公开(公告)号：US20150131573A1

公开(公告)日：2015-05-14

申请号：US14476476

申请日：2014-09-03

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Tao LUO ,  Yongbin WEI

IPC: H04B15/00 ,  H04W24/02 ,  H04L5/00

CPC classification number: H04B15/00 ,  H04L5/003 ,  H04W24/02 ,  H04W72/1226 ,  H05K999/99

Abstract: Suppression of serving cell transmissions directed to second-served UEs may improve channel estimation of a serving cell or a neighbor cell. This may include using scheduling information for second-served UEs to suppress serving cell signals intended for second-served UEs having overlapping MIMO transmissions. Alternatively, this scheduling information may aid in suppressing a serving cell signal for a second-served UE to improve channel estimation of a neighbor cell. Various embodiments described herein, include implementations and techniques to aid channel estimation, and signal scheduling information to a first-served UE to aid in suppression of serving cell signals for second-served UEs.

Abstract translation: 抑制针对第二服务UE的服务小区传输可以改善服务小区或邻居小区的信道估计。 这可以包括使用第二服务UE的调度信息来抑制针对具有重叠MIMO传输的第二服务UE的服务小区信号。 或者，该调度信息可以有助于抑制第二服务UE的服务小区信号，以改善相邻小区的信道估计。 本文描述的各种实施例包括有助于信道估计的实现和技术，以及信号调度信息给先前服务的UE，以帮助抑制服务小区信号用于秒服务的UE。

公开(公告)号：US20140301309A1

公开(公告)日：2014-10-09

申请号：US14246022

申请日：2014-04-04

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Arumugam CHENDAMARAI KANNAN ,  Siddhartha MALLIK ,  Makesh Pravin JOHN WILSON ,  Taesang YOO ,  Yi HUANG

IPC: H04W24/02 ,  H04L5/00

CPC classification number: H04W24/02 ,  H04J11/004 ,  H04J11/005 ,  H04L5/0058

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus reduces inference in a received signal. The apparatus receives a signal including transmissions from a plurality of cells. The apparatus determines transmission parameter hypotheses associated with the plurality of cells. Each transmission parameter hypothesis from the transmission parameter hypotheses includes a set of transmission parameters associated with all the cells from the plurality cells. The apparatus selects at least one transmission parameter hypothesis based on a first metric applied to each hypothesis. The apparatus refines transmission parameters associated with at least one cell from the plurality of cells. The refining includes improving an accuracy of the transmission parameters associated with the at least one cell based on a second metric associated with each cell individually.

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。 该装置减少接收信号中的推断。 该装置接收包括来自多个小区的传输的信号。 该装置确定与多个小区相关联的传输参数假设。 来自传输参数假设的每个传输参数假设包括与来自多个小区的所有小区相关联的一组传输参数。 该装置基于应用于每个假设的第一度量来选择至少一个传输参数假设。 所述设备优化与所述多个小区中的至少一个小区相关联的传输参数。 精炼包括基于与每个单元分别相关联的第二度量提高与至少一个单元相关联的传输参数的精度。

公开(公告)号：US20140301292A1

公开(公告)日：2014-10-09

申请号：US14199991

申请日：2014-03-06

Applicant: QUALCOMM Incorporated

Inventor： Wanshi CHEN ,  Tao LUO ,  Hao XU ,  Taesang YOO ,  Peter GAAL ,  Yongbin WEI ,  Durga Prasad MALLADI

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B1/707 ,  H04B7/0617 ,  H04J11/0023 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0062 ,  H04L5/0066 ,  H04L5/0073 ,  H04L5/0092 ,  H04W52/244 ,  H04W72/0426

Abstract: For an enhanced physical downlink control channel (EPDCCH), unlimited traffic-to-pilot ratio (TPR) variations across resource elements of a physical resource block (PRB) pair is problematic because of the detrimental affect the variations will have on the ability of a user equipment (UE) to perform inter-cell/intra-cell interference suppression (IS) and/or interference cancellation (IC) on EPDCCH of an interfering cell. A TPR limitation is placed on EPDCCH to facilitate IS/IC without causing practical limitations on EPDCCH management by an eNB. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided. The apparatus identifies a plurality of resource elements of at least one PRB pair for transmitting one or more control channels, divides the plurality of identified resource elements into one or more groups, and restricts a plurality of resource elements in a respective group to a TPR.

