WO2021136425A1

WO2021136425A1 - Interference reduction method, access network device, communication terminal and computer-readable medium

Info

Publication number: WO2021136425A1
Application number: PCT/CN2020/141603
Authority: WO
Inventors: 李�荣
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-12-31
Filing date: 2020-12-30
Publication date: 2021-07-08
Also published as: CN113133101A

Abstract

The present disclosure provides a method for reducing interference, which is applied to a first access network device side, comprising: when in an idle period in a signal transmission cycle, transmitting a cell reference signal with a transmission power less than a preset power in at least some channels; when in a non-idle period in the signal transmission cycle, transmitting the cell reference signal with a transmit power greater than or equal to the preset power in all channels; configuring corresponding measurement configuration information for each user terminal in all subordinate user terminals, so that each user terminal performs cell reference signal measurement during at least part of the non-idle period according to the measurement configuration information, and does not perform cell reference signal measurement during the idle period. The present disclosure further provides an access network device, a communication terminal, and a computer-readable medium.

Description

Method for reducing interference, access network equipment, communication terminal and computer readable medium

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office with an application number of 201911408164.7 on December 31, 2019, and the entire content of the application is incorporated into this application by reference.

Technical field

The present disclosure relates to the field of communication technology, for example, to a method for reducing interference, an access network device, a communication terminal, and a computer-readable medium.

Background technique

In the 4th Generation (4G) radio access network (also known as the Long Term Evolution (LTE) system), the Cell Reference Signal (CRS) plays a key role in downlink synchronization and channel estimation. It is configured to be online in real time and transmitted in the full frequency band, which causes inter-cell interference in the 4G wireless access network. In addition, if the cell reference signal is sent online in real time regardless of the current traffic load and the cell reference signal is sent in the full frequency band, it is easy to cause waste of resources and uneven allocation.

At the same time, with the development of the 5th Generation (5G) communication technology, dynamic spectrum sharing technology has become a key technology for the evolution from 4G to 5G. However, during downlink sharing, 4G pilots cause serious interference with multiple channels of 5G. This eliminates the interference between the two network standards when 4G and 5G networks are shared.

Summary of the invention

The present disclosure solves at least one of the technical problems existing in the related art, and proposes a method for reducing interference, an access network device, a communication terminal, and a computer-readable medium.

The embodiments of the present disclosure provide a method for reducing interference, which is applied to the first access network device side, and includes:

When in the idle period of the signal transmission period, transmit the cell reference signal with a transmission power less than a preset power in at least part of the channels;

When in a non-idle period in the signal transmission period, transmit the cell reference signal with a transmission power greater than or equal to the preset power in all channels;

Configure the corresponding measurement configuration information for each user terminal in all the user terminals under it, so that each user terminal performs the cell reference signal measurement at least part of the time in the non-idle period according to the measurement configuration information Measurement, and the cell reference signal measurement is not performed during the idle period.

The embodiments of the present disclosure provide another method for reducing interference, which is applied to the user terminal side, including:

Receiving measurement configuration information issued by the first access network device side, where the measurement configuration information includes: a signal transmission period of the first access network device, and the signal transmission period includes an idle period and a non-idle period;

In response to the measurement configuration information, the cell reference signal measurement is performed at least part of the time in the non-idle period, and the cell reference signal measurement is not performed during the idle period.

The embodiments of the present disclosure provide an access network device, including:

One or more processors;

Storage device, set to store one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the interference reduction method as described above.

The embodiment of the present disclosure provides a communication terminal, including:

One or more processors;

Storage device, set to store one or more programs;

The embodiments of the present disclosure provide a computer-readable medium on which a computer program is stored, and when the program is executed by a processor, the method for reducing interference as provided above is implemented.

Description of the drawings

FIG. 1 is a flowchart of a method for reducing interference provided by an embodiment of the disclosure;

FIG. 2 is a flowchart of another method for reducing interference provided by an embodiment of the present disclosure;

FIG. 3 is a flowchart of another method for reducing interference provided by an embodiment of the disclosure;

FIG. 4 is a flowchart of still another method for reducing interference provided by an embodiment of the disclosure;

FIG. 5 is a flowchart of still another method for reducing interference provided by an embodiment of the disclosure;

FIG. 6 is a flowchart of still another method for reducing interference provided by an embodiment of the disclosure;

Fig. 7 is a signaling diagram of yet another method for reducing interference provided by an embodiment of the disclosure.

Detailed ways

To enable those skilled in the art to better understand the technical solutions of the present disclosure, the method for reducing interference, access network equipment, communication terminals, and computer-readable media provided by the present disclosure will be described below with reference to the accompanying drawings.

Hereinafter, example embodiments will be described more fully with reference to the accompanying drawings, but the example embodiments may be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. The purpose of providing these embodiments is to make the present disclosure thorough and complete, and to enable those skilled in the art to fully understand the scope of the present disclosure.

The terms used herein are only used to describe specific embodiments and are not intended to limit the present disclosure. As used herein, the singular forms "a" and "the" are also intended to include the plural forms, unless the context clearly dictates otherwise. It will also be understood that when the terms "comprising" and/or "made of" are used in this specification, it specifies the presence of the described features, wholes, steps, operations, elements and/or components, but does not exclude the presence or Add one or more other features, wholes, steps, operations, elements, components, and/or groups thereof.

It will be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Therefore, without departing from the teachings of the present disclosure, the first element, the first component, or the first module discussed below may be referred to as the second element, the second component, or the second module.

Unless otherwise defined, the meanings of all terms (including technical and scientific terms) used herein are the same as those commonly understood by those of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the related technology and the present disclosure, and will not be interpreted as having idealized or excessive formal meanings, Unless this article specifically defines it as such.

The interference reduction method provided by the present disclosure can be used to configure the cell reference signal measurement of all subordinate user terminals on the basis of the signal transmission period configured with the cell reference signal, so as to achieve energy saving of access network equipment and reduce cell reference signals The interference produced.

FIG. 1 is a flowchart of a method for reducing interference provided by an embodiment of the disclosure. As shown in Figure 1, this method is applied to the side of the first access network device, which is suitable for 4G Frequency Division Duplex (FDD) mode wireless access network and 4G Time Division Duplex ( Time Division Duplex (TDD) mode radio access network. For example, the first access network device is a 4G radio access network base station.

An intelligent scheduling mechanism is pre-stored in the first access network device. The intelligent scheduling mechanism defines a signal transmission period of the first access network device. The signal transmission period includes an idle period and a non-idle period. Based on this scheduling mechanism, the services of the first access network device can be concentrated in some specific subframes (non-idle periods) as much as possible, and the transmit power of the cell reference signal sent in the remaining idle subframes (idle periods) is less than the preset power (if When the transmit power is 0, it can be regarded as no cell reference signal is sent to the outside). The preset power can be set or adjusted according to actual needs, and the calculation scheme of the present disclosure does not limit the value of the preset power.

The interference reduction methods include:

Step S1a: When in an idle period in the signal transmission period, transmit the cell reference signal in at least part of the channels with a transmission power less than a preset power.

In some embodiments, the idle period includes at least one idle subframe, and the non-idle period includes at least one non-idle subframe. The first access network device uses a corresponding scheduler to schedule services into multiple non-idle subframes according to the system capacity. For multiple idle subframes, the cell reference signal is transmitted with low power or zero power in at least some channels, thereby reducing or even completely eliminating interference to other communication services.

Step S1b: When in a non-idle period in the signal transmission period, transmit the cell reference signal with a transmission power greater than or equal to a preset power in all channels.

In the non-idle period, the transmit power of the cell reference signal sent in all channels is not only greater than or equal to the preset power, but also less than or equal to the rated maximum transmit power.

In the embodiment of the present disclosure, when in a non-idle period, the first access network device transmits the cell reference signal with normal transmission power (greater than or equal to the preset power and less than or equal to the rated maximum transmission power) in all channels, For the user terminal to measure the cell reference signal.

Step S2: Configure corresponding measurement configuration information for each user terminal in all the user terminals under it, so that each user terminal performs cell reference signal measurement at least part of the time in the non-idle period according to the measurement configuration information, and No cell reference signal measurement is performed during the idle period.

In some embodiments, corresponding to the transmission configuration of the cell reference signal of the first access network device, multiple user terminals measure the cell reference signal in their specific non-idle subframes according to the measurement configuration information, and at the same time, perform cell reference signal measurements in the idle subframes. The cell reference signal measurement is not performed in this mode, which does not affect the long-term measurement of the terminal and avoids error reporting. By setting the offset coefficient corresponding to the subframe number, the user terminal can perform the corresponding service flow in the specific non-idle subframe.

In the embodiment of the present disclosure, the order of execution of step S1a and step S1b and their respective execution times are not limited. The execution order of step S1a and step S1b and their respective execution times are set by the intelligent scheduling mechanism. "Idle period" and "Non-idle period" are determined. In addition, in the embodiments of the present disclosure, the order of execution of step S2 and step S1a or step S1b is not limited, that is, step S2 can be executed before step S1a/step S1b, or after step S1a/step S1b, or with S1a or step S1b is executed synchronously. The figure only illustrates the case where both steps S1a and S1b are performed once, and step S1b is performed after step S1a, and step S2 is performed after step S1b. Other cases are not illustrated here.

In some embodiments, during the idle period, the first access network device only transmits the cell reference signal on the broadcast channel, and does not transmit the cell reference signal on other channels except the broadcast channel, so as to prevent other cells or access network devices from sending cell reference signals. Subordinate user terminals report bad information after performing inter-frequency measurement during idle periods. Using the muting technique, only the cell reference signals of the 6 resource blocks in the middle of the cell are reserved, and the power of the cell reference signals of other frequencies is zero.

In some embodiments, when the service load is low, the first access network device can use the corresponding scheduler to schedule regular services into multiple non-idle subframes according to the system capacity, and close some time slots, so as not to affect the terminal. While measuring and demodulating, the equipment realizes the effect of energy saving; when the service load increases, the first access network equipment is rescheduled to avoid affecting the normal operation of the equipment. Conventional services involve the issuance of Physical Downlink Control Channel (PDSCH) and cell reference signals.

The method provided by the embodiments of the present application can realize the configuration of the terminal cell reference signal measurement based on the signal transmission period of the cell reference signal, without affecting the working performance, while ensuring the quality of normal communication services, and meeting the requirements of the access network. The energy-saving requirements of the equipment have also reduced the inter-cell interference in the 4G wireless access network and the interference between the two network standards when the 4G and 5G networks are shared.

FIG. 2 is a flowchart of another method for reducing interference provided by an embodiment of the disclosure. As shown in Figure 2, this method is an optional implementation based on the method shown in Figure 1. In step S2, the measurement configuration information includes: Discontinuous Reception (DRX) configuration information.

The discontinuous reception configuration information may include: discontinuous reception period, discontinuous reception state and first bias coefficient. The discontinuous reception state includes discontinuous reception active state and discontinuous reception sleep state, and the first bias coefficient is used to indicate the user The terminal performs the corresponding business process in a specific subframe. Generally speaking, for the consideration of synchronization, the discontinuous reception period is set corresponding to the signal transmission period of the cell reference signal, and the subframe length in the discontinuous reception period corresponds to the subframe length in the signal transmission period.

The interference reduction method not only includes step S1a, step S1b, and step S2, but also includes step S3 and step S4. Only step S3 and step S4 will be described below.

Step S3: When switching from a non-idle period to an idle period, it is detected whether there is a user terminal in a discontinuous reception active state.

Different from the user terminal in the discontinuous reception active state, the user terminal in the discontinuous reception dormant state will not execute part of the business process, for example, it will not execute the cell reference signal measurement process.

When there is a user terminal in the discontinuous reception active state, step S4 is executed; when there is no user terminal in the discontinuous reception active state, that is, all subordinate user terminals are in the discontinuous reception sleep state, no other processing is performed.

Step S4: Send a media access control layer control element (MACce) to the user terminal in the discontinuous reception active state to control the user terminal in the discontinuous reception active state to switch to the discontinuous reception sleep state.

In step S4, in order to ensure that when the next idle period starts, all user terminals under the subordinates are in the discontinuous reception dormant state, based on the detection result in step S3, the media access control layer is sent to the user terminal in the discontinuous reception active state The control element is used to control the user terminal in the discontinuous reception active state to switch to the discontinuous reception sleep state.

The embodiments of the present disclosure provide a method for reducing interference. The method can be used to send a media access control layer control element to a user terminal in a discontinuous reception active state at the beginning of multiple idle periods to ensure that the user terminal correctly enters the non-continuous reception state. Continuously receive the sleep state.

FIG. 3 is a flowchart of another method for reducing interference provided by an embodiment of the disclosure. As shown in Fig. 3, the method is a specific alternative implementation based on the method shown in Fig. 1. Specifically, the method not only includes step S1a, step S1b, and step S2, but also includes step S5. Only step S5 will be described in detail below.

Step S5: Configure corresponding request configuration information for each user terminal, so that each user terminal sends an uplink scheduling request (Scheduling Request, SR) during at least part of the non-idle period according to the requested configuration information, and when idle No uplink scheduling request is sent during the time period.

