Facilitating Synchronization Between a Base Station and a User Equipment

摘要

Methods and apparatus are provided for facilitating synchronization between a base station (BS) and a user equipment (UE) in a mobile communication system. The UE receives a synchronization signal originated by the BS. The synchronization signal is encoded with a selected cyclically permutable (CP) codeword. Encoding of the synchronization signal is facilitated by a repetitive cyclically permutable (RCP) codeword derivable from the selected CP codeword. The RCP codeword has a plurality of codeword elements each associated with a value, the value of at least one codeword element in the RCP codeword being repeated in another codeword element position in the RCP codeword. And the synchronization signal is decoded in accordance with repetitive structure of the RCP codeword.

主权项

1. A method of facilitating synchronization between a base station (BS) and a user equipment (UE) in a mobile communication system, the method comprising:
defining a set of cyclically permutable (CP) codewords; selecting, by the BS, a CP codeword from the set in accordance with a Cell ID; and encoding, by the BS, the selected CP codeword into a synchronization signal to be sent to the UE, the encoding being facilitated by deriving a repetitive cyclically permutable (RCP) codeword from the selected CP codeword and encoding the RCP codeword into the synchronization signal, wherein the RCP codeword has a plurality of codeword elements, wherein each codeword element of the plurality of codeword elements is associated with a value, wherein the value of at least one codeword element in the RCP codeword is repeated in another codeword element position in the RCP codeword, wherein the synchronization signal comprises a plurality of synchronization sequences transmitted in a radio frame, and wherein allocation of the plurality of synchronization sequences to a plurality of slots of the radio frame is performed in accordance with the RCP codeword.