Methods, devices, and computer readable medium for communication

A method for communication, comprising:

• transmitting, at a second network device and to a first network device, a plurality of SSB signals in a plurality of periods, the plurality of synchronization signal/physical broadcast channel block, SSB, signals to be transmitted by the second network device via a plurality of first beams towards respective directions, a first beam for transmitting the plurality of SSB signals being changed per period;
• receiving, from the first network device, a random access signal transmitted by a terminal device on random access resources, wherein random access resources corresponding to the plurality of SSB signals are associated with the plurality of periods;
• determining at least one target beam from the plurality of first beams based on the association of the random access resources and the plurality of periods;
• and
• transmitting, to the first network device, beam information indicative of the at least one target beam for communication between the first network device and the terminal device.

A method for communication, comprising:

• receiving, at a terminal device and from a first network device, a plurality of SSB signals in a plurality of periods, the plurality of synchronization signal/physical broadcast channel block, SSB, signals being originally transmitted by a second network device and then transmitted by the first network device via a plurality of first beams towards respective directions, a first beam for transmitting the plurality of SSB signals being changed per period;
• determining one of the random access resources for a random access signal based on a measurement result of the plurality of SSB signals and the association of the random access resources and the plurality of periods;
• and
• transmitting the random access signal to the first network device on the random access resource, the random access signal to be transmitted by first network device to second network device.

A method for communication, comprising:

• receiving, at a first network device, a plurality of synchronization signal/physical broadcast channel block, SSB, signals transmitted via a first beam of a second network device, the plurality of SSB signals being associated with a plurality of second beams of the second network device, random access resources associated with the plurality of SSB signals corresponding to the first beam, and preambles associated with the plurality of SSB signals being different from a preamble corresponding to the first beam;
• storing the plurality of SSB signals at the first network device;
• transmitting the plurality of SSB signals via a plurality of beams of the first network device in a beam sweeping manner;
• receiving, from a terminal device, a random access signal with a preamble associated with one of the plurality of SSB signals on the random access resources;
• and
• transmitting the random access signal to the second network device for determining at least one target beam from the plurality of beams.

A method for communication, comprising:

• transmitting, at a second network device and to a first network device, a plurality of synchronization signal/physical broadcast channel block, SSB, signals via a first beam of a second network device, the group of SSB signals being associated with a plurality of second beams of the second network device, random access resources associated with the plurality of SSB signals corresponding to the first beam, and preambles associated with the plurality of SSB signals being different from a preamble corresponding to the first beam;
• receiving, from the first network device, a random access signal with a preamble associated with one of the plurality of SSB signals on the random access resources;
• determining at least one target beam from a plurality of beams of the first network device based on the preamble;
• and
• transmitting, to the first network device, beam information indicative of the at least one target beam for communication between the first network device and the terminal device.