公开(公告)号：US20070097908A1

公开(公告)日：2007-05-03

申请号：US11261805

申请日：2005-10-27

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Rajiv Vijayan ,  Edward Teague ,  Fatih Ulupinar

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Rajiv Vijayan ,  Edward Teague ,  Fatih Ulupinar

IPC分类号： H04Q7/00 ,  H04B7/216

CPC分类号： H04L5/023 ,  H04L27/2602 ,  H04W48/12

摘要： To support mobile stations that are not capable of demodulating the entire bandwidth or that can be made to demodulate less than the entire bandwidth, a system, apparatus and method are provided to schedule users on less than all of the bandwidth. Further, certain users can be scheduled on more of the bandwidth than others.

公开(公告)号：US20060072604A1

公开(公告)日：2006-04-06

申请号：US11129636

申请日：2005-05-13

申请人： Arak Sutivong ,  Avneesh Agrawal ,  Alexei Gorokhov ,  Edward Teague

发明人： Arak Sutivong ,  Avneesh Agrawal ,  Alexei Gorokhov ,  Edward Teague

IPC分类号： H04J3/16

CPC分类号： H04W74/04 ,  H04W74/002

摘要： Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate.

摘要翻译： 飞行员根据需要在反向链路上传输，用于前向链路上的信道估计和数据传输。 基站在反向链路上选择至少一个用于按需导频发送的终端。 每个选择的终端是用于在前向链路上接收数据传输的候选者。 基站为每个选择的终端分配时间频率分配，其可以用于宽带导频，窄带导频或某种其他类型的导频。 基站从每个所选终端接收并处理按需导频传输，并根据接收到的导频传输导出终端的信道估计。 基站可以基于所有选择的终端的信道估计来安排在前向链路上进行数据传输的终端。 基站还可以基于其信道估计来处理数据（例如，执行波束成形或本征导向）以传输到每个调度的终端。

公开(公告)号：US20050271012A1

公开(公告)日：2005-12-08

申请号：US10969158

申请日：2004-10-20

申请人： Avneesh Agrawal ,  Edward Teague ,  Tingfang Ji

发明人： Avneesh Agrawal ,  Edward Teague ,  Tingfang Ji

IPC分类号： H04W36/06 ,  H04W36/18 ,  H04B1/00 ,  H04B15/00 ,  H04J3/16 ,  H04J3/22 ,  H04L12/28 ,  H04Q7/00

CPC分类号： H04W36/18 ,  H04W36/06

摘要： For soft handoff on the reverse link with restrictive reuse, a wireless terminal searches for pilots transmitted by sectors in a wireless system, measures the detected pilots, selects a serving sector (e.g., the strongest received sector), and identifies non-serving sectors that may receive high interference from the terminal. The serving sector assigns the terminal with subband(s) that are usable by the serving sector and unusable by the non-serving sectors. The terminal transmits data symbols on the assigned subbands to the serving and non-serving sectors. These sectors process the reverse link transmission from the terminal and obtain soft-decision symbols, which are estimates of the transmitted data symbols. The soft-decision symbols from co-located sectors may be combined and then decoded to obtain decoded packets. The sectors may also independently decode the soft-decision symbols, and the decoded packets from these sectors may be combined to obtain final decoded packets for the terminal.

摘要翻译： 对于具有限制性重用的反向链路上的软切换，无线终端搜索无线系统中的扇区传输的导频，测量检测到的导频，选择服务扇区（例如，最强的接收扇区），并识别非服务扇区 可能会受到来自终端的高干扰。 服务扇区为终端分配可由服务扇区使用且不能由非服务扇区使用的子带。 终端在分配的子带上发送数据符号给服务扇区和非服务扇区。 这些扇区处理来自终端的反向链路传输，并获得作为发送数据符号的估计的软判决符号。 可以组合来自同位置扇区的软判决符号，然后对其进行解码以获得解码的分组。 这些扇区还可以独立地解码软判决符号，并且可以组合来自这些扇区的解码分组以获得终端的最终解码分组。

公开(公告)号：US20050096062A1

公开(公告)日：2005-05-05

申请号：US10871084

申请日：2004-06-18

申请人： Tingfang Ji ,  Avneesh Agrawal ,  Edward Teague

发明人： Tingfang Ji ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： H04W16/10 ,  H04W16/02 ,  H04W16/12 ,  H04W72/08 ,  H04Q7/20

CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W72/0453 ,  H04W72/082

摘要： For restrictive reuse, each cell (or each sector) is assigned (1) a set of usable subbands that may be allocated to users in the cell and (2) a set of forbidden subbands that is not used. The usable and forbidden sets for each cell are orthogonal to one other. The usable set for each cell also overlaps the forbidden set for each neighboring cell. A user u in a cell x may be allocated subbands in the usable set for that cell. If user u observes/causes high level of interference from/to a neighboring cell y, then user u may be allocated subbands from a “restricted” set containing subbands included in both the usable set for cell x and the forbidden set for cell y. User u would then observe/cause no interference from/to cell y. The subband restriction may be extended to avoid interference from multiple neighboring cells.

摘要翻译： 对于限制性重用，分配每个小区（或每个扇区）（1）可以分配给小区中的用户的一组可用子带，以及（2）未使用的一组禁止子带。 每个单元的可用和禁止的集合彼此正交。 每个单元的可用集合也与每个相邻单元的禁止集重叠。 小区x中的用户u可以被分配给该小区的可用集合中的子带。 如果用户u观察到/来自相邻小区y的高水平的干扰，则可以从包含小区x的可用集合和小区y的禁止集合的包含子带的“受限制”集合中分配用户u的子带。 用户u然后将观察/不造成来自/到小区y的干扰。 可以扩展子带限制以避免来自多个相邻小区的干扰。

公开(公告)号：US20050096061A1

公开(公告)日：2005-05-05

申请号：US10858870

申请日：2004-06-01

申请人： Tingfang Ji ,  Avneesh Agrawal ,  Gavin Horn ,  Edward Teague

发明人： Tingfang Ji ,  Avneesh Agrawal ,  Gavin Horn ,  Edward Teague

IPC分类号： H04W16/02 ,  H04W16/12 ,  H04Q7/20

CPC分类号： H04W16/02 ,  H04W16/12 ,  H04W72/048 ,  H04W72/085

摘要： To reduce inter-sector interference for “weak” users and combat a potentially large variation in interference levels observed by “strong” and weak users, system resources (e.g., frequency subbands) available for data transmission in a system are partitioned into multiple (e.g., three) disjoint sets. Each sector in the system is assigned one subband set. Neighboring sectors are assigned different subband sets such that the subband set assigned to each sector is orthogonal to the subband sets assigned to neighboring sectors. Each sector has an assigned subband set and an unassigned subband set, which contains all subbands not in the assigned set. Weak users in each sector (which are typically strong interferers to neighboring sectors) are allocated subbands in the assigned set. Strong users in each sector are allocated subbands in the unassigned set. The weak users in each sector are then orthogonal to strong interferers in neighboring sectors.

摘要翻译： 为了减少“弱”用户的扇区间干扰，并且打击“强”和弱用户观察到的干扰水平的潜在巨大变化，可用于系统中的数据传输的系统资源（例如，频率子带）被划分为多个（例如， ，三）不相交的集合。 系统中的每个扇区被分配一个子带集。 分配相邻扇区的不同子带组，使得分配给每个扇区的子带集与分配给相邻扇区的子带集正交。 每个扇区具有分配的子带集和未分配的子带集合，其包含不在分配集合中的所有子带。 每个扇区（通常是相邻扇区的强干扰源）中的弱用户在分配集中被分配子带。 每个扇区中的强用户在未分配的集合中分配子带。 每个扇区中的弱用户然后与相邻扇区中的强干扰源正交。

公开(公告)号：US20060018258A1

公开(公告)日：2006-01-26

申请号：US11020412

申请日：2004-12-22

申请人： Edward Teague ,  Avneesh Agrawal

发明人： Edward Teague ,  Avneesh Agrawal

IPC分类号： H04L12/26

CPC分类号： H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/1812 ,  H04W72/085

摘要： A method of optimizing performance in a wireless communication system are provided, the method transmitting a first parameter using a first channel before the optimization of one or more selected channels, wherein said first parameter comprises a modulation scheme used to optimize performance of one or more channels and a first schedule.

摘要翻译： 提供了一种在无线通信系统中优化性能的方法，所述方法在优化一个或多个所选择的信道之前使用第一信道发送第一参数，其中所述第一参数包括用于优化一个或多个信道的性能的调制方案 和第一个时间表。

公开(公告)号：US20070147253A1

公开(公告)日：2007-06-28

申请号：US11317868

申请日：2005-12-22

申请人： Arak Sutivong ,  Avneesh Agrawal ,  Edward Teague

发明人： Arak Sutivong ,  Avneesh Agrawal ,  Edward Teague

IPC分类号： H04L12/26

CPC分类号： H04L1/1829 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/1816 ,  H04L1/1819 ,  H04L2001/125

摘要： A method and apparatus to determine whether a transmission was successfully received in a multiple access communication system is claimed. First and second encoded data packets are received and decoded. The first and second data packets are then re-encoded, and correlated to determine whether the first and second re-encoded data packets are the same. If there is a high degree of correlation, an indicator of acknowledgement is transmitted to indicate that there is a high degree of correlation between the first and second re-encoded data packets. If there is a low degree of correlation, a determination is made that the previously transmitted indicator of acknowledgement was correctly received.

摘要翻译： 要求确定在多址通信系统中是否成功接收到传输的方法和装置。 第一和第二编码数据分组被接收和解码。 然后对第一和第二数据分组进行重新编码，并进行相关，以确定第一和第二重新编码的数据分组是否相同。 如果存在高度的相关性，则发送确认的指示符以指示第一和第二重新编码的数据分组之间存在高度的相关性。 如果存在低度的相关性，则确定先前发送的确认指示符被正确地接收。

公开(公告)号：US20070097909A1

公开(公告)日：2007-05-03

申请号：US11261832

申请日：2005-10-27

申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Rajiv Vijayan ,  Edward Teague ,  Fatih Ulupinar

发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Rajiv Vijayan ,  Edward Teague ,  Fatih Ulupinar

IPC分类号： H04Q7/00

CPC分类号： H04W28/20 ,  H04W8/22 ,  H04W72/12 ,  H04W72/1205 ,  H04W72/1268

摘要： To support mobile stations that are not capable of demodulating the entire bandwidth or that can be made to demodulate less than the entire bandwidth, a system, apparatus and method are provided to schedule users on less than all of the bandwidth. Further, certain users can be scheduled on more of the bandwidth than others.

摘要翻译： 为了支持不能解调整个带宽或者可以使其解调的小于整个带宽的移动站，提供了一种系统，装置和方法，以在小于全部带宽上调度用户。 此外，某些用户可以比其他用户更多地调度带宽。

公开(公告)号：US20060285601A1

公开(公告)日：2006-12-21

申请号：US11447378

申请日：2006-06-05

申请人： David Julian ,  Edward Teague

发明人： David Julian ,  Edward Teague

IPC分类号： H04K1/10

CPC分类号： H04W74/08 ,  H04L5/023 ,  H04L27/2601 ,  H04L27/2602 ,  H04W28/06 ,  H04W28/26 ,  H04W36/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/002

摘要： Apparatus and methods for interlacing communications in random access control channels of an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system are described. A wireless communication device communicating over distinct OFDMA control channels to multiple serving sectors may operate under link limited conditions. The wireless communication device can interlace the communications between the multiple serving sectors. The wireless communication device can interlace the control channel communications in a number of interlaces equal to the number of distinct control channels over which communications are scheduled. In another embodiment, the wireless communication device divide the multiple scheduled control channel communications into two or more sets and can interlace the sets. In another embodiment, the wireless communication device can reserve a first interlace for control channel communications with the serving sector and can time multiplex the remaining control channel communications on a second interlace.

摘要翻译： 描述了正交频分多址（OFDMA）无线通信系统的随机接入控制信道中的通信交织的装置和方法。 在不同的OFDMA控制信道上向多个服务扇区通信的无线通信设备可以在链路有限的条件下操作。 无线通信设备可以交织多个服务扇区之间的通信。 无线通信设备可以将控制信道通信交织在等于通过其调度通信的不同控制信道的数量的多个交织。 在另一个实施例中，无线通信设备将多个调度的控制信道通信划分成两个或多个集合，并且可以交织这些集合。 在另一个实施例中，无线通信设备可以预留用于与服务扇区的控制信道通信的第一交错，并且可以在第二交错上对剩余的控制信道通信进行时间复用。

公开(公告)号：US20060223449A1

公开(公告)日：2006-10-05

申请号：US11261836

申请日：2005-10-27

申请人： Hemanth Sampath ,  Alexei Gorokhov ,  Aamod Khandekar ,  Edward Teague ,  David Julian ,  Tamer Kadous

发明人： Hemanth Sampath ,  Alexei Gorokhov ,  Aamod Khandekar ,  Edward Teague ,  David Julian ,  Tamer Kadous

IPC分类号： H04B7/00 ,  H04B1/00

CPC分类号： H04L1/0028 ,  H04L1/0026 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

摘要： Methods and apparatuses are disclosed for providing flexible channel information feedback. In some cases this may be according to reporting types assigned by one or more sectors, with different reporting types for each sector. In other cases, a reporting mode is determined to determine the reporting types to be utilized.