WO2018126792A1

WO2018126792A1 - Interference measurement method and device and timing offset measurement method and storage medium

Info

Publication number: WO2018126792A1
Application number: PCT/CN2017/110753
Authority: WO
Inventors: 徐汉青; 赵亚军; 杨玲; 李新彩
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-01-09
Filing date: 2017-11-13
Publication date: 2018-07-12
Also published as: CN108289311B; CN108289311A

Abstract

Embodiments of the present invention disclose an interference measurement method and device and a timing offset measurement method. The method comprises: a first communication device obtaining first transmission configuration information, in which if a second communication device is a first base station, the first communication device is a second base station or user equipment (UE) connected in a cell formed by the second base station, and if the second communication device is first UE, the first communication device is second UE or a base station adjacent to a base station connected to the first UE; perform, according to the first transmission configuration information, measurement on a first reference signal to form a first measurement result, the first measurement result being for cross-link interference coordination. The embodiments of the present invention further provide a computer storage medium.

Description

Interference measurement method and device, timing deviation measurement method and storage medium

The present application is filed on the basis of the Chinese Patent Application No. PCT Application No.

Technical field

The present invention relates to the field of wireless communications, and in particular, to an interference measurement method and apparatus, a timing offset measurement method, and a storage medium.

Background technique

The Long Term Evolution (LTE) system supports the implementation of Frequency Division Duplex (FDD) operations on a pair of spectrums (downstream operation on one carrier and uplink operation on another carrier). It also supports the implementation of Time Division Duplex (TDD) operations on an unpaired carrier. The existing TDD operation mode can only apply a limited number of uplink and downlink subframe allocation configurations (corresponding to configuration 0 to configuration 6), and the same configuration is adopted between adjacent cells, that is, the same transmission direction is used. The enhanced interference mitigation and traffic adaptation (eIMTA) can configure the uplink and downlink directions of the LTE system in a semi-static manner (above 10ms), and different TDD uplink and downlink links can be used in the adjacent areas. The configuration of frame allocation, but these configurations are still limited to the above limited centralized configuration.

In order to meet the needs of rapid service adaptation and further improve the efficiency of spectrum usage, future wireless communication systems (such as 5G/New Radio systems) should support dynamic TDD operations. Dynamic TDD operations can be performed on unpaired spectrum or The uplink or downlink transmission direction is dynamically or semi-dynamically changed on the uplink carrier or the downlink carrier in the paired spectrum. Compared to eIMTA, the dynamic TDD operation here can support sub-frame level, or slot level, and even more dynamic transmission direction changes. And Moreover, the dynamic TDD does not limit the configuration mode in which only a limited number of uplink and downlink subframe allocations are used, and the uplink and downlink transmissions can be scheduled more flexibly. The dynamic TDD here can also be referred to as flexible duplexing or duplexing flexibility.

However, in the application or simulation process, there is a serious problem of cross-link interference.

Summary of the invention

In view of this, embodiments of the present invention are expected to provide an interference measurement method and apparatus and a timing offset measurement method, and it is desirable to reduce interference and improve communication quality.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A first aspect of the embodiments of the present invention provides an interference measurement method, including:

The first communication device acquires first sending configuration information, where the first sending configuration information is configuration information that the second communications device sends the first reference signal; if the second communications device is the first base station, the first communications The device is a second base station or a user equipment UE connected to a cell formed by the second base station; if the second communication device is a first UE, the first communication device is a second UE or the first a neighboring base station of a base station to which the UE is connected;

And measuring the first reference signal according to the first sending configuration information to form a first measurement result.

A second aspect of the embodiments of the present invention provides an interference measurement method, including:

Obtaining, by the second communications device, first sending configuration information of the first reference signal; wherein, if the second communications device is the first base station, the first communications device is a second base station or a cell connected to the second base station If the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

And transmitting, by the first sending configuration information, the first reference signal, where the first reference signal is used by the first communications device to form a first measurement result.

A third aspect of the embodiments of the present invention provides an interference measurement apparatus, which is applied to a first communication device, and includes:

The first receiving unit is configured to receive the first sending configuration information, where the first sending configuration information is configuration information that the second communications device sends the first reference signal; if the second communications device is the first base station, The first communication device is the second base station or the user equipment UE connected to the cell formed by the second base station; if the second communication device is the first UE, the first communication device is the second UE or the a neighboring base station of a base station to which the first UE is connected;

The first measurement unit is configured to perform measurement on the first reference signal to form a first measurement result according to the first transmission configuration information.

A fourth aspect of the embodiments of the present invention provides an interference measurement apparatus, which is applied to a second communication device, and includes:

a second forming unit, configured to acquire first sending configuration information of the first reference signal, where the first communications device is the second base station or connected to the second base station if the second communications device is the first base station a user equipment UE in the formed cell; if the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

The second sending unit is further configured to send the first reference signal according to the first sending configuration information, where the first reference signal is used by the first communications device to form a first measurement result.

A fifth aspect of the embodiments of the present invention provides a timing deviation measurement method, where a base station configures configuration information of a user terminal UE to perform timing offset measurement across links.

Sending the configuration information to the UE, where the configuration information is used to trigger the UE to perform timing offset measurement across links;

Receiving a measurement result of the timing deviation measurement reported by the UE.

A sixth aspect of the embodiments of the present invention provides a method for measuring a timing offset, including:

The user terminal UE receives configuration information sent by the base station;

Performing a measurement of the timing deviation across the link according to the configuration information, and obtaining a measurement result;

The measurement result is reported to the base station.

The UE reports the timing deviation measurement result of the cross-link cross link to the base station.

A seventh aspect of the embodiments of the present invention provides a method for measuring a timing offset, including:

The base station configures configuration information for performing timing offset measurement across links.

The base station performs timing offset measurement across the link based on the configuration information.

A sixth aspect of the embodiments of the present invention provides a communications device, including: a communications interface, a memory, and a processor;

The communication interface is configured to send and receive information;

The memory is configured to store information;

The processor is respectively connected to the communication interface and the memory, configured to implement an interference measurement method provided by one or more of the foregoing solutions by executing computer executable code stored on the memory, or A timing deviation measurement method provided by one or more technical solutions.

A seventh aspect of the embodiments of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, where the computer executable instructions are used to perform the interference measurement method provided by one or more of the foregoing solutions, or The timing deviation measurement method provided by one or more of the foregoing technical solutions is performed.

In the solution of the embodiment of the present invention, the configuration information of the cross reference signal is transmitted between the communication devices of the two cross-links, and the communication device that performs the measurement performs measurement according to the received transmission configuration information, thereby obtaining interference across the link. Measurements facilitate subsequent interference coordination across links; thereby reducing cross-link interference and improving communication quality.

DRAWINGS

1 is a schematic flowchart of a first interference measurement method according to an embodiment of the present invention;

2 is a schematic flowchart of a second interference measurement method according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart diagram of a third interference measurement method according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a first interference measuring apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a first interference measuring apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of interference of a first type of cross-link interference according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of interference of a second cross-link interference according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of interference of a third cross-link interference according to an embodiment of the present invention.

detailed description

The present invention is described in detail with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , this embodiment provides an interference measurement method, including:

Step S110: The first communication device acquires first sending configuration information, where the first sending configuration information is configuration information that the second communications device sends the first reference signal; if the second communications device is the first base station, The first communication device is the second base station or the user equipment UE connected to the cell formed by the second base station; if the second communication device is the first UE, the first communication device is the second UE or the a neighboring base station of a base station to which the first UE is connected;

Step S120: Perform measurement on the first reference signal according to the first sending configuration information to form a first measurement result. In this embodiment, the first measurement result may be used for interference coordination across links.

The interference measurement method in this embodiment may be an interference measurement method applied to various first communication devices such as a base station or a UE.

The first communication device and the second communication device herein are both communication devices of a wireless communication network. In this embodiment, the base station may be an evolved base station (eNB), a next generation base station (gNB), a home base station, a small cell base station, or various access points (Access). Point, AP) and other communication devices that can be accessed by other devices.

The UE can be generally a mobile terminal, a tablet or a wearable device, or Networked terminal, or vehicle terminal. The Internet of Things terminal may include: various smart homes, for example, smart water meters, smart refrigerators. The vehicle-mounted terminal may include: a communication terminal located on various private cars or public transportation vehicles.

In the embodiment, the second communication device acquires the first sending configuration information before sending the first reference signal, so that the first communications device can obtain the first in step S110. Send configuration information. According to the first sending configuration information, the first communications device can know on which time-frequency resources the first reference signal is sent, and on which time-frequency resources it is possible to receive the first reference signal. When the first communication device and the second communication device are both base stations, the first communication device may receive the first configuration information from a base station that transmits the first reference signal. When the first communications device is a base station and the second communications device is a UE, the first sending configuration information of the first reference signal of the UE is configured by the base station for the UE, and the first configuration is configured. The base station of the information may be a base station of a cell in which the UE is located, or may be a base station of the first communication device. If the first sending configuration information is configured by the first communications device, the obtaining includes reading the first sending configuration information or configuring the first sending configuration information, and if configured by other base stations, may include other base stations. Receiving the first configuration information.

The first configuration information may include: a sending parameter of the first reference signal; and the sending parameter may include one or more of the following:

Sending a resource location of the first reference signal, where the resource location may include: a time domain resource location, a frequency domain resource location;

a sequence of the first reference signal transmitted;

Sending a beam parameter of the first reference signal, where the beam parameter may include at least one of a beam index, a beam direction, and a beam width.

In this embodiment, the first reference signal may be a Downlink Demodulation Reference Signal (DL DMRS), a Channel State Information Reference Signal (CSI-RS), and a downlink. Reference signal (Down Link Reference Signal, DL RS).

In this embodiment, the first communication device and the second communication device may both be base stations. Through the foregoing steps S110 to S120, the mutual interference status between the base stations can be known. For example, the downlink of the base station A transmits uplink interference to the base station B.

The first communication device and the second communication device may both be UEs, so that the interference between the UEs may be known by the execution of the foregoing steps S110 to S120, for example, the uplink transmission of the UE1 interferes with the downlink reception of the UE2. .

The first communication device may also be a base station 1, and the second communication device is a UE connected to the base station 2. In short, the UE is a UE that is not currently connected to the base station 1.

In this embodiment, the first communication device may be an interference device, and the second communication device may be a victim device; the interference device is a device that generates an interference signal, and is a generation device of an interference source. The victim device is a device that receives interference from other devices. Of course, the first communication device may also be a victim device, and the second communication device is an interference device.

In this embodiment, if the first communication device and the second communication device are both base stations, the first communication device returns a private interface or an air interface between the link or other base stations through the X2 interface (Over The Air) , OTA) signaling, interacting with the first transmission configuration information. If the first communication device and the second communication device are both UEs, the first transmission configuration information may be exchanged between the UEs through an interface such as a Device to Device (D2D).

In the embodiment, the first communication device performs measurement of the first reference signal according to the first sending configuration information, thereby obtaining a cross-link interference condition of the second communications device to the first communications device.

In this embodiment, the first reference signal may be a reference signal that is transmitted periodically, for example, a periodically transmitted signal. The second reference signal may also be a trigger transmit signal. Here, the trigger transmission signal is a signal that is transmitted when the preset trigger condition is satisfied. For example, the signal transmission parameter of the second communication device is changed. For example, if the transmission power is increased, it may cause a neighboring base station or The UE in the neighboring base station receives the interference. For another example, the direction of signal generation of the second communication device changes. These are trigger events that satisfy the preset trigger condition. The triggering event in this embodiment may further include: the first communication device or the second communication device detects that the quality of the signal transmission and reception is degraded, and the interference is enhanced. In order to determine the interference source or the interference strength, it is considered that the preset trigger is currently satisfied. a condition that triggers the transmission of the first reference signal. In the embodiment, the first communications device may send a trigger signal to the second communications device when the triggering event that meets the preset triggering condition is detected, triggering the second communications device to form the first Send configuration information as soon as it is sent.

In this embodiment, the first reference signal may carry the sender identifier information, where the sender identifier information may include the device identifier of the second communications device or the cell identifier of the cell formed by the second communications device. The second reference signal may further carry the carrier identification information, where the carrier identification information may be used to indicate a carrier that sends the first reference signal. When the first reference signal is not transmitted using an omnidirectional antenna or an omnidirectional port, but a directional antenna or a directional port beam is utilized, the carrier identification may include the beam identification.

In the embodiment, the step S120 measures the first reference signal, and may perform radio resource management (RRM) measurement, channel state information (CSI) measurement, and channel quality indication ( Channel Quality Index (CQI) A measurement of the degree of influence on the first communication device by various first reference signals that can be characterized by the first communication signal transmitted by the second communication device, such as measurement, interference measurement, or path loss measurement.

At the same time, the method for detecting interference in the embodiment can detect cross-link interference measurement, and the measurement result can be used for interference coordination across links, and the interference is reduced after coordination, thereby improving communication quality and thus solving cross-chain. Communication interference caused by the road.

In some embodiments, as shown in FIG. 2, the method further includes:

Step S111: Acquire first measurement configuration information before performing measurement on the first reference signal.

Step S112: Send the first measurement configuration information to the third communication device, or, according to The first measurement configuration information is used to perform resource scheduling, where the first measurement configuration information includes at least: first silent configuration information, where the first silent configuration information is used to indicate that the third communication device is prohibited from transmitting a predetermined time frequency of the signal. The third communications device includes at least one of: the second communications device, a neighboring device of the first communications device, and a communications device to which the first communications device is connected.

In the embodiment, the first measurement configuration information is obtained, where the first measurement configuration information may be pre-stored in the first communication device, and the first measurement configuration information is that the first communication device is The first measurement configuration information generated by determining whether to measure or how to perform measurement on the first reference signal. In the embodiment, the first measurement configuration information may be completely independent of the first discovery configuration information, or may be determined according to the first transmission configuration information. Optionally, the first measurement configuration information has a correlation with the first transmission configuration information, and the predetermined time-frequency resource that the first measurement configuration information refers to is a transmission time frequency of the first reference signal. One or more of the resources.

In this embodiment, the first communications device may further perform resource scheduling according to the first measurement information. For example, in the predetermined time-frequency resource, a time-frequency resource that the UE or other communication device sends a signal to itself is not allocated, for example, the predetermined time-frequency resource is set to prohibit scheduling or invalid resources, thereby achieving the effect of prohibiting scheduling.

In some embodiments, the first measurement configuration information further includes at least one of the following:

Measuring object information for indicating a measured channel, a cell, and/or the second communication device;

Measuring subframe information, used to indicate a measurement subframe;

Measuring time slot information for indicating a measurement time slot;

Measuring period information for indicating a measurement period;

Measuring offset information for indicating a measurement time offset and/or a frequency offset;

Measuring duration information for indicating the duration of a measurement;

The measurement pattern information is used to indicate the time and/or frequency resource at which the measurement is taken.

The channel may indicate a transmitting device to a receiving device. The cell is a transmitting cell of the first reference signal. The measurement object information may further indicate a transmitting device of the first reference signal

In this case, according to the first measurement information, the first communication device knows when to listen to the first reference signal on which spectrum, and sends the first measurement information to other communication devices, then the communication devices can be The first measurement configuration information performs a silent operation, where the silent operation is a device that does not send a signal to the first communication device.

The first silent configuration information includes at least one of the following:

Silent subframe information, used to indicate a silent subframe in which a signal is prohibited from being transmitted;

Silent time slot information, used to indicate a silent time slot for which transmission of a signal is prohibited;

Silent time-frequency pattern information for indicating time-frequency resources for which transmission of signals is prohibited;

Quiet port information, used to indicate the port that is prohibited from sending signals;

Transmit power information indicating that the transmit power of the transmitted signal is zero.

The first communication device may monitor the first reference signal in some subframes or in certain time slots, that is, measure the first reference signal.

In some embodiments, the first sending configuration information includes at least one of the following:

Transmitting subframe information, configured to indicate a sending subframe of the first reference signal;

Transmitting time slot information, used to indicate a sending time slot of the first reference signal;

Transmitting period information, configured to indicate a sending period of the first reference signal;

Transmitting offset information, used to indicate an offset of the first reference signal in a time domain and/or a frequency domain;

Transmitting port information, indicating a port of the first reference signal;

Sending pattern information, indicating time-frequency resources for transmitting the first reference signal;

The second silent configuration information is used to indicate a predetermined time-frequency resource that the third communications device sends a signal, and/or a basis for generating the first silent configuration information for the first communications device.

In this embodiment, the silent subframe is one or more of the transmitting subframes. Silence The time slot can be one or more of the transmission time slots. Optionally, the silent subframe is a subframe in which the first communications device measures the first reference signal, and the silent slot is a slot in which the first communications device measures the first reference signal. .

In some embodiments, the method further includes:

Performing interference coordination across links according to the first measurement result;

or,

Returning the first measurement result to the second communication device, where the first measurement result is used by the second communication device to perform interference coordination of the cross-link.

In the embodiment, there are various methods for interference coordination of the cross-link:

The first:

The transmission power of the interference signal is reduced under the condition that the target receiving end can be received;

Second:

The first communication device receiving operation and the transmitting operation of the second communication device are staggered in the time domain, or the transmitting operation of the first communication device and the receiving operation of the second communication device are staggered in the time domain.

The third type:

At least one of the first communication device and/or the second communication device reduces the frequency of use of time-frequency resources that cause interference, thereby reducing mutual interference as a whole.

The fourth type: adjust the transmission parameters to achieve interference coordination. The transmission parameters may include various parameters such as the transmission angle of the transmitting antenna and the hanging height, thereby reducing mutual interference.

The fifth one:

Re-adjust the scheduling of the corresponding time-frequency resources. For example, the cell is divided into a central area and a peripheral area around the central area, and the time-frequency resources with interference between the two base stations are used from the user equipment scheduled to the peripheral area, and are changed to be used by the user equipment scheduled for the central area.

In short, there are many ways to perform cross-link interference coordination, and are not limited to any of the above. However, before performing interference coordination, it is necessary to determine the measurement status based on the first measurement result.

In some embodiments, the first measurement result is interference measurement from the second communication device to a first channel of the first communication device; the second communication device from the first communication device is a second channel ;

In this embodiment, the method further includes:

Based on the reciprocity of the channel and the first measurement result, a second measurement result of the second channel is obtained.

The transmission characteristics of the transmission channels of the first communication device and the second communication device may be consistent. Then, according to the channel reciprocity, the second measurement result of the second channel may be obtained based on the measurement of the second channel.

Facilitating at least one of the first communication device and the second communication device, or a management device connected to the first communication device and the second communication device, performing cross-chain according to the first measurement result and/or the second measurement result Road interference coordination.

In some cases, there is no reciprocity between the channels. In this case, the second communication device needs to receive the second reference signal sent by the first communication device to obtain the second measurement result. For example, the method is based on the step S110 to the step S120, the method further includes: the first communications device sends second sending configuration information to the second communications device; and based on the second sending configuration information Transmitting a second reference signal, wherein the second reference signal is used to form a second measurement result from the first communication device to the second communication device.

In this way, the first measurement result and the second measurement result can be obtained, and the cross-link interference of the first channel and the second channel is simultaneously avoided according to the first measurement result and the second measurement result.

In some embodiments, the step S120 may include:

When performing statistical cross-link interference measurement, measuring the first reference signal to obtain a wireless signal management RRM measurement result and/or channel measurement result and/or interference condition information;

When the instantaneous cross-link interference measurement is performed, the first reference signal is measured to obtain an interference source and/or interference direction and/or channel state information result and/or interference condition information.

In the embodiment, the statistical cross-link interference measurement is performed by performing multiple cross-link interference measurement within a predetermined time period or a corresponding frequency band, and then performing statistics on multiple cross-link interference measurement measurements to obtain statistics. The result of the measurement, for example, calculates the mean of multiple cross-link interference measurements as the final measurement of the cross-link interference measurement.

The instantaneous cross-link interference measurement is: performing a measurement within a short duration or within a frequency band, and the result of the measurement is directly used as a measurement result of the final cross-link interference measurement.

In this embodiment, the time-frequency resource used by the first reference signal is a semi-static scheduling resource, and when performing measurement, it is required to obtain a radio signal management RRM measurement result and/or a channel measurement result and/or interference condition information. If the time-frequency resource used by the first reference signal is a dynamic scheduling resource, it is necessary to determine the interference source and/or the interference direction when performing the measurement.

The second communication device may be configured to transmit by using an omnidirectional antenna or a directional antenna beam when transmitting the first reference signal.

In this embodiment, the step S120 may include:

And if the first reference signal is sent by using a beam, identifying the beam to obtain beam identification information; wherein the beam identification information is a component of the first measurement result.

In this case, the beam identification information is used as a component of the first measurement result, so that it can be known according to the first measurement result whether the corresponding beam causes cross-link interference.

In this embodiment, the beam identification information may be carried on the beam, and in the embodiment, the identification beam identification information may include:

Demodulating the information carried on the beam to obtain the beam identification information. In specific implementation, the beam configuration may be sent according to the beam configuration time and/or the transmission angle. Information, the beam identification information is obtained.

In some embodiments, the first measurement result is used to compare with a comparison threshold to form a comparison result; the comparison result is used to determine whether the cross-link interference and/or the cross-link interference exists degree.

A comparison threshold is also set in this embodiment. In the embodiment, the comparison threshold may be one or more. For example, the comparison threshold is one, and the signal strength measured by the first measurement result is compared with the comparison threshold. If the comparison threshold is greater than the comparison threshold, cross-link interference may be considered. Comparing the thresholds, it can be considered that there is no cross-link interference.

In the embodiment, the comparison threshold includes a first threshold and a second threshold. The first threshold is not equal to the second threshold. The first threshold may be used as a threshold for determining whether there is cross-link interference, and the second threshold may be used as a threshold for determining the severity of cross-link interference. When the judgment is performed, the first measurement result and/or the second measurement result may be compared with the first threshold and the second threshold to quickly obtain whether there is cross-link interference and severity, or may be first and first. Threshold comparison, according to the comparison result with the first threshold, it is determined that there is cross-link interference, and then with the second threshold, the degree of interference across the link is obtained.

In some embodiments, if the first communication device is an interference device, the second communication device is a victim device; if the first communication device is a victim device, the first communication device is Interfering with the device.

In summary, the device that sends the first reference signal in this embodiment may be an interference device or a victim device, and the second communication device is a victim device or an interference device that measures the first reference signal.

As shown in FIG. 3, this embodiment provides an interference measurement method, including:

Step S210: The second communication device acquires first sending configuration information of the first reference signal. If the second communications device is the first base station, the first communications device is the second base station or is connected to the second base station. a user equipment UE in the formed cell; if the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

Step S220: Send the first reference signal according to the first sending configuration information, where the first reference signal is used by the first communications device to form a first measurement result.

The method in this embodiment is applied to an interference measurement method in a transmitting end of the first reference signal. In this embodiment, the second communications device obtains the first sending configuration information before sending the first reference signal. In some embodiments, the second communications device is a base station, and the second The communication device also sends the first transmission configuration information, informing the first communication device to prepare to receive the first reference signal, and measuring the first reference signal, thereby performing cross-link interference measurement to form the first measurement result, It is convenient to perform interference coordination according to the first measurement result, reduce cross-link interference, and improve communication quality. In other embodiments, the second communication device is a UE, and the first communication device is a base station, and the first communication device at this time may be the first configured base station that sends configuration information, and does not need the UE to notify the first As soon as the configuration information is sent, the first communication device may receive from the base station configuring the first transmission configuration information for the UE, or the UE may also send the first transmission configuration information to the first communication device.

The first measurement result can be used for interference coordination across links.

In still other embodiments, the method further includes:

Receiving, by the second communication device, first measurement configuration information; the first measurement configuration information at least: first silence configuration information;

And the operation of the neighboring device of the first communications device to transmit a signal at a predetermined time-frequency resource is masked according to the first silent configuration information.

The first communication device may form the first measurement configuration information according to the first sending configuration information. Of course, the forming of the first measurement configuration information may also be completely independent of the first sending configuration information. In this embodiment, the second communication device receives the first transmission configuration information, and performs the silence from the left according to the content in the first measurement configuration information, where the silent operation is shielding the predetermined time-frequency resource. The operation of sending a signal. In the embodiment, the predetermined time-frequency resource is a time-frequency resource that the first communications device measures the first reference signal.

For the related description of the first measurement configuration information in this embodiment, refer to the foregoing embodiment, which is not repeated here.

Transmitting port information, indicating a port of the first reference signal;

In the embodiment, the second silent configuration information may be used as a basis for forming the first silent configuration information, and the step of forming the first measurement configuration information by the first communication device is simplified.

In some embodiments, the method further includes:

Receiving the first measurement result;

According to the first measurement result, interference coordination across links is performed.

In the embodiment, the second communication device further receives the first measurement result, and performs interference coordination across the link according to the first measurement result.

In still other embodiments, the first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

The method further includes:

A second measurement result of the second channel from the first communication device to the second communication device is obtained based on channel reciprocity and the first measurement result.

In still other embodiments, the method can include:

Receiving second sending configuration information sent by the first communications device;

And measuring the second reference signal according to the second sending configuration information.

In combination with the foregoing embodiment, the second communications device may be specifically configured to perform interference coordination across links in combination with the first measurement result and the second measurement result.

In this embodiment, the information content and/or the information format of the second transmission configuration information is similar to the first transmission configuration information. For example, various information such as transmission subframe information, transmission slot information, transmission pattern, and the like may be included. The unification of the information content and format of the first transmission configuration information and the second transmission configuration information facilitates information interaction and demodulation between the respective communication devices.

As shown in FIG. 4, the embodiment provides an interference measurement apparatus, which is applied to a first communication device, and includes:

The first receiving unit 110 is configured to receive first sending configuration information of the first reference signal sent by the second communications device; wherein, if the second communications device is the first base station, the first communications device is the second base station or Connecting to the user equipment UE in the cell formed by the second base station; if the second communication device is the first UE, the first communication device is the second UE or the base station to which the first UE is connected Neighboring base station

The first measurement unit 120 is configured to perform measurement on the first reference signal to form a first measurement result according to the first sending configuration information;

The first measurement result is used for interference coordination across links.

The interference measuring device provided in this embodiment is a measuring device applied to the first communication device. The first receiving unit 110 may correspond to a receiving antenna, where the receiving antenna may be an omnidirectional antenna or a directional antenna.

The first measurement unit 120 may include a processor or processing circuit such as a decoder, which may include a central processing unit, a microprocessor, a digital signal processor, or a programmable array or the like. The processing circuit can include an application specific integrated circuit or the like.

The processor or processing circuit can be configured to implement the measurement function by executing a predetermined instruction to obtain the first measurement result.

The first measurement result in this embodiment can be used to perform cross-link interference coordination.

In some embodiments, the apparatus further includes:

An acquiring unit, configured to acquire first measurement configuration information before performing measurement on the first reference signal;

The first sending unit is configured to send the first measurement configuration information to the third communications device.

In still other embodiments, the apparatus may further include:

a scheduling unit, configured to perform resource scheduling according to the first measurement configuration information, where the first measurement configuration information includes at least: first silent configuration information, where the first silent configuration information is used to indicate that the third communication device is prohibited A predetermined time-frequency resource for transmitting a signal, the third communication device comprising: at least one of the first communication device, a neighboring device of the second communication device, and a communication device connected to the first communication device.

The acquiring unit and the scheduling unit may be corresponding to a processor or a processing circuit, and may generate the first measurement configuration information by itself. The first sending unit may correspond to a transmitting antenna of the first communications device,

In the embodiment, the first measurement configuration information is also obtained. In the embodiment, the related descriptions of the first measurement information, the first silent information, and the first sending configuration information may be referred to the foregoing part, where It will not be repeated.

In still other embodiments, the apparatus further includes:

The first coordination unit is configured to perform interference coordination across links according to the first measurement result.

In still other embodiments, the apparatus further includes:

The first sending unit is configured to return the first measurement result to the second communications device, where the first measurement result is used by the second communications device to perform interference coordination of the cross-link.

The first coordination unit here can also correspond to a processor or a processing circuit through which the interference coordination is performed.

In the present embodiment, the first transmitting unit also corresponds to various types of transmission results such as a transmitting antenna of the first communication device. When the first communication device and the second communication device are both base stations, the communication interface corresponding to the first sending unit and the first receiving unit 110 may also be a wired interface, and the first sending is performed through a wired network. Configuration information and/or the first measurement configuration information and/or the first measurement result and/or the second measurement result. The first receiving unit 110 may further correspond to the processor, and query the first sending configuration information configured by itself.

In still other embodiments, the first measurement result is interference measurement from the second communication device to a first channel of the first communication device; the first measurement unit 120 is further configured to be channel based The reciprocity and the first measurement result result in a second measurement result from the first communication device to the second channel of the second communication device.

In another embodiment, the apparatus further includes:

a first sending unit, configured to send second sending configuration information to the second communications device; and send a second reference signal based on the second sending configuration information, where the second reference signal is used to form from the a second measurement result of the first communication device to the second communication device.

The first sending unit here may be configured to send the second sending configuration information to the second communications device, and the second reference signal to obtain the second measurement result of the second channel.

In other embodiments, the first measurement unit 120 is specifically configured to: when performing statistical cross-link interference measurement, measure the first reference signal, obtain a wireless signal management RRM measurement result, and/or channel measurement result. And/or interference condition information; when performing instantaneous cross-link interference measurement, measuring the first reference signal to obtain an interference source and/or interference direction and/or channel state information result and/or interference condition information.

Optionally, the first measurement unit 120 is configured to: if the first reference signal is sent by using a beam, identify the beam to obtain beam identification information; wherein the beam identification information is the first measurement result made of.

The first measurement result is configured to be compared with a comparison threshold to form a comparison result; The result of the comparison is used to determine whether the cross-link interference and/or the degree of cross-link interference exists.

In addition, if the first communication device is an interference device, the second communication device is a victim device; if the first communication device is a victim device, the first communication device is an interference device.

As shown in FIG. 5, the embodiment provides an interference measurement apparatus, which is applied to a second communication device, and includes:

The second forming unit 210 is configured to form first transmission configuration information of the first reference signal. If the second communication device is the first base station, the first communication device is the second base station or is connected to the first a user equipment UE in a cell formed by the second base station; if the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

The second sending unit 220 is further configured to send the first reference signal according to the first sending configuration information, where the first reference signal is used by the first communications device to form a first measurement result; The first measurement result is used for interference coordination across links.

The second forming unit 210 in this embodiment may correspond to a processor or processing circuit in the second communication device, and a related description of the processor or processing circuit may be referred to the corresponding portion of the foregoing embodiment.

The second transmitting unit 220 may correspond to various communication interfaces, such as a transmitting antenna or the like.

In some embodiments, the apparatus comprises:

a second receiving unit, configured to receive first measurement configuration information that is sent by the second communications device, where the first measurement configuration information includes: at least: first silent configuration information;

And an execution unit, configured to block, according to the first silent configuration information, an operation of sending a signal to the first communications device at a predetermined time-frequency resource.

The second receiving unit here also corresponds to the communication interface, and can be used for receiving the first measurement configuration information.

The execution unit may correspond to a processor or processing circuit. Ability to respond to the first silent configuration letter The silent operation is performed, that is, the masking operation.

The first transmission configuration information herein can be referred to the foregoing embodiment, and is not repeated here.

In some embodiments, the apparatus further includes:

a second receiving unit, configured to receive the first measurement result;

The second coordination unit is configured to perform interference coordination across links according to the first measurement result.

The second receiving unit may also correspond to a receiving interface, for example, a receiving antenna, capable of receiving the first measurement result. The second coordination unit may correspond to a processor or processing circuitry to perform interference coordination across links.

In some embodiments, the first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

The device also includes:

a second measurement unit configured to obtain a second measurement result of the second channel from the first communication device to the second communication device based on channel reciprocity and the first measurement result; or Decoding second transmission configuration information sent by the first communication device;

The second sending unit is configured to measure the second reference signal according to the second sending configuration information.

The second measurement unit may also correspond to a processor or a processing circuit, may obtain the first measurement result according to reciprocity of the channel, or perform measurement on the second reference signal according to the received second transmission configuration information, The second measurement result is obtained.

The embodiment of the present invention further provides a timing deviation measurement method, where the base station configures configuration information of the user terminal UE to perform timing deviation measurement across links;

Sending the configuration information to the UE, where the configuration information is used to trigger the UE to perform timing offset measurement across the link and report the measurement result to the base station.

In this embodiment, the base station performs configuration information of timing offset measurement across links, for indicating The UE performs a synchronization effect between different communication nodes, for example, between the base station and the base station, and between the UE and the UE.

The configuration information is sent to the UE, and then the UE performs measurement according to the configuration information, and the measurement result reported by the UE is received after the measurement.

In this case, the base station also receives the measurement result reported by the UE. Based on this measurement, it can be used for synchronization correction between links.

Another embodiment of the present invention provides another timing offset measurement, including:

The measurement result is reported to the base station.

In this embodiment, the UE receives configuration information sent by the base station, and performs timing offset measurement across the link according to the configuration information, where the timing offset measurement is performed to measure the out-of-synchronization phenomenon. The cross-link here can be referred to the corresponding part of the foregoing embodiment, and will not be described again again.

The embodiment of the invention further provides a timing deviation measuring method, including:

The base station is configured to perform measurement information of timing offset measurement across links,

In this embodiment, the base station is configured to obtain measurement information and perform measurement according to the configuration information. Measurement results can also be used to synchronize across links.

Several specific examples are provided below in connection with any of the above embodiments:

In this example, the network side only takes a base station (gNB) as an example. The method applied to the base station in this example can also be applied to a cell, a small cell, a transmission and reception point (TRP), and an access point ( AP) deployment equipment on the network side.

First example:

It involves measurement/coordination between two or more base stations, mainly solving the problem of cross-link interference measurement between base stations.

The uplink receiving base station is subjected to cross-link interference of the adjacent downlink transmitting base station, and the cross-link interference needs to be reduced to improve the communication quality. First, the cross-link interference is required. Measurement.

As shown in FIG. 6, the downlink transmission of the second base station gNB2 causes cross-link interference between the base stations for uplink reception of the first base station gNB1. In order to perform cross-link interference coordination and cancellation between base stations, gNB1 needs to measure channel/interference conditions of gNB2 to gNB1.

When gNB1 is measured, in addition to receiving the reference signal transmitted by gNB2, there may be interference from gNB1 neighboring base stations or UEs in other cells, such as gNB3 or UE3-1 in FIG. 6, resulting in inaccurate measurement.

Cross-link interference detection between base stations can be performed by one or more of the following steps.

Step 1: The neighboring gNB sends at least one of the following information through a backhaul (such as an X2 interface or a private interface) or an air interface (such as OTA signaling): the reference signal transmission configuration information, and the gNB measurement configuration information. The neighboring gNB includes at least a transmitting base station and a measuring base station, and optionally, a neighboring base station that measures the base station.

Transmitting base station: During the measurement process, the transmitting base station transmits a reference signal for measurement. For example, when an interfering base station transmits a DL, cross-link interference is caused to the interfered base station UL reception. During the measurement process, the interfering base station transmits a reference signal for measurement. Therefore, the transmitting base station here is an interfering base station, such as gNB2 in FIG.

Measuring base station: During the measurement process, the measurement base station receives the reference signal transmitted by the transmitting base station, and performs measurement. For example, the UL reception of the victim base station may be subject to cross-link interference transmitted by the interfering base station DL. During the measurement process, the victim base station receives the reference signal transmitted by the interfering base station and performs measurement. Therefore, the measurement base station here is a victim base station, such as gNB1 in FIG.

The reference signal can be used at least for cross-link interference measurement between gNBs. The cross-link interference measurements in this example may include: RRM measurements, CSI/CQI measurements, or interference measurements, or path loss measurements.

The reference signal used for base station measurement may be a DL DMRS, a CSI-RS, or a dedicated measurement signal; a new measurement signal such as a newly designed signal for RRM measurement or channel/interference measurement, such as an uplink and downlink RS symmetric DL RS. Optionally, the reference signal used for base station measurement is a CSI-RS. The dedicated measurement signal in this example can be a specially designed measurement signal.

Optionally, the reference signal carries cell/base station identifier (Identiy, ID) information. The method includes at least one of: a cell physical ID, or a sending point ID (such as a TRP ID or an AP ID), or a cell/base station/sending device number. The carrying method can be implicit or displayed. The implicit method can be generated by scrambling or participating in the sequence of reference signals by the above ID.

The reference signal transmission configuration information includes at least one of: transmission subframe/slot configuration information, transmission period/transmission offset information, port information, transmission pattern configuration information, and muted-RS resource configuration information.

The sub-frame/slot configuration information is used to indicate in which subframes/time slots the gNB transmits the reference signal, which is generally determined by a corresponding transmission period and/or a transmission offset, or a non-period trigger transmission.

The pattern configuration information is sent to indicate a time-frequency pattern of the RS (CSI-RS) transmitted by the gNB, such as which symbols and which REs of the subframe/slot are to transmit the reference signal.

The muted-RS resource configuration information is used to indicate a subframe/slot, or a time-frequency resource pattern, or a port for transmitting a muted-RS, and the RS transmits at zero power on these resources.

