-
公开(公告)号：US20080240159A1
公开(公告)日：2008-10-02
申请号：US11968631
申请日：2008-01-02
IPC分类号： H04J3/24
摘要： Techniques for transmitting data in a communication system are described. A packet may be partitioned into multiple subpackets, and each subpacket may be encoded separately. The subpackets may be mapped to resources assigned for transmission of the packet, with at least one subpacket being mapped to a subset of the assigned resources. The assigned resources may include multiple tiles, with each tile corresponding to a block of time frequency resources. The subpackets may be mapped to the tiles such that (i) the subpackets are mapped to equal number of tiles to achieve similar decoding performance, (ii) each subpacket is mapped to at least NMIN tiles, if available, to achieve a certain minimum diversity order for the subpacket, and/or (iii) each subpacket is mapped to a subset of the multiple tiles, if possible, so that the subpacket can be decoded without having to demodulate all of the tiles.
摘要翻译： 描述用于在通信系统中发送数据的技术。 分组可以被划分成多个子分组，并且每个子分组可以被分开编码。 子分组可以被映射到分配用于分组的传输的资源，其中至少一个子分组被映射到所分配的资源的子集。 分配的资源可以包括多个瓦片，其中每个瓦片对应于时间频率资源块。 子分组可以被映射到瓦片，使得（i）子分组被映射到相等数量的分块以实现类似的解码性能，（ii）每个子分组被映射到至少N分钟分块，如果 为了实现子包的一定的最小分集顺序，和/或（iii）每个子包被映射到多个片的子集，如果可能的话，使得子包可被解码而不必解调所有的片。
-
公开(公告)号：US08798665B2
公开(公告)日：2014-08-05
申请号：US12163812
申请日：2008-06-27
申请人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov , Aamod Khandekar , Ashwin Sampath , Dexu Lin
发明人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov , Aamod Khandekar , Ashwin Sampath , Dexu Lin
IPC分类号： H04W48/12
CPC分类号： H04L5/0053 , H04L1/0056 , H04L1/0072 , H04L5/0096 , H04L27/10 , H04W4/20
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。
-
公开(公告)号：US08738056B2
公开(公告)日：2014-05-27
申请号：US11751467
申请日：2007-05-21
申请人： Alexei Gorokhov , Aamod Khandekar , Ravi Palanki
发明人： Alexei Gorokhov , Aamod Khandekar , Ravi Palanki
CPC分类号： H04L27/2613 , H04B1/7075 , H04B2201/70701 , H04L5/0023 , H04L5/0048 , H04L27/2655
摘要： Systems and methodologies are described that generate pilots for signal acquisition in a wireless communication system based on time domain sequences. The pilots may be generated by a base station and transmitted in a pilot field to one or more access terminals to aid in signal acquisition at each of the access terminals. One of the pilots may be common to all access points in the wireless communication system, thereby allowing an access terminal to obtain a timing estimate for the system while minimizing the effects of interference variations between base stations. Further, one or more generated pilots may be unique to each access point in order to allow each respective access point to be identified by its generated pilots.
摘要翻译： 描述了在基于时域序列的无线通信系统中生成用于信号采集的导频的系统和方法。 导频可以由基站产生并在导频字段中发送到一个或多个接入终端，以帮助在每个接入终端处的信号采集。 其中一个导频对于无线通信系统中的所有接入点可能是共同的，从而允许接入终端获得系统的定时估计，同时最小化基站之间的干扰变化的影响。 此外，一个或多个生成的导频可以对于每个接入点是唯一的，以便允许通过其生成的导频来识别每个相应的接入点。
-
公开(公告)号：US20090131061A1
公开(公告)日：2009-05-21
申请号：US12163812
申请日：2008-06-27
申请人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov , Aamod Khandekar , Ashwin Sampath , Dexu Lin
发明人： Ravi Palanki , Avneesh Agrawal , Alexei Gorokhov , Aamod Khandekar , Ashwin Sampath , Dexu Lin
CPC分类号： H04L5/0053 , H04L1/0056 , H04L1/0072 , H04L5/0096 , H04L27/10 , H04W4/20
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。
-
公开(公告)号：US20080285526A1
公开(公告)日：2008-11-20
申请号：US11751467
申请日：2007-05-21
申请人： Alexei Gorokhov , Aamod Khandekar , Ravi Palanki
发明人： Alexei Gorokhov , Aamod Khandekar , Ravi Palanki
CPC分类号： H04L27/2613 , H04B1/7075 , H04B2201/70701 , H04L5/0023 , H04L5/0048 , H04L27/2655
摘要： Systems and methodologies are described that generate pilots for signal acquisition in a wireless communication system based on time domain sequences. The pilots may be generated by a base station and transmitted in a pilot field to one or more access terminals to aid in signal acquisition at each of the access terminals. One of the pilots may be common to all access points in the wireless communication system, thereby allowing an access terminal to obtain a timing estimate for the system while minimizing the effects of interference variations between base stations. Further, one or more generated pilots may be unique to each access point in order to allow each respective access point to be identified by its generated pilots.
摘要翻译： 描述了在基于时域序列的无线通信系统中生成用于信号采集的导频的系统和方法。 导频可以由基站产生并在导频字段中发送到一个或多个接入终端，以帮助在每个接入终端处的信号采集。 其中一个导频对于无线通信系统中的所有接入点可能是共同的，从而允许接入终端获得系统的定时估计，同时最小化基站之间的干扰变化的影响。 此外，一个或多个生成的导频可以对于每个接入点是唯一的，以便允许通过其生成的导频来识别每个相应的接入点。
-
66.发明申请METHOD AND APPARATUS FOR SUPPORTING HALF-DUPLEX TERMINALS IN AN ASYNCHRONOUS MODE 有权用于支持异步模式中的双工半双工终端的方法和装置公开(公告)号：US20080130529A1
公开(公告)日：2008-06-05
申请号：US11848842
申请日：2007-09-06
申请人： Aamod Khandekar , Alexei Gorokhov , Ravi Palanki
发明人： Aamod Khandekar , Alexei Gorokhov , Ravi Palanki
IPC分类号： H04L5/16
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。
-
公开(公告)号：US20080095036A1
公开(公告)日：2008-04-24
申请号：US11864644
申请日：2007-09-28
申请人： Alexei Gorokhov , Aamod Khandekar , Ravi Palanki
发明人： Alexei Gorokhov , Aamod Khandekar , Ravi Palanki
IPC分类号： H04J11/00
CPC分类号： H04L5/0007 , H04L5/0026 , H04L5/0053 , H04L5/0073 , H04L25/0228 , H04L25/03305 , H04W24/00 , H04W48/08 , H04W52/24 , H04W52/243 , H04W52/247 , H04W52/281 , H04W52/343 , H04W52/56 , H04W52/58
摘要： Interference management is provided through use of a user-based interference control and/or a network-based interference control. For user-based interference control, the terminals are informed of the inter-sector interference observed by the neighbor sectors and can adjust their transmit powers accordingly so that the inter-sector interference is maintained within acceptable levels. For network-based interference control, each sector is informed of the inter-sector interference observed by the neighbor sectors and regulates data transmissions for its terminals such that the inter-sector interference is maintained within acceptable levels. Each system may utilize only user-based interference control, or only network-based interference control, or both.
摘要翻译： 通过使用基于用户的干扰控制和/或基于网络的干扰控制来提供干扰管理。 对于基于用户的干扰控制，向终端通知相邻扇区观测到的扇区间干扰，并且可以相应地调整它们的发射功率，使得扇区间干扰保持在可接受的水平内。 对于基于网络的干扰控制，每个扇区被通知相邻扇区观测到的扇区间干扰，并调节其终端的数据传输，使得扇区间干扰保持在可接受的水平内。 每个系统可以仅利用基于用户的干扰控制，或仅使用基于网络的干扰控制，或两者。
-
公开(公告)号：US08885550B2
公开(公告)日：2014-11-11
申请号：US12446689
申请日：2007-10-26
CPC分类号： H04L27/261 , H04W28/00 , H04W72/04
摘要： Beacon symbols are sent periodically from the base stations in an OFDM system. The entire power of the base station, or a large portion of it is concentrated in these symbols, thus they are very easily recognized by the mobile stations. The frequencies upon which these symbols are transmitted and the time at which they are transmitted communicates information such as the base station/sector identity and the preferred carrier of the given base station/sector to the mobile station. In order to avoid collision between the beacon symbols of different base stations and sectors, the beacon symbols from different base stations/sectors are transmitted at different symbols times and on different subcarriers.
摘要翻译： 信标符号在OFDM系统中从基站周期性地发送。 基站的整个功率或其大部分集中在这些符号中，因此它们被移动台非常容易地识别。 发送这些符号的频率和它们被发送的时间将诸如基站/扇区标识和给定基站/扇区的优选载波的信息传送给移动站。 为了避免不同基站和扇区的信标符号之间的冲突，来自不同基站/扇区的信标符号在不同的符号时间和不同子载波上发送。
-
69.发明授权Methods and systems for processing overhead reduction for control channel packets 有权用于处理控制信道数据包开销降低的方法和系统公开(公告)号：US08374200B2
公开(公告)日：2013-02-12
申请号：US11768135
申请日：2007-06-25
IPC分类号： H04J3/24
CPC分类号： H04L1/0045 , H04L1/0061 , H04L1/0072 , H04L1/0078
摘要： Various methods and systems receiving information from an access point over a wireless link in order to reduce processing and/or transmission overhead are disclosed. Such methods and systems may include the processing of a received packet using a descrambling operation on at least a portion of the packet's information based on a MAC-ID associated with an access terminal to produce at least a first processed packet, and determining whether the received packet is targeted to the access terminal based on the first processed packet.
摘要翻译： 公开了通过无线链路从接入点接收信息以减少处理和/或传输开销的各种方法和系统。 这样的方法和系统可以包括基于与接入终端相关联的MAC-ID，使用对分组信息的至少一部分的解扰操作来处理接收到的分组，以产生至少第一处理分组，以及确定是否接收到 分组基于第一处理分组被定向到接入终端。
-
公开(公告)号：US08365047B2
公开(公告)日：2013-01-29
申请号：US13330999
申请日：2011-12-20
IPC分类号： H03M13/00
CPC分类号： H04L1/0007 , H04L1/0009 , H04L1/0021 , H04L1/0042 , H04L1/1812 , H04L1/1822
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.
-
-
-
-
-
-
-
-
-
搜索结果
315 条记录 (耗时 0.029 秒)
