Method, terminal device and network device for wireless communication

Abstract

Embodiments of the present application provide a wireless communication method, a terminal device and a network device. The network device can indicate the terminal device to measure CSI under different PDSCH resource overlap assumptions through resource overlap type information, so as to perform PDSCH flexible scheduling under different resource overlap conditions and support simultaneous transmission of multiple TRPs based on multiple DCIs. The wireless communication method comprises: a terminal device receives a first CSI reporting configuration, wherein the first CSI reporting configuration at least comprises resource overlap type information; and the terminal device performs CSI measurement according to the resource overlap type information.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a wireless communication method, terminal device, and network device. Background Technology

[0002] In order for network devices to perform reasonable scheduling, terminal devices need to report downlink Channel State Information (CSI) so that network devices can determine the terminal's scheduling information, such as the number of transmission layers, precoding matrix, transmit beam, and modulation and coding scheme. Specifically, the terminal device's CSI reporting is based on the CSI reporting configuration (CSI-ReportConfig) indicated by the network device. The uplink resources used by the terminal device to report CSI, as well as the downlink reference signal and measurement subband used for CSI measurement, are all indicated through the CSI reporting configuration.

[0003] The terminal device reports one CSI for each CSI reporting configuration. This CSI is calculated based on the channel measurement resources and interference measurement resources configured in the network and is used to obtain the channel information of a transmission / reception point (TRP). In a multi-TRP transmission scheme based on multiple downlink control information (DCI), two TRPs independently schedule the same terminal device's Physical Downlink Shared Channel (PDSCH). The corresponding PDSCH physical resources can be completely overlapping, partially overlapping, or non-overlapping. Under different resource overlap conditions, the corresponding CSI will also be different due to different interference. How to measure and report CSI is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a wireless communication method, a terminal device, and a network device. The network device can instruct the terminal device to measure CSI under different PDSCH resource overlap assumptions through resource overlap type information, thereby enabling flexible scheduling of PDSCH under different resource overlap conditions and supporting simultaneous transmission of multiple TRPs based on multiple DCIs.

[0005] In a first aspect, a wireless communication method is provided, the method comprising:

[0006] The terminal device receives a first CSI reported configuration, which includes at least resource overlap type information;

[0007] The terminal device performs CSI measurements based on the resource overlap type information.

[0008] Secondly, a wireless communication method is provided, the method comprising:

[0009] The network device sends a first CSI reporting configuration to the terminal device. The first CSI reporting configuration includes at least resource overlap type information, which is used to instruct the terminal device to perform CSI measurement according to the indicated resource overlap type.

[0010] Thirdly, a terminal device is provided for performing the method described in the first aspect above.

[0011] Specifically, the terminal device includes a functional module for performing the method described in the first aspect above.

[0012] Fourthly, a network device is provided for performing the method described in the second aspect above.

[0013] Specifically, the network device includes a functional module for performing the method described in the second aspect above.

[0014] Fifthly, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method described in the first aspect above.

[0015] In a sixth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the method described in the second aspect above.

[0016] In a seventh aspect, an apparatus is provided for implementing the method in any one of the first to second aspects described above.

[0017] Specifically, the device includes a processor for retrieving and running a computer program from a memory, causing a device equipped with the device to perform the method described in any of the first to second aspects above.

[0018] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects described above.

[0019] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects described above.

[0020] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects described above.

[0021] Through the above technical solution, network devices can instruct terminal devices to measure CSI under different PDSCH resource overlap assumptions by using resource overlap type information, thereby enabling flexible scheduling of PDSCH under different resource overlap conditions and supporting simultaneous transmission of multiple TRPs based on multiple DCIs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a communication system architecture used in an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of a downlink noncoherent transmission based on multiple PDCCHs provided in this application.

[0024] Figure 3 This is a schematic diagram of the CSI measurement resource configuration corresponding to a CSI reporting configuration provided in this application.

[0025] Figure 4 This is a schematic flowchart of a wireless communication method provided according to an embodiment of this application.

[0026] Figure 5 This is a schematic diagram illustrating channel measurement and interference measurement based on resource overlap type, according to an embodiment of this application.

[0027] Figure 6 This is a schematic block diagram of a terminal device provided according to an embodiment of this application.

[0028] Figure 7 This is a schematic block diagram of a network device provided according to an embodiment of this application.

[0029] Figure 8 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0030] Figure 9 This is a schematic block diagram of an apparatus provided according to an embodiment of this application.

[0031] Figure 10 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0033] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, or other communication systems.

[0034] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0035] In some embodiments, the communication system in this application can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0036] In some embodiments, the communication system in this application can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0037] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0038] Terminal devices can be stations (STs) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0039] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0040] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0041] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0042] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a network device or base station (gNB) in vehicle-mounted equipment, wearable devices, and NR networks, or a network device in a future evolved PLMN network or NTN network, etc.

[0043] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In some embodiments, the network device may also be a base station located on land, water, or other similar locations.

[0044] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0045] For example, the communication system 100 used in the embodiments of this application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0046] Figure 1 An exemplary embodiment shows a network device and two terminal devices. In some embodiments, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit this.

[0047] In some embodiments, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this application.

[0048] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0049] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0050] The terminology used in the embodiments section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0051] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0052] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0053] In this embodiment of the application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0054] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0055] To facilitate a better understanding of the embodiments of this application, the downlink noncoherent transmission related to this application will be described.

[0056] In NR systems, incoherent downlink and uplink transmissions based on multiple transmission / reception points (TRPs) are introduced. The backhaul connections between TRPs can be ideal or non-ideal. In an ideal backhaul, TRPs can exchange information quickly and dynamically; in a non-ideal backhaul, due to higher latency, TRPs can only exchange information quasi-statically. In downlink incoherent transmission, multiple TRPs can independently schedule multiple Physical Downlink Shared Channels (PDSCHs) of a single terminal using different control channels, or they can use the same control channel to schedule the transmission of different TRPs. Data from different TRPs uses different transport layers; the latter is only suitable for ideal backhaul scenarios.

[0057] For downlink transmissions scheduled using multiple Physical Downlink Control Channels (PDCCHs), the scheduled PDSCHs can be transmitted in the same or different time slots. The terminal needs to support simultaneous reception of PDCCHs and PDSCHs from different TRPs. When the terminal sends back Acknowledgement (ACK) / Negative Acknowledgement (NACK) and Channel State Information (CSI), it can send the ACK / NACK and CSI back to the respective TRPs transmitting the corresponding PDSCHs (e.g., TRPs). Figure 2 A in the middle can also be merged and reported to a TRP (such as A). Figure 2(B) The former can be applied to both ideal backhaul and non-ideal backhaul scenarios, while the latter can only be used in ideal backhaul scenarios. Downlink Control Information (DCI) transmitted by different TRPs for scheduling PDSCH can be carried by different Control Resource Sets (CORESETs). That is, the network side configures multiple CORESETs, and each TRP uses its own CORESET for scheduling; thus, different TRPs can be distinguished by CORESETs. For example, the network device can configure a CORESET group index for each CORESET, with different indices corresponding to different TRPs. When the terminal feeds back CSI, it needs to feed back the CSI corresponding to each TRP separately. The CSI includes Rank Indication (RI), Precoding Matrix Indicator (PMI), Channel Quantity Indicator (CQI), etc., which can be used for downlink transmission scheduling for their respective TRPs.

[0058] To facilitate a better understanding of the embodiments of this application, the downlink CSI reporting related to this application will be explained.

[0059] In order for network devices to perform reasonable scheduling, terminals need to report downlink channel state information (CSI) so that the base station can determine the terminal's scheduling information, such as the transmission layer number, precoding matrix, transmit beam, and modulation and coding scheme. Specifically, the terminal's CSI reporting is based on the CSI reporting configuration indicated by the network device. The uplink resources used by the terminal for CSI reporting, as well as the downlink reference signal and measurement subband used for CSI measurement, are all indicated through the CSI reporting configuration. The CSI reporting configuration (CSI-ReportConfig) can be shown as follows: Figure 3As shown, the resources used for CSI measurements include two types: Channel Measurement Resource (CMR) and Interference Measurement Resource (IMR). Specifically, CMR can be several Non-Zero Power Channel State Information-Reference Signals (NZP-CSI-RS) or Synchronization Signal Blocks (SSBs), while Interference Measurement Resources can be Channel State Information Interference Measurement (CSI-IM) and / or NZP-CSI-RS. Simultaneously, the base station can instruct the terminal via CSI reporting configuration which subbands' CSI needs to be measured. The terminal only needs to measure the signals and interference in these subbands and report the corresponding CSI for those subbands. Each CSI reporting configuration corresponds to one CSI report, and each CSI report can contain different information such as CRI, RI, PMI, and CQI. Specifically, the content / information included in the CSI is determined by the report quantity information in the CSI reporting configuration.

[0060] It should be noted that SSB can also be called synchronizationsignal / physical broadcast channel block (SS / PBCH block).

[0061] Currently, the terminal reports one CSI for each CSI reporting configuration. This CSI is calculated based on the channel measurement resources and interference measurement resources configured by the network and is used to obtain the channel information for a TRP. For example, the terminal can use CSI reporting configuration 1 to obtain a separate CSI for TRP1, and CSI reporting configuration 2 to obtain a separate CSI for TRP2. In multi-TRP transmission schemes based on multiple DCIs, two TRPs are independently scheduled by the same terminal device's PDSCH. The corresponding PDSCH physical resources can be completely overlapping, partially overlapping, or non-overlapping. Under different resource overlap conditions, the corresponding CSI will also differ due to varying interference. Existing CSI reporting schemes cannot support reporting CSIs under different resource overlap conditions. The CSI obtained by the network device may not be the optimal CSI under the current scheduling condition, which will affect the performance of multi-TRP transmission.

[0062] To address the aforementioned issues, this application proposes a scheme for configuring resource overlap type information. This scheme instructs terminal devices to measure the CSI (Content Indicator) under different PDSCH resource overlap assumptions, enabling flexible PDSCH scheduling under various resource overlap scenarios and supporting simultaneous transmission of multiple TRPs based on multiple DCIs. After obtaining the CSI corresponding to different resource overlap types, network devices can use the appropriate CSI for the scheduled PDSCH based on the current scheduling results, thereby achieving higher throughput.

[0063] The technical solution of this application is described in detail below through specific embodiments.

[0064] Figure 4 This is a schematic flowchart of a wireless communication method 200 according to an embodiment of this application, such as... Figure 4 As shown, the method 200 may include at least some of the following:

[0065] S210, the network device sends a first CSI reporting configuration to the terminal device, the first CSI reporting configuration including at least resource overlap type information;

[0066] S220, the terminal device receives the first CSI reported configuration;

[0067] S230, the terminal device performs CSI measurement based on the resource overlap type information.

[0068] In this embodiment, resource overlap refers to the resource overlap of PDSCH. CSI measurement requires a transmission assumption (corresponding to the PDSCH scheduled by the network device). It can be assumed that the PDSCH overlaps or does not, resulting in different CSI measurement methods. After CSI measurement, the CSI measurement results can be reported to the network device. CSI reporting is used for PDSCH transmission.

[0069] That is, in the embodiments of this application, the resource overlap type information is used to instruct the terminal device to perform CSI measurement according to the indicated resource overlap type.

[0070] In some embodiments, the resource overlap type information is used to indicate at least one of non-overlapping, partially overlapping, and completely overlapping.

[0071] In some embodiments, the resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

[0072] In some embodiments, the resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI reporting configuration associated with the first CSI reporting configuration.

[0073] The association between the first CSI reporting configuration and the second CSI reporting configuration can be communicated to the terminal device in advance via higher-layer signaling. In other words, the association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured via higher-layer signaling.

[0074] In some embodiments, the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated by the first CSI reporting configuration. For example, the configuration identifier (ID) of the associated second CSI reporting configuration is indicated in the first CSI reporting configuration.

[0075] In some embodiments, the CSI reporting configuration associated with the first CSI reporting configuration may be one or more. Furthermore, the CSI reporting configuration associated with the first CSI reporting configuration may be indicated by information carried in the first CSI reporting configuration.

[0076] In some embodiments, when the resource overlap type information indicates different resource overlap types, the interference measurement resources or interference measurement assumptions used by the terminal device to perform CSI measurements are different.

[0077] It should be noted that the interference measurement assumptions used by the terminal device for CSI measurement may be, for example, one or more of the following: the beam, antenna panel, and precoder assumed for interference measurement.

[0078] As an example 1, the resource overlap type information is used to indicate at least one of non-overlapping, partially overlapping, and completely overlapping.

[0079] In some implementations of Embodiment 1, when the resource overlap type information indicates no overlap, the above-mentioned S230 specifically includes:

[0080] The terminal device performs CSI measurements based on the first CMR and first IMR indicated in the first CSI reporting configuration.

[0081] In other words, when the resource overlap type information indicates that there is no overlap, the terminal device can perform CSI measurement and CSI reporting according to the first CMR and first IMR indicated in the first CSI reporting configuration, without having to consider interference from other TRPs.

[0082] In some implementations of Embodiment 1, when the resource overlap type information indicates partial overlap, the above-mentioned S230 specifically includes:

[0083] The terminal device performs CSI measurements using the second CMR as an interference measurement resource in the first subband, and does not perform CSI measurements using the second CMR as an interference measurement resource in the second subband.

[0084] The first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration; the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration; the second CMR is the CMR indicated in the second CSI reporting configuration; and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

[0085] In other words, when the resource overlap type information indicates partial overlap, the interference of another TRP is considered on the overlapping subbands in the two associated CSI reporting configurations, while the interference of another TRP is not considered on the non-overlapping subbands.

[0086] For example, suppose the first CSI reporting configuration indicates that the first CMR is used as a channel measurement resource and the first IMR is used as an interference measurement resource, and the indicated reporting sub-bands are {Band0, Band1, Band6, Band7}; the second CSI reporting configuration associated with the first CSI reporting configuration indicates that the second CMR is used as a channel measurement resource and the second IMR is used as an interference measurement resource, and the indicated reporting sub-bands are {Band0, Band1, Band2, Band3}. In this case, the first sub-band is the reporting sub-band indicated in both the first and second CSI reporting configurations, namely Band0 and Band1; the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration, namely Band6 and Band7.

[0087] The terminal device uses the second CMR as an interference measurement resource for CSI measurement in the first subband (i.e., Band 0 and Band 1). This means the terminal device needs to perform interference measurements on both the second CMR and the first IMR, and calculate the CSI configured for the first CSI reporting based on the measured interference. In the second subband (Band 6 and Band 7), the terminal device does not use the second CMR as an interference measurement resource; that is, the terminal device performs CSI measurements only based on the first CMR and the first IMR in the second subband.

[0088] In some embodiments, where the resource overlap type information indicates partial overlap, the reporting subbands indicated in the first CSI reporting configuration are not exactly the same as those indicated in the second CSI reporting configuration.

[0089] In some implementations of Embodiment 1, if the reporting subbands indicated in the first CSI reporting configuration and the second CSI reporting configuration are exactly the same, the terminal device can use the second CMR indicated in the second CSI reporting configuration as an interference measurement resource for CSI measurement on all reporting subbands.

[0090] In some implementations of Embodiment 1, if the reporting subband indicated in the first CSI reporting configuration is completely different from that indicated in the second CSI reporting configuration, the terminal device may not use the second CMR indicated in the second CSI reporting configuration as an interference measurement resource for CSI measurement on any reporting subband.

[0091] In some implementations of Embodiment 1, when the resource overlap type information indicates complete overlap, the above-mentioned S230 specifically includes:

[0092] The terminal device performs CSI measurements on all subbands indicated in the first CSI reporting configuration, using the second CMR as an interference measurement resource.

[0093] The second CMR is the CMR indicated in the second CSI reporting configuration, which is a CSI reporting configuration associated with the first CSI reporting configuration.

[0094] For example, when the resource overlap type information indicates complete overlap, the terminal device performs interference measurements on all reporting subbands indicated by the first CSI reporting configuration, on the second CMR indicated in the second CSI reporting configuration and the first IMR indicated in the first CSI reporting configuration, and performs CSI calculation of the first CSI reporting configuration based on the measured interference.

[0095] In some embodiments, where the resource overlap type information indicates complete overlap, the first CSI reporting configuration is identical to the reporting subband indicated in the second CSI reporting configuration.

[0096] In some implementations of Embodiment 1, when the resource overlap type information indicates complete overlap, if the reporting subbands indicated in the first CSI reporting configuration and the second CSI reporting configuration are not completely the same, the terminal device only reports the CSI on the overlapping subbands and does not report the CSI on the non-overlapping subbands.

[0097] In Example 1, for example, as Figure 5As shown, when the resource overlap type information indicates complete overlap, channel measurements are performed on the first non-zero power CSI-RS (i.e., the CMR indicated in the first CSI reporting configuration), and interference measurements are performed on the first CSI-IM (i.e., the IMR indicated in the first CSI reporting configuration) and the second non-zero power CSI-RS (i.e., the CMR indicated in the second CSI reporting configuration). When the resource overlap type information indicates partial overlap, for overlapping subbands, channel measurements are performed on the first non-zero power CSI-RS (i.e., the CMR indicated in the first CSI reporting configuration), and interference measurements are performed on the first CSI-IM (i.e., the IMR indicated in the first CSI reporting configuration) and the second non-zero power CSI-RS (i.e., the CMR indicated in the second CSI reporting configuration); for non-overlapping subbands, channel measurements are performed on the first non-zero power CSI-RS (i.e., the CMR indicated in the first CSI reporting configuration), and interference measurements are performed on the first CSI-IM (i.e., the IMR indicated in the first CSI reporting configuration). When the resource overlap type information indicates no overlap, channel measurements are performed on the first non-zero power CSI-RS (i.e., the CMR indicated in the first CSI reporting configuration) and interference measurements are performed on the first CSI-IM (i.e., the IMR indicated in the first CSI reporting configuration).

[0098] In some implementations of Embodiment 1, when the resource overlap type information indicates multiple resource overlap types, the terminal device performs CSI measurements according to the multiple resource overlap types respectively, and the CSI measurements of the multiple resource overlap types are based on the same CMR and / or different IMRs.

[0099] For example, when the resource overlap type information indicates non-overlap and full overlap, the two resource overlap types are measured based on the same first CMR. However, when measuring interference, in the case of full overlap, interference from another TRP (CSI reporting configuration) needs to be considered.

[0100] In some implementations of Embodiment 1, the terminal device reports the CSI corresponding to the first CSI reporting configuration, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

[0101] In some implementations of Embodiment 1, when the resource overlap type information indicates multiple resource overlap types, the terminal device cascades the CSIs corresponding to the multiple resource overlap types according to the configuration order of the multiple resource overlap types and then reports them in the same CSI report.

[0102] For example, when the resource overlap type information indicates "complete overlap" and "non-overlap", the corresponding CSIs are CSI0 and CSI1, respectively. The terminal will then cascade these two CSIs in the order of {CSI0, CSI1} and report them in the same CSI.

[0103] On the network side, after obtaining the CSI corresponding to different resource overlap types, the network device can use the corresponding CSI for the scheduled PDSCH based on the current scheduling result (whether there is resource overlap in the PDSCH of different TRPs), thereby obtaining higher throughput.

[0104] In some implementations of Embodiment 1, when the resource overlap type information indicates multiple resource overlap types, the terminal device selects some CSIs corresponding to the resource overlap types from the CSIs corresponding to the multiple resource overlap types and reports the CSIs.

[0105] In some implementations, the terminal device may send first indication information to the network device, wherein the first indication information is used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information is used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

[0106] It should be noted that the first indication information can be reported together with the CSI corresponding to the first CSI reporting configuration, or it can be reported separately. This application does not limit this.

[0107] For example, assuming the resource overlap type information indicates "complete overlap", "partial overlap", and "no overlap", the terminal device selects one of the CSIs corresponding to the three resource overlap types for reporting, and uses 2 bits to indicate the selected resource overlap type. Different states in these 2 bits correspond to different resource overlap types.

[0108] Specifically, the terminal device can recommend the optimal resource overlap type based on the current channel state and report the corresponding CSI to the network device. The network device can then adopt the corresponding scheduling strategy to achieve the recommended overlap state and use the feedback CSI to achieve higher throughput.

[0109] In some implementations of Embodiment 1, when the resource overlap type information indicates multiple resource overlap types and some of the CSIs in the CSI corresponding to the configuration reported by the first CSI need to be discarded, the terminal device discards them sequentially according to the configuration order of the multiple resource overlap types, or the terminal device discards them according to the discarding order agreed upon with the network device.

[0110] For example, when the code rate of the Physical Uplink Shared Channel (PUSCH) / Physical Uplink Control Channel (PUCCH) carrying the CSI reporting configuration corresponding to the first CSI reporting configuration exceeds a certain threshold, some of the CSIs need to be discarded to ensure that the code rate after discarding does not exceed the threshold. Assuming that the resource overlap type information indicates "partial overlap" and "non-overlap" (partial overlap configuration order is first), and the corresponding CSIs are CSI0 and CSI1 respectively, then when discarding CSIs, the CSIs corresponding to the reporting information with the later configuration order (i.e., CSI1) can be discarded first, and the CSIs corresponding to the reporting information with the earlier configuration order (i.e., CSI0) can be discarded when needed, until the code rate meets the threshold.

[0111] In some implementations, the order of dropping items agreed upon with the network device includes:

[0112] First discard CSIs with partial overlap, then discard CSIs with full overlap, and finally discard CSIs with no overlap.

[0113] In another implementation, the agreed-upon discarding order with the network device includes:

[0114] First, discard CSIs corresponding to resources with full overlap. Then, discard CSIs corresponding to resources with partial overlap. Next, discard CSIs corresponding to resources with no overlap. And so on.

[0115] As an example 2, the resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

[0116] In some implementations of Embodiment 2, when the resource overlap type information indicates no overlap, the above-mentioned S230 specifically includes:

[0117] The terminal device performs CSI measurements based on the first CMR and first IMR indicated in the first CSI reporting configuration.

[0118] In other words, when the resource overlap type information indicates that there is no overlap, the terminal device can perform CSI measurement and CSI reporting according to the first CMR and first IMR indicated in the first CSI reporting configuration, without having to consider interference from other TRPs.

[0119] In some implementations of Embodiment 2, when the resource overlap type information indicates overlap, the above-mentioned S230 specifically includes:

[0120] The terminal device performs CSI measurements on all subbands indicated in the first CSI reporting configuration, using the second CMR as an interference measurement resource.

[0121] The second CMR is the CMR indicated in the second CSI reporting configuration, which is a CSI reporting configuration associated with the first CSI reporting configuration.

[0122] For example, the terminal device performs interference measurements on all reporting subbands indicated in the first CSI reporting configuration, on the second CMR indicated in the second CSI reporting configuration, and on the first IMR indicated in the first CSI reporting configuration, and performs CSI calculations for the first CSI reporting configuration based on the measured interference.

[0123] In some implementations of Embodiment 2, when the resource overlap type information indicates overlap, the above-mentioned S230 specifically includes:

[0124] The terminal device performs CSI measurements using the second CMR as an interference measurement resource in the first subband, and does not perform CSI measurements using the second CMR as an interference measurement resource in the second subband.

[0125] The first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration; the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration; the second CMR is the CMR indicated in the second CSI reporting configuration; and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

[0126] In some implementations, if the reporting subbands in the first CSI reporting configuration and the second CSI reporting configuration are not completely the same, the terminal device will use the second CMR as an interference measurement resource for CSI measurement in the first subband, and will not use the second CMR as an interference measurement resource for CSI measurement in the second subband.

[0127] The first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration; the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration; the second CMR is the CMR indicated in the second CSI reporting configuration; and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

[0128] In some implementations, if the reporting subbands in the first CSI reporting configuration and the second CSI reporting configuration are the same, the terminal device will use the second CMR indicated in the second CSI reporting configuration as the interference measurement resource for CSI measurement on all subbands. That is, at this time there is only the first subband and no second subband.

