发明名称 |
METHOD AND DEVICE FOR GROUP COMMUNICATION, HAVING ROBUST MOBILITY |
摘要 |
The present invention relates to a method and apparatus for group communication. In more detail, the present invention relates to a method and apparatus for allowing a terminal to participate in group communication effectively on the move, and a communication method of a base station in a mobile communication system according to the present invention includes receiving Multimedia Broadcast Multicast Service (MBMS) bearer information including a QoS parameter from a Multi-cell/multicast Coordination Entity (MCE); updating bearer information for a terminal using the received MBMS bearer information; making a handover decision of the terminal and transmitting a handover request message including the MBMS bearer information to a Mobility Management Entity (MME) or a second base station which does not support MBMS; transmitting a handover command message from the second base station to the terminal; and forwarding MBMS data to the second base station during a predetermined period. The group communication service reception method and apparatus of the present invention is advantageous in that a terminal participated in group communication is capable of receiving the group communication service seamlessly, even when the terminal enters an area not supporting MBMS, by switching the communication path to a Point-To-Point (PTP) communication path quickly. |
申请公布号 |
US2015365963(A1) |
申请公布日期 |
2015.12.17 |
申请号 |
US201414762659 |
申请日期 |
2014.10.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
WON Sung Hwan;CHO Songyean;GUTTMAN Erik |
分类号 |
H04W72/10;H04L12/18;H04W72/08;H04W28/02;H04W76/04 |
主分类号 |
H04W72/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Suwon-si KR |