会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 12. 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。
    • 13. 发明申请
    • Method for detecting the orthogonal code cdma signal
    • 用于检测正交码cdma信号的方法
    • US20070058701A1
    • 2007-03-15
    • US10562523
    • 2004-07-29
    • Yingmin WangGuiliang YangChengguo Sun
    • Yingmin WangGuiliang YangChengguo Sun
    • H04B1/00
    • H04B1/7105H04B1/7093H04B1/712
    • The present invention discloses a method for detecting orthogonal code CDMA signal implemented mainly through the following steps: estimating the total power of interference to the multi-path signals; performing matched filtering on the multi-path signals and performing maximum ratio combining on the multi-path signals by utilizing the total power of interference to the multi-path signals, to obtain the optimized matched filtering result; and performing joint detection on the optimized matched filtering result. There are two schemes for implementing: if the optimized matched filtering detection scheme is used, only the first two main steps are executed; if the joint detection scheme is used, all of the three steps are executed. In either of above two schemes, the interference code channels involved in the estimation of total power of interference to the multi-path signals are need to be selected, i.e., all of the code channels in the serving cell or the code channels in the serving cell which are not performed joint detection on are selected. As the present invention takes full advantage of the characteristic of orthogonal code as well as the channel estimation result, system performance can be improved at a lower price. The present invention is especially suitable for terminal devices in an orthogonal code Code Division Multiple Access system.
    • 本发明公开了一种用于检测正交码CDMA信号的方法,主要通过以下步骤实现:估计对多径信号的干扰总功率; 对多路径信号执行匹配滤波,并通过利用多路径信号的总干扰功率对多径信号进行最大比组合,以获得优化的匹配滤波结果; 对优化的匹配滤波结果进行联合检测。 有两种实现方案:如果使用优化的匹配过滤检测方案,只执行前两个主要步骤; 如果使用联合检测方案,则执行所有三个步骤。 在上述两种方案中的任一方面中,需要选择涉及对多路径信号的总干扰功率估计所涉及的干扰码信道,即服务小区中的所有码信道或服务中的码信道 选择不执行关联检测的单元。 由于本发明充分利用正交码的特征以及信道估计结果,可以以更低的价格提高系统性能。 本发明特别适用于正交码分多址系统中的终端设备。
    • 14. 发明申请
    • NOMADIC DATA ACCESS SYSTEM AND DEVICE
    • NOMADIC数据访问系统和设备
    • US20130337819A1
    • 2013-12-19
    • US13996519
    • 2011-12-20
    • Fei QinYingmin WangJian ZhaoJinbo Zhao
    • Fei QinYingmin WangJian ZhaoJinbo Zhao
    • H04W92/00
    • H04W92/00H04L12/2856H04W24/02H04W36/125H04W36/14H04W48/12H04W76/12H04W84/04H04W92/04
    • This application discloses a nomadic data access system and provides a new communication system and relevant devices to lower the complexity of the system. The system includes a core network and an NDA NodeB, wherein an NDA part in the core network is configured to establish a communication interface with the NDA NodeB, to establish a communication link for an NDA user equipment through the NDA NodeB and to transmit an NDA user data service to a 3GPP part in the core network; and the NDA NodeB is configured to establish the communication interface with the NDA part in the core network, to establish for the NDA user equipment the communication link with the NDA part in the core network and to transmit the NDA user data service, or to establish a communication link with a local area or wide area Internet and to transmit the NDA user data service to the local area or wide area Internet. This application further discloses devices in the system and relevant cell access and switching methods.
    • 该应用公开了一种游牧数据访问系统,并提供了一种新的通信系统和相关设备,以降低系统的复杂性。 该系统包括核心网络和NDA NodeB,其中核心网络中的NDA部分被配置为建立与NDA NodeB的通信接口,以通过NDA NodeB为NDA用户设备建立通信链路并传送NDA 用户数据服务到核心网络中的3GPP部分; NDA NodeB被配置为与核心网络中的NDA部分建立通信接口,为NDA用户设备建立与核心网络中的NDA部分的通信链路,并传送NDA用户数据服务,或建立 与局域网或广域互联网的通信链路,并将NDA用户数据业务传输到本地或广域网。 该应用还进一步公开了系统中的设备和相关的小区接入和切换方法。
    • 15. 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。
    • 19. 发明申请
    • METHOD, SYSTEM AND APPARATUS FOR SIGNAL GENERATION AND MESSAGE TRANSMISSION IN BROADBAND WIRELESS COMMUNICATIONS
    • 宽带无线通信信号发生和消息传输的方法,系统与设备
    • US20100254253A1
    • 2010-10-07
    • US12744550
    • 2008-11-26
    • Shaohui SunYang yuYingmin WangYongbin Xie
    • Shaohui SunYang yuYingmin WangYongbin Xie
    • H04J11/00
    • H04L5/0021H04L5/0019H04L5/0044
    • Method for signal generation in broadband wireless communications, comprises: A. modulating, segmenting and serial-parallel converting the signal data to be transmitted, then computing DFT of the serial-parallel converted data so as to transfer them to frequency domain; B. performing block unit modulating processing and block repeat modulating processing on the frequency domain data, then mapping the block units to assigned time-frequency positions; C. computing IFFT of the mapped block units, then adding them to the cycle prefix, thus the random sequences in time domain are generated. Apparatus for signal generation, Method and system for message transmission in broadband wireless communications are also disclosed. The problem of resource allocation and scheduling, and problem of interference coordination and control are solved, the throughput and performance of communication system are greatly improved.
    • 宽带无线通信信号产生方法包括:A.调制,分段和并行转换要传输的信号数据,然后计算并行转换数据的DFT,将其传送到频域; B.对频域数据执行块单元调制处理和块重复调制处理,然后将块单元映射到分配的时频位置; C.计算映射块单元的IFFT,然后将它们添加到循环前缀,从而生成时域中的随机序列。 还公开了用于信号生成的装置,用于宽带无线通信中的消息传输的方法和系统。 解决了资源分配和调度问题,干扰协调与控制问题,大大提高了通信系统的吞吐量和性能。
    • 20. 发明申请
    • 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与装置
    • US20100238847A1
    • 2010-09-23
    • US12741020
    • 2008-10-31
    • Shiqiang SuoGuojun XiaoXueming PanShaohui SunYingmin Wang
    • Shiqiang SuoGuojun XiaoXueming PanShaohui SunYingmin Wang
    • H04J3/00
    • 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。