公开(公告)号：US20090016229A1

公开(公告)日：2009-01-15

申请号：US12166645

申请日：2008-07-02

申请人： Xinzhou Wu ,  Saurabh Tavildar ,  Vincent D. Park ,  Junyi Li ,  Rajiv Laroia

发明人： Xinzhou Wu ,  Saurabh Tavildar ,  Vincent D. Park ,  Junyi Li ,  Rajiv Laroia

IPC分类号： H04L12/26

CPC分类号： H04W28/0236 ,  H04L12/1881 ,  H04L12/189 ,  H04W72/005 ,  H04W72/082 ,  H04W72/10 ,  H04W72/1231 ,  H04W72/1247 ,  H04W84/18

摘要： Methods and apparatus related to broadcasting data and interference management in a peer to peer wireless communications network are described. Scheduling of traffic air link resources is performed on a slot by slot basis in a decentralized manner. Wireless devices intending to broadcast traffic signals transmit broadcast request signals, sometimes alternatively referred to as broadcast indicator signals. A priority level is associated with each of the broadcast request signals. A receiver device intending to receive broadcast signals detects the broadcast request signals and makes an interference determination as to whether the higher priority broadcast traffic signal can be successfully recovered in the presence of lower priority broadcast traffic signals. If the determination is that the expected interference from the lower priority broadcast traffic is unacceptable, the receiver device generates and transmits an interference control signal communicating to the lower priority device a command or request not to broadcast.

摘要翻译： 描述了在对等无线通信网络中与广播数据和干扰管理有关的方法和装置。 以分散的方式逐个时隙地执行业务空中链路资源的调度。 有意地广播业务信号的无线设备发送广播请求信号，有时可选地称为广播指示符信号。 优先级与每个广播请求信号相关联。 要接收广播信号的接收机设备检测广播请求信号，并且在存在较低优先级的广播业务信号的情况下，是否可以成功地恢复较高优先级的广播业务信号，并做出干扰确定。 如果确定来自较低优先级的广播业务的预期干扰是不可接受的，则接收机设备生成并发送与低优先级设备通信的干扰控制信号，该命令或请求不被广播。

公开(公告)号：US20090010232A1

公开(公告)日：2009-01-08

申请号：US11774282

申请日：2007-07-06

申请人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

发明人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

IPC分类号： H04Q7/24

CPC分类号： H04W56/002 ,  H04W92/18

摘要： Methods and apparatus related to peer to peer communication networks are described. A peer to peer timing structure is implemented which includes a pattern of different types of time intervals including at least a peer discovery time interval and a traffic interval. A wireless communications device, supporting peer to peer operations stores the peer to peer timing structure information, accesses the stored information, and used the accessed information to determine an operation to be performed during a current time period. The operation is, e.g., a peer discovery operation, a peer to peer timing synchronization operation, a peer paging operation, or a peer to peer traffic signaling operation. Various exemplary relationships between the different types of intervals, including relative frequencies, relative durations, and spacing information, are described. Advantageous construction of the recurring peer to peer timing structure facilitates efficient utilization of air link resources and/or higher traffic data throughput capabilities.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 实现对等定时结构，其包括不同类型的时间间隔的模式，包括至少对等体发现时间间隔和业务间隔。 支持对等操作的无线通信设备存储对等定时结构信息，访问所存储的信息，并使用所访问的信息来确定在当前时间段内要执行的操作。 操作是例如对等体发现操作，对等定时同步操作，对等寻呼操作或对等业务信令操作。 描述不同类型间隔之间的各种示例性关系，包括相对频率，相对持续时间和间隔信息。 重复的对等定时结构的有利构造有助于空中链路资源的有效利用和/或更高的业务数据吞吐能力。

公开(公告)号：US20090010179A1

公开(公告)日：2009-01-08

申请号：US11773947

申请日：2007-07-05

申请人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

发明人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

IPC分类号： H04L12/28 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W8/005 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04W68/00 ,  H04W74/04 ,  H04W84/18

摘要： Methods and apparatus related to peer to peer communication networks are described. An active connection list is maintained by a wireless communications device supporting peer to peer communications. In various embodiments, the active connection identifier list being maintained is in addition to a list of discovered peers in the local vicinity. Paging signaling, e.g., peer to peer paging signaling, is used to establish active connections. Air link peer to peer traffic resources include traffic control resources and traffic data resources. A wireless communications device seeking to transmit on a traffic data resource transmits a traffic request signal on a traffic control resource. An active connection identifier is, in some embodiments, associated with a particular subset of traffic control resources. Thus, a wireless communications device monitors the portion or portions of the traffic control resource corresponding to its active connections for traffic request signals, but need not monitor other portions.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 活动连接列表由支持对等通信的无线通信设备维护。 在各种实施例中，正在维护的活动连接标识符列表是在本地附近的发现的对等体的列表之外的。 寻呼信令，例如对等寻呼信令，用于建立主动连接。 空中链路对等​​流量资源包括流量控制资源和流量数据资源。 寻求在业务数据资源上发送的无线通信设备在业务控制资源上发送业务请求信号。 在一些实施例中，活动连接标识符与流量控制资源的特定子集相关联。 因此，无线通信设备监视与其活动连接相对应的业务控制资源的部分或部分以用于业务请求信号，但不需要监视其他部分。

