WO2015062475A1 - D2d信号的传输方法和装置 - Google Patents

D2d信号的传输方法和装置 Download PDF

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Publication number
WO2015062475A1
WO2015062475A1 PCT/CN2014/089684 CN2014089684W WO2015062475A1 WO 2015062475 A1 WO2015062475 A1 WO 2015062475A1 CN 2014089684 W CN2014089684 W CN 2014089684W WO 2015062475 A1 WO2015062475 A1 WO 2015062475A1
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Prior art keywords
signal
synchronization
discovery
resource configuration
communication
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PCT/CN2014/089684
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English (en)
French (fr)
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陈文洪
高秋彬
彭莹
赵锐
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Priority to JP2016527230A priority Critical patent/JP6275252B2/ja
Priority to KR1020167014592A priority patent/KR101811359B1/ko
Priority to US15/031,116 priority patent/US9826494B2/en
Priority to EP14856948.6A priority patent/EP3065497B1/en
Publication of WO2015062475A1 publication Critical patent/WO2015062475A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/003—Arrangements to increase tolerance to errors in transmission or reception timing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for transmitting a D2D signal.
  • FIG. 1 shows the manner of data communication between two terminals in a conventional cellular communication technology.
  • services such as voice and data of two terminals interact with each other by an evolved Node B (hereinafter referred to as eNB) and a core network (SGW/PGW).
  • eNB evolved Node B
  • SGW/PGW core network
  • the communication method implemented by the device-to-device (hereinafter referred to as D2D) is different from the communication method shown in FIG. 1.
  • D2D device-to-device
  • adjacent terminals can perform data transmission through a direct link in a short range without forwarding through a central node (ie, a base station). Due to the short-range communication characteristics and direct communication methods of D2D technology, it has the following advantages:
  • the terminal short-distance direct communication mode can achieve higher data rate, lower delay and lower power consumption
  • the direct communication mode of the D2D can adapt to the local data sharing requirements of services such as a peer-to-peer network (P2P), and provide a data service with flexible adaptability;
  • P2P peer-to-peer network
  • D2D direct communication can utilize a large number of widely distributed communication terminals in the network to expand the coverage of the network.
  • the LTE D2D technology refers to a D2D discovery and communication process controlled by an LTE network operating on a licensed band of Long Term Evolution (hereinafter referred to as LTE).
  • LTE D2D technology can give full play to the original advantages of D2D technology, and the control of LTE network can also overcome some problems of traditional D2D technology, such as uncontrollable interference.
  • the introduction of the LTE D2D feature will enable the LTE technology to evolve from a purely wireless mobile cellular communication technology to a Universal Connectivity Technology (hereinafter referred to as UCT).
  • UCT Universal Connectivity Technology
  • the LTE D2D technology includes two aspects: D2D discovery and D2D communication.
  • the D2D communication refers to a D2D user equipment (hereinafter referred to as UE) to discover other D2D UEs in the vicinity.
  • the D2D communication refers to the D2D UE and other D2D UEs.
  • Communication transmission Whether it is discovery or communication, it is necessary to perform D2D signal transmission and reception based on synchronization between UEs.
  • a synchronization reference also referred to as a timing reference
  • All UEs within the coverage obtain a synchronization reference according to the synchronization signal sent by the base station.
  • a cluster head is needed to transmit the synchronization signal, and the synchronization function provided by the base station is performed, so that other UEs in the cluster can obtain the same synchronization reference according to the synchronization signal.
  • FIG. 3 to 5 show scenarios of three D2D transmissions, wherein FIG. 3 shows a manner of D2D transmission in a scene with network coverage, and FIG. 4 shows a manner of D2D transmission in a scene without network coverage. 5 shows the manner of D2D transmission in a scene covered by part of the network. It can be seen from FIG. 3 to FIG. 5 that in any scenario, the D2D UE may receive D2D signals sent by UEs from multiple cells or multiple clusters, and therefore needs to be transmitted according to the D2D of the cell or cluster in which the UEs are located. Timing and D2D resource configuration to receive the corresponding D2D signal.
  • the UE Prior to this, the UE first obtains the synchronization reference and D2D resource configuration information of the D2D signals of different cells or clusters.
  • the resource configuration information of the serving cell or the cluster where the UE is located may be indicated by the base station or the cluster head.
  • the D2D resource configuration information of the local cell is generally notified by the base station.
  • the UE there is currently no method for the UE to obtain D2D resource configuration information of other cells or other clusters. In this way, when there is no network coverage and the cluster head has no resource allocation capability, resource allocation and notification cannot be performed by the cluster head.
  • the UE can only use fixed resources, which causes the D2D resources between the clusters to be the same, which easily cause mutual interference.
  • the present invention provides a method and apparatus for transmitting a D2D signal, so that the UE can learn the D2D resource configuration according to the synchronization signal and/or the D2D signal, in order to solve the problem of the transmission efficiency and the quality degradation caused by the UE transmitting the D2D signal using the fixed resource. Avoid the problem of using fixed resources, thus reducing mutual interference.
  • a method of transmitting a D2D signal is provided.
  • the method comprises: detecting a synchronization signal and/or a D2D signal, determining a synchronization reference for transmitting or receiving other D2D signals according to the synchronization signal and/or the D2D signal; determining D2D according to the information of the detected synchronization signal and/or the D2D signal Resource configuration; determining, according to the determined synchronization reference for transmitting or receiving other D2D signals, and the determined D2D resource configuration, the resource location used for transmitting the D2D signal, and transmitting or receiving other D2D signals at the resource location.
  • the synchronization reference includes one of the following:
  • Timing synchronization reference frequency synchronization reference.
  • determining a synchronization reference for transmitting or receiving other D2D signals includes at least one of the following:
  • the radio frame number is obtained based on the information carried by the synchronization channel in the synchronization signal.
  • determining the D2D resource configuration includes:
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence identifier used to generate a discovery sequence or a communication synchronization sequence, a sequence type used for discovering a sequence or a communication synchronization sequence, a sequence used for a discovery sequence, or a communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following:
  • the at least one of the following includes: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the above correspondence is obtained in advance from a base station or a cluster head UE, or obtained by a pre-agreed method.
  • the correspondence relationship includes at least one of the following:
  • the D2D resource configuration can be determined directly based on the discovery message in the detected D2D discovery signal or the D2D resource configuration information included in the communication message in the D2D communication signal.
  • transmitting or receiving D2D signals at resource locations includes:
  • the foregoing process for determining a D2D resource configuration includes:
  • the D2D signal includes at least one of the following: a D2D discovery signal, and a D2D communication signal.
  • the D2D resource configuration includes at least one of the following: a D2D discovery resource configuration, and a D2D communication resource configuration.
  • the D2D resource configuration includes at least one of the following information: physical resource configuration, physical resource unit, number of transmissions in a single cycle, probability of D2D signal transmission, sequence information used by the D2D signal, and scrambling used by the D2D signal.
  • Information CP length of the D2D signal.
  • a transmission apparatus for a D2D signal is provided.
  • the transmission device of the D2D signal includes: a first determining module for detecting a synchronization signal and/or a D2D signal, determining a synchronization reference for transmitting or receiving other D2D signals according to the synchronization signal and/or the D2D signal; and a second determining module And determining, by the information carried by the detected synchronization signal and/or the D2D signal, a D2D resource configuration, and a transmission module, configured to determine, according to the determined synchronization reference for transmitting or receiving other D2D signals, and the determined D2D resource configuration.
  • the synchronization reference includes one of the following: a timing synchronization reference and a frequency synchronization reference.
  • the first determining module is configured to determine, by using at least one of the following manners, a synchronization reference for transmitting or receiving other D2D signals:
  • the radio frame number is obtained based on the information carried by the synchronization channel in the synchronization signal.
  • the second determining module is configured to determine a D2D resource configuration according to the information carried by the synchronization signal and/or the D2D signal, and the correspondence between the previously obtained information and the D2D resource configuration; or, the second Determining, by the determining module, the physical resource used for the D2D transmission according to the information carried by the synchronization signal, and determining the D2D resource configuration according to the physical resource; or the second determining module is configured to directly include the detected D2D signal
  • the D2D resource configuration information determines the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence comprises at least one of the following: a sequence identification used to generate a discovery sequence or a communication synchronization sequence, a sequence type used for discovering a sequence or a communication synchronization sequence, a sequence used for a discovery sequence or a communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, a cell ID of a cell where the UE is located, a cluster ID of a cluster where the UE is located, a D2D application ID, a D2D resource configuration indication information, a generation discovery message, or a communication.
  • the sequence identifier used by the DMRS sequence of the message; wherein the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the above correspondence is obtained in advance from a base station or a cluster head UE, or obtained by a pre-agreed method.
  • the correspondence relationship includes at least one of the following:
  • the second determining module is configured to determine the D2D resource configuration directly according to the discovery message in the detected D2D discovery signal or the D2D resource configuration information included in the communication message in the D2D communication signal.
  • the manner in which the transmission module performs transmission or reception of the D2D signal at the resource location includes:
  • the second determining module determines a D2D resource configuration of the UE that transmits the synchronization signal and/or the D2D signal; or the second determining module determines the D2D resource configuration of the system.
  • the D2D signal includes at least one of the following: a D2D discovery signal, and a D2D communication signal.
  • the D2D resource configuration includes at least one of the following: a D2D discovery resource configuration, and a D2D communication resource configuration.
  • the D2D resource configuration includes at least one of the following information: physical resource configuration, physical resource unit, number of transmissions in a single cycle, probability of D2D signal transmission, sequence information used by the D2D signal, scrambling information used for the D2D signal, CP length of the D2D signal.
  • another D2D signal transmission apparatus is provided.
  • a transmission device for a D2D signal includes: a processor for reading a program in a memory, executing Column process:
  • Detecting a synchronization signal and/or a D2D signal determining a synchronization reference for transmitting or receiving other D2D signals according to the synchronization signal and/or the D2D signal; determining a D2D resource configuration according to the information carried by the detected synchronization signal and/or other signals; Determining a synchronization reference for transmitting or receiving other D2D signals, and determining a D2D resource configuration, determining a resource location for transmitting the D2D signal, and transmitting or receiving other D2D signals through the transceiver at the resource location;
  • a transceiver for receiving and transmitting data under the control of the processor.
  • the synchronization reference may include one of the following: a timing synchronization reference and a frequency synchronization reference.
  • the processor is configured to determine, by using at least one of the following manners, a synchronization reference for transmitting or receiving other D2D signals:
  • the radio frame number is obtained based on the information carried by the synchronization channel in the synchronization signal.
  • the processor when determining the D2D resource configuration, is configured to determine a D2D resource configuration according to the information carried by the synchronization signal and/or the D2D signal, and the correspondence between the previously obtained information and the D2D resource configuration; or, the second determining module is configured according to The information carried by the synchronization signal determines a physical resource used for the D2D transmission, and determines the D2D resource configuration according to the physical resource; or the second determining module is configured to directly receive the D2D resource included in the detected D2D signal. Configuration information to determine the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence comprises at least one of the following: a sequence identification used to generate a discovery sequence or a communication synchronization sequence, a sequence type used for discovering a sequence or a communication synchronization sequence, a sequence used for a discovery sequence or a communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, and a UE a sequence identifier used by the cell ID of the cell, the cluster ID of the cluster where the UE is located, the D2D application ID, the D2D resource configuration indication information, the DMRS sequence for generating the discovery message or the communication message; wherein the D2D resource configuration indication information includes at least one of the following: The D2D discovery resource configuration indication information and the D2D communication resource configuration indication information.
  • the above correspondence is obtained in advance from a base station or a cluster head UE, or obtained by a pre-agreed device.
  • the correspondence relationship includes at least one of the following:
  • the processor is configured to determine the D2D resource configuration directly according to the discovery message in the detected D2D discovery signal or the D2D resource configuration information included in the communication message in the D2D communication signal.
  • the manner in which the processor transmits or receives the D2D signal through the transceiver at the resource location includes:
  • the transceiver performs D2D signal transmission or reception; or
  • the D2D signal includes at least one of the following: a D2D discovery signal, and a D2D communication signal.
  • the D2D resource configuration includes at least one of the following: a D2D discovery resource configuration, and a D2D communication resource configuration.
  • the D2D resource configuration includes at least one of the following information: physical resource configuration, physical resource unit, and single The number of transmissions in a cycle, the probability of D2D signal transmission, the sequence information used for the D2D signal, the scrambling information used for the D2D signal, and the CP length of the D2D signal.
  • the present invention enables the UE to learn the D2D resource configuration according to the synchronization signal and/or the D2D signal, thereby preventing the UE from using fixed resources when transmitting the D2D signal, thereby reducing mutual interference and improving transmission efficiency and quality.
  • FIG. 1 is a data flow structure diagram of terminal communication in a cellular network in the prior art
  • FIG. 3 is a structural diagram of a D2D transmission scenario with network coverage in the prior art
  • FIG. 5 is a structural diagram of a D2D transmission scenario of partial network coverage in the prior art
  • FIG. 6 is a flowchart of a method of transmitting a D2D signal according to an embodiment of the present invention.
  • FIG. 7 is a block diagram of a transmission apparatus of a D2D signal according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a computer capable of implementing the technical solution according to the present invention.
  • FIG. 9 is a block diagram of another D2D signal transmission apparatus according to an embodiment of the present invention.
  • a method of transmitting a D2D signal is provided.
  • a method for transmitting a D2D signal includes:
  • Step S601 detecting a synchronization signal and/or a D2D signal, and determining, according to the synchronization signal and/or the D2D signal, a synchronization reference for transmitting or receiving other D2D signals (which may also be referred to as a timing reference);
  • Step S603 determining D2D resource configuration according to the information about the detected synchronization signal and/or the D2D signal;
  • Step S605 determining, according to the determined synchronization reference for transmitting or receiving other D2D signals, and the determined D2D resource configuration, determining a resource location for transmitting the D2D signal, and transmitting or receiving other D2D signals at the resource location.
  • the D2D signal may include a D2D discovery signal and/or a D2D communication signal.
  • the synchronization signal and/or the D2D signal used to determine the D2D resource configuration in step S603 may correspond to the synchronization signal and/or the D2D signal used to determine the synchronization reference in step S601, respectively, or may be different.
  • the synchronization reference may be determined by using the synchronization signal, which may be passed in step S603.
  • a D2D signal (eg, a D2D communication signal or a D2D discovery signal) determines a resource configuration.
  • the other D2D signals mentioned in the step S601 and the step S605 are different from the foregoing D2D signals, and may be other D2D signals sent by the UE transmitting the D2D signal, or may be D2D signals sent by other UEs, or may be subsequent The received D2D signal; and, for receiving the D2D signal, may be a D2D signal of the serving cell where the UE is located, or may be a D2D signal of the non-serving cell.
  • the synchronization signal may include a synchronization sequence for obtaining a subframe start position and a subframe number, and may further include a synchronization channel for obtaining a radio frame number, so that the synchronization reference can be determined based on the synchronization signal.
  • the synchronization reference may be determined not only based on the detection of the synchronization signal, but also based on the detection of the D2D signal (eg, the D2D discovery signal), and may also be determined in conjunction with the detection of the synchronization signal and the D2D signal.
  • the determined synchronization reference includes a timing synchronization reference, and/or a frequency synchronization reference.
  • the process of determining a synchronization reference for transmitting or other receiving D2D signals may include at least one of the following:
  • the radio frame number is obtained based on the information carried by the synchronization channel in the synchronization signal.
  • the subframe number when determining the synchronization reference according to the D2D signal, may be uncertain.
  • the subframe start position may be obtained according to the discovery sequence in the D2D discovery signal, thereby serving as a synchronization reference, in an indeterminate subframe.
  • the D2D signal is received in the case of numbering.
  • the resource configuration described herein may include resource configuration of the D2D discovery signal (ie, D2D discovery resource configuration), and/or resource configuration of the D2D communication (ie, D2D communication resource configuration).
  • the D2D resource configuration of the UE that sends the synchronization signal and/or the D2D signal may be determined according to the detected synchronization signal and/or the information carried by the D2D signal, or may be based on the detected synchronization signal. And/or the information carried by the D2D signal to determine the D2D resource configuration of the system. That is to say, the determined resource configuration may be either one UE or the entire system, where the D2D resource configuration of the system may be a D2D resource configuration of all UEs of one cell, or may be a D2D resource configuration of all cells.
  • the D2D resource configuration may include at least one of the following: a physical resource configuration (such as a time domain resource and a frequency domain resource configuration occupied by the D2D signal, including a frequency hopping pattern); a physical resource unit; The amount of resources occupied by the communication resources; the number of transmissions in a single cycle; the probability of D2D signal transmission, the sequence information used by the D2D signal, the scrambling information used by the D2D signal, and the CP length of the D2D signal.
  • a physical resource configuration such as a time domain resource and a frequency domain resource configuration occupied by the D2D signal, including a frequency hopping pattern
  • a physical resource unit The amount of resources occupied by the communication resources; the number of transmissions in a single cycle; the probability of D2D signal transmission, the sequence information used by the D2D signal, the scrambling information used by the D2D signal, and the CP length of the D2D signal.
  • the D2D resource configuration is determined based on the information carried by the synchronization signal and/or the D2D signal, and the correspondence between the previously obtained information and the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used to generate a synchronization sequence in the synchronization signal (the sequence identifier can be obtained by the cell ID of the cell where the UE is located, or the cluster ID of the cluster where the UE is located), and the synchronization sequence.
  • TDD time division duplex
  • the information carried by the D2D communication signal may be carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; and for the D2D communication signal, the information carried by the D2D communication signal is synchronized by the communication in the D2D communication signal.
  • the communication message in the sequence and/or D2D communication signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence identifier used to generate a discovery sequence or a communication synchronization sequence (the sequence identifier may be a cell ID of a cell where the UE is located, or a cluster where the UE is located) The cluster ID), the sequence type used for the discovery sequence or the communication synchronization sequence, the discovery sequence or the cyclic shift used by the communication synchronization sequence, and the like;
  • the information carried by the discovery message or the communication message includes at least one of the following: the D2D ID of the UE, a sequence identifier used by a cell ID of a cell in which the UE is located, a cluster ID of a cluster in which the UE is located, a D2D application ID, a D2D resource configuration indication information, a Demodulation Reference Signal (DMRS) sequence for generating a discovery message or a communication message;
  • the D2D resource configuration indication information includes at least one of the following: D2D
  • one of the corresponding parties is a D2D resource configuration
  • the other party may include the information carried by the synchronization signal, the information carried by the discovery sequence, the information carried by the discovery message, the information carried by the communication sequence, and the communication message carried. Any of the information in the information may also include a combination of the plurality of information listed previously.
  • the UE determines the D2D resource configuration according to the sequence identifier determined by the sequence of the detected synchronization signals and the correspondence between the predetermined sequence identifier and the D2D resource configuration; in another embodiment, the UE Determining a D2D resource configuration according to the sequence identifier determined by the discovery sequence in the detected D2D discovery signal and the correspondence between the predetermined sequence identifier and the D2D resource configuration; in another embodiment, the UE is found according to the detected D2D The D2D ID included in the discovery message in the signal, and the correspondence between the predetermined D2D ID and the D2D discovery resource configuration, determining the D2D discovery resource configuration; in another embodiment, the UE is found according to the detected D2D discovery signal.
  • the D2D resource configuration indication information included in the message and the corresponding correspondence between the D2D resource configuration indication information and the D2D resource configuration, determine the D2D resource configuration; and the specific embodiments listed herein may also be combined with each other, and may also be combined with Other embodiments not listed are combined.
  • the above correspondence is obtained in advance from the base station or the cluster head UE, or obtained by a predetermined method.
  • the correspondence relationship includes at least one of the following:
  • the base station of the local cell may perform the interaction of the D2D resource configuration information with other base stations to obtain the synchronization signal of the other cell or the correspondence between the information carried by the D2D signal and the D2D resource configuration, thereby notifying the UE; and, the cluster head UE may The D2D resource configuration information is exchanged with other cluster head UEs to obtain a synchronization signal of the other cluster or a correspondence between the information carried by the D2D signal and the D2D resource configuration, thereby notifying the UE.
  • the D2D resource configuration is determined directly based on the D2D resource configuration information included in the detected D2D signal.
  • the D2D signal includes: a D2D discovery signal and/or a D2D communication signal, when determining the D2D resource configuration according to the present manner, directly according to the D2D resource included in the discovery message in the detected D2D discovery signal or the communication message in the D2D communication signal.
  • Configuration information to determine the D2D resource configuration For example, for the D2D discovery signal, the D2D resource configuration is not carried in the D2D discovery signal in a manner corresponding to a specific information, but directly carries the D2D resource configuration in the D2D discovery signal.
  • the UE does not need to rely on determining the D2D resource configuration.
  • the corresponding relationship in the mode 1 described above may be directly read by the content carried in the D2D discovery signal.
  • the UE may determine the D2D discovery resource configuration according to the discovery resource configuration information included in the discovery message in the D2D discovery signal.
  • the D2D configuration can also be determined in a similar manner.
  • Mode 3 determining a physical resource used for D2D transmission according to information carried by the synchronization signal, and determining the D2D resource configuration according to the physical resource.
  • the physical resources that can be used for D2D transmission are determined according to the information carried by the synchronization signal, thereby determining the D2D resource configuration.
  • the UE determines, according to the TDD uplink and downlink configuration information carried in the synchronization signal, that the uplink subframe can be used for D2D transmission, thereby determining the D2D resource configuration.
  • the UE determines, according to system bandwidth information carried in the synchronization signal, that only resources within the system bandwidth can be used for D2D transmission, thereby determining D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used to generate a synchronization sequence in the synchronization signal (the sequence identifier can be obtained by the cell ID of the cell where the UE is located, or the cluster ID of the cluster where the UE is located), and the synchronization sequence.
  • the information carried by the D2D communication signal may be carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; and for the D2D communication signal, the information carried by the D2D communication signal is synchronized by the communication in the D2D communication signal.
  • the communication message in the sequence and/or D2D communication signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence used to generate a discovery sequence or a communication synchronization sequence.
  • the sequence identifier may be the cell ID of the cell where the UE is located, or the cluster ID of the cluster in which the UE is located), the sequence type used for the discovery sequence or the communication synchronization sequence, the discovery sequence, or the cyclic shift used by the communication synchronization sequence;
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, a cell ID of a cell where the UE is located, a cluster ID of a cluster where the UE is located, a D2D application ID, D2D resource configuration indication information, a generation discovery message, or a communication message.
  • the sequence identifier used by the DMRS sequence where the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the UE After determining the synchronization reference and the D2D resource configuration by the above processing, the UE can determine the resource location used for transmitting the D2D signal, and then transmit or receive the D2D signal at the resource location.
  • the UE may obtain a resource location for transmitting and/or receiving the D2D signal according to the synchronization reference determined based on the synchronization signal and the D2D resource configuration determined by the information carried by the synchronization signal, and according to the resource location. Perform D2D signal transmission or reception.
  • the UE may obtain resources for transmitting and/or receiving D2D signals according to a synchronization reference determined based on a discovery sequence in the D2D discovery signal and a D2D resource configuration determined by information carried by the D2D discovery signal. Position, send or receive D2D signals.
  • the UE may obtain a D2D resource configuration for transmitting and/or receiving a D2D signal according to a synchronization reference determined based on a communication synchronization sequence in the D2D communication signal and a D2D resource configuration determined by information carried by the D2D communication signal. Resource location for D2D signal transmission or reception.
  • the UE may obtain the transmit and/or receive D2D according to the synchronization reference determined based on the synchronization signal, and the D2D resource configuration determined by the information carried by the D2D discovery signal and/or the information carried by the D2D communication signal. The location of the resource used by the signal for D2D signal transmission or reception.
  • the UE may obtain the transmission and/or according to the synchronization reference determined based on the discovery sequence and the synchronization signal in the D2D discovery signal, and the D2D resource configuration determined by the synchronization signal or the information carried by the D2D discovery signal. Or receive the resource location used by the D2D signal for D2D signal transmission or reception.
  • the UE may obtain a transmission sum according to a synchronization reference determined based on the communication synchronization sequence and the synchronization signal in the D2D communication signal, and a D2D resource configuration determined by the synchronization signal or the information carried by the D2D communication signal. / or receive the resource location used by the D2D signal for D2D signal transmission or reception.
  • the transmission and detection of the D2D signal can be implemented, so that the UE can acquire the timing and resource information required for receiving the D2D signals of different cells or clusters through the synchronization signal or the D2D signal, and can also obtain the method by using this method.
