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公开(公告)号：US08886113B2
公开(公告)日：2014-11-11
申请号：US12643853
申请日：2009-12-21
CPC分类号： H04B7/155 , H04B7/2606 , H04W72/02 , H04W72/085 , H04W88/04 , H04W92/18
摘要： Techniques for centralized control of relay operation are described. In an aspect, a designated network entity (e.g., a base station or a network controller) may control the operation of relay stations within its coverage area. The network entity may select certain user equipments (UEs) to be relay UEs that can serve as relay stations for other UEs, e.g., based on pathloss between the UEs and a base station, the locations of the UEs, battery power levels of the UEs, fairness considerations, etc. The network entity may also select a specific relay UE to serve as a relay station for a client UE desiring to communicate with a base station, e.g., based on pilot measurements from relay UEs for the client UE. The network entity may also control transmission of discovery pilots by relay UEs and/or client UEs for relay detection.
摘要翻译： 描述了中继操作的集中控制技术。 一方面，指定的网络实体（例如，基站或网络控制器）可以控制其覆盖区域内的中继站的操作。 网络实体可以选择某些用户设备（UE）作为可以用作其他UE的中继站的中继UE，例如，基于UE和基站之间的路径损耗，UE的位置，UE的电池功率级别 公平考虑等。网络实体还可以选择特定的中继UE作为用于希望与基站进行通信的客户机UE的中继站，例如，基于来自用于客户端UE的中继UE的导频测量。 网络实体还可以控制中继UE和/或客户端用于继电器检测的发现导频的传输。
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2.发明授权Systems, apparatus and methods to facilitate physical cell identifier collision detection 有权用于促进物理小区标识符冲突检测的系统，装置和方法公开(公告)号：US08401033B2
公开(公告)日：2013-03-19
申请号：US12722290
申请日：2010-03-11
CPC分类号： H04W48/08
摘要： Systems, apparatus, methods and computer program products for facilitating collision detection are provided. In some embodiments, a method can include: receiving identifying information during one or more time intervals from a plurality of base stations; determining whether at least two different values of the identifying information from the plurality of base stations have been transmitted during the same time interval; and determining that a collision has occurred between at least two of the plurality of base stations in response to determining that the at least two different values of the identifying information from the plurality of base stations have been transmitted during the same time interval.
摘要翻译： 提供了用于促进碰撞检测的系统，装置，方法和计算机程序产品。 在一些实施例中，一种方法可以包括：在多个基站的一个或多个时间间隔期间接收识别信息; 确定在所述相同时间间隔期间是否已经发送了来自所述多个基站的识别信息的至少两个不同值; 以及响应于确定来自所述多个基站的所述识别信息的所述至少两个不同值已经在相同的时间间隔期间被发送，确定在所述多个基站中的至少两个基站之间发生冲突。
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公开(公告)号：US09226300B2
公开(公告)日：2015-12-29
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
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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4.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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5.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：US20100039948A1
公开(公告)日：2010-02-18
申请号：US12359612
申请日：2009-01-26
CPC分类号： H04W72/082 , H04W24/10
摘要： Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.
摘要翻译： 描述了用于管理无线网络中的干扰的技术。 基站可以从用户设备（UE）接收增强的导频测量报告，并且可以基于所接收的报告进行干扰管理决定。 基站可以基于从UE接收的增强型导频测量报告来选择用于UE的服务基站。 基站可以在相邻基站处确定具有低目标干扰电平的资源，并且可以避免在资源上调度UE用于上行链路传输。 基站还可以基于邻近基站的数据性能来确定是否为相邻基站预留资源，邻近基站是否观察到来自基站所服务的UE的高干扰，或者是由相邻基站服务的UE 观察来自基站的高干扰，其可以基于增强的导频测量报告来确定。
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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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8.发明授权公开(公告)号：US09294219B2
公开(公告)日：2016-03-22
申请号：US12568255
申请日：2009-09-28
申请人： Ravi Palanki , Kapil Bhattad , Naga Bhushan , Aamod D. Khandekar , Tingfang Ji , Juan Montojo
发明人： Ravi Palanki , Kapil Bhattad , Naga Bhushan , Aamod D. Khandekar , Tingfang Ji , Juan Montojo
CPC分类号： H04L1/0023 , H04B7/15557 , H04B7/2606 , H04J3/08 , H04L1/0001 , H04L5/0037 , H04W4/06 , H04W28/00
摘要： Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a base station may transmit data to a relay station in a portion of a subframe instead of the entire subframe. The relay station may transmit control information during part of the subframe. The base station may transmit data to the relay station during the remaining part of the subframe. In another aspect, a target termination for a packet may be selected based on data and/or ACK transmission opportunities available for the packet. One or more transmissions of the packet may be sent with HARQ, and ACK information may be sent for the packet. The packet may be transmitted such that it can be terminated prior to the first subframe (i) not available for sending the packet or (ii) available for sending ACK information.
摘要翻译： 描述了用于支持无线通信系统中的中继站的操作的技术。 在一方面，基站可以在子帧的一部分而不是整个子帧中向中继站发送数据。 中继站可以在子帧的一部分期间发送控制信息。 基站可以在子帧的剩余部分期间向中继站发送数据。 在另一方面，可以基于可用于分组的数据和/或ACK传输机会来选择分组的目标终止。 可以用HARQ发送分组的一个或多个传输，并且可以为分组发送ACK信息。 可以发送分组，使得其可以在第一子帧（i）不可用于发送分组之前终止，或者（ii）可用于发送ACK信息。
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公开(公告)号：US09265048B2
公开(公告)日：2016-02-16
申请号：US12483623
申请日：2009-06-12
申请人： Ashwin Sampath , Aamod D. Khandekar , Alexei Y. Gorokhov , Mohammad J. Borran , Naga Bhushan , Ravi Palanki
发明人： Ashwin Sampath , Aamod D. Khandekar , Alexei Y. Gorokhov , Mohammad J. Borran , Naga Bhushan , Ravi Palanki
IPC分类号： H04W72/08
CPC分类号： H04W72/082
摘要： Systems and methodologies are described that facilitate indicating a dominant interferer to a target serving base station in a wireless communication environment. A mobile device can detect presence or absence of a dominant interferer. Further, an access probe that includes information related to the presence or absence of the dominant interferer can be generated. For example, the information can be included in a payload of the access probe as an explicit flag, an explicit indication of an interference level, a Channel Quality Indicator (CQI) value (e.g., reserved versus non-reserved, . . . ), etc. Moreover, the access probe can be transmitted to the target serving base station to initiate an access procedure. The target serving base station can select a time-frequency resource to be utilized for a responsive downlink transmission (e.g. access grant signal, subsequent access related message, . . . ) as a function of the information included in the access probe.
摘要翻译： 描述了有助于在无线通信环境中向目标服务基站指示主要干扰源的系统和方法。 移动设备可以检测显着干扰源的存在或不存在。 此外，可以生成包括与显着干扰源的存在或不存在有关的信息的访问探针。 例如，信息可以包括在接入探测器的有效载荷中作为显式标志，干扰级别的显式指示，信道质量指示符（CQI）值（例如，保留与非保留的...）， 此外，可以将接入探针发送到目标服务基站以发起接入过程。 目标服务基站可以根据包括在接入探测器中的信息来选择要用于响应下行链路传输（例如接入许可信号，后续接入相关消息，...）的时间 - 频率资源。
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10.发明授权公开(公告)号：US09203564B2
公开(公告)日：2015-12-01
申请号：US12580872
申请日：2009-10-16
申请人： Ravi Palanki , Kapil Bhattad , Naga Bhushan , Aamod D. Khandekar , Tingfang Ji , Juan Montojo
发明人： Ravi Palanki , Kapil Bhattad , Naga Bhushan , Aamod D. Khandekar , Tingfang Ji , Juan Montojo
CPC分类号： H04L1/1867 , H04B7/2606
摘要： Techniques for supporting data transmission via a relay station are described. In an aspect, data transmission may be supported using ACK-and-suspend. A transmitter station sends a first transmission of a packet to a receiver station. The transmitter station receives no ACK information for the first transmission of the packet and suspends transmission of the packet. The transmitter station thereafter receives an indication to resume transmission of the packet and, in response, sends a second transmission of the packet. In another aspect, different ACK timeline may be used when applicable. The receiver station may send ACK information in a designated subframe if available for use or in a different subframe. In yet another aspect, ACK repetition may be used. The receiver may send ACK information in multiple subframes to facilitate reception of the ACK information when the transmitter station is unable to receive one or more of the multiple subframes.
摘要翻译： 描述了通过中继站支持数据传输的技术。 在一方面，可以使用ACK和挂起来支持数据传输。 发送站发送分组的第一次发送到接收站。 发送台不接收用于分组的第一次发送的ACK信息，并且暂停分组的发送。 然后，发送站接收到恢复分组的发送的指示，并且作为响应，发送分组的第二发送。 在另一方面，当适用时可以使用不同的ACK时间线。 接收站可以在指定的子帧中发送ACK信息，如果可以使用或在不同的子帧中。 在另一方面，可以使用ACK重复。 接收机可以在多个子帧中发送ACK信息，以便当发射机站不能接收多个子帧中的一个或多个时，接收ACK信息。
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