WO2014121679A1 - Procédé de transmission de données de communication de dispositif à dispositif, système correspondant, et équipement d'utilisateur - Google Patents

Procédé de transmission de données de communication de dispositif à dispositif, système correspondant, et équipement d'utilisateur Download PDF

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Publication number
WO2014121679A1
WO2014121679A1 PCT/CN2014/070585 CN2014070585W WO2014121679A1 WO 2014121679 A1 WO2014121679 A1 WO 2014121679A1 CN 2014070585 W CN2014070585 W CN 2014070585W WO 2014121679 A1 WO2014121679 A1 WO 2014121679A1
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Prior art keywords
slot
symbol
symbols
data transmission
communication data
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PCT/CN2014/070585
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English (en)
Chinese (zh)
Inventor
杨瑾
梁枫
吴栓栓
袁明
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中兴通讯股份有限公司
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Publication of WO2014121679A1 publication Critical patent/WO2014121679A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to a data transmission technology in the field of mobile communications, and in particular, to a device-to-device (D2D) communication data transmission method, system, and user equipment (UE).
  • D2D device-to-device
  • UE user equipment
  • the service data transmitted by UE1 to UE2 is first transmitted to the base station 1 through an air interface, which is referred to as an air interface, and the base station 1 passes the core network 1 through the core network.
  • the service data is transmitted to the base station 2; the base station 2 transmits the service data to the UE2 through the air interface, and the transmission of the service data of the UE2 to the UE1 adopts a similar processing flow.
  • UE1 and UE2 are in the same cell, as shown in Figure 1, although base station 1 and base station 2 are the same site, one data transmission still consumes two radio spectrum resources.
  • D2D communication means that the service data does not need to be forwarded by the base station, but is directly transmitted by the source UE to the target UE through the air interface. It can be seen that this communication mode has obvious distinguishing characteristics compared with the traditional cellular communication system communication mode. For users with close communication, D2D transmission not only saves wireless spectrum resources, but also reduces the data transmission pressure of the core network.
  • each radio frame is 10 ms, and 10 subframes are included.
  • Each sub-frame is 1 ms, and is divided into two slots (slots) of 0.5 ms, respectively. For slot#0 and slot#l.
  • Cyclic Prefix CP
  • SC-FDMA Signal-Carrier Frequency Division Multiple Access
  • D2D communication based on cellular communication network is a new technology for directly communicating between multiple D2D-enabled terminal devices under the control of the system, which can not only reduce system resource occupation, but also improve the spectrum efficiency of the cellular communication system. , and can reduce the power consumption of the terminal transmission, and can also save network operation costs to a large extent.
  • the embodiments of the present invention provide a D2D communication data transmission method, system, and UE.
  • the embodiment of the invention provides a device-to-device D2D communication data transmission method, and the method includes:
  • the user equipment UE performs independent on the two slot slots of the D2D subframe subframe respectively.
  • Data transmission; the data transmission includes: transmission of data and/or reception of data.
  • the D2D subframe is a subframe configured for the D2D communication by the UE on the network side, or a subframe for D2D communication obtained by the UE through competition.
  • the network side includes one or more of the following entities: an evolved base station eNB, a cell cooperative entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network EUTRAN, operation management and maintenance OAM Manager.
  • the D2D subframe carries D2D communication data; or, simultaneously carries D2D communication data and cellular communication data.
  • the UE performs independent data transmission on two slots of the D2D subframe, as follows:
  • the UE transmits a signal on slot #0 and receives a signal on slot #1;
  • the UE receives a signal on slot #0 and transmits a signal on slot #1;
  • the UE transmits signals to different nodes on slot #0 and slot #1; or
  • the UE receives signals from different nodes on slot #0 and slot #1, respectively.
  • the signal carries D2D communication data or cellular communication data.
  • the D2D communication data includes: D2D control data and/or D2D service data between the UE and the D2D communication peer UE;
  • the cellular communication data includes: cellular communication control data and/or cellular communication service data between the UE and the network side.