  • the timing and resource information of the cell or cluster is then D2D transmitted.
  • Example 1 It is assumed that the UE is within the coverage of the base station and is a D2D UE.
  • the base station performs information exchange with the neighboring base station to obtain a cell ID and a D2D resource configuration of the coverage cell of the neighboring base station.
  • the corresponding relationship between the cell ID and the D2D resource configuration is generated, and the UE is notified by using downlink control signaling or broadcast;
  • the D2D resource configuration herein may be a D2D discovery resource configuration or a D2D communication resource configuration. For example, see the correspondence shown in Table 1:
  • Cell ID D2D resource configuration Service cell ID Cycle 1, subframe configuration 1 Cell ID2 Cycle 2, subframe configuration 2 Cell ID3 Cycle 3, subframe configuration 3
  • the UE detects a synchronization signal of the multiple cells based on different cell IDs, and determines a synchronization reference for receiving the D2D signal of the corresponding cell according to the downlink timing obtained by the synchronization signal of each cell; the D2D signal corresponds to the D2D resource configuration, that is, when the D2D resource is configured as When the D2D discovery resource is configured, this is a synchronization reference of the D2D discovery signal; when the D2D resource is configured as a D2D communication resource configuration, this is a synchronization reference of the D2D communication signal;
  • the UE obtains the cell ID of each cell by detecting the synchronization signal of each cell, and the cell ID is a sequence identifier determined by the sequence used by the synchronization signal, and the method is the same as the downlink synchronization of the LTE. And determining, according to the correspondence between the previously obtained cell ID and the D2D resource configuration, the D2D resource configuration of each cell; for example, detecting that the ID of the cell A where the certain transmission synchronization signal A is located is the cell ID2, determining the D2D resource of the cell. Configured as cycle 2, subframe configuration 2.
  • the UE determines, according to the determined synchronization reference of the D2D signal of each cell, and the D2D resource configuration of the corresponding cell, the physical resource used for receiving the D2D signal of each cell, and receives the D2D signal on the corresponding resource. For example, the UE determines the synchronization reference of the cell A according to the synchronization signal A, obtains the subframe start position and the subframe number of the cell A, and then according to the cell A obtained by the synchronization signal A, that is, the D2D resource configuration of the cell ID2, with the period 2 The D2D signal of the cell A is received in a subframe corresponding to the subframe configuration 2 for the period.
  • Example 2 It is assumed that the UE is outside the coverage of the base station and is a D2D UE.
  • Each UE pre-arranges the correspondence between the cluster ID and the D2D resource configuration.
  • the D2D resource here may be a resource for D2D discovery or a resource for D2D communication;
  • the UE detects the synchronization signals of the multiple clusters based on different cluster IDs, and determines the synchronization reference of the D2D signals of the corresponding clusters according to the downlink timing obtained by the synchronization signals of the clusters;
  • the D2D signals here correspond to the D2D resource configurations, that is, when the D2D resource configuration When the D2D discovery resource is configured, this is a synchronization reference of the D2D discovery signal; when the D2D resource is configured as a D2D communication resource configuration, this is a synchronization reference of the D2D communication signal;
  • the UE obtains the cluster ID of each cluster by detecting the synchronization signals of the clusters, and the cluster ID is a sequence identifier determined by the sequence used by the synchronization signal, and the method is similar to the downlink synchronization of LTE.
  • the D2D resource configuration of each cluster is determined; for example, when the cluster ID of a cluster A transmitting a synchronization signal A is detected as k, it is determined that the D2D resource of the cluster is configured as a period T, and the D2D subframe index N used is satisfied.
  • N mod3 k mod3;
  • Example 3 It is assumed that the UE is within the coverage of the base station and is a D2D UE.
  • the base station performs information exchange with the neighboring base station, and obtains a sequence ID used by the UE in the cell that is covered by the neighboring base station to generate a discovery sequence and a D2D discovery resource configuration of the corresponding cell, thereby generating a correspondence between the discovery sequence ID and the D2D discovery resource configuration, and
  • the control signaling or broadcast notifies the UE; for example, refer to the correspondence shown in Table 2: (the sequence ID can be the same as the cell ID)
  • Sequence ID D2D resource configuration Sequence ID1 Bandwidth configuration 1, discovery period 1, discovery subframe configuration 1 Sequence ID2 Bandwidth configuration 2, discovery period 2, discovery subframe configuration 2 Sequence ID3 Bandwidth configuration 3, discovery period 3, discovery subframe configuration 3
  • the UE detects the D2D discovery signals from different UEs according to the different sequence IDs and the corresponding bandwidth configurations, and determines the synchronization reference of the D2D discovery signals received by the corresponding UE or other UEs in the cell where the UE is located according to the timing obtained by the discovery sequence in the D2D discovery signal;
  • the UE obtains the sequence ID used by the UE to generate the discovery sequence by detecting the discovery sequence in the D2D discovery signal of each UE. And determining, according to the corresponding relationship between the discovery sequence ID and the D2D discovery resource configuration, the D2D discovery resource configuration used by the corresponding UE or other UEs in the cell where the UE is located to send the D2D discovery signal; for example, detecting the discovery sequence in a D2D discovery signal. If the sequence ID is the sequence ID1, it is determined that the D2D discovery resource of the UE or the cell where the UE is located is configured as the bandwidth configuration 1, the discovery period is 1, and the subframe configuration 1 is found.
  • the UE determines, according to the determined synchronization reference of the D2D discovery signal of the UE or the cell where the UE is located, and the D2D discovery resource configuration of the UE or the cell where the UE is located, and determines the D2D discovery signal used by the UE or other UEs in the cell where the UE is located. Physical resources, and receive D2D discovery signals on the corresponding resources.
  • the UE determines the synchronization reference of the UE A according to the D2D discovery signal A, obtains the subframe start position and the subframe number of the UE A, and then configures the D2D resource of the UE A, that is, the UE sequence ID1 obtained by the D2D discovery signal A, to
  • the discovery period 1 is a period of receiving the D2D discovery of the cell A on the bandwidth corresponding to the bandwidth configuration 1 in the subframe corresponding to the discovery subframe configuration 1. signal.
  • the UE detects a D2D discovery signal from a different UE, and determines, according to a timing obtained by the discovery sequence in the D2D discovery signal, a synchronization reference for receiving a D2D discovery signal of the UE of the UE or the UE where the UE is located;
  • the D2D discovery resource configuration used by the corresponding UE or the UE where the UE is located to send the D2D discovery signal, by using the discovery resource configuration information carried in the discovery message in the D2D discovery signal of each UE; for example, using a number of discovery messages
  • the D2D discovery resource of the UE or the cell where the UE is located is configured as bandwidth configuration 1
  • the discovery period is 1
  • the subframe configuration 1 is found
  • the frequency hopping configuration is 1.
  • the UE determines, according to the determined synchronization reference of the D2D discovery signal of the UE or the cell where the UE is located, and the D2D discovery resource configuration of the UE or the cell where the UE is located, and determines the D2D discovery signal used by the UE or the UE where the UE is located. Physical resources, and receiving D2D discovery signals on the corresponding resources. For example, the UE determines the synchronization reference of the cell where the UE A is located according to the discovery sequence in the D2D discovery signal A, obtains the subframe start position and the subframe number of the cell, and then obtains the UE A according to the discovery message in the D2D discovery signal A.
  • the D2D discovery resource configuration of the cell in which the UE is located is determined by using the frequency hopping configuration 1 to determine the physical resources used by the UEs in the cell where the UE A is located.
  • the UE detects synchronization signals from different cells and/or clusters, and determines a synchronization reference for receiving D2D discovery signals of the corresponding cells and/or clusters according to downlink timings obtained by synchronization signals of the respective cells and/or clusters;
  • the UE performs detection of the D2D discovery signal of the cell in a predefined resource range according to the determined synchronization reference for receiving the D2D discovery signal of the corresponding cell and/or the cluster;
  • the UE determines, by using the discovery resource configuration information carried in the discovery message in the D2D discovery signal sent by the cell and/or the cluster UE, the D2D discovery resource configuration used by the UE in the cell and/or cluster of the corresponding UE to send the D2D discovery signal.
  • the discovery message indicates that the D2D discovery resource of the cell and/or the cluster in which the UE is located is configured to discover the subframe configuration 1 and discover the sub-band configuration 1 in the discovery resource configuration information of the number of bits.
  • the UE determines, according to the determined synchronization reference of the D2D discovery signal of each cell and/or cluster, and the D2D discovery resource configuration of the corresponding cell and/or cluster, the physical resource used for receiving the D2D discovery signal of each cell and/or cluster, and The D2D discovery signal is received on the corresponding resource. For example, the UE determines the synchronization reference of the cell and/or the cluster where the UE A is located according to the synchronization signal A, obtains the subframe start position and the subframe number of the cell and/or the cluster, and obtains the discovery message according to the D2D discovery signal A.
  • the D2D discovery resource configuration of the cell and/or the cluster in which the UE A is located to receive the D2D discovery signal sent by the UE in the cell and/or the cluster A on the subband corresponding to the subband configuration 1 in the subframe corresponding to the discovery subframe configuration 1. .
  • Example 6 It is assumed that the UE is outside the coverage of the base station and is a D2D UE.
  • Each UE pre-arranges the correspondence between the cluster ID and the D2D resource configuration.
  • the D2D resource configuration here may be a D2D discovery resource configuration or a D2D communication resource configuration.
  • the UE detects the synchronization signal of the cluster based on different cluster IDs, and determines a synchronization reference for transmitting the D2D signal according to the downlink timing obtained by the synchronization signal of the cluster;
  • the D2D signal here corresponds to the D2D resource configuration, that is, if the D2D resource configuration is a D2D discovery resource.
  • Configuration here is the synchronization reference of the D2D discovery signal; if the D2D resource configuration is the D2D communication resource configuration, here is the synchronization reference of the D2D communication signal;
  • the D2D resource configuration contains the same content as the D2D resource configuration in step 1.
  • the UE determines the physical resource used for transmitting the D2D signal according to the determined synchronization reference of the transmitted D2D signal and the D2D resource configuration of the cluster, and transmits the D2D signal on the corresponding resource. For example, the UE determines to send a synchronization reference according to the synchronization signal A of the cluster, obtains the subframe start position and the subframe number of the cluster, and then satisfies the T2 cycle according to the D2D resource configuration of the cluster obtained by the synchronization signal A.
  • the UE detects D2D communication signals from different UEs, and determines, according to the timing obtained by the communication synchronization sequence in the D2D communication signal, a synchronization reference for receiving the D2D communication signal of the UE of the UE or the UE where the UE is located;
  • the UE determines, by using the detected communication resource configuration information carried in the communication message in the D2D communication signal of each UE, the D2D communication resource configuration used by the corresponding UE or the UE where the UE is located to send the D2D communication signal; for example, in the communication message
  • the D2D communication resource indicating the UE or the cell where the UE is located in the bit communication resource configuration information is configured as bandwidth configuration 1, communication subframe configuration 1, and communication duration 1.
  • the D2D communication resource configuration of the cell in which A is located, and the physical resource used by each UE in the cell where the UE A is located to transmit the D2D communication signal is determined according to the communication duration 1 in the bandwidth corresponding to the bandwidth configuration 1 in the subframe corresponding to the configuration of the communication subframe 1, and the receiving cell is used.
  • the D2D communication signal sent by the UE in A is used.
  • a transmission device for a D2D signal is also provided.
  • the transmission apparatus of the D2D signal includes: a first determining module 71 for detecting a synchronization signal and/or a D2D signal, and determining to transmit or receive other D2D signals according to the synchronization signal and/or the D2D signal.
  • a synchronization determining unit configured to determine a D2D resource configuration according to the information carried by the detected synchronization signal and/or other signals
  • a transmission module 73 configured to send or receive a synchronization reference according to the determined other D2D signals. And determining the D2D resource configuration, determining a resource location for transmitting the D2D signal, and transmitting or receiving other D2D signals at the resource location.
  • the above D2D signal may include at least one of the following:
  • D2D discovery signal D2D communication signal.
  • the above synchronization reference may include one of the following:
  • Timing synchronization reference frequency synchronization reference.
  • the first determining module 71 determines that the manner of transmitting or receiving the synchronization reference of the other D2D signals includes at least one of the following:
  • the radio frame number is obtained based on the information carried by the synchronization channel in the synchronization signal.
  • the second determining module 72 is configured to determine the D2D resource configuration according to the information carried by the synchronization signal and/or the D2D signal, and the correspondence between the previously obtained information and the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence identifier used to generate the discovery sequence or the communication synchronization sequence, a sequence type used for the discovery sequence or the communication synchronization sequence, a cycle used for the discovery sequence or the communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, a cell ID of a cell where the UE is located, a cluster ID of a cluster where the UE is located, a D2D application ID, a D2D resource configuration indication information, and a discovery discovery.
  • the sequence identifier used by the DMRS sequence of the message or the communication message; wherein the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the above correspondence is obtained in advance from the base station or the cluster head UE, or obtained by a predetermined device.
  • the correspondence relationship includes at least one of the following:
  • the second determining module 72 may be further configured to determine the D2D resource configuration directly according to the D2D resource configuration information included in the detected D2D signal.
  • the D2D signal includes a D2D discovery signal and/or a D2D communication signal.
  • the second determining module 72 directly includes the discovery message according to the detected D2D discovery signal or the communication message in the D2D communication signal.
  • the D2D resource configuration information determines the D2D resource configuration.
  • the second determining module 72 when determining the D2D resource configuration, may be further configured to determine, according to information carried by the synchronization signal, physical resources for D2D transmission, and according to the Describe the physical resource, and determine the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence identifier used to generate the discovery sequence or the communication synchronization sequence, a sequence type used for the discovery sequence or the communication synchronization sequence, a cycle used for the discovery sequence or the communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, a cell ID of a cell where the UE is located, a cluster ID of a cluster where the UE is located, a D2D application ID, a D2D resource configuration indication information, a generation discovery message, or a communication.
  • the sequence identifier used by the DMRS sequence of the message; wherein the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the manner in which the transmission module 73 performs transmission or reception of the D2D signal at the resource location includes:
  • the foregoing D2D resource configuration includes at least one of the following:
  • D2D discovery resource configuration D2D communication resource configuration.
  • the second determining module 72 determines the D2D resource configuration of the UE that sends the synchronization signal and/or the D2D signal according to the detected synchronization signal and/or the information carried by the D2D signal; or
  • the second determining module 72 determines the D2D resource configuration of the system according to the information of the detected synchronization signal and/or the D2D signal.
  • the D2D resource configuration includes at least one of the following information: physical resource configuration, physical resource unit, number of transmissions in a single cycle, probability of D2D signal transmission, sequence information used by the D2D signal, scrambling information used for the D2D signal, CP length of the D2D signal.
  • the D2D resource configuration is determined according to the detected synchronization signal or the information carried by the D2D signal, and the D2D signal is performed in combination with the synchronization reference or the synchronization reference determined by the D2D signal. Detecting, so that the UE can acquire timing and resource information required for receiving D2D signals of different cells or clusters through the synchronization signal or the D2D signal, so as to discover UEs belonging to different cells or clusters, and UEs in a certain cluster can also pass the synchronization signal.
  • the D2D resources used by the cluster are known without any additional signaling overhead, and different clusters can use independent physical resources to eliminate mutual interference between resources, thereby improving transmission efficiency and quality.
  • the objects of the invention can also be achieved by running a program or a set of programs on any computing device.
  • the computing device can be a well-known general purpose device.
  • the object of the present invention can also be achieved by merely providing a program product comprising program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It will be apparent that the storage medium may be any known storage medium or any storage medium developed in the future.
  • a storage medium (which may be a ROM, a RAM, a hard disk, a detachable memory, etc.), in which a computer program for performing D2D signal transmission is embedded,
  • the computer program has a code segment configured to perform the steps of: detecting a synchronization signal and/or a D2D signal, determining a synchronization reference for transmitting or receiving other D2D signals based on the synchronization signal and/or the D2D signal; based on the detected synchronization signal and/or Or the information carried by the D2D signal, determine the D2D resource configuration; determine the resource location used for transmitting the D2D signal according to the determined synchronization reference for transmitting or receiving other D2D signals, and the determined D2D resource configuration, and perform other D2D on the resource location.
  • Signal transmission or reception may be a synchronization signal and/or a D2D signal, determining a synchronization reference for transmitting or receiving other D2D signals based on the synchronization signal and/
  • a computer program having a code segment configured to implement the following D2D signal transmission steps: detecting a synchronization signal and/or a D2D signal, according to a synchronization signal and/or The D2D signal determines a synchronization reference for transmitting or receiving other D2D signals; determining a D2D resource configuration according to the detected synchronization signal and/or information carried by the D2D signal; synchronizing the reference according to the determined transmission or reception of other D2D signals, and determining The D2D resource configuration determines the location of the resource used to transmit the D2D signal and transmits or receives other D2D signals at the resource location.
  • a program constituting the software is installed from a storage medium or a network to a computer having a dedicated hardware structure, such as the general-purpose computer 800 shown in FIG. 8, which is installed When there are various programs, you can perform various functions and so on.
  • a central processing module (CPU) 801 executes various processes in accordance with a program stored in a read only memory (ROM) 802 or a program loaded from a storage portion 808 to a random access memory (RAM) 803.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 801 executes various processes and the like is also stored as needed.
  • the CPU 801, the ROM 802, and the RAM 803 are connected to each other via a bus 804.
  • Input/output interface 805 is also coupled to bus 804.
  • the following components are connected to the input/output interface 805: an input portion 806 including a keyboard, a mouse, etc.; an output portion 1807, including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), and the like, and a speaker and the like;
  • the storage portion 808 includes a hard disk or the like; and the communication portion 809 includes a network interface card such as a LAN card, a modem, and the like.
  • the communication section 809 performs communication processing via a network such as the Internet.
  • the driver 810 is also connected to the input/output interface 805 as needed.
  • Removable medium 811 such as a magnetic disk, a compact disk, A magneto-optical disk, a semiconductor memory or the like is mounted on the drive 810 as needed, so that the computer program read therefrom is installed into the storage portion 808 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 811.
  • such a storage medium is not limited to the removable medium 811 shown in FIG. 8 in which a program is stored and distributed separately from the device to provide a program to the user.
  • the detachable medium 811 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered trademark) )) and semiconductor memory.
  • the storage medium may be a ROM 802, a hard disk included in the storage portion 808, etc., in which programs are stored, and distributed to the user together with the device containing them.
  • the processor 900 is configured to read a program in the memory 920 and perform the following processes:
  • Detecting a synchronization signal and/or a D2D signal determining a synchronization reference for transmitting or receiving other D2D signals according to the synchronization signal and/or the D2D signal; determining a D2D resource configuration according to the information carried by the detected synchronization signal and/or other signals; Determining a synchronization reference for transmitting or receiving other D2D signals, and determining a D2D resource configuration, determining a resource location for transmitting the D2D signal, and transmitting or receiving other D2D signals through the transceiver 910 at the resource location;
  • the transceiver 910 is configured to receive and transmit data under the control of the processor 900.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 910 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.
  • the above D2D signal may include at least one of the following:
  • D2D discovery signal D2D communication signal.
  • the above synchronization reference may include one of the following:
  • Timing synchronization reference frequency synchronization reference.
  • the manner in which the processor 900 determines to transmit or receive a synchronization reference for other D2D signals includes at least one of the following:
  • the radio frame number is obtained based on the information carried by the synchronization channel in the synchronization signal.
  • the processor 900 when determining the D2D resource configuration, can be configured to determine the D2D resource configuration according to the information carried by the synchronization signal and/or the D2D signal, and the correspondence between the previously obtained information and the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • a sequence identifier used for generating a synchronization sequence in the synchronization signal a sequence type used by the synchronization sequence
  • a cyclic shift used by the synchronization sequence a cyclic shift used by the synchronization sequence
  • TDD uplink and downlink configuration information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence identifier used to generate the discovery sequence or the communication synchronization sequence, a sequence type used for the discovery sequence or the communication synchronization sequence, a cycle used for the discovery sequence or the communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, a cell ID of a cell where the UE is located, a cluster ID of a cluster where the UE is located, a D2D application ID, a D2D resource configuration indication information, a generation discovery message, or a communication.
  • the sequence identifier used by the DMRS sequence of the message; wherein the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the above correspondence is obtained in advance from the base station or the cluster head UE, or obtained by a predetermined device.
  • the correspondence relationship includes at least one of the following:
  • the processor 900 may be further configured to determine the D2D resource configuration directly according to the D2D resource configuration information included in the detected D2D signal.
  • the D2D signal includes a D2D discovery signal and/or a D2D communication signal.
  • the processor 900 When determining the D2D resource configuration, the processor 900 directly according to the discovery message in the detected D2D discovery signal or the D2D included in the communication message in the D2D communication signal. Resource configuration information to determine D2D resource configuration.
  • the processor 900 when determining the D2D resource configuration, may be further configured to determine, according to information carried by the synchronization signal, physical resources for D2D transmission, and according to the physical Resource, determining the D2D resource configuration.
  • the information carried by the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in the synchronization signal.
  • the system bandwidth information carried in the synchronization signal includes at least one of the following: a sequence identifier used for generating a synchronization sequence in the synchronization signal, a sequence type used by the synchronization sequence, a cyclic shift used by the synchronization sequence, and TDD uplink and downlink configuration information carried in
  • the information carried by the D2D discovery signal is carried by the discovery sequence in the D2D discovery signal and/or the discovery message in the D2D discovery signal; the information carried by the D2D communication signal is communicated by the communication synchronization sequence and/or D2D communication in the D2D communication signal.
  • the communication message in the signal is carried.
  • the information carried by the discovery sequence or the communication synchronization sequence includes at least one of the following: a sequence identifier used to generate the discovery sequence or the communication synchronization sequence, a sequence type used for the discovery sequence or the communication synchronization sequence, a cycle used for the discovery sequence or the communication synchronization sequence. Shift and other information.
  • the information carried by the discovery message or the communication message includes at least one of the following: a D2D ID of the UE, a cell ID of a cell where the UE is located, a cluster ID of a cluster where the UE is located, a D2D application ID, a D2D resource configuration indication information, a generation discovery message, or a communication.
  • the sequence identifier used by the DMRS sequence of the message; wherein the D2D resource configuration indication information includes at least one of the following: D2D discovery resource configuration indication information, and D2D communication resource configuration indication information.
  • the manner in which the processor 900 performs transmission or reception of the D2D signal through the transceiver 910 at the resource location includes:
  • the signal or the D2D resource configuration determined by the information carried by the D2D communication signal obtains the resource location used for transmitting and/or receiving the D2D signal, and the D2D signal is transmitted or received by the transceiver 910.
  • the foregoing D2D resource configuration includes at least one of the following:
  • D2D discovery resource configuration D2D communication resource configuration.
  • the processor 900 determines, according to the detected synchronization signal and/or the information carried by the D2D signal, the D2D resource configuration of the UE that sends the synchronization signal and/or the D2D signal; or
  • the processor 900 determines the D2D resource configuration of the system based on the detected synchronization signal and/or information carried by the D2D signal.
  • the D2D resource configuration includes at least one of the following information: physical resource configuration, physical resource unit, number of transmissions in a single cycle, probability of D2D signal transmission, sequence information used by the D2D signal, scrambling information used for the D2D signal, CP length of the D2D signal.