The gNB measurement configuration information includes at least one of: measurement object information, measurement subframe/slot configuration information, measurement period/measurement offset/measurement duration information, measurement pattern configuration information, and muted-RS resource configuration information.

The measurement object information is used to indicate the channel/interference condition between the gNB and which gNB is measured, and the measurement object can be indicated by the cell ID or by renumbering the gNB.

Measuring subframe/slot configuration information for indicating which subframes/time slots the gNB receives or measures the reference signal, generally determined by a corresponding measurement period and/or measurement offset and/or measurement duration, or Cycle triggered measurements.

The measurement pattern configuration information is used to indicate a time-frequency pattern of the gNB measurement RS (CSI-RS), such as which symbols and which REs of the subframe/time slot are used to measure the reference signal.

Muted-RS resource configuration information for indicating a subframe/time slot in which a muted-RS is transmitted, or a time-frequency resource pattern, or a port, and the RS is transmitted at zero power on these resources. The base station measures the channel/interference conditions of the neighbors on these resources.

For example, the neighboring gNB1, gNB2, and gNB3 in FIG. 6 transmit configuration information and/or through the following reference signal CSI-RS through a backhaul (such as an X2 interface or a private interface) or an air interface (such as OTA signaling). Or gNB to measure configuration information.

As shown in FIG. 7, gNB1 and gNB2 are adjacent to each other, and gNB1 and third base station gNB3 are also adjacent to each other. That is, the neighboring region of gNB1 is gNB2 and gNB3; the neighboring region of gNB2 is gNB1; the neighboring region of gNB3 is gNB1. These configuration information can only interact between neighbors.

The sending configuration information and the measurement configuration information may be exchanged at different time points, or the configuration information may be transmitted only between the base stations without interaction measurement configuration information. These two kinds of information can interact at different times or in one direction. For example, at time T0, gNB2 sends a signal transmission configuration information to gNB1; and at time T1, gNB1 transmits its measurement configuration information to gNB2 and gNB3.

The measurement configuration information of the measurement base station can be generated according to the signal transmission configuration of the transmission base station. For example, the measurement subframe/slot of the measurement base station may be a subset or a complete set of transmission subframes/time slots of the transmission reference signal in the transmission configuration information. For example, the transmission base station signal transmission period is 20 ms (assuming the offset is 0), that is, it is transmitted in subframes such as subframe 0/20/40/60/80. The measurement period of the measurement base station is 40 ms, that is, it is measured in subframes such as subframe 0/40/80.

The transmitting base station sends the reference signal periodically, or it can be sent aperiodically. The aperiodic transmission may include: triggering transmission based on a triggering event. The measurement base station measurement cross-link interference can also be aperiodic or triggered measurement. In some cases, the reference signal of the transmitting base station is transmitted periodically, and the measurement of the measuring base station is a non-periodic measurement.

Step 2: The sending gNB sends a reference signal according to the foregoing sending configuration information. The measurement gNB receives the reference signal according to the measurement configuration information and performs measurement.

Optionally, the measuring gNB is in the measurement resource, does not schedule or receive the uplink signal/channel from the local cell; or notifies the unscheduled UE not to transmit the UL signal/channel in the measurement resource; or measures the uplink or the resource The downstream line performs a muting operation. The measurement resources herein may be the predetermined time-frequency resources in the foregoing embodiments.

Optionally, other gNBs in the vicinity of the gNB are measured according to the measurement configuration of the measurement gNB, performing a silent operation operation in the measurement resource, not transmitting the channel/signal, or working in a muted-RS/transmission power of zero. Other gNBs here do not include sending gNBs.

Optionally, other gNBs in the vicinity of the gNB are notified to notify the subordinate UE, and the subordinate UE performs a silent operation in the measurement resource of the measurement gNB, and does not transmit the UL signal or the channel.

For example, for Figure 6, downlink transmission of gNB2 can cause cross-link interference for uplink reception of gNB1. In order to perform cross-link interference coordination and cancellation, gNB1 needs to measure channel conditions and/or interference conditions of gNB2 to gNB1. At time T0, gNB2 sends a signal transmission configuration information to gNB1. At time T0-1, gNB2 starts transmitting the reference signal according to the transmission configuration. At time T1, gNB1 sends its measurement configuration information to gNB2 and gNB3. At time T1-1, gNB1 receives the signal and performs the measurement according to the measurement configuration. T0-1 and T1-1 may be at the same time, or T1-1 may be later than T0-1. gNB3 also does not transmit channels/signals or perform muted-RS operations in the measurement resources of gNB1 according to the measurement configuration of gNB1. Optionally, gNB3 notifies its subordinate UE, and the subordinate UE performs a silent operation in the measurement resource of gNB1, and does not transmit a UL signal or a channel.

When gNB1 measures the downlink channel/interference condition between gNB2 and gNB1, gNB3 and/or its subordinate UEs that cause interference to gNB1 are muting at this time, which reduces the undetermined interference factor during gNB1 test and improves the measurement. Accuracy helps to selectively interfere with coordination and elimination.

Measuring gNB to measure the channel/interference condition between gNB2 and gNB1, RRM measurement results (such as reference signal received power (RSRP) / received signal strength indicator (RSSI) / reference signal received quality (RSRQ)) measured by gNB, or CSI/CQI measurement result, or interference measurement result.

By measurement, at least one of the following channel or interference information can be obtained: accurate channel measurement result, channel matrix, eigenvector, covariance matrix, interference matrix, interference intensity (or interference intensity level division), RRM measurement result, CQI/PMI/ RI.

Step 3: Optionally, the measurement gNB sends the measurement result information to the sending gNB through a backhaul link (such as an X2 interface) or an air interface (such as OTA signaling).

gNB1 measures the downlink channel/interference condition between gNB2 and gNB1, and can obtain RRM measurement results (such as RSRP/RSSI/RSRQ measured by gNB), or CSI/CQI measurement results, or interference measurement results.

The transmitted measurement result information may be accurate information or quantitative information of the foregoing measurement result, and may include at least one of the following: accurate channel measurement result, channel matrix, eigenvector, covariance matrix, interference matrix, interference intensity (or interference intensity level) Division), RRM measurement results, CQI/PMI/RI.

For example, measuring gNB measures RSRP or path loss. The smaller the RSRP or the larger the path loss, the further the transmitting base station is from the measuring base station. When the measurement base station receives the UL, the cross-link interference received by the transmitting base station DL is smaller. Then the cross-link interference at this time should have less impact on the uplink power of the UE. When the cross-link interference measurement result is close to or approximately equal to 0, the cross-link interference does not affect the uplink power of the UE. The greater the cross-link interference, the larger the uplink power of the UE should be.

Conversely, the larger the RSRP or the smaller the path loss, the closer the transmitting base station is to the measuring base station. When the measurement base station receives the UL, the cross-link interference received by the transmitting base station DL is larger. Then, the uplink power of the UE under the measurement of the base station needs to be raised, or the interference coordination mechanism such as step 4 is used to reduce the impact of the cross-link interference on the UL transmission.

Step 4: According to the measurement result or the information of the exchanged measurement result, between two adjacent gNBs Perform interference coordination, and the interference coordination operation may specifically include at least one of the following:

Transmitting the gNB when the DL is scheduled, mapping the target downlink signal/channel in the null space of the interference channel;

Send gNB when scheduling DL, the direction of the analog beam avoids measuring gNB;

Measuring gNB when scheduling UL, does not use omnidirectional reception, avoiding receiving beams from the direction of transmitting gNB;

When the gNB is scheduled, if there is a cross-link interference for transmitting the gNB to the UL reception at this time, one of the following ways can be avoided to avoid the interference: the UL transmission of the measurement gNB can raise the power, delay the transmission, and change the modulation and coding strategy (MCS). ), change the transmit carrier, cancel the transmission, and so on.

When transmitting a gNB, when scheduling a DL, if there is a cross-link interference that the transmitting gNB transmits to measure the gNB UL reception at this time, one of the following methods may be adopted: the DL transmission of the transmitting gNB may reduce power, delay transmission, change MCS, change transmission carrier, Cancel sending and so on.

Step 5: When the measurement gNB transmits the DL signal, it also causes cross-link interference to the UL reception of the transmitting gNB. Therefore, transmitting the gNB also requires obtaining a channel/interference condition between the measurement gNB and the transmitting gNB.

Manner 1: Based on the channel heterogeneity, according to the measurement result information of the measurement gNB received in step 3, the transmitting gNB can convert the channel/interference condition between the measurement gNB and the transmitting gNB. For example, the channel matrix of the gNB to the transmitting gNB is obtained by transposing the channel matrix of the transmitting gNB to the measuring gNB.

Manner 2: Steps 1 to 3 are performed, and the gNB measurement is sent to obtain a channel/interference condition between the measurement gNB and the transmitting gNB. At this time, the measurement gNB transmits the reference signal, and the transmission gNB performs the measurement.

Second example,

The base station that performs the downlink transmission is performing the measurement, and the downlink transmitting base station causes cross-link interference to the neighboring other uplink receiving base stations. The main purpose of the measurement is to reduce the downlink transmission of the base station to the uplink receiving of other base stations. Link interference.

The main differences between this example and the first example are:

In this example, the transmitting base station is a victim base station, such as gNB1 of FIG. 6, and the transmitting base station transmits a reference signal for measurement. The measurement base station is an interference base station, as shown in gNB2 of FIG. 6, the measurement base station receives the reference signal transmitted by the transmission base station, and performs measurement.

In addition, the measurement results of this example and the cross-link interference relationship are also different from the first example:

For example, measuring the received power (RSRP) or path loss of the gNB measurement reference signal.

The smaller the RSRP or the larger the path loss, the further the transmitting base station is from the measuring base station. When the measurement base station transmits the DL signal, the smaller the cross-link interference caused to the UL reception of the transmitting base station, the measurement gNB can transmit the DL signal with a larger power.

The larger the RSRP or the smaller the path loss, the closer the transmitting base station is to the measuring base station. When the measurement base station transmits the DL signal, the cross-link interference caused to the UL signal reception of the transmitting base station is larger. Then, the downlink power of the measurement base station needs to be reduced, or the interference coordination mechanism such as step 4 is used to reduce the impact of the cross-link interference caused by the UL reception of the transmitting base station.

Except for the above differences, the measurement process of this example is the same as or similar to the measurement process of the first example (especially steps one to three). Alternatively, the measurement results of the present example may also be obtained from the first example steps 1 through 3 based on channel reciprocity.

Third example:

Measurement/coordination between two or more UEs is involved to enable cross-link interference measurement between UEs.

The downlink receiving UE is subjected to the cross-link interference of the neighboring uplink transmitting UE, and the measurement result after the measurement may be used to reduce the cross-link interference that other UEs uplink transmit to the downlink receiving of the UE.

Step 1: The transmitting UE sends a reference signal according to the sending configuration information. The measurement UE receives the reference signal according to the measurement configuration information and performs measurement.

Transmitting UE: In the measurement process, the transmitting UE sends a reference signal for measurement. For example, when the interfering UE transmits the UL signal, cross-link interference is caused to the DL reception of the victim UE. During the measurement process, the interfering UE transmits a reference signal for measurement. Therefore, the transmitting UE here is an interfering UE. As shown in Figure 6 of UE1-1.

Measuring UE: During the measurement process, the measurement UE receives the reference signal transmitted by the transmitting UE, and performs measurement. For example, the DL reception of the victim UE may be interfered with by the inter-link interference transmitted by the UE UL. During the measurement process, the victim UE receives the reference signal transmitted by the interfering UE and performs measurement. Therefore, the measurement UE here is a victim UE. As shown in Figure 6 of UE2-1.

For dynamic time division duplexing (TDD), the transmitting UE and the measuring UE belong to different cells. For full duplex, the transmitting UE and the measuring UE may belong to the same cell, or may belong to different cells.

The reference signal can be used at least for measurements between UEs, where measurements between UEs can be used for RRM measurements, CSI/CQI measurements, or interference measurements, or path loss measurements.

The reference signal used for UE measurement may be UL DMRS, SRS, or new measurement signal; new measurement signal such as newly designed signal for RRM measurement or channel/interference measurement, such as in uplink and downlink reference signal (RS) Uplink reference signal (UL RS). Optionally, the reference signal used for UE measurement is a Channel Sounding Reference Signal (SRS).

In order to reduce the complexity of measurement between UEs, or to exchange some unnecessary information, the reference signals used for measurement between UEs are transmitted with a fixed power value or a preset power value. That is, the reference signal used for measurement between UEs may not be controlled by uplink power. The reason is that if the reference signal power is changed, it needs to be notified to the base station to which the UE transmitting the reference signal belongs, and it needs to be notified by the base station to the base station to which the measurement UE belongs.

