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31. 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.

32. 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。

33. 发明授权

US09237434B2 Network-assisted peer discovery with network coding 有权
标题翻译：网络辅助对等体发现与网络编码
公开(公告)号：US09237434B2
公开(公告)日：2016-01-12
申请号：US13546629
申请日：2012-07-11
申请人： Siddhartha Mallik , Andrea Munari , Naga Bhushan
发明人： Siddhartha Mallik , Andrea Munari , Naga Bhushan
IPC分类号： H04L12/28 , H04W8/00 , H04W48/10
CPC分类号： H04W8/005 , H04W48/10
摘要： Techniques for performing network-assisted peer discovery with network coding are disclosed. For peer discovery with network coding, a device may generate a network-coded message based on a message assigned to the device and one or more messages received by the device from other devices. The device may transmit a proximity detection signal including the network-coded message. For network-assisted peer discovery with network coding, the device may register with a network for peer discovery and may be provided with at least one parameter to use for peer discovery with network coding. The devices may perform peer discovery with network coding in accordance with the peer discovery parameter(s) received from the network. The device may generate a network-coded message based on the at least one peer discovery parameter and may transmit the network-coded message to enable other devices to detect the device.
摘要翻译：公开了使用网络编码执行网络辅助对等体发现的技术。对于具有网络编码的对等体发现，设备可以基于分配给该设备的消息和该设备从其他设备接收到的一个或多个消息来生成网络编码消息。设备可以发送包括网络编码消息的接近检测信号。对于使用网络编码的网络辅助对等体发现，设备可以向网络注册以进行对等体发现，并且可以提供至少一个参数以用于具有网络编码的对等体发现。设备可以根据从网络接收到的对等体发现参数来执行具有网络编码的对等体发现。所述设备可以基于所述至少一个对等体发现参数生成网络编码的消息，并且可以发送所述网络编码消息以使得其他设备能够检测所述设备。

34. 发明授权

US09136953B2 Interference estimation for wireless communication 有权
标题翻译：无线通信干扰估计
公开(公告)号：US09136953B2
公开(公告)日：2015-09-15
申请号：US13196711
申请日：2011-08-02
申请人： Taesang Yoo , Tao Luo , Yongbin Wei , Siddhartha Mallik
发明人： Taesang Yoo , Tao Luo , Yongbin Wei , Siddhartha Mallik
IPC分类号： H04B17/345
CPC分类号： H04B17/345
摘要： Interference on pilot signals and on data tones can be mismatched. Different types of interference estimates perform differently based on how the mismatch occurs. The resulting interference estimate may thus be inaccurate. Interference estimates based on pilot signals and also on data tones can both be evaluated for reliability. The more reliable of the two can then be selected. If the data tones estimate is selected, the estimate can be calculated from covariance matrices or from traffic-to-pilot ratios.
摘要翻译：对导频信号和数据音调的干扰可能不匹配。基于不匹配的发生情况，不同类型的干扰估计可以不同地执行。所得到的干扰估计可能是不准确的。可以对可靠性进行评估，基于导频信号和数据音调的干扰估计。然后可以选择更可靠的两个。如果选择数据音调估计，则可以从协方差矩阵或从业务到导频比来计算估计。

35. 发明授权

US08817924B2 Iterative pilot tone cancellation for improved channel estimation and decoding 有权
标题翻译：用于改进信道估计和解码的迭代导频消除
公开(公告)号：US08817924B2
公开(公告)日：2014-08-26
申请号：US13237469
申请日：2011-09-20
申请人： Siddhartha Mallik , Taesang Yoo , Tao Luo
发明人： Siddhartha Mallik , Taesang Yoo , Tao Luo
IPC分类号： H03D1/04 , H04B7/00
CPC分类号： H04L25/0224
摘要： Channel estimation is performed in a wireless network through cell/antenna pair ranking and iterative soft cancellation of pilot signals. Cell classification and ordering may be ranked and grouped for purposes of improving performance by dedicating hardware resources to higher priority received signals. A metric may be computed to rank the pairs. One such metric is reference signal (RS) power. Pairs may also be grouped into groups of pairs. Groups may be ordered by time-frequency resource and designated as serving-cell groups or non-serving cell groups. Higher priority pairs may be assigned a higher number of iterations. Higher priority groups may be processed first. Pairs which fall below a certain power threshold may be assigned no iterations. Iterations are distributed among hardware blocks to improve processing efficiency. Iteration numbers and hardware assignments may be modified to reach a desired complexity constraint.
摘要翻译：通过小区/天线对排序和导频信号的迭代软消除在无线网络中执行信道估计。为了通过将硬件资源专用于较高优先级的接收信号来提高性能，可以对信元分类和排序进行排序和分组。可以计算度量来对对进行排序。一个这样的度量是参考信号（RS）功率。对也可以分组成对。组可以按时间频率资源排序并指定为服务小区组或非服务小区组。较高优先级对可以分配更多的迭代次数。优先级较高的组可以先处理。低于一定功率阈值的对可以不被分配。迭代分布在硬件块之间，以提高处理效率。可以修改迭代数和硬件分配以达到期望的复杂度约束。

