WO2013075581A1 - 终端直通的方法、终端直通终端和基站 - Google Patents

终端直通的方法、终端直通终端和基站 Download PDF

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Publication number
WO2013075581A1
WO2013075581A1 PCT/CN2012/084047 CN2012084047W WO2013075581A1 WO 2013075581 A1 WO2013075581 A1 WO 2013075581A1 CN 2012084047 W CN2012084047 W CN 2012084047W WO 2013075581 A1 WO2013075581 A1 WO 2013075581A1
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WO
WIPO (PCT)
Prior art keywords
uplink
subframe
terminal
transmission
scheduling signaling
Prior art date
Application number
PCT/CN2012/084047
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English (en)
French (fr)
Inventor
龚政委
尚政
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12852169.7A priority Critical patent/EP2785130A4/en
Publication of WO2013075581A1 publication Critical patent/WO2013075581A1/zh
Priority to US14/285,307 priority patent/US20140307660A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/104Peer-to-peer [P2P] networks
    • H04L67/1074Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037Inter-user or inter-terminal allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/121Wireless traffic scheduling for groups of terminals or users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present invention relate to the field of communications, and more specifically, to a method for terminal direct communication, a terminal through terminal, and a base station. Background technique
  • the inevitable trend of future wireless cellular communication networks is high speed, large capacity and higher quality of service (QoS, Qua ration of Service). How to effectively use limited bandwidth resources to achieve wireless broadband is particularly important.
  • QoS Quality of service
  • the rapid development of local services in the mobile Internet, such as video/music sharing also urgently needs to introduce new technologies to support existing cellular networks.
  • D2D Device-to-Device communication
  • the D2D terminal can directly maintain data communication with the other terminal directly or under the control of the base station, and simultaneously perform data communication with another terminal, thereby reducing the occupation of air interface resources, improving system throughput, and reducing communication delay. Reduce interference levels and save terminal energy.
  • the embodiment of the invention provides a D2D method, a D2D terminal and a base station, which can combine the characteristics of D2D communication and cellular communication to determine the transmission mode of D2D control signaling for different frame structures.
  • a D2D method including: receiving, in an nth downlink subframe, uplink scheduling signaling sent by a base station, where the uplink scheduling signaling is used to schedule D2D in the (n+m) uplink subframe Transmission, where n and m are positive integers; and D2D transmission is implemented in the (n+m)th uplink subframe according to uplink scheduling signaling.
  • a method for the terminal to directly pass through the D2D including: receiving, by the base station, a D2D request message sent by the terminal; according to the request message, the base station sends, to the terminal, uplink scheduling signaling in the nth subframe, the uplink scheduling signaling scheduling
  • the terminal implements D2D uplink transmission in the (n+m)th uplink subframe, where n and m are positive integers.
  • a D2D terminal including: a first receiving unit, configured to receive uplink scheduling signaling sent by a base station in an nth downlink subframe, where the uplink scheduling signaling is used to schedule (n+m) The D2D transmission in the uplink subframe, where n and m are positive integers; and the transmission unit is configured to implement D2D transmission in the (n+m)th uplink subframe according to the uplink scheduling signaling.
  • a base station including: a third receiving unit, configured to receive a D2D request message sent by the terminal; the first sending unit sends an uplink scheduling signaling to the terminal in the nth subframe according to the request message,
  • the uplink scheduling signaling scheduling terminal implements D2D uplink transmission in the (n+m)th uplink subframe, where n and m are positive integers.
  • the D2D method, the D2D terminal, and the base station in the embodiment of the present invention can learn different D2D control signaling transmission modes when different frame structures are defined.
  • FIG. 1 is a flow chart of a method of D2D in accordance with one embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of D2D in accordance with another embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a D2D terminal according to an embodiment of the present invention.
  • FIG. 4 is a partial structural diagram of a D2D terminal according to an embodiment of the present invention.
  • FIG. 5 is another partial structural diagram of a D2D terminal according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a D2D terminal according to another embodiment of the present invention.
  • FIG. 7 is a partial schematic structural diagram of a D2D terminal according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a D2D terminal according to still another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a D2D terminal according to still another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a base station according to another embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a base station according to still another embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a base station according to still another embodiment of the present invention. detailed description
  • the uplink and downlink data transmission of the terminal is based on an explicit frame structure, and is implemented based on the received different scheduling signaling, that is, the uplink scheduling signaling received in the nth subframe respectively (for example, uplink) Authorization (UL grant;) and downlink scheduling signaling (eg, downlink grant (DL grant)) received in the nth subframe to schedule the n+th subframe (eg, the n+4th subframe)
  • the physical uplink shared channel (PUSCH, Phys ica l upl shar ing channe l ) is transmitted with the physical downlink shared channel (PDSCH, Phys ica l downl shar ing channe l ) in the nth subframe.
  • the D2D terminal clarifies the transmission and reception status of each subframe or only clarifies that the subframe is a D2D subframe, the scheduling manner may require a new design.
  • the (n+ml) uplink subframe and the (n+m2) uplink subframe are used for the convergence of the D2D communication, respectively; accordingly, for the second D2D terminal,
  • the (n+ml) uplink subframe and the (n+m2) uplink subframe are used for transmission and reception of D2D communication, respectively. It can be understood that n, ml and m2 are all positive integers, and ml should not be equal to m2.
  • the base station does not need to go to the subframe in the subframe n.
  • a D2D terminal transmits uplink scheduling signaling of cellular communication.
  • the second D2D terminal needs to send the D2D transmission in the (n+ml) uplink subframe.
  • the terminal does not support different processes to transmit to different sites respectively, since the PUSCH transmission of the cellular communication cannot be implemented, the subframe is also in the subframe.
  • the base station in n also does not need to transmit uplink scheduling signaling of cellular communication to the second D2D terminal.
  • the D2D method includes:
  • the uplink scheduling signaling sent by the base station is received in the nth downlink subframe of the D2D terminal, where the uplink scheduling signaling is used to schedule D2D transmission in the (n+m)th uplink subframe, where n and m are A positive integer.
  • the D2D terminal Before the D2D terminal receives the uplink scheduling signaling from the base station, the D2D terminal usually sends a D2D request message to the base station.
  • the D2D terminal since the D2D terminal has clarified that its (n+m)th uplink subframe is a D2D subframe, that is, the terminal supports D2D transmission.
  • a configuration letter sent by the base station can also be received in the nth downlink subframe of the D2D terminal.
  • the configuration signaling is further used to indicate a D2D transceiving state in the (n+m)th uplink subframe in which the D2D terminal is configured.
  • the D2D terminal implements D2D transmission in the (n+m)th uplink subframe according to the uplink scheduling signaling.
  • the D2D terminal when the D2D terminal not only clarifies that the subframe structure is a D2D subframe but also clarifies the transmission and reception state of the D2D subframe, if it is determined according to the configuration signaling that the (n+m)th uplink subframe of the D2D terminal is a D2D reception subframe, The D2D terminal implements D2D reception in the (n+m)th uplink subframe; or if the (n+m)th uplink subframe of the D2D terminal is determined to be a D2D transmission subframe according to the configuration signaling, the D2D terminal is in the (n) +m ) D2D transmission is implemented in the uplink subframe.
  • the base station in the nth subframe, the base station does not send the uplink scheduling of the cellular communication to the D2D terminal, but sends the uplink scheduling signaling to the D2D terminal, and is used to schedule the D2D transmission in the (n+m)th subframe. That is, the D2D terminal in the transmitting subframe implements the (n+m)th intra-frame D2D transmission based on the uplink scheduling signaling in the nth subframe, and the D2D terminal in the receiving subframe is based on the uplink scheduling information in the nth subframe. Enable D2D reception within (n+m) sub-frames.
  • D2D transmission and D2D reception utilize the uplink frequency division duplex (FDD) resources in the existing cellular communication
  • D2D transmission and D2D reception can also be referred to as “D2D uplink transmission” and "" respectively.
  • D2D uplink reception can also be referred to as "D2D uplink transmission" and "" respectively.
  • the method for directly transmitting the D2D of the terminal can combine the characteristics of the D2D communication and the cellular communication, and can determine the transmission mode of the D2D control signaling when the subframe structure and the transmission and reception state of the D2D terminal are clarified. .
  • the D2D terminal can only clarify that its subframe structure is a D2D subframe and cannot clear the transmission and reception state of the D2D subframe, in order to make the D2D communication between the D2D terminals work normally, it is necessary to consider configuring the D2D subroutine in some way.
  • the status of the frame is sent and received.
  • the D2D terminal may implement D2D transmission in the (n+m)th uplink subframe according to the number of uplink scheduling signaling received in the nth uplink subframe; or the D2D terminal may also be uplinked according to the uplink.
  • the information carried in the scheduling signaling is different, and the D2D transmission is implemented in the (n+m)th uplink subframe.
  • the D2D terminal determines to implement D2D transmission in the (n+m)th uplink subframe according to the first time uplink scheduling signaling received in the nth uplink subframe, or the D2D terminal according to the first
  • the second number of uplink scheduling signaling received in the uplink subframe determines that D2D reception is implemented in the (n+m)th uplink subframe.
  • the operation of D2D reception or D2D transmission by the D2D terminal can be distinguished by different times of uplink scheduling signaling transmitted by the base station. If, in the nth subframe, the base station sends one uplink scheduling signaling to the D2D terminal, and is used to schedule D2D transmission in the (n+m)th uplink subframe of the D2D terminal, that is, the D2D terminal obtains 1 by blind solution. For uplink scheduling signaling, D2D transmission is implemented in the (n+m)th uplink subframe.
  • the base station sends two uplink scheduling signalings to the D2D terminal for scheduling D2D reception in the (n+m) uplink subframe of the D2D terminal, that is, the D2D terminal obtains two by blind solution.
  • D2D reception is implemented in the (n+m)th uplink subframe.
  • the D2D terminal implements D2D transmission in the (n+m) uplink subframe according to different information carried in the uplink scheduling signaling. If the information therein indicates reception, the D2D terminal implements D2D reception in the (n+m)th uplink subframe; if the information therein indicates transmission, the D2D terminal implements D2D transmission in the (n+m)th uplink subframe.
  • the information may be a cell number field (CIF, Ce l Index Fie ld ) bit information or a Hopping F lag bit information.
  • the base station indicates D2D reception or D2D transmission by transmitting uplink scheduling signaling including CIF and utilizing CIF bit information therein. It is assumed that, in the nth subframe, the D2D terminal obtains uplink scheduling signaling by blind decoding, and according to the indication content of the CIF bit information, the D2D terminal thus implements D2D transmission or D2D reception in the (n+m)th uplink subframe.
  • some bit information in the traditional uplink scheduling signaling is used to indicate, for example, that the frequency hopping indicates a corresponding bit to distinguish between D2D reception or D2D transmission.
  • the D2D terminal obtains uplink scheduling signaling by blind decoding, and according to the frequency hopping indication bit information, the D2D terminal thereby implements D2D transmission or D2D reception in the (n+m) uplink subframe.
  • the method for the terminal to directly pass through the D2D can be combined with the D2D.
  • the characteristics of communication and cellular communication can also determine the transmission mode of D2D control signaling only when the subframe structure of the D2D terminal is clarified and the transmission and reception state is not specified.
  • the method for the terminal to pass through the D2D implemented by the base station includes:
  • the base station sends uplink scheduling signaling to the D2D terminal in the nth subframe, where the uplink scheduling signal schedules the D2D terminal to implement D2D uplink transmission in the (n+m) uplink subframe, where n and m are positive integers.
  • the base station sends uplink scheduling signaling to the D2D terminal after receiving the D2D request message sent by the D2D terminal.
  • the base station may send different times of uplink scheduling signaling or uplink scheduling signaling carrying different information to the terminal, so that the terminal sends the uplink scheduling signaling according to different uplink scheduling signaling.
  • the method for the terminal to directly pass through the D2D can combine the characteristics of the D2D communication and the cellular communication, and can determine the D2D control signaling only when the subframe structure of the D2D terminal is unclear and the transmission and reception state is not clear. The way of transmission.
  • the base station if the base station sends configuration signaling to the terminal in the nth subframe, the base station further instructs the D2D transmission and reception state in the (n+m)th uplink subframe of the configuration terminal.
  • the configuration signaling further indicates that the (n+m)th uplink subframe of the terminal is a D2D receiving subframe or a D2D transmitting subframe, so that the terminal is in the (n+m) uplink subframe after receiving the uplink scheduling signaling. Realize uplink reception or uplink transmission of D2D.
  • the method for the terminal to directly pass through the D2D can combine the characteristics of the D2D communication and the cellular communication, and can also determine the transmission of the D2D control signaling when the subframe structure and the transmission and reception state of the D2D terminal are clarified. the way.
  • a D2D terminal according to an embodiment of the present invention will be described below with reference to FIG.
  • the D2D terminal 30 includes a first receiving unit 31 and a transmitting unit 32. among them, The first receiving unit 31 is configured to receive uplink scheduling signaling sent by the base station in the nth downlink subframe, where the uplink scheduling signaling is used to schedule D2D transmission in the (n+m)th uplink subframe, where n, m Is a positive integer.
  • the transmitting unit 32 is configured to implement D2D transmission in the (n+m)th uplink subframe according to the uplink scheduling signaling.
  • the transmitting unit 32 is further configured to implement D2D transmission in the (n+m)th uplink subframe according to the number of times of the uplink scheduling signaling received by the first receiving unit 31; or according to the received by the first receiving unit 31.
  • the information carried in the uplink scheduling signaling implements D2D transmission in the (n+m)th uplink subframe.
  • the transmitting unit 32 includes an uplink sending module 321 configured to implement D2D transmission in the (n+m)th uplink subframe according to the first time uplink scheduling signaling received by the first receiving unit 31;
  • the receiving module 322 is configured to implement D2D reception in the (n+m)th uplink subframe according to the second-order uplink scheduling signaling received by the first receiving unit 31, as shown in FIG.
  • the transmitting unit 32 includes an uplink receiving module 323. If the information carried in the uplink scheduling signaling received by the first receiving unit 31 indicates reception, the uplink receiving module 321 implements D2D in the (n+m) uplink subframe. And receiving, by the uplink sending module 324, if the information carried in the uplink scheduling signaling received by the first receiving unit 31 indicates the sending, the uplink sending module 324 implements the sending of the D2D in the (n+m)th uplink subframe. , as shown in Figure 5.
  • the above information may be cell number field bit information or frequency hopping indication bit information.
  • FIG. 6 A schematic structural diagram of another D2D terminal according to an embodiment of the present invention is shown in FIG.
  • the D2D terminal 60 in addition to the first receiving unit 61 and the transmitting unit 62, the D2D terminal 60 further includes a second receiving unit 63, which is configured to receive configuration signaling sent by the base station in the nth downlink subframe.
  • the configuration signaling is used to indicate a D2D transceiving state in the (n+m)th uplink subframe.
  • the first receiving unit 61 and the transmitting unit 62 have the same functions and structures as the first receiving unit 31 and the transmitting unit 32 in Fig. 3.
  • the transmission unit 62 may further include an uplink receiving module 621 for determining the (n+m) according to the configuration signaling.
  • the D2D reception is implemented in the (n+m)th uplink subframe according to the uplink scheduling signaling; and the uplink sending module 622 is configured to determine the first according to the configuration signaling (
  • n+m) the uplink subframe is a D2D transmission subframe, D2D transmission is implemented in the (n+m)th uplink subframe according to the uplink scheduling signaling, as shown in FIG. 7.
  • FIG. 8 and 9 A schematic structural view of a D2D terminal according to other embodiments of the present invention is shown in Figs. 8 and 9. As shown in FIG. 8 and FIG. 9, the D2D terminals are added to the D2D terminal 30 of FIG. 3 and the D2D terminal 60 of FIG. 6, respectively, before the uplink scheduling signaling sent by the base station in the nth downlink subframe is added.
  • a first transmitting unit that transmits a D2D request message to the base station that is, a first transmitting unit 33 as shown in FIG. 8 and a first transmitting unit 64 as shown in FIG.
  • the terminal through D2D terminal can combine the characteristics of the D2D communication and the cellular communication, in the case of only defining the subframe structure of the D2D terminal or both the frame structure of the D2D terminal by the explicit subframe.
  • the transmission mode of the D2D control signaling can be determined.
  • Figure 10 illustrates a base station supporting D2D in accordance with an embodiment of the present invention.
  • the base station 100 includes a generating unit 101 and a second sending unit 102, where the generating unit 101 is configured to generate a D2D request message, and the second sending unit 102 sends an uplink scheduling signaling to the terminal in the nth subframe, the uplink scheduling signaling scheduling.
  • the terminal implements D2D uplink transmission in the (n+m)th uplink subframe, where n and m are positive integers.
  • the second sending unit 102 is further configured to send, to the terminal, different times of uplink scheduling signaling or uplink scheduling signaling that carries different information, so that the terminal is configured according to different times of uplink scheduling signaling or different information carried by the uplink scheduling signaling.
  • the uplink reception or uplink transmission of D2D is implemented in the (n+m) uplink subframe.
  • the base station supporting D2D may further have a structure as shown in FIG.
  • the base station 110 may further include a third transmitting unit 113, wherein the generating unit 111 and the second transmitting unit 112 are the generating unit 101 and the second in FIG.
  • the transmitting unit 102 has the same function and structure.
  • the first The three transmitting unit 11 3 sends configuration signaling to the terminal in the nth subframe, where the configuration signaling indicates the D2D transceiving state in the (n+m)th uplink subframe of the configuration terminal.
  • the configuration signaling further indicates that the (n+m)th uplink subframe of the terminal is a D2D subframe or a D2D transmission subframe, so that the terminal uplinks at (n+m) after receiving the uplink scheduling signaling.
  • Uplink reception or uplink transmission of D2D is implemented in a subframe.
