WO2014205746A1

WO2014205746A1 - Resource configuration method and device for terminal-to-terminal communication

Info

Publication number: WO2014205746A1
Application number: PCT/CN2013/078227
Authority: WO
Inventors: 马洁; 金哲; 余志钦
Original assignee: 华为技术有限公司
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2014-12-31
Also published as: CN105264981B; CN105264981A

Abstract

Disclosed are a resource configuration method and device for terminal-to-terminal communication. The present invention relates to the field of communications, which can reduce overhead of a control channel. A specific solution comprises: a base station sending first configuration information to a first terminal, and sending second configuration information to a second terminal; when a first D2D subframe is scheduled, allocating a first radio resource to the first terminal and the second terminal, and when a second D2D subframe is scheduled, allocating a second radio resource to the first terminal and the second terminal; and generating first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource, and instructing the first D2D scheduling information to the first terminal and the second terminal by using a first DCI in a PDCCH, so that the first terminal and the second terminal perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information.

Description

Resource configuration method and device for terminal-to-terminal communication

Technical field

The present invention relates to the field of communications, and in particular, to a resource configuration method and device for terminal-to-terminal communication. Background technique

Device to Device (D2D) communication provided by The 3rd Generation Partnership Project (3GPP) is an Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network). In E-UTRAN), a communication technique that allows communication between terminals directly using cell resources.

The use equipment (UE) can communicate not only through the base station but also directly through the D2D link. The direct communication between the terminals through the D2D link can be controlled by the base station. According to a conventional manner, the base station can respectively indicate the transmission resources and the reception resources of the respective terminals through different control information (uplink control information and downlink control information).

However, since the terminal transmits and receives information through the D2D link, it is all on the same radio resource. For example, terminal A sends data to terminal B and terminal B receives data from terminal A on the same radio resource. The D2D link exists between the terminal A and the terminal B. If the base station uses the traditional method to separately indicate the transmission resources and the receiving resources of each terminal, it needs to send multiple different resource allocation messages, which will lead to system control. The channel overhead is large.

Summary of the invention

Embodiments of the present invention provide a resource configuration method and device for terminal-to-terminal communication, which can reduce the overhead of a control channel. A first aspect of the embodiments of the present invention provides a resource configuration method for terminal-to-terminal communication, which can be applied to a base station, where the method includes:

Sending the first configuration information to the first terminal, and sending the second configuration information to the second terminal, where the first configuration information includes: device-to-device D2D subframe configuration information, a first terminal sub-identity identifier; The information includes: the D2D subframe configuration information, the second terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe;

Allocating a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and being the first terminal and the second terminal when scheduling the second D2D subframe Allocating a second wireless resource;

Generating first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource, and using the first downlink control information DCI in the physical downlink control channel PDCCH to the first terminal and The second terminal indicates the first D2D scheduling information, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal according to the Obtaining, by the second configuration information, the first D2D scheduling information from the PDCCH, and further causing the first terminal and the second terminal to be in the first radio resource or the first according to the first D2D scheduling information D2D communication is performed on the second wireless resource.

With reference to the first aspect, in a possible implementation manner, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, and modulation coding of the D2D communication The mode MCS, the new data of the D2D communication indicates at least one of an NDI and a transmit power control TPC information of the D2D communication.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the first configuration information further includes: a public identity identifier; the second configuration information further includes: the public identity identifier;

The first downlink control information in the physical downlink control channel PDCCH Before the DCI indicates the first D2D scheduling information to the first terminal and the second terminal, the method further includes:

And masking the first D2D scheduling information by using the public identity identifier;

The indicating, by the first downlink control information DCI in the physical downlink control channel PDCCH, the first D2D scheduling information to the first terminal and the second terminal, includes: using the first in the PDCCH Transmitting, by the DCI, the first D2D scheduling information that has been masked to the first terminal and the second terminal, so that the first terminal and the second terminal obtain the PDCCH from the PDCCH according to the public identity The first D2D scheduling information.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information further includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier;

The first transmitter sub-identity identifier is used to indicate a sub-identity identifier of the terminal that transmits data when the first terminal and the second terminal perform the D2D communication on the first radio resource, a second identifier of the terminal that is used by the first terminal and the second terminal to transmit the data when the D2D communication is performed on the second radio resource; The identity is different from the second emitter identity.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information further includes: a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier ;

The first transmit and receive indication is used to indicate that the first terminal and the second terminal transmit the D2D communication according to the first transmit and receive sub-identity when performing the D2D communication on the first radio resource. Receiving the data;

The second transmit and receive indication is used to indicate that the first terminal and the second terminal transmit or receive according to the first transmit and receive sub-identity when performing the D2D communication on the second radio resource. Data. With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the method further includes:

Transmitting, by the first terminal and the second terminal, Transmitting or receiving the data according to the first D2D scheduling information and the first transmit and receive sub-identity identifiers when the D2D communication is performed on a radio resource, so that the first terminal and the second terminal are And performing the D2D communication on the second radio resource, transmitting or receiving the data according to the first D2D scheduling information and the first transmit and receive sub-identity identifier.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the first transmit and receive indication is a receive indication, and the second transmit receive indication is a transmit indication; or, the first transmit Receiving the indication as the transmission indication, and the second transmitting and receiving indication is the receiving indication;

If the first transmission reception indication is a transmission indication, the second transmission reception indication is a reception indication, and the first terminal sub-identity identifier is the same as the first transmission reception sub-identity identifier, the Transmitting, by the terminal, data on the first radio resource to the second terminal, and receiving data from the second terminal on the second radio resource;

If the first transmission reception indication is the reception indication, the second transmission reception indication is the transmission indication, and the first terminal sub-identity identifier is the same as the first transmission reception sub-identity identifier, The first terminal receives data from the second terminal on the first radio resource, and transmits data to the second terminal on the second radio resource.

With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner, the resource configuration method for the terminal-to-terminal communication further includes:

Sending the third configuration information to the third terminal, where the third configuration information includes: the D2D subframe configuration information, and the third terminal sub-identity identifier; Allocating a third radio resource to the second terminal and the third terminal when the first D2D subframe is scheduled, and the second terminal and the third terminal when scheduling the second D2D subframe Allocating a fourth wireless resource;

Generating second D2D scheduling information according to the allocated third radio resource and the allocated fourth radio resource, and indicating to the second terminal and the third terminal by using a second DCI in the PDCCH And the second D2D scheduling information, so that the second terminal acquires the second D2D scheduling information from the PDCCH according to the second configuration information, so that the third terminal is configured according to the third configuration information. Obtaining, by the PDCCH, the second D2D scheduling information, so that the second terminal and the third terminal perform the D2D on the third radio resource or the fourth radio resource according to the second D2D scheduling information. Communication.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, At least one of an MCS of the D2D communication, an NDI of the D2D communication, and a transmit TPC information of the D2D communication.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the third configuration information further includes: a public identity identifier;

And before the indicating, by the second DCI in the PDCCH, the second D2D scheduling information to the second terminal and the third terminal, the method further includes:

And masking the second D2D scheduling information by using the public identity identifier;

And the indicating the second D2D scheduling information to the second terminal and the third terminal by using the second DCI in the PDCCH, including:

Transmitting the second D2D scheduling information that has been masked to the second terminal and the third terminal by using the second DCI in the PDCCH.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information further includes: a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier ; The third transmit and receive indication is used to indicate that the second terminal and the third terminal perform the D2D communication on the third radio resource, according to the second transmit and receive sub-identity identifier or Receiving the data;

The fourth transmit reception indication is used to indicate that the second terminal and the third terminal transmit or receive according to the second transmit and receive sub-identity when performing the D2D communication on the fourth radio resource. Data.

Transmitting a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier to the second terminal and the third terminal, so that the second terminal and the third terminal are in the Transmitting or receiving the data according to the second D2D scheduling information and the second transmit and receive sub-identity identifiers when the D2D communication is performed on the third radio resource, so that the second terminal and the third terminal are And performing the D2D communication on the fourth radio resource, transmitting or receiving the data according to the second D2D scheduling information and the second transmit and receive sub-identity identifier.

With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner, the third transmit and receive indication is a receive indication, and the fourth transmit receive indication is a transmit indication; or, the third transmit Receiving the indication as the transmission indication, and the fourth transmitting and receiving indication is the receiving indication;

If the third transmission reception indication is a transmission indication, the fourth transmission reception indication is a reception indication, and the second terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, the Transmitting, by the second terminal, data on the third radio resource to the third terminal, and receiving data from the third terminal on the fourth radio resource;

If the third transmission reception indication is the reception indication, the fourth transmission reception indication is the transmission indication, and the second terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, The second terminal receives on the third radio resource Data from the third terminal transmitting data to the third terminal on the fourth wireless resource.

A second aspect of the embodiments of the present invention provides a resource configuration method for terminal-to-terminal communication, which can be applied to a second terminal, where the method includes:

And receiving the second configuration information that is sent by the base station, where the configuration information includes: D2D subframe configuration information, a terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D in the radio subframe. Subframe

Acquiring the first D2D scheduling information indicated by the first DCI in the PDCCH by the base station, the first D2D scheduling information, when scheduling the first D2D subframe and the second D2D subframe, according to the configuration information When the base station allocates the first radio resource allocated to the second terminal and the first terminal when scheduling the first D2D subframe, and when scheduling the second D 2 D subframe, the second terminal and the a D2D communication link exists between the first terminal and the second terminal, and the first radio resource or the D2D communication with the first terminal on the second wireless resource.

With reference to the second aspect, in a possible implementation manner, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, an MCS of the D2D communication, At least one of the NDI of the D2D communication and the TPC information of the D2D communication.

With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the configuration information further includes: a public identity identifier;

When the first D2D subframe and the second D2D subframe are scheduled, the first D2D scheduling information that is indicated by the first DCI in the PDCCH by the base station is obtained according to the configuration information, and includes:

Acquiring the first D2D scheduling information that has been masked from the PDCCH according to the public identity when scheduling the first D2D subframe and the second D2D subframe; The base station is configured to mask the first D2D scheduling information. With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier;

The performing D2D communication with the first terminal on the first radio resource or the second radio resource according to the first D2D scheduling information includes:

And if the terminal sub-identity identifier is the same as the first transmit sub-identity identifier, transmitting data to the first terminal by using the D2D communication link on the first radio resource, where the second radio resource is Receiving data from the first terminal over the D2D communication link;

If the terminal sub-identity identifier is the same as the second sub-sub-identity identifier, receiving data from the first terminal over the D2D communication link on the first radio resource, in the second wireless Data is transmitted over the D2D communication link to the first terminal.

With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information includes: a first transmit and receive indication, a second transmit receive indication, and a first transmit and receive sub-identity identifier;

The first transmission reception indication is a reception indication, and the second transmission reception indication is a transmission indication; or the first transmission reception indication is the transmission indication, and the second transmission reception indication is the reception indication.

With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the resource configuration method for the terminal-to-terminal communication further includes:

Receiving a first transmit reception indication, a second transmit reception indication, and a first transmit receive sub-identity identifier from the base station;

Combining the second aspect with the above possible implementations, in another possible implementation The performing D2D communication with the first terminal on the first radio resource or the second radio resource according to the first D2D scheduling information includes:

If the first transmission reception indication is the transmission indication, the second transmission reception indication is the reception indication, and the terminal sub-identity identifier is the same as the first transmission reception sub-identity identifier, Transmitting data to the first terminal by using the D2D communication link according to the first D2D scheduling information, and transmitting, by the D2D communication, according to the first D2D scheduling information, on the second radio resource, The link receives data from the first terminal;

And if the first transmit and receive indication is the receive indication, the second transmit and receive indication is the transmit indication, and the terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, Receiving, by the D2D communication link, data from the first terminal according to the first D2D scheduling information, and transmitting, by using the D2D according to the first D2D scheduling information, on the second radio resource. The communication link transmits data to the first terminal.

Acquiring, according to the configuration information, second D2D scheduling information indicated by the second DCI in the PDCCH, the second D2D, when scheduling the first D2D subframe and the second D2D subframe The scheduling information is that the base station is the third radio resource allocated to the second terminal and the third terminal when scheduling the first D 2 D subframe, and the second terminal is when the second D2D subframe is scheduled. And the D2D communication link exists between the third terminal and the second terminal, generated by the fourth radio resource allocated by the third terminal;

And performing the D 2 D communication with the third terminal on the third radio resource or the fourth radio resource according to the second D2D scheduling information;

The second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, MCS of the D2D communication, and the At least one of an NDI of D2D communication and a transmit TPC message of the D2D communication. With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, when scheduling the first D2D subframe and the second D2D subframe, acquiring the foregoing according to the configuration information The second D2D scheduling information indicated by the second DCI in the PDCCH by the base station includes:

Acquiring the second D2D scheduling information that has been masked from the PDCCH according to the public identity when scheduling the first D2D subframe and the second D2D subframe; The base station is configured to mask the first D2D scheduling information.

With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information includes: a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier;

The third transmission reception indication is a reception indication, and the fourth transmission reception indication is a transmission indication; or the third transmission reception indication is the transmission indication, and the fourth transmission reception indication is the reception indication.

Receiving, by the base station, a third transmit reception indication, a fourth transmit reception indication, and a second transmit receive sub-identity identifier;

With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner, the performing, according to the second D2D scheduling information, on the third radio resource or the fourth radio resource, The three terminals perform the D2D communication, including:

If the third transmission reception indication is the transmission indication, the fourth transmission reception indication is the reception indication, and the terminal sub-identity identifier and the second transmission reception If the sub-identity identifiers are the same, transmitting data to the third terminal by using the D2D communication link according to the second D2D scheduling information on the third radio resource, according to the fourth radio resource. The second D2D scheduling information receives data from the third terminal through the D2D communication link;

If the third transmission reception indication is the reception indication, the fourth transmission reception indication is the transmission indication, and the terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, Receiving, by the D2D communication link, data from the third terminal according to the second D2D scheduling information, and transmitting, by using the second D2D scheduling information, on the fourth radio resource. The D 2 D communication link transmits data to the third terminal.

A third aspect of the embodiments of the present invention provides a base station, including:

a sending unit, configured to send the first configuration information to the first terminal, and send the second configuration information to the second terminal, where the first configuration information includes: a device-to-device D2D subframe configuration information, and a first terminal sub-identity identifier; The second configuration information includes: the D2D subframe configuration information, the second terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe;

An allocating unit, configured to allocate a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and to be the first terminal and when scheduling the second D2D subframe The second terminal allocates a second radio resource;

a generating unit, configured to generate first D2D scheduling information according to the first radio resource that the allocation unit has allocated and the second radio resource that the allocation unit has allocated;

The sending unit is further configured to: indicate, by using the first downlink control information DCI in the physical downlink control channel PDCCH, the first D2D scheduling information generated by the generating unit to the first terminal and the second terminal, where The first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal acquires the first PDCCH from the PDCCH according to the second configuration information. D2D tone And the first terminal and the second terminal perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information.

With reference to the third aspect, in a possible implementation manner, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, and modulation coding of the D2D communication The mode MCS, the new data of the D2D communication indicates at least one of an NDI and a transmit power control TPC information of the D2D communication.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the first configuration information further includes: a public identity identifier; the second configuration information further includes: the public identity identifier;

The base station further includes:

And a masking unit, configured to: before the sending, by the sending unit, the first downlink control information DCI in the physical downlink control channel PDCCH, to indicate, by the first terminal and the second terminal, the first D2D scheduling information, The public identity identifier masks the first D2D scheduling information;

The sending unit is further configured to send, by using the first DCI in the PDCCH, the first D2D scheduling information that has been masked by the masking unit to the first terminal and the second terminal, to And causing the first terminal and the second terminal to acquire the first D2D scheduling information from the PDCCH according to the public identity identifier.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information further includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier;

The first transmitter sub-identity identifier is used to indicate a sub-identity identifier of the terminal that transmits data when the first terminal and the second terminal perform the D2D communication on the first radio resource, The second transmitter identifier is used to indicate that the first terminal and the second terminal perform the D2D communication on the second radio resource. a sub-identity identifier of the terminal that transmits the data; the first emission sub-identity identifier is different from the second emission sub-identity identifier.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information further includes: a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier ;

The second transmit and receive indication is used to indicate that the first terminal and the second terminal transmit or receive according to the first transmit and receive sub-identity when performing the D2D communication on the second radio resource. Data.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the sending unit is further configured to send a first transmit receive indication, a second transmit receive indication, and a first transmit receive sub-identity identifier to The first terminal and the second terminal, when the first terminal and the second terminal perform the D2D communication on the first radio resource, according to the first D2D scheduling information and the Transmitting or receiving the data by the first transmit and receive sub-identity, so that when the first terminal and the second terminal perform the D2D communication on the second radio resource, according to the first D2D scheduling The information and the first transmit receive sub-identity transmit or receive the data.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the first transmit and receive indication is a receive indication, and the second transmit receive indication is a transmit indication; or, the first transmit Receiving the indication as the transmission indication, and the second transmitting and receiving indication is the receiving indication;

If the first transmission reception indication is a transmission indication, the second transmission reception indication is a reception indication, and the first terminal sub-identity identifier is the same as the first transmission reception sub-identity identifier, the Transmitting, by the terminal, data on the first radio resource to the second terminal, and receiving, on the second radio resource, the second terminal The data;

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation, the sending unit is further configured to send the third configuration information to the third terminal, where the third configuration information includes: the D2D a subframe configuration information, a third terminal sub-identity identifier, the allocation unit, configured to allocate a third radio resource to the second terminal and the third terminal when scheduling the first D2D subframe, in scheduling And assigning a fourth radio resource to the second terminal and the third terminal in the second D2D subframe.

The generating unit is further configured to generate second D 2 D scheduling information according to the third wireless resource that the allocation unit has allocated and the fourth wireless resource that the allocation unit has allocated;

The sending unit is further configured to: indicate, by the second DCI in the PDCCH, the second D2D scheduling information generated by the generating unit to the second terminal and the third terminal, so that the The second terminal acquires the second D2D scheduling information from the PDCCH according to the second configuration information, so that the third terminal acquires the second D2D scheduling information from the PDCCH according to the third configuration information, and further The second terminal and the third terminal perform the D2D communication on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, At least one of an MCS of the D2D communication, an NDI of the D2D communication, and a transmit TPC information of the D2D communication.

Combining the third aspect with the above possible implementations, in another possible implementation The third configuration information further includes: a public identity identifier;

The masking unit is further configured to pass the second in the PDCCH in the sending unit

Before the DCI indicates the second D2D scheduling information to the second terminal and the third terminal, the second D2D scheduling information is masked by using the public identity identifier;

The sending unit is further configured to send the masked second D2D scheduling information to the second terminal and the third terminal by using the second DCI in the PDCCH.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information further includes: a third transmit reception indication, a fourth transmit reception indication, and a second transmit receive sub-identity identifier ;

The third transmit and receive indication is used to indicate that the second terminal and the third terminal perform the D2D communication on the third radio resource, according to the second transmit and receive sub-identity identifier or Receiving the data;

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the sending unit is further configured to send a third transmit receive indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier to And the second terminal and the third terminal, when the second terminal and the third terminal perform the D2D communication on the third radio resource, according to the second D2D scheduling information and the Transmitting or receiving the data by the second transmit and receive sub-identity identifier, so that when the second terminal and the third terminal perform the D2D communication on the fourth radio resource, according to the second D2D scheduling The information and the second transmit receive sub-identity transmit or receive the data.