  • the node includes: a D2D communication peer UE and/or a network side.
  • the UE transmits a signal on slot #0, which is:
  • the UE transmits a signal on symbol #0 to symbol #6, or symbol #1 to symbol #6, or symbol #0 to symbol #5, or symbol #1 to symbol #5;
  • the UE transmits a signal on symbol #0 to symbol #5, or symbol #1 to symbol #5, or symbol #0 to symbol #4, or symbol #1 to symbol #4.
  • the UE transmits a signal on slot #1, which is:
  • the UE When the system adopts Normal CP, the UE transmits signals on symbols #7 to #13, or symbols #8 to #13, or symbols #7 to #12, or symbols #8 to #12; In Extend CP, the UE transmits a signal on symbol #6 to symbol #11, or symbol #7 to symbol #11, or symbol #6 to symbol #10, or symbol #7 to symbol #10.
  • the UE receives a signal on slot #0, which is:
  • the UE When the system adopts Normal CP, the UE receives signals on symbols #0 to #6, or symbols #1 to #6, or symbols #0 to #5, or symbols #1 to #5; In the case of Extend CP, the UE receives signals on symbols #0 to #5, or symbols #1 to #5, or symbols #0 to #4, or symbols #1 to #4.
  • the UE receives a signal on slot #1, which is:
  • the UE When the system adopts Normal CP, the UE receives signals on symbols #7 to #13, or symbols #8 to #13, or symbols #7 to #12, or symbols #8 to #12; In the case of Extend CP, the UE receives signals on symbols #6 to #11, or symbols #7 to #11, or symbols #6 to #10, or symbols #7 to #10.
  • the method further comprises:
  • the UE transmits a signal on all or part of the physical resource block PRB of slot #0 or slot#1, where all or part of the PRB is configured by the network side, or obtained by the UE through contention, or is the UE in slot# l or PRB used when receiving signals on slot #0.
  • the method also includes:
  • the UE receives a signal on all or part of the PRB of slot #1 or slot#0, where all or part of the PRB is configured by the network side, or is obtained by the UE, or is the UE in slot#0 or slot# l
  • the PRB used to transmit the signal.
  • An embodiment of the present invention further provides a D2D communication data transmission system, where the system includes a UE. Independent data transmission is performed on two slots of the D2D subframe; the data transmission includes: transmission of data and/or reception of data.
  • the UE transmits a signal on slot #0 and receives a signal on slot #1; or, receives a signal on slot #0, transmits a signal on slot #1; or, in slot #0 and slot # respectively l transmitting signals to different nodes; or receiving signals from different nodes on slot #0 and slot #1;
  • the signal carries D2D communication data or cellular communication data.
  • the UE further includes: a data transmitting module and a data receiving module; wherein
  • the data transmitting module transmits a signal on slot #0; or, transmits a signal on slot #1; or transmits a signal to different nodes on slot #0 and slot #1;
  • the data receiving module receives a signal on slot #1; or, receives a signal on slot #0; or receives signals from different nodes on slot #0 and slot #1, respectively.
  • the data transmitting module transmits a signal on all or part of the physical resource block PRB of the slot #0 or the slot #1, where all or part of the PRBs are configured by the network side, or obtained by the UE through competition, or The PRB used when the UE receives a signal on slot #1 or slot #0.
  • the data receiving module receives the signal on all or part of the PRBs of the slot #1 or the slot #0, where all or part of the PRBs are configured by the network side, or are obtained by the UE, or are in the slot of the UE.
  • the system further comprises: a D2D communication peer UE and a network side, respectively performing data transmission with the UE.
  • An embodiment of the present invention further provides a UE, where the UE is the UE described above.
  • the D2D communication data transmission method and system and the UE provided by the embodiment of the present invention perform independent data transmission on the two slots of the D2D subframe.
  • the data transmission includes: data transmission and/or data reception.
