WO2023109578A1

WO2023109578A1 - Interference measurement method and apparatus, and device

Info

Publication number: WO2023109578A1
Application number: PCT/CN2022/136888
Authority: WO
Inventors: 陈晓航
Original assignee: 维沃移动通信有限公司
Priority date: 2021-12-13
Filing date: 2022-12-06
Publication date: 2023-06-22
Also published as: CN116264499A

Abstract

The present application belongs to the technical field of communications. Disclosed are an interference measurement method and apparatus, and a device. The interference measurement method in the embodiments of the present application comprises: a first network side device performing, on at least one sub-band of a first resource, interference measurement on the basis of a reference signal, wherein the reference signal is sent by a second network side device, and the first resource comprises a transmission resource of the reference signal.

Description

Interference measurement method, device and equipment

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202111523202.0 filed in China on December 13, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the technical field of communications, and in particular relates to an interference measurement method, device and equipment.

Background technique

When the network deploys different base stations with different Time Division Duplexing (TDD) configurations, different base stations may be in the downlink (DL) transmission or uplink (UL) reception state at the same time. At this time, the base station performing DL transmission will generate cross link interference to the base station performing UL reception. For example, as shown in Figure 1, at time T1, the network side device 15 (base station) sends downlink information to the terminal 12 through subband (subband) 1, and receives the uplink information of the terminal 11 through subband3; and the network side device 16 through subband3 Send downlink information to terminal 14, and receive uplink information from terminal 13 through subband1. Therefore, on subband 1, the DL transmission of the network-side device 15 will cause cross link interference to the UL reception of the network-side device 16. Similarly, on subband 3, the DL transmission of the network-side device 16 will cause cross link interference to the UL reception of the network-side device 15. cross link interference.

However, the existing mechanism is to exchange some information between base stations, such as TDD configuration information, to avoid cross link interference that may exist between different base stations. However, such information is usually static information, and cannot reflect the transmission status on different frequency bands, so the impact of interference cannot be effectively reduced.

Contents of the invention

Embodiments of the present application provide an interference measurement method, device, and equipment, which can learn about interference between network-side devices in a timely manner, and ensure transmission performance.

In the first aspect, an interference measurement method is provided, including:

The first network side device performs interference measurement based on a reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.

In a second aspect, an interference measurement device is provided, including:

A processing module, configured to perform interference measurement based on a reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.

In a third aspect, an interference measurement method is provided, including:

the second network side device sends a reference signal to the first network side device;

Wherein, the reference signal is used for interference measurement by the first network side device on at least one subband of the first resource;

The first resource includes a transmission resource of the reference signal.

In a fourth aspect, an interference measurement device is provided, including:

a second sending module, configured to send a reference signal to the first network side device;

The first resource includes a transmission resource of the reference signal.

In a fifth aspect, a network-side device is provided, the network-side device includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When realizing the steps of the method described in the first aspect or the third aspect.

In a sixth aspect, a network side device is provided, including a processor and a communication interface, where the processor is configured to perform interference measurement based on a reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.

In a seventh aspect, a network-side device is provided, including a processor and a communication interface, where the communication interface is used to send a reference signal to the first network-side device;

The first resource includes a transmission resource of the reference signal.

In an eighth aspect, an interference measurement system is provided, including: a first network-side device and a second network-side device, the first network-side device can be used to perform the steps of the interference measurement method according to the first aspect, the The second network side device may be used to execute the steps of the interference measurement method as described in the third aspect.

In the ninth aspect, a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the third aspect.

In a tenth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect , or implement the method described in the third aspect.

In an eleventh aspect, a computer program product is provided, the computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in The steps of the method described in the third aspect.

In a twelfth aspect, a communication device is provided, configured to implement the method described in the first aspect, or implement the steps in the method described in the third aspect.

In this embodiment of the present application, the first network-side device can complete interference measurement on at least one subband of the first resource including the transmission resource of the reference signal for the reference signal sent by the second network-side device, so as to know the difference in time. The transmission status on the frequency band reduces the impact of interference between full-duplex (full duplex) network-side devices and ensures transmission performance.

Description of drawings

1 is a block diagram of a wireless communication system;

FIG. 2 is a schematic flowchart of an interference measurement method according to an embodiment of the present application;

FIG. 3 is a schematic flowchart of an interference measurement method according to another embodiment of the present application;

FIG. 4 is a block diagram of an interference measurement device according to an embodiment of the present application;

FIG. 5 is a block diagram of an interference measurement device according to another embodiment of the present application;

FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present application;

Fig. 7 is a schematic structural diagram of a network side device according to another embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency Division Multiple Access (Single-carrier Frequency Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6th Generation , 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal 11 , a terminal 12 , a terminal 13 , and a terminal 14 , as well as a network-side device 15 and a network-side device 16 . Wherein, taking the terminal 11 as an example, the terminal can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook , ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robots, wearable Equipment (Wearable Device), vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles , personal computer (personal computer, PC), teller machine or self-service machine and other terminal-side devices, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 15 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless network. access network unit. The access network equipment may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc., and the base station may be called a node B, an evolved node B (eNB), an access network Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolution Type B node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in this application In the embodiment, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

The interference measurement method, device, and equipment provided by the embodiments of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

As shown in Figure 2, the interference measurement method of the embodiment of the present application includes:

Step 201, the first network side device performs interference measurement based on a reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.

In this way, the first network side device will be able to complete interference measurement for the reference signal sent by the second network side device on at least one subband of the first resource including the transmission resource of the reference signal, so as to keep abreast of transmissions on different frequency bands State, from the rear to reduce the impact of interference between devices on the full-duplex network side, to ensure transmission performance.

In this embodiment, the second network side device may be one or more network side devices, and the reference signal sent by the second network side device may also be one or more. That is, one or more network devices respectively send reference signals to the first network-side device, and the first network-side device may perform interference measurement based on the reference signals sent by corresponding network-side devices. Wherein, the second network side device transmits the reference signal through a Uu air interface.

Wherein, the first resource may be a time domain resource and/or a frequency domain resource. At least one subband of the first resource is a frequency domain subband.

Optionally, frequency domain subbands can be understood as resource blocks (Resource Block, RB), subbands (subband), and bandwidth parts (BandWidth Part, BWP).

It should be noted that the "transmission resources", "time domain resources", "frequency domain subbands", "frequency domain resources" mentioned in the embodiments of the present application may specifically be flexible duplex (flexible duplex) resources or full duplex resources. labor resources. For example, a certain part of time-domain resources or a part of frequency-domain bandwidth is used as flexible duplex resources or full-duplex resources, and the reference signal sent by the network device corresponds to this part of flexible duplex resources or full-duplex resources.

The flexible duplex resource or the full duplex resource may be a resource of TDD or frequency division duplex (Frequency Division Duplexing, FDD) spectrum, such as DL or UL or Flexible resource of TDD. In addition to flexible duplex resources or full duplex resources, other resources are not limited, such as half duplex resources, existing FDD or TDD frequency spectrum, and the like.

Optionally, the reference signal includes at least one of the following:

Channel State Information Reference Signal CSI-RS;

channel state information interference measurement signal CSI-IM;

demodulation reference signal DMRS;

Synchronization signal block SSB.

In this way, the reference signal used for interference measurement can be Channel State Information Reference Signal (CSI-RS); Channel State Information Interference Measurement Signal (CSI Interference Measurement, CSI-IM); Demodulation Reference Signal (Demodulation Reference Signal, DMRS); at least one of the Synchronization Signal and PBCH block (SSB).

Certainly, in order to realize more effective interference measurement, in this embodiment, it may be configured to perform interference measurement based only on a specific reference signal.

Optionally, the CSI-RS includes at least one of the following:

The CSI-RS corresponding to the target CSI-RS identifier;

CSI-RS corresponding to the first target time domain and/or frequency domain resources;

The CSI-RS corresponding to the first target network side device;

The CSI-RS corresponding to the first target port;

CSI-RS corresponding to the first target code division multiplexing (Code Division Multiplexing, CDM) group (group);

CSI-RS corresponding to the target CSI-RS type;

The CSI-RS corresponding to the precoding of the first target codebook;

CSI-RS corresponding to non-codebook precoding.

That is, the first network side device only performs interference measurement for a specific CSI-RS.

Wherein, the target CSI-RS identifier is one or more preset CSI-RS identifiers (IDs), such as preset CSI-RS ID1 and CSI-RS ID2, then the first network side device in at least one subset of the first resource On the band, the interference measurement is performed based on the CSI-RS corresponding to the CSI-RS ID1 and the CSI-RS ID2, and the interference measurement is not performed based on the CSI-RS with other CSI-RS IDs transmitted on the first resource.

Similarly, the first target time-domain and/or frequency-domain resources may be preset one or more time-domain resources, one or more frequency-domain resources, or one or more time-frequency resources; the first target network The side device is the measurement object of interference measurement, which is one or more preset network side devices; the first target port is one or more preset ports; the first target CDM group (group) is one or more preset CDM group; the target CSI-RS type is one or more preset CSI-RS types; the first target codebook is one or more preset codebooks.

Wherein, the CSI-RS type includes a first type used for CSI measurement and a second type used for beam (beam) measurement. Specifically, the first type of CSI-RS (CSI-RS for CSI (CSI-RS for CSI)) is used to measure the precoding matrix indicator (Precoding Matrix Indicator, PMI), rank indicator (Rank Indication, RI), channel Quality indicator (Channel Quality Indicator, CQI), layer indicator (Layer Indicator, LI). The second type of CSI-RS (CSI-RS for beam) is used to measure beam reference signal received power (Reference Signal Received Power, RSRP), signal to interference and noise ratio (Signal to Interference plus Noise Ratio, SINR), such as L1-RSRP, L1-SINR.

Optionally, the DMRS includes at least one of the following:

DMRS corresponding to the target physical downlink shared channel (Physical Downlink Shared Channel, PDSCH);

DMRS corresponding to the target physical downlink control channel (Physical Downlink Control Channel, PDCCH);

DMRS corresponding to the second target port;

DMRS corresponding to the second target CDM group;

The DMRS corresponding to the target DMRS sequence.

Wherein, the target PDSCH is one or more preset PDSCHs; the first PDCCH is one or more preset PDCCHs; the second target port is one or more preset ports, which can be the same as the first target port, or Can be different; the second target CDM group is one or more preset CDM groups, which can be the same as or different from the first target CDM group; the target DMRS sequence (sequence) is one or more preset DMRS sequences.

Optionally, the SSB includes at least one of the following:

Configured as SSB for interference measurements;

All SSBs actually transmitted;

M SSBs among all SSBs actually transmitted, wherein the second signal index of the M SSBs is the highest among all SSBs, and M is a positive integer.

Wherein, the SSBs configured for interference measurement are preset one or more SSBs; all the SSBs actually transmitted are the SSBs actually transmitted on the first resource; the M SSBs among all the SSBs actually transmitted are the SSBs on the first resource For the M SSBs that are actually transmitted and have the highest second signal index, the value of M can be preset. Here, the second signal index is an index such as RSRP or SINR of the SSB.

Optionally, the CSI-IM includes at least one of the following:

The CSI-IM corresponding to the target CSI-IM identifier;

CSI-IM corresponding to the second target time domain and/or frequency domain resources;

The CSI-IM corresponding to the second target network side device;

The CSI-IM corresponding to the third target port;

The CSI-IM corresponding to the third target CDM group;

CSI-IM corresponding to the target CSI-IM type;

The CSI-IM corresponding to the precoding of the second target codebook;

CSI-IM corresponding to non-codebook precoding.

Wherein, the target CSI-IM ID is one or more preset CSI-IM IDs; the second target time domain and/or frequency domain resource can be one or more preset time domain resources, one or more frequency domain resources The resources can also be one or more time-frequency resources, which can be the same as or different from the first target time-domain and/or frequency-domain resources; the second target network-side device, that is, the measurement object of the interference measurement, is a preset or multiple network-side devices, which may be the same as or different from the first target network-side device; the third target port is one or more preset ports, which may be the same as or different from the first port; the first target CDM group is one or more preset CDM groups, which can be the same as or different from the first target CDM group; the target CSI-IM type is one or more preset CSI-IM types; the second target codebook is the preset The set one or more codebooks may be the same as or different from the first target codebook.

In this way, in this embodiment, the first network side device may perform interference measurement based only on the one or more specific reference signals shown above on at least one subband of the first resource.

Of course, in this embodiment, a dedicated reference signal or sequence may also be set for interference measurement, which will not be repeated here.

In addition, optionally, in this embodiment, the first resource is a flexible duplex resource.

Here, the flexible duplex resource refers to that the frequency domain of the resource includes at least the uplink transmission subband and the downlink transmission subband for the first network side device and the second network side device, and may also include a flexible transmission subband (uplink transmission or subbands that can be transmitted downlink). Interference between the first network-side device and the second network-side device is likely to occur on the flexible duplex resource.

In addition, optionally, in this embodiment, before step 201, the method further includes:

The first network side device receives the transmission configuration information sent by the second network side device;

Wherein, the transmission configuration information is used to indicate the transmission format of the second network side device in the first resource.

Here, the transmission format is UL/DL configuration or frame format. Through this transmission format, you can know the subband configuration of the first resource, such as which subband is used for uplink transmission, which subband is used for downlink transmission, and which subband is used for flexible transmission; in addition, through this transmission format, you can also know the first resource. Time domain configuration of a resource, such as which time slots or symbols are used for uplink transmission, which time slots or symbols are used for downlink transmission, and which time slots or symbols are used for flexible transmission. In this way, the first network-side device can know the transmission format of the second network-side device on the first resource, so as to determine whether there is a transmission format conflict, determine whether interference measurement needs to be performed, and determine the first resource and/or the first resource for interference measurement or subband.

It should be understood that, in this embodiment, the interference measurement is performed on at least one subband of the first resource, and the at least one subband may be all subbands of the first resource, or may be one or part of the first resource Subband.

For example, the first network side device performs interference measurement on subbands containing reference signals and subbands without reference signals in the first resource.

Optionally, in this embodiment, the at least one subband is a preset subband.

