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    • 1. 发明申请
    • Method and Apparatus for Enhanced Uplink Data Transmission
    • 用于增强上行链路数据传输的方法和装置
    • US20080198800A1
    • 2008-08-21
    • US11914761
    • 2006-05-10
    • Xiaobo ZhangNi MaYueheng Li
    • Xiaobo ZhangNi MaYueheng Li
    • H04Q7/00
    • H04W72/1257H04W72/1268
    • The present invention provides a method and apparatus used for enhanced uplink data transmission, comprising the steps of: monitoring the communication status of a plurality of UEs (user equipment) which conduct uplink data transmission in the RAN; receiving the data transmitted on at least one dedicated uplink channel from at least one of the plurality of UEs; according to the communication status of the plurality of UEs, dynamically allocating the number of dedicated uplink channels for at least one UE of the plurality of UEs. Utilization of the present invention can enable mobile terminal to conduct more efficient uplink transmission.
    • 本发明提供一种用于增强上行链路数据传输的方法和装置,包括以下步骤:监视在RAN中进行上行链路数据传输的多个UE(用户设备)的通信状态; 从所述多个UE中的至少一个接收在至少一个专用上行链路信道上发送的数据; 根据多个UE的通信状况,为多个UE中的至少一个UE动态分配专用上行链路信道的数量。 本发明的利用可以使得移动终端能够进行更有效的上行链路传输。
    • 4. 发明申请
    • Method and Apparatus for Joint Detection in Downlink Tdd Cdma
    • 下行Tdd Cdma联合检测方法与装置
    • US20080247337A1
    • 2008-10-09
    • US10599185
    • 2005-03-04
    • Yueheng LiGang WuXuejun ZhangNi Ma
    • Yueheng LiGang WuXuejun ZhangNi Ma
    • H04J3/00
    • H04B1/7105H04B1/7083
    • A method and apparatus for implementing downlink JD (Joint Detection) in TDD CDMA communication systems, wherein the steps to be executed in the UE comprises: receiving downlink signals from a network system in a specific timeslot; acquiring the active primary and secondary channelisation codes in the specific timeslot, through processing the downlink signal; acquiring the initial ACC (Active Channelisation Codes) information for use in implementing JD in the next frame, through implementing a JD algorithm on the downlink signal by using the primary and secondary channelisation codes. An ACC dedicated channel is sent on the FPACH, carrying information relative to the use of secondary channelisation codes.
    • 一种用于在TDD CDMA通信系统中实现下行链路JD(Joint Detection)的方法和装置,其中在UE中执行的步骤包括:在特定时隙中从网络系统接收下行链路信号; 通过处理下行链路信号来获取特定时隙中的主要主要和次要信道化码; 通过使用主要和次要信道化代码,通过在下行链路信号上实现JD算法来获取用于在下一帧中实现JD的初始ACC(主动信道化码)信息。 在FPACH上发送ACC专用信道,携带相对于使用辅助信道化码的信息。
    • 5. 发明申请
    • Method and system for radio link establishment and maintenance with p2p communication in wireless communication
    • 无线通信无线链路建立与维护方法与系统,无线通信中的p2p通信
    • US20060168343A1
    • 2006-07-27
    • US10547587
    • 2004-03-01
    • Ni MaLi SunQunli JiaXuejun ZhangJiang chengYueheng Li
    • Ni MaLi SunQunli JiaXuejun ZhangJiang chengYueheng Li
    • G06F15/173G06F15/16
    • H04W52/38H04W24/00H04W52/383H04W52/48H04W52/50H04W76/10H04W92/18
    • A method is provided for establishing P2P radio connection in wireless communication networks, comprising: the user equipment, as the link probing originator, transmits link probing signals via the allocated direct communication link to another user equipment as the link probing responder, according to the initial probing power provided by the wireless communication system; said another user equipment transmits the ACK message to the link probing originator via the direct communication link when receiving the link probing signals and said link probing signals meet the basic requirement for direct communication; the user equipment, as the link probing originator, monitors the direct communication link, and communicates directly with the link probing responder via the direct communication link after detecting the ACK message from the link probing responder. This method effectively guarantees the procedure of establishing P2P communication between the user equipments in P2P communication course, by utilizing the link probing process of transmitting link probing signals.
    • 提供了一种用于在无线通信网络中建立P2P无线电连接的方法,包括:作为链路探测发起者的用户设备根据初始化的链路探测应答器经由所分配的直接通信链路向另一个用户设备发送链路探测信号 由无线通信系统提供的探测功率; 所述另一用户设备在接收到链路探测信号时,经由直接通信链路将链路探测发起者发送ACK消息,并且所述链路探测信号满足直接通信的基本要求; 作为链路探测发起者的用户设备监视直接通信链路,并且在从链路探测应答器检测到ACK消息之后,经由直接通信链路与链路探测应答器直接通信。 该方法通过利用发送链路探测信号的链路探测过程有效地保证了P2P通信过程中用户设备之间建立P2P通信的过程。
    • 7. 发明申请
    • Adaptive Mimo Wireless Communicationsi System
    • 自适应Mimo无线通信系统
    • US20070223367A1
    • 2007-09-27
    • US11568276
    • 2005-04-25
    • Gang WuYueheng LiYonggang Du
    • Gang WuYueheng LiYonggang Du
    • H04L1/06
    • H04L1/0675H04L1/0001H04L1/0625H04L1/065H04L1/0656
    • A GMIMO-JD (Generalized Multiple Input Multiple Output—Joint Detection) method to be executed by a receiver for use in MIMO (Multiple Input Multiple Output) wireless communication systems, comprising: receiving the radio signal sent form a transmitter; estimating the propagation channel quality of the radio signal; sending a feedback information to the transmitter according to the estimation result such that the transmitter can choose and reconfigure a GMIMO architecture suitable for the propagation channel according to the feedback information; reconfiguring a GJD architecture suitable for the receiver according to the estimation result; processing the received radio signal from the transmitter by exploiting the chosen GJD architecture.
