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111. 发明申请

US20090016271A1 METHODS FOR SENDING SMALL PACKETS IN A PEER-TO-PEER (P2P) NETWORK 失效
公开(公告)号：US20090016271A1
公开(公告)日：2009-01-15
申请号：US12168662
申请日：2008-07-07
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04Q7/20
CPC分类号： H04L1/0002 , H04L1/0025 , Y02D70/10 , Y02D70/20
摘要： An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented among local peer devices. In a traffic slot, a transmitter voluntarily backs down on the transmitter power as a smaller packet will require much lower signal-to-noise ratio. This will improve the signal energy per bit per noise power density for the transmission as well as minimize the interference caused to other wireless communications happening in the same spectrum.

112. 发明申请

US20090016231A1 CONTROL CHANNEL DESIGN TO SUPPORT ONE-TO-ONE, MANY-TO-ONE, AND ONE-TO-MANY PEER-TO-PEER COMMUNICATIONS 有权
公开(公告)号：US20090016231A1
公开(公告)日：2009-01-15
申请号：US12169087
申请日：2008-07-08
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04L12/26
CPC分类号： H04L5/0091 , H04L5/0007 , H04L5/0044 , H04L5/0053 , H04L5/0062 , H04W72/082 , H04W72/1231 , H04W72/1278 , H04W74/002 , H04W84/18
摘要： A protocol is provided that facilitates downlink concurrent peer-to-peer communications (within a time slot or traffic slot) between one device and many terminals as well as uplink concurrent peer-to-peer communications (within a time slot or traffic slot) between a plurality of terminals and one device. The concurrent peer-to-peer communications may take place within an ad hoc network of devices. To facilitate such operation, a time-frequency structure is provided within a control channel that allows the device and terminals to identify the peer-to-peer connections. This time-frequency structure also allows terminals to identify other sibling terminals that have a connection with the same device, thereby allowing to more efficiently performing interference mitigation. That is, sibling peer-to-peer connections with the same device may be treated different from other non-related peer-to-peer connects for purposes of interference mitigation in a wireless network.

113. 发明申请

US20070253385A1 Methods and apparatus for controlling a base stations's transmission power 有权
标题翻译：控制基站传输功率的方法和装置
公开(公告)号：US20070253385A1
公开(公告)日：2007-11-01
申请号：US11549611
申请日：2006-10-13
申请人： Junyi Li , Xinzhou Wu , Arnab Das
发明人： Junyi Li , Xinzhou Wu , Arnab Das
IPC分类号： H04Q7/24 , H04B1/38
CPC分类号： H04W16/08 , H04B17/24 , H04B17/382 , H04W4/06 , H04W16/06 , H04W24/10 , H04W36/20 , H04W52/143 , H04W52/343 , H04W52/40 , H04W72/082
摘要： A base station receives loading information indicative of the loading of other base stations and determines a downlink transmission power budget as a function of the received loading factor information. The base station may decrease/increase a current power budget dedicated to downlink traffic channel segments in response to detecting an increase/decrease in loading at an adjacent base station. Thus, base stations operate in a cooperative manner reducing power output, in at least some cases, where loading at a neighboring base station increases thereby reducing the interference to the base station with the increased load. A base station can consider possible alternative transmission power levels, estimated levels of interference, and/or possible alternative data rates in making trade-off decisions regarding downlink power budget.
摘要翻译：基站接收指示其他基站的负载的负载信息，并根据所接收的负载因子信息确定下行链路传输功率预算。响应于检测到相邻基站的负载的增加/减少，基站可以减少/增加专用于下行链路业务信道段的当前功率预算。因此，在至少一些情况下，在相邻基站的负载增加的情况下，基站以协作的方式工作，减少功率输出，从而减小了具有增加的负载对基站的干扰。在对下行链路功率预算进行权衡决定时，基站可以考虑可能的替代发射功率电平，估计的干扰电平和/或可能的备选数据速率。

