Patent ID: 9622110
Date: 2017-04-11
CPC Classifications: H04W

Claim:
1. A method for ranging, by a machine-to-machine (M2M) device, in a wireless communication system, the method comprising: receiving an opportunity index included in a random access identifier (RA-ID), wherein the opportunity index is masked with a CDMA allocation A-MAP information element (IE); receiving an Advanced Air Interface-System Configuration Descriptor (AAI-SCD) message including information on a dedicated ranging channel for the M2M device and a M2M parameter change count from a base station; and transmitting a ranging request message to the base station through the dedicated ranging channel, wherein the M2M parameter change count indicates that the information on the dedicated ranging channel in the AAI-SCD message has changed, and wherein the information on the dedicated ranging channel for the M2M device relates to a M2M ranging indicator indicating dedicated ranging for the M2M device.