Downlink interference cancellation methods
    41.
    发明授权
    Downlink interference cancellation methods 有权
    下行干扰消除方法

    公开(公告)号:US08867999B2

    公开(公告)日:2014-10-21

    申请号:US12437362

    申请日:2009-05-07

    IPC分类号: H04B1/00

    CPC分类号: H04W72/082 H04W48/08

    摘要: A method to mitigate interference in a wireless system is provided. The method includes processing a set of radio network identifiers and limiting a number of hypotheses associated with the radio network identifiers in order to mitigate interference in a wireless network. In another aspect, the method includes processing a set of hypotheses and limiting the set of hypotheses by limiting a number of downlink grants to a common space, limiting the number of downlink grants to a number of instances, or limiting the number of grants to a physical downlink control channel (PDCCH) type. In yet another aspect, the method includes processing a downlink set and generating a target termination level for the downlink data set, the termination level associated with a Hybrid automatic repeat-request.

    摘要翻译: 提供了一种减轻无线系统干扰的方法。 该方法包括处理一组无线电网络标识符并限制与无线电网络标识符相关联的假设数量,以便减轻无线网络中的干扰。 在另一方面,该方法包括处理一组假设并通过将下行链路授权的数量限制到公共空间来限制假设集合,将下行链路授权的数量限制到多个实例,或将授权数量限制为 物理下行链路控制信道(PDCCH)类型。 在另一方面,该方法包括处理下行链路集合并为下行链路数据集生成与混合自动重传请求相关联的终止级别的目标终止级别。

    Rank step-down for MIMO SCW design employing HARQ
    42.
    发明授权
    Rank step-down for MIMO SCW design employing HARQ 有权
    采用HARQ的MIMO SCW设计的等级降级

    公开(公告)号:US08842693B2

    公开(公告)日:2014-09-23

    申请号:US11441742

    申请日:2006-05-25

    IPC分类号: H04J3/22 H04J13/00

    摘要: Systems and methodologies are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions there from increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.

    摘要翻译: 描述的系统和方法被简化为有助于减少等级(例如,用户设备),因为其中的传输数量增加。 这种排序降低可以改善抗干扰性,并且有助于保持代码率,尽管传输传播。 此外,等级降级信息可以与CQI信息一起编码,以产生可以有助于在每次CQI传输(例如,大约每5ms)更新用户的等级的5比特CQI信号。 所描述的系统和/或方法可以用于具有混合自动请求(HARQ)协议的单个码字(SCW)无线通信环境中。

    Beacon-based control channels
    43.
    发明授权
    Beacon-based control channels 有权
    基于信标的控制通道

    公开(公告)号:US08798665B2

    公开(公告)日:2014-08-05

    申请号:US12163812

    申请日:2008-06-27

    IPC分类号: H04W48/12

    摘要: Systems and methodologies are described that facilitate transmitting control information in wireless networks. Portions of bandwidth can be blanked for transmitting control information, and the control information transmitters can utilize beacon symbols to convey the control information. In this regard, interference is mitigated with respect to data transmissions over the control information bandwidth. Selected frequencies of the beacon symbols in a codeword can be used to indicate the control information. The codewords can be encoded with an error control code to provide redundancy for decoding in the presence of some interference.

    摘要翻译: 描述了有助于在无线网络中发送控制信息的系统和方法。 可以将部分带宽消隐以发送控制信息,并且控制信息发射机可以利用信标符号来传达控制信息。 在这方面,相对于控制信息带宽上的数据传输,减轻了干扰。 可以使用码字中的信标符号的选定频率来指示控制信息。 可以用错误控制码对码字进行编码,以在存在一些干扰的情况下提供用于解码的冗余。

    Quick paging channel with reduced probability of missed page
    44.
    发明授权
    Quick paging channel with reduced probability of missed page 有权
    快速寻呼信道丢失页面的概率降低

    公开(公告)号:US08750908B2

    公开(公告)日:2014-06-10

    申请号:US11455071

    申请日:2006-06-15

    IPC分类号: H04W68/00

    CPC分类号: H04W68/00

    摘要: A quick paging channel in a random access wireless communication system includes at least one bit in a quick paging frame identifying the presence of a paging message for an access terminal or group of access terminals. The quick paging bits identifying the presence of a paging message for a first access terminal is encoded with one or more quick paging bits corresponding to one or more additional access terminals to produce one or more forward error correction bits. The jointly encoded quick paging bits are broadcast to the access terminals by time division multiplexing the quick paging frame with additional frames of information.

    摘要翻译: 随机接入无线通信系统中的快速寻呼信道包括快速寻呼帧中的至少一个比特,标识接入终端或一组接入终端的寻呼消息的存在。 标识用于第一接入终端的寻呼消息的快速寻呼比特用一个或多个对应于一个或多个附加接入终端的快速寻呼位进行编码,以产生一个或多个前向纠错比特。 共同编码的快速寻呼比特通过用快速寻呼帧与附加信息帧进行时分复用来广播到接入终端。

    Transmission power management for a moblie device supporting simultaneous transmission on multiple air interfaces
    46.
    发明授权
    Transmission power management for a moblie device supporting simultaneous transmission on multiple air interfaces 有权
    用于支持在多个空中接口上同时传输的移动设备的传输功率管理

    公开(公告)号:US08731595B2

    公开(公告)日:2014-05-20

    申请号:US12774579

    申请日:2010-05-05

    IPC分类号: H04B7/005

    CPC分类号: H04W52/367 H04W52/365

    摘要: Systems and methods for transmission power management for a mobile device supporting simultaneous transmission on multiple air interfaces are disclosed. In one embodiment, the method comprises determining a transmission power level for each air interface, comparing the transmission power levels to a threshold power level, and adjusting at least one of the transmission power levels based on said comparison.

    摘要翻译: 公开了用于在多个空中接口上支持同时传输的移动设备的发射功率管理的系统和方法。 在一个实施例中,该方法包括确定每个空中接口的发射功率电平,将发射功率电平与阈值功率电平进行比较,以及基于所述比较来调整至少一个发射功率电平。

    Power control utilizing multiple rate interference indications
    47.
    发明授权
    Power control utilizing multiple rate interference indications 有权
    利用多速率干扰指示的功率控制

    公开(公告)号:US08700082B2

    公开(公告)日:2014-04-15

    申请号:US11620030

    申请日:2007-01-04

    IPC分类号: H04W52/04

    摘要: Systems and methodologies are described that facilitate mitigation of interference in a wireless communication environment. Terminals can utilize interference information provided by neighboring sectors to adjust transmit power and reduce interference. Access points can provide two sets or types of interference information. The first type can be transmitted over a large coverage area, requiring significant overhead and limiting the transmission rate. Access points can also provide a second set or type of interference information directed at smaller coverage area, such as an area proximate to the edge of the supported sector. This second type of interference information can be utilized by terminals that include the access point within their active set. The second set of interference information can be provided at a higher rate than the first set due to decreased overhead requirements. Terminals can utilize both sets of interference information to adjust transmit power.

    摘要翻译: 描述了有助于减轻无线通信环境中的干扰的系统和方法。 终端可以利用相邻扇区提供的干扰信息来调整发射功率并减少干扰。 接入点可以提供两组或多种干扰信息。 第一种类型可以在大的覆盖区域上传输,需要大量开销并限制传输速率。 接入点还可以提供针对较小覆盖区域的第二组或干扰类型,例如靠近所支持扇区边缘的区域。 这种第二类型的干扰信息可以由包括其活动集中的接入点的终端利用。 由于降低的开销要求,可以以比第一组更高的速率提供第二组干扰信息。 终端可以利用两组干扰信息来调整发射功率。

    Wireless communication system with improved broadcast coverage
    48.
    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
    49.
    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
    50.
    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。