Patent ID: 9055555
Filing Date: 2015-06-09
Classification: H04L,H04W

Abstract:
1. A cellular network infrastructure equipment comprising: a transceiver; and processing logic operably coupled to the transceiver and arranged to transmit a request message to one or more wireless subscriber communication unit(s), wherein the request message comprises a multi-cast service identifier for a multi-cast service as well as an indication of a dedicated signature sequence to be used for a random access channel (RACH) preamble by the one or more wireless subscriber communication unit(s) for responding to the request message; wherein: the transceiver is arranged to receive and process a response signal from a particular communication cell using a physical non-synchronized random access channel (RACH) in response to the request message, wherein said response signal is a RACH preamble comprising the dedicated signature sequence for the multi-cast service, and in response thereto performs at least one of the following: