Method of performing random access according to a coverage enhancement level, and equipment therefor
AssigneeHuawei Technologies Co., Ltd.
InventorsWei Quan, Jian Zhang, Zhenxing Hu, Bingzhao Li, Xiaodong Yang
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Abstract
A method includes determining whether a first preset condition is met, where the first preset condition includes: a difference between a maximum transmit power allowed by the user equipment and a power of sending the random access code in a previous random access attempt process is less than or equal to a power ramping factor, and/or, the previous random access attempt process fails. The method also includes, if the first preset condition is met, sending the random access code using an enhancement mode in the current random access attempt process.
Claims15
A method, comprising:
- in response to a previous random access attempt process failing, selecting, from enhancement levels of an enhancement mode, a next enhancement level of an enhancement level used in the previous random access attempt process;
- when a pre-obtained random access channel resource corresponding to the next enhancement level is available at a current moment, and in response to the current moment occurring after a start moment of the pre-obtained random access channel resource corresponding to the next enhancement level, determining whether a preset policy is met;
- and
- when it is determined that the preset policy is met, sending, at the current moment, a random access code, wherein signal retransmission times corresponding to the next enhancement level are more than signal retransmission times corresponding to the enhancement level used in the previous random access attempt process.
A device, comprising:
- a non-transitory memory storing instructions;
- and
- a processor, coupled to the non-transitory memory, the processor being configured to execute the instructions to:
- in response to a previous random access attempt process failing, selecting, from enhancement levels of an enhancement mode, a next enhancement level of an enhancement level used in the previous random access attempt process;
- when a pre-obtained random access channel resource corresponding to the next enhancement level is available at a current moment, and in response to the current moment occurring after a start moment of the pre-obtained random access channel resource corresponding to the next enhancement level, determining whether a preset policy is met;
- and
- when it is determined that the preset policy is met, sending, at the current moment, a random access code, wherein signal retransmission times corresponding to the next enhancement level are more than signal retransmission times corresponding to the enhancement level used in the previous random access attempt process.
Dependencies are inferred from the claim text.