE is used by the cluster head for pre-configured D 2 D communication. The resource block is used when the UE determines to access the network, and the first resource pool indicated by the information of the first resource pool received by the UE is a resource block allocated by the base station to the UE for D 2 D communication.

4 0. The UE determines status information of the at least one resource block.

Specifically, there are two methods for the UE to determine status information of at least one resource block included in the first resource pool, and the specific method is as follows:

The first method, the UE acquires power information on the at least one resource block, and determines whether the acquired power information is greater than a first threshold.

And if the UE determines that the acquired power information is not greater than the first threshold, the UE determines that state information of the at least one resource block is idle state information.

If the UE determines that the acquired power information is greater than the first threshold, then The UE determines that the status information of the at least one resource block is busy status information.

That is, after the UE learns the first resource pool that is used for the D 2 D communication, the UE needs to determine the state information on each resource block of the at least one resource block included in the first resource pool, that is, the UE. Obtaining received power information on each resource block of the at least one resource block included in the first resource pool, and comparing the received power information on each resource block to a preset first threshold value, If the UE determines that the received power information on the obtained resource block is not greater than the preset first threshold, the UE determines that the status information of the resource block whose received power information is not greater than the preset first threshold is determined to be idle. If the UE determines that the received power information on the obtained resource block is greater than a preset first threshold, the UE determines that the status information of the resource block whose received power information is greater than the preset first threshold is determined as Busy status information.

In a second method, the UE determines whether a pilot signal is carried on the at least one resource block.

And if the UE determines that the pilot signal is not carried on the at least one resource block, the UE determines that state information of the at least one resource block is idle state information.

And if the UE determines that the pilot signal is carried on the at least one resource block, the UE determines that status information of the at least one resource block is busy status information.

That is, after the UE learns the first resource pool that is used for the D 2 D communication, the UE analyzes whether each resource block of the at least one resource block included in the first resource pool carries the pilot information, if the UE Determining that the pilot information is not carried on the resource block, the UE will not carry the pilot information, and the state information of the resource block corresponding to I. is determined as idle state information; if the UE determines that the pilot information is carried on the resource block, The UE determines the state information carrying the resource block corresponding to the pilot information as the busy state information.

4: The UE sends a resource application message to the first device.

The resource application message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block.

Specifically, when the UE determines that the UE accesses the network, the UE may send, to the base station or the cluster head, a resource application that carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. Message. When the UE determines that it does not have access to the network, the UE sends only the resource request message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block to the cluster head.

Further, the UE sends the resource request message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block to the base station, as follows:

In a first method, the UE sends an RRC message carrying the resource application message to the base station.

Exemplarily, the UE may use a service type field in the RRC message to carry the service type of the application resource, and use the resource status field to carry the idle state information of the at least one resource block and/or the busy status information of the at least one resource block. Therefore, when the UE uses the resource allocated for the RRC message allocated by the base station to send the RRC message to the base station, the service type of the application resource, the idle state information of the at least one resource block, and/or the at least one resource block may be used. The busy status information is sent to the base station.

It should be noted that the UE may use other fields in the RRC message to carry the service type of the application resource and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block, which is not limited by the present invention. .

In a second method, the UE sends a MAC CE message carrying the resource application message to the base station.

Exemplarily, the UE may carry the service type of the application resource, and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block in the MAC CE message. That is, according to the format of the MAC CE message, the service type of the application resource is carried in the first four bits of the first byte of the MAC CE message, and the idle state information of at least one resource block is carried in the last four bits of the first byte. The state information carrying the resource block in the second byte is all resource blocks of the idle state information; the service type of the application resource is carried in the first four bits of the third byte, and the last four digits of the third byte Carrying the busy state information of the at least one resource block, and the state information of the resource block in the fourth byte is all the resource blocks of the busy state information, so that the UE allocates resources for transmitting the RRC message to the UE by using the base station, When a MAC CE message is sent to the base station, the service for requesting the resource can be Type, the idle state information of the at least one resource block and/or the busy state information of the at least one resource block are sent to the base station.

It should be noted that the UE carries the service type of the application resource in the MA CCE message, and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block, and may be other methods. Make restrictions.

Further, the U E sends an MA C C E message carrying the resource request message to the cluster head.

Specifically, the method for the UE to send the MAC CE message carrying the resource application message to the cluster head may be similar to the method for the UE to send the MAC CE message carrying the resource application message to the base station, and the present invention is similar to the present invention. I will not repeat them here.

4: The UE receives information about an idle resource block allocated by the first device to the UE.

Specifically, after transmitting, by the UE, the service type carrying the application resource, the idle state information of the at least one resource block, and/or the resource application message of the busy state information of the at least one resource block, the first device sends the first device according to the received The resource request message is used to allocate the idle resource block to the UE, and the message for allocating the idle resource block is sent to the UE, and the UE receives the information of the idle resource block allocated by the first device to the UE, and learns the second information according to the information of the idle resource block. The idle resource block used by the UE when transmitting data, so that the idle resource block is used for data transmission with the second UE, and communication between the UE and the second UE is completed.

It should be noted that, when the UE determines that the UE accesses the network, the UE may receive information about the idle resource block allocated by the base station or the cluster head to the UE; when the UE determines that it does not access the network, the UE can only receive the cluster head allocation. Information for the idle resource block of the UE.

The embodiment of the present invention provides a method for requesting a resource. After receiving the information of the first resource pool sent by the first device, the user equipment UE determines state information of at least one resource block included in the first resource pool, and Transmitting, by the first device, a service type carrying the application resource, idle state information of the at least one resource block, and/or at least one resource block The resource request message of the busy state information, so that the first device sends the information of the idle resource block allocated to the UE to the UE according to the received resource request message. At this time, the UE receives the idle resource allocated by the first device and allocated to the UE. The information of the block, so that the UE uses the idle resource block to perform data transmission with the second UE. In this way, when the cells managed by the two first devices have the same resource, the two first devices can allocate different idles to the UEs managed by the UEs according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, uses different idle resource blocks to send data to the second UE, thereby reducing interference of data transmission during D2D data transmission, and improving the accuracy of data transmission.

The embodiment of the present invention provides a method for applying for a resource, which is applied to a D2D communication system, as shown in FIG. 5, and includes:

501. The first device sends information about the first resource pool to the UE.

Specifically, if the first device includes the base station, the base station sends the information of the first resource pool to the UE in the form of a broadcast, that is, the information about the resource block used for performing the D2D communication is sent to the UE.