  • the embodiment of the present invention not only can realize the transmission of D2D communication data by effectively dividing the D2D communication resources, but also, when the UE is in the cellular communication and In the state of D2D communication, D2D communication data and cellular communication data can be separately transmitted on two slots of the D2D subframe, which can largely save network operation cost. It can be seen that the embodiment of the present invention can enable the UE to perform efficient D2D communication data transmission and/or cellular communication data transmission, thereby improving resource utilization.
  • FIG. 1 is a schematic diagram of a data transmission mode of an existing cellular communication system
  • FIG. 2 is a schematic diagram of a D2D communication data transmission mode
  • FIG. 3 is a schematic diagram of a frame structure of an existing cellular communication system
  • FIG. 4 is a schematic diagram of a resource division manner of cellular communication and D2D communication according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a UE transmitting/receiving state on a D2D subframe in an embodiment of the present invention
  • FIG. 6 is a UE in an embodiment of the present invention
  • FIG. 7 is a schematic diagram of effective symbols for transmitting by the UE on slot #1 in the embodiment of the present invention
  • FIG. 8 is an effective manner for the UE to receive on slot #0 in the embodiment of the present invention
  • FIG. 9 is a schematic diagram of effective symbols for UE to receive on slot #1 in the embodiment of the present invention
  • FIG. 10 is a schematic diagram of resource allocation of a UE in a D2D dedicated frequency band according to Embodiment 1 of the present invention
  • FIG. 11 is an implementation of the present invention
  • FIG. 12 is a schematic diagram of D2D resource division in the third embodiment of the present invention
  • FIG. 13 is a schematic diagram of D2D resource division in Embodiment 4 of the present invention.
  • FIG. 17 is a schematic structural diagram of a system according to an embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of a UE according to an embodiment of the present invention. detailed description
  • the UE performs independent data transmission on two slots (slots) of the D2D subframe (frame); the data transmission includes: transmission of data and/or reception of data.
  • the UE is a UE that supports the D2D communication mode; the data includes: control data and/or service data, where the control data includes configuration information, scheduling information, HARQ feedback, measurement report, resource request, and the like. .
  • two or more UEs perform data transmission under the control of the base station, where the data transmission operation includes: data receiving/transmitting operation between the UE and the base station, and the D2D communication peer U E1/UE2/UE3 ... data receiving / sending operations, etc.
  • the following example is described by taking a D2D pair composed of two UEs, which can work in both cellular communication and D2D communication modes, and the UE may simultaneously perform cellular communication with the base station, and D2D communication D2D communication between peer UEs.
  • the UE implements data bearer for cellular communication and D 2D communication on different resources according to the configuration, and the specific implementation method is as follows:
  • the subframe can be divided into a cellular communication subframe (Macro subframe).
  • the D2D subframe when dividing from the frequency domain, it can be performed according to the physical resource block (PRB), and all the PRBs in the available bandwidth of the system are divided into two categories, including:
  • the PRB of the cellular communication and the PRB for the D2D communication are as shown in FIG. 4(b); in addition, the two may be combined and divided in the time domain + frequency domain manner, as shown in FIG. 4(c), Part of the PRB is further divided into D2D resources in the D2D subframe.
  • the resources include frequency domain resources and/or time domain resources.
  • the D2D subframe and the D2D PRB resource may be configured by the network side to the UE.
  • a subframe for D2D communication which may also be a subframe for D2D communication obtained by the UE by using a contention resource according to a system specification; wherein the network side includes one or more of the following entities: Base station (eNB), cell coordination entity (MCE), gateway (GW), mobility management device (MME), evolved universal terrestrial radio access network (EUTRAN), operation management and maintenance (OAM) manager.
  • the UE may carry the cellular communication data on a part of the resources, that is, the data transmission of the D2D communication or the data transmission of the cellular communication may be performed on the D2D subframe.
  • the implementation method of the embodiment of the present invention is: the UE performs independent data transmission on two slots (slots) of the D2D subframe; the data transmission includes: data transmission and/or data reception;
  • the UE performs independent signal transmission or reception on two slots of slot #0 and slot #1, including the following situation: the UE transmits a signal on slot #0, and receives a signal on slot #1, such as Figure 5 (a); or, the UE receives the signal on slot #0, and transmits the signal on slot #1, as shown in Figure 5 (b); or, the UE is on slot #0 and slot #1, respectively.
  • Different nodes transmit signals, as shown in Figure 5 (c); or, the UE receives signals from different nodes on slot #0 and slot #1, as shown in Figure 5 (d).
  • the signal carries D2D communication data and/or cellular communication data; the node includes: a D2D communication peer UE and/or a network side.
  • the and regions indicate that the UE is in the transmit signal state
  • the shown and destination regions indicate that the UE is in the receive signal state.
  • the D2D subframe can carry D2D communication data; or, the D2D communication data and the cellular communication data are simultaneously carried.
  • the D2D communication data includes: D2D control data and/or D2D service data between the UE and the D2D communication peer UE;
  • the cellular communication data includes: cellular communication control data between the UE and the network side, and/or Cellular communication service data.
  • the UE transmits a signal on all or part of the PRB of slot #0 or slot#1, where Said that all or part of the PRB is configured by the network side, or is obtained by the UE, or is used by the UE when receiving signals on slot #1 or slot#0; or
  • the UE receives a signal on all or part of the PRB of slot #1 or slot#0, where all or part of the PRB is configured by the network side, or is obtained by the UE, or is the UE in slot#0 or slot# l
  • the PRB used to transmit the signal.
  • the UE when the UE performs the transmission/reception state transition on the D2D subframe, a certain state transition time may be required.
  • one subframe of the UE before the D2D subframe may be different from the transmit or receive state on the D2D subframe. Therefore, it may also be necessary to perform a state transition. Affected by the above two factors, the number of actually valid transmitted or received symbols of the UE in the D2D subframe may be smaller than the number of symbols included in a single time slot, therefore:
  • the UE When the UE transmits a signal on slot #0, and when the system adopts Normal CP, the UE is in symbol #0 to symbol #6, or symbol #1 to symbol #6, or symbol #0 to symbol #5, or symbol #1 The signal is transmitted to symbol #5; when the system adopts Extend CP, the UE is at symbol #0 to symbol #5, or symbol #1 to symbol #5, or symbol #0 to symbol #4, or symbol #1 to symbol# The signal is transmitted on 4, as shown in Fig. 6, and the ⁇ region shown indicates a valid transmitted symbol.
  • the UE When the UE transmits a signal on slot #1, and when the system adopts Normal CP, the UE is at symbol #7 to symbol #13, or symbol #8 to symbol #13, or symbol #7 to symbol #12, or symbol #8.
  • the signal is transmitted to symbol #12; when the system adopts Extend CP, the UE is at symbol #6 to symbol #11, or symbol #7 to symbol #11, or symbol #6 to symbol #10, or symbol #7 to symbol#
  • the signal is transmitted on 10, as shown in Fig. 7, and the 10 area shown indicates a valid transmission symbol.
  • the UE When the UE receives a signal on slot #0, and when the system adopts Normal CP, the UE is in symbol #0 to symbol #6, or symbol #1 to symbol #6, or symbol #0 to symbol #5, or symbol #1 Receive signal on symbol #5; when the system adopts Extend CP, UE is in symbol #0 to symbol #5, or symbol #1 to symbol #5, or symbol #0 to symbol #4, or symbol #1 to symbol# 4 receives the signal, as shown in Figure 8, the area shown represents a valid received symbol.
  • the UE When the UE receives a signal on slot #1, and when the system adopts Normal CP, the UE is at symbol #7 to symbol #13, or symbol #8 to symbol #13, or symbol #7 to symbol #12, or symbol #8.
  • the signal is received on 10, as shown in Fig. 9, and the ⁇ area shown indicates a valid received symbol.
  • the UE and the D2D communication peer UE 1 perform bidirectional transmission of D2D communication, and in slot #0, the UE transmits the D2D communication data to the UE 1 to carry the D2D communication data.
  • the UE receives a signal from UE 1 carrying D2D communication data.
  • the UE uses the full PRB in the dedicated frequency band to carry the D2D service data on the slot #0, and transmits the data to the UE 1; the UE receives the UE 1 from the slot #1.
  • the signal of all the PRBs carries the D2D service data sent by the UE 1 to the UE, as shown in FIG. 10( a ).
  • the UE uses the full PRB in the dedicated frequency band to carry the D2D service data on the slot #0, and transmits the data to the UE 1; the UE receives the received message on the slot #1.
  • the UE uses the partial PRB in the dedicated frequency band to carry the D2D control data on the slot #0, and transmits the data to the UE 1; the UE receives the information from the slot #1.
  • the signal of the UE 1 includes all the PRBs in the dedicated frequency band, and carries the D2D service data sent by the UE 1 to the UE, as shown in FIG. 10(c).
  • the ⁇ area indicates that the UE is in the transmit signal state, and the ⁇ area indicated is shown.
  • the UE is in a receive signal state.
  • the UE competes with other D2D UE pairs that are adjacent to it to obtain a certain D2D subframe resource.
  • the UE and the D2D communication peer UE 1 perform bidirectional transmission of D2D communication.
  • slot #0 the UE receives The signal from the UE 1 carrying the D2D communication data, on the slot #1, the UE transmits a signal carrying the D2D communication data to the UE 1.
  • the D2D communication data signal is carried on the PRB obtained through the competition, and the UE is on the slot #0, and receives the signal from the UE 1 carrying the D2D service data on the obtained PRB;
  • the UE carries the D2D service data on the foregoing PRB of the slot #1, and transmits the data to the UE 1, as shown in FIG. 11(a).
  • the UE receives the signal carrying the D2D service data from the UE 1 on the slot #0, and the UE obtains the pre-configured PRB direction on the slot #1.
  • the UE 1 transmits a D2D control data signal, which carries the D2D service data receiving feedback information sent by the UE to the UE 1, as shown in FIG. 11(b).
  • the D2D communication data signal is carried on the PRB obtained through the competition, and the UE receives the signal carrying the D2D control data from the UE 1 on the pre-configured PRB on the slot #0, where Carrying a report on the D2D channel measurement sent by the UE 1 to the UE; the UE is on the slot #1, and carries the D2D service data on the obtained PRB, and transmits it to the UE 1, as shown in FIG. 11(c).
  • the ⁇ area indicates that the UE is in the transmit signal state
  • the closed area indicates that the UE is in the receive signal state.
  • the UE performs D2D communication data transmission to the D2D communication peer UE1, and performs cellular communication data transmission.
  • the UE transmits a signal carrying D2D communication data to UE1
  • the UE transmits a signal carrying cellular communication data to the eNB.
  • the UE uses the PRB for D2D communication configured by the eNB on slot #0, and carries the D2D service data to transmit to the UE 1; the UE uses the PRB configured for the cellular communication by the eNB on the slot #1.
  • the cellular communication service data is carried and transmitted to the eNB.
  • the UE is shown to transmit a D2D communication signal, which indicates that the UE transmits a cellular communication signal.
  • the UE receives the D2D communication data signal transmitted by the D2D communication peer UE1, and receives the cellular communication data signal of the eNB.
  • the UE receives a signal carrying cellular communication data from the eNB; on slot #1, the UE receives a signal from the UE 1 carrying the D2D communication data.
  • the UE receives the control data signal of the eNB on the pre-configured resource of slot #0, where the control data of the cellular communication of the UE and the scheduling information of the D2D communication are included; the eNB configuration of the UE in slot #1 Receiving UE on PRB for D2D communication
  • the D2D communication data signal of 1 includes D2D service data, as shown in FIG. 13, which indicates that the UE receives the cellular communication signal, and indicates that the UE receives the D2D communication signal.