36. 发明申请

US20130044697A1 NETWORK COORDINATION FOR IMPROVED INTERFERENCE CANCELLATION 有权
标题翻译：网络协调改善干扰消除
公开(公告)号：US20130044697A1
公开(公告)日：2013-02-21
申请号：US13364891
申请日：2012-02-02
申请人： Taesang Yoo , Hendrik Schoeneich , Myriam Rajih , Tao Luo , Siddhartha Mallik
发明人： Taesang Yoo , Hendrik Schoeneich , Myriam Rajih , Tao Luo , Siddhartha Mallik
IPC分类号： H04B15/00 , H04W52/04 , H04W72/08
CPC分类号： H04W72/082 , H04L1/0003 , H04L1/0606
摘要： Communications by base stations in wireless communication networks may be coordinated in a manner to improve performance by mobile devices experiencing interference from non-serving base stations. In particular, base station communications may be coordinated to improve the performance of interference cancellation by mobile devices. If a user equipment (UE) experiencing interference is capable of interference cancellation, then the base stations may coordinate to increase interference to that user equipment so as to improve that UE's ability to perform interference cancellation. Base stations may also coordinate to reduce interference for a UE, regardless of the UE's ability to perform interference cancellation. Mobile device performance improvements may also be achieved by coordinating scheduling of resources by the non-serving base stations, by using communication formats compatible with interference cancellation, by spatial coordination.
摘要翻译：无线通信网络中的基站的通信可以以改善经历来自非服务基站的干扰的移动设备的性能的方式进行协调。特别地，可以协调基站通信以改善移动设备的干扰消除的性能。如果遇到干扰的用户设备（UE）能够进行干扰消除，则基站可以进行协调，以增加对该用户设备的干扰，从而提高UE执行干扰消除的能力。无论UE是否执行干扰消除的能力，基站还可以协调以减少对UE的干扰。还可以通过使用通过空间协调使用与干扰消除相兼容的通信格式来协调非服务基站的资源调度来实现移动设备性能改进。

37. 发明申请

US20120314655A1 DATA TRANSMISSION AND RECEPTION WITH HARQ AND NETWORK CODING 审中-公开
标题翻译：数据传输和接收HARQ和网络编码
公开(公告)号：US20120314655A1
公开(公告)日：2012-12-13
申请号：US13493828
申请日：2012-06-11
申请人： FENG XUE , Stefan Brueck , Siddhartha Mallik , Kiran K. Somasundaram , Christian Pietsch
发明人： FENG XUE , Stefan Brueck , Siddhartha Mallik , Kiran K. Somasundaram , Christian Pietsch
IPC分类号： H04W40/00
CPC分类号： H04L1/1819 , H04L1/0076 , H04L1/1845 , H04L1/1887 , H04L25/067 , H04L2001/0093
摘要： Techniques for transmitting and receiving data with hybrid automatic retransmission (HARQ) and network coding via block operation are disclosed. In one design, a transmitter transmits a first block of packets to multiple receivers and receives ACK/NAK feedback for the first block of packets from the receivers. The transmitter identifies candidate packets for network coding based on the ACK/NAK feedback. A pool of candidate packets changes over time as more ACK/NAK feedback for transmitted packets is received from the receivers. The transmitter generates at least one network-coded packet based on the candidate packets. Each network-coded packet may be generated by channel coding each of at least two packets and combining the at least two packets after channel coding. The transmitter transmits another block of packets to the receivers. This block includes the at least one network-coded packet and may also include pending packets and/or new packets.
摘要翻译：公开了利用混合自动重传（HARQ）和通过块操作的网络编码来发送和接收数据的技术。在一种设计中，发射机将多个分组的第一块发送到多个接收机，并且从接收机接收第一个分组块的ACK / NAK反馈。发射机基于ACK / NAK反馈识别用于网络编码的候选分组。候选分组池随着时间的推移而改变，因为从接收机接收到更多的发送分组的ACK / NAK反馈。发射机基于候选分组生成至少一个网络编码分组。可以通过对至少两个分组中的每一个进行信道编码来生成每个网络编码分组，并且在信道编码之后组合至少两个分组。发射机向接收机发送另一个数据包。该块包括至少一个网络编码分组，并且还可以包括未决分组和/或新分组。

