Search

CN-122028179-A - Communication method and related device

CN122028179ACN 122028179 ACN122028179 ACN 122028179ACN-122028179-A

Abstract

The embodiment of the application discloses a communication method which is applied to a first communication device, wherein the first communication device comprises a first array antenna and a second array antenna, the method comprises the steps of receiving a first signal, the first signal comprises a first reference signal on a first frequency band and a second reference signal on a second frequency band, the second reference signal does not comprise a synchronous signal and a physical broadcast channel (SSB) reference signal, the first reference signal is received through the first array antenna, the second reference signal is received through the second array antenna, and the beam space information of the second signal on the second frequency band is determined based on the first signal. In this way, the first communication device can determine beam space information of the signal in the second frequency band without the SSB reference signal in the second frequency band, and transmit and receive the signal in the second frequency band.

Inventors

  • ZHANG ZIYUAN
  • SHEN ZHONGYI
  • HAN JING
  • ZHANG LI

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260512
Application Date
20241108

Claims (20)

  1. 1. A method of communication, the method being applied to a first communication device comprising a first array antenna and a second array antenna, the method comprising: receiving a first signal, wherein the first signal comprises a first reference signal on a first frequency band and a second reference signal on a second frequency band, the second reference signal does not comprise a synchronous signal and a physical broadcast channel block (SSB) reference signal, and the first reference signal is received through the first array antenna and the second reference signal is received through the second array antenna; Beam space information of a second signal on the second frequency band is determined based on the first signal.
  2. 2. The method of claim 1, wherein determining beam space information for a second signal on the second frequency band based on the first signal comprises: And determining a receiving direction of the second reference signal, wherein the receiving direction of the second reference signal is used for indicating beam space information of the second signal on the second frequency band.
  3. 3. The method of claim 2, wherein the determining the direction of reception of the second reference signal comprises: and determining the receiving direction of the second reference signal according to the receiving direction of the first reference signal.
  4. 4. A method according to claim 3, wherein prior to said receiving the first signal, the method further comprises: Transmitting a third signal, wherein the third signal is used for requesting to receive a second signal on the second frequency band; receiving a fourth signal, wherein the fourth signal is used for indicating the association relation between the transmitting beam of the first reference signal and the transmitting beam of the second reference signal; the determining the receiving direction of the second reference signal according to the receiving direction of the first reference signal includes: and determining the receiving direction of the second reference signal based on the first reference signal and the association relation.
  5. 5. The method according to claim 4, wherein the fourth signal is specifically configured to indicate that a mapping relationship of quasi co-sited type D is satisfied between the transmission beam of the first reference signal and the transmission beam of the second reference signal.
  6. 6. The method according to claim 4, wherein the fourth signal is specifically configured to indicate that beam space information between the transmission beam of the first reference signal and the transmission beam of the second reference signal is the same.
  7. 7. The method of claim 2, wherein the determining the direction of reception of the second reference signal comprises: and receiving the transmitting wave beams of the second reference signals in a plurality of directions to obtain the receiving directions of the second reference signals.
  8. 8. The method according to any of claims 1-7, wherein the first reference signal comprises an SSB reference signal and/or a time frequency offset tracking, TRS, reference signal of the first frequency band.
  9. 9. The method of any of claims 1-8, wherein the second reference signal comprises a TRS reference signal.
  10. 10. The method according to any one of claims 1-9, further comprising: and receiving the second signal according to the receiving direction of the second signal on the second frequency band.
  11. 11. A method of communication, the method being applied to a second communication device, the method comprising: transmitting a first signal to a first communication device, the first signal including a first reference signal on a first frequency band and a second reference signal on a second frequency band, the second reference signal not including a synchronization signal and a physical broadcast channel block SSB reference signal, wherein the first communication device includes a first array antenna for receiving the first reference signal and a second array antenna for receiving the second reference signal, the first signal for the first communication device determining beam space information of the second signal on the second frequency band; And transmitting the second signal.
  12. 12. The method of claim 11, wherein prior to transmitting the first signal to the first communication device, the method further comprises: receiving a third signal, wherein the third signal is used for requesting to send a second signal on the second frequency band; And transmitting a fourth signal, wherein the fourth signal is used for indicating the association relation between the transmitting beam of the first reference signal and the transmitting beam of the second reference signal.
  13. 13. The method according to claim 12, wherein the fourth signal is specifically configured to indicate that a mapping relationship of quasi co-sited type D is satisfied between the transmission beam of the first reference signal and the transmission beam of the second reference signal.
  14. 14. The method according to claim 12, wherein the fourth signal is specifically configured to indicate that beam space information between the transmission beam of the first reference signal and the transmission beam of the second reference signal is the same.
  15. 15. The method according to any of claims 12-14, wherein the transmission instant of the second signal is determined based on the transmission instant of the fourth signal.
  16. 16. The method according to any of claims 11-15, wherein the first reference signal comprises an SSB reference signal and/or a time frequency offset tracking, TRS, reference signal of the first frequency band.
  17. 17. The method of any of claims 11-16, wherein the second reference signal comprises a TRS reference signal.
  18. 18. A communication device, wherein the communication device is a first communication device, the communication device comprises a transceiver unit and a processing unit, wherein the transceiver unit comprises a first array antenna and a second array antenna; the transceiver unit is configured to perform the transmitting step or the receiving step in the method according to any one of the preceding claims 1 to 10; The processing unit is adapted to perform the steps of the method of any of the preceding claims 1 to 10, except for the transmitting step and the receiving step.
  19. 19. A communication device, characterized in that the communication device is a second communication device, and the communication device comprises a transceiver unit and a processing unit; the transceiver unit being adapted to perform the transmitting or receiving steps of the method of any of the preceding claims 11 to 17; The processing unit is adapted to perform the steps of the method of any of the preceding claims 11 to 17, except for the transmitting step and the receiving step.
  20. 20. A communication device comprising at least one processor, the at least one processor coupled to a memory; The memory is used for storing programs or instructions; The at least one processor is configured to execute the program or instructions to cause the apparatus to implement the method of any one of claims 1 to 10 or to cause the apparatus to implement the method of claim 11 or 17.