With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner, the third transmit and receive indication is a receive indication, and the fourth transmit receive indication is a transmit indication; or, the third transmit Receiving the indication as the transmitting indication, The fourth transmission reception indication is the reception indication;

If the third transmission reception indication is the reception indication, the fourth transmission reception indication is the transmission indication, and the second terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, The second terminal receives data from the third terminal on the third radio resource, and transmits data to the third terminal on the fourth radio resource.

A fourth aspect of the embodiments of the present invention provides a terminal, including:

An acquiring unit, configured to receive configuration information sent by the base station, where the configuration information includes:

a D2D subframe configuration information, a terminal sub-identity identifier; the D2D subframe configuration information is used to indicate a first D2D subframe and a second D2D subframe in the radio subframe; and the first D2D subframe is scheduled and the Acquiring, according to the configuration information, first D2D scheduling information that is indicated by the first DCI in the PDCCH according to the configuration information, where the first D2D scheduling information is that the first D2D sub And generating, by the second radio resource allocated by the terminal and the first terminal, and the second radio resource allocated by the terminal and the first terminal when scheduling the second D 2 D subframe, A D2D communication link exists between a terminal and the terminal;

a communication unit, configured to perform D2D communication with the first terminal on the first radio resource or the second radio resource according to the first D2D scheduling information acquired by the acquiring unit.

With reference to the fourth aspect, in a possible implementation manner, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, an MCS of the D2D communication, The NDI of the D2D communication and the D2D At least one of the TPC information of the communication.

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation manner, the configuration information further includes: a public identity identifier;

The acquiring unit is further configured to: when the first D2D subframe and the second D2D subframe are scheduled, obtain the masked first D2D scheduling information from the PDCCH according to the public identity identifier;

The public identity is used by the base station to mask the first D2D scheduling information.

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier;

The communication unit includes:

a first communication module, configured to transmit data to the first terminal by using the D2D communication link on the first radio resource if the terminal sub-identity identifier is the same as the first sub-sub-identity identifier, Receiving data from the first terminal over the D2D communication link on the second wireless resource;

a second communication module, configured to receive data from the first terminal by using the D2D communication link on the first radio resource if the terminal sub-identity identifier is the same as the second sub-sub-identity identifier Transmitting data to the first terminal over the D2D communication link on the second wireless resource.

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information includes: a first transmit and receive indication, a second transmit receive indication, and a first transmit and receive sub-identity identifier;

Combining the fourth aspect with the above possible implementations, in another possible implementation The acquiring unit is further configured to receive a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier from the base station;

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation manner, the communications unit includes:

a third communication module, configured to: if the first transmit and receive indication is the transmit indication, the second transmit receive indication is the receive indication, and the terminal sub-identity identifier and the first transmit receive sub-identity If the identifiers are the same, transmitting data to the first terminal by using the D2D communication link according to the first D2D scheduling information on the first radio resource, according to the first D2D on the second radio resource. Scheduling information receiving data from the first terminal over the D2D communication link;

a fourth communication module, configured to: if the first transmit and receive indication is the receive indication, the second transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the first transmit receive sub-identity If the identifiers are the same, the data from the first terminal is received by the D2D communication link according to the first D2D scheduling information on the first radio resource, and the first radio resource is used according to the first The D2D scheduling information transmits data to the first terminal through the D2D communication link.

With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner, the acquiring unit is further configured to: when scheduling the first D2D subframe and the second D2D subframe, according to the The second D2D scheduling information indicated by the second DCI in the PDCCH is obtained by the base station, where the second D2D scheduling information is that the base station is the terminal according to the scheduling of the D2D subframe. a third radio resource allocated by the third terminal and a fourth radio resource allocated by the terminal and the third terminal when the second D 2 D subframe is scheduled, where the third terminal and the terminal are The D2D communication link exists between; The communication unit is further configured to perform the D2D communication with the third terminal on the third radio resource or the fourth radio resource according to the second D2D scheduling information;

The second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, MCS of the D2D communication, NDI of the D2D communication, and the D2D communication. At least one of the TPC information.

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation, the acquiring unit is further configured to: when scheduling the first D2D subframe and the second D2D subframe, according to the The public identity identifier acquires the second D2D scheduling information that has been masked from the PDCCH;

The base station uses the public identity identifier to mask the second D2D scheduling information.

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information includes: a third transmit reception indication, a fourth transmit reception indication, and a second transmit receive sub-identity identifier;

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation, the acquiring unit is further configured to receive a third transmit reception indication, a fourth transmit receive indication, and a second transmit from the base station. Receiving a sub-identity identifier;

With reference to the fourth aspect, in combination with the foregoing possible implementation manner, in another possible implementation manner, the communications unit further includes:

a fifth communication module, configured to: if the third transmit reception indication is the transmit indication, And the fourth transmit and receive indication is the receive indication, and the terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, and then pass the second D2D scheduling information on the third radio resource. Transmitting, by the D2D communication link, data to the third terminal, and receiving, by the D2D communication link, data from the third terminal according to the second D2D scheduling information on the fourth radio resource;

a sixth communication module, configured to: if the third transmit reception indication is the receive indication, the fourth transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the second transmit receive sub-identity If the identifiers are the same, the data from the third terminal is received by the D2D communication link according to the second D2D scheduling information on the third radio resource, and the second radio resource is used according to the second The D2D scheduling information transmits data to the third terminal through the D2D communication link.

A fifth aspect of the embodiments of the present invention provides a base station, including:

a transmitter, configured to send the first configuration information to the first terminal, and send the second configuration information to the second terminal, where the first configuration information includes: a device-to-device D2D subframe configuration information, and a first terminal sub-identity identifier; The second configuration information includes: the D2D subframe configuration information, the second terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe;

a processor, configured to allocate a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, where the first terminal and the second D2D subframe are scheduled The second terminal allocates a second radio resource; generates first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource; and the transmitter is further configured to perform physical downlink control The first downlink control information DCI in the channel PDCCH indicates the first D2D scheduling information to the first terminal and the second terminal, so that the first terminal is used from the PDCCH according to the first configuration information. Acquiring the first D2D scheduling information, so that the second terminal acquires the first D2D scheduling information from the PDCCH according to the second configuration information, so that the first terminal and the second terminal are configured according to the second terminal The first D2D scheduling information is in the first wireless resource D2D communication is performed on the source or the second radio resource.

With reference to the fifth aspect, in a possible implementation manner, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, and modulation coding of the D2D communication The mode MCS, the new data of the D2D communication indicates at least one of an NDI and a transmit power control TPC information of the D2D communication.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the first configuration information further includes: a public identity identifier; the second configuration information further includes: the public identity identifier;

The processor is further configured to: before the first direct control information DCI in the physical downlink control channel PDCCH is used by the transmitter, to indicate, by the first terminal and the second terminal, the first D2D scheduling information, And masking the first D2D scheduling information by using the public identity identifier;

The transmitter is further configured to send the first D2D scheduling information that has been masked to the first terminal and the second terminal by using the first DCI in the PDCCH, so that the first And the second terminal acquires the first D2D scheduling information from the PDCCH according to the public identity.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information further includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier;

Combining the fifth aspect with the above possible implementations, in another possible implementation The first D2D scheduling information further includes: a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier;

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the transmitter is further configured to send a first transmit receive indication, a second transmit receive indication, and a first transmit receive sub-identity identifier to The first terminal and the second terminal, when the first terminal and the second terminal perform the D2D communication on the first radio resource, according to the first D2D scheduling information and the Transmitting or receiving the data by the first transmit and receive sub-identity, so that when the first terminal and the second terminal perform the D2D communication on the second radio resource, according to the first D2D scheduling The information and the first transmit receive sub-identity transmit or receive the data.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the first transmit and receive indication is a receive indication, and the second transmit receive indication is a transmit indication; or, the first transmit Receiving the indication as the transmission indication, and the second transmitting and receiving indication is the receiving indication;

If the first transmission reception indication is the reception indication, the second transmission reception indication is the transmission indication, and the first terminal sub-identity identifier and the first transmission Receiving the same sub-identity, the first terminal receives data from the second terminal on the first radio resource, and transmits data to the second terminal on the second radio resource.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation, the transmitter is further configured to send the third configuration information to the third terminal, where the third configuration information includes: the D2D a subframe configuration information, a third terminal sub-identity identifier, the processor, configured to allocate a third radio resource to the second terminal and the third terminal when scheduling the first D2D subframe, in scheduling Assigning a fourth radio resource to the second terminal and the third terminal in the second D2D subframe; generating a second D2D according to the allocated third radio resource and the allocated fourth radio resource Scheduling information;

The transmitter is further configured to: indicate, by using the second DCI in the PDCCH, the second D2D scheduling information to the second terminal and the third terminal, so that the second terminal is according to the second Obtaining, by the configuration information, the second D2D scheduling information from the PDCCH, so that the third terminal acquires second D2D scheduling information from the PDCCH according to the third configuration information, thereby enabling the second terminal and the The third terminal performs the D2D communication on the third radio resource or the fourth radio resource according to the second D 2 D scheduling information.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, At least one of an MCS of the D2D communication, an NDI of the D2D communication, and TPC information of the D2D communication.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the third configuration information further includes: a public identity identifier;

The processor is further configured to: before the transmitter indicates the second D2D scheduling information to the second terminal and the third terminal by using a second DCI in the PDCCH, using the public identity Identifying to mask the second D2D scheduling information; The transmitter is further configured to send the second D2D scheduling information that has been masked to the second terminal and the third terminal by using the second DCI in the PDCCH.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information further includes: a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier ;

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the transmitter is further configured to send a third transmit receive indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier to And the second terminal and the third terminal, when the second terminal and the third terminal perform the D2D communication on the third radio resource, according to the second D2D scheduling information and the Transmitting or receiving the data by the second transmit and receive sub-identity identifier, so that when the second terminal and the third terminal perform the D2D communication on the fourth radio resource, according to the second D2D scheduling The information and the second transmit receive sub-identity transmit or receive the data.

With reference to the fifth aspect and the foregoing possible implementation manner, in another possible implementation manner, the third transmit and receive indication is a receive indication, and the fourth transmit receive indication is a transmit indication; or, the third transmit Receiving the indication as the transmission indication, and the fourth transmitting and receiving indication is the receiving indication;

If the third transmission reception indication is a transmission indication, the fourth transmission reception indication is a reception indication, and the second terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, the Transmitting, by the second terminal, data on the third radio resource to the third terminal, and receiving, on the fourth radio resource, the third terminal The data;

A sixth aspect of the embodiments of the present invention provides a terminal, including:

The receiver is configured to receive configuration information sent by the base station, where the configuration information includes:

The D2D subframe configuration information, the terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe;

a processor, configured to acquire, according to the configuration information, first D2D scheduling information indicated by the first DCI in the PDCCH according to the configuration information, when the first D2D subframe and the second D2D subframe are scheduled, The first D2D scheduling information is the first radio resource allocated by the base station to the terminal and the first terminal when scheduling the first D2D subframe, and the second D 2 D subframe is scheduled to be the terminal and A D2D communication link exists between the first terminal and the terminal, and the first radio resource or the first D2D scheduling information is generated according to the second radio resource allocated by the first terminal. And performing D2D communication with the first terminal on the second wireless resource.

With reference to the sixth aspect, in a possible implementation manner, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, an MCS of the D2D communication, At least one of the NDI of the D2D communication and the TPC information of the D2D communication.

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the configuration information further includes: a public identity identifier;

The processor is further configured to: when the first D2D subframe and the second D2D subframe are scheduled, acquire the masked first D2D scheduling information from the PDCCH according to the public identity identifier; The public identity is used by the base station to mask the first D2D scheduling information.

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier;

The terminal further includes:

a transmitter, configured to transmit data to the first terminal by using the D2D communication link on the first radio resource if the terminal sub-identity identifier is the same as the first sub-sub-identity identifier;

The receiver is further configured to: if the terminal sub-identity identifier is the same as the first transmit sub-identity identifier, receive, by the D2D communication link, the first terminal from the second radio resource. Data

The receiver is further configured to: if the terminal sub-identity identifier is the same as the second sub-sub-identity identifier, receive, by the D2D communication link, the first terminal from the first radio resource. Data

The transmitter is further configured to: if the terminal sub-identity identifier is the same as the second sub-sub-identity identifier, transmit data to the first terminal by using the D2D communication link on the second radio resource. .

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the first D2D scheduling information includes: a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier;

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation, the receiver is further configured to receive a first transmit reception indication, a second transmit receive indication, and a first transmit from the base station. Receiving a sub-identity identifier; The first transmission reception indication is a reception indication, and the second transmission reception indication is a transmission indication; or the first transmission reception indication is the transmission indication, and the second transmission reception indication is the reception indication.

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the transmitter is further configured to: if the first transmit and receive indication is the transmit indication, the second transmit receive indication And receiving, by the D2D communication link, according to the first D2D scheduling information, on the first radio resource, for the receiving indication, and the terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier. Data to the first terminal;

The receiver is further configured to: if the first transmit and receive indication is the transmit indication, the second transmit receive indication is the receive indication, and the terminal sub-identity identifier and the first transmit receiver If the identity identifiers are the same, the data from the first terminal is received by the D2D communication link according to the first D2D scheduling information on the second radio resource;

The receiver is further configured to: if the first transmit and receive indication is the receive indication, the second transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the first transmit receiver If the identity identifiers are the same, the data from the first terminal is received by the D2D communication link according to the first D2D scheduling information on the first radio resource;

The transmitter is further configured to: if the first transmit and receive indication is the receive indication, the second transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the first transmit receiver If the identity identifiers are the same, the data is transmitted to the first terminal by using the D2D communication link according to the first D2D scheduling information on the second radio resource.

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation, the processor is further configured to: when scheduling the first D2D subframe and the second D2D subframe, according to Determining configuration information, obtaining, by the base station, in the PDCCH The second D2D scheduling information indicated by the second DCI, where the second D2D scheduling information is a third radio resource and a scheduling station allocated by the base station to the terminal and the third terminal according to the scheduling of the D2D subframe The second D 2 D subframe is generated by the fourth radio resource allocated by the terminal and the third terminal, and the D2D communication link exists between the third terminal and the terminal; The second D2D scheduling information is performed by the D2D communication with the third terminal on the third radio resource or the fourth radio resource, where the second D2D scheduling information includes: the third radio resource At least one of location information, location information of the fourth radio resource, MCS of the D2D communication, NDI of the D2D communication, and TPC information of the D2D communication.

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation, the processor is further configured to: when scheduling the first D2D subframe and the second D2D subframe, according to The public identity identifier acquires the second D2D scheduling information that has been masked from the PDCCH;

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the second D2D scheduling information includes: a third transmit receive indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier;

With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation, the receiver is further configured to receive a third transmit reception indication, a fourth transmit receive indication, and a second transmit from the base station. Receiving a sub-identity identifier;

The third transmission reception indication is a reception indication, and the fourth transmission reception indication is a transmission indication; or the third transmission reception indication is the transmission indication, and the fourth transmission reception indication is the reception indication. With reference to the sixth aspect and the foregoing possible implementation manner, in another possible implementation manner, the transmitter is further configured to: if the third transmit and receive indication is the transmit indication, the fourth transmit receive indication And receiving, by the D2D communication link, the second D2D scheduling information, according to the second D2D scheduling information, for the receiving indication, and the terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity identifier. Data to the third terminal;

The receiver is further configured to: if the third transmit reception indication is the transmit indication, the fourth transmit receive indication is the receive indication, and the terminal sub-identity identifier and the second transmit receiver If the identity identifiers are the same, the data from the third terminal is received by the D2D communication link according to the second D2D scheduling information on the fourth radio resource;

The receiver is further configured to: if the third transmit reception indication is the receive indication, the fourth transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the second transmit receiver If the identity identifiers are the same, the data from the third terminal is received by the D2D communication link according to the second D2D scheduling information on the third radio resource;

The transmitter is further configured to: if the third transmit reception indication is the receive indication, the fourth transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the second transmit receiver If the identity identifiers are the same, the data is transmitted to the third terminal by using the D2D communication link according to the second D2D scheduling information on the fourth radio resource.

The resource configuration method and device for terminal-to-terminal communication provided by the embodiment of the present invention, the base station sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal, and then, when scheduling the first D2D subframe, a terminal and a second terminal allocate a first radio resource, and allocate a second radio resource to the first terminal and the second terminal when scheduling the second D2D subframe; and finally, according to the allocated first radio resource and the allocated second radio Generating first D2D scheduling information, and transmitting the first DCI in the PDCCH to the first terminal And the second terminal indicates the first D2D scheduling information, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal acquires the first D2D scheduling information from the PDCCH according to the second configuration information, and further And causing the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by transmitting a plurality of different resource allocation messages, respectively indicating that the transmitting resources of the respective terminals are compared with the receiving resources, the transmitting resources of the first terminal and the second terminal may be simultaneously indicated by the first D 2 D scheduling information. And receiving resources, which in turn can reduce the overhead of the control channel.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flowchart of a resource configuration method for terminal-to-terminal communication according to Embodiment 1 of the present invention;

2 is a schematic structural diagram of a resource configuration system based on terminal-to-terminal communication according to Embodiment 9 of the present invention;

FIG. 3 is a schematic structural diagram of another resource configuration system based on terminal-to-terminal communication according to Embodiment 9 of the present invention; FIG.

4 is a flowchart of a resource configuration method for terminal-to-terminal communication according to Embodiment 2 of the present invention;

FIG. 5 is a flowchart of a resource configuration method for terminal-to-terminal communication according to Embodiment 3 of the present invention; FIG.

6 is a flowchart of a resource configuration method for terminal-to-terminal communication according to Embodiment 4 of the present invention; 7 is a flowchart of a resource configuration method for terminal-to-terminal communication according to Embodiment 4 of the present invention;

8 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention;

9 is a schematic structural diagram of another base station according to Embodiment 5 of the present invention;

10 is a schematic structural diagram of a terminal in Embodiment 6 of the present invention;

FIG. 11 is a schematic structural diagram of another terminal in Embodiment 6 of the present invention; FIG. 12 is a schematic diagram of another terminal in Embodiment 6 of the present invention; FIG. 13 is a base station according to Embodiment 7 of the present invention; Schematic diagram of the composition;

14 is a schematic structural diagram of a terminal in Embodiment 8 of the present invention;

FIG. 15 is a schematic structural diagram of another terminal in Embodiment 8 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 various technologies described herein may be used in a Long Term Evolution (LTE) communication system or a Global System of Mobile Communication (GSM) or Code Division Multiple Access (CDMA) communication system; Or the resource configuration method of the terminal-to-terminal communication described by the present invention can also be applied to other communication systems than the above-listed systems.

