METHOD FOR ELIMINATING MUTING DURING EVOLVED MULTICAST BROADCAST SERVICE (eMBS) SERVICE CHANGE

摘要

A method and apparatus for preventing muting of ongoing services when a new multicast traffic channel, MTCH, is to be started or stopped are disclosed. In one embodiment, the method includes sending a multicast control channel, MCCH, update at a start of an MCCH modification period indicating that the new MTCH is to be started during a following MCCH modification period. The method further includes sending a calculated multicast control channel service start offset, MCCH-offset, indicating when the new MTCH is to be started after an MCCH boundary.

主权项

1. A method of preventing muting of ongoing services of a multimedia broadcast and multicast service, MBMS, in a wireless communication network having a base station during multicast scheduling periods, MSPs, when a multicast traffic channel, MTCH, is to be started and stopped, the method comprising:
determining an absolute MBMS data start time equal to a floor function of a desired data transfer start time and a predetermined number of radio frames; sending the determined absolute MBMS data start time to a multicast control entity, MCE, of the cellular network; determining an absolute MBMS data stop time equal to a ceiling function of an actual data transfer stop time and the predetermined number of radio frames, the actual data transfer stop time being based on starting the data transfer at the determined absolute MBMS data start time; and sending the determined absolute MBMS data stop time to the MCE.