  • FIG. 12 and FIG. 13 A schematic structural view of a base station according to other embodiments of the present invention is shown in Figs. 12 and 13. As shown in FIG. 12 and FIG. 13 , the base station is added to the base station 100 of FIG. 10 and the base station 1 10 of FIG. 11 to send uplink scheduling signaling to the terminal in the nth subframe.
  • the third receiving unit that receives the D2D request message sent by the terminal that is, the third receiving unit 103 shown in FIG. 12 and the third receiving unit 114 shown in FIG.
  • the base station according to the embodiment of the present invention can combine the characteristics of the D2D communication and the cellular communication, and only when the subframe structure of the D2D terminal is clarified or the subframe structure of the D2D terminal is clearly determined by the transmission and reception state of the explicit subframe. In this case, the transmission mode of D2D control signaling can be determined.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the unit is only a logical function division, and the actual implementation
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM, Random Acces s Memory), a magnetic disk or an optical disk, and the like, which can store program codes. medium.

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Abstract

本发明实施例提供了一种终端直通的方法、终端直通终端和基站。其中,终端直通D2D的方法包括:终端在第n下行子帧内接收基站发送的上行调度信令,该上行调度信令用于调度第(n+m)上行子帧内的D2D的传输,其中n、m为正整数;终端根据上行调度信令在第(n+m)上行子帧内实现D2D的传输。本发明实施例的D2D的方法、D2D终端和基站可以在明确不同的帧结构的情况下,釆取不同的D2D控制信令的传输方式。

Description

终端直通的方法、 终端直通终端和基站 本申请要求于 2011 年 11 月 24 日提交中国专利局、 申请号为 CN 201110378144. 7 , 发明名称为 "终端直通的方法、 终端直通终端和基站" 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
本发明实施例涉及通信领域, 并且更具体地, 涉及终端直通的方法、 终端直通终端和基站。 背景技术
未来无线蜂窝通信网络的必然趋势是高速率、 大容量以及更高的服务 质量(QoS , Qua l i ty of Service ), 如何有效使用有限的带宽资源实现无 线宽带化显得尤为重要。 而当前移动互联网中迅猛发展的本地业务, 例如 视频 /音乐分享, 也迫切需要在现有蜂窝网中引入新的技术来支持。 为了提 高空口频谱使用效率, 降低传统蜂窝网的沉重负载, 获得更高的系统吞吐 量, 蜂窝网络下的终端直通 ( Device-to-Device communi ca t ion, D2D )研 究曰益受到重视。 D2D的终端可以直接或在基站控制下, 在继续保持通过基 站进行的通信同时, 与另一个终端直接进行数据通信, 从而降低空口资源 的占用, 提高系统吞吐率, 同时还可以减少通信延时、 降低干扰水平、 节 省终端能量。
目前, 针对 D2D通信系统的标准研究方案并不多, 考虑到 D2D通信对 终端的软硬件要求与传统的终端有很大不同, 考虑到 D2D通信终端设计的 复杂度以及蜂窝通信之间的复用与干扰等多种因素, 一种 D2D通信方式就 是基于蜂窝通信的集中式控制方式, 利用上行资源以及对应的传输方式实 现 D2D传输。 显然, 实现该类 D2D通信的终端需增加上行接收模块。 发明内容
本发明实施例提出 D2D的方法、 D2D终端和基站, 能够结合 D2D通信 以及蜂窝通信的特点, 针对不同的帧结构确定 D2D控制信令的传输方式。
一方面, 提供了一种 D2D的方法, 包括: 在第 n下行子帧内接收基站 发送的上行调度信令,该上行调度信令用于调度第( n+m )上行子帧内的 D2D 的传输, 其中 n、 m为正整数; 根据上行调度信令在第 (n+m )上行子帧内 实现 D2D的传输。
另一方面, 提供了一种终端直通 D2D的方法, 包括: 基站接收终端发 送的 D2D的请求消息; 根据请求消息, 基站在第 n子帧内向终端发送上行 调度信令, 该上行调度信令调度终端在第 (n+m )上行子帧内实现 D2D的上 行传输, 其中 n、 m为正整数。
再一方面, 提供了一种 D2D终端, 包括: 第一接收单元, 用于在第 n 下行子帧内接收基站发送的上行调度信令, 该上行调度信令用于调度第 ( n+m )上行子帧内的 D2D的传输, 其中 n、 m为正整数; 传输单元, 用于 根据上行调度信令在第 ( n+m )上行子帧内实现 D2D的传输。
又一方面, 提供了一种基站, 包括: 第三接收单元, 用于接收终端发 送的 D2D的请求消息; 第一发送单元, 根据请求消息, 在第 n子帧内向终 端发送上行调度信令, 该上行调度信令调度终端在第 (n+m )上行子帧内实 现 D2D的上行传输, 其中 n、 m为正整数。
本发明实施例的 D2D的方法、 D2D终端和基站可以在明确不同的帧结 构的情况下, 釆取不同的 D2D控制信令的传输方式。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例或现有 技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的 附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付 出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是根据本发明一个实施例的 D2D的方法的流程图。
图 2是根据本发明另一实施例的 D2D的方法的流程图。
图 3是才艮据本发明一个实施例的 D2D终端的结构示意图。
图 4是才艮据本发明一个实施例的 D2D终端的局部结构示意图。
图 5是才艮据本发明一个实施例的 D2D终端的另一局部结构示意图。 图 6是根据本发明另一实施例的 D2D终端的结构示意图。
图 7是才艮据本发明另一实施例的 D2D终端的局部结构示意图。
图 8是才艮据本发明再一实施例的 D2D终端的结构示意图。
图 9是根据本发明又一实施例的 D2D终端的结构示意图。
图 10是根据本发明一个实施例的基站的结构示意图。
图 11是根据本发明另一实施例的基站的结构示意图。
图 12是根据本发明再一实施例的基站的结构示意图。
图 1 3是根据本发明又一实施例的基站的结构示意图。 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在没有 作出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范 围。
在现有 LTE技术中, 终端的上下行数据传输是基于明确的帧结构, 并 基于接收到的不同调度信令来实现, 即分别由第 n子帧内接收的上行调度 信令(例如, 上行授权( UL grant;) )和第 n子帧内接收的下行调度信令(例 如, 下行授权(DL grant ) )来调度第 n+m子帧 (例如, 第 n+4子帧) 内的 物理上行共享信道 ( PUSCH , Phys ica l upl ink shar ing channe l ) 与第 n 子帧内的物理下行共享信道 ( PDSCH, Phys ica l downl ink shar ing channe l ) 传输。 然而, 对于 D2D通信, 由于其引入了以下特点, 例如 D2D终端明确 各个子帧的收发状态或只明确该子帧为 D2D子帧, 其调度方式可能需要新 的设计。
殳设, 对于第一 D2D终端, 当其第 (n+ml )上行子帧和第 ( n+m2 )上 行子帧分别用于 D2D通信的收和发;相应地,对于第二 D2D终端,其第( n+ml ) 上行子帧和第 (n+m2 )上行子帧分别用于 D2D通信的发和收。 可理解, n、 ml和 m2均为正整数, 且 ml应不等于 m2。
此外, 由于 D2D终端的半双工特点, 当第一 D2D终端在第 (n+ml )上 行子帧内需接收 D2D传输, 由于无法实现蜂窝通信的 PUSCH传输, 因此在 子帧 n内基站无需向第一 D2D终端传输蜂窝通信的上行调度信令。 另外, 第二 D2D终端在第 ( n+ml )上行子帧内需发送 D2D传输, 考虑到目前终端 不支持分别用不同进程传输给不同站点, 由于同样无法实现蜂窝通信的 PUSCH传输,因此在子帧 n内基站也无需向第二 D2D终端传输蜂窝通信的上 行调度信令。
下面参照图 1描述才艮据本发明实施例的终端直通 D2D的方法。
如图 1所示, D2D的方法包括: 包括:
11 , 在 D2D终端的第 n下行子帧内接收由基站发送的上行调度信令, 该上行调度信令用于调度第 (n+m )上行子帧内的 D2D 的传输, 其中 n、 m 为正整数。
一般而言, D2D终端从基站接收上行调度信令之前, D2D终端通常会 向基站发送 D2D的请求消息。
此时, 由于 D2D终端已明确其第 (n+m )上行子帧为 D2D子帧, 也就 是说, 该终端支持 D2D的传输。
假设, 在 D2D终端的第 n下行子帧内还能接收到由基站发送的配置信 令, 而且该配置信令进一步用于指示配置该 D2D终端的第 (n+m )上行子帧 内的 D2D收发状态。
12 , 该 D2D终端将根据上述上行调度信令在第 (n+m )上行子帧内实 现 D2D的传输。
即, 当 D2D终端不但明确子帧结构为 D2D子帧而且也明确该 D2D子帧 的收发状态, 如果根据配置信令确定 D2D终端的第 (n+m )上行子帧为 D2D 接收子帧, 则 D2D终端在第 (n+m )上行子帧内实现 D2D的接收; 或者如果 根据配置信令确定 D2D终端的第 (n+m )上行子帧为 D2D发送子帧, 则 D2D 终端在第 (n+m )上行子帧内实现 D2D的发送。
上述过程可以总结为: 第 n子帧内, 基站不给 D2D终端发送蜂窝通信 的上行调度, 而给 D2D终端发送上行调度信令, 用于调度第 (n+m )子帧内 的 D2D传输, 即处于发送子帧的 D2D终端基于第 n子帧内的上行调度信令 实现第 (n+m )子帧内 D2D发送, 而处于接收子帧的 D2D终端基于第 n子帧 内的上行调度信令实现( n+m )子帧内 D2D接收。 由于 D2D发送和 D2D接收 都要利用现有蜂窝通信中的上行频分双工 ( FDD , Frequency Divi s ion Duplexing ) 资源, 因此也可以将 D2D发送和 D2D接收分别称作 "D2D上行 发送" 和 "D2D上行接收"。
由此可见, 根据本发明实施例的终端直通 D2D的方法, 能够结合 D2D 通信以及蜂窝通信的特点, 在明确 D2D终端的子帧结构以及收发状态的情 况下, 可以确定 D2D控制信令的传输方式。
但是,如果 D2D终端仅能明确其子帧结构为 D2D子帧而无法明确该 D2D 子帧的收发状态, 那么为了使 D2D终端之间的 D2D通信正常进行, 就要考 虑通过某种方法配置 D2D子帧的收发状态。 例如, D2D终端可以根据在第 n 上行子帧内接收到的上行调度信令的个数的不同, 而在第 (n+m )上行子帧 内实现 D2D的传输; 或者 D2D终端也可以根据上行调度信令中所携带的信 息的不同, 而在第 (n+m )上行子帧内实现 D2D的传输。 具体而言, D2D终端根据在第 n上行子帧内接收到的第一次数的上行 调度信令来确定在第 (n+m )上行子帧内实现 D2D的发送, 或者 D2D终端根 据在第 n上行子帧内接收到的第二次数的上行调度信令来确定在第 (n+m ) 上行子帧内实现 D2D的接收。