38. 发明申请

US20110305179A1 PEER-TO-PEER COMMUNICATION WITH SYMMETRIC WAVEFORM FOR DOWNLINK AND UPLINK 有权
标题翻译：具有对称波形的对等通信用于下行链路和上行链路
公开(公告)号：US20110305179A1
公开(公告)日：2011-12-15
申请号：US13154645
申请日：2011-06-07
申请人： Renqiu Wang , Ravi Palanki , Naga Bhushan , Siddhartha Mallik
发明人： Renqiu Wang , Ravi Palanki , Naga Bhushan , Siddhartha Mallik
IPC分类号： H04W4/00 , H04W52/02
CPC分类号： H04L1/1692 , H04L1/0031 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L25/0224 , H04W76/14
摘要： Techniques for supporting peer-to-peer (P2P) communication are disclosed. In an aspect, P2P communication may be supported with a symmetric waveform for a P2P downlink and a P2P uplink. In one design, a first UE generates a first signal based on a particular waveform (e.g., a downlink waveform or an uplink waveform for a wireless network) and transmits the first signal to a second UE for P2P communication. The first UE also receives a second signal generated by the second UE based on the particular waveform and transmitted to the first UE for P2P communication. In another aspect, a proximity detection signal may be transmitted in a portion of a subframe instead of the entire subframe. The remaining portion of the subframe may be used to transmit control information and/or other information to support P2P communication.
摘要翻译：披露了用于支持点对点（P2P）通信的技术。在一方面，P2P通信可以以P2P下行链路和P2P上行链路的对称波形来支持。在一种设计中，第一UE基于特定波形（例如，下行链路波形或无线网络的上行链路波形）生成第一信号，并将第一信号发送到第二UE进行P2P通信。第一UE还基于特定波形接收由第二UE生成的第二信号，并发送给第一UE进行P2P通信。另一方面，可以在子帧的一部分而不是整个子帧中发送接近检测信号。子帧的剩余部分可以用于发送控制信息和/或其他信息以支持P2P通信。

39. 发明申请

US20100034146A1 METHOD AND APPARATUS FOR SUPPORTING MULTI-USER AND SINGLE-USER MIMO IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中支持多用户和单用户MIMO的方法和装置
公开(公告)号：US20100034146A1
公开(公告)日：2010-02-11
申请号：US12536366
申请日：2009-08-05
申请人： Jilei Hou , John E. Smee , Durga Prasad Malladi , Navid Hassanpour Ghady , Siddhartha Mallik
发明人： Jilei Hou , John E. Smee , Durga Prasad Malladi , Navid Hassanpour Ghady , Siddhartha Mallik
IPC分类号： H04W40/00
CPC分类号： H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0626 , H04B7/0639
摘要： Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.
摘要翻译：描述了用于支持分布式多输入多输出（MIMO）传输的技术。在一种设计中，用户设备（UE）确定多个小区的信道估计并报告信道估计。 UE然后基于信道估计来接收由多个小区发送到UE的数据传输。数据传输可以包括至少一个数据流，并且每个数据流可以由一个小区或多个小区发送到UE。在另一种设计中，UE分别为第一和第二小区确定第一和第二信道估计，并报告信道估计。然后，UE基于第一信道估计来接收第一小区向UE发送的第一数据传输。 UE还接收由第二小区发送到另一个UE的第二数据传输，并且基于第二信道估计导向远离UE。

40. 发明授权

US09497765B2 Network coordination for improved interference cancellation 有权
标题翻译：网络协调，改善干扰消除
公开(公告)号：US09497765B2
公开(公告)日：2016-11-15
申请号：US13364891
申请日：2012-02-02
申请人： Taesang Yoo , Hendrik Schoeneich , Myriam Rajih , Tao Luo , Siddhartha Mallik
发明人： Taesang Yoo , Hendrik Schoeneich , Myriam Rajih , Tao Luo , Siddhartha Mallik
IPC分类号： H04W4/00 , H04W72/08 , H04L1/00 , H04L1/06
CPC分类号： H04W72/082 , H04L1/0003 , H04L1/0606
摘要： Communications by base stations in wireless communication networks may be coordinated in a manner to improve performance by mobile devices experiencing interference from non-serving base stations. In particular, base station communications may be coordinated to improve the performance of interference cancellation by mobile devices. If a user equipment (UE) experiencing interference is capable of interference cancellation, then the base stations may coordinate to increase interference to that user equipment so as to improve that UE's ability to perform interference cancellation. Base stations may also coordinate to reduce interference for a UE, regardless of the UE's ability to perform interference cancellation. Mobile device performance improvements may also be achieved by coordinating scheduling of resources by the non-serving base stations, by using communication formats compatible with interference cancellation, by spatial coordination.
摘要翻译：无线通信网络中的基站的通信可以以改善经历来自非服务基站的干扰的移动设备的性能的方式进行协调。特别地，可以协调基站通信以改善移动设备的干扰消除的性能。如果遇到干扰的用户设备（UE）能够进行干扰消除，则基站可以进行协调，以增加对该用户设备的干扰，从而提高UE执行干扰消除的能力。无论UE是否执行干扰消除的能力，基站还可以协调以减少对UE的干扰。还可以通过使用通过空间协调使用与干扰消除兼容的通信格式来协调非服务基站的资源调度来实现移动设备性能改进。

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