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1. 发明授权

US08605625B2 Methods and apparatus for peer discovery in a communications system 有权
标题翻译：通信系统中对等体发现的方法和装置
公开(公告)号：US08605625B2
公开(公告)日：2013-12-10
申请号：US12417383
申请日：2009-04-02
申请人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
IPC分类号： H04J1/16 , H04L12/66 , G06F15/177
CPC分类号： H04W8/005 , H04W8/186 , H04W48/14
摘要： Methods and apparatus supporting enhanced discovery operations in peer to peer networks are described. Peer discovery, based on direct peer to peer discovery between two mobile nodes can be somewhat limited, e.g., due to power limitations, processing power, and/or channel conditions. An access point, e.g., base station, monitors for and receives peer discovery signals conveying a set of identifiers from a wireless communications device. The access point retransmits at least one identifier in the set in a wireless peer to peer communications channel. Thus the access point effectively extends the peer discovery range for wireless communications devices utilizing the peer to peer network. Wireless communications devices can monitor for and recover the rebroadcast peer discovery signals from access points. Thus, via access point signaling a wireless communications device can be made situationally aware of other devices of interest which would be otherwise outside its discovery detection range.
摘要翻译：描述了支持对等网络中增强发现操作的方法和装置。基于两个移动节点之间的直接对等点发现的对等体发现可以受到一些限制，例如由于功率限制，处理能力和/或信道条件。接入点，例如基站，监视和接收从无线通信设备传送一组标识符的对等体发现信号。接入点在无线对等通信信道中重发集合中的至少一个标识符。因此，接入点有效地扩展了利用对等网络的无线通信设备的对等体发现范围。无线通信设备可以监视和恢复来自接入点的重播对等体发现信号。因此，通过接入点信令，可以使无线通信设备在情境上意识到其他在其发现检测范围之外的感兴趣的设备。

2. 发明申请

US20100110929A1 TRANSMISSION WITH HOPPING FOR PEER-PEER COMMUNICATION 有权
标题翻译：传输与同行通信
公开(公告)号：US20100110929A1
公开(公告)日：2010-05-06
申请号：US12264661
申请日：2008-11-04
申请人： Junyi Li , Saurabb Tavildar , Thomas Richardson , Ying Wang , Aleksandar Jovicic
发明人： Junyi Li , Saurabb Tavildar , Thomas Richardson , Ying Wang , Aleksandar Jovicic
IPC分类号： H04W84/00 , H04B1/69
CPC分类号： H04W8/005 , H04B1/7143 , H04B2001/6908 , H04L5/0007 , H04L5/0032 , H04L5/0042 , H04W72/02 , H04W72/0446
摘要： Techniques for transmitting signals using time hopping or time and frequency hopping are described. In one design, a terminal selects different slots to use for transmission in multiple frames with time hopping. Each frame includes multiple slots, and each slot covers a particular time duration. The selected slots are at different time locations in the multiple frames. In another design, a terminal selects different resource units to use for transmission in multiple frames with time and frequency hopping. The selected resource units are at different time and frequency locations in the multiple frames. For both designs, the terminal sends a signal (e.g., a peer discovery signal) in the selected slots or resource units in the multiple frames. The terminal may detect for signals (e.g., peer discovery signals) from other terminals in slots not used for transmission by the terminal.
摘要翻译：描述了使用跳时或时间和跳频来发送信号的技术。在一种设计中，终端选择不同的时隙用于在具有时间跳跃的多个帧中进行传输。每个帧包括多个时隙，并且每个时隙覆盖特定的持续时间。所选择的时隙位于多个帧中的不同时间位置。在另一种设计中，终端选择不同的资源单元用于在具有时间和跳频的多个帧中进行传输。所选择的资源单元在多个帧中处于不同的时间和频率位置。对于这两种设计，终端在多个帧中的所选择的时隙或资源单元中发送信号（例如，对等体发现信号）。终端可以在不用于由终端发送的时隙中检测来自其他终端的信号（例如，对等体发现信号）。

