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    • 1. 发明申请
    • METHOD OF SCRAMBLING SIGNALS, TRANSMISSION POINT DEVICE AND USER EQUIPMENT USING THE METHOD
    • 使用该方法来消除信号的方法,传输点设备和用户设备
    • WO2013010305A1
    • 2013-01-24
    • PCT/CN2011/077203
    • 2011-07-15
    • PANASONIC CORPORATIONZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, DaichiNISHIO, Akihiko
    • ZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, DaichiNISHIO, Akihiko
    • H04W72/04
    • H04W72/044H04L5/0016H04L5/0051H04L25/0226H04L27/2613H04W72/121
    • A method of scrambling signals, transmission point device and user equipment using the method are provided. The method of scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources comprises the steps of: generating a random seed based on a user equipment specific ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. With the present disclosure, identical DMRS from multiple transmission points are guaranteed for the joint transmission scenarios while different DMRSs from adjacent transmission points are guaranteed for the non-CoMP scenarios. Further, by switching between a transmission point specific random seed and a user equipment specific random seed or a random seed generated based on a common ID assigned by a transmission point, the blind detection is enabled and the orthogonality between user equipments can be kept in multiple user operation, while the conflict requirements for both joint transmission and non-CoMP operations are solved in non-MU operation.
    • 提供了使用该方法对信号,传输点设备和用户设备进行加扰的方法。 在具有相同时间和频率资源的至少一层资源块的预定无线电资源上分配信号的方法包括以下步骤:基于用户设备特定ID生成随机种子; 通过随机种子初始化加扰序列; 并用初始化的加扰序列对信号进行加扰。 通过本公开,对于联合传输场景,来自多个传输点的相同DMRS被保证,而来自相邻传输点的不同DMRS被保证用于非CoMP场景。 此外,通过在传输点特定随机种子和用户设备特定随机种子或基于由传输点分配的公共ID生成的随机种子之间进行切换,能够进行盲检测,并且可以将用户设备之间的正交性保持多 用户操作,而在非MU操作中解决了联合传输和非CoMP操作的冲突要求。
    • 2. 发明申请
    • METHOD OF SCRAMBLING SIGNALS, TRANSMISSION POINT DEVICE AND USER EQUIPMENT USING THE METHOD
    • 使用该方法来消除信号的方法,传输点设备和用户设备
    • WO2013010349A1
    • 2013-01-24
    • PCT/CN2011/080372
    • 2011-09-29
    • PANASONIC CORPORATIONZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, DaichiNISHIO, Akihiko
    • ZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, DaichiNISHIO, Akihiko
    • H04L27/26
    • H04W72/044H04L5/0016H04L5/0051H04L25/0226H04L27/2613H04W72/121
    • Method of scrambling signals, transmission point device and user equipment using the method are provided. The method is for scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources, and comprises the steps of: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, the blind detection for the UE is enabled and the signaling overhead is reduced.
    • 提供了使用该方法加扰信号,传输点设备和用户设备的方法。 该方法用于对具有相同时间和频率资源的至少一层资源块的预定无线电资源分配的信号进行加扰,包括以下步骤:通过较高层信令向用户设备发送ID表,ID表为 整个ID空间的子集,并包含用户设备的可用ID; 通过物理层信令或UE特定的较高层信令通知用户设备将要使用的ID表中的ID; 基于通知的ID生成随机种子; 通过随机种子初始化加扰序列; 并利用初始化的加扰序列对信号进行加扰。 本发明的方法通过组合物理层信令和较高层信令,可以将所使用的组ID和盲检测空间通知给UE,使得UE能够进行盲检,信令开销降低。
    • 5. 发明申请
    • METHOD OF TRANSMITTING REFERENCE SIGNAL, TRANSMISSION POINT DEVICE AND USER EQUIPMENT
    • 传输参考信号的方法,传输点设备和用户设备
    • WO2012135995A1
    • 2012-10-11
    • PCT/CN2011/072427
    • 2011-04-02
    • PANASONIC CORPORATIONZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, Daichi
    • ZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, Daichi
    • H04L27/26
    • H04L5/0026H04L5/0048H04L5/006H04L25/03866H04L27/2613
    • A wireless communication method, transmission point device, user equipment, signal multiplexing method and device are provided. The wireless communication method of transmitting to user equipment a plurality of layers of signals assigned on predetermined radio resource of a plurality of layers of resource blocks with the same time and frequency resources, the method comprising: a multiplexing step of multiplying the plurality of layers of signals selectively by one of a first and a second orthogonal cover codes (OCCs) each of which contains two parts; an orthogonalizing step of multiplying a first part and a second part of one of the first and the second OCCs respectively by two sequence values, and multiplying a first part and a second part of the other OCC respectively by mappings of the two sequence values; and a transmitting step of transmitting the plurality of layers of resource blocks obtained from the orthogonalizing step to the user equipment. With the present disclosure, peak power and zero power on Rx side can be randomized thus reducing power fluctuation, meanwhile the orthogonality between the multiplexed RS signals can be preserved.
