公开(公告)号：WO2009111762A3

公开(公告)日：2009-11-12

申请号：PCT/US2009036429

申请日：2009-03-06

Applicant: QUALCOMM INC ,  ANREDDY VIKRAM REDDY ,  TAVILDAR SAURABH ,  CEZANNE JUERGEN ,  WU XINZHOU ,  LAROIA RAJIV

Inventor： ANREDDY VIKRAM REDDY ,  TAVILDAR SAURABH ,  CEZANNE JUERGEN ,  WU XINZHOU ,  LAROIA RAJIV

IPC: H04B7/10 ,  H04B7/04

CPC classification number: H04B7/10 ,  H04B7/0452 ,  H04B7/0469 ,  H04J15/00

Abstract: 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.

Abstract translation: 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。 与空间分多址方案不同，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：WO2009111759A1

公开(公告)日：2009-09-11

申请号：PCT/US2009/036425

申请日：2009-03-06

Applicant: QUALCOMM INCORPORATED ,  CEZANNE, Juergen ,  TAVILDAR, Saurabh ,  ANREDDY, Vikram, Reddy ,  WU, Xinzhou ,  LAROIA, Rajiv

Inventor： CEZANNE, Juergen ,  TAVILDAR, Saurabh ,  ANREDDY, Vikram, Reddy ,  WU, Xinzhou ,  LAROIA, Rajiv

IPC: H01Q21/24 ,  H04B7/10 ,  H01Q21/28 ,  H04Q1/24

CPC classification number: H01Q21/28 ,  H01Q1/24 ,  H01Q7/00 ,  H01Q9/16 ,  H01Q21/24 ,  H04B7/10

Abstract: 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.

Abstract translation: 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，以及例如环形天线或缝隙天线的磁性天线。 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，而磁性天线用于接收和/或发送与水平偏振方向相关的信号。 在一些实施例中，经由电和磁天线同时传送不同的数据流。 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：WO2009111758A1

公开(公告)日：2009-09-11

申请号：PCT/US2009/036424

申请日：2009-03-06

Applicant: QUALCOMM Incorporated ,  CEZANNE, Juergen ,  TAVILDAR, Saurabh ,  ANREDDY, Vikram Reddy ,  WU, Xinzhou ,  LAROIA, Rajiv

Inventor： CEZANNE, Juergen ,  TAVILDAR, Saurabh ,  ANREDDY, Vikram Reddy ,  WU, Xinzhou ,  LAROIA, Rajiv

IPC: H01Q3/30 ,  H01Q7/00 ,  H01Q9/16 ,  H01Q21/24

CPC classification number: H01Q21/24 ,  H01Q3/30 ,  H01Q7/00 ,  H01Q9/16

Abstract: 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.

Abstract translation: 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：WO2008076983A3

公开(公告)日：2008-06-26

申请号：PCT/US2007/087796

申请日：2007-12-17

Applicant: QUALCOMM INCORPORATED ,  DAS, Arnab ,  HANDE, Prashanth ,  WU, Xinzhou ,  CEZANNE, Juergen ,  RANGAN, Sundeep

Inventor： DAS, Arnab ,  HANDE, Prashanth ,  WU, Xinzhou ,  CEZANNE, Juergen ,  RANGAN, Sundeep

IPC: H04L1/00 ,  H04B7/005

Abstract: Systems and methodologies are described that facilitate utilizing power-based rate signaling for uplink scheduling in a wireless communications system. A maximum nominal power (e.g., relative maximum transmit power that may be employed on an uplink) may be known to both a base station and a mobile device. For example, the base station and the mobile device may agree upon a maximum nominal power. According to another example, signaling related to a maximum nominal power for utilization on the uplink may be provided over a downlink. Further, selection of a code rate, modulation scheme, and the like for the uplink may be effectuated by a mobile device as a function of the maximum nominal power. Moreover, such selection may be based at least in part upon an interference cost, which may be evaluated by the mobile device.

