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    • 72. 发明申请
    • DETERMINATION OF POSITIONS OF WIRELESS TRANSCEIVERS TO BE ADDED TO A WIRELESS COMMUNICATION NETWORK
    • 确定要添加到无线通信网络中的无线收发器的位置
    • WO2012003411A2
    • 2012-01-05
    • PCT/US2011042722
    • 2011-06-30
    • QUALCOMM INCFISCHER SVENAMIN MUHAMMAD AWAISPALANKI RAVI
    • FISCHER SVENAMIN MUHAMMAD AWAISPALANKI RAVI
    • G01S5/10
    • G01S5/10G01S5/0242G01S5/0289H04W64/00
    • Positions of non-reference wireless transceivers to be added to a wireless communication network are determined as follows. Each non-reference wireless transceiver performs measurements of times of arrival (TO A) of signals transmitted by other non-reference wireless transceivers, as well as reference wireless transceivers. Thereafter, time difference of arrival (TDOA) values are computed from at least two types of pairs of measurements as follows: (a) unknown-unknown TDOA values are obtained as differences between TOA measurements of signals transmitted by non- reference wireless transceivers and (b) unknown-known TDOA values are obtained as differences between a TOA measurement of a signal transmitted by a non-reference wireless transceiver and another TOA measurement of another signal transmitted by a reference wireless transceiver. Both types of TDOA values are used to solve simultaneous equations to identify the positions of the non-reference wireless transceivers and optionally times of transmission of the signals by the non-reference wireless transceivers.
    • 非参考无线收发器被添加到无线通信网络的位置如下确定。 每个非参考无线收发器执行由其他非参考无线收发器以及参考无线收发器发射的信号的到达时间(TO A)的测量。 此后,从至少两种类型的测量对计算到达时间差(TDOA)值,如下:(a)获得未知未知TDOA值,作为由非参考无线收发器发送的信号的TOA测量值与( b)获知未知的TDOA值,作为由非参考无线收发器发射的信号的TOA测量与由参考无线收发器发射的另一信号的另一TOA测量之间的差异。 两种类型的TDOA值被用于求解联立方程式以识别非参考无线收发器的位置以及可选地通过非参考无线收发器传输信号的时间。
    • 73. 发明申请
    • INTER -CELL INTERFERENCE CANCELLATION
    • INTERCELL INTERFERENCE CANCELLATION
    • WO2010005639A9
    • 2011-07-07
    • PCT/US2009045195
    • 2009-05-26
    • QUALCOMM INCBUDIANU PETRU CPALANKI RAVI
    • BUDIANU PETRU CPALANKI RAVI
    • H04W72/08H04L5/00H04L25/03
    • H04L1/1812H04L5/006H04L25/03006
    • Communication techniques enable efficient communication to an UE (User Equipment) that is subject to a dominant interference signal that is transmitted by a different base station. Disclosed interference cancellation techniques, both UE-centric and network-centric, are suitable to this situation. These techniques are particularly advantageous when undesirable or difficult to introduce changes in the physical (PHY) and medium access control (MAC) layers at the existing base stations. UE-centric framework refers to an approach largely implemented by UEs to include pico or femto cells. Network-centric framework closed-loop coordination between base stations and UEs mitigate interference thereby improving network performance. In particular, an interfering base-station can help a "victim" UE by adjusting downlink pilot and control power and to adjust traffic data rates responsive to information that the "victim" UEs provide, including information about the interfering link and performance of the cancellation itself sent over the air or using the backhaul.
    • 通信技术使得能够有效地与受不同基站发送的占优势干扰信号的UE(用户设备)通信。 公开的干扰消除技术(以UE为中心和以网络为中心)适用于这种情况。 当不希望或难以在现有基站的物理层(PHY)和介质访问控制(MAC)层中引入改变时,这些技术是特别有利的。 以UE为中心的框架是指由UE实施以包括微微或毫微微小区的一种方法。 基站和UE之间以网络为中心的框架闭环协调减轻了干扰,从而提高了网络性能。 特别地,干扰基站可以通过调整下行链路导频和控制功率来帮助“受害者”UE,并且响应于“受害者”UE提供的信息来调整业务数据速率,包括关于干扰链路和消除性能的信息 本身通过空中传送或使用回传。
    • 76. 发明申请
    • SYSTEM AND METHOD TO ENABLE RESOURCE PARTITIONING IN WIRELESS NETWORKS
    • 在无线网络中启用资源划分的系统和方法
    • WO2009143382A3
    • 2010-08-26
    • PCT/US2009044909
    • 2009-05-21
    • QUALCOMM INCBHATTAD KAPILPALANKI RAVI
    • BHATTAD KAPILPALANKI RAVI
    • H04W72/00
    • H04W72/0406H04W72/0413H04W92/20
    • Systems and methodologies are described that facilitate improved resource partitioning and interference management in a wireless communication system. Techniques are described herein for the transmission and use of various types of signaling, such as Access Request commands, Reverse Link Special Resource Utilization Message (R-SRUM) signaling, Forward Link Special Resource Utilization Message (F-SRUM) signaling, and the like, for managing interference associated with range extension, restricted association networks, and other jamming scenarios. As described herein, downlink resource coordination and interference management are accomplished through the use of Access Request or R-SRUM signaling conducted in a unicast or broadcast fashion, and uplink resource coordination and interference management are accomplished through the use of F-SRUM signaling. As further described herein, a clean communication channel such as a Low Reuse Preamble (LRP) channel can be utilized for interference management signaling and/or leveraged for determining timing of various signaling messages.
    • 描述了有助于改进无线通信系统中的资源划分和干扰管理的系统和方法。 本文描述了用于诸如接入请求命令,反向链路专用资源利用消息(R-SRUM)信令,前向链路专用资源利用消息(F-SRUM)信令等的各种类型的信令的传输和使用的技术 ,用于管理与范围扩展相关的干扰,受限关联网络和其他干扰情况。 如本文所述,通过使用以单播或广播方式进行的接入请求或R-SRUM信令来完成下行链路资源协调和干扰管理,并且通过使用F-SRUM信令来完成上行链路资源协调和干扰管理。 如在此进一步描述的,诸如低重用前导码(LRP)信道的干净通信信道可以用于干扰管理信令和/或用于确定各种信令消息的定时。
    • 79. 发明申请
    • METHOD AND APPARATUS FOR COMMUNICATING IN A DOMINANT INTERFERENCE SCENARIO
    • 用于在主导干扰场景中进行通信的方法和装置
    • WO2010006289A3
    • 2010-05-27
    • PCT/US2009050293
    • 2009-07-10
    • QUALCOMM INCBHATTAD KAPILPALANKI RAVI
    • BHATTAD KAPILPALANKI RAVI
    • H04W48/12H04W72/08
    • H04W72/005H04L1/0003H04L1/0009H04L5/0007H04L5/0053H04L5/0073H04W16/10H04W48/12H04W72/0453H04W72/08H04W84/045
    • Techniques for supporting communication in a dominant interference scenario are described. A user equipment (UE) may communicate with a first base station and may observe high interference from and/or may cause high interference to a second base station. In one design, the first base station may use a first frequency band, which may overlap at least partially with a second frequency band for the second base station and may further extend beyond the second frequency band. The first base station may send at least one synchronization signal and a broadcast channel in a center portion of the first frequency band for use by UEs to detect the first base station. The second frequency band may be non-overlapping with the center portion of the first frequency band. The first base station may also communicate with at least one UE on the first frequency band. In a second design, the UE is aiming to decode received symbols using estimated interference.
    • 描述了支配主导干扰场景中通信的技术。 用户设备(UE)可以与第一基站进行通信,并且可以观察到来自第二基站的高干扰和/或可能对第二基站造成高干扰。 在一种设计中,第一基站可以使用第一频带,其可以至少部分地与第二基站的第二频带重叠,并且可以进一步延伸超过第二频带。 第一基站可以在第一频带的中心部分发送至少一个同步信号和广播信道,供UE使用以检测第一基站。 第二频带可以与第一频带的中心部分不重叠。 第一基站还可以与第一频带上的至少一个UE进行通信。 在第二种设计中,UE旨在使用估计的干扰来解码所接收的符号。