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    • 3. 发明授权
    • Method, device, and terminal for physical layer random access in wideband TDD mobile communication system
    • 宽带TDD移动通信系统中物理层随机接入的方法,设备和终端
    • US08072932B2
    • 2011-12-06
    • US12161310
    • 2007-01-04
    • Shaohui SunYingmin WangLibo WangHai Bi
    • Shaohui SunYingmin WangLibo WangHai Bi
    • H04Q7/00
    • H04L5/023H04L5/0007H04L5/006H04W74/006H04W74/0866
    • A method for physical layer random access in wideband TDD mobile communication system is disclosed, and the method comprises: receiving the system broadcast message of the cell, obtaining the configuration information of the frequency band in frequency domain in the UpPTS time slot of the cell; and the terminal sends random access sequences to the BS in the UpPTS time slot according to the configuration information of the frequency band in the UpPTS time slot. The configuration information of the frequency band in frequency domain in the UpPTS time slot comprises the information about the frequency band number that the total bandwidth used is divided in the UpPTS time slot, the information about the bandwidth size of each frequency band, and the information about the position of the frequency point. Phod, device and terminal for physical layer random access in wideband TDD mobile communication system provided in the present invention can use the frequency bands whose time slots are different to perform network access, which can reduce the competition and collision probability when sending random access sequences, and can realize an efficient random access procedure.
    • 公开了一种宽带TDD移动通信系统中物理层随机接入的方法,该方法包括:接收小区的系统广播消息,获取小区UpPTS时隙频域中频带的配置信息; 并且终端根据UpPTS时隙中的频带的配置信息在UpPTS时隙中向BS发送随机接入序列。 UpPTS时隙中的频域中的频带的配置信息包括关于在UpPTS时隙中分配所使用的总带宽的频带数,关于每个频带的带宽大小的信息以及信息 关于频率点的位置。 本发明提供的宽带TDD移动通信系统中的物理层随机接入的设备和终端可以使用时隙不同的频带来执行网络接入,这可以在发送随机接入序列时降低竞争和冲突概率, 并可实现有效的随机存取程序。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR DATA TRANSMISSION
    • 数据传输的方法和装置
    • US20100246712A1
    • 2010-09-30
    • US12742123
    • 2008-11-10
    • Shiqiang SuoYingmin WangWengang Li
    • Shiqiang SuoYingmin WangWengang Li
    • H04L27/00
    • H04B7/12H04B7/0617H04B7/068H04B7/10H04L5/0044H04L5/0048
    • A method for data transmission is disclosed. The method includes: performing, by a system, resource element mapping on modulation symbols which include data to be transmitted and reference signals and which are allocated to antenna ports of a designated type; performing antenna port mapping on the modulation symbols which are through the resource element mapping; and generating Orthogonal Frequency Division Multiplexing (OFDM) signals based on the modulation symbols which are through the antenna port mapping and transmitting the OFDM signals via physical antennas. The present invention also discloses an apparatus for data transmission. In the method and apparatus provided by the present invention, through establishing a mapping relationship between physical antenna elements and antenna ports, beamforming weights are added to modulation symbols of users at the same time. Thus, beamforming operation of the users is implemented. Accordingly, the system may support flexible beamforming transmission on frequency-domain, which greatly improves the flexibility of data transmission of the system.
    • 公开了一种用于数据传输的方法。 该方法包括:通过系统对包括要发送的数据和参考信号的调制符号执行资源元素映射,并将其分配给指定类型的天线端口; 对通过资源元素映射的调制符号执行天线端口映射; 以及基于通过天线端口映射并通过物理天线发送OFDM信号的调制符号来生成正交频分复用(OFDM)信号。 本发明还公开了一种用于数据传输的装置。 在本发明提供的方法和装置中,通过建立物理天线元件和天线端口之间的映射关系,波束成形权重被同时添加到用户的调制符号。 因此,实现了用户的波束成形操作。 因此,该系统可以在频域上支持灵活的波束成形传输,这大大提高了系统的数据传输的灵活性。
    • 10. 发明申请
    • METHOD FOR REALIZING FREQUENCY DOMAIN SCHEDULING IN THE TIME DIVISION DUPLEX SYSTEM AND THE SYSTEM THEREOF
    • 在时分双工系统中实现频域调度的方法及其系统
    • US20090052357A1
    • 2009-02-26
    • US12281574
    • 2007-08-14
    • Shiqiang SuoYingmin WangQinling Xiong
    • Shiqiang SuoYingmin WangQinling Xiong
    • H04L5/14H04J13/00
    • H04L5/1484H04L5/0023H04L5/006H04L25/03343H04L27/261H04L2025/03414H04L2025/03426
    • A method and system for achieving frequency domain scheduling in a time division duplex system is disclosed, the method comprising: a first device transmits a non pre-coded reference symbol to a second device; from the reference symbol, the second device obtains a channel impulse response matrix experienced by the reference symbol transmitted from the first device, and according to the channel impulse response matrix, obtains linear spatial domain pre-coding matrix of candidate physical resource blocks used in transmitting data to the first device; from the channel impulse response matrix and the linear spatial domain pre-coding matrix, the second device obtains the channel quality indication of the candidate physical resource blocks; and performs the frequency domain scheduling according to the channel quality indication. The use of the method not only solves the problem in the prior art that the frequency domain scheduling is unable to be performed when a channel sounding method is employed, but also the contradiction in the use of the frequency domain scheduling and the linear spatial domain pre-coding. A communication system is also disclosed.
    • 公开了一种在时分双工系统中实现频域调度的方法和系统,所述方法包括:第一设备将非预编码参考符号发送到第二设备; 从参考符号,第二设备获得由第一设备发送的参考符号所经历的信道脉冲响应矩阵,并且根据信道脉冲响应矩阵获得用于发送的候选物理资源块的线性空间域预编码矩阵 数据到第一个设备; 从信道脉冲响应矩阵和线性空间域预编码矩阵中,第二设备获得候选物理资源块的信道质量指示; 并根据信道质量指示进行频域调度。 该方法的使用不仅解决了现有技术中当采用信道探测方法时不能执行频域调度的问题,而且还使用频域调度和线性空间域预采用的矛盾 -编码。 还公开了通信系统。