公开(公告)号：US20080291856A1

公开(公告)日：2008-11-27

申请号：US12119774

申请日：2008-05-13

申请人： Junyi Li ,  Rajiv Laroia ,  Frank Lane

发明人： Junyi Li ,  Rajiv Laroia ,  Frank Lane

IPC分类号： H04B7/212

CPC分类号： H04W52/34 ,  H04B7/12 ,  H04L27/2662 ,  H04W52/343 ,  H04W52/42

摘要： Power control methods and apparatus for use in a sectorized cell of an OFDM communications system are described. Each sector of a cell uses the same frequencies and transmission times and is synchronized with the other sectors in the cell in terms of tone frequencies used at any given time and symbol transmission times. Tones are allocated to channels in each cell in the same manner so that each channel in a sector has a corresponding channel in another sector. Power differences between channels in different sectors are maintained to be within a pre-selected power difference. Different channels in a cell are assigned different power levels. Wireless terminals are assigned to channels based on channel feedback information. Wireless terminals with poor channel conditions are allocated to higher power channels than wireless terminals with good channel conditions. Lower power channels often include more tones per symbol time than high power channels.

摘要翻译： 描述了在OFDM通信系统的扇区化小区中使用的功率控制方法和装置。 单元的每个扇区使用相同的频率和传输时间，并且根据在任何给定时间和符号传输时间使用的音调频率与小区中的其他扇区同步。 以相同的方式将音调分配给每个小区中的信道，使得扇区中的每个信道在另一个扇区中具有相应的信道。 不同扇区中的信道之间的功率差被维持在预先选择的功率差之内。 单元中的不同通道被分配不同的功率电平。 基于信道反馈信息将无线终端分配给信道。 具有较差信道条件的无线终端分配给具有良好信道条件的无线终端的较高功率信道。 低功率通道通常每个符号时间包括比高功率通道更多的音调。

公开(公告)号：US07388845B2

公开(公告)日：2008-06-17

申请号：US10640861

申请日：2003-08-13

申请人： Rajiv Laroia ,  Frank A. Lane ,  Junyi Li

发明人： Rajiv Laroia ,  Frank A. Lane ,  Junyi Li

IPC分类号： H04B7/212 ,  G08C17/00

CPC分类号： H04W52/34 ,  H04B7/12 ,  H04L27/2662 ,  H04W52/343 ,  H04W52/42

摘要： Power control methods and apparatus for use in a sectorized cell of an OFDM communications system are described. Each sector of a cell uses the same frequencies and transmission times and is synchronized with the other sectors in the cell in terms of tone frequencies used at any given time and symbol transmission times. Tones are allocated to channels in each cell in the same manner so that each channel in a sector has a corresponding channel in another sector. Power differences between channels in different sectors are maintained to be within a pre-selected power difference. Different channels in a cell are assigned different power levels. Wireless terminals are assigned to channels based on channel feedback information. Wireless terminals with poor channel conditions are allocated to higher power channels than wireless terminals with good channel conditions. Lower power channels often include more tones per symbol time than high power channels.

摘要翻译： 描述了在OFDM通信系统的扇区化小区中使用的功率控制方法和装置。 单元的每个扇区使用相同的频率和传输时间，并且根据在任何给定时间和符号传输时间使用的音调频率与小区中的其他扇区同步。 以相同的方式将音调分配给每个小区中的信道，使得扇区中的每个信道在另一个扇区中具有相应的信道。 不同扇区中的信道之间的功率差被维持在预先选择的功率差之内。 单元中的不同通道被分配不同的功率电平。 基于信道反馈信息将无线终端分配给信道。 具有较差信道条件的无线终端分配给具有良好信道条件的无线终端的较高功率信道。 低功率通道通常每个符号时间包括比高功率通道更多的音调。

公开(公告)号：US07386320B2

公开(公告)日：2008-06-10

申请号：US10957192

申请日：2004-10-01

申请人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

发明人： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC分类号： H04Q7/20 ,  H04B7/00 ,  H04M3/42

CPC分类号： H04L12/189 ,  H04W68/00 ,  H04W72/005

摘要： In a wireless communications system, multicast messages are transported to groups of wireless terminals by employing a common control channel to transmit a multicast paging message indicating that multicast traffic data is to be transmitted to a particular group of wireless terminals. In an embodiment of the invention, the essential information transmitted in the common control channel is the identifier of the group of wireless terminals intended to receive the multicast traffic data and the location of a traffic channel on which the multicast traffic is to be transported in a channel resource which may include a representation of bandwidth and time interval. In accordance with an aspect of the invention, the common control channel is associated with a traffic channel in a prescribed fixed manner. Further, the traffic channel used for the purpose of multicast can be the same traffic channel used for the normal point-to-point transmission of traffic data.

