CN104113913B

CN104113913B - Data transmission method and device

Info

Publication number: CN104113913B
Application number: CN201310133187.8A
Authority: CN
Inventors: 杨瑾; 梁枫; 袁明; 吴栓栓; 袁弋非
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-04-17
Filing date: 2013-04-17
Publication date: 2020-01-31
Anticipated expiration: 2033-04-17
Also published as: WO2014169726A1; CN104113913A

Abstract

The invention discloses a data transmission method and a device, wherein the method comprises the steps that D2D UE obtains configuration indication information, wherein the configuration indication information is used for indicating data processing modes of the D2D UE at th time slot and second time slot of a D2D subframe, and D2D UE transmits or receives data at th time slot and/or at the second time slot according to the configuration indication information, so that the D2D UE can obtain the configuration indication information indicating the data processing modes of the D2D UE at th time slot and second time slot of a D2D subframe, and accordingly transmits and/or receives data according to the configuration indication information, and the D2D UE transmits the D2D data in a more flexible resource mode by effectively dividing D2D communication resources, so that the resource utilization rate is improved, and efficient data transmission is realized.

Description

Data transmission method and device

Technical Field

The invention relates to the field of communication, in particular to a data transmission method and device.

Background

In a cellular system, when there is a service to be transmitted between two User equipments (User equipments, abbreviated as UEs), service data from a User Equipment 1 (UE 1) to a User Equipment 2 (UE 2) is first transmitted to a base station 1 through an air interface (abbreviated as air interface), the base station 1 transmits the service data to a base station 2 through a core network, the base station 2 transmits the service data to a UE2 through the air interface, and similar processing flows are adopted for the service data transmission from the UE2 to the UE 1. when the UE1 and the UE2 are located in the same cells, as shown in fig. 1, although the base station 1 and the base station 2 are the same sites, the data transmission for times still consumes two radio spectrum resources.

It can be seen that if UE1 and UE2 are located in a cell and are located close to each other, the above cellular communication method is obviously not an optimal communication method, in fact, with the diversification of mobile communication services, such as social network, electronic payment, etc., increasingly applied in wireless communication systems, the service transmission demand between close range users is increasing, therefore, the Device-to-Device (D2D) communication mode is increasingly concerned with , as shown in fig. 2, D2D communication means that the service data is directly transmitted to the target user equipment through air interface without passing through a base station, which has a characteristic that is obviously different from the conventional cellular system communication mode, for users of close range communication, D2D transmission not only saves wireless spectrum resources, but also reduces data transmission pressure of the core network, D2D communication based on cellular network is a novel technology that directly performs communication between a plurality of terminals supporting D2D functions under the control of the system, and thus the cellular communication efficiency is greatly reduced, and the cellular communication cost is reduced.

Two UEs performing D2D communication are referred to as a D2D UE pair (D2D UE pair), each UE is referred to as a D2D peer UE. relative to another UEs between the cellular communication and the D2D communication modes, different resources need to be divided for the UEs, and the UEs perform data transmission on resources (including frequency domain and/or time domain resources) used for D2D communication, and communicate with the D2D peer UEs.

In the related art, no effective solution has been proposed yet for how to simply and effectively implement the configuration of D2D UE resources on available D2D communication resources.

Disclosure of Invention

The invention provides an data transmission method and device, which at least solve the problem of how to simply and effectively realize the configuration of D2D UE resources on available D2D communication resources in the related art.

According to aspects of the invention, a data transmission method is provided, which includes that D2D UE obtains configuration indication information, wherein the configuration indication information is used for indicating data processing modes of the D2D UE at th time slot and a second time slot of a D2D subframe, and the D2D UE transmits or receives data at the th time slot and/or transmits or receives data at the second time slot according to the configuration indication information.

Preferably, the D2D UE acquires the configuration indication information by at least of physical layer control signaling, higher layer signaling and system predefinition.

Preferably, the data processing manner of the D2D UE in the th and second slots of the D2D subframe includes . the D2D UE transmits signals in the th slot and receives signals in the second slot, the D2DUE receives signals in the th slot and transmits signals in the second slot, the D2D UE transmits signals to different nodes in the th and second slots, respectively, and the D2D UE receives signals from different nodes in the th and second slots, respectively.

Preferably, the nodes comprise network side nodes and/or D2D communication counterpart UEs of the D2D UEs, and the signals are used for carrying D2D communication data or cellular communication data.

Preferably, the D2D UE acquiring the configuration indication information through physical layer control signaling includes: the D2DUE receives a physical layer control signaling carrying the configuration indication information from a network side node and acquires the configuration indication information; or, the D2D UE receives a physical layer control signaling carrying the configuration indication information from its D2D communication peer UE, and acquires the configuration indication information.

Preferably, the physical layer control signaling includes a Downlink Control Information (DCI) or a dedicated D2D communication control message.

The method further comprises the steps that when the D2 UE obtains the configuration indication information through a physical layer control signaling, the network side node or the D2 communication opposite terminal UE carries the configuration indication information through a 1bit indication information bit in the physical layer control signaling, when the 1bit indication information bit is 1, the D2 UE transmits data in the second time slot, the data is received in the second time slot, when the 1bit indication information bit is 0, the D2DUE receives data in the second time slot, the data is transmitted in the second time slot, when the 1bit indication information bit is 0, the D2 UE transmits data in the 0 time slot, the data is received in the second time slot, when the 1bit indication information bit is 0, the D2 UE transmits data in the second time slot, when the D2 UE transmits data in the second time slot, the D2 information signal is 1bit indication information bit, when the D2 UE transmits data in the second time slot, when the D2 UE receives the data signal, when the D2 information bit indication information bit is 1, the data is 1 information signal, when the D2 information bit indication information bit is 1, the UE transmits data to the second time slot, the data signal, when the D information signal is 1 time slot, the UE is 1 time slot, the data is 1 time slot, the data is received, the data is 1 time slot, the UE is the data is received, the data is received in the second time slot is the UE, the UE2 information signal is the data is the second time slot, the data is received, the data is received, the data is received, when the data is received, the data is received in the data is received, the data is received, when the data is received, when the data is the.

The indication data is received when the indication data is received, the data, the indication data is received, the indication data is received, the data, the indication data, the data is received, the 2, the data, the indication data is received, the data, the indication data, the data is received, the data, the indication, the data is received, the data, the indication, the data, the indication is received when the indication is received, the indication data, the data is received, the data, the indication, the data, the indication is received, the data, the indication, the data, the second time slot is received, the data, the indication, the data, the second information, the data, the UE2, the data, the UE2, the UE2, the UE2, the UE2, the UE is received when the UE, the UE2, the UE is 2, the UE2, the UE is 2, the UE is 2, the UE2, the UE2, the UE2, the UE, the.

Preferably, the D2D UE acquiring the configuration indication information through a higher layer signaling includes: the D2D UE receives a high-level signaling carrying the configuration indication information from a network side node and acquires the configuration indication information; or, the D2D UE receives a high-level signaling carrying the configuration indication information from its D2D communication peer UE, and acquires the configuration indication information.

Preferably, the higher layer signaling comprises of a D2D connection establishment request message, a D2D connection establishment request response message, and a D2D connection reconfiguration message.

Preferably, the D2D UE predefining, by the system, to acquire the configuration indication information includes: the system predefines the configuration indication information according to the Identification (ID) number size of D2D UE in D2D communication; alternatively, the system predefines the configuration indication information according to a master-slave relationship of the D2D UE in D2D communication; alternatively, the system predefines the configuration indication information according to an active/passive relationship of the D2D UE in D2D communication in the D2D communication.

Preferably, the system predefines the configuration indication information according to the ID number of the D2 UE in D2 communication, the system predefines the D2 UE in D2 communication to transmit data in the second time slot and receive data in the second time slot, the D2 UE with the smaller ID number receives data in the second time slot and transmit data in the second time slot, or the D2 UE with the smaller ID number transmits data in the 0 th time slot and receive data in the second time slot, the D2 UE with the larger ID number receives data in the 1 st time slot and transmit data in the second time slot, or the D2 UE with the larger ID number transmits data in the 2 nd time slot and receive data in the second time slot, the D2 UE with the smaller ID number transmits data in the 3 rd time slot and the second time slot to different nodes, or the D2 UE with the smaller ID number transmits data in the second time slot and receive data in the second time slot, the D2 UE receives data signals from the node and the node D2 UE respectively, the signal from the node and the node D2 UE respectively, the node and the signal respectively transmits data to the UE in the second time slot, the data signal from the node, the signal receiving signal is respectively, the signal from the node and the UE in the signal receiving node, the signal is respectively, the signal from the signal is transmitted in the second time slot, the signal is transmitted in the signal transmitted in the second time slot, the signal from the signal transmitting signal in the data signal transmitting time slot, the data signal in the signal receiving node, the.

