US-12628193-B2 - Frequency band scheduling method, communication node, and computer-readable storage medium

US12628193B2US 12628193 B2US12628193 B2US 12628193B2US-12628193-B2

Abstract

Provided are a frequency band scheduling method, a communication node, and a computer-readable storage medium. The method includes that: a reference frequency band and at least one detection frequency band are acquired, where the reference frequency band is a frequency band in which a first system does not interfere with a second system, and the at least one detection frequency band is a frequency band in which the first system and the second system interfere with each other; frequency band configuration information is sent to a terminal device, where the frequency band configuration information includes configuration information of the reference frequency band and configuration information of all detection frequency bands; frequency band measurement information that the terminal device sends according to the frequency band configuration information is received.

Inventors

Zhikang SONG
Jiangyun Zhou
Meiying WANG
Lu Liu

Assignees

ZTE CORPORATION

Dates

Publication Date: 20260512
Application Date: 20220128
Priority Date: 20210303

Claims (16)

1 . A frequency band scheduling method, applied to a network device, comprising: acquiring a reference frequency band and at least one detection frequency band, wherein the reference frequency band is a frequency band in which a first system does not interfere with a second system, and the at least one detection frequency band is a frequency band in which the first system and the second system interfere with each other; sending frequency band configuration information to a terminal device, wherein the frequency band configuration information comprises configuration information of the reference frequency band and configuration information of all detection frequency bands; receiving frequency band measurement information that the terminal device sends according to the frequency band configuration information, wherein the frequency band measurement information comprises measurement information of the reference frequency band and measurement information of the all detection frequency bands; and determining an available frequency band of the terminal device according to the frequency band measurement information; wherein the acquiring the reference frequency band and the at least one detection frequency band comprises: dividing a frequency band of the first system into an interference-free frequency band and an interference frequency band; and configuring the interference-free frequency band as the reference frequency band, and dividing the interference frequency band into the at least one detection frequency band according to a granularity of the second system.
2 . The frequency band scheduling method of claim 1 , wherein the receiving the frequency band measurement information that the terminal device sends according to the frequency band configuration information comprises: periodically receiving the measurement information of the reference frequency band sent by the terminal device; and sending a frequency band detection indication to the terminal device at an interference detection occasion; and receiving the measurement information of the all detection frequency bands sent by the terminal device.
3 . The frequency band scheduling method of claim 1 , wherein in response to determining that a number of detection frequency bands is equal to i, the determining the available frequency band of the terminal device according to the frequency band measurement information comprises: acquiring j detection frequency bands satisfying a preset condition from i detection frequency bands according to the frequency band measurement information, wherein i≥1, 0≤j≤i, and i and j are integers; and configuring the j detection frequency bands and the reference frequency band as the available frequency band of the terminal device.
4 . The frequency band scheduling method of claim 3 , wherein the acquiring the j detection frequency bands satisfying the preset condition from the i detection frequency bands comprises: determining whether a difference value between measurement information of an x-th detection frequency band and the measurement information of the reference frequency band is greater than a preset threshold; and indicating that the x-th detection frequency band does not satisfy the preset condition based on a determination result that the difference value between the measurement information of the x-th detection frequency band and the measurement information of the reference frequency band is greater than the preset threshold; and indicating that the x-th detection frequency band satisfies the preset condition based on a determination result that the difference value between the measurement information of the x-th detection frequency band and the measurement information of the reference frequency band is less than or equal to the preset threshold, wherein x is an integer, and x is gradually increased from 1 to i in units of 1.
5 . The frequency band scheduling method of claim 3 , wherein in response to determining of j≥1, after the configuring the j detection frequency bands and the reference frequency band as the available frequency band of the terminal device, the method further comprises: in response to determining that a communication quality at a previous occasion of the terminal device is superior to a communication quality at a current occasion, configuring the reference frequency band as an the available frequency band of the terminal device.
6 . The frequency band scheduling method of claim 1 , wherein the frequency band configuration information is a channel state information-reference signal (CSI-RS) configuration, and the frequency band measurement information is channel state information (CSI).
7 . A non-transitory computer-readable storage medium, storing a computer program, wherein the computer program, when executed by a processor, implements the frequency band scheduling method of any one of claim 1 .
8 . A frequency band scheduling method, applied to a terminal device, comprising: receiving frequency band configuration information sent by a network device, wherein the frequency band configuration information comprises configuration information of a reference frequency band and configuration information of all detection frequency bands, the reference frequency band is a frequency band in which a first system does not interfere with a second system with each other, and the detection frequency band is a frequency band in which the first system and the second system interfere with each other; acquiring frequency band measurement information and sending the frequency band measurement information to the network device according to the frequency band configuration information, wherein the frequency band measurement information comprises measurement information of the reference frequency band and measurement information of the all detection frequency bands; and receiving an available frequency band sent by the network device; wherein a frequency band of the first system is divided into an interference-free frequency band and an interference frequency band, the interference-free frequency band is configured as the reference frequency band, and the interference frequency band is divided into least one detection frequency band according to a granularity of the second system.
9 . The frequency band scheduling method of claim 8 , wherein the acquiring the frequency band measurement information and sending the frequency band measurement information to the network device comprises: periodically measuring on the reference frequency band, and sending the measurement information of the reference frequency band to the network device; receiving a frequency band detection indication sent by the network device at an interference detection occasion; and measuring on the all detection frequency bands according to the frequency band detection indication, and sending the measurement information of the all detection frequency bands to the network device.
10 . The frequency band scheduling method of claim 8 , wherein the frequency band configuration information is a channel state information-reference signal (CSI-RS) configuration; and the frequency band measurement information is channel state information (CSI).
11 . A communication node, comprising a processor, wherein the processor is configured to, when executing a computer program, implement a frequency band scheduling method, wherein the frequency band scheduling method comprises: acquiring a reference frequency band and at least one detection frequency band, wherein the reference frequency band is a frequency band in which a first system does not interfere with a second system, and the at least one detection frequency band is a frequency band in which the first system and the second system interfere with each other; sending frequency band configuration information to a terminal device, wherein the frequency band configuration information comprises configuration information of the reference frequency band and configuration information of all detection frequency bands; receiving frequency band measurement information that the terminal device sends according to the frequency band configuration information, wherein the frequency band measurement information comprises measurement information of the reference frequency band and measurement information of the all detection frequency bands; and determining an available frequency band of the terminal device according to the frequency band measurement information; wherein the acquiring the reference frequency band and the at least one detection frequency band comprises: dividing a frequency band of the first system into an interference-free frequency band and an interference frequency band; and configuring the interference-free frequency band as the reference frequency band, and dividing the interference frequency band into the at least one detection frequency band according to a granularity of the second system.
12 . The communication node of claim 11 , wherein the receiving the frequency band measurement information that the terminal device sends according to the frequency band configuration information comprises: periodically receiving the measurement information of the reference frequency band sent by the terminal device; and sending a frequency band detection indication to the terminal device at an interference detection occasion; and receiving the measurement information of the all detection frequency bands sent by the terminal device.
13 . The communication node of claim 11 , wherein in response to determining that a number of detection frequency bands is equal to i, the determining the available frequency band of the terminal device according to the frequency band measurement information comprises: acquiring j detection frequency bands satisfying a preset condition from i detection frequency bands according to the frequency band measurement information, wherein i≥1, 0≤j≤i, and i and j are integers; and configuring the j detection frequency bands and the reference frequency band as the available frequency band of the terminal device.
14 . The communication node of claim 13 , wherein the acquiring the j detection frequency bands satisfying the preset condition from the i detection frequency bands comprises: determining whether a difference value between measurement information of an x-th detection frequency band and the measurement information of the reference frequency band is greater than a preset threshold; and indicating that the x-th detection frequency band does not satisfy the preset condition based on a determination result that the difference value between the measurement information of the x-th detection frequency band and the measurement information of the reference frequency band is greater than the preset threshold; and indicating that the x-th detection frequency band satisfies the preset condition based on a determination result that the difference value between the measurement information of the x-th detection frequency band and the measurement information of the reference frequency band is less than or equal to the preset threshold, wherein x is an integer, and x is gradually increased from 1 to i in units of 1.
15 . The communication node of claim 13 , wherein in response to determining of j≥1, after the configuring the j detection frequency bands and the reference frequency band as the available frequency band of the terminal device, the method further comprises: in response to determining that a communication quality at a previous occasion of the terminal device is superior to a communication quality at a current occasion, configuring the reference frequency band as an the available frequency band of the terminal device.
16 . The communication node of claim 11 , wherein the frequency band configuration information is a channel state information-reference signal (CSI-RS) configuration, and the frequency band measurement information is channel state information (CSI).

