International Business Machines Corporation

Mingqiang Li

Chao Xue

Rong Yan

Yonghua Lin

Chao Zhu

Hai Zhan

Qing Fa Wang

Xinhao Cheng

Jun Song Wang

Huan He

A home base station system and method for managing data caching. The home base station system includes: a plurality of home base stations used to provide wireless communication to at least one mobile terminal, wherein the plurality of home base stations are connected to a wide area network via a local area network, and wherein the plurality of home base stations are interconnected via a local area network; and a server, wherein the server is connected to the plurality of home base stations via the local area network, and wherein the server is used to manage caching of data in a home base station system.

Home base station system and data access processing method thereof

A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.

Radio unit, baseband processing unit and base station system

The present invention relates to a wireless network, and more specifically, to a method and apparatus for partitioning a coordination area in a wireless network, the method comprising: obtaining antenna directions of respective cells, base station locations of respective cells, and scope of a coordination area within the wireless network; determining an initial coordination area based on the scope of the coordination area and the base station locations in respective cells; partitioning the initial coordination area into an inner area and an outer area; partitioning the outer area into an inward area and an outward area based on the antenna directions of cells within the outer area and the base station locations of cells within the outer area; and combining the inner area and the inward area within the outer area into a new coordination area. The method is simple and easy. It may solve a problem of coordination area edge caused by partitioning a coordination area and meanwhile avoid the association between coordination areas, thereby reducing the complexity of scheduling.

Partitioning a coordination area in a wireless network

The present invention provides a method and apparatus of managing a storage array. The method comprises: striping the storage array to form a plurality of stripes; selecting F storage chunks from each stripe as local parity chunks, and selecting another L storage chunks from the storage array as global parity chunks; performing (F+L) fault tolerant erasure coding on all data chunks in a stripe to generate (F+L) groups of parity data, and storing F groups of parity data therein into the F local parity chunks; performing cross-stripe operation on another L groups of parity data to generate L groups of global parity data, and storing them into the L global parity chunks, respectively. The apparatus corresponds to the method. With the invention, a plurality of errors in the storage array can be detected and/or recovered to improve fault tolerance and space utilization of the storage array.

Enabling efficient recovery from multiple failures together with one latent error in a storage array

A method, system and base station for implementing interference coordination. The method includes the steps of obtaining an interference coordination object; receiving interference coordination information from an object base station, parsing the interference coordination information based on the interference coordination object, and performing interference coordination by utilizing the parsed interference coordination information. The method and base station for implementing interference coordination according to the present invention can significantly improve the spectral resource utilization and the cell edge user's performance.

Interference coordination in wireless network cloud environment

The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.

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Beijing, China

Mingqiang Li