WO2015127765A1 - 一种移动终端协作传输的方法及装置 - Google Patents

一种移动终端协作传输的方法及装置 Download PDF

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Publication number
WO2015127765A1
WO2015127765A1 PCT/CN2014/084417 CN2014084417W WO2015127765A1 WO 2015127765 A1 WO2015127765 A1 WO 2015127765A1 CN 2014084417 W CN2014084417 W CN 2014084417W WO 2015127765 A1 WO2015127765 A1 WO 2015127765A1
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Prior art keywords
uem
ues
base station
data
cooperation
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PCT/CN2014/084417
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English (en)
French (fr)
Inventor
侯晓辉
卢勤博
张萌
杨锋
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中兴通讯股份有限公司
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Publication of WO2015127765A1 publication Critical patent/WO2015127765A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for cooperative transmission of a mobile terminal.
  • Embodiments of the present invention provide a method and apparatus for cooperative transmission of a mobile terminal, which solves the problem of high mobile penetration loss in the prior art.
  • the primary user equipment (UE, UEm) sends the UEm identifier and the information identified by the user equipment (UE, UEs) to the base station, where the UEs are UEs participating in the UEm data transmission;
  • the UEm sends the UEm data to be sent to the base station to the UEs, so that the UEm sends the UEm data to the base station in cooperation with the UEs.
  • the method further includes the step of the UEm establishing the cooperative terminal group, the step comprising: The UE detects a UE that supports a D2D (Device to Device), and sends a request for establishing a D2D link to the detected UE.
  • D2D Device to Device
  • the UEm will receive the request and confirm that the UE that establishes the D2D link with the UEm joins the coordinated terminal group as the UEs.
  • the UEm sends the UEm data to the base station in cooperation with the UEs, including:
  • the UEm and the UEs respectively send the UEm data to the base station via an uplink channel activated by the base station.
  • the UEm and the UEs respectively send the UEm data to the base station via an uplink channel activated by the base station, including one of the following manners:
  • Antennas of all UEs in the coordinated terminal group transmit the same UEm data
  • the antennas of all UEs in the cooperative terminal group transmit data as virtual antennas of UEm.
  • the UE in the coordinated terminal group obtains a beamforming phase through a downlink control channel, and the beamforming phase is obtained by considering the variable as a fixed parameter according to a maximum received signal to noise ratio criterion.
  • all UEs in the coordinated terminal group transmit multiple input multiple output MIMO multiplexed symbols on the same physical resource, and the modulation coding policy MCS format of the MIMO multiplexed symbol is carried by the D2D frame, or The base station is scheduled through the downlink channel.
  • the UEm detects the D2D-capable UE by using the frame header discovery in the D2D frame, and uses the data data in the D2D frame to transmit the UEm data to be transmitted to the base station and the modulation and coding strategy for transmitting the UEm data to the base station ( Information in the Modulation Coding Scheme, MCS) format is sent to the UEs.
  • MCS Modulation Coding Scheme
  • the UEm and the UEs respectively send the UEm data to the base station on the uplink channel in the same or different MCS format.
  • the UEm sends information including the UEm identifier and the UEs identifier to the base station, where the UEs are a UE participating in UEm data reception;
  • the UEm receives base station data sent by the base station to the UEm in cooperation with the UEs.
  • the receiving, by the UEs, the base station data sent by the base station to the UEm in cooperation with the UEs includes:
  • the UEm in cooperation with the UEs, receives base station data sent by the base station to the UEm via a downlink channel activated by the base station.
  • the sending identifier information module is configured to: send information including the UEm and the UEs identifiers to the base station, where the UEs are UEs participating in UEm data transmission;
  • the UEm sends the UEm data to be sent to the base station to the UEs, so that the UEm sends the UEm data to the base station in cooperation with the UEs.
  • the foregoing apparatus further includes a UEm establishing a cooperative terminal group module, and the method includes: a sending requesting unit, configured to: the UEm detects a D2D-capable UE, and sends a request for establishing a D2D link to the detected UE;
  • the establishing unit is configured to: the UEm will receive the request and confirm that the UE that establishes the D2D link with the UEm joins the coordinated terminal group as the UEs.
  • the above apparatus further includes:
  • the receiving base station data module is configured to receive base station data sent by the base station to the UEm in cooperation with the UEs.
  • the receiving base station data module is configured to: receive, by the base station, the base station data sent by the base station to the UEm via the base station activated downlink channel in cooperation with the UEs.
  • Embodiments of the present invention also provide a computer program, including program instructions, that when the program instructions are executed by a primary device that is transmitted and coordinated, causes the primary user device to perform the above method.
  • Embodiments of the present invention also provide a carrier carrying the computer program. Through distributed cooperation, the embodiments of the present invention can significantly improve the transmission performance of the uplink and the downlink, and improve the transmission rate.
  • FIG. 1 is a flowchart of a method for cooperative transmission of a mobile terminal according to the present invention
  • FIG. 2 is a schematic diagram of an apparatus for cooperative transmission of a mobile terminal according to the present invention
  • FIG. 3 is a schematic diagram of a D2D link provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of cooperation of a cooperative terminal group according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a D2D transmission and an uplink cooperative transmission according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a D2D frame according to an embodiment of the present invention.
  • the embodiment of the present invention achieves the purpose of improving the uplink performance and resisting the penetration loss of the fast moving body by introducing some mechanisms on the UE.
  • the idea is suitable for uplink enhanced reception and enhanced downlink reception for multiple communication scenarios.
  • the transmitting antenna of the UE is added from the perspective of the uplink transmission, and the receiving antenna of the UE is added at the angle of the downlink transmission.
  • FIG. 1 is a flowchart of a method for cooperative transmission of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps:
  • Step S101 The UEm sends the information including the identifiers of the UEm and the UEs to the base station, where the UEs are the UEs participating in the UEm data transmission;
  • Step S102 The UEm sends the UEm data to be sent to the base station to the UEs, so that the UEm sends the UEm data to the base station in cooperation with the UEs.
  • the UEm transmitting the UEm data to the base station in cooperation with the UEs includes: sending, by the UEm and the UEs, the UEm data to the uplink channel activated by the base station, respectively.
  • Base station Specifically, the method includes the following: The antennas of all the UEs including the UEm and the UEs in the coordinated terminal group transmit the same UEm data; the antennas of all the UEs including the UEm and the UEs in the coordinated terminal group are transmitted as the virtual antenna of the UEm. data.
  • the UEm Before the UEm sends the information including the identifiers of the UEm and the UEs to the base station, the UEm further includes the UEm establishing the cooperative terminal group, and the steps include: the UEm detects the UE supporting the D2D, and sends the established D2D to the detected UE. The request of the link; the UEm will receive the request and confirm that the UE that establishes the D2D link with the UEm joins the coordinated terminal group as the UEs.
  • the UEm detects the D2D-capable UE by using the frame header discovery in the D2D frame, and sends the UEm data to be transmitted to the base station and the MCS format information of the UEm data to the base station by using the data data in the D2D frame.
  • the UEs that is, the UEm and the UEs respectively send the UEm data to the base station on the uplink channel in the same MCS format.
  • the UEm and the UEs may also send the UEm data to the base station on the uplink channel in different MCS formats, and the MCS format may be scheduled by the base station through the downlink channel.
  • the schematic diagram of the D2D frame structure provided in FIG. 6 includes frame header discovery and data data.
  • the frame header discovery is used to discover the mobile terminal and is used for synchronization and channel estimation.
  • the data data is the payload of the data transmission, and carries the symbol modulated by the data stream.
  • the UE that needs to communicate with the base station is denoted as UEm, and is responsible for establishing a coordinated UE group (VUEG).
  • the UEm detects other D2D-capable UEs through the discovery of the D2D frame, and supports the D2D UE as the UEs.
  • the D2D-enabled UE replies to confirm the establishment of the D2D link information on the discovery of the D2D frame.
  • the UE supporting D2D determines that the D2D link with the UEm is not established, no processing is performed.
  • the UEm receives the acknowledgment to confirm the establishment of the D2D link, the UEs that support the D2D are added to the VUEG. Among them, there may be multiple UEs, and UEs need to have D2D capability.
  • the base station activates the uplink and downlink channels of the coordinated terminal group for transmitting the uplink data and the downlink data of the UEm and the UEs, and the downlink may only be transmitted on the downlink channel of the UEm.
  • IMSI International Mobile Subscriber Identification Number
  • the data can also be transmitted on the downlink channels of the UEm and the UEs, but the signaling needs to be transmitted on the downlink channels of the UEm and the UEs. If the data is transmitted on the downlink channels of the UEm and the UEs, the UEs need to transmit The received data is forwarded to the UEm through the D2D link. The UEm and the UEs send the data to be sent by the UEm to the base station via the uplink channel, and receive the downlink data that the base station sends to the UEm via the downlink channel.
  • the UEm transmits the UEm data that needs to be transmitted to the base station to the UEs through the D2D link, and the transmission can be completed in a short time by using the D2D frame frame.
  • the D2D communication delay between UEm and UEs must be sufficiently small.
  • the data to be transmitted by UEs on TS5 is received from UEm by D2D frame.
  • the data to be transmitted must be The air interface time TS5 is ready before the arrival of the air interface. Only when this condition is met can the UEm and the UEs cooperate in the same time-frequency resources and transmit data on different physical antennas.
  • the D2D link transmission it can be performed in two modes: no confirmation and acknowledgment.
  • the non-confirmation means that the data packet is always transmitted
  • the acknowledgment means that the sent data packet is sent after the acknowledgment reply.
  • the next packet is transmitted, and the UEm is responsible for notifying the MCS format of the UEs in real time.
  • the method of the embodiment of the present invention further includes: when the UE is received by another UE as the UEs to join the coordinated terminal group, the UE transmits the coordinated terminal group information including the identifiers of the UEm and the UEs to the base station, so that the base station activates the coordinated terminal group.
  • a downlink channel the UEm enables the cooperative terminal group to receive base station data that the base station sends to the UEm via a downlink channel activated by the base station. That is to say, the downlink UEs requiring VUEG need to transmit the baseband data obtained by the intermediate frequency down-conversion to the UEm through the D2D link. This bandwidth requirement is very high compared to the uplink.
  • the embodiment of the present invention further provides another method for cooperative transmission of a mobile terminal, including the following steps: Step 001: UEm sends information including a UEm identifier and a UEs identifier to a base station, where the UEs are UEs participating in UEm data reception;
  • Step 002 The UEm receives, according to cooperation of the UEs, base station data that is sent by the base station to the UEm.
  • the receiving, by the UEs, the base station data sent by the base station to the UEm in the cooperation of the UEs includes: the UEm receiving, by the UEs, the base station data sent by the base station to the UEm via a downlink channel activated by the base station. . That is to say, in the downlink transmission, the UEs in the VUEG need to transmit the baseband data obtained by the intermediate frequency down-conversion to the UE2 through the D2D link, and the bandwidth requirement is very high compared to the uplink.
  • FIG. 2 is a schematic diagram of a device for cooperative transmission of a mobile terminal according to an embodiment of the present invention.
  • the method includes: a sending identifier information module 201, configured to send information including a UEm and a UEs identifier, to the base station, where The UEs are the UEs participating in the UEm data transmission, and the UEm data module 202 is configured to send the UEm data to be sent to the base station to the UEs, so that the UEm sends the UEm data to the UEs in cooperation with the UEs.