Various aspects are described herein in connection with a terminal and/or a base station.

The terminal, which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem. The wireless terminal can communicate with one or more via a radio access network (eg, RAN, Radio Access Network) The core network communicates, and the wireless terminal can be a mobile terminal, such as a mobile phone (or called

"Cellular" telephones and computers with mobile terminals, for example, can be portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with the wireless access network. For example, Personal Communication Service (PCS), cordless phones, Session Initiated (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants

(PDA, Personal Digital Assistant) and other devices. A wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote terminal (remote terminal)

(Access Terminal), User Terminal, User Agent, User Device, or User Equipment.

The base station in the embodiment of the present invention may be an evolved base station (e.g., an access point), and the evolved base station may be a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface. The evolved base station can be used to convert received air frames and IP packets to each other as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The evolved base station can also coordinate the management of attributes to the air interface. For example, the evolved base station may be an evolved base station (BTS, Base Transceiver Station) in GSM or CDMA, or an evolved base station (NodeB) in WCDMA, or an evolved evolved base station in LTE.

(NodeB or eNB or e-NodeB, evolutional Node B), the present invention is not limited.

In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this context is merely an association that describes the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship. Example 1

The embodiment of the invention provides a resource configuration method for terminal-to-terminal communication, as shown in FIG. 1 , which includes:

5101. The base station sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal. The first configuration information includes: Device TO Device (D2D) subframe configuration information, and the first terminal sub-identity. The second configuration information includes: D2D subframe configuration information, a second terminal sub-identity identifier; and D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe.

It should be noted that in a multiple UE Cooperative Communication (MUCC) scenario, D2D communication can be extended from point-to-point communication to point-to-multipoint communication or multi-point multi-point communication. In the MUCC scenario, the method of the embodiment of the present invention may further include: the base station sending the third configuration information to the third terminal by using an RRC message, where the third configuration information includes: D2D subframe configuration information, a public identity identifier, and a third terminal Identity.

5102. The base station allocates a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and allocates a second radio resource to the first terminal and the second terminal when scheduling the second D2D subframe.

Further, in the MUCC scenario, the method of the embodiment of the present invention may further include: the base station allocates a third radio resource to the second terminal and the third terminal when scheduling the first D 2 D subframe; and the base station is scheduling the second D2D sub The fourth radio resource is allocated to the second terminal and the third terminal at the time of the frame.

S103. The base station generates first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource, and passes the first downlink control information in the physical downlink control channel (PDCCH). The first D2D scheduling information is indicated to the first terminal and the second terminal, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal is configured according to the second Configuration information from PDCCH Acquiring the first D2D scheduling information, so that the first terminal and the second terminal perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information.

The first D2D scheduling information may include: location information of the first radio resource, location information of the second radio resource, Modulation and Coding Scheme (MCS) of the D2D communication, and new data indication of the D2D communication (New Data) Indicated, NDI) and at least one of Transmit Power Control (TPC) information of the D2D communication; wherein the NDI of the D2D communication is used to indicate that the data transmitted during the D2D communication is new data or retransmitted data.

It should be noted that, in an application scenario of the embodiment of the present invention, the first D2D scheduling information may further include: a first transmitting sub-identity identifier and a second transmitting sub-identity identifier.

In this application scenario, the first transmit sub-identity identifier is used to indicate a sub-identity identifier of a terminal that transmits data when the first terminal and the second terminal perform D2D communication on the first radio resource; And indicating that the first terminal and the second terminal perform D2D communication on the second radio resource, the sub-identity identifier of the terminal that transmits the data; the first emission sub-identity identifier is different from the second emission sub-identity identifier.

Further, in another application scenario of the embodiment of the present invention, the first D2D scheduling information may further include: a first transmit and receive indication, a second transmit receive indication, and a first transmit and receive sub-identity identifier; or The method of the embodiment of the present invention may further include: the base station sending, by using an RRC message, a first transmit reception indication, a second transmit reception indication, and a first transmit receive sub-identity identifier to the first terminal and the second terminal.

In this application scenario, the first transmit and receive indication is used to indicate that the first terminal and the second terminal transmit or receive data according to the first transmit and receive sub-identity when performing D2D communication on the first radio resource; The indication is used to instruct the first terminal and the second terminal to transmit or receive data according to the first transmission receiving sub identity when performing D2D communication on the second radio resource.

Specifically, the first transmit and receive indication is a receive indication, and the second transmit receive indication is a transmit indication; or the first transmit receive indication is a transmit indication, and the second transmit receive Shown as receiving instructions.

Exemplarily, if the first transmit reception indication is a transmission indication, the second transmission reception indication is a reception indication, and the first terminal sub-identity identifier is the same as the first transmission reception sub-identity identifier, the first terminal is in the first wireless Transmitting data to the second terminal, and receiving data from the second terminal on the second wireless resource;

If the first transmit reception indication is a receive indication, the second transmit receive indication is a transmit indication, and the first terminal sub-identity identifier is the same as the first transmit receive sub-identity identifier, the first terminal receives the second from the first radio resource. The data of the terminal transmits data to the second terminal on the second wireless resource.

Further, in the MUCC scenario in the application scenario, the method of the embodiment of the present invention may further include: the base station generating second D2D scheduling information according to the allocated third radio resource and the allocated fourth radio resource; The second DCI in the PDCCH indicates the second D2D scheduling information to the second terminal and the third terminal, so that the second terminal and the third terminal acquire the second D2D scheduling information from the PDCCH according to the public identity, and further enable the second terminal and the second terminal. The three terminals perform the D2D communication on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

The method for configuring the terminal-to-terminal communication resource provided by the embodiment of the present invention, the base station sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal, and then is the first terminal when scheduling the first D2D subframe. And allocating, by the second terminal, the first radio resource, and allocating the second radio resource to the first terminal and the second terminal when scheduling the second D2D subframe; and finally generating, according to the allocated first radio resource and the allocated second radio resource The first D2D scheduling information is used to indicate the first D2D scheduling information to the first terminal and the second terminal by using the first DCI in the PDCCH, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, The second terminal acquires the first D2D scheduling information from the PDCCH according to the second configuration information, and further causes the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by sending a plurality of different resource allocation messages, respectively Compared with the receiving resources of the respective terminals, the first D2D scheduling information may be used to simultaneously indicate the transmitting resources and the receiving resources of the first terminal and the second terminal, thereby reducing the overhead of the control channel. Example 2

The embodiment of the invention provides a resource configuration method for terminal-to-terminal communication, as shown in FIG. 4, which includes:

The second terminal receives the configuration information sent by the base station, where the configuration information includes: D2D subframe configuration information, a terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D sub-frame in the radio subframe. frame.

The configuration information may further include: a public identity identifier and a terminal sub-identity identifier.

5202. The second terminal, when scheduling the first D2D subframe and the second D2D subframe, acquires first D2D scheduling information that is indicated by the first DCI in the PDCCH according to the configuration information, where the first D2D scheduling information is the base station according to the scheduling. a first radio resource allocated for the second terminal and the first terminal and a second radio resource allocated for the second terminal and the first terminal when the second D 2 D subframe is scheduled, the first terminal and the second terminal There is a D2D communication link between the second terminals.

The first D2D scheduling information may include: at least one of location information of the first radio resource, location information of the second radio resource, MCS of D2D communication, NDI of D2D communication, and TPC information of the D2D communication. The NDI of the D2D communication is used to indicate that the data transmitted during the D2D communication is new data or retransmitted data.

Further, in an application scenario (peer-to-peer communication) of the embodiment of the present invention, the first D2D scheduling information includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier.

In another application scenario (in a MUCC scenario, that is, point-to-multipoint or multi-point-to-point communication), the first D2D scheduling information includes: a first transmit reception indication, a second transmit reception indication, and a first transmission. Receive sub-identity. Further, in another application scenario of the embodiment of the present invention (in a MUCC scenario, that is, point-to-multipoint or multi-point-to-point communication), the method of the embodiment of the present invention may further include: the second terminal scheduling the first D2D sub- And the second D2D scheduling information that is sent by the base station by using the second DCI in the PDCCH according to the configuration information, where the second D2D scheduling information is the second terminal and the second base station according to the scheduling of the first D2D subframe. A third radio resource allocated by the three terminals and a fourth radio resource allocated for the second terminal and the third terminal when the second D 2 D subframe is scheduled, and a D2D communication link exists between the third terminal and the second terminal.

The second D2D scheduling information includes: at least one of location information of the third radio resource, location information of the fourth radio resource, MCS of D2D communication, NDI of D2D communication, and transmission TPC information of D2D communication.

S203. The second terminal performs D2D communication with the first terminal on the first radio resource or the second radio resource according to the first D2D scheduling information.

Further, in an application scenario (peer-to-peer communication) of the embodiment of the present invention, S203 may be specifically: if the terminal sub-identity identifier is the same as the first-transmission sub-identity identifier, the second terminal passes the D2D on the first radio resource. The communication link transmits data to the first terminal, and receives data from the first terminal over the second wireless resource through the D2D communication link; if the terminal sub-identity identifier is the same as the second-distributed sub-identity identifier, the first wireless The data is received by the D2D communication link from the first terminal, and the data is transmitted to the first terminal over the D2D communication link on the second wireless resource.

In another application scenario of the embodiment of the present invention (in a MUCC scenario, that is, point-to-multipoint or multi-point-to-point communication), S203 may be specifically: if the first transmit reception indication is a transmission indication, and the second transmission reception indication is reception Instructing, and the terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, the second terminal transmits data to the first terminal, and the second radio resource, by using the D2D communication link according to the first D2D scheduling information on the first radio resource. Receiving data from the first terminal through the D2D communication link according to the first D2D scheduling information; if the first transmission receiving indication is a receiving indication, the second transmitting receiving indication For transmitting the indication, and the terminal sub-identity identifier is the same as the first transmission and receiving sub-identity identifier, the second terminal receives the data from the first terminal by using the D2D communication link according to the first D2D scheduling information on the first radio resource, Transmitting data to the first terminal through the D2D communication link according to the first D2D scheduling information on the second radio resource.

Further, in the MUCC scenario, the method of the embodiment of the present invention may further include: the second terminal performing D2D communication with the third terminal on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

The method for configuring a resource for terminal-to-terminal communication provided by the embodiment of the present invention, the second terminal receives the configuration information sent by the base station, and when the first D2D subframe and the second D2D subframe are scheduled, the base station obtains the PDCCH in the PDCCH according to the configuration information. The first D2D scheduling information indicated by the DCI, where the first D2D scheduling information is the first radio resource allocated by the base station to the second terminal and the first terminal when scheduling the first D2D subframe, and the second D 2 D subframe is scheduled. a second terminal and a second radio resource allocated by the first terminal, and a D2D communication link exists between the first terminal and the second terminal; and the first radio resource or the second radio resource is compared according to the first D2D scheduling information. A terminal performs D2D communication. Compared with the prior art, each terminal receives a different resource allocation message for indicating the transmission resource and the receiving resource of each terminal, and the terminals on both sides of the D2D link may use the same scheduling information (first D2D scheduling information or the first The second D2D scheduling information determines the transmitting resource and the receiving resource of the terminal, thereby reducing the overhead of the control channel. Example 3

The embodiment of the present invention provides a resource configuration method for terminal-to-terminal communication, which can be applied to D2D communication between a first terminal and a second terminal (ie, point-to-point D2D communication, as shown in FIG. 2). 5, the resource configuration method for the terminal to terminal communication may include:

S301. The base station sends the first configuration information to the first terminal.

The first configuration information includes: D2D subframe configuration information, the first terminal body And the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the wireless subframe.

Specifically, the base station may carry the first configuration information in a RRC Radio Resource Control (RRC) message, and send the first configuration information to the first terminal by using an RRC message.

S302: The base station sends the second configuration information to the second terminal.

The second configuration information includes: D2D subframe configuration information, a second terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe.

Specifically, the base station may carry the second configuration information in the RRC message, and send the second configuration information to the second terminal by using the RRC message.

It should be noted that, in the embodiment of the present invention, S301 may be executed first, and then S302 may be performed; S302 may be executed first, and then S301 may be executed; S301 and S302 may be simultaneously executed, and the sequence of execution of S301 and S302 in the embodiment of the present invention is performed. No restrictions.

5303. The base station allocates a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and allocates the second radio resource to the first terminal and the second terminal when scheduling the second D2D subframe.

The base station may allocate the radio resources required for the D2D communication between the first terminal and the second terminal for the first terminal and the second terminal when scheduling the D2D subframe.

Exemplarily, if in the wireless subframe, subframe 4 and subframe 9 are D2D subframes (subframe 4 is a first D2D subframe, subframe 9 is a second D2D subframe), and the base station may be in subframe 0. Scheduling subframe 4 (first D2D subframe), assigning a first radio resource (for example, RB 10-RB60) to the first terminal and the second terminal; and scheduling subframe 9 in the subframe 5 at the base station (second D2D) Subframe), allocating a second radio resource (eg, RB40-RB80) to the first terminal and the second terminal

S304. The base station generates first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource. The first D2D scheduling information may include: at least one of location information of the first radio resource, location information of the second radio resource, MCS of D2D communication, NDI of D2D communication, and TPC information of D2D communication; wherein, D2D The NDI of the communication is used to indicate that the data transmitted when the D2D communication is performed is new data or retransmitted data.

It should be noted that, in this embodiment, the first D2D scheduling information may further include: a first emission sub-identity identifier and a second emission sub-identity identifier.

The first transmitter sub-identity identifier is used to indicate the sub-identity identifier of the terminal that transmits data when the first terminal and the second terminal perform D2D communication on the first radio resource, and the second-issue sub-identity identifier is used to indicate the first terminal. And a sub-identity identifier of the terminal that transmits the data when the second terminal performs D2D communication on the second radio resource.

Further, the first configuration information may further include: a public identity identifier; the second configuration information may further include: a public identity identifier. The method of the embodiment of the present invention may further include: S305.

5305. The base station uses the public identity identifier to mask the first D2D scheduling information.

S306. The base station indicates the first D2D scheduling information to the first terminal and the second terminal by using the first DCI in the PDCCH.

Specifically, in the embodiment of the present invention, the base station uses the public identity identifier to mask the first D2D scheduling information, and the base station indicates the first D2D scheduling information to the first terminal and the second terminal by using the DCI in the PDCCH. Specifically, the base station sends the masked D2D scheduling information to the first terminal and the second terminal by using DCI in the PDCCH.

The first terminal may acquire, according to the first configuration information, the first D2D scheduling information that is indicated by the base station by using the first DCI in the PDCCH, and the second terminal may obtain, according to the second configuration information, the first D2D scheduling that is indicated by the base station by using the DCI in the PDCCH. information. Specifically, the method of the embodiment of the present invention may further include S307-S308:

5307. The first terminal acquires the masked first D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe. S308. The second terminal acquires the masked first D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe.

Specifically, the base station may mask the first D2D scheduling information by using a public identity identifier before indicating the first D2D scheduling information to the first terminal and the second terminal by using the first DCI in the PDCCH, and correspondingly, the first terminal And the second terminal may obtain the masked first D2D scheduling information from the first DCI in the PDCCH according to the public identity when scheduling the D2D subframe and the second D2D subframe.

It should be noted that, in the embodiment of the present invention, S307 may be performed first, and then S308 may be performed; S308 may be performed first, and then S307 may be performed; S307 and S308 may also be performed at the same time, and the sequence of execution of S307 and S308 by the embodiment of the present invention is performed. The limitation of the order in which the first user acquires the D2-D scheduling information and the second user obtains the first D2D scheduling information is not limited in the embodiment of the present invention.

After acquiring the first D2D scheduling information, the first terminal and the second terminal may perform D2D communication with each other on the first radio resource or the second radio resource according to the first D 2 D scheduling information.

Specifically, the first transmitting sub-identity identifier and the second transmitting sub-identity identifier are respectively used to indicate that the first terminal and the second terminal perform D2D communication on the first radio resource and the second radio resource, and the terminal of the data transmitting terminal An identity identifier, the first terminal may determine whether the first terminal sub-identity identifier is the same as the first-distribution sub-identity identifier, or whether the first terminal sub-identity identifier is the same as the second-distribution sub-identity identifier, and then determining according to the judgment result. Transmitting or receiving data on a radio resource or a second radio resource, the second terminal may determine whether the second terminal sub-identity identifier is the same as the first transmission sub-identity identifier, or whether the second terminal sub-identity identifier and the second-distribution sub-identity identifier are If the data is transmitted or received on the first radio resource or the second radio resource, the method in the embodiment of the present invention may include S309 and S3 12:

S309. The first terminal determines whether the first terminal sub-identity identifier is the same as the first emission sub-identity identifier. Specifically, if the first terminal sub-identity identifier is the same as the first emission sub-identity identifier, it indicates that the first terminal sub-identity identifier is different from the second-distribution sub-identity identifier, and then continues

S3 10: If the first terminal sub-identity identifier is different from the first transmission sub-identity identifier, it indicates that the first terminal sub-identity identifier is the same as the second-distribution sub-identity identifier, and then continues S3 1 1 .

Further, in an application scenario of the embodiment of the present invention, S309 may be replaced by S309': the first terminal determines whether the first terminal sub-identity identifier and the second emission sub-identity identifier are the same.

In this application scenario, if the first terminal sub-identity identifier is the same as the second-distribution sub-identity identifier, indicating that the first terminal sub-identity identifier is different from the first-distribution sub-identity identifier, proceed to execute S3 1 1; If the terminal sub-identity identifier is different from the second sub-sub-identity identifier, it indicates that the first terminal sub-identity identifier is the same as the first-issue sub-identity identifier, and then S3 10 is continued.

S3 10. The first terminal transmits data to the second terminal on the first radio resource through the D2D communication link, and receives data from the second terminal on the second radio resource through the D2D communication link.

S3 1 1. The first terminal receives data from the second terminal on the first radio resource through the D2D communication link, and transmits data to the second terminal on the second radio resource through the D2D communication link.

S 3 12: The second terminal determines whether the second terminal sub-identity identifier and the second emission sub-identity identifier are the same.

Specifically, if the second terminal sub-identity identifier is the same as the second-distribution sub-identity identifier, indicating that the second terminal sub-identity identifier is different from the first-issue sub-identity identifier, proceeding

S3 13: If the second terminal sub-identity identifier is different from the second-distribution sub-identity identifier, indicating that the second terminal sub-identity identifier is the same as the first-distribution sub-identity identifier, proceed to S3 14 .