In some embodiments, when the uplink scheduling request configuration is not performed, based on the discontinuous reception configuration of the user terminal, when the user terminal needs to independently send the uplink scheduling request, even if the user terminal is in the discontinuous reception dormant state at this time , It will also automatically enter the discontinuous reception active state, so as to perform other conventional business processes such as cell reference signal measurement. Therefore, advance request configuration is performed for the transmission of the uplink scheduling request, so as to avoid the terminal from leaving the measurement configuration for autonomous activation during the idle period.

The request configuration information includes: the request period and the second bias coefficient. The second offset coefficient is used to instruct the user terminal to send an uplink scheduling request in a specific subframe. Generally speaking, for the consideration of synchronization, the request period is set corresponding to the discontinuous reception period, and the length of the subframe in the request period corresponds to the length of the subframe in the discontinuous reception period.

The embodiments of the present disclosure provide a method for reducing interference, which can be used to configure the user terminal uplink scheduling request sending process in advance, so as to prevent the user terminal from erroneous activation during the idle period.

FIG. 4 is a flowchart of still another method for reducing interference provided by an embodiment of the present disclosure. As shown in Figure 4, this method is an optional implementation based on the method shown in Figure 1. The method not only includes step S1a, step S1b, and step S2, but also includes step S01 before step S1a and step S1b. Only step S01 will be described below.

Step S01: Determine the idle period according to the synchronization signal of the second access network device and the transmission period of the physical broadcast channel (Physical Broadcast Channel, PBCH) block (Synchronization Signal and PBCH Block, SSB).

The second access network device is applicable to a 5G radio access network (also known as 5G New Radio (5G NR)), for example, the second access network device is a 5G base station.

In step S01, the determined idle period completely covers the transmission period.

In some embodiments, in a 5G radio access network, the synchronization signal and the PBCH block include primary synchronization signals (PSS), secondary synchronization signals (SSS), and physical broadcast channels (Physical Broadcast Channel, PBCH), the physical broadcast channel is mainly used to instruct the user terminal to receive the basic information of the access network, including the remaining minimum system information (RMSI).

Therefore, in some embodiments, the first access network device may also determine the idle period according to the synchronization signal of the second access network device and the transmission period of the PBCH block and the remaining minimum system information. The idle subframe is determined according to the synchronization signal of the second access network device and the PBCH block and the transmission subframe of the remaining minimum system information.

The embodiments of the present disclosure provide a method for reducing interference, which can be used to determine the idle period of the first access network device according to the sending period of the corresponding information of the second access network device, effectively reducing the number of cells when the spectrum is shared by 4G and 5G networks. Interference caused by the reference signal.

FIG. 5 is a flowchart of still another method for reducing interference provided by an embodiment of the disclosure. As shown in Figure 5, the method is applied to the user terminal side, and the method includes:

Step S6: Receive measurement configuration information issued by the device side of the first access network.

Referring to the interference reduction method shown in Figure 1, the first access network device is configured with a cell reference signal transmission cycle. The signal transmission cycle includes an idle period and a non-idle period; where the first access network device is in the idle period The cell reference signal is not sent in at least part of the channels, and the first access network device sends the cell reference signal in all channels during the non-idle period.

Step S7: In response to the measurement configuration information, the cell reference signal measurement is performed at least part of the time in the non-idle period, and the cell reference signal measurement is not performed during the idle period.

FIG. 6 is a flowchart of still another method for reducing interference provided by an embodiment of the disclosure. As shown in Figure 6, this method is an optional implementation based on the method shown in Figure 5. The method not only includes step S6 and step S7, but also includes step S8 and step S9. Only step S8 and step S9 will be described below.

Step S8: Receive the requested configuration information issued by the first access network device side.

Step S9: In response to the request for configuration information, the uplink scheduling request is sent at least part of the time in the non-idle period, and the uplink scheduling request is not sent during the idle period.

Fig. 7 is a signaling diagram of yet another method for reducing interference provided by an embodiment of the disclosure. As shown in Figure 7, it includes:

BZ101. The first access network device determines the idle period according to the synchronization signal of the second access network device and the transmission period of the PBCH block.

BZ102, the first access network device determines the intelligent scheduling mechanism.

The intelligent scheduling mechanism defines the signal transmission period to include: idle period and non-idle period; the first access network device determines the idle period according to the synchronization signal of the second access network device and the transmission period of the PBCH block, and the idle period completely covers the transmission period. Time period; in the idle period, the first access network device does not send cell reference signals in at least some channels, and in the non-idle period, the first access network device sends cell reference signals in all channels.

