Radio access method, apparatus, system, and computer storage medium

1. A radio access method, comprising:

transmitting, by a terminal, an access signal by a first method when a preset condition is satisfied; and

transmitting, by the terminal, the access signal by a second method when the preset condition is not satisfied;

wherein the first method comprises:

receiving indication signaling transmitted by a base station, wherein the indication signaling comprises access manner notification signaling or a reference signal;

determining a transmission mode of an access signal according to the indication signaling; and

transmitting the access signal in the transmission mode,

wherein the transmission mode comprises a transmit beam and/or a transmit beam direction,

wherein the determining a transmission mode of an access signal according to the indication signaling comprises:

determining the transmission mode according to the access manner notification signaling,

or

determining the transmission mode according to a reference signal detection, and

wherein determining the transmission mode of the access signal comprises:

determining a baseband precoding matrix and determining a baseband signal of the access signal according to the baseband precoding matrix; or

determining a radio frequency precoding matrix and determining a radio frequency signal of the access signal according to the radio frequency precoding matrix; and wherein the second method comprises:

selecting, by a terminal, N1 access channel resources from access channel resources and transmitting an access signal in N2 transmission modes; wherein N1 is a positive integer and N2 is a positive integer less than or equal to N1;

wherein the access signal is transmitted in the N2 transmission modes each time within a preset number of transmissions; after the preset number of transmissions, the access signal is transmitted in N3 transmission modes; wherein N3 is a positive integer, and the N3 transmission modes are different from the N2 transmission modes; and

wherein the transmission mode comprises a transmit beam and/or a transmit beam direction; wherein the preset condition is that an uplink channel and a downlink channel have reciprocity; and

wherein the reciprocity comprises:

the uplink channel and the downlink channel adopt a time division duplex, TDD, mode;

the reciprocity exists between a channel for the base station to transmit a signal and a channel for the base station to receive a signal, and the reciprocity exists between a channel for the terminal to transmit a signal and a channel for the terminal to receive a signal; and

an antenna port used by the base station to transmit the signal is the same as an antenna port used by the base station to receive the signal, and an antenna port used by the terminal to transmit the signal is the same as an antenna port used by the terminal to receive the signal.

2. The method of claim 1 , wherein when the terminal transmits the access signal using the first method, the terminal occupies a first access channel resource to transmit the access signal to a base station; and

when the terminal transmits the access signal using the second method, the terminal occupies a second access channel resource to transmit the access signal to the base station.

3. A non-transitory computer-readable storage medium, configured to store a set of instructions, wherein the set of instructions, when executed by at least one processor, implement the radio access method of claim 1 .