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    • 1. 发明申请
    • Method of space-time encoding and decoding for frequency selective fading channel
    • 用于频率选择性衰落信道的时空编码和解码方法
    • US20060072680A1
    • 2006-04-06
    • US10518426
    • 2003-06-02
    • Yingmin WangXiaolong Ran
    • Yingmin WangXiaolong Ran
    • H04L1/02
    • H04B1/7105H04B2201/70707H04L1/0618
    • A space-time encoding and decoding for a frequency selective fading channel. An encoder takes two independent data fields of a time slot in input data as a processing unit with space-time orthogonal encoding method, encodes them and generates two data vectors, and two diversity signals, and transmits them simultaneously, each through one diversity antenna. A receiving terminal neglects mutual interference between said two diversity signals caused by non-orthogonality, performing joint detection only taking into account affect to said two diversity signals from multipath interference and multi-user interference, obtaining a decoding result. Implementing interference counteraction based on result of joint diction to remove interference between the two diversity signals, and then returning to the previous step to implement iteration for decoding. An independent data field as a processing unit for encoding and decoding, and the decoding takes an iteration method based on joint detection and interference counteraction.
    • 用于频率选择性衰落信道的时空编码和解码。 编码器将输入数据中的时隙的两个独立数据字段作为具有时空正交编码方法的处理单元,对它们进行编码并产生两个数据矢量和两个分集信号,并通过一个分集天线同时发送它们。 接收终端忽略由非正交性引起的所述两个分集信号之间的相互干扰,仅执行联合检测,仅考虑对来自多径干扰和多用户干扰的所述两个分集信号的影响,获得解码结果。 基于联合辞典的结果,实现干扰对抗,去除两个分集信号之间的干扰,然后返回上一步进行解码迭代。 作为用于编码和解码的处理单元的独立数据字段,并且解码采用基于联合检测和干扰抵消的迭代方法。
    • 2. 发明授权
    • Method of space-time encoding and decoding for frequency selective fading channel
    • 用于频率选择性衰落信道的时空编码和解码方法
    • US07606318B2
    • 2009-10-20
    • US10518426
    • 2003-06-02
    • Yingmin WangXiaolong Ran
    • Yingmin WangXiaolong Ran
    • H04B7/02
    • H04B1/7105H04B2201/70707H04L1/0618
    • The invention discloses a space-time encoding and decoding method for a frequency selective fading channel, comprising: an encoder takes two independent data fields of a time slot in input data as a processing unit with space-time orthogonal encoding method, encodes them and generates two data vectors, thereby forming two diversity signals, and transmitting said two diversity signals simultaneously with each through one diversity antenna; a receiving terminal neglects mutual interference between said two diversity signals caused by non-orthogonality; the terminal performing joint detection only taking into account affect to said two diversity signals from multipath interference and multi-user interference, thereby obtaining a decoding result; and implementing interference counteraction based on result of joint diction to remove interference between the two diversity signals, and then returning to the previous step to implement iteration for decoding processing. The number of iteration times can be predefined. The invention takes an independent data field as a processing unit for encoding and decoding, and the decoding takes an iteration method based on joint detection and interference counteraction. This invention provides a simple and effective way for space-time encoding and decoding for a frequency selective fading channel.
    • 本发明公开了一种用于频率选择性衰落信道的时空编码和解码方法,包括:编码器以输入数据中的时隙的两个独立数据字段作为具有时空正交编码方法的处理单元,对它们进行编码并产生 从而形成两个分集信号,并通过一个分集天线同时发送所述两个分集信号; 接收终端忽略由非正交性引起的所述两个分集信号之间的相互干扰; 所述终端执行联合检测仅考虑对来自多径干扰和多用户干扰的所述两个分集信号的影响,从而获得解码结果; 并根据联合描述的结果实现干扰对抗,以消除两个分集信号之间的干扰,然后返回到上一步来实现解码处理的迭代。 可以预定义迭代次数。 本发明采用独立的数据字段作为编码和解码的处理单元,解码采用基于联合检测和干扰抵消的迭代方法。 本发明提供了一种用于频率选择性衰落信道的时空编码和解码的简单且有效的方法。
    • 5. 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。
    • 9. 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。