3. 发明授权

US08494437B2 Communication methods and apparatus 有权
标题翻译：沟通方法和设备
公开(公告)号：US08494437B2
公开(公告)日：2013-07-23
申请号：US12427890
申请日：2009-04-22
申请人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
IPC分类号： H04H1/00
CPC分类号： H04W72/042 , H04W4/12 , H04W76/28
摘要： Methods and apparatus well suited for efficiently communicating small amounts of information relatively frequently in a wireless communications system are described. An uplink timing frequency structure for an access point includes a set of dedicated uplink communications resources, e.g., expression advertisement interval air link resources. Different ones of the set of dedicated uplink communications resources correspond to different individual wireless communications devices currently registered with the access point. In the downlink timing frequency structure for the access point there are dedicated downlink broadcast communications resources, e.g., expression broadcast interval air link resources and neighbor expression broadcast interval air link resources. Information received on dedicated uplink air link resources is echoed back or selectively echoed back on the dedicated downlink air link resources. Wireless communications devices monitor downlink dedicated air link resources to recover expression information being communicated by other wireless communications devices in its local vicinity.
摘要翻译：描述了非常适合于在无线通信系统中相对频繁地有效地传送少量信息的方法和装置。用于接入点的上行链路定时频率结构包括一组专用上行链路通信资源，例如表达广告间隔空中链路资源。专用上行链路通信资源集合中的不同的对应于当前在接入点上登记的不同的单独无线通信设备。在接入点的下行链路定时频率结构中，存在专用的下行链路广播通信资源，例如表达广播间隔空中链路资源和邻居表达广播间隔空中链路资源。在专用上行链路空中链路资源上接收的信息在专用下行链路空中链路资源上被回送或选择性地回传。无线通信设备监视下行链路专用空中链路资源，以恢复由其本地附近的其他无线通信设备传送的表情信息。

4. 发明授权

US08121097B2 Transmission with hopping for peer-peer communication 有权
标题翻译：用于对等通信的跳频传输
公开(公告)号：US08121097B2
公开(公告)日：2012-02-21
申请号：US12264661
申请日：2008-11-04
申请人： Junyi Li , Saurabh Tavildar , Thomas Richardson , Ying Wang , Aleksandar Jovicic
发明人： Junyi Li , Saurabh Tavildar , Thomas Richardson , Ying Wang , Aleksandar Jovicic
IPC分类号： H04J3/00 , H04B7/212
CPC分类号： H04W8/005 , H04B1/7143 , H04B2001/6908 , H04L5/0007 , H04L5/0032 , H04L5/0042 , H04W72/02 , H04W72/0446
摘要： Techniques for transmitting signals using time hopping or time and frequency hopping are described. In one design, a terminal selects different slots to use for transmission in multiple frames with time hopping. Each frame includes multiple slots, and each slot covers a particular time duration. The selected slots are at different time locations in the multiple frames. In another design, a terminal selects different resource units to use for transmission in multiple frames with time and frequency hopping. The selected resource units are at different time and frequency locations in the multiple frames. For both designs, the terminal sends a signal (e.g., a peer discovery signal) in the selected slots or resource units in the multiple frames. The terminal may detect for signals (e.g., peer discovery signals) from other terminals in slots not used for transmission by the terminal.
摘要翻译：描述了使用跳时或时间和跳频来发送信号的技术。在一种设计中，终端选择不同的时隙用于在具有时间跳跃的多个帧中进行传输。每个帧包括多个时隙，并且每个时隙覆盖特定的持续时间。所选择的时隙位于多个帧中的不同时间位置。在另一种设计中，终端选择不同的资源单元用于在具有时间和跳频的多个帧中进行传输。所选择的资源单元在多个帧中处于不同的时间和频率位置。对于这两种设计，终端在多个帧中的所选择的时隙或资源单元中发送信号（例如，对等体发现信号）。终端可以在不用于由终端发送的时隙中检测来自其他终端的信号（例如，对等体发现信号）。

5. 发明授权

US08107565B2 Automatic gain control (AGC) for OFDM-based transmission in a wireless communication network 有权
标题翻译：在无线通信网络中用于基于OFDM的传输的自动增益控制（AGC）
公开(公告)号：US08107565B2
公开(公告)日：2012-01-31
申请号：US12360907
申请日：2009-01-28
申请人： Junyi Li , Vladimir Parizhsky , Frank A. Lane , Aleksandar Jovicic , Ying Wang
发明人： Junyi Li , Vladimir Parizhsky , Frank A. Lane , Aleksandar Jovicic , Ying Wang
IPC分类号： H04L27/08
CPC分类号： H04L27/2647 , H03G3/3078
摘要： Techniques for performing automatic gain control (AGC) at a receiver are described. The receiver may receive an OFDM-based symbol composed of a cyclic prefix and a useful portion. The receiver may scale the OFDM-based symbol with an initial receiver gain, adjust the initial receiver gain based on the cyclic prefix, apply the adjusted receiver gain prior to the useful portion, and process the useful portion to recover at least one signal sent by at least one transmitter. The receiver may select the initial receiver gain, e.g., based on a predicted received power level for the at least one transmitter, a pattern of different receiver gains, etc. The receiver may apply the initial receiver gain at the start of the OFDM-based symbol. The receiver may measure the power of a set of samples in the cyclic prefix and may adjust the receiver gain based on the measured power and a target power.
摘要翻译：描述了在接收机处执行自动增益控制（AGC）的技术。接收机可以接收由循环前缀和有用部分组成的基于OFDM的符号。接收机可以利用初始接收机增益来缩放基于OFDM的符号，基于循环前缀调整初始接收机增益，在有用部分之前应用经调整的接收机增益，并处理有用部分以恢复至少一个由至少一个发射机。接收机可以例如基于至少一个发射机的预测接收功率电平，不同接收机增益的模式等来选择初始接收机增益。接收机可以在基于OFDM的开始处应用初始接收机增益符号。接收机可以测量循环前缀中的一组样本的功率，并且可以基于测量的功率和目标功率来调整接收机增益。

6. 发明申请

US20100272029A1 METHODS AND APPARATUS FOR COMMUNICATING INFORMATION 有权
标题翻译：传播信息的方法和设备
公开(公告)号：US20100272029A1
公开(公告)日：2010-10-28
申请号：US12427883
申请日：2009-04-22
申请人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
IPC分类号： H04W4/00 , H04L27/28 , H04W72/04
CPC分类号： H04W72/0413 , H04W72/1268
摘要： Methods and apparatus for efficiently communicating small amounts of information relatively frequently in a wireless communications system are described. An access point's uplink timing frequency structure includes a set of dedicated uplink communications resources, e.g., expression advertisement interval air link resources, which may be in addition to regular traffic channel resources. The set of dedicated uplink communications resources comprises a small fraction of the total uplink communications resources. An individual one of the set of dedicated uplink communications resources can carry a small amount of information bits. An expression advertisement interval occurs relatively frequently. A wireless communications device, registered with the access point, is allocated one of the set of dedicated uplink resources. The wireless communications device can transmit information using its allocated resource in both a sleep state and an active state.
摘要翻译：描述了在无线通信系统中相对频繁地有效地传送少量信息的方法和装置。接入点的上行链路定时频率结构包括一组专用上行链路通信资源，例如表达广告间隔空中链路资源，其可以是常规业务信道资源。专用上行链路通信资源集合包括总上行链路通信资源的一小部分。一组专用上行链路通信资源中的一个单独的一个可以携带少量的信息位。表达广告间隔相对频繁地发生。向该接入点注册的无线通信设备被分配为一组专用上行链路资源中的一个。无线通信设备可以在睡眠状态和活动状态中使用其分配的资源来发送信息。

