| 摘要 |
The present invention discloses a method for sending a preamble sequence and user equipment. The method includes: determining a transmit power for sending a preamble sequence, where the transmit power meets the following formula: Power = min { P max , PREAMBLE_RECEIVED_TARGET_POWER i preamble_transmission_counter + PL } , where Power is the determined transmit power, Pmax is a maximum transmit power of user equipment, PL is obtained by estimating according to a downlink path loss, and PREAMBLE_RECEIVED_TARGET_POWER i preamble_transmission_counter is a target receive power of the preamble sequence, where PREAMBLE_RECEIVED_TARGET_POWER i preamble_transmission_counter = preambleInitial Re ceivedT arg etPower + DELTA_PREAMBLE - X i +( preamble_transmission_counter -1)* powerRampingStep ; and preambleInitial Re ceivedT arg etPower is an initial target receive power of the preamble sequence, DELTA_PREAMBLE is a power offset based on a format of the preamble sequence, powerRampringStep is a power ramp step, preamble_transmission_counter is a repetition count for transmitting the preamble sequence, and X i is a power offset corresponding to a preamble sequence resource pool i for coverage enhancement random access; and sending the preamble sequence according to the determined transmit power. |
