Patent ID: 9007887
Filing Date: 2015-04-14
Classification: H04J,H04L,H04W

Abstract:
1. A communication method, comprising: determining a length N of a random access sequence on the basis of system configuration information, wherein N≦N determining a collection of cyclic shift parameters {δ acquiring a media access control layer MAC address or physical layer identifier ID of a central access point CAP, generating a PN sequence of a length N on the basis of the MAC address or physical layer identifier ID of the CAP and a predetermined generator polynomial, and constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting the constellation-mapped and subcarrier-mapped PN sequence on the basis of the cyclic shift parameters {δ adding the cyclic prefix CP to the acquired sequence to acquire a random access signal in the time domain; and performing subsequent processing on the random access signal, and then transmitting the processed random access signal to a receiving end.