Search International and National Patent Collections

1. (WO2017204994) METHOD AND APPARATUSES FOR ACCESSING UNLICENSED AND LICENSED FREQUENCY BANDS

Pub. No.:    WO/2017/204994    International Application No.:    PCT/US2017/030027
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: H04W 72/12
H04W 72/04
Applicants: QUALCOMM INCORPORATED
Inventors: LI, Chong
HAMPEL, Karl Georg
LI, Junyi
Title: METHOD AND APPARATUSES FOR ACCESSING UNLICENSED AND LICENSED FREQUENCY BANDS
Abstract:
Various types of communication may switch from an unlicensed spectrum to a licensed spectrum. MiCr communication may be synchronized based on transmission time intervals (TTIs), which may improve the duration required to switch between bands. A MiCr system may transmit a signal to temporarily suspend other traffic in a licensed band so that MiCr communication may occur. For example, an apparatus may be configured to determine synchronization between a first radio access technology (RAT) and a second RAT based on transmission time intervals associated with the first RAT and transmission time intervals associated with the second RAT, switch from the first RAT to the second RAT after the determined synchronization between the first RAT the second RAT; and transmit, during a TTI associated with the second RAT, a first packet using the second RAT based on the switch from the first RAT to the second RAT.