Patent ID: 9232404
Filing Date: 2016-01-05
CPC Classification: H04L,H04W

Claim Text:
1. A method for data transmission, comprising: determining by a relay node, that data to be transmitted is control plane signaling related to a user equipment that camps on the relay node, wherein the control plane signaling related to the user equipment that camps on the relay node includes S1 interface signaling; setting, by the relay node, based on an obtained control indication of a first user data bearer established between the relay node and a donor base station, an attribute of a Packet Data Convergence Protocol (PDCP) peer layer of a dedicated Data Radio Bearer (DRB) in a relay link to activate integrity protection; and transmitting, by the relay node, based on the set attribute of the PDCP peer layer, the data to be transmitted through the first user data bearer to the donor base station, wherein the data to be transmitted through the first user data bearer is integrity-protected, and a user plane protocol is applied to the first data bearer.