公开(公告)号：WO2012116007A1

公开(公告)日：2012-08-30

申请号：PCT/US2012/026023

申请日：2012-02-22

Applicant: QUALCOMM INCORPORATED ,  JI, Tingfang ,  PALANKI, Ravi ,  GAAL, Peter ,  XU, Hao ,  WEI, Yongbin

Inventor： JI, Tingfang ,  PALANKI, Ravi ,  GAAL, Peter ,  XU, Hao ,  WEI, Yongbin

IPC: H04W64/00

CPC classification number: H04W64/00 ,  G01S1/20 ,  G01S5/02 ,  H04L5/0048 ,  H04W24/02 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446 ,  H04W88/085

Abstract: A method of wireless communication includes configuring a plurality of remote radio heads (RRHs) to prevent position location reference signal (PRS) transmissions on the same subframes where the macro eNodeB transmits PRS. The configured RRHs each have a same physical cell identity (PCI) as the macro eNodeB. The RRHs communicating in accordance with the configuration.

Abstract translation: 无线通信的方法包括配置多个远程无线电头（RRH），以防止在宏eNodeB发送PRS的相同子帧上的位置定位参考信号（PRS）传输。 配置的RRH每个具有与宏eNodeB相同的物理小区标识（PCI）。 RRH根据配置进行通信。

公开(公告)号：WO2012024346A1

公开(公告)日：2012-02-23

申请号：PCT/US2011/048000

申请日：2011-08-16

Applicant: QUALCOMM INCORPORATED ,  BARBIERI, Alan ,  MALLADI, Durga Prasad ,  WEI, Yongbin ,  BHUSHAN, Naga ,  GAAL, Peter

Inventor： BARBIERI, Alan ,  MALLADI, Durga Prasad ,  WEI, Yongbin ,  BHUSHAN, Naga ,  GAAL, Peter

IPC: H04W72/04

CPC classification number: H04W48/10 ,  H04W16/14 ,  H04W72/0406 ,  H04W74/0833 ,  H04W88/06

Abstract: Techniques are provided for control signaling and channel selection in cognitive Long Term Evolution (LTE). In one example, there is provided a method, operable by a mobile entity, that involves receiving, on a licensed channel, broadcasted channel usage information regarding at least one unlicensed channel used by one or more network nodes. The method further involves: performing a cell search procedure based at least in part on the channel usage information to select a given network node among the one or more network nodes; determining at least one random access parameter to be used in establishing wireless communication with the given network node, the at least one random access parameter being associated with a characteristic of the user device and determining a preferred downlink channel.

Abstract translation: 提供技术用于认知长期演进（LTE）中的控制信令和信道选择。 在一个示例中，提供了一种由移动实体操作的方法，其涉及在许可频道上接收关于由一个或多个网络节点使用的至少一个非许可信道的广播信道使用信息。 所述方法还包括：至少部分地基于所述信道使用信息来执行小区搜索过程，以选择所述一个或多个网络节点中的给定网络节点; 确定要用于建立与所述给定网络节点的无线通信中的至少一个随机接入参数，所述至少一个随机接入参数与所述用户设备的特性相关联并且确定优选下行链路信道。

公开(公告)号：WO2011150298A2

公开(公告)日：2011-12-01

申请号：PCT/US2011/038273

申请日：2011-05-27

Applicant: QUALCOMM Incorporated ,  FAN, Zhifei ,  XU, Hao ,  WEI, Yongbin ,  SENEL, Onur ,  LIU, Zhengwei ,  JAIN, Vikas

Inventor： FAN, Zhifei ,  XU, Hao ,  WEI, Yongbin ,  SENEL, Onur ,  LIU, Zhengwei ,  JAIN, Vikas

IPC: H04W56/00

CPC classification number: H04W56/0045 ,  H04L5/0023 ,  H04L5/0039 ,  H04L27/2636 ,  H04L27/2655 ,  H04W72/1268

Abstract: Certain aspects of the present disclosure propose methods for protecting channel quality indicator (CQI) modulation symbols in a subframe (e.g., a localized frequency division multiplexing (LFDM) subframe). For some aspects, a timing adjustment method may be utilized to adjust time of a UE with respect to an eNodeB. The timing adjustment method may introduce a positive time offset to be used for reducing time mismatch between the UE and the eNodeB. In another aspect, a buffer may be used at the eNodeB to store symbols received by the eNodeB before removing the cyclic prefix information from the subframe. The eNodeB may use the stored symbols and an artificial time delay to ensure that the CQI information is protected. For some aspects, the CQI modulation symbols may not be located at the beginning of an LFDM symbol.

