公开(公告)号：US09178732B2

公开(公告)日：2015-11-03

申请号：US12446728

申请日：2007-10-26

申请人： Thomas Richardson ,  Husheng Li ,  Junyi Li ,  Alexander Leonidov ,  Rajiv Laroia ,  Ravi Palanki ,  Gavin Horn ,  Ashwin Sampath

发明人： Thomas Richardson ,  Husheng Li ,  Junyi Li ,  Alexander Leonidov ,  Rajiv Laroia ,  Ravi Palanki ,  Gavin Horn ,  Ashwin Sampath

IPC分类号： H04W72/04 ,  H04J3/00 ,  H04L27/10 ,  H04L1/00 ,  H04L5/00

CPC分类号： H04L27/10 ,  H04L1/0045 ,  H04L5/0053 ,  H04L5/0091

摘要： Systems and methodologies are described that facilitate transmitting beacon symbols of a beacon message such that a sequence of symbols can satisfy a linear constraint over a field where the field elements can be identified with carriers. In this regard, a coding scheme can be applied to a beacon message; the coding scheme can produce a plurality of beacon symbols to transmit on given subcarriers. A receiving device of the beacon symbols can decode a beacon message by receiving less than the total number of symbols in a beacon message and determining the remaining symbol subcarriers based on the linear constraint. Thus, more efficient decoding of beacons is facilitated as well as resolving beacon ambiguity by figuring out which symbols satisfy linear constraints for the symbols, and resolving time and frequency shift by detecting an offset that would result in satisfaction of the linear constraint.

摘要翻译： 描述了促进发送信标消息的信标符号的系统和方法，使得符号序列可以满足可以用载波识别场元素的场的线性约束。 在这方面，编码方案可以应用于信标消息; 编码方案可以产生多个信标符号，以在给定子载波上进行传输。 信标符号的接收设备可以通过接收小于信标消息中的总符号数来解码信标消息，并且基于线性约束确定剩余的符号子载波。 因此，有助于信标的更有效的解码以及通过找出哪些符号满足符号的线性约束来解析信标模糊度，以及通过检测将导致满足线性约束的偏移来解决时间和频率偏移。

公开(公告)号：US20100142365A1

公开(公告)日：2010-06-10

申请号：US12446728

申请日：2007-10-26

申请人： Thomas Richardson ,  Husheng Li ,  Junyi Li ,  Alexandar Leonidov ,  Rajiv Laroia ,  Ravi Palanki ,  Gavin Horn ,  Ashwin Sampath

发明人： Thomas Richardson ,  Husheng Li ,  Junyi Li ,  Alexandar Leonidov ,  Rajiv Laroia ,  Ravi Palanki ,  Gavin Horn ,  Ashwin Sampath

IPC分类号： H04W72/04 ,  H04J3/00

CPC分类号： H04L27/10 ,  H04L1/0045 ,  H04L5/0053 ,  H04L5/0091

摘要： Systems and methodologies are described that facilitate transmitting beacon symbols of a beacon message such that a sequence of symbols can satisfy a linear constraint over a field where the field elements can be identified with carriers. In this regard, a coding scheme can be applied to a beacon message; the coding scheme can produce a plurality of beacon symbols to transmit on given subcarriers. A receiving device of the beacon symbols can decode a beacon message by receiving less than the total number of symbols in a beacon message and determining the remaining symbol subcarriers based on the linear constraint. Thus, more efficient decoding of beacons is facilitated as well as resolving beacon ambiguity by figuring out which symbols satisfy linear constraints for the symbols, and resolving time and frequency shift by detecting an offset that would result in satisfaction of the linear constraint.

摘要翻译： 描述了促进发送信标消息的信标符号的系统和方法，使得符号序列可以满足可以用载波识别场元素的场的线性约束。 在这方面，编码方案可以应用于信标消息; 编码方案可以产生多个信标符号，以在给定子载波上进行传输。 信标符号的接收设备可以通过接收小于信标消息中的总符号数来解码信标消息，并且基于线性约束确定剩余的符号子载波。 因此，有助于信标的更有效的解码以及通过找出哪些符号满足符号的线性约束来解析信标模糊度，以及通过检测将导致满足线性约束的偏移来解决时间和频率偏移。

公开(公告)号：US08391879B2

公开(公告)日：2013-03-05

申请号：US12267888

申请日：2008-11-10

申请人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

发明人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

IPC分类号： H04W72/00

CPC分类号： H04W72/1278 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0091 ,  H04L67/104 ,  H04W72/1226 ,  H04W84/18

摘要： Methods and apparatus well suited to decentralized traffic scheduling in wireless peer to peer network are described. An individual wireless terminal corresponding to a peer to peer connection makes a transmitter yielding or receiver yielding decision for a traffic slot. Quality of service information is disseminated as part of the scheduling control signaling. A scheduling control signal, e.g., a traffic transmission request signal or a traffic transmission request response signal, includes a pilot portion and a quality of service information portion. The pilot facilitates the recovery of the quality of service information by a plurality of different devices which may have different channel conditions with respect to the transmitter of the scheduling control signal. The different devices may benefit from utilizing the recovered quality of service information in making a yielding decision regarding traffic signaling in a traffic segment.