In other words, unless the measurement signal power change or the new power value information is received, the measurement UE assumes that the power of the measurement signal does not change.

Optionally, the reference signal carries cell ID/base station information. The method includes at least one of: a cell physical ID, or a sending point ID (such as a TRP ID or an AP ID), or a cell/base station/sending device number. The carrying method can be implicit or displayed. The implicit method can be generated by scrambling or participating in the sequence of reference signals by the above ID.

Optionally, the reference signal carries the ID information of the UE. For example: Cell Radio Network Temporary Identity (C-RNTI), or UE number. Similarly, the carrying mode may be an implicit carrying mode or a display carrying mode. The implicit carrying mode may be implicitly referred to by the above-mentioned UE ID information scrambling or participation in the sequence of the reference signal, and the display is carried to directly carry the ID information. The UE number may include a UE number within a cell or a UE number within a cell set. The implicit carrying mode may obtain the ID information by carrying a mapping relationship or a conversion relationship between other information and ID information in the reference signal by using other information carried in the reference signal.

The reference signal transmission configuration information includes at least one of: transmission subframe/slot configuration information, transmission period/transmission offset information, port information, signaling pattern configuration information, and muted-RS resource configuration information.

The subframe/slot configuration information is sent to indicate which subframes/time slots the UE transmits the reference signal, which is generally determined by a corresponding transmission period and/or a transmission offset, or a non-period trigger transmission.

Transmitting pattern configuration information, which is used to indicate a time-frequency pattern of the RS (SRS) sent by the UE, such as which symbols and which REs of the subframe/slot are used to transmit the reference signal; and the muted-RS resource configuration is used to indicate that the muted-RS is sent. Subframe/slot, or time-frequency resource pattern, or port, and RS is transmitted at zero power on these resources.

The UE measurement configuration information includes at least one of: measurement object information, measurement subframe/slot configuration information, measurement period/measurement offset/measurement duration information, measurement pattern configuration information, muted-RS resource configuration information.

The measurement object information is instructed by the UE to measure the channel/interference condition with which UE, and the measurement object can be indicated by the UE ID or by renumbering the UE.

Measuring subframe/slot configuration information for indicating which subframes/time slots the UE receives or measures the reference signal, generally determined by a corresponding measurement period and/or measurement offset and/or measurement duration, or Cycle triggered measurements.

The measurement pattern configuration information is used to instruct the UE to measure the time-frequency pattern of the RS (SRS), such as which symbols and which REs of the subframe/slot are to measure the reference signal; the muted-RS resource configuration is used to indicate the transmission of the muted-RS Subframe/slot, or time-frequency resource pattern, or port, and RS is transmitted at zero power on these resources. The UE measures the channel/interference condition of the neighboring UE to itself on these resources.

The transmission configuration information is sent by the base station to which the transmitting UE belongs to the transmitting UE. The measurement configuration information is sent by the base station to which the measurement UE belongs to the measurement UE. Alternatively, the transmitting UE transmitting the reference signal may be triggered by the base station aperiodically, and/or the measuring UE measurement reference signal may also be triggered by the base station aperiodic.

Optionally, the sending configuration information may be sent by the base station to which the transmitting UE belongs to the base station to which the measuring UE belongs and/or the neighboring base station that sends the base station of the UE by using a backhaul link or an air interface. Optionally, the base station and/or the neighboring base station of the measurement UE are sent to the subordinate UE.

Optionally, the measurement configuration information may be sent by the base station to which the UE belongs to the base station to which the transmitting UE belongs and/or the neighboring base station of the base station to which the measurement UE belongs, by using a backhaul link or an air interface.

The measurement configuration of the measurement UE may be generated according to the transmission configuration of the transmitting UE. For example, the measurement subframe/slot of the measurement UE may be a subset or a corpus of the transmission UE transmission configuration. For example, the period in which the UE signal is transmitted is 20 ms (assuming the offset is 0), that is, in a subframe such as subframe 0/20/40/60/80. The measurement period of the measurement UE is 40 ms, that is, measured in subframes such as subframe 0/40/80.

The reference signal transmitted by the transmitting UE for measuring the UE measurement may be aperiodic or trigger transmission; the measurement UE measurement cross-link interference may also be aperiodic or trigger measurement. Alternatively, the former is sent periodically and the latter is aperiodic.

Optionally, the measuring UE does not receive the downlink signal/channel from the local cell in the measurement resource. Or the base station performs a silent operation operation or does not schedule a DL transmission in the measurement resource. The UE that measures the UE does not schedule other UEs to perform UL transmission in the measurement resource.

Optionally, the other UEs that are in the vicinity of the UE (excluding the transmitting UE) perform the silent operation operation in the measurement resource according to the measurement configuration of the measurement UE, do not send the channel/signal, or work in the muted-RS/zero transmit power mode. . Other UEs in the vicinity may be the same cell or neighboring cell as the measurement UE. The measurement configuration of the measurement UE may be notified to the neighboring UE of the measurement UE by the base station and/or its neighbor base station measuring the UE.

When measuring the downlink channel/interference condition between the transmitting UE and the measuring UE by the UE, the other UEs that cause interference to the measuring UE are muting at this time, which reduces the undetermined interference factor when measuring the UE measurement, and improves the measurement. Accuracy helps further interference coordination and elimination.

The measurement UE measures the channel/interference condition between the transmitting UE and the measurement UE, and can obtain an RRM measurement result (such as RSRP/RSSI/RSRQ measured by gNB), or a CSI/CQI measurement result, or an interference measurement result, or a path loss. .

At least one of the following channel or interference information may be obtained: accurate channel measurement result, channel matrix, eigenvector, covariance matrix, interference matrix, interference strength (or interference intensity level division), RRM measurement result, CQI/PMI/RI.

Step 2: The measurement UE reports the measurement result information to the base station to which the measurement UE belongs. Optionally, the base station to which the UE belongs is sent to the sending UE by using a backhaul link (such as an X2 interface) or an air interface (such as OTA signaling).

The transmitted measurement result information may be accurate information or quantitative information of the foregoing measurement result, and may include at least one of the following: accurate channel measurement result, channel matrix, feature vector, and co-party Difference matrix, interference matrix, interference strength (or interference intensity level division), RRM measurement results, CQI/PMI/RI. The precise information herein may directly include various measurement values, which are information that the measurement values are processed by grading.

For example, the measurement UE measures RSRP or path loss. The smaller the RSRP or the larger the path loss, the farther the transmitting UE is from the measurement UE. When the measurement UE receives the DL, the cross-link interference received by the transmitting UE UL is smaller. Then the cross-link interference at this time should have less impact on measuring the downlink power corresponding to the UE. When the cross-link interference measurement result is close to or approximately equal to 0, the cross-link interference does not affect the downlink power adjustment of the UE. The greater the cross-link interference, the larger the downlink power of the UE should be.

Conversely, the larger the RSRP or the smaller the path loss, the closer the transmitting UE is to the measurement UE. When the measurement UE receives the DL, the cross-link interference received by the transmitting UE UL is larger. Then, the downlink power corresponding to the UE needs to be uplifted, or the interference coordination mechanism such as step 3 is used to reduce the impact of cross-link interference on the DL reception, and even the DL is not sent or delayed to be sent to the measurement UE.

Step 3: Perform cross-link interference coordination between two adjacent gNBs or UEs according to the measurement result or the measured measurement result information. Specifically, at least one of the following manners may be adopted:

The transmitting UE maps the target uplink signal/channel in the zero space of the interference channel when performing UL transmission;

When the transmitting UE performs UL transmission, the direction of the analog beam avoids measuring the UE;

When the base station sends the DL to the measurement UE, the measurement UE does not use the omnidirectional reception, and avoids receiving the beam from the direction of the transmitting UE;

When the UE receives the DL, if there is a cross-link interference of the transmitting UE to the DL receiving at this time, at least one of the following may be adopted: measuring the DL transmission corresponding to the UE may raise the power, delay the transmission, change the MCS, change the transmission carrier, Cancel sending and so on.

When the transmitting UE sends the UL, if there is a cross-link interference that the transmitting UE receives for measuring the UE DL at this time, at least one of the following may be adopted: the UL transmission of the transmitting UE may reduce power, delay transmission, change MCS, change transmission carrier, Cancel sending and so on.

Step 4: Conversely, since the measurement UE transmits the UL, it also causes cross-link interference to the DL reception of the transmitting UE. Therefore, at this time, the transmitting UE and/or the base station thereof also needs to obtain a channel/interference condition between the measurement UE and the transmitting UE.

Manner 1: Based on the reciprocity of the channel, according to the measurement result information of the measurement UE received in step 2, the gNB to which the UE belongs may be converted to obtain the channel/interference condition between the measurement UE and the transmitting UE. For example, the channel matrix of the UE to the transmitting UE is obtained by transposing the channel matrix of the transmitting UE to the measuring UE.

Manner 2: Steps 1 to 2 are performed, and the UE is measured to obtain a channel/interference condition between the UE and the transmitting UE. At this time, the measurement UE transmits a reference signal, and the transmitting UE performs measurement.

Fourth example:

It involves measurement/coordination between two or more UEs, mainly solving the problem of cross-link interference measurement between UEs.

The measurement is performed by the UE that is preparing/initiating the uplink transmission, and the uplink-transmitted UE may cause cross-link interference to the other downlink-received UEs. The main purpose of the measurement is to reduce the uplink transmission of the UE to the downlink reception of other UEs. Link interference.

The main difference between this example and the third example is that in this example, the transmitting UE is a victim UE, such as UE 1-2 of FIG. 6, the transmitting UE transmits a reference signal for measurement.

The UE is measured as an interfering UE. For example, UE 1-1 of FIG. 6 , the measurement UE receives and transmits a reference signal sent by the UE, and performs measurement.

For example, the measurement UE measures RSRP or path loss.

The smaller the RSRP or the larger the path loss, the farther the transmitting UE is from the measurement UE. When the measurement UE transmits the UL, the cross-link interference caused to the DL reception of the transmitting UE is smaller, then the measurement UE can transmit with a larger UL power or normal power. Cross-link interference to measure UE's uplink work The impact of control is small.

Conversely, the larger the RSRP or the smaller the path loss, the closer the transmitting UE is to the measurement UE. When measuring the UE transmitting UL, the cross-link interference caused to the DL reception of the transmitting UE is larger. Then, the uplink power of the measurement UE needs to be reduced, or the interference coordination mechanism, such as the third example step 3, is used to reduce the impact of the cross-link interference caused by the DL reception of the transmitting UE. Don't even send or delay sending.

Except for the above differences, the measurement process of this example is the same as or similar to the measurement process of the first example (especially steps one to two). Alternatively, the measurement results of the present example may also be obtained from the first example steps 1 through 2 based on channel reciprocity.

Fifth example:

Two types of measurements are involved for cross-link interference measurements between base stations or between UEs.

The first category is statistical cross-link interference measurement: also known as semi-static cross-link interference measurement. For example, the RRM measurements in the first to fourth examples. Statistical cross-link interference measurement generally has a long measurement time or a wide frequency domain, and the measurement result is relatively stable.

For example, by way of example one or two, gNB1 can measure the interference or channel matrix of gNB2 to itself; gNB2 can also measure the interference or channel matrix of gNB1 to itself.

For example, by way of example three or four, UE 1-1 may measure the interference or channel matrix of UE 2-1 to itself; UE 2-1 may also measure the interference or channel matrix of UE 1-1 to itself.

Two neighboring base stations or two neighboring UEs may be measured by one party and the other party may be obtained according to channel reciprocity. It can also be measured by both parties.

The second category is instantaneous cross-link interference measurement: the instantaneous measurement time is very short, such as a few us to several hundred us. Instantaneous cross-link interference measurements are primarily used by devices to identify the direction of transmission of neighboring devices.

The interference measurement method involved in this example: statistical cross-link interference measurement to obtain RRM measurement results and/or channel/interference conditions; instantaneous cross-link interference measurement to obtain interference sources or interference directions.

Through statistical cross-link interference measurement, gNB1 measures the interference or letter of gNB2 to itself. The matrix of the track; gNB2 can also measure the interference situation or channel matrix of gNB1 to itself. However, at this time, gNB1 or gNB2 transmits a reference signal for measurement between base stations, and actually no service is transmitted. In other words, gNB1 receives the UL service, but gNB2 may not have DL transmission at all, and thus does not cause cross-link interference to gNB1. That is, although gNB1 obtains the possible cross-link interference situation or channel matrix of gNB2, it does not actually cross-link interference at this time. But in the event of a cross-link interference problem, this pre-measured result can be used for interference coordination or interference cancellation.

When the gNB2 has a DL transmission, it transmits the detection signal RS2 at the preset transmission position. Then, if gNB1 has UL service, gNB1 or UE1-1 performs instantaneous cross-link interference measurement at the preset measurement position, receives RS2, and judges that gNB2 has DL transmission at this time. In addition, the pre-measured gNB2 cross-link interference to gNB1, gNB1 or the two adjacent gNBs can perform interference coordination or interference cancellation mechanism. The same applies to cross-link interference measurements between the UE and the UE.

The preset transmission position for transmitting the above detection signal and the preset measurement position for performing the instantaneous cross-link interference measurement are associated, for example, within a time window, or within one or more symbols, or within a blank resource.

Sixth example:

Involving cross-link interference threshold issues,

method one:

Set the first threshold and/or the second threshold. details as follows:

The first threshold is set. If the cross-link interference measurement result is less than or equal to the first threshold, it can be said that there is no cross-link interference at this time, or even if there is cross-link interference, it can be ignored. At this point, the data can be sent normally without using the interference cancellation method. This transmission behavior can be referred to as a normal transmission mode.

If the cross-link interference measurement result is greater than or equal to the first threshold value, it may indicate that there is cross-link interference at this time, and the data transmission may be affected. Interference cancellation method must be used at this time Can be sent, or not sent across the link at this moment. This transmission behavior may be referred to as a post-interference suppression transmission mode, or as a simultaneous cross-link transmission mode.

Optionally, a second threshold value is set. Here, the second threshold is greater than the first threshold.

If the cross-link interference measurement result is greater than or equal to the first threshold, but less than or equal to the second threshold, it can be said that there is cross-link interference at this time, but it is not very serious. There is no need to stop sending or sending in the same direction, but you must use the interference cancellation method before sending. That is, it is necessary to use the above-described interference suppression transmission mode. The following mechanisms can be used: 1. Power up or down; 2. Change MCS;

If the cross-link interference measurement result is greater than or equal to the first threshold value and greater than the second threshold value, it may indicate that there is cross-link interference at this time, and is very serious. At this time, it cannot be sent immediately in the opposite direction to the interference. That is to say, it is necessary to use the above-mentioned mode that cannot be transmitted simultaneously across links. The following mechanisms can be used: 1. Send in the same direction as the measured interference source. For example, if the interference source is in the DL direction at this time, the local area should also be DL, that is, the same transmission direction is guaranteed; 2. Stop transmission; 3. Delay transmission; 4. Use different time-frequency resources, for example, use different physics. Resource block (PRB) or subband. 5. Replace the transmitted carrier; and so on.

Optionally, there are two implementations as follows:

1. The network side configures the first threshold value and/or the second threshold value, and the base station or the UE independently selects the corresponding transmission mode according to the above-mentioned principle according to the measurement result of the cross-link interference.

2. The base station uses the cross-link interference measurement result (the cross-link interference measurement result may be obtained by the base station itself or may be reported by the UE after measurement), and directly uses or configures the foregoing transmission mode for the UE.

Eighth example:

The interference scenario between the gNB and the gNB is involved, especially when the directional beam (directional beam) is used at the transmitting end, and the interference problem in the omnidirectional receiving scenario is adopted at the receiving end.

As shown in FIG. 7, the transmitting end (gNB1, and UE2-1/UE2-2/UE2-3 under gNB2) transmit using directional beams, and the receiving end (UE1-1 and gNB2 under gNB1) adopts omnidirectional reception. .

If gNB1 has a beam directed to gNB2, that is, gNB1 has a downlink transmission in this direction. At this time, regardless of which location within the coverage of gNB2, the UE transmits UL data to gNB2, it will be interfered by the cross-link between the base stations. That is, whether there is one base station's downlink to another base station's uplink cross-link interference mainly depends on the transmit beam of gNB1.

This problem can be solved by one of the following steps, or a combination of multiple steps:

Step 1: Perform interference source identification. That is, interference beam identification. The interfering base station transmits a reference signal in each directional beam, and the victim base station receives the reference signal and performs the measurement.

Optionally, the victim base station feeds back the channel/interference condition corresponding to the sequence number or sequence number of the interference beam to the interference base station. Optionally, the victim base station only feeds back to the interfering base station the channel/interference condition corresponding to one or several interference beam sequence numbers or sequence numbers whose interference is the largest.

This process is similar to the first example. The interference gNB and the interfered gNB need to exchange at least one of the following information through a backhaul link (such as an X2 interface) or an air interface (such as OTA signaling): reference signal transmission configuration information, gNB Measure configuration information. Optionally, on the basis of the first example, the reference signal sending configuration information further includes sending a beam sequence (beam ID) of the gNB (interference gNB), or a beam sequence number and a corresponding reference signal sending configuration information.

The interfered gNB indicates the measurement result information to the interference gNB. Optionally, on the basis of the first example, the measurement result information further includes a beam sequence number and corresponding measurement result information, or the interfered gNB feeds back one or more beam numbers that have the greatest interference to the interference to the interference gNB.

For example, the gNB1DL transmits four beams, which are a transmit (TX) beam 1, a TX beam 2, a TX beam 3, and a TX beam 4. The gNB1 respectively transmits reference signals in the four beams, and the gNB2 is each beam indicated by gNB1. The transmission configuration information of the reference signal is transmitted, the reference signal is received, and the measurement is performed. Obtain the channel/interference matrix corresponding to each beam, and then put each beam The sequence number and corresponding channel/interference status are fed back to gNB1. Or, after evaluation, only one or several beam numbers that have the greatest interference to themselves are sent to gNB1.

Here, it is assumed that the TX beam 1 of gNB1 has the greatest influence on the UL reception of gNB2. All uplink receptions of gNB1 TX beam 1 and gNB2 form an interference pair.

Step 2: According to the interference beam or channel/interference condition determined in step 1, the interfering base station and the victim base station perform cross-link interference coordination.

Limit or coordinate the downlink transmission in gNB TX beam 1, including at least one of the following:

a. Interference gNB When scheduling DL transmission, the directional beam does not use TX beam 1;

b. Interference gNB When scheduling DL transmission, the target downlink signal/channel is mapped in the null space of the interference channel. The interference channel may be measured by the interfered gNB receiving the RS transmitted in the TX beam 1 and then fed back to the interference gNB; or the RS is transmitted by the interfered gNB, the interference gNB measures a channel, and then the interference is obtained according to the channel dissimilarity. matrix;

c. Reduce DL power. Reduce UL interference to gNB2.

d. Receive the scheduling or transmission information of gNB2, aligned with the DL/UL transmission direction of gNB2. When gNB2 transmits DL, gNB1 will send DL in TX beam 1.

When e.gNB1 has downlink transmission, it notifies gNB2 that gNB2 does not schedule uplink transmission.

f. Priority can be set, and TX beam 1 of gNB1 downlink is transmitted with low priority (because it is an interference party and will interfere with all UL reception in the neighboring cell). The DL transmission is performed in the TX beam 1 only when the neighboring cell does not transmit or does not transmit in the UL direction.

g. No DL transmission is performed within this beam. The DL transmission will be configured at a longer period/interval.

h. The interfered gNB does not use omnidirectional reception when scheduling UL transmission, avoiding receiving beams from the interference gNB direction. In the present invention, omnidirectional reception may be by receiving signals from each direction, and directional reception may be to receive only signals in a partial direction.

i. Interfering gNB When scheduling UL transmission, if there is interference cross-link interference of gNB to UL reception at this time, one of the following methods may be adopted: UE UL transmission of the interfered gNB may be carried Rise power, delay transmission, change MCS, change transmit carrier, cancel transmission, etc.

Interference gNB When scheduling DL transmission, if there is interference between the gNB and the interfered gNB UL received at this time, one of the following methods may be adopted: DL transmission of the interference gNB may reduce power, delay transmission, change MCS, change transmission Carrier, cancel transmission, and more.

In addition, the other directions TX beams of gNB1 and gNB2 may not be limited by the above.

Eighth example:

It involves the interference scenario between the gNB and the gNB, especially the interference problem in the directional beam (directional beam) scenario in the transmitting end and the receiving end.

As shown in Figure 8, the transmitting end uses directional beam transmission and the receiving end uses directional beam reception. At this time, only when the RX beam of gNB2 overlaps with the TX beam of gNB1, the downlink signal of one base station causes cross-link interference to the uplink of another base station.

The following cross-link interference can be detected by one or more of the following steps:

Step 1: Perform interference source identification. That is, interference beam identification. The interfering base station transmits a reference signal in each directional beam, and the victim base station receives the reference signal in each directional beam and performs the measurement. Each interfering beam and receiving beam forms a transmit and receive beam pair. When there is interference or the interference exceeds the preset threshold, it can be called an interference beam pair.

For example, the gNB1 DL transmits four beams, which are TX beam 1, TX beam 2, TX beam 3, and TX beam 4, respectively. gNB1 transmits reference signals in the four beams, and gNB2 receives four beams, which are respectively received. (RX) beam 1, RX beam 2, RX beam 3, RX beam 4. Based on each beam reference signal configuration indicated by gNB1, gNB2 receives the reference signal in each received directional beam and performs the measurement. So a 4*4 matrix will be formed:

[TX beam 1-RX beam 1, TX beam 1-RX beam 2, TX beam 1-RX beam 3, TX beam 1-RX beam 4;

TX beam 2-RX beam 1, TX beam 2-RX beam 2, TX beam 2-RX beam 3, TX beam 2-RX beam 4;

TX beam 3-RX beam 1, TX beam 3-RX beam 2, TX beam 3-RX beam 3, TX beam 3-RX beam 4;

TX beam 4-RX beam 1, TX beam 4-RX beam 2, TX beam 4-RX beam 3, TX beam 4-RX beam 4]

Each value in the matrix is a transmit receive beam pair. The interfered gNB obtains the channel/interference matrix corresponding to each beam pair, and then feeds back each beam pair sequence number and corresponding channel/interference condition to gNB1. Optionally, only one or several beam pair numbers, or interference beam numbers and/or corresponding channel/interference conditions that have the greatest interference to themselves are sent to gNB1.

Here, it is assumed that the cross-link interference relationship between gNB1 DL and gNB2 UL is that TX beam 1 of gNB1 has the greatest influence on RX beam 1 reception of gNB2. gNB1 TX Beam 1 and gNB2 RX Beam 1 form an interference beam pair. gNB2 transmits the sequence number (and/or channel condition) of the TX beam 1-RX beam 1 interference beam pair, or only the interference beam number TX beam 1 (and/or channel condition) to gNB1.

The other process is similar to the first example. The interference gNB and the interfered gNB need to exchange at least one of the following information through a backhaul link (such as an X2 interface) or an air interface (such as OTA signaling): reference signal transmission configuration information, gNB Measure configuration information. Optionally, on the basis of the first example, the reference signal sending configuration information further includes sending a beam sequence (beam ID) of the gNB (interference gNB), or a beam sequence number and a corresponding reference signal sending configuration information.

The interfered gNB indicates the measurement result information to the interference gNB. Optionally, on the basis of the first example, the measurement result information further includes a beam sequence number/beam pair number and corresponding measurement result information, or one or more beam sequence/beam pairs that are interfered by the gNB to maximize interference to itself. The serial number is fed back to the interference gNB.

Step 2: According to the interference beam pair sequence number and/or the corresponding channel/interference condition determined in step 1, the interfering base station and the victim base station perform cross-link interference coordination.

Limit or co-ordinate downlink/uplink transmission in gNB1 TX beam 1 and gNB2 RX beam 1 Tune, including at least one of the following:

b. Interference gNB When scheduling DL transmission, the target downlink signal/channel is mapped in the null space of the interference channel. The interference channel may be measured by the interfered gNB receiving the RS transmitted in the TX beam 1 through the RX beam 1 and then fed back to the interference gNB; or the RS is transmitted by the interfered gNB, the interference gNB measures a channel, and then according to the channel mutual The interference matrix is obtained by the opposite sex;

c. Decrease the DL power in TX beam 1. Reduce UL interference to gNB2.

d. Receive the scheduling or transmission information of gNB2 in RX beam 1 aligned with the DL/UL transmission direction of gNB2. When gNB2 transmits DL in RX beam 1, gNB1 will transmit DL in TX beam 1. When gNB2 schedules UL in RX Beam 1, gNB1 can only schedule UL in TX Beam 1. Here the TX beam/RX beam does not represent the transmit and receive directions. Only the lobe width or the angle at which the lobes are deployed.