If the first device includes a cluster head, the cluster head transmits, in a broadcast form, pre-configured information of the resource block used for D2D communication to the UE; or the cluster head receives the resource used by the base station for D2D communication The information of the block is sent to the UE.

It should be noted that the base station or the cluster head may also send the message of the first resource pool to the UE according to other manners, for example, the base station or the cluster head sends the message of the first resource pool to the UE in a dedicated signaling manner, which is not Make restrictions.

502. The first device receives a resource application message sent by the UE.

The resource application message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. Specifically, when the first device includes the base station or the cluster head, the base station or the cluster head may receive the service type of the application resource, the idle state information of the at least one resource block, and/or the busy of the at least one resource block sent by the UE. The status letter, the resource application cancellation, 3⁄4.

If the first device includes a cluster head, only the cluster head may receive a resource application message sent by the UE carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block.

Further, if the first device includes a base station, the base station receives an RRC message that is sent by the UE and carries the resource application message.

Specifically, if the first device includes the base station, the base station receives the RRC message that is sent by the UE and carries the resource application message, and parses the carried in the received RRC message, when the UE sends the RRC message to the base station. The resource request message further parses out the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block in the resource application message.

Or the base station receives the MAC CE message that is sent by the UE and carries the resource application message.

Specifically, if the first device includes the base station, the base station receives the MAC CE message that is sent by the UE and carries the resource application message, and parses the MAC CE message in the MAC CE message when the UE sends the MAC CE message to the base station. The carried resource application message further parses out the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block in the resource application message.

And if the first device includes a cluster head, the cluster head receives, by the idle resource sub-block, a media access control layer control unit M A C C E message that is sent by the UE and carries the resource application message.

Specifically, if the first device includes a cluster head, the resource sub-block used by the UE to send the resource request message to the cluster head receives the MAC CE that is sent by the UE and carries the resource application message. And parsing the carried resource application message in the MAC CE message, and further parsing the service class of the application resource in the resource application message Type, idle state information of at least one resource block and/or busy state information of at least one resource block.

The first device sends, according to the received resource application message, information about an idle resource block allocated to the UE to the UE.

The idle resource block is the at least one resource block.

Specifically, if the first device includes a base station or a cluster head, the base station or the cluster head may be based on the parsed service type of the application resource, the idle status information of the at least one resource block, and/or the busy status information of the at least one resource block. Obtaining that the resource block state information in the first resource pool for performing D 2 D communication is busy state information or idle state information, and allocating at least one idle resource block to the UE in the resource block in which the state information of the resource block is the idle state information And transmitting information of at least one idle resource block allocated to the UE to the UE.

If the first device includes a cluster head, only the cluster head can learn the D 2 D communication according to the parsed service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. a resource block status message in a resource pool, which is busy status information or idle status information, and allocates at least one idle resource block to the UE in a resource block whose status information of the resource block is idle status information, and allocates at least one allocated to the UE Information of one idle resource block is sent to the UE.

It should be noted that, in a case where the first device is a base station, the base station may carry the information of the at least one idle resource block allocated to the UE in the P DC CH and send the information to the UE; or may allocate at least one idle resource allocated to the UE. The information of the block is carried in the MAC CE message and sent to the UE.

An embodiment of the present invention provides a method for requesting a resource, after the first device sends a message of the first resource pool to the user equipment UE, so that the UE determines, after receiving the information of the first resource pool sent by the first device, The status information of the at least one resource block included in the first resource pool, and sending, to the first device, a resource carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block The application message, the first device sends the information of the idle resource block allocated to the UE to the UE according to the received resource application message, so that the UE uses the idle resource block to perform data transmission with the second UE. In this way, the cells managed by the two first devices have When the same resource is used, the two first devices can allocate different idle resource blocks to the UEs managed by the UEs according to the state information of the first resource pool that the UE manages, that is, the UEs managed by the UEs are different. The idle resource block sends data to the second UE, thereby reducing interference of data transmission during D2D data transmission, and improving the accuracy of data transmission.

The embodiment of the present invention provides a method for applying for a resource, which is applied to a D2D communication system, as shown in FIG. 6, and includes:

601. If the first device includes a cluster head, the cluster head divides each resource block of at least one resource block in the first resource pool into at least one resource sub-block.

The first resource pool is a resource allocated by the first device when performing D2D communication for the UE; the first resource pool includes: at least one resource block; and the cluster head is performed by using a D2D link. One of the clusters of communication consisting of multiple UEs for managing other UEs in the cluster.

Specifically, if the first device includes a cluster head, the cluster head needs to divide the available bandwidth of each resource block of the at least one resource block in the first resource pool into equal resources before sending the information of the first resource pool to the UE. Subblock.

Exemplarily, if the available bandwidth of each resource block of at least one resource block in the first resource pool is 5M, the cluster head may divide the available bandwidth of the 5M into equal 25 resource sub-blocks, and then each resource The available bandwidth of the sub-block is 180KHZ.

It should be noted that, if the first device includes a cluster head, step 601 is performed; if the first device includes the base station, step 602 is directly performed.

602. The first device sends information about the first resource pool to the UE. The UE receives information about the first resource pool sent by the first device.

The information of the first resource pool is used to indicate information about resources allocated by the first device when the D2D communication is performed by the UE.

For details, refer to step 401 and step 501, and the present invention is not described herein again. It should be noted that, the content of the first device is different, and the steps performed are different. In the case that the first device includes a cluster head, steps 603-607 are performed; in the case where the first device includes a base station, Steps 604, 606-607 are performed. The cluster head sends the first resource allocation information to the UE; the UE receives the first resource allocation information sent by the cluster head.

The first resource allocation information is used to indicate an idle resource sub-block that is used by the cluster head to allocate a resource request message to the UE.

Specifically, if the first device includes a cluster head, the cluster head may send the indication to the UE after each resource block of the at least one resource block in the first resource pool is divided into at least one resource sub-block. The first resource allocation information of the idle resource sub-block used by the cluster head is allocated to the UE when the resource request message is sent. At this time, the UE receives the first resource allocation information sent by the cluster head. And causing the UE to send a resource request message to the cluster head according to the idle resource sub-block indicated in the first resource allocation information.

6 04. The UE determines status information of the at least one resource block.

For details, refer to step 4 0 2, and the present invention is not described herein again.

If the first device includes the cluster head, the cluster head sends a superframe splitting information to the UE in a first time frame of the superframe splitting information in a period of a superframe; The superframe division information sent by the cluster head is received in a first time frame of the superframe division information in a period of a superframe.

The superframe division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame; as shown in FIG. 7, where the first time frame is The cluster head sends information of the first resource pool, the superframe division information and the frame of the first resource allocation information; the second time frame is a frame in which the UE sends the application resource message to the cluster head The third time frame and the fifth time frame are frames in which the UE sends data to the second UE; the fourth time frame is that the cluster head sends a cluster head to the UE and allocates to the UE. The frame of information for the idle resource block.

Specifically, if the first device includes a cluster head, the cluster head periodically transmits to the UE, including the first time frame, the second time frame, the third time frame, the fourth time frame, and the The superframe division information of the five time frames. At this time, the UE receives the superframe division information that is sent by the cluster head, including the first time frame, the second time frame, the third time frame, the fourth time frame, and the fifth time frame.

Further, the UE divides information in a superframe by using a time period of a superframe as a period In the first time frame, when receiving the superframe division information sent by the cluster head, the information of the first resource pool is received.

The UE sends a resource application message to the first device; the first device receives a resource application message sent by the UE.

For details, refer to step 4 0 3 and step 5 0 2 , and the present invention is not described herein again. It should be noted that, if the first device includes a cluster head, the sending, by the UE, the resource request message to the first device includes: sending, by the UE, a resource request message to the cluster head according to the received superframe splitting information. .

Specifically, if the first device includes a cluster head, the UE determines an idle resource sub-block, and in the second time frame in the super-frame split information, uses the idle resource sub-block to the cluster The header sends a MAC CE message carrying the resource request message.

Further, the method for the UE to determine the idle resource sub-block is as follows: In the first method, the UE determines the idle resource sub-block according to the received first resource allocation information sent by the cluster head.

Specifically, after receiving the first resource allocation information sent by the cluster head, the UE parses the resource sub-block allocated to the UE for transmitting the resource application message in the first resource allocation information, thereby determining the idle resource sub-block. And then, in the second time frame in the superframe splitting information, the UE sends the MAC CE message carrying the resource request message to the cluster head by using the idle resource subblock.

In a second method, the UE determines the idle resource sub-block according to the information of the first resource pool.

The information of the first resource pool is further used to indicate the at least one resource. Each resource block of the source block is divided into related information of at least one resource sub-block.

Specifically, after receiving the information of the first resource pool, the UE parses the information about each resource block of the at least one resource block indicated by the information in the information of the first resource pool into at least one resource sub-block, that is, the first information is obtained. Decoding information of each resource block of at least one resource block in the resource pool, thereby selecting one idle resource sub-block in one of the resource blocks, and determining the idle resource sub-block as an idle resource sub-block, thereby causing the UE to In the second time frame in the superframe division information, the idle resource sub-block is used to send a MAC CE message carrying the resource application message to the cluster head.

The first device sends, according to the received resource application message, information about an idle resource block allocated to the UE to the UE; the UE receives the first device and allocates the information to the UE. Information about the free resource block.

For details, refer to Step 5 0 3 and Step 4 04, and the present invention is not described herein again. It is to be noted that the information that the first device sends the idle resource block allocated to the UE to the UE according to the received resource request message includes: if the first device includes a cluster head, the cluster head And transmitting, according to the superframe splitting information and the received resource request message, information about an idle resource block allocated to the UE to the UE.

Specifically, the cluster head sends, according to the received resource application message, the allocated resource sub-block to the UE to allocate to the UE in the fourth time frame in the super-frame split information. Information of the free resource block.

That is, the cluster head learns the resources in the first resource pool for performing D 2 D communication according to the parsed service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. The block status information is busy status information or idle status information, and at least one idle resource block is allocated to the UE in the resource block whose status information is idle status information, and the UE is used in the fourth time frame in the superframe division information. The idle resource sub-block used when the resource request message is sent to the cluster head, and the information about the at least one idle resource block allocated to the UE is sent to the UE, so that the cluster head is the same as when the UE sends the resource request message to the cluster head. When the idle resource sub-block sends the information of the at least one idle resource block allocated to the UE to the UE, the identifier information of the UE is not required to be carried, and the resources occupied by the identifier information of the UE are saved. The embodiment of the present invention provides a method for requesting a resource. After receiving the information of the first resource pool sent by the first device, the user equipment UE determines state information of at least one resource block included in the first resource pool, and The first device sends a resource request message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block, so that the first device sends the message to the UE according to the received resource request message. The information about the idle resource block allocated to the UE is sent. At this time, the UE receives the information of the idle resource block allocated by the first device and allocated to the UE, so that the UE uses the idle resource block to perform data transmission with the second UE. In this way, when the cells managed by the two first devices have the same resource, the two first devices can allocate different idles to the UEs managed by the UEs according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, uses different idle resource blocks to send data to the second UE, thereby reducing interference of data transmission during D2D data transmission, and improving the accuracy of data transmission.

The embodiment of the present invention provides a UE, which is applied to a D2D communication system. As shown in FIG. 8, the method includes: a receiver 801, a transmitter 802, a memory 803, and a receiver 801, a transmitter 802, and a memory 803, respectively. Processor 804.

A set of program codes is stored in the memory 803, and the processor 804 is used to call the program code stored in the memory 803. Receiver 801, transmitter 802 and processor 804 are used to perform the following operations:

The receiver 801 is configured to receive information about a first resource pool sent by the first device. The first resource pool is a resource that is allocated when the first device performs device-to-device D2D communication for the UE, and the information of the first resource pool is used to indicate that the first device is the UE. And the related information of the resources allocated when the D2D communication is performed; the first resource pool includes: at least one resource block; the cluster head is one of a cluster of multiple UEs that communicates by using a D2D link Used to manage other UEs in the cluster.

Specifically, the receiver 801, before receiving the information of the first resource pool sent by the first device, needs to receive the identifier information that is sent by the first device and carries the first device, so that the receiver 801 receives the To the standard carrying the first device The message identifying the information determines whether the received information of the first resource pool is sent by the base station to the UE or is sent by the cluster head to the UE. If it is determined that the identifier information of the first device is the identifier information of the base station, determining that the received information of the first resource pool is sent by the base station to the UE; and determining the identifier information of the first device carried in the information of the first resource pool For the identification information of the cluster head, it is determined that the received information of the first resource pool is sent by the cluster head to the UE.

It should be noted that, if the receiver 801 only receives the information of the first resource pool sent by the base station, it determines that the UE accesses the network itself; if receiving the information of the first resource pool sent by the base station, If the information of the first resource pool sent by the cluster head is received, the UE may determine that the UE accesses the network. If only the information of the first resource pool sent by the cluster head is received, it is determined that the UE does not access the network.

It should be noted that, when the receiver 801 determines that the UE does not access the network, the first resource pool indicated by the information of the received first resource pool is pre-configured for the D2D communication by the cluster head. The first resource pool indicated in the received information of the first resource pool is a resource block allocated by the base station to the UE for D2D communication when determining that the UE itself accesses the network.

The processor 804 is configured to determine status information of the at least one resource block. Specifically, the processor 804 has two methods for determining status information of at least one resource block included in the first resource pool, and the specific method is as follows:

The first method, the processor 804 is specifically configured to acquire power information on the at least one resource block, and determine whether the acquired power information is greater than a first threshold.

That is, the processor 804 needs to perform state information on each resource block of at least one resource block included in the first resource pool after learning the first resource pool used by the UE itself for performing D2D communication. OK, that is, to get to include in the first resource pool Receiving received power information on each resource block of one resource block, and comparing the received power information on each resource block to a preset first threshold value, if it is determined on the acquired resource block If the received power information is not greater than the preset first threshold, the state information of the resource block whose received power information is not greater than the preset first threshold is determined as idle state information; if it is determined that the acquired resource block is The received power information is greater than the preset first threshold, and the status information of the resource block whose received power information is greater than the preset first threshold is determined as the busy status information.

The second method, the processor 804 is specifically configured to determine whether a pilot signal is carried on the at least one resource block.

That is, the processor 804, after learning the first resource pool used by the UE itself for D2D communication, parsing whether each resource block of at least one resource block included in the first resource pool carries If there is any pilot information, if it is determined that the pilot information is not carried on the resource block, the state information of the resource block that does not carry the pilot information is determined as idle state information; if it is determined that the pilot information is carried on the resource block, Then, the state information carrying the resource block corresponding to the pilot information is determined as the busy state information.

The transmitter 80 02 is configured to send a resource request message to the first device. The resource application message carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block.

Specifically, when the UE determines that the UE accesses the network, the transmitter 802 may send, to the base station or the cluster head, a service type carrying the application resource, idle state information of the at least one resource block, and/or at least one resource block. The busy status letter, the resource application cancellation, 3⁄4.

When the UE determines that it does not have access to the network, the transmitter 802 sends only the service type carrying the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block to the cluster head. Resource application message.

Further, the transmitter 802 sends a service carrying the application resource to the base station. There are two methods for the type, the idle state information of at least one resource block, and/or the resource request message of the busy state information of at least one resource block, as follows:

The first method, the transmitter 802, when the receiver 810 receives the information of the first resource pool sent by the base station, is configured to send, to the base station, the resource request message Radio Resource Control Protocol RRC message.

Exemplarily, the transmitter 202 may use a service type field in an RRC message to carry a service type of the application resource, and use a resource status field to carry idle state information and/or at least one resource of the at least one resource block. The busy state information of the block, so that when the RRC message is sent to the base station by the base station to allocate the RRC message to the UE, the service type of the application resource, the idle state information of the at least one resource block, and/or The busy status information of at least one resource block is sent to the base station.

It should be noted that the transmitter 202 may use other fields in the RRC message to carry the service type of the application resource and the idle status information of the at least one resource block, and/or the busy status information of the at least one resource block. The invention is not limited thereto.

In a second method, the transmitter 802, when the receiver 819 receives the information about the first resource pool sent by the base station, is configured to send, to the base station, the resource request message The MAC CE message.

Exemplarily, the sender 802 may carry the service type of the application resource, and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block in the MAC CE message. That is, according to the format of the MAC CE message, the service type of the application resource is carried in the first four bits of the first byte of the MAC CE message, and the idle state information of at least one resource block is carried in the last four bits of the first byte. The state information carrying the resource block in the second byte is all resource blocks of the idle state information; the service type of the application resource is carried in the first four bits of the third byte, and the last four digits of the third byte Carrying the busy state information of the at least one resource block, and carrying the state information of the resource block in the fourth byte as all the resource blocks of the busy state information, so as to allocate resources to the UE for transmitting the RRC message in the base station, When the base station sends the MAC CE message, the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block may be sent to the base station. It should be noted that, the transmitter 802, in the MAC CE message, carries the service type of the application resource, and the idle state information of the at least one resource block and/or the busy state information of the at least one resource block, and may be other methods. The invention is not limited thereto.

Further, the transmitter 802 is configured to send, to the cluster head, a MAC CE message carrying the resource application message.

Specifically, the method for the sender 802 to send the MAC CE message carrying the resource request message to the cluster head may be similar to the method for sending the MAC CE message carrying the resource application message to the base station. The present invention will not be described again herein.

The receiver 801 is further configured to receive information about an idle resource block allocated by the first device to the UE.

Specifically, the receiver 801 sends, to the first device, the resource that carries the service type of the application resource, the idle state information of the at least one resource block, and/or the busy status information of the at least one resource block. After the application message, the information about the idle resource block allocated by the first device to the UE is received, and the idle resource block used when sending data to the second UE is learned according to the information of the idle resource block, thereby using the idle resource block and the second The UE performs data transmission to complete communication between the UE and the second UE.

It should be noted that, when determining that the UE itself accesses the network, the receiver 801 may receive information about an idle resource block allocated by the base station or the cluster head to the UE; when it is determined that the network does not access the network, it can only receive The information that the cluster head allocates to the idle resource block of the UE.

Further, the receiver 801 is further configured to receive, according to a time length of the superframe, a superframe division information sent by the cluster head in a first time frame of the superframe division information.

The superframe splitting information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame; wherein, the first time frame is sent by the cluster head ― resource pool information, the superframe division information and the first resource allocation a frame of information; the second time frame is a frame in which the UE sends the application resource message to the cluster head; the third time frame and the fifth time frame are a frame in which the UE transmits data; the fourth time frame is a frame in which the cluster head sends information of an idle resource block allocated by the cluster head to the UE to the UE.

The information that is used by the receiver 810 to receive the first resource pool sent by the first device includes:

The receiver 810 is configured to receive the superframe division information sent by the cluster head in the first time frame of the superframe division information in a period of the duration of the superframe, and receive the first resource pool. information.