Abstract translation: 本公开的某些方面提出了在子帧（例如，局部频分复用（LFDM）子帧）中保护信道质量指示符（CQI）调制符号的方法。 对于一些方面，可以利用定时调整方法来调整UE相对于eNodeB的时间。 定时调整方法可以引入正时间偏移，以用于减少UE与eNodeB之间的时间失配。 在另一方面，可以在eNodeB处使用缓冲器来存储由eNodeB接收的符号，然后从子帧中删除循环前缀信息。 eNodeB可以使用存储的符号和人造时间延迟来确保CQI信息被保护。 对于一些方面，CQI调制符号可能不位于LFDM符号的开头。

公开(公告)号：WO2011130384A1

公开(公告)日：2011-10-20

申请号：PCT/US2011/032284

申请日：2011-04-13

Applicant: QUALCOMM Incorporated ,  BARBIERI, Alan ,  JI, Tingfang ,  AGASHE, Parag Arun ,  WEI, Yongbin ,  YOO, Taesang ,  LUO, Tao ,  VAJAPEYAM, Madhavan Srinivasan ,  XU, Hao ,  DAMNJANOVIC, Aleksandar

Inventor： BARBIERI, Alan ,  JI, Tingfang ,  AGASHE, Parag Arun ,  WEI, Yongbin ,  YOO, Taesang ,  LUO, Tao ,  VAJAPEYAM, Madhavan Srinivasan ,  XU, Hao ,  DAMNJANOVIC, Aleksandar

IPC: H04L1/00 ,  H04W28/26 ,  H04W28/06 ,  H04W48/08 ,  H04W72/12

CPC classification number: H04L5/0057 ,  H04L1/0026 ,  H04L1/0028 ,  H04W24/00 ,  H04W24/08 ,  H04W28/16 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23

Abstract: Techniques for estimating and reporting channel quality indicator (CQI) are disclosed. Neighboring base stations may cause strong interference to one another and may be allocated different resources, e.g., different subframes. A UE may observe different levels of interference on different resources. In an aspect, the UE may determine a CQI for resources allocated to a base station and having reduced or no interference from at least one interfering base station. In another aspect, the UE may determine multiple CQI for resources of different types and associated with different interference levels. For example, the UE may determine a first CQI based on at least one first subframe allocated to the base station and having reduced or no interference from the interfering base station(s). The UE may determine a second CQI based on at least one second subframe allocated to the interfering base station(s).

Abstract translation: 公开了用于估计和报告信道质量指示符（CQI）的技术。 相邻的基站可能导致彼此的强干扰，并且可以分配不同的资源，例如不同的子帧。 UE可以在不同的资源上观察不同级别的干扰。 在一方面，UE可以为分配给基站并且具有来自至少一个干扰基站的减少或没有干扰的资源确定CQI。 在另一方面，UE可以为不同类型的资源确定多个CQI并且与不同的干扰电平相关联。 例如，UE可以基于分配给基站的至少一个第一子帧并且具有来自干扰基站的减少或没有干扰来确定第一CQI。 UE可以基于分配给干扰基站的至少一个第二子帧来确定第二CQI。

公开(公告)号：WO2011119964A1

公开(公告)日：2011-09-29

申请号：PCT/US2011/030002

申请日：2011-03-25

Applicant: QUALCOMM INCORPORATED ,  YOO, Taesang ,  LUO, Tao ,  WEI, Yongbin ,  MALLADI, Durga Prasad

Inventor： YOO, Taesang ,  LUO, Tao ,  WEI, Yongbin ,  MALLADI, Durga Prasad

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04L5/0073 ,  H04W72/082

Abstract: According to certain aspects, resource blocks used for pysical downlink shared channel (PDSCH) transmissions may be allocated in a manner to manage interference in neighboring cells. According to certain aspects, one or more guard RBs may be utilized when transmitting PDSCH in a first cell an effort to reduce interference by tranmissions in a second cell.

Abstract translation: 根据某些方面，可以以管理相邻小区中的干扰的方式来分配用于物理下行链路共享信道（PDSCH）传输的资源块。 根据某些方面，当在第一小区中发送PDSCH时，可以利用一个或多个保护RB来努力减少第二小区中的传输的干扰。

公开(公告)号：WO2011119765A1

公开(公告)日：2011-09-29

申请号：PCT/US2011/029670

申请日：2011-03-23

Applicant: QUALCOMM INCORPORATED ,  ZHANG, Xiaoxia ,  MALLADI, Durga Prasad ,  WEI, Yongbin ,  LUO, Tao ,  CHEN, Wanshi

Inventor： ZHANG, Xiaoxia ,  MALLADI, Durga Prasad ,  WEI, Yongbin ,  LUO, Tao ,  CHEN, Wanshi

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0048 ,  H04W72/04 ,  H04W72/042

Abstract: In a wireless communication system unused resource elements are utilized to transmit additional pilot and control signals. The additional pilot and control signals may mitigate the impact of interference. The unused resource elements may be in a downlink pilot timeslot (DwPTS) in a time division duplex system.

