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 |
US2014071948(A1) |
申请公布日期 |
2014.03.13 |
申请号 |
US201314084235 |
申请日期 |
2013.11.19 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM SOENG-HUN;JEONG KYEONG-IN;VAN LLESHOUT GERT JAN;VAN DER VELDE HIMKE |
分类号 |
H04W36/24;H04W28/04;H04W36/02 |
主分类号 |
H04W36/24 |
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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