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31.发明授权Systems and methods to define control channels using reserved resource blocks 有权使用保留的资源块来定义控制信道的系统和方法公开(公告)号：US09107239B2
公开(公告)日：2015-08-11
申请号：US12419022
申请日：2009-04-06
CPC分类号： H04W72/0406 , H04L5/0073 , H04W16/14 , H04W72/042 , H04W72/044 , H04W88/06 , H04W88/10
摘要： Systems and methodologies are described that facilitate defining new control channels in legacy wireless networks. Control data resources for new systems can be defined over resources reserved for general data communications in the legacy wireless network specification. In this regard, legacy devices can still be supported by devices implementing new control data resources, and the new control data resources can avoid substantial interference that is typically exhibited over legacy control and/or reference signal resources by instead using the general data resources. In addition, new system devices can avoid scheduling data communication resources over the new control resources to create a substantially non-interfered global control segment. Control data can be transmitted over the segment using beacon-based technologies, reuse schemes, and/or the like.
摘要翻译： 描述了有助于在传统无线网络中定义新的控制信道的系统和方法。 可以通过在传统无线网络规范中为一般数据通信保留的资源来定义新系统的控制数据资源。 在这方面，传统设备仍然可以由实现新的控制数据资源的设备支持，并且新的控制数据资源可以通过代替使用通用数据资源来避免典型地通过传统控制和/或参考信号资源展现的实质性干扰。 此外，新的系统设备可以避免在新的控制资源上调度数据通信资源，以创建基本上不受干扰的全局控制段。 控制数据可以使用基于信标的技术，重用方案和/或类似方式在段上传输。
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公开(公告)号：US09042296B2
公开(公告)日：2015-05-26
申请号：US12841051
申请日：2010-07-21
申请人： Ravi Palanki , Aamod D. Khandekar , Peter Gaal
发明人： Ravi Palanki , Aamod D. Khandekar , Peter Gaal
CPC分类号： H04W56/0045 , H04W56/0015 , H04W92/20
摘要： Techniques for synchronizing devices in a wireless network are described. In an aspect, a device determines a receive time for a base station, obtains a time offset for the base station from a network entity, and sets its transmit time based on the receive time and the time offset for the base station. The time offset compensates for the degree by which the base station is asynchronous with respect to a reference time, e.g., UTC time. In another aspect, a device determines and sends time difference information (e.g., a time offset or a TDOA measurement) for at least one base station to support synchronization of other devices. In yet another aspect, a network entity supports synchronization of devices, receives time difference information for at least one base station, and determines at least one time offset for the at least one base station based on the time difference information.
摘要翻译： 描述了用于在无线网络中同步设备的技术。 在一方面，设备确定基站的接收时间，从网络实体获得基站的时间偏移，并且基于基站的接收时间和时间偏移来设置其发送时间。 时间偏移补偿基站相对于参考时间（例如，UTC时间）是异步的程度。 在另一方面，设备确定并发送至少一个基站的时差信息（例如，时间偏移或TDOA测量）以支持其他设备的同步。 在另一方面，网络实体支持设备的同步，接收至少一个基站的时差信息，并且基于时差信息确定至少一个基站的至少一个时间偏移量。
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33.发明授权公开(公告)号：US09009573B2
公开(公告)日：2015-04-14
申请号：US12360556
申请日：2009-01-27
申请人： Ravi Palanki , Naga Bhushan , Dexu Lin , Aamod D. Khandekar
发明人： Ravi Palanki , Naga Bhushan , Dexu Lin , Aamod D. Khandekar
CPC分类号： H04L1/0065 , H04L5/0053
摘要： Methods, apparatuses, and computer program products are disclosed for encoding/decoding a wireless control signal. For encoding, control bits are received and encoded with a first error control code so as to create a first set of encoded bits. The encoded bits are then encoded with a second error control code so as to create a second set of encoded bits, which are modulated as beacon tones and subsequently transmitted. For decoding, beacon tones corresponding to a set of control bits are received and subsequently demodulated so as to ascertain a set of demodulated bits. The demodulated bits are then decoded with a decoder so as to ascertain a set of decoded bits. The decoded bits are then decoded with a second decoder so as to ascertain a second set of decoded bits, which includes the set of control bits.
摘要翻译： 公开了用于对无线控制信号进行编码/解码的方法，装置和计算机程序产品。 对于编码，控制位被接收并用第一错误控制代码编码，以便创建第一组编码位。 然后用第二错误控制码对编码的比特进行编码，以便产生第二组编码比特，这些比特被调制为信标音调并且随后被发送。 对于解码，对应于一组控制位的信标音调被接收并随后进行解调，以便确定一组解调位。 然后解码的比特用解码器解码，以便确定一组解码的比特。 然后用第二解码器解码解码的比特，以便确定包括该组控制比特的第二组解码比特。
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34.发明授权公开(公告)号：US08982750B2
公开(公告)日：2015-03-17
申请号：US12686260
申请日：2010-01-12
申请人： Ravi Palanki , Juan Montojo , Aamod D. Khandekar , Tao Luo , Kapil Bhattad
发明人： Ravi Palanki , Juan Montojo , Aamod D. Khandekar , Tao Luo , Kapil Bhattad
CPC分类号： H04W28/0284 , H04B7/0617 , H04J11/005 , H04L1/0041 , H04L1/0072 , H04L5/0007 , H04L5/0053 , H04L7/041 , H04L27/2613 , H04W56/001 , H04W72/0453
摘要： Techniques for transmitting overload indicators over the air to UEs in neighbor cells are described. In one design, an overload indicator may be transmitted as a phase difference between at least one synchronization signal and a reference signal for a cell. In another design, an overload indicator may be transmitted as a phase difference between consecutive transmissions of at least one synchronization signal for a cell. In yet another design, an overload indicator may be transmitted by a cell on resources reserved for transmitting the overload indicator. In yet another design, an overload indicator may be transmitted by a cell on a low reuse channel or a broadcast channel. For all designs, a UE may receive overload indicators from neighbor cells, determine the loading of each neighbor cell based on the overload indicator for that cell, and control its operation based on the loading of the neighbor cells.
摘要翻译： 描述了在空中向相邻小区中的UE发送过载指示符的技术。 在一种设计中，过载指示符可以作为小区的至少一个同步信号和参考信号之间的相位差发送。 在另一种设计中，可以将过载指示符作为用于小区的至少一个同步信号的连续传输之间的相位差发送。 在另一种设计中，过载指示符可以由小区在保留用于发送过载指示符的资源上发送。 在另一种设计中，过载指示符可以由低重用信道或广播信道上的小区发送。 对于所有设计，UE可以从相邻小区接收过载指示符，基于该小区的过载指示符确定每个相邻小区的负载，并且基于相邻小区的加载来控制其操作。
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35.发明授权公开(公告)号：US08675537B2
公开(公告)日：2014-03-18
申请号：US12417364
申请日：2009-04-02
申请人： Aamod D. Khandekar , Juan Montojo , Naga Bhushan , Ravi Palanki , Tingfang Ji
发明人： Aamod D. Khandekar , Juan Montojo , Naga Bhushan , Ravi Palanki , Tingfang Ji
CPC分类号： H04W72/082 , H04L1/0002 , H04L1/0026 , H04L5/0023 , H04L5/005 , H04L5/0051 , H04L5/0057 , H04W52/143 , H04W52/244 , H04W52/325 , H04W72/005
摘要： Techniques for sending information in a wireless network are described. The network may support (i) regular subframes used to send unicast information and (ii) multicast/broadcast single frequency network (MBSFN) subframes used to send broadcast information and having lower overhead than the regular subframes. In an aspect, MBSFN subframes may be used to mitigate interference. A first base station may cause high interference to stations (e.g., UEs) served by a second base station. The first base station may reserve a subframe for the second base station, send system information conveying the reserved subframe as an MBSFN subframe to its stations, and transmit in a first part of the reserved subframe in accordance with an MBSFN subframe format. The second base station may skip the first part and may send unicast information to its stations in the remaining part of the reserved subframe. In another aspect, MBSFN subframes may be used to support additional base station capabilities.
摘要翻译： 描述了在无线网络中发送信息的技术。 网络可以支持（i）用于发送单播信息的常规子帧和（ii）用于发送广播信息并且具有比常规子帧低的开销的多播/广播单频网络（MBSFN）子帧。 在一方面，MBSFN子帧可以用于减轻干扰。 第一基站可能对由第二基站服务的站（例如，UE）造成高干扰。 第一基站可以为第二基站预留子帧，向其站发送传送保留子帧作为MBSFN子帧的系统信息，并根据MBSFN子帧格式在保留子帧的第一部分中进行发送。 第二基站可以跳过第一部分，并且可以在保留的子帧的剩余部分中向其站发送单播信息。 在另一方面，可以使用MBSFN子帧来支持附加的基站能力。
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公开(公告)号：US08559908B2
公开(公告)日：2013-10-15
申请号：US12482885
申请日：2009-06-11
申请人： Jing Sun , Aamod D. Khandekar , Tingfang Ji
发明人： Jing Sun , Aamod D. Khandekar , Tingfang Ji
IPC分类号： H04M11/00
CPC分类号： H04W16/10 , H04L5/0007 , H04L5/0032 , H04L5/0071 , H04W16/06 , H04W72/0406
摘要： A wireless communication network uses backhaul negotiation based upon static and dynamic resource assignment on jamming graphs. Static reuse factor design methods including fractional frequency reuse (FFR) are addressed. The jamming graph is used to summarize the interfering relationship between transmitters (nodes in the jamming graph). Negotiation-based algorithm is used to arrive at a static resource assignment so that a large reuse factor can be achieved while jamming scenario can be avoided. As a result of such algorithm, each transmitter is assigned some resources, over which traffic transmission can be done instantaneously to reduce the packet delay for short packets. Based on the result of static resource negotiation algorithm, a dynamic resource algorithm can be run, such that the resources assigned to different nodes can be share in a bursty traffic scenario to further reduce packet delay for larger packet size cases, while jamming be also avoided.
摘要翻译： 无线通信网络使用基于干扰图上的静态和动态资源分配的回程协商。 包括分数频率复用（FFR）在内的静态重用因子设计方法得到了解决。 干扰图用于总结发射机（干扰图中的节点）之间的干扰关系。 使用基于谈判的算法来获得静态资源分配，从而可以避免干扰情况下实现大的重用因子。 作为这种算法的结果，每个发射机被分配一些资源，可以通过该资源瞬时完成业务传输以减少短分组的分组延迟。 基于静态资源协商算法的结果，可以运行动态资源算法，使得分配给不同节点的资源可以在突发流量场景中共享，以进一步减小较大分组大小情况下的分组延迟，同时也避免干扰 。
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公开(公告)号：US20130028296A1
公开(公告)日：2013-01-31
申请号：US13192003
申请日：2011-07-27
IPC分类号： H04B1/707
CPC分类号： H04B1/7075 , H04B2001/70724 , H04B2201/70707 , H04B2201/70713 , H04B2201/70727
摘要： A UE may store received samples of a wireless signal at cx1 to reduce memory usage, but then may correlate those samples with cx2 timing hypotheses to improve performance. The received sequence is resampled at cx2 instead of cx1. The UE still performs the correlation of the cx2 timing hypotheses for the performance gain, but the reference waveform is resampled with cx2 time offset. A Fast Fourier Transform (FFT) may be taken of the received and reference waveforms. In the frequency domain, resampling may be performed by multiplying the FFT of the reference waveform by a phase ramp—a pointwise multiplication in the frequency domain with a constant magnitude sequence whose phase varies linearly.
摘要翻译： UE可以以cx1存储无线信号的接收样本以减少存储器使用，但是然后可以将这些采样与cx2定时假设相关联以提高性能。 接收的序列在cx2而不是cx1重采样。 UE仍然执行cx2定时假设与性能增益的相关性，但参考波形用cx2时间偏移重采样。 可以对接收和参考波形进行快速傅里叶变换（FFT）。 在频域中，重采样可以通过将参考波形的FFT乘以频域中的相位斜坡 - 点相乘乘以其相位线性变化的恒定幅度序列来执行。
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公开(公告)号：US08213405B2
公开(公告)日：2012-07-03
申请号：US12354666
申请日：2009-01-15
申请人： Gavin B. Horn , Aamod D. Khandekar , Parag A. Agashe , Lei Xiao , Ravi Palanki
发明人： Gavin B. Horn , Aamod D. Khandekar , Parag A. Agashe , Lei Xiao , Ravi Palanki
IPC分类号： H04J3/06
CPC分类号： H04J3/0679 , H04J3/0641
摘要： Systems and methodologies are described that facilitate synchronizing timing among wireless nodes in a wireless communication network. A tracking wireless node can synchronize to a global positioning system (GPS) signal if available. Alternatively, the tracking wireless node can receive quality metrics related to one or more target nodes. The quality metrics can relate to parameters that can be utilized to evaluate the target node for timing synchronization. Based on the quality metrics, the tracking wireless node can select a target wireless node for timing synchronization. The tracking wireless node can subsequently synchronize timing with the target wireless node. In addition, the tracking wireless node can continually evaluate surrounding wireless nodes to detect whether other wireless nodes have higher quality metrics than the current target wireless nodes and can accordingly resynchronize with nodes having higher metrics.
摘要翻译： 描述了有助于在无线通信网络中的无线节点之间同步定时的系统和方法。 跟踪无线节点可以与全球定位系统（GPS）信号同步，如果可用的话。 或者，跟踪无线节点可以接收与一个或多个目标节点相关的质量度量。 质量度量可以与可用于评估目标节点进行定时同步的参数相关。 基于质量度量，跟踪无线节点可以选择目标无线节点进行定时同步。 跟踪无线节点可以随后与目标无线节点同步定时。 此外，跟踪无线节点可以连续地评估周围的无线节点以检测其他无线节点是否具有比当前目标无线节点更高的质量度量，并且可以相应地与具有较高度量的节点重新同步。
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公开(公告)号：US20100234061A1
公开(公告)日：2010-09-16
申请号：US12722433
申请日：2010-03-11
IPC分类号： H04B7/00
CPC分类号： H04W52/243 , H04W52/146 , H04W52/241 , H04W52/242 , H04W52/54 , H04W52/58
摘要： Methods, systems, apparatus and computer program products are provided to facilitate power control in wireless communication systems. A cell that is experiencing excessive interference conditions may generate an over-the-air overload indicator indicative of interference conditions at the cell. The over-the-air overload indicator is received by one or more user equipment in a neighboring cell. In response, the user equipment determines adjustments to its transmit power that reduce and/or eliminate the interference. This determination may be carried out by the user equipment, by the serving base station, or through cooperation between the user equipment and the serving base station. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
摘要翻译： 提供方法，系统，装置和计算机程序产品以便于无线通信系统中的功率控制。 正在经历过多干扰条件的小区可能会产生指示小区干扰情况的空中过载指示器。 空中过载指示符由相邻小区中的一个或多个用户设备接收。 作为响应，用户设备确定减少和/或消除干扰的其发射功率的调整。 该确定可以由用户设备，服务基站或者通过用户设备与服务基站之间的协作进行。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。
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公开(公告)号：US20100008315A1
公开(公告)日：2010-01-14
申请号：US12498467
申请日：2009-07-07
申请人： Ravi Palanki , Aamod D. Khandekar , Naga Bhushan
发明人： Ravi Palanki , Aamod D. Khandekar , Naga Bhushan
IPC分类号： H04W28/00
CPC分类号： H04W72/082
摘要： Techniques for sending control information in a wireless network are described. In an aspect, a hierarchical control channel structure may be used, a first group of control channels may be sent in a low reuse segment, and a second group of control channels may be sent in a non-reuse segment. In another aspect, a first control channel is sent in the low reuse segment and is used to configure a second control channel sent in the non-reuse segment so that the second control channel can be reliably received in dominant interference scenarios. In one design, a first base station sends a first message on a first control channel to a user equipment (UE). The UE sends a second message to an interfering base station to request it to reduce interference to a second control channel. The first base station sends control information on the second control channel to the UE.
摘要翻译： 描述用于在无线网络中发送控制信息的技术。 在一方面，可以使用分级控制信道结构，可以在低重用段中发送第一组控制信道，并且可以在非重用段中发送第二组控制信道。 在另一方面，第一控制信道在低重用段中被发送，并且用于配置在非重用段中发送的第二控制信道，使得可以在主要干扰场景中可靠地接收第二控制信道。 在一种设计中，第一基站在第一控制信道上向用户设备（UE）发送第一消息。 UE向干扰基站发送第二消息以请求它减少对第二控制信道的干扰。 第一基站向UE发送关于第二控制信道的控制信息。
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