The sending, by the transmitter 802, the resource request message to the first device includes: further, the information of the first resource pool is further used to indicate that each resource block of the at least one resource block is divided into Information about at least one resource sub-block.

Further, the processor 804 is further configured to determine an idle resource sub-block.

Specifically, the processor 804 determines two methods for the idle resource sub-block, as follows:

The first method, the processor 804 is further configured to determine, according to the information of the first resource pool, an idle resource sub-block.

The idle resource sub-block is one resource sub-block in the idle resource block. Specifically, the processor 8 04, after receiving the information of the first resource pool, parses out that each resource block of the at least one resource block indicated in the information of the first resource pool is divided into at least one resource sub-block. The information, that is, the partition information of each resource block of at least one resource block in the first resource pool is obtained, so that one idle resource sub-block is selected in one of the resource blocks, and the idle resource sub-block is determined as the idle resource sub-block. And in the second time frame in the superframe splitting information, the idle resource subblock is used to send a MAC CE message carrying the resource request message to the cluster head.

The second method, the processor 804 is further configured to receive the first resource allocation information sent by the cluster head, and determine the idle resource sub-block according to the first resource allocation information.

The first resource allocation information is used to indicate that the cluster head is allocated to the UE for sending the resource. The resource sub-block that is used when the source requests the message.

Specifically, the processor 804, after receiving the first resource allocation information sent by the cluster head, parsing, in the first resource allocation information, the resource sub-blocks used for transmitting the resource application message allocated to the UE, Therefore, the idle resource sub-block is determined, and in the second time frame in the super-frame splitting information, the idle resource sub-block is used to send the MAC CE message carrying the resource application message to the cluster head.

And the sending, by the sender, the resource request message to the cluster head according to the superframe splitting information, specifically:

The transmitter 80 2 is configured to send, in the second time frame in the superframe splitting information, the idle resource sub-block determined by the processor 804 to the cluster head A MAC CE message carrying the resource request message.

The embodiment of the present invention provides a user equipment (UE), after receiving the information of the first resource pool sent by the first device, the UE determines the state information of the at least one resource block included in the first resource pool, and sends the status information to the first device. Sending a resource request message carrying the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block, so that the first device sends the allocation to the UE according to the received resource request message. The information about the idle resource block of the UE, at this time, the UE receives the information of the idle resource block allocated by the first device and allocated to the UE, so that the UE uses the idle resource block to perform data transmission with the second UE. In this way, when the cells managed by the two first devices have the same resource, the two first devices can allocate different idles to the UEs managed by the UEs according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, uses different idle resource blocks to transmit data to the second UE, thereby reducing interference of data transmission during D 2 D data transmission, and improving the accuracy of data transmission. The embodiment of the present invention provides a device, which is applied to a D2D communication system. As shown in FIG. 9, the device includes: a transmitter 901, a receiver 902, a memory 903, and a transmitter 901, a receiver 902, and a memory 903, respectively. Processor 904.

A set of program codes is stored in the memory 903, and the processor 904 is used to call the program code stored in the memory 903. Transmitter 901, receiver 902 and processor 904 are used to perform the following operations:

The transmitter 901 is configured to send information about the first resource pool to the user equipment UE. The first resource pool is a resource allocated by the device when the device performs device-to-device D2D communication; the information of the first resource pool is used to indicate that the device performs the D2D for the UE Information about resources allocated during communication; the first resource pool includes: at least one resource block; the cluster head is one of a cluster of multiple UEs that communicates with a D2D link, for management Other UEs in the cluster.

Specifically, if the first device includes a base station, the transmitter 901 sends the information of the first resource pool to the UE in a broadcast manner, that is, sends information of the resource block used for performing D2D communication to the UE.

If the first device includes a cluster head, the transmitter 901 transmits, in a broadcast form, pre-configured information for resource blocks used for D2D communication to the UE; or when receiving the base station for D2D communication. After the information of the used resource block, the transmitter 901 sends the information to the UE.

It should be noted that the sender 901 may further send a message of the first resource pool to the UE according to other manners, for example, the sender 901 sends a message of the first resource pool to the UE in a dedicated signaling manner. This is not a limitation.

The receiver 902 is configured to receive a resource application message sent by the UE.

Specifically, if the device includes a base station, the receiver 902 may receive, by the UE, a service type carrying the application resource, idle state information of the at least one resource block, and/or busy state information of the at least one resource block. Resource application message.

If the device includes a cluster head, the device may also receive the application resource sent by the UE. A service request message of a service type, idle state information of at least one resource block, and/or busy state information of at least one resource block.

Further, if the device includes a base station, the receiver 902 is configured to receive a radio resource control protocol RRC message that is sent by the UE and that carries the resource application message.

Specifically, if the device includes a base station, the receiver 902 receives an RRC message that is sent by the UE and carries the resource application message when the UE sends an RRC message to the base station, and receives the RRC message. The resource request message is parsed in the RRC message, and the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block are further parsed in the resource application message.

Or the receiver 902 is configured to receive the MAC CE message that is sent by the UE and that carries the resource request message.

Specifically, the receiver 902 receives the MAC CE message that is sent by the UE and carries the resource request message, and parses the MAC CE message in the MAC CE message when the UE sends the MAC CE message to the base station. The carried resource application message further parses out the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block in the resource application message.

If the device includes a cluster head, the receiver 902 is configured to receive, by using an idle resource sub-block, a media access control layer control unit MAC CE message that is sent by the UE and carries the resource application message.

Specifically, if the device includes a cluster head, the receiver 902 receives, by the idle resource sub-block, the MACCE that is sent by the UE and carries the resource request message, and parses the bearer in the MAC CE message. The resource request message further parses out the service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block in the resource application message.

The transmitter 910 is further configured to send information about an idle resource block allocated to the UE to the UE according to the resource request message. The idle resource block is the at least one resource block.

Specifically, if the device includes a base station, the sender 901 may learn to perform D2D according to the parsed service type of the application resource, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. The resource block state information in the first resource pool of the communication is the busy state information or the idle state information, and the UE is allocated at least one idle resource block in the resource block whose state information of the resource block is the idle state information, and is allocated to the UE. Information of at least one idle resource block is transmitted to the UE.

If the device includes a cluster head, the transmitter 901, in the case that the device includes a cluster head, according to the parsed service type of the application resource, the idle state information of the at least one resource block, and/or the at least one resource block The busy state information, the resource block state information in the first resource pool for performing D2D communication is the busy state information or the idle state information, and the UE is allocated at least one idle in the resource block whose state information of the resource block is the idle state information. a resource block, and transmitting information of at least one idle resource block allocated to the UE to the UE.