BZ2, the first access network device configures corresponding measurement configuration information for each user terminal among all the subordinate users.

The measurement configuration information includes discontinuous reception configuration information, and the discontinuous reception configuration information includes a signal transmission period of the first access network device, and the signal transmission period includes an idle period and a non-idle period.

BZ3. In response to the measurement configuration information, each user terminal performs cell reference signal measurement during at least part of the non-idle period, and does not perform cell reference signal measurement during the idle period.

BZ4. The first access network device configures corresponding request configuration information for each user terminal under it.

BZ5. In response to requesting configuration information, each user terminal sends an uplink scheduling request during at least part of the non-idle period, and does not send an uplink scheduling request during the idle period.

BZ601: When the first access network device switches from a non-idle period to an idle period, it detects whether there is a user terminal in a discontinuous reception active state. (Not shown in the picture)

BZ6. When there is a user terminal in the discontinuous reception active state (not shown in the figure), the media access control layer control element is sent to the user terminal in the discontinuous reception active state.

BZ7. In response to a media access control layer control element (not shown in the figure), the user terminal in the discontinuous reception active state switches to the discontinuous reception sleep state.

The following describes the steps and processes of the interference reduction method in the present disclosure in combination with actual applications, focusing on the 4G and 5G network spectrum sharing scenarios, where the first access network device corresponds to 4G access network equipment, and the second access network device corresponds to 5G access网设备。 Net equipment.

First, the first access network device determines the idle period according to the synchronization signal of the second access network device and the transmission period of the PBCH block and the remaining minimum system information, and uses this to configure the signal transmission period of its own cell reference signal. The signal transmission period includes : Idle period and non-idle period. During the idle period, the first access network device does not send cell reference signals on at least some channels, and during the non-idle period, the first access network device sends cell reference signals on all channels. For example, the first access network device configures the signal transmission period of its own cell reference signal to 20ms according to the synchronization signal of the second access network device and the transmission period of the PBCH block and the remaining minimum system information. Among them, subframe 0 and subframe 1 corresponds to the idle period, and the other 18 subframes correspond to the non-idle period. Therefore, using the silent technology, only the cell reference signal of the broadcast channel is reserved during the idle period, and the cell reference signal is normally sent during the non-idle period.

After that, corresponding to the signal transmission cycle, configure the corresponding discontinuous reception configuration information for each user terminal under it, so that each user terminal is in the discontinuous reception sleep state during the idle period (the attached sleep state identifier, such as: "DRX Sleep "And "Opportunity for DRX", etc.), in the non-idle period in the discontinuous reception active state (with the active flag, such as: "DRX Active" and "On Duration" etc.), and in the non-idle period according to the The setting coefficient is used to measure the cell reference signal in a specific subframe, thereby achieving that each user terminal measures the cell reference signal at least part of the time in the non-idle period, and does not measure the cell reference signal during the idle period. Corresponding to the signal transmission period (20ms), the first access network device configures the discontinuous reception period of each user terminal under it to 20ms; corresponding to subframe 0 and subframe 1, while avoiding configuring the first offset coefficient as " 0" and "1"; the first access network device configures the first offset coefficient according to the number of user terminals on the live network, so that the cell reference signal measurement services of multiple user terminals evenly fall in subframe 0 and subframe 1 outside the other 18 subframes.

Corresponding to the signal transmission cycle, configure corresponding request configuration information for each user terminal under it, so that each user terminal sends uplink scheduling requests during at least part of the non-idle period according to the requested configuration information, and does not send it during the idle period The uplink scheduling request ensures that each user terminal maintains a discontinuous reception dormant state during the idle period to avoid false activation. The uplink scheduling request is sent in a specific subframe according to the second offset coefficient, and the configuration process of the second offset coefficient can refer to the first offset coefficient.

So far, the first access network device has completed the terminal configuration for each user terminal under its control.

In addition, to ensure that all user terminals under its control are in the discontinuous reception dormant state at the beginning of the next signal transmission period, the first access network device detects whether there are user terminals in the discontinuous reception active state when switching from a non-idle period to an idle period ; When there is a user terminal in the discontinuous reception active state, the media access control layer control element is sent to the user terminal in the discontinuous reception active state to control the user terminal in the discontinuous reception active state to switch to the discontinuous reception dormancy state.

The embodiment of the present disclosure also provides an access network device, including:

One or more processors; a storage device configured to store one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned Figures 1 to 1 to Steps in the interference reduction method provided by any of the embodiments in FIG. 4.

The embodiment of the present disclosure also provides a communication terminal, including: one or more processors; a storage device configured to store one or more programs; when the one or more programs are executed by the one or more processors, The one or more processors are enabled to implement the steps of the interference reduction method in the embodiment shown in FIG. 5 or FIG. 6 above.

The embodiments of the present disclosure also provide a computer-readable medium on which a computer program is stored, and when the program is executed by a processor, the steps in the interference reduction method provided in any of the above-mentioned embodiments are implemented.

A person of ordinary skill in the art can understand that all or some of the steps in the method disclosed above, and the functional modules/units in the device can be implemented as software, firmware, hardware, and appropriate combinations thereof. In the hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may consist of multiple The physical components are executed cooperatively. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, and the computer-readable medium may include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile data implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Sexual, removable and non-removable media. Computer storage media include but are not limited to Random Access Memory (RAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM) , Flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (Digital Versatile Disc, DVD) or other optical disc storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic A storage device, or any other medium that can be used to store desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media usually contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media. .

Example embodiments have been disclosed herein, and although specific terms are adopted, they are used and should only be interpreted as general descriptive meanings, and are not used for the purpose of limitation.

Claims

A method for reducing interference, applied to the device side of the first access network, includes:

In the case of an idle period in the signal transmission period, transmitting the cell reference signal with a transmission power less than a preset power in at least part of the channels;

In the case of a non-idle period in the signal transmission period, transmitting the cell reference signal with a transmission power greater than or equal to the preset power in all channels;

Configure the corresponding measurement configuration information for each user terminal in all the user terminals under it, so that each user terminal performs the cell reference signal measurement at least part of the time in the non-idle period according to the measurement configuration information. Measurement, and the cell reference signal measurement is not performed during the idle period.
The method according to claim 1, wherein the measurement configuration information comprises: discontinuous reception configuration information.
The method according to claim 2, further comprising:

When switching from the non-idle period to the idle period, if there is a user terminal in the discontinuous reception active state, send the media access control layer control element to the user terminal in the discontinuous reception active state To control the user terminal in the discontinuous reception active state to switch to the discontinuous reception sleep state.
The method according to claim 1, further comprising:

Configure corresponding request configuration information for each user terminal, so that each user terminal sends an uplink scheduling request during at least part of the non-idle period according to the requested configuration information, and does not send it during the idle period The uplink scheduling request.
The method according to claim 1, wherein in the case of an idle period in a signal transmission cycle, transmitting the cell reference signal with a transmission power less than a preset power in at least part of the channel comprises: during the idle period, The broadcast channel transmits the cell reference signal with a transmission power less than the preset power, and does not transmit the cell reference signal on other channels except the broadcast channel.
The method according to claim 1, before the step of transmitting a cell reference signal with a transmission power less than a preset power in at least part of the channel in the case of being in an idle period in a signal transmission period, and before the step of In the case of a non-idle period in the signal transmission period, before the step of transmitting the cell reference signal with a transmission power greater than or equal to the preset power in all channels, the method further includes:

The idle period is determined according to the synchronization signal of the second access network device and the transmission period of the physical broadcast channel PBCH block, and the idle period completely covers the transmission period.
A method for reducing interference, applied to the user terminal side, including:

Receiving measurement configuration information issued by the first access network device side, where the measurement configuration information includes: a signal transmission period of the first access network device, and the signal transmission period includes an idle period and a non-idle period;

In response to the measurement configuration information, the cell reference signal measurement is performed at least part of the time in the non-idle period, and the cell reference signal measurement is not performed during the idle period.
The method according to claim 7, further comprising:

Receiving the requested configuration information issued by the device side of the first access network;

In response to the request configuration information, an uplink scheduling request is sent during at least part of the non-idle period, and the uplink scheduling request is not sent during the idle period.
An access network equipment, including:

At least one processor;

The storage device is set to store at least one program;

When the at least one program is executed by the at least one processor, the at least one processor implements the interference reduction method according to any one of claims 1-6.
A communication terminal, including:

At least one processor;

The storage device is set to store at least one program;

When the at least one program is executed by the at least one processor, the at least one processor implements the interference reduction method as claimed in claim 7 or 8.
A computer-readable medium storing a computer program, and when the computer program is executed by a processor, the method for reducing interference according to any one of claims 1-8 is implemented.