WO2015169224A1 - 基站、用户设备及相关方法 - Google Patents

基站、用户设备及相关方法 Download PDF

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Publication number
WO2015169224A1
WO2015169224A1 PCT/CN2015/078387 CN2015078387W WO2015169224A1 WO 2015169224 A1 WO2015169224 A1 WO 2015169224A1 CN 2015078387 W CN2015078387 W CN 2015078387W WO 2015169224 A1 WO2015169224 A1 WO 2015169224A1
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WIPO (PCT)
Prior art keywords
subframe
starting
receiving
transmitting
transmit
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PCT/CN2015/078387
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English (en)
French (fr)
Inventor
蒋琦
刘仁茂
李波
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Sharp Corp
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Sharp Corp
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Priority to US15/309,080 priority Critical patent/US20170071012A1/en
Publication of WO2015169224A1 publication Critical patent/WO2015169224A1/zh
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Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a base station, a user equipment, and related methods.
  • Modern wireless mobile communication systems present two distinctive features.
  • One is broadband high speed.
  • the fourth generation wireless mobile communication system has a bandwidth of up to 100 MHz and a downlink rate of up to 1 Gbps.
  • the second is mobile internet, which promotes mobile Internet access and mobile video on demand. , emerging services such as online navigation.
  • These two characteristics put forward high requirements for wireless mobile communication technology, including: ultra-high-rate wireless transmission, inter-region interference suppression, reliable transmission of signals in mobile, distributed/centralized signal processing, and so on.
  • 4G fourth generation
  • 5G fifth generation
  • the 3rd Generation Partnership Project (3GPP) organization discussed and adopted the device-to-device (D2D) communication technology as the key technology of the enhanced fourth-generation wireless mobile communication system at the 58th plenary meeting.
  • 3GPP 3rd Generation Partnership Project
  • D2D technology can realize local communication or peer-to-peer peer-to-peer communication without accessing the core network.
  • the transmission mode using D2D technology has a very positive effect on reducing the load on the base station and prolonging the battery life of the mobile terminal.
  • the scenario of the D2D user equipment can be divided into: network coverage, no network coverage, and partial network coverage.
  • the scenario in which part of the network coverage refers to the case of a D2D user equipment that includes network coverage and no network coverage.
  • 3GPP defines the use of a Physical Downlink Control Channel (PDCCH) and an Enhanced Physical Downlink Control Channel (EPDCCH) to transmit D2D scheduling allocation (SA) and/or D2D data (DATA).
  • D2D authorization information (Grant).
  • UE User Equipment
  • the corresponding D2D scheduling assignment and the D2D data may be sent to another D2D UE according to the authorization information.
  • the UE does not know which subframe to transmit the corresponding D2D scheduling allocation and D2D data from.
  • a new control scheme is needed to control the temporal relationship between the subframe for D2D grant information and the starting subframe for D2D transmission (ie, D2D scheduling allocation and/or D2D data) for the UE.
  • a method in a base station comprising: transmitting device-to-device D2D grant information to a user equipment UE; and transmitting D2D indication information to the UE, the D2D indication information indicating a D2D authorization for transmitting The first relative positional relationship between the subframe of the information and the first starting subframe that the UE is to use to transmit the D2D scheduling assignment.
  • the D2D indication information further indicates a second relative positional relationship between a subframe for transmitting D2D grant information and a second start subframe for which the UE is to transmit D2D data.
  • the method further comprises: transmitting another D2D authorization information to the UE; and transmitting another D2D indication information to the UE, the another D2D indication information indicating a sub-sent for transmitting the another D2D authorization information
  • transmitting another D2D authorization information to the UE
  • transmitting another D2D indication information to the UE
  • the another D2D indication information indicating a sub-sent for transmitting the another D2D authorization information
  • a method in a user equipment UE comprising: receiving device-to-device D2D authorization information from a base station; receiving D2D indication information from a base station, the D2D indication information indicating receiving D2D authorization information a first relative positional relationship between the subframe and the first start subframe to be used by the UE to send the D2D scheduling allocation; determining, according to the first relative positional relationship, a first starting subframe to be used by the UE to send the D2D scheduling allocation; And starting to send the D2D scheduling assignment at the first starting subframe.
  • the D2D indication information further indicates a second relative positional relationship between a subframe for receiving D2D grant information and a second start subframe for which the UE is to transmit D2D data.
  • the method further includes determining, according to the second relative positional relationship, a second starting subframe to be used by the UE to transmit D2D data; and starting to transmit D2D data at the second starting subframe.
  • the method further comprises: receiving another D2D authorization information from the base station; and receiving another D2D indication information from the base station, the another D2D indication information indicating a child for receiving the another D2D authorization information
  • the second relative positional relationship between the frame and the second starting subframe that the UE is to use to transmit the D2D data further includes determining, according to the second relative positional relationship, a second starting subframe to be used by the UE to transmit D2D data; and starting to transmit D2D data at the second starting subframe.
  • a base station comprising: a first transmitting unit configured to transmit device-to-device D2D grant information to a user equipment UE; and a second transmitting unit configured to send a D2D indication to the UE Information, the D2D indication information indicating a first relative positional relationship between a subframe for transmitting D2D grant information and a first start subframe to be used by the UE to transmit a D2D scheduling assignment.
  • the D2D indication information further indicates a second relative positional relationship between a subframe for transmitting D2D grant information and a second start subframe for which the UE is to transmit D2D data.