When e.gNB1 has downlink transmission in TX beam 1, it notifies gNB2 that gNB2 does not schedule uplink transmission in RX beam 1.

f. Priority can be set, DL in gNB1 TX beam 1 is high priority; or UL of gNB2 in RX beam 1 is high priority. For example, when TX beam 1 has a higher priority, when there is a DL in gNB1 TX beam 1, the UL of gNB2 in RX beam 1 cannot be transmitted/received, or is normally transmitted and received (but at this time, DL is facing its own UL). interference). Conversely, when there is a UL in gNB2 RX beam 1, the DL of gNB1 in TX beam 1 cannot be transmitted.

g. DL transmission is configured in this TX beam 1 with a longer period/interval. For example, use TDD Configuration 0.

i. Interfering gNB When scheduling UL transmission, if there is interference between the gNB and the UL reception in the RX beam 1 at this time, one of the following methods may be adopted: the UE UL transmission under the interfered gNB may raise the power, delay Send, change MCS, change transmit carrier, cancel send, etc. and / or,

Interference gNB When scheduling DL transmission, if there is interference between the gNB TX beam 1 and the interfered gNB RX beam 1UL received at this time, one of the following methods may be adopted: DL transmission of the interference gNB may reduce power, delay transmission, Change the MCS, change the transmit carrier, cancel the transmission, and so on.

Ninth example:

The measuring base station notifies the monitoring UE of the measurement resource or the measurement pattern when performing the cross-link interference measurement. If the subordinate UE has an uplink transmission, a rate matching operation may be performed, such as resource puncturing, or no uplink signal or data is mapped on these measurement resources or measurement patterns. So as not to affect the measurement of the base station measurement.

For example, CSI-RS is used for cross-link interference measurements, such as CSI measurements or RRM measurements. Before the measurement base station performs interference measurement on the ZP CSI-RS (Zero-Power CSI-RS), the ZP CSI-RS resource configuration or pattern needs to be notified to the UE. When the UE transmits the UL, the UL signal or data is not mapped on the ZP CSI-RS resource or pattern, or the resource puncturing operation is performed.

Tenth example:

The measuring UE performs a rate matching operation on the UE measurement resource or measurement pattern when performing cross-link interference measurement, such as resource puncturing, or does not map downlink signals or data on the measurement resources or measurement patterns.

For example, SRS is used for cross-link interference measurements, such as CSI measurements or RRM measurements. The base station to which the UE belongs is measured to not map DL signals or data on the ZP SRS (Zero-Power SRS), or perform a puncturing operation.

Eleventh example:

The sender will perceive or measure, and there will be hidden node problems. For example, the sender performs sensing or measurement. As a result, there is no cross-link interference, but once transmitted, there is strong cross-link interference on the receiving side, which will affect performance.

The solution is to perform cross-link interference sensing or measurement by the receiving end. If the receiving end is a UE, The UE performs cross-link interference sensing or measurement, and reports the result to the gNB. If the receiving end is a gNB, the gNB adjusts the scheduling, or resource allocation, or performs an interference cancellation/coordination mechanism according to the result.

Twelfth example:

As analyzed above, dynamic TDD (also known as flexible duplex, duplex flexibility, full duplex, etc.) has cross-link interference problems. Cross-link interference can be solved by an interference cancellation mechanism such as measurement sensing, cooperative beamforming/cooperative scheduling, and orthogonal uplink and downlink signal design. However, due to the timing deviation problem existing across the link, there is a timing misalignment problem between the target UL/DL receiving and the interfering DL/UL cross-link, which causes the robustness of the interference coordination mechanism to decrease, thereby affecting the dynamic TDD and the like. Performance.

The solution is as follows:

Introducing a new measure: cross-link timing offset for timing offset measurements across links.

Optionally, the base station obtains a cross-link timing offset from the neighbor base station by measuring the cross-link timing offset. And/or, the UE obtains a cross-link timing offset with the neighbor UE by measuring the cross-link timing offset.

Optionally, a new timing advance signaling word: cross-link timing-timing advance (CLI-TA) is introduced to carry information across the link timing offset to perform cross-link Timing alignment to solve the problem of cross-link synchronization. The base station instructs the UE to adjust the uplink transmission timing through the CLI-TA, or the base station adjusts its downlink transmission timing according to the CLI-TA.

Optionally, for cross-link timing offset measurements on the UE side:

This problem can be solved by one of the following steps, or a combination of multiple steps.

Step 1: The base station configures and/or instructs the UE to perform cross-link timing offset measurement.

The information configuring/instructing the UE to perform cross-link timing offset measurements may be carried by RRC signaling, or DCI, or MAC RE. The UE is preferably instructed to perform cross-link timing offset measurements by RRC signaling or DCI.

For example, the UE may be instructed to perform periodic measurements by RRC signaling. Alternatively, the UE may be instructed by the DCI to perform aperiodic measurements.

The configuration may include a subframe configuration, or a time slot configuration, or a time-frequency resource configuration, or a pattern configuration, or a cycle/offset/duration, etc., across the link timing offset measurements.

Preferably, the base station can configure the UE to perform cross-link timing offset measurement simultaneously when performing CLI RRM or CLI CSI measurement. For example, the UE performs cross-link timing offset measurement on the ZP-SRS resource. The neighboring UE transmits an SRS on the ZP-SRS resource of the UE.

The cross-link timing deviation variation on the UE side is more severe than that on the base station side. Therefore, the interval between the two-span cross-link timing offset measurement on the UE side is shorter than the cross-link timing offset measurement on the base station side or the timing measurement in the conventional LTE. Therefore, short-period cross-link timing offset measurements, or aperiodic cross-link timing offset measurements can be configured.

Specifically, the base station dynamically instructs the specific UE to perform cross-link interference measurement according to the location of the UE in the cell and/or the UE receiving performance such as BLER/SINR/CLI/RRM/CSI. For example, especially for cell edge UEs, or UEs with large CLI interference, the base station should instruct it to perform cross-link timing offset measurements. For cell center UEs, there may be no indication, or a longer period indicates a cross-link timing offset measurement.

Step 2: The UE performs cross-link timing offset measurement, and reports the measurement result of the cross-link timing offset to the base station.

The UE performs cross-link timing offset measurement with the neighbor UE according to the cross-link timing offset measurement configuration or indication of the base station.

Preferably, the UE can perform cross-link timing offset measurement simultaneously when performing CLI RRM or CLI CSI measurement. For example, the UE performs cross-link timing offset measurement on the ZP-SRS resource. The neighboring UE transmits an SRS on the ZP-SRS resource of the UE.

The UE reports the measurement result of the cross-link timing offset to the base station, and can report the following: an exact value, a multiple of the basic time unit, and a multiple of the basic time unit multiple (for example, X, The unit is 16Ts. Ts is the basic time unit), the quantization level of the cross-link timing offset.

Step 3: The base station generates a cross-link synchronization operation policy according to the cross-link timing deviation measurement result reported by the UE. For example: performing cross-link timing alignment, or not adjusting cross-link timing alignment. Optionally, the following operations are performed:

Solution 1: The base station adjusts its own DL timing according to the cross-link timing offset measurement result. For example, the downlink transmission timing for the UE may be advanced in advance.

Solution 2: The base station notifies the base station of the neighboring UE of the cross-link timing offset measurement result.

For the second solution, the notification mode may be a backhaul (such as an X2 interface or a private interface) or an air interface (such as OTA signaling). The cross-link timing offset measurement result can be notified to the neighboring base station by the following form: exact value, multiple of the basic time unit, multiple of the basic time unit multiple (eg, X, unit is 16Ts. Ts is the basic time unit), cross-link timing The quantified level of the deviation.

For the second solution, the base station of the neighboring UE generates a cross-link timing advance command CLI-TA, and notifies the neighboring UE. For example via DCI or MAC CE. Preferably, the cross-link timing advance command CLI-TA is carried by the MAC CE. Optionally, the neighboring UE adjusts its own uplink sending timing according to the received CLI-TA.

Optionally, for cross-link timing offset measurements on the base station side:

Step 1: Configure the base station to perform cross-link timing offset measurement.

Preferably, the base station can simultaneously perform cross-link timing offset measurement when performing CLI RRM or CLI CSI measurement. For example, the base station performs cross-link timing offset measurements on the ZP-CSI-RS resources. The neighbor base station transmits a CSI-RS on the ZP-CSI-RS resource of the base station. Or, the base station is connected When the neighboring base station transmits the CSI-RS, it performs cross-link timing offset measurement, and does not require the local base station to configure ZP CSI-RS resources.

The cross-link timing offset measurement performed by the base station with the neighbor base station may be periodic or non-periodic.

Since the positions of the two base stations are fixed, the variation of the cross-link timing deviation on the base station side is more stable than that on the UE side. Therefore, the interval between the two cross-link timing offset measurements on the base station side is longer than the cross-link timing offset measurement on the UE side. Therefore, long-period cross-link timing offset measurements can be configured, or aperiodic cross-link timing offset measurements can be triggered for a longer period of time.

In particular, the base station dynamically triggers cross-link interference measurements based on UL reception performance such as BLER/SINR/CLI/RRM/CSI. For example, the base station UL receiving performance is poor, or the CLI interference is large, exceeding a set threshold, and the base station triggers performing aperiodic cross-link timing offset measurement.

Step 2: The base station cross-link timing deviation measurement result generates a cross-link synchronization operation strategy. For example: performing cross-link timing alignment, or not adjusting cross-link timing alignment. Optionally, the following operations are performed:

Solution 1: The base station generates a cross-link timing advance command CLI-TA according to the cross-link timing offset measurement result, and notifies the UE to the UE. For example via DCI or MAC CE. Preferably, the cross-link timing advance command CLI-TA is carried by the MAC CE. Optionally, the UE adjusts its own uplink sending timing according to the received CLI-TA. For example, the delay is transmitted across the link timing offset by a time unit.

Solution 2: The base station notifies the neighboring base station of the cross-link timing offset measurement result.

For solution 2, optionally, the neighboring base station adjusts its downlink transmission timing according to the received cross-link timing deviation result. For example, the downlink transmission timing may be delayed by the cross-link timing by a time unit.

In an embodiment or example of the invention, the timing offset measurement can be understood as a measure of the severity of the out-of-synchronization between two communication nodes. The embodiment of the invention further provides a computer readable storage medium, which stores computer executable instructions, which can be used by a computer to perform an interference measurement method provided by any one of the above technical solutions, or one or more of the foregoing The timing deviation measurement method provided by the scheme.

The computer storage medium, a removable storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. Selected as a non-transient storage medium.

The communication interface is configured to send and receive information;

The memory is configured to store information;

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be through some connection. The indirect coupling or communication connection of a port, device or unit may be electrical, mechanical or other form.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The steps of the above method embodiments are included.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Industrial applicability

In the embodiment of the present invention, the communication terminal can exchange the configuration information of the reference signal, and the communication device that performs the measurement performs measurement according to the received transmission configuration information, thereby obtaining interference measurement across the link, thereby facilitating interference coordination of subsequent cross-links; It reduces cross-link interference, improves communication quality, and has the characteristics of simple implementation and wide application in industry.

Claims

An interference measurement method, including:

The first communication device acquires first sending configuration information, where the first sending configuration information is configuration information that the second communications device sends the first reference signal; if the second communications device is the first base station, the first communications The device is a second base station or a user equipment UE connected to a cell formed by the second base station; if the second communication device is a first UE, the first communication device is a second UE or the first a neighboring base station of a base station to which the UE is connected;

And measuring the first reference signal according to the first sending configuration information to form a first measurement result.
The method of claim 1 wherein the method further comprises:

Obtaining first measurement configuration information before performing measurement on the first reference signal;

Transmitting the first measurement configuration information to the third communication device, or performing resource scheduling according to the first measurement configuration information;

The first measurement configuration information includes at least: first silence configuration information; the first quiet configuration information is used to indicate that the third communication device is prohibited from transmitting a predetermined time-frequency resource, and the third communication device includes At least one of the following: the second communication device, a neighboring device of the first communication device, and a communication device to which the first communication device is connected.
The method of claim 2, wherein

The first measurement configuration information further includes at least one of the following:

Measuring object information for indicating a measured channel, a cell, and/or the second communication device;

Measuring subframe information, used to indicate a measurement subframe;

Measuring time slot information for indicating a measurement time slot;

Measuring period information for indicating a measurement period;

Measuring offset information for indicating a measurement time offset and/or a frequency offset;

Measuring duration information for indicating the duration of a measurement;

The measurement pattern information is used to indicate the time and/or frequency resource at which the measurement is taken.
The method of claim 2, wherein

The first silent configuration information includes at least one of the following:

Silent subframe information, used to indicate a silent subframe in which a signal is prohibited from being transmitted;

Silent time slot information, used to indicate a silent time slot for which transmission of a signal is prohibited;

Silent time-frequency pattern information for indicating time-frequency resources for which transmission of signals is prohibited;

Quiet port information, used to indicate the port that is prohibited from sending signals;

Transmit power information indicating that the transmit power of the transmitted signal is zero.
The method according to any one of claims 1 to 4, wherein

The first sending configuration information includes at least one of the following:

Transmitting subframe information, configured to indicate a sending subframe of the first reference signal;

Transmitting time slot information, used to indicate a sending time slot of the first reference signal;

Transmitting period information, configured to indicate a sending period of the first reference signal;

Transmitting offset information, used to indicate an offset of the first reference signal in a time domain and/or a frequency domain;

Transmitting port information, indicating a port of the first reference signal;

Sending pattern information, indicating time-frequency resources for transmitting the first reference signal;

The second silent configuration information is used to indicate a predetermined time-frequency resource that the third communications device sends a signal, and/or a basis for generating the first silent configuration information for the first communications device.
The method according to any one of claims 1 to 4, wherein

The method further includes:

Performing interference coordination across links according to the first measurement result;

or,

Returning the first measurement result to the second communication device, wherein the first measurement As a result, the second communication device is configured to perform interference coordination of the cross-link.
The method according to any one of claims 1 to 4, wherein

The first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

The method further includes:

A second measurement result of the second channel from the first communication device to the second communication device is obtained based on channel reciprocity and the first measurement result.
The method according to any one of claims 1 to 4, wherein

The first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

Transmitting, by the first communications device, second sending configuration information to the second communications device;

Transmitting a second reference signal based on the second transmission configuration information, wherein the second reference signal is used to form a second measurement result from the first communication device to the second communication device.
The method according to any one of claims 1 to 4, wherein

The measuring, according to the first sending configuration information, the first reference signal to form a first measurement result, including:

When performing statistical cross-link interference measurement, measuring the first reference signal to obtain a wireless signal management RRM measurement result and/or channel measurement result and/or interference condition information;

When the instantaneous cross-link interference measurement is performed, the first reference signal is measured to obtain an interference source and/or interference direction and/or channel state information result and/or interference condition information.
The method according to any one of claims 1 to 4, wherein

The measuring, according to the first sending configuration information, the first reference signal to form a first measurement result, including:

And if the first reference signal is sent by using a beam, identifying the beam to obtain beam identification information; wherein the beam identification information is a component of the first measurement result.
The method according to any one of claims 1 to 4, wherein

The first measurement result is used to compare with a comparison threshold to form a comparison result;

The comparison result is used to determine whether the cross-link interference and/or the cross-link interference level exists.
The method according to any one of claims 1 to 4, wherein

If the first communication device is an interference device, the second communication device is a victim device;

If the first communication device is a victim device, the first communication device is an interference device.
An interference measurement method, including:

Obtaining, by the second communications device, first sending configuration information of the first reference signal; wherein, if the second communications device is the first base station, the first communications device is a second base station or a cell connected to the second base station If the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

And transmitting, by the first sending configuration information, the first reference signal, where the first reference signal is used by the first communications device to form a first measurement result.
The method of claim 13 wherein the method further comprises:

Receiving, by the first communication device, first measurement configuration information; the first measurement configuration information at least: first silence configuration information;

And, according to the first silent configuration information, an operation of shielding a neighboring device of the first communication device to transmit a signal at a predetermined time-frequency resource.
The method according to claim 13 or 14, wherein

The first sending configuration information includes at least one of the following:

Transmitting subframe information, configured to indicate a sending subframe of the first reference signal;

Transmitting time slot information, used to indicate a sending time slot of the first reference signal;

Transmitting period information, configured to indicate a sending period of the first reference signal;

Transmitting offset information, used to indicate an offset of the first reference signal in a time domain and/or a frequency domain the amount;

Transmitting port information, indicating a port of the first reference signal;

Sending pattern information, indicating time-frequency resources for transmitting the first reference signal;

The second silent configuration information is used to indicate a predetermined time-frequency resource that the third communications device sends a signal, and/or a basis for generating the first silent configuration information for the first communications device.
The method according to claim 13 or 14, wherein

The method further includes:

Receiving the first measurement result;

According to the first measurement result, interference coordination across links is performed.
The method of claim 16 wherein

The first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

The method further includes:

A second measurement result of the second channel from the first communication device to the second communication device is obtained based on channel reciprocity and the first measurement result.
The method of claim 16 wherein

The first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

The method further includes:

Receiving second sending configuration information sent by the first communications device;

And measuring the second reference signal according to the second sending configuration information.
An interference measuring device is applied to the first communications device, including:

The first receiving unit is configured to receive the first sending configuration information, where the first sending configuration information is configuration information that the second communications device sends the first reference signal; if the second communications device is the first base station, The first communication device is formed by the second base station or connected to the second base station The user equipment UE in the cell; if the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

The first measurement unit is configured to perform measurement on the first reference signal to form a first measurement result according to the first transmission configuration information.
The device of claim 19, wherein the device further comprises:

An acquiring unit, configured to acquire first measurement configuration information before performing measurement on the first reference signal;

a first sending unit, configured to send the first measurement configuration information to the third communications device, or

a scheduling unit, configured to perform resource scheduling according to the first measurement configuration information, where the first measurement configuration information includes at least: first silent configuration information, where the first silent configuration information is used to indicate that the third communication device is prohibited A predetermined time-frequency resource for transmitting a signal, the third communication device comprising: a neighboring device of the first communication device and a communication device to which the first communication device is connected.
The device according to claim 20, wherein

The first measurement configuration information further includes at least one of the following:

Measuring object information for indicating a measured channel, a cell, and/or the second communication device;

Measuring subframe information, used to indicate a measurement subframe;

Measuring time slot information for indicating a measurement time slot;

Measuring period information for indicating a measurement period;

Measuring offset information for indicating a measurement time offset and/or a frequency offset;

Measuring duration information for indicating the duration of a measurement;

The measurement pattern information is used to indicate the time and/or frequency resource at which the measurement is taken.
The device according to claim 20, wherein

The first silent configuration information includes at least one of the following:

Silent subframe information, used to indicate a silent subframe in which a signal is prohibited from being transmitted;

Silent slot information, used to indicate a silent slot that is prohibited from transmitting signals

Silent time-frequency pattern information for indicating time-frequency resources for which transmission of signals is prohibited;

Quiet port information, used to indicate the port that is prohibited from sending signals;

Transmit power information indicating that the transmit power of the transmitted signal is zero.
A device according to any one of claims 19 to 22, wherein

The first sending configuration information includes at least one of the following:

Transmitting subframe information, configured to indicate a sending subframe of the first reference signal;

Transmitting time slot information, used to indicate a sending time slot of the first reference signal;

Transmitting period information, configured to indicate a sending period of the first reference signal;

Transmitting offset information, used to indicate an offset of the first reference signal in a time domain and/or a frequency domain;

Transmitting port information, indicating a port of the first reference signal;

Sending pattern information, indicating time-frequency resources for transmitting the first reference signal;

The second silent configuration information is used to indicate a predetermined time-frequency resource that the third communications device sends a signal, and/or a basis for generating the first silent configuration information for the first communications device.
A device according to any one of claims 19 to 22, wherein

The device also includes:

a first coordination unit, configured to perform interference coordination across links according to the first measurement result;

or,

a first sending unit, configured to return the first measurement result to the second communications device, where the first measurement result is used by the second communications device to perform interference coordination of the cross-link.
A device according to any one of claims 19 to 22, wherein

The first measurement result is a first from the second communication device to the first communication device Interference measurement of the channel;

The first measurement unit is further configured to obtain a second measurement result of the second channel from the first communication device to the second communication device based on channel reciprocity and the first measurement result;

Or the device further includes:

a first sending unit, configured to send second sending configuration information to the second communications device; and send a second reference signal based on the second sending configuration information, where the second reference signal is used to form from the a second measurement result of the first communication device to the second communication device.
A device according to any one of claims 19 to 22, wherein

The first measurement unit is configured to: when performing statistical cross-link interference measurement, measure the first reference signal, obtain a radio signal management RRM measurement result, and/or channel measurement result and/or interference status information; In the case of instantaneous cross-link interference measurement, the first reference signal is measured to obtain an interference source and/or interference direction and/or channel state information result and/or interference condition information.
A device according to any one of claims 19 to 22, wherein

The first measurement unit is configured to: if the first reference signal is sent by using a beam, identify the beam to obtain beam identification information; wherein the beam identification information is a component of the first measurement result.
A device according to any one of claims 19 to 22, wherein

The first measurement result is configured to be compared with a comparison threshold to form a comparison result;

The comparison result is configured to determine whether the cross-link interference and/or the cross-link interference level exists.
A device according to any one of claims 19 to 22, wherein

If the first communication device is an interference device, the second communication device is a victim device;

If the first communication device is a victim device, the first communication device is an interference device.
An interference measuring device is applied to the second communication device, including:

a second forming unit, configured to acquire first sending configuration information of the first reference signal, where the first communications device is the second base station or connected to the second base station if the second communications device is the first base station a user equipment UE in the formed cell; if the second communication device is the first UE, the first communication device is a second UE or a neighboring base station of the base station to which the first UE is connected;

The second sending unit is further configured to send the first reference signal according to the first sending configuration information, where the first reference signal is used by the first communications device to form a first measurement result.
The device of claim 30, wherein the device further comprises:

a second receiving unit, configured to receive first measurement configuration information that is sent by the second communications device, where the first measurement configuration information includes: at least: first silent configuration information;

And an execution unit, configured to block, according to the first silent configuration information, an operation of the neighboring device of the first communications device to send a signal at a predetermined time-frequency resource.
The device according to claim 30 or 31, wherein

The first sending configuration information includes at least one of the following:

Transmitting subframe information, configured to indicate a sending subframe of the first reference signal;

Transmitting time slot information, used to indicate a sending time slot of the first reference signal;

Transmitting period information, configured to indicate a sending period of the first reference signal;

Transmitting offset information, used to indicate an offset of the first reference signal in a time domain and/or a frequency domain;

Transmitting port information, indicating a port of the first reference signal;

Sending pattern information, indicating time-frequency resources for transmitting the first reference signal;

The second silent configuration information is used to indicate a predetermined time-frequency resource that the third communications device sends a signal, and/or a basis for generating the first silent configuration information for the first communications device.
The device according to claim 30 or 32, wherein

The device also includes:

a second receiving unit, configured to receive the first measurement result;

The second coordination unit is configured to perform interference coordination across links according to the first measurement result.
The device according to claim 33, wherein

The first measurement result is an interference measurement from the second communication device to a first channel of the first communication device;

The device also includes:

a second measurement unit configured to obtain a second measurement result of the second channel from the first communication device to the second communication device based on channel reciprocity and the first measurement result; or Decoding second transmission configuration information sent by the first communication device;

The second sending unit is configured to measure the second reference signal according to the second sending configuration information.
A timing deviation measuring method, comprising:

The base station configures the configuration information of the user terminal UE to perform timing offset measurement across the link;

Sending the configuration information to the UE, where the configuration information is used to trigger the UE to perform timing offset measurement across links;

Receiving a measurement result of the timing deviation measurement reported by the UE.
A timing deviation measuring method, comprising:

The user terminal UE receives configuration information sent by the base station;

Performing a measurement of the timing deviation across the link according to the configuration information, and obtaining a measurement result;

The measurement result is reported to the base station.

The UE reports the timing deviation measurement result of the cross-link cross link to the base station.
A timing deviation measuring method, comprising:

The base station configures configuration information for performing timing offset measurement across links.

The base station performs timing offset measurement across the link based on the configuration information.
A communication device, comprising: a communication interface, a memory, and a processor;

The communication interface is configured to send and receive information;

The memory is configured to store information;

The processor, coupled to the communication interface and the memory, respectively, configured to implement any one of claims 1 to 12 or claims 13 to 18 by executing computer executable code stored on the memory The interference measurement method, or the timing deviation measurement method provided in claim 35, 36 or 37.
A computer storage medium having stored therein computer executable instructions for performing the interference measurement method of any one of claims 1 to 12 or any of claims 13 to 18, or The timing deviation measuring method provided in claim 35, 36 or 37 is performed.