摘要翻译： 在无线通信系统中，通过采用公共控制信道将组播消息传送到无线终端组，以将表示组播业务数据要传送到特定无线终端组的组播寻呼消息。 在本发明的一个实施例中，在公共控制信道中发送的基本信息是旨在接收多播业务数据的无线终端组的标识符以及要在其中传输组播业务的业务信道的位置 信道资源，其可以包括带宽和时间间隔的表示。 根据本发明的一个方面，公共控制信道以规定的固定方式与业务信道相关联。 此外，用于组播目的的业务信道可以是用于业务数据的正常点对点传输的相同业务信道。

公开(公告)号：US07379446B2

公开(公告)日：2008-05-27

申请号：US10965011

申请日：2004-10-14

申请人： Rajiv Laroia ,  Frank A. Lane ,  Junyi Li

发明人： Rajiv Laroia ,  Frank A. Lane ,  Junyi Li

IPC分类号： H04J3/00 ,  H04J4/00 ,  H04B7/00

CPC分类号： H04L5/0044 ,  H04L5/0048 ,  H04L5/0053

摘要： Methods and apparatus for using high power narrow signals, e.g., tones, for communicating transmitter information without putting the full transmission power available into the transmitted tone or tones are described. User data is transmitted in parallel with transmitter information in many embodiments with the user data being allocated more than 20% of the transmitter's maximum output power in many cases. By using an amount of power on the tones used to communicate transmitter information while simultaneously transmitting user data with more than 20% of the available transmission power, efficient bandwidth utilization is achieved while still ensuring a high probability that that the transmitter information signals will be received and detectable using simple energy detection techniques and without the need for timing synchronization with the transmitter to be achieved for success interpretation of the transmitter information.

摘要翻译： 描述了使用高功率窄信号（例如音调）用于传送发射机信息而不将全部传输功率可用的传输音调或音调的方法和装置。 在许多实施例中，用户数据与发射机信息并行传输，在许多情况下用户数据被分配超过发射机最大输出功率的20％。 通过对用于传送发射机信息的音调使用一定的功率，同时以超过20％的可用传输功率发送用户数据，实现有效的带宽利用，同时仍然确保发送器信息信号将被接收的高概率， 可以使用简单的能量检测技术进行检测，并且不需要与发射机的定时同步来实现发射机信息的成功解释。

公开(公告)号：US20080112334A1

公开(公告)日：2008-05-15

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 ,  H04B3/10 ,  H04J3/06

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，无线终端可以选择一部分 发送（例如，广播）短消息的时间，可以由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。

公开(公告)号：US20080101447A1

公开(公告)日：2008-05-01

申请号：US11764165

申请日：2007-06-15

申请人： Junyi Li ,  Thomas Richardson ,  Rajiv Laroia

发明人： Junyi Li ,  Thomas Richardson ,  Rajiv Laroia

IPC分类号： H04B1/38 ,  H04L5/16

CPC分类号： H04W4/06 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/261 ,  H04W72/005

摘要： Systems and methodologies are described that facilitate transmitting at least two different types of information in a single signal, whereby the different types of information can be encoded and decoded independently. Thus, changes to one type of information does not affect a second type of information.

公开(公告)号：US20080101264A1

公开(公告)日：2008-05-01

申请号：US11764162

申请日：2007-06-15

申请人： Junyi Li ,  Thomas Richardson ,  Rajiv Laroia

发明人： Junyi Li ,  Thomas Richardson ,  Rajiv Laroia

IPC分类号： H04B7/00

CPC分类号： H04W4/06 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/261 ,  H04W72/005

摘要： Systems and methodologies are described that facilitate transmitting at least two different types of information in a single signal, whereby the different types of information can be encoded and decoded independently. Thus, changes to one type of information does not affect a second type of information.

摘要翻译： 描述了促进在单个信号中发送至少两种不同类型的信息的系统和方法，由此可以独立地对不同类型的信息进行编码和解码。 因此，对一种类型的信息的改变不影响第二类型的信息。