公开(公告)号：US20090224847A1

公开(公告)日：2009-09-10

申请号：US12043869

申请日：2008-03-06

申请人： Juergen Cezanne ,  Saurabh Tavildar ,  Vikram Reddy Anreddy ,  Xinzhou Wu ,  Rajiv Laroia

发明人： Juergen Cezanne ,  Saurabh Tavildar ,  Vikram Reddy Anreddy ,  Xinzhou Wu ,  Rajiv Laroia

IPC分类号： H03H7/18

CPC分类号： H01Q21/24 ,  H01Q3/30 ,  H01Q7/00 ,  H01Q9/16

摘要： A communications device, e.g., a mobile wireless terminal, includes a plurality of antennas having different polarization directions. The plurality of antennas includes a first antenna and second antenna which are operated in a coordinated fashion. During reception a signal received via the first antenna is subjected to a phase shift operation before being combined with a signal received via the second antenna. During transmission a signal to be communicated is subjected to a phase shift operation and the phase shifted signal is transmitted over the first antenna while the non-phase shifted signal is transmitted over the second antenna. The amount of phase shift is a function of the difference in polarization directions between the first and second antennas. The novel antenna configuration facilitates the use of the horizontal polarization direction communications between the communications device and a base station without the need for directionally positioning one or more electrical antennas.

摘要翻译： 诸如移动无线终端的通信设备包括具有不同偏振方向的多个天线。 多个天线包括以协调的方式操作的第一天线和第二天线。 在接收期间，经由第一天线接收的信号在与经由第二天线接收的信号组合之前进行相移操作。 在发送期间，要传送的信号经过相移操作，并且通过第一天线发送相移信号，同时通过第二天线发送非相移信号。 相移量是第一和第二天线之间的偏振方向的差异的函数。 新颖的天线配置有助于在通信设备和基站之间使用水平极化方向通信，而不需要定向地定位一个或多个电天线。

公开(公告)号：US08331946B2

公开(公告)日：2012-12-11

申请号：US12043842

申请日：2008-03-06

申请人： Vikram Reddy Anreddy ,  Saurabh Tavildar ,  Juergen Cezanne ,  Xinzhou Wu ,  Rajiv Laroia

发明人： Vikram Reddy Anreddy ,  Saurabh Tavildar ,  Juergen Cezanne ,  Xinzhou Wu ,  Rajiv Laroia

IPC分类号： H04W72/00 ,  H04W4/00

CPC分类号： H04B7/10 ,  H04B7/0452 ,  H04B7/0469 ,  H04J15/00

摘要： Methods and apparatus which support the use of differently polarized antennas to schedule two or more users employing multiple antennas with different polarization, on the same communications segment, e.g. a time/frequency slab, in either the uplink or downlink are described. Various embodiments include an access node which classifies and schedules wireless terminals to segments as a function of suitability for single polarization direction communications. Some embodiments are directed to methods and apparatus for operating a communications device supporting the use of multiple antennas having different polarization, to implement a polarization based multiple access scheme. Unlike Spatial Division multiple access schemes, the users sharing a communications segment in the polarization based scheme need not be geographically well separated. Another advantage of using the proposed method is that the communications system does not necessarily have to use a complex minimum mean square error receiver or implement successive iteration cancellation techniques, thereby reducing cost and system complexity.

摘要翻译： 支持使用不同极化天线来调度在相同通信段上采用具有不同极化的多个天线的两个或更多个用户的方法和装置，例如， 描述在上行链路或下行链路中的时间/频率块。 各种实施例包括将无线终端分类并将其调度为对于单极化方向通信的适用性的函数的接入节点。 一些实施例涉及用于操作支持使用具有不同极化的多个天线的通信设备的方法和装置，以实现基于偏振的多址方案。 与空分多址方案不同，在基于偏振的方案中共享通信段的用户不需要在地理上很好地分离。 使用所提出的方法的另一个优点是通信系统不一定必须使用复数最小均方误差接收器或实现连续的迭代消除技术，从而降低成本和系统复杂度。

公开(公告)号：US08024003B2

公开(公告)日：2011-09-20

申请号：US12043869

申请日：2008-03-06

申请人： Juergen Cezanne ,  Saurabh Tavildar ,  Vikram Reddy Anreddy ,  Xinzhou Wu ,  Rajiv Laroia

发明人： Juergen Cezanne ,  Saurabh Tavildar ,  Vikram Reddy Anreddy ,  Xinzhou Wu ,  Rajiv Laroia

IPC分类号： H04B7/00 ,  H04B17/02

CPC分类号： H01Q21/24 ,  H01Q3/30 ,  H01Q7/00 ,  H01Q9/16

摘要： A communications device, e.g., a mobile wireless terminal, includes a plurality of antennas having different polarization directions. The plurality of antennas includes a first antenna and second antenna which are operated in a coordinated fashion. During reception a signal received via the first antenna is subjected to a phase shift operation before being combined with a signal received via the second antenna. During transmission a signal to be communicated is subjected to a phase shift operation and the phase shifted signal is transmitted over the first antenna while the non-phase shifted signal is transmitted over the second antenna. The amount of phase shift is a function of the difference in polarization directions between the first and second antennas. The novel antenna configuration facilitates the use of the horizontal polarization direction communications between the communications device and a base station without the need for directionally positioning one or more electrical antennas.