It should be noted that, if the device includes a base station, the transmitter 901 may carry information of at least one idle resource block allocated to the UE in the PDCCH and send the information to the UE; or may allocate at least one idle resource allocated to the UE. The information of the block is carried in the MAC CE message and sent to the UE.

Further, if the device includes a cluster head, the transmitter 901 is further configured to send the superframe splitting information to the UE in a first time frame of the superframe splitting information, with a period of a superframe as a period. The superframe division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame, and a fifth time frame.

The first time frame is information that the first resource pool is sent by the cluster head, the superframe division information and the frame of the first resource allocation information, and the second time frame is that the UE is to the cluster. The header sends the frame of the application resource message; the third time frame and the fifth time frame are frames in which the UE sends data to the second UE; the fourth time frame is the cluster head to the The UE transmits a frame of information that the cluster head allocates to the idle resource block of the UE.

The transmitter 901 is configured to send, to the UE, a specific packet of information of the first resource pool. Includes:

The transmitter 901 is configured to send the first resource pool when sending the superframe splitting information to the UE in a first time frame of the superframe splitting information in a period of a superframe. Information.

The information that is used by the sender 901 to send the idle resource block allocated to the UE to the UE according to the resource request message includes:

The transmitter 901 is configured to send information about an idle resource block allocated to the UE to the UE according to the superframe split information and the resource request message.

If the device includes a cluster head, the processor 904 is configured to divide each resource block of at least one resource block in the first resource pool into at least one resource sub-block.

Specifically, if the device includes a cluster head, the processor 904 needs to allocate each resource block of at least one resource block in the first resource pool before the transmitter 901 sends the information of the first resource pool to the UE. The available bandwidth is divided into equal resource sub-blocks.

Exemplarily, if the available bandwidth of each resource block of at least one resource block in the first resource pool is 5M, the processor 904 may divide the 5M available bandwidth into equal 25 resource sub-blocks. The available bandwidth of each resource sub-block is 180KHZ.

The transmitter 901 is further configured to send the first resource allocation information to the UE. The first resource allocation information is used to indicate an idle resource sub-block that is used by the sender 901 to allocate a resource request message to the UE.

Further, the information that is used by the transmitter 901 to send the idle resource block allocated to the UE to the UE according to the superframe split information and the resource request message includes:

The transmitter 901, according to the resource application message, in the fourth time frame in the superframe split information, send the allocated resource to the UE to the UE in the idle resource sub-block Information about idle resource blocks.

That is, the transmitter 901 is configured to perform D2D communication according to the service type of the application resource parsed by the receiver 902, the idle state information of the at least one resource block, and/or the busy state information of the at least one resource block. The resource block status information in the first resource pool is busy status information or idle status information, and the status information is idle. The resource block of the state information allocates at least one idle resource block to the UE, and in the fourth time frame in the superframe split information, the idle resource sub-block used by the UE to send the resource request message to the cluster head to the UE Transmitting information of at least one idle resource block allocated to the UE, such that when the same idle resource sub-block that is used when the UE sends the resource request message to the cluster head transmits information of the at least one idle resource block allocated to the UE to the UE, The identifier information of the UE is not required to be carried, and the resources occupied by the identifier information of the UE are saved.

An embodiment of the present invention provides a system for resource application, as shown in FIG. 10, including: a user equipment UE 1 0 0 1 and a first device 1 0 0 2 . among them,

The UE 1 0 0 1 is the UE described in the foregoing embodiment.

The first device 1 0 0 2 is the device described in the foregoing embodiment.

The embodiment of the present invention provides a method, a device, and a system for requesting a resource, after the device sends a message of the first resource pool to the user equipment UE, so that the UE receives the first resource pool sent by the device. After the information, determining status information of the at least one resource block included in the first resource pool, and sending, to the device, the service type carrying the application resource, the idle state information of the at least one resource block, and/or the busy of the at least one resource block The resource request message of the status information, the device sends the information of the idle resource block allocated to the UE to the UE according to the received resource application message, so that the UE The idle resource block is used for data transmission with the second UE. In this way, when the cells managed by the two devices have the same resources, the two devices can allocate different idles to the UEs managed by the UEs according to the state information of the first resource pool reported by the UE. The resource block, that is, the UE managed by itself, transmits data to the second UE by using different idle resource blocks, thereby reducing interference of data transmission during D 2 D data transmission, and improving the accuracy of data transmission.

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

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

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

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a removable hard disk, a read only memory (Re a d-Only lyme), a random access memory (Ra n dom A ccess) Me mo ry (referred to as RAM), disk or optical disc, and other media that can store program code. It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

claims

1. A user equipment UE, applied in a device-to-device D2D communication system, which is characterized by including:

A receiving unit, configured to receive information about the first resource pool sent by the first device; wherein the first resource pool includes: at least one resource block;

Determining unit, configured to determine status information of the at least one resource block;

A sending unit, configured to send a resource application message to the first device; wherein the resource application message carries the service type of the requested resource, the idle status information of at least one resource block, and/or the busy status of at least one resource block. information;

The receiving unit is further configured to receive information about the idle resource blocks allocated by the first device to the UE; wherein, the information about the idle resource blocks is used to instruct the UE to use the idle resource blocks and the first The second UE performs data transmission; the idle resource block is the at least one resource block.

2. The device according to claim 1, characterized in that,

The determination unit used to determine the status information of the at least one resource block specifically includes:

The determining unit is configured to obtain the power information on the at least one resource block; if it is determined that the obtained power information is not greater than the first threshold value, determine that the status information of the at least one resource block is idle status information. ;

If it is determined that the obtained power information is greater than the first threshold value, then determine that the status information of the at least one resource block is busy status information; or,

The determining unit is configured to determine whether the at least one resource block carries a pilot signal, and if it is determined that the at least one resource block does not carry the pilot signal, determine the status information of the at least one resource block. For idle status information;

If it is determined that the at least one resource block carries the pilot signal, it is determined that the status information of the at least one resource block is busy status information.

