CN111385042B

CN111385042B - Method and communication device for interference measurement

Info

Publication number: CN111385042B
Application number: CN201811628835.6A
Authority: CN
Inventors: 王晓娜; 管鹏; 樊波
Original assignee: Chengdu Huawei Technology Co Ltd
Current assignee: Chengdu Huawei Technology Co Ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2021-07-20
Anticipated expiration: 2038-12-28
Also published as: WO2020134944A1; CN111385042A

Abstract

The application provides a method and a communication device for interference measurement. In this embodiment, the network device indicates, by sending first configuration information to the first terminal device, an interference measurement resource of the first terminal device, where a frequency domain of the interference measurement resource is a full bandwidth of a currently activated bandwidth portion BWP of the first terminal device, and then, the first terminal device performs interference measurement on the interference measurement resource, so that the first terminal device may not perform interference measurement on a pilot resource of an interference beam, thereby reducing system signaling overhead. In addition, the network device does not need to configure pilot frequency resources for interference measurement, and the system pilot frequency overhead can be reduced.

Description

Method and communication device for interference measurement

Technical Field

The present application relates to the field of communications, and more particularly, to a method and a communication apparatus for interference measurement in the field of communications.

Background

The fifth generation mobile communication system (5th generation, 5G) employs high-frequency communication based on analog beams. The network device may transmit multiple analog beams simultaneously through multiple radio frequency channels to transmit data for multiple users, and the signals of the multiple analog beams transmitted simultaneously may interfere with each other, which is called "intra-cell interference". The network device needs to measure the interference condition in the cell, so as to accurately obtain the channel quality under the influence of the interference in the cell, and avoid strong interference caused by a plurality of beams transmitted simultaneously, thereby performing efficient data transmission.

Because the terminal device side receives the analog beams, the network device side does not know which analog beams generate interference in advance, and therefore the network device needs to configure corresponding measurement configuration information to the terminal device, inform the terminal device to measure corresponding pilot frequency resources, and report measurement results to obtain the intra-cell interference situation.

However, measuring the intra-cell interference based on the pilot resource requires configuring a Channel state information reference signal (CSI-RS) pilot resource, which results in a large system signaling overhead and a large pilot overhead.

Disclosure of Invention

The application provides an interference measurement method and a communication device, which can reduce system signaling overhead and pilot frequency overhead.

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

a first terminal device receives first configuration information from a network device, wherein the first configuration information is used for indicating an interference measurement resource of the first terminal device, and a frequency domain of the interference measurement resource is a full bandwidth of a current active bandwidth part BWP of the first terminal device;

and the first terminal equipment carries out interference measurement on the interference measurement resource.

In this embodiment, the network device indicates, by sending first configuration information to the first terminal device, an interference measurement resource of the first terminal device, where a frequency domain of the interference measurement resource is a full bandwidth of a currently activated bandwidth portion BWP of the first terminal device, and then, the first terminal device performs interference measurement on the interference measurement resource, so that the first terminal device may not perform interference measurement on a pilot resource of an interference beam, thereby reducing system signaling overhead. In addition, the network device does not need to configure pilot frequency resources for interference measurement, and the system pilot frequency overhead can be reduced.

With reference to the first aspect, in certain implementations of the first aspect, the first configuration information includes first indication information, where the first indication information is used to indicate a frequency domain location of the interference measurement resource. Wherein the frequency domain of the interference measurement resources is continuously distributed.

With reference to the first aspect, in certain implementation manners of the first aspect, a value of the first indication information is-1 or an invalid value. That is, when the value of the indication information of the frequency domain position of the interference measurement resource is the newly added value of-1 or an invalid value, the frequency domain of the interference measurement resource is the whole bandwidth of the BWP activated by the current serving cell of the first terminal device by default.

Therefore, in the embodiment of the present application, the frequency domain position of the interference measurement resource is indicated by adding the value of the parameter in the existing resource format (resource pattern), and the interference measurement resource can be indicated by continuously using the existing resource format (resource pattern).

With reference to the first aspect, in certain implementations of the first aspect, the time domain of the interference measurement resource includes a single symbol, or a plurality of consecutive or non-consecutive symbols.

With reference to the first aspect, in certain implementations of the first aspect, the first configuration information includes second indication information, where the second indication information is used to indicate a symbol position of the interference measurement resource.

Optionally, in this embodiment of the present application, the indication of the frequency domain position or the time domain position of the interference measurement resource may also be implemented by using a newly defined resource format.

By way of example, the interference measurement resource may include an interference measurement CSI-IM resource (CSI-IM-resource for interference), an interference measurement NZP-CSI-RS resource (NZP-CSI-RS-resource for interference) or an interference measurement ZP-CSI-RS resource (ZP-CSI-RS-resource for interference), which is not limited in this application.

With reference to the first aspect, in certain implementations of the first aspect, the first configuration information further includes third indication information, where the third indication information is used to indicate a time domain attribute of the interference measurement resource, and the time domain attribute includes periodicity, aperiodicity, or semi-static.

In one implementation, when the interference measurement resource is configured as a periodic resource, a period and a time offset (periodicityAndOffset) of the interference measurement resource need to be configured accordingly.

With reference to the first aspect, in certain implementations of the first aspect, when the time domain attribute of the interference measurement resource is periodic, the first configuration information further includes a quasi-co-located QCL indication of the interference measurement resource. Wherein the quasi co-located QCL indicates receive beam information indicating that the first terminal device is to receive the interference measurement resource. Therefore, in the embodiment of the present application, the network device may configure the receive beam information for receiving the interference measurement resource.

With reference to the first aspect, in some implementations of the first aspect, the performing, by the first terminal device, interference measurement on the interference measurement resource includes:

and the first terminal equipment receives the signal transmitted on the interference measurement resource by using the same receiving beam as the current data channel or the control channel of the first terminal equipment, and carries out interference measurement on the signal.

Therefore, in the embodiment of the present application, the first terminal device may receive the interference measurement resource based on the reception beam of the current data channel or the control channel, and based on this, the QCL indication default may be implemented, thereby saving resources.

With reference to the first aspect, in certain implementations of the first aspect, the interference measurement resource is used for data transmission by a second terminal device other than the first terminal device. Therefore, when the first terminal equipment performs the intra-cell paired beam interference measurement, the interference measurement can be performed on the resources of data transmission of other terminal equipment, and the pilot frequency overhead is saved.

With reference to the first aspect, in some implementations of the first aspect, when a time domain of the interference measurement resource includes a plurality of symbols, the performing, by the first terminal device, interference measurement on the interference measurement resource includes:

the first terminal device performs interference measurement on the plurality of symbols, and obtains total received power of the plurality of symbols, or symbol-level average received power of the plurality of symbols, or resource element-level average received power of the plurality of symbols.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes:

the first terminal device receives second configuration information from the network device, where the second configuration information is used to instruct the first terminal device to report an interference measurement value corresponding to the interference measurement resource. Wherein, the interference measurement value is the received energy of the interference measurement resource. Specifically, the interference measurement value is, for example, a total received power of the plurality of symbols, or a symbol-level average received power of the plurality of symbols, or a resource element-level average received power of the plurality of symbols.

Optionally, the second configuration information may also be used to instruct the first terminal device to report one or more of the following information: interference measurement resource identification, interference measurement value, channel measurement resource identification, channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP.

With reference to the first aspect, in some implementation manners of the first aspect, when the interference measurement value is multiple, the first terminal device performs quantitative reporting on each interference measurement value in the multiple interference measurement values through bits, or performs quantitative reporting through a difference method. In the embodiment of the application, the first terminal device reports the interference measurement value in a quantitative manner, so that the occupation of transmission bandwidth can be reduced, and the data transmission efficiency can be improved.

Optionally, when the interference measurement value is multiple, the first terminal device may select one or more interference measurement values from the multiple interference measurement values for quantitative reporting based on the determined current interference measurement value.

the first terminal device reports one or more of the following information to the network device: interference measurement resource identification, interference measurement value, channel measurement resource identification, channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP.

In a second aspect, a method for interference measurement is provided, including:

the method comprises the steps that a network device determines first configuration information, wherein the first configuration information is used for indicating interference measurement resources of a first terminal device, and the frequency domain of the interference measurement resources is the full bandwidth of a current active bandwidth part BWP of the first terminal device;

and the network equipment sends the first configuration information to the first terminal equipment.

With reference to the second aspect, in some implementations of the second aspect, the first configuration information includes first indication information, and the first indication information is used to indicate a frequency domain location of the interference measurement resource. Wherein the frequency domain of the interference measurement resources is continuously distributed.

With reference to the second aspect, in some implementations of the second aspect, a value of the first indication information is-1 or an invalid value. That is, when the value of the indication information of the frequency domain position of the interference measurement resource is the newly added value of-1 or an invalid value, the frequency domain of the interference measurement resource is the whole bandwidth of the BWP activated by the current serving cell of the first terminal device by default.

With reference to the second aspect, in some implementations of the second aspect, the time domain of the interference measurement resource includes a single symbol, or a plurality of consecutive or non-consecutive symbols.

With reference to the second aspect, in some implementations of the second aspect, the first configuration information includes second indication information, and the second indication information is used to indicate a symbol position of the interference measurement resource.

With reference to the second aspect, in certain implementations of the second aspect, the first configuration information further includes third indication information, where the third indication information is used to indicate a time domain attribute of the interference measurement resource, and the time domain attribute includes periodicity, aperiodicity, or semi-static.

With reference to the second aspect, in certain implementations of the second aspect, when the time-domain attribute of the interference measurement resource is periodic, the first configuration information further includes a quasi-co-located QCL indication of the interference measurement resource. Wherein the quasi co-located QCL indicates receive beam information indicating that the first terminal device is to receive the interference measurement resource. Therefore, in the embodiment of the present application, the network device may configure the receive beam information for receiving the interference measurement resource.

With reference to the second aspect, in some implementations of the second aspect, the interference measurement resource is used for data transmission by a second terminal device other than the first terminal device. Therefore, when the first terminal equipment performs the intra-cell paired beam interference measurement, the interference measurement can be performed on the resources of data transmission of other terminal equipment, and the pilot frequency overhead is saved.

With reference to the second aspect, in some implementations of the second aspect, when the time domain of the interference measurement resource includes a plurality of symbols, the method further includes:

the network device receives the total received power of the symbols reported by the first terminal device, or the symbol-level average received power of the symbols, or the resource element-level average received power of the symbols.