  • Base station configured to send the UEm data to be sent to the base station to the UEs, so that the UEm sends the UEm data to the UEs in cooperation with the UEs.
  • the apparatus further includes a UEm establishing cooperative terminal group module, including: a sending request unit, configured to detect a D2D-capable UE, and send a request for establishing a D2D link to the detected UE; and an establishing unit configured to receive the The UE that requests and confirms that the D2D link is established with the UEm is added as a UEs to the coordinated terminal group.
  • a sending request unit configured to detect a D2D-capable UE, and send a request for establishing a D2D link to the detected UE
  • an establishing unit configured to receive the The UE that requests and confirms that the D2D link is established with the UEm is added as a UEs to the coordinated terminal group.
  • the apparatus can also include a receiving base station data module configured to receive base station data transmitted by the base station to the UEm in cooperation with the UEs.
  • the receiving base station data module may be configured to: receive, by the UEs, the base station data sent by the base station to the UEm via a downlink channel activated by the base station.
  • the UEm detects the D2D-capable UE by using the frame header discovery in the D2D frame, and uses the data data in the D2D frame to transmit the UEm data to be transmitted to the base station and the MCS format information of the UEm data to the base station.
  • Sent to the UEs that is, in the embodiment of the present invention, the UEs transmit uplink data on the same physical resource in the same MCS format as the UEm, and the relationship between the UEm and the UEs may be spatial diversity, which may be spatial multiplexing.
  • the consideration of the confidentiality of the UEm data can be solved by the following strategy: the data sent by the UEm to the UEs is encrypted. The key is only known by the UEm and the base station. Therefore, the UEs receive the data that the UEm has encrypted. Under the condition that the encryption key is not known, it is difficult for the UEs to know the information of the UEm.
  • the embodiment of the present invention further provides a computer program, including program instructions, when the program instruction is executed by a primary user equipment that is transmitted and coordinated, so that the primary user equipment can perform any of claims 1-8.
  • a computer program including program instructions, when the program instruction is executed by a primary user equipment that is transmitted and coordinated, so that the primary user equipment can perform any of claims 1-8. The method described in the item.
  • Embodiments of the present invention also provide a carrier carrying the above computer program.
  • MIMO Multiple-Input Multiple-Output
  • Class 1 is for MIMO
  • Class 2 is for MIMO
  • the first category is represented by Global System for Mobile Communication (GSM)
  • GSM Global System for Mobile Communication
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • the main physical layer technology is transmit diversity and receive diversity.
  • the specific steps include:
  • UEm is responsible for establishing VUEG.
  • the UEm informs the base station of the established VUEG relationship, mainly the physical identifier of the UEm and the physical identifier of the UEs, such as IMSI, IMEI, and the like.
  • the base station activates the uplink and downlink channels of the VUEG. To mitigate the processing complexity, it is considered to activate only the downlink channel of the UEm. Of course, the downlink channels of the UEm and the UEs may be activated.
  • the UEm transmits the data to be transmitted to the UEs through the D2D link, and the transmission is performed through the D2D frame. As shown in FIG. 3, the transmission is completed in a short time to ensure that the cooperation does not bring too much delay. At the same time, in order to unify the reference of the system synchronization, it is considered that the transmission of the D2D refers to the clock reference delivered by the base station.
  • the UEs After receiving the data of the UEm, the UEs transmit the uplink data in the same MCS format as the UEm according to the request of the UEm, and the antennas of all the UEs of the VUEG transmit the same data.
  • the coordinated transmission of UEs and UEm is more flexible. It can support 2 antennas, 4 antennas for spatial transmit diversity, or 2 antennas, 4 antennas, or even more.
  • the diversity technology can consider diversity transmission, Space Frequency Block Code (SFBC), and spatial multiplexing technology can support precoding technology and beamforming technology. Only need to be distributed in VUEG
  • the antennas can be processed as virtual antennas of the UEm.
  • Embodiment 1 Embodiment 1
  • UEm is responsible for establishing VUEG.
  • the UEm informs the base station of the established VUEG relationship, mainly the physical identifiers of the cooperative base stations UEs and UEm, such as IMSI, IMEI, and the like.
  • the base station activates the uplink and downlink channels of the VUEG. To mitigate the processing complexity, it is considered to activate only the downlink channel of the UEm. Of course, the downlink channels of the UEm and the UEs may be activated.
  • the UEm transmits the data to be transmitted to the UEs through the D2D link, and the transmission is performed through the D2D frame. As shown in FIG. 3, the transmission is completed in a short time to ensure that the cooperation does not bring too much delay. At the same time, in order to unify the reference of the system synchronization, it is considered that the transmission of the D2D refers to the clock reference delivered by the base station.
  • each UE has one transmit antenna and the base station has N receive antennas. There are m in VUEG
  • the UE participates in uplink cooperation. All UE uplinks transmit the same symbol on the same physical resource, and the MCS of its transmission is the same.
  • h k ⁇ h kl , h k2 , - , h kN f .
  • the line receive signal can be modeled as:
  • the transmit power, ⁇ ⁇ 2 is the noise variance.
  • this phase can be considered when the baseband is implemented, or the phase of the RF carrier can be adjusted.
  • UEm is responsible for establishing VUEG
  • the UEm informs the base station of the established VUEG relationship, mainly the physical standard i of the cooperative base station UEs UEm, the ratio is 3 ⁇ 4. IMSI, IMEI (International Mobile Equipment Identity), etc.
  • the base station activates the uplink and downlink channels of the VUEG. To mitigate the processing complexity, it is considered to activate only the downlink channel of the UEm. Of course, if the complexity is not a problem, the downlink channels of the UEm UEs may also be activated.
  • the UEm transmits the data to be transmitted to the UEs through the D2D link, and the transmission is performed through the D2D frame. As shown in FIG. 3, the transmission is completed in a short time to ensure that the cooperation does not bring too much delay. At the same time, in order to unify the reference of the system synchronization, it is considered that the transmission of the D2D refers to the clock reference delivered by the base station.