Description

Communication method and related device Technical Field The present application relates to the field of communications, and in particular, to a communication method and a related device. Background Carrier aggregation (carrier aggregation, CA) refers to the aggregation of multiple continuous or discrete carriers together to form a wider spectrum to meet the need for greater bandwidth in communication traffic. A secondary cell (SCell) refers to other cells than the primary cell (PRIMARY CELL, PCell). A User Equipment (UE) may activate scells to participate in carrier aggregation to enhance a transmission rate of data. However, for a UE comprising at least two array antennas, how to activate SCell in the absence of synchronization signal and physical broadcast channel block (SSB-less) is a current problem to be solved. Disclosure of Invention The embodiment of the application provides a communication method and a related device, which are used for enabling UE (user equipment) provided with at least two array antennas to activate an SCell under an SSB-less scene, so that the UE can send and receive signals on a frequency band of the SCell, and the data transmission rate is improved. In a first aspect, embodiments of the present application provide a communication method, where the method is performed by a first communication device, or where the method is performed by a part of a component (e.g. a processor, a chip, or a system on a chip, etc.) in the first communication device, or where the method may also be implemented by a logic module or software that is capable of implementing all or part of the functionality of the first communication device. In a first aspect and possible implementations thereof, the method is described as being performed by a first communication device. The method is applied to a first communication device comprising a first array antenna and a second array antenna, the method comprising: Receiving a first signal, wherein the first signal comprises a first reference signal on a first frequency band and a second reference signal on a second frequency band, the second reference signal does not comprise a synchronization signal and a physical broadcast channel block (SSB) reference signal, and the first reference signal is received through a first array antenna and the second reference signal is received through a second array antenna; Beam space information of a second signal on a second frequency band is determined based on the first signal. In the present application, the first communication device may be an Air To Ground (ATG) UE, where the first frequency band corresponds to a frequency band of the primary cell PSell, the second frequency band corresponds to a frequency band of the secondary cell SCell, and the first array antenna is configured to receive a downlink signal of the PCell. To meet the traffic demand, the first communication device needs to activate SCell to implement the enhanced functionality of carrier aggregation. The method includes receiving PSell a first reference signal by using a first array antenna and receiving a second reference signal of the SCell by a second array antenna, wherein the second reference signal does not include an SSB reference signal. The second signal on the second frequency band includes a reference signal and a data signal. Once the beam space information of the SCell's signal is determined, it indicates that the first communication device has the capability to transceive signals on the SCell, thereby enabling SCell activation in the SSB-lessd scenario. In one possible implementation, the determining beam space information of the second signal on the second frequency band based on the first signal includes: A reception direction of a second reference signal is determined, the reception direction of the second reference signal being used to indicate beam space information of the second signal on the second frequency band. In the present application, the beam space information of the signal of the SCell is determined mainly by determining the receiving direction of the second reference signal on the SCell. The receiving direction of the signal is determined, which ensures that the communication device can accurately establish connection with the SCell for receiving and transmitting the SCell signal. In one possible implementation, determining the receiving direction of the second reference signal includes: and determining the receiving direction of the second reference signal according to the receiving direction of the first reference signal. In one possible implementation, before receiving the first signal, the method further comprises: transmitting a third signal, wherein the third signal is used for requesting to receive a second signal on a second frequency band; receiving a fourth signal, wherein the fourth signal is used for indicating the association relation between the transmission beam of the first reference signal and the transmi