Abstract: Implementations of the present specification provide a video retrieval method and apparatus. In the method, a video frame in a video to be matched is obtained; an image feature and a text feature are extracted from the video frame; the image feature and the text feature are fused based on a center variable used to represent a cluster center to obtain a fused feature, where the center variable is used to associate features of different modes of a same video; and video retrieval is performed in a video database based on the fused feature to determine a video in the video database that matches the video to be matched, where a plurality of videos and video features corresponding to the plurality of videos are stored in the video database.

Abstract: A method for achieving high-speed data transmission is disclosed. The method includes: repacking a data packet to be transmitted using a preset bit width and adding a check code; for a correct response message, releasing system resources immediately, and for an incorrect response message, implementing an automatic retransmission operation on the data packet, thereby reducing the complexity and power consumption level of a chip, and ensuring the data exchange speed and quality. Also provided is a universal interface chip for achieving high-speed data transmission.

Abstract: A method for achieving high-speed data transmission is disclosed. The method includes: repacking a data packet to be transmitted using a preset bit width and adding a check code; for a correct response message, releasing system resources immediately, and for an incorrect response message, implementing an automatic retransmission operation on the data packet, thereby reducing the complexity and power consumption level of a chip, and ensuring the data exchange speed and quality. Also provided is a universal interface chip for achieving high-speed data transmission.

Abstract: Method and apparatus for decoding is provided. A decoding channel IDentity (ID) of a Dedicated Physical Control Channel (DPCCH) and a decoding channel ID of an Enhanced DPCCH (E-DPCCH) of a user are acquired according to a user ID of the user; Transport Format Combination Indicator (TFCI) symbols in the DPCCH and Enhanced TFCI (E-TFCI) symbols in the E-DPCCH are de-mapped, and the de-mapped symbols are stored according to the decoding channel ID; and a symbol queue to be decoded is selected according to priorities of symbol queues of the DPCCH and the E-DPCCH, symbols corresponding to the selected symbol queue from the de-mapped symbols, and decoding the read symbols are read out.

Abstract: The present invention discloses a method and apparatus for generating a scrambling code, and the method includes: acquiring initial sequences X0, Y0; extending the initial sequences X0, Y0 for (?N/M?+1) times, and obtaining extended sequences X*, Y*, wherein, the N is a positive integer, 0<M?22, and “? ?” denotes rounded down; acquiring phase offset column vectors; and generating the scrambling code according to the extended sequences X*, Y* and the phase offset column vectors. The apparatus includes: a first acquiring module, an extension module, a second acquiring module and a generation module. The technical scheme of the present invention can process more users, reduce the processing delay and greatly improve the processing efficiency in the same system clock.

Abstract: The disclosure discloses a decoding method and apparatus. The decoding method includes: acquiring a decoding channel IDentity (ID) of a Dedicated Physical Control Channel (DPCCH) and a decoding channel ID of an Enhanced DPCCH (E-DPCCH) of a user according to a user ID of the user; de-mapping Transport Format Combination Indicator (TFCI) symbols in the DPCCH and Enhanced TFCI (E-TFCI) symbols in the E-DPCCH, and storing the de-mapped symbols according to the decoding channel ID; and selecting a symbol queue to be decoded according to priorities of symbol queues of the DPCCH and the E-DPCCH, reading out symbols corresponding to the selected symbol queue from the de-mapped symbols, and decoding the read symbols. The disclosure deals with the decoding of TFCI data in a DPCCH and the decoding of E-TFCI data in an E-DPCCH synchronously and reduces nearly half of the symbol storage space by configuring decoding channel IDs uniformly.

Abstract: The present invention discloses a method and apparatus for generating a scrambling code, and the method includes: acquiring initial sequences X0, Y0; extending the initial sequences X0, Y0 for (?N/M?+1) times, and obtaining extended sequences X*, Y*, wherein, the N is a positive integer, 0<M?22, and “? ?” denotes rounded down; acquiring phase offset column vectors; and generating the scrambling code according to the extended sequences X*, Y* and the phase offset column vectors. The apparatus includes: a first acquiring module, an extension module, a second acquiring module and a generation module. The technical scheme of the present invention can process more users, reduce the processing delay and greatly improve the processing efficiency in the same system clock.