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METHOD AND APPARATUS FOR ACCESSING A RANDOM ACCESS CHANNEL BY SELECTIVELY USING DEDICATED OR CONTENTION-BASED PREAMBLES
METHOD AND APPARATUS FOR ACCESSING A RANDOM ACCESS CHANNEL BY SELECTIVELY USING DEDICATED OR CONTENTION-BASED PREAMBLES
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机译:通过选择性地使用基于专用或基于竞争的前导码来访问随机接入信道的方法和装置
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摘要
A method and apparatus for accessing a random access channel (RACH) during handover are disclosed. A handover procedure is initiated and a maximum handover interruption timer is activated. A dedicated preamble is transmitted in an attempt to access the RACH on a condition that the dedicated preamble is reserved in a current random access opportunity and the maximum handover interruption timer has not expired. A contention-based preamble is transmitted in an attempt to access the RACH on a condition that a dedicated preamble is not reserved in a current random access opportunity. If the maximum handover interruption timer has expired, a contention-based preamble is transmitted in an attempt to access the RACH.
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