公开(公告)号：US09130621B2

公开(公告)日：2015-09-08

申请号：US14147245

申请日：2014-01-03

Applicant: Broadcom Corporation

Inventor： Krishna Srikanth Gomadam ,  Djordje Tujkovic

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/065

Abstract: Systems using a transmit precoder codebook designed for a four-transmitter (4Tx) antenna configuration are described. The 4Tx antenna configuration is an attractive option for base stations in cellular network environments due to site-acquiring advantages and robust performance. In an embodiment, the transmit precoder codebook can be used for a variety of transmit antenna configurations and has a high resolution to enable beamforming and/or nulling. In another embodiment, the transmit precoder codebook is a two-component codebook, with a first precoder component signaled at a first frequency and a second precoder component signaled at a second higher frequency.

Abstract translation: 描述了使用设计用于四发射机（4Tx）天线配置的发射预编码器码本的系统。 4Tx天线配置是蜂窝网络环境中基站的一个有吸引力的选择，因为站点获取优势和强大的性能。 在一个实施例中，发送预编码器码本可以用于各种发射天线配置，并且具有高分辨率以实现波束成形和/或归零。 在另一实施例中，发送预编码器码本是双分量码本，具有以第一频率发信号的第一预编码器分量和以第二较高频率发信号的第二预编码器分量。

公开(公告)号：US08983002B2

公开(公告)日：2015-03-17

申请号：US13831409

申请日：2013-03-14

Applicant: Broadcom Corporation

Inventor： Krishna Srikanth Gomadam ,  Djordje Tujkovic

IPC: H04L27/00 ,  H04B7/04

CPC classification number: H04W72/048 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L25/03942 ,  H04W72/0446

Abstract: Systems and methods for establishing transmission format parameters between communication devices are provided. In some aspects, a method includes identifying, by a first base station, a first communication session with a first user equipment. A master set of transmission format parameters is shared between the first base station and the first user equipment. The method also includes assigning a first subset of the master set of transmission format parameters to the first communication session. The first subset is specifically assigned to the first communication session and specifies which of the master set of transmission format parameters is allocated for use in the first communication session. The method also includes transmitting an indicator of the first subset to the first user equipment.

Abstract translation: 提供了在通信设备之间建立传输格式参数的系统和方法。 在一些方面，一种方法包括由第一基站识别与第一用户设备的第一通信会话。 在第一基站和第一用户设备之间共享传输格式参数的主组。 该方法还包括将传输格式参数的主集合的第一子集分配给第一通信会话。 第一子集被专门分配给第一通信会话，并且指定哪个主集传输格式参数被分配用于第一通信会话。 该方法还包括将第一子集的指示符发送到第一用户设备。