[0129] For example, suppose the first CSI reporting configuration indicates that the first CMR is used as a channel measurement resource and the first IMR is used as an interference measurement resource, with the indicated reporting subbands being {Band0, Band1, Band2, Band3}; the second CSI reporting configuration associated with the first CSI reporting configuration indicates that the second CMR is used as a channel measurement resource and the second IMR is used as an interference measurement resource, with the indicated reporting subbands being {Band2, Band3, Band4, Band5}. In this case, the first subbands are Band2 and Band3, and the second subbands are Band0 and Band1. The terminal device performs interference measurements on both the second CMR and the first IMR in the first subbands (i.e., Band2 and Band3) and calculates the CSI based on the measured interference according to the first CSI reporting configuration. The terminal device does not use the second CMR as an interference measurement resource in the second subbands (Band0 and Band1); that is, the terminal only performs CSI measurements based on the first CMR and the first IMR. If the reporting subbands in the first and second CSI reporting configurations are both {Band0, Band1, Band2, Band3}, then the terminal will use the second CMR as an interference measurement resource in all subbands.

[0130] In some implementations of Embodiment 2, when the resource overlap type information indicates multiple resource overlap types, the terminal device performs CSI measurements according to the multiple resource overlap types respectively, and the CSI measurements of the multiple resource overlap types are based on the same CMR and / or different IMRs.

[0131] In some implementations of Embodiment 2, the terminal device reports the CSI corresponding to the first CSI reporting configuration, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

[0132] In some implementations of Embodiment 2, when the resource overlap type information indicates multiple resource overlap types, the terminal device cascades the CSIs corresponding to the multiple resource overlap types according to the configuration order of the multiple resource overlap types and then reports them in the same CSI report.

[0133] For example, when the resource overlap type information indicates "overlapping" and "non-overlapping", the corresponding CSIs are CSI0 and CSI1, respectively. The terminal device will then cascade these two CSIs in the order of {CSI1, CSI0} (the later the configuration, the earlier the cascading order) and report them in the same CSI.

[0134] In some implementations of Embodiment 2, when the resource overlap type information indicates multiple resource overlap types, the terminal device selects some CSIs corresponding to the resource overlap types from the CSIs corresponding to the multiple resource overlap types and reports the CSIs.

[0135] For example, when the resource overlap type information indicates two resource overlap types, the terminal device selects one CSI corresponding to the resource overlap type from the CSIs corresponding to the two resource overlap types and reports the CSI.

[0136] In some implementations, the terminal device may send first indication information to the network device, wherein the first indication information is used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information is used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

[0137] It should be noted that the first indication information can be reported together with the CSI corresponding to the first CSI reporting configuration, or it can be reported separately. This application does not limit this.

[0138] For example, the terminal device reports an indication of the selected resource overlap type, or an indication of the CSI corresponding to the selected resource overlap type. Specifically, a 1-bit signaling can be used to indicate the selected resource overlap type or the CSI corresponding to the selected resource overlap type.

[0139] In some implementations of Embodiment 2, when the resource overlap type information indicates multiple resource overlap types and some of the CSIs in the CSI corresponding to the configuration reported by the first CSI need to be discarded, the terminal device discards them sequentially according to the configuration order of the multiple resource overlap types, or the terminal device discards them according to the discarding order agreed upon with the network device.

[0140] For example, when the bitrate of the PUSCH / PUCCH reported by the CSI corresponding to the first CSI reporting configuration exceeds a certain threshold, some of the CSIs need to be discarded to ensure that the bitrate after discarding does not exceed the threshold. Assuming that the resource overlap type information indicates "non-overlapping" and "overlapping" (non-overlapping configurations come first), and the corresponding CSIs are CSI0 and CSI1, then when discarding CSIs, the CSIs corresponding to the reporting quantity information with the earlier configuration order (i.e., CSI0) can be discarded first, and the CSIs corresponding to the reporting quantity information with the earlier configuration order (i.e., CSI1) can be discarded when needed, until the bitrate meets the threshold.

[0141] In some implementations, the order of dropping items agreed upon with the network device includes:

[0142] First discard the CSIs corresponding to resources with overlapping overlap types, then discard the CSIs corresponding to resources with non-overlapping overlap types.

[0143] Therefore, in this embodiment, the network device can instruct the terminal device to measure the CSI under different PDSCH resource overlap assumptions through resource overlap type information, thereby enabling flexