Channel adaptation for multicarrier arrangement

    公开(公告)号:US09967068B2

    公开(公告)日:2018-05-08

    申请号:US12981997

    申请日:2010-12-30

    IPC分类号: H04L5/00 H04M11/06

    摘要: Implementations related to updating channel adaptation parameters are described. In one implementation, an R2T frame, such as an acknowledgment (ACK) frame, is modified to carry a partial bit allocation table (BAT). The R2T frame may be received by a transceiver apparatus and the partial BAT carried in the header or extended header(s) of R2T frame may be used to update a BAT stored in the transceiver. In another implementation, a message frame is modified to carry a partial BAT. The message frame may be received by a transceiver apparatus and the partial BAT used to update a BAT stored in the transceiver. A unique identification number generated by the receiving transceiver apparatus may be used to synchronize BATs stored in two communicating transceivers without necessity of exchanging additional control messages.

    Method and apparatus for variable header repetition in a wireless OFDM network with multiple overlapped frequency bands
    2.
    发明授权
    Method and apparatus for variable header repetition in a wireless OFDM network with multiple overlapped frequency bands 有权
    在具有多个重叠频带的无线OFDM网络中用于可变报头重复的方法和装置

    公开(公告)号:US09584262B2

    公开(公告)日:2017-02-28

    申请号:US13376856

    申请日:2010-08-20

    IPC分类号: H04B1/38 H04L1/08 H04L27/26

    摘要: Method and apparatus for use within a wireless OFDM network that transmits and receives first and second packets each having header bits and utilizing variable header repetition. The header bits in the first packet are communicated on multiple OFDM symbols and repeated on a plurality of OFDM subcarriers in a first frequency band. The header bits in a second packet are communicated on fewer OFDM symbols and in a second frequency band that overlaps with and is wider than the first frequency band.

    摘要翻译: 在无线OFDM网络内使用的方法和装置,其发送和接收每个具有报头比特并利用可变报头重复的第一和第二分组。 第一分组中的报头位在多个OFDM符号上传送,并在第一频带中的多个OFDM子载波上重复。 第二分组中的报头位在较少的OFDM符号和与第一频带重叠并且比第一频带宽的第二频带中通信。

    Packet detector
    3.
    发明授权
    Packet detector 有权
    包检测器

    公开(公告)号:US08718118B2

    公开(公告)日:2014-05-06

    申请号:US13376400

    申请日:2010-07-22

    IPC分类号: H04B1/00

    摘要: There are several exemplary ways to more efficiently communicate an out-of-domain seed to a receiver—in a first technique, the seed can be indicated in the header portion or data portion of a packet. For example, the header portion of the packet could contain one or more bit fields that indicate the value of the LFSR seed used for the preamble portion of the packet. The receiver would learn the out-of-domain seed after receiving a first out-of-domain packet and decoding the header portion of that packet. After learning the out-of-domain seed, the receiver could send a packet indicating the value of the out-of-domain seed to the local master. The local master could then transmit the value of the out-of-domain seed in the header portion or data portion of a local MAP frame.

    摘要翻译: 在第一技术中,有几种用于更有效地将域外种子传送到接收器的示例性方式,可以在分组的报头部分或数据部分中指示种子。 例如,分组的报头部分可以包含指示用于分组的前导码部分的LFSR种子的值的一个或多个比特字段。 接收器将在接收到第一个域外分组并解码该分组的报头部分之后学习域外种子。 在学习域外种子后,接收方可以向本地主机发送一个指示域外种子值的数据包。 然后,本地主机可以将局域外种子的值发送到本地MAP帧的报头部分或数据部分。

    Identification of packet traffic transmitted by various devices operated in multiple overlapped frequency bands in packet-based OFDM systems
    4.
    发明授权
    Identification of packet traffic transmitted by various devices operated in multiple overlapped frequency bands in packet-based OFDM systems 有权
    识别在基于分组的OFDM系统中在多个重叠频带中操作的各种设备发送的分组业务

    公开(公告)号:US08537796B2

    公开(公告)日:2013-09-17

    申请号:US12743876

    申请日:2009-08-25

    申请人: Joon Bae Kim

    发明人: Joon Bae Kim

    IPC分类号: H04W4/00

    摘要: Techniques for header encoding include encoding a plurality of bits using a forward error correction code, generating an FEC codeword comprising a plurality of encoded bits, and concatenating a first copy of the FEC codeword with a second copy of the FEC codeword, wherein the concatenating comprises cyclically shifting by two bits the second concatenated copy of the FEC codeword relative to the first concatenated copy of the FEC codeword, wherein the encoded bits of the first and second copies of the FEC codewords are modulated on at least one OFDM symbol. techniques for header decoding include receiving a plurality of encoded bits comprising at least two concatenated copies of an FEC codeword, decoding a first copy of the FEC codeword to generate a first plurality of decoded bits, and decoding a second copy of the FEC codeword to generate a second plurality of decoded bits.

    摘要翻译: 用于标题编码的技术包括使用前向纠错码对多个比特进行编码,生成包括多个编码比特的FEC码字,以及将FEC码字的第一副本与FEC码字的第二副本相连,其中,连接包括 相对于FEC码字的第一级联副本循环移位两比特FEC码字的第二级联副本,其中在至少一个OFDM符号上对FEC码字的第一和第二副本的编码比特进行调制。 用于报头解码的技术包括接收包括FEC码字的至少两个级联副本的多个编码比特,解码FEC码字的第一副本以产生第一多个解码比特,以及对FEC码字的第二副本进行解码以产生 第二多个解码比特。

    CHANNEL ADAPTATION FOR MULTICARRIER ARRANGEMENT
    5.
    发明申请
    CHANNEL ADAPTATION FOR MULTICARRIER ARRANGEMENT 有权
    多频道设备的通道适配

    公开(公告)号:US20110182254A1

    公开(公告)日:2011-07-28

    申请号:US12981997

    申请日:2010-12-30

    IPC分类号: H04W72/04

    摘要: Implementations related to updating channel adaptation parameters are described. In one implementation, an R2T frame, such as an acknowledgment (ACK) frame, is modified to carry a partial bit allocation table (BAT). The R2T frame may be received by a transceiver apparatus and the partial BAT carried in the header or extended header(s) of R2T frame may be used to update a BAT stored in the transceiver. In another implementation, a message frame is modified to carry a partial BAT. The message frame may be received by a transceiver apparatus and the partial BAT used to update a BAT stored in the transceiver. A unique identification number generated by the receiving transceiver apparatus may be used to synchronize BATs stored in two communicating transceivers without necessity of exchanging additional control messages.

    摘要翻译: 描述与更新信道自适应参数相关的实现。 在一个实现中,诸如确认(ACK)帧的R2T帧被修改为携带部分位分配表(BAT)。 R2T帧可以由收发器装置接收,并且在R2T帧的报头或扩展报头中携带的部分BAT可以用于更新存储在收发器中的BAT。 在另一实现中,消息帧被修改为携带部分BAT。 消息帧可以由收发器装置和用于更新存储在收发器中的BAT的部分BAT接收。 由接收收发器装置生成的唯一标识号码可用于同步存储在两个通信收发器中的BAT,而不需要交换额外的控制消息。

    PAYLOAD FOR MULTI-INPUT MULTI-OUTPUT
    7.
    发明申请
    PAYLOAD FOR MULTI-INPUT MULTI-OUTPUT 有权
    多输入多输出PAYLOAD

    公开(公告)号:US20130094517A1

    公开(公告)日:2013-04-18

    申请号:US13439072

    申请日:2012-04-04

    IPC分类号: H04L29/02

    摘要: Described herein are implementations related to data communication using a frame that includes at least two data packets. In one implementation, a first of the data packets includes at least a payload with repeated payload portions to increase diversity gain. A second of the data packets includes at least a payload with repeated payload portions to increase diversity gain. The repeated payload portions of the second data packet are shuffled or rotated in relation to the repeated data payload portions of the first data packet. In one implementation, the frame is conveyed in a Power Line Communication (PLC) system.

    摘要翻译: 这里描述了与使用包括至少两个数据分组的帧的数据通信有关的实现。 在一个实现中,第一数据分组至少包括具有重复的有效载荷部分的有效载荷以增加分集增益。 数据分组中的第二数据包至少包含具有重复的有效载荷部分以增加分集增益的有效载荷。 第二数据分组的重复的有效载荷部分相对于第一数据分组的重复数据有效载荷部分进行混洗或旋转。 在一个实现中,框架在电力线通信(PLC)系统中传送。

    Symbol Generation In Different Multicarrier Systems Operating In Overlapped Frequency Bandwidths
    8.
    发明申请
    Symbol Generation In Different Multicarrier Systems Operating In Overlapped Frequency Bandwidths 审中-公开
    不同多载波系统中的符号生成在重叠频带中运行

    公开(公告)号:US20130051484A1

    公开(公告)日:2013-02-28

    申请号:US13578644

    申请日:2011-02-15

    IPC分类号: H04L27/28

    摘要: At least one implementation herein enables at least two multicarrier apparatuses or nodes operating on overlapped frequency bands with different tone spacing to communicate. In particular, a first node may use a tone spacing that is less than the tone spacing used by a second node. The first and second nodes may communicate and are thus aligned when the second node transmits identical symbols over a time duration equal to a length of a symbol used by the first node.

    摘要翻译: 本文中至少一个实现使得能够在具有不同音调间隔的重叠频带上操作的至少两个多载波设备或节点进行通信。 特别地,第一节点可以使用小于由第二节点使用的音调间隔的音调间隔。 当第二节点在等于第一节点使用的符号的长度的持续时间内发送相同的符号时,第一和第二节点可以进行通信并且因此对齐。

    AUTOMATIC DEVICE PAIRING
    9.
    发明申请
    AUTOMATIC DEVICE PAIRING 有权
    自动装置配对

    公开(公告)号:US20120324554A1

    公开(公告)日:2012-12-20

    申请号:US13523005

    申请日:2012-06-14

    IPC分类号: G06F21/00 H04L9/00 H04L29/06

    摘要: One embodiment relates to a security apparatus. The apparatus includes a security controller. The security controller is within a secure domain. The controller is configured to receive a trigger event from a first device outside the secure domain and a second trigger event. The controller is configured to automatically generate a secure password from a provisional password using a secure password provisioning protocol in response to the first trigger event and the second trigger event. The controller is also configured to pair the first device with the secure domain by establishing secure communications using the secure password.

    摘要翻译: 一个实施例涉及一种安全装置。 该装置包括一个安全控制器。 安全控制器位于安全域内。 控制器被配置为从安全域外的第一设备接收触发事件和第二触发事件。 控制器被配置为响应于第一触发事件和第二触发事件,使用安全密码供应协议从临时密码自动生成安全密码。 控制器还被配置为通过使用安全密码建立安全通信来将第一设备与安全域进行配对。

    HEADER REPETITION IN PACKET-BASED OFDM SYSTEMS
    10.
    发明申请
    HEADER REPETITION IN PACKET-BASED OFDM SYSTEMS 有权
    基于分组的OFDM系统中的总线重复

    公开(公告)号:US20120170625A1

    公开(公告)日:2012-07-05

    申请号:US13376856

    申请日:2010-08-20

    IPC分类号: H04B1/38

    摘要: An OFDM communication system is described that allows different values of D in a single domain where nodes are operating in different portions of frequency bands. For the power-line medium, G.9960 has defined two over-lapped baseband bandplans, 50 MHz-PB and 100 MHz-PB. In this exemplary scenario, the level of frequency diversity is different depending on the bandplan, hence providing different header decodibility if D is fixed to 1. If D is fixed to 2, then it increases reliability for the narrow-band devices, but may also unnecessarily increase overhead for the wide-band devices. An exemplary aspect is therefore directed to techniques to accommodate different repetitions schemes (D=1, . . . , DMAX and H=I, . . . , HMAX) in a single domain, and still allow devices to communicate with one another where DMAX and HMAX can be larger than 2.

    摘要翻译: 描述了OFDM通信系统,其允许在节点在频带的不同部分中操作的单个域中的D的不同值。 对于电力线路媒体,G.9960已经定义了两个超重的基带频带计划,50 MHz-PB和100 MHz-PB。 在该示例性场景中,根据频带规划,频率分集​​的电平是不同的,因此如果D固定为1,则提供不同的报头解码。如果D固定为2,则增加窄带设备的可靠性,但也可以 不必要地增加宽带设备的开销。 因此,示例性方面涉及在单个域中适应不同重复方案(D = 1,...,DMAX和H = I,...,HMAX)的技术,并且仍允许设备彼此通信,其中DMAX HMAX可以大于2。