公开(公告)号：EP1695477B1

公开(公告)日：2011-10-26

申请号：EP04814424.0

申请日：2004-12-15

申请人： Qualcomm, Incorporated

发明人： WALTON, Jay Rodney ,  ZHENG, Lizhong ,  KETCHUM, John W. ,  WALLACE, Mark S. ,  HOWARD, Steven J.

IPC分类号： H04L1/06

CPC分类号： H04B7/0417 ,  H04B7/0456 ,  H04B7/0669 ,  H04B17/336 ,  H04L1/06

摘要： Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≧1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.

公开(公告)号：EP1695489A1

公开(公告)日：2006-08-30

申请号：EP04801075.5

申请日：2004-11-15

申请人： QUALCOMM INCORPORATED

发明人： WALTON, J. Rodney ,  KETCHUM, John W.

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04Q7/38 ,  H04L1/00 ,  H04L27/26 ,  H04L1/06 ,  H04B7/26

CPC分类号： H04L1/06 ,  H04B7/2643 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/16 ,  H04L25/0204 ,  H04L27/261 ,  H04L2001/0093 ,  H04W24/02 ,  H04W28/18 ,  H04W72/0406 ,  H04W72/14 ,  H04W84/12

摘要： According to one aspect of the invention, a method is provided in which a control channel used for transmitting control information is partitioned into a plurality of subchannels each of which is operated at a specific data rate. For each of one or more user terminals, one of the subchannels is selected based on one or more selection criteria for transmitting control information from an access point to the respective user terminal. Control information is transmitted from the access point to a user terminal on a particular subchannel selected for the respective user terminal. At the user terminal, one or more subchannels are decoded to obtain control information designated for the user terminal.

摘要翻译： 。根据本发明的一个方面，提供了一种方法，其中，用于发送控制信息的控制信道被划分为每一个所有其在一个特定的数据率工作的子信道的多元性。 对于每一个的一个或多个用户终端，所述子信道中的一个是基于用于在接入点从传输控制信息到用户终端respectivement一个或多个选择标准来选择。 控制信息是从接入点到用户终端上选择用于respectivement用户终端特定子信道反mitted。 在用户终端，一个或多个子信道进行解码，以获得指定为所述用户终端的控制信息。

公开(公告)号：EP3032806B1

公开(公告)日：2018-03-14

申请号：EP16154430.9

申请日：2010-08-11

申请人： Qualcomm Incorporated

发明人： WALTON, Jay Rodney ,  KETCHUM, John W. ,  MICHAELIS, Oliver

IPC分类号： H04L29/08 ,  H04W88/04 ,  H04W84/18 ,  H04W8/00 ,  H04W48/08

CPC分类号： H04L29/06326 ,  H04L67/04 ,  H04L67/16 ,  H04L67/18 ,  H04W4/00 ,  H04W48/08 ,  H04W48/16 ,  H04W76/20 ,  H04W92/18

摘要： Certain embodiments of the present disclosure relate to a method and an apparatus for managing and optimizing service discovery in a peer-to-peer (P 2 P) wireless network. Nodes of the P 2 P network advertise their capabilities to their peers in the form of services. Efficient propagation and management of node's services to other nodes is proposed in the present disclosure. An embodiment relates in particular to a method for wireless node in a peer-to-peer (P 2 P) network, comprising: receiving one or more advertisements of services offered by one or more other wireless nodes in the P 2 P network; generating a prioritized list of services, based on one or more services offered by the wireless node and services listed in the received advertisements of services; and distributing the prioritized list of services to other wireless nodes in the P 2 P network.

公开(公告)号：EP2494767A1

公开(公告)日：2012-09-05

申请号：EP10778768.1

申请日：2010-10-30

申请人： Qualcomm Incorporated

发明人： WALTON, J. Rodney ,  KETCHUM, John W.

IPC分类号： H04L29/08 ,  H04W48/16 ,  H04W84/18

CPC分类号： H04W48/16 ,  H04L67/104 ,  H04L67/1068 ,  H04L67/16 ,  H04W8/005 ,  H04W84/18

摘要： Certain embodiments of the present disclosure relate to a method for improving the effective coverage of nodes within a peer-to-peer (P2P) wireless network. Collection of nodes of the P2P network can have a larger aggregate coverage footprint than any given single node. This inherent multi-site property of P2P wireless networks can be exploited to provide each node with benefits of multi-user diversity, thus improving discovery of devices in the P2P network.

摘要翻译： 本公开的某些实施例涉及用于改善对等（P2P）无线网络内的节点的有效覆盖的方法。 P2P网络节点的集合可以具有比任何给定的单个节点更大的聚合覆盖范围。 可以利用P2P无线网络的固有多站点属性为每个节点提供多用户分集的优点，从而改善P2P网络中设备的发现。

公开(公告)号：EP2486756A1

公开(公告)日：2012-08-15

申请号：EP10766445.0

申请日：2010-10-06

申请人： Qualcomm Incorporated

发明人： MICHAELIS, Oliver ,  WALTON, J. Rodney ,  KETCHUM, John W.

IPC分类号： H04W48/16

CPC分类号： H04W48/16

摘要： Certain embodiments of the present disclosure relate to a method and an apparatus for registration and service announcements in peer-to-peer wireless networks to increase capacity of such networks. The present disclosure proposes a hybrid registration mechanism allowing a peer-to-peer node to leverage an administrative architecture of a neighboring cellular system.

公开(公告)号：EP1556980B1

公开(公告)日：2012-07-11

申请号：EP03781558.6

申请日：2003-10-24

申请人： QUALCOMM INCORPORATED

发明人： WALTON, J. Rodney ,  KETCHUM, John W. ,  WALLACE, Mark S. ,  HOWARD, Steven J.

