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    • 34. 发明授权
    • System and method for mapping reference signal sequence in advanced long term evolution system
    • 在高级长期演化系统中映射参考信号序列的系统和方法
    • US08369302B2
    • 2013-02-05
    • US13257688
    • 2010-03-15
    • Bo DaiXin WuGuanghui YuZhisong Zuo
    • Bo DaiXin WuGuanghui YuZhisong Zuo
    • H04B7/208
    • H04L5/0048H04L27/2602
    • The present invention provides a method and system for mapping a reference signal sequence in an advanced Long Term Evolution (LTE) system, and the method and the system are used to map the reference signal sequence to an orthogonal frequency division multiplexing symbol of l. The method includes: when the system uses a normal cyclic prefix, determining the symbol l according to an expression, and mapping the reference signal sequence to a location of a sub-carrier k on the symbol l of an antenna port p. The system includes: a mapping module, a first acquiring module and a second acquiring module. The system and the method which are provided ensure the transmission performance while ensuring the interference randomization. In addition, the system and the method are compatible with existing LTE systems, thus realizing high-order Multiple Input Multiple Output (MIMO) transmission, supporting the usage of the corresponding techniques.
    • 本发明提供了一种用于在高级长期演进(LTE)系统中映射参考信号序列的方法和系统,并且该方法和系统用于将参考信号序列映射到l的正交频分复用符号。 该方法包括:当系统使用正常循环前缀时,根据表达式确定符号l,并将参考信号序列映射到天线端口p的符号l上的子载波k的位置。 该系统包括:映射模块,第一获取模块和第二获取模块。 提供的系统和方法确保了传输性能,同时确保干扰随机化。 此外,该系统和方法与现有的LTE系统兼容,从而实现高阶多输入多输出(MIMO)传输,支持相应技术的使用。
    • 36. 发明授权
    • Method and system for transmitting downlink control information
    • 传输下行控制信息的方法和系统
    • US09025538B2
    • 2015-05-05
    • US13257859
    • 2009-12-29
    • Bo DaiXin WuGuanghui YuWeijun Li
    • Bo DaiXin WuGuanghui YuWeijun Li
    • H04L1/00H04W28/04H04W48/08H04W48/16
    • H04L1/0072H04W28/04H04W48/08H04W48/16
    • The present disclosure discloses a method and system for transmitting downlink control information, for solving the problem of how to indicate a transmission scheme when a cyclic redundancy check code in the downlink control channel is scrambled with the semi-persistently scheduled cell radio network temporary identifier. In order to support the bi-flow beam forming technology in the LTE-A R9, the present disclosure provides a downlink control information Format 1A, which may, when the cyclic redundancy check code in the downlink control channel is scrambled with the semi-persistently scheduled cell radio network temporary identifier, indicates a method for transmitting downlink control information, for example, single-layer transmission, transmit diversity, or a transmission scheme simultaneously involving single-layer transmission and transmit diversity, which guarantees flexibility of system schedule. The present disclosure adds no signaling overhead and has good adaptability with the LTE R8.
    • 本公开公开了一种用于发送下行链路控制信息的方法和系统,用于解决当下行链路控制信道中的循环冗余校验码被半持续调度的小区无线电网络临时标识符加扰时如何指示传输方案的问题。 为了支持LTE-A R9中的双流波束形成技术,本公开提供了一种下行链路控制信息格式1A,其可以在下行链路控制信道中的循环冗余校验码被半持续地加扰 表示用于发送下行链路控制信息的方法,例如单层传输,发送分集或同时涉及单层传输和发送分集的传输方案,其保证系统调度的灵活性。 本公开不会增加信令开销,并且与LTE R8具有良好的适应性。
    • 37. 发明授权
    • Signal transmission method and frame structure adopted in a TDD system
    • TDD系统中采用的信号传输方法和帧结构
    • US09001707B2
    • 2015-04-07
    • US12674336
    • 2008-10-23
    • Bo DaiShuqiang XiaPeng HaoChunli LiangGuanghui YuLiujun HuBin Yu
    • Bo DaiShuqiang XiaPeng HaoChunli LiangGuanghui YuLiujun HuBin Yu
    • H04J3/00H04B7/26H04L27/26H04L27/28H04W48/12
    • H04B7/2656H04L27/2602H04W48/12
    • A signal transmission method in a Time Division Duplex (TDD) system is disclosed. The method comprises following steps: within a time length of a half-frame of a radio frame, base station transmits signal on a downlink special time slot, thereafter does not transmit signal on a Guard Period (GP), and then receives signal on an uplink special time slot; all time lengths of other uplink or downlink normal time slots for transmitting signal are equal; the total time length of the downlink special time slot, the guard period and the uplink special time slot is integer times of the time length of an uplink or downlink normal time slot. In addition, a frame structure adopted in the TDD system which corresponds to the method is disclosed. The present invention makes it flexible to set the duration of the GP and it is guaranteed that, even if a synchronization signal adopts power promotion, it will not bring great interference to uplink reception of other base stations; in addition, the utilization efficiency of the system is improved.
    • 公开了时分双工(TDD)系统中的信号传输方法。 该方法包括以下步骤:在无线帧的半帧的时间长度内,基站在下行专用时隙发送信号,之后不在保护周期(GP)上发送信号,然后在 上行专用时隙; 用于发送信号的其他上行链路或下行链路正常时隙的所有时间长度相等; 下行专用时隙的总时间长度,保护周期和上行专用时隙是上行链路或下行链路正常时隙的时间长度的整数倍。 另外,公开了对应于该方法的TDD系统采用的帧结构。 本发明灵活设置GP的持续时间,并且保证即使同步信号采用功率提升,也不会对其他基站的上行接收带来很大的干扰; 此外,系统的利用效率得到提高。
    • 39. 发明授权
    • Methods and apparatuses for generating and parsing continuous resource allocation signaling
    • 用于生成和解析连续资源分配信令的方法和装置
    • US08340037B2
    • 2012-12-25
    • US12674677
    • 2007-12-24
    • Bo DaiShuqiang XiaGuanghui Yu
    • Bo DaiShuqiang XiaGuanghui Yu
    • H04W4/00H04J1/00H04L27/28H04B7/02H04B7/00
    • H04L5/0094H04L5/0007H04L5/0039
    • A method for generating continuous resource allocation signaling comprises: a sender determines a value of the total number of resource blocks NRB in a system according to the total resource number in the system and determines, according to the amount and location of the total resources occupied by the continuous resources allocated to the target user equipment, the number of continuous resource blocks allocated to the user equipment LCRBs and the value of the index number of the starting resource block RBstart in the continuous resource blocks allocated to the user equipment; the sender compares LCRBs−1 with └NRB/2┘ to compute the value RIV of the resource allocation signaling of the user equipment; if the LCRBs−1 is greater than the └NRB/2┘, then the RIV is NRB(NRB−LCRBs+1)+(NRB−1−RBstart); else the RIV is NRB(LCRBs−1)+RBstart; and the resource allocation signaling of the target user equipment is generated according to RIV and transmitted. An apparatus for generating continuous resource allocation signaling, and a method and an apparatus for parsing continuous resource allocation signaling, are also disclosed. The present invention ensures that under any resource allocation situation the overhead for resource allocation signaling is always ceil ( log 2 ⁢ N · ( N + 1 ) 2 ) .
    • 一种用于生成连续资源分配信令的方法包括:发送方根据系统中的总资源数量确定系统中资源块总数NRB的值,并且根据系统占用的总资源的数量和位置确定 分配给目标用户设备的连续资源,分配给用户设备LCRB的连续资源块的数量和分配给用户设备的连续资源块中起始资源块RBstart的索引号的值; 发送方将LCRB-1与└NRB/ 2'进行比较,以计算用户设备的资源分配信令的值RIV; 如果LCRBs-1大于└NRB/ 2“,那么RIV是NRB(NRB-LCRBs + 1)+(NRB-1-RBstart); 否则RIV是NRB(LCRBs-1)+ RBstart; 目标用户设备的资源分配信令根据RIV生成并发送。 还公开了一种用于生成连续资源分配信令的装置,以及用于解析连续资源分配信令的方法和装置。 本发明确保在任何资源分配情况下资源分配信令的开销总是小于(log 2 N·(N + 1)2)。
    • 40. 发明申请
    • System and Method for Mapping Reference Signal Sequence in Advanced Long Term Evolution System
    • 高级长期演进系统中参考信号序列映射的系统与方法
    • US20120182974A1
    • 2012-07-19
    • US13257688
    • 2010-03-15
    • Bo DaiXin WuGuanghui YuZhisong Zuo
    • Bo DaiXin WuGuanghui YuZhisong Zuo
    • H04W72/04
    • H04L5/0048H04L27/2602
    • The present invention provides a method and system for mapping a reference signal sequence in an advanced Long Term Evolution (LTE) system, and the method and the system are used to map the reference signal sequence to an orthogonal frequency division multiplexing symbol of l. The method includes: when the system uses a normal cyclic prefix, determining the symbol l according to an expression, and mapping the reference signal sequence to a location of a sub-carrier k on the symbol l of an antenna port p. The system includes: a mapping module, a first acquiring module and a second acquiring module. The system and the method which are provided ensure the transmission performance while ensuring the interference randomization. In addition, the system and the method are compatible with existing LTE systems, thus realizing high-order Multiple Input Multiple Output (MIMO) transmission, supporting the usage of the corresponding techniques.
    • 本发明提供了一种用于在高级长期演进(LTE)系统中映射参考信号序列的方法和系统,并且该方法和系统用于将参考信号序列映射到l的正交频分复用符号。 该方法包括:当系统使用正常循环前缀时,根据表达式确定符号l,并将参考信号序列映射到天线端口p的符号l上的子载波k的位置。 该系统包括:映射模块,第一获取模块和第二获取模块。 提供的系统和方法确保了传输性能,同时确保干扰随机化。 此外,该系统和方法与现有的LTE系统兼容,从而实现高阶多输入多输出(MIMO)传输,支持相应技术的使用。