Signal transmission method and system, and control information transmission method and device

A signal reception method, comprising:

• transmitting, by a second communication node, first indication information, and determining an acquisition mode for a receiving beam of an uplink signal according to the first indication information, wherein the first indication information indicates whether the sending beam of the uplink signal is acquired according to a receiving beam of a downlink control channel for a first communication node;
• receiving, by the second communication node using N receiving beams in the case that the first indication information indicates that the sending beam of the uplink signal is acquired according to the receiving beam of the downlink control channel for the first communication node, the uplink signal which is sent from the first communication node using N sending beams,
• wherein the N sending beams belong to M sending beams, each of the M sending beams corresponds to one receiving beam of a downlink control channel at the first communication node, wherein M is a natural number, and N is a natural number less than or equal to M;
• wherein the uplink signal comprises one of:
• a signal over an uplink control channel, a signal over an uplink data channel, or an uplink measurement reference signal;
• wherein the N sending beams from the M sending beams are determined according to a priority order corresponding to the M sending beams in a case where N is less than M, wherein the priority order of the M sending beams is agreed with the first communication node, and the priority order of the M sending beams is determined based on an indication transmitted by the second communication node.

A signal transmission apparatus, comprising:

• at least one processor;
• and
• a memory communicably connected with the at least one processor and configured for storing computer-executable instructions executable by the at least one processor, wherein the computer-executable instructions when executed by the at least one processor cause the at least one processor to perform a method signal transmission method, wherein the method comprises:
• receiving, by a first communication node, first indication information, and determining an acquisition mode for a sending beam of an uplink signal according to the first indication information, wherein the first indication information indicates whether the sending beam of the uplink signal is acquired according to a receiving beam of a downlink control channel;
• acquiring, by the first communication node, in the case that the first indication information indicates that the sending beam of the uplink signal is acquired according to the receiving beam of the downlink control channel, M sending beams, each of the M sending beams corresponds to one of M receiving beams of the downlink control channel;
• determining, by the first communication node, N sending beams for sending the uplink signal from the M sending beams;
• and
• sending, by the first communication node, the uplink signal to a second communication node by using the N sending beams;
• wherein one sending beam of the M sending beams comprises at least one sending beam, wherein M is a natural number, and N is a natural number less than or equal to M;
• wherein the uplink signal comprises one of:
• a signal over an uplink control channel, a signal over an uplink data channel, or an uplink measurement reference signal;
• wherein the N sending beams from the M sending beams are determined according to a priority order corresponding to the M sending beams in a case where N is less than M, wherein the priority order of the M sending beams is agreed with the second communication node, and the priority order of the M sending beams is determined based on an indication from the second communication node.