例如, D2D终端进行 D2D接收或 D2D发送的操作可以通过基站传输的 不同次数的上行调度信令来区分。 假如, 在第 n子帧内, 基站给 D2D终端 发送 1个上行调度信令, 用于调度 D2D终端的第 (n+m )上行子帧内的 D2D 发送, 即 D2D终端通过盲解而获得 1个上行调度信令, 就在第 (n+m )上行 子帧内实现 D2D发送。 假如, 在第 n子帧内, 基站给 D2D终端发送 2个上 行调度信令,用于调度 D2D终端的第( n+m )上行子帧内的 D2D接收, 即 D2D 终端通过盲解获得 2个上行调度信令, 则在第 ( n+m )上行子帧内实现 D2D 接收。
此外, D2D 终端根据上行调度信令中所携带的信息的不同, 而在第 ( n+m )上行子帧内实现 D2D的传输。 如果其中的信息指示接收, D2D终端 在第 (n+m )上行子帧内实现 D2D 的接收; 如果其中的信息指示发送, D2D 终端在第( n+m )上行子帧内实现 D2D的发送。该信息可以是小区编号域( CIF, Ce l l Index Fie ld ) 比特信息或者跳频指示 ( Hopping F lag ) 比特信息。
例如, 基站通过发送包含 CIF的上行调度信令, 并利用其中的 CIF比 特信息来指示 D2D接收或 D2D发送。 假设, 在第 n子帧内, D2D终端通过盲 解获得上行调度信令, 再根据 CIF比特信息的指示内容, D2D终端从而在 第 (n+m )上行子帧内实现 D2D发送或 D2D接收。
或者, 利用传统上行调度信令中的某些比特信息来指示, 例如, 跳频 指示对应的一个比特来区别 D2D接收或 D2D发送。 例如, 在第 n子帧内, D2D终端通过盲解获得上行调度信令, 再根据跳频指示比特信息, D2D终端 从而在第 ( n+m )上行子帧内实现 D2D发送或 D2D接收。
由此可见, 根据本发明实施例的终端直通 D2D的方法, 能够结合 D2D 通信以及蜂窝通信的特点, 仅在明确 D2D终端的子帧结构而不明确收发状 态的情况下, 也可以确定 D2D控制信令的传输方式。
相应地, 如图 2所示, 为了实现上述的 D2D控制信令的传输, 根据本 发明实施例的由基站所实现的终端直通 D2D的方法, 包括:
21 , 基站在第 n子帧内向 D2D终端发送上行调度信令, 该上行调度信 令调度 D2D终端在第 (n+m )上行子帧内实现 D2D的上行传输, 其中 n、 m 为正整数。
一般而言, 基站会在接收到由 D2D终端发送的 D2D的请求消息之后, 向 D2D终端发送上行调度信令。
在仅明确 D2D终端的子帧结构而不明确收发状态的情况下, 基站可以 向终端发送不同次数的上行调度信令或者携带不同信息的上行调度信令, 以便终端根据上行调度信令的不同发送次数或者所携带的不同信息在第 ( n+m )上行子帧内实现 D2D的上行接收或上行发送。
由此可见, 根据本发明实施例的终端直通 D2D的方法, 能够结合 D2D 通信以及蜂窝通信的特点, 仅在明确 D2D终端的子帧结构而不明确收发状 态的情况下, 可以确定 D2D控制信令的传输方式。
或者, 如果基站在第 n子帧内向终端发送配置信令, 进一步指示配置 终端的第 (n+m )上行子帧内的 D2D收发状态。 例如, 配置信令进一步指示 终端的第 (n+m )上行子帧为 D2D接收子帧或 D2D发送子帧, 以便终端在接 收到上行调度信令后在第 ( n+m )上行子帧内实现 D2D的上行接收或上行发 送。
由此可见, 根据本发明实施例的终端直通 D2D的方法, 能够结合 D2D 通信以及蜂窝通信的特点, 在明确 D2D终端的子帧结构以及收发状态的情 况下, 也可以确定 D2D控制信令的传输方式。
下面将结合图 3说明根据本发明实施例的 D2D终端。
在图 3中, D2D终端 30包括第一接收单元 31和传输单元 32。 其中, 第一接收单元 31用于在第 n下行子帧内接收基站发送的上行调度信令, 该 上行调度信令用于调度第 (n+m )上行子帧内的 D2D的传输, 其中 n、 m为 正整数。 传输单元 32 用于根据该上行调度信令在第 (n+m )上行子帧内实 现 D2D的传输。
此时, 传输单元 32进一步用于根据第一接收单元 31接收到的上行调 度信令的次数在第 (n+m )上行子帧内实现 D2D的传输; 或者根据第一接收 单元 31 接收到的上行调度信令中所携带的信息在第 (n+m )上行子帧内实 现 D2D的传输。
因此,传输单元 32包括上行发送模块 321 , 其用于根据第一接收单元 31接收到的第一次数的上行调度信令在第( n+m )上行子帧内实现 D2D的发 送; 以及上行接收模块 322 , 其用于根据第一接收单元 31接收到的第二次 数的上行调度信令在第 (n+m )上行子帧内实现 D2D的接收, 如图 4所示。
或者, 传输单元 32包括上行接收模块 323, 如果第一接收单元 31接 收到的上行调度信令中所携带的信息指示接收, 则上行接收模块 321 在第 ( n+m )上行子帧内实现 D2D的接收; 以及上行发送模块 324 , 如果第一接 收单元 31接收到的上行调度信令中所携带的信息指示发送, 则上行发送模 块 324在第 (n+m )上行子帧内实现 D2D的发送, 如图 5所示。 其中上述信 息可以是小区编号域比特信息, 也可以是跳频指示比特信息。
在图 6中示出了根据本发明实施例的另一 D2D终端的结构示意图。 如 图 6所示, 除了第一接收单元 61和传输单元 62 , D2D终端 60还包括第二 接收单元 63 ,该第二接收单元 63用于在第 n下行子帧内接收基站发送的配 置信令, 该配置信令用于指示配置第 ( n+m )上行子帧内的 D2D收发状态。 第一接收单元 61和传输单元 62与图 3中的第一接收单元 31和传输单元 32 具有相同的功能及结构。
此时, 由于明确了 D2D终端的子帧结构以及收发状态, 因此传输单元 62还可以包括上行接收模块 621 , 其用于在根据配置信令确定第 ( n+m )上 行子帧为 D2D接收子帧的情况下, 根据上行调度信令在第 (n+m )上行子帧 内实现 D2D的接收; 以及上行发送模块 622 , 其用于在根据配置信令确定第 ( n+m )上行子帧为 D2D发送子帧的情况下, 根据上行调度信令在第 (n+m ) 上行子帧内实现 D2D的发送, 如图 7所示。
在图 8和图 9中示出了根据本发明其他实施例的 D2D终端的结构示意 图。 如图 8和图 9所示, 其中的 D2D终端分别是在图 3的 D2D终端 30以及 图 6的 D2D终端 60的基础上增加了在第 n下行子帧内接收基站发送的上行 调度信令之前, 向所述基站发送 D2D的请求消息的第一发送单元, 即如图 8 所示的第一发送单元 33和如图 9所示的第一发送单元 64。
由此可见, 根据本发明实施例的终端直通 D2D终端, 能够结合 D2D通 信以及蜂窝通信的特点, 在仅明确 D2D终端的子帧结构情况下或者既明确 D2D终端的子帧结构由明确子帧的收发状态的情况下,均可以确定 D2D控制 信令的传输方式。