114. 发明申请

US20070211677A1 SUPPORT FOR WIDE AREA NETWORKS AND LOCAL AREA PEER-TO-PEER NETWORKS 有权
标题翻译：支持广域网和本地区对等网络
公开(公告)号：US20070211677A1
公开(公告)日：2007-09-13
申请号：US11621972
申请日：2007-01-10
申请人： Rajiv Laroia , Junyi Li , Tom Richardson , Xinzhou Wu , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Tom Richardson , Xinzhou Wu , Aleksandar Jovicic
IPC分类号： H04Q7/24
CPC分类号： H04W40/244 , H04J3/0602 , H04L5/0016 , H04L5/0035 , H04L5/0048 , H04L27/2601 , H04L27/261 , H04W8/005 , H04W16/14 , H04W28/04 , H04W28/18 , H04W36/16 , H04W36/24 , H04W40/24 , H04W48/08 , H04W48/16 , H04W48/20 , H04W52/0229 , H04W52/04 , H04W72/02 , H04W76/14 , H04W84/042 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/10 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Systems and methodologies are described that facilitate sharing bandwidth between a wide area network and a local area peer-to-peer network. The peer-to-peer network may use an air interface technology that is similar to distinct from an air interface technology use din the wide area network. Moreover, the wide area network and the local area peer-to-peer network may utilize distinct sets of parameters. For example, if the wide area network and the peer-to-peer network use OFDM-based air interface technologies, parameters such as tone spacing, symbol time, cyclic prefix, and the like of the two networks may vary. Further, peer-to-peer parameters may be a function of parameters for the wide area network.
摘要翻译：描述了便于在广域网和局域对等网络之间共享带宽的系统和方法。对等网络可以使用与广域网中的空中接口技术不同的空中接口技术。此外，广域网和本地对等网络可以利用不同的参数集合。例如，如果广域网和对等网络使用基于OFDM的空中接口技术，则两个网络的诸如音调间隔，符号时间，循环前缀等参数可以变化。此外，对等参数可以是广域网的参数的函数。

115. 发明授权

US09247411B2 Methods and apparatus for supporting multi-hop peer discovery in peer-to-peer wireless networks 有权
标题翻译：在对等无线网络中支持多跳对等体发现的方法和装置
公开(公告)号：US09247411B2
公开(公告)日：2016-01-26
申请号：US12645746
申请日：2009-12-23
申请人： Xinzhou Wu , Junyi Li , Aleksandar Jovicic , Sanjay Shakkottai , Saurabh Tavildar
发明人： Xinzhou Wu , Junyi Li , Aleksandar Jovicic , Sanjay Shakkottai , Saurabh Tavildar
IPC分类号： H04B7/14 , H04L12/28 , H04W8/00 , H04W84/18
CPC分类号： H04W8/005 , H04W84/18
摘要： Methods and apparatus for supporting multi-hop peer discovery in peer-to-peer wireless networks are disclosed. One method supports multi-hop peer discovery using a first peer having a first unique identification code. The method includes decoding a second peer discovery signal to obtain a second unique identification code and a second local identification code of a second peer received during a peer-to-peer discovery channel, determining whether to select the second peer based on a predetermined criterion; and transmitting a first peer discovery signal having the first unique identification code, the second local identification code and a hop count when the predetermined criterion is satisfied.
摘要翻译：公开了在对等无线网络中支持多跳对等体发现的方法和装置。一种方法支持使用具有第一唯一识别码的第一对等体的多跳对等体发现。该方法包括解码第二对等体发现信号以获得在对等发现信道期间接收的第二对等体的第二唯一标识码和第二本地标识码，基于预定准则确定是否选择第二对等体; 以及当满足所述预定标准时，发送具有所述第一唯一识别码，所述第二本地识别码和跳数的第一对等体发现信号。

116. 发明授权

US09094164B2 Methods and apparatus to improve channel estimation in communication systems 有权
标题翻译：改善通信系统信道估计的方法和装置
公开(公告)号：US09094164B2
公开(公告)日：2015-07-28
申请号：US13448638
申请日：2012-04-17
申请人： Sundar Subramanian , Xinzhou Wu , Quan Geng , Cyril Measson , Thomas J. Richardson , Junyi Li
发明人： Sundar Subramanian , Xinzhou Wu , Quan Geng , Cyril Measson , Thomas J. Richardson , Junyi Li
IPC分类号： H04L5/00 , H04L1/00 , H04L27/26 , H04L25/02
CPC分类号： H04L5/0048 , H04L1/0042 , H04L1/0068 , H04L5/0007 , H04L25/0226 , H04L27/2613
摘要： A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus generates a codeword, determines at least one puncture to the codeword based on allowing a legacy receiver to decode the codeword without knowledge of the at least one puncture, replaces each of the at least one puncture with a pilot, and transmits the codeword. The apparatus may also generate an IEEE 802.11 codeword having pilots in a first set of subcarriers, and puncture the codeword with additional pilots unknown to a legacy receiver in a second set of subcarriers. Accordingly, when an original set of pilot symbols is insufficient or inappropriately placed in a resource structure, a codeword may be transmitted with a new pilot structure capable of being decoded by legacy receivers not aware of the new pilot structure.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品。该装置产生码字，基于允许传统接收机在不知道至少一个穿孔的情况下对码字进行解码，确定至少一个穿刺码字，用导频代替至少一个穿孔中的每一个，并发送该码字。该装置还可以生成在第一组子载波中具有导频的IEEE 802.11码字，并且在第二组副载波中对传统接收机未知的附加导频进行穿孔。因此，当原始的导频符号集合不足或不适当地放置在资源结构中时，可以用能够被不知道新导频结构的传统接收机解码的新导频结构来发送码字。