Abstract translation: 在无线通信系统中，未使用的资源元件用于传输额外的导频和控制信号。 额外的导频和控制信号可以减轻干扰的影响。 未使用的资源元素可以在时分双工系统中的下行链路导频时隙（DwPTS）中。

公开(公告)号：WO2011088144A1

公开(公告)日：2011-07-21

申请号：PCT/US2011/021021

申请日：2011-01-12

Applicant: QUALCOMM INCORPORATED ,  XU, Hao ,  MALLADI, Durga, Prasad ,  WEI, Yongbin

Inventor： XU, Hao ,  MALLADI, Durga, Prasad ,  WEI, Yongbin

IPC: H04L5/00

CPC classification number: H04L5/00 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0064

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which information regarding use of a CDM and FDM structure for multiplexing data on a data channel for uplink for at least one subframe is determined. In addition, the data is multiplexed using the CDM/FDM structure for the at least one subframe based on the determined information.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品，其中确定了关于在至少一个子帧的上行链路的数据信道上复用数据的CDM和FDM结构的使用的信息。 此外，基于所确定的信息，使用用于至少一个子帧的CDM / FDM结构来复用数据。

公开(公告)号：WO2011022404A3

公开(公告)日：2011-02-24

申请号：PCT/US2010/045765

申请日：2010-08-17

Applicant: QUALCOMM Incorporated ,  ZHANG, Xiaoxia ,  MALLADI, Durga Prasad ,  WEI, Yongbin ,  LUO, Tao ,  XU, Hao ,  DAMNJANOVIC, Aleksandar

Inventor： ZHANG, Xiaoxia ,  MALLADI, Durga Prasad ,  WEI, Yongbin ,  LUO, Tao ,  XU, Hao ,  DAMNJANOVIC, Aleksandar

IPC: H04L25/02 ,  H04B1/707 ,  H04W48/12 ,  H04W72/04

Abstract: A method, an apparatus, and a computer program product for receiving a signal including components from a plurality of cells, estimating a channel from the received signal using one or more channel estimation schemes, removing a component signal using the estimated channel from the received signal to generate a processed signal and detecting a residual signal in the processed signal.

公开(公告)号：WO2008014522A2

公开(公告)日：2008-01-31

申请号：PCT/US2007/074775

申请日：2007-07-30

Applicant: QUALCOMM Incorporated ,  BHUSHAN, Naga ,  GAAL, Peter ,  WEI, Yongbin

Inventor： BHUSHAN, Naga ,  GAAL, Peter ,  WEI, Yongbin

IPC: H04L27/26 ,  H03M13/15

CPC classification number: H04L5/0094 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/261

Abstract: Embodiments disclosed herein relate to preamble configuration in wireless communication systems (e.g., UHDR-DO type systems). Disclosed embodiments disclose receiving a plurality of information bits, generating a plurality of preamble codewords based on a determined a set of monitored MAC_IDs, correlating the information bits with each of the plurality of preamble codewords, determining if a maximum correlation value exceeds a threshold, and transmitting at least one of the preamble codewords if the threshold is exceeded.

Abstract translation: 本文公开的实施例涉及无线通信系统（例如，UHDR-DO型系统）中的前导码配置。 公开的实施例公开了接收多个信息比特，基于所确定的一组被监控的MAC_ID来生成多个前导码字，将信息比特与多个前导码字中的每一个相关联，确定最大相关值是否超过阈值;以及 如果超过阈值，则发送至少一个前导码字。

公开(公告)号：WO2006105309A1

公开(公告)日：2006-10-05

申请号：PCT/US2006/011670

申请日：2006-03-29

Applicant: QUALCOMM INCORPORATED ,  WEI, Yongbin ,  KIM, Byoung-Hoon ,  MALLADI, Durga Prasad

Inventor： WEI, Yongbin ,  KIM, Byoung-Hoon ,  MALLADI, Durga Prasad

IPC: H04L25/03

CPC classification number: H04L25/03063 ,  H04L25/03057 ,  H04L25/03159

Abstract: Techniques for performing decision feedback equalization are described. A feed-forward filter response and a feedback filter response are derived based on a channel estimate and a reliability parameter and further without constraint on the feedback filter response or with a constraint of no feedback for an on-time sample. The reliability parameter is indicative of the reliability of the feedback used for equalization and may be frequency dependent or frequency invariant. Different feed-forward and feedback filter responses may be derived with different constraints on the feedback filter and different assumptions for the reliability parameter. Equalization is performed with the feed-forward and feedback filter responses. If equalization is performed for multiple iterations then, for each iteration, the reliability parameter may be updated, the feed-forward and feedback filter responses may be derived based on the updated reliability parameter, and equalization may be performed with the filter responses for the iteration.

Abstract translation: 描述用于执行判决反馈均衡的技术。 基于信道估计和可靠性参数导出前馈滤波器响应和反馈滤波器响应，并且进一步而不受反馈滤波器响应的约束或者对于准时采样没有反馈的约束。 可靠性参数表示用于均衡的反馈的可靠性，并且可以是频率依赖的或频率不变的。 不同的前馈和反馈滤波器响应可以通过反馈滤波器的不同约束和可靠性参数的不同假设得出。 使用前馈和反馈滤波器响应执行均衡。 如果对多次迭代执行均衡，那么对于每个迭代，可以更新可靠性参数，可以基于更新的可靠性参数导出前馈和反馈滤波器响应，并且可以用迭代的滤波器响应来执行均衡 。