Apparatus and methods for group wireless transmit/receive unit (WTRU) handover

摘要

Apparatus and methods of handing over a wireless transmit/receive unit (WTRU) that belongs to a group of WTRUs from an originating base station to a target base station are described. A method includes the WTRU obtaining information regarding a group to which the WTRU has been assigned and the WTRU receiving at least one of handover reconfiguration information that is common to the group and handover reconfiguration information that is specific to the WTRU. On a condition that the WTRU receives the handover reconfiguration information that is specific to the WTRU, the WTRU initiates a synchronization procedure with the target base station based at least on the received handover reconfiguration information.

主权项

1. A method of handing over a wireless transmit/receive unit (WTRU) from an originating base station to a target base station, the method comprising:
the WTRU obtaining information regarding a group to which the WTRU has been assigned; the WTRU receiving at least one of handover reconfiguration information that is common to the group and handover reconfiguration information that is specific to the WTRU; on a condition that the WTRU receives the handover reconfiguration information that is specific to the WTRU, the WTRU initiating a synchronization procedure with the target base station based at least on the received handover reconfiguration information; the WTRU receiving a notification of temporary physical random access channel (PRACH) resources available to the group for a random access channel (RACH) process, wherein the temporary PRACH resources include at least one of an increased number of PRACH resources per subframe, an increased number of subframes with PRACH resources or an increased number of PRACH resources within an existing long term evolution (LTE) framework; and the WTRU making a communication using at least one of the temporary PRACH resources.