Wireless communication system with improved broadcast coverage
    41.
    发明授权
    Wireless communication system with improved broadcast coverage 有权
    无线通信系统具有改进的广播覆盖

    公开(公告)号:US08687617B2

    公开(公告)日:2014-04-01

    申请号:US12480928

    申请日:2009-06-09

    IPC分类号: H04B7/208

    摘要: Techniques to transmit data with cyclic delay diversity and pilot staggering are described. For cyclic delay diversity, OFDM symbols having different cyclic delay durations are generated. The cyclic delay durations for the OFDM symbols may be selected to be time varying with respect to the cyclic delay durations for OFDM symbols transmitted by a neighboring base station. An FDM pilot is generated and multiplexed on multiple sets of subbands in different symbol periods. Waveforms for a second radio technology (e.g., W-CDMA) may be generated for data to be transmitted with this radio technology. The OFDM symbols are multiplexed onto time slots used for OFDM, and the waveforms for the second radio technology are multiplexed onto time slots used for this radio technology. One or multiple modulated signals may be generated based on the multiplexed OFDM symbols and waveforms. Each modulated signal is transmitted from a respective antenna.

    摘要翻译: 描述了使用循环延迟分集和飞行员交错传输数据的技术。 对于循环延迟分集,生成具有不同循环延迟持续时间的OFDM符号。 OFDM符号的循环延迟持续时间可以被选择为相对于由相邻基站发送的OFDM符号的循环延迟持续时间而变化的时间。 在不同符号周期的多组子带上生成和复用FDM导频。 可以生成用于第二无线电技术(例如,W-CDMA)的波形,用于使用该无线电技术发送的数据。 OFDM符号被复用到用于OFDM的时隙上,并且用于第二无线电技术的波形被复用到用于该无线电技术的时隙上。 可以基于多路复用的OFDM符号和波形来生成一个或多个调制信号。 每个调制信号从相应的天线发送。

    Apparatus and method for selective response to incremental redundancy transmissions
    42.
    发明授权
    Apparatus and method for selective response to incremental redundancy transmissions 有权
    用于选择性地响应增量冗余传输的装置和方法

    公开(公告)号:US08661322B2

    公开(公告)日:2014-02-25

    申请号:US11020583

    申请日:2004-12-22

    IPC分类号: H03M13/00

    摘要: Method and apparatus for transmission of information in multiple access communication system is claim. Information using incremental redundancy is transmitted. A determination is made as to whether reverse link performance drops below a predetermined threshold. Determination of reverse link performance may be done in variety of ways, including use of a filter percentage of ACK erasures, measured error rates on the reverse link control channel, reverse link data channel error rates, and other methods. Upon determination of channel degradation, the access point can decide whether to ignore messages sent from the access terminal to instruct the access terminal to cease transmission.

    摘要翻译: 一种用于在多址通信系统中传输信息的方法和装置。 发送使用增量冗余的信息。 确定反向链路性能是否下降到预定阈值以下。 反向链路性能的确定可以以各种方式进行,包括使用ACK擦除的滤波器百分比,反向链路控制信道上的测量误码率,反向链路数据信道错误率等方法。 在确定信道劣化时,接入点可以决定是否忽略从接入终端发送的消息,指示接入终端停止发送。

    Incremental redundancy relays for broadcast transmission
    43.
    发明授权
    Incremental redundancy relays for broadcast transmission 有权
    用于广播传输的增量冗余中继

    公开(公告)号:US08638710B2

    公开(公告)日:2014-01-28

    申请号:US12262573

    申请日:2008-10-31

    摘要: Techniques for relaying a broadcast transmission in a wireless network are described. In one design, a relay may receive at least one transmission of a packet from a transmitter (e.g., a broadcast station) and may process the at least one transmission to decode the packet. The relay may generate at least one remaining transmission of the packet after correctly decoding the packet. The transmitter may broadcast multiple transmissions of the packet to receivers. The at least one transmission may be at least one of the multiple transmissions, and the at least one remaining transmission may be remaining ones of the multiple transmissions. The relay may send the at least one remaining transmission of the packet at the same time and on the same resources used by the transmitter. The multiple transmissions may be HARQ transmissions containing different redundancy information for the packet.

