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    • 5. 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。
    • 6. 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。
    • 7. 发明授权
    • Transmission method for a time division duplex mobile communication system
    • 时分双工移动通信系统的传输方法
    • US08391251B2
    • 2013-03-05
    • US11996829
    • 2006-07-21
    • Shaohui SunYingmin WangShiqiang Suo
    • Shaohui SunYingmin WangShiqiang Suo
    • H04J3/00H04B7/02
    • H04B7/2656H04W56/003
    • A method for a time division duplex mobile communication system comprises that setting a minimum unit of transmission time interval and a system frame structure, wherein each radio sub frame is composed of a downlink pilot time slot, a switching guard period, a synchronization time slot and a plurality of service time slots, and the transmission time interval uses the length of time slot as a unit; a user obtaining downlink synchronization by receiving downlink pilot information of the downlink pilot time slot, and obtaining corresponding configuration information of cell by reading cell broadcasting information, and then transmitting uplink synchronization information in the synchronization time slot to fulfill a random access process, wherein the configuration information includes transmission time interval and system frame structure information; the network side/the user transmitting call information to an opposite end, and the opposite end processing call acknowledgement according to the transmission time interval; the network side allocating a channel for the user, wherein the network side and the user communicates through the allocated channel. The method reduces data transmission delay during communication, improves call throughout.
    • 一种时分双工移动通信系统的方法,包括设定传输时间间隔的最小单位和系统帧结构,其中每个无线电子帧由下行链路导频时隙,切换保护周期,同步时隙和 多个服务时隙,并且传输时间间隔使用时隙的长度作为一个单位; 用户通过接收下行链路导频时隙的下行链路导频信息获得下行链路同步,并通过读取小区广播信息获得小区的相应配置信息,然后在同步时隙中发送上行同步信息,以实现随机接入过程,其中, 配置信息包括传输时间间隔和系统帧结构信息; 网络侧/用户将呼叫信息发送到相对端,并且根据传输时间间隔进行相对端处理呼叫确认; 网络侧为用户分配信道,其中网络侧和用户通过分配的信道进行通信。 该方法减少通信期间的数据传输延迟,改善呼叫。
    • 9. 发明授权
    • Method and an apparatus for determining the radio frame structure of time division duplex system
    • 用于确定时分双工系统的无线电帧结构的方法和装置
    • US08472465B2
    • 2013-06-25
    • US12740972
    • 2008-11-03
    • Shiqiang SuoXueming PanShaohui SunYingmin WangYongbin XieKe WangHai Tang
    • Shiqiang SuoXueming PanShaohui SunYingmin WangYongbin XieKe WangHai Tang
    • H04B7/212
    • H04B7/2656H04W56/003
    • A method for determining the radio frame structure of a Time Division Duplex system is disclosed, which comprises: configuring, by the network side, the radio frame structure used for service transmission as containing two half-frames each of 5 ms, wherein each half-frame consists of eight service time slots of 0.5 ms and one special time slot field of 1 ms, two consecutive service time slots form a subframe of which the length is 1 ms, and the special time slot field contains a DwPTS, a GP and an UpPTS; determining the lengths of the DwPTS, the GP and the UpPTS in the special time slot field according to the requirements of the coverage range, and determining the radio frame structure used for service transmission. By reconfiguring the radio frame structure, the invention can flexibly support different coverage ranges, enhance the flexibility of satisfying different service requirements, and implement the coexistence of two types of TDD systems.
    • 公开了一种用于确定时分双工系统的无线电帧结构的方法,其包括:由网络侧将用于服务传输的无线电帧结构配置为包含每5ms的两个半帧,其中, 帧由0.5ms的8个服务时隙和1ms的特殊时隙字段组成,两个连续的服务时隙形成长度为1ms的子帧,特殊时隙字段包含DwPTS,GP和 UpPTS; 根据覆盖范围的要求确定特殊时隙字段中的DwPTS,GP和UpPTS的长度,以及确定用于业务传输的无线帧结构。 通过重新配置无线帧结构,本发明可以灵活地支持不同的覆盖范围,增强满足不同业务需求的灵活性,实现两种TDD系统的共存。