Preferably, the ID includes a Cell Radio network temporary identity (C-RNTI) of the UE or a dedicated ID of the UE in D2D communication.

The system predefining the configuration indication information according to the master-slave relationship of the D2D UEs in D2D communication preferably includes the system predefining two D2D UEs in D2D communication, the master UE transmitting data in the first time slot and receiving data in the second time slot, the slave UE receiving data in the first time slot and transmitting data in the second time slot, or the slave UE transmitting data in the second time slot and receiving data in the second time slot, the master UE receiving data in the 1 time slot and transmitting data in the second time slot, or the master UE transmitting data in the second time slot and receiving data in the second time slot, the slave UE transmitting signals to different nodes in the time slot and the second time slot, respectively, or the slave UE transmitting data in the second time slot and receiving data in the second time slot and transmitting signals to different nodes, or the slave UE transmitting signals to different nodes, respectively, the master UE transmitting signals to the second and receiving signals from the master UE, the second and receiving signals in the second 367, the second , the second slave UE transmitting signals to the second 36863 and receiving signals or the second signal to the second slave UE, respectively, the second , the second 367, the second data receiving signal, the second data or the slave UE transmitting signal from the second signal to the different time slot and the master or the slave UE, the second signal receiving signal or the slave UE in the second signal receiving node , the second signal or the second signal transmitting signal in the second signal receiving time slot, the second signal receiving signal transmitting data or the second signal in the second signal receiving time slot, the second signal transmitting data or the second signal receiving time slot, the second signal transmitting signal receiving signal transmitting signal in the second signal receiving node 367 or the second signal transmitting signal receiving node 367 or the second signal receiving signal in the second signal transmitting data or the second signal in the second signal receiving time slot of the second signal transmitting signal from the second signal transmitting signal receiving node 367 or the second signal in the second signal receiving node 367 or the second signal transmitting data or the slave UE 367 or the second signal transmitting signal in the second signal receiving node 367 in the second signal receiving time slot of the second signal receiving node 3653 or the second signal receiving node 367 or the slave UE 367 or the second signal receiving time slot of the slave UE 367 or the slave UE in the second signal receiving node in the slave UE 367 or the second signal receiving time slot of the slave UE 367 or the second signal receiving time slot of the slave UE 367 or the second signal of the second signal receiving node in the.

The system predefines the configuration indication information according to the active/passive relation of the D2D UEs in D2D communication, the system predefines data transmission by the active UE on the time slot and data reception by the second UE in the second time slot, the passive UE performs data reception by the passive UE on the time slot and data transmission by the passive UE on the second time slot, or the passive UE performs data transmission by the passive UE on the second time slot and data reception by the active UE on the second time slot, the active UE performs data reception by the active UE on the 861 time slot and data transmission by the active UE on the second time slot, or the active UE performs data transmission by the active UE on the 862 time slot and data reception by the passive UE on the second time slot, the passive UE performs data transmission by the active UE on the second time slot and data reception by the passive UE on the second time slot, the active UE performs data transmission by the passive UE on the second time slot and data reception by the active UE 72 and the passive UE respectively on the second time slot, or the active UE and passive UE transmit the passive UE on the active UE and data reception by the passive UE respectively on the active UE and data reception by the passive UE, or the passive UE respectively on the active UE and data reception by the passive UE, the active UE, the passive UE on the second time slot and the active UE, the active UE 72 and the active UE respectively on the second time slot and the second time slot, the second time slot and the active UE respectively transmit the active UE, or the active UE, the active UE respectively on the active UE, the second time slot and the active UE transmit the second time slot and the active UE, the second time slot and the active UE transmit the second time slot and the active UE respectively on the second time slot and the active UE transmit the active UE, the second time slot and passive UE respectively, or the active UE transmit the active UE 72, the active UE respectively on the second time slot and the second time slot, or the active UE respectively on the active UE transmit the second time slot and the active UE, or the active UE transmit the active UE respectively on the active UE transmit the second time slot and data receive the second time slot of the active UE , or the active UE respectively the active UE, the active UE , the active UE respectively on the active UE, the active UE respectively the second time slot and passive UE, the active UE respectively on the active UE 367 time slot and the second time slot of the active UE, or the second time slot of the active UE , the second time slot of the active UE , the active UE respectively the active UE, the second time slot of.

Preferably, the D2D subframes include subframes configured by the network side for D2D communication or subframes contention obtained by the D2D UEs for D2D communication.

Preferably, the D2D sub-frame carries D2D communication data or the D2D sub-frame carries D2D communication data and cellular communication data.

Preferably, the D2D communication data includes D2D control data and/or D2D traffic data between the D2D UE and its D2D communication counterpart UE, and the cellular communication data includes cellular communication control data and/or cellular communication traffic data between the D2D UE and the network side.

Preferably, the Network side node includes at least of an Evolved NodeB (eNB), a cell Coordination Entity (MCE), a gateway (Gate Way, GW), a Mobility Management Equipment (MME), an Evolved Universal Terrestrial Radio Access Network (EUTRAN), and an Operation Administration and Maintenance manager (OAM).

According to another aspect of the present invention, a data transmission method is provided, where the method includes that a network side node sends a signaling carrying configuration indication information to a D2D UE, where the configuration indication information is used to indicate a data processing manner of the D2D UE in a th slot and a second slot of a D2D subframe.

Preferably, the data processing mode of the D2D UE in the th and second slots of the D2D subframe includes , wherein the D2D UE transmits signals in the th slot and receives signals in the second slot, the D2D UE receives signals in the th slot and transmits signals in the second slot, the D2D UE transmits signals to different nodes in the th and second slots, and the D2D UE receives signals from different nodes in the 86 th and second slots.

Preferably, the signaling comprises physical layer control signaling and/or higher layer signaling, wherein the physical layer control signaling comprises DCI or a dedicated D2D communication control message, and the higher layer signaling comprises of a D2D connection establishment request message, a D2D connection establishment request response message, and a D2D connection reconfiguration message.

The method comprises the steps that a network side node sends a physical layer control signaling carrying the configuration indication information to a D2 UE, the network side node carries the configuration indication information through a 1bit indication information bit in the physical layer control signaling, the D2 UE transmits data in a second time slot when the 1bit indication information bit is 1, the UE receives data in the second time slot, the UE transmits data in the second time slot, the D2 UE receives data in the second time slot when the 1bit indication information bit is 0, the UE transmits data in the second time slot, the D2 UE transmits data in the second time slot when the 1bit indication information bit is 1, the UE transmits data in the second time slot, the D2 UE receives data in the second time slot, the D2 UE transmits data in the second time slot, the D2 UE receives data in the second time slot, the D1 bit indication information bit is 1, the UE and the D2 information bit indication information bit is 1, the UE transmits data in the second time slot, the UE is the second time slot, the data when the UE transmits the data when the D2 information bit indication information bit is 1, the UE transmits data to the second time slot, the UE, the data to the UE, the second time slot is the time slot is 1, the UE, the time slot is the time slot, the time slot is the time slot, the time slot is the time slot when the time slot, the time slot is the data, the time slot is the time slot when the time slot is the time slot when the time slot is the time slot when the time slot is the time slot when the time indicated information signal indicated by the time indicated by the D2, the UE, the D2, the data indicated by the UE, the time indicated by the UE, the time indicated by the data indicated by the time indicated by the UE, the D2, the UE, the time indicated by the UE, the time indicated by the D2, the UE, the time indicated by the UE, the time indicated by the UE, the time point, the UE, the time point of the time point.

