Method and device for channel selection

A device for channel selection, comprising:

• at least one processor and a memory communicatively connected to the at least one processor,
• wherein the memory stores instructions, and the at least one processor executes the instructions to:
• indicate a time-domain resource position and a frequency-domain resource position of each of a plurality of extended physical uplink control channel regions based on a common physical downlink control channel, and
• instruct each user terminal in a group of user terminals to transmit an extended physical uplink control channel in one of the indicated plurality of extended physical uplink control channel regions, wherein different user terminals transmit extended physical uplink control channels in different ones of the indicated plurality of extended physical uplink control channel regions,
• wherein said indicating the frequency-domain resource position of each of a plurality of extended physical uplink control channel regions based on the common physical downlink control channel comprises:
• allocating a frequency-domain resource position for the extended physical uplink control channel according to radio resource control (RRC) signaling;
• or
• indicating the frequency-domain resource position of the extended physical uplink control channel region according to downlink control information (DCI) carried on the common physical downlink control channel,
• wherein, allocating the frequency-domain resource position for the extended physical uplink control channel according to the radio resource control RRC signaling comprises:
• indicating an interlace corresponding to the extended physical uplink control channel by a bitmap of 10-bit, or indicating any one interlace among 10 interlaces occupied by the extended physical uplink control channel by 4-bit, and
• wherein, indicating the frequency-domain resource position of the extended physical uplink control channel region according to the DCI carried on the common physical downlink control channel comprises:
• indicating an interlace corresponding to the extended physical uplink control channel by a bitmap of 10-bit, or indicating any one interlace among 10 interlaces occupied by the extended physical uplink control channel by 4-bit.