公开(公告)号：US20140314166A1

公开(公告)日：2014-10-23

申请号：US14256712

申请日：2014-04-18

Applicant: Broadcom Corporation

Inventor： Krishna GOMADAM ,  Djordje TUJKOVIC

IPC: H04B7/04

CPC classification number: H04B7/0482 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0639 ,  H04B7/0645

Abstract: Embodiments recognize that Multi-User Multiple Input Multiple Output (MU-MIMO) performance can be greatly enhanced if additional parameters are provided to the User Equipment (UE) during link adaptation and/or data demodulation. Recognizing the overhead that such signaling entails, embodiments provide MU-MIMO enhancement solutions that identify and signal only those parameters that can result in a large gain improvement when known at the UE. In an embodiment, the signaling rate of information can be adapted to channel and deployment conditions. In another embodiment, different parameters, which can vary according to different time scales, are signaled at different rates to the UE.

Abstract translation: 实施例认识到，如果在链路自适应和/或数据解调期间向用户设备（UE）提供附加参数，则可以极大地增强多用户多输入多输出（MU-MIMO）性能。 认识到这种信令所涉及的开销，实施例提供了MU-MIMO增强解决方案，其识别并且仅信令在UE处已知时可能导致大的增益改善的那些参数。 在一个实施例中，信息的信令速率可以适应于信道和部署条件。 在另一个实施例中，可以根据不同时间尺度而变化的不同参数以与UE不同的速率发信号通知。

公开(公告)号：US20140362941A1

公开(公告)日：2014-12-11

申请号：US14298358

申请日：2014-06-06

Applicant: Broadcom Corporation

Inventor： Krishna GOMADAM ,  Djordje TUJKOVIC

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0647 ,  H04L25/03343 ,  H04L25/03898

Abstract: Embodiments provide approaches for sub-sampling a two-component precoder codebook to reduce the overhead associated with signaling the codebook in periodic Channel Stale Information (CSI) reports from a user equipment (UE) to a base station. In one embodiment, a first component of the codebook is sub-sampled to accommodate a payload capacity of a Physical Uplink Control Channel (PUCCH) CSI Report of Type 1. In another embodiment, both the first component and the second component of the codebook are sub-sampled to accommodate a maximum payload capacity associated with a PUCCH CSI report.

Abstract translation: 实施例提供了用于对双分量预编码器码本进行子采样以减少与用户设备（UE）到基站的周期性信道暂停信息（CSI）报告中的码本的信令相关联的开销的方法。 在一个实施例中，码本的第一分量被子采样以适应类型1的物理上行链路控制信道（PUCCH）CSI报告的有效载荷容量。在另一个实施例中，码本的第一分量和第二分量都是 子采样以适应与PUCCH CSI报告相关联的最大有效载荷容量。

公开(公告)号：US20140247778A1

公开(公告)日：2014-09-04

申请号：US14189661

申请日：2014-02-25

Applicant: Broadcom Corporation

Inventor： Krishna GOMADAM

IPC: H04W72/04

CPC classification number: H04L5/0051 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094 ,  H04W8/22 ,  H04W28/18

Abstract: Embodiments provide systems and methods for adaptive reference signal mapping in wireless multi-access communication networks, including LTE, WLAN, WiMAX, Bluetooth, etc. In an embodiment, the reference signal mapping configuration is user equipment (UE) specific and can be configured semi-statically or dynamically according to one or more communication related parameters of the UE. The one or more parameters can include, without limitation, a modulation scheme used for communication with the UE, a modulation and coding scheme (MCS) used for communication with the UE, a distance of the UE relative to the base station, an antenna configuration at the UE, interference management capability of the UE, and a rank of the UE.

Abstract translation: 实施例提供了包括LTE，WLAN，WiMAX，蓝牙等在内的无线多址通信网络中的自适应参考信号映射的系统和方法。在一个实施例中，参考信号映射配置是特定的用户设备（UE），并且可以被配置为半 静态或动态地根据UE的一个或多个通信相关参数。 一个或多个参数可以包括但不限于用于与UE通信的调制方案，用于与UE通信的调制和编码方案（MCS），UE相对于基站的距离，天线配置 在UE处，UE的干扰管理能力以及UE的等级。