The indication time slot of the UE2 is the indication time slot of the UE2, the UE2 is the indication information data, the UE2 is the indication time slot of the UE2, the indication information data, the indication time slot of the UE2 is the second information data, the indication time slot of the UE2, the UE2 is the indication time slot of the UE2, the indication information data, the UE2, the indication time slot of the UE2 is the indication time slot of the UE2, the indication information, the UE2 is the data, the indication time slot is the UE2, the data, the indication time slot is the UE2, the indication time slot is the data, the indication time slot, the UE2, the indication time slot is the data, the indication information data, the indication time slot is the UE2, the indication time slot, the UE2 information, the indication time slot is the data, the indication information data, the indication time slot is the data, the indication information, the indication time slot, the UE2, the indication information, the UE2, the indication time slot is the UE2, the data, the indication time slot, the data, the UE2, the indication information, the indication time slot, the data, the UE2, the data, the indication information, the UE2, the data, the indication time slot, the data, the UE2, the indication time slot, the data, the indication time slot, the data, the indication time slot, the indication information, the data, the indication information, the data, the indication information, the indication time slot, the indication information, the indication time slot, the UE2, the data, the indication, the UE2, the indication, the data, the UE2 information, the UE2 information, the UE2, the indication information, the UE2, the data, the indication information, the indication time slot, the data, the UE2, the indication, the data, the UE2, the data, the indication, the UE2, the indication, the data, the indication, the UE2, the data, the indication, the UE2, the data, the indication, the data, the indication, the data, the UE2, the indication, the UE2, the data, the UE2, the indication information, the indication, the UE2, the data, the UE2, the indication, the UE2, the data, the indication, the data, the indication, the UE2 information, the data, the indication, the data, the indication, the data, the indication, the data.

Preferably, the network side node comprises at least of eNB, MCE, GW, MME, EUTRAN, OAM.

According to aspects of the invention, data transmission devices are provided, which are applied to D2D UEs and comprise an acquisition module, a data transmission module and a data transmission module, wherein the acquisition module is used for acquiring configuration indication information, the configuration indication information is used for indicating data processing modes of the D2D UEs in th time slots and second time slots of D2D subframes, and the data transmission module is used for transmitting or receiving data in th time slots and/or in the second time slots according to the configuration indication information.

Preferably, the obtaining module obtains the configuration indication information by at least of physical layer control signaling, higher layer signaling, and system predefinition.

Preferably, the data processing manner of the D2D UE in the th and the second slots of the D2D subframe includes . the D2D UE transmits signals in the th slot and receives signals in the second slot, the D2DUE receives signals in the th slot and transmits signals in the second slot, the D2D UE transmits signals to different nodes in the th and the second slots, respectively, and the D2D UE receives signals from different nodes in the th and the second slots, respectively.

Preferably, the obtaining module includes an th receiving unit, configured to receive the physical layer control signaling carrying the configuration indication information from the network side node and obtain the configuration indication information, and a second receiving unit, configured to receive the physical layer control signaling carrying the configuration indication information from the D2D communication peer UE and obtain the configuration indication information.

Preferably, the obtaining module includes: a third receiving unit, configured to receive a high-level signaling carrying the configuration indication information from a network side node, and obtain the configuration indication information; or, the fourth receiving unit is configured to receive a higher layer signaling carrying the configuration indication information from the D2D correspondent node UE, and acquire the configuration indication information.

According to another aspect of the present invention, there are provided data transmission apparatuses, which are applied to a network side node, and include a sending module, configured to send a signaling carrying configuration indication information to a D2DUE, where the configuration indication information is used to indicate a data processing manner of the D2D UE in the th slot and the second slot of a D2D subframe.

By the method and the device, the D2D UE can obtain the configuration indication information indicating the data processing modes of the D2D UE at the th time slot and the second time slot of the D2D subframe, so that data can be transmitted and/or received according to the configuration indication information, and the D2D UE can perform D2D data transmission in a more flexible resource mode by effectively dividing D2D communication resources, so that the resource utilization rate is improved, and efficient data transmission is realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this application , illustrate embodiments of the invention and together with the description serve to explain the invention without limiting it.

Fig. 1 is a schematic diagram of a cellular network data communication mode according to the related art;

fig. 2 is a schematic diagram of a D2D communication mode according to the related art;

FIG. 3 is a flow chart of a method of data transmission according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an LTE system frame structure according to the related art;

fig. 5 is a block diagram of a data transmission apparatus according to an embodiment of the present invention;

FIG. 6a is a schematic resource partitioning of cellular communications with D2D communications in accordance with a preferred embodiment of the present invention;

fig. 6b is a schematic resource partitioning diagram two of cellular communication and D2D communication according to the preferred embodiment of the present invention;

fig. 6c is a schematic third resource partitioning of cellular communication and D2D communication according to the preferred embodiment of the present invention;

FIG. 7a is a diagram illustrating the transmission/reception status of a UE on a D2D subframe in accordance with a preferred embodiment of the present invention;

FIG. 7b is a diagram illustrating a transmission/reception status of the UE on a D2D subframe according to the preferred embodiment of the present invention;

fig. 7c is a diagram illustrating a transmission/reception state of the UE on the D2D subframe according to the preferred embodiment of the present invention;

fig. 7D is a diagram illustrating a transmission/reception state of the UE on the D2D subframe according to the preferred embodiment of the present invention;

FIG. 8 is a high level signaling diagram of according to the preferred embodiment of the invention;

fig. 9 is a high-level signaling diagram according to the second preferred embodiment of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

An data transmission method is provided in an embodiment of the present invention, and fig. 3 is a flowchart of the data transmission method according to the embodiment of the present invention, as shown in fig. 3, including the following steps S302 to S304.

In step S302, the D2D UE obtains configuration indication information, where the configuration indication information is used to indicate data processing modes of the D2D UE in the th slot and the second slot of the D2D subframe.

At step S304, the D2D UE transmits or receives data at the th time slot and/or transmits or receives data at the second time slot according to the configuration indication information.

According to the method, D2D UE can obtain configuration indication information indicating data processing modes of the D2D UE in th time slot and second time slot of D2D subframe, so that data can be transmitted and/or received according to the configuration indication information, and D2D UE can perform D2D data transmission in a more flexible resource mode by effectively dividing D2D communication resources, so that resource utilization rate is improved, and efficient data transmission is realized.

As shown in fig. 4, the th slot and the second slot are divided into slots (slot) th slot #0 and slot #1 second slot, which are different from the conventional method in which data transmission is performed in units of subframes (subframes).

Preferably, the D2D UE acquires the configuration indication information by at least means of physical layer control signaling, higher layer signaling and system predefinition.

Preferably, the data processing mode of the D2D UE in the th time slot and the second time slot of the D2D subframe comprises , wherein the D2D UE transmits a signal in the th time slot and receives a signal in the second time slot, the D2D UE receives a signal in the th time slot and transmits a signal in the second time slot, the D2D UE transmits a signal to different nodes in the th time slot and the second time slot respectively, and the D2D UE receives a signal from different nodes in the th time slot and the second time slot respectively.

However, the following manners may be used in combination, or only the data processing manner of the D2D UE in the th slot or the second slot of the D2D subframe may be configured, and the specific method is similar to the following description, and is not described herein again.

(1) Physical layer control signaling

The D2D UE acquiring the configuration indication information through the physical layer control signaling includes: D2D UE receives a physical layer control signaling carrying configuration indication information from a network side node and acquires the configuration indication information; or, the D2D UE receives the physical layer control signaling carrying the configuration indication information from its D2D communication peer UE, and acquires the configuration indication information.

Preferably, the physical layer control signaling comprises DCI or a dedicated D2D communication control message.

Preferably, before the D2D UE acquires the configuration indication information through the physical layer control signaling, the network side node or the D2D communication peer UE needs to add the configuration indication information in the physical layer control signaling, and the configuration indication information may be carried by a 1-bit indication information bit or a 2-bit indication information bit, that is, the method may further include:

A. the network side node or the D2D communication peer UE carries configuration indication information through a 1-bit indication information bit in a physical layer control signaling, the setting value of the 1-bit indication information bit may be 0 and 1, and there are four data processing methods for the D2D UE in the th slot and the second slot of the D2D subframe, so there may be the following correspondence:

when the 1bit indication information bit is 0, the D2D UE receives data in the th time slot and transmits data in the second time slot;

or when the 1bit indication information bit is 1, the D2D UE receives data in the th time slot and transmits data in the second time slot;

or when the 1bit indication information bit is 0, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 1bit indication information bit is 1, the D2D UE transmits signals to different nodes on the th time slot and the second time slot respectively;

or when the 1bit indication information bit is 0, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 1bit indication information bit is 1, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 1bit indication information bit is 1, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 1bit indication information bit is 0, the D2D UE receives signals from different nodes on the th time slot and the second time slot respectively;

or when the 1bit indication information bit is 0, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, and when the 1bit indication information bit is 1, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot.