  • the first transmitting unit is further configured to transmit another D2D authorization information to the UE; and the second transmitting unit is further configured to transmit another D2D indication information to the UE, the another D2D indication information indication being used for A second relative positional relationship between the subframe in which the other D2D grant information is transmitted and the second start subframe in which the UE is to transmit D2D data.
  • a user equipment UE comprising: a receiving unit configured to receive device-to-device D2D authorization information from a base station, and receive D2D indication information from a base station, the D2D indication information indication being used for a first relative positional relationship between the subframe that receives the D2D authorization information and the first starting subframe that the UE is to use to send the D2D scheduling allocation; the determining unit is configured to determine, according to the first relative location relationship, that the UE is to be used for sending a first starting subframe allocated by the D2D scheduling; and a transmitting unit configured to start transmitting the D2D scheduling allocation at the first starting subframe.
  • the D2D indication information further indicates a second relative positional relationship between a subframe for receiving D2D grant information and a second start subframe to be used by the UE to transmit D2D data
  • the determining unit is further configured Determining, according to the second relative positional relationship, a second starting subframe that the UE is to use to transmit D2D data
  • the transmitting unit is further configured to start transmitting D2D data at the second starting subframe.
  • the receiving unit is further configured to receive another D2D grant information from the base station and receive another D2D indication information from the base station, the another D2D indication information indicating a sub-address for receiving the another D2D authorization information a second relative positional relationship between the frame and a second starting subframe to be used by the UE to transmit the D2D data, the determining unit further configured to determine, according to the second relative positional relationship, the second to be used by the UE to transmit the D2D data And the transmitting unit is further configured to start transmitting the D2D data at the second starting subframe.
  • a method in a user equipment UE comprising: receiving device-to-device D2D grant information from a base station; and using a subframe for receiving D2D grant information and a UE to be used for transmitting D2D scheduling allocation a first predetermined relationship between the first starting subframes, determining a first starting subframe to be used by the UE to transmit the D2D scheduling assignment; and starting to transmit the D2D scheduling assignment at the first starting subframe.
  • the method further comprises: starting to transmit D2D data at the first starting subframe.
  • the first starting subframe is a first subframe after a subframe for receiving D2D grant information in a subframe allocated in advance to the D2D service.
  • the first starting subframe is a kth subframe after a subframe for receiving D2D grant information, where k is an integer greater than or equal to 1.
  • the method further comprises: determining, according to a second predetermined relationship between a subframe for receiving D2D grant information and a second starting subframe that the UE is to use to transmit D2D data, determining that the UE is to be used for sending a second starting subframe of D2D data; and starting to transmit D2D data at the second starting subframe.
  • the second starting subframe is a first subframe after a subframe for receiving D2D grant information in a subframe allocated in advance to the D2D service.
  • the second starting subframe is an mth subframe after a subframe for receiving D2D grant information, where m is an integer greater than or equal to 1.
  • a user equipment UE comprising: a receiving unit configured to receive device-to-device D2D grant information from a base station; and a determining unit configured to be configured according to a subframe for receiving D2D grant information Used with the UE to send D2D scheduling assignments Determining, by a first predetermined relationship between the first starting subframes, a first starting subframe to be used by the UE to transmit the D2D scheduling assignment; and a transmitting unit configured to start transmitting the D2D scheduling assignment at the first starting subframe.
  • the transmitting unit is further configured to start transmitting D2D data at the first starting subframe.
  • the first starting subframe is a first subframe after a subframe for receiving D2D grant information in a subframe allocated in advance to the D2D service.
  • the first starting subframe is a kth subframe after a subframe for receiving D2D grant information, where k is an integer greater than or equal to 1.
  • the determining unit is further configured to determine, according to a second predetermined relationship between the subframe for receiving the D2D grant information and the second start subframe that the UE is to use to transmit the D2D data, determining that the UE is to be used for sending a second starting subframe of D2D data; and the transmitting unit is further configured to start transmitting D2D data at the second starting subframe.
  • the second starting subframe is a first subframe after a subframe for receiving D2D grant information in a subframe allocated in advance to the D2D service.
  • the second starting subframe is an mth subframe after a subframe for receiving D2D grant information, where m is an integer greater than or equal to 1.
  • the UE may determine the relative subframe position relationship between the subframe for D2D grant information and the start subframe for D2D transmission (D2D scheduling allocation and/or D2D data).
  • the starting subframe for D2D transmission may be dynamically indicated by the D2D indication information received from the base station, or may be statically scheduled.
  • FIG. 1 is a block diagram of a base station according to an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method in a base station according to an embodiment of the present invention.
  • FIG. 3 is a block diagram of a UE according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method in a UE according to an embodiment of the present invention.
  • FIG. 5 is a block diagram of a UE according to another embodiment of the present invention.
  • FIG. 6 is a flow chart of a method in a UE in accordance with another embodiment of the present invention.
  • FIG. 1 shows a block diagram of a base station 100 in accordance with an embodiment of the present invention.
  • the base station 100 includes a first transmitting unit 110 and a second transmitting unit 120.
  • base station 100 also includes other functional units necessary to implement its functions, such as various processors, memories, and the like.
  • the first transmitting unit 110 is configured to transmit device-to-device D2D authorization information to the user equipment UE.
  • the second sending unit 120 is configured to send D2D indication information to the UE, where the D2D indication information indicates a first subframe between the subframe for transmitting the D2D grant information and the first start subframe to be used by the UE to transmit the D2D scheduling assignment. Relative positional relationship.
  • the "relative positional relationship" between subframe A and subframe B may be expressed as the difference between subframe number of subframe A and subframe B.
  • the D2D indication information may be set at a bit in an existing downlink control information (DCI) format transmitted in the PDCCH or EPDCCH. If the transmitted DCI format is format 0, the D2D indication information may be transmitted by using unused bits of the D2D authorization information, such as a new data indicator, a TPC command, and a cyclic shift. Cyclic shift, uplink index (Downlink Assignment Index), channel quality report request (CSI request), sounding reference signal demand (SRS request), part of resource allocation type (Resource allocation type) Or all bits.
  • DCI downlink control information
  • the D2D indication information may also be set at a bit in a new DCI format transmitted in the PDCCH or EPDCCH.
  • the D2D indication information may also be set on one or more of the system broadcast information blocks SIB1 to SIB16.
  • the D2D indication information may also be set on one or more of the new system broadcast information blocks.
  • UE-specific radio resource control (RRC) signaling may also be utilized to transmit D2D indication information.
  • the UE-specific RRC signaling may be a RadioResourceConfigDedicated information element.
  • the UE-specific RRC signaling may also be an RRCConnectionSetup message.
  • the D2D indication information may further indicate a second relative positional relationship between the subframe used for transmitting the D2D authorization information and the second starting subframe that the UE is to use to transmit the D2D data.
  • the first transmitting unit 110 is further configured to transmit another D2D authorization information to the UE.
  • the second transmitting unit 120 is further configured to send another D2D indication information to the UE, the another D2D indication information indicating a subframe for transmitting the another D2D authorization information and a second UE to be used for transmitting D2D data. The second relative positional relationship between the starting subframes.
  • Method 200 is a flow diagram of a method 200 in a base station in accordance with an embodiment of the present invention. It should be noted that all of the features described in connection with the embodiments of base station 100 described above are also applicable to the following method embodiments. Method 200 can be performed by base station 100 described above and includes the following steps.
  • step S210 device-to-device D2D authorization information is transmitted to the user equipment UE.
  • step S220 D2D indication information is sent to the UE, where the D2D indication information indicates a first relative positional relationship between a subframe for transmitting D2D grant information and a first start subframe to be used by the UE to transmit a D2D scheduling assignment.
  • the D2D indication information further indicates a second relative between the subframe used for transmitting the D2D authorization information and the second starting subframe that the UE is to use to send the D2D data. Positional relationship.
  • method 200 further includes the following steps (not shown): transmitting another D2D grant information to the UE; and transmitting another D2D indication information to the UE, the another D2D indication information indicating for transmitting the other A second relative positional relationship between the subframe of the D2D grant information and the second start subframe that the UE is to use to transmit the D2D data.
  • FIG. 3 shows a block diagram of a UE 300 in accordance with an embodiment of the present invention.
  • the UE 300 includes a receiving unit 310, a determining unit 320, and a transmitting unit 330.
  • the UE 300 also includes other functional units necessary to implement its functions, such as various processors, memories, and the like.
  • the receiving unit 310 is configured to receive device-to-device D2D authorization information from the base station, and receive D2D indication information from the base station, the D2D indication information indicating a subframe for receiving D2D grant information and a UE to be used for transmitting D2D scheduling allocation A first relative positional relationship between the starting subframes.
  • the determining unit 320 is configured to determine, according to the first relative positional relationship, a first starting subframe that the UE is to use to transmit the D2D scheduling assignment.
  • Transmitting unit 330 is configured to begin transmitting D2D scheduling assignments at the first starting subframe.
  • the D2D indication information may further indicate a second relative positional relationship between the subframe for receiving the D2D grant information and the second starting subframe that the UE is to use to transmit the D2D data.
  • the determining unit 320 is further configured to determine, according to the second relative positional relationship, a second starting subframe that the UE is to use to transmit the D2D data.
  • Transmitting unit 330 is also configured to begin transmitting D2D data at the second starting subframe.
  • the receiving unit 310 is further configured to receive another D2D grant information from the base station and receive another D2D indication information from the base station, the another D2D indication information indicating a sub-address for receiving the another D2D authorization information
  • the determining unit 320 is also equipped And determining, according to the second relative positional relationship, a second starting subframe that the UE is to use to send the D2D data.
  • Transmitting unit 330 is also configured to begin transmitting D2D data at the second starting subframe.
  • the example described above in connection with the base station 100 is also applicable to the UE 300.
  • Method 400 is a flow diagram of a method 400 in a UE in accordance with an embodiment of the present invention. It should be noted that all of the features described in connection with the embodiments of UE 300 described above are also applicable to the following method embodiments. Method 400 can be performed by UE 300 described above and includes the following steps.
  • step S410 the device-to-device D2D authorization information is received from the base station.
  • step S420 D2D indication information is received from the base station, the D2D indication information indicating a first relative positional relationship between a subframe for receiving D2D grant information and a first start subframe to be used by the UE to transmit D2D scheduling assignment.
  • step S430 according to the first relative positional relationship, the first starting subframe to be used by the UE to transmit the D2D scheduling allocation is determined.
  • the D2D scheduling assignment is started to be transmitted at the first starting subframe.
  • the D2D indication information may further indicate a second relative positional relationship between the subframe for receiving the D2D authorization information and the second starting subframe that the UE is to use to send the D2D data.
  • the method 400 further includes determining, according to the second relative positional relationship, a second starting subframe that the UE is to use to transmit the D2D data; and starting to transmit the D2D data at the second starting subframe.
  • method 400 may further comprise: receiving another D2D grant information from the base station; and receiving another D2D indication information from the base station, the another D2D indication information indicating a subframe for receiving the another D2D grant information A second relative positional relationship with a second starting subframe that the UE is to use to transmit D2D data.
  • the method 400 can also include determining, according to the second relative positional relationship, a second starting subframe that the UE is to use to transmit the D2D data; and starting to transmit the D2D data at the second starting subframe.
  • FIG. 5 shows a block diagram of a UE 500 in accordance with an embodiment of the present invention.
  • the UE 500 includes a receiving unit 510, a determining unit 520, and a transmitting unit 530.
  • the receiving unit 510 is configured to receive device-to-device D2D authorization information from the base station.
  • the determining unit 520 is configured to determine the UE according to a first predetermined relationship between a subframe for receiving D2D grant information and a first start subframe to be used by the UE to transmit a D2D scheduling assignment.
  • Transmitting unit 530 is configured to begin transmitting D2D scheduling assignments at the first starting subframe.
  • the sending unit 530 is further configured to start transmitting D2D data at the first starting subframe.
  • the first starting subframe is the first subframe after the subframe for receiving the D2D grant information in the subframe allocated in advance to the D2D service.
  • the first starting subframe is the kth subframe after the subframe for receiving the D2D grant information, where k is an integer greater than or equal to 1.
  • the determining unit 520 is further configured to determine, according to a second predetermined relationship between the subframe for receiving the D2D grant information and the second start subframe that the UE is to use to transmit the D2D data, determining that the UE is to be used for sending The second starting subframe of the D2D data.
  • Transmitting unit 530 is also configured to begin transmitting D2D data at the second starting subframe.
  • the second starting subframe is the first subframe after the subframe for receiving the D2D grant information in the subframe allocated in advance to the D2D service.
  • the second starting subframe is the mth subframe after the subframe for receiving the D2D grant information, where m is an integer greater than or equal to 1.
  • FIG. 6 is a flow diagram of a method 600 in a UE in accordance with an embodiment of the present invention. It should be noted that all of the features described in connection with the embodiments of UE 400 described above are also applicable to the following method embodiments. Method 600 can be performed by UE 400 described above and includes the following steps.
  • step S610 device-to-device D2D authorization information is received from the base station.
  • step S620 determining, according to a first predetermined relationship between a subframe for receiving D2D grant information and a first start subframe to be used by the UE to transmit a D2D scheduling assignment, determining a first start that the UE is to use to transmit a D2D scheduling assignment Subframe.
  • the D2D scheduling assignment is started to be transmitted at the first starting subframe.
  • the method 600 further includes starting to transmit the D2D data at the first starting subframe.
  • the first starting subframe is the first subframe after the subframe for receiving the D2D grant information in the subframe allocated in advance to the D2D service.
  • the first starting subframe is the kth subframe after the subframe for receiving the D2D grant information, where k is an integer greater than or equal to 1.
  • the method 600 further includes: according to the subframe used to receive the D2D authorization information Determining, by the UE, a second predetermined relationship between the second start subframes of the D2D data, determining a second start subframe to be used by the UE to transmit D2D data; and starting to transmit the D2D at the second start subframe data.
  • the second starting subframe is the first subframe after the subframe for receiving the D2D grant information in the subframe allocated in advance to the D2D service.
  • the second starting subframe is the mth subframe after the subframe for receiving the D2D grant information, where m is an integer greater than or equal to 1.
  • the UE may determine the relative subframe position relationship between the subframe for D2D grant information and the start subframe for D2D transmission (D2D scheduling allocation and/or D2D data).
  • the starting subframe for D2D transmission may be dynamically indicated by the D2D indication information received from the base station, or may be statically scheduled.
  • the above-described embodiments of the present invention can be implemented by software, hardware, or a combination of both software and hardware.
  • the base station and various components within the user equipment in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, and programmable processing. , Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • base station refers to a mobile communication data and control switching center having a large transmission power and a relatively large coverage area, including resource allocation scheduling, data reception and transmission, and the like.
  • User equipment refers to a user mobile terminal, for example, a terminal device including a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.
  • embodiments of the invention disclosed herein may be implemented on a computer program product.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present invention.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of the present invention.
  • Such an arrangement of the present invention is typically provided as software, code and/or other data structures, or such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk.
  • ROM or RAM Or firmware on the PROM chip or other medium of microcode, or downloadable software images in one or more modules, shared databases, and the like.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present invention.

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Abstract

本发明提供了一种用户设备UE，包括：接收单元，被配置为从基站接收设备至设备D2D授权信息，并从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系；确定单元，被配置为根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及发送单元，被配置为在第一起始子帧处开始发送D2D调度分配。

Description

基站、用户设备及相关方法 技术领域
本发明涉及无线通信技术领域，更具体地，涉及一种基站、用户设备及相关方法。
背景技术
现代无线移动通信系统呈现出两个显著特点，一是宽带高速率，比如第四代无线移动通信系统的带宽可达100MHz，下行速率高达1Gbps；二是移动互联，推动了移动上网、手机视频点播、在线导航等新兴业务。这两个特点对无线移动通信技术提出了较高要求，主要有：超高速率无线传输、区域间干扰抑制、移动中可靠传输信号、分布式/集中式信号处理等等。在未来的增强第四代(4G)及第五代(5G)无线移动通信系统中，为了满足上述发展需求，各种相应的关键技术开始被提出和论证，值得本领域的研究人员广泛关注。
在2007年10月，国际电信联盟(ITU)批准全球微波互联接入系统(WiMax，Worldwide Interoperability for Microwave Access)成为第四个3G系统标准。这一发生在3G时代末期的事件，实际上是4G标准争夺战的预演。事实上，为了应对以无线局域网和WiMax为代表的无线IP技术流的挑战，从2005年开始，第三代3GPP组织就着手进行全新的系统升级，即长期演进系统(LTE，Long Term Evolution)的标准化工作。这是一个基于正交频分复用技术(OFDM，Orthogonal Frequency Division Multiplexing)的准四代系统，已于2009年初推出第一版，并在2010年陆续在全球开始商用。与此同时，3GPP组织关于第四代无线移动通信系统(4G，the Fourth Generation)的标准化制定工作也已经于2008年上半年启动，该系统称为先进的长期演进系统(LTE-A，Long Term Evolution Advanced)。该系统的物理层过程的关键标准化文书已于2011年初完成。在2011年11月ITU组织在中国重庆正式宣布，LTE-A系统和WiMax系统是4G系统的两个官方标准。目前，LTE-A系统的商用过程正在全球范围逐步展开。
根据未来十年的挑战，对于增强的第四代无线移动通信系统，大致 有以下几点发展需求：
-更高的无线宽带速率，且重点优化局部的小区热点区域；
-进一步提高用户体验，特别需要优化小区边界区域的通信服务；
-考虑到可用频谱不可能有1000倍的扩展，故需要继续研究能够提高频谱利用效率的新技术；
-高频段的频谱(5GHz，甚至更高)必将投入使用，以获得较大的通信带宽；
-现有网络(2G/3G/4G，WLAN，WiMax等)的协同工作，以分担数据流量；
-针对不同业务、应用和服务特定优化；
-加强系统支持大规模机器通信的能力；
-灵活、智能且廉价的网络规划与布网；
-设计方案以节省网络的用电量和用户设备的电池消耗。
为了实现上述发展需求，国际第三代伙伴计划(3GPP)组织在第58次全会上讨论并通过了将设备到设备(D2D)通信技术作为增强的第四代无线移动通信系统的关键技术。
D2D技术可以实现本地通信或对等的点对点通信，而无需接入核心网络，采用D2D技术的传输方式，在减轻基站负载和延长移动终端电池的使用时间上都有十分积极的作用。通常根据实现D2D传输的用户设备(以下称为D2D用户设备)所处的场景是否有宏基站的覆盖，可以将D2D用户设备的场景划分为：有网络覆盖下、无网络覆盖下以及部分网络覆盖，其中部分网络覆盖的场景是指，包含有网络覆盖和无网络覆盖的D2D用户设备的情况。
目前针对D2D通信，特别是基站覆盖下的D2D通信，3GPP定义了利用物理下行控制信道(PDCCH)和增强物理下行控制信道(EPDCCH)来传输D2D调度分配(SA)和/或D2D数据(DATA)对应的D2D授权信息(Grant)。当D2D用户设备(UE)接收到包含授权信息的子帧后，可以根据授权信息向另一D2D UE发送相应的D2D调度分配和D2D数据。然而，在从基站接收到包含D2D授权信息的子帧之后，UE不知道从后续哪个子帧开始发送相应的D2D调度分配及D2D数据。
因此，需要新的控制方案，以控制用于D2D授权信息的子帧与用于UE的D2D传输(即D2D调度分配和/或D2D数据)的起始子帧之间的时间关系。
发明内容
本发明的目的是提供一种基站、用户设备及相关方法，能够控制用于D2D授权信息的子帧与用于UE的D2D传输的起始子帧之间的时间关系。
根据本发明的第一方面，提供了一种基站中的方法，包括：向用户设备UE发送设备至设备D2D授权信息；以及向UE发送D2D指示信息，所述D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
在实施例中，所述D2D指示信息还指示用于发送D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
在实施例中，所述方法还包括：向UE发送另一D2D授权信息；以及向UE发送另一D2D指示信息，所述另一D2D指示信息指示用于发送所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
根据本发明的第二方面，提供了一种用户设备UE中的方法，包括：从基站接收设备至设备D2D授权信息；从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系；根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及在第一起始子帧处开始发送D2D调度分配。
在实施例中，所述D2D指示信息还指示用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。所述方法还包括：根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及在第二起始子帧处开始发送D2D数据。
在实施例中，所述方法还包括：从基站接收另一D2D授权信息；以及从基站接收另一D2D指示信息，所述另一D2D指示信息指示用于接收所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。所述方法还包括：根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及在第二起始子帧处开始发送D2D数据。
根据本发明的第三方面，提供了一种基站，包括：第一发送单元，被配置为向用户设备UE发送设备至设备D2D授权信息；以及第二发送单元，被配置为向UE发送D2D指示信息，所述D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
在实施例中，所述D2D指示信息还指示用于发送D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
在实施例中，第一发送单元还被配置为向UE发送另一D2D授权信息；以及第二发送单元还被配置为向UE发送另一D2D指示信息，所述另一D2D指示信息指示用于发送所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
根据本发明的第四方面，提供了一种用户设备UE，包括：接收单元，被配置为从基站接收设备至设备D2D授权信息，并从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系；确定单元，被配置为根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及发送单元，被配置为在第一起始子帧处开始发送D2D调度分配。