117. 发明授权

US09084231B2 Methods and apparatus for acquiring and using multiple connection identifiers 有权
标题翻译：用于获取和使用多个连接标识符的方法和装置
公开(公告)号：US09084231B2
公开(公告)日：2015-07-14
申请号：US12047741
申请日：2008-03-13
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04W4/00 , H04L12/28 , H04W76/02 , H04W8/00 , H04W84/18
CPC分类号： H04W76/021 , H04W8/005 , H04W76/11 , H04W76/14 , H04W76/15 , H04W84/18
摘要： Methods and apparatus related to a peer to peer wireless communications system supporting the association of multiple connection identifiers with a single connection between a pair of wireless terminals are described. A differentiated quality of service is supported by assigning different numbers of connection identifiers to different connections. The number of connection identifiers assigned to a wireless terminal pair for a connection is a function of one of: data rate, priority information, and quality of service information. Being allocated a higher number of connection identifiers results in being allocated a higher number of traffic transmission request resources, thus increasing the likelihood that the connection is permitted to use a traffic transmission segment. The allocation of connection identifiers is performed in a distributed manner in which handshake signaling occurs between a wireless terminal pair seeking to establish a connection, e.g., as part of a multi-step paging scheme.
摘要翻译：描述了支持多个连接标识符与一对无线终端之间的单个连接的关联的对等无线通信系统相关的方法和装置。通过为不同的连接分配不同数量的连接标识符来支持差异化的服务质量。分配给用于连接的无线终端对的连接标识符的数量是数据速率，优先级信息和服务质量信息之一的函数。分配更多数量的连接标识符导致分配更多数量的业务传输请求资源，从而增加连接被允许使用业务传输段的可能性。连接标识符的分配以分布式方式执行，其中握手信号发生在寻求建立连接的无线终端对之间，例如作为多步寻呼方案的一部分。

118. 发明授权

US08989817B2 Methods and apparatus for using antennas with different polarization and signal transmit powers 有权
标题翻译：使用具有不同极化和信号发射功率的天线的方法和装置
公开(公告)号：US08989817B2
公开(公告)日：2015-03-24
申请号：US12043821
申请日：2008-03-06
申请人： Xinzhou Wu , Vikram Reddy Anreddy , Junyi Li , Rajiv Laroia
发明人： Xinzhou Wu , Vikram Reddy Anreddy , Junyi Li , Rajiv Laroia
IPC分类号： H04M1/00 , H04W16/12 , H04B7/10 , H04W52/42 , H04W16/24
CPC分类号： H04W16/12 , H04B7/10 , H04W16/24 , H04W52/42
摘要： Method and apparatus related to implementing and/or utilizing different polarization antennas with different corresponding average transmit power levels are described. Inter-cell interference is mitigated by having different cells with different power relationships between polarizations antennas. For example, a first base station transmits at a high average power level on its vertical polarization antenna and transmits at a low average power level on its horizontal polarization antenna. Concurrently, a second base station, which is adjacent to the first base station, transmits at a low average power level on its vertical polarization antenna and transmits at a high average power level on its horizontal polarization antenna. In some hexagonal deployment schemes a base station has at most two adjacent base stations using the same power level to antenna polarization direction relationship as it is using.
摘要翻译：描述了实现和/或利用具有不同对应的平均发射功率电平的不同极化天线相关的方法和装置。通过在极化天线之间具有不同功率关系的不同单元来减轻小区间干扰。例如，第一基站在其垂直极化天线上以高平均功率电平发送，并在其水平极化天线上以低平均功率电平进行发送。同时，与第一基站相邻的第二基站在其垂直极化天线上以低平均功率电平进行发送，并以其水平极化天线上的高平均功率电平进行发送。在一些六边形部署方案中，基站具有至多两个相邻基站，其使用与其正在使用的天线偏振方向关系相同的功率电平。