B. A network side node or a D2D communication peer UE carries configuration indication information through a 2bits indication information bit in a physical layer control signaling, a set value of the 2bits indication information bit may be 00, 01, 10, and 11, and there are four data processing manners of the D2D UE at the th time slot and the second time slot of the D2D subframe, so that four states of the 2bits indication information bit correspond to the four data processing manners , and the corresponding relationship is arbitrary and specifically as follows:

when the 2bits indicate information bit is 00, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicate information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE transmits data on the th time slot and receives the data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE transmits data on the th time slot and receives the data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE transmits data on the th time slot and receives the data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE transmits data on the th time slot and receives the data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE transmits data on the th time slot and receives the data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE transmits data on the th time slot and receives the data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicates that the information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicates that the information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicates that the information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicates that the information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE transmits data on the th time slot and receives data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE transmits data on the th time slot and receives data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE transmits data on the th time slot and receives the data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE receives signals from different nodes on the th time slot and the second time slot respectively, when the 2bits indicate that the information bit is 01, the D2D UE receives data on the th time slot and transmits the data on the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE transmits signals to different nodes on the th time slot and the second time slot respectively, when the 2bits indicate that the information bit is 11, the D2D UE transmits data on the th time slot and receives the data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicate that the information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicate that the information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicate that the information bit is 11, the D2D UE transmits data on the th time slot and receives data on the second time slot.

(2) High layer signaling

The D2D UE acquiring the configuration indication information through the higher layer signaling includes: D2D UE receives a high-level signaling carrying configuration indication information from a network side node and acquires the configuration indication information; or, the D2D UE receives the higher layer signaling carrying the configuration indication information from its D2D communication peer UE, and acquires the configuration indication information.

Preferably, the higher layer signaling includes of a D2D Connection establishment Request (D2D Connection Request) message, a D2D Connection establishment Request response (D2D Connection Setup) message, a D2D Connection reconfiguration (D2D Connection reconfiguration) message.

(3) System predefinition

The D2D UE predefining the acquisition configuration indication information through the system comprises the following steps: the system predefines configuration indication information according to the ID number size of D2D UEs in D2D communication; alternatively, the system predefines configuration indication information according to a master-slave relationship of D2D UEs in D2D communication; alternatively, the system predefines configuration indication information according to the active/passive relationship of the D2D UEs in D2D communication in D2D communication.

A. The system predefines configuration indication information according to the ID number size of D2D UE in D2D communication, which may include the following ways:

the system predefines two D2D UEs in D2D communication, D2D UE with large ID number transmits data in th time slot and receives data in the second time slot, D2D UE with small ID number receives data in th time slot and transmits data in the second time slot;

or the D2D UE with the small ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with the large ID number receives data in the time slot and transmits data in the second time slot;

or the D2D UE with a large ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with a small ID number transmits signals to different nodes in the time slot and the second time slot respectively;

or the D2D UE with small ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with large ID number transmits signals to different nodes in the time slot and the second time slot respectively;

or the D2D UE with a large ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with a small ID number receives signals from different nodes in the time slot and the second time slot respectively;

or the D2D UE with small ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with large ID number receives signals from different nodes in the time slot and the second time slot respectively;

or the D2D UE with a large ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with a small ID number transmits signals to different nodes in the time slot and the second time slot respectively;

or the D2D UE with small ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with large ID number transmits signals to different nodes in the time slot and the second time slot respectively;

or the D2D UE with a large ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with a small ID number receives signals from different nodes in the time slot and the second time slot respectively;

or the D2D UE with small ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with large ID number receives signals from different nodes in the time slot and the second time slot respectively;

or the D2D UE with the large ID number transmits signals to different nodes on the th time slot and the second time slot respectively;

or, the D2D UE with small ID number transmits signals to different nodes on the th and second time slots, respectively, and the D2D UE with large ID number receives signals from different nodes on the th and second time slots, respectively.

Preferably, the ID includes the C-RNTI of the UE or a dedicated ID of the UE in D2D communication, but may be any other ID capable of identifying the UE.

B. The system predefines configuration indication information according to master-slave relationship of D2D UEs in D2D communication, which may include the following ways:

the system predefines two D2D UEs in D2D communication, wherein the master UE carries out data transmission in a th time slot and carries out data reception in a second time slot;

or the slave UE transmits data at th time slot and receives data at the second time slot, the master UE receives data at th time slot and transmits data at the second time slot;

or the master UE transmits data in th time slot and receives data in the second time slot, and the slave UE transmits signals to different nodes in th time slot and the second time slot respectively;

or the slave UE transmits data in th time slot and receives data in the second time slot, the master UE transmits signals to different nodes in th time slot and the second time slot respectively;

or the master UE transmits data in th time slot and receives data in the second time slot, and the slave UE receives signals from different nodes in th time slot and the second time slot respectively;

or the slave UE transmits data in th time slot and receives data in the second time slot, the master UE receives signals from different nodes in th time slot and the second time slot respectively;

or the master UE receives data in the th time slot and transmits data in the second time slot, and the slave UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the slave UE receives data in the th time slot and transmits data in the second time slot, and the master UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the master UE receives data in th time slot and transmits data in the second time slot, and the slave UE receives signals from different nodes in th time slot and the second time slot respectively;

or the slave UE receives data in th time slot and transmits data in the second time slot, the master UE receives signals from different nodes in th time slot and the second time slot respectively;

or the master UE transmits signals to different nodes on a th time slot and a second time slot respectively;

alternatively, the slave UE transmits signals to different nodes on th and second slots, respectively, and the master UE receives signals from different nodes on th and second slots, respectively.

C. The system predefines configuration indication information according to the active/passive relationship of the D2D UEs in D2D communication in D2D communication, which may include the following ways:

the system predefines two D2D UEs in D2D communication, wherein the active UE carries out data transmission in a th time slot and carries out data reception in a second time slot;

or the passive UE transmits data at th time slot and receives data at the second time slot, the active UE receives data at th time slot and transmits data at the second time slot;

or the active UE transmits data in th time slot and receives data in the second time slot, the passive UE transmits signals to different nodes in th time slot and the second time slot respectively;

or the passive UE transmits data in th time slot and receives data in the second time slot, the active UE transmits signals to different nodes in th time slot and the second time slot respectively;

or the active UE transmits data in th time slot and receives data in the second time slot, the passive UE receives signals from different nodes in th time slot and the second time slot respectively;

or the passive UE transmits data in th time slot and receives data in the second time slot, the active UE receives signals from different nodes in th time slot and the second time slot respectively;

or the active UE receives data at time slot and transmits data at the second time slot, and the passive UE transmits signals to different nodes at time slot and the second time slot respectively;

or the passive UE receives data in th time slot and transmits data in the second time slot, and the active UE transmits signals to different nodes in th time slot and the second time slot respectively;

or the active UE receives data in th time slot and transmits data in the second time slot, and the passive UE receives signals from different nodes in th time slot and the second time slot respectively;

or the passive UE receives data in th time slot and transmits data in the second time slot, the active UE receives signals from different nodes in th time slot and the second time slot respectively;

or the active UE transmits signals to different nodes on a th time slot and a second time slot respectively;

alternatively, the passive UE transmits signals to different nodes on th and second slots, respectively, and the active UE receives signals from different nodes on th and second slots, respectively.

Preferably, the D2D subframes include subframes configured by the network side for D2D communication or subframes contention obtained by D2D UEs for D2D communication.

Preferably, the D2D communication data comprises D2D control data and/or D2D traffic data between the D2D UE and its D2D communication counterpart UE, and the cellular communication data comprises cellular communication control data and/or cellular communication traffic data between the D2D UE and the network side.

The embodiment of the invention also provides data transmission methods (described from a network side), which include that a network side node sends a signaling carrying configuration indication information to the D2D UE, wherein the configuration indication information is used for indicating data processing modes of the D2D UE in the th time slot and the second time slot of the D2D subframe.

Preferably, the signaling includes physical layer control signaling and/or higher layer signaling, wherein the physical layer control signaling includes DCI or dedicated D2D communication control message, and the higher layer signaling includes of a D2D connection establishment request message, a D2D connection establishment request response message, and a D2D connection reconfiguration message.

Preferably, the sending, by the network side node, the physical layer control signaling carrying the configuration indication information to the D2D UE includes: the network side node carries configuration indication information through a 1bit indication information bit or a 2bits indication information bit in a physical layer control signaling.

A. The network side node carries configuration indication information through a 1-bit indication information bit in a physical layer control signaling, the setting value of the 1-bit indication information bit can be 0 and 1, and four data processing modes of D2D UE at the th time slot and the second time slot of the D2D subframe exist, so that the following corresponding relations can exist:

B. The network side node carries configuration indication information through a 2bits indication information bit in a physical layer control signaling, a setting value of the 2bits indication information bit can be 00, 01, 10 and 11, and there are four data processing modes of the D2D UE at the th time slot and the second time slot of the D2D subframe, so that four states of the 2bits indication information bit correspond to the four data processing modes , and the corresponding relationship is arbitrary and specifically as follows:

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2DUE receives data on the time slot and transmits data on the second time slot;

The embodiment of the present invention further provides data transmission apparatuses, which are applied to D2D UEs and can be used to implement the data transmission method described in the above embodiment shown in fig. 3 and its preferred embodiment fig. 5 is a block diagram of a data transmission apparatus according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes an obtaining module 52 and a data transmission module 54.

The system comprises an acquisition module 52 for acquiring configuration indication information, wherein the configuration indication information is used for indicating a data processing mode of the D2D UE at the th time slot and the second time slot of the D2D subframe, and a data transmission module 54 coupled to the acquisition module 52 for transmitting or receiving data at the th time slot and/or transmitting or receiving data at the second time slot according to the configuration indication information.

Preferably, the obtaining module 52 obtains the configuration indication information by at least of physical layer control signaling, higher layer signaling, and system predefinition.

Preferably, the data processing mode of the D2D UE in the th and second slots of the D2D subframe includes that the D2D UE transmits signals in the th slot and receives signals in the second slot, the D2D UE receives signals in the th slot and transmits signals in the second slot, the D2D UE transmits signals to different nodes in the th and second slots, respectively, and the D2D UE receives signals from different nodes in the th and second slots, respectively.

Preferably, the obtaining module 52 includes an th receiving unit, configured to receive the physical layer control signaling carrying the configuration indication information from the network side node and obtain the configuration indication information, and a second receiving unit, configured to receive the physical layer control signaling carrying the configuration indication information from the D2D communication peer UE and obtain the configuration indication information.

Preferably, the obtaining module 52 includes: a third receiving unit, configured to receive a high-level signaling carrying configuration indication information from a network side node, and obtain the configuration indication information; or, the fourth receiving unit is configured to receive a higher layer signaling carrying the configuration indication information from the D2D correspondent node UE, and acquire the configuration indication information.

The device comprises a sending module, a receiving module and a sending module, wherein the sending module is used for sending a signaling carrying configuration indication information to D2D UE, and the configuration indication information is used for indicating a data processing mode of the D2D UE in the time slot and the second time slot of the D2D subframe.

It should be noted that the data transmission devices applied to the D2D UE side and the network side node correspond to the data transmission methods described in the two sides, respectively, and the specific implementation process thereof has been described in detail in the method embodiment, and is not described herein again.

In order to make the technical solution and implementation method of the present invention clearer, the following describes the implementation process in detail with reference to the preferred embodiments.

The network side may include kinds or more of the following entities, eNB, MCE, GW, MME, EUTRAN, OAM, and the eNB is taken as the configuration control entity of the network side for the following description.

In D2D communication, two or more UEs may perform direct transmission of data under the control of the eNB. For simplicity, two UEs constituting D2D UE Pair will be described below as an example.

The D2D capable UE may operate in two modes, a cellular network communication mode and a D2D communication mode, and the UE may simultaneously maintain a cellular communication connection with a base station and a D2D communication connection with a D2D communication peer UE, the UE implementing data bearers for cellular communication and D2D communication on different resources according to the configuration.

The Resource partitioning between cellular communication and D2D communication can be performed from both time domain and frequency domain dimensions, from time domain, it can be divided into cellular communication sub-frames (Macro subframe) and D2D sub-frames (D2D subframe) by sub-frames, as shown in fig. 6a, from frequency domain, it can be divided by Physical Resource Block (PRB), all PRBs within the system available bandwidth are divided into two types, i.e. PRB for cellular communication and D2D communication respectively, as shown in fig. 6b, or both can be combined, and partial PRB is divided by step within D2D subframe as D2D Resource, as shown in fig. 6c, D2D subframe and D2 365 PRB Resource can be configured by base station to indicate to UE, or can be obtained by UE through contention Resource according to system specification, in addition, on D2D subframe, UE can transmit data on cellular communication sub-frame, i.e. PRB Resource can be configured by base station to indicate to UE, or can transmit data on cellular communication sub-frame 483, and data can also carry data on cellular communication sub-D2.

When a UE is in D2D communication, it may simultaneously maintain D2D connections with multiple D2D UEs and also perform cellular communication with a base station, where the UE needs to transmit and receive the following data: data receiving/transmitting between UE and base station; the UE communicates with D2D to receive/transmit data of peer UE 1; the UE communicates with D2D to receive/transmit data of peer UE 2; the UE communicates with D2D for data transmission/reception, etc. of peer UE 3. The data may include control data and/or service data, where the control data includes configuration information, scheduling information, Hybrid Automatic Repeat Request (HARQ) feedback, a measurement report, a resource Request, and the like.

On D2D subframe, the UE performs independent data transmission on two slots, where the data transmission includes transmission or reception of data, i.e. the UE performs transmission or reception of data on slot #0 and slot #1, respectively, then the transmission/reception state of the UE on D2D subframe may include the following situations: UE transmits signal on slot #0 and receives signal on slot #1, as shown in fig. 7 a; UE receives signal on slot #0 and transmits signal on slot #1, as shown in fig. 7 b; UE transmits signals to different nodes on slot #0 and slot #1, respectively, as shown in fig. 7 c; the UE receives signals from different nodes on slot #0 and slot #1, respectively, as shown in fig. 7 d.

Since the UE can perform independent data transmission on two slots of the D2D subframe, that is, transmit or receive D2D data in slots, it is necessary for the D2D UE to obtain configuration indication of data processing manner on two slots of the D2D subframe, that is, the configuration indication indicates that the UE is used for D2D transmission or reception on two slots, respectively.

On the D2D subframe, the UE needs to determine how to transmit or receive data on slot #0 and slot #1, so that corresponding configuration needs to be performed, and specific configuration modes can be divided into the following three types:

mode (1), the data processing mode of the UE on two slots of the D2D subframe is indicated by high layer signaling configuration.

Under the control of the eNB, the UE a performs D2D Connection establishment with the UE B, and may perform configuration indication on a data processing manner on a slot in a D2D Connection establishment Request (D2 DConnection Request) message or a D2D Connection establishment Request response (D2D Connection Setup) message, that is, perform configuration indication on data transmission or reception on two slots of a D2D subframe in the D2D Connection establishment process.

Or, in the higher layer signaling for configuring the D2D communication Connection to the UE a, the configuration indication of the data processing manner on the two slots of the D2D subframe is performed, that is, in the D2D Connection Reconfiguration (D2D Connection Reconfiguration) message, the configuration of data transmission or reception on the two slots of the D2D subframe is indicated to the UE a. The D2D connection reconfiguration message may be indicated to UE a by the eNB or D2D correspondent UE (UE b).

Mode (2), through physical layer control signaling, the configuration indication information about the data processing mode is carried in the control signaling for scheduling indication UE about D2D data transmission, and indicates the UE about the data transmission method on two slots of D2D subframe. The control signaling carrying the above configuration indication information may be DCI, or a dedicated D2D communication control message (ProSe-CI, PCI).

The method includes that an eNB or a UE B configures and indicates two slots of a D2D subframe to the UE A through DCI, specifically, two configurations can be indicated to the UE A through a 1-bit indication information bit, for example, when the indication information bit is '1', data transmission is carried out on slot #0 corresponding to the UE A, data reception is carried out on slot #1, when the indication information bit is '0', data reception is carried out on slot #0 corresponding to the UE A, data transmission is carried out on slot #1, or the setting value of the indication information bit is opposite to the corresponding indication meaning, and other modes are not listed here, is also available, four configurations can be indicated to the UE A through a 2-bit indication information bit, for example, the UE A transmits data on slot #0, receives data on slot #1, the UE A receives data on slot #0, transmits data on slot #1, the UE A respectively transmits data on slot #0 and slot #1, the UE A respectively indicates that the four specific relations of 'data transmission or reception is carried out on slot #0, slot #1, the UE A respectively indicates four states corresponding to the slot #0, 1, the UE A1, the four specific relations of' 1 ', the four types of data transmission, and the UE A1', the UE A, the UE B can indicate.

