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    • 1. 发明申请
    • UPLINK REFERENCE SIGNAL SEQUENCE ASSIGNMENTS IN WIRELESS NETWORKS
    • 无线网络中的上行链路参考信号序列分配
    • WO2009023692A2
    • 2009-02-19
    • PCT/US2008072958
    • 2008-08-13
    • TEXAS INSTRUMENTS INCBERTRAND PIERREMUHAREMOVIC TARIKSHEN ZUKANG
    • BERTRAND PIERREMUHAREMOVIC TARIKSHEN ZUKANG
    • H04B7/26
    • H04L27/2613H04J11/0069H04W72/1284
    • Transmission of sequences in wireless networks from a user equipment (UE) includes various types of reference signals, such as a sounding reference signal (SRS) and a physical uplink control channel (PUCCH) symbol. The UE receives (402) an indication of a reference signal sequence group number u, wherein physical uplink control channel (PUCCH) sequences are divided into groups having at least one sequence each and wherein sounding reference signal (SRS) sequences are divided into groups having at least one sequence each. The UE produces (414) a sequence from an SRS sequence group with the sequence group number u when an SRS is to be transmitted and produces (412) a sequence from a PUCCH sequence group with the sequence group number u when a PUCCH symbol is to be transmitted. The UE produces (416) a transmission signal using the produced sequence.
    • 来自用户设备(UE)的无线网络中的序列传输包括各种类型的参考信号,例如探测参考信号(SRS)和物理上行链路控制信道(PUCCH)符号。 UE接收(402)参考信号序列组号u的指示,其中物理上行链路控制信道(PUCCH)序列被分成具有每个至少一个序列的组,并且其中探测参考信号(SRS)序列被划分为具有 每个至少一个序列。 当SRS要被发送时,UE从具有序列组号u的SRS序列组产生(414)序列,并且当PUCCH符号为(PUCCH))时,从具有序列组号u的PUCCH序列组生成(412)序列 被传送。 UE使用所产生的序列产生(416)传输信号。
    • 4. 发明申请
    • RESTRICTED CYCLIC SHIFT CONFIGURATION FOR RANDOM ACCESS PREAMBLES IN WIRELESS NETWORKS
    • 无线网络中随机访问前缀的限制性循环移位配置
    • WO2009039224A1
    • 2009-03-26
    • PCT/US2008/076746
    • 2008-09-18
    • TEXAS INSTRUMENTS INCORPORATEDJIANG, JingBERTRAND, PierreMUHAREMOVIC, Tarik
    • JIANG, JingBERTRAND, PierreMUHAREMOVIC, Tarik
    • H04B7/26
    • H04J13/0062H04J11/00H04J13/22H04L5/0007
    • Transmission of random access preamble structures within a cellular wireless network is based on the use of cyclic shifted constant amplitude zero autocorrelation ("CAZAC") sequences to generate the random access preamble signal. A pre-defined set of sequences is arranged in a specific order. Within the predefined set of sequences is an ordered group of sequences that is a proper subset of the pre-defined set of sequences. Within a given cell, up to 64 sequences may need to be signaled. In order to minimize the associated overhead due to signaling multiple sequences, only one logical index is transmitted by a base station serving the cell and a user equipment within the cell derives the subsequent indexes according to the pre-defined ordering. Each sequence has a unique logical index. The ordering of sequences is identified by the logical indexes of the sequences, with each logical index uniquely mapped to a generating index. When a UE needs to transmit, it produces (1410) a second sequence using the received indication of the logical index of the first sequence and an auxiliary value and then produces a transmission signal by modulating the second sequence. The auxiliary value is selected (1408) from one of two sets based on a set indicator broadcast (1404) by the eNB.
    • 蜂窝无线网络内的随机接入前同步码结构的传输是基于使用循环移位恒幅零自相关(“CAZAC”)序列来生成随机接入前同步信号的。 按照特定顺序排列预定义的序列集合。 在预定义的序列集合内,是序列的有序组,其是预定义序列集合的适当子集。 在给定的小区内,可能需要发信号通知多达64个序列。 为了最小化由于信令多个序列引起的相关开销,仅由服务于小区的基站发送一个逻辑索引,并且小区内的用户设备根据预定义的顺序导出后续索引。 每个序列都有唯一的逻辑索引。 序列的顺序由序列的逻辑索引识别,每个逻辑索引唯一映射到生成索引。 当UE需要发送时,它使用接收到的第一序列的逻辑索引指示和辅助值产生(1410)第二序列,然后通过调制第二序列来产生传输信号。 基于eNB设置的指示符广播(1404),从两组之一中选择辅助值(1408)。
    • 8. 发明申请
    • RANDOM ACCESS STRUCTURE FOR WIRELESS NETWORKS
    • 无线网络的随机访问结构
    • WO2007126793A3
    • 2008-01-03
    • PCT/US2007007535
    • 2007-03-27
    • TEXAS INSTRUMENTS INCBERTRAND PIERREJIANG JINGKANGUDE SHANTANUMUHAREMOVIC TARIK
    • BERTRAND PIERREJIANG JINGKANGUDE SHANTANUMUHAREMOVIC TARIK
    • H04L27/26
    • H04L27/2613H04L25/022
    • Apparatus and methods for accessing a wireless telecommunications network by transmitting a random access signal. The random access signal includes a random access preamble signal selected from a set of random access preamble signals constructed by cyclically shift selected root CAZAC sequences. The random access signal may be one or more transmission sub-frames in duration, the included random access preamble sequence's length being extended with the signal to provide improved signal detection performance in larger cells and in higher interference environments. The random access signal may include a wide-band pilot signal facilitating base station estimation of up-link frequency response in some situations. Each of the plurality of available random access preamble sequences may be assigned a unique information value. The base station may use the information encoded in the random access preamble to prioritize responses and resource allocations. Random access signal collisions are dealt with by a combination of preamble code space randomness and back-off procedures.
    • 通过发送随机接入信号来接入无线电信网络的装置和方法。 随机接入信号包括从由循环移位选择的根CAZAC序列构成的一组随机接入前同步信号中选择的随机接入前导信号。 随机接入信号可以是持续时间中的一个或多个传输子帧,所包含的随机接入前同步码序列的长度随信号扩展,以在较大的小区和较高的干扰环境中提供改善的信号检测性能。 随机接入信号可以包括宽带导频信号,有助于在某些情况下基站估计上行链路频率响应。 可以为多个可用随机接入前导码序列中的每一个分配唯一的信息值。 基站可以使用在随机接入前导码中编码的信息优先处理响应和资源分配。 随机接入信号冲突由前导码空间随机性和退避程序的组合来处理。
    • 9. 发明申请
    • RANDOM ACCESS STRUCTURE FOR WIRELESS NETWORKS
    • 无线网络随机访问结构
    • WO2007126793A2
    • 2007-11-08
    • PCT/US2007/007535
    • 2007-03-27
    • TEXAS INSTRUMENTS INCORPORATEDBERTRAND, PierreJIANG, JingKANGUDE, ShantanuMUHAREMOVIC, Tarik
    • BERTRAND, PierreJIANG, JingKANGUDE, ShantanuMUHAREMOVIC, Tarik
    • H04L27/26
    • H04L27/2613H04L25/022
    • Apparatus and methods for accessing a wireless telecommunications network by transmitting a random access signal. The random access signal includes a random access preamble signal selected from a set of random access preamble signals constructed by cyclically shift selected root CAZAC sequences. The random access signal may be one or more transmission sub-frames in duration, the included random access preamble sequence's length being extended with the signal to provide improved signal detection performance in larger cells and in higher interference environments. The random access signal may include a wide-band pilot signal facilitating base station estimation of up-link frequency response in some situations. Each of the plurality of available random access preamble sequences may be assigned a unique information value. The base station may use the information encoded in the random access preamble to prioritize responses and resource allocations. Random access signal collisions are dealt with by a combination of preamble code space randomness and back-off procedures.
    • 通过发送随机接入信号来接入无线电信网络的装置和方法。 随机接入信号包括从循环移位选择的根CAZAC序列构成的一组随机接入前导码信号中选择的随机接入前导码信号。 随机接入信号可以是持续时间中的一个或多个传输子帧,所包含的随机接入前同步码序列的长度随信号扩展,以在更大的小区和更高的干扰环境中提供改进的信号检测性能。 随机接入信号可以包括宽带导频信号,有助于在某些情况下基站估计上行链路频率响应。 多个可用随机接入前同步码序列中的每一个可被分配唯一的信息值。 基站可以使用在随机接入前导码中编码的信息对响应和资源分配进行优先级排序。 随机接入信号冲突由前导码空间随机性和退避程序的组合来处理。
    • 10. 发明申请
    • ALLOCATION OF BLOCK SPREADING SEQUENCES
    • 块扩展序列的分配
    • WO2008151228A2
    • 2008-12-11
    • PCT/US2008065753
    • 2008-06-04
    • TEXAS INSTRUMENTS INCSHEN ZUKANGMUHAREMOVIC TARIKBERTRAND PIERRE
    • SHEN ZUKANGMUHAREMOVIC TARIKBERTRAND PIERRE
    • H04J11/00H04W72/04
    • H04W72/0406
    • A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network (100) is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity (112) users, the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.
    • 信息从次级到主节点的传输发生在多个N个逻辑时间段内。 使用第一和第二序列获得在无线网络(100)中从次级到主节点的传输。 本发明的实施例通过限制第一序列的选择来减轻干扰。 因此,在本发明的实施例中,第一序列选自M个严格小于N的M个序列集合。为了适应高速(112)用户,受限集合包含一对序列,其元素 逐次产品是镜像对称的。 从第一序列的整个第二序列和第K个元素获得用于第K个逻辑持续时间的传输分量。