公开(公告)号：US20160099794A1

公开(公告)日：2016-04-07

申请号：US14866318

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Arumugam CHENDAMARAI KANNAN ,  Tao LUO ,  Yongbin WEI ,  Durga Prasad MALLADI

IPC: H04L1/00 ,  H04W74/08 ,  H04B17/345 ,  H04W16/14 ,  H04W72/04

Abstract: In an unlicensed band, different types of interference may be experienced by user equipments (UEs), and a serving evolved Node B (eNB) may not be aware of the interference types affecting a UE. Therefore, aspects presented herein provide UE assisted interference learning, in which the UE detects an interfering signal and reports information such as the interference level and properties of the interfering signal to a serving eNB. Another aspects presented herein provide for an eNB which receives, from one or more UEs, information indicating properties of each of at least one interfering signals experienced by the UEs, such as interference types affecting the UEs. The eNB further uses the information received from the UE, including the wireless technology type to determine the properties of its downlink transmission and the length of the contention window leading up to its downlink transmission.

Abstract translation: 在非许可频带中，用户设备（UE）可能会遇到不同类型的干扰，并且服务演进节点B（eNB）可能不知道影响UE的干扰类型。 因此，本文提出的方面提供UE辅助干扰学习，其中UE检测干扰信号，并向服务eNB报告诸如干扰信号的干扰等级和属性的信息。 本文提供的另一方面提供了一种eNB，其从一个或多个UE接收指示由UE经历的至少一个干扰信号中的每一个的属性的信息，例如影响UE的干扰类型。 eNB进一步使用从UE接收到的信息，包括无线技术类型来确定其下行链路传输的属性以及导致其下行链路传输的竞争窗口的长度。

公开(公告)号：US20150282191A1

公开(公告)日：2015-10-01

申请号：US14639058

申请日：2015-03-04

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Michael Lee MCCLOUD ,  Brian Clarke BANISTER ,  Peter GAAL ,  Aleksandar DAMNJANOVIC ,  Yongbin WEI ,  Hao XU ,  Tingfang JI ,  Siddhartha MALLIK ,  Alexei Yurievitch GOROKHOV ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04B1/7107 ,  H04B7/0632 ,  H04B7/068 ,  H04B7/0684 ,  H04J11/005 ,  H04L1/0026 ,  H04L5/0048 ,  H04W24/10

Abstract: Reported CSI may not reflect non-cancelable CRS interference received from an interfering cell, such as when the CSI is computed when CRS interference is not received. To address the issue, a user equipment (UE) may determine an interference cancelation/suppression efficiency (CSE) associated with canceling/suppressing interference from interfering cells. In addition, based on the determined CSE, a UE may compute CSI such that the CSI reflects the true cancelation efficiency of the UE with respect to interfering cell signals. When computing the CSI based on the determined CSE, the UE may report that the CSI is worse than it is to reflect the UE's true cancelation efficiency with respect to the interfering cell signals.

Abstract translation: 报告的CSI可能不反映从干扰小区接收的不可取消的CRS干扰，例如当没有接收到CRS干扰时计算CSI。 为了解决该问题，用户设备（UE）可以确定与抵消/抑制来自干扰小区的干扰相关联的干扰消除/抑制效率（CSE）。 另外，基于所确定的CSE，UE可以计算CSI，使得CSI相对于干扰小区信号反映UE的真实消除效率。 当基于确定的CSE计算CSI时，UE可以报告CSI比反映UE相对于干扰小区信号的真实消除效率更差。