7. 发明申请

US20120276863A1 AUTOMATIC GAIN CONTROL IN A WIRELESS COMMUNICATION NETWORK 失效
标题翻译：无线通信网络中的自动增益控制
公开(公告)号：US20120276863A1
公开(公告)日：2012-11-01
申请号：US13544169
申请日：2012-07-09
申请人： Junyi Li , Ying Wang , Thomas Richardson , Aleksandar Jovicic
发明人： Junyi Li , Ying Wang , Thomas Richardson , Aleksandar Jovicic
IPC分类号： H03G3/20 , H04W24/00
CPC分类号： H03G3/3078 , H03G3/3089 , H04W52/383 , H04W52/52
摘要： Techniques for performing automatic gain control (AGC) at a terminal in a wireless communication network are described. In an aspect, the terminal may use different receiver gain settings to receive different types of signals in different time intervals. The terminal may determine a receiver gain setting for each signal type and may use the receiver gain setting to receive signals of that signal type. In another aspect, the terminal may determine a receiver gain setting for a future time interval based on received power levels for peer terminals expected to transmit in that time interval. The terminal may measure received power levels of signals received from a plurality of terminals. The terminal may determine a set of terminals expected to transmit in the future time interval and may determine the receiver gain setting for the future time interval based on the measured received power levels.
摘要翻译：描述了在无线通信网络中的终端处执行自动增益控制（AGC）的技术。在一方面，终端可以使用不同的接收机增益设置来以不同的时间间隔接收不同类型的信号。终端可以确定每个信号类型的接收机增益设置，并且可以使用接收机增益设置来接收该信号类型的信号。在另一方面，终端可以基于期望在该时间间隔中发送的对等终端的接收功率电平来确定未来时间间隔的接收机增益设置。终端可以测量从多个终端接收的信号的接收功率电平。终端可以确定期望在未来时间间隔中发送的一组终端，并且可以基于测量的接收功率电平来确定未来时间间隔的接收机增益设置。

8. 发明申请

US20100250673A1 METHODS AND APPARATUS FOR COMBINED PEER TO PEER AND WIDE AREA NETWORK BASED DISCOVERY 有权
标题翻译：与同行和广域网联合发现的方法与装置
公开(公告)号：US20100250673A1
公开(公告)日：2010-09-30
申请号：US12413877
申请日：2009-03-30
申请人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
发明人： Rajiv Laroia , Junyi Li , Vincent D. Park , Ying Wang , Aleksandar Jovicic
IPC分类号： G06F15/16
CPC分类号： H04W4/02 , H04L67/16 , H04W4/20 , H04W4/21 , H04W8/005 , H04W76/14 , H04W84/22 , H04W88/06
摘要： A first wireless communications device includes a wide area network (WAN) interface and a peer to peer interface. The first device discovers the presence of a second wireless communications device via a peer discovery signal, received via its peer to peer interface. The second device has been transmitting, e.g., periodically, certain information, e.g., its location and/or shopping preferences, to a node within the WAN. The detected first signal triggers an application alert in the first device. The first device recovers past information about the second device through a second signal received via its WAN interface. The first device uses information communicated in the first signal, e.g., device identifier information, and information communicated in the second signal, e.g., past location and/or shopping information, to generate a targeted message for the second device. The first device communicates the targeted message via its peer to peer interface in a peer to peer traffic channel.
摘要翻译：第一无线通信设备包括广域网（WAN）接口和对等接口。第一设备经由其对等接口接收的对等体发现信号发现第二无线通信设备的存在。第二设备已经例如周期性地向WAN内的节点发送某些信息，例如其位置和/或购物偏好。所检测到的第一信号在第一设备中触发应用警报。第一个设备通过其WAN接口接收的第二个信号恢复关于第二个设备的信息。第一设备使用在第一信号中传送的信息，例如，设备标识符信息，以及在第二信号中传送的信息，例如过去位置和/或购物信息，以产生用于第二设备的目标消息。第一设备通过对等业务信道中的对等接口对目标消息进行通信。

