Huawei Technologies Co., Limited

Tencent Technology (shenzhen) Company Limited

Kun Guan

Shaohui Quan

Gongyi Wang

Jianqiang Shen

Denis Vladimirovich Parkhomenko

Dmitry Nicolaevich Babin

Xiaomin Xu

Wen Yang

Stanislav Vladimirovich Moiseev

Liyu Wang

Denis Vasilievich Parfenov

Bang Liu

Aleksei Valentinovich Romanovskii

Jinan Leng

Liangxiang Zhang

Aleksei Romanovskii

Dmitry Nikolaevich Babin

A data storage method in a storage system and a related system. The method includes: calculating a similar fingerprint of first to-be-stored data to obtain a first similar fingerprint, where the first similar fingerprint is for determining whether the first to-be-stored data is similar to stored data; determining reference data based on the first similar fingerprint, where a similar fingerprint of the reference data is the first similar fingerprint; determining first differential data between the to-be-stored data and the reference data based on the reference data, where the reference data is stored in a first storage unit; and storing the first differential data in a second storage unit, where the first storage unit and the second storage unit belong to a read range of a same read I/O.

Data storage method in storage system and related device

A method of similarity-based deduplication comprising the steps of: receiving an input data block; computing discrete wavelet transform (DWT) coefficients; extracting feature-related DWT data from the computed DWT coefficients; applying quantization to the extracted feature-related DWT data to obtain keys as results of the quantization; constructing a locality-sensitive fingerprint of the input data block; computing a similarity degree between the locality-sensitive fingerprint of the input data block and a locality-sensitive fingerprint of each data block in the plurality of the data blocks in a cache memory; selecting an optimal reference data block as the data block; determining a differential compression is required to be applied based on the similarity degree between the input data block and the optimal reference data block; applying the differential compression to the input data block and the optimal reference data block.

Method and system of similarity-based deduplication

A data compression method includes obtaining N to-be-compressed data blocks and N pieces of protection information (PI), where the N to-be-compressed data blocks are in a one-to-one correspondence with the N pieces of PI, and N is a positive integer greater than or equal to 2, compressing the N to-be-compressed data blocks to obtain a compressed data block, and compressing the N pieces of PI to obtain compressed PI.

Data compression method, data decompression method, and related apparatus

An encoding method and apparatus is described. In an encoding method, when a first target sub-block in a target block is obtained, a hash operation is first performed on the first target sub-block. Then, a first hash table is queried for a corresponding hash value according to an operation result, and a corresponding location in a reference block is found according to the hash value obtained by means of query, that is, first reference data is found. The first piece of target data in the first target sub-block is matched with the first reference data, and second target data in the target block is matched with second reference data in the reference block. In this way, an approximate location is predetermined, so that a range in which matching needs to be performed is narrowed, a data compression time is reduced, and data compression efficiency is improved.

Encoding method and apparatus

Methods, apparatus and communication systems for allocating and managing voice channels are provided. After receiving first voice data, a voice server can search for a voice channel corresponding to a first user of the first voice data. When successfully finding the first voice channel corresponding to the first user, the voice server can write the first voice data to the first voice channel. When successfully allocating a second voice channel that is currently already-timed-out to the first user, the voice server can write the first voice data to the second voice channel, and mark the second voice channel as assigned to the first user. Utilizing efficiency of the voice channels is therefore improved and deploying of hardware resources can be reduced.

Method, apparatus, and communication system for allocating and managing voice channels

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Hangzhou, China

Kun Guan