Further, in an application scenario of the embodiment of the present invention, the S3 12 may be replaced by the S3 12 ′: the second terminal determines whether the second terminal sub-identity identifier is the same as the first emission sub-identity identifier. In this application scenario, if the second terminal sub-identity identifier is the same as the first transmission sub-identity identifier, indicating that the second terminal sub-identity identifier is different from the second-distribution sub-identity identifier, proceed to S3 14; If the sub-identity identifier is different from the first sub-sub-identity identifier, it indicates that the first terminal sub-identity identifier is the same as the second-distribution sub-identity identifier, and then S3 13 is continued.

S3 13. The second terminal receives data from the first terminal on the first radio resource through the D2D communication link, and transmits data to the first terminal on the second radio resource through the D2D communication link.

S3 14. The second terminal transmits data to the first terminal on the first radio resource through the D2D communication link, and receives data from the first terminal on the second radio resource through the D2D communication link.

It should be noted that, if the first terminal sub-identity identifier is the same as the first emission sub-identity identifier, the second terminal sub-identity identifier is the same as the second-distribution sub-identity identifier, and the first-issue sub-identity identifier and the second-emission sub-identity The identifiers are different. Therefore, when the first terminal determines that the first terminal sub-identity identifier is the same as the first-distribution sub-identity identifier, the second terminal may determine that the second terminal sub-identity identifier is the same as the second-distribution sub-identity identifier. The first terminal transmits data to the second terminal through the D2D communication link on the first radio resource, and receives data from the second terminal through the D2D communication link on the second radio resource (ie, executes S3 10), as shown in FIG. 5 The second terminal receives data from the first terminal through the D2D communication link on the first radio resource, and transmits data to the first terminal through the D2D communication link on the second radio resource (ie, executes S3 13); The first terminal receives data from the second terminal over the D2D communication link on the first wireless resource, and passes the D2D communication link on the second wireless resource Transmitting data to the second terminal (ie, executing S3 1 1 ), the second terminal transmits data to the first terminal through the D2D communication link on the first radio resource, and receives the data from the second radio resource through the D2D communication link. The data of a terminal (ie, execute S3 14).

A resource allocation method for terminal-to-terminal communication provided by an embodiment of the present invention Sending the first configuration information to the first terminal, and sending the second configuration information to the second terminal, and then allocating the first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and scheduling the second D2D sub Assigning a second radio resource to the first terminal and the second terminal in the frame; finally generating the D2D scheduling information according to the allocated first radio resource and the allocated second radio resource, and adopting the first DCI in the PDCCH The first terminal and the second terminal indicate the first D 2 D scheduling information, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal acquires the first D2D from the PDCCH according to the second configuration information. The scheduling information is further configured to enable the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by transmitting a plurality of different resource allocation messages, respectively indicating that the transmitting resources of the respective terminals are compared with the receiving resources, the transmitting resources and the receiving of the first terminal and the second terminal may be simultaneously indicated by the first D2D scheduling information. Resources, which in turn can reduce the overhead of the control channel. Example 4

The embodiment of the invention provides a resource configuration method for terminal-to-terminal communication, which can be applied to D2D communication between the first terminal and the second terminal, and D2D communication between the second terminal and the third terminal (ie, point-to-multipoint or multi-point In the process of the point-to-point D2D communication, as shown in FIG. 3, as shown in FIG. 6 or FIG. 7, the resource configuration method for the terminal-to-terminal communication may include:

S401. The base station sends the first configuration information to the first terminal.

The first configuration information includes: D2D subframe configuration information, a first terminal sub-identity identifier, and D2D subframe configuration information is used to indicate a first D2D subframe and a second D2D subframe in the radio subframe.

S402. The base station sends the second configuration information to the second terminal.

The second configuration information includes: D2D subframe configuration information, a second terminal sub-identity identifier, and the public identity identifier, and the D2D subframe configuration information is used to indicate the number in the wireless subframe. A D2D subframe and a second D2D subframe.

Further, the resource configuration method for terminal-to-terminal communication in this embodiment may further include S403:

S403. The base station sends the third configuration information to the third terminal.

The third configuration information includes: D2D subframe configuration information and a third terminal sub-identity identifier, where the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe.

It should be noted that, the base station may carry the first configuration information, the second configuration information, and the third configuration information in different RRC messages, and send the first configuration information to the first by using different RRC messages. The terminal sends the second configuration information to the second terminal, and sends the third configuration information to the third terminal. Moreover, the sequence of execution of S401, S402, and S403 is not limited in the embodiment of the present invention.

5404. The base station allocates a first radio resource to the first terminal and the second terminal, and allocates a third radio resource to the second terminal and the third terminal, when scheduling the first D2D subframe.

Exemplarily, if in the wireless subframe, subframe 4 and subframe 9 are D2D subframes (subframe 4 is a first D2D subframe, subframe 9 is a second D2D subframe), and the base station may be in subframe 0. Scheduling subframe 4 (a first D2D subframe), allocating a first radio resource (eg, RB 10-RB50) for the first terminal and the second terminal; and allocating a third radio resource to the second terminal and the third terminal (eg, RB60-RB80).

S405. The base station allocates a second radio resource to the first terminal and the second terminal, and allocates a fourth radio resource to the second terminal and the third terminal, when scheduling the second D2D subframe.

Exemplarily, if in the wireless subframe, subframe 4 and subframe 9 are D2D subframes (subframe 4 is a first D2D subframe, subframe 9 is a second D2D subframe), and the base station may be in subframe 5 Scheduling subframe 9 (second D2D subframe), assigning a second radio resource (eg, RB60-RB80) to the first terminal and the second terminal; and allocating a fourth radio resource to the second terminal and the third terminal (eg, RB5) -RB9).

S406. The base station is configured according to the allocated first radio resource and the allocated second radio resource. The source generates first D2D scheduling information, and generates second D2D scheduling information according to the allocated third wireless resource and the allocated fourth wireless resource.

The first D2D scheduling information may include: at least one of location information of the first radio resource, location information of the second radio resource, MCS of D2D communication, NDI of D2D communication, and TPC information of D2D communication; wherein, D2D The NDI of the communication is used to indicate that the data transmitted when the D2D communication is performed is new data or retransmitted data.

The second D2D scheduling information may include: at least one of location information of the third radio resource, location information of the fourth radio resource, MCS of D2D communication, NDI of D2D communication, and transmission TPC information of D2D communication.

Further optionally, the first configuration information, the second configuration information, and the third configuration information may include: a public identity identifier. Specifically, the base station may carry the public identity identifier in the first configuration information, the second configuration information, and the third configuration information, and use the public identity identifier to respectively mask the first D2D scheduling information and the second D2D scheduling information, so that The first terminal may use the public identity identifier in the first configuration information to decode the first D2D scheduling information that is blocked by the base station, so that the second terminal may use the public identity identifier in the second configuration information to decode the first block of the base station. The D2D scheduling information and the second D2D scheduling information, so that the third terminal can use the public identity identifier in the third configuration information to decode the second D2D scheduling information that is blocked by the base station, so that the D2D scheduling information can be improved between the base station and each terminal. Information security at the time.

Correspondingly, the method of the embodiment of the present invention may further include: S407:

5407. The base station uses the public identity identifier to mask the first D2D scheduling information, and uses the public identity identifier to mask the second D2D scheduling information.

S408: The base station indicates the first D2D scheduling information to the first terminal and the second terminal by using the first DCI in the PDCCH, and indicates the second D2D scheduling information to the second terminal and the third terminal by using the second DCI in the PDCCH.

Specifically, in the embodiment of the present invention, the base station in S407 uses the public identity identifier to mask the D2-D scheduling information, and uses the public identity identifier to mask the second D2D scheduling. Therefore, the base station indicates the first D2D scheduling information to the first terminal and the second terminal by using the DCI in the PDCCH, where the base station sends the first D2D scheduling information that has been masked to the first by using the first DCI in the PDCCH. And the second D2D scheduling information is sent by the base station to the second terminal and the third terminal by using the second DCI in the PDCCH, where the base station sends the second D2D scheduling that is masked by the second DCI in the PDCCH. Information to the second terminal and the third terminal.

The first terminal may acquire, according to the first configuration information (the public identity identifier), the first D2D scheduling information that is indicated by the first DCI in the PDCCH, and the second terminal may obtain the base station according to the second configuration information (the public identity identifier). The first D2D scheduling information indicated by the first DCI in the PDCCH and the second D2D scheduling information indicated by the second DCI in the PDCCH by the base station, and the third terminal may acquire the base station in the PDCCH according to the third configuration information (public identity identifier). The second D2D scheduling information indicated by the second DCI. Specifically, the method of the embodiment of the present invention may further include S409-S412:

S409: The first terminal acquires the masked first D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe.

5410. The second terminal acquires the masked first D2D scheduling information from the PDCCH according to the public identity when scheduling the first D2D subframe and the second D2D subframe.

541 1. The second terminal acquires the masked second D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe.

5412. The third terminal acquires the masked second D2D scheduling information from the PDCCH according to the public identity when scheduling the first D2D subframe and the second D2D subframe.

It should be noted that, in an application scenario of the embodiment of the present invention, the first D2D scheduling information includes: a first transmitting and receiving indication, a second transmitting and receiving indication, and a first transmitting and receiving sub-identity identifier; the second D2D scheduling information includes: : a third transmit reception indication, a fourth transmit reception indication, and a second transmit reception sub-identity identifier.

The first transmit and receive indication is used to indicate that the first terminal and the second terminal perform the D2D communication on the first radio resource, according to the first transmit and receive sub-identity identifier Transmitting or receiving data; the second transmitting and receiving indication is used to indicate that the first terminal and the second terminal transmit or receive data according to the first transmitting and receiving sub-identity when performing D2D communication on the second radio resource.

The first transmission reception indication is a reception indication, and the second transmission reception indication is a transmission indication; or, the first transmission reception indication is a transmission indication, and the second transmission reception indication is a reception indication.

The second D2D scheduling information further includes: a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier.

The third transmit and receive indication is used to indicate that the second terminal and the third terminal transmit or receive data according to the second transmit and receive sub-identity when performing D2D communication on the third radio resource; When the second terminal and the third terminal perform D2D communication on the fourth radio resource, the second terminal receives the sub-identity identifier to transmit or receive data.

The third transmission reception indication is a reception indication, and the fourth transmission reception indication is a transmission indication; or the third transmission reception indication is a transmission indication, and the fourth transmission reception indication is a reception indication.

In this application scenario, after acquiring the D2D scheduling information, the first terminal and the second terminal may directly perform D2D communication with each other on the first radio resource or the second radio resource according to the first D2D scheduling information. After acquiring the second D2D scheduling information, the second terminal and the third terminal may directly perform D2D communication with each other on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

Further, in another application scenario of the embodiment of the present invention, the first D2D scheduling information may not include: a first transmit reception indication, a second transmit receive indication, a first transmit receive sub-identity identifier, and a second D2D The scheduling information may not include: a third transmit reception indication, a fourth transmit reception indication, and a second transmit receive sub-identity identifier.

In this application scenario, the base station may send a first transmit reception indication, a second transmit receive indication, a first transmit receive sub-identity identifier to the first terminal and the second terminal, and And transmitting a third transmit reception indication, a fourth transmit reception indication, and a second transmit reception sub-identity identifier to the second terminal and the third terminal. Therefore, as shown in FIG. 7, the method of the embodiment of the present invention may further include S413-S415:

5413. The first terminal receives a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier from the base station.

5414. The second terminal receives a first transmit reception indication, a second transmit receive indication, a first transmit receive sub-identity and a third transmit receive indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier from the base station.

541 5. The third terminal receives a third transmit reception indication, a fourth transmit reception indication, and a second transmit receive sub-identity identifier from the base station.

Exemplarily, the base station may send the first transmit reception indication, the second transmit receive indication, the first transmit receive sub-identity identifier to the first terminal and the second terminal by using different RRC messages, and send the third transmit by using different RRC messages. Receiving the indication, the fourth transmission receiving indication, and the second transmitting and receiving sub-identity identification to the second terminal and the third terminal.

It should be noted that, in this embodiment, the first transmit reception indication is a transmission indication, and the second transmission reception indication is a reception indication; or the first transmission reception indication is a reception indication, and the second transmission reception indication is a transmission indication.

Specifically, the first terminal may determine whether the first terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, and then determine, according to the determination result, that data is transmitted or received on the first radio resource or the second radio resource; Determining whether the second terminal sub-identity identifier is identical to the first transmit and receive sub-identity identifier, and then determining to transmit or receive data on the first radio resource or the second radio resource according to the determination result. Therefore, the method of the embodiment of the present invention may further include S416-S417:

541 6. The first terminal determines whether the first terminal sub-identity identifier is the same as the first transmission receiving sub-identity identifier.

It should be noted that, in an application scenario of the embodiment of the present invention, the first transmit reception indication is a transmission indication, and the second transmission reception indication is a reception indication. Specifically, in this application scenario, if the first terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, proceed to S420a; if the first terminal sub-identity identifier is different from the first transmit and receive sub-identity identifier, Continue to execute S420b.

Further, in another application scenario of the embodiment of the present invention, the first transmit reception indication is a reception indication, and the second transmission reception indication is a transmission indication.

Specifically, in this application scenario, if the first terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, proceed to S420b; if the first terminal sub-identity identifier is different from the first transmit-received sub-identity identifier, Continue to execute S420a.

S417. The second terminal determines whether the second terminal sub-identity identifier is the same as the first transmission receiving sub-identity identifier.

It should be noted that, in an application scenario of the embodiment of the present invention, the first transmit reception indication is a transmission indication, and the second transmission reception indication is a reception indication.

Specifically, in this application scenario, if the second terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, proceed to S421 a; if the second terminal sub-identity identifier is different from the first transmit and receive sub-identity identifier, Then continue to execute S421 b.

Specifically, in this application scenario, if the second terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, proceed to S421 b; if the second terminal sub-identity identifier is different from the first transmit and receive sub-identity identifier, Then continue to execute S421 a.

It should be noted that the third transmission reception indication is a transmission indication, and the fourth transmission reception indication is a reception indication; or the third transmission reception indication is a reception indication, and the fourth transmission reception indication is a transmission indication.

Specifically, the second terminal may determine whether the second terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, and then determine, according to the determination result, that data is transmitted or received on the third radio resource or the fourth radio resource; Determining whether the third terminal sub-identity identifier is the same as the second transmission sub-identity identifier, and then determining the result according to the judgment Determining to transmit or receive data on the third wireless resource or the fourth wireless resource. Therefore, the method of the embodiment of the present invention may further include S418-S419:

541 8. The second terminal determines whether the second terminal sub-identity identifier is the same as the second transmission receiving sub-identity identifier.

It should be noted that, in an application scenario of the embodiment of the present invention, the third transmit reception indication is a transmission indication, and the fourth transmission reception indication is a reception indication.

Specifically, in this application scenario, if the second terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, proceed to S422a; if the second terminal sub-identity identifier is different from the second transmit-received sub-identity identifier, Continue to execute S422b.

Further, in another application scenario of the embodiment of the present invention, the third transmit reception indication is a reception indication, and the fourth transmission reception indication is a transmission indication.

Specifically, in this application scenario, if the second terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, proceed to S422b; if the second terminal sub-identity identifier is different from the second transmit-received sub-identity identifier, Continue to execute S422a.

5419. The third terminal determines whether the third terminal sub-identity identifier and the second transmission receiving sub-identity identifier are the same.

Specifically, in this application scenario, if the third terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, proceed to S423 a; if the third terminal sub-identity identifier is different from the second transmit-received sub-identity identifier, Then continue to execute S423b.

Specifically, in this application scenario, if the third terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, proceed to S423b; if the third terminal sub-identity identifier is different from the second transmit-received sub-identity identifier, Continue to execute S423 a.

S420a, the first terminal transmits the number of the first wireless resource through the D2D communication link According to the second terminal, data from the second terminal is received over the second wireless resource via the D2D communication link.

S420b: The first terminal receives data from the second terminal on the first radio resource through the D2D communication link, and transmits data to the second terminal on the second radio resource through the D2D communication link.

S421 a. The second terminal transmits data to the first terminal on the first radio resource through the D2D communication link, and receives data from the first terminal on the second radio resource through the D2D communication link.

S421b. The second terminal receives data from the first terminal on the first radio resource through the D2D communication link, and transmits data to the first terminal on the second radio resource through the D2D communication link.

It should be noted that, in an application scenario of the embodiment of the present invention, if the first terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, the second terminal sub-identity identifier and the first transmit-received sub-identity identifier are different.

In the first scenario of the application scenario, if the first transmit reception indication is a transmission indication, and the second transmission reception indication is a reception indication, the first terminal may transmit data to the first wireless resource through the D2D communication link to The second terminal receives data from the second terminal over the D2D communication link on the second radio resource (ie, performs S420a); then the second terminal may receive the first terminal from the first radio resource through the D2D communication link. Data, transmitting data to the first terminal over the D2D communication link on the second wireless resource (ie, executing S421b).

In the second scenario of the application scenario, if the first transmit reception indication is a receive indication and the second transmit receive indication is a transmit indication, the first terminal may receive the receive from the first wireless resource through the D2D communication link. Data from the second terminal, transmitting data to the second terminal over the D2D communication link on the second radio resource (ie, performing S420b); then the second terminal may transmit data to the first radio resource through the D2D communication link a terminal, received by the D2D communication link on the second radio resource The data of a terminal (ie, S421 a is performed).

In another application scenario of the embodiment of the present invention, if the first terminal sub-identity identifier is different from the first transmit and receive sub-identity identifier, the second terminal sub-identity identifier is the same as the first transmit-received sub-identity identifier.

In the first scenario of the application scenario, if the first transmit reception indication is a transmission indication, and the second transmission reception indication is a reception indication, the first terminal may receive the reception from the first wireless resource through the D2D communication link. Data from the second terminal, transmitting data to the second terminal over the D2D communication link on the second radio resource (ie, performing S420b); then the second terminal may transmit data to the first radio resource through the D2D communication link A terminal receives data from the first terminal over the D2D communication link on the second wireless resource (ie, performs S421 a ).

In the second scenario of the application scenario, if the first transmit reception indication is a receive indication, and the second transmit receive indication is a transmit indication, the first terminal may transmit data to the first wireless resource through the D2D communication link to The second terminal receives data from the second terminal over the D2D communication link on the second radio resource (ie, performs S420a); then the second terminal may receive the first terminal from the first radio resource through the D2D communication link. Data, transmitting data to the first terminal over the D2D communication link on the second wireless resource (ie, executing S421b).

S422a. The second terminal transmits data to the third terminal on the third radio resource through the D2D communication link, and receives data from the third terminal on the fourth radio resource through the D2D communication link.

S422b. The second terminal receives data from the third terminal on the third radio resource through the D2D communication link, and transmits data to the third terminal on the fourth radio resource through the D2D communication link.

S423 a. The third terminal transmits data to the second terminal over the D2D communication link on the third radio resource, and receives data from the second terminal over the D2D communication link on the fourth radio resource. S423b. The third terminal receives data from the second terminal on the third radio resource through the D2D communication link, and transmits data to the second terminal on the fourth radio resource through the D2D communication link.