相应地, 图 10示出了根据本发明实施例的支持 D2D的基站。基站 100 包括生成单元 101和第二发送单元 102 ,其中生成单元 101用于生成 D2D的 请求消息, 而第二发送单元 102在第 n子帧内向终端发送上行调度信令, 该上行调度信令调度终端在第 (n+m )上行子帧内实现 D2D的上行传输, 其 中 n、 m为正整数。
第二发送单元 102进一步用于向终端发送不同次数的上行调度信令或 者携带不同信息的上行调度信令, 以便终端根据上行调度信令的不同发送 次数或者上行调度信令的携带的不同信息在第 (n+m )上行子帧内实现 D2D 的上行接收或上行发送。
或者, 根据本发明实施例的支持 D2D的基站还可以具有如图 11所示 的结构。 如图 11所示, 除了生成单元 111和第二发送单元 112 , 基站 110 还可以包括第三发送单元 113 ,其中该生成单元 111和第二发送单元 112与 图 10中的生成单元 101和第二发送单元 102具有相同的功能及结构。 该第 三发送单元 11 3在第 n子帧内向终端发送配置信令, 其中配置信令指示配 置终端的第 (n+m )上行子帧内的 D2D收发状态。 该配置信令进一步指示终 端的第 (n+m )上行子帧为 D2D子帧为 D2D接收子帧或 D2D发送子帧, 以便 终端在接收到上行调度信令后在第 ( n+m )上行子帧内实现 D2D的上行接收 或上行发送。
在图 12 和图 1 3 中示出了根据本发明其他实施例的基站的结构示意 图。如图 12和图 1 3所示, 其中的基站分别是在图 10的基站 100以及图 1 1 的基站 1 10的基础上增加了用于在第 n子帧内向终端发送上行调度信令之 前, 接收所述终端发送的 D2D的请求消息的第三接收单元, 即如图 12所示 的第三接收单元 103和如图 1 3所示的第三接收单元 1 14。
由此可见, 根据本发明实施例的基站, 能够结合 D2D通信以及蜂窝通 信的特点, 在仅明确 D2D终端的子帧结构情况下或者既明确 D2D终端的子 帧结构由明确子帧的收发状态的情况下, 均可以确定 D2D控制信令的传输 方式。
本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的 各示例的单元及算法步骤, 能够以电子硬件、 或者计算机软件和电子硬件 的结合来实现。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方 案的特定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使 用不同方法来实现所描述的功能, 但是这种实现不应认为超出本发明的范 围。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述 描述的系统、 装置和单元的具体工作过程, 可以参考前述方法实施例中的 对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置 和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅 是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实 现时可以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成 到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论 的相互之间的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单 元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。 作为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地 方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的 部分或者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在 一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或 使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本 发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案 的部分可以以软件产品的形式体现出来, 该计算机软件产品存储在一个存 储介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述方法的全部或部分 步骤。而前述的存储介质包括: U盘、移动硬盘、只读存储器( ROM, Read-Only Memory ), 随机存取存储器 ( RAM, Random Acces s Memory ), 磁碟或者光盘 等各种可以存储程序代码的介质。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应所述以权利要求的保护范围为准。

Claims

权利要求
1、 一种终端直通 D2D的方法, 其特征在于, 包括:
在第 n下行子帧内接收基站发送的上行调度信令, 所述上行调度信令 用于调度第 (n+m )上行子帧内的 D2D的传输, 其中 n、 m为正整数;
根据所述上行调度信令在第 ( n+m )上行子帧内实现 D2D的传输。
2、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 在第 n下行子帧内接收基站发送的配置信令, 所述配置信令用于指示 配置第 (n+m )上行子帧内的 D2D收发状态。
3、 根据权利要求 2所述的方法, 其特征在于, 所述根据所述上行调度 信令在第 (n+m )上行子帧内实现 D2D的传输包括:
如果根据所述配置信令确定第 (n+m )上行子帧为 D2D接收子帧, 则根 据所述上行调度信令在第 ( n+m )上行子帧内实现 D2D的接收;
如果根据所述配置信令确定第 (n+m )上行子帧为 D2D发送子帧, 则根 据所述上行调度信令在第 ( n+m )上行子帧内实现 D2D的发送。
4、 根据权利要求 1所述的方法, 其特征在于, 所述根据所述上行调度 信令在第 (n+m )上行子帧内实现 D2D的传输包括:
根据接收到的所述上行调度信令的个数在第( n+m )上行子帧内实现 D2D 的传输; 或者
根据所述上行调度信令中所携带的信息在第( n+m )上行子帧内实现 D2D 的传输。