3. The device according to claim 1 or 2, characterized in that,

The receiving unit is also configured to receive the superframe division information sent by the cluster head within the first time frame of the superframe division information with the time length of the superframe as a period; wherein, the superframe The division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame and a fifth time frame; wherein, the first time frame is the information for the cluster head to send the first resource pool, The frame of the superframe division information and the first resource allocation information; The second time frame is the frame in which the UE sends the resource application message to the cluster head; The third time frame and the fifth time frame The time frame is a frame in which the UE sends data to the second UE; the fourth time frame is a frame in which the cluster head sends to the UE information about the idle resource blocks allocated by the cluster head to the UE;

The receiving unit is configured to receive the information about the first resource pool sent by the first device and specifically includes:

The receiving unit is configured to receive the information of the first resource pool when receiving the superframe division information sent by the cluster head within the first time frame of the superframe division information with the time length of the superframe as a period;

The sending unit configured to send a resource application message to the first device specifically includes: the sending unit configured to send a resource application message to the cluster head according to the superframe division information.

4. The device according to claim 3, characterized in that: the information of the first resource pool is used to indicate relevant information that each resource block of the at least one resource block is divided into at least one resource sub-block;

The determining unit is further configured to determine an idle resource sub-block according to the information of the first resource pool; wherein the idle resource sub-block is one of the idle resource blocks; or,

The determining unit is also configured to receive the first resource allocation information sent by the cluster head; and determine the idle resource sub-block according to the first resource allocation information; wherein the first resource allocation information is used to indicate the cluster head. Resource sub-blocks allocated to the UE and used when sending resource application messages.

5. The device according to claim 4, characterized in that,

The sending unit is configured to send a resource application message to the cluster head according to the superframe division information, specifically including:

The sending unit is used for the second time frame in the superframe division information. Within, the idle resource sub-block determined by the determination unit is used to send a media access control layer control unit MAC CE message carrying the resource application message to the cluster head.

6. The device according to claim 1 or 2, characterized in that,

The sending unit is configured to send a resource application message to the first device. The sending unit is configured to: when the receiving unit receives the information about the first resource pool sent by the base station, send the resource application message to the first device. The base station sends a radio resource control protocol RRC message carrying the resource application message; or,

Send the MAC CE message carrying the resource application message to the base station.

7. A device, applied in the D2D communication system, characterized in that it includes: a sending unit, configured to send the information of the first resource pool to the user equipment UE; wherein the first resource pool includes: At least one resource block;

A receiving unit configured to receive a resource application message sent by the UE; wherein the resource application message carries the service type of the requested resource, idle status information of at least one resource block, and/or busy status information of at least one resource block. ;

The sending unit is further configured to send information about idle resource blocks allocated to the UE to the UE according to the resource application message; wherein the idle resource block is the at least one resource block.

8. The device according to claim 7, characterized in that,

If the device includes a cluster head, the sending unit is further configured to send the superframe division information to the UE within the first time frame of the superframe division information with the time length of the superframe as a period; the superframe The frame division information includes: a first time frame, a second time frame, a third time frame, a fourth time frame and a fifth time frame; wherein, the first time frame is the information for the cluster head to send the first resource pool. , the frame of the superframe division information and the first resource allocation information; the second time frame is the frame in which the UE sends the resource application message to the cluster head; the third time frame and the third time frame The fifth time frame is the frame in which the UE sends data to the second UE; the fourth time frame is the frame in which the cluster head sends to the UE information about the idle resource blocks allocated by the cluster head to the UE;

The sending unit is configured to send the information of the first resource pool to the UE and specifically includes: The sending unit is configured to divide the information in the superframe with the time length of the superframe as a period. In the first time frame, when sending the superframe division information to the UE, and sending the information of the first resource pool;

The sending unit is configured to send information about idle resource blocks allocated to the UE to the UE according to the resource application message, which specifically includes:

The sending unit is configured to send information about idle resource blocks allocated to the UE to the UE according to the superframe division information and the resource application message.

9. The device according to claim 7 or 8, further comprising: if the device includes a cluster head, a processing unit configured to convert each resource of at least one resource block in the first resource pool to The block is divided into at least one resource sub-block;

The sending unit is further configured to send first resource allocation information to the UE; the first resource allocation information is used to indicate the idle space allocated by the sending unit to the UE for sending a resource application message. Resource sub-block.

10. The device according to claim 9, wherein the receiving unit is configured to receive the resource application message sent by the UE and specifically includes:

If the device includes a cluster head, the receiving unit is configured to receive the media access control layer control unit MAC CE message sent by the UE carrying the resource application message through the idle resource sub-block; the idle resource The sub-block is a resource sub-block used by the UE when sending the resource application message to the cluster head.

1 1. The device according to claim 10, characterized in that, the sending unit is configured to send the idle resources allocated to the UE to the UE according to the superframe division information and the resource application message. Block information specifically includes:

The sending unit is configured to use the idle resource sub-block to send the resource allocated to the UE to the UE in the fourth time frame in the superframe division information according to the resource application message. Information about the free resource blocks.

12. The device according to claim 7, wherein the receiving unit is configured to receive the resource application message sent by the UE specifically including:

If the device includes a base station, the receiving unit is configured to receive a radio resource control protocol RRC message sent by the UE and carrying the resource application message; or,

Used to receive the MAC CE carrying the resource application message sent by the UE information.

13. A method of resource application, applied in the D2D communication system, characterized by including:

The user equipment UE receives the information of the first resource pool sent by the first device; wherein the first resource pool includes: at least one resource block;

The UE determines status information of the at least one resource block;

The UE sends a resource application message to the first device; wherein the resource application message carries the service type of the requested resource, idle status information of at least one resource block, and/or busy status information of at least one resource block;

The UE receives information about the idle resource blocks allocated by the first device to the UE; wherein, the information about the idle resource blocks is used to instruct the UE to use the idle resource blocks to perform data transmission with the second UE. ; The free resource block is the at least one resource block.

14. The method according to claim 13, wherein the UE determines the status information of the at least one resource block including:

The UE obtains power information on the at least one resource block;

If the UE determines that the obtained power information is not greater than the first threshold value, the UE determines that the status information of the at least one resource block is idle status information;

If the UE determines that the obtained power information is greater than the first threshold value, the UE determines that the status information of the at least one resource block is busy status information; or, the UE determines that the at least one resource block Whether the pilot signal is carried on the block, if the UE determines that the pilot signal is not carried on the at least one resource block, the UE determines that the status information of the at least one resource block is idle status information;

If the UE determines that the at least one resource block carries the pilot signal, the UE determines that the status information of the at least one resource block is busy status information.

15. The method according to claim 13 or 14, characterized in that, before the UE sends a resource application message to the first device, it further includes:

The UE takes the time length of the superframe as a period and receives the superframe division information sent by the cluster head within the first time frame of the superframe division information; wherein, the superframe division information includes: the first time frame, the second time frame. Time frame, third time frame, fourth time frame and fifth time frame; Wherein, the first time frame is the frame in which the cluster head sends the information of the first resource pool, the superframe division information and the first resource allocation information; the second time frame is the frame in which the UE transmits information to the cluster The third time frame and the fifth time frame are the frames in which the UE sends data to the second UE; the fourth time frame is the frame in which the cluster head sends data to the second UE; The UE sends a frame of information about the idle resource blocks allocated by the cluster head to the UE;

The information about the first resource pool sent by the first device that the UE receives includes:

The UE receives the superframe division information sent by the cluster head within the first time frame of the superframe division information with the time length of the superframe as a period, and receives the information of the first resource pool;

The UE sending a resource application message to the first device includes:

The UE sends a resource application message to the cluster head according to the received superframe division information.

16. The method according to claim 15, characterized in that the information of the first resource pool is used to indicate that each resource block of the at least one resource block is divided into at least one resource sub-block. information;

Before the UE sends a resource application message to the cluster head according to the received superframe division information, it also includes:

The UE determines an idle resource sub-block according to the information of the first resource pool; wherein the idle resource sub-block is one of the idle resource blocks; or,

The UE receives the first resource allocation information sent by the cluster head;

The UE determines the idle resource sub-block according to the first resource allocation information.

17. The method according to claim 16, wherein the UE sending a resource application message to the cluster head according to the received superframe division information includes:

The UE uses the idle resource sub-block to send the media access control layer control unit MAC carrying the resource application message to the cluster head in the second time frame in the superframe division information. C E message.

18. The method according to claim 13 or 14, characterized in that sending the resource application message by the UE to the first device includes: When receiving the information about the first resource pool sent by the base station, the UE sends a radio resource control protocol RRC message carrying the resource application message to the base station; or,

The UE sends the MAC CE message carrying the resource application message to the base station.

19. A method of resource application, applied in the D2D communication system, characterized by including:

The first device sends the information of the first resource pool to the user equipment UE; wherein, the first resource pool includes: at least one resource block;

The first device receives the resource application message sent by the UE; wherein the resource application message carries the service type of the requested resource, idle status information of at least one resource block, and/or busy status information of at least one resource block. ;

The first device sends information about idle resource blocks allocated to the UE to the UE according to the received resource application message; wherein the idle resource block is the at least one resource block.

20. The method according to claim 19, characterized in that, before the first device receives the resource application message sent by the UE, it further includes:

If the first device includes a cluster head, the cluster head sends the superframe division information to the UE within the first time frame of the superframe division information with the time length of the superframe as a period; the superframe division information includes: The first time frame, the second time frame, the third time frame, the fourth time frame and the fifth time frame; wherein, the first time frame is for the cluster head to send information about the first resource pool, and the superframe a frame of division information and first resource allocation information; the second time frame is a frame in which the UE sends the resource application message to the cluster head; the third time frame and the fifth time frame are the The frame in which the UE sends data to the second UE; the fourth time frame is the frame in which the cluster head sends to the UE information about the idle resource blocks allocated by the cluster head to the UE;

The first device sending the first resource pool information to the UE includes:

The cluster head takes the time length of the superframe as a period and sends the first resource when sending the superframe division information to the UE in the first time frame of the superframe division information. Pool information;

The first device sends the information about the idle resource blocks allocated to the UE to the UE according to the received resource application message, including:

The cluster head sends the information of the idle resource blocks allocated to the UE to the UE according to the superframe division information and the received resource application message.

21. The method according to claim 19 or 20, characterized in that, before the device sends the information of the first resource pool to the UE, it further includes:

If the device includes a cluster head, the cluster head divides each resource block of at least one resource block in the first resource pool into at least one resource sub-block;

After the device sends the information of the first resource pool to the UE, the method further includes: the cluster head sending the first resource allocation information to the UE; the first resource allocation information is used to indicate that the cluster head allocates the resource to the UE. Describes the idle resource sub-blocks used by the UE when sending resource application messages.

22. The method according to claim 21, wherein the first device receiving the resource application message sent by the UE includes:

If the first device includes a cluster head, the cluster head receives the media access control layer control unit MAC CE message carrying the resource application message sent by the UE through the idle resource sub-block; the idle resource sub-block It is the resource sub-block used when the UE sends the resource application message to the cluster head.

23. The method according to claim 22, characterized in that, the cluster head sends the idle time allocated to the UE to the UE according to the superframe division information and the received resource application message. Resource block information includes:

The cluster head uses the idle resource sub-block to send the resource allocated to the UE to the UE in the fourth time frame in the superframe division information according to the received resource application message. Information about the free resource blocks.

24. The method according to claim 19, wherein the first device receiving the resource application message sent by the UE includes:

If the first device includes a base station, the base station receives the Radio Resource Control Protocol RRC message sent by the UE and carrying the resource application message; or, The base station receives the MAC CE message carrying the resource application message sent by the UE.

25. A user equipment UE, applied in the D2D communication system, characterized by including:

A receiver, configured to receive information about the first resource pool sent by the first device; wherein the first resource pool includes: at least one resource block;

A processor configured to determine status information of the at least one resource block;

A transmitter configured to send a resource application message to the first device; wherein the resource application message carries the service type of the requested resource, the idle status information of at least one resource block, and/or the busy status of at least one resource block. information;

The receiver is further configured to receive information about idle resource blocks allocated by the first device to the UE; wherein, the information about the idle resource blocks is used to instruct the UE to use the idle resource blocks and the first The second UE performs data transmission; the idle resource block is the at least one resource block.

26. A device, applied in the D2D communication system, characterized in that it includes: a transmitter, configured to send the information of the first resource pool to the user equipment UE; wherein the first resource pool includes: at least one resource block;

Receiver, configured to receive a resource application message sent by the UE; wherein the resource application message carries the service type of the requested resource, idle status information of at least one resource block, and/or busy status information of at least one resource block. ;

The sender is further configured to send information about idle resource blocks allocated to the UE to the UE according to the resource application message received by the receiver; wherein, the idle resource block is the at least A resource block.

27. A system for resource application, applied in the D2D communication system, characterized in that it includes: user equipment UE and the first device; wherein,

The UE is the UE described in any one of claims 1-6; or the UE is the UE described in claim 25;

The first device is the device described in any one of claims 7-12; or the first device is the device described in claim 26.