    • 一种由用于MIMO(多输入多输出)无线通信系统的接收机执行的GMIMO-JD(广义多输入多输出 - 联合检测)方法,包括:接收从发射机发送的无线电信号; 估计无线电信号的传播信道质量; 根据估计结果向发射机发送反馈信息,使得发射机可以根据反馈信息选择和重新配置适合于传播信道的GMIMO架构; 根据估计结果重新配置适合接收机的GJD架构; 通过利用所选择的GJD架构处理来自发射机的接收的无线电信号。
    • 8. 发明授权
    • Method and apparatus for supporting downlink joint detection in TDD CDMA systems
    • 用于支持TDD CDMA系统中的下行链路联合检测的方法和装置
    • US08204024B2
    • 2012-06-19
    • US10580722
    • 2004-11-04
    • Yueheng LiLi SunGang Wu
    • Yueheng LiLi SunGang Wu
    • H04B7/216
    • H04B1/7105H04B2201/709709
    • A method is proposed for supporting downlink JD (joint detection) in a TDD CDMA communication network system, comprising steps of: judging whether the CAI (code allocation information) in a downlink timeslot will change in the next TTI (transmission time interval); if the CAI will change, inserting the changed CAI as a specific control information into a specified field in the traffic burst in the downlink timeslot corresponding to current TTI; sending the traffic burst containing the specific control information to each UE (user equipment) in the downlink timeslot via a downlink channel.
    • 提出了一种支持TDD CDMA通信网络系统中的下行链路JD(联合检测)的方法,包括以下步骤:判断下行时隙中的CAI(码分配信息)是否在下一个TTI(传输时间间隔)内发生变化; 如果CAI将改变,则将改变的CAI作为特定控制信息插入到对应于当前TTI的下行链路时隙中的业务突发中的指定字段中; 经由下行链路信道向下行链路时隙中的每个UE(用户设备)发送包含特定控制信息的业务突发。
    • 9. 发明申请
    • Method and apparatus for supporting direct link communication in tdd cdma system
    • 用于支持tdd cdma系统中直接链接通信的方法和装置
    • US20060245398A1
    • 2006-11-02
    • US10551967
    • 2004-03-29
    • Yueheng LiSun Li
    • Yueheng LiSun Li
    • H04B7/216H04L12/43
    • H04W48/10H04B7/2668H04J13/004H04W52/383H04W56/00H04W84/04
    • A method for supporting P2P communication between two user equipments in TDD CDMA systems, performed by user equipment, comprising: receiving signals transferred via the downlink control channel from network system; acquiring the timeslot allocation information and the spreading code allocation information of other active user equipments allocated in the specific downlink timeslot associated with the direct link used by said user equipments, according to the received signals; and synchronizing the P2P communication signals received by the user equipment and signals from network system, according to the acquired timeslot allocation information and spreading code allocation information, so as to reduce the interference caused by the downlink signals transmitted from network system to other user equipments during the P2P communication process.
    • 一种支持由用户设备执行的TDD CDMA系统中的两个用户设备之间的P2P通信的方法,包括:经由所述下行链路控制信道从网络系统接收的信号; 根据接收到的信号,获取在与所述用户设备使用的直接链路相关联的特定下行链路时隙中分配的其他活动用户设备的时隙分配信息和扩展码分配信息; 并根据所获取的时隙分配信息和扩展码分配信息来同步由用户设备接收的P2P通信信号和来自网络系统的信号,以便减少由网络系统发送到其他用户设备的下行链路信号所引起的干扰 P2P通信过程。
    • 10. 发明申请
    • Channel estimation for a cdma system using pilot symbols
    • 使用导频符号的cdma系统的信道估计
    • US20060227749A1
    • 2006-10-12
    • US10555268
    • 2004-04-29
    • Xuejun ZhangYueheng Li
    • Xuejun ZhangYueheng Li
    • H04B7/216
    • H04B1/707H04B2201/70701H04L25/0228H04L27/261
    • The present invention provides a CDMA based communication system with improved channel estimation capability with respect to multiple pilots transmitted via channels dedicated to the system. In one embodiment of the invention, a CDMA based communication system compares the received multiple pilots to one another and selects a pilot with the largest power level. The channel estimation is performed based on the pilot with the largest power level to derive the associated channel parameters. The information intended for the system is then demodulated, based on the associated channel parameters, to retrieve user data In another embodiment of the invention, a CDMA based communication system first performs channel estimation on each of the dedicated channels, via each of which a pilot is received by the system, to derive channel parameters associated with each channel. Then all the channel parameters are combined to derive final channel parameters. The information intended for the system is demodulated, based on the final channel parameters, to retrieve user data. In this way, more precise channel parameters can be obtained.
    • 本发明提供了一种基于CDMA的通信系统,其具有相对于经由专用于该系统的信道发送的多个导频的改进的信道估计能力。 在本发明的一个实施例中,基于CDMA的通信系统将所接收的多个导频彼此进行比较并选择具有最大功率电平的导频。 基于具有最大功率电平的导频执行信道估计,以导出相关的信道参数。 然后,基于相关的信道参数来解调用于系统的信息以检索用户数据。在本发明的另一个实施例中,基于CDMA的通信系统首先在每个专用信道上执行信道估计,每个专用信道经由每个专用信道 由系统接收,导出与每个通道相关联的通道参数。 然后将所有通道参数组合起来导出最终通道参数。 基于最终通道参数解调用于系统的信息以检索用户数据。 以这种方式,可以获得更精确的通道参数。