发明名称 |
Method and apparatus for performing handover using packet data convergence protocol (pdcp) reordering in mobile communication system |
摘要 |
Improving communication efficiency in handover re-establishing an ARQ entity in a mobile communication system is disclosed. The method includes transmitting first Packet Data Convergence Protocol (PDCP) Packet Data Units (PDUs) correctly received from the source cell, together with a special indication requiring reordering of the first PDCP PDUs, from a Radio Link Control (RLC) receiving buffer to a PDCP receiving entity when a handover command message from a source cell to a target cell is received; buffering the first PDCP PDUs in a PDCP PDU reordering buffer by the PDCP receiving entity in response to the special indication; and when a second PDCP PDU is received from the target cell through a new RLC receiving entity for the target cell, outputting third PDCP PDUs up to a PDCP PDU before a first missing PDCP PDU having a sequence number higher than that of the second PDCP PDU from the PDCP reordering buffer. In the method, a PDCP entity performs reordering, thereby improving efficiency of communication. |
申请公布号 |
EP2369795(A2) |
申请公布日期 |
2011.09.28 |
申请号 |
EP20110162073 |
申请日期 |
2007.10.19 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, SOENG-HUN;JEONG, KYEONG-IN;VAN LIESHOUT, GERT JAN;VAN DER VELDE, HIMKE |
分类号 |
H04L12/56;H04L29/06;H04W28/04;H04W28/06;H04W36/02 |
主分类号 |
H04L12/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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