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Abstract

本申请公开了一种D2D信号的传输方法和装置，其中，该方法包括：检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送或接收。本申请通过使得UE能够根据同步信号和/或D2D信号获知D2D资源配置，从而避免UE在传输D2D信号时一味采用固定资源，从而降低了相互干扰，提高了传输效率和质量。

Description

D2D信号的传输方法和装置
本申请要求在2013年11月1日提交中国专利局、申请号为201310535147.6、发明名称为“D2D信号的传输方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，并且特别地，涉及一种D2D信号的传输方法和装置。
背景技术
图1示出了传统的蜂窝通信技术中，两个终端之间的数据通信方式。如图1所示，两个终端的语音和数据等业务经过各自驻留的演进型基站(evolved Node B，下文中简称为eNB)以及核心网(SGW/PGW)进行交互。
终端直通技术(Device-to-Device，下文中简称为D2D)所实现的通信方式与图1所示的通信方式不同。如图2所示，借助于D2D，邻近的终端可以在近距离范围内通过直连链路进行数据传输的方式，不需要通过中心节点(即基站)进行转发。由于D2D技术本身的短距离通信特点和直接通信方式，因此具备以下优势：
(1)终端近距离直接通信方式可实现较高的数据速率、较低的延迟和较低的功耗；
(2)利用网络中广泛分布的用户终端以及D2D通信链路的短距离特点，可以实现频谱资源的有效利用；
(3)D2D的直接通信方式能够适应如无线对等连接网络(Peer-to-Peer，下文中简称为P2P)等业务的本地数据共享需求，提供具有灵活适应能力的数据服务；
(4)D2D直接通信能够利用网络中数量庞大且分布广泛的通信终端以拓展网络的覆盖范围。
LTE D2D技术是指工作在长期演进技术(Long Term Evolution，下文中简称为LTE)授权频段上的受LTE网络控制的D2D发现和通信过程。LTE的D2D技术可以充分发挥D2D技术的原有优势，同时LTE网络的控制也可以克服传统D2D技术的一些问题，例如干扰不可控等。LTE D2D特性的引入将使LTE技术从单纯的无线移动蜂窝通信技术向着通用连接技术(Universal Connectivity Technology，下文中简称为UCT)的方向演进。
LTE D2D技术包括D2D发现和D2D通信两个方面，其中D2D发现指一个D2D用户设备(User Equipment，下文中简称为UE)去发现附近的其他D2D UE，D2D通信指D2D UE与其他D2D UE进行数据通信传输。无论是发现还是通信，都需要基于UE间的同步才能进行D2D信号的收发。在网络覆盖内，可以由基站提供同步参考(也可称为定时参考)， 所有覆盖内的UE都按照基站发送的同步信号获得同步参考。在网络覆盖外，需要有簇头来发送同步信号，行使基站所提供的同步功能，以使簇内的其他UE能根据同步信号获得相同的同步参考。
图3-图5示出了三种D2D传输的场景，其中，图3示出了有网络覆盖的场景下D2D传输的方式，图4示出了无网络覆盖的场景下D2D传输的方式，图5示出了部分网络覆盖的场景下D2D传输的方式。通过图3-图5可以看出，无论在哪种场景，D2D UE都可能要接收来自多个小区或者多个簇的UE发送的D2D信号，因此需要按照这些UE所在的小区或者簇的D2D发送定时以及D2D资源配置来进行相应的D2D信号的接收。在此之前，UE要先获得不同小区或者簇的D2D信号相应的同步参考和D2D资源配置信息。其中，UE所在的服务小区或者所在簇的资源配置信息可以由基站或者簇头指示。
本小区的D2D资源配置信息一般由基站通知，但是，目前还没有方法可以使UE获得其他小区或者其他簇的D2D资源配置信息。这样，在例如没有网络覆盖且簇头没有资源分配能力时，不能由簇头进行资源分配和通知，UE只能采用固定的资源，这样就会导致簇间的D2D资源是相同的，容易造成相互干扰。
针对相关技术中因为UE使用固定资源传输D2D信号导致传输效率和质量降低的问题，目前尚未提出有效的解决方案。
发明内容
针对相关技术中因为UE使用固定资源传输D2D信号导致传输效率和质量降低的问题，本发明提出一种D2D信号的传输方法和装置，使得UE能够根据同步信号和/或D2D信号获知D2D资源配置，避免采用固定资源的问题，从而降低了相互干扰。
本发明的技术方案是这样实现的：
根据本发明的实施例，提供了一种D2D信号的传输方法。
该方法包括：检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送或接收。
其中，同步参考包括以下之一：
定时同步参考、频率同步参考。
并且，确定发送或者接收其他D2D信号的同步参考包括以下至少之一：
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
根据同步信号中的同步序列获得子帧起始位置和子帧编号；
根据同步信号中的同步序列获得频偏估计；
根据同步信号中的同步信道携带的信息获得无线帧编号。
此外，确定D2D资源配置包括：
根据同步信号和/或D2D信号所携带的信息、以及预先获得的信息与D2D资源配置的对应关系，确定D2D资源配置；或者，根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置；或者，直接根据检测到的D2D信号所包含的D2D资源配置信息，确定D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
此外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。
其中，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
另外，发现消息或者通信消息携带的信息包括以下至少之一：
UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
一方面，上述对应关系预先从基站或簇头UE获得、或者通过预先约定的方法得到。
并且，在对应关系预先从基站或簇头UE获得的情况下，对应关系包括以下至少之一：
本小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
本簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系。
另一方面，可以直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定D2D资源配置。
此外，在资源位置上进行D2D信号的发送或接收包括：
根据基于同步信号确定的同步参考、以及由该同步信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置进行D2D信号发送或接收；或者
根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
根据基于同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
根据基于D2D发现信号中的发现序列和同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
根据基于D2D通信信号中的通信同步序列和同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
其中，上述确定D2D资源配置的处理包括：
确定发送同步信号和/或D2D信号的UE的D2D资源配置；或者，
确定系统的D2D资源配置。
此外，D2D信号包括以下至少之一：D2D发现信号、D2D通信信号。
此外，D2D资源配置包括以下至少之一：D2D发现资源配置、D2D通信资源配置。
可选地，D2D资源配置包括以下信息中的至少之一：物理资源配置、物理资源单位、单个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
根据本发明的另一方面，提供了一种D2D信号的传输装置。
根据本发明的D2D信号的传输装置包括：第一确定模块，用于检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；第二确定模块，用于根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；传输模块，用于根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送 或接收。
其中，同步参考包括以下之一：定时同步参考、频率同步参考。
并且，第一确定模块用于通过以下方式中的至少之一确定发送或者接收其他D2D信号的同步参考：
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
根据同步信号中的同步序列获得子帧起始位置和子帧编号；
根据同步信号中的同步序列获得频偏估计；
根据同步信号中的同步信道携带的信息获得无线帧编号。
另外，在确定D2D资源配置时，第二确定模块用于根据同步信号和/或D2D信号所携带的信息、以及预先获得的信息与D2D资源配置的对应关系，确定D2D资源配置；或者，第二确定模块根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置；或者，第二确定模块用于直接根据检测到的D2D信号所包含的D2D资源配置信息，确定D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
此外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。
此外，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
此外，发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
一方面，上述对应关系预先从基站或簇头UE获得、或者通过预先约定的方法得到。
并且，在对应关系预先从基站或簇头UE获得的情况下，对应关系包括以下至少之一：
本小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
本簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系。
另一方面，第二确定模块用于直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定D2D资源配置。
此外，传输模块在资源位置上进行D2D信号的发送或接收的方式包括：
根据基于同步信号确定的同步参考、以及由该同步信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置进行D2D信号发送或接收；或者
根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
根据基于同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
根据基于D2D发现信号中的发现序列和同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
根据基于D2D通信信号中的通信同步序列和同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
此外，在确定D2D资源配置时，第二确定模块确定发送同步信号和/或D2D信号的UE的D2D资源配置；或者，第二确定模块确定系统的D2D资源配置。
另外，D2D信号包括以下至少之一：D2D发现信号、D2D通信信号。
此外，D2D资源配置包括以下至少之一：D2D发现资源配置、D2D通信资源配置。
此外，D2D资源配置包括以下信息中的至少之一：物理资源配置、物理资源单位、单个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
根据本发明的另一方面，提供了另一种D2D信号的传输装置。
根据本发明的D2D信号的传输装置包括：处理器，用于读取存储器中的程序，执行下 列过程：
检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；根据检测到的同步信号和/或其他信号所携带的信息，确定D2D资源配置；根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上通过收发机进行其他D2D信号的发送或接收；
收发机，用于在所述处理器的控制下接收和发送数据。
其中，同步参考可以包括以下之一：定时同步参考、频率同步参考。
并且，处理器用于通过以下方式中的至少之一确定发送或者接收其他D2D信号的同步参考：
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
根据同步信号中的同步序列获得子帧起始位置和子帧编号；
根据同步信号中的同步序列获得频偏估计；
根据同步信号中的同步信道携带的信息获得无线帧编号。
另外，在确定D2D资源配置时，处理器用于根据同步信号和/或D2D信号所携带的信息、以及预先获得的信息与D2D资源配置的对应关系，确定D2D资源配置；或者，第二确定模块根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置；或者，第二确定模块用于直接根据检测到的D2D信号所包含的D2D资源配置信息，确定D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
此外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。
此外，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
此外，发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所 在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
一方面，上述对应关系预先从基站或簇头UE获得、或者通过预先约定的装置得到。
并且，在对应关系预先从基站或簇头UE获得的情况下，对应关系包括以下至少之一：
本小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
本簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系。
另一方面，处理器用于直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定D2D资源配置。
此外，处理器在资源位置上通过收发机进行D2D信号的发送或接收的方式包括：
根据基于同步信号确定的同步参考、以及由该同步信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置通过所述收发机进行D2D信号发送或接收；或者
根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过所述收发机进行D2D信号发送或接收；或者
根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过所述收发机进行D2D信号发送或接收；或者
根据基于同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过所述收发机进行D2D信号发送或者接收；或者
根据基于D2D发现信号中的发现序列和同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过所述收发机进行D2D信号发送或者接收；或者
根据基于D2D通信信号中的通信同步序列和同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过所述收发机进行D2D信号发送或者接收。
另外，D2D信号包括以下至少之一：D2D发现信号、D2D通信信号。
此外，D2D资源配置包括以下至少之一：D2D发现资源配置、D2D通信资源配置。
此外，D2D资源配置包括以下信息中的至少之一：物理资源配置、物理资源单位、单 个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
本发明通过使得UE能够根据同步信号和/或D2D信号获知D2D资源配置，从而避免UE在传输D2D信号时采用固定资源，从而降低了相互干扰，提高了导致传输效率和质量。
附图说明
图1是现有技术中蜂窝网络中终端通信的数据流程结构图；
图2是现有技术中终端直连通信的数据流程结构图；
图3是现有技术中有网络覆盖的D2D传输场景结构图；
图4是现有技术中无网络覆盖的D2D传输场景结构图；
图5是现有技术中部分网络覆盖的D2D传输场景结构图；
图6是根据本发明实施例的D2D信号的传输方法的流程图；
图7是根据本发明实施例的D2D信号的传输装置的框图；
图8是能够实现根据本发明的技术方案的计算机的结构框图；
图9是根据本发明实施例的另一种D2D信号的传输装置的框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本发明保护的范围。
根据本发明的实施例，提供了一种D2D信号的传输方法。
如图6所示，根据本发明实施例的D2D信号的传输方法包括：
步骤S601，检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考(也可以称为定时参考)；
步骤S603，根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；
步骤S605，根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送或接收。
其中，D2D信号可以包括D2D发现信号和/或D2D通信信号。
应当注意的是，步骤S603中用于确定D2D资源配置的同步信号和/或D2D信号与步骤S601中用于确定同步参考的同步信号和/或D2D信号可以分别对应相同，也可以是不同的。例如，在步骤S601中，可以利用同步信号确定同步参考，在步骤S603中可以通过 D2D信号(例如，D2D通信信号或D2D发现信号)确定资源配置。
另外，在步骤S601和步骤S605中提到的其他D2D信号与前述的D2D信号不同，可以是发送前述D2D信号的UE发送的其他D2D信号，也可以是其他UE发送的D2D信号，或者是后续将要发送的D2D信号；并且，对于接收D2D信号时，可以是接收UE所在服务小区的D2D信号，也可以是非服务小区的D2D信号。
其中，同步信号可以包括用于获得子帧起始位置和子帧编号的同步序列，还可以包括用于获得无线帧编号的同步信道，这样，就能够基于同步信号确定同步参考。另外，同步参考不仅可以根据同步信号的检测确定，也可以根据D2D信号(例如，D2D发现信号)的检测确定，还可以联合同步信号和D2D信号的检测来确定。确定的同步参考包括定时同步参考、和/或频率同步参考。
具体而言，确定发送或者其他接收D2D信号的同步参考的处理可以包括以下至少之一：
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
根据同步信号中的同步序列获得子帧起始位置和子帧编号；
根据同步信号中的同步序列获得频偏估计；
根据同步信号中的同步信道携带的信息获得无线帧编号。
在一个实施例中，在根据D2D信号确定同步参考时，可以不确定子帧编号，例如，可以根据D2D发现信号中的发现序列获得子帧起始位置，从而作为同步参考，在不确定子帧编号的情况下进行D2D信号的接收。
下面将对确定D2D资源配置的过程进行描述，这里所说的资源配置可以包括D2D发现信号的资源配置(即D2D发现资源配置)，和/或D2D通信的资源配置(即D2D通信资源配置)。
并且，确定的D2D资源配置时，可以根据检测到的同步信号和/或D2D信号所携带的信息，确定发送同步信号和/或D2D信号的UE的D2D资源配置，也可以根据检测到的同步信号和/或D2D信号所携带的信息，确定系统的D2D资源配置。也就是说，确定的资源配置既可以是一个UE的，也可以是整个系统的，其中，系统的D2D资源配置可以是一个小区所有UE的D2D资源配置，也可以是所有小区的D2D资源配置。
并且，D2D资源配置可以包括以下信息中的至少之一：物理资源配置(比如D2D信号占用的时域资源和频域资源配置，包括跳频图样)；物理资源单位；(即一个发现资源或 者通信资源所占用的资源大小)；单个周期内发送的次数；D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
在确定D2D资源配置时，可以借助多种方式，下面将对这些方式分别进行描述。
(方式1)根据同步信号和/或D2D信号所携带的信息、以及预先获得的信息与D2D资源配置的对应关系，确定D2D资源配置。
对于同步信号，其携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识(该序列标识可以由UE所在小区的小区ID得到，或者UE所在簇的簇ID得到)、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的时分双工(Time Division Duplex，TDD)上下行配置信息、同步信号中携带的系统带宽信息。
另外，对于D2D发现信号，其携带的信息可以由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；而对于D2D通信信号，其携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。其中，可选地，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识(该序列标识可以是UE所在小区的小区ID，或者UE所在簇的簇ID)、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息；由发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的解调参考信号(Demodulation Reference Signal，DMRS)序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
在上述的对应关系中，对应双方中的一方是D2D资源配置，另一方则可以包含上述同步信号携带的信息、发现序列携带的信息、发现消息携带的信息、通信序列携带的信息、通信消息携带的信息中的任一信息，也可以包含之前列举的多个信息的组合。
例如，在一个实施例中，UE根据检测到的同步信号的序列所确定的序列标识，以及预先确定的序列标识与D2D资源配置的对应关系，确定D2D资源配置；在另一实施例中，UE根据检测到的D2D发现信号中的发现序列所确定的序列标识，以及预先确定的序列标识与D2D资源配置的对应关系，确定D2D资源配置；在另一实施例中，UE根据检测到的D2D发现信号中的发现消息所包含的D2D ID，以及预先确定的D2D ID与D2D发现资源配置的对应关系，确定D2D发现资源配置；在另一实施例中，UE根据检测到的D2D发现信号中的发现消息所包含的D2D资源配置指示信息，以及预先确定的D2D资源配置指示信息与D2D资源配置的对应关系，确定D2D资源配置；并且，这里所列举的具体实施例也可以相互组合，并且还可以与没有列举的其他实施例进行组合。
此外，上述对应关系预先从基站或簇头UE获得、或者通过预先约定的方法得到。
其中，在对应关系预先从基站或簇头UE获得的情况下，对应关系包括以下至少之一：
本小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
本簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系。
例如，本小区的基站可以通过和其他基站进行D2D资源配置信息的交互，获得其他小区的同步信号或者D2D信号所携带的信息与D2D资源配置的对应关系，进而通知UE；并且，簇头UE可以通过和其他簇头UE进行D2D资源配置信息的交互，获得其他簇的同步信号或者D2D信号所携带的信息与D2D资源配置的对应关系，进而通知UE。
(方式2)直接根据检测到的D2D信号所包含的D2D资源配置信息，确定D2D资源配置。D2D信号包括：D2D发现信号和/或D2D通信信号，在根据本方式确定D2D资源配置时，直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定D2D资源配置。例如，对于D2D发现信号，D2D资源配置并非以对应某特定信息的方式携带于D2D发现信号中，而是直接在D2D发现信号中携带D2D资源配置，因此，UE在确定D2D资源配置时，无需借助之前描述的方式1中的对应关系，而是直接读取D2D发现信号中所携带的内容即可。例如，UE可以根据D2D发现信号中的发现消息所包含的发现资源配置信息，确定D2D发现资源配置。而对于D2D通信信号，同样可以基于类似方式确定D2D配置。
(方式3)根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置。在根据本方式确定D2D资源配置时，根据同步信号所携带的信息，确定可以用于D2D传输的物理资源，从而确定D2D资源配置。比如，UE根据同步信号中携带的TDD上下行配置信息，确定其中的上行子帧可以用于D2D传输，从而确定D2D资源配置。又如，UE根据同步信号中携带的系统带宽信息，确定只有在系统带宽内的资源可以用于D2D传输，从而确定D2D资源配置。
对于同步信号，其携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识(该序列标识可以由UE所在小区的小区ID得到，或者UE所在簇的簇ID得到)、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
另外，对于D2D发现信号，其携带的信息可以由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；而对于D2D通信信号，其携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。其中，可选地，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序 列标识(该序列标识可以是UE所在小区的小区ID，或者UE所在簇的簇ID)、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息；由发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
在通过上述处理确定了同步参考和D2D资源配置之后，UE就可以确定传输D2D信号所用的资源位置，进而在该资源位置上进行D2D信号的发送或接收。
在一个实施例中，UE可以根据基于同步信号确定的同步参考、以及由该同步信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置进行D2D信号发送或接收。
在另一实施例中，UE可以根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收。
在另一实施例中，UE可以根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收。
在另一实施例中，UE可以根据基于同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
在另一实施例中，UE可以根据基于D2D发现信号中的发现序列和同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
在另一实施例中，UE可以根据基于D2D通信信号中的通信同步序列和同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
根据本发明的上述处理，能够实现D2D信号的发送和检测，使UE可以通过同步信号或者D2D信号获取接收不同小区或者簇的D2D信号需要的定时和资源信息，同时也可以用这种方法获取本小区或者所在簇的定时和资源信息从而进行D2D发送。
下面将结合具体实例描述本发明的技术方案。
实例1：假设UE在基站的覆盖范围内，且为D2D UE。
基站与邻近的基站进行信息交互，获得邻近基站覆盖小区的小区ID和D2D资源配置， 从而生成小区ID与D2D资源配置的对应关系，并通过下行控制信令或者广播通知UE；这里的D2D资源配置可以是D2D发现资源配置，也可以是D2D通信资源配置。例如，可以参见表1所示的对应关系：
表1
小区ID D2D资源配置
服务小区ID 周期1，子帧配置1
小区ID2 周期2，子帧配置2
小区ID3 周期3，子帧配置3
UE接收基站发送的指示小区ID与D2D资源配置的对应关系的下行控制信令或者广播；
UE基于不同的小区ID检测多个小区的同步信号，根据各小区的同步信号获得的下行定时确定接收相应小区的D2D信号的同步参考；该D2D信号与D2D资源配置对应，即当D2D资源配置为D2D发现资源配置时，此为D2D发现信号的同步参考；当D2D资源配置为D2D通信资源配置时，此为D2D通信信号的同步参考；
UE通过检测各小区的同步信号来获得各小区的小区ID，此小区ID为同步信号所用的序列确定的序列标识，方法与LTE的下行同步相同。再根据预先获得的小区ID与D2D资源配置的对应关系，确定各小区的D2D资源配置；例如，检测到某个发送同步信号A所在的小区A的ID为小区ID2，则确定该小区的D2D资源配置为周期2，子帧配置2。
UE根据确定的接收各小区的D2D信号的同步参考，以及相应小区的D2D资源配置，确定接收各小区的D2D信号所用的物理资源，并在相应资源上进行D2D信号的接收。比如，UE根据同步信号A确定小区A的同步参考，获得小区A的子帧起始位置与子帧编号，再根据由同步信号A获得的小区A，即小区ID2的D2D资源配置，以周期2为周期在子帧配置2对应的子帧内接收小区A的D2D信号。
实例2：假设UE在基站的覆盖范围外，且为D2D UE。
各UE预先约定好簇ID与D2D资源配置的对应关系，比如簇ID为K的簇对应的D2D资源周期为T，所用的D2D子帧索引N满足N mod3＝K mod3。这里的D2D资源可以是用于D2D发现的资源，也可以是用于D2D通信的资源；
UE基于不同的簇ID检测多个簇的同步信号，根据各簇的同步信号获得的下行定时确定接收相应簇的D2D信号的同步参考；这里的D2D信号与D2D资源配置对应，即当D2D资源配置为D2D发现资源配置时，此为D2D发现信号的同步参考；当D2D资源配置为D2D通信资源配置时，此为D2D通信信号的同步参考；
UE通过检测各簇的同步信号来获得各簇的簇ID，此簇ID为同步信号所用的序列确定的序列标识，方法与LTE的下行同步类似。再根据预先获得的簇ID与D2D资源配置的对 应关系，确定各簇的D2D资源配置；例如，检测到某个发送同步信号A的簇A的簇ID为k，则确定该簇的D2D资源配置为周期T，所用的D2D子帧索引N满足N mod3＝k mod3；
UE根据确定的接收各簇的D2D信号的同步参考，以及相应簇的D2D资源配置，确定接收各簇的D2D信号所用的物理资源，并在相应资源上进行D2D信号的接收。比如，UE根据同步信号A确定簇A的同步参考，获得簇A的子帧起始位置与子帧编号，再根据由同步信号A获得的簇A的D2D资源配置，以T为周期在满足N mod3＝k mod3的子帧索引对应的子帧内接收簇A的D2D信号。
实例3：假设UE在基站的覆盖范围内，且为D2D UE。
基站与邻近的基站进行信息交互，获得邻近基站覆盖的小区内UE生成发现序列所用的序列ID和相应小区的D2D发现资源配置，从而生成发现序列ID与D2D发现资源配置的对应关系，并通过下行控制信令或者广播通知UE；比如，可以参见表2所示的对应关系：(序列ID可以与小区ID相同)
表2
序列ID D2D资源配置
序列ID1 带宽配置1，发现周期1，发现子帧配置1
序列ID2 带宽配置2，发现周期2，发现子帧配置2
序列ID3 带宽配置3，发现周期3，发现子帧配置3
UE接收基站发送的指示序列ID与D2D资源配置的对应关系的下行控制信令或者广播；
UE根据不同的序列ID和相应带宽配置检测来自不同UE的D2D发现信号，根据D2D发现信号中的发现序列获得的定时确定接收相应UE或者UE所在小区其他UE的D2D发现信号的同步参考；
UE通过检测到的各UE的D2D发现信号中的发现序列，来获得UE生成发现序列所用的序列ID。再根据预先获得的发现序列ID与D2D发现资源配置的对应关系，确定相应UE或者UE所在小区其他UE发送D2D发现信号所用的D2D发现资源配置；例如，检测到某个D2D发现信号中的发现序列的序列ID为序列ID1，则确定该UE或者该UE所在小区的D2D发现资源配置为带宽配置1，发现周期1，发现子帧配置1。
UE根据确定的接收各UE或者各UE所在小区的D2D发现信号的同步参考，以及该UE或者该UE所在小区的D2D发现资源配置，确定接收该UE或者该UE所在小区其他UE的D2D发现信号所用的物理资源，并在相应资源上进行D2D发现信号的接收。比如，UE根据D2D发现信号A确定UE A的同步参考，获得UE A的子帧起始位置与子帧编号，再根据由D2D发现信号A获得的UE A即UE序列ID1的D2D资源配置，以发现周期1为周期在发现子帧配置1对应的子帧内带宽配置1对应的带宽上接收小区A的D2D发现 信号。
实例4：
UE检测来自不同UE的D2D发现信号，根据D2D发现信号中的发现序列获得的定时确定接收相应UE或者UE所在小区UE的D2D发现信号的同步参考；
UE通过检测到的各UE的D2D发现信号中的发现消息中携带的发现资源配置信息，确定相应UE或者相应UE所在小区UE发送D2D发现信号所用的D2D发现资源配置；例如，在发现消息用若干比特的发现资源配置信息中指示该UE或者该UE所在小区的D2D发现资源配置为带宽配置1，发现周期1，发现子帧配置1，跳频配置1。
