Beacon-based control channels
    1.
    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。

    BEACON-BASED CONTROL CHANNELS
    2.
    发明申请
    BEACON-BASED CONTROL CHANNELS 有权
    基于BEACON的控制通道

    公开(公告)号:US20090131061A1

    公开(公告)日:2009-05-21

    申请号:US12163812

    申请日:2008-06-27

    IPC分类号: H04Q7/20 H04M1/00

    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。

    Random reuse based control channels
    3.
    发明授权
    Random reuse based control channels 有权
    基于随机重用的控制通道

    公开(公告)号:US08761032B2

    公开(公告)日:2014-06-24

    申请号:US12163818

    申请日:2008-06-27

    IPC分类号: H04L12/26 H04W24/02 H04L1/00

    摘要: Systems and methodologies are described that facilitate wireless network transmitters blanking or reducing power on portions of bandwidth reserved for control information transmission. This mitigates interference from disparate transmitters. Furthermore, the control information portion can be divided into a plurality of OFDM tiles that are reusable by transmitters for transmitting the control information. In this regard, interference between transmitters is additionally mitigated as the transmitters can multiplex the control information over a plurality of tiles increasing the chance that at least a portion of the tiles are not interfered. The control information can be decoded by the receivers from the portion of tiles with a low probability of interference.

    摘要翻译: 描述了系统和方法,其促进无线网络发射机消隐或减少为控制信息传输预留的带宽部分上的功率。 这减轻了不同发射机的干扰。 此外,控制信息部分可以被划分为多个OFDM瓦片,其可由用于发送控制信息的发射机重用。 在这方面,发射机之间的干扰额外减轻,因为发射机可以在多个瓦片上复用控制信息,从而增加至少一部分瓦片不被干扰的机会。 控制信息可以由来自具有低干扰概率的瓦片部分的接收器解码。

    RANDOM REUSE BASED CONTROL CHANNELS
    4.
    发明申请
    RANDOM REUSE BASED CONTROL CHANNELS 有权
    随机重用控制通道

    公开(公告)号:US20090129268A1

    公开(公告)日:2009-05-21

    申请号:US12163818

    申请日:2008-06-27

    IPC分类号: H04J11/00

    摘要: Systems and methodologies are described that facilitate wireless network transmitters blanking or reducing power on portions of bandwidth reserved for control information transmission. This mitigates interference from disparate transmitters. Furthermore, the control information portion can be divided into a plurality of OFDM tiles that are reusable by transmitters for transmitting the control information. In this regard, interference between transmitters is additionally mitigated as the transmitters can multiplex the control information over a plurality of tiles increasing the chance that at least a portion of the tiles are not interfered. The control information can be decoded by the receivers from the portion of tiles with a low probability of interference.

    摘要翻译: 描述了系统和方法,其促进无线网络发射机消隐或减少为控制信息传输预留的带宽部分上的功率。 这减轻了不同发射机的干扰。 此外,控制信息部分可以被划分为多个OFDM瓦片,其可由用于发送控制信息的发射机重用。 在这方面,发射机之间的干扰额外减轻,因为发射机可以在多个瓦片上复用控制信息,从而增加至少一部分瓦片不被干扰的机会。 控制信息可以由来自具有低干扰概率的瓦片部分的接收器解码。

    Preamble design for a wireless signal
    5.
    发明授权
    Preamble design for a wireless signal 有权
    无线信号的前缀设计

    公开(公告)号:US08918112B2

    公开(公告)日:2014-12-23

    申请号:US12260861

    申请日:2008-10-29

    摘要: Providing for management of wireless communications in a heterogeneous wireless access point (AP) environment is described herein. By way of example, system data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management disclosed herein, efficient and reliable communication can be affected in large heterogeneous AP networks.

    摘要翻译: 本文描述了在异构无线接入点(AP)环境中的无线通信的管理。 作为示例,空中消息的系统数据可以被配置为包括标识不同类型的发送基站的信息。 在一些方面,信息可以包括基站的接入类型和/或用于区分大量其他基站中的基站的扇区ID。 根据其他方面,信息可以包括为特定类型的基站指定的无线信道资源,或者由发射基站消隐,以便于对这些资源进行干扰减少。 通过采用这里公开的无线通信管理的方面,可以在大型异构AP网络中影响高效可靠的通信。

    Short-term interference mitigation in a wireless communication system
    6.
    发明授权
    Short-term interference mitigation in a wireless communication system 有权
    无线通信系统中的短期干扰减轻

    公开(公告)号:US08825046B2

    公开(公告)日:2014-09-02

    申请号:US12261998

    申请日:2008-10-30

    IPC分类号: H04W4/00 H04B7/00

    摘要: Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal.

    摘要翻译: 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中,服务基站可以向终端发送消息以触发短期干扰减轻。 作为响应,终端可以发送消息以请求至少一个干扰基站以减少对至少一个资源的干扰。 每个干扰基站可以确定要用于至少一个资源的发射功率电平,并且可以以该发射功率电平发送导频。 终端可以基于从至少一个干扰基站接收的至少一个导频来估计至少一个资源的信道质量。 终端可以向服务基站发送表示估计的信道质量的信息。 服务基站可以向终端发送至少一个资源上的数据传输。

    Method and apparatus for supporting half-duplex terminals in an asynchronous mode
    7.
    发明授权
    Method and apparatus for supporting half-duplex terminals in an asynchronous mode 有权
    用于以异步模式支持半双工终端的方法和装置

    公开(公告)号:US08396013B2

    公开(公告)日:2013-03-12

    申请号:US11848842

    申请日:2007-09-06

    IPC分类号: H04B1/56

    CPC分类号: H04B7/2656

    摘要: Systems and methodologies are described that provide support for signal acquisition in wireless communication systems that utilize half-duplex communication in the presence of asynchronous sectors. Forward link and reverse link superframes can be structured such that a given frame position in a superframe alternates between forward link communication and reverse link communication for a particular half-duplex interlace. More particularly, an odd number of frames can be grouped into respective forward link and reverse link superframes, from which frames can be assigned to a first half-duplex interlace and a second half-duplex interlace in an alternating fashion. By varying the communication link used by a half-duplex interlace at a given frame location, terminals operating on a single half-duplex interlace can detect asynchronously operating sectors irrespective of the transmission timeline of such sectors.

    摘要翻译: 描述了在存在异步扇区的情况下利用半双工通信的无线通信系统中的信号获取的支持的系统和方法。 可以构造前向链路和反向链路超帧,使得超帧中的给定帧位置在特定半双工交错的前向链路通信和反向链路通信之间交替。 更具体地,奇数帧可以被分组成相应的前向链路和反向链路超帧,从该帧可以以交替的方式将帧分配给第一半双工交错和第二半双工交错。 通过改变在给定帧位置处的半双工交错使用的通信链路,在单个半双工交错上操作的终端可以检测异步操作扇区,而与这些扇区的传输时间线无关。

    Resource allocation and mapping in a wireless communication system
    8.
    发明授权
    Resource allocation and mapping in a wireless communication system 有权
    无线通信系统中的资源分配和映射

    公开(公告)号:US08305999B2

    公开(公告)日:2012-11-06

    申请号:US11969200

    申请日:2008-01-03

    IPC分类号: H04B7/216

    摘要: Techniques for allocating and mapping resources in a wireless communication system are described. The system may use hop-ports to facilitate allocation and use of subcarriers. In one aspect, the hop-ports may be partitioned into multiple subzones, with each subzone including a configurable number of hop-ports. The hop-ports within each subzone may be permuted or shuffled based on a permutation function. After permutation, the hop-ports in all subzones may be mapped to the subcarriers based on local or global hopping. In another aspect, a set of hop-ports may be mapped to a set of subcarriers. A hop-port may be mapped to an unavailable subcarrier and may then be remapped to another available subcarrier. In yet another aspect, a set of hop-ports may be mapped to a set of subcarriers distributed (e.g., evenly) across all subcarriers but avoiding subcarriers in a reserved zone.

    摘要翻译: 描述了用于在无线通信系统中分配和映射资源的技术。 系统可以使用跳转端口来促进子载波的分配和使用。 在一个方面,跳跃端口可以被划分成多个子区域,每个子区域包括可配置数量的跳接口。 基于置换功能,每个子区域内的跳转口可以被排列或混洗。 在排列之后,所有子区域中的跳跃端口可以基于本地或全局跳频映射到子载波。 在另一方面,一组跳跃端口可以映射到一组子载波。 跳跃端口可以被映射到不可用的子载波,然后可以重新映射到另一个可用的子载波。 在另一方面,一组跳跃端口可以被映射到跨所有子载波分布(例如,均匀)但是避开保留区域中的子载波的一组子载波。

    FEC CODE AND CODE RATE SELECTION BASED ON PACKET SIZE
    9.
    发明申请
    FEC CODE AND CODE RATE SELECTION BASED ON PACKET SIZE 有权
    基于分组大小的FEC码和码率选择

    公开(公告)号:US20080168332A1

    公开(公告)日:2008-07-10

    申请号:US11943172

    申请日:2007-11-20

    IPC分类号: H03M13/05 G06F11/10

    摘要: Techniques for encoding and decoding data are described. In an aspect, multiple code rates for a forward error correction (FEC) code may be supported, and a suitable code rate may be selected based on packet size. A transmitter may obtain at least one threshold to use for code rate selection, determine a packet size to use for data transmission, and select a code rate from among the multiple code rates based on the packet size and the at least one threshold. In another aspect, multiple FEC codes of different types (e.g., Turbo, LDPC, and convolutional codes) may be supported, and a suitable FEC code may be selected based on packet size. The transmitter may obtain at least one threshold to use for FEC code selection and may select an FEC code from among the multiple FEC codes based on the packet size and the at least one threshold.

    摘要翻译: 描述用于编码和解码数据的技术。 在一方面,可以支持用于前向纠错(FEC)码的多个码率,并且可以基于分组大小来选择合适的码率。 发射机可以获得用于码率选择的至少一个阈值,确定用于数据传输的分组大小,并且基于分组大小和至少一个阈值从多个码率中选择码率。 在另一方面,可以支持不同类型的多个FEC码(例如,Turbo,LDPC和卷积码),并且可以基于分组大小来选择合适的FEC码。 发射机可以获得用于FEC码选择的至少一个阈值,并且可以基于分组大小和至少一个阈值从多个FEC码中选择FEC码。

    METHODS AND APPARATUS FOR MEASURING, COMMUNICATING AND/OR USING INTERFERENCE INFORMATION
    10.
    发明申请
    METHODS AND APPARATUS FOR MEASURING, COMMUNICATING AND/OR USING INTERFERENCE INFORMATION 有权
    用于测量,通信和/或使用干扰信息的方法和装置

    公开(公告)号:US20080043879A1

    公开(公告)日:2008-02-21

    申请号:US11766353

    申请日:2007-06-21

    IPC分类号: H04L25/03

    摘要: Wireless communications methods and apparatus are described. A communications apparatus, e.g., a base station, measures interference information, e.g., other sector interference information. The communications apparatus generates a preamble which includes a plurality of pilot symbols and at least one of the pilot symbols includes interference information. In some embodiments, the preamble is part of a superframe structure, e.g., a recurring superframe structure, including the preamble and a plurality of frames, at least some of the frames used to convey traffic data. The communications apparatus transmits the preamble, thus broadcasting the interference information to access terminals in the vicinity. An access terminal receives the preamble including a plurality of pilot signals, at least one of the pilot signals including interference information. The access terminal recovers the interference information from the received preamble and controls signal transmission based on the recovered interference information.

    摘要翻译: 描述了无线通信方法和装置。 通信装置,例如基站,测量干扰信息,例如其他扇区干扰信息。 通信装置生成包括多个导频符号的前导码,并且导频符号中的至少一个包括干扰信息。 在一些实施例中,前导码是超帧结构的一部分,例如,包括前导码和多个帧的循环超帧结构,用于传送业务数据的至少一些帧。 通信装置发送前导码,从而将干扰信息广播到附近的接入终端。 接入终端接收包括多个导频信号的前导码,所述导频信号中的至少一个包括干扰信息。 接入终端从接收到的前导码中恢复干扰信息,并根据恢复的干扰信息控制信号传输。