It should be noted that, in an application scenario of the embodiment of the present invention, if the second terminal sub-identity identifier is the same as the second transmit sub-sub-identity identifier, the third terminal sub-identity identifier and the second transmit-received sub-identity identifier are different.

In the first scenario of the application scenario, if the third transmit reception indication is a transmission indication, and the fourth transmission reception indication is a reception indication, the second terminal may transmit data to the third wireless resource through the D2D communication link to a third terminal, receiving data from the third terminal through the D2D communication link on the fourth radio resource (ie, performing S422a); then the third terminal may receive, on the third radio resource, the second terminal by using the D2D communication link. Data, transmitting data to the second terminal over the D2D communication link on the fourth wireless resource (ie, executing S423b).

In the second scenario of the application scenario, if the third transmit reception indication is a receive indication, and the fourth transmit receive indication is a transmit indication, the second terminal may receive the receive from the third wireless resource through the D2D communication link. Data from the third terminal, transmitting data to the third terminal through the D2D communication link on the fourth radio resource (ie, performing S422b); then the third terminal may transmit data to the third radio resource through the D2D communication link to the third terminal The second terminal receives data from the second terminal over the D2D communication link on the fourth wireless resource (ie, executes S423a).

In another application scenario of the embodiment of the present invention, if the second terminal sub-identity identifier is different from the second transmit sub-sub-identity identifier, the third terminal sub-identity identifier is the same as the second transmit-received sub-identity identifier.

In the first scenario of the application scenario, if the third transmit reception indication is a transmission indication, and the fourth transmission reception indication is a reception indication, the second terminal may receive the reception from the third wireless resource through the D2D communication link. Data from the third terminal, transmitting data to the third terminal over the D2D communication link on the fourth wireless resource (ie, executing S422b); then the third terminal may transmit data to the second terminal over the D2D communication link on the third radio resource, and receive data from the second terminal over the D2D communication link on the fourth radio resource (ie, perform S423a).

In the second scenario of the application scenario, if the third transmit reception indication is a receive indication, and the fourth transmit receive indication is a transmit indication, the second terminal may transmit data to the third wireless resource through the D2D communication link to a third terminal, receiving data from the third terminal through the D2D communication link on the fourth radio resource (ie, performing S422a); then the third terminal may receive, on the third radio resource, the second terminal by using the D2D communication link. Data, transmitting data to the second terminal over the D2D communication link on the fourth wireless resource (ie, executing S423b).

The method for configuring the terminal-to-terminal communication resource provided by the embodiment of the present invention, the base station sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal, and then is the first terminal when scheduling the first D2D subframe. And allocating, by the second terminal, the first radio resource, and allocating the second radio resource to the first terminal and the second terminal when scheduling the second D2D subframe; and finally generating, according to the allocated first radio resource and the allocated second radio resource The first D2D scheduling information is used to indicate the first D2D scheduling information to the first terminal and the second terminal by using the first DCI in the PDCCH, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, The second terminal acquires the first D2D scheduling information from the PDCCH according to the second configuration information, and further causes the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by transmitting a plurality of different resource allocation messages, respectively indicating that the transmitting resources of the respective terminals are compared with the receiving resources, the transmitting resources and the receiving of the first terminal and the second terminal may be simultaneously indicated by the first D2D scheduling information. Resources, which in turn can reduce the overhead of the control channel. Example 5

An embodiment of the present invention provides a base station, as shown in FIG. 8, including: a sending unit 51, The allocation unit 52 and the generation unit 53.

The sending unit 51 is configured to send the first configuration information to the first terminal, and send the second configuration information to the second terminal, where the first configuration information includes: the device to the device

The D2D subframe configuration information, the first terminal sub-identity identifier; the second configuration information includes: the D2D subframe configuration information, the second terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the radio subframe The first D2D subframe and the second D2D subframe.

The allocating unit 52 is configured to allocate a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and to be the first terminal when scheduling the second D2D subframe And the second terminal allocates a second radio resource.

The generating unit 53 is configured to generate first D 2 D scheduling information according to the first wireless resource that the allocation unit 52 has allocated and the second wireless resource that the allocation unit has allocated.

The sending unit 51 is further configured to: indicate, by using the first downlink control information DCI in the physical downlink control channel PDCCH, the first D2D scheduling information generated by the generating unit to the first terminal and the second terminal And the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal acquires the first PDCCH from the PDCCH according to the second configuration information. a D2D scheduling information, which in turn causes the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information.

Further, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, a modulation and coding mode MCS of the D2D communication, and a new data indication of the D2D communication. The transmit power of the NDI and the D2D communication controls at least one of the TPC information.

Further, the first configuration information further includes: a public identity identifier; the second configuration information further includes: the public identity identifier.

As shown in FIG. 9, the base station may further include: a masking unit 54. The masking unit 54 is configured to pass the physical downlink control channel in the sending unit 51

Before the first downlink control information DCI in the PDCCH indicates the first D2D scheduling information to the first terminal and the second terminal, the first D2D scheduling information is masked by using the public identity identifier.

The sending unit 51 is further configured to send, by using the first DCI in the PDCCH, the first D2D scheduling information that has been masked by the masking unit to the first terminal and the second terminal, The first terminal and the second terminal are configured to acquire the first D2D scheduling information from the PDCCH according to the public identity.

Further, in the first application scenario of the embodiment of the present invention, the D2D scheduling information further includes: a first transmit sub-identity identifier and a second transmit sub-identity identifier.

The first transmitter sub-identity identifier is used to indicate a sub-identity identifier of the terminal that transmits data when the first terminal and the second terminal perform the D2D communication on the first radio resource, The second transmitter identifier is used to indicate a sub-identity identifier of the terminal that transmits data when the first terminal and the second terminal perform the D2D communication on the second radio resource.

In this application scenario, the first emission sub-identity identifier is different from the second emission sub-identity identifier.

Further, in the second application scenario of the embodiment of the present invention, the first D2D scheduling information further includes: a first transmit and receive indication, a second transmit receive indication, and a first transmit and receive sub-identity identifier.

The first transmit and receive indication is used to indicate that the first terminal and the second terminal transmit the D2D communication according to the first transmit and receive sub-identity when performing the D2D communication on the first radio resource. Receive the data.

The second transmit and receive indication is used to indicate that the first terminal and the second terminal transmit or receive according to the first transmit and receive sub-identity when performing the D2D communication on the second radio resource. Data. Further, in a third application scenario of the embodiment of the present invention, the sending unit 51 is further configured to send a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier to the And the first terminal and the second terminal, when the first terminal and the second terminal perform the D2D communication on the first radio resource, according to the first D2D scheduling information and the first Transmitting a receiving sub-identity to transmit or receive the data, so that when the first terminal and the second terminal perform the D2D communication on the second radio resource, according to the first D2D scheduling information and The first transmit and receive sub-identity identifier transmits or receives the data.

Further, in the second application scenario and the third application scenario of the embodiment of the present invention, the first transmit and receive indication is a receive indication, and the second transmit receive indication is a transmit indication; or, the first The transmission reception indication is the transmission indication, and the second transmission reception indication is the reception indication.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the sending unit 51 is further configured to send the third configuration information to the third terminal, where the third configuration information includes: The D2D subframe configuration information and the third terminal sub-identity identifier are described.

The allocating unit 52 is further configured to: when scheduling the first D2D subframe The second terminal and the third terminal allocate a third radio resource, and allocate a fourth radio resource to the second terminal and the third terminal when scheduling the second D2D subframe.

The generating unit 53 is further configured to generate second D2D scheduling information according to the third radio resource that the allocation unit 52 has allocated and the fourth radio resource that the allocation unit has allocated.

The sending unit 51 is further configured to: by using the second DCI in the PDCCH, the second D2D scheduling information generated by the generating unit 53 to the second terminal and the third terminal, so as to enable the The second terminal acquires the second D2D scheduling information from the PDCCH according to the second configuration information, so that the third terminal acquires second D2D scheduling information from the PDCCH according to the third configuration information, and further And causing the second terminal and the third terminal to perform the D2D communication on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

Further, the second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, MCS of the D2D communication, NDI of the D2D communication, and the D2D communication. Transmit at least one of the TPC information.

Further, the third configuration information further includes: a public identity identifier.

The masking unit 54 is further configured to: before the sending unit indicates the second D2D scheduling information to the second terminal and the third terminal by using a second DCI in the PDCCH, using the public identity Identifying to mask the second D2D scheduling information;

The sending unit 51 is further configured to send, by using the second DCI in the PDCCH, the second D2D scheduling information that has been masked by the masking unit 54 to the second terminal and the third terminal. .

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the second D2D scheduling information further includes: a third transmit reception indication, a fourth transmit reception indication, and a second transmit receive sub-identity Logo.

The third transmit reception indication is used to indicate the second terminal and the first When the third terminal performs the D2D communication on the third radio resource, transmitting or receiving the data according to the second transmit and receive sub-identity identifier,

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the sending unit 51 is further configured to send a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity. Identifying to the second terminal and the third terminal, so that when the second terminal and the third terminal perform the D2D communication on the third radio resource, according to the second D2D scheduling information Transmitting or receiving the data with the second transmit and receive sub-identity identifier, so that when the second terminal and the third terminal perform the D2D communication on the fourth radio resource, according to the second The D2D scheduling information and the second transmit receive sub-identity transmit or receive the data.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the third transmit and receive indication is a receive indication, and the fourth transmit receive indication is a transmit indication; or, the third The transmit reception indication is the transmission indication, and the fourth transmission reception indication is the reception indication.

If the third transmission reception indication is a transmission indication, the fourth transmission reception indication is a reception indication, and the second terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, the The second terminal transmits data to the third terminal on the third radio resource, and receives data from the third terminal on the fourth radio resource.

If the third transmission reception indication is the reception indication, the fourth transmission reception indication is the transmission indication, and the second terminal sub-identity identifier is the same as the second transmission reception sub-identity identifier, The second terminal receives data from the third terminal on the third radio resource, and transmits data on the fourth radio resource to the Third terminal.

It should be noted that the specific description of some of the functional modules in the base station provided by the embodiment of the present invention may be referred to the corresponding content in the method embodiment, which is not described in detail in this embodiment.

The base station provided by the embodiment of the present invention sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal, and then allocates the first wireless to the first terminal and the second terminal when scheduling the first D2D subframe. The first radio resource is allocated to the first terminal and the second terminal when scheduling the second D2D subframe; and finally, the first D2D scheduling information is generated according to the allocated first radio resource and the allocated second radio resource, and The first DCI in the PDCCH indicates the first D2D scheduling information to the first terminal and the second terminal, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal is configured according to the second configuration information. Acquiring the first D2D scheduling information from the PDCCH, and further causing the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by transmitting a plurality of different resource allocation messages, respectively indicating that the transmitting resources of the respective terminals are compared with the receiving resources, the transmitting resources and the receiving of the first terminal and the second terminal may be simultaneously indicated by the first D2D scheduling information. Resources, which in turn can reduce the overhead of the control channel. Example 6

The embodiment of the present invention provides a terminal, as shown in FIG. 10, including: an obtaining unit 61 and a communication unit 62.

The receiving unit 61 is configured to receive configuration information that is sent by the base station, where the configuration information includes: D2D subframe configuration information, a terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the first D2D in the radio subframe. a subframe and a second D2D subframe; when scheduling the first D2D subframe and the second D2D subframe, acquiring, by using the configuration information, the first D2D scheduling indicated by the first DCI in the PDCCH according to the configuration information The first D2D scheduling information is that the base station is configured according to the scheduling of the first D2D subframe. The first terminal and the terminal are generated by the terminal and the first radio resource allocated by the first terminal and the second radio resource allocated by the terminal and the first terminal when the second D2D subframe is scheduled. There is a D2D communication link between them.

The communication unit 62 is configured to perform D2D communication with the first terminal on the first radio resource or the second radio resource according to the first D2D scheduling information acquired by the acquiring unit 61. .

Further, the first D2D scheduling information includes: location information of the first radio resource, location information of the second radio resource, MCS of the D2D communication, NDI of the D2D communication, and the D2D communication. At least one of the TPC information.

Further, the configuration information further includes: a public identity identifier. The acquiring unit 61 is further configured to: when the first D2D subframe and the second D2D subframe are scheduled, acquire the first masked first from the PDCCH according to the public identity identifier D2D scheduling information.

Further, in the first application scenario of the embodiment of the present invention, the first D2D scheduling information includes: a first transmitting sub-identity identifier and a second transmitting sub-identity identifier.

In the first application scenario, as shown in FIG. 1 , the communication unit 62 includes: a first communication module 621 and a second communication module 622.

The first communication module 621 is configured to: when the terminal sub-identity identifier is the same as the first sub-sub-identity identifier, transmit data to the first terminal by using the D2D communication link on the first radio resource. Receiving data from the first terminal over the D2D communication link on the second wireless resource.

The second communication module 622 is configured to receive, on the first radio resource, the D2D communication link from the first terminal, if the terminal sub-identity identifier is the same as the second sub-sub-identity identifier Data, transmitting data to the first terminal over the D2D communication link on the second wireless resource. Further, in the second application scenario of the embodiment of the present invention, the first D2D scheduling information includes: a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier.

Further, in a third application scenario of the embodiment of the present invention, the acquiring unit 61 is further configured to receive a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier from the base station. .

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the first transmit and receive indication is a receive indication, the second transmit receive indication is a transmit indication, or the first transmit The receiving indication is the transmitting indication, and the second transmitting receiving indication is the receiving indication.

As shown in FIG. 12, the communication unit 62 may include: a third communication module 623 and a fourth communication module 624.

The third communication module 623 is configured to: if the first transmit and receive indication is a transmit indication, the second transmit receive indication is a receive indication, and the terminal sub-identity identifier is the same as the first transmit and receive sub-identity identifier, And transmitting data to the first terminal by using the D2D communication link according to the first D2D scheduling information on the first radio resource, and transmitting, according to the first D2D scheduling information, on the second radio resource. The D2D communication link receives data from the first terminal.

The fourth communication module 624 is configured to: if the first transmit and receive indication is the receive indication, the second transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the first transmit receiver If the identity identifiers are the same, the data from the first terminal is received by the D2D communication link according to the first D2D scheduling information on the first radio resource, according to the second radio resource. A D2D scheduling information is transmitted to the first terminal through the D2D communication link.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the acquiring unit 61 is further configured to: when scheduling the first D2D subframe and the second D2D subframe, Obtaining, by the configuration information, the base station by using the PDCCH The second D2D scheduling information indicated by the second DCI, where the second D2D scheduling information is a third radio resource and scheduling allocated by the base station to the terminal and the third terminal according to the scheduling of the first D2D subframe The second D 2 D subframe is generated by the fourth radio resource allocated by the terminal and the third terminal, and the D2D communication link exists between the third terminal and the terminal.

The communication unit 62 is further configured to perform, on the third radio resource or the fourth radio resource, with the third terminal according to the second D2D scheduling information generated by the acquiring unit 61. Describe D2D communication.

The second D2D scheduling information includes: location information of the third radio resource, location information of the fourth radio resource, MCS of the D2D communication, NDI of the D2D communication, and the D2D communication. Transmit at least one of the TPC information.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the acquiring unit 61 is further configured to: when scheduling the first D2D subframe and the second D2D subframe, Acquiring the second D2D scheduling information that has been masked from the PDCCH according to the public identity.

Further, in the second application scenario of the embodiment of the present invention, the configuration information further includes: a terminal sub-identity identifier.

The second D2D scheduling information includes: a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier.

Further, in a third application scenario of the embodiment of the present invention, the acquiring unit 61 is further configured to receive a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier from the base station. .

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the third transmit and receive indication is a receive indication, the fourth transmit receive indication is a transmit indication, or the third transmit Receiving the indication as the transmitting indication, The fourth transmission reception indication is the reception indication.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, as shown in FIG. 12, the communication unit 62 may further include: a fifth communication module 625 and a sixth communication module 626.

The fifth communication module 625 is configured to: if the third transmit and receive indication is a transmit indication, the fourth transmit receive indication is a receive indication, and the terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier, Transmitting, by the D2D communication link, the data to the third terminal according to the second D2D scheduling information, and transmitting, by using the second D2D scheduling information, on the fourth radio resource. The D2D communication link receives data from the third terminal.

a sixth communication module 626, configured to: if the third transmit reception indication is the receive indication, the fourth transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the second transmit receiver If the identity identifier is the same, the data from the third terminal is received by the D2D communication link according to the second D2D scheduling information on the third radio resource, according to the fourth radio resource. The second D2D scheduling information transmits data to the third terminal through the D2D communication link.

The terminal in this embodiment is the second terminal in other embodiments.

It should be noted that the specific description of some of the functional modules in the terminal provided by the embodiment of the present invention may be referred to the corresponding content in the method embodiment, which is not described in detail in this embodiment.

The terminal provided by the embodiment of the present invention, when receiving the configuration information sent by the base station, when scheduling the first D2D subframe and the second D2D subframe, acquiring, according to the configuration information, the first D2D scheduling information indicated by the first DCI in the PDCCH by the base station, The first D2D scheduling information is a first wireless resource allocated by the base station to the terminal and the first terminal when scheduling the first D 2 D subframe, and a second wireless allocated to the terminal and the first terminal when the second D 2 D subframe is scheduled. a D2D communication link exists between the first terminal and the terminal, and D 2 D is performed on the first radio resource or the second radio resource with the first terminal according to the first D2D scheduling information. Communication. Compared with the prior art, each terminal receives a different resource allocation message for indicating the transmission resource and the receiving resource of each terminal, and the terminals on both sides of the D 2D link may use the same scheduling information (the first D2D scheduling information or The second D2D scheduling information) determines the transmitting resource and the receiving resource of the terminal, thereby reducing the overhead of the control channel. Example 7

The embodiment of the present invention provides a base station, as shown in FIG. 13, including: a transmitter 71 and a processor 72.

The transmitter 71 is configured to send the first configuration information to the first terminal, and send the second configuration information to the second terminal, where the first configuration information includes: the device to the device D2D subframe configuration information, the first terminal The second configuration information includes: the D2D subframe configuration information, the second terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D in the radio subframe Subframe.

The processor 72 is configured to allocate a first radio resource to the first terminal and the second terminal when scheduling the first D2D subframe, and to be the first terminal when scheduling the second D2D subframe And the second terminal allocates a second radio resource; and generates first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource.

The transmitter 71 is further configured to: indicate, by using the first downlink control information DCI in the physical downlink control channel PDCCH, the first D2D scheduling generated by the processor 72 to the first terminal and the second terminal. The information, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal acquires the information from the PDCCH according to the second configuration information. And the first D2D scheduling information, so that the first terminal and the second terminal perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information.

Further, the first D2D scheduling information includes: the first radio resource The location information, the location information of the second radio resource, the modulation and coding scheme MCS of the D2D communication, and the new data of the D2D communication indicate at least one of NDI and transmit power control TPC information of the D2D communication.