UE根据确定的接收各UE或者各UE所在小区的D2D发现信号的同步参考，以及该UE或者该UE所在小区的D2D发现资源配置，确定接收该UE或者该UE所在小区UE的D2D发现信号所用的物理资源，并在相应资源上进行D2D发现信号的接收。比如，UE根据D2D发现信号A中的发现序列确定UE A所在小区的同步参考，获得该小区的子帧起始位置与子帧编号，再根据由D2D发现信号A中的发现消息获得的UE A所在小区的D2D发现资源配置，以发现周期1为周期在发现子帧配置1对应的子帧内带宽配置1对应的带宽上按照跳频配置1确定UE A所在小区各UE所用的物理资源，接收小区A中UE发送的D2D发现信号。
实例5：
UE检测来自不同小区和/或簇的同步信号，根据各小区和/或簇的同步信号获得的下行定时确定接收相应小区和/或簇的D2D发现信号的同步参考；
UE根据确定的接收相应小区和/或簇的D2D发现信号的同步参考，在预定义的资源范围内进行该小区D2D发现信号的检测；
UE通过检测到的该小区和/或簇UE发送的D2D发现信号中的发现消息中携带的发现资源配置信息，确定相应UE所在小区和/或簇的UE发送D2D发现信号所用的D2D发现资源配置；例如，在发现消息用若干比特的发现资源配置信息中指示该UE所在小区和/或簇的D2D发现资源配置为发现子帧配置1，发现子带配置1。
UE根据确定的接收各小区和/或簇的D2D发现信号的同步参考，以及相应小区和/或簇的D2D发现资源配置，确定接收各小区和/或簇的D2D发现信号所用的物理资源，并在相应资源上进行D2D发现信号的接收。比如，UE根据同步信号A确定UE A所在小区和/或簇的同步参考，获得该小区和/或簇的子帧起始位置与子帧编号，再根据由D2D发现信号A中的发现消息获得的UE A所在小区和/或簇的D2D发现资源配置，以在发现子帧配置1对应子帧内的子带配置1对应的子带上接收小区和/或簇A中UE发送的D2D发现信号。
实例6：假设UE在基站的覆盖范围外，且为D2D UE。
各UE预先约定好簇ID与D2D资源配置的对应关系，比如簇ID为K的簇对应的D2D资源周期为T，所用的D2D子帧索引N满足N mod4＝K mod4(N<20)。这里的D2D资源配置可以是D2D发现资源配置，也可以是D2D通信资源配置。
UE基于不同的簇ID检测所在簇的同步信号，根据所在簇的同步信号获得的下行定时确定发送D2D信号的同步参考；这里的D2D信号与D2D资源配置对应，即如果D2D资源配置是D2D发现资源配置，则这里就是D2D发现信号的同步参考；如果D2D资源配置是D2D通信资源配置，则这里就是D2D通信信号的同步参考；
UE根据检测同步信号过程中获得的簇ID(此簇ID为同步信号所用的序列确定的序列标识)，以及预先获得的簇ID与D2D资源配置的对应关系，确定所在簇的D2D资源配置；例如，检测到所在簇的簇ID为k，则确定该簇的D2D资源配置为发现周期T，所用的D2D子帧索引N满足N mod4＝k mod4(N<20)。这里的D2D资源配置与步骤1中的D2D资源配置包含相同的内容。
UE根据确定的发送D2D信号的同步参考，以及所在簇的D2D资源配置，确定发送D2D信号所用的物理资源，并在相应资源上进行D2D信号的发送。比如，UE根据所在簇的同步信号A确定发送同步参考，获得所在簇的子帧起始位置与子帧编号，再根据由同步信号A获得的所在簇的D2D资源配置，以T为周期在满足N mod4＝k mod4(N<20)的子帧索引对应的子帧内发送D2D信号。
实例7：
UE检测来自不同UE的D2D通信信号，根据D2D通信信号中的通信同步序列获得的定时确定接收相应UE或者UE所在小区UE的D2D通信信号的同步参考；
UE通过检测到的各UE的D2D通信信号中的通信消息中携带的通信资源配置信息，确定相应UE或者相应UE所在小区UE发送D2D通信信号所用的D2D通信资源配置；例如，在通信消息用若干比特的通信资源配置信息中指示该UE或者该UE所在小区的D2D通信资源配置为带宽配置1，通信子帧配置1，通信持续时间1。
UE根据确定的接收各UE或者各UE所在小区的D2D通信信号的同步参考，以及该UE或者该UE所在小区的D2D通信资源配置，确定接收该UE或者该UE所在小区UE的D2D通信信号所用的物理资源，并在相应资源上进行D2D通信信号的接收。比如，UE根据D2D通信信号A中的通信同步序列确定UE A所在小区的同步参考，获得该小区的子帧起始位置与子帧编号，再根据由D2D通信信号A中的通信消息获得的UE A所在小区的D2D通信资源配置，在通信子帧配置1对应的子帧内带宽配置1对应的带宽上按照通信持续时间1确定UE A所在小区各UE发送D2D通信信号所用的物理资源，接收小区A中UE发送的D2D通信信号。
根据本发明的实施例，还提供了一种D2D信号的传输装置。
如图7所示，根据本发明的D2D信号的传输装置包括：第一确定模块71，用于检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；第二确定模块72，用于根据检测到的同步信号和/或其他信号所携带的信息，确定D2D资源配置；传输模块73，用于根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送或接收。
其中，上述D2D信号可以包括以下至少之一：
D2D发现信号、D2D通信信号。
并且，上述同步参考可以包括以下之一：
定时同步参考、频率同步参考。
此外，在确定同步参考时，第一确定模块71确定发送或者接收其他D2D信号的同步参考的方式包括以下至少之一：
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
根据同步信号中的同步序列获得子帧起始位置和子帧编号；
根据同步信号中的同步序列获得频偏估计；
根据同步信号中的同步信道携带的信息获得无线帧编号。
一方面，在确定D2D资源配置时，第二确定模块72可用于根据同步信号和/或D2D信号所携带的信息、以及预先获得的信息与D2D资源配置的对应关系，确定D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
另外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。并且，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
其中，发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现 消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
另外，上述对应关系预先从基站或簇头UE获得、或者通过预先约定的装置得到。
并且，在对应关系预先从基站或簇头UE获得的情况下，对应关系包括以下至少之一：
本小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
本簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系。
另一方面，除了根据对应关系确定D2D资源配置之外，在确定D2D资源配置时，第二确定模块72还可用于直接根据检测到的D2D信号所包含的D2D资源配置信息，确定D2D资源配置。
其中，D2D信号包括D2D发现信号和/或D2D通信信号，在确定D2D资源配置时，第二确定模块72直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定D2D资源配置。
再一方面，除了上述两种确定D2D资源配置之外，在确定D2D资源配置时，第二确定模块72还可用于根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
另外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。并且，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
其中，发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
此外，传输模块73在资源位置上进行D2D信号的发送或接收的方式包括：
根据基于同步信号确定的同步参考、以及由该同步信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置进行D2D信号发送或接收；或者
根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
根据基于同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
根据基于D2D发现信号中的发现序列和同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
根据基于D2D通信信号中的通信同步序列和同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
其中，上述D2D资源配置包括以下至少之一：
D2D发现资源配置、D2D通信资源配置。
另外，在确定D2D资源配置时，第二确定模块72根据检测到的同步信号和/或D2D信号所携带的信息，确定发送同步信号和/或D2D信号的UE的D2D资源配置；或者，
第二确定模块72根据检测到的同步信号和/或D2D信号所携带的信息，确定系统的D2D资源配置。
此外，D2D资源配置包括以下信息中的至少之一：物理资源配置、物理资源单位、单个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
综上所述，借助于本发明的上述技术方案，通过根据检测到的同步信号或者D2D信号所携带的信息，确定D2D资源配置，并结合同步信号或者D2D信号确定的同步参考来进行D2D信号的检测，从而使UE可以通过同步信号或者D2D信号获取接收不同小区或者簇的D2D信号需要的定时和资源信息，从而发现归属于不同小区或者簇的UE，某个簇内的UE也可以通过同步信号获知该簇所用的D2D资源，而不需要任何额外信令开销，还可以使不同的簇使用独立的物理资源，消除资源之间的相互干扰，进而提高了传输效率与质量。
以上结合具体实施例描述了本发明的基本原理，但是，需要指出的是，对本领域的普通技术人员而言，能够理解本发明的方法和装置的全部或者任何步骤或者部件，可以在任 何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者它们的组合加以实现，这是本领域普通技术人员在阅读了本发明的说明的情况下运用它们的基本编程技能就能实现的。
因此，本发明的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此，本发明的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说，这样的程序产品也构成本发明，并且存储有这样的程序产品的存储介质也构成本发明。显然，所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。
根据本发明的另一实施例，还提供了一种存储介质(该存储介质可以是ROM、RAM、硬盘、可拆卸存储器等)，该存储介质中嵌入有用于进行D2D信号传输的计算机程序，该计算机程序具有被配置用于执行以下步骤的代码段：检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送或接收。
根据本发明的另一实施例，还提供了一种计算机程序，该计算机程序具有被配置用于实现以下D2D信号传输步骤的代码段：检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上进行其他D2D信号的发送或接收。
在通过软件和/或固件实现本发明的实施例的情况下，从存储介质或网络向具有专用硬件结构的计算机，例如图8所示的通用计算机800安装构成该软件的程序，该计算机在安装有各种程序时，能够执行各种功能等等。
在图8中，中央处理模块(CPU)801根据只读存储器(ROM)802中存储的程序或从存储部分808加载到随机存取存储器(RAM)803的程序执行各种处理。在RAM803中，也根据需要存储当CPU801执行各种处理等等时所需的数据。CPU801、ROM802和RAM803经由总线804彼此连接。输入/输出接口805也连接到总线804。
下述部件连接到输入/输出接口805：输入部分806，包括键盘、鼠标等等；输出部分1807，包括显示器，比如阴极射线管(CRT)、液晶显示器(LCD)等等，和扬声器等等；存储部分808，包括硬盘等等；和通信部分809，包括网络接口卡比如LAN卡、调制解调器等等。通信部分809经由网络比如因特网执行通信处理。
根据需要，驱动器810也连接到输入/输出接口805。可拆卸介质811比如磁盘、光盘、 磁光盘、半导体存储器等等根据需要被安装在驱动器810上，使得从中读出的计算机程序根据需要被安装到存储部分808中。
在通过软件实现上述系列处理的情况下，从网络比如因特网或存储介质比如可拆卸介质811安装构成软件的程序。
本领域的技术人员应当理解，这种存储介质不局限于图8所示的其中存储有程序、与装置相分离地分发以向用户提供程序的可拆卸介质811。可拆卸介质811的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者，存储介质可以是ROM802、存储部分808中包含的硬盘等等，其中存有程序，并且与包含它们的装置一起被分发给用户。
下面结合优选的硬件结构，对本发明实施例提供的传输装置的结构、处理方式进行说明。如图9所示，包括：处理器900，用于读取存储器920中的程序，执行下列过程：
检测同步信号和/或D2D信号，根据同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；根据检测到的同步信号和/或其他信号所携带的信息，确定D2D资源配置；根据确定的发送或者接收其他D2D信号的同步参考，以及确定的D2D资源配置，确定传输D2D信号所用的资源位置，并在资源位置上通过收发机910进行其他D2D信号的发送或接收；
收发机910，用于在处理器900的控制下接收和发送数据。
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。
其中，上述D2D信号可以包括以下至少之一：
D2D发现信号、D2D通信信号。
并且，上述同步参考可以包括以下之一：
定时同步参考、频率同步参考。
此外，在确定同步参考时，处理器900确定发送或者接收其他D2D信号的同步参考的方式包括以下至少之一：
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
根据同步信号中的同步序列获得子帧起始位置和子帧编号；
根据同步信号中的同步序列获得频偏估计；
根据同步信号中的同步信道携带的信息获得无线帧编号。
一方面，在确定D2D资源配置时，处理器900可用于根据同步信号和/或D2D信号所携带的信息、以及预先获得的信息与D2D资源配置的对应关系，确定D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
另外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。并且，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
其中，发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
另外，上述对应关系预先从基站或簇头UE获得、或者通过预先约定的装置得到。
并且，在对应关系预先从基站或簇头UE获得的情况下，对应关系包括以下至少之一：
本小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他小区的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
本簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系；
其他簇头的同步信号和/或D2D信号所携带的信息与D2D资源配置的对应关系。
另一方面，除了根据对应关系确定D2D资源配置之外，在确定D2D资源配置时，处理器900还可用于直接根据检测到的D2D信号所包含的D2D资源配置信息，确定D2D资源配置。
其中，D2D信号包括D2D发现信号和/或D2D通信信号，在确定D2D资源配置时，处理器900直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定D2D资源配置。
再一方面，除了上述两种确定D2D资源配置之外，在确定D2D资源配置时，处理器900还可用于根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置。
其中，同步信号所携带的信息包括以下至少之一：生成同步信号中同步序列所用的序列标识、同步序列所用的序列类型、同步序列所用的循环移位、同步信号中携带的TDD上下行配置信息、同步信号中携带的系统带宽信息。
