US 2017/0303204 A1 · Preamble Sequence Sending Method and Apparatus

Abstract

A preamble sequence sending method and apparatus are provided. The method includes sending, by user equipment (UE), a first preamble sequence according to a first transmit power and using a repetition factor N1; if the UE fails to receive, in a preset time period after the first preamble sequence is sent, a response message that is sent by a network-side device and that is corresponding to the first preamble sequence, switching, by the UE, to a next repetition factor N2, where a quantity of consecutive sending times indicated by the next repetition factor N2 is greater than a quantity of consecutive sending times indicated by the repetition factor N1; and sending, by the UE, a second preamble sequence according to a second transmit power and using the next repetition factor N2.

Claims20

Dependent claims

A preamble sequence sending method, comprising:

sending, by user equipment (UE), a first preamble sequence according to a first transmit power and using a repetition factor N1;
switching, by the UE, to a next repetition factor N2 when the UE fails to receive, in a preset time period after the first preamble sequence is sent, a response message sent by a network-side device and corresponding to the first preamble sequence, wherein a quantity of consecutive sending times indicated by the next repetition factor N2 is greater than a quantity of consecutive sending times indicated by the repetition factor N1;
and
sending, by the UE, a second preamble sequence according to a second transmit power and using the next repetition factor N2.

1 more element

A preamble sequence sending apparatus, comprising:

a memory configured to software instructions;
and
a processor coupled to the memory and configured to execute the software instructions to perform:
sending a first preamble sequence according to a first transmit power and using a repetition factor N1;
switching to a next repetition factor N2 when no response message sent by a network-side device and corresponding to the first preamble sequence is received in a preset time period after the first preamble sequence is sent, wherein a quantity of consecutive sending times indicated by the next repetition factor N2 is greater than a quantity of consecutive sending times indicated by the repetition factor N1;
and
sending a second preamble sequence according to a second transmit power and using the next repetition factor N2.

4 more elements

Dependencies are inferred from the claim text.

Preamble Sequence Sending Method and Apparatus

Life of this patent

Preamble Sequence Sending Method and Apparatus

Life of this patent

Abstract

Claims20