Orbital angular momentum-based communication method and apparatus and device

1 . An orbital angular momentum (OAM)-based communication method, comprising:

obtaining, by a terminal device, a first OAM mode indicated by a network device; and

transmitting, by the terminal device, a control channel according to the first OAM mode, after entering a connected state;

wherein the first OAM mode comprises at least one OAM mode of: an OAM mode with an eigenvalue of −1, an OAM mode with an eigenvalue of 0, or an OAM mode with an eigenvalue of 1;

wherein the method further comprises:

obtaining, by the terminal device, a preset second OAM mode, when performing an initial access with the network device; and

transmitting, by the terminal device, the control channel according to the second OAM mode during the initial access.

2 . The method according to claim 1 , wherein the first OAM mode comprises one or more OAM mode combinations, and each OAM mode combination comprises the at least one OAM mode.

3 . The method according to claim 1 , wherein in a case that the first OAM mode comprises a plurality of OAM mode combinations, the transmitting, by the terminal device, the control channel according to the first OAM mode comprises:

calling, by the terminal device, the plurality of OAM mode combinations in a polling manner to transmit the control channel.

4 . The method according to claim 1 , wherein the obtaining, by the terminal device, the first OAM mode indicated by the network device comprises:

receiving, by the terminal device, transmission mode indication information sent by the network device, wherein the transmission mode indication information is configured to indicate the first OAM mode; and

determining, by the terminal device, the first OAM mode according to the transmission mode indication information.

5 . The method according to claim 4 , wherein the transmission mode indication information comprises an arrangement manner of one or more OAM mode combinations and a number of OAM mode combinations.

6 . The method according to claim 1 , further comprising:

transmitting, by the terminal device, the control channel according to the second OAM mode after entering the connected state, if the first OAM mode indicated by the network device is not obtained by the terminal device.

7 . The method according to claim 1 , wherein the control channel comprises at least one of a physical uplink control channel or a physical downlink control channel.

8 . A non-transitory computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, cause the processor to perform the OAM-based communication method according to claim 1 .

9 . An orbital angular momentum (OAM)-based communication method, comprising:

determining, by a network device, a first OAM mode; and

indicating, by the network device, the first OAM mode to a terminal device, wherein the first OAM mode is used by the terminal device to transmit a control channel;

wherein the first OAM mode comprises at least one OAM mode of: an OAM mode with an eigenvalue of −1, an OAM mode with an eigenvalue of 0, or an OAM mode with an eigenvalue of 1;

wherein before the determining, by the network device, the first OAM mode, the method further comprises:

obtaining, by the network device, a preset second OAM mode when performing an initial access with the terminal device; and

transmitting, by the network device, the control channel according to the second OAM mode during the initial access.

10 . The method according to claim 9 , wherein the first OAM mode comprises one or more OAM mode combinations, and each OAM mode combination comprises the at least one OAM mode.

11 . The method according to claim 9 , wherein the indicating, by the network device, the first OAM mode to the terminal device comprises:

sending, by the network device, transmission mode indication information to the terminal device, wherein the transmission mode indication information is configured to indicate the first OAM mode.

12 . The method according to claim 11 , wherein the transmission mode indication information comprises an arrangement manner of one or more OAM mode combinations and a number of OAM mode combinations.

13 . The method according to claim 9 , wherein, after the determining, by the network device, the first OAM mode, the method further comprises:

transmitting, by the network device, the control channel according to the first OAM mode after determining that the terminal device is in a connected state.

14 . The method according to claim 13 , wherein the determining, by the network device, the first OAM mode comprises:

updating, by the network device, the first OAM mode after determining that the terminal device is in the connected state.

15 . The method according to claim 9 , wherein the control channel comprises at least one of a physical uplink control channel or a physical downlink control channel.

16 . A communication device, comprising:

a memory storing computer-executable instructions; and

a processor, connected to the memory and configured to perform the OAM-based communication method according to claim 9 .

17 . A non-transitory computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, cause the processor to perform the OAM-based communication method according to claim 9 .

18 . A communication device, comprising:

a memory storing computer-executable instructions; and

a processor, connected to the memory and configured to:

obtain a first OAM mode indicated by a network device; and

transmit a control channel according to the first OAM mode, after entering a connected state;

wherein the first OAM mode comprises at least one OAM mode of: an OAM mode with an eigenvalue of −1, an OAM mode with an eigenvalue of 0, or an OAM mode with an eigenvalue of 1;

wherein the processor is further configured to:

obtain a preset second OAM mode, when performing an initial access with the network device; and

transmit the control channel according to the second OAM mode during the initial access.