CN-122002304-A - Signal transmission method and device

Abstract

The embodiment of the application provides a signal transmission method and a signal transmission device, which can improve the perception performance. The method comprises the steps of sending first sensing signals on P first time units in a first carrier wave, and sending second sensing signals on Q second time units in a second carrier wave, wherein the P first time units and the Q second time units comprise M time units with the same time domain positions, P is larger than M, and M is an integer larger than or equal to 1.

Inventors

• LU JIANZHONG
• GONG MINGXIN
• XIE XINQIAN

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241105

Claims (20)

1. 1.A method of signal transmission, comprising: Transmitting first sensing signals on P first time units in a first carrier; And transmitting a second sensing signal on Q second time units in a second carrier, wherein the P first time units and the Q second time units comprise M time units with the same time domain positions, P is larger than M, and M is an integer larger than or equal to 1.
2. 2. The method of claim 1, wherein P is equal to Q.
3. 3. The method according to claim 1 or 2, wherein the interval of the P first time units is smaller than the interval of the M time units.
4. 4. A method according to any of claims 1-3, characterized in that the interval of the Q second time units is smaller than the interval of the M time units.
5. 5. The method according to any one of claims 1-4, further comprising: Receiving capability report information from a receiving device, wherein the capability report information is used for indicating that the maximum capability of the receiving device for keeping phase continuity on the first carrier wave and the second carrier wave is continuous N time units, and the continuous N time units comprise M time units; The transmitting the first sensing signal on P first time units in the first carrier includes: Transmitting the first perceived signal on the P first time units in the first carrier based on the capability reporting information; the transmitting the second sensing signal over Q second time units in the second carrier includes: and transmitting the second sensing signal on the Q second time units in the second carrier based on the capability reporting information.
6. 6. A method of signal transmission, comprising: Receiving echo signals of a first perceived signal at P first time units in a first carrier; And receiving echo signals of the second sensing signals on Q second time units in the second carrier, wherein the P first time units and the Q second time units comprise M time units with the same time domain positions, P is larger than M, and M is an integer larger than or equal to 1.
7. 7. The method of claim 6, wherein P is equal to Q.
8. 8. The method according to claim 6 or 7, wherein the interval of the P first time units is smaller than the interval of the M time units.
9. 9. The method according to any of claims 6-8, wherein the Q second time units are less spaced than the M time units.
10. 10. The method according to any one of claims 6-9, further comprising: And sending capability reporting information to a sending device, wherein the capability reporting information is used for indicating that the maximum capability of a receiving device for keeping phase continuity on the first carrier wave and the second carrier wave is continuous N time units, and the continuous N time units comprise the M time units.
11. 11. The method according to any one of claims 6-10, further comprising: and sensing based on the echo signals received by the M time units, and obtaining a first sensing result of the target, wherein the first sensing result comprises a first speed and/or a first distance.
12. 12. The method according to any one of claims 6-11, further comprising: And sensing based on the echo signals of the first sensing signals to obtain second sensing results of the targets, wherein the second sensing results comprise a second speed and/or a second distance.
13. 13. The method according to any one of claims 6-12, further comprising: Sensing based on the sensing signals received by the M time units to obtain a first sensing result of the target, wherein the first sensing result comprises a first speed and/or a first distance; Sensing based on the echo signals of the first sensing signals to obtain second sensing results of the targets, wherein the second sensing results comprise a second speed and/or a second distance; and obtaining a target perception result of the target based on the first perception result and the second perception result.
14. 14. A signal transmission device comprising a processor and a communication interface, the processor coupled to the communication interface, the processor configured to: Transmitting first sensing signals on P first time units in a first carrier wave through the communication interface; And transmitting a second sensing signal on Q second time units in a second carrier wave through the communication interface, wherein the P first time units and the Q second time units comprise M time units with the same time domain positions, P is larger than M, and M is an integer larger than or equal to 1.
15. 15. The apparatus of claim 14, wherein P is equal to Q.
16. 16. The apparatus of claim 14 or 15, wherein the interval of the P first time units is smaller than the interval of the M time units.
17. 17. The apparatus of any of claims 14-16, wherein the Q second time units are less spaced than the M time units.
18. 18. The apparatus of any one of claims 14-17, wherein the processor is further configured to: Receiving capability report information from a receiving device through the communication interface, wherein the capability report information is used for indicating that the maximum capability of the receiving device for keeping phase continuity on the first carrier and the second carrier is continuous N time units, and the continuous N time units comprise the M time units; the processor is specifically configured to: Transmitting the first sensing signals on the P first time units in the first carrier wave through the communication interface based on the capability reporting information; And transmitting the second sensing signals on the Q second time units in the second carrier wave through the communication interface based on the capability reporting information.
19. 19. A signal transmission device comprising a processor and a communication interface, the processor coupled to the communication interface, the processor configured to: Receiving echo signals of a first perceived signal over P first time units in a first carrier via the communication interface; and receiving echo signals of a second sensing signal on Q second time units in a second carrier wave through the communication interface, wherein the P first time units and the Q second time units comprise M time units with the same time domain positions, P is larger than M, and M is an integer larger than or equal to 1.
20. 20. The apparatus of claim 19, wherein P is equal to Q.

Description

Signal transmission method and device Technical Field The present application relates to the field of communication perception integration technologies, and in particular, to a signal transmission method and apparatus. Background Ext> inext> Theext> evolutionext> ofext> Theext> fifthext> generationext> mobileext> communicationext> systemext> (ext> Theext> 5thext> Generation,5Gext>)ext> toext> Theext> 5ext> Gext> enhancedext> (ext> 5ext> Gext> -ext> aext>)ext> technologyext>,ext> Theext> communicationext> awarenessext> integrationext> technologyext> isext> consideredext> asext> oneext> ofext> keyext> technologiesext> capableext> ofext> expandingext> Theext> serviceext> capabilityext> ofext> Theext> mobileext> communicationext> networkext>.ext> The core idea of the technology is to newly increase the perception capability on a mobile communication network and construct the capability of detecting, tracking and imaging the target, so that the communication and perception capabilities are integrated in one network, and the harmonious coexistence, even the reciprocal are realized. The communication technology is that a transmitting end modulates information on radio waves and transmits the information to a receiving end, which demodulates a signal carried on the radio waves to acquire the information. The sensing technology is that a transmitting end transmits radio waves (such as sensing signals) to a specific direction, and when the radio waves irradiate the surface of a target, reflected radio waves (such as echo signals) are formed, so that a receiving end receives and processes the reflected radio waves to acquire information such as the distance, the speed and the type of the target. Since the resolution of the distance sensing is related to the bandwidth of the carrier carrying the sensing signal, and the equivalent bandwidth of the multiple carriers is larger than the bandwidth of the single carrier, joint sensing by multiple carriers may lead to better sensing performance, such as higher resolution of the distance measurement. In summary, how to perform joint sensing through multiple carriers to improve sensing performance is a problem that needs to be solved in the industry. Disclosure of Invention The embodiment of the application provides a signal transmission method and a signal transmission device, which can improve the perception performance. In a first aspect, an embodiment of the present application provides a signal transmission method, where the method may include sending a first sensing signal on P first time units in a first carrier, and sending a second sensing signal on Q second time units in a second carrier, where the P first time units and the Q second time units include M time units with identical time domain positions, P is greater than M, and M is an integer greater than or equal to 1. Alternatively, the method may be performed by a transmitting device. The longer the phase is kept continuous, the higher the resolution of the speed sensing is, and conversely, the lower the resolution of the speed sensing is. By adopting the signal transmission method provided by the embodiment of the application, the time length (namely, continuous P time units) of which the phase is kept continuous on a single carrier (such as a first carrier) is longer than the time length (namely, continuous M time units) of which the phase is kept continuous on multiple carriers (such as the first carrier and a second carrier), namely, the speed resolution of echo signal perception based on the single carrier is greater than the speed resolution of echo signal detection based on multiple carriers, so that the speed perception resolution can be improved. Alternatively, the time units (e.g., the first time unit) mentioned in the embodiments of the present application may be frames, slots, symbols, etc. In the embodiment of the present application, the time unit is taken as an example for description, but the embodiment of the present application is not limited thereto. Alternatively, in the embodiment of the present application, the P first time units may be distributed at equal intervals or unequal intervals, which is not limited in the embodiment of the present application. Alternatively, in the embodiment of the present application, the interval of the P first time units may be less than or equal to the interval of the M time units, which is not limited in the embodiment of the present application. In one possible implementation, the interval of the P first time units is smaller than the interval of the M time units. It should be noted that, the transmission interval of the sensing signal determines the range of speed sensing, for example, the smaller the transmission interval is, the larger the range of speed sensing is, and conversely, the smaller the range of speed sensing is. By adopting the signal transmission method provided by the embodiment of the application, the transmission interval of the sending dev