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公开(公告)号：US07054346B2
公开(公告)日：2006-05-30
申请号：US09850124
申请日：2001-05-07
IPC分类号： H04B1/69
CPC分类号： H04B1/7143 , H04B2001/7154
摘要： A wireless endpoint employs frequency hopping for communicating signals in a wireless communications system. Over a time period T, the wireless endpoint performs pseudo-random selection of a frequency from a hopping set of N frequencies such that over at least a portion of the time period T, the frequency selection is constrained to less than the N frequencies.
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72.发明授权公开(公告)号：US06996083B1
公开(公告)日：2006-02-07
申请号：US09650792
申请日：2000-08-30
CPC分类号： H04B7/2643
摘要： A method and system for reducing delay in wireless communications by use of a burst based access and assignment system. The method for setting up a communication channel uses short burst(s) (essentially a slot of a time frame). Time is saved by keeping the uplink and downlink channels flexible and independent of each other. Thus less time is used trying to fit all requests and responses into constrained choices as in previous protocols. The result is less delay to the mobile user and greater usage density for the wireless service provider.
摘要翻译： 一种通过使用基于突发的接入和分配系统来减少无线通信延迟的方法和系统。 用于建立通信信道的方法使用短突发（基本上是时间帧的时隙）。 通过保持上行链路和下行链路信道彼此灵活和独立来节省时间。 因此，像以前的协议一样，尝试将所有请求和响应都设置为约束选择的时间更少。 结果是对于移动用户的延迟较小，并且无线服务提供商的使用密度更高。
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公开(公告)号：US20050180374A1
公开(公告)日：2005-08-18
申请号：US10778191
申请日：2004-02-17
申请人： Krishna Balachandran , Tingfang Ji , Joseph Kang , Wei Luo , Hsuan-Jung Su
发明人： Krishna Balachandran , Tingfang Ji , Joseph Kang , Wei Luo , Hsuan-Jung Su
CPC分类号： H04L27/2608 , H04B1/713
摘要： Information is transmitted over selected, Orthogonal Frequency Division Multiplexed (OFDM) sub-channels to avoid frequencies with unacceptable congestion, noise or interference levels. Using frequency hopping, selected non-contiguous OFDM sub-channels used for transmission may vary with time. Once a group of OFDM sub-channels is selected, a power level and modulation technique may also be selected based on channel quality.
摘要翻译： 信息通过选定的正交频分复用（OFDM）子信道传输，以避免具有不可接受的拥塞，噪声或干扰电平的频率。 使用跳频，用于传输的所选非连续OFDM子信道可随时间变化。 一旦选择了一组OFDM子信道，也可以基于信道质量来选择功率电平和调制技术。
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74.发明授权System and method for link and media access control layer transaction initiation procedures 有权链接和媒体访问控制层事务发起程序的系统和方法公开(公告)号：US06625133B1
公开(公告)日：2003-09-23
申请号：US09283312
申请日：1999-03-31
申请人： Krishna Balachandran , Richard P. Ejzak , Sanjiv Nanda , Shiv M. Seth , Stanley Vitebsky , William Waung
发明人： Krishna Balachandran , Richard P. Ejzak , Sanjiv Nanda , Shiv M. Seth , Stanley Vitebsky , William Waung
IPC分类号： H04Q738
CPC分类号： H04L29/06 , H04L1/0003 , H04L1/0025 , H04L1/1819 , H04L69/32 , H04L69/324
摘要： A system and method of implementing a radio link protocol and dynamic partial echo management for a transaction oriented packet data communication system. A data backlog is described with a media access control layer controller and transmitting a BEGIN protocol data unit transmitted to a receiver. A media access control layer transaction is initiated in response to the transmitting of the BEGIN frame.
摘要翻译： 一种为面向事务的分组数据通信系统实现无线电链路协议和动态部分回声管理的系统和方法。 用媒体访问控制层控制器描述数据积压，并发送传输到接收器的BEGIN协议数据单元。 响应于BEGIN帧的发送，发起媒体访问控制层事务。
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75.发明授权Apparatus and methods for improving the assignment of parallel demodulators to multipaths of wireless signals 有权用于改进并行解调器到无线信号多径的分配的装置和方法公开(公告)号：US06532222B1
公开(公告)日：2003-03-11
申请号：US09186765
申请日：1998-11-05
申请人： Kiran Meghashyam Rege , Krishna Balachandran , Kirk Kuokuang Chang , Zhendong Cao , Abdulkadir Dinc , Yogendra Champaklal Shah
发明人： Kiran Meghashyam Rege , Krishna Balachandran , Kirk Kuokuang Chang , Zhendong Cao , Abdulkadir Dinc , Yogendra Champaklal Shah
IPC分类号： H04B7216
CPC分类号： H04B17/327
摘要： Demodulator assignment logic is provided that confirms the presence and quality of a multipath before assigning a parallel demodulator to that multipath. Multipath presence and quality are confirmed when at least two power measurements of a multipath at least equal a selectable power threshold. Before permitting demodulated data from an assigned demodulator to be processed, demodulator assignment logic further reconfirms the presence and quality of a multipath via another more reliable power measurement that at least equals another selectable power threshold.
摘要翻译： 提供了解调器分配逻辑，在将并行解调器分配给该多路径之前，确认多路径的存在和质量。 当多路径的至少两个功率测量至少等于可选择的功率阈值时，确认多路径存在和质量。 在允许来自分配的解调器的解调数据被处理之前，解调器分配逻辑还通过至少等于另一可选功率阈值的另一更可靠的功率测量进一步重新确认多路径的存在和质量。
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76.发明授权System and method for measuring channel quality information in a communication system 失效用于测量通信系统中信道质量信息的系统和方法公开(公告)号：US06215827B1
公开(公告)日：2001-04-10
申请号：US09044636
申请日：1998-03-19
IPC分类号： H04L2302
CPC分类号： H04L1/0015 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0054 , H04L1/006 , H04L1/12 , H04L1/20 , H04W36/30 , H04W72/08
摘要： A system and method to measure channel quality in terms of signal to interference plus noise ratio for the transmission of coded signals over fading channels in a communication system. A Viterbi decoder metric for the Maximum Likelihood path is used as a channel quality measure for coherent and non-coherent transmission schemes. This Euclidean distance metric is filtered in order to smooth out short term variations. The filtered or averaged metric is a reliable channel quality measure which remains consistent across different coded modulation schemes speeds. The filtered metric is mapped to the signal to interference plus noise ratio per symbol using a threshold based scheme. Use of this implicit signal to interference plus noise ratio estimate is used for the mobile assisted handoff in a cellular system, power control and data rate adaptation in the transmitter.
摘要翻译： 一种用于在通信系统中通过衰落信道传输编码信号的信噪比加噪声比来测量信道质量的系统和方法。 用于最大似然路径的维特比解码器度量用作相干和非相干传输方案的信道质量测量。 过滤欧几里德距离度量以平滑短期变化。 滤波或平均的度量是可靠的信道质量度量，其在不同的编码调制方案速度下保持一致。 使用基于阈值的方案将经滤波的度量映射到每个符号的信号与干扰加噪声比。 使用这种隐含信号对干扰加噪声比估计用于蜂窝系统中的移动辅助切换，发射机中的功率控制和数据速率适配。
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公开(公告)号：US10341994B2
公开(公告)日：2019-07-02
申请号：US15081171
申请日：2016-03-25
摘要： The present disclosure generally discloses an autonomous wireless transmission mechanism. The autonomous wireless transmission mechanism may be configured to support autonomous transmissions by wireless end devices to wireless access nodes in a connectionless manner. In general, an autonomous wireless transmission by a wireless end device may include transmission of a preamble in a preamble transmission zone and autonomous transmission of a payload over one or more resource units of one or more payload transmission zones without requiring establishment of a connection between the wireless end device and the wireless access node. The autonomous wireless transmission mechanism, by obviating the need for a wireless end device to establish a connection with a wireless access node in order to transmit data to the wireless access node, also obviates a need for the wireless end device to operate in a scheduled transmission mode.
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公开(公告)号：US20170280438A1
公开(公告)日：2017-09-28
申请号：US15081171
申请日：2016-03-25
CPC分类号： H04W72/0413 , H04W4/06 , H04W72/048 , H04W74/004 , H04W74/006 , H04W76/10
摘要： The present disclosure generally discloses an autonomous wireless transmission mechanism. The autonomous wireless transmission mechanism may be configured to support autonomous transmissions by wireless end devices to wireless access nodes in a connectionless manner. In general, an autonomous wireless transmission by a wireless end device may include transmission of a preamble in a preamble transmission zone and autonomous transmission of a payload over one or more resource units of one or more payload transmission zones without requiring establishment of a connection between the wireless end device and the wireless access node. The autonomous wireless transmission mechanism, by obviating the need for a wireless end device to establish a connection with a wireless access node in order to transmit data to the wireless access node, also obviates a need for the wireless end device to operate in a scheduled transmission mode.
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79.发明授权Distributed multi-cell successive interference cancellation for uplink cellular networks 有权用于上行蜂窝网络的分布式多小区连续干扰消除公开(公告)号：US09397866B2
公开(公告)日：2016-07-19
申请号：US12232303
申请日：2008-09-15
CPC分类号： H04L25/03012 , H04B7/024 , H04J11/004 , H04J11/0053 , H04L5/0035 , H04L5/0058 , H04L5/0073 , H04L2025/03802
摘要： Example embodiments are directed to methods of reducing inter-cell interference in wireless networks using successive interference cancellation (SIC). Example embodiments use inter-cell cooperation between cells and/or sectors to successfully decode their associated users' data signals and pass on the decoded data signals to other cells/sectors in order to reduce inter-cell interference and allow for improved decoding of users' data signals. Example embodiments include passing the decoded data signals via the backhaul. Example embodiments also include static and dynamic ordering of user data signals in conjunction with the application of SIC.
摘要翻译： 示例性实施例涉及使用连续干扰消除（SIC）来减少无线网络中的小区间干扰的方法。 示例性实施例使用小区和/或扇区之间的小区间协作来成功解码其相关联的用户的数据信号，并将解码的数据信号传递到其他小区/扇区，以便减少小区间干扰并允许用户改进的解码， 数据信号。 示例性实施例包括经由回程传递解码的数据信号。 示例性实施例还包括结合SIC的应用的用户数据信号的静态和动态排序。
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公开(公告)号：US08296617B2
公开(公告)日：2012-10-23
申请号：US12380379
申请日：2009-02-25
IPC分类号： H04L1/18
CPC分类号： H04L1/1887 , H04L1/1812
摘要： A method for implementation of HARQ between a transmitting node and a receiving node in a communication network is provided. HARQ processes may be selected from a list for instantiation according to a policy that may deviate from strict first-in, first-out processing of packets. The greater flexibility that this affords may lead to improved efficiency in the use of transmission resources.
摘要翻译： 提供了一种用于在通信网络中的发送节点和接收节点之间实现HARQ的方法。 可以根据可能偏离分组的严格先进先出处理的策略从用于实例化的列表中选择HARQ进程。 这种提供的更大的灵活性可能会提高传输资源的使用效率。
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