  • the D2D communication and the cellular communication divide the resources by frequency division.
  • the UE occupies all the PRBs of the D2D frequency band to the D2D communication opposite end on a slot of the D2D subframe obtained by the UE.
  • the UE 1 transmits a D2D communication data signal; on the other slot, receives all PRBs of the D2D band, which carry the D2D communication data signal from the UE 1. For example, on slot #0, the UE transmits a signal carrying D2D communication data to UE 1; on slot #1, the UE receives a signal from UE 1 carrying D2D communication data.
  • the UE transmits on the first slot and converts to receive on the second slot, and the UE needs a certain conversion time from the transmitting state to the receiving state, that is, Between slot #0 and slot #1, the UE needs a transition time Gap from the transmitting state to the receiving state.
  • the system uses the Normal CP as an example.
  • the UE transmits the signal on slot#0 and performs state transition on the last symbol of slot#0.
  • the symbol #6 on slot#0 cannot carry data as Gap.
  • the effective transmission symbols of the UE include symbols #0 to #5; on slot #1, the UE performs data reception, and symbols #7 to #13 are all valid reception symbols, as shown in FIG. 14, the CD area indicated A valid transmitted symbol, the port area indicated represents Gap, and the ⁇ area represents a valid received symbol.
  • the D2D communication and the cellular communication divide the resources in a time division manner.
  • the UE transmits a D2D communication data signal to the two D2D communication peer UEs 1 and 2, and in the slot #0, the UE A signal carrying D2D communication data is transmitted to UE 1; on slot #1, the UE transmits a signal carrying D2D communication data to UE 2.
  • the previous subframe and the subsequent subframe of the current D2D subframe are cellular communication subframes, and the UE needs to remain in the receiving state on the cellular communication subframe. Therefore, the UE performs a transition from a receiving state to a transmitting state and a transition from a transmitting state to a receiving state within the D2D subframe. Therefore, the first symbol of slot #0 and the last symbol of slot #1 need to be Gap and cannot carry D2D communication data.
  • the UE transmits a signal on slot #0, where symbol #0 is used as Gap, and effective transmission symbol includes symbol #1 to symbol #5; on slot#l, symbol
  • the effective transmission symbol includes the symbol #6 to the symbol #10, as shown in Fig. 15, the d area indicates the effective transmission symbol, as shown in Fig. 1 area indicates Gap.
  • D2D communication and cellular communication use frequency division + time division to divide resources.
  • the UE and the D2D communication peer UE 1 transmit D2D communication data signals, when the D2D communication data requirements are not When symmetrical, it can be transmitted on an idle slot Cellular communication data signal.
  • the UE receives the D2D communication data signal from the UE 1 on the PRB of the D2D subframe slot #0 configured as the D2D resource, and the UE only receives the UE because the D2D communication data requirement between the UE and the UE 1 is asymmetric.
  • D2D communication data of 1 without transmitting data to UE 1 therefore, on the current D2D subframe, the UE may transmit a cellular communication data signal to the eNB using slot #1, and carry the UE on the Macro PRB configured for cellular communication by the eNB.
  • the cellular communication data with the eNB is transmitted.
  • the UE receives on slot #0 and converts to transmit on slot #1, the UE needs a certain conversion time from the receiving state to the transmitting state, that is, in slot#0 and slot#l. In the meantime, the UE needs the conversion time Gap from the receiving state to the transmitting state, and the Gap can be set to the last symbol of slot #0, as shown in FIG. 16 (a), or Gap can also be set as the first of slot #1. Symbols, as shown in Figure 16 (b).
  • the system supports D2D communication in the uplink frequency band
  • the UE has cellular communication data transmission with the eNB in the previous subframe of the current D2D subframe
  • the UE After the UE ends the signal transmission of the previous cellular communication subframe to the eNB, It needs to be converted to the receiving state to receive the D2D signal on the D2D subframe slot #0. Therefore, the first symbol #0 of the D2D subframe slot #0 is used as the conversion Gap from the transmitting state to the receiving state, as shown in Fig. 16 (a), (b). ) shown.