摘要翻译： 诸如移动无线终端的通信设备包括具有不同偏振方向的多个天线。 多个天线包括以协调的方式操作的第一天线和第二天线。 在接收期间，经由第一天线接收的信号在与经由第二天线接收的信号组合之前进行相移操作。 在发送期间，要传送的信号经过相移操作，并且通过第一天线发送相移信号，同时通过第二天线发送非相移信号。 相移量是第一和第二天线之间的偏振方向的差异的函数。 新颖的天线配置有助于在通信设备和基站之间使用水平极化方向通信，而不需要定向地定位一个或多个电天线。

公开(公告)号：US20090227260A1

公开(公告)日：2009-09-10

申请号：US12043842

申请日：2008-03-06

申请人： Vikram Reddy Anreddy ,  Saurabh Tavildar ,  Juergen Cezanne ,  Xinzhou Wu ,  Rajiv Laroia

发明人： Vikram Reddy Anreddy ,  Saurabh Tavildar ,  Juergen Cezanne ,  Xinzhou Wu ,  Rajiv Laroia

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H04B7/10 ,  H04B7/0452 ,  H04B7/0469 ,  H04J15/00

摘要： Methods and apparatus which support the use of differently polarized antennas to schedule two or more users employing multiple antennas with different polarization, on the same communications segment, e.g. a time/frequency slab, in either the uplink or downlink are described. Various embodiments include an access node which classifies and schedules wireless terminals to segments as a function of suitability for single polarization direction communications. Some embodiments are directed to methods and apparatus for operating a communications device supporting the use of multiple antennas having different polarization, to implement a polarization based multiple access scheme. Unlike Spatial Division multiple access schemes, the users sharing a communications segment in the polarization based scheme need not be geographically well separated. Another advantage of using the proposed method is that the communications system does not necessarily have to use a complex minimum mean square error receiver or implement successive iteration cancellation techniques, thereby reducing cost and system complexity.

摘要翻译： 支持使用不同极化天线来调度在相同通信段上采用具有不同极化的多个天线的两个或更多个用户的方法和装置，例如， 描述在上行链路或下行链路中的时间/频率块。 各种实施例包括将无线终端分类并将其调度为对于单极化方向通信的适用性的函数的接入节点。 一些实施例涉及用于操作支持使用具有不同极化的多个天线的通信设备的方法和装置，以实现基于偏振的多址方案。 与空分多址方案不同，在基于偏振的方案中共享通信段的用户不需要在地理上很好地分离。 使用所提出的方法的另一个优点是通信系统不一定必须使用复数最小均方误差接收器或实现连续的迭代消除技术，从而降低成本和系统复杂度。

公开(公告)号：US20090224990A1

公开(公告)日：2009-09-10

申请号：US12043860

申请日：2008-03-06

申请人： Juergen Cezanne ,  Saurabh Tavildar ,  Vikram Reddy Anreddy ,  Xinzhou Wu ,  Rajiv Laroia

发明人： Juergen Cezanne ,  Saurabh Tavildar ,  Vikram Reddy Anreddy ,  Xinzhou Wu ,  Rajiv Laroia

IPC分类号： H01Q21/00

CPC分类号： H01Q21/28 ,  H01Q1/24 ,  H01Q7/00 ,  H01Q9/16 ,  H01Q21/24 ,  H04B7/10

摘要： A communications device, e.g., a mobile wireless terminal, includes a plurality of antennas having different associated polarization directions. The plurality of antennas includes an electrical antenna, e.g., a dipole antenna and a magnetic antenna, e.g., a loop antenna or a slot antenna. In one embodiment the electrical antenna is used for receiving and/or transmitting signals associated with a vertical polarization direction, while the magnetic antenna is used for receiving and/or transmitting signals associated with a horizontal polarization direction in some embodiments different data streams are communicated concurrently via the electrical and magnetic antennas. Methods for operating the communications device to switch between the electrical and magnetic antennas and/or to control reception and/or transmission are described. The novel antenna configuration facilitates the use of the horizontal polarization direction communications between the communications device and a base station without the need for directionally azimuth positioning the magnetic antenna.

摘要翻译： 通信设备，例如移动无线终端，包括具有不同相关偏振方向的多个天线。 多个天线包括电天线，例如偶极天线和磁天线，例如环形天线或缝隙天线。 在一个实施例中，电天线用于接收和/或发送与垂直偏振方向相关联的信号，而在某些实施例中磁性天线用于接收和/或发射与水平极化方向相关的信号，不同的数据流被同时传送 通过电磁天线。 描述了用于操作通信设备在电和天线之间切换和/或控制接收和/或传输的方法。 新颖的天线配置有助于在通信设备和基站之间使用水平极化方向通信，而不需要定向地定位磁性天线。