Mode (3), the system predefines the data processing mode of the UE on two slots of the D2D subframe.

In a system supporting D2D communication, a data processing manner between D2D UE Pair may be predefined on two slots of a D2D subframe, and when a UE establishes a D2D connection and starts D2D data transmission, data transmission or reception may be performed on a corresponding slot of a D2D subframe according to rules predefined by the system.

The rules predefined by the system may include a plurality of different manners, for example, determining the manner of data processing of the UE on the slot of the D2D subframe according to the sizes of the ID numbers of two UEs constituting the D2D UE Pair, for example, the UE with the large ID number uses slot #0 for data transmission and slot #1 for data reception; the UE with small ID number uses slot #0 to receive data, slot #1 to transmit data, or the reverse rule. The UE ID may be a C-RNTI of the UE, a dedicated ID (D-RNTI or D-ID) in D2D communication, or any other ID that may identify the UE.

The rules predefined by the system may also be determined according to the relationship between two UEs in the D2D UE Pair, for example, when two UEs in the D2D UE Pair are distinguished as master UE and slave UE, i.e., the master UE has higher authority for communicating with the peer UE (slave UE) in relation to D2D, or may perform management functions such as configuration or scheduling defined by on the slave UE.

The rules predefined by the system can be further distinguished according to the function difference of two UEs in the D2D UE Pair in D2D communication, and the data processing manner is predefined according to the active UE and the passive UE in the D2D connection communication relationship establishment process, for example, a UE (active UE) initiating a D2D connection establishment request uses slot #0 for data transmission, slot #1 for data reception, a UE (passive UE) accepting a D2D connection establishment request uses slot #0 for data reception, slot #1 for data transmission, or the opposite rule.

Preferred embodiment

The preferred embodiment describes configuring the data processing manner of the UE on two slots of the D2D subframe through higher layer signaling (taking D2D connection establishment procedure as an example).

The method includes that D2D discovery and pairing are performed between UE A and UE B under the control instruction of an eNB, the UE A sends a D2D Connection establishment Request (D2D Connection Request) message to the UE B (or sends the D2D Connection Request) to the UE B through the eNB, after the UE B receives the D2D Connection establishment Request message, the UE B sends a D2D Connection establishment (D2D Connection Setup) message to the UE A, and the D2D Connection establishment message comprises configuration indication information of a data processing mode of a time slot in a D2D subframe. After receiving (or receiving by the eNB) the D2D Connection establishment message, the UE a obtains the configuration indication information, performs data transmission and reception of D2D communication according to the content of the configuration indication information, and feeds back a D2D Connection Setup Complete (D2D Connection Setup Complete) message to the UE B, which is implemented as shown in fig. 8.

Preferred embodiment two

The preferred embodiment describes a data processing method for configuring two slots indicating the UE on the D2D subframe through a higher layer signaling (taking D2D congestion as an example).

The UE A and the UE B establish D2D communication Connection under the control instruction of the eNB, the eNB respectively carries out D2D communication configuration instruction to the UE A and the UE B, and the D2D Connection Reconfiguration (D2D Connection Reconfiguration) message is used for indicating the two UEs. In the D2D Connection Reconfiguration message, the eNB configures a configuration instructing UE a to receive data of UE B at slot #0 of the D2D subframe and to transmit data to UE B at slot # 1; and instructing UE B to send data to UE A in slot #0 of the D2D subframe and receive the data of UE A in slot # 1. After receiving the configuration message from the eNB, UE a and UE B obtain the configuration instruction information, perform data transmission and reception of D2D communication according to the corresponding instruction, and feed back a D2D connection Reconfiguration Complete (D2 DConnection Reconfiguration Complete) message to the eNB, so that the implementation flow is as shown in fig. 9.

Preferred embodiment three

The preferred embodiment describes a data processing method for indicating the UE on two slots of the D2D subframe by physical layer signaling (taking 1-bit information indicator bit as an example).

In the D2D communication process, the eNB may schedule data transmission of two UEs in the D2D UE Pair in real time, that is, the eNB may indicate the data processing mode of the UE on the timeslot through the physical layer scheduling control information sent to the D2D UE by using a centralized scheduling mode.

The eNB indicates scheduling control information of the UE about D2D communication through DCI, wherein the DCI includes an indication information bit of 1bit, which is used for indicating a data processing mode on a slot, for example, when the indication information bit is "1", UE A is indicated to transmit data at slot #0 and receive data at slot # 1; when the indication information bit is "0", that is, UE a is instructed to receive data at slot #0 and transmit data at slot #1, or the setting value of the indication information bit is opposite to the corresponding indication meaning.

Preferred embodiment four

The preferred embodiment describes a data processing manner of the UE on two slots of the D2D sub-frame predefined by the system (for example, predefined according to the size of the ID number of the UE).

The system sets a fixed rule for the data processing mode on the slot of the D2D subframe in the communication process of D2D, and specifies that in D2D UE Pair, the UE with the large ID number uses slot #0 in the D2D subframe to transmit data, slot #1 to receive data, the UE with the small ID number uses slot #0 to receive data, and slot #1 to transmit data, or the reverse rule can be set.

When the UE A and the UE B carry out D2D communication, the UE A and the UE B can obtain ID information of the opposite UE, for example, C-RNTI of the opposite UE, the UE A and the UE B can carry out size comparison on the ID numbers of the opposite UE, and the UE A and the UE B can naturally distinguish data processing modes on time slots in a D2D subframe without any signaling or indication. For example, if the ID number of UE a is greater than the ID number of UE B, UE a transmits data to UE B at slot #0, and receives data of UE B at slot # 1; and UE B receives the data of UE A at slot #0 and transmits the data to UE A at slot # 1.

Preferred embodiment five

The preferred embodiment describes a data processing manner of the UE on two slots of the D2D sub-frame predefined by the system (for example, predefined according to the master-slave relationship of the UE).

The system sets a fixed rule for the data processing mode on the slot in the D2D subframe in the D2D communication process, and specifies that the master UE in the D2D UE Pair uses slot #0 in the D2D subframe to transmit data, slot #1 to receive data, the slave UE uses slot #0 to receive data, and slot #1 to transmit data, or sets the opposite rule.

In the communication process of D2D, partial semi-static resource configuration may be performed by the eNB for D2D UE Pair as D2D communication resource, and UE a and UE B that constitute D2D UE Pair perform D2D data transmission using the resource configured by the eNB, where UE a is a master UE and has a function and authority of performing -step control on D2D data transmission, and UE B is a slave UE and performs data transmission according to scheduling control of eNB and UE a, UE a may be configured to perform data transmission to UE B at slot #0, receive data of UE B at slot #1, receive data of UE a at slot #0, and perform data transmission to UE a at slot # 1.

Preferred embodiment six

The preferred embodiment describes configuring the data processing mode of the UE on two slots of the D2D subframe through the higher layer signaling (taking D2D reconfiguration as an example) and the physical layer signaling (taking 1bit indication information bit as an example).

Under the control instruction of the eNB, UE A establishes a D2D communication Connection with UE B, UE A simultaneously maintains cellular communication Connection with the eNB, the eNB carries out configuration instruction of D2D communication to UE A, indicates UE A to transmit D2 7 communication data at slot #0 of a D2D subframe through a D2D Connection Reconfiguration (D2D ConnectionReconfiguration) message, and transmits cellular communication data at slot #1 in a D2D Connection Reconfiguration message, wherein the eNB carries out steps to indicate the specific transmitting or receiving state of UE A through physical layer signaling, indicates through 1bit indication information bit in corresponding DCI of UE A, indicates UE A to transmit cellular communication data at slot #0 and receives D2D communication data at slot #1 when the information bit is '0', indicates UE A to transmit cellular communication data at slot #0, and transmits cellular communication data at slot # 26 when the information bit is '1'.

The UE a obtains the configuration indication information of the data processing method in the slot of the D2D subframe according to the eNB configuration and the DCI indication, and performs data transmission and reception of the D2D communication and/or the cellular communication according to the corresponding indication.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as sets of computer executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than here.

