Transmitting and receiving method in cellular system

Abstract

The invention provides a transmitting and a receiving method in a cellular system. In a multicarriercellular system, a mobile station terminal itself uses a second syn code (Walsh code or GCL code) mapping to a second synchronizing channel, as a signal to determine which base station the subzone is from. The signal sent from the base station to the mobile station terminal is mapped to a wireless frame with a planar breadth of a frequency orientation and a time orientation. Along many parts, the wireless frame is embedded in the synchronizing channel mapped with the first synchronizing channel and the second synchronizing channel. Therefore, the second syn code of some serial number of the determined subzone or the subzone group is used as the second synchronizing channel to be mapped to the wireless frame, according to the ranking of the synchronizing channel to be mapped in the wireless frame, the second syn number is applied a phase rotation or a cycle shift using a wireless frame as a period and is mapped[a phase rotation or a cycle shift with one wireless frame as a period is performed upon the second syn code and mapping is performed. On the receiving side, then phase rotation angle or the cycle shift amount of the second syn code is acquired, so as to acquire the timing of the wireless frame front head.

Description

[0001] This application is a branch of the invention patent application with the original application number No. 200680056791.3 (International application number: PCT / JP2006 / 326223, filing date: December 28, 2006, invention name: sending device and receiving device in a cellular system) case application. technical field [0002] The invention relates to a transmitting device and a receiving device in a cellular system. Background technique [0003] In a cellular system, a cell search process is generally performed in which a mobile station terminal searches for a cell to which a radio link is connected. The cell search is performed using a synchronization channel (Synchronization Channel, SCH) included in a downlink radio frame. Also, in addition to the synchronization channel, a cell-specific pilot channel and a broadcast channel (BCH) may also be used (Reference: Non-Patent Document 1). [0004] refer to Figure 1A , B and figure 2 The first prior art described in Non-...

AI Technical Summary

Problems solved by technology

[0026] In the prior art described above, the serial numbers of the code sequences multiplexed in each SCH in the radio frame are different, so when detecting the SCH on the receiving side, it is necessary to perform IDFT on codes using all the serial numbers for each received SCH, etc. Related processing, there is a problem of relatively large processing volume

Images