在实施例中，所述D2D指示信息还指示用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系，确定单元还被配置为根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及
发送单元还被配置为在第二起始子帧处开始发送D2D数据。
在实施例中，接收单元还被配置为从基站接收另一D2D授权信息，并从基站接收另一D2D指示信息，所述另一D2D指示信息指示用于接收所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系，确定单元还被配置为根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及发送单元还被配置为在第二起始子帧处开始发送D2D数据。
根据本发明的第五方面，提供了一种用户设备UE中的方法，包括：从基站接收设备至设备D2D授权信息；根据用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一预定关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及在第一起始子帧处开始发送D2D调度分配。
在实施例中，所述方法还包括：在第一起始子帧处开始发送D2D数据。
在实施例中，所述第一起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
在实施例中，所述第一起始子帧是用于接收D2D授权信息的子帧之后的第k个子帧，其中k为大于或等于1的整数。
在实施例中，所述方法还包括：根据用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二预定关系，确定UE要用于发送D2D数据的第二起始子帧；以及在第二起始子帧处开始发送D2D数据。
在实施例中，所述第二起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
在实施例中，所述第二起始子帧是在用于接收D2D授权信息的子帧之后的第m个子帧，其中m为大于或等于1的整数。
根据本发明的第六方面，提供了一种用户设备UE，包括：接收单元，被配置为从基站接收设备至设备D2D授权信息；确定单元，被配置为根据用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配 的第一起始子帧之间的第一预定关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及发送单元，被配置为在第一起始子帧处开始发送D2D调度分配。
在实施例中，发送单元还被配置为在第一起始子帧处开始发送D2D数据。
在实施例中，所述第一起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
在实施例中，所述第一起始子帧是用于接收D2D授权信息的子帧之后的第k个子帧，其中k为大于或等于1的整数。
在实施例中，确定单元还被配置为根据用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二预定关系，确定UE要用于发送D2D数据的第二起始子帧；以及发送单元还被配置为在第二起始子帧处开始发送D2D数据。
在实施例中，所述第二起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
在实施例中，所述第二起始子帧是在用于接收D2D授权信息的子帧之后的第m个子帧，其中m为大于或等于1的整数。
根据本发明的实施例，UE可以根据用于D2D授权信息的子帧与用于D2D传输(D2D调度分配和/或D2D数据)的起始子帧之间的相对子帧位置关系，来确定用于D2D传输的起始子帧。这里，相对子帧位置关系可以是从基站接收的D2D指示信息动态指示的，或者是静态预定的。
附图说明
通过下面结合附图说明本发明的优选实施例，将使本发明的上述及其它目的、特征和优点更加清楚，其中：
图1是根据本发明实施例的基站的框图；
图2是根据本发明实施例的基站中的方法的流程图；
图3是根据本发明实施例的UE的框图；
图4是根据本发明实施例的UE中的方法的流程图；
图5是根据本发明另一实施例的UE的框图；以及
图6是根据本发明另一实施例的UE中的方法的流程图。
具体实施方式
以下将结合附图和具体实施例，对本发明的实施例进行详细阐述。应当注意，本发明不应局限于下文所述的具体实施例。另外，为了简便起见，省略了对与本发明没有直接关联的公知技术的详细描述，以防止对本发明的理解造成混淆。
下文以LTE移动通信系统及其后续的演进版本作为示例应用环境，具体描述了根据本发明的多个实施例。然而，需要指出的是，本发明不限于以下实施例，而是可适用于更多其它的无线通信系统，例如今后的5G蜂窝通信系统。
图1示出了根据本发明实施例的基站100的框图。如图所示，基站100包括：第一发送单元110和第二发送单元120。本领域技术人员应理解，基站100还包括实现其功能所必需的其他功能单元，如各种处理器、存储器等等。
第一发送单元110被配置为向用户设备UE发送设备至设备D2D授权信息。
第二发送单元120被配置为向UE发送D2D指示信息，所述D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
在本发明的上下文中，子帧A与子帧B之间的“相对位置关系”可以表示为子帧A与子帧B的子帧编号之间的差值。相应地，这里，D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧的子帧编号之间的差值。例如，用于发送D2D授权信息的子帧编号为x，D2D指示信息指示的差值为y，则D2D指示信息指示UE从子帧编号z＝x+y开始发送D2D调度分配。
作为示例，D2D指示信息可以设置在PDCCH或EPDCCH中传输的现有下行控制信息(DCI)格式中的比特处。如果所传输的DCI格式为格式0，可以采用D2D授权信息未使用的比特来传输D2D指示信息，例如新数据指示(New data indicator)，功控指令(TPC command)，循环移 位(Cyclic shift)，上行指示(UL index)，下行配置(Downlink Assignment Index)，信道质量汇报需求(CSI request)，探测参考信号需求(SRS request)，资源分配方式(Resource allocation type)中的部分或所有比特。
或者，D2D指示信息也可以设置在PDCCH或EPDCCH中传输的新的DCI格式中的比特处。
或者，D2D指示信息也可以设置在系统广播信息块SIB1至SIB16中的一个或多个上。
或者，D2D指示信息也可以设置在新的系统广播信息块中的一个或多个上。
或者，也可以利用UE专有无线资源控制(RRC)信令来传输D2D指示信息。这里，该UE专有RRC信令可以为RadioResourceConfigDedicated信息单元。或者，该UE专有RRC信令也可以为RRCConnectionSetup message。
可选地，D2D指示信息还可以指示用于发送D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
备选地，第一发送单元110还被配置为向UE发送另一D2D授权信息。第二发送单元120还被配置为向UE发送另一D2D指示信息，所述另一D2D指示信息指示用于发送所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
以上针对D2D指示信息的发送所描述的示例也适用于另一D2D指示信息。
图2是根据本发明实施例的基站中的方法200的流程图。应注意，与上述基站100的实施例相结合描述的所有特征也适用于以下方法实施例。方法200可以由上述基站100来执行，并包括以下步骤。