In summary, according to the embodiments of the present invention, the D2D UE may obtain configuration indication information indicating data processing manners of the D2D subframe at the th time slot and the second time slot, so as to transmit and/or receive data according to the configuration indication information, and by effectively dividing the D2D communication resources, the D2D UE performs D2D data transmission in a more flexible resource manner, thereby improving resource utilization rate and achieving efficient data transmission.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1, a data transmission method, comprising:

the method comprises the steps that the device-to-device (D2D) User Equipment (UE) acquires configuration indication information, wherein the configuration indication information is used for indicating data processing modes of the D2D UE at the th time slot and the second time slot of a D2D subframe;

the D2D UE transmitting or receiving data on the th time slot and/or transmitting or receiving data on the second time slot according to the configuration indication information;

wherein the D2D subframe carrying D2D communication data and cellular communication data comprises transmitting the D2D communication data on slots of the D2D subframe and transmitting the cellular communication data on another slots;

the D2D communication data includes D2D control data and/or D2D traffic data between the D2D UE and its D2D communication counterpart UE, the cellular communication data includes cellular communication control data and/or cellular communication traffic data between the D2D UE and the network side.

2. The method of claim 1, wherein the D2D UE obtains the configuration indication information by at least one of physical layer control signaling, higher layer signaling, and system predefinition.

3. The method of claim 1, wherein the data processing manner of the D2D UE at the th and second slots of the D2D subframe comprises :

the D2D UE transmitting a signal on the time slot and receiving a signal on the second time slot;

the D2D UE receiving a signal on the th slot and transmitting a signal on the second slot;

the D2D UE transmitting signals to different nodes on the and the second time slots, respectively;

the D2D UEs receive signals from different nodes on the and the second time slots, respectively.

4. The method according to claim 3, wherein the node comprises a network side node and/or a D2D correspondent UE of the D2DUE, and wherein the signal is used for carrying D2D communication data or cellular communication data.

5. The method of claim 2, wherein the D2D UE obtaining the configuration indication information through physical layer control signaling comprises:

the D2D UE receives a physical layer control signaling carrying the configuration indication information from a network side node, and acquires the configuration indication information; alternatively, the first and second electrodes may be,

and the D2D UE receives a physical layer control signaling carrying the configuration indication information from the D2D communication opposite end UE, and acquires the configuration indication information.

6. The method according to claim 5, wherein the physical layer control signaling comprises a downlink control message DCI or a dedicated D2D communication control message.

7. The method of claim 5, wherein before the D2D UE obtains the configuration indication information through physical layer control signaling, the method further comprises:

the network side node or the D2D correspondent node UE carries the configuration indication information through a 1-bit indication information bit in the physical layer control signaling,

when the 1-bit indication information bit is 0, the D2D UE receives data in the th time slot and transmits data in the second time slot;

or when the 1bit indication information bit is 1, the D2D UE performs data transmission at the th time slot and performs data reception at the second time slot, and when the 1bit indication information bit is 0, the D2D UE performs data reception at the th time slot and performs data transmission at the second time slot;

or, when the 1bit indication information bit is 1, the D2D UE transmits data in the th time slot and receives data in the second time slot, and when the 1bit indication information bit is 0, the D2D UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or, when the 1bit indication information bit is 0, the D2D UE transmits data in the th time slot and receives data in the second time slot, and when the 1bit indication information bit is 1, the D2D UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or, when the 1bit indication information bit is 1, the D2D UE transmits data in the th time slot and receives data in the second time slot, and when the 1bit indication information bit is 0, the D2D UE receives signals from different nodes in the th time slot and the second time slot respectively;

or, when the 1bit indication information bit is 0, the D2D UE transmits data in the th time slot and receives data in the second time slot, and when the 1bit indication information bit is 1, the D2D UE receives signals from different nodes in the th time slot and the second time slot respectively;

or, when the 1bit indication information bit is 1, the D2D UE performs data reception in the th time slot and performs data transmission in the second time slot, and when the 1bit indication information bit is 0, the D2D UE transmits signals to different nodes in the th time slot and the second time slot, respectively;

or, when the 1bit indication information bit is 0, the D2D UE performs data reception in the th time slot and performs data transmission in the second time slot, and when the 1bit indication information bit is 1, the D2D UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or, when the 1bit indication information bit is 1, the D2D UE performs data reception in the th time slot and performs data transmission in the second time slot, and when the 1bit indication information bit is 0, the D2D UE receives signals from different nodes in the th time slot and the second time slot respectively;

or, when the 1bit indication information bit is 0, the D2D UE performs data reception in the th time slot and performs data transmission in the second time slot, and when the 1bit indication information bit is 1, the D2D UE receives signals from different nodes in the th time slot and the second time slot respectively;

or when the 1bit indication information bit is 0, the D2D UE respectively transmits signals to different nodes at the th time slot and the second time slot, and when the 1bit indication information bit is 1, the D2D UE respectively receives signals from different nodes at the th time slot and the second time slot.

8. The method of claim 5, wherein before the D2D UE obtains the configuration indication information through physical layer control signaling, the method further comprises:

the network side node or the D2D correspondent node UE carries the configuration indication information through a 2bits indication information bit in the physical layer control signaling,

when the 2bits indicating information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2DUE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2DUE receives signals from different nodes on the time slot and the second time slot respectively, and when the 2bits indicating information bit is 11, the D2DUE transmits signals to different nodes on the time slot and the second time slot respectively;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits signals to different nodes on the time slot and the second time slot respectively, when the 2bits indicating information bit is 10, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives signals from different nodes on the time slot and the second time slot respectively;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the time slot and transmits data on the second time slot;

or when the 2bits indication information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indication information bit is 01, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indication information bit is 10, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indication information bit is 11, the D2DUE respectively transmits signals to different nodes on the time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the time slot and transmits data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE transmits data on the time slot and receives data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE transmits data on the time slot and receives data on the second time slot, when the 2bits indicating information bit is 11, the D2DUE respectively transmits signals to different nodes on the time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE receives data on the time slot and transmits data on the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE transmits data on the time slot and receives data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE transmits data on the th time slot and receives data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE transmits data on the th time slot and receives data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 11, the D2DUE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 11, the D2DUE respectively transmits signals to different nodes on the th time slot and the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE receives data on the th time slot and transmits data on the second time slot, when the 2bits indicating information bit is 10, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 11, the D2D UE transmits data on the th time slot and receives data on the second time slot;

or when the 2bits indicating information bit is 00, the D2D UE respectively receives signals from different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 01, the D2D UE respectively transmits signals to different nodes on the th time slot and the second time slot, when the 2bits indicating information bit is 10, the D2D UE transmits data on the th time slot and receives data on the second time slot, when the 2bits indicating information bit is 11, the D2D UE receives data on the th time slot and transmits data on the second time slot;

or when the 2bits indication information bit is 00, the D2D UE respectively receives signals from different nodes on the time slot and the second time slot, when the 2bits indication information bit is 01, the D2D UE respectively transmits signals to different nodes on the time slot and the second time slot, when the 2bits indication information bit is 10, the D2D UE receives data on the time slot and transmits data on the second time slot, and when the 2bits indication information bit is 11, the D2D UE transmits data on the time slot and receives data on the second time slot.

9. The method of claim 2, wherein the D2D UE obtaining the configuration indication information through higher layer signaling comprises:

the D2D UE receives a high-level signaling carrying the configuration indication information from a network side node and acquires the configuration indication information; alternatively, the first and second electrodes may be,

and the D2D UE receives a high-level signaling carrying the configuration indication information from the D2D communication opposite-end UE and acquires the configuration indication information.

10. The method of claim 9, wherein the higher layer signaling comprises a D2D connection establishment request message, a D2D connection establishment request response message, and a D2D connection reconfiguration message.

11. The method of claim 2, wherein predefining, by the D2D UE, the configuration indication information comprises:

the system predefines the configuration indication information according to the identification ID number size of the D2D UE in D2D communication;

alternatively, the system predefines the configuration indication information according to a master-slave relationship of the D2D UE in D2D communication;

alternatively, the system predefines the configuration indication information according to an active/passive relationship of the D2D UE in D2D communication in the D2D communication.