With reference to the second aspect, in some implementations of the second aspect, the method further includes:

and the network equipment sends second configuration information to the first terminal equipment, wherein the second configuration information is used for indicating the first terminal equipment to report an interference measurement value corresponding to the interference measurement resource. Wherein, the interference measurement value is the received energy of the interference measurement resource. Specifically, the interference measurement value is, for example, a total received power of the plurality of symbols, or a symbol-level average received power of the plurality of symbols, or a resource element-level average received power of the plurality of symbols.

the network equipment receives one or more of the following information reported by the first terminal equipment: interference measurement resource identification, interference measurement value, channel measurement resource identification, channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP.

In a third aspect, a communication apparatus is provided, which may be a terminal device or a chip in the terminal device. The apparatus has the functionality to implement the second aspect and various possible implementations described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the apparatus includes: the apparatus further comprises a transceiver module, which may be at least one of a transceiver, a receiver, a transmitter, for example, and optionally a processing module, which may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected with the storage module, and the processing module can execute the instructions stored by the storage module or other instructions from other sources so as to cause the device to execute the method of any one of the aspects.

In another possible design, when the device is a chip, the chip includes: the chip also includes a processing module, and the transceiver module may be, for example, an input/output interface, a pin, a circuit, or the like on the chip. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the terminal to perform the communication method of the second aspect and any possible implementation. Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, a cache, and the like. The memory module may also be located within the communication device, but outside the chip, such as a read-only memory (ROM) or other types of static memory devices that may store static information and instructions, a Random Access Memory (RAM), and so on.

The processor mentioned in any of the above may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs of the communication methods in the above aspects.

In a fourth aspect, a communication apparatus is provided, where the apparatus may be a network device or a chip within the network device. The apparatus has the functionality to implement the first aspect and various possible implementations described above. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the apparatus includes: the apparatus further comprises a transceiver module, which may be at least one of a transceiver, a receiver, a transmitter, for example, and optionally a processing module, which may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or instructions derived from other instructions, so as to enable the apparatus to perform the communication method of the first aspect and various possible implementations.

In another possible design, when the device is a chip, the chip includes: the transceiver module, which may be, for example, an input/output interface, a pin, a circuit, or the like on the chip, optionally further comprises a processing module. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the terminal to perform the method of the first aspect and any possible implementation. Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, a cache, and the like. The memory module may also be located within the communication device, but outside the chip, such as a read-only memory (ROM) or other types of static memory devices that may store static information and instructions, a Random Access Memory (RAM), and so on.

In a fifth aspect, a computer storage medium is provided, in which a program code is stored, the program code being used for instructing to execute instructions of the method of the first or second aspect or any possible implementation manner thereof.

A sixth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first or second aspect described above or any possible implementation thereof.

In a seventh aspect, a communication system is provided, which comprises an apparatus having functions to implement the methods and various possible designs of the first aspect and an apparatus having functions to implement the methods and various possible designs of the second aspect.

In an eighth aspect, a processor is provided, coupled to a memory, for performing the method of the first or second aspect or any possible implementation manner thereof.

In a ninth aspect, there is provided a chip comprising a processor and a communication interface for communicating with an external device or an internal device, the processor being configured to implement the method of the first or second aspect or any possible implementation thereof.

Optionally, the chip may further include a memory having instructions stored therein, and the processor may be configured to execute the instructions stored in the memory or derived from other instructions. When executed, the instructions are for implementing a method of the first or second aspect described above, or any possible implementation thereof.

Alternatively, the chip may be integrated on a terminal device or a network device.

Drawings

Fig. 1 shows a schematic diagram of a communication system of an embodiment of the present application.

Fig. 2 shows a schematic diagram of a scenario in which the method of interference measurement is applied.

Fig. 3 is a schematic flow diagram of a method of interference measurement shown from the perspective of device interaction.

Fig. 4 shows a schematic flow chart of a method for interference measurement according to an embodiment of the present application.

Fig. 5 is a schematic flow chart of another method for interference measurement provided in the embodiment of the present application.

Fig. 6 is a schematic block diagram of a communication device provided in an embodiment of the present application.

Fig. 7 is a schematic block diagram of another communication device provided in an embodiment of the present application.

Fig. 8 is a schematic block diagram of another communication device provided in an embodiment of the present application.

Fig. 9 is a schematic block diagram of another communication device provided in an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The embodiment of the application is suitable for a multi-carrier communication system based on wave beams, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, future fifth generation (5G) or new radio NR systems, etc.

Fig. 1 shows a schematic diagram of a communication system 100 suitable for use in the method and apparatus for interference measurement of the embodiments of the present application. As shown, the communication system 100 may include at least one network device, such as the network device 110 shown in fig. 1; the communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in fig. 1. Network device 110 and terminal device 120 may communicate via a wireless link.

Each communication device, such as network device 110 or terminal device 120 in fig. 1, may be configured with multiple antennas. The plurality of antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals. Additionally, each communication device can additionally include a transmitter chain and a receiver chain, each of which can comprise a plurality of components associated with signal transmission and reception (e.g., processors, modulators, multiplexers, demodulators, demultiplexers, antennas, etc.), as will be appreciated by one skilled in the art. Therefore, the network equipment and the terminal equipment can communicate through the multi-antenna technology.

It should be understood that the network device in the wireless communication system may be any device having a wireless transceiving function. Such devices include, but are not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (e.g., Home evolved NodeB, or Home Node B, HNB), BaseBand Unit (Base band Unit, BBU), Access Point (AP) in Wireless Fidelity (WIFI) system, etc., and may also be 5G, such as NR, gbb in system, or TRP, transmission Point (TRP or TP), one or a group of antennas (including multiple antennas, NB, or a transmission panel) of a Base Station in 5G system, such as a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include a Radio Unit (RU). A CU implements part of the function of a gNB, and a DU implements part of the function of the gNB, for example, the CU implements the function of a Radio Resource Control (RRC) layer, a Packet Data Convergence Protocol (PDCP) layer, and the DU implements the function of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or the DU + CU under this architecture. It is to be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into network devices in a Radio Access Network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

It should also be understood that terminal equipment in the wireless communication system may also be referred to as User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The embodiments of the present application do not limit the application scenarios.

To facilitate understanding of the embodiments of the present application, a brief description of several terms referred to in the present application will be given below.

1. Beam (beam): it means that the wireless signal energy is concentrated in a small range, thereby forming an effect similar to a light beam. High frequencies transmit signals through the beam, which may increase the transmission distance of the signals. Beams are produced by beam forming techniques, which include digital beam forming techniques, analog beam forming techniques, and hybrid digital/analog beam forming techniques. Beams generated by digital beamforming techniques are referred to as digital beams, while beams generated by analog beamforming techniques are referred to as analog beams.

The beam used for transmitting signals may be referred to as a transmit beam and the beam used for receiving signals may be referred to as a receive beam. The transmission beam may refer to the distribution of signal strength formed in different spatial directions after the signal is transmitted through the antenna, and the reception beam may refer to the distribution of signal strength of the wireless signal received from the antenna in different spatial directions. Wherein, the transmitting beam and the receiving beam have a beam pairing relation.

The beam that the network device schedules to the terminal device for data transmission may be referred to as a serving beam (serving beam). : the other beams that are scheduled with the service beam may be referred to as interference beams (interference beams), which may interfere with the data on the service beam.

2. Channel state information acquisition (CSI acquisition): the measuring of the channel quality of the service beam includes obtaining a channel-quality indicator (CQI), a Rank Indicator (RI), a precoding-matrix indicator (PMI), a signal to interference and noise ratio (SINR), and the like.

3. Interference measurement (interference measure): the information of the interference beam is measured, and includes a strong interference beam Identification (ID), a weak interference beam ID, a multi-user channel-quality indicator (MU-CQI) of the service beam under interference of the interference beam, and the like.

Multi-user channel-quality indicator (MU-CQI): when the network device transmits data for a plurality of users simultaneously through a plurality of analog beams, the signal transmitted on each beam is interfered by signals on other beams of the local cell in addition to the background noise and the interference of the adjacent cell. Therefore, when measuring the channel state information CQI corresponding to each beam, it is necessary to count the interference with other beams of the cell, and such CQI is referred to as MU-CQI. In this embodiment, the interference of signals on other beams in the cell may be referred to as paired beam interference.

Single-user channel-quality indicator (SU-CQI): the interference of the channel quality measurement only considers the background noise and the interference of the adjacent cell, and does not consider the interference of the matched wave beam of the cell. The channel state information at this time is referred to as SU-CQI. Briefly, SU-CSI is CQI without considering intra-cell paired beam interference, and MU-CQI is CQI with considering intra-cell paired beam interference.

4. Time domain property: in the interference measurement resource configuration and the interference measurement reporting configuration, different time domain behaviors may be indicated by different time domain attributes. The time domain attribute of the interference resource configuration can be used for indicating the time domain behavior of the terminal equipment for receiving the interference signal; the time domain attribute configured for measurement reporting can be used for indicating the time domain behavior of the interference measurement result reported by the terminal equipment.

By way of example and not limitation, time domain attributes may include, for example, periodic (periodic), semi-persistent (semi-persistent), and aperiodic (aperiodic).

5. Bandwidth part (BWP): since the transmitting or receiving capabilities of different terminal devices in the same cell in NR may be different, the system may configure a corresponding bandwidth for each terminal device, and this portion of the bandwidth configured for the terminal device is called BWP, and the terminal device transmits on its own BWP. The BWP may be a set of consecutive frequency resources on a carrier, and the frequency resources occupied by different BWPs may partially overlap or may not overlap. The bandwidth of the frequency domain resource occupied by different BWPs may be the same or different, and the application is not limited thereto.

The system may configure different BWPs for different terminal devices. To support different services, different BWPs may support different configuration parameters (numerology). Numerology is a concept newly introduced in NR, and can be specifically understood as a set of parameters used by the communication system, which may include, for example, subcarrier spacing (SCS), symbol length, Cyclic Prefix (CP) length, Resource Block (RB) number, slot length, frame format, and so on. A cell may support one or more numerologies and a BWP may support a numerology. It should be understood that the numerical details recited herein are merely exemplary and should not be construed as limiting the present application in any way. For example, numerology may also include parameters for other granularities that can be supported in the NR.

In summary, different BWPs may be configured with different transmission bandwidths (e.g., different numbers of RBs included in the BWPs), different subcarrier spacings, different Cyclic Prefixes (CPs), and so on.

The system may configure a plurality of different BWPs for one terminal device. When the network device needs to perform data transmission with the terminal device, one or more BWPs can be activated, and then data transmission is performed on the activated BWPs.

It should be understood that the embodiment of the NR protocol listed above for the beams is only an example and should not constitute any limitation to the present application. This application does not exclude the possibility that other terms may be defined in future protocols to have the same or similar meaning.

6. Quasi-co-location (QCL): or quasi-parity. The reference signals corresponding to the antenna ports having the QCL relationship have the same parameters, or the parameters of one antenna port may be used to determine the parameters of another antenna port having the QCL relationship with the antenna port, or two antenna ports have the same parameters, or the parameter difference between the two antenna ports is smaller than a certain threshold. Wherein the parameters may include one or more of: delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average delay (average delay), average gain, spatial Rx parameters. Wherein the spatial reception parameters may include one or more of: angle of arrival (AOA), average AOA, AOA extension, angle of departure (AOD), average angle of departure (AOD), AOD extension, receive antenna spatial correlation parameter, transmit beam, receive beam, and resource identification.

The angle may be a decomposition value of different dimensions, or a combination of decomposition values of different dimensions. The antenna ports are antenna ports with different antenna port numbers, and/or antenna ports with the same antenna port number for transmitting or receiving information in different time and/or frequency and/or code domain resources, and/or antenna ports with different antenna port numbers for transmitting or receiving information in different time and/or frequency and/or code domain resources. The resource identification may include: a CSI-RS resource identifier, or an SRS resource identifier, or an SSB resource identifier, or a resource identifier of a preamble sequence transmitted on a Physical Random Access Channel (PRACH), or a resource identifier of a demodulation reference signal (DMRS), which is used to indicate a beam on a resource.

In the NR protocol, QCL relationships can be classified into the following four types based on different parameters:

type a (type a): doppler frequency shift, Doppler spread, average time delay and time delay spread;

type b (type b): doppler shift, doppler spread;

type c (type c): doppler shift, average delay; and

type d (type d): the space receives the parameters.

The QCL referred to in the embodiments of the present application is a QCL of type D. Hereinafter, without being particularly illustrated, the QCL may be understood as a QCL of type D, i.e., a QCL defined based on spatial reception parameters.

When a QCL relationship refers to a QCL relationship of type D, it may be considered a spatial QCL. When the antenna port satisfies the spatial domain QCL relationship, the QCL relationship between the port of the downlink signal and the port of the downlink signal, or between the port of the uplink signal and the port of the uplink signal, may be that the two signals have the same AOA or AOD for indicating that the two signals have the same receive beam or transmit beam. For another example, for QCL relationship between downlink signals and uplink signals or between ports of uplink signals and downlink signals, AOAs and AODs of two signals may have a corresponding relationship, or AODs and AOAs of two signals have a corresponding relationship, that is, an uplink transmit beam may be determined according to a downlink receive beam or a downlink receive beam may be determined according to an uplink transmit beam by using beam reciprocity.

From the transmitting end, if it is said that two antenna ports are spatial QCL, it may be said that the corresponding beam directions of the two antenna ports are spatially consistent. From the perspective of the receiving end, if it is said that the two antenna ports are spatial QCL, it may mean that the receiving end can receive signals transmitted by the two antenna ports in the same beam direction.

Signals transmitted on ports having spatial QCL relationships may also have corresponding beams comprising at least one of: the same receive beam, the same transmit beam, a transmit beam corresponding to the receive beam (corresponding to a reciprocal scene), a receive beam corresponding to the transmit beam (corresponding to a reciprocal scene).

A signal transmitted on a port having a spatial QCL relationship may also be understood as a signal received or transmitted using the same spatial filter. The spatial filter may be at least one of: precoding, weight of antenna port, phase deflection of antenna port, and amplitude gain of antenna port.

Signals transmitted on ports having spatial QCL relationships may also be understood as having corresponding Beam Pair Links (BPLs) including at least one of: the same downlink BPL, the same uplink BPL, the uplink BPL corresponding to the downlink BPL, and the downlink BPL corresponding to the uplink BPL.

Accordingly, the spatial reception parameter (i.e., QCL of type D) may be understood as a parameter for indicating direction information of a reception beam.

7. Transmission Configuration Indicator (TCI) state (state): may be used to indicate the QCL relationship between the two reference signals. An index (servececellindex) of a serving cell, a bandwidth part (BWP) Identifier (ID), and a reference signal resource identifier (rs ID) may be included in each TCI state, where the rs ID may be at least one of the following: a non-zero power (NZP) CSI-RS reference signal resource identification (NZP-CSI-RS-resource id), a non-zero power CSI-RS reference signal resource set identification (NZP-CSI-RS-resource eSetId), or an SSB Index (SSB-Index).

Optionally, the network device may also assign QCL identifiers for beams having quasi-co-location (QCL) relationships among beams associated with the frequency resource groups.

QCL relationships are used to indicate that multiple resources have one or more identical or similar communication characteristics. The same or similar communication configurations may be employed for multiple resources having QCL relationships. For example, if two antenna ports have a QCL relationship, the large scale characteristics of the channel that one port transmits one symbol may be inferred from the large scale characteristics of the channel that the other port transmits one symbol. The large scale features may include: delay spread, average delay, doppler spread, doppler shift, average gain, reception parameters, terminal device received beam number, transmit/receive channel correlation, received angle of arrival, spatial correlation of receiver antennas, angle of arrival (AoA), average angle of arrival, spread of main angle of arrival, etc.

The QCL also includes spatial quasi co-location (spatial QCL). A spatial QCL can be considered as a type of QCL. For spatial domain quasi-parity, it can be understood from two angles, namely, the transmitting end and the receiving end. From the transmitting end, if two antenna ports are spatially quasi-co-located, it means that the corresponding beam directions of the two antenna ports are spatially identical. From the receiving end, if two antenna ports are spatially quasi-co-located, it means that the receiving end can receive the signals transmitted by the two antenna ports in the same beam direction.

The index of the serving cell, the BWPID, and the reference signal resource identifier refer to the reference signal resource used in the beam training process and the corresponding serving cell and BWP. In the beam training process, the network equipment sends the reference signals through different transmitting beams based on different reference signal resources, so the reference signals sent through different transmitting beams can be associated with different reference signal resources; the terminal device receives the reference signal through different receiving beams based on different reference signal resources, so the reference signal received through different receiving beams can be associated with different reference signal resources. Therefore, in the beam training process, the terminal device may maintain the index of the serving cell, the BWPID, and the reference signal resource identifier and the correspondence of the receiving beam, and the network device may maintain the index of the serving cell, the BWPID, and the reference signal resource identifier and the correspondence of the transmitting beam. By referring to the signal resource identification, the pairing relationship between the receiving beam and the transmitting beam can be established.

During communication thereafter, the terminal device may determine a receive beam based on the TCI status indicated by the network device including spatial quasi co-location (spatial qcl).

Further, the TCI state may be globally configured. In the TCI states configured for different cells and different BWPs, if the indexes of the TCI states are the same, the corresponding TCI states are also configured the same.

In a method for measuring interference wave beams in a cell, network equipment configures measurement configuration information to terminal equipment, wherein the measurement configuration information comprises measurement resource configuration information and measurement reporting configuration information so as to inform the terminal equipment of pilot frequency resources measured and how to report measurement results after measurement.

Specifically, the measurement resource configuration information divides the measurement resources into three levels: resource set list → resource set → resource (resource set) → resource (resource). Specifically, the network device may configure one or more resource set lists for the terminal device, where each resource set list may include one or more resource sets, each resource set may include one or more resources, and each resource is a set of measurement pilot resources. Each resource has an Identification (ID). When the type of the pilot resource contained in the resource is CSI-RS, its ID is called CSI-RS index (CRI), and when the type of the pilot resource contained in the resource is synchronization message block (SSB), its ID is called SSB index (SSB index).

The measurement reporting configuration information includes a measured carrier frequency, and the measurement reporting configuration may be associated with a CSI resource configuration (CSI-ResourceConfig), and may also be associated with a reporting quantity (what measurement quantity is reported, such as CQI), a reporting period, and the like, which are not listed here. Specifically, each measurement reporting configuration is associated with one or more CSI-ResourceConfig, which is used to indicate through what resources to measure the required reporting amount. For example, an aperiodic measurement reporting configuration for paired beam interference measurement may associate three CSI-ResourceConfig, the first being a set of non-zero power (NZP) -CSI-RS-resourcesets for channel measurement, the second being a set of CSI-IM-resourcesets for interference measurement, and the third being a set of NZP-CSI-RS-resourcesets for interference measurement.

In the embodiments of the present application, two CRI terms are referred to: channel CRI and interference CRI. The channel CRI is the ID of the selected resource in the CSI-ResourceConfig for channel measurement. The interference CSI is an ID of a resource contained in the CSI-ResourceConfig for interference measurement, that is, the channel CRI reported by the terminal device is an ID of a resource selected from a group of NZP-CSI-RS-resourcesets for channel measurement. The interference CRI is the ID of the resource contained by a set of CSI-IM-resource esets or NZP-CSI-RS-resource esets used for interference measurements.

A method of interference beam measurement includes, for example, the following steps 1 to 4.

Step 1, a network device sends an RRC message to a terminal device, and configures a channel-state information (CSI) aperiodic triggered state list (CSI-AperiodicTriggerStateList) for the terminal device through the RRC message. The CSI-aperiodictriggerstatlist includes 128 CSI aperiodic trigger states (CSI-aperiodictriggerstates) at maximum, each CSI-AperiodicTriggerState includes 16 CSI related reporting configuration information (CSI-AssociatedReportConfigInfo) at most, each CSI-AssociatedReportConfigInfo includes a CSI reporting configuration identifier (CSI-reportConfigID), a channel measurement resource (resourceforchannelmeasurement), an interference measurement CSI-IM resource (CSI-IM-resourceferenterference), and an interference measurement NZP-CSI-RS resource (NZP-CSI-RS-resourceferenterference). The interference measurement CSI-IM resource is used for measuring inter-cell interference, and the interference measurement NZP-CSI-RS resource is used for measuring intra-cell paired beam interference.

Step 2, the network device sends a media access control-control element (MAC-CE) to the terminal device, and triggers one or more CSI-aperiodictriggerstates from at most 128 CSI-aperiodictriggerstates contained in a CSI-aperiodictriggerstates list configured in the RRC layer through the MAC-CE.

And step 3, the network equipment sends Downlink Control Information (DCI) to the terminal equipment, and dynamically activates one of the 16 CSI-associated report ConfigInfo configured by the CSI-Aperiodic TriggerState activated by the MAC-CE to the terminal equipment through the DCI.

And 4, the terminal equipment performs pilot frequency measurement on corresponding time-frequency domain resources based on the measurement resource configuration triggered by the DCI, and reports the measurement result to the network equipment based on the measurement reporting configuration.