Abstract translation: 对于增强的物理下行链路控制信道（EPDCCH），物理资源块（PRB）对的资源元素之间的无限的业务导频比（TPR）变化是有问题的，因为不利的变化将对一个 用户设备（UE）在干扰小区的EPDCCH上执行小区间/小区内干扰抑制（IS）和/或干扰消除（IC）。 在EPDCCH上设置TPR限制以便于IS / IC，而不会对eNB的EPDCCH管理造成实际限制。 因此，提供了一种用于无线通信的方法，装置和计算机程序产品。 该装置识别用于发送一个或多个控制信道的至少一个PRB对的多个资源元素，将多个所识别的资源元素划分为一个或多个组，并将相应组中的多个资源元素限制为TPR。

公开(公告)号：US20140204857A1

公开(公告)日：2014-07-24

申请号：US14150632

申请日：2014-01-08

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha MALLIK ,  Taesang YOO ,  Tao LUO ,  Yongbin WEI

IPC: H04L5/00 ,  H04L1/00

CPC classification number: H04L1/0003 ,  H04J11/0036 ,  H04J11/005 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0048 ,  H04L1/20 ,  H04L25/0328 ,  H04L25/03305 ,  H04L2001/0092 ,  H04W24/10 ,  H04W28/04 ,  H04W72/08 ,  H04W72/1236

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one configuration, the apparatus may be a UE. The UE determines an MCS that would facilitate interference suppression of an interfering first cell transmission from a first cell when decoding a second cell transmission from a second cell at the UE. The interfering first cell transmission is a transmission unintended for the UE. The second cell transmission is a transmission intended for the UE. The UE transmits information indicating the determined MCS for the first cell. The UE receives a transmission including the second cell transmission from the second cell and the interfering first cell transmission from the first cell. The UE demodulates and/or decodes the second cell transmission from the received transmission based on the determined MCS.

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。 在一种配置中，该设备可以是UE。 当从UE处的第二小区解码第二小区传输时，UE确定便于来自第一小区的干扰第一小区传输的干扰抑制的MCS。 干扰第一小区传输是针对UE的无线传输。 第二小区传输是用于UE的传输。 UE发送指示用于第一小区的确定的MCS的信息。 UE从第二小区接收包括第二小区传输的传输和来自第一小区的干扰第一小区传输。 基于所确定的MCS，UE从接收到的传输中解调和/或解码第二小区传输。

公开(公告)号：US20130336193A1

公开(公告)日：2013-12-19

申请号：US13920036

申请日：2013-06-17

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Yongbin WEI ,  Peter GAAL ,  Hao XU ,  Taesang YOO ,  Siddhartha MALLIK ,  Makesh Pravin JOHN WILSON ,  Naga BHUSHAN ,  Durga Prasad MALLADI ,  Tingfang JI ,  Gavin Bernard HORN

IPC: H04W16/14

CPC classification number: H04L12/189 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0632 ,  H04B17/336 ,  H04L1/0026 ,  H04L1/0067 ,  H04L1/0075 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0091 ,  H04W16/14 ,  H04W72/082

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals. The method includes receiving, from a serving evolved Node B (eNB), information that includes one or more transmission characteristics of at least one non-serving cell and performing at least one of interference cancellation, demodulation, or provides an improved channel quality indicator (CQI) based on the received 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。 该装置可以是获取关于干扰非服务小区的信息并使用该信息来改善服务小区信号的解码的UE。 该方法包括：从服务演进节点B（eNB）接收包括至少一个非服务小区的一个或多个传输特性的信息，并执行干扰消除，解调中的至少一个或提供改进的信道质量指示符（ CQI）。