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1. 发明授权

US10517098B2 Interference coordination for peer-to-peer (P2P) communication and wide area network (WAN) communication 有权
公开(公告)号：US10517098B2
公开(公告)日：2019-12-24
申请号：US13188146
申请日：2011-07-21
申请人： Stefan Geirhofer , Naga Bhushan , Ravi Palanki , Jaber Mohammad Borran , Aleksandar Damnjanovic
发明人： Stefan Geirhofer , Naga Bhushan , Ravi Palanki , Jaber Mohammad Borran , Aleksandar Damnjanovic
IPC分类号： H04W16/02 , H04W72/08 , H04W52/24
摘要： Techniques for supporting peer-to-peer (P2P) communication in a wide area network (WAN) are disclosed. In an aspect, interference coordination between P2P devices engaged in P2P communication and WAN devices engaged in WAN communication may be performed based on a network-controlled architecture. For the network-controlled architecture, P2P devices may detect other P2P devices and/or WAN devices and may send measurements (e.g., for pathloss, interference, etc.) for the detected devices to the WAN (e.g., serving base stations). The WAN may perform resource partitioning and/or association for the P2P devices based on the measurements. Association may include selection of P2P communication or WAN communication for a given P2P device. Resource partitioning may include allocation of resources to a group of P2P devices for P2P communication. The WAN may send the results of association and/or resource partitioning to the P2P devices, which may communicate in accordance with the association and/or resource partitioning results.

2. 发明授权

US10250678B2 Hybrid modes for peer discovery 有权
公开(公告)号：US10250678B2
公开(公告)日：2019-04-02
申请号：US13046157
申请日：2011-03-11
申请人： Siddhartha Mallik , Ravi Palanki , Durga Prasad Malladi , Naga Bhushan
发明人： Siddhartha Mallik , Ravi Palanki , Durga Prasad Malladi , Naga Bhushan
IPC分类号： G06F15/173 , H04L29/08 , H04W8/00
摘要： Techniques for performing peer discovery in a wireless network are described. A device may perform peer discovery to detect and identify other devices of interest. In an aspect, the device may perform peer discovery based on a hybrid mode that includes autonomous peer discovery and network-assisted peer discovery. In another aspect, the device may perform peer discovery based on a push mode and a pull mode. For the push mode, the device may occasionally transmit and/or receive a peer detection signal. For the pull mode, the device may transmit and/or receive a peer discovery request when triggered. In yet another aspect, the device may perform event-triggered peer discovery (e.g., for the pull mode). In yet another aspect, the device may perform peer discovery using both a downlink spectrum and an uplink spectrum. In yet another aspect, the device may transmit a peer detection signal in a manner to improve detection and/or increase payload.

3. 发明授权

US09673952B2 Method and apparatus for supporting user equipments on different system bandwidths 有权
公开(公告)号：US09673952B2
公开(公告)日：2017-06-06
申请号：US12756847
申请日：2010-04-08
申请人： Wanshi Chen , Peter Gaal , Juan Montojo , Ravi Palanki
发明人： Wanshi Chen , Peter Gaal , Juan Montojo , Ravi Palanki
IPC分类号： H04L5/00 , H04L1/18 , H04L1/00 , H04W72/04
CPC分类号： H04L5/0053 , H04L1/0026 , H04L1/1812 , H04L1/1854 , H04L5/0007 , H04L2001/0093 , H04W72/04 , H04W72/0453
摘要： Techniques for supporting communication for different user equipments (UEs) on different system bandwidths are described. In one design, a base station transmits first control information to support communication for at least one first UE on a first system bandwidth and transmits second control information to support communication for at least one second UE on a second system bandwidth, which overlaps the first system bandwidth. The base station transmits data to the first and second UEs on the first and second system bandwidths, respectively. In one design, the base station receives third control information from the first UE(s) and fourth control information from the second UE(s) on a third system bandwidth. The base station receives data from the first UE(s) on the third system bandwidth and receives data from the second UE(s) on a fourth system bandwidth, which overlaps the third system bandwidth.

4. 发明授权

US09584290B2 Multiple carrier activation/deactivation in wireless communications 有权
标题翻译：无线通信中的多载波激活/去激活
公开(公告)号：US09584290B2
公开(公告)日：2017-02-28
申请号：US12953356
申请日：2010-11-23
申请人： Rajat Prakash , Jelena M. Damnjanovic , Peter Gaal , Parag Arun Agashe , Valentin Alexandru Gheorghiu , Masato Kitazoe , Ravi Palanki
发明人： Rajat Prakash , Jelena M. Damnjanovic , Peter Gaal , Parag Arun Agashe , Valentin Alexandru Gheorghiu , Masato Kitazoe , Ravi Palanki
IPC分类号： H04W72/04 , H04L5/00 , H04W72/00 , H04W72/02
CPC分类号： H04L5/0064 , H04L5/0023 , H04L5/0037 , H04L5/0087 , H04L5/0098 , H04W72/00 , H04W72/02
摘要： Systems, methods and apparatuses are provided that facilitate selecting resources, such as time slots, subframes, etc., for performing bandwidth switching related to activating and/or deactivating one or more carriers. A data portion of one or more subframes can be selected for performing bandwidth switching. In addition, a device can determine whether one or more downlink grants are received in the one or more subframes, and can avoid selecting such subframes. The device can alternatively perform the bandwidth switching and request retransmission of the data portion. Additionally or alternatively, the device can determine a type of the one or more subframes and/or signals transmitted in the one or more subframes to determine whether to perform bandwidth switching in the subframes. The bandwidth switching can include changing a sampling rate, reconfiguring frequency filters, modifying a local oscillator, etc.
摘要翻译：提供了系统，方法和装置，其便于选择诸如时隙，子帧等的资源，用于执行与激活和/或去激活一个或多个载体相关的带宽切换。可以选择一个或多个子帧的数据部分来执行带宽切换。此外，设备可以确定在一个或多个子帧中是否接收到一个或多个下行链路许可，并且可以避免选择这样的子帧。该设备可替代地执行带宽切换并请求数据部分的重传。附加地或替代地，设备可以确定在一个或多个子帧中发送的一个或多个子帧和/或信号的类型，以确定是否在子帧中执行带宽切换。带宽切换可以包括改变采样率，重新配置频率滤波器，修改本地振荡器等。

5. 发明授权

US09516686B2 Method and apparatus for establishing and maintaining peer-to-peer (P2P) communication on unlicensed spectrum 有权
标题翻译：在非许可频谱上建立和维护对等（P2P）通信的方法和装置
公开(公告)号：US09516686B2
公开(公告)日：2016-12-06
申请号：US13046176
申请日：2011-03-11
申请人： Alan Barbieri , Naga Bhushan , Ravi Palanki , Peter Gaal
发明人： Alan Barbieri , Naga Bhushan , Ravi Palanki , Peter Gaal
IPC分类号： H04W72/04 , H04W24/00 , H04W36/30 , H04W76/02
CPC分类号： H04W76/023 , H04W36/06 , H04W36/36 , H04W76/14
摘要： Techniques for establishing and maintaining peer-to-peer (P2P) communication are described. In an aspect, P2P communication on an unlicensed spectrum may be established and maintained with network assistance. In one design, a user equipment (UE) may communicate with a wide area network (WAN) to establish P2P communication with at least one other UE on a first frequency band that is not licensed to the WAN. For example, the UE may receive an assignment of at least one frequency channel in the first frequency band for P2P communication. The UE may then communicate peer-to-peer with the other UE(s) on the at least one frequency channel. The UE may also communicate with the WAN to maintain P2P communication with the other UE(s), e.g., to switch to another frequency channel if necessary.
摘要翻译：描述了用于建立和维护对等（P2P）通信的技术。在一方面，可以通过网络协助建立和维护非许可频谱上的P2P通信。在一种设计中，用户设备（UE）可以与广域网（WAN）进行通信，以便在未向WAN许可的第一频带上与至少一个其他UE建立P2P通信。例如，UE可以接收用于P2P通信的第一频带中的至少一个频率信道的分配。然后，UE可以在至少一个频率信道上与其他UE进行点对点通信。 UE还可以与WAN通信以保持与其他UE的P2P通信，例如，如果需要，切换到另一个频率信道。

6. 发明授权

US09485069B2 Transmission and reception of proximity detection signal for peer discovery 有权
标题翻译：用于对等体发现的接近检测信号的发送和接收
公开(公告)号：US09485069B2
公开(公告)日：2016-11-01
申请号：US13085337
申请日：2011-04-12
申请人： Renqiu Wang , Siddhartha Mallik , Ravi Palanki , Naga Bhushan , Tao Luo , Durga Prasad Malladi
发明人： Renqiu Wang , Siddhartha Mallik , Ravi Palanki , Naga Bhushan , Tao Luo , Durga Prasad Malladi
IPC分类号： H04B7/208 , H04L5/00 , H04W8/00 , H04W56/00 , H04W72/00 , H04W76/02 , H04W92/18
CPC分类号： H04W8/005 , H04L5/0053 , H04L67/104 , H04W4/02 , H04W56/002 , H04W56/0025 , H04W72/00 , H04W72/0453 , H04W76/10 , H04W92/18
摘要： Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.
摘要翻译：公开了用于执行对等体发现以实现对等（P2P）通信的技术。在一方面，可以基于在无线网络中使用的一个或多个物理信道和/或信号来生成用于对等体发现的接近检测信号。在一种设计中，用户设备（UE）可以基于SC-FDMA调制技术生成占用至少一个资源块的接近检测信号。在另一种设计中，UE可以基于OFDMA调制技术生成占用至少一个资源块的接近检测信号。 UE可以针对不同的物理信道以不同的方式生成SC-FDMA符号或OFDMA符号。在又一设计中，UE可以产生包括主同步信号和次同步信号的接近检测信号。对于所有设计，UE可以发送接近检测信号以指示其存在并使其他UE能够检测UE。

7. 发明授权

US09432991B2 Enabling support for transparent relays in wireless communication 有权
标题翻译：支持无线通信中的透明中继
公开(公告)号：US09432991B2
公开(公告)日：2016-08-30
申请号：US12763742
申请日：2010-04-20
申请人： Aamod Dinkar Khandekar , Ravi Palanki , Alexei Yurievitch Gorokhov
发明人： Aamod Dinkar Khandekar , Ravi Palanki , Alexei Yurievitch Gorokhov
IPC分类号： H04W72/00 , H04B7/14 , H04W72/04 , H04B7/26 , H04W72/12 , H04W84/04
CPC分类号： H04W72/121 , H04B7/0632 , H04B7/14 , H04B7/2606 , H04L5/005 , H04L5/14 , H04L25/0202 , H04W52/146 , H04W72/0433 , H04W72/0466 , H04W72/1289 , H04W84/047
摘要： Providing for improved implementation of supplemental wireless nodes in a wireless base station deployment is described herein. By way of example, a donor base station is configured to send a schedule of data transmission to and from a set of UEs served by the base station, and further can provide the schedule and identifiers for the set of UEs to one or more wireless nodes serving the base station. Respective access channel measurements between respective UEs and respective wireless nodes can be forwarded to the base station, which in turn can identify optimal access channels for the set of UEs. Additionally, the donor base station can schedule multiple data transmissions on these access channels in a common transmission time slot, to achieve cell-splitting gains for the data transmissions. Range boosting, differential coding, and supplemental channel quality mechanisms are also provided for various wireless communication arrangements described herein.
摘要翻译：本文描述了在无线基站部署中提供补充无线节点的改进实现。作为示例，施主基站被配置为向基站所服务的一组UE发送数据传输和从一组UE发送调度表，并且还可以向一组或多个无线节点提供该组UE的调度和标识符为基站服务。各个UE和各个无线节点之间的相应的接入信道测量可以被转发到基站，基站又可以识别该组UE的最佳接入信道。此外，施主基站可以在公共传输时隙中在这些接入信道上调度多个数据传输，以实现数据传输的小区分解增益。还提供了范围增强，差分编码和补充信道质量机制用于本文描述的各种无线通信布置。

8. 发明授权

US09265049B2 Method and apparatus for using uplink control information for inter-cell decoding and interference cancellation 有权
标题翻译：使用上行链路控制信息进行小区间解码和干扰消除的方法和装置
公开(公告)号：US09265049B2
公开(公告)日：2016-02-16
申请号：US12498468
申请日：2009-07-07
申请人： Ravi Palanki , Alexei Y. Gorokhov , Naga Bhushan
发明人： Ravi Palanki , Alexei Y. Gorokhov , Naga Bhushan
IPC分类号： H04W72/08 , H04W48/08 , H04W72/04 , H04B7/02
CPC分类号： H04W72/082 , H04B7/022 , H04B2201/70702 , H04W48/08 , H04W72/0406
摘要： Techniques for supporting data transmission on the uplink in a wireless network are described. In an aspect, a user equipment (UE) may send a data transmission to a serving base station and may send uplink control information (UCI) to a non-serving base station. The UCI may include pertinent information to allow the non-serving base station to process the data transmission from the UE. In one design, the UCI may allow the non-serving base station to estimate the interference due to the data transmission from the UE and to cancel the interference at the non-serving base station. The interference cancellation may improve the received signal quality at the non-serving base station. After the interference cancellation, the non-serving base station may process a data transmission from another UE served by the base station.
摘要翻译：描述了用于在无线网络中的上行链路上支持数据传输的技术。在一方面，用户设备（UE）可以向服务基站发送数据传输，并且可以向非服务基站发送上行链路控制信息（UCI）。 UCI可以包括允许非服务基站处理来自UE的数据传输的相关信息。在一种设计中，UCI可以允许非服务基站估计由于来自UE的数据传输的干扰并且消除在非服务基站处的干扰。干扰消除可以改善非服务基站处的接收信号质量。在干扰消除之后，非服务基站可以处理来自基站服务的另一个UE的数据传输。

9. 发明授权

US09225495B2 Data transmission with cross-subframe control in a wireless network 有权
标题翻译：在无线网络中进行跨子帧控制的数据传输
公开(公告)号：US09225495B2
公开(公告)日：2015-12-29
申请号：US13572660
申请日：2012-08-12
申请人： Ravi Palanki , Aamod Dinkar Khandekar , Kapil Johannes Richard Bhattad
发明人： Ravi Palanki , Aamod Dinkar Khandekar , Kapil Johannes Richard Bhattad
IPC分类号： H04L5/00
CPC分类号： H04L5/0091 , H04L5/0053 , H04L5/0055 , Y02D70/122 , Y02D70/124 , Y02D70/126 , Y02D70/14
摘要： Techniques for supporting communication in dominant interference scenarios are described. In an aspect, communication in a dominant interference scenario may be supported with cross-subframe control. Different base stations may be allocated different subframes for sending control information. Each base station may send control messages in the subframes allocated to that base station. Different base stations may have different timelines for sending control messages due to their different allocated subframes. With cross-subframe control, control information (e.g., grants, acknowledgement, etc.) may be sent in a first subframe and may be applicable for data transmission in a second subframe, which may be a variable number of subframes from the first subframe. In another aspect, messages to mitigate interference may be sent on a physical downlink control channel (PDCCH).
摘要翻译：描述了在主要干扰场景中支持通信的技术。在一方面，可以通过跨子帧控制来支持主要干扰场景中的通信。可以为不同的基站分配不同的子帧以发送控制信息。每个基站可以在分配给该基站的子帧中发送控制消息。不同的基站可能具有不同的时间线，用于由于其不同的分配子帧而发送控制消息。利用跨子帧控制，可以在第一子帧中发送控制信息（例如，授权，确认等），并且可以适用于第二子帧中的数据传输，其可以是来自第一子帧的可变数量的子帧。在另一方面，可以在物理下行链路控制信道（PDCCH）上发送用于减轻干扰的消息。

10. 发明授权

US09125163B2 Persistent interference mitigation in a wireless communication 有权
标题翻译：无线通信中的持续干扰减轻
公开(公告)号：US09125163B2
公开(公告)日：2015-09-01
申请号：US12262576
申请日：2008-10-31
申请人： Ravi Palanki , Aamod Khandekar , Naga Bhushan
发明人： Ravi Palanki , Aamod Khandekar , Naga Bhushan
IPC分类号： H04B1/00 , H04W52/32 , H04W52/24 , H04W72/08 , H04B7/06 , H04W72/04
CPC分类号： H04W74/0816 , H04B7/0617 , H04L5/0048 , H04W52/241 , H04W52/325 , H04W72/0426 , H04W72/046 , H04W72/08 , H04W72/082 , H04W72/14 , H04W88/02 , H04W88/08
摘要： Techniques for transmitting data with persistent interference mitigation in a wireless communication system are described. A station (e.g., a base station or a terminal) may observe high interference and may send a request to reduce interference to interfering stations. The request may be valid for a time period covering multiple response periods. Each interfering station may grant or dismiss the request in each response period, may dismiss the request by transmitting at full power, and may grant the request by transmitting at lower than full power. The station may receive a response from each interfering station indicating grant or dismissal of the request by that interfering station in each response period. The station may estimate SINR based on the response received from each interfering station and may exchange data with another station based on the estimated SINR. Persistent interference mitigation may reduce signaling overhead and improve resource utilization and performance.
摘要翻译：描述了在无线通信系统中传输具有持续干扰减轻的数据的技术。站（例如，基站或终端）可以观察到高干扰，并且可以发送减少对干扰站的干扰的请求。该请求可以在覆盖多个响应周期的时间段内有效。每个干扰站可以在每个响应周期中授权或者解除请求，可以通过全功率发射来解除请求，并且可以以低于全功率的方式发送请求。站点可以从每个干扰站接收指示在每个响应周期中该干扰站的请求的授权或解除的响应。该站可以基于从每个干扰站接收到的响应估计SINR，并且可以基于估计的SINR与另一个站交换数据。持续的干扰减轻可以减少信令开销并提高资源利用率和性能。

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