Fig. 2 shows a schematic diagram of a scenario in which the method of interference measurement is applied. As shown in fig. 2, the active users in the current cell are terminal device 1, terminal device 2, and terminal device 4, where the serving beam of terminal device 1 is beam (beam)1, the serving beam of terminal device 2 is beam 2, and the serving beam of terminal device 4 is beam 4. In this embodiment, the network device may configure the terminal device to measure the paired beam interference. For example, the network device configures terminal device 1 to measure interference information between beam 1 and beam 2 and between beam 1 and beam 4, configures terminal device 2 to measure interference information between beam 2 and beam 1 and between beam 2 and beam 4, and configures terminal device 3 to measure interference information between beam 4 and beam 1 and between beam 4 and beam 2. The interference measurement by the terminal device 1 will be explained as an example.

The network device configures two CSI reporting configurations (CSI-Association reportConfigInfo) for the terminal device 1 through RRC message, and at the time 1, the CSI-AperiodiciTriggerState #1 is triggered by the DCI to indicate the terminal device 1 to measure interference information between the beam 1 and the beam 2, and report a measurement result, such as MU-CQI. At time 2, the DCI triggers CSI-AperiodicTriggerState #2 to instruct the terminal device 1 to measure interference information between the beam 1 and the beam 4, and report a measurement result, such as MU-CQI.

Specifically, aperiodic triggerstate #1 and aperiodic triggerstate #2 are specifically shown in table 1 below:

TABLE 1

The CSI-AperiodicTriggerState #1 reports configuration ID #1 correspondingly, the channel measurement resource of the CSI-AperiodicTriggerState #1 corresponds to a beam 1 pilot resource, that is, RS ID #1, the pilot resource of other cells corresponds to a beam 5 pilot resource, that is, RS ID #5, and the interference measurement resource of the CSI-AperiodicTriggerState #1 corresponds to a beam 2 pilot resource, that is, RS ID # 2. The CSI-Aperiodic TriggerState #2 reports a configuration ID #2 correspondingly, a channel measurement resource of the CSI-Aperiodic TriggerState #2 corresponds to a beam 1 pilot resource, namely RS ID #1, other cell pilot resources correspond to a beam 5 pilot resource, namely RS ID #5, and an interference measurement resource of the CSI-Aperiodic TriggerState #2 corresponds to a beam 4 pilot resource, namely RS ID # 4.

The specific configuration information of the CSI-IM-Resource is shown in table 2 below:

TABLE 2

Specifically, the network device configures a resource for (serving beam) channel measurement and a resource for (interfering beam) interference measurement for the terminal device through an RRC message, specifically, the channel measurement may be an NZP CSI-RS resource, and the resource for interference measurement may be an NZP CSI-RS resource. The terminal device then calculates the MU-CQI for the serving beam under the influence of the interfering beam. Specifically, the calculation formula of the MU-CQI is as follows:

wherein, P_channelIs the signal energy on the resource used for channel measurement (e.g., resource #1, i.e., the resource corresponding to RS ID # 1), characterizing the signal strength of the serving beam. P_NZP-IMRIs the signal energy on the resource used for interference measurement, characterizing the signal strength of the interfering beam. If the network device is configured with multiple interference measurement resources, the terminal device needs to accumulate the signal capability on all the interference measurement resources. Here, the interference measurement resources include, for example, from resource #3 (i.e., a resource corresponding to RS ID # 3) to resource #6 (i.e., a resource corresponding to RS ID # 6). P_CSI-IMOther interference energy (e.g., resource #2, i.e., the resource corresponding to RS ID # 1) based on CSI-IM, for example, includes white noise and interference of other cells.

In order to accurately acquire interference information, the network device regards all other beams except the service beam as interference, and the terminal device is configured to measure MU-CQI under interference of each beam respectively to acquire information of all interference beams. Therefore, no matter which beam is scheduled simultaneously with the service beam in the future, the network equipment has the corresponding CQI to accurately select the modulation coding technology, and the performance of data transmission is ensured. However, the network device may configure the terminal device to measure CQI under each beam interference, which results in too large measurement overhead. For example, assuming that the network device has 256 beams, the terminal device will perform 255 measurement reports for each serving beam, and the overhead is not tolerable.

In addition, with the movement of the terminal device or the dynamic triggering/ending of the user service, the change of the user service beam or the pairing beam in the introduced cell requires RRC signaling to reconfigure the measurement resource, and frequent RRC configuration may result in higher system signaling overhead and complexity. For example, when the users activated in the cell in fig. 2 are updated from being terminal device 1, terminal device 2, and terminal device 4 to being terminal device 1, terminal device 2, and terminal device 3, the network device needs to configure terminal device 3 to measure the interference information between beam 3 and beam 1 and between beam 3 and beam 2, and also needs to update terminal device 1 to measure the interference information between beam 1 and beam 2 and between beam 1 and beam 3 and configure terminal device 2 to measure the interference information between beam 2 and beam 1 and between beam 2 and beam 3.

In view of this, an embodiment of the present application provides an interference measurement method, which performs interference measurement on a full bandwidth of a currently active bandwidth portion BWP through a terminal device, so that the terminal device may perform interference measurement without using a pilot resource, thereby reducing system pilot overhead. In addition, the network device does not need to configure pilot frequency resources for interference measurement, and the system pilot frequency overhead can be reduced.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be understood that in the embodiments shown below, the first, second, third and various numerical numbers are only used for convenience of description and are not used to limit the scope of the embodiments of the present application. For example, different terminal devices, different configuration information, different indication information, and the like are distinguished.

It should also be understood that in the embodiments illustrated below, "pre-acquisition" may include signaling by the network device or pre-definition, e.g., protocol definition. The "predefined" may be implemented by saving a corresponding code, table, or other means that can be used to indicate the relevant information in advance in the device (for example, including the terminal device and the network device), and the present application is not limited to a specific implementation manner thereof.

It should also be understood that references to "storing" in embodiments of the present application may refer to storing in one or more memories. The one or more memories may be provided separately or integrated in the encoder or decoder, the processor, or the communication device. The one or more memories may also be provided separately, with a portion of the one or more memories being integrated into the decoder, the processor, or the communication device. The type of memory may be any form of storage medium and is not intended to be limiting of the present application.

It should also be understood that the "protocol" in the embodiment of the present application may refer to a standard protocol in the communication field, and may include, for example, an LTE protocol, an NR protocol, and a related protocol applied in a future communication system, which is not limited in the present application.

The technical solution of the present application may be applied to a wireless communication system, for example, the communication system 100 shown in fig. 1. Two communication devices in a wireless communication system may have a wireless communication connection relationship between them. One of the two communication apparatuses may correspond to, for example, network device 110 shown in fig. 1, such as network device 110 or a chip configured in network device 110, and the other of the two communication apparatuses may correspond to, for example, terminal device 120 in fig. 1, such as terminal device 120 or a chip configured in terminal device 120.

Hereinafter, without loss of generality, the embodiments of the present application will be described in detail by taking a downlink transmission procedure between one terminal device (first terminal device) and a network device as an example. It is understood that any terminal device or chip configured in the terminal device in the wireless communication system can perform interference measurement based on the same method. This is not limited in this application.

Fig. 3 is a schematic flow diagram of a method of interference measurement shown from the perspective of device interaction. As shown in fig. 3, the method 300 may include steps 310 through 330. The various steps in method 300 are described in detail below in conjunction with fig. 3.

The network device determines 310 first configuration information indicating an interference measurement resource of the first terminal device, wherein a frequency domain of the interference measurement resource is a full bandwidth of a currently active bandwidth portion BWP of the first terminal device.

In the embodiment of the present application, the name of the "first configuration information" is not particularly limited, and for example, the "first configuration information" may also be referred to as "interference measurement resource configuration". In the embodiment of the present application, "first configuration information" and "interference measurement resource configuration" are used alternately, and the expressions thereof are consistent when the differences are not emphasized.

Specifically, the interference measurement resource may be an interference measurement resource of a paired beam in a cell, and the interference measurement resource is mainly used for measuring interference of the paired beam. For example, for terminal device 1 in fig. 2, the frequency domain of the interference measurement resource of terminal device 1 may be the full bandwidth of the BWP currently activated by terminal device 1. The possible intra-cell pairing beam of the terminal device 1 is the service beam of other active terminal devices. For example, with respect to fig. 2, the currently active terminal device includes terminal device 1, terminal device 2, and terminal device 4, where the active terminal device refers to a terminal device to be currently scheduled for data transmission, and the intra-cell paired beam of terminal device 1 is serving beam 2 of terminal device 2 or serving beam 4 of terminal device 4. Thus, the data or pilot resource sent by the beam 2 or the beam 4 is the interference measurement resource of the intra-cell paired beam of the terminal device 1.

Optionally, the interference measurement resource is used for data transmission by other terminal devices (second terminal devices) except the first terminal device. Specifically, the interference measurement resource may be a data transmission resource of other terminal devices in the cell or a data transmission resource in other cells. Alternatively, in this embodiment of the present application, the interference measurement resource may further include a pilot resource of a service beam of another user in the cell, or a pilot resource in another cell, which is not specifically limited in this embodiment of the present application. In this embodiment of the application, the number of the second terminal devices may be one or multiple, and this is not limited in this embodiment of the application.

In a possible implementation manner, the first configuration information includes first indication information, and the first indication information is used to indicate a frequency domain location of the interference measurement resource.

Specifically, the interference measurement resource may include a continuous segment of frequency domain resources, that is, a frequency domain continuous distribution of the interference measurement resource. Alternatively, the interference measurement resource may also be composed of a plurality of discontinuous frequency domain resources, or may also be an equally spaced frequency domain resource that obeys a specific density distribution, which is not limited in this embodiment of the present application.

In a possible implementation manner, the first configuration information includes second indication information, and the second indication information is used to indicate a symbol position of the interference measurement resource. The symbol in the embodiment of the present application refers to a time domain symbol, and may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a discrete fourier transform extended orthogonal frequency division multiplexing (DFTS-OFDM) symbol, which is not limited in the embodiment of the present application.

Specifically, the time domain of the interference measurement resource includes a single symbol, or a plurality of symbols that are consecutive or non-consecutive. In other words, the symbol position of the interference measurement resource may be a single symbol position (e.g., one of the symbols 0 to 13), or may be a plurality of consecutive or non-consecutive symbol positions.

By way of example, the interference measurement resource may include an interference measurement CSI-IM resource (CSI-IM-resource for interference), an interference measurement NZP-CSI-RS resource (NZP-CSI-RS-resource for interference) or an interference measurement ZP-CSI-RS resource (ZP-CSI-RS-resource for interference), which is not limited in this application. In an optional embodiment, the interference measurement resource may further include a resource for inter-cell interference measurement, which is not limited in this embodiment of the present application.

Hereinafter, the format of the interference measurement resource configuration is specifically described by taking the interference measurement resource as the CSI-IM resource as an example. It should be noted that the following examples are intended only to assist those skilled in the art in understanding and implementing embodiments of the present invention, and are not intended to limit the scope of embodiments of the present invention. Equivalent alterations and modifications may be effected by those skilled in the art in light of the examples set forth herein, and such alterations and modifications are intended to be within the scope of the embodiments of the invention.

Specifically, the interference measurement Resource configuration may be a newly defined CSI-IM Resource format (CSI-IM-Resource pattern), or a value of a parameter in an existing CSI-IM-Resource pattern may be added. By way of example, an example of a specific CSI-IM-Resource provided by the embodiments of the present application is shown below.

Specifically, when the value of subcarrier position (subarrierrlocation) -p0 in pattern0 or subarrierrlocation-p 1 in pattern1 is the newly added value of-1, the frequency domain of the current CSI-IM-Resource is considered as the whole bandwidth of the active BWP of the current serving cell of the first terminal device.

Or, when the value of the subcarrier position (subarrierlocation) -p0 in the pattern0 or subarrierlocation-p 1 in the pattern1 is an invalid value, the frequency domain of the current CSI-IM-Resource is considered as the whole bandwidth of the active BWP of the current serving cell of the first terminal device.

The newly defined pattern2 represents one symbol occupying the entire bandwidth of the first terminal device's current serving cell active BWP for the interference measurement resource frequency domain, and the symbol position (symbol location) -p2 is taken to represent the specific position of the symbol in one slot.

Specifically, the newly defined pattern3 represents one or more symbols occupying the entire bandwidth of the active BWP of the current serving cell of the first terminal device for the interference measurement resource frequency domain, and each value of the symbol position list (symbol location list) -p3 represents a specific position of one measurement symbol in one slot.

Specifically, the newly defined pattern4 represents one or more continuous symbols occupying the entire bandwidth of the active BWP of the current serving cell of the first terminal device in the time domain for the interference measurement resource frequency domain, the first symbol position (first symbol location) -p4 represents the time domain position of the first measurement symbol, and the last (last symbol location) -p4 represents the time domain position of the last measurement symbol; for example, first symbol location-p4 ═ 1, and lastsymbol location-p4 ═ 4 indicate that interference measurement requires measurement of symbols 1 to 4, for a total of 4 symbols.

Specifically, the newly defined pattern5 is represented as a symbol that the interference measurement resource occupies a continuous frequency domain, the first subcarrier position (first subcarrier location) -p5 represents the start frequency domain position of the measurement symbol, and the last (last subcarrier location) -p5 represents the end frequency domain position of the measurement symbol; the symbol position (symbol location) -p5 is a value indicating the specific position of the symbol in a slot.

Specifically, the newly defined pattern6 indicates that the interference measurement resource occupies a continuous or discontinuous symbol in the frequency domain, and the subcarrier position (subcarrier location) -p6 indicates the specific frequency domain position of the measurement resource. The symbol position (symbol location) -p5 is a value indicating the specific position of the symbol in a slot. For example, a bandwidth of a current service part (BWP) of a user is 10 Resource Block Groups (RBGs) in a frequency domain, a value of subarrierrlocation-p 6 is quantized based on 10 bits, the quantized bits sequentially represent RBGs in the frequency domain from low to high, a value of 0 represents that the measurement resource contains a current RBG, and a value of 1 represents that the measurement resource does not contain the current RBG.

It should be noted that the CSI-IM-Resource shown in the embodiments of the present application is only for example and not for limitation. For example, the CSI-IM-Resource in this embodiment may include at least one (i.e., one or more) of the patterns 0 through 6, or may not include a measurement Resource type (Resource type), which is not limited in this embodiment.

Optionally, the first configuration information further includes third indication information, where the third indication information is used to indicate a time domain attribute of the interference measurement resource, and the time domain attribute includes periodicity, aperiodicity, or semi-persistence. Specifically, the time domain attribute may refer to the description above, and for brevity, the description is not repeated here. As an example, the CSI-IM-Resource may further include a measurement Resource type (resourceType) for indicating that the interference measurement Resource is periodic, aperiodic or semi-static.

Optionally, in this embodiment of the application, at least two kinds of indication information among the first indication information, the second indication information, and the third indication information may be indicated in a joint indication manner.

Specifically, the aperiodic time domain attribute may be carried by an information element "CSI-AperiodicTriggerStateList", and the semi-persistent time domain attribute may be carried by an information element "CSI-semi persistent on pusch-TriggerStateList", which is not limited in this embodiment of the present application.

In one implementation, when the interference measurement resource is configured as a periodic resource, a period and a time offset (periodicityAndOffset) of the interference measurement resource need to be configured accordingly. By way of example, an example of a specific CSI-IM-Resource provided by the embodiments of the present application is shown below, where the CSI-IM-Resource includes a period of an interference measurement Resource and a time offset (periodicityAndOffset).

Optionally, when the time domain attribute of the interference measurement resource is periodic, the first configuration information further includes receiving beam information of the interference measurement resource. As an example, the receive beam information is, for example, a quasi-co-located QCL indication.

Specifically, the quasi-co-located QCL indicates reception beam information indicating that the first terminal device is configured to receive the interference measurement resource. The quasi-collocated QCL indication can be referred to the description above, and is not described herein for brevity.

When the QCL indication is absent, that is, the first configuration information does not include the QCL indication of the interference measurement resource, the first terminal device receives the interference measurement resource signal using the same reception beam as the current data channel or the control channel of the first terminal device. Here, the data channel is a Physical Downlink Shared Channel (PDSCH), and the control channel is a physical downlink control channel (PDSCH), for example. It should be noted that, the time domain property of the interference measurement resource is not limited, that is, the time domain property of the interference measurement resource may be periodic, semi-persistent, or aperiodic.

In a specific implementation, a QCL indication (QCL-Info) may be added to the CSI-IM-Resource to indicate the receive beam information of the interference measurement Resource. A specific example of CSI-IM-Resource provided in the embodiments of the present application is given below. Wherein, the interference measurement resource receiving beam is determined based on a pilot or channel resource associated with a Transmission Configuration Index (TCI) state identifier (TCI-StateId). Specifically, the same receive beam as the pilot resource associated with the TCI-sateld may be used, or the pilot resource may be used for angle of arrival (AOA) estimation, and the main lobe may be used to point to the receive beam with the same or similar interference measurement resource as the estimated value.

In another specific implementation, a QCL indicator (QCL-Info) may be added to the CSI-IM-resource set to indicate the receive beam information of the interference measurement resource. The following shows a specific example of the CSI-IM-resource set provided by the embodiments of the present application.

It should be noted that, in the embodiment of the present application, only the interference measurement Resource is taken as the CSI-IM-Resource, that is, the interference measurement Resource is configured as the CSI-IM-Resource pattern, which is described as an example, the interference measurement Resource may also be other resources, such as the CSI-RS-Resource, and the interference measurement Resource is configured as the CSI-RS-Resource pattern, which is not specifically limited in this embodiment of the present application.

Optionally, in this embodiment of the present application, the network device may further determine second configuration information, where the second configuration information is used to instruct the first terminal device to report a measurement result corresponding to the interference measurement resource.

In this embodiment of the present application, the name of the "second configuration information" is not specifically limited, for example, the "second configuration information" may also be referred to as "interference measurement reporting configuration". In the embodiment of the present application, the "first configuration information" and the "interference measurement reporting configuration" are used alternately, and when the difference is not emphasized, the expressions are consistent.

In one implementation, the second configuration information is used to instruct the first terminal device to report an interference measurement value corresponding to the interference measurement resource.

In another implementation manner, the second configuration information is used to instruct the first terminal device to report one or more of the following information: interference measurement resource identification, interference measurement value, channel measurement resource identification, channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP.

Specifically, the interference measurement value is the received energy of the interference measurement resource, which is described in detail in the following 330.

Specifically, the interference measurement resource identifier is a resource identifier of the interference measurement resource. The interference measurement resource identification may be, for example, at least one of: the CSI-IM resource identifier (CSI-IM-resource id), the NZP-CSI-RS resource identifier (NZP-CSI-RS-resource id), and the ZP-CSI-RS resource identifier (ZP-CSI-RS-resource id), which are not limited in the embodiments of the present application.

Here, the channel measurement resource identifier, the channel quality indicator, the signal to interference plus noise ratio SINR, the channel quality indicator CQI, the precoding matrix indicator PMI, the rank indicator RI, the received signal strength indicator RSSI, the reference signal received power RSRP, and the like may be referred to the description in the related art, and are not described in detail here.

320, the network device sends the first configuration information to the first terminal device.

In one implementation, the network device may send the first configuration information (i.e., the interference resource configuration) to the first terminal device through higher layer signaling (e.g., RRC signaling). For example, the network device may configure the interference measurement resource for the first terminal device through the CSI-AperiodicTriggerStateList in the RRC message. The CSI-AperiodiciTriggerStateList may include a plurality of CSI-AperiodiciTriggerStates, each CSI-AperiodiciTriggerState including CSI-Association reportConfigInfo, each Association reportConfigInfo including an interference measurement resource.

Optionally, the network device further sends the second configuration information to the first terminal device.

In one implementation, the network device may send the second configuration information to the first terminal device through higher layer signaling (e.g., RRC signaling). In a possible case, the first configuration information and the second configuration information may be carried in the same configuration information and sent to the terminal device.

And 330, the first terminal equipment carries out interference measurement on the interference measurement resource.

Specifically, the first terminal device determines an interference measurement resource according to the interference resource configuration, and then measures a signal on the interference measurement resource. After the first terminal device performs interference measurement to obtain a measurement result, the first terminal device may report the measurement result according to the interference measurement reporting configuration.

Specifically, the first terminal device may acquire the reception energy of the interference measurement resource, i.e., the interference measurement value, using the designated reception beam. Specifically, the manner of assigning the receiving beams is as described above in 310, and for brevity, will not be described again here.

Optionally, when the time domain of the interference measurement resource includes a plurality of symbols, the first terminal device may perform interference measurement on the plurality of symbols, and obtain a symbol-level average received power of the plurality of symbols, or a resource element-level average received power of the plurality of symbols, or a total received power of the plurality of symbols. Optionally, in this embodiment of the present application, the interference measurement value includes a symbol-level average received power, or a resource element-level average received power, or a total received power.

Specifically, the interference measurement mode of the first terminal device may include one or more of the following possible measurement modes.

In one possible measurement approach, the first terminal device may calculate an interference measurement resource symbol-level average received power. Specifically, when the time domain is a plurality of symbols, the total received power measured on the plurality of symbols may be averaged by the number of symbols, as shown below:

wherein i is the ith interference measurement symbol, N is the total number of interference measurement symbols, P_iIs the total received power of the ith symbol.

In another possible measurement manner, the first terminal device may calculate Resource Element (RE) level average received power of the interference measurement resource, where RE is a minimum time-frequency domain measurement unit. Specifically, when the time domain is one or more symbols, the measured total received power may be averaged by the number of REs, as shown below:

wherein i is the ith interference measurement symbol, N is the total number of interference measurement symbols, P_iIs the total received power of the ith symbol, M_iThe number of REs for the ith interference measurement symbol.

In another possible measurement, the first terminal device may calculate the symbol RE level average received power. Specifically, the first terminal device calculates the RE-level average received power for each symbol. When the interference measurement resource is a plurality of symbols, each symbol corresponds to a separate measurement value.

In another possible measurement, the first terminal device may calculate the symbol-level total received power. Specifically, when the interference measurement resource is a plurality of symbols, the total received power of each symbol may be calculated.

In another possible measurement manner, the first terminal device may calculate the total received power of the interference measurement resource, i.e. the total received power of all current interference measurement symbols.

In this embodiment of the present application, the method for calculating the interference measurement may be explicitly configured or implicitly indicated to the first terminal device by the network device.

Specifically, in one possible display configuration method, a new information bit may be defined in the interference measurement reporting configuration, and the information bit may be referred to as an interference measurement criterion (interference measurement criterion), for example, and is used to indicate a specific interference measurement method for a user. In another possible method of display configuration, an interference measurement method may be specified explicitly by a protocol, and the first terminal device performs interference measurement based on the interference measurement method specified by the protocol.

In a possible implicit configuration manner, the first terminal device may determine the interference measurement method by measuring the number of reporting resources included in the reporting configuration. For example, when the number of interference measurement reporting resources in the measurement reporting configuration is smaller than the number of interference measurement symbols, the first terminal device calculates the average received power at the symbol level of the interference measurement resources.

Optionally, in this embodiment of the present application, the first terminal device may report the interference measurement value according to the interference measurement reporting configuration, or report the interference measurement resource identifier and the interference measurement value of the interference measurement resource indicated by the interference measurement resource identifier.

Specifically, the first terminal device may select one or more interference measurement values from the determined current interference measurement values for quantitative reporting. The criterion for selecting the reported interference measurement value by the first terminal device may be an algorithm inside the first terminal device, for example, the first terminal device may select the first L reports with the largest or smallest interference measurement values, or may be explicitly configured or implicitly indicated to the first terminal device by the network device.

In a possible explicit configuration, a new information bit may be defined in the CSI measurement reporting configuration, where the information bit may be referred to as an interference reporting criterion (interfrequent criterion), for example, and is used to instruct the first terminal device to report the interference CRI corresponding to the maximum interference measurement value or the minimum interference measurement value and the corresponding interference measurement value. In a possible implicit configuration manner, the first terminal device may determine the interference measurement reported by the user through the number of reporting resources included in the CSI measurement reporting configuration.

For example, when the configured interference measurement resource only includes one measurement resource, for example, IM-resource #0, the first terminal device may report the resource ID of IM-resource #0 and the interference measurement value corresponding to the resource ID to the network device, or the first terminal device may report only the interference measurement value corresponding to IM-resource #0 to the network device.

For example, when the configured interference measurement resource includes two or more measurement resources, such as IM-resource #0 and IM-resource #1.. IM-resource # K, K ≧ 1, the first terminal device may select one or more interference measurement resource IDs and corresponding interference measurement values from the one or more measurement resources based on the above-mentioned specific criteria to report to the network device. Here, the IM-resource may be a CSI-IM-resource, a NZP-CSI-RS-resource, or a ZP-CSI-RS-resource, which is not limited in this embodiment.

Optionally, in this embodiment of the present application, when there are a plurality of interference measurement values, the first terminal device performs quantitative reporting on each interference measurement value in the plurality of interference measurement values through a bit, or performs quantitative reporting through a difference method.

Specifically, the quantization mode adopted by the first terminal device when performing quantization reporting may include one or more of the following modes.

In one possible quantization manner, when the reported interference measurement value is a value, the first terminal device performs quantization reporting on the interference measurement value by using X1 bits, where X1 is a positive integer.

In another possible quantization manner, when the reported interference measurement value is multiple (two or more) values, the first terminal device performs quantization reporting on the multiple interference measurement values by using X2 bits, where X2 is a positive integer. By way of example, each symbol may be ordered by time domain position, the symbol preceding the time domain position may occupy the first y bits of X2 bits, and so on, where y is a positive integer less than or equal to X2.

In another possible quantization manner, when the reported interference measurement value is multiple values, the first terminal device may report the interference measurement value in a differential quantization manner. Specifically, the first terminal device reports a first measurement value by using X3 bits, reports a difference between a second measurement value and the first measurement value by using X4 bits, reports a difference between a third measurement value and the first measurement value by using X5 bits, and so on, where X3, X4, and X5 are positive integers, respectively.

It should be noted that, in the embodiment of the present application, the reported interference measurement value may be a linear measurement value or a measurement value in dB, which is not limited in the embodiment of the present application.

In the embodiment of the application, the first terminal device reports the interference measurement value in a quantitative manner, so that the occupation of transmission bandwidth can be reduced, and the data transmission efficiency can be improved.

It should be noted that, when the first terminal device uses PUCCH or PUSCH to perform CSI reporting and/or beam reporting, the protocol needs to support reporting formats corresponding to the various reporting amounts, for example, as shown in table 3 below:

TABLE 3

Domain	Bit length
		IM-CRI	M
Amount of interference	N

Wherein, M represents the quantization bit number of the interference measurement resource identifier, and N represents the quantization bit number of the interference measurement report.

It should be noted that, in this embodiment, it is not excluded that the first terminal device uses other uplink transmission manners to report the interference measurement value, for example, the first terminal device may also use a data unit encapsulated by the MAC-CE and the like to report the interference measurement value, and this is not limited in this embodiment.

Optionally, in this embodiment of the present application, the first terminal device reports one or more of the following information to the network device: interference measurement resource identification, interference measurement value, channel measurement resource identification, channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP.

Therefore, in this embodiment of the present application, the network device indicates, by sending the first configuration information to the first terminal device, an interference measurement resource of the first terminal device, where a frequency domain of the interference measurement resource is a full bandwidth of a currently activated bandwidth portion BWP of the first terminal device, and then the first terminal device performs interference measurement on the interference measurement resource, so that the first terminal device may not perform interference measurement on a pilot resource of an interference beam, thereby reducing system signaling overhead. In addition, the network device does not need to configure pilot frequency resources for interference measurement, and the system pilot frequency overhead can be reduced.

Fig. 4 shows a schematic flow chart of a method for interference measurement according to an embodiment of the present application. It should be understood that fig. 4 shows steps or operations of a method of interference measurement, but these steps or operations are merely examples, and other operations or variations of the operations in fig. 4 may also be performed by embodiments of the present application. Moreover, the various steps in FIG. 4 may be performed in a different order presented in FIG. 4, and it is possible that not all of the operations in FIG. 4 may be performed. The network device and the first terminal device in fig. 4 may be the corresponding network device and terminal device in fig. 3, respectively, and the second terminal device in fig. 4 may be the other terminal device in fig. 3, which is not limited in this embodiment of the present application.

401, the network device sends interference measurement configuration information to the first terminal device.

Specifically, the interference measurement configuration information includes an interference measurement resource configuration of the first terminal device, where the interference measurement resource configuration is used to indicate an interference measurement resource of the first terminal device, and the frequency domain of the interference measurement resource is a full bandwidth of a currently activated bandwidth portion BWP of the first terminal device.

Here, the interference measurement configuration information is only associated with the interference measurement resources, i.e. the interference measurement configuration information may not include the channel measurement resource configuration of the first terminal device. Specifically, the interference measurement resource configuration and the interference measurement resource may refer to the description in fig. 3, and for brevity, no further description is provided here.

Optionally, in this embodiment of the present application, the interference measurement configuration information further includes an interference measurement reporting configuration, where the interference measurement reporting configuration is used to instruct the first terminal device to report an interference measurement value corresponding to the interference measurement resource. Specifically, the configuration for reporting the interference measurement and the interference measurement value may refer to the description above, and for brevity, the description is omitted here.

The network device dynamically activates interference measurements 402.

Specifically, the network device may send time-frequency domain resource scheduling information of one or more time slots to the first terminal device through the DCI, and dynamically trigger interference measurement and reporting of the first terminal device.

It should be noted that, when the time domain attribute of the interference measurement resource is aperiodic or semi-static, the network device sends the downlink control information to the first terminal device, where the downlink control information is used to trigger the first terminal device to measure the interference measurement resource. When the time domain attribute of the interference measurement resource is periodic, the first terminal device may periodically perform interference measurement according to the interference measurement resource configuration, without dynamically activating the first terminal device by the network device to perform interference measurement, that is, step 402 may be omitted.

In this embodiment, the DCI may use an existing DCI format, or define a new DCI format, or add a new field in the existing format, or use a special value combination of the existing field, for example, set all fields of an automatic hybrid repeat request (HARQ), MCS, and the like to 0 or 1, which is not limited in this embodiment.

Optionally, in this embodiment of the present application, the DCI includes one or more of the following information: CSI request, TCI information, BWP information, or other information. The CSI request is an information bit used for triggering aperiodic or semi-static CSI measurement. Specifically, the CSI request may indicate a trigger state ID (e.g., trigger state # x).

The DCI signaling triggering the interference measurement is detailed in table 4.

TABLE 4

DCI
			CSI request	Indicating trigger state ID (trigger state # x)
	TCI information	Indicating interference measurement receive beam information
			BWP information	Indicating interference measurement band information

And 403, the network equipment performs data scheduling and transmission on the second terminal equipment.

Specifically, the resource for the second terminal device to perform data transmission may be an interference measurement resource of the terminal device. Here, the second terminal device may be another terminal device within the cell or a terminal device of another cell. Specifically, 402 and 403 may be performed simultaneously, which is not limited in this embodiment of the application.

404, the first terminal device performs interference measurements.

Specifically, the first terminal device determines an interference measurement resource according to the interference resource configuration, and then measures a signal on the interference measurement resource to obtain an interference measurement value corresponding to the interference measurement resource. The interference measurement mode of the first terminal device may refer to the description of 330 in fig. 3, and for brevity, the description is not repeated here.

And 405, the first terminal equipment reports the measurement result.

Specifically, the first terminal device may report the interference measurement value according to the interference measurement reporting configuration, or report the interference measurement resource identifier and the interference measurement value of the interference measurement resource indicated by the interference measurement resource identifier. Specifically, the method for reporting the interference measurement value may refer to the description above, and for brevity, the description is omitted here.

Optionally, when the interference measurement value is multiple, the first terminal device performs quantitative reporting on each interference measurement value in the multiple interference measurement values through a bit, or performs quantitative reporting through a difference method. Specifically, the manner of quantitative reporting by the first terminal device may refer to the description above, and for brevity, details are not repeated here.

Correspondingly, the network device receives the interference measurement result reported by the first terminal device.

Specifically, the network device estimates a strong interference beam of a current service beam of the first terminal device based on an interference measurement value reported by the first terminal device, and avoids pairing transmission of a strong interference beam when multi-user transmission scheduling is performed, that is, strong interference beam pairing is excluded during scheduling or weak interference beam pairing is preferentially performed, so that weak interference among a plurality of beams scheduled simultaneously is ensured, thereby reducing adverse effects of interference in a cell on data transmission and improving system capacity.

Therefore, in this embodiment of the present application, the first terminal device measures and reports the interference measurement resource, where the frequency domain of the interference measurement resource is the full bandwidth of the currently activated bandwidth portion BWP of the first terminal device, so that the first terminal device may not perform interference measurement on the pilot resource of the interference beam, thereby reducing the system signaling overhead. In addition, the network device does not need to configure pilot frequency resources for interference measurement, and the system pilot frequency overhead can be reduced.

Fig. 5 is a schematic flow chart of another method for interference measurement provided in the embodiment of the present application. It should be understood that fig. 5 shows steps or operations of a method of interference measurement, but these steps or operations are merely examples, and other operations or variations of the operations in fig. 5 may also be performed by embodiments of the present application. Moreover, the various steps in FIG. 5 may be performed in a different order presented in FIG. 5, and it is possible that not all of the operations in FIG. 5 may be performed. The network device and the first terminal device in fig. 5 may be the corresponding network device and the corresponding first terminal device in fig. 3, respectively, and the second terminal device in fig. 5 may be the second terminal device in fig. 3, which is not limited in this embodiment of the present invention.

501, a network device sends measurement configuration information to a first terminal device.

Specifically, the measurement configuration information includes a channel measurement resource configuration and an interference measurement resource configuration of the first terminal device. At this time, the measurement configuration information may also be referred to as CSI measurement configuration. Wherein the interference measurement resource configuration is used to indicate an interference measurement resource of the first terminal device, and a frequency domain of the interference measurement resource is a full bandwidth of a currently active bandwidth part BWP of the first terminal device. The channel measurement resource configuration is used to indicate the channel measurement resource of the first terminal device, and here, the channel measurement resource may be referred to as described in the prior art. Specifically, the interference measurement resource configuration and the interference measurement resource may refer to the description in fig. 3, and for brevity, no further description is provided here.

Optionally, in this embodiment of the present application, the measurement configuration information further includes an interference measurement reporting configuration, where the interference measurement reporting configuration is used to instruct the first terminal device to report an interference measurement value corresponding to the interference measurement resource. Or, the interference measurement reporting configuration is configured to instruct the first terminal device to report one or more of the following information: interference measurement resource identification, interference measurement value, channel measurement resource identification, channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP. Specifically, the interference measurement reporting configuration may refer to the description above, and for brevity, is not described herein again.

502, the network device sends pilot to the first terminal device and the second terminal device for data scheduling and transmission.

Specifically, the network device may send pilot and downlink data. The pilot transmission, data scheduling and transmission can be referred to the description of the prior art, and will not be described in detail here.

The network device dynamically activates interference measurements, i.e. CSI measurements 503.

Specifically, the CSI measurement and reporting of the first terminal device are dynamically triggered through the DCI.

It should be noted that, when the time domain attribute of the CSI measurement resource is aperiodic or semi-static, the network device sends the downlink control information to the first terminal device, where the downlink control information is used to trigger the first terminal device to perform CSI measurement. When the time domain attribute of the CSI measurement resource is periodic, the first terminal device may periodically perform interference measurement according to the measurement resource configuration, without the network device dynamically activating the first terminal device to perform CSI measurement, that is, step 502 may be omitted.

In this embodiment, the DCI may use an existing DCI format, or define a new DCI format, or add a new field in the existing format, or use a special value combination of existing fields, for example, set all fields of an automatic hybrid repeat request (HARQ), a Modulation and Coding Scheme (MCS) to 0 or 1, which is not limited in this embodiment.

Optionally, in this embodiment of the present application, the DCI may include one or more of the following information: CSI request, interference measurement resources, TCI information, BWP information, or other information. The DCI signaling triggering the interference measurement is detailed in table 5.

TABLE 5

DCI
			CSI request	Indicating trigger state ID (trigger state # x)
	Interference measurement resource	Indicating interference resource information triggered by current measurements
			TCI information	Indicating interference measurement receive beam information
	BWP information	Indicating interference measurement band information

The first terminal device performs channel and interference measurements, i.e. CSI measurements, 504.

Specifically, the first terminal device determines a channel measurement resource and an interference measurement resource according to the measurement configuration information, and then measures signals on the channel measurement resource and the interference measurement resource respectively to obtain measurement results. Here, the measurement result may include a CSI measurement result, and/or may include an interference measurement value corresponding to the interference measurement resource.

Specifically, the CSI measurement result may include, for example: at least one of channel quality indication, signal to interference plus noise ratio SINR, channel quality indication CQI, precoding matrix indication PMI, rank indication RI, received signal strength indication RSSI, reference signal received power RSRP, and the like, which is not limited in the present application.

And 505, the first terminal equipment reports the measurement result.

Specifically, the first terminal device reports the measurement result to the network device based on the interference measurement reporting configuration. Specifically, the reported information may include one or more of the following information: an interference measurement resource identifier, an interference measurement value, a channel measurement resource identifier, a signal to interference plus noise ratio (SINR), a CQI, a PMI, an RI, a Received Signal Strength Indication (RSSI), a Reference Signal Receiving Power (RSRP), a CRI, and the like, which are not specifically limited in this embodiment. Specifically, the determining of the interference measurement value and the reporting of the interference measurement value by the first terminal device may refer to the description above, and are not described herein again to avoid repetition.

Specifically, the network device estimates mutual interference between beams based on a measurement result reported by the first terminal device, and avoids pairing transmission of a beam with strong interference when multi-user transmission scheduling is performed, that is, eliminates pairing of a beam with strong interference when scheduling is performed, or preferentially performs pairing of a beam with weak interference, so as to ensure that interference among a plurality of beams scheduled simultaneously is weak, thereby reducing adverse influence of interference in a cell on data transmission and improving system capacity.

Based on the method of the above embodiment, the communication apparatus provided by the present application will be described below.

Fig. 6 shows a schematic structural diagram of a communication device provided in the present application, where the communication device 600 includes: a communication unit 610 and a processing unit 620.

A communication unit 610, configured to receive first configuration information from a network device, where the first configuration information is used to indicate an interference measurement resource of the terminal device, and a frequency domain of the interference measurement resource is a full bandwidth of a currently active bandwidth portion BWP of the terminal device.

A processing unit 620, configured to perform interference measurement on the interference measurement resource.

Optionally, the communication unit 610 is also referred to as a transceiver unit (module), and may include a receiving unit (module) and/or a transmitting unit (module), which are respectively configured to perform the steps of receiving and transmitting by the terminal device in fig. 3, fig. 4, and fig. 5 and the method embodiment. Optionally, the communication device 600 may further include a storage unit for storing instructions executed by the communication unit 610 and the processing unit 620.

Communication apparatus 600 is a terminal device, and may be a chip in the terminal device. When the communication device is a terminal equipment, the processing unit may be a processor and the communication unit may be a transceiver. The communication device may further comprise a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the communication equipment to execute the method. When the communication device is a chip within a terminal equipment, the processing unit may be a processor, and the communication unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes the instructions stored in the storage unit (e.g., register, cache memory, etc.), or the storage unit (e.g., read-only memory, random access memory, etc.) in the terminal device, which is located outside the chip, to make the communication device perform the operations performed by the terminal device in the above-mentioned method embodiments

It can be clearly understood by those skilled in the art that, when the steps performed by the communication apparatus 600 and the corresponding beneficial effects can refer to the related description of the terminal device in the foregoing method embodiment, for brevity, no further description is provided herein.

It is to be understood that the communication unit 610 may be implemented by a transceiver and the processing unit 620 may be implemented by a processor. The storage unit may be implemented by a memory. As shown in fig. 7, the communication device 700 may include a processor 710, a memory 720, and a transceiver 730.

The communication apparatus 600 shown in fig. 6 or the communication apparatus 700 shown in fig. 7 can implement the foregoing embodiments and the steps performed by the terminal device in fig. 3, fig. 4, and fig. 5, and similar descriptions can refer to the descriptions in the foregoing corresponding methods. To avoid repetition, further description is omitted here.

Fig. 8 shows a schematic structural diagram of a communication device 800 provided in the present application, where the communication device 800 includes a processing unit 810 and a communication unit 820.

A processing unit 810, configured to determine first configuration information, where the first configuration information is used to indicate an interference measurement resource of a first terminal device, and a frequency domain of the interference measurement resource is a full bandwidth of a currently active bandwidth portion BWP of the first terminal device.

A communication unit 820, configured to send the first configuration information to the first terminal device.

Optionally, the communication unit 820 may include a receiving unit (module) and/or a sending unit (module) for performing the steps of receiving and sending by the network device in fig. 3, 4, and 5 and the method embodiments, respectively. Optionally, the communication device 800 may further include a storage unit for storing instructions executed by the communication unit 820 and the processing unit 810.

The apparatus 800 is a network device in the method embodiment, and may also be a chip within the network device. When the apparatus is a network device, the processing unit may be a processor and the communication unit may be a transceiver. The apparatus may further comprise a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the communication equipment to execute the method. When the apparatus is a chip within a network device, the processing unit may be a processor, the communication unit may be an input/output interface, a pin or a circuit, etc.; the processing unit executes instructions stored in a storage unit (e.g., a register, a cache, etc.) inside the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) outside the chip, so as to cause the communication device to perform the operations performed by the network device in the above method embodiments.

It is clear to those skilled in the art that, when the steps performed by the apparatus 800 and the corresponding advantages are described in the foregoing description of the network device in the method embodiment, for brevity, no further description is provided herein.

It is to be understood that the communication unit 820 may be implemented by a transceiver and the processing unit 810 may be implemented by a processor. The storage unit may be implemented by a memory. As shown in fig. 9, communications apparatus 900 may include a processor 910, a memory 920, and a transceiver 930.

The communication apparatus 800 shown in fig. 8 or 900 shown in fig. 9 can implement the foregoing method embodiments and the steps performed by the network devices in fig. 3, 4 and 5, and similar descriptions may refer to the descriptions in the foregoing corresponding methods. To avoid repetition, further description is omitted here.