另外，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。并且，由发现序列或者通信同步序列携带的信息包括以下至少之一：生成发现序列或者通信同步序列所用的序列标识、发现序列或者通信同步序列所用的序列类型、发现序列或者通信同步序列所用的循环移位等信息。
其中，发现消息或者通信消息携带的信息包括以下至少之一：UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；其中，D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
此外，处理器900在资源位置上通过收发机910进行D2D信号的发送或接收的方式包括：
根据基于同步信号确定的同步参考、以及由该同步信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置通过收发机910进行D2D信号发送和/或接收；或者
根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过收发机910进行D2D信号发送和/或接收；或者
根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过收发机910进行D2D信号发送和/或接收；或者
根据基于同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过收发机910进行D2D信号发送或者接收；或者
根据基于D2D发现信号中的发现序列和同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过收发机910进行D2D信号发送或者接收；或者
根据基于D2D通信信号中的通信同步序列和同步信号确定的同步参考，以及由该同步 信号或者该D2D通信信号所携带的信息确定的D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，通过收发机910进行D2D信号发送或者接收。
其中，上述D2D资源配置包括以下至少之一：
D2D发现资源配置、D2D通信资源配置。
另外，在确定D2D资源配置时，处理器900根据检测到的同步信号和/或D2D信号所携带的信息，确定发送同步信号和/或D2D信号的UE的D2D资源配置；或者，
处理器900根据检测到的同步信号和/或D2D信号所携带的信息，确定系统的D2D资源配置。
此外，D2D资源配置包括以下信息中的至少之一：物理资源配置、物理资源单位、单个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
还需要指出的是，在本发明的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本发明的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
虽然已经详细说明了本发明及其有点，但是应当理解在不脱离由所附的权利要求所限定的本发明的精神和范围的情况下可以进行各种改变、替代和变换。而且，本申请的术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者装置中还存在另外的相同要素。

Claims (32)

  1. 一种D2D信号的传输方法，其特征在于，包括：
    检测同步信号和/或D2D信号，根据所述同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；
    根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；
    根据确定的所述发送或者接收其他D2D信号的同步参考，以及确定的所述D2D资源配置，确定传输D2D信号所用的资源位置，并在所述资源位置上进行其他D2D信号的发送或接收。
  2. 根据权利要求1所述的传输方法，其特征在于，所述同步参考包括以下之一：
    定时同步参考、频率同步参考。
  3. 根据权利要求2所述的传输方法，其特征在于，确定发送或者接收其他D2D信号的同步参考包括以下至少之一：
    根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
    根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
    根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
    根据所述同步信号中的同步序列获得子帧起始位置和子帧编号；
    根据所述同步信号中的同步序列获得频偏估计；
    根据所述同步信号中的同步信道携带的信息获得无线帧编号。
  4. 根据权利要求1所述的传输方法，其特征在于，根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置包括：
    根据同步信号和/或D2D信号所携带的信息、以及预先获得的所述信息与所述D2D资源配置的对应关系，确定所述D2D资源配置；或者，
    根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置；或者，
    直接根据检测到的所述D2D信号所包含的D2D资源配置信息，确定所述D2D资源配置。
  5. 根据权利要求4所述的传输方法，其特征在于，所述同步信号所携带的信息包括以下至少之一：
    生成所述同步信号中同步序列所用的序列标识、所述同步序列所用的序列类型、所述同步序列所用的循环移位、同步信号中携带的时分双工TDD上下行配置信息、同 步信号中携带的系统带宽信息。
  6. 根据权利要求4所述的传输方法，其特征在于，D2D发现信号所携带的信息由D2D发现信号中的发现序列和/或所述D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由所述D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。
  7. 根据权利要求6所述的传输方法，其特征在于，由所述发现序列或者通信同步序列携带的信息包括以下至少之一：
    生成所述发现序列或者通信同步序列所用的序列标识、所述发现序列或者通信同步序列所用的序列类型、所述发现序列或者通信同步序列所用的循环移位等信息。
  8. 根据权利要求6所述的传输方法，其特征在于，所述发现消息或者通信消息携带的信息包括以下至少之一：
    UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；
    其中，所述D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
  9. 根据权利要求4所述的传输方法，其特征在于，所述对应关系预先从基站或簇头UE获得、或者通过预先约定的方法得到。
  10. 根据权利要求9所述的传输方法，其特征在于，在所述对应关系预先从基站或簇头UE获得的情况下，所述对应关系包括以下至少之一：
    本小区的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系；
    其他小区的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系；
    本簇头的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系；
    其他簇头的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系。
  11. 根据权利要求4所述的传输方法，其特征在于，直接根据检测到的所述D2D信号所包含的D2D资源配置信息，确定所述D2D资源配置包括：
    直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定所述D2D资源配置。
  12. 根据权利要求1所述的传输方法，其特征在于，在所述资源位置上进行D2D信号的发送或接收包括：
    根据基于所述同步信号确定的同步参考、以及由该同步信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置进行D2D信号发送或接收；或者
    根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
    根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
    根据基于所述同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
    根据基于所述D2D发现信号中的发现序列和所述同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
    根据基于D2D通信信号中的通信同步序列和所述同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
  13. 根据权利要求1-12中任一项所述的传输方法，其特征在于，确定D2D资源配置包括：
    确定发送所述同步信号和/或D2D信号的UE的D2D资源配置；或者，
    确定系统的D2D资源配置。
  14. 根据权利要求1-12中任一项所述的传输方法，其特征在于，所述D2D信号包括以下至少之一：
    D2D发现信号、D2D通信信号。
  15. 根据权利要求1-12中任一项所述的传输方法，其特征在于，所述D2D资源配置包括以下至少之一：
    D2D发现资源配置、D2D通信资源配置。
  16. 根据权利要求1-12中任一项所述的传输方法，其特征在于，所述D2D资源配置包括以下信息中的至少之一：
    物理资源配置、物理资源单位、单个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
  17. 一种D2D信号的传输装置，其特征在于，包括：
    第一确定模块，用于检测同步信号和/或D2D信号，根据所述同步信号和/或D2D信号确定发送或者接收其他D2D信号的同步参考；
    第二确定模块，用于根据检测到的同步信号和/或D2D信号所携带的信息，确定D2D资源配置；
    传输模块，用于根据确定的所述发送或者接收其他D2D信号的同步参考，以及确定的所述D2D资源配置，确定传输D2D信号所用的资源位置，并在所述资源位置上进行其他D2D信号的发送或接收。
  18. 根据权利要求17所述的传输装置，其特征在于，所述同步参考包括以下之一：
    定时同步参考、频率同步参考。
  19. 根据权利要求18所述的传输装置，其特征在于，所述第一确定模块用于通过以下方式中的至少之一确定发送或者接收其他D2D信号的同步参考：
    根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得子帧起始位置；
    根据D2D发现信号中的发现序列或者D2D通信信号中的通信同步序列获得频偏估计；
    根据D2D发现信号中的发现消息或者D2D通信信号中的通信消息所携带的信息获得子帧编号和/或无线帧编号；
    根据所述同步信号中的同步序列获得子帧起始位置和子帧编号；
    根据所述同步信号中的同步序列获得频偏估计；
    根据所述同步信号中的同步信道携带的信息获得无线帧编号。
  20. 根据权利要求17所述的传输装置，其特征在于，在确定D2D资源配置时，所述第二确定模块用于根据同步信号和/或D2D信号所携带的信息、以及预先获得的所述信息与所述D2D资源配置的对应关系，确定所述D2D资源配置；或者，
    所述第二确定模块用于根据同步信号所携带的信息，确定用于D2D传输的物理资源，并根据所述物理资源，确定所述D2D资源配置；或者，
    所述第二确定模块用于直接根据检测到的所述D2D信号所包含的D2D资源配置信息，确定所述D2D资源配置。
  21. 根据权利要求20所述的传输装置，其特征在于，所述同步信号所携带的信息包括以下至少之一：
    生成所述同步信号中同步序列所用的序列标识、所述同步序列所用的序列类型、所述同步序列所用的循环移位、同步信号中携带的时分双工TDD上下行配置信息、同步信号中携带的系统带宽信息。
  22. 根据权利要求20所述的传输装置，其特征在于，D2D发现信号所携带的信息 由D2D发现信号中的发现序列和/或所述D2D发现信号中的发现消息携带；D2D通信信号所携带的信息由所述D2D通信信号中的通信同步序列和/或D2D通信信号中的通信消息携带。
  23. 根据权利要求22所述的传输装置，其特征在于，由所述发现序列或者通信同步序列携带的信息包括以下至少之一：
    生成所述发现序列或者通信同步序列所用的序列标识、所述发现序列或者通信同步序列所用的序列类型、所述发现序列或者通信同步序列所用的循环移位等信息。
  24. 根据权利要求22所述的传输装置，其特征在于，所述发现消息或者通信消息携带的信息包括以下至少之一：
    UE的D2D ID、UE所在小区的小区ID、UE所在簇的簇ID、D2D应用ID、D2D资源配置指示信息、生成发现消息或者通信消息的DMRS序列所用的序列标识；
    其中，所述D2D资源配置指示信息包括以下至少之一：D2D发现资源配置指示信息、D2D通信资源配置指示信息。
  25. 根据权利要求20所述的传输装置，其特征在于，所述对应关系预先从基站或簇头UE获得、或者通过预先约定的方法得到。
  26. 根据权利要求25所述的传输装置，其特征在于，在所述对应关系预先从基站或簇头UE获得的情况下，所述对应关系包括以下至少之一：
    本小区的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系；
    其他小区的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系；
    本簇头的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系；
    其他簇头的同步信号和/或D2D信号所携带的信息与所述D2D资源配置的对应关系。
  27. 根据权利要求20所述的传输装置，其特征在于，所述第二确定模块用于直接根据检测到的D2D发现信号中的发现消息、或者D2D通信信号中的通信消息所包含的D2D资源配置信息，确定所述D2D资源配置。
  28. 根据权利要求17所述的传输装置，其特征在于，所述传输模块在所述资源位置上进行D2D信号的发送或接收的方式包括：
    根据基于所述同步信号确定的同步参考、以及由该同步信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，并根据该资源位置进行D2D信号发送或接收；或者
    根据基于D2D发现信号中的发现序列确定的同步参考，以及由该D2D发现信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
    根据基于D2D通信信号中的通信同步序列确定的同步参考，以及由该D2D通信信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或接收；或者
    根据基于所述同步信号确定的同步参考，以及由D2D发现信号所携带的信息和/或D2D通信信号所带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
    根据基于所述D2D发现信号中的发现序列和所述同步信号确定的同步参考，以及由该同步信号或者该D2D发现信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收；或者
    根据基于D2D通信信号中的通信同步序列和所述同步信号确定的同步参考，以及由该同步信号或者该D2D通信信号所携带的信息确定的所述D2D资源配置，得到发送和/或接收D2D信号所用的资源位置，进行D2D信号发送或者接收。
  29. 根据权利要求17-28中任一项所述的传输装置，其特征在于，在确定D2D资源配置时，所述第二确定模块确定发送所述同步信号和/或D2D信号的UE的D2D资源配置；或者，所述第二确定模块确定系统的D2D资源配置。
  30. 根据权利要求17-28中任一项所述的传输装置，其特征在于，所述D2D信号包括以下至少之一：
    D2D发现信号、D2D通信信号。
  31. 根据权利要求17-28中任一项所述的传输装置，其特征在于，所述D2D资源配置包括以下至少之一：
    D2D发现资源配置、D2D通信资源配置。
  32. 根据权利要求17-28中任一项所述的传输装置，其特征在于，所述D2D资源配置包括以下信息中的至少之一：
    物理资源配置、物理资源单位、单个周期内发送的次数、D2D信号发送的概率、D2D信号所用的序列信息、D2D信号所用的加扰信息、D2D信号的CP长度。
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