摘要翻译： 描述了非常适合无线对等网络中分散业务调度的方法和设备。 与对等连接相对应的单个无线终端为业务时隙做出发射机屈服或接收机容易判定。 服务质量信息作为调度控制信令的一部分传播。 诸如业务传输请求信号或业务传输请求响应信号的调度控制信号包括导频部分和服务质量信息部分。 导频有助于通过可能具有与调度控制信号的发射机不同的信道条件的多个不同设备来恢复业务质量信息。 不同的设备可以受益于利用恢复的服务质量信息作出关于业务段中的业务信令的收益决定。

公开(公告)号：US20100120372A1

公开(公告)日：2010-05-13

申请号：US12267888

申请日：2008-11-10

申请人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

发明人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

IPC分类号： H04B7/005

CPC分类号： H04W72/1278 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0091 ,  H04L67/104 ,  H04W72/1226 ,  H04W84/18

摘要： Methods and apparatus well suited to decentralized traffic scheduling in wireless peer to peer network are described. An individual wireless terminal corresponding to a peer to peer connection makes a transmitter yielding or receiver yielding decision for a traffic slot. Quality of service information is disseminated as part of the scheduling control signaling. A scheduling control signal, e.g., a traffic transmission request signal or a traffic transmission request response signal, includes a pilot portion and a quality of service information portion. The pilot facilitates the recovery of the quality of service information by a plurality of different devices which may have different channel conditions with respect to the transmitter of the scheduling control signal. The different devices may benefit from utilizing the recovered quality of service information in making a yielding decision regarding traffic signaling in a traffic segment.

摘要翻译： 描述了非常适合无线对等网络中分散业务调度的方法和设备。 与对等连接相对应的单个无线终端为业务时隙做出发射机屈服或接收机容易判定。 服务质量信息作为调度控制信令的一部分传播。 诸如业务传输请求信号或业务传输请求响应信号的调度控制信号包括导频部分和服务质量信息部分。 导频有助于通过可能具有与调度控制信号的发射机不同的信道条件的多个不同设备来恢复业务质量信息。 不同的设备可以受益于利用恢复的服务质量信息作出关于业务段中的业务信令的收益决定。

公开(公告)号：US20100118794A1

公开(公告)日：2010-05-13

申请号：US12267962

申请日：2008-11-10

申请人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

发明人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

IPC分类号： H04W28/16 ,  H04L27/28

CPC分类号： H04W72/042 ,  H04L1/0025 ,  H04L1/0084

摘要： Methods and apparatus related to partitioning traffic segments are described. An access router, having concurrent connections with two access terminals, each desiring to transmit traffic signals to the access router in the same traffic segment, partitions a traffic segment. The partition is such that a first portion of the traffic segment is allocated to a first access terminal and a second portion of the traffic segment is allocated to the second access terminal. Control information, e.g., conveying partition information, is communicated to access terminals prior to the traffic segment. In some embodiments, the partition information is communicated as part of a transmission request response signal, e.g., via phase of the request response signal. An access terminal which has been allocated a traffic segment partition portion identifies is allocation from the transmitted control information, and subsequently transmits traffic signals to the access router in its allocated portion of the traffic segment.

摘要翻译： 描述与划分业务段相关的方法和设备。 具有与两个接入终端的并发连接的接入路由器，每个接入终端都期望在同一业务段中向接入路由器发送业务信号，划分业务段。 该分区使得业务段的第一部分被分配给第一接入终端，业务段的第二部分被分配给第二接入终端。 控制信息，例如传送分区信息，在业务段之前被传送到接入终端。 在一些实施例中，分区信息作为传输请求响应信号的一部分被传送，例如通过请求响应信号的相位。 已经分配了业务段划分部分识别的接入终端是从所发送的控制信息的分配，随后在业务段的分配部分中向接入路由器发送业务信号。

公开(公告)号：US08774105B2

公开(公告)日：2014-07-08

申请号：US12267945

申请日：2008-11-10

申请人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

发明人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

IPC分类号： H04W4/00 ,  H04B7/212 ,  H04J3/00 ,  H04J3/17

CPC分类号： H04W72/042 ,  H04W72/0473

摘要： Methods and apparatus related to partitioning traffic segments are described. An access router, having concurrent connections with two access terminals and desiring to transmit traffic signals to the two access terminals in the same traffic segment, partitions a traffic segment. The partition is such that a first portion of the traffic segment is allocated to a first access terminal and a second portion of the traffic segment is allocated to the second access terminal. Control information, e.g., identifying partition portion assignments, data rate and/or coding information, is also communicated in the traffic segment as in-band control signaling. An access terminal, to which some of traffic signals are directed, receives and recovers the in-band control signaling, identifying its allocated partition portion of the traffic segment and identifying data rate and/or coding information used. The access terminal receives the traffic segment signals in its allocated partition portion and recovers the traffic information.

摘要翻译： 描述与划分业务段相关的方法和设备。 具有与两个接入终端的并发连接并且希望向同一业务段中的两个接入终端发送业务信号的接入路由器划分业务段。 该分区使得业务段的第一部分被分配给第一接入终端，业务段的第二部分被分配给第二接入终端。 控制信息，例如识别分区部分分配，数据速率和/或编码信息也在业务段中作为带内控制信令传送。 一些交通信号指向的接入终端接收和恢复带内控制信令，识别其分配的业务段的划分部分并识别所使用的数据速率和/或编码信息。 接入终端在其分配的分区部分接收业务段信号，并恢复业务信息。

公开(公告)号：US08208459B2

公开(公告)日：2012-06-26

申请号：US12267962

申请日：2008-11-10

申请人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

发明人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

IPC分类号： H04B7/212 ,  H04B7/208 ,  H04W4/00 ,  H04J3/00

CPC分类号： H04W72/042 ,  H04L1/0025 ,  H04L1/0084

摘要： Methods and apparatus related to partitioning traffic segments are described. An access router, having concurrent connections with two access terminals, each desiring to transmit traffic signals to the access router in the same traffic segment, partitions a traffic segment. The partition is such that a first portion of the traffic segment is allocated to a first access terminal and a second portion of the traffic segment is allocated to the second access terminal. Control information, e.g., conveying partition information, is communicated to access terminals prior to the traffic segment. In some embodiments, the partition information is communicated as part of a transmission request response signal, e.g., via phase of the request response signal. An access terminal which has been allocated a traffic segment partition portion identifies is allocation from the transmitted control information, and subsequently transmits traffic signals to the access router in its allocated portion of the traffic segment.

摘要翻译： 描述与划分业务段相关的方法和设备。 具有与两个接入终端的并发连接的接入路由器，每个接入终端都期望在同一业务段中向接入路由器发送业务信号，划分业务段。 该分区使得业务段的第一部分被分配给第一接入终端，业务段的第二部分被分配给第二接入终端。 控制信息，例如传送分区信息，在业务段之前被传送到接入终端。 在一些实施例中，分区信息作为传输请求响应信号的一部分被传送，例如通过请求响应信号的相位。 已经分配了业务段划分部分识别的接入终端是从所发送的控制信息的分配，随后在业务段的分配部分中向接入路由器发送业务信号。

公开(公告)号：US20100118793A1

公开(公告)日：2010-05-13

申请号：US12267945

申请日：2008-11-10

申请人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

发明人： Gavin Horn ,  Ashwin Sampath ,  Junyi Li ,  Rajiv Laroia

IPC分类号： H04W72/04

CPC分类号： H04W72/042 ,  H04W72/0473

摘要： Methods and apparatus related to partitioning traffic segments are described. An access router, having concurrent connections with two access terminals and desiring to transmit traffic signals to the two access terminals in the same traffic segment, partitions a traffic segment. The partition is such that a first portion of the traffic segment is allocated to a first access terminal and a second portion of the traffic segment is allocated to the second access terminal. Control information, e.g., identifying partition portion assignments, data rate and/or coding information, is also communicated in the traffic segment as in-band control signaling. An access terminal, to which some of traffic signals are directed, receives and recovers the in-band control signaling, identifying its allocated partition portion of the traffic segment and identifying data rate and/or coding information used. The access terminal receives the traffic segment signals in its allocated partition portion and recovers the traffic information.

摘要翻译： 描述与划分业务段相关的方法和设备。 具有与两个接入终端的并发连接并且希望向同一业务段中的两个接入终端发送业务信号的接入路由器划分业务段。 该分区使得业务段的第一部分被分配给第一接入终端，业务段的第二部分被分配给第二接入终端。 控制信息，例如识别分区部分分配，数据速率和/或编码信息也在业务段中作为带内控制信令传送。 一些交通信号指向的接入终端接收和恢复带内控制信令，识别其分配的业务段的划分部分并识别所使用的数据速率和/或编码信息。 接入终端在其分配的分区部分接收业务段信号，并恢复业务信息。

公开(公告)号：US20070242639A1

公开(公告)日：2007-10-18

申请号：US11487260

申请日：2006-07-14

申请人： Alexander Leonidov ,  Hui Jin ,  Rajiv Laroia ,  Junyi Li ,  Murari Srinivasan

发明人： Alexander Leonidov ,  Hui Jin ,  Rajiv Laroia ,  Junyi Li ,  Murari Srinivasan

IPC分类号： H04B7/216

CPC分类号： H04L27/2608

摘要： Improved ways of communicating assignment signals using flash signaling are described, e.g., for wireless terminals with low SNR, that are more robust against large variation of channel gains due to e.g., frequency selective fading and fast fading in time. Coding and modulation methods and apparatus that have excellent properties against symbol erasures are described. The use of flash signaling provides an improved assignment channel having strong performance on the fading channel without compromising the performance on the AWGN channel. In one exemplary embodiment, the coding and modulation method can tolerate up to 5 erased symbols out of 8 transmitted symbols. One embodiment reduces or minimizes the sector interference on the flash assignment by improving or maximizing orthogonality between different sectors. In addition, one embodiment describes improved ways of swapping flash assignment tone-symbols in the presence other high priority signals, like sector pilots and sector null pilots.

摘要翻译： 例如，对于具有低SNR的无线终端，使用闪信号进行传送分配信号的改进方式对于由于例如频率选择性衰落和时间上的快速衰落而导致的信道增益的大变化更加鲁棒。 描述了具有针对符号擦除的优异特性的编码和调制方法和装置。 闪光信令的使用提供了在衰落信道上具有强性能的改进的分配信道，而不损害AWGN信道上的性能。 在一个示例性实施例中，编码和调制方法可以容忍8个发送的符号中多达5个擦除的符号。 一个实施例通过改善或最大化不同扇区之间的正交性来减少或最小化闪存分配上的扇区干扰。 此外，一个实施例描述了在存在其他高优先级信号（如扇区导频和扇区空导频）时交换闪存分配音调符号的改进方式。

公开(公告)号：US08005158B2

公开(公告)日：2011-08-23

申请号：US11487260

申请日：2006-07-14

申请人： Alexander Leonidov ,  Hui Jin ,  Rajiv Laroia ,  Junyi Li ,  Murari Srinivasan

发明人： Alexander Leonidov ,  Hui Jin ,  Rajiv Laroia ,  Junyi Li ,  Murari Srinivasan

IPC分类号： H04L5/12 ,  H04L23/02

CPC分类号： H04L27/2608

摘要： Improved ways of communicating assignment signals using flash signaling are described, e.g., for wireless terminals with low SNR, that are more robust against large variation of channel gains due to e.g., frequency selective fading and fast fading in time. Coding and modulation methods and apparatus that have excellent properties against symbol erasures are described. The use of flash signaling provides an improved assignment channel having strong performance on the fading channel without compromising the performance on the AWGN channel. In one exemplary embodiment, the coding and modulation method can tolerate up to 5 erased symbols out of 8 transmitted symbols. One embodiment reduces or minimizes the sector interference on the flash assignment by improving or maximizing orthogonality between different sectors. In addition, one embodiment describes improved ways of swapping flash assignment tone-symbols in the presence other high priority signals, like sector pilots and sector null pilots.

摘要翻译： 例如，对于具有低SNR的无线终端，改进的使用闪信号进行分配信号的方式被描述，对于由于例如频率选择性衰落和时间上的快速衰落而导致的信道增益的大变化更加鲁棒。 描述了具有针对符号擦除的优异特性的编码和调制方法和装置。 闪光信令的使用提供了在衰落信道上具有强性能的改进的分配信道，而不损害AWGN信道上的性能。 在一个示例性实施例中，编码和调制方法可以容忍8个发送的符号中多达5个擦除的符号。 一个实施例通过改善或最大化不同扇区之间的正交性来减少或最小化闪存分配上的扇区干扰。 此外，一个实施例描述了在存在其他高优先级信号（如扇区导频和扇区空导频）时交换闪存分配音调符号的改进方式。