    摘要翻译: 描述了用于中继无线网络中的广播传输的技术。 在一种设计中,中继器可以从发射机(例如,广播站)接收分组的至少一个传输,并且可以处理该至少一个传输来解码分组。 在正确解码分组之后,中继可以产生分组的至少一个剩余传输。 发射机可以将广播分组的多个传输广播到接收机。 所述至少一个传输可以是多个传输中的至少一个,并且所述至少一个剩余传输可以是多个传输中的剩余传输。 中继器可以在发送器使用的相同资源的同一时间发送分组的至少一个剩余传输。 多个传输可以是包含用于分组的不同冗余信息的HARQ传输。

    Wireless communication system with improved broadcast coverage
    44.
    发明授权
    Wireless communication system with improved broadcast coverage 有权
    无线通信系统具有改进的广播覆盖

    公开(公告)号:US08588203B2

    公开(公告)日:2013-11-19

    申请号:US11144211

    申请日:2005-06-02

    IPC分类号: H04J3/18

    摘要: Techniques to transmit data with cyclic delay diversity and pilot staggering are described. For cyclic delay diversity, OFDM symbols having different cyclic delay durations are generated. The cyclic delay durations for the OFDM symbols may be selected to be time varying with respect to the cyclic delay durations for OFDM symbols transmitted by a neighboring base station. An FDM pilot is generated and multiplexed on multiple sets of subbands in different symbol periods. Waveforms for a second radio technology (e.g., W-CDMA) may be generated for data to be transmitted with this radio technology. The OFDM symbols are multiplexed onto time slots used for OFDM, and the waveforms for the second radio technology are multiplexed onto time slots used for this radio technology. One or multiple modulated signals may be generated based on the multiplexed OFDM symbols and waveforms. Each modulated signal is transmitted from a respective antenna.

    摘要翻译: 描述了使用循环延迟分集和飞行员交错传输数据的技术。 对于循环延迟分集,生成具有不同循环延迟持续时间的OFDM符号。 OFDM符号的循环延迟持续时间可以被选择为相对于由相邻基站发送的OFDM符号的循环延迟持续时间而变化的时间。 在不同符号周期的多组子带上生成和复用FDM导频。 可以生成用于第二无线电技术(例如,W-CDMA)的波形,用于使用该无线电技术发送的数据。 OFDM符号被复用到用于OFDM的时隙上,并且用于第二无线电技术的波形被复用到用于该无线电技术的时隙上。 可以基于多路复用的OFDM符号和波形来生成一个或多个调制信号。 每个调制信号从相应的天线发送。

    Wireless communication system with configurable cyclic prefix length
    45.
    发明授权
    Wireless communication system with configurable cyclic prefix length 有权
    具有可配置循环前缀长度的无线通信系统

    公开(公告)号:US08577299B2

    公开(公告)日:2013-11-05

    申请号:US11144181

    申请日:2005-06-02

    IPC分类号: H04B1/00

    摘要: To transmit data in a manner to mitigate the deleterious effects of delay spread, the expected coverage areas for multiple transmissions to be sent in multiple time slots are initially determined. Cyclic prefix lengths for these transmissions are selected based on the expected coverage areas. The cyclic prefix length for each transmission may be selected from among a set of allowed cyclic prefix lengths based on the expected coverage area for that transmission, the pilot staggering used for the transmission, and so on. For example, a shorter cyclic prefix length may be selected for each local transmission, and a longer cyclic prefix length may be selected for each wide-area transmission. The selected cyclic prefix lengths may be signaled to the terminals. The transmissions are processed (e.g., OFDM modulated) based on the selected cyclic prefix lengths. The cyclic prefix lengths may be selected periodically, e.g., in each super-frame.

    摘要翻译: 为了以减轻延迟扩展的有害影响的方式发送数据,首先确定要在多个时隙中发送的多个传输的预期覆盖区域。 基于预期的覆盖区域来选择这些传输的循环前缀长度。 可以根据该传输的预期覆盖区域,用于传输的导频交错等,从一组允许的循环前缀长度中选择每个传输的循环前缀长度,等等。 例如,可以为每个本地传输选择较短的循环前缀长度,并且可以为每个广域传输选择较长的循环前缀长度。 所选择的循环前缀长度可以被发送到终端。 基于所选择的循环前缀长度来处理(例如,OFDM调制)传输。 可以周期性地选择循环前缀长度,例如在每个超帧中。

    Low reuse preamble for a wireless communication network
    48.
    发明授权
    Low reuse preamble for a wireless communication network 有权
    用于无线通信网络的低重用前导码

    公开(公告)号:US08249029B2

    公开(公告)日:2012-08-21

    申请号:US12410358

    申请日:2009-03-24

    IPC分类号: H04B7/216

    摘要: Techniques for sending low reuse preambles in a wireless network are described. In an aspect, a base station may send a low reuse preamble on reserved frequency resources to allow terminals to detect the base station even in the presence of strong interfering base stations. The base station may generate the low reuse preamble to include a pilot portion and a data portion. The base station may determine frequency resources reserved for sending low reuse preambles by base stations. The base station may then send the low reuse preamble on the reserved frequency resources, e.g., at a pseudo-randomly selected time. A terminal may detect for low reuse preambles sent by the base stations on the reserved frequency resources. The terminal may recover information for a base station from a detected low reuse preamble.

    摘要翻译: 描述了在无线网络中发送低重用前导码的技术。 在一方面,基站可以在保留的频率资源上发送低重用前导码,以允许终端即使在存在强干扰基站的情况下来检测基站。 基站可以生成低重用前导码以包括导频部分和数据部分。 基站可以确定为基站发送低重用前导码而保留的频率资源。 然后,基站可以例如以伪随机选择的时间在保留的频率资源上发送低重用前导码。 终端可以检测基站在预留频率资源上发送的低重用前导码。 终端可以从检测到的低重用前导码恢复基站的信息。

    Method of using shared resources in a communication system
    49.
    发明授权
    Method of using shared resources in a communication system 有权
    在通信系统中使用共享资源的方法

    公开(公告)号:US08238923B2

    公开(公告)日:2012-08-07

    申请号:US11022143

    申请日:2004-12-22

    IPC分类号: H04W72/00

    摘要: An apparatus and method of delivering data in a wireless communication system, the apparatus and method comprising of determining, based on first criteria, if a shared channel can utilized to transmit an actual data packet; converting said actual data packet into one or more first data packets, wherein each said one or more first data packet represent a portion of said actual data packet; and transmitting each said one or more first data packet using said shared channel.

    摘要翻译: 一种在无线通信系统中传送数据的装置和方法,所述装置和方法包括:基于第一准则确定共享信道是否可以用于发送实际数据分组; 将所述实际数据分组转换成一个或多个第一数据分组,其中每个所述一个或多个第一数据分组表示所述实际数据分组的一部分; 以及使用所述共享信道发送每个所述一个或多个第一数据分组。

    Access point identifier configuration procedure
    50.
    发明授权
    Access point identifier configuration procedure 有权
    接入点标识符配置过程

    公开(公告)号:US08194560B2

    公开(公告)日:2012-06-05

    申请号:US12499438

    申请日:2009-07-08

    IPC分类号: G01R31/08

    CPC分类号: H04W8/26 H04W84/005

    摘要: In an access point identifier configuration scheme, different procedures are used for configuring (e.g., updating) different types of access points. For example, the criteria used to determine which identifiers are to be assigned to mobile access points may be different than the criteria used to determine which identifiers are to be assigned to stationary access points.

    摘要翻译: 在接入点标识符配置方案中,使用不同的过程来配置(例如,更新)不同类型的接入点。 例如,用于确定哪些标识符被分配给移动接入点的标准可以不同于用于确定哪些标识符被分配给固定接入点的标准。