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EP-3836433-B1 - MONITORING METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM

EP3836433B1EP 3836433 B1EP3836433 B1EP 3836433B1EP-3836433-B1

Inventors

  • ZHOU, JUEJIA

Dates

Publication Date
20260506
Application Date
20180810

Claims (8)

  1. A listening method, comprising: listening in to a first frequency band group (301), wherein the first frequency band group comprises p first frequency bands, and p is a positive integer; listening in to a second frequency band group in response to determining that the p first frequency bands are all occupied (302), wherein the second frequency band group comprises q second frequency bands, and q is a positive integer; wherein the p first frequency bands and the q second frequency bands are on an unlicensed spectrum, and a listening priority of the first frequency bands is higher than the listening priority of the second frequency bands; wherein the method further comprises: receiving a listening frequency band set from a base station (502), wherein the listening frequency band set comprises at least two frequency bands on the unlicensed spectrum required to be listened by user equipment, UE, and the listening frequency band set comprises the p first frequency bands and the q second frequency bands; wherein the listening in to a first frequency band group (301) comprises: after receiving the listening frequency band set from the base station, acquiring the p first frequency bands from the listening frequency band set to form the first frequency band group; and listening in to the first frequency band group; wherein the listening frequency band set is sent to the UE from the base station after the UE accesses and operates on the unlicensed spectrum; wherein the method further comprises: acquiring priority information (503), wherein the priority information is used for indicating the listening priorities of the frequency bands included in the listening frequency band set; the listening in to a second frequency band group in response to determining that the p first frequency bands are all occupied (302) comprises: in response to determining that the p first frequency bands are all occupied, acquiring the q second frequency bands, the listening priority of which is lower than that of the first frequency bands, from the listening frequency band set according to the priority information, so as to form the second frequency band group; and listening in to the second frequency band group; wherein the UE comprises m radio frequency modules, m is a positive integer, each of the radio frequency modules corresponds to a frequency band set, and said radio frequency module is used for listening in to frequency bands in a corresponding frequency band set, wherein the frequency band set comprises at least one frequency band in the listening frequency band set, and the listening priority of the frequency band in the frequency band set is the same as the listening priority of the radio frequency module corresponding to the frequency band set; and the priority information is obtained according to the listening priorities of the m radio frequency modules.
  2. The method according to claim 1, wherein the first frequency bands and the second frequency bands are on different component carriers, CCs; or the first frequency bands and the second frequency bands are in different bandwidth parts, BWPs.
  3. The method according to claim 1, wherein the acquiring the p first frequency bands from the listening frequency band set to form the first frequency band group after receiving the listening frequency band set sent from the base station comprises: after receiving the listening frequency band set sent from the base station, acquiring the p first frequency bands with the highest listening priority from the listening frequency band set according to the priority information, so as to form the first frequency band group.
  4. The method according to any one of claims 1 to 3, wherein the listening in to a second frequency band group in response to determining that the p first frequency bands are all occupied comprises: in response to continuously determining for n times that the p first frequency bands are all occupied, listening in to the second frequency band group, wherein n is a preset number of times of listening in to the first frequency band group, and n is a positive integer.
  5. The method according to claim 4, wherein the number of times n of listening in to the first frequency band group is sent to the UE by the base station through a high layer signaling or a physical layer signaling.
  6. The method according to any one of claims 1 to 3, wherein the listening in to a second frequency band group in response to determining that the p first frequency bands are all occupied (302) comprises: in response to determining that all the p first frequency bands have been occupied for a continuous period, listening in to the second frequency band group.
  7. The method according to claim 6, wherein the continuous period is sent to the UE by the base station through a high layer signaling or a physical layer signaling.
  8. User equipment, comprising: a processor; and memory for storing instructions executable by the processor; wherein the processor is configured to: listen in to a first frequency band group, wherein the first frequency band group comprises p first frequency bands, and p is a positive integer; listen in to a second frequency band group in response to determining that the p first frequency bands are all occupied, wherein the second frequency band group comprises q second frequency bands, and q is a positive integer; wherein the first frequency bands and the second frequency bands are on an unlicensed spectrum, and a listening priority of the first frequency bands is higher than the listening priority of the second frequency bands; wherein the processor is further configured to: receive the listening frequency band set from a base station, wherein the listening frequency band set comprises the p first frequency bands and the q second frequency bands; after receiving the listening frequency band set from the base station, acquire the p first frequency bands from the listening frequency band set to form the first frequency band group; and listen in to the first frequency band group; wherein the listening frequency band set is sent to the user equipment, UE, from the base station after the UE accesses and operates on the unlicensed spectrum; wherein the processor is further configured to: acquire priority information, wherein the priority information is used for indicating the listening priorities of the frequency bands included in the listening frequency band set; the processor is further configured to: in response to determining that the p first frequency bands are all occupied, acquire the q second frequency bands, the listening priority of which is lower than that of the first frequency bands, from the listening frequency band set according to the priority information, so as to form the second frequency band group; and listen in to the second frequency band group; wherein the UE comprises m radio frequency modules, m is a positive integer, each of the radio frequency modules corresponds to a frequency band set, and said radio frequency module is used for listening in to frequency bands in a corresponding frequency band set, wherein the frequency band set comprises at least one frequency band in the listening frequency band set, and the listening priority of the frequency band in the frequency band set is the same as the listening priority of the radio frequency module corresponding to the frequency band set; and the priority information is obtained according to the listening priorities of the m radio frequency modules.

Description

TECHNICAL FIELD The present disclosure relates to wireless communication technologies, in particular to a listening method, a listening device, equipment and a storage medium. BACKGROUND With the development of wireless communication technology, more and more communication systems can operate on unlicensed spectrums. Since multiple communication systems operate on the unlicensed spectrum, communication on the unlicensed spectrum generally adopts a listen before talk (LBT) mechanism to ensure the fairness of multiple communication systems. That is, a device needs to listen in to a frequency band on the unlicensed frequency spectrum before transmitting communication data, and can occupy the frequency band to transmit communication data when it is determined that the frequency band is idle. In the related art, user equipment (UE) operating on the unlicensed spectrum needs to listen in to multiple frequency bands on the unlicensed frequency spectrum simultaneously. When it is determined that a certain frequency band is not occupied, the UE may occupy that frequency band to transmit communication data. However, more power will be consumed due to listening in to multiple frequency bands simultaneously by the UE. WO 2017/133612 A1 discloses a method for a wireless communication system, including: determining, based on carrier grouping information for an unlicensed frequency band and an uplink scheduling grant for the unlicensed frequency band received from a base station, a group of carriers on which channel detection is to be performed; and performing channel detection on a carrier in the determined group of carriers using channel detection parameters received from the base station. WO 2017/030603 A1 discloses a method for multi-carrier listen before talk operations. Non-patent disclosure "R1-1801557" discusses the feasibility of NR frame structure and then some enhanced channel access schemes for NR.. SUMMARY The invention is defined by the independent claims. Dependent claims constitute embodiments of the invention. Embodiments of the present disclosure provide a listening method, a listening device, equipment, and a storage medium, through which energy consumed by UE for listening in to a frequency band on an unlicensed spectrum is reduced. The technical solutions provided by the embodiments of the present disclosure may at least have the following beneficial effects. The p first frequency bands with a higher listening priority on the unlicensed spectrum are listened, and when it is detected that the p first frequency bands are all occupied, q second frequency bands on the unlicensed spectrum are listened, where the listening priority of the second frequency bands is lower than the listening priority of the first frequency bands. In this way, the UE operating on the unlicensed spectrum can first listen in to the p first frequency bands with higher priority on the unlicensed spectrum, and then listen in to the q second frequency bands with relative lower priority when it is determined that all the p first frequency bands are occupied (i.e., when the UE fails to transmit communication data through the p first frequency bands), so as to transmit communication data through the q second frequency bands. Thus, the number of frequency bands simultaneously listened by the UE is reduced, thereby reducing energy consumed by the UE for listening in to the frequency bands on the unlicensed spectrum. It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and not intended to limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS The drawings herein are incorporated into the specification and constitute a part of the disclosure, show embodiments that conform to the disclosure and together with the specification are used to explain the principle of the disclosure. FIG. 1 is a schematic diagram illustrating that UE listens in to multiple frequency bands on an unlicensed spectrum simultaneously.FIG. 2 is a schematic diagram illustrating that UE listens in to multiple frequency bands on an unlicensed spectrum simultaneously.FIG. 3 is a schematic diagram showing an implementation environment according to an exemplary embodiment.FIG. 4 is a flow diagram showing a listening method according to an exemplary embodiment.FIG. 5 is a flow diagram showing a listening method according to an exemplary embodiment.FIG. 6 is a flow diagram showing a listening method according to an exemplary embodiment.FIG. 7 is a schematic diagram showing that the UE listens in to frequency bands on an unlicensed spectrum according to an exemplary embodiment.FIG. 8 is a block diagram showing a listening device according to an exemplary embodiment.FIG. 9 is a block diagram showing a listening device according to an exemplary embodiment.FIG. 10 is a block diagram showing a listening device according to an exemplary embodiment.FIG. 11 is a block diagram showing a listening d