5、 根据权利要求 4所述的方法, 其特征在于, 根据接收到的所述上行 调度信令的个数在第 (n+m )上行子帧内实现 D2D的传输包括: 根据接收到的第一次数的所述上行调度信令在第 ( n+m )上行子帧内实 现 D2D的发送;
根据接收到的第二次数的所述上行调度信令在第 ( n+m )上行子帧内实 现 D2D的接收。
6、 根据权利要求 4所述的方法, 其特征在于, 根据所述上行调度信令 中所携带的信息在第 (n+m )上行子帧内实现 D2D的传输包括:
如果所述信息指示接收, 在第 (n+m )上行子帧内实现 D2D的接收; 如果所述信息指示发送, 在第 (n+m )上行子帧内实现 D2D的发送。
7、 根据权利要求 4至 6中任一项所述的方法, 其特征在于, 所述信息 包括小区编号域比特信息或者跳频指示比特信息。
8、 根据权利要求 1至 7中任一项所述的方法, 其特征在于, 在第 n下 行子帧内接收基站发送的上行调度信令之前, 所述方法还包括:
向所述基站发送 D2D的请求消息。
9、 一种终端直通 D2D的方法, 其特征在于, 包括:
基站在第 n子帧内向终端发送上行调度信令, 所述上行调度信令调度 所述终端在第 (n+m )上行子帧内实现 D2D的上行传输, 其中 n、 m为正整 数。
10、 根据权利要求 9所述的方法, 其特征在于, 还包括:
所述基站在第 n子帧内向所述终端发送配置信令, 其中所述配置信令 指示配置所述终端的第 (n+m )上行子帧内的 D2D收发状态。
11、 根据权利要求 10所述的方法, 其特征在于, 所述配置信令进一步 指示所述终端的第 (n+m )上行子帧为 D2D接收子帧或 D2D发送子帧, 以便 所述终端在接收到所述上行调度信令后在第 ( n+m )上行子帧内实现 D2D的 上行接收或上行发送。
12、 根据权利要求 9至 11中任一项所述的方法, 其特征在于, 所述基 站在第 n子帧内向终端发送上行调度信令包括所述基站向所述终端发送不 同次数的上行调度信令或者携带不同信息的上行调度信令, 以便所述终端 根据所述上行调度信令的不同发送次数或者所述上行调度信令的携带的不 同信息在第 ( n+m )上行子帧内实现 D2D的上行接收或上行发送。
13、 根据权利要求 9至 12中任一项所述的方法, 其特征在于, 在第 n 子帧内向终端发送上行调度信令之前, 所述方法还包括:
所述基站接收所述终端发送的 D2D的请求消息。
14、 一种终端直通 D2D终端, 其特征在于, 包括:
第一接收单元, 用于在第 n下行子帧内接收基站发送的上行调度信令, 所述上行调度信令用于调度第(n+m )上行子帧内的 D2D的传输, 其中 n、 m 为正整数;
传输单元,用于根据所述上行调度信令在第( n+m )上行子帧内实现 D2D 的传输。
15、 根据权利要求 14所述的 D2D终端, 其特征在于, 还包括: 第二接收单元, 用于在第 n下行子帧内接收基站发送的配置信令, 所 述配置信令用于指示配置第 ( n+m )上行子帧内的 D2D收发状态。
16、 根据权利要求 15所述的 D2D终端, 其特征在于, 所述传输单元进 一步包括:
上行接收模块,用于在根据所述配置信令确定第(n+m )上行子帧为 D2D 接收子帧的情况下,根据所述上行调度信令在第( n+m )上行子帧内实现 D2D 的接收;
上行发送模块,用于在根据所述配置信令确定第(n+m )上行子帧为 D2D 发送子帧的情况下,根据所述上行调度信令在第( n+m )上行子帧内实现 D2D 的发送。
17、 根据权利要求 14所述的 D2D终端, 其特征在于, 所述传输单元进 一步用于:
根据所述第一接收单元接收到的上行调度信令的次数在第 (n+m )上行 子帧内实现 D2D的传输; 或者
根据所述第一接收单元接收到的上行调度信令中所携带的信息在第 ( n+m )上行子帧内实现 D2D的传输。
18、 根据权利要求 17所述的 D2D终端, 其特征在于, 所述传输单元包 括:
上行发送模块, 用于根据所述第一接收单元接收到的第一次数的所述 上行调度信令在第 (n+m )上行子帧内实现 D2D的发送;
上行接收模块, 用于根据所述第一接收单元接收到的第二次数的所述 上行调度信令在第 (n+m )上行子帧内实现 D2D的接收。
19、 根据权利要求 17所述的 D2D终端, 其特征在于, 所述传输单元包 括: 上行接收模块, 如果所述第一接收单元接收到的上行调度信令中所携 带的信息指示接收, 所述上行接收模块在第 (n+m )上行子帧内实现 D2D的 接收;
上行发送模块, 如果所述第一接收单元接收到的上行调度信令中所携 带的信息指示发送, 所述上行发送模块在第 (n+m )上行子帧内实现 D2D的 发送。
20、 根据权利要求 17至 19中任一项所述的 D2D终端, 其特征在于, 所述第一接收单元接收到的上行调度信令中所携带的信息包括小区编号域 比特信息或者跳频指示比特信息。
21、 根据权利要求 14至 20中任一项所述的 D2D终端, 其特征在于, 还包括:
第一发送单元, 用于在所述第一接收单元在第 n 下行子帧内接收基站 发送的上行调度信令之前, 向所述基站发送 D2D的请求消息。
22、 一种基站, 其特征在于, 包括:
生成单元, 用于生成终端直通 D2D的请求消息;
第二发送单元, 根据所述请求消息, 在第 n子帧内向所述终端发送上 行调度信令, 所述上行调度信令调度所述终端在第 (n+m )上行子帧内实现 D2D的上行传输, 其中 n、 m为正整数。
23、 根据权利要求 22所述的基站, 其特征在于, 还包括:
第三发送单元, 在第 n子帧内向所述终端发送配置信令, 其中所述配 置信令指示配置所述终端的第 ( n+m )上行子帧内的 D2D收发状态。
24、 根据权利要求 23所述的基站, 其特征在于, 所述配置信令进一步 指示所述终端的第 (n+m )上行子帧为 D2D子帧为 D2D接收子帧或 D2D发送 子帧, 以便所述终端在接收到所述上行调度信令后在第 (n+m )上行子帧内 实现 D2D的上行接收或上行发送。
25、 根据权利要求 22所述的基站, 其特征在于, 所述第二发送单元进 行调度信令, 以便所述终端根据所述上行调度信令的不同发送次数或者所 述上行调度信令的携带的不同信息在第 (n+m )上行子帧内实现 D2D的上行 接收或上行发送。
26、 根据权利要求 22至 25中任一项所述的基站, 其特征在于, 还包 括:
第三接收单元, 用于在第 n子帧内向终端发送上行调度信令之前, 接 收所述终端发送的 D2D的请求消息。
PCT/CN2012/084047 2011-11-24 2012-11-05 终端直通的方法、终端直通终端和基站 WO2013075581A1 (zh)

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