Patent ID: 9379862
Filing Date: 2016-06-28
CPC Classification: H04L,H04W

Claim Text:
1. A method of obtaining multipoint transmission to a user equipment via a first and a second cell of a wireless communication network, where the first cell provides a first radio link to the user equipment at a first frequency, the method being performed by a radio network controller and comprising: ordering the second cell to set up a second radio link to the user equipment at the first frequency in order to obtain multipoint transmission to the user equipment, and notifying the first cell that it is a primary radio link participating in said multipoint transmission indicating a portion of the feedback channel used for decoding data by the first cell, wherein the notifying of participation in multipoint transmission is performed using control plane signalling comprising a modified existing radio resource control message concerning reconfiguration of the first radio link or the second radio link, said control plane signalling being separate from user data transmitted on the first radio link or the second radio link.