  • the UE first converts from the transmitting state to the receiving state in slot #0, and receives the D2D signal of UE 1, and performs the receiving state in symbol #6 of slot #0 or symbol #7 of slot#1.
  • the transition of the transmit state, and the data signal of the cellular communication is transmitted to the eNB at slot #1.
  • the effective reception symbols of the UE are symbols #1 to #5, and the effective transmission symbols are symbols #7 to #13; in the case of Fig. 16 (b), the valid reception symbols of the UE are Symbol #1 to symbol #6, effective transmission symbols are symbols #8 to #13.
  • the ⁇ area shown represents the effective D2D communication reception symbol
  • the port area shown represents Gap
  • the ER area shown represents the effective cellular communication transmission symbol.
  • the embodiment of the present invention further provides a D2D communication data transmission system. As shown in FIG. 17, the system includes a UE 1701. The UE 1701 performs independent data transmission on two slots of the D2D subframe. Transmission includes: transmission of data and/or reception of data.
  • the UE 1701 transmits a signal on slot #0 and receives a signal on slot #1; or, receives a signal on slot #0, and transmits a signal on slot #1; or, respectively, in slot #0 and
  • the slot #1 transmits signals to different nodes; or, receives signals from different nodes on slots #0 and slot #1; wherein the signals carry D2D communication data or cellular communication data.
  • the UE 1701 further includes: a data transmitting module 1801 and a data receiving module 1802;
  • the data transmitting module 1801 transmits a signal on slot #0; or, transmits a signal on slot #1; or transmits a signal to different nodes on slot #0 and slot #1;
  • the data receiving module 1802 receives a signal on slot #1; or, receives a signal on slot #0; or receives signals from different nodes on slot #0 and slot #1, respectively.
  • the data transmitting module 1801 transmits a signal on all or part of the physical resource block PRB of the slot #0 or the slot #1, where all or part of the PRBs are configured by the network side or obtained by the UE through competition. Or, the PRB used by the UE to receive signals on slot #1 or slot #0.
  • the data receiving module 1802 receives signals on all or part of the PRBs of the slot #1 or the slot #0, where all or part of the PRBs are configured by the network side, or are obtained by the UE, or are UEs.
  • the data transmitting module 1801 and the data receiving module 1802 can pass through a central processing unit (CPU), a digital signal processor (DSP) or a programmable logic array (Field) in the UE 1701. - Programmable Gate Array, FPGA) implementation.
  • CPU central processing unit
  • DSP digital signal processor
  • Field programmable logic array
  • the system further includes: a D2D communication peer UE 1702 and a network side 1703, respectively performing Data transmission between UEs.
  • the network side includes one or more of the following entities: an eNB, an MCE, a GW, an MME, an EUTRAN, and an OAM manager.
  • the embodiment of the present invention further provides a UE, where the UE is a UE in the D2D communication data transmission system described above.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the invention can take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte à un procédé de transmission de données de communication de dispositif à dispositif (D2D). Le procédé selon l'invention comprend les étapes suivantes : un équipement d'utilisateur (UE) exécute respectivement une transmission indépendante de données sur deux tranches de temps d'une sous-trame D2D, la transmission de données comprenant : la transmission de données; et/ou la réception de données. La présente invention se rapporte d'autre part à un système de transmission de données de communication D2D, et à un UE.
PCT/CN2014/070585 2013-02-07 2014-01-14 Procédé de transmission de données de communication de dispositif à dispositif, système correspondant, et équipement d'utilisateur WO2014121679A1 (fr)

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CN201310049663.8A CN103987026B (zh) 2013-02-07 2013-02-07 一种设备到设备通信数据传输方法、系统和用户设备
CN201310049663.8 2013-02-07

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