在步骤S210，向用户设备UE发送设备至设备D2D授权信息。
在步骤S220，向UE发送D2D指示信息，所述D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
可选地，在步骤S220中，D2D指示信息还指示用于发送D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对 位置关系。
备选地，方法200还包括以下步骤(未示出)：向UE发送另一D2D授权信息；以及向UE发送另一D2D指示信息，所述另一D2D指示信息指示用于发送所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
图3示出了根据本发明实施例的UE 300的框图。如图所示，UE 300包括：接收单元310、确定单元320和发送单元330。本领域技术人员应理解，UE 300还包括实现其功能所必需的其他功能单元，如各种处理器、存储器等等。
接收单元310被配置为从基站接收设备至设备D2D授权信息，并从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
确定单元320被配置为根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一起始子帧。
发送单元330被配置为在第一起始子帧处开始发送D2D调度分配。
如上所述，这里，D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧的子帧编号之间的差值。例如，用于发送D2D授权信息的子帧编号为x，D2D指示信息指示的差值为y，则D2D指示信息指示UE从子帧编号z＝x+y开始发送D2D调度分配。
可选地，D2D指示信息还可以指示用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。在这种情况下，确定单元320还被配置为根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧。发送单元330还被配置为在第二起始子帧处开始发送D2D数据。
备选地，接收单元310还被配置为从基站接收另一D2D授权信息，并从基站接收另一D2D指示信息，所述另一D2D指示信息指示用于接收所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。在这种情况下，确定单元320还被配 置为根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧。发送单元330还被配置为在第二起始子帧处开始发送D2D数据。
关于D2D指示信息和另一D2D指示信息，以上结合基站100所描述的示例也适用于UE 300。
图4是根据本发明实施例的UE中的方法400的流程图。应注意，与上述UE 300的实施例相结合描述的所有特征也适用于以下方法实施例。方法400可以由上述UE 300来执行，并包括以下步骤。
在步骤S410，从基站接收设备至设备D2D授权信息。
在步骤S420，从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
在步骤S430，根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一起始子帧。
在步骤S440，在第一起始子帧处开始发送D2D调度分配。
可选地，所述D2D指示信息还可以指示用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。方法400还包括：根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及在第二起始子帧处开始发送D2D数据。
备选地，方法400还可以包括：从基站接收另一D2D授权信息；以及从基站接收另一D2D指示信息，所述另一D2D指示信息指示用于接收所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。方法400还可以包括：根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及在第二起始子帧处开始发送D2D数据。
图5示出了根据本发明实施例的UE 500的框图。如图所示，UE 500包括：接收单元510、确定单元520和发送单元530。
接收单元510被配置为从基站接收设备至设备D2D授权信息。
确定单元520被配置为根据用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一预定关系，确定UE 要用于发送D2D调度分配的第一起始子帧。
发送单元530被配置为在第一起始子帧处开始发送D2D调度分配。
可选地，发送单元530还被配置为在第一起始子帧处开始发送D2D数据。
在实施例中，第一起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
备选地，第一起始子帧是用于接收D2D授权信息的子帧之后的第k个子帧，其中k为大于或等于1的整数。
备选地，确定单元520还被配置为根据用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二预定关系，确定UE要用于发送D2D数据的第二起始子帧。发送单元530还被配置为在第二起始子帧处开始发送D2D数据。
在实施例中，第二起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
备选地，第二起始子帧是在用于接收D2D授权信息的子帧之后的第m个子帧，其中m为大于或等于1的整数。
图6是根据本发明实施例的UE中的方法600的流程图。应注意，与上述UE 400的实施例相结合描述的所有特征也适用于以下方法实施例。方法600可以由上述UE 400来执行，并包括以下步骤。
在步骤S610，从基站接收设备至设备D2D授权信息。
在步骤S620，根据用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一预定关系，确定UE要用于发送D2D调度分配的第一起始子帧。
在步骤S630，在第一起始子帧处开始发送D2D调度分配。
可选地，方法600还包括：在第一起始子帧处开始发送D2D数据。
在实施例中，第一起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
备选地，第一起始子帧是用于接收D2D授权信息的子帧之后的第k个子帧，其中k为大于或等于1的整数。
备选地，方法600还包括：根据用于接收D2D授权信息的子帧与 UE要用于发送D2D数据的第二起始子帧之间的第二预定关系，确定UE要用于发送D2D数据的第二起始子帧；以及在第二起始子帧处开始发送D2D数据。
在实施例中，第二起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
备选地，第二起始子帧是在用于接收D2D授权信息的子帧之后的第m个子帧，其中m为大于或等于1的整数。
根据本发明的实施例，UE可以根据用于D2D授权信息的子帧与用于D2D传输(D2D调度分配和/或D2D数据)的起始子帧之间的相对子帧位置关系，来确定用于D2D传输的起始子帧。其中，相对子帧位置关系可以是从基站接收的D2D指示信息动态指示的，或者是静态预定的。
