Efficient signal compression format schemes

摘要

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.

主权项

1. A method for communications, comprising:
grouping, with circuitry, a set of samples into a block; determining, with the circuitry, at least one scaling factor for the set of samples in the block, the scaling factor being indicative of a number of redundant signs bits that can be removed from each sample in the block; determining, by the circuitry, whether a unique scaling factor exists among the samples in the block; scaling, with the circuitry, sign extension bits from the set of samples in the block using the scaling factor to provide a set of scaled samples in the block; quantizing, with the circuitry, the set of scaled samples in the block to provide a set of quantized samples in the block; and encoding, with the circuitry, a scaling code word for the block based on a number of sign extension bits scaled from the samples in the block and whether the unique scaling factor exists.