公开(公告)号：WO2023087203A1

公开(公告)日：2023-05-25

申请号：PCT/CN2021/131428

申请日：2021-11-18

Applicant: QUALCOMM INCORPORATED ,  IBRAHIM, Abdelrahman Mohamed Ahmed Mohamed ,  CEZANNE, Juergen ,  WANG, Renqiu ,  ZHANG, Danlu ,  BHUSHAN, Naga ,  SEN, Pinar ,  PARK, Seyong ,  ZHANG, Yu ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  MUKKAVILLI, Krishna Kiran ,  KWON, Hwan Joon ,  JI, Tingfang

Inventor： IBRAHIM, Abdelrahman Mohamed Ahmed Mohamed ,  CEZANNE, Juergen ,  WANG, Renqiu ,  ZHANG, Danlu ,  BHUSHAN, Naga ,  SEN, Pinar ,  PARK, Seyong ,  ZHANG, Yu ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  MUKKAVILLI, Krishna Kiran ,  KWON, Hwan Joon ,  JI, Tingfang

IPC: H04B7/02

Abstract: Methods, systems, and devices for wireless communications are described. A transmitted may use a closed loop precoder for line-of-sight (LOS) multiple-input multiple-output (MIMO) communications that uses information such as distance feedback or LOS MIMO channel state feedback. A closed loop precoder may be associated with less overhead than a precoder based on full channel knowledge, such as an SVD precoder. A receiver may estimate a channel based on channel state information reference signals transmitted by the transmitter and calculate a spectral efficiency for one or more precoders of a set of precoders associated with the channel for a LOS MIMO mode. The receiver may send feedback to the transmitter that indicates a selected precoder of the set of LOS MIMO precoders based on the calculated spectral efficiencies. The transmitter may precode messages using the reported closed loop precoder.

公开(公告)号：WO2009111762A2

公开(公告)日：2009-09-11

申请号：PCT/US2009/036429

申请日：2009-03-06

Applicant: QUALCOMM INCORPORATED ,  ANREDDY, Vikram, Reddy ,  TAVILDAR, Saurabh ,  CEZANNE, Juergen ,  WU, Xinzhou ,  LAROIA, Rajiv

Inventor： ANREDDY, Vikram, Reddy ,  TAVILDAR, Saurabh ,  CEZANNE, Juergen ,  WU, Xinzhou ,  LAROIA, Rajiv

IPC: H04B7/10

CPC classification number: H04B7/10 ,  H04B7/0452 ,  H04B7/0469 ,  H04J15/00

Abstract: 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.

Abstract translation: 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。 与空间分多址方案不同，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：WO2008076983A2

公开(公告)日：2008-06-26

申请号：PCT/US2007087796

申请日：2007-12-17

Applicant: QUALCOMM INC ,  DAS ARNAB ,  HANDE PRASHANTH ,  WU XINZHOU ,  CEZANNE JUERGEN ,  RANGAN SUNDEEP

Inventor： DAS ARNAB ,  HANDE PRASHANTH ,  WU XINZHOU ,  CEZANNE JUERGEN ,  RANGAN SUNDEEP

CPC classification number: H04L1/0015 ,  H04L1/0002 ,  H04L1/0033 ,  H04W52/146 ,  H04W52/242 ,  H04W52/243 ,  H04W52/367

Abstract: Systems and methodologies are described that facilitate utilizing power-based rate signaling for uplink scheduling in a wireless communications system. A maximum nominal power (e.g., relative maximum transmit power that may be employed on an uplink) may be known to both a base station and a mobile device. For example, the base station and the mobile device may agree upon a maximum nominal power. According to another example, signaling related to a maximum nominal power for utilization on the uplink may be provided over a downlink. Further, selection of a code rate, modulation scheme, and the like for the uplink may be effectuated by a mobile device as a function of the maximum nominal power. Moreover, such selection may be based at least in part upon an interference cost, which may be evaluated by the mobile device.

