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1. 发明授权

US5727028A Method and apparatus for receiving a signal in a digital radio frequency communication system 失效
标题翻译：用于在数字射频通信系统中接收信号的方法和装置
公开(公告)号：US5727028A
公开(公告)日：1998-03-10
申请号：US690606
申请日：1996-07-31
申请人： Amitava Ghosh , Kamyar Rohani
发明人： Amitava Ghosh , Kamyar Rohani
IPC分类号： H04B1/707 , H04L27/227 , H04L27/06 , H03D1/00
CPC分类号： H04L27/2278 , H04B1/707
摘要： The apparatus includes a demodulator (70) responsive to a first received symbol (68) associated with a first transmitted symbol (39). The demodulator has a plurality of outputs (72) and produces a first set of outputs (99). The demodulator (70) is also responsive to a second received symbol (68) associated with a second transmitted symbol (39), and produces a second set of outputs (99). A coherent detector (100) receives some outputs from the first set of outputs (99), producing an estimate of the first transmitted symbol. The coherent detector also receives some outputs from the second set of outputs (99), producing an estimate of the second transmitted symbol. A first energy value (135) and an index (101) are associated with the first estimate, while a second energy value (135) is associated with the second estimate. A averaging circuit (150), which determines an average of the first energy value (135) and the second energy value (135) to produce an average energy value (140), is responsive to the coherent detector (100). A first combiner (130) is responsive to the coherent detector (100), combining the index (101) and the first energy value (135) to produce a weighted index (131). A second combiner (133) is responsive to the averaging circuit (150) and is also responsive to the first combiner (130), combining the weighted index (131) and the average energy value (140) to produce a channel-coded index (141). A deinterleaver (80) is responsive to the second combiner (133), receiving the channel-coded index (141).
摘要翻译：该装置包括响应于与第一发送符号（39）相关联的第一接收符号（68）的解调器（70）。解调器具有多个输出（72）并产生第一组输出（99）。解调器（70）还响应与第二发送符号（39）相关联的第二接收符号（68），并产生第二组输出（99）。相干检测器（100）从第一组输出（99）接收一些输出，产生第一发射符号的估计。相干检测器还从第二组输出（99）接收一些输出，产生第二发射符号的估计。第一能量值（135）和索引（101）与第一估计相关联，而第二能量值（135）与第二估计相关联。确定平均能量值（135）和第二能量值（135）以产生平均能量值（140）的平均电路（150）响应于相干检测器（100）。第一组合器（130）响应于相干检测器（100），组合索引（101）和第一能量值（135）以产生加权索引（131）。第二组合器（133）响应于平均电路（150）并且还响应于第一组合器（130），组合加权索引（131）和平均能量值（140）以产生信道编码索引（ 141）。解交织器（80）响应于第二组合器（133），接收信道编码索引（141）。

2. 发明授权

US5629934A Power control for CDMA communication systems 失效
标题翻译： CDMA通信系统的功率控制
公开(公告)号：US5629934A
公开(公告)日：1997-05-13
申请号：US491336
申请日：1995-06-30
申请人： Amitava Ghosh , Kamyar Rohani
发明人： Amitava Ghosh , Kamyar Rohani
IPC分类号： H04B7/005 , H04B7/26 , H04W36/18 , H04W48/06 , H04J13/00
CPC分类号： H04W52/267 , H04W48/06 , H04W36/18
摘要： A transmitter transmits the desired signal using a continuous duty cycle at transmission rates of less than full rate (FIG. 6 ). The energy used in each power control group is related to the transmission rate. By repeating the power control groups, time division diversity (FIG. 6 ) is provided. In the receiver, the received power control groups are analyzed and compared to several levels of energy thresholds (73, 75, 77, 79). The results of the comparisons are converted into a power control signal (74, 76, 78, 80, 81) and returned to the mobile. The mobiles are capable of selecting the appropriate bit (93) and adjusting their power (94). Alternatively, an indicator of the transmission rate can be forwarded (155) in advance of the frame. The receiver compares a power estimate with the threshold for the transmission rate indicated (166).
摘要翻译：发射机使用小于全速率的传输速率的连续占空比发射所需信号（图6）。每个功率控制组中使用的能量与传输速率有关。通过重复功率控制组，提供时分多路化（图6）。在接收机中，分析接收到的功率控制组并将其与几个能级阈值（73,75,77,79）进行比较。比较的结果被转换成功率控制信号（74,76,78,80,81）并返回到移动台。移动台能够选择适当的位（93）并调整其功率（94）。或者，可以在帧之前转发（155）传输速率的指示符。接收机将功率估计与所指示的传输速率的阈值进行比较（166）。

3. 发明授权

US5583886A Method for determining a plurality of channel responses and modifying a received signal therewith 失效
标题翻译：用于确定多个信道响应并用其修改接收信号的方法
公开(公告)号：US5583886A
公开(公告)日：1996-12-10
申请号：US985051
申请日：1992-12-03
申请人： Kamyar Rohani , Amitava Ghosh , R. Mark Harrison
发明人： Kamyar Rohani , Amitava Ghosh , R. Mark Harrison
IPC分类号： H04B7/005 , H04L25/02 , H04B3/46 , H04B17/00
CPC分类号： H04L25/0204 , H04B7/005
摘要： Each of a plurality of transmitters (31-37) transmits (62) one of a plurality of known signals. The known signals being known to a receiver (40). The receiver (40) then measures the known signals (63); and using those measurements, estimates the plurality of channel responses (64). The channel responses are then used to determine a power ratio parameter (65) and a phase correction parameter (66).
摘要翻译：多个发射机（31-37）中的每一个发射（62）多个已知信号中的一个。接收器（40）已知的已知信号。接收器（40）然后测量已知信号（63）; 并且使用这些测量来估计多个信道响应（64）。然后，通道响应用于确定功率比参数（65）和相位校正参数（66）。

4. 发明授权

US5406585A Method and apparatus for trellis decoding in a multiple-access system 失效
标题翻译：用于在多址系统中进行网格解码的方法和装置
公开(公告)号：US5406585A
公开(公告)日：1995-04-11
申请号：US983199
申请日：1992-11-30
申请人： Kamyar Rohani , Amitava Ghosh
发明人： Kamyar Rohani , Amitava Ghosh
IPC分类号： H04B1/707 , H04L7/08 , H04L25/02 , H04L27/06
CPC分类号： H04B1/707 , H04L7/08 , H04L25/0206
摘要： A method is provided of discerning a signal of a desired user on a channel having a desired user and a plurality of interfering users, each, upon occasion, transmitting an identifiable, known pilot symbol. The method includes the steps of determining a channel response of the desired user and each of the interfering users and calculating a metric equal to the squared difference between a received signal and a sum of the products of transmitted signals and channel responses for the desired user and each of the plurality of interfering users. The method also includes the step of discerning the signal of the desired user based, at least in part, upon a minimum metric.
摘要翻译：提供了一种在具有期望的用户和多个干扰用户的信道上识别期望用户的信号的方法，每个都有时发送可识别的已知导频符号。该方法包括以下步骤：确定期望用户和每个干扰用户的信道响应，并且计算等于所接收的信号与所期望用户的发射信号和信道响应的乘积之和之间的平方差的度量，以及每个干扰用户。该方法还包括至少部分地基于最小度量来辨别所需用户的信号的步骤。

5. 发明授权

US08780937B2 Method and apparatus for reducing round trip latency and overhead within a communication system 有权
标题翻译：用于减少通信系统内的往返延迟和开销的方法和装置
公开(公告)号：US08780937B2
公开(公告)日：2014-07-15
申请号：US13218661
申请日：2011-08-26
申请人： Brian K. Classon , Kevin L. Baum , Amitava Ghosh , Robert T. Love , Vijay Nangia , Kenneth A. Stewart
发明人： Brian K. Classon , Kevin L. Baum , Amitava Ghosh , Robert T. Love , Vijay Nangia , Kenneth A. Stewart
IPC分类号： H04J3/24 , H04B7/26
CPC分类号： H04B7/2656 , H04L1/1822
摘要： During operation radio frames are divided into a plurality of subframes. A frame duration is selected from two or more possible frame durations. Further, a subframe type is selected from two or more types of subframes. Data is placed within the plurality of subframes and is transmitted over the radio frames.
摘要翻译：在操作期间，无线电帧被分成多个子帧。从两个或更多可能的帧持续时间中选择帧持续时间。此外，从两种或更多种类型的子帧中选择子帧类型。数据被放置在多个子帧内并通过无线电帧传输。

6. 发明授权

US08223854B2 Method and apparatus for transmission of uplink control signaling and user data in a single carrier orthogonal frequency division multiplexing communication system 有权
标题翻译：在单载波正交频分复用通信系统中传输上行控制信令和用户数据的方法和装置
公开(公告)号：US08223854B2
公开(公告)日：2012-07-17
申请号：US11860615
申请日：2007-09-25
申请人： Amitava Ghosh , Rapeepat Ratasuk , Weimin Xiao
发明人： Amitava Ghosh , Rapeepat Ratasuk , Weimin Xiao
IPC分类号： H04K1/10
CPC分类号： H04L5/0053 , H04L1/0023 , H04L1/0068 , H04L1/0075 , H04L1/1607 , H04L5/0055 , H04L5/0057 , H04L27/2636
摘要： A user equipment (UE) operating in an Orthogonal Frequency Division Multiplexing communication system transmits Layer 1 and Layer 2 user data non-associated and user data associated control signaling on an uplink by puncturing user data information with the user data non-associated and user data associated control signaling to produce a data stream wherein the control signaling and user data information are multiplexed. The UE then conveys the punctured data stream to a radio access network via an air interface. The communication system further provides for a selection of a coding and modulation for the control signaling based on a modulation and coding scheme of the user data and a transmission scheme that is applied for transmission of the user data information over the air-interface.
摘要翻译：在正交频分复用通信系统中操作的用户设备（UE）通过用用户数据非关联和用户数据对用户数据信息进行穿孔来在上行链路上发送非相关联的用户数据和用户数据相关联的控制信令相关联的控制信令以产生数据流，其中控制信令和用户数据信息被复用。然后，UE经由空中接口将穿孔的数据流传送到无线电接入网络。通信系统还基于用户数据的调制和编码方案以及应用于通过空中接口传输用户数据信息的传输方案，进一步提供用于控制信令的编码和调制的选择。

7. 发明授权

US08107885B2 Method and apparatus for providing a distributed architecture digital wireless communication system 有权
标题翻译：用于提供分布式架构数字无线通信系统的方法和装置
公开(公告)号：US08107885B2
公开(公告)日：2012-01-31
申请号：US10695513
申请日：2003-10-28
申请人： Robert T. Love , Kenneth A. Stewart , Amitava Ghosh
发明人： Robert T. Love , Kenneth A. Stewart , Amitava Ghosh
IPC分类号： H04B17/00
CPC分类号： H04W72/1231 , H04L1/1845 , H04L1/20 , H04W52/146 , H04W72/1252
摘要： A communication system supports H-ARQ, AMC, active set handoff, and scheduling functions in a distributed fashion by allowing a mobile station (MS) to signal control information corresponding to an enhanced reverse link transmission to Active Set base transceiver stations (BTSs) and by allowing the BTSs to perform control functions that were supported by an RNC in the prior art. The communication system allows time and SIR-based H-ARQ flush functions at the BTSs during soft handoff (SHO), provides an efficient control channel structure to support scheduling, H-ARQ, AMC functions for an enhanced reverse link, or uplink, channel in order to maximize throughput, and enables an MS in a SHO region to choose a scheduling assignment corresponding to a best TFRI out of multiple assignments it receives from multiple active set BTS. As a result, the enhanced uplink channel can be scheduled during SHO without any explicit communication between the BTSs.
摘要翻译：通信系统通过允许移动台（MS）将对应于增强的反向链路传输的控制信息发送到主动集群基站收发台（BTS）和通信系统中，以分布式方式支持H-ARQ，AMC，主动设置切换和调度功能，通过允许BTS执行现有技术中由RNC支持的控制功能。通信系统在软切换（SHO）期间允许在BTS处的时间和基于SIR的H-ARQ冲洗功能，提供有效的控制信道结构以支持调度，用于增强的反向链路的H-ARQ，AMC功能或上行链路以便最大化吞吐量，并且使得SHO区域中的MS能够从多个活动集BTS接收的多个分配中选择对应于最佳TFRI的调度分配。结果，可以在SHO期间调度增强上行链路信道，而不在BTS之间进行任何明确的通信。

8. 发明授权

US08102802B2 Method and apparatus for providing downlink acknowledgments and transmit indicators in an orthogonal frequency division multiplexing communication system 有权
标题翻译：在正交频分复用通信系统中提供下行确认和发送指示符的方法和装置
公开(公告)号：US08102802B2
公开(公告)日：2012-01-24
申请号：US11692400
申请日：2007-03-28
申请人： Rapeepat Ratasuk , Amitava Ghosh , Weimin Xiao
发明人： Rapeepat Ratasuk , Amitava Ghosh , Weimin Xiao
IPC分类号： H04W4/00
CPC分类号： H04L1/1861 , H04B1/707 , H04J11/005 , H04L5/0007 , H04L5/0016 , H04L5/0053 , H04L5/0091
摘要： A communication system provides downlink acknowledgments corresponding to uplink transmission using hybrid automatic repeat request to multiple users in an Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth comprises multiple frequency sub-carriers, by spreading each acknowledgment of multiple acknowledgments with a selected spreading sequence of multiple spreading sequences to produce multiple spread acknowledgments, wherein each acknowledgment is intended for a different user of the multiple users, and distributing the multiple spread acknowledgments across the multiple frequency sub-carriers.
摘要翻译：通信系统使用混合自动重复请求向正交频分复用通信系统中的多个用户提供与上行链路传输相对应的下行链路确认，其中频率带宽包括多个频率子载波，通过用选定的扩展序列扩展多个确认的每个确认多个扩展序列以产生多个扩展确认，其中每个确认旨在用于多个用户的不同用户，并且在多个频率子载波之间分配多个扩展确认。

9. 发明授权

US08098644B2 Method and apparatus for uplink resource allocation in a frequency division multiple access communication system 有权
标题翻译：用于频分多址通信系统中的上行链路资源分配的方法和装置
公开(公告)号：US08098644B2
公开(公告)日：2012-01-17
申请号：US11621125
申请日：2007-01-09
申请人： Weimin Xiao , Amitava Ghosh , Robert T. Love , Rapeepat Ratasuk , Yakun Sun
发明人： Weimin Xiao , Amitava Ghosh , Robert T. Love , Rapeepat Ratasuk , Yakun Sun
IPC分类号： H04B7/208
CPC分类号： H04W52/346 , H04W24/00 , H04W52/14 , H04W52/242 , H04W72/0453 , H04W72/0473 , Y02D70/122 , Y02D70/14
摘要： To address the need for a resource allocation scheme that results in a better tradeoff between the cell-edge performance and the overall spectral efficiency, a communication system is provided that allocates uplink transmit power to user equipment (UEs) based on a fractional power control scheme. In another embodiment, since the cell-edge users are also likely to be power limited, the communication system may implement a minimized uplink transmission bandwidth resource allocation scheme that may work with the fractional power control scheme to achieve a level of performance desired for uplink transmissions in 3GPP (Third Generation Partnership Project) and 3GPP2 Evolution communication systems.
摘要翻译：为了满足导致在小区边缘性能与总体频谱效率之间更好的权衡的资源分配方案的需求，提供了一种通信系统，其基于分数功率控制方案向用户设备（UE）分配上行链路传输功率。在另一个实施例中，由于小区边缘用户也可能受功率限制，所以通信系统可以实现最小化的上行链路传输带宽资源分配方案，其可以与分数功率控制方案一起工作，以实现上行链路传输所需的性能水平在3GPP（第三代合作伙伴计划）和3GPP2 Evolution通信系统中。

10. 发明授权

US08073062B2 Method and apparatus for downlink resource allocation in an orthogonal frequency division multiplexing communication system 有权
标题翻译：在正交频分复用通信系统中用于下行链路资源分配的方法和装置
公开(公告)号：US08073062B2
公开(公告)日：2011-12-06
申请号：US12023054
申请日：2008-01-31
申请人： Brian K. Classon , Kevin L. Baum , Amitava Ghosh , Robert T. Love , Vijay Nangia , Rapeepat Ratasuk , Weimin Xiao
发明人： Brian K. Classon , Kevin L. Baum , Amitava Ghosh , Robert T. Love , Vijay Nangia , Rapeepat Ratasuk , Weimin Xiao
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L5/0007 , H04L5/0032 , H04L5/0039 , H04L5/0044 , H04L27/2601 , H04W72/1205
摘要： A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.
摘要翻译：提供了在同一频道中调度分布式虚拟资源块（DVRB）和本地化虚拟资源块（LVRB）的通信，从而在最小化上行链路反馈开销的同时获得频率选择性调度的优点。在本发明的一个实施例中，通信系统向给定LVRB的每个用户设备（UE）分配多个下行链路物理资源块（PRB）的一个或多个下行链路物理资源块（PRB），以产生至少一个保留的PRB和多个非并且为给定DVRB的UE分配多个非保留PRB的每个PRB的一部分。在本发明的另一个实施例中，通信系统将为局部传输预先预留的PRB分配给被调度用于LVRB的UE，并且为给定DVRB的每个UE分配预先分配的传输的多个PRB的一部分。

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