Patent ID: 9210676
Filing Date: 2015-12-08
Classification: H04J,H04L,H04W

Abstract:
1. A method comprising: a) establishing a first signaling bearer between a wireless device and a base station on a primary cell, said establishing comprising said wireless device receiving a first control message from said base station on said primary cell in a plurality of cells, said plurality of cells comprising said primary cell and at least one secondary cell; and b) transmitting, by said wireless device, a plurality of radio capability parameters to said base station on said first signaling bearer on said primary cell, said plurality of radio capability parameters comprising at least one timing advance group capability parameter indicating whether said wireless device supports a plurality of timing advance groups in one or more band combinations; and wherein, if said at least one timing advance group capability parameter indicates said wireless device supports said plurality of timing advance groups, said wireless device performs all of the following functions: