Method of group based MTC messaging through cell broadcast and apparatuses using the same

摘要

The present disclosure proposes a method and apparatuses of implementing MTC group trigger messages through a Cell Broadcasting Service (CBS). The method includes a MTC (Machine Type Communication) server transmitting to a MTC Inter-working Function (MTC-IWF) a trigger payload. The trigger payload would be delivered by the MTC-IWF to a group of MTC devices through Cell Broadcasting Center (CBC) and network nodes. The trigger payload may include a group trigger message indicator which distinguishes the group trigger message from a normal warning message. In response to receiving the content of the trigger payload, the network would page a group of MTC devices. From the group trigger message indicator embedded in the paging message, each MTC device would be able to receive a group trigger message through new system information block of the broadcast information.

主权项

1. A method of receiving a group trigger message sent to a group of Machine Type Communication (MTC) devices based on a Cell Broadcast Service (CBS) messaging system comprising:
receiving a paging message comprising an indicator indicating a resource for a group trigger message to be received; receiving a broadcast message in response to receiving the paging message; determining the resource from the broadcast message in which the group trigger message is obtained based on the indicator; obtaining the group trigger message from the resource of the broadcast message; and determining the resource from the broadcast message which is a system information block (SIB) in response to receiving the indicator, wherein the SIB is a SIB other than SIB x, and x is an integer only from 1 to 13, wherein the SIB comprises an access barring parameter which randomizes a response time for each terminal target to respond according to a randomized delay.