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    • 2. 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。
    • 3. 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。
    • 6. 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 OPTIMAL CELL COVERAGE
    • 随机接入结构为最佳的小区覆盖
    • WO2008052032A3
    • 2008-07-17
    • PCT/US2007082345
    • 2007-10-24
    • TEXAS INSTRUMENTS INCBERTRAND PIERREDABAK ANANDJIANG JING
    • BERTRAND PIERREDABAK ANANDJIANG JING
    • H04W74/08
    • H04W74/0866H04J3/0682H04L27/2607
    • Apparatus and method for accessing a wireless telecommunications network by transmitting a random access signal (300). The random access signal includes a cyclic prefix signal (302) and a guard interval (306). The cyclic prefix signal and the guard interval are adapted to optimize random access channel coverage in a telecommunications cell. The disclosed method for transmitting a random access signal includes transmitting a cyclic prefix signal. The duration of the cyclic prefix signal is approximately the sum of a maximum round trip delay duration of the telecommunications cell and a maximum delay spread duration. The method further includes providing a guard interval. The guard interval duration being approximately the duration of the maximum round trip delay of the telecommunications cell.
    • 通过发送随机访问信号来访问无线电信网络的设备和方法(300)。 随机接入信号包括循环前缀信号(302)和保护间隔(306)。 循环前缀信号和保护间隔适合于优化电信小区中的随机接入信道覆盖。 所公开的用于发送随机接入信号的方法包括发送循环前缀信号。 循环前缀信号的持续时间大约是电信小区的最大往返延迟持续时间和最大延迟扩展持续时间的和。 该方法还包括提供保护间隔。 保护间隔持续时间大约是电信小区的最大往返延迟的持续时间。