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    • 1. 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。
    • 2. 发明授权
    • Method for realizing frequency domain scheduling in the time division duplex system and the system thereof
    • 在时分双工系统及其系统中实现频域调度的方法
    • US07733765B2
    • 2010-06-08
    • US12281574
    • 2007-08-14
    • Shiqiang SuoYingmin WangQinling Xiong
    • Shiqiang SuoYingmin WangQinling Xiong
    • H04J11/00H04J1/16
    • 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。
    • 3. 发明授权
    • Method, system and base station for determining data transmission offsets
    • 用于确定数据传输偏移的方法,系统和基站
    • US08483103B2
    • 2013-07-09
    • US12740506
    • 2008-10-30
    • Shiqiang SuoXueming PanYingmin WangShaohui SunYongbin Xie
    • Shiqiang SuoXueming PanYingmin WangShaohui SunYongbin Xie
    • H04L5/14
    • H04W56/002H04W56/0075H04W72/0446H04W92/24
    • A method for determining a data transmission offset includes: synchronizing a first time division duplex TDD system with a second TDD system (a500); determining a transmission timing advance of a user terminal according to a deviation between random access time and desired time of the user equipment during establishing the uplink synchronization of the second TDD system (a501); determining an offset of a time slot of the second TDD system according to a time difference between the time slots of the first TDD system and the second TDD system (a502); and obtaining a data transmission offset of the time slot by adding the determined offset of the time slot to the determined transmission timing advance (a503). A system and a base station for determining a data transmission offset are provided.
    • 一种用于确定数据传输偏移的方法包括:使第一时分双工TDD系统与第二TDD系统同步(a500); 根据在建立第二TDD系统的上行链路同步期间用户设备的随机访问时间与期望时间之间的偏差确定用户终端的传输定时提前(a501); 根据第一TDD系统和第二TDD系统的时隙之间的时间差来确定第二TDD系统的时隙的偏移量(a502); 以及通过将所确定的所述时隙的偏移量与所确定的发送定时提前相加来获得所述时隙的数据传输偏移量(a503)。 提供了一种用于确定数据传输偏移的系统和基站。
    • 4. 发明授权
    • Method and apparatus for data transmission in a time division duplexing system
    • 时分双工系统中数据传输的方法和装置
    • US08457032B2
    • 2013-06-04
    • US12741020
    • 2008-10-31
    • Shiqiang SuoGuojun XiaoXueming PanShaohui SunYingmin Wang
    • Shiqiang SuoGuojun XiaoXueming PanShaohui SunYingmin Wang
    • H04W4/00
    • H04W48/12H04B7/2643H04L27/2602H04L27/2605H04W16/00
    • A method for data transmission in a TDD system is disclosed. The method includes: configuring, by a base station, a length respectively for a Downlink Pilot Slot (DwPTS) and an Uplink Pilot Slot (UpPTS) within a special field of a radio half-frame based on a current coverage area taking one Orthogonal Frequency Division Multiplexing (OFDM) symbol as a unit, and issuing a configured result to a user device, wherein a total length of the DwPTS, a Guard Period (GP) slot and the UpPTS is kept to be 1 ms; constructing, by the base station, radio half-frames for data transmission according to the configured result. An apparatus for data transmission in the TDD system is also disclosed. According to the present invention, coverage area of different levels with smaller granularity is supported, radio resources are saved and transmission efficiency is increased.
    • 公开了TDD系统中的数据传输方法。 该方法包括:基站采用一个正交频率的当前覆盖区域,分别针对无线电半帧的特殊字段中的下行链路导频时隙(DwPTS)和上行链路导频时隙(UpPTS)分别设置长度 分区复用(OFDM)符号作为一个单元,并且向用户设备发布配置的结果,其中DwPTS的总长度,保护周期(GP)时隙和UpPTS保持为1ms; 根据配置结果,由基站构建用于数据传输的无线电半帧。 还公开了TDD系统中的数据传输装置。 根据本发明,支持具有较小粒度的不同级别的覆盖区域,节省了无线资源,提高了传输效率。
    • 5. 发明授权
    • Method and apparatus for data transmission
    • 用于数据传输的方法和装置
    • US08416885B2
    • 2013-04-09
    • 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进行资源元素映射,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 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。