Patent ID: 9516659
Filing Date: 2016-12-06
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method to define a downlink signal in a first carrier type, comprising: generating a first binary sequence for a first subframe of the downlink signal and a second binary sequence for a second subframe of the downlink signal, the first and second binary sequences being part of a Secondary Synchronization Signal (SSS) for the downlink signal, the downlink signal comprising a 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) downlink signal so that a legacy device can avoid to attempt to connect to a new carrier type (NCT) downlink signal that is unavailable to the legacy device, and thereby conserve battery power; processing the first binary sequence with a first scrambling sequence; and processing the second binary sequence with a second scrambling sequence; the first and second scrambling sequences being distinguishable from a second carrier type, wherein the first and second scrambling sequences each comprise a cyclic-shifted version of an m-sequence.