Abstract translation: 描述了有助于在无线通信系统中利用基于功率的速率信令用于上行链路调度的系统和方法。 基站和移动设备可以知道最大额定功率（例如，可以在上行链路上采用的相对最大发射功率）。 例如，基站和移动设备可以达成最大额定功率。 根据另一示例，可以在下行链路上提供与在上行链路上的最大标称功率有关的信令。 此外，用于上行链路的码率，调制方案等的选择可以由移动设备作为最大额定功率的函数来实现。 此外，这样的选择可以至少部分地基于可由移动设备评估的干扰成本。

公开(公告)号：WO2023019460A1

公开(公告)日：2023-02-23

申请号：PCT/CN2021/113193

申请日：2021-08-18

Applicant: QUALCOMM INCORPORATED ,  IBRAHIM, Abdelrahman Mohamed Ahmed Mohamed ,  CEZANNE, Juergen ,  BHUSHAN, Naga ,  WANG, Renqiu ,  MUKKAVILLI, Krishna Kiran ,  SEN, Pinar ,  PARK, Seyong ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu

Inventor： IBRAHIM, Abdelrahman Mohamed Ahmed Mohamed ,  CEZANNE, Juergen ,  BHUSHAN, Naga ,  WANG, Renqiu ,  MUKKAVILLI, Krishna Kiran ,  SEN, Pinar ,  PARK, Seyong ,  ABDELGHAFFAR, Muhammad Sayed Khairy ,  ZHANG, Yu

IPC: H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A transmitter may select a precoder from a codebook for precoding one or more signals for transmission to a receiver. The transmitter may select the precoder from the codebook based on antenna configurations at the transmitter and the receiver. The precoder may be constructed using one or more Slepian sequences. In some implementations, the Slepian sequences may be associated with a quantity of transmit antennas at the transmitter. For instance, a length of each Slepian sequence may correspond to (for example, be equal to) a quantity of transmit antennas at the transmitter. Further, the Slepian sequences may be associated with a bandwidth within which to concentrate the one or more signals. Once the transmitter selects the precoder, the transmitter may precode the one or more signals and transmit the precoded signals to the receiver.

公开(公告)号：WO2011106633A1

公开(公告)日：2011-09-01

申请号：PCT/US2011/026226

申请日：2011-02-25

Applicant: QUALCOMM INCORPORATED ,  LAROIA, Rajiv ,  CEZANNE, Juergen ,  JOVICIC, Aleksandar

Inventor： LAROIA, Rajiv ,  CEZANNE, Juergen ,  JOVICIC, Aleksandar

IPC: H03D3/00 ,  H03D7/18

CPC classification number: H03D3/009 ,  H03D3/008 ,  H03D7/18

Abstract: A wireless communications device, e.g., a mobile node supporting direct peer to peer communications, performs a self-calibration of one or more of: receiver IQ imbalance, transmitter IQ imbalance, receiver DC offset, and transmitter DC offset. The wireless communications device, operating in calibration mode, intentionally sets the oscillator frequency used for downconversion in its receiver module to a different frequency than the oscillator frequency used for upconversion in its transmitter module. A first baseband signal, e.g., a single tone test signal, is input to the transmitter module and an upconverted transmit signal is generated. The transmit signal is routed via a feedback loop to the receiver, which performs a downconversion operation. Power and/or phase measurements of the signals output from the downcoversion are used to determine IQ imbalance compensation information and DC offset compensation information. The determined compensation information is used subsequently when operating in a communications mode of operation.

Abstract translation: 无线通信设备，例如支持直接对等通信的移动节点，执行接收机IQ不平衡，发射机IQ不平衡，接收机DC偏移和发射机DC偏移中的一个或多个的自校准。 在校准模式下工作的无线通信设备将其接收机模块中用于下变频的振荡器频率有意地设置为与发射机模块中用于上变频的振荡器频率不同的频率。 第一基带信号，例如单音测试信号被输入到发射机模块，并产生上变频的发射信号。 发送信号通过反馈回路路由到接收机，接收机执行下变频操作。 用于从下变频输出的信号的功率和/或相位测量用于确定IQ不平衡补偿信息和DC偏移补偿信息。 当在通信操作模式下操作时，所确定的补偿信息被随后使用。