US Patent No. 10,397,960


Patent No. 10,397,960
Issue Date August 27, 2019
Title Initial Access Channel For Scalable Wireless Mobile Communication Networks
Inventorship Jianglei Ma, Kanata (CA)
Hua Xu, Nepean (CA)
Ming Jia, Ottawa (CA)
Sarah Boumendil, Boulogne Billancourt (FR)
Evelyne Le Strat, Paris (FR)
Hang Zhang, Nepean (CA)
Peiying Zhu, Kanata (CA)
Wen Tong, Ottawa (CA)
Assignee Apple Inc., Cupertino, CA (US)

Claim of US Patent No. 10,397,960

1. A transmitter configured to serve a cell, the transmitter comprising:one or more processing elements; and
one or more memories having program instructions stored thereon that are executable by the one or more processing elements to cause the transmitter to:
transmit, via an orthogonal frequency division multiplexing (OFDM) wireless communication system having a system bandwidth, at least a synchronization channel, wherein the synchronization channel comprises a primary synchronization channel and a secondary synchronization channel, wherein the primary synchronization channel is modulated by at least one primary synchronization sequence, and wherein the at least one primary synchronization sequence is a sequence selected from a set of two or more possible primary synchronization sequences common to multiple cells of a wireless communications system;
wherein the secondary synchronization channel is transmitted three OFDM symbols prior to each transmission of the primary synchronization channel.