-
公开(公告)号：US20090086680A1
公开(公告)日：2009-04-02
申请号：US12165422
申请日：2008-06-30
IPC分类号： H04W36/30
CPC分类号： H04Q11/04 , H04B1/7075 , H04J13/0077 , H04J13/16 , H04L1/0007 , H04L1/1809 , H04L5/0007 , H04L7/06 , H04L25/14 , H04L27/2601 , H04Q11/0428 , H04Q2213/13098 , H04Q2213/13202 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/1327 , H04Q2213/13298 , H04Q2213/13332 , H04Q2213/1336 , H04Q2213/13389 , H04W28/04 , H04W28/18 , H04W72/0446 , H04W74/004 , H04W74/04 , H04W74/0833 , H04W84/14
摘要： A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power levels for a non-request state (i.e., steady state or ‘control hold’ state) versus a request state (i.e., ‘request to change’ state). In one particular application, a base station determines a request to change communications states with a reasonably high probability of detection and a reasonably low probability of false detection. The system has a reduced number of erroneous communications states, such as erroneous traffic channel allocations. The detection technique is compatible with 1×EV-DV systems and I-CDMA systems, but general enough to support systems employing various other communications protocols used in wired and wireless communications systems.
摘要翻译： 通信系统通过在给定的时间帧内进行至少两个请求的肯定标识来改善检测具有改变通信状态的请求的指示的信号的性能。 该系统可以通过对于非请求状态（即，稳态或“控制保持”状态）与请求状态（即，“改变请求”状态）的功率电平的差异来进一步提高性能。 在一个特定应用中，基站以相当高的检测概率确定改变通信状态的请求，并且具有相当低的错误检测概率。 该系统具有减少的错误通信状态的数量，例如错误的业务信道分配。 该检测技术与1xEV-DV系统和I-CDMA系统兼容，但一般足以支持采用有线和无线通信系统中使用的各种其他通信协议的系统。
-
公开(公告)号：US20090028114A1
公开(公告)日：2009-01-29
申请号：US12246190
申请日：2008-10-06
IPC分类号： H04J3/00
CPC分类号： H04W72/1263 , H04W80/06
摘要： An apparatus and method for staggering forward and reverse channel time slot allocation in a wireless communication allows a wireless communication unit, such as a base station processor or a subscriber access unit, to transmit a return message in less than a full time slot interval. Forward and reverse channel allocation occurs as a cycle of time slots occurring at periodic timing intervals. Transmission of a wireless frame carrying a message payload occurs at the beginning of the time slot. Since the forward and reverse channel allocation cycles need not be concurrent, or in phase, these cycles may be staggered with respect to each other. By staggering the forward and reverse channel allocation timing interval, the return message is sent after only a portion of a full timing interval, rather than being delayed up to one complete timing interval.
摘要翻译： 用于在无线通信中交错正向和反向信道时隙分配的装置和方法允许诸如基站处理器或订户接入单元的无线通信单元在小于全时隙间隔中发送返回消息。 正向和反向信道分配作为在周期性定时间隔发生的时隙的周期发生。 在时隙的开始发送携带消息有效载荷的无线帧。 由于正向和反向信道分配周期不需要并发或同相，所以这些周期可能相对于彼此交错。 通过交错前向和反向信道分配定时间隔，返回消息仅在完整定时间隔的一部分之后发送，而不是被延迟到一个完整的定时间隔。
-
公开(公告)号：US20150245352A1
公开(公告)日：2015-08-27
申请号：US14691568
申请日：2015-04-20
CPC分类号： H04W72/0446 , H04L1/165 , H04L7/06 , H04L25/14 , H04L27/2601 , H04Q11/0428 , H04Q2213/13098 , H04Q2213/13202 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/1327 , H04Q2213/13298 , H04Q2213/13332 , H04Q2213/1336 , H04Q2213/13389 , H04W8/005 , H04W28/04 , H04W48/08 , H04W52/16 , H04W52/325 , H04W52/50 , H04W74/04 , H04W76/28 , H04W84/14
摘要： A communication system, such as a wireless CDMA system, detects markers with fewer errors by having field units transmit the markers at different power levels (e.g., 9 dB for one marker and 11 dB for another marker). The difference in power levels of the markers allows the base station to identify the request markers using alternative criteria with a low probability of error, where the alternative criteria may include comparing the markers to respective energy level thresholds, monitoring occupancy of time slots, occupancy of mutually exclusive code channels, or combinations thereof. For example, in one particular embodiment, a request marker, which is generally a high priority marker, is transmitted with higher power, which improves the probability of detection and reduces the probability of false detection of the request marker.
摘要翻译： 诸如无线CDMA系统的通信系统通过使现场单元以不同的功率电平（例如，一个标记为9dB，另一个标记为11dB）来发送标记，来检测具有较少错误的标记。 标记的功率水平的差异允许基站使用具有低概率误差的替代标准来识别请求标记，其中替代标准可以包括将标记与相应的能级阈值进行比较，监视时隙的占用， 相互排斥的代码信道或其组合。 例如，在一个具体实施例中，通常是高优先级标记的请求标记以更高的功率发送，这提高了检测的概率，并降低了请求标记的错误检测的可能性。
-
公开(公告)号：US20140181622A1
公开(公告)日：2014-06-26
申请号：US14183181
申请日：2014-02-18
IPC分类号： H04L1/00
CPC分类号： H04L1/0041 , H03M13/03 , H04L1/0009 , H04L1/0025
摘要： A technique for encoding a signal used in a digital communication system in which individual traffic channel data rates may be adapted to specific channel conditions. In particular, a forward error correction coding rate is adapted for individual channels while at the same time maintaining a fixed block size independent of the FEC coding rate. This allows the system data rate to adapt to the channel conditions experienced by a specific user. Thus, users experiencing good communication conditions with low multipath distortion may be allocated higher capacity, whereas users with significant multipath distortion may make use of lower rate (higher levels of coding) error codes to maintain high quality. Messages are sent from a transmitter to a receiver to inform the receiver of the coding rate implemented at any given point in time. These parameters may be adjusted independent of transmitted power level through the expedient of ensuring that size of a transmitted frame remains constant, while permitting the ability to change FEC coding rates and FEC block sizes.
摘要翻译： 用于对在数字通信系统中使用的信号进行编码的技术，其中个体业务信道数据速率可以适应于特定信道条件。 特别地，前向纠错编码率适用于各个信道，同时保持独立于FEC编码率的固定块大小。 这允许系统数据速率适应特定用户经历的频道条件。 因此，具有低多径失真的良好通信条件的用户可以被分配较高的容量，而具有显着的多径失真的用户可以利用较低的速率（较高编码水平）的错误代码来维持高质量。 消息从发射机发送到接收机，以通知接收机在任何给定时间点实现的编码速率。 可以通过确保发送帧的大小保持恒定的方式来独立于发射功率电平来调整这些参数，同时允许改变FEC编码速率和FEC块大小的能力。
-
公开(公告)号：US20100011272A1
公开(公告)日：2010-01-14
申请号：US12563466
申请日：2009-09-21
CPC分类号： H04J13/16 , G11B20/1833 , H03M13/35 , H04B7/2631 , H04B2201/709709 , H04L1/0007 , H04L1/0025 , H04L1/0041 , H04L1/0042 , H04L1/0057 , H04L1/1607 , H04L1/1809 , H04L1/1816 , H04L1/1835 , H04L25/14
摘要： A protocol for optimizing the use of coded transmissions such as over wireless links. In this technique, interframes are split into segments selected to be an optimum size according to transmission characteristics of the radio channel. The inverse process is applied at the receiver. Using this scheme, segments containing erroneous data may be present.
摘要翻译： 用于优化诸如通过无线链路的编码传输的使用的协议。 在这种技术中，根据无线电信道的传输特性将接口帧划分成被选择为最佳大小的段。 在接收器处应用逆过程。 使用此方案可能会重新发送包含错误数据的段。
-
26.发明申请REPEATER HAVING DUAL RECEIVER OR TRANSMITTER ANTENNA CONFIGURATION WITH ADAPTATION FOR INCREASED ISOLATION 审中-公开具有双接收机或发射机天线配置的转接器适应增加的隔离公开(公告)号：US20100002620A1
公开(公告)日：2010-01-07
申请号：US12307801
申请日：2007-08-31
IPC分类号： H04B7/14
CPC分类号： H04B7/0615 , H01Q1/521 , H01Q3/2605 , H04B7/0842 , H04B7/15585
摘要： A repeater for a wireless communication network includes a reception antenna and first and second transmission antennas. The repeater also includes a weighting circuit which applies a weight to at least one of first and second signals on first and second transmission paths coupled to the first and second transmission antennas respectively, and a control circuit configured to control the weighting circuit in accordance with an adaptive algorithm to thereby increase isolation between a reception path coupled to the reception antenna and the first and second transmission paths.
摘要翻译： 无线通信网络的中继器包括接收天线和第一和第二发射天线。 中继器还包括加权电路，该加权电路对耦合到第一和第二发送天线的第一和第二传输路径分别对第一和第二信号中的至少一个施加权重;以及控制电路，被配置为根据 自适应算法，从而增加耦合到接收天线的接收路径与第一和第二传输路径之间的隔离。
-
公开(公告)号：US20090257479A1
公开(公告)日：2009-10-15
申请号：US12488798
申请日：2009-06-22
IPC分类号： H04B1/707
CPC分类号： H04W56/001 , H04B1/70752 , H04B1/709 , H04B7/2668 , H04B7/2681 , H04B2201/70703 , H04J13/0044 , H04W56/00 , H04W56/0085
摘要： Combinations of correlation results are used to achieve detection of multiple coded signals at a receiver in a wireless communications system. The code applied to signals includes a lower rate code and a higher rate code. The lower rate code is a nested or tiered code such that it comprises at least two code sequences of the higher rate code. The received coded signal is correlated with the higher rate code using a single higher rate correlator to provide a higher rate code correlation result. The higher rate code correlation results are fed to two or more lower rate code correlators that combine multiple higher rate code correlation results, each using a different lower rate code, to provide corresponding lower rate code correlation results. The presence of at least one coded signal or mutually exclusive coded signals can be determined from the lower rate code correlation results.
摘要翻译： 使用相关结果的组合来实现在无线通信系统中的接收机处的多个编码信号的检测。 应用于信号的代码包括较低速率代码和较高速率代码。 较低速率代码是嵌套或分层代码，使得其包括较高速率代码的至少两个代码序列。 接收到的编码信号与较高速率码相关，使用单个较高速率的相关器提供较高的速率码相关结果。 将较高速率码相关结果馈送到两个或更多个组合多个较高速率码相关结果的较低速率码相关器，每个使用不同的较低速率码，以提供相应的较低速率码相关结果。 可以从较低速率码相关结果确定至少一个编码信号或互斥编码信号的存在。
-
公开(公告)号：US20160029327A1
公开(公告)日：2016-01-28
申请号：US14877687
申请日：2015-10-07
CPC分类号： H04W52/146 , H04B7/0408 , H04B7/0619 , H04B7/08 , H04B7/2628 , H04W52/243 , H04W52/386 , H04W52/42 , H04W52/54 , H04W52/58 , H04W88/02 , H04W88/08
摘要： A subscriber unit, including an antenna array and an antenna array interface coupled to the antenna array, is described. Wireless transmissions, at least two of which are based on different directional transmissions from a transmitter, are received at the antenna array. Feedback messages are generated using the antenna array interface. The feedback messages are communicated using the antenna array to adjust settings of the transmitter.
-
公开(公告)号：US20130230025A1
公开(公告)日：2013-09-05
申请号：US13862149
申请日：2013-04-12
IPC分类号： H04B7/04
CPC分类号： H04W52/146 , H04B7/0408 , H04B7/0619 , H04B7/08 , H04B7/2628 , H04W52/243 , H04W52/386 , H04W52/42 , H04W52/54 , H04W52/58 , H04W88/02 , H04W88/08
摘要： A subscriber unit, including an antenna array and an antenna array interface coupled to the antenna array, is described. Wireless transmissions, at least two of which are based on different directional transmissions from a transmitter, are received at the antenna array. Feedback messages are generated using the antenna array interface. The feedback messages are communicated using the antenna array to adjust settings of the transmitter.
摘要翻译： 描述了包括天线阵列和耦合到天线阵列的天线阵列接口的用户单元。 在天线阵列处接收至少两个基于来自发射机的不同定向传输的无线传输。 使用天线阵列接口产生反馈消息。 使用天线阵列传送反馈消息以调整发射机的设置。
-
30.发明申请SYSTEM AND METHOD FOR COORDINATION OF WIRELESS MAINTENANCE CHANNEL POWER CONTROL 有权用于协调无线维护信道功率控制的系统和方法公开(公告)号：US20130003636A1
公开(公告)日：2013-01-03
申请号：US13615848
申请日：2012-09-14
IPC分类号： H04W52/02
CPC分类号： H04W52/16 , H04W28/0221 , H04W40/08 , H04W52/0219 , H04W52/0238 , H04W52/0245 , H04W52/241 , H04W52/243 , H04W52/248 , H04W52/287 , H04W52/322 , H04W52/325 , H04W52/44 , Y02D70/1222
摘要： In a wireless communication system, there are several wireless channels used for communication between users and a base station. Channel characteristics may be defined by whether a channel is carrying traffic data and the timing of the channel transmissions with respect to channels not carrying traffic data. Different power levels between channels carrying traffic data or not may be defined and individual power levels of each channel may be amended based on individual power level command responses.
摘要翻译： 在无线通信系统中，存在用于用户和基站之间的通信的若干无线信道。 信道特征可以由信道是否携带业务数据和相对于不携带业务数据的信道的信道传输的定时来定义。 可以定义携带业务数据的信道之间的不同功率电平，并且可以基于各个功率电平命令响应来修改每个信道的各个功率电平。
-
-
-
-
-
-
-
-
-
搜索结果
55 条记录 (耗时 0.03 秒)