    • 提供无线通信方法,传输点设备,用户设备,信号复用方法和设备。 一种无线通信方法,用于以相同的时间和频率资源向用户设备发送分配在多层资源块的预定无线电资源上的多层信号,所述方法包括:多路复用步骤,将多个层 通过第一和第二正交覆盖码(OCC)中的一个选择性地选择信号,每个包含两部分; 正交化步骤,将第一和第二OCC中的一个的第一部分和第二部分分别乘以两个序列值,并且通过两个序列值的映射分别乘以另一个OCC的第一部分和第二部分; 以及发送步骤,将从正交化步骤获得的多个资源块层发送给用户设备。 根据本公开,Rx侧的峰值功率和零功率可以随机化,从而降低功率波动,同时可以保持多路复用的RS信号之间的正交性。
    • 6. 发明申请
    • METHOD FOR TRANSMITTING REFERENCE SIGNALS, BASE STATION AND MOBILE TERMINAL
    • 发送参考信号,基站和移动终端的方法
    • WO2012071721A1
    • 2012-06-07
    • PCT/CN2010/079334
    • 2010-12-01
    • PANASONIC CORPORATIONZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, Daichi
    • ZHANG, ZhiXU, MingHOSHINO, MasayukiIMAMURA, Daichi
    • H04B7/26
    • H04L5/0048H04J13/0003H04J13/0048H04L5/0053H04L27/2613H04L27/2634H04W48/12H04W72/12
    • The present disclosure provides a wireless communication method for transmitting to mobile terminals a plurality of layers of demodulation reference signals (DMRS) assigned on first slot and second slot of predetermined sub-carriers of a plurality of 5 layers of resource blocks with the same time and frequency resources, comprising steps of: multiplying the plurality of layers of DMRS selectively by one of the first and second orthogonal cover codes (OCCs), and by one of the first and second random sequences; multiplying the first and second OCCs multiplied with the second random sequence by -1 on the first slot or the second slot; and transmitting the plurality of 10 layers of resource blocks obtained to the mobile terminals. wherein, the first and second random sequences are selected from the QPSK alphabet, the first and second OCCs multiplied with the second random sequence are multiplied by -1 alternately on the first slot and second slot of the different predetermined sub-carriers, and the second random sequence on certain predetermined sub-carriers is rotated by angle θ,. According to the present disclosure, the four orthogonal DMRS are provided without additional signaling support, so the scheduling flexibility is improved at the base station side.
    • 本公开提供了一种无线通信方法,用于向移动终端发送在相同时间在多个5层资源块中的预定子载波的第一时隙和第二时隙上分配的解调参考信号(DMRS)的多个层,以及 频率资源,包括以下步骤:选择性地将多个DMRS层乘以第一和第二正交覆盖码(OCC)中的一个以及第一和第二随机序列之一; 在第一时隙或第二时隙将与第二随机序列相乘的第一和第二OCC乘以-1; 并将获得的多个10层的资源块发送到移动终端。 其中,从QPSK字母表中选择第一和第二随机序列,与第二随机序列相乘的第一和第二OCC在不同的预定子载波的第一时隙和第二时隙交替地乘以-1, 某些预定副载波上的随机序列以角度θ旋转。 根据本公开,提供四个正交DMRS而不需要额外的信令支持,因此在基站侧提高了调度灵活性。
    • 9. 发明申请
    • WIRELESS COMMUNICATION SYSTEM, BASE STATION THEREOF, AND SYMBOL TRANSMISSION METHOD
    • 无线通信系统及其基站,以及符号传输方法
    • WO2011060736A1
    • 2011-05-26
    • PCT/CN2010/078928
    • 2010-11-19
    • PANASONIC CORPORATIONXU, JingXU, MingZHANG, ZhiHOSHINO, MasayukiIMAMURA, Daichi
    • XU, JingXU, MingZHANG, ZhiHOSHINO, MasayukiIMAMURA, Daichi
    • H04L1/06H04B7/06H04B7/08H04L27/26H04J11/00H04W72/12
    • H04L5/0007H04B7/024H04B7/0667H04J11/0053H04L1/0606
    • The invention provides a wireless communication system, and a method for transmitting symbols by base stations of a plurality of cells to a user terminal in a Coordinated Multi-point transmission manner. The method comprises loading, in the base stations of respective cells, symbols to orthogonal frequency division multiplexing subcarriers in a coding manner of space frequency block code; performing a cyclic delay operation on the symbols loaded to the orthogonal frequency division multiplexing subcarriers among corresponding transmit antennas of the base stations of respective cells; and transmitting the symbols subjected to the cyclic delay operation to the user terminal in the Coordinated Multi-point transmission manner. When the loading is performed, successive symbols are loaded to subcarriers with low correlation, and meanwhile pairs of symbols encoded according to space frequency block code are loaded to two subcarriers with high correlation. This method is not affected by the number of cells, and keeps consistent with the technology in Version Rel-8 of LTE standards, and may provide an enhanced frequency diversity gain of a plurality of cell base station.
    • 本发明提供了一种无线通信系统,以及用于以协调的多点传输方式将多个小区的基站的符号发送给用户终端的方法。 该方法包括以空格频码块码的编码方式在各小区的基站中装载符号至正交频分复用子载波; 对加载到相应小区的基站的相应发射天线之中的正交频分复用子载波的符号执行循环延迟操作; 并且以协调的多点传输方式将经过循环延迟操作的符号发送到用户终端。 当进行加载时,连续符号被加载到具有低相关性的子载波上,同时根据空间频率块码编码的符号对加载到具有高相关性的两个子载波上。 该方法不受小区数量的影响,并且与LTE标准的版本Rel-8中的技术保持一致,并且可以提供多个小区基站的增强的频率分集增益。