  • each UE has two transmit antennas and the base station has a root receive antenna.
  • the uplink received signal of the base station can be modeled as:
  • reception symbol of the A-th antenna of the base station the channel response of the mod( ⁇ ) antenna of the first UE to the 7th antenna of the base station; 3 ⁇ 4cho for the mth UE at the “th antenna” Launch symbol; For noise and interference.
  • SVD Single Value Decomposition
  • the base station calculates V and then informs the responding UE through the downlink control channel of each UE.
  • the corresponding UE performs precoding calculation
  • the UE may improve the uplink transmission and downlink transmission performance of the UE by using the D2D link to increase the uplink and downlink transmission performance of the UE, and improve the transmission rate.
  • the components of the apparatus and/or system provided by the embodiments of the present invention described above, as well as the steps of the method, can be implemented by a general computing device, which can be concentrated in a single calculation. On the device, or distributed over a network of computing devices, optionally, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or They are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the distributed embodiments of the present invention can significantly improve the transmission performance of the uplink and downlink and improve the transmission rate.

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Abstract

一种移动终端协作传输的方法和装置,主用户设备UEm将包含UEm标识和从用户设备UEs标识的信息发送给基站,其中所述UEs是参与UEm数据传输的用户设备UE;所述UEm把将要向所述基站发送的UEm数据发送给所述UEs,以便使所述UEm在所述UEs的协作下将所述UEm数据发送给基站。

Description

一种移动终端协作传输的方法及装置 技术领域
本发明涉及无线通信技术领域, 特别涉及一种移动终端协作传输的方法 及装置。
背景技术
当前, 随着无线通信的发展, 越来越多的通信需求出现在汽车、 火车等 移动速度较高的移动体内部, 这些移动体有这比较高的移动穿透损耗, 这损 耗可以高达几十分贝, 这对于发射功率本身就相对较低的用户设备(User Equipment, UE )来说, 无疑会对基站的上行接收造成比较大的影响。 为提高 此情况下的上行接收能力, 业界提出了移动小区的概念, 即通过在移动体上 加装 2组天线, 其中 1组为移动体外的外部天线, 另 1组为移动体内部的内 部天线, 通过外部天线接收信号转换成内部信号通过内部天线发射出去, 来 实现对信号的增强转发, 此解决方案对移动体本身提出了比较高的要求, 成 本也相对较高。
发明内容
本发明实施例提供一种移动终端协作传输的方法及装置, 解决现有技术 中移动穿透损耗较高的问题。
本发明实施例的一种移动终端协作传输的方法, 包括:
主用户设备 (UE master, UEm)将包含 UEm标识和从用户设备 ( UE slave , UEs )标识的信息发送给基站, 其中所述 UEs是参与 UEm数据传输的 UE;
所述 UEm把将要向基站发送的 UEm数据发送给所述 UEs, 以便使所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站。
较佳地, 在所述 UEm发送包含 UEm和 UEs标识的信息给基站之前, 还 包括 UEm建立协作终端群的步骤, 该步骤包括: 所述 UEm探测支持 D2D ( Device to Device, 设备到设备) 的 UE, 并向 探测到的 UE发送建立 D2D链路的请求;
所述 UEm将接收到所述请求并确认与 UEm建立 D2D链路的 UE作为 UEs加入到协作终端群中。
较佳地, 所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站包 括:
所述 UEm和所述 UEs经由基站激活的上行信道将所述 UEm数据分别发 送给基站。
较佳地, 所述 UEm和所述 UEs经由基站激活的上行信道将所述 UEm数 据分别发送给基站包括以下方式之一:
协作终端群中所有 UE的天线传输相同的 UEm数据;
协作终端群中所有 UE的天线作为 UEm的虚拟天线传输数据。