公开(公告)号：US08694662B2

公开(公告)日：2014-04-08

申请号：US12166594

申请日：2008-07-02

申请人： Xinzhou Wu ,  Saurabh Tavildar ,  Junyi Li ,  Rajiv Laroia

发明人： Xinzhou Wu ,  Saurabh Tavildar ,  Junyi Li ,  Rajiv Laroia

IPC分类号： G06F15/16 ,  H04L1/00

CPC分类号： H04L12/1881 ,  H04L12/1886 ,  H04L12/189 ,  H04W4/08 ,  H04W72/10 ,  H04W84/18

摘要： Methods and apparatus supporting group communications in a peer to peer wireless network are described. Methods and apparatus are directed to implementations with closed groups, e.g., where the number of group members are fixed at a given time and known to one or more members of the group. Various embodiments are well suited to decentralized peer to peer wireless networks including a plurality of individual traffic resources, e.g., traffic slots and/or traffic segments, which may be independently scheduled. Approaches for implementing distributed scheduling for traffic air link resources which may carry group traffic signals and/or peer to peer traffic signals are described. Various aspects are directed to the transmitter side including: group traffic transmission request transmissions, reception of request response signaling, transmitter yielding decisions, group rate determination and/or group traffic data signaling. Other aspects are directed to the receiver side including: reception of group traffic transmission request signals, receiver yielding decisions, transmitting group request responses signals, and/or receiving group traffic signaling.

摘要翻译： 描述了对等无线网络中支持组通信的方法和装置。 方法和装置涉及具有封闭组的实现，例如，其中组成员的数量在给定时间是固定的并且对于该组的一个或多个成员而言是已知的。 各种实施例非常适合于分散的对等无线网络，包括多个单独的业务资源，例如可以独立调度的业务时隙和/或业务段。 描述了可能携带组交通信号和/或对等业务信号的用于业务空中链路资源的分布式调度的方法。 各个方面涉及发射机侧，包括：组业务传输请求传输，请求响应信令的接收，发射机发射决定，组速率确定和/或组业务数据信令。 其他方面针对接收机侧，包括：接收群组业务传输请求信号，接收机产生决定，发送组请求响应信号和/或接收群组业务信令。

公开(公告)号：US08520524B2

公开(公告)日：2013-08-27

申请号：US12267905

申请日：2008-11-10

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： H04W72/1231 ,  H04L43/08 ,  H04W72/1278

摘要： Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a quality of service level from a transmission request response signal and making a decision whether or not to transmit traffic data based on the recovered quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request response signal which is in response to a first traffic transmission request signal, and making a decision, based on the recovered first quality of service level, whether or not to transmit a second transmission request response signal in response to a second traffic transmission request signal. In some embodiments, the phase of the transmission request response signal is used to communicate the quality of service level. The device transmitting the transmission request response may also transmit pilots which can be used as phase reference signals.

摘要翻译： 描述通信决策的方法和装置。 在一些实施例中，一种方法包括从传输请求响应信号中恢复服务质量水平，并基于恢复的服务质量水平决定是否传送业务数据。 在其他实施例中，一种方法包括从响应于第一业务传输请求信号的第一传输请求响应信号恢复第一服务质量水平，并且基于恢复的第一服务质量水平做出决定 响应于第二业务传输请求信号发送第二传输请求响应信号。 在一些实施例中，传输请求响应信号的相位用于传达服务质量水平。 发送发送请求响应的装置也可以发送可用作相位参考信号的导频。

公开(公告)号：US08259743B2

公开(公告)日：2012-09-04

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： H04L12/28

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.

公开(公告)号：US08139531B2

公开(公告)日：2012-03-20

申请号：US12168704

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： H04W4/00

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.

公开(公告)号：US20090019173A1

公开(公告)日：2009-01-15

申请号：US12166634

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： G06F15/16

CPC分类号： H04W72/005

摘要： Methods and apparatus related to broadcasting data in a peer to peer wireless communications network are described. A timing structure is utilized employing slots of a first type which support broadcast traffic transmissions and unicast traffic transmissions and slots of a second type which support unicast traffic transmission but do not support broadcast traffic transmissions. In various embodiments, traffic air link resource scheduling is performed in a decentralized manner on a slot by slot basis. In some such embodiments, a wireless device prior to transmitting a broadcast data traffic signal, transmits a broadcast transmission request signal, sometimes alternatively referred to as a broadcast indicator signal; and a wireless device prior to transmitting a peer to peer unicast signal, transmits a peer to peer traffic transmission request signal. In various embodiments, for slots of the first type, broadcast transmission requests have priority over peer to peer unicast transmission requests.

摘要翻译： 描述了在对等无线通信网络中与广播数据有关的方法和装置。 使用支持广播业务传输和单播业务传输的第一类型的时隙和支持单播业务传输但不支持广播业务传输的第二类型的时隙的定时结构。 在各种实施例中，在逐个基础上以分散的方式执行业务空中链路资源调度。 在一些这样的实施例中，在发送广播数据业务信号之前的无线设备发送广播传输请求信号，有时可替代地称为广播指示符信号; 以及在发送对等单播信号之前的无线设备，发送对等业务传输请求信号。 在各种实施例中，对于第一类型的时隙，广播传输请求具有优先于对等单播传输请求的优先权。