| 摘要 |
The present invention provides a method for determining the number of random access channels which is applied to a time division duplex system. The method comprises: a terminal determining configuration parameters related to the number of the random access channels in an UpPTS based on system configuration, said configuration parameters including the number of downlink-to-uplink switch-points in one radio frame N SP , the density of PRACHs in a random access configuration D RA , a system frame number of a system frame in which said UpPTS is located n f , and a version index corresponding to a PRACH configuration index r RA ; and said terminal then calculating directly the number of the PRACHs in said UpPTS based on the configuration parameters. The present invention also provides a method for sending a SRS of a time division duplex system using the method for determining the number of the random access channels. The method may calculate the number of the PRACHs in the UpPTS conveniently, thereby reducing system memory overhead. |