较佳地, 协作终端群中的 UE通过下行控制信道获得波束赋形相位, 所 述波束赋形相位是根据最大化接收信噪比准则, 通过将变量视为固定参量的 方式得到的。
较佳地, 协作终端群中所有 UE上行在相同的物理资源上发射多输入多 输出 MIMO复用的符号, 并且发射所述 MIMO复用的符号的调制编码策略 MCS格式由 D2D帧携带, 或者由基站通过下行信道调度。
较佳地 ,所述 UEm利用 D2D帧中的帧头 discovery探测支持 D2D的 UE , 以及利用 D2D帧中的数据 data把将要向基站发送的 UEm数据以及向基站传 输所述 UEm数据的调制编码策略 (Modulation Coding Scheme, MCS)格式的信 息发送给所述 UEs。
较佳地, 所述 UEm和所述 UEs以相同或者不同的 MCS格式在上行信道 上将所述 UEm数据分别发送给基站。
本发明实施例的另一种移动终端协作传输的方法, 包括:
UEm将包含 UEm标识和 UEs标识的信息发送给基站, 其中所述 UEs是 参与 UEm数据接收的 UE;
所述 UEm在所述 UEs的协作下接收基站发送给所述 UEm的基站数据。 较佳地, 所述 UEm在所述 UEs的协作下接收基站发送给所述 UEm的基 站数据包括:
所述 UEm在所述 UEs的协作下经由基站激活的下行信道接收基站发送 给所述 UEm的基站数据。
本发明实施例提供的一种移动终端协作传输的装置, 包括:
发送标识信息模块, 设置为: 将包含 UEm和 UEs标识的信息发送给基 站, 其中所述 UEs是参与 UEm数据传输的 UE;
发送 UEm数据模块,设置为: 所述 UEm把将要向基站发送的 UEm数据 发送给所述 UEs, 以便使所述 UEm在所述 UEs的协作下将所述 UEm数据发 送给基站。
较佳地, 上述装置还包括 UEm建立协作终端群模块, 其包括: 发送请求单元, 设置为: 所述 UEm探测支持 D2D的 UE,并向探测到的 UE发送建立 D2D链路的请求;
建立单元,设置为:所述 UEm将接收到所述请求并确认与 UEm建立 D2D 链路的 UE作为 UEs加入到协作终端群中。
较佳地, 上述装置还包括:
接收基站数据模块, 设置为在所述 UEs 的协作下接收基站发送给所述 UEm的基站数据。
较佳地, 所述接收基站数据模块是设置为: 在所述 UEs的协作下经由基 站激活的下行信道接收基站发送给所述 UEm的基站数据。
本发明实施例还提供一种计算机程序, 包括程序指令, 当该程序指令被 传输协作的主用户设备执行时, 使得该主用户设备可执行上述方法。
本发明实施例还提供一种载有所述计算机程序的载体。 本发明实施例通过分布式协作, 能够显著改善上行链路和下行链路的传 输性能, 提高传输的速率。
附图概述
图 1是本发明提供的一种移动终端协作传输的方法流程图;
图 2是本发明提供的一种移动终端协作传输的装置示意图;
图 3是本发明实施例提供的 D2D链路示意图;
图 4是本发明实施例提供的协作终端群协作示意图;
图 5是本发明实施例提供的 D2D传输和上行协作传输配合的示意图; 图 6是本发明实施例提供的 D2D帧结构示意图。
本发明的较佳实施方式
下面结合附图对本发明具体实施方式作详细描述。 需要说明的是, 在不 冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
本发明实施例通过在 UE上引入一些机制, 来达到改善上行链路性能, 抵抗快速移动体的穿透损耗的目的。 同时该思路适合于对多种通信场景进行 上行的增强接收, 下行的增强接收。 本发明实施例站在上行传输的角度, 增 加了 UE的发射天线, 站在下行传输的角度, 增加了 UE的接收天线。
图 1显示了本发明实施例提供的一种移动终端协作传输的方法流程图, 如图 2所示, 包括以下步骤:
步骤 S 101: UEm将包含 UEm和 UEs标识的信息发送给基站, 其中所述 UEs是参与 UEm数据传输的 UE;
步骤 S102: 所述 UEm把将要向基站发送的 UEm数据发送给所述 UEs, 以便使所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站。
其中,所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站包括: 所述 UEm和所述 UEs经由基站激活的上行信道将所述 UEm数据分别发送给 基站。 具体地说, 包括以下方式之一: 协作终端群中的包含 UEm和 UEs的 所有 UE的天线传输相同的 UEm数据; 协作终端群中的包含 UEm和 UEs的 所有 UE的天线作为 UEm的虚拟天线传输数据。
本发明实施例在所述 UEm发送包含 UEm和 UEs标识的信息给基站之前, 还包括 UEm建立协作终端群, 其步骤包括: 所述 UEm探测支持 D2D的 UE, 并向探测到的 UE发送建立 D2D链路的请求; 所述 UEm将接收到所述请求 并确认与 UEm建立 D2D链路的 UE作为 UEs加入到协作终端群中。 其中, 所述 UEm利用 D2D帧中的帧头 discovery探测支持 D2D的 UE, 以及利用 D2D 帧中的数据 data把将要向基站发送的 UEm数据以及向基站传输所述 UEm数据的 MCS格式的信息发送给所述 UEs。 也就是说, 所述 UEm和所述 UEs以相同的 MCS格式在上行信道上将所述 UEm数据分别发送给基站。 所 述 UEm和所述 UEs也可以以不同的 MCS格式在上行信道上将所述 UEm数 据分别发送给基站, MCS格式可以由基站通过下行信道调度。
如图 6所示提供的 D2D帧结构示意图, 包括帧头 discovery和数据 data。 帧头 discovery用于发现移动终端并用作同步和信道估计, 数据 data是数据 传输的有效载荷, 承载的是数据流调制后的 symbol。
本发明实施例中将需要和基站通信的 UE, 记为 UEm, 负责建立协作终 端群(Vehicular UE Group, VUEG),UEm通过 D2D帧的 discovery探测周围其 他支持 D2D的 UE, 支持 D2D的 UE作为 UEs接收到探测请求时, 确定是否 建立与 UEm的 D2D链路 ,若支持 D2D的 UE确定建立与 UEm的 D2D链路 , 则支持 D2D的 UE在 D2D帧的 discovery上回复确认建立 D2D链路的信息 , 若支持 D2D的 UE确定不建立与 UEm的 D2D链路, 则不做处理。 当 UEm 接收到回复确认建立 D2D链路的信息时, 将支持 D2D的 UEs加入到 VUEG 中。 其中, UEs可以有多个, 并且 UEs需具备 D2D能力。
如图 4所示 , 当 UEm将支持 D2D的 UEs加入到 VUEG中时 , 通过链路 将所有的协作关系告知基站, 主要是 UEm和 UEs的物理标识, 比如国际移 动用户识另 ll码 ( International Mobile Subscriber Identification Number, IMSI ) , 或者其他移动设备识别号, 以便基站激活用于传输所述 UEm和 UEs的上行 数据和下行数据的协作终端群上下行信道,下行可以仅在 UEm的下行信道传 输数据, 也可以在 UEm和 UEs上的下行信道上都传, 但是信令需要在 UEm 和 UEs的下行信道上都传输, 如果是数据在 UEm和 UEs上的下行信道上都 传, 则 UEs需要通过 D2D链路将收到的数据转发给 UEm。 所述 UEm和 UEs 经由上行信道发送所述 UEm待发送给基站的数据 ,并经由下行信道接收基站 发送给 UEm的下行数据。
如图 3所示, UEm将需要传输给基站的 UEm数据通过 D2D链路传给 UEs, 并且这个传输可以通过 D2D 帧 frame在很短的时间内完成, 如图 5所 示,假设 UEm和 UEs要在 TS5上传输信息,则要求 UEm和 UEs之间的 D2D 通信延迟必须足够小, 简单来说, UEs要在 TS5 上发射的数据是依靠 D2D frame从 UEm接收得到的, 这个要发射的数据必须在空口时间 TS5到来之前 准备好, 只有满足此条件, 才能保证 UEm和 UEs在同样的时频资源, 以及 在不同的物理天线上发射数据才能进行协作。 此外, 在 D2D链路传输中, 可 以以无确认和有确认 2种模式进行, 所述无确认是指一直发送数据包, 所述 有确认是指所发送的数据包在有确认回复后再发送下一包数据包, 并且传输 中 UEm负责实时告知 UEs的 MCS格式。
此外, 本发明实施例的方法还包括: 所述 UEm接收到其他 UE作为 UEs 加入所述协作终端群时, 将包含 UEm和 UEs标识的协作终端群信息通知给 基站, 以便基站激活协作终端群的下行信道; 所述 UEm使所述协作终端群经 由基站激活的下行信道接收所述基站向所述 UEm发送的基站数据。 也就是 说,下行要求 VUEG的 UEs需要将中频下变频得到的基带釆样数据通过 D2D 链路传输给 UEm, 这个带宽要求相比上行是非常高的。
本发明实施例还提供了另一种移动终端协作传输的方法,包括以下步骤: 步骤 001 : UEm将包含 UEm标识和 UEs标识的信息发送给基站, 其中 所述 UEs是参与 UEm数据接收的 UE;
步骤 002: 所述 UEm在所述 UEs的协作下接收基站发送给所述 UEm的 基站数据。
其中, 所述 UEm在所述 UEs的协作下接收基站发送给所述 UEm的基站 数据包括: 所述 UEm在所述 UEs的协作下经由基站激活的下行信道接收基 站发送给所述 UEm的基站数据。 也就是说, 在下行传输中, VUEG中的 UEs需要将中频下变频得到的基 带釆样数据通过 D2D链路传输给 UEm, 这个带宽要求相比上行是非常高的。
图 2显示了本发明实施例提供的一种移动终端协作传输的装置示意图, 如图 2所示, 包括: 发送标识信息模块 201 , 设置为包含 UEm和 UEs标识的 信息发送给基站, 其中所述 UEs是参与 UEm数据传输的 UE; 发送 UEm数 据模块 202, 设置为把将要向基站发送的 UEm数据发送给所述 UEs, 以便使 所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站。
该装置还包括 UEm建立协作终端群模块, 其包括: 发送请求单元, 设置 为探测支持 D2D的 UE,并向探测到的 UE发送建立 D2D链路的请求;建立单 元, 设置为将接收到所述请求并确认与 UEm建立 D2D链路的 UE作为 UEs 加入到协作终端群中。
该装置还可以包括接收基站数据模块, 设置为在所述 UEs的协作下接收 基站发送给所述 UEm的基站数据。
所述接收基站数据模块可以设置为: 在所述 UEs的协作下经由基站激活 的下行信道接收基站发送给所述 UEm的基站数据。
具体地说, 所述 UEm利用 D2D帧中的帧头 discovery探测支持 D2D的 UE,以及利用 D2D帧中的数据 data把将要向基站发送的 UEm数据以及向基 站传输所述 UEm数据的 MCS格式的信息发送给所述 UEs。 也就是说, 本发 明实施例中 UEs以与 UEm相同的 MCS格式在相同的物理资源上传输上行数 据, UEm与 UEs之间的关系可以是空间分集, 可以是空间复用。 其中, 对于 UEm数据私密性的考虑, 可以通过如下策略来解决, UEm发给 UEs的数据 是经过加密的, 这个密钥只有 UEm和基站知道, 因此, UEs接收的是 UEm 已经加密的数据, 在未获知加密密钥的条件下, UEs是很难获知 UEm的信息 的。
本发明实施例还提供一种计算机程序, 包括程序指令, 当该程序指令被 传输协作的主用户设备执行时, 使得该主用户设备可执行权利要求 1-8任一 项所述的方法。
本发明实施例还提供一种载有上述计算机程序的载体。
为了便于详细的说明所有的解决方案, 根据目前上行对多输入所输出 ( Multiple-Input Multiple-Output, MIMO )的支持情况分成 2个大类。 第 1类 为不支持 MIMO的,第 2类为支持 MIMO的。其中第 1类以全球移动通信系 统( Global System for Mobile Communication, GSM )为代表, 第 2类以通用 移动通信系统 ( Universal Mobile Telecommunications System, UMTS ) , 长期 演进(Long Term Evolution, LTE ) 系统及其后续演进系统为代表。 下面以具 体的实施例来说明不支持 MIMO和支持 MIMO的。
对于不支持 MIMO模式的典型系统以 GSM系统为代表, 主要物理层技 术是发射分集和接收分集, 具体步骤包括:
UEm负责建立 VUEG。
UEm将已经建立的 VUEG关系告知基站,主要是 UEm的物理标识和 UEs 的物理标识, 比如 IMSI, IMEI等等。
基站激活 VUEG的上下行信道,为减轻处理复杂度可以考虑只激活 UEm 的下行信道, 当然也可以将 UEm、 UEs的下行信道都激活。
UEm将需要传输的数据通过 D2D链路传输给 UEs, 该传输通过 D2D frame进行, 如图 3所示, 该传输会在很短的时间内完成, 以保证协作不会带 来太大的延迟。 同时为了系统同步的基准的统一, 可以考虑, 令 D2D的传输 参考基站下发的时钟基准。
UEs接收到 UEm的数据后, 根据 UEm的要求以与 UEm相同的 MCS格 式传送上行数据, VUEG的所有 UE的天线传输相同的数据。
对于支持 MIMO的 3G系统以及 LTE系统及其后续演进, UEs和 UEm 的协作传输要更加灵活一些, 可以支持 2根天线, 4根天线的空间发射分集, 或者 2根天线, 4根天线, 甚至更多根天线的上行分布式 MIMO。 分集技术 可以考虑分集发射、 空频块码(Space Frequency Block Code, SFBC ) , 空间 复用技术可以支持预编码技术, 波束赋形技术。 只需要将分布在 VUEG的多 个天线作为 UEm的虚拟天线来处理即可。
下面以两个实施例来具体说明: 具体实施例 1
UEm负责建立 VUEG。
UEm将已经建立的 VUEG关系告知基站, 主要是协作基站 UEs、 UEm 的物理标识, 比如 IMSI, IMEI等等。 基站激活 VUEG的上下行信道,为减轻处理复杂度可以考虑只激活 UEm 的下行信道, 当然也可以将 UEm、 UEs的下行信道都激活。
UEm将需要传输的数据通过 D2D链路传输给 UEs, 该传输通过 D2D frame进行, 如图 3所示, 该传输会在很短的时间内完成, 以保证协作不会带 来太大的延迟。 同时为了系统同步的基准的统一, 可以考虑, 令 D2D的传输 参考基站下发的时钟基准。
对于支持 MIMO的 3G系统,以及支持 MIMO的 LTE系统及其后续演进, 考虑波束赋形技术。 分布在 VUEG的多个天线作为 UEm的虚拟天线来处理。
假设每个 UE有 1根发射天线,基站有 N根接收天线。 VUEG内共有 m
UE参与上行协作。 所有的 UE上行在相同的物理资源上发射相同的符号, 并 且其传输的 MCS—致。
其中 为第 个 UE到基站的信道, hk = {hkl, hk2,- , hkN f 。 行接收信号可以建模为:
Figure imgf000011_0001
其中, 为第 A个 UE 的上行波束赋形调整角度, "为发射的基带符号 symbol, z为噪声 y为基站 N根天线的接收 symbol。 令等效信道 = + ζ
Figure imgf000011_0002
假设基站的上行信道估计是理想的, 则最大比合并 (Maximal Ratio
Combining, MRC )接收机的信噪比为 ^= (|/?』2 Ρ„)/(σζ 2) , 其中, Ρ„为每根天线 的发射功率, σζ 2为噪声方差。
因此, 最大化 等价于最大化 | |2。 ι^=έ 1ι +2έ 1 έ 4— }
其中 R为对一个复数求实部。 最大化 ι ιι2, 等价于最大化 ^ , ,···,^), g( ,e2, ...A ) = 2¾ R{f( - 为了使问题简单化,把 视为变量, 其他视为参量, 当满足 =
Figure imgf000012_0001
l=\,l≠k
6k = arg
从这个角度出发, 类似的
Figure imgf000012_0002
可以先假设 ^初始相位相等, 然后利用公式 (2)进行多次迭代实现 最优值的求解。得到 ^后, 可以将这个相位在基带实现时考 虑, 或者调节射频载波的相位实现。
具体实施例 2
UEm负责建立 VUEG
UEm将已经建立的 VUEG关系告知基站, 主要是协作基站 UEs UEm 的物理标 i只, 比 ¾。IMSI, IMEI ( International Mobile Equipment Identity, 国际 移动设备身份码)等等。
基站激活 VUEG的上下行信道,为减轻处理复杂度可以考虑只激活 UEm 的下行信道, 当然如果复杂度不是问题的话, 也可以将 UEm UEs的下行信 道都激活。
UEm将需要传输的数据通过 D2D链路传输给 UEs, 该传输通过 D2D frame进行, 如图 3所示, 该传输会在很短的时间内完成, 以保证协作不会带 来太大的延迟。 同时为了系统同步的基准的统一, 可以考虑, 令 D2D的传输 参考基站下发的时钟基准。
5)考虑空间复用技术,分布在 VUEG的多个天线作为 UEm的虚拟天线来 处理 t
假设每个 UE有 2根发射天线,基站有 ^根接收天线。 VUEG内共有 M个 UE参与上行协作。 所有的 UE上行在相同的物理资源上发射 MIMO复用的 符号, 并且其 MCS方案按照 D2D帧携带的格式, 或者由基站通过下行信道 调度。
因此, 基站的上行接收信号可以建模为:
Figure imgf000013_0001
Figure imgf000013_0002
其中 为基站的第 A根天线的接收 symbol; .为第 个 UE 的第 mod(^ )根天线到基站的第 7'根天线的信道响应; ¾ „为第 m个 UE在第"根 天线的发射 symbol; 。为噪声和干扰。
K
2
H = K 〃 h2
h
记 N2 h N,2M J ,根据基于 SVD( Singular Value Decomposition, 奇异值分解)的预编码理论, 得到, H = U VH , 其中 的维度为 NxN; V的 维度为 2MX2M; 即为线性预编码矩阵。
基站计算得到 V , 然后通过每个 UE的下行控制信道告知响应的 UE。 相应的 UE执行预编码计算,
x = 其中
Figure imgf000013_0003
需要注意的是, 对于 UEi只需传输第 1, 2层的数据 xu,xi2, 其中 1≤ ≤M。 本发明实施例在 UE的通信中, 可以通过 D2D链路增加 UE的发射天线 和接收天线来改善 UE的上行传输和下行传输性能, 提高传输的速率。 尽管上文对本发明进行了详细说明, 但是本发明不限于此, 本技术领域 技术人员可以根据本发明的原理进行各种修改。 因此, 凡按照本发明原理所 作的修改, 都应当理解为落入本发明的保护范围。