119. 发明授权

US08923317B2 Wireless device discovery in a wireless peer-to-peer network 有权
标题翻译：无线对等网络中的无线设备发现
公开(公告)号：US08923317B2
公开(公告)日：2014-12-30
申请号：US11621967
申请日：2007-01-10
申请人： Rajiv Laroia , Junyi Li , Tom Richardson , Xinzhou Wu , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Tom Richardson , Xinzhou Wu , Aleksandar Jovicic
IPC分类号： H04L12/28
CPC分类号： H04W40/244 , H04J3/0602 , H04L5/0016 , H04L5/0035 , H04L5/0048 , H04L27/2601 , H04L27/261 , H04W8/005 , H04W16/14 , H04W28/04 , H04W28/18 , H04W36/16 , H04W36/24 , H04W40/24 , H04W48/08 , H04W48/16 , H04W48/20 , H04W52/0229 , H04W52/04 , H04W72/02 , H04W76/14 , H04W84/042 , H04W84/18 , H04W88/02 , H04W88/04 , H04W88/06 , H04W88/10 , Y02D70/1222 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162 , Y02D70/164 , Y02D70/168 , Y02D70/22 , Y02D70/23
摘要： Systems and methodologies are described that facilitate detecting and/or identifying peers in a local area peer-to-peer network. Times (e.g., peer discovery intervals) for performance of mutual detection and identification between peers may be synchronized (e.g., based upon a signal broadcast to the peers). Further, within each partitioned peer discovery interval, a wireless terminal may select a portion of time to transmit (e.g., broadcast) short messages that may be employed by peers to detect and/identify the wireless terminal. Moreover, the remainder of the time within the partitioned peer discovery interval may be employed to listen to short messages received from peers.
摘要翻译：描述了便于在本地区域对等网络中检测和/或识别对等体的系统和方法。用于执行对等体之间的相互检测和识别的时间（例如，对等设备发现间隔）可以被同步（例如，基于向对等体的信号广播）。此外，在每个分配的对等设备发现间隔内，无线终端可以选择发送（例如，广播）短消息的一部分时间，所述短消息可被对等体采用以检测和/识别无线终端。此外，可以采用分区对等设备发现间隔内的剩余时间来收听从对等体接收的短消息。

120. 发明授权

US08874040B2 Methods and apparatus for successive interference cancellation based on rate capping in peer-to-peer networks 有权
标题翻译：基于对等网络中的速率上限的连续干扰消除的方法和装置
公开(公告)号：US08874040B2
公开(公告)日：2014-10-28
申请号：US12164372
申请日：2008-06-30
申请人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
发明人： Junyi Li , Rajiv Laroia , Saurabh Tavildar , Xinzhou Wu
IPC分类号： H04W72/00 , H04W52/32 , H04W28/22 , H04W52/26 , H04W84/18 , H04W52/24 , H04W52/16 , H04W72/08 , H04W52/22
CPC分类号： H04W28/22 , H04W52/16 , H04W52/223 , H04W52/241 , H04W52/267 , H04W52/325 , H04W52/383 , H04W72/08 , H04W84/18
摘要： In an ad hoc peer-to-peer communication network between wireless devices, a high priory first receiver device is configured to perform successive interference cancellation (SIC). The first receiver device receives a first transmission request from a first transmitter device indicating that the first transmitter device intends to transmit traffic to the first receiver device. Similarly, the first receiver device receives a second transmission request from an interferer second transmitter device. The first receiver device then determines a transmission rate cap for the interferer second transmitter device based on the signal strengths of the first and second transmission requests and sends it to the interferer second transmitter device. The transmission rate cap is a maximum rate at which the first receiver device can reliably decode traffic signals from the second transmitter device.
摘要翻译：在无线设备之间的自组织对等通信网络中，高级第一接收机设备被配置为执行连续的干扰消除（SIC）。第一接收机设备从第一发射机设备接收指示第一发射机设备旨在向第一接收机设备传输业务的第一传输请求。类似地，第一接收机设备从干扰源第二发射机设备接收第二传输请求。然后，第一接收机设备基于第一和第二传输请求的信号强度确定干扰源第二发射机设备的传输速率上限，并将其发送到干扰源第二发射机设备。传输速率上限是第一接收机设备可以可靠地解码来自第二发射机设备的业务信号的最大速率。

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