IPC分类号： H04L1/00

CPC分类号： H04L5/0048 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0628 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0854 ,  H04B7/0871 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04L25/0226 ,  H04L25/0248 ,  H04L25/0256 ,  H04L25/03955 ,  H04L25/03968 ,  H04W16/28 ,  H04W52/50

摘要： A user terminal supports multiple spatial multiplexing (SM) modes such as a steered mode and a non-steered mode. For data transmission, multiple data streams are coded and modulated in accordance with their selected rates to obtain multiple data symbol streams. These streams are then spatially processed in accordance with a selected SM mode (e.g., with a matrix of steering vectors for the steered mode and with the identity matrix for the non-steered mode) to obtain multiple transmit symbol streams for transmission from multiple antennas. For data reception, multiple received symbol streams are spatially processed in accordance with the selected SM mode (e.g., with a matrix of eigenvectors for the steered mode and with a spatial filter matrix for the non-steered mode) to obtain multiple recovered data symbol streams. These streams are demodulated and decoded in accordance with their selected rates to obtain multiple decoded data streams.

公开(公告)号：EP1476958B1

公开(公告)日：2008-07-09

申请号：EP03709263.2

申请日：2003-02-19

申请人： QUALCOMM INCORPORATED

发明人： MEDVEDEV, Irina ,  WALTON, Jay R. ,  KETCHUM, John W.

IPC分类号： H04B7/005 ,  H04B7/04

CPC分类号： H04B7/0417 ,  H04B7/0619 ,  H04L1/0001 ,  H04L1/06 ,  H04W52/42

摘要： Techniques for controlling the transmit power for a number of data streams in a wireless multi-channel (e.g., MIMO) communication system. In one method, a number of received symbol streams are initially processed in accordance with a particular (e.g., CCMI, CCMI-SC, MMSE, or MMSE-SC) receiver processing technique to provide a number of detected data streams. The post-detection SNRs of the detected data streams are estimated, and each SNR that exceeds a setpoint is identified. This setpoint may correspond to (1) the SNR needed to achieve the maximum allowed spectral efficiency or (2) the target SNR needed to achieve a specified spectral efficiency. A new (or adjusted) transmit power for each detected data stream associated with a post-detection SNR that exceeds the setpoint is determined and used for the data stream. Different power control schemes are provided for different classes of receiver processing techniques with different characteristics.

公开(公告)号：EP1557003A2

公开(公告)日：2005-07-27

申请号：EP03781527.1

申请日：2003-10-24

申请人： Qualcomm, Incorporated

发明人： WALTON, J. Rodney ,  KETCHUM, John W. ,  WALLACE, Mark ,  HOWARD, Steven J.

IPC分类号： H04L12/28 ,  H04Q7/38

CPC分类号： H04W74/0833 ,  H04B7/0413 ,  H04B7/043 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0854 ,  H04L1/0001 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/08 ,  H04L1/16 ,  H04L25/0224 ,  H04L25/0226 ,  H04L25/0242 ,  H04L25/03343 ,  H04L27/2601 ,  H04L27/2602 ,  H04L27/261 ,  H04L27/2647 ,  H04L2001/0093 ,  H04W28/20 ,  H04W52/50 ,  H04W74/002 ,  H04W74/08 ,  H04W74/0866 ,  H04W88/06

摘要： Techniques for facilitating random access in wireless multiple-access communication systems. A random access channel (RACH) is defined to comprise a 'fast' RACH (F-RACH) and a 'slow' RACH (S-RACH). The F-RACH and S-RACH can efficiently support user terminals in different operating states and employ different designs. The F-RACH can be used to quickly access the system, and the S-RACH is more robust and can support user terminals in various operating states and conditions. The F-RACH may be used by user terminals that have registered with the system and can compensate for their round trip delays (RTDs) by properly advancing their transmit timing. The S-RACH may be used by user terminals that may or may not have registered with the system, and may or may not be able to compensate for their RTDs. The user terminals may use the F-RACH or S-RACH, or both, to gain access to the system.

公开(公告)号：EP2471244B1

公开(公告)日：2016-04-06

申请号：EP10747117.9

申请日：2010-08-11

申请人： QUALCOMM Incorporated

发明人： MICHAELIS, Oliver ,  WALTON, J. Rodney ,  KETCHUM, John W.

IPC分类号： H04L29/08 ,  H04W88/04 ,  H04W88/18 ,  H04W8/00

CPC分类号： H04L29/06326 ,  H04L67/04 ,  H04L67/16 ,  H04L67/18 ,  H04W4/00 ,  H04W48/08 ,  H04W48/16 ,  H04W76/20 ,  H04W92/18

摘要： Certain embodiments of the present disclosure relate to a method and an apparatus for managing and optimizing service discovery in a peer-to-peer (P 2 P) wireless network. Nodes of the P 2 P network advertise their capabilities to their peers in the form of services. Efficient propagation and management of node's services to other nodes is proposed in the present disclosure. An embodiment relates in particular to a method for wireless node in a peer-to-peer (P 2 P) network, comprising: receiving one or more advertisements of services offered by one or more other wireless nodes in the P 2 P network; generating a prioritized list of services, based on one or more services offered by the wireless node and services listed in the received advertisements of services; and distributing the prioritized list of services to other wireless nodes in the P 2 P network.

公开(公告)号：EP1680892B1

公开(公告)日：2013-05-15

申请号：EP04795421.9

申请日：2004-10-15

申请人： QUALCOMM INCORPORATED

发明人： KETCHUM, John W. ,  WALTON, J. Rodney ,  NANDA, Sanjiv

IPC分类号： H04L12/66

CPC分类号： H04W72/1273 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04W28/065