本领域的技术人员应该明白, 上述的本发明实施例所提供的装置和 /或系 统的各组成部分, 以及方法中的各步骤, 可以用通用的计算装置来实现, 它 们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以将它们 存储在存储装置中由计算装置来执行, 或者将它们分别制作成各个集成电路 模块, 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这 样, 本发明不限制于任何特定的硬件和软件结合。
工业实用性
本发明实施例通过分布式协作, 能够显著改善上行链路和下行链路的传 输性能, 提高传输的速率。

Claims

权 利 要 求 书
1、 一种移动终端协作传输的方法, 包括:
主用户设备 UEm将包含 UEm标识和从用户设备 UEs标识的信息发送给 基站, 其中所述 UEs是参与 UEm数据传输的用户设备 UE;
所述 UEm把将要向所述基站发送的 UEm数据发送给所述 UEs, 以便使 所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站。
2、根据权利要求 1所述的方法, 其中, 在所述 UEm发送包含 UEm标识 和 UEs标识的信息给基站之前, 还包括 UEm建立协作终端群的步骤, 该步 骤包括:
所述 UEm探测支持 D2D的 UE,并向探测到的 UE发送建立 D2D链路的 请求;
所述 UEm将接收到所述请求并确认与 UEm建立 D2D链路的 UE作为 UEs加入到所述协作终端群中。
3、 根据权利要求 1所述的方法, 其中, 所述 UEm在所述 UEs的协作下 将所述 UEm数据发送给基站包括:
所述 UEm和所述 UEs经由所述基站激活的上行信道将所述 UEm数据分 别发送给基站。
4、 根据权利要求 3所述的方法, 其中, 所述 UEm和所述 UEs经由所述 基站激活的上行信道将所述 UEm数据分别发送给所述基站包括:
协作终端群中所有 UE的天线传输相同的 UEm数据; 或者
协作终端群中所有 UE的天线作为 UEm的虚拟天线传输数据。
5、 根据权利要求 2所述的方法, 其中, 协作终端群中的 UE通过下行控 制信道获得波束赋形相位,所述波束赋形相位是根据最大化接收信噪比准则, 通过将变量视为固定参量的方式得到的。
6、 根据权利要求 2所述的方法, 其中, 协作终端群中所有 UE上行在相 同的物理资源上发射多输入多输出 MIMO复用的符号,并且发射所述 MIMO 复用的符号的调制编码策略 MCS格式由 D2D帧携带, 或者由基站通过下行 信道调度。
7、 根据权利要求 2所述的方法, 其中, 所述 UEm利用 D2D帧中的帧头 探测支持 D2D的 UE, 以及利用 D2D帧中的数据把将要向基站发送的 UEm 数据以及向基站传输所述 UEm数据的调制编码策略 MCS格式的信息发送给 所述 UEs。
8、根据权利要求 1至 7任一项所述的方法,其中,所述 UEm和所述 UEs 以相同的或不同的 MCS格式将所述 UEm数据分别发送给基站。
9、 一种移动终端协作传输的方法, 包括:
主用户设备 UEm将包含 UEm标识和从用户设备 UEs标识的信息发送给 基站, 其中所述 UEs是参与 UEm数据接收的 UE;
所述 UEm在所述 UEs的协作下接收基站发送给所述 UEm的基站数据。
10、 根据权利要求 9所述的方法, 其中, 所述 UEm在所述 UEs的协作 下接收基站发送给所述 UEm的基站数据包括:
所述 UEm在所述 UEs的协作下经由基站激活的下行信道接收基站发送 给所述 UEm的基站数据。
11、 一种移动终端协作传输的装置, 包括:
发送标识信息模块, 设置为: 将包含 UEm标识和从用户设备 UEs标识 的信息发送给基站, 其中所述 UEs是参与 UEm数据传输的 UE;
发送 UEm数据模块, 设置为: 把将要向基站发送的 UEm数据发送给所 述 UEs,以便使所述 UEm在所述 UEs的协作下将所述 UEm数据发送给基站。
12、 根据权利要求 11所述的装置, 还包括 UEm建立协作终端群模块, 其包括:
发送请求单元, 其设置为: 探测支持 D2D的 UE,并向探测到的 UE发送 建立 D2D链路的请求;
建立单元, 其设置为: 将接收到所述请求并确认与 UEm建立 D2D链路 的 UE作为 UEs加入到协作终端群中。
13、 根据权利要求 11所述的装置, 还包括: 接收基站数据模块, 设置为在所述 UEs 的协作下接收基站发送给所述 UEm的基站数据。
14、 根据权利要求 13所述的装置, 其中,
所述接收基站数据模块是设置为: 在所述 UEs的协作下经由基站激活的 下行信道接收基站发送给所述 UEm的基站数据。
15、 一种计算机程序, 包括程序指令, 当该程序指令被传输协作的主用 户设备执行时, 使得该主用户设备可执行权利要求 1-10任一项所述的方法。
16、 一种载有权利要求 15所述计算机程序的载体。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012108621A1 (ko) * 2011-02-11 2012-08-16 엘지전자 주식회사 무선 접속 시스템에서 단말 간 협력적 통신을 수행하기 위한 방법 및 장치
CN102932044A (zh) * 2011-08-11 2013-02-13 上海交通大学 多用户协作传输方法、用户设备和基站
CN103095423A (zh) * 2013-01-31 2013-05-08 西安电子科技大学 基于d2d组间通信的多用户协同传输方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012108621A1 (ko) * 2011-02-11 2012-08-16 엘지전자 주식회사 무선 접속 시스템에서 단말 간 협력적 통신을 수행하기 위한 방법 및 장치
CN102932044A (zh) * 2011-08-11 2013-02-13 上海交通大学 多用户协作传输方法、用户设备和基站
CN103095423A (zh) * 2013-01-31 2013-05-08 西安电子科技大学 基于d2d组间通信的多用户协同传输方法

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