Further, the first configuration information further includes: a public identity identifier; the second configuration information further includes: the public identity identifier. The processor 72 is further configured to: before the sending, by the transmitter 71, the first D2D scheduling information by using the downlink control information DCI in the physical downlink control channel PDCCH to the first terminal and the second terminal, The first D2D scheduling information is masked with the public identity.

The transmitter 71 is further configured to send, by using the DCI in the PDCCH, the first D2D scheduling information that is masked by the processor 72 to the first terminal and the second terminal, so that The first terminal and the second terminal acquire the first D2D scheduling information from the PDCCH according to the public identity identifier.

The first transmit and receive indication is used to indicate that the first terminal and the second terminal perform the D2D communication on the first radio resource, according to the first The transmit receiver identity identifies to transmit or receive the data.

Further, in a third application scenario of the embodiment of the present invention, the transmitter 71 is further configured to send a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier to the And the first terminal and the second terminal, when the first terminal and the second terminal perform the D2D communication on the first radio resource, according to the first D2D scheduling information and the first Transmitting a receiving sub-identity to transmit or receive the data, so that when the first terminal and the second terminal perform the D2D communication on the second radio resource, according to the first D2D scheduling information and The first transmit and receive sub-identity identifier transmits or receives the data.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the first transmit and receive indication is a receive indication, and the second transmit receive indication is a transmit indication; or, the first The transmission reception indication is the transmission indication, and the second transmission reception indication is the reception indication.

Further, in the second application scenario or the third application field in the embodiment of the present invention In the above, the transmitter 71 is further configured to send the third configuration information to the third terminal, where the third configuration information includes: the D2D subframe configuration information, the third terminal sub-identity identifier; And the third terminal and the third terminal are allocated a third radio resource when the first D2D subframe is scheduled, and the second terminal and the second subframe are scheduled when the second D2D subframe is scheduled. The third terminal allocates a fourth radio resource; and generates second D 2 D scheduling information according to the allocated third radio resource and the allocated fourth radio resource.

The transmitter 71 is further configured to: indicate, by using the second DCI in the PDCCH, the second D2D scheduling information to the second terminal and the third terminal, so that the second terminal is configured according to the Obtaining the second D2D scheduling information from the PDCCH according to the third configuration information, so that the third terminal acquires second D2D scheduling information from the PDCCH according to the third configuration information, and further causes the second terminal and the The third terminal performs the D2D communication on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

Further, the third configuration information further includes: a public identity identifier. The processor 72 is further configured to: before the transmitter 71 indicates the second D2D scheduling information to the second terminal and the third terminal by using a second DCI in the PDCCH The public identity identifies the second D2D scheduling information.

The transmitter 71 is further configured to send, by using the second DCI in the PDCCH, the second D2D scheduling information that is masked by the processor 72 to the second terminal and the third terminal.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the second D2D scheduling information further includes: a third transmitting and receiving indication, and a fourth sending The shot receiving indication, the second transmitting and receiving sub-identity identifier.

The third transmit and receive indication is used to indicate that the second terminal and the third terminal perform the D2D communication on the third radio resource, according to the second transmit and receive sub-identity identifier or Receive the data.

Further, the transmitter 71 is further configured to send a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier to the second terminal and the third terminal, so that the first And when the second terminal and the third terminal perform the D2D communication on the third radio resource, transmitting or receiving the data according to the second D2D scheduling information and the second transmit and receive sub-identity identifier, so that Transmitting or receiving the data according to the second D2D scheduling information and the second transmit and receive sub-identity identifier when the second terminal and the third terminal perform the D2D communication on the fourth radio resource. .

The base station provided by the embodiment of the present invention sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal, and then allocates the first wireless to the first terminal and the second terminal when scheduling the first D2D subframe. The first radio resource is allocated to the first terminal and the second terminal when scheduling the second D2D subframe; and finally, the first D2D scheduling information is generated according to the allocated first radio resource and the allocated second radio resource, and The first DCI in the PDCCH indicates the first D2D scheduling information to the first terminal and the second terminal, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal is configured according to the second configuration information. Acquiring the first D2D scheduling information from the PDCCH, and further causing the first terminal and the second terminal to perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by transmitting a plurality of different resource allocation messages, respectively indicating that the transmitting resources of the respective terminals are compared with the receiving resources, the transmitting resources and the receiving of the first terminal and the second terminal may be simultaneously indicated by the first D2D scheduling information. Resources, which in turn can reduce the overhead of the control channel. Example 8

The embodiment of the present invention provides a terminal, as shown in FIG. 14, including: a receiver 81 and a processor 82.

The receiver 81 is configured to receive configuration information that is sent by the base station, where the configuration information includes: D2D subframe configuration information, a terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the first D2D in the radio subframe. Subframe and second D2D subframe.

The processor 82 is configured to: when the first D2D subframe and the second D2D subframe are scheduled, acquire the base station according to the configuration information received by the receiver 81 The first D2D scheduling information indicated by the first DCI in the PDCCH, where the first D2D scheduling information is the first radio resource allocated by the base station to the terminal and the first terminal according to the scheduling of the D2D subframe a second D2D subframe is scheduled to be generated by the terminal and the second radio resource allocated by the first terminal, and a D2D communication link exists between the first terminal and the terminal; The D2D scheduling information performs D2D communication with the first terminal on the first radio resource or the second radio resource.

Further, the configuration information further includes: a public identity identifier. The processor 82 is further configured to: when the first D2D subframe and the second D2D subframe are scheduled, acquire the masked first D2D scheduling information from the PDCCH according to the public identity identifier. .

The public identity identifier is used by the base station to mask the first D2D scheduling information.

In the first application scenario, as shown in FIG. 15, the terminal further includes: a transmitter 83.

The transmitter 83 is configured to send data to the first terminal by using the D2D communication link on the first radio resource if the terminal sub-identity identifier is the same as the first sub-sub-identity identifier.

The receiver 81 is further configured to receive, by the D2D communication link, the first terminal from the second radio resource if the terminal sub-identity identifier is the same as the first sub-sub-identity identifier The data.

The receiver 81 is further configured to pass the D2D communication link on the first radio resource if the terminal sub-identity identifier is the same as the second sub-sub-identity identifier Receiving data from the first terminal.

The transmitter 83 is further configured to: when the terminal sub-identity identifier is the same as the second sub-sub-identity identifier, transmit data to the first by using the D2D communication link on the second radio resource. terminal.

Further, in the second application scenario of the embodiment of the present invention, the first D2D scheduling information includes: a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier.

Further, in a third application scenario of the embodiment of the present invention, the receiver 81 is further configured to receive a first transmit reception indication, a second transmit receive indication, and a first transmit receive sub-identity identifier from the base station. .

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the transmitter 83 is further configured to: if the first transmit and receive indication is the transmit indication, the second transmit Receiving the indication as the receiving indication, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity identifier, and then passing the D according to the first D 2 D scheduling information on the first radio resource. The 2D communication link transmits data to the first terminal.

The receiver 81 is further configured to: if the first transmit and receive indication is the transmit indication, the second transmit and receive indication is the receive indication, and the terminal sub-identity identifier and the first transmit and receive If the sub-identities are the same, the data from the first terminal is received by the D2D communication link according to the first D2D scheduling information on the second radio resource.

The receiver 81 is further configured to: if the first transmit and receive indication is the receive indication, the second transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the first transmit and receive The child identity is the same, then on the first wireless resource Receiving data from the first terminal over the D2D communication link according to the first D2D scheduling information.

The transmitter 83 is further configured to: if the first transmit and receive indication is the receive indication, the second transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the first transmit and receive If the sub-identities are the same, the data is transmitted to the first terminal by using the D2D communication link according to the first D2D scheduling information on the second radio resource.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the processor 82 is further configured to: when scheduling the first D2D subframe and the second D2D subframe, Acquiring, according to the configuration information, second D2D scheduling information indicated by the second DCI in the PDCCH by the base station, where the second D2D scheduling information is that the base station is configured according to scheduling the first D2D subframe a third radio resource allocated by the terminal and the third terminal, and a fourth radio resource allocated for the terminal and the third terminal when the second D 2 D subframe is scheduled, the third terminal and the third terminal The D2D communication link exists between the terminals; and the D2D communication is performed with the third terminal on the third radio resource or the fourth radio resource according to the second D2D scheduling information.

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the processor 82 is further configured to: when scheduling the first D2D subframe and the second D2D subframe, Acquiring the second D2D scheduling information that has been masked from the PDCCH according to the public identity.

Further, in the second application scenario of the embodiment of the present invention, the second D2D The scheduling information includes: a third transmit reception indication, a fourth transmit reception indication, and a second transmit reception sub-identity identifier.

Further, in a third application scenario of the embodiment of the present invention, the receiver 81 is further configured to receive a third transmit reception indication, a fourth transmit receive indication, and a second transmit receive sub-identity identifier from the base station. .

Further, in the second application scenario or the third application scenario of the embodiment of the present invention, the transmitter 83 is further configured to: if the third transmit and receive indication is a transmit indication, the fourth transmit receive indication Receiving the indication, and the terminal sub-identity identifier is the same as the second transmit-received sub-identity identifier, transmitting data on the third radio resource to the D2D communication link according to the second D2D scheduling information to The third terminal.

The receiver 81 is further configured to: if the third transmit and receive indication is a transmit indication, the fourth transmit receive indication is a receive indication, and the terminal sub-identity identifier is the same as the second transmit and receive sub-identity identifier And receiving, by the D2D communication link, data from the third terminal according to the second D2D scheduling information on the fourth radio resource.

The receiver 81 is further configured to: if the third transmit reception indication is the receive indication, the fourth transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the second transmit receive If the sub-identities are the same, the data from the third terminal is received by the D2D communication link according to the second D2D scheduling information on the third radio resource. The transmitter 83 is further configured to: if the third transmit reception indication is the receive indication, the fourth transmit receive indication is the transmit indication, and the terminal sub-identity identifier and the second transmit receive If the sub-identities are the same, the data is transmitted to the third terminal by using the D2D communication link according to the second D2D scheduling information on the fourth radio resource.

The terminal provided by the embodiment of the present invention, when receiving the configuration information sent by the base station, when scheduling the first D2D subframe and the second D2D subframe, acquiring, according to the configuration information, the first D2D scheduling information indicated by the first DCI in the PDCCH by the base station, The first D2D scheduling information is a first wireless resource allocated by the base station to the terminal and the first terminal when scheduling the first D 2 D subframe, and a second wireless allocated to the terminal and the first terminal when the second D 2 D subframe is scheduled. And generating, by the resource, a D2D communication link between the first terminal and the terminal; performing D 2 D communication with the first terminal on the first wireless resource or the second wireless resource according to the first D2D scheduling information. Compared with the prior art, each terminal receives a different resource allocation message for indicating the transmission resource and the receiving resource of each terminal, and the terminals on both sides of the D 2D link may use the same scheduling information (the first D2D scheduling information or The second D2D scheduling information) determines the transmitting resource and the receiving resource of the terminal, thereby reducing the overhead of the control channel.

Example 9

The embodiment of the present invention provides a resource configuration system for terminal-to-terminal communication, as shown in FIG. 2, including: a base station, a first terminal, and a second terminal.

The base station is configured to send the first configuration information to the first terminal, and send the second configuration information to the second terminal, where the first configuration information includes: the device-to-device D2D subframe configuration information, the first terminal sub-identity identifier The second configuration information includes: the D2D subframe configuration information, the second terminal sub-identity identifier; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the radio subframe ; stated in the schedule Allocating a first radio resource to the first terminal and the second terminal in a first D2D subframe, and allocating a second radio to the first terminal and the second terminal when scheduling the second D2D subframe Generating first D2D scheduling information according to the allocated first radio resource and the allocated second radio resource, and transmitting the first downlink control information DCI in the physical downlink control channel PDCCH to the first And the second terminal indicates the first D2D scheduling information, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal Acquiring the first D2D scheduling information from the PDCCH according to the second configuration information, so that the first terminal and the second terminal are in the first radio resource or the location according to the first D2D scheduling information. Performing D2D communication on the second wireless resource.

The first terminal is configured to receive the first configuration information that is sent by the base station, where the first configuration information includes: D2D subframe configuration information, a first terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the radio subframe. a first D2D subframe and a second D2D subframe; when scheduling the first D2D subframe and the second D2D subframe, acquiring, by using the first configuration information, the first DCI in the PDCCH through the PDCCH And indicating the first D2D scheduling information, where the first D2D scheduling information is the first radio resource and the scheduling that are allocated by the base station to the second terminal and the first terminal according to the scheduling of the first D2D subframe a second D 2 D subframe is generated by the second terminal and the second radio resource allocated by the first terminal, and a D2D communication link exists between the first terminal and the second terminal; The first D2D scheduling information performs D2D communication with the second terminal on the first radio resource or the second radio resource.

The second terminal is configured to receive the second configuration information that is sent by the base station, where the second configuration information includes: D2D subframe configuration information, a first terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the radio subframe. a first D2D subframe and a second D2D subframe; when scheduling the first D2D subframe and the second D2D subframe, acquiring, by using the second configuration information, the first DCI in the PDCCH through the PDCCH Indicated first D2D scheduling information, where the first D2D scheduling information is that the base station performs the first D2D according to scheduling And generating, by the second terminal, the first radio resource allocated by the second terminal and the first terminal, and the second radio resource allocated to the second terminal and the first terminal when scheduling the second D 2 D subframe a D2D communication link exists between the first terminal and the second terminal; and the first terminal is configured on the first radio resource or the second radio resource according to the first D2D scheduling information. Perform D2D communication.

Further, as shown in FIG. 3, in an application scenario of the embodiment of the present invention, the terminal-to-terminal communication resource configuration system may further include: a third terminal.

In this application scenario, the base station is further configured to send the third configuration information to the third terminal, where the third configuration information includes: the D2D subframe configuration information, the third terminal sub-identity identifier; Allocating a third radio resource to the second terminal and the third terminal when the first D2D subframe is configured, and allocating a fourth to the second terminal and the third terminal when scheduling the second D2D subframe Generating, according to the allocated third radio resource and the allocated fourth radio resource, second D2D scheduling information, and using the second DCI in the PDCCH to the second terminal and the first The third terminal indicates the second D2D scheduling information, so that the second terminal acquires the second D2D scheduling information from the PDCCH according to the second configuration information, so that the third terminal is configured according to the third Obtaining the second D2D scheduling information from the PDCCH, and then causing the second terminal and the third terminal to be in the third radio resource or the fourth radio resource according to the second D 2 D scheduling information. Upward The D2D communication.

The third terminal is configured to receive the third configuration information that is sent by the base station, where the third configuration information includes: D2D subframe configuration information, a third terminal sub-identity identifier, and the D2D subframe configuration information is used to indicate the wireless sub-interface. a first D2D subframe and a second D2D subframe in the frame; when scheduling the first D2D subframe and the second D2D subframe, acquiring, by using the third configuration information, the base station by using a PDCCH a second D2D scheduling information indicated by the DCI, where the first D2D scheduling information is a third radio resource allocated by the base station to the second terminal and the third terminal according to the scheduling of the first D 2 D subframe Dispatching the second terminal and the third terminal when the second D2D subframe is scheduled a D2D communication link exists between the third terminal and the second terminal, and the first D2D scheduling information is used on the third radio resource or the fourth radio resource according to the first D2D scheduling information. The second terminal performs D2D communication.

It should be noted that the specific description of some of the functional modules in the terminal-to-terminal communication resource configuration system provided by the embodiment of the present invention may be referred to the corresponding content in the method embodiment.

The resource configuration system for terminal-to-terminal communication provided by the embodiment of the present invention, the base station sends the first configuration information to the first terminal, and sends the second configuration information to the second terminal, and then is first when scheduling the first D2D subframe. The terminal and the second terminal allocate the first radio resource, allocate the second radio resource to the first terminal and the second terminal when scheduling the second D2D subframe; and finally, according to the allocated first radio resource and the allocated second radio resource Generating the first D2D scheduling information, and indicating the first D2D scheduling information to the first terminal and the second terminal by using the first DCI in the PDCCH, so that the first terminal acquires the first D2D scheduling information from the PDCCH according to the first configuration information. And causing the second terminal to acquire the first D2D scheduling information from the PDCCH according to the second configuration information, so that the first terminal and the second terminal perform D2D communication on the first radio resource or the second radio resource according to the first D2D scheduling information. In the prior art, by transmitting a plurality of different resource allocation messages, respectively indicating that the transmitting resources of the respective terminals are compared with the receiving resources, the transmitting resources and the receiving of the first terminal and the second terminal may be simultaneously indicated by the first D2D scheduling information. Resources, which in turn can reduce the overhead of the control channel.

Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again. In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as 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 exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. . The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

claims

1. A resource configuration method for terminal-to-terminal communication, characterized in that it includes: sending first configuration information to a first terminal, and sending second configuration information to a second terminal, where the first configuration information includes: a device to The device D2D subframe configuration information and the first terminal sub-identity; the second configuration information includes: the D2D sub-frame configuration information and the second terminal sub-identity; the D2D subframe configuration information is used to indicate a wireless subframe The first D2D subframe and the second D2D subframe in;

When scheduling the first D2D subframe, a first wireless resource is allocated to the first terminal and the second terminal, and when the second D2D subframe is scheduled, the first terminal and the second terminal are allocated Allocate second wireless resources;

The first D2D scheduling information is generated according to the allocated first wireless resource and the allocated second wireless resource, and is sent to the first terminal and the first terminal through the first downlink control information DCI in the physical downlink control channel PDCCH. The second terminal indicates the first D2D scheduling information, so that the first terminal obtains the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal obtains the first D2D scheduling information according to the first configuration information. The second configuration information acquires the first D2D scheduling information from the PDCCH, thereby enabling the first terminal and the second terminal to perform the operation on the first radio resource or the third terminal according to the first D2D scheduling information. D2D communication is performed on two wireless resources.

2. The resource configuration method for end-to-end communication according to claim 1, characterized in that:

The first D2D scheduling information includes: the location information of the first wireless resource, the location information of the second wireless resource, the modulation and coding scheme MCS of the D2D communication, the new data indication NDI of the D2D communication and the At least one item of the transmit power control TPC information of the D2D communication.

3. The resource configuration method for terminal-to-terminal communication according to claim 1, wherein the first configuration information further includes: a public identity identifier; the second configuration information further includes: the public identity identifier;

The first downlink control information DCI in the physical downlink control channel PDCCH indicates to the first terminal and the second terminal the first D2D scheduling information. Before, the method also includes:

Using the public identity identifier to mask the first D2D scheduling information;

The indicating the first D2D scheduling information to the first terminal and the second terminal through the first downlink control information DCI in the physical downlink control channel PDCCH includes: using the first downlink control information DCI in the PDCCH. The DCI sends the masked first D2D scheduling information to the first terminal and the second terminal, so that the first terminal and the second terminal obtain it from the PDCCH according to the public identity identifier. The first D2D scheduling information.