应该理解，本发明的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”是指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本发明的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本发明的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本发明实施例所述的操作(方法)。本发明的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM 或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本发明实施例所描述的技术方案。
尽管以上已经结合本发明的优选实施例示出了本发明，但是本领域的技术人员将会理解，在不脱离本发明的精神和范围的情况下，可以对本发明进行各种修改、替换和改变。因此，本发明不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。

Claims (24)

  1. 一种用户设备UE，包括：
    接收单元，被配置为从基站接收设备至设备D2D授权信息，并从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系；
    确定单元，被配置为根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及
    发送单元，被配置为在第一起始子帧处开始发送D2D调度分配。
  2. 根据权利要求1所述的UE，其中
    所述D2D指示信息还指示用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系，
    确定单元还被配置为根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及
    发送单元还被配置为在第二起始子帧处开始发送D2D数据。
  3. 根据权利要求1所述的UE，其中
    接收单元还被配置为从基站接收另一D2D授权信息，并从基站接收另一D2D指示信息，所述另一D2D指示信息指示用于接收所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系，
    确定单元还被配置为根据第二相对位置关系，确定UE要用于发送D2D数据的第二起始子帧；以及
    发送单元还被配置为在第二起始子帧处开始发送D2D数据。
  4. 一种用户设备UE中的方法，包括：
    从基站接收设备至设备D2D授权信息；
    根据用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一预定关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及
    在第一起始子帧处开始发送D2D调度分配。
  5. 根据权利要求4所述的方法，还包括：
    在第一起始子帧处开始发送D2D数据。
  6. 根据权利要求4或5所述的方法，其中，所述第一起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
  7. 根据权利要求4或5所述的方法，其中，所述第一起始子帧是用于接收D2D授权信息的子帧之后的第k个子帧，其中k为大于或等于1的整数。
  8. 根据权利要求4所述的方法，还包括：
    根据用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二预定关系，确定UE要用于发送D2D数据的第二起始子帧；以及
    在第二起始子帧处开始发送D2D数据。
  9. 根据权利要求8所述的方法，其中，所述第二起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
  10. 根据权利要求8所述的方法，其中，所述第二起始子帧是在用于接收D2D授权信息的子帧之后的第m个子帧，其中m为大于或等于1的整数。
  11. 一种用户设备UE，包括：
    接收单元，被配置为从基站接收设备至设备D2D授权信息；
    确定单元，被配置为根据用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一预定关系，确定UE要用于发送D2D调度分配的第一起始子帧；以及
    发送单元，被配置为在第一起始子帧处开始发送D2D调度分配。
  12. 根据权利要求11所述的UE，其中
    发送单元还被配置为在第一起始子帧处开始发送D2D数据。
  13. 根据权利要求11或12所述的UE，其中，所述第一起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
  14. 根据权利要求11或12所述的UE，其中，所述第一起始子帧是用于接收D2D授权信息的子帧之后的第k个子帧，其中k为大于或等于 1的整数。
  15. 根据权利要求11所述的UE，其中
    确定单元还被配置为根据用于接收D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二预定关系，确定UE要用于发送D2D数据的第二起始子帧；以及
    发送单元还被配置为在第二起始子帧处开始发送D2D数据。
  16. 根据权利要求15所述的UE，其中，所述第二起始子帧是预先分配给D2D业务的子帧中在用于接收D2D授权信息的子帧之后的第一个子帧。
  17. 根据权利要求15所述的UE，其中，所述第二起始子帧是在用于接收D2D授权信息的子帧之后的第m个子帧，其中m为大于或等于1的整数。
  18. 一种基站中的方法，包括：
    向用户设备UE发送设备至设备D2D授权信息；以及
    向UE发送D2D指示信息，所述D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
  19. 根据权利要求18所述的方法，其中
    所述D2D指示信息还指示用于发送D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
  20. 根据权利要求18所述的方法，还包括：
    向UE发送另一D2D授权信息；以及
    向UE发送另一D2D指示信息，所述另一D2D指示信息指示用于发送所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
  21. 一种用户设备UE中的方法，包括：
    从基站接收设备至设备D2D授权信息；
    从基站接收D2D指示信息，所述D2D指示信息指示用于接收D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系；
    根据第一相对位置关系，确定UE要用于发送D2D调度分配的第一 起始子帧；以及
    在第一起始子帧处开始发送D2D调度分配。
  22. 一种基站，包括：
    第一发送单元，被配置为向用户设备UE发送设备至设备D2D授权信息；以及
    第二发送单元，被配置为向UE发送D2D指示信息，所述D2D指示信息指示用于发送D2D授权信息的子帧与UE要用于发送D2D调度分配的第一起始子帧之间的第一相对位置关系。
  23. 根据权利要求22所述的基站，其中
    所述D2D指示信息还指示用于发送D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
  24. 根据权利要求22所述的基站，其中
    第一发送单元还被配置为向UE发送另一D2D授权信息；以及
    第二发送单元还被配置为向UE发送另一D2D指示信息，所述另一D2D指示信息指示用于发送所述另一D2D授权信息的子帧与UE要用于发送D2D数据的第二起始子帧之间的第二相对位置关系。
PCT/CN2015/078387 2014-05-07 2015-05-06 基站、用户设备及相关方法 Ceased WO2015169224A1 (zh)

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