公开(公告)号：US20150117470A1

公开(公告)日：2015-04-30

申请号：US14071037

申请日：2013-11-04

Applicant: Broadcom Corporation

Inventor： Timothy Andrew Ryan ,  Shue-Lee Chang ,  Victor Simileysky

IPC: H04L29/06

CPC classification number: H04L69/04

Abstract: Aspects of efficient signal compression format schemes are described. In various embodiments, samples are grouped into one or more blocks. One or more scaling factors are determined for the samples in the one or more blocks. In some cases, a block scaling factor is determined for each block. Further, in some embodiments, if a unique scaling factor exists among samples in a block, the position of the sample is identified. In turn, sign extension bits are scaled from the one or more blocks, and samples in the one or more blocks are quantized. In one embodiment, based on a number of sign extension bits scaled from the block and whether the unique scaling factor exists, a scaling code word is encoded for the block. In other embodiments, implicity, adaptive scaling, and/or adaptive quantization, for example, are used to increase the performance of the compression schemes.

Abstract translation: 描述有效信号压缩格式方案的方面。 在各种实施例中，样本被分组成一个或多个块。 确定一个或多个块中的样本的一个或多个缩放因子。 在某些情况下，为每个块确定块缩放因子。 此外，在一些实施例中，如果在块中的样本之间存在唯一的缩放因子，则识别样本的位置。 反过来，符号扩展位从一个或多个块缩放，并且一个或多个块中的采样被量化。 在一个实施例中，基于从块定标的多个符号扩展位，以及是否存在唯一的缩放因子，对该块编码缩放码字。 在其他实施例中，例如，使用隐含性，自适应缩放和/或自适应量化来增加压缩方案的性能。

公开(公告)号：US09749050B2

公开(公告)日：2017-08-29

申请号：US14624114

申请日：2015-02-17

Applicant: BROADCOM CORPORATION

Inventor： Lowell D. Lamb ,  Amit Oren ,  Timothy Andrew Ryan

IPC: H04B10/27 ,  H04B10/2575

CPC classification number: H04B10/25752 ,  H04B10/27 ,  H04W88/00 ,  H04W88/085

Abstract: A system for providing a reduced common public radio interface (CPRI) framelet link includes one or more cellular towers, each cellular tower including one or more cellular antennas and coupled to a first short CPRI fiber link. An access subsystem is coupled to a baseband pool. The access subsystem is coupled to the first short CPRI fiber link via a first framelet block, and the first framelet block facilitates interfacing the first short CPRI fiber link to the access subsystem.

公开(公告)号：US09215297B2

公开(公告)日：2015-12-15

申请号：US14071037

申请日：2013-11-04

Applicant: Broadcom Corporation

Inventor： Timothy Andrew Ryan ,  Shue-Lee Chang ,  Victor Simileysky

IPC: H04L29/06

CPC classification number: H04L69/04

Abstract: Aspects of efficient signal compression format schemes are described. In various embodiments, samples are grouped into one or more blocks. One or more scaling factors are determined for the samples in the one or more blocks. In some cases, a block scaling factor is determined for each block. Further, in some embodiments, if a unique scaling factor exists among samples in a block, the position of the sample is identified. In turn, sign extension bits are scaled from the one or more blocks, and samples in the one or more blocks are quantized. In one embodiment, based on a number of sign extension bits scaled from the block and whether the unique scaling factor exists, a scaling code word is encoded for the block. In other embodiments, implicity, adaptive scaling, and/or adaptive quantization, for example, are used to increase the performance of the compression schemes.

Abstract translation: 描述有效信号压缩格式方案的方面。 在各种实施例中，样本被分组成一个或多个块。 确定一个或多个块中的样本的一个或多个缩放因子。 在某些情况下，为每个块确定块缩放因子。 此外，在一些实施例中，如果在块中的样本之间存在唯一的缩放因子，则识别样本的位置。 反过来，符号扩展位从一个或多个块缩放，并且一个或多个块中的采样被量化。 在一个实施例中，基于从块定标的多个符号扩展位，以及是否存在唯一的缩放因子，对该块编码缩放码字。 在其他实施例中，例如，使用隐含性，自适应缩放和/或自适应量化来增加压缩方案的性能。