In this way, the first network side device performs interference measurement on the preset subband of the first resource. Even if there is no conflict between the transmission format of the first network-side device and the transmission format of the second network-side device on the preset subband, interference measurement is still performed. Wherein, the preset subband may be one or more subbands of the first resource.

Here, the preset subband may be determined by the first network device receiving the configuration information of the second network device, or negotiated and agreed between the first network device and the second network device, or predefined.

Optionally, in this embodiment, the at least one subband is a subband in which a transmission format of the first network side device conflicts with a transmission format of the second network side device.

That is to say, the first network side device only performs interference measurement on the subband on the first resource that conflicts with the transmission format of the second network side device.

It should also be known that after the interference measurement, the first network-side device can generate a cross-link measurement report based on the measurement result, and then, the first network-side device sends the cross-link measurement report to the second network-side device, so that The second network-side device understands the transmission status on different frequency bands, and can subsequently cooperate with the first network-side device to perform interference removal processing to ensure transmission performance.

Optionally, in this embodiment, after step 201, the method further includes:

When the preset condition is met, the first network-side device sends a cross-link measurement report to the second network-side device;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

The first timer corresponding to the measurement report is in the running state or in the non-running state;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.

That is, the first network-side device sends a cross-link measurement report to the second network-side device when at least one trigger item is satisfied.

Wherein, the first signal indicator may be at least one of indicators such as RSRP and SINR, which will not be listed here.

Wherein, the sending cycle of the triggered measurement report may be the sending cycle of the triggered measurement report configured on the first network side device, or the sending cycle of the triggered measurement report configured on the second network side device, the first network side device and The second network side device may perform the interaction of respective sending periods. Moreover, the sending cycle of the triggered measurement report may be the same as the sending cycle of the reference signal.

Wherein, if the preset condition is that the first timer corresponding to the measurement report is in the running state, the first network side device sends the cross-link measurement report within the running time period of the first timer, and when the first timer is not running (timing The cross-link measurement report is not sent within the time period when the timer is timed out or not started or the timer is not configured; if the preset condition is that the first timer corresponding to the measurement report is not running, the first network side device will The cross-link measurement report is not sent during the running period of the timer, and the cross-link measurement report is sent during the time period when the first timer is not running (the timer expires or is not started or the timer is not configured). Here, the cross-link measurement report is sent during the non-running time period of the first timer, and a new timer (the third timer) can also be started based on other trigger items, and the cross-link measurement report is sent during the running time period Report. The first timer may also set a trigger condition, such as measuring that the third signal index (the index of the reference signal, such as RSRP or SINR, etc.) reaches a preset value. Moreover, sending the cross-link measurement report during the running time period of the first timer, or sending the cross-link measurement report during the non-running time period of the first timer, includes at least one of the following:

Send at least one cross-link measurement report within this time period, and if it is sent multiple times, it may be periodic or based on a predefined rule;

Interference measurements of a preset duration are performed within this time period, and a cross-link measurement report is sent after the preset duration ends. Here, the preset duration can be a continuous period of time, or a non-continuous duration determined based on predetermined rules.

Of course, the network configures different timers for reporting different reference signals or measurement types, and the duration of different timers may be different.

Wherein, for the case where the first network-side device receives a cross-link interference measurement indication, a cross-link measurement report, or a measurement report request and triggers sending a cross-link measurement report to the second network-side device, the cross-link interference measurement indication The cross-link measurement report or the measurement report request may be sent by the second network-side device, or may be sent by other network-side devices.

Optionally, the cross-link measurement report includes at least one of the following:

Layer 1 channel state information;

Layer 3 channel state information.

For example, the channel state information of layer 1 includes L1-SINR; the channel state information of layer 3 includes L3-SINR, RSRP, reference signal received quality (Reference Signal Received Quality, RSRQ), received signal strength indication (Received Signal Strength Indication, RSSI )wait.

Specifically, perform L3 filtering (filter), perform beam or beam group filtering, and obtain the signal-to-noise ratio SINR_filter(k) corresponding to the logo k, SINR_filter(k)=(1-alpha)*SINR_filter(k-1)+alpha* SINR_current; where alpha is the weighting factor, SINR_filter(k-1) is the signal-to-noise ratio corresponding to the identification k-1 (it can also be understood as the previous signal-to-noise ratio of SINR_filter(k)), and SINR_current is the current measurement signal-to-noise ratio.

Considering the timeliness of measurement, optionally, in this embodiment, step 201 includes:

The first network side device performs the interference measurement when the second timer is in the running state or in the non-running state according to the second timer corresponding to the measurement.

Here, the second timer is configured to enable the first network side device to perform interference measurement when the second timer is in the running state or in the non-running state. The second timer can also be triggered by setting a corresponding trigger condition, which will not be repeated here.

For the second network-side device, optionally, in this embodiment, the second network-side device includes at least one network-side device that has transmission interference with the first network-side device.

Optionally, the at least one network-side device includes N network-side devices, where N is a positive integer;

Wherein, the value of N is determined by at least one of the following:

default value;

The degree of interference with the first network side device.

That is to say, the first network-side device performs interference measurement on a number of network-side devices equal to the preset value among the network-side devices that have transmission interference with it, and at this time N=the preset value; or the first network-side The device performs interference measurement on N network-side devices whose interference level with the first network-side device is higher than that of the remaining network-side devices among the network-side devices that have transmission interference with it, where N is configured by the network.

Specifically, the first network device can configure the number or list of network-side devices that need to perform interference measurement for the network device that has transmission interference with it, so that the first network-side device performs interference measurement on all network-side devices in the list; A preset number (preset value) of network-side devices perform interference measurement; and N network nodes with the strongest interference in the list perform interference measurement.

In this embodiment, after the first network-side device sends the cross-link measurement report, it can perform interference coordination or interference avoidance processing, such as avoiding the use of resources with large interference; the second network-side device receives the first network-side device After the cross-link measurement report, interference coordination or interference avoidance processing can also be performed, such as avoiding the scheduling and use of resources that cause large interference to other network-side devices.

In this embodiment, the preset item may be pre-configured by the first network-side device or the second network-side device in addition to being pre-set through negotiation between the first network-side device and the second network-side device.

In the following, the application of the method in the embodiment of the present application will be described in combination with specific scenarios:

The network configuration has one or more flexible duplex resources (X-duplex resources), and each X-duplex resource is a continuous resource on the DL/UL bandwidth part (BandWidth Part, BWP).

Network node 1 (first network-side device) and network node 2 (second network-side device) can exchange transmission configuration information on X-duplex resources, such as UL/DL configuration or frame format (XD-SFI).

Network node 1 sends a cross-link measurement report to network node 2, which may be:

1) For an X-duplex resource, measure the reference signal of the network node 2 on all subbands, and send the measurement results of all subbands;

2) For a set of X-duplex resources, measure all subbands of each X-duplex resource, and send the measurement result of each X-duplex resource;

3) For an X-duplex resource, on the conflicting subband, the reference signal of the network node 2 is measured, and the measurement result of the subband is sent.

To sum up, in the method of the embodiment of this application, the first network side device will be able to complete the reference signal sent by the second network side device on at least one subband of the first resource including the transmission resource of the reference signal. Interference measurement can keep abreast of the transmission status on different frequency bands, thereby reducing the impact of interference between full-duplex network-side devices and ensuring transmission performance.

As shown in Figure 3, an interference measurement method in the embodiment of the present application includes:

Step 301, the second network side device sends a reference signal to the first network side device;

The first resource includes a transmission resource of the reference signal.

In this way, the second network-side device sends the reference signal, so that the first network-side device can complete interference measurement for the reference signal on at least one subband of the first resource including the transmission resource of the reference signal, and learn about different frequency bands in time The transmission status on the network can reduce the impact of interference between full-duplex network-side devices and ensure transmission performance.

Optionally, the reference signal includes at least one of the following:

Channel State Information Reference Signal CSI-RS;

channel state information interference measurement signal CSI-IM;

demodulation reference signal DMRS;

Synchronization signal block SSB.

Optionally, the first resource is a flexible duplex resource.

Optionally, the method also includes:

The second network-side device sends transmission configuration information to the first network-side device;

Optionally, after the second network side device sends the reference information to the first network side device, it further includes:

The second network-side device receives the cross-link measurement report sent by the first network-side device when a preset condition is met;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.

Layer 1 channel state information;

Layer 3 channel state information.

Optionally, the at least one subband is a preset subband.

Optionally, the at least one subband is a subband in which the transmission format of the first network side device conflicts with the transmission format of the second network side device.

Optionally, the CSI-RS includes at least one of the following:

The CSI-RS corresponding to the target CSI-RS identifier;

The CSI-RS corresponding to the first target network side device;

The CSI-RS corresponding to the first target port;

The CSI-RS corresponding to the first target CDM group;

CSI-RS corresponding to the target CSI-RS type;

The CSI-RS corresponding to the precoding of the first target codebook;

CSI-RS corresponding to non-codebook precoding.

Optionally, the DMRS includes at least one of the following:

DMRS corresponding to the target physical downlink shared channel PDSCH;

DMRS corresponding to the target physical downlink control channel PDCCH;

DMRS corresponding to the second target port;

DMRS corresponding to the second target CDM group;

The DMRS corresponding to the target DMRS sequence.

Optionally, the SSB includes at least one of the following:

Configured as SSB for interference measurements;

All SSBs actually transmitted;

Optionally, the CSI-IM includes at least one of the following:

The CSI-IM corresponding to the target CSI-IM identifier;

CSI-IM corresponding to the second target time domain and/or frequency domain resource;

The CSI-IM corresponding to the second target network side device;

The CSI-IM corresponding to the third target port;

The CSI-IM corresponding to the third target CDM group;

CSI-IM corresponding to the target CSI-IM type;

The CSI-IM corresponding to the precoding of the second target codebook;

CSI-IM corresponding to non-codebook precoding.

It should be noted that this method cooperates with the interference measurement method performed by the first network-side device to implement interference measurement. The implementation of the embodiment of the interference measurement method performed by the first network-side device is applicable to this method, and can also To achieve the same technical effect, no more details are given here.

The interference measurement method provided in the embodiment of the present application may be executed by an interference measurement device. In the embodiment of the present application, the interference measurement device provided in the embodiment of the present application is described by taking the interference measurement device performing the above interference measurement method as an example.

As shown in Figure 4, the interference measurement device of the embodiment of the present application includes:

A processing module 410, configured to perform interference measurement based on a reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.

Optionally, the reference signal includes at least one of the following:

Channel State Information Reference Signal CSI-RS;

channel state information interference measurement signal CSI-IM;

demodulation reference signal DMRS;

Synchronization signal block SSB.

Optionally, the first resource is a flexible duplex resource.

Optionally, the device also includes:

A first receiving module, configured to receive transmission configuration information sent by the second network side device;

Optionally, the at least one subband is a preset subband.

Optionally, the device also includes:

A first sending module, configured to send a cross-link measurement report to the second network side device when a preset condition is met;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.

The cross-link measurement report includes at least one of the following:

Layer 1 channel state information;

Layer 3 channel state information.

Optionally, the first network side device performs interference measurement based on a reference signal on at least one subband of the first resource, including:

Optionally, the second network-side device includes at least one network-side device that has transmission interference with the first network-side device.

Wherein, the value of N is determined by at least one of the following:

default value;

The degree of interference with the first network side device.

Optionally, the CSI-RS includes at least one of the following:

The CSI-RS corresponding to the target CSI-RS identifier;

The CSI-RS corresponding to the first target network side device;

The CSI-RS corresponding to the first target port;

The CSI-RS corresponding to the first target CDM group;

CSI-RS corresponding to the target CSI-RS type;

The CSI-RS corresponding to the precoding of the first target codebook;

CSI-RS corresponding to non-codebook precoding.

Optionally, the DMRS includes at least one of the following:

DMRS corresponding to the target physical downlink shared channel PDSCH;

DMRS corresponding to the target physical downlink control channel PDCCH;

DMRS corresponding to the second target port;

DMRS corresponding to the second target CDM group;

The DMRS corresponding to the target DMRS sequence.

Optionally, the SSB includes at least one of the following:

Configured as SSB for interference measurements;

All SSBs actually transmitted;

Optionally, the CSI-IM includes at least one of the following:

The CSI-IM corresponding to the target CSI-IM identifier;

The CSI-IM corresponding to the second target network side device;

The CSI-IM corresponding to the third target port;

The CSI-IM corresponding to the third target CDM group;

CSI-IM corresponding to the target CSI-IM type;

The CSI-IM corresponding to the precoding of the second target codebook;

CSI-IM corresponding to non-codebook precoding.

The device is capable of completing interference measurement on at least one subband of the first resource including the transmission resource of the reference signal sent by the second network side device, so as to know the transmission status on different frequency bands in time, and reduce the full The impact of interference between devices on the duplex network side ensures transmission performance.

It should be noted that this device is a device that applies the above-mentioned interference measurement method performed by the first network-side device, and can implement various processes implemented by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, here No longer.

As shown in Figure 5, the interference measurement device of another embodiment of the present application includes:

The second sending module 510 is configured to send a reference signal to the first network side device;

The first resource includes a transmission resource of the reference signal.

Optionally, the reference signal includes at least one of the following:

Channel State Information Reference Signal CSI-RS;

channel state information interference measurement signal CSI-IM;

demodulation reference signal DMRS;

Synchronization signal block SSB.

Optionally, the first resource is a flexible duplex resource.

Optionally, the device also includes:

A third sending module, configured to send transmission configuration information to the first network side device;

Wherein, the transmission configuration information is used to indicate the transmission format of the second network side device on the first resource.

Optionally, the device also includes:

The second receiving module is configured to receive the cross-link measurement report sent by the first network side device when the preset condition is met;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.

The apparatus sends a reference signal, so that the first network-side device can complete interference measurement on at least one subband of the first resource including the transmission resource of the reference signal for the reference signal, and learn about the transmission status on different frequency bands in time, From then on, the impact of interference between full-duplex network-side devices can be reduced, and the performance of transmission can be guaranteed.

It should be noted that this device is a device that applies the above-mentioned interference measurement method performed by the second network-side device, and can implement various processes implemented by the method embodiment in FIG. 3 and achieve the same technical effect. To avoid repetition, here No longer.

It should also be noted that the interference measurement apparatus in the embodiment of the present application may be a network side device, or may be a component of the network side device, such as an integrated circuit or a chip. The network side device may be a base station, or other devices other than the base station. Exemplarily, the base station may include but not limited to the types of base stations listed above, which are not specifically limited in this embodiment of the present application.

Optionally, as shown in FIG. 6 , this embodiment of the present application also provides a network side device 600, including a processor 601 and a memory 602, and the memory 602 stores programs or instructions that can run on the processor 601, For example, when the network-side device 600 is the first network-side device, when the program or instruction is executed by the processor 601, the various steps of the above embodiment of the interference measurement method performed by the first network-side device can be achieved, and the same technology can be achieved. Effect. When the network-side device 600 is the second network-side device, when the program or instruction is executed by the processor 601, each step of the above embodiment of the interference measurement method performed by the second network-side device is implemented, and the same technical effect can be achieved, To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, and the processor is used to perform interference measurement based on a reference signal on at least one subband of the first resource; wherein, the reference signal is the second network sent by the side device; the first resource includes a transmission resource of the reference signal. The communication interface is used for receiving the reference signal. This network-side device embodiment corresponds to the above-mentioned first network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiments can be applied to this network-side device embodiment, and can achieve the same technical effect.

The embodiment of the present application also provides a network-side device, including a processor and a communication interface, and the communication interface is used to send a reference signal to the first network-side device; wherein, the reference signal is used by the first network-side device Interference measurement on at least one subband of a resource; the first resource includes a transmission resource of the reference signal. This network-side device embodiment corresponds to the above-mentioned second network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiments can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 7 , the network side device 700 includes: an antenna 71 , a radio frequency device 72 , a baseband device 73 , a processor 74 and a memory 75 . The antenna 71 is connected to a radio frequency device 72 . In the uplink direction, the radio frequency device 72 receives information through the antenna 71, and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72 , and the radio frequency device 72 processes the received information and sends it out through the antenna 71 .

The method performed by the network side device in the above embodiments may be implemented in the baseband device 73, where the baseband device 73 includes a baseband processor.

The baseband device 73 can include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. The program executes the operations of the network side device shown in the above method embodiments.

The network side device may also include a network interface 76, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network-side device 700 in this embodiment of the present invention also includes: instructions or programs stored in the memory 75 and operable on the processor 74, and the processor 74 calls the instructions or programs in the memory 75 to execute the various programs shown in FIG. The methods executed by the modules, or the methods executed by the modules shown in Fig. 5, achieve the same technical effect, and are not repeated here to avoid repetition.

An embodiment of the present application also provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the above embodiment of the interference measurement method performed by the first network side device is implemented , or each process of the embodiment of the interference measurement method performed by the second network side device, and can achieve the same technical effect, to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to realize the above-mentioned The implementation of the interference measurement method embodiment, or the various processes of the interference measurement method embodiment executed by the second network side device can achieve the same technical effect, so to avoid repetition, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

An embodiment of the present application further provides a computer program product, the computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the above-mentioned interference measurement method performed by the first network side device The embodiments, or the various processes of the embodiments of the interference measurement method executed by the second network side device can achieve the same technical effect, and are not repeated here to avoid repetition.

An embodiment of the present application also provides an interference measurement system, including: a first network-side device and a second network-side device, the first network-side device can be used to perform the steps of the interference measurement method performed by the first network-side device , the second network-side device may be configured to execute the steps of the interference measurement method performed by the second network-side device.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , optical disk), including several instructions for enabling the network side device to execute the method described in each embodiment of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method of interference measurement comprising:

The first network side device performs interference measurement based on the reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.
The method according to claim 1, wherein the first resource is a flexible duplex resource.
The method according to claim 1, wherein, before performing interference measurement based on a reference signal on at least one subband of the first resource, the first network side device further includes:

The first network side device receives the transmission configuration information sent by the second network side device;

Wherein, the transmission configuration information is used to indicate the transmission format of the second network side device in the first resource.
The method according to claim 1, wherein the at least one subband is a subband in which a transmission format of the first network side device conflicts with a transmission format of the second network side device.
The method according to claim 1, wherein, after the first network side device performs interference measurement based on a reference signal on at least one subband of the first resource, further comprising:

When the preset condition is met, the first network-side device sends a cross-link measurement report to the second network-side device;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

The first timer corresponding to the measurement report is in the running state or in the non-running state;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.
The method according to claim 5, wherein the cross-link measurement report includes at least one of the following:

Layer 1 channel state information;

Layer 3 channel state information.
The method according to claim 1, wherein the first network side device performs interference measurement based on a reference signal on at least one subband of the first resource, comprising:

The first network side device performs the interference measurement when the second timer is in the running state or in the non-running state according to the second timer corresponding to the measurement.
The method according to claim 1, wherein the reference signal comprises at least one of the following:

Channel State Information Reference Signal CSI-RS;

channel state information interference measurement signal CSI-IM;

demodulation reference signal DMRS;

Synchronization signal block SSB.
The method according to claim 8, wherein the CSI-RS comprises at least one of the following:

The CSI-RS corresponding to the target CSI-RS identifier;

CSI-RS corresponding to the first target time domain and/or frequency domain resources;

The CSI-RS corresponding to the first target network side device;

The CSI-RS corresponding to the first target port;

The CSI-RS corresponding to the first target CDM group;

CSI-RS corresponding to the target CSI-RS type;

The CSI-RS corresponding to the precoding of the first target codebook;

CSI-RS corresponding to non-codebook precoding.
The method according to claim 8, wherein the DMRS comprises at least one of the following:

DMRS corresponding to the target physical downlink shared channel PDSCH;

DMRS corresponding to the target physical downlink control channel PDCCH;

DMRS corresponding to the second target port;

DMRS corresponding to the second target CDM group;

The DMRS corresponding to the target DMRS sequence.
The method according to claim 8, wherein the SSB comprises at least one of the following:

Configured as SSB for interference measurements;

All SSBs actually transmitted;

M SSBs among all SSBs actually transmitted, wherein the second signal index of the M SSBs is the highest among all SSBs, and M is a positive integer.
The method according to claim 8, wherein the CSI-IM includes at least one of the following:

The CSI-IM corresponding to the target CSI-IM identifier;

CSI-IM corresponding to the second target time domain and/or frequency domain resources;

The CSI-IM corresponding to the second target network side device;

The CSI-IM corresponding to the third target port;

The CSI-IM corresponding to the third target CDM group;

CSI-IM corresponding to the target CSI-IM type;

The CSI-IM corresponding to the precoding of the second target codebook;

CSI-IM corresponding to non-codebook precoding.
A method of interference measurement comprising:

the second network side device sends a reference signal to the first network side device;

Wherein, the reference signal is used for interference measurement by the first network side device on at least one subband of the first resource;

The first resource includes a transmission resource of the reference signal.
The method of claim 13, wherein the first resource is a flexible duplex resource.
The method of claim 13, further comprising:

The second network-side device sends transmission configuration information to the first network-side device;

Wherein, the transmission configuration information is used to indicate the transmission format of the second network side device in the first resource.
The method according to claim 13, wherein, after the second network-side device sends the reference information to the first network-side device, further comprising:

The second network-side device receives the cross-link measurement report sent by the first network-side device when a preset condition is met;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

The first timer corresponding to the measurement report is in the running state or in the non-running state;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.
The method of claim 16, wherein the cross-link measurement report includes at least one of the following:

Layer 1 channel state information;

Layer 3 channel state information.
The method according to claim 13, wherein the reference signal comprises at least one of the following:

Channel State Information Reference Signal CSI-RS;

channel state information interference measurement signal CSI-IM;

demodulation reference signal DMRS;

Synchronization signal block SSB.
An interference measurement device comprising:

A processing module, configured to perform interference measurement based on a reference signal on at least one subband of the first resource;

Wherein, the reference signal is sent by the second network side device;

The first resource includes a transmission resource of the reference signal.
The apparatus of claim 19, further comprising:

A first receiving module, configured to receive transmission configuration information sent by the second network side device;

Wherein, the transmission configuration information is used to indicate the transmission format of the second network side device in the first resource.
The apparatus of claim 19, further comprising:

A first sending module, configured to send a cross-link measurement report to the second network side device when a preset condition is met;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

The first timer corresponding to the measurement report is in the running state or in the non-running state;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.
An interference measurement device comprising:

a second sending module, configured to send a reference signal to the first network side device;

Wherein, the reference signal is used for interference measurement by the first network side device on at least one subband of the first resource;

The first resource includes a transmission resource of the reference signal.
The apparatus of claim 22, further comprising:

A third sending module, configured to send transmission configuration information to the first network side device;

Wherein, the transmission configuration information is used to indicate the transmission format of the second network side device on the first resource.
The apparatus of claim 22, further comprising:

The second receiving module is configured to receive the cross-link measurement report sent by the first network side device when the preset condition is met;

The preset conditions include at least one of the following:

It is measured that the first signal index reaches a preset threshold value;

The sending cycle of the trigger measurement report is reached;

The first timer corresponding to the measurement report is in the running state or in the non-running state;

receiving a cross-link interference measurement indication;

A cross-link measurement report is received;

A measurement report request is received.
A network side device, comprising a processor and a memory, the memory stores programs or instructions that can run on the processor, wherein when the program or instructions are executed by the processor, claims 1 to 12 are implemented The interference measurement method according to any one of claims 13 to 18, or the steps for implementing the interference measurement method according to any one of claims 13 to 18.