Patent ID: 9078257
Filing Date: 2015-07-07
Classification: H04W

Abstract:
1. A method for initiating a random access procedure by a wireless device after extended access barring (EAB), comprising: receiving updated EAB information at the wireless device from the node; determining that a bar on the wireless device is released in the updated EAB information, wherein the bar prevents the wireless device from accessing a node using EAB; counting a random backoff time at the wireless device using a random backoff timer, wherein the random backoff time is a random time between zero and a maximum backoff time period; informing upper layers of the wireless device that access is barred using EAB for the random backoff time; and transmitting a random access channel (RACH) message from the wireless device to the node to initiate a random access procedure after the expiry of the random backoff timer.