The network device in each of the above device embodiments corresponds to the terminal device or the terminal device in the terminal device and method embodiments, and the corresponding module or unit executes the corresponding steps. For example, the method of the communication unit (or transceiver unit, transceiver) performs the steps of transmitting and/or receiving in the method embodiment (or performed by the transmitting unit, the receiving unit, respectively), and the steps other than transmitting and receiving may be performed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The sending unit and the receiving unit can form a transceiving unit, and the transmitter and the receiver can form a transceiver, so that transceiving functions in the method embodiment are realized together; the processor may be one or more.

It should be understood that the above division of the units is only a functional division, and other division methods may be possible in actual implementation.

The terminal device or the network device may be a chip, and the processing unit may be implemented by hardware or software. When implemented in hardware, the processing unit may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processing unit may be a general-purpose processor implemented by reading software code stored in a memory unit, which may be integrated in the processor or may be located separately from the processor.

Fig. 10 is a schematic structural diagram of a terminal device 1000 according to the present application. For convenience of explanation, fig. 10 shows only main components of the terminal device. As shown in fig. 10, the terminal apparatus 1000 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The terminal device 1000 can be applied to a system as shown in fig. 1, and performs the functions of the terminal device in the above method embodiment.

The processor is mainly configured to process the communication protocol and the communication data, control the entire terminal device, execute a software program, process data of the software program, and control the terminal device to perform the actions described in the above method embodiments. The memory is used primarily for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data.

Those skilled in the art will appreciate that fig. 10 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this application.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, where the baseband processor is mainly used to process a communication protocol and communication data, and the central processing unit is mainly used to control the whole terminal device, execute a software program, and process data of the software program. The processor in fig. 10 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

For example, in the embodiment of fig. 10, the antenna and the control circuit with transceiving functions can be regarded as the transceiving unit 1001 of the terminal device 1000, and the processor with processing functions can be regarded as the processing unit 1002 of the terminal device 1000. As shown in fig. 10, the terminal device 1000 includes a transceiving unit 1001 and a processing unit 1002. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Alternatively, a device for implementing a receiving function in the transceiving unit 1001 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 1001 may be regarded as a transmitting unit, that is, the transceiving unit 1001 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc.

The terminal device 1000 shown in fig. 10 can implement various processes related to the terminal device in the method embodiments of fig. 3, 4 and 5. The operations and/or functions of the modules in the terminal device 1000 are respectively for implementing the corresponding flows in the above method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.

Fig. 11 is a schematic structural diagram of a network device provided in an embodiment of the present application, which may be a schematic structural diagram of a network device, for example. As shown in fig. 11, the network device 1100 may be applied to the system shown in fig. 1, and performs the functions of the network device in the above method embodiments.

The network can be applied to a communication system as shown in fig. 1, and performs the functions of the network device in the above method embodiment. The network device 1100 may include one or more radio frequency units, such as a Remote Radio Unit (RRU) 1110 and one or more baseband units (BBUs) (which may also be referred to as Digital Units (DUs)) 1120.

The RRU 1110 may be referred to as a transceiver unit, transceiver circuitry, or transceiver, etc., which may include at least one antenna 1111 and a radio frequency unit 1112. The RRU 1110 is mainly used for transceiving radio frequency signals and converting the radio frequency signals and baseband signals, for example, for sending indication information in the above method embodiments. The RRU 1110 and the BBU1120 may be physically disposed together or may be physically disposed separately, i.e., distributed base stations.

The BBU1120 is a control center of the base station, and may also be referred to as a processing unit, and is mainly used for performing baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) 1120 can be used to control a network device to execute the operation flow of the above method embodiment with respect to the network device.

In an embodiment, the BBU1120 may be formed by one or more boards, and a plurality of boards may jointly support a radio access network (e.g., an NR network) with a single access indication, or may respectively support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks). The BBU1120 also includes a memory 1121 and a processor 1122, the memory 1121 being used to store the necessary instructions and data. The processor 1122 is configured to control the base station to perform necessary actions, for example, to control the network device to execute the operation procedure related to the network device in the above-described method embodiment. The memory 1121 and processor 1122 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the network device 1100 shown in fig. 11 is capable of implementing various processes involving the network device in the method embodiments of fig. 3, 4, and 5. The operations and/or functions of the respective modules in the network device 1100 are respectively configured to implement the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.

It should be noted that the communication unit in the embodiment of the present application may also be referred to as a transceiver unit or a transceiver module.

It should be understood that the processing means may be a chip. For example, the processing Device may be a Field-Programmable Gate Array (FPGA), an Application-Specific Integrated Circuit (ASIC), a System on Chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal processing Circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other Integrated chips.

In implementation, the steps of the method provided by this embodiment may be implemented by hardware integrated logic circuits in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The processor in the embodiments of the present application may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will be appreciated that the memory or storage units in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the present application further provides a communication system, which includes a sending end device and a receiving end device. For example, the sending end device is the network device in the above embodiment, and the receiving end device is the terminal device in the above embodiment; or, the sending end device is the terminal device in the above embodiment, and the receiving end device is the network device in the above embodiment.

The embodiments of the present application also provide a computer-readable medium, on which a computer program is stored, and the computer program, when executed by a computer, implements the method in any of the above embodiments.

The embodiment of the present application further provides a computer program product, and when being executed by a computer, the computer program product implements the method in any one of the above embodiments.

An embodiment of the present application further provides a system chip, where the system chip includes: a processing unit and a communication unit. The processing unit may be, for example, a processor. The communication unit may be, for example, an input/output interface, a pin or a circuit, etc. The processing unit can execute computer instructions to cause a chip in the communication device to execute any one of the methods provided by the embodiments of the present application.

Optionally, the computer instructions are stored in a storage unit.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions according to the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Claims

1. An interference measurement method, comprising:

a first terminal device receives first configuration information from a network device, where the first configuration information is used to indicate an interference measurement resource of the first terminal device, the first configuration information includes first indication information, the first indication information is used to indicate a frequency domain position of the interference measurement resource, and when the first indication information takes a value of-1 or an invalid value, a frequency domain of the interference measurement resource is a full bandwidth of a currently activated bandwidth portion BWP of the first terminal device;

2. The method of claim 1, wherein the time domain of the interference measurement resource comprises a single symbol or a plurality of symbols that are consecutive or non-consecutive.

3. The method according to claim 1 or 2, wherein the first configuration information comprises second indication information indicating symbol positions of the interference measurement resources.

4. The method of claim 1 or 2, wherein the first configuration information further comprises a quasi co-located QCL indication of the interference measurement resource when a time domain attribute of the interference measurement resource is periodic.

5. The method of claim 1 or 2, wherein the first terminal device performs interference measurement on the interference measurement resource, and wherein the method comprises:

6. The method according to claim 1 or 2, wherein the interference measurement resource is used for data transmission by a second terminal device other than the first terminal device.

7. The method according to claim 1 or 2, wherein when the time domain of the interference measurement resource comprises a plurality of symbols, the first terminal device performs interference measurement on the interference measurement resource, comprising:

8. The method of claim 1 or 2, further comprising:

the first terminal device receives second configuration information from the network device, where the second configuration information is used to instruct the first terminal device to report an interference measurement value corresponding to the interference measurement resource.

9. The method of claim 8, wherein when the interference measurement value is multiple, the first terminal device reports each of the multiple interference measurement values quantitatively by using bits or by using a difference value.

10. The method of any one of claims 1, 2, and 9, further comprising:

11. A method of interference measurement, comprising:

the method comprises the steps that a network device determines first configuration information, wherein the first configuration information is used for indicating interference measurement resources of a first terminal device, the first configuration information comprises first indication information, the first indication information is used for indicating frequency domain positions of the interference measurement resources, and when the first indication information takes a value of-1 or an invalid value, the frequency domain of the interference measurement resources is the full bandwidth of a currently activated bandwidth part BWP of the first terminal device;

12. The method of claim 11, wherein the time domain of the interference measurement resource comprises a single symbol or a plurality of symbols that are consecutive or non-consecutive.

13. The method according to claim 11 or 12, wherein the first configuration information comprises second indication information indicating symbol positions of the interference measurement resources.

14. The method according to claim 11 or 12, wherein the interference measurement resource is used for data transmission by a second terminal device other than the first terminal device.

15. The method of claim 11 or 12, further comprising:

and the network equipment sends second configuration information to the first terminal equipment, wherein the second configuration information is used for indicating the first terminal equipment to report an interference measurement value corresponding to the interference measurement resource.

16. A communication apparatus, the communication apparatus being a terminal device or a chip in the terminal device, comprising:

a communication unit, configured to receive first configuration information from a network device, where the first configuration information is used to indicate an interference measurement resource of the terminal device, and the first configuration information includes first indication information, where the first indication information is used to indicate a frequency domain position of the interference measurement resource, and when the first indication information takes a value of-1 or an invalid value, a frequency domain of the interference measurement resource is a full bandwidth of a currently active bandwidth portion BWP of the terminal device;

and the processing unit is used for carrying out interference measurement on the interference measurement resources.

17. The communications apparatus according to claim 16, wherein the communications unit is specifically configured to receive signals transmitted on the interference measurement resource using a same receive beam as a current data channel or a control channel of the terminal device;

the processing unit is specifically configured to perform interference measurement on the signal.

18. The communications apparatus as claimed in claim 16 or 17, wherein when the time domain of the interference measurement resource includes a plurality of symbols, the processing unit is specifically configured to perform interference measurement on the plurality of symbols, and obtain the total received power of the plurality of symbols, or the symbol-level average received power of the plurality of symbols, or the resource element-level average received power of the plurality of symbols.

19. The communications apparatus of claim 16 or 17, wherein the communications unit is further configured to receive second configuration information from the network device, and the second configuration information is used to instruct the terminal device to report an interference measurement value corresponding to the interference measurement resource.

20. A communication apparatus, the communication apparatus being a network device or a chip in the network device, comprising:

a processing unit, configured to determine first configuration information, where the first configuration information is used to indicate an interference measurement resource of a first terminal device, where the first configuration information includes first indication information, where the first indication information is used to indicate a frequency domain position of the interference measurement resource, and when the first indication information takes a value of-1 or an invalid value, a frequency domain of the interference measurement resource is a full bandwidth of a currently activated bandwidth portion BWP of the first terminal device;

a communication unit, configured to send the first configuration information to the first terminal device.

21. The communications apparatus of claim 20, wherein the communications unit is further configured to send second configuration information to the first terminal device, and wherein the second configuration information is used to instruct the first terminal device to report an interference measurement value corresponding to the interference measurement resource.

22. A communications apparatus, comprising a processor coupled to a memory and configured to execute instructions in the memory to implement the method of any of claims 1-15.

23. A computer storage medium, characterized in that the computer storage medium has stored therein a program code for instructing execution of instructions in a method according to any one of claims 1-15.