9. 发明申请

US20100189188A1 AUTOMATIC GAIN CONTROL (AGC) FOR OFDM-BASED TRANSMISSION IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：自动增益控制（AGC）在无线通信网络中基于OFDM的传输
公开(公告)号：US20100189188A1
公开(公告)日：2010-07-29
申请号：US12360907
申请日：2009-01-28
申请人： Junyi Li , Vladimir Parizhsky , Frank A. Lane , Aleksandar Jovicic , Ying Wang
发明人： Junyi Li , Vladimir Parizhsky , Frank A. Lane , Aleksandar Jovicic , Ying Wang
IPC分类号： H04L25/10 , H04L27/28
CPC分类号： H04L27/2647 , H03G3/3078
摘要： Techniques for performing automatic gain control (AGC) at a receiver are described. The receiver may receive an OFDM-based symbol composed of a cyclic prefix and a useful portion. The receiver may scale the OFDM-based symbol with an initial receiver gain, adjust the initial receiver gain based on the cyclic prefix, apply the adjusted receiver gain prior to the useful portion, and process the useful portion to recover at least one signal sent by at least one transmitter. The receiver may select the initial receiver gain, e.g., based on a predicted received power level for the at least one transmitter, a pattern of different receiver gains, etc. The receiver may apply the initial receiver gain at the start of the OFDM-based symbol. The receiver may measure the power of a set of samples in the cyclic prefix and may adjust the receiver gain based on the measured power and a target power.
摘要翻译：描述了在接收机处执行自动增益控制（AGC）的技术。接收机可以接收由循环前缀和有用部分组成的基于OFDM的符号。接收机可以利用初始接收机增益来缩放基于OFDM的符号，基于循环前缀调整初始接收机增益，在有用部分之前应用经调整的接收机增益，并处理有用部分以恢复至少一个由至少一个发射机。接收机可以例如基于至少一个发射机的预测接收功率电平，不同接收机增益的模式等来选择初始接收机增益。接收机可以在基于OFDM的开始处应用初始接收机增益符号。接收机可以测量循环前缀中的一组样本的功率，并且可以基于测量的功率和目标功率来调整接收机增益。

10. 发明授权

US09014104B2 Transmit power control based on receiver gain setting in a wireless communication network 有权
标题翻译：基于无线通信网络中接收机增益设置的发射功率控制
公开(公告)号：US09014104B2
公开(公告)日：2015-04-21
申请号：US12264679
申请日：2008-11-04
申请人： Junyi Li , Ying Wang , Aleksandar Jovicic
发明人： Junyi Li , Ying Wang , Aleksandar Jovicic
IPC分类号： H04W72/04 , H04W52/52 , H04W52/24 , H04W52/38
CPC分类号： H04W52/52 , H04W52/242 , H04W52/383
摘要： Techniques for performing transmit power control based on receiver gain setting in a wireless communication network are described. In an aspect, a terminal A may estimate pathloss to another terminal B, e.g., based on a peer discovery signal received from terminal B. Terminal A may then determine a transmit power level for a peer-to-peer (PTP) signal (e.g., a paging signal) based on the estimated pathloss, a receiver gain setting at terminal B, and a target received power level for the PTP signal. Terminal A may send the PTP signal at the determined transmit power level to terminal B. In another aspect, terminal B may use different receiver gain settings in different time intervals to receive PTP signals from other terminals. Terminal A may then select a suitable time interval to send the PTP signal based on the pathloss and the different receiver gain settings used by terminal B.
摘要翻译：描述了基于无线通信网络中的接收机增益设置来执行发射功率控制的技术。在一方面，终端A可以例如基于从终端B接收到的对等体发现信号来估计到另一个终端B的路径损耗。终端A然后可以确定对等（PTP）信号的发射功率电平（例如，，寻呼信号），基于所估计的路径损耗，终端B的接收机增益设置以及PTP信号的目标接收功率电平。终端A可以以确定的发射功率电平向终端B发送PTP信号。另一方面，终端B可以在不同的时间间隔中使用不同的接收机增益设置来从其他终端接收PTP信号。然后，终端A可以根据终端B使用的路径损耗和不同的接收机增益设置来选择合适的时间间隔来发送PTP信号。

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