4. The resource configuration method for end-to-end communication according to any one of claims 1 to 3, characterized in that:

The first D2D scheduling information also includes: a first transmitting sub-identity and a second transmitting sub-identity;

Wherein, the first transmitting sub-identity is used to indicate the sub-identity of the terminal that transmits data when the first terminal and the second terminal perform the D2D communication on the first wireless resource, The second transmitting sub-identity is used to indicate the sub-identity of the terminal that transmits data when the first terminal and the second terminal perform the D2D communication on the second wireless resource; the first transmitting sub-identity The identity is different from the second transmitted sub-identity.

5. The resource configuration method for end-to-end communication according to any one of claims 1 to 3, characterized in that:

The first D2D scheduling information also includes: a first transmitting and receiving indication, a second transmitting and receiving indication, and a first transmitting and receiving sub-identity;

Wherein, the first transmitting and receiving indication is used to instruct the first terminal and the second terminal to transmit or transmit according to the first transmitting and receiving sub-identity when performing the D2D communication on the first wireless resource. receive said data;

The second transmitting and receiving instruction is used to instruct the first terminal and the second terminal to transmit or receive the data according to the first transmitting and receiving sub-identity when performing the D2D communication on the second wireless resource. Describe the data.

6. Resource allocation for end-to-end communication according to any one of claims 1-3 The setting method is characterized in that it also includes:

Send a first transmitting and receiving instruction, a second transmitting and receiving instruction, and a first transmitting and receiving sub-identity to the first terminal and the second terminal, so that the first terminal and the second terminal are in the first terminal. When performing the D2D communication on a wireless resource, according to the first

The D2D scheduling information and the first transmitting and receiving sub-identity transmit or receive the data, so that when the first terminal and the second terminal perform the D2D communication on the second wireless resource, according to the The first D2D scheduling information and the first transmitting and receiving sub-identity are used to transmit or receive the data.

7. The resource configuration method for terminal-to-terminal communication according to claim 5 or 6, characterized in that:

The first transmitting and receiving instruction is a receiving instruction, and the second transmitting and receiving instruction is a transmitting instruction; or, the first transmitting and receiving instruction is the transmitting instruction, and the second transmitting and receiving instruction is the receiving instruction;

Wherein, if the first transmitting and receiving instruction is a transmitting instruction, the second transmitting and receiving instruction is a receiving instruction, and the first terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity identifier, then the third A terminal transmits data to the second terminal on the first wireless resource, and receives data from the second terminal on the second wireless resource; if the first transmission and reception instruction is the reception instruction , the second transmitting and receiving instruction is the transmitting instruction, and the first terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity identifier, then the first terminal receives on the first wireless resource Data from the second terminal is transmitted to the second terminal on the second wireless resource.

8. The resource configuration method for terminal-to-terminal communication according to any one of claims 1 to 3, characterized in that, further comprising:

Send third configuration information to the third terminal, where the third configuration information includes: the D2D subframe configuration information and the third terminal sub-identity;

When scheduling the first D2D subframe, a third wireless resource is allocated to the second terminal and the third terminal, and when the second D2D subframe is scheduled, the second terminal and the third terminal are allocated Allocate fourth wireless resources; Generate second D2D scheduling information according to the allocated third wireless resource and the allocated fourth wireless resource, and indicate it to the second terminal and the third terminal through the second DCI in the PDCCH The second D2D scheduling information is so that the second terminal obtains the second D2D scheduling information from the PDCCH according to the second configuration information, so that the third terminal obtains the second D2D scheduling information from the PDCCH according to the third configuration information. The PDCCH acquires second D2D scheduling information, thereby causing the second terminal and the third terminal to perform the D2D on the third wireless resource or the fourth wireless resource according to the second D2D scheduling information. communication.

9. The resource configuration method for end-to-end communication according to claim 8, characterized in that,

The second D2D scheduling information includes: location information of the third wireless resource, location information of the fourth wireless resource, MCS of the D2D communication, NDI of the D2D communication, and transmission TPC of the D2D communication. at least one item of information.

10. The resource configuration method for terminal-to-terminal communication according to claim 8, wherein the third configuration information further includes: a public identity identifier;

Before indicating the second D2D scheduling information to the second terminal and the third terminal through the second DCI in the PDCCH, the method further includes:

Using the public identity identifier to mask the second D2D scheduling information;

Instructing the second D2D scheduling information to the second terminal and the third terminal through the second DCI in the PDCCH includes:

The masked second D2D scheduling information is sent to the second terminal and the third terminal through the second DCI in the PDCCH.

1 1. The resource configuration method for end-to-end communication according to any one of claims 8-10, characterized in that,

The second D2D scheduling information also includes: a third transmitting and receiving instruction, a fourth transmitting and receiving instruction, and a second transmitting and receiving sub-identity;

Wherein, the third transmitting and receiving instruction is used to instruct the second terminal and the third terminal to transmit or transmit according to the second transmitting and receiving sub-identity when performing the D2D communication on the third wireless resource. receive said data; The fourth transmitting and receiving instruction is used to instruct the second terminal and the third terminal to transmit or receive the data according to the second transmitting and receiving sub-identity when performing the D2D communication on the fourth wireless resource. Describe the data.

12. The resource configuration method for end-to-end communication according to any one of claims 8-10, characterized in that, further comprising:

Send a third transmitting and receiving instruction, a fourth transmitting and receiving instruction, and a second transmitting and receiving sub-identity to the second terminal and the third terminal, so that the second terminal and the third terminal are connected in the first When the D2D communication is performed on three wireless resources, the data is transmitted or received according to the second D2D scheduling information and the second transmitting and receiving sub-identity, so that the second terminal and the third terminal are in When the D2D communication is performed on the fourth wireless resource, the data is transmitted or received according to the second D2D scheduling information and the second transmitting and receiving sub-identity.

13. The resource configuration method for end-to-end communication according to claim 11 or 12, characterized in that:

The third transmitting and receiving instruction is a receiving instruction, and the fourth transmitting and receiving instruction is a transmitting instruction; or, the third transmitting and receiving instruction is the transmitting instruction, and the fourth transmitting and receiving instruction is the receiving instruction;

Wherein, if the third transmitting and receiving instruction is a transmitting instruction, the fourth transmitting and receiving instruction is a receiving instruction, and the second terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity identifier, then the third transmitting and receiving instruction is a receiving instruction. The second terminal transmits data to the third terminal on the third wireless resource, and receives data from the third terminal on the fourth wireless resource; if the third transmission and reception instruction is the reception instruction. , the fourth transmitting and receiving instruction is the transmitting instruction, and the second terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity identifier, then the second terminal receives on the third wireless resource The data from the third terminal is transmitted to the third terminal on the fourth wireless resource.

14. A resource configuration method for terminal-to-terminal communication, characterized in that it includes: receiving configuration information sent by a base station, where the configuration information includes: D2D subframe configuration information, terminal subidentity identification; the D2D subframe configuration information Used to indicate wireless subframe The first D2D subframe and the second D2D subframe in;

When scheduling the first D2D subframe and the second D2D subframe, obtain the first D2D scheduling information indicated by the base station through the first DCI in the PDCCH according to the configuration information, and the first D2D scheduling information The base station assigns the first radio resource to the second terminal and the first terminal when scheduling the first D2D subframe and the second terminal and the third terminal when scheduling the second D2D subframe. generated by a second wireless resource allocated by a terminal, and a D2D communication link exists between the first terminal and the second terminal; according to the first D2D scheduling information, the first wireless resource or the second Perform D2D communication with the first terminal on wireless resources.

15. The resource configuration method for terminal-to-terminal communication according to claim 14, characterized in that,

The first D2D scheduling information includes: location information of the first wireless resource, location information of the second wireless resource, MCS of the D2D communication, NDI of the D2D communication, and TPC information of the D2D communication. at least one of them.

16. The resource configuration method for terminal-to-terminal communication according to claim 14, wherein the configuration information further includes: a public identity identifier; the public identity identifier is used by the base station to mask the first D2D scheduling information;

When scheduling the first D2D subframe and the second D2D subframe, obtaining the first D2D scheduling information indicated by the base station through the first DCI in the PDCCH according to the configuration information includes:

When scheduling the first D2D subframe and the second D2D subframe, obtain the masked first D2D scheduling information from the PDCCH according to the public identity identifier; the public identity identifier is used for The base station is used to mask the first D2D scheduling information.

17. The resource configuration method for end-to-end communication according to any one of claims 14 to 16, characterized in that,

The first D2D scheduling information includes: a first transmitting sub-identity and a second transmitting sub-identity;

The performing D2D communication with the first terminal on the first wireless resource or the second wireless resource according to the first D2D scheduling information includes: If the terminal sub-identity is the same as the first transmitting sub-identity, then transmit data to the first terminal through the D2D communication link on the first wireless resource, and on the second wireless resource receiving data from the first terminal through the D2D communication link;

If the terminal sub-identity is the same as the second transmitting sub-identity, then the data from the first terminal is received through the D2D communication link on the first wireless resource, and the data from the first terminal is received on the second wireless resource. Transmit data to the first terminal through the D2D communication link on the resource.

18. The resource configuration method for end-to-end communication according to any one of claims 14 to 16, characterized in that,

The first D2D scheduling information includes: a first transmitting and receiving indication, a second transmitting and receiving indication, and a first transmitting and receiving sub-identity;

The first transmitting and receiving instruction is a receiving instruction, and the second transmitting and receiving instruction is a transmitting instruction; or the first transmitting and receiving instruction is the transmitting instruction, and the second transmitting and receiving instruction is the receiving instruction.

19. The resource configuration method for end-to-end communication according to any one of claims 14 to 16, characterized in that, further comprising:

Receive the first transmitting and receiving instruction, the second transmitting and receiving instruction, and the first transmitting and receiving sub-identity from the base station;

20. The resource allocation method for end-to-end communication according to claim 18 or 19, characterized in that:

The performing D2D communication with the first terminal on the first wireless resource or the second wireless resource according to the first D2D scheduling information includes:

If the first transmitting and receiving instruction is the transmitting instruction, the second transmitting and receiving instruction is the receiving instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity identifier, then in the On the first wireless resource according to the first D2D scheduling information Transmit data to the first terminal through the D2D communication link, and receive data from the first terminal through the D2D communication link on the second wireless resource according to the first D2D scheduling information;

If the first transmitting and receiving instruction is the receiving instruction, the second transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity identifier, then in the On the first wireless resource, data from the first terminal is received through the D2D communication link according to the first D2D scheduling information, and on the second wireless resource, data is received through the D2D communication link according to the first D2D scheduling information. The communication link transmits data to the first terminal.

21. The resource configuration method for end-to-end communication according to any one of claims 14 to 16, characterized in that, further comprising:

When scheduling the first D2D subframe and the second D2D subframe, obtain the second D2D scheduling information indicated by the base station through the second DCI in the PDCCH according to the configuration information, and the second D2D The scheduling information is the third wireless resource allocated by the base station to the second terminal and the third terminal when scheduling the first D2D subframe and the third wireless resource allocated to the second terminal and the third terminal when scheduling the second D2D subframe. generated by the fourth wireless resource allocated by the third terminal, and the D2D communication link exists between the third terminal and the second terminal;

Perform the D2D communication with the third terminal on the third wireless resource or the fourth wireless resource according to the second D2D scheduling information;

Wherein, the second D2D scheduling information includes: location information of the third wireless resource, location information of the fourth wireless resource, MCS of the D2D communication, NDI of the D2D communication and NDI of the D2D communication. Transmit at least one item of TPC information.

22. The resource configuration method for terminal-to-terminal communication according to claim 21, characterized in that:

When scheduling the first D2D subframe and the second D2D subframe, obtaining the second D2D scheduling information indicated by the base station through the second DCI in the PDCCH according to the configuration information includes:

When scheduling the first D2D subframe and the second D2D subframe, according to the public The common identity identifier obtains the masked second D2D scheduling information from the PDCCH; wherein, the base station uses the common identity identifier to mask the second D2D scheduling information.

23. The resource allocation method for end-to-end communication according to claim 21 or 22, characterized in that:

The second D2D scheduling information includes: a third transmitting and receiving instruction, a fourth transmitting and receiving instruction, and a second transmitting and receiving sub-identity;

The third transmitting and receiving instruction is a receiving instruction, and the fourth transmitting and receiving instruction is a transmitting instruction; or the third transmitting and receiving instruction is the transmitting instruction, and the fourth transmitting and receiving instruction is the receiving instruction.

24. The resource configuration method for end-to-end communication according to claim 21 or 22, characterized in that, further comprising:

Receive the third transmitting and receiving instruction, the fourth transmitting and receiving instruction, and the second transmitting and receiving sub-identity from the base station;

25. The resource configuration method for terminal-to-terminal communication according to claim 23 or 24, characterized in that: the third wireless resource or the fourth wireless resource according to the second D2D scheduling information is configured with The third terminal performs the D2D communication, including:

If the third transmitting and receiving instruction is the transmitting instruction, the fourth transmitting and receiving instruction is the receiving instruction, and the terminal sub-identity is the same as the second transmitting and receiving sub-identity, then in the On the third wireless resource, data is transmitted to the third terminal through the D2D communication link according to the second D2D scheduling information, and on the fourth wireless resource, data is transmitted through the D2D communication according to the second D2D scheduling information. The link receives data from the third terminal;

If the third transmitting and receiving instruction is the receiving instruction, the fourth transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity. If the share identifiers are the same, then the data from the third terminal is received through the D2D communication link according to the second D2D scheduling information on the third wireless resource, and the data from the third terminal is received on the fourth wireless resource according to the second D2D scheduling information. The second D2D scheduling information transmits data to the third terminal through the D2D communication link.

26. A base station, characterized by: including:

A sending unit, configured to send the first configuration information to the first terminal, and send the second configuration information to the second terminal, where the first configuration information includes: device-to-device D2D subframe configuration information, and the first terminal sub-identity; The second configuration information includes: the D2D subframe configuration information and a second terminal sub-identity; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the wireless subframe;

An allocation unit configured to allocate a first wireless resource to the first terminal and the second terminal when scheduling the first D2D subframe, and to allocate a first wireless resource to the first terminal and the second terminal when scheduling the second D2D subframe. The second terminal allocates second wireless resources;

The generating unit is configured to generate the first D2D scheduling information according to the first wireless resource allocated by the allocation unit and the second wireless resource allocated by the allocation unit; The sending unit is also configured to generate the first D2D scheduling information through physical The first downlink control information DCI in the downlink control channel PDCCH indicates the first D2D scheduling information generated by the generating unit to the first terminal and the second terminal, so that the first terminal can The first configuration information obtains the first D2D scheduling information from the PDCCH, so that the second terminal obtains the first D2D scheduling information from the PDCCH according to the second configuration information, thereby causing the first The terminal and the second terminal perform D2D communication on the first wireless resource or the second wireless resource according to the first D2D scheduling information.

27. The base station according to claim 26, characterized in that,

28. The base station according to claim 26, wherein the first configuration information further includes: a public identity; and the second configuration information further includes: the public identity. identity;

The base station also includes:

A masking unit configured to use the masking unit before the sending unit indicates the first D2D scheduling information to the first terminal and the second terminal through the first downlink control information DCI in the physical downlink control channel PDCCH. The public identity identifier is masked with the D2D scheduling information;

The sending unit is further configured to send the first D2D scheduling information masked by the masking unit to the first terminal and the second terminal through the first DCI in the PDCCH, to The first terminal and the second terminal are caused to obtain the first D2D scheduling information from the PDCCH according to the public identity.

29. The base station according to any one of claims 26-28, characterized in that the first D2D scheduling information further includes: a first transmitting sub-identity and a second transmitting sub-identity;

30. The base station according to any one of claims 26 to 28, characterized in that the first D2D scheduling information further includes: a first transmitting and receiving instruction, a second transmitting and receiving instruction, and a first transmitting and receiving sub-identity. ;

3 1. The base station according to any one of claims 26-28, characterized in that: The sending unit is further configured to send a first transmitting and receiving instruction, a second transmitting and receiving instruction, and a first transmitting and receiving sub-identity to the first terminal and the second terminal, so that the first terminal and the When the second terminal performs the D2D communication on the first wireless resource, the second terminal transmits or receives the data according to the first D2D scheduling information and the first transmitting and receiving sub-identity, so that the first terminal When performing the D2D communication with the second terminal on the second wireless resource, the data is transmitted or received according to the first D2D scheduling information and the first transmitting and receiving sub-identity.

32. The base station according to claim 30 or 31, characterized in that, the first transmission and reception instruction is a reception instruction, and the second transmission and reception instruction is a transmission instruction; or, the first transmission and reception instruction is The transmitting instruction, the second transmitting and receiving instruction is the receiving instruction;

33. The base station according to any one of claims 26-28, characterized in that the sending unit is also used to send third configuration information to a third terminal, the third configuration information includes: the D2D Subframe configuration information, third terminal sub-identity;

The allocation unit is further configured to allocate a third wireless resource to the second terminal and the third terminal when scheduling the first D2D subframe, and to allocate a third radio resource to the third terminal when scheduling the second D2D subframe. The second terminal and the third terminal allocate fourth wireless resources;

The generating unit is further configured to generate second D2D scheduling information according to the third wireless resource allocated by the allocation unit and the fourth wireless resource allocated by the allocation unit; The sending unit is also configured to indicate the second D2D scheduling information generated by the generating unit to the second terminal and the third terminal through the second DCI in the PDCCH, so that the third The second terminal obtains the second D2D scheduling information from the PDCCH according to the second configuration information, so that the third terminal obtains the second D2D scheduling information from the PDCCH according to the third configuration information, thereby enabling the The second terminal and the third terminal perform the D2D communication on the third wireless resource or the fourth wireless resource according to the second D2D scheduling information.

34. The base station according to claim 33, wherein the second D2D scheduling information includes: location information of the third wireless resource, location information of the fourth wireless resource, and MCS of the D2D communication. , at least one of the NDI of the D2D communication and the transmission TPC information of the D2D communication.

35. The base station according to claim 33, characterized in that the third configuration information further includes: a public identity identifier;

The masking unit is further configured to use the public identity before the sending unit indicates the second D2D scheduling information to the second terminal and the third terminal through the second DCI in the PDCCH. Mask the second D2D scheduling information;

The sending unit is further configured to send the second D2D scheduling information masked by the masking unit to the second terminal and the third terminal through the second DCI in the PDCCH.

36. The base station according to any one of claims 33 to 35, characterized in that the second D2D scheduling information further includes: a third transmission and reception instruction, a fourth transmission and reception instruction, and a second transmission and reception sub-identity. ;

Wherein, the third transmitting and receiving instruction is used to instruct the second terminal and the third terminal to transmit or transmit according to the second transmitting and receiving sub-identity when performing the D2D communication on the third wireless resource. receive said data;

The fourth transmitting and receiving instruction is used to instruct the second terminal and the third terminal to transmit or receive the data according to the second transmitting and receiving sub-identity when performing the D2D communication on the fourth wireless resource. Describe the data.

37. The base station according to any one of claims 33-35, characterized in that: The sending unit is further configured to send a third transmitting and receiving instruction, a fourth transmitting and receiving instruction, and a second transmitting and receiving sub-identity to the second terminal and the third terminal, so that the second terminal and the When the third terminal performs the D2D communication on the third wireless resource, the third terminal transmits or receives the data according to the second D2D scheduling information and the second transmitting and receiving sub-identity, so that the second terminal When performing the D2D communication with the third terminal on the fourth wireless resource, the data is transmitted or received according to the second D2D scheduling information and the second transmitting and receiving sub-identity.

38. The base station according to claim 36 or 37, characterized in that, the third transmitting and receiving instruction is a receiving instruction, and the fourth transmitting and receiving instruction is a transmitting instruction; or, the third transmitting and receiving instruction is the The transmitting instruction, the fourth transmitting and receiving instruction is the receiving instruction;

Wherein, if the third transmitting and receiving instruction is a transmitting instruction, the fourth transmitting and receiving instruction is a receiving instruction, and the second terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity identifier, then the third transmitting and receiving instruction is a receiving instruction. The second terminal transmits data to the third terminal on the third wireless resource, and receives data from the third terminal on the fourth wireless resource; if the third transmission and reception instruction is the reception instruction , the fourth transmitting and receiving instruction is the transmitting instruction, and the second terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity identifier, then the second terminal receives on the third wireless resource The data from the third terminal is transmitted to the third terminal on the fourth wireless resource.

39. A terminal, characterized in that it includes:

The acquisition unit is configured to receive configuration information sent by the base station, where the configuration information includes: D2D subframe configuration information and terminal subidentity identification; the D2D subframe configuration information is used to indicate the first D2D subframe and the first D2D subframe in the wireless subframe. the second D2D subframe; when scheduling the first D2D subframe and the second D2D subframe, obtain the first D2D scheduling information indicated by the base station through the first DCI in the PDCCH according to the configuration information, so The first D2D scheduling information is the first radio resource allocated by the base station to the terminal and the first terminal when scheduling the first D2D subframe and the first radio resource allocated to the terminal and the first terminal when scheduling the second D2D subframe. generated by the second wireless resource allocated by the first terminal, the first terminal and the terminal There is a D2D communication link between terminals;

A communication unit, configured to perform D2D communication with the first terminal on the first wireless resource or the second wireless resource according to the first D2D scheduling information acquired by the acquisition unit.

40. The terminal according to claim 39, characterized in that,

The first D2D scheduling information includes: location information of the first wireless resource, location information of the second wireless resource, MCS of the D2D communication, NDI of the D2D communication, and TPC information of the D2D communication. At least one item.

41. The terminal according to claim 39, characterized in that the configuration information further includes: a public identity identifier;

The acquisition unit is further configured to acquire the masked first D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe, The public identity is used by the base station to mask the first D2D scheduling information.

42. The terminal according to any one of claims 39 to 41, characterized in that the first D2D scheduling information includes: a first transmitting sub-identity and a second transmitting sub-identity;

The communication unit includes:

a first communication module configured to transmit data to the first terminal through the D2D communication link on the first wireless resource if the terminal sub-identity is the same as the first transmitting sub-identity, Receive data from the first terminal through the D2D communication link on the second wireless resource;

A second communication module configured to receive data from the first terminal through the D2D communication link on the first wireless resource if the terminal sub-identity is the same as the second transmitting sub-identity. , transmit data to the first terminal through the D2D communication link on the second wireless resource.

43. The terminal according to any one of claims 39 to 41, characterized in that the first D2D scheduling information includes: a first transmission and reception instruction, a second transmission and reception instruction, and a first transmission and reception sub-identity; The first transmitting and receiving instruction is a receiving instruction, and the second transmitting and receiving instruction is a transmitting instruction; or the first transmitting and receiving instruction is the transmitting instruction, and the second transmitting and receiving instruction is the receiving instruction.

44. The terminal according to any one of claims 39 to 41, characterized in that the acquisition unit is further configured to receive a first transmission and reception instruction, a second transmission and reception instruction, a first transmission and reception instruction from the base station. receive subidentity;

45. The terminal according to claim 43 or 44, characterized in that,

The communication unit includes:

The third communication module is configured to: if the first transmitting and receiving instruction is the transmitting instruction, the second transmitting and receiving instruction is the receiving instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity If the identifiers are the same, data is transmitted to the first terminal through the D2D communication link on the first wireless resource according to the first D2D scheduling information, and data is transmitted to the first terminal on the second wireless resource according to the first D2D scheduling information. Scheduling information receives data from the first terminal through the D2D communication link;

The fourth communication module is configured to: if the first transmitting and receiving instruction is the receiving instruction, the second transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-identity If the identifiers are the same, data from the first terminal is received through the D2D communication link on the first wireless resource according to the first D2D scheduling information, and data from the first terminal is received on the second wireless resource according to the first D2D scheduling information. D2D scheduling information transmits data to the first terminal through the D2D communication link.

46. The terminal according to any one of claims 39 to 41, characterized in that the obtaining unit is further configured to: when scheduling the first D2D subframe and the second D2D subframe, according to the The configuration information obtains the second D2D scheduling information indicated by the base station through the second DCI in the PDCCH, and the second D2D scheduling information is the terminal and the base station when scheduling the first D2D subframe. The third radio resource allocated by the third terminal and the third radio resource allocated to the terminal and the third terminal when scheduling the second D2D subframe. Generated by four wireless resources, the D2D communication link exists between the third terminal and the terminal;

The communication unit is further configured to perform the D2D communication with the third terminal on the third wireless resource or the fourth wireless resource according to the second D2D scheduling information generated by the acquisition unit;

47. The terminal according to claim 46, characterized in that,

The acquisition unit is further configured to acquire the masked second D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe; The public identity is used by the base station to mask the first D2D scheduling information.

48. The terminal according to claim 46 or 47, characterized in that,

49. The terminal according to claim 46 or 47, wherein the acquisition unit is further configured to receive a third transmission and reception instruction, a fourth transmission and reception instruction, and a second transmission and reception sub-identity from the base station. ;

50. The terminal according to claim 46 or 47, characterized in that the communication unit further includes:

The fifth communication module is configured to: if the third transmission and reception instruction is the transmission instruction, the fourth transmission and reception instruction is the reception instruction, and the terminal sub-identity identifier is the same as the reception instruction. If the second transmitting and receiving sub-identities are the same, data is transmitted to the third terminal through the D2D communication link according to the second D2D scheduling information on the third wireless resource, and on the fourth wireless resource receiving data from the third terminal through the D2D communication link according to the second D2D scheduling information;

The sixth communication module is configured to: if the third transmitting and receiving instruction is the receiving instruction, the fourth transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the second transmitting and receiving sub-identity If the identifiers are the same, then the data from the third terminal is received through the D2D communication link according to the second D2D scheduling information on the third wireless resource, and the data from the third terminal is received on the fourth wireless resource according to the second D2D scheduling information. D2D scheduling information transmits data to the third terminal through the D2D communication link.

51. A base station, characterized by including:

A transmitter, configured to send first configuration information to the first terminal, and send second configuration information to the second terminal, where the first configuration information includes: device-to-device D2D subframe configuration information, first terminal sub-identity identification; The second configuration information includes: the D2D subframe configuration information and a second terminal sub-identity; the D2D subframe configuration information is used to indicate the first D2D subframe and the second D2D subframe in the wireless subframe;

A processor, configured to allocate a first wireless resource to the first terminal and the second terminal when scheduling the first D2D subframe, and to allocate a first wireless resource to the first terminal and the second terminal when scheduling the second D2D subframe. The second terminal allocates a second wireless resource; generates first D2D scheduling information according to the allocated first wireless resource and the allocated second wireless resource;

The transmitter is further configured to indicate the first D2D scheduling information generated by the processor to the first terminal and the second terminal through the first downlink control information DCI in the physical downlink control channel PDCCH, So that the first terminal obtains the first D2D scheduling information from the PDCCH according to the first configuration information, so that the second terminal obtains the first D2D scheduling information from the PDCCH according to the second configuration information. D2D scheduling information, thereby enabling the first terminal and the second terminal to perform D2D communication on the first wireless resource or the second wireless resource according to the first D2D scheduling information.

52. The base station according to claim 51, characterized in that,

The first D2D scheduling information includes: location information of the first wireless resource, At least one of the location information of the second wireless resource, the modulation and coding scheme MCS of the D2D communication, the new data indication NDI of the D2D communication, and the transmit power control TPC information of the D2D communication.

53. The base station according to claim 51, wherein the first configuration information further includes: a public identity identifier; the configuration information further includes: the public identity identifier;

The processor is further configured to, before the transmitter indicates the first D2D scheduling information to the first terminal and the second terminal through the first downlink control information DCI in the physical downlink control channel PDCCH, Using the public identity identifier to mask the first D2D scheduling information;

The transmitter is further configured to send the masked first D2D scheduling information to the first terminal and the second terminal through the first DCI in the PDCCH, so that the first The terminal and the second terminal obtain the first D2D scheduling information from the PDCCH according to the public identity identifier.

54. The base station according to any one of claims 51 to 53, characterized in that the first D2D scheduling information further includes: a first transmitting sub-identity and a second transmitting sub-identity;

55. The base station according to any one of claims 51 to 53, characterized in that the first D2D scheduling information further includes: a first transmitting and receiving instruction, a second transmitting and receiving instruction, and a first transmitting and receiving sub-identity. ;

Wherein, the first transmitting and receiving indication is used to instruct the first terminal and the second terminal to transmit or transmit according to the first transmitting and receiving sub-identity when performing the D2D communication on the first wireless resource. receive said data; The second transmitting and receiving instruction is used to instruct the first terminal and the second terminal to transmit or receive the data according to the first transmitting and receiving sub-identity when performing the D2D communication on the second wireless resource. Describe the data.

56. The base station according to any one of claims 51 to 53, characterized in that the transmitter is further configured to send a first transmission and reception instruction, a second transmission and reception instruction, and a first transmission and reception sub-identity to The first terminal and the second terminal, so that when the first terminal and the second terminal perform the D2D communication on the first wireless resource, according to the first D2D scheduling information and the The first transmitting and receiving sub-identity transmits or receives the data, so that when the first terminal and the second terminal perform the D2D communication on the second wireless resource, according to the first D2D schedule information and the first transmitting and receiving sub-identity to transmit or receive the data.

57. The base station according to claim 55 or 56, characterized in that,

58. The base station according to any one of claims 51 to 53, characterized in that the transmitter is also used to send third configuration information to a third terminal, the third configuration information includes: the D2D Subframe configuration information, third terminal sub-identity;

The processor is further configured to allocate a third wireless resource to the second terminal and the third terminal when scheduling the first D2D subframe, and when scheduling the second D2D subframe Allocate a fourth wireless resource to the second terminal and the third terminal; generate second D2D scheduling information according to the allocated third wireless resource and the allocated fourth wireless resource;

The transmitter is further configured to indicate the second D2D scheduling information to the second terminal and the third terminal through the second DCI in the PDCCH, so that the second terminal can schedule according to the second The configuration information acquires the second D2D scheduling information from the PDCCH, so that the third terminal acquires the second D2D scheduling information from the PDCCH according to the third configuration information, thereby enabling the second terminal and the The third terminal performs the D2D communication on the third wireless resource or the fourth wireless resource according to the second D2D scheduling information.

59. The base station according to claim 58, characterized in that,

60. The base station according to claim 58, wherein the third configuration information further includes: a public identity identifier;

The processor is further configured to use the public identity before the transmitter indicates the second D2D scheduling information to the second terminal and the third terminal through the second DCI in the PDCCH. Identify and mask the second D2D scheduling information;

The transmitter is further configured to send the second D2D scheduling information masked by the processor to the second terminal and the third terminal through the second DCI in the PDCCH.

61. The base station according to any one of claims 58 to 60, characterized in that the second D2D scheduling information further includes: a third transmission and reception instruction, a fourth transmission and reception instruction, and a second transmission and reception sub-identity. ;

The fourth transmitting and receiving instruction is used to instruct the second terminal and the third terminal When performing the D2D communication on the fourth wireless resource, the data is transmitted or received according to the second transmitting and receiving sub-identity.

62. The base station according to any one of claims 58 to 60, characterized in that the transmitter is further configured to send a third transmission and reception instruction, a fourth transmission and reception instruction, and a second transmission and reception sub-identity to The second terminal and the third terminal, so that when the second terminal and the third terminal perform the D2D communication on the third wireless resource, according to the second D2D scheduling information and the The second transmitting and receiving sub-identity transmits or receives the data, so that when the second terminal and the third terminal perform the D2D communication on the fourth wireless resource, according to the second D2D scheduling information and the second transmitting and receiving sub-identity to transmit or receive the data.

63. The base station according to claim 61 or 62, characterized in that,

64. A terminal, characterized in that it includes:

A receiver, configured to receive configuration information sent by the base station, where the configuration information includes: D2D subframe configuration information and terminal subidentity identification; the D2D subframe configuration information is used to indicate the first D2D subframe and the first D2D subframe in the wireless subframe. The second D2D subframe;

A processor configured to obtain, according to the configuration information received by the receiver, the configuration information of the base station in the PDCCH when scheduling the first D2D subframe and the second D2D subframe. The first D2D scheduling information indicated by the first DCI. The first D2D scheduling information is the first radio resource allocated by the base station to the terminal and the first terminal when scheduling the first D2D subframe and the scheduling information. The second D2D subframe is generated for the second wireless resource allocated to the terminal and the first terminal, and a D2D communication link exists between the first terminal and the terminal; according to the first D2D scheduling information Perform D2D communication with the first terminal on the first wireless resource or the second wireless resource.

65. The terminal according to claim 64, characterized in that,

66. The terminal according to claim 64, characterized in that the configuration information further includes: a public identity identifier;

The processor is further configured to obtain the masked first D2D scheduling information from the PDCCH according to the public identity identifier when scheduling the first D2D subframe and the second D2D subframe; The public identity is used by the base station to mask the first D2D scheduling information.

67. The terminal according to any one of claims 64 to 66, characterized in that the first D2D scheduling information includes: a first transmitting sub-identity identifier and a second transmitting sub-identity identifier;

The terminal also includes:

A transmitter configured to transmit data to the first terminal through the D2D communication link on the first wireless resource if the terminal sub-identity is the same as the first transmitting sub-identity;

The receiver is further configured to, if the terminal sub-identity is the same as the first transmitting sub-identity, receive a message from the first terminal through the D2D communication link on the second wireless resource. data;

The receiver is further configured to, if the terminal sub-identity is the same as the second transmitting sub-identity, receive from the first terminal through the D2D communication link on the first wireless resource. data; The transmitter is also configured to transmit data to the first terminal through the D2D communication link on the second wireless resource if the terminal sub-identity is the same as the second transmitting sub-identity. .

68. The terminal according to any one of claims 64 to 66, characterized in that the first D2D scheduling information includes: a first transmission and reception instruction, a second transmission and reception instruction, and a first transmission and reception sub-identity;

69. The terminal according to any one of claims 64-66, further comprising:

The receiver is also configured to receive a first transmitting and receiving instruction, a second transmitting and receiving instruction, and a first transmitting and receiving sub-identity from the base station;

70. The terminal according to claim 68 or 69, characterized in that,

The transmitter is further configured to: if the first transmitting and receiving instruction is the transmitting instruction, the second transmitting and receiving instruction is the receiving instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-id. If the identity identifiers are the same, then transmit data to the first terminal through the D2D communication link according to the first D2D scheduling information on the first wireless resource;

The receiver is further configured to: if the first transmitting and receiving instruction is the transmitting instruction, the second transmitting and receiving instruction is the receiving instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-id. If the identity identifiers are the same, receive data from the first terminal through the D2D communication link according to the first D2D scheduling information on the second wireless resource;

The receiver is further configured to: if the first transmitting and receiving instruction is the receiving instruction, the second transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the receiving instruction. If the first transmitting and receiving sub-identities are the same, then the data from the first terminal is received on the first wireless resource through the D2D communication link according to the first D2D scheduling information;

The transmitter is further configured to: if the first transmitting and receiving instruction is the receiving instruction, the second transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the first transmitting and receiving sub-id. If the identity identifiers are the same, data is transmitted to the first terminal through the D2D communication link on the second wireless resource according to the first D2D scheduling information.

71. The terminal according to any one of claims 64 to 66, characterized in that, the processor is further configured to: when scheduling the first D2D subframe and the second D2D subframe, according to the The configuration information obtains the second D2D scheduling information indicated by the base station through the second DCI in the PDCCH, and the second D2D scheduling information is the terminal and the base station when scheduling the first D2D subframe. The third radio resource allocated by the third terminal and the fourth radio resource allocated by the terminal and the third terminal are generated when the second D2D subframe is scheduled, and there is between the third terminal and the terminal The D2D communication link; performing the D2D communication with the third terminal on the third wireless resource or the fourth wireless resource according to the second D2D scheduling information;

72. The terminal according to claim 71, wherein the processor is further configured to: when scheduling the first D2D subframe and the second D2D subframe, select the The PDCCH acquires the masked second D2D scheduling information; the public identity identifier is used by the base station to mask the first D2D scheduling information.

73. The terminal according to claim 71 or 72, characterized in that,

The third transmitting and receiving instruction is a receiving instruction, and the fourth transmitting and receiving instruction is a transmitting instruction; or the third transmitting and receiving instruction is the transmitting instruction, and the fourth transmitting and receiving instruction is The reception instruction is the reception instruction.

74. The terminal according to claim 71 or 72, wherein the receiver is further configured to receive a third transmission and reception instruction, a fourth transmission and reception instruction, and a second transmission and reception sub-identity from the base station. ;

75. The terminal according to claim 73 or 74, wherein the transmitter is further configured to: if the third transmitting and receiving instruction is the transmitting instruction, and the fourth transmitting and receiving instruction is the receiving indicates, and the terminal sub-identity is the same as the second transmitting and receiving sub-identity, then data is transmitted to the third wireless resource through the D2D communication link according to the second D2D scheduling information. third terminal;

The receiver is further configured to: if the third transmitting and receiving instruction is the transmitting instruction, the fourth transmitting and receiving instruction is the receiving instruction, and the terminal sub-identity identifier is the same as the second transmitting and receiving sub-id. If the identity identifiers are the same, receive data from the third terminal through the D2D communication link according to the second D2D scheduling information on the fourth wireless resource;

The receiver is further configured to: if the third transmitting and receiving instruction is the receiving instruction, the fourth transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the second transmitting and receiving sub-id. If the identity identifiers are the same, receive data from the third terminal through the D2D communication link according to the second D2D scheduling information on the third wireless resource;

The transmitter is further configured to: if the third transmitting and receiving instruction is the receiving instruction, the fourth transmitting and receiving instruction is the transmitting instruction, and the terminal sub-identity identifier is the same as the second transmitting and receiving sub-id. If the identity identifiers are the same, data is transmitted to the third terminal through the D2D communication link on the fourth wireless resource according to the second D2D scheduling information.