Description

CROSS REFERENCE TO RELATED APPLICATIONS This is a National Stage Application, filed under 35 U.S.C. 371, of International Patent Application No. PCT/CN2022/074761, filed on Jan. 28, 2022, which is based on and claims priority to Chinese Patent Application No. 202110236699.1 filed with the China National Intellectual Property Administration (CNIPA) on Mar. 3, 2021, the disclosure of which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present application relates to the technical field of communications, for example, to a frequency band scheduling method, a communication node, and a computer-readable storage medium. BACKGROUND With the rapid development of wireless communication technology, radio frequency bands are increasingly crowded. In order to ensure the normal communication quality, when the frequency band overlap exists between different systems (such as a new radio (NR) system and a long term evolution (LTE) system), the interference detection and its circumvention techniques are indispensable. However, the interference detection and its circumvention techniques in the related art are relatively limited, and the spectrum utilization rate is low, thereby affecting the transmission performance. SUMMARY Embodiments of the present application propose a frequency band scheduling method, a communication node and a computer-readable storage medium, which can determine the strength or weakness of frequency band interference between different systems in real time, so that an available frequency band of a terminal device is adjusted dynamically to obtain the better transmission performance. An embodiment of the present application provides a frequency band scheduling method applied to a network device. The method includes that: a reference frequency band and at least one detection frequency band are acquired, where the reference frequency band is a frequency band in which a first system does not interfere with a second system, and the at least one detection frequency band is a frequency band in which the first system and the second system interfere with each other; frequency band configuration information is sent to a terminal device, where the frequency band configuration information includes configuration information of the reference frequency band and configuration information of all detection frequency bands; frequency band measurement information that the terminal device sends according to the frequency band configuration information is received, where the frequency band measurement information includes measurement information of the reference frequency band and measurement information of the all detection frequency bands; and an available frequency band of the terminal device is determined according to the frequency band measurement information. An embodiment of the present application further provides a frequency band scheduling method applied to a terminal device. The method includes that: frequency band configuration information sent by a network device is received, where the frequency band configuration information includes configuration information of a reference frequency band and configuration information of all detection frequency bands, the reference frequency band is a frequency band in which a first system does not interfere with a second system with each other, and the detection frequency band is a frequency band in which the first system and the second system interfere with each other; frequency band measurement information is acquired and the frequency band measurement information is sent to the network device according to the frequency band configuration information, where the frequency band measurement information includes measurement information of the reference frequency band and measurement information of the all detection frequency bands; and an available frequency band sent by the network device is received. An embodiment of the present application further provides a communication node. The communication node includes a processor, and the processor is configured to, when executing a computer program, implement the method of any of the embodiments described above. An embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the method of any of the embodiments described above. According to the frequency band scheduling method, the communication node, and the computer-readable storage medium provided in the present application, the network device is configured to: acquire frequency band measurement information of a frequency band where the interference may exist by using the terminal device, and determine the strength or weakness of interference of the frequency band in real time. As such, the network device can dynamically adjust the available frequency band of the terminal device to obtain the bet