12. The method of claim 11, wherein the system predefining the configuration indication information according to an ID number size of a D2D UE in D2D communication comprises:

the system predefines that D2D UE with large ID number is in data transmission at the th time slot and in the second time slot of two D2D UEs in D2D communication, and the D2D UE with small ID number is in data reception at the th time slot and in the second time slot;

or the D2D UE with the large ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with the small ID number transmits signals to different nodes in the time slot and the second time slot respectively;

or the D2D UE with the small ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with the large ID number transmits signals to different nodes in the time slot and the second time slot respectively;

or the D2D UE with large ID number transmits data in the time slot and receives data in the second time slot, and the D2D UE with small ID number receives signals from different nodes in the time slot and the second time slot respectively;

or the D2D UE with the large ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with the small ID number transmits signals to different nodes on the time slot and the second time slot respectively;

or the D2D UE with the small ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with the large ID number transmits signals to different nodes on the time slot and the second time slot respectively;

or the D2D UE with large ID number receives data in the time slot and transmits data in the second time slot, and the D2D UE with small ID number receives signals from different nodes in the time slot and the second time slot respectively;

or the D2D UE with large ID number transmits signals to different nodes on the time slot and the second time slot respectively, and the D2D UE with small ID number receives signals from different nodes on the time slot and the second time slot respectively;

or the D2D UEs with small ID numbers transmit signals to different nodes on the th time slot and the second time slot respectively, and the D2D UEs with large ID numbers receive signals from different nodes on the th time slot and the second time slot respectively.

13. The method of claim 11, wherein the ID comprises a cell radio network temporary identity, C-RNTI, of the UE or a dedicated ID of the UE in D2D communication.

14. The method of claim 11, wherein the system predefining the configuration indication information according to the master-slave relationship of the D2DUE in D2D communication comprises:

the system predefines two D2D UEs in D2D communication, wherein the master UE carries out data transmission in the th time slot and carries out data reception in the second time slot;

or the slave UE transmits data in the th time slot and receives data in the second time slot, and the master UE receives data in the th time slot and transmits data in the second time slot;

or the master UE transmits data in the th time slot and receives data in the second time slot, and the slave UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the slave UE transmits data in the th time slot and receives data in the second time slot, and the master UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the master UE transmits data in the th time slot and receives data in the second time slot, and the slave UE receives signals from different nodes in the th time slot and the second time slot respectively;

or the slave UE transmits data in the th time slot and receives data in the second time slot, and the master UE receives signals from different nodes in the th time slot and the second time slot respectively;

or the master UE receives data in the th time slot and transmits data in the second time slot, and the slave UE receives signals from different nodes in the th time slot and the second time slot respectively;

or the slave UE receives data in the th time slot and transmits data in the second time slot, and the master UE receives signals from different nodes in the th time slot and the second time slot respectively;

or the master UE transmits signals to different nodes on the th time slot and the second time slot respectively;

or the slave UE transmits signals to different nodes on the th time slot and the second time slot respectively, and the master UE receives signals from different nodes on the th time slot and the second time slot respectively.

15. The method of claim 11, wherein the system predefining the configuration indication information according to an active/passive relationship of the D2DUE in the D2D communication being in the D2D communication comprises:

the system predefines two D2D UEs in D2D communication, wherein the active UE carries out data transmission in the th time slot and carries out data reception in the second time slot;

or the passive UE transmits data in the th time slot and receives data in the second time slot, and the active UE receives data in the th time slot and transmits data in the second time slot;

or the active UE transmits data in the th time slot and receives data in the second time slot, and the passive UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the passive UE transmits data in the th time slot and receives data in the second time slot, and the active UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the active UE transmits data in the th time slot and receives data in the second time slot, and the passive UE receives signals from different nodes in the th time slot and the second time slot respectively;

or the passive UE transmits data in the th time slot and receives data in the second time slot, and the active UE receives signals from different nodes in the th time slot and the second time slot respectively;

or the active UE carries out data receiving at the th time slot and carries out data transmission at the second time slot, and the passive UE respectively transmits signals to different nodes at the th time slot and the second time slot;

or the passive UE receives data in the th time slot and transmits data in the second time slot, and the active UE transmits signals to different nodes in the th time slot and the second time slot respectively;

or the active UE carries out data receiving at the th time slot and carries out data transmission at the second time slot, and the passive UE respectively receives signals from different nodes at the th time slot and the second time slot;

or the passive UE carries out data receiving at the th time slot and carries out data transmission at the second time slot, and the active UE respectively receives signals from different nodes at the th time slot and the second time slot;

or the active UE transmits signals to different nodes on the th time slot and the second time slot respectively;

or the passive UE transmits signals to different nodes on the th time slot and the second time slot respectively, and the active UE receives signals from different nodes on the th time slot and the second time slot respectively.

16. The method of , wherein the D2D subframes comprise subframes configured by a network side for D2D communication or subframes contended by the D2D UEs for D2D communication.

A data transmission method of , comprising:

a network side node sends a signaling carrying configuration indication information to device-to-device (D2D) User Equipment (UE), wherein the configuration indication information is used for indicating a data processing mode of the D2D UE at the th time slot and the second time slot of a D2D subframe;

18. The method of claim 17, wherein the data processing manner of the D2D UE at the th slot and the second slot of the D2D subframe comprises :

19. The method according to claim 18, wherein the node comprises a network side node and/or a D2D correspondent UE of the D2DUE, and wherein the signal is used for carrying D2D communication data or cellular communication data.

20. The method of claim 17, wherein the signaling comprises physical layer control signaling and/or higher layer signaling, wherein the physical layer control signaling comprises a downlink control message (DCI) or a dedicated D2D communication control message, and wherein the higher layer signaling comprises a : D2D connection establishment request message, a D2D connection establishment request response message, and a D2D connection reconfiguration message.

21. The method of claim 20, wherein the sending, by the network side node, the physical layer control signaling carrying the configuration indication information to the D2D UE comprises:

the network side node carries the configuration indication information through a 1bit indication information bit in the physical layer control signaling,

22. The method of claim 20, wherein the sending, by the network side node, the physical layer control signaling carrying the configuration indication information to the D2D UE comprises:

the network side node carries the configuration indication information through a 2bits indication information bit in the physical layer control signaling,

23. The method of , wherein the D2D subframes comprise subframes configured by a network side for D2D communication or subframes contended by the D2D UEs for D2D communication.

The data transmission device of the type 24, , for a device-to-device, D2D, user equipment, UE, comprising:

an obtaining module, configured to obtain configuration indication information, where the configuration indication information is used to indicate a data processing manner of the D2D UE in th and second slots of a D2D subframe;

the data transmission module is used for transmitting or receiving data at the th time slot and/or transmitting or receiving data at the second time slot according to the configuration indication information;

25. The apparatus of claim 24, wherein the obtaining module obtains the configuration indication information by at least of physical layer control signaling, higher layer signaling, and system predefinition.

26. The apparatus of claim 24, wherein data processing of the D2D UEs in the th and the second slots of the D2D subframe comprises :

27. The apparatus of claim 25, wherein the obtaining module comprises:

a th receiving unit, configured to receive a physical layer control signaling carrying the configuration indication information from a network side node, and obtain the configuration indication information;

a second receiving unit, configured to receive a physical layer control signaling carrying the configuration indication information from the D2D correspondent node UE, and obtain the configuration indication information.

28. The apparatus of claim 25, wherein the obtaining module comprises:

a third receiving unit, configured to receive a high-level signaling carrying the configuration indication information from a network side node, and obtain the configuration indication information; alternatively, the first and second electrodes may be,

a fourth receiving unit, configured to receive a high-level signaling carrying the configuration indication information from the D2D correspondent node UE, and obtain the configuration indication information.

29, data transmission device, applied to a network side node, comprising:

a sending module, configured to send a signaling carrying configuration indication information to a device-to-device D2D user equipment UE, where the configuration indication information is used to indicate a data processing mode of the D2D UE at a th time slot and a second time slot of a D2D subframe;

30. The apparatus of claim 29, wherein data processing of the D2D UEs in the th and second slots of the D2D subframe comprises :

31. The apparatus of claim 29, wherein the signaling comprises physical layer control signaling and/or higher layer signaling, wherein the physical layer control signaling comprises a downlink control message (DCI) or a dedicated D2D communication control message, and wherein the higher layer signaling comprises a : D2D connection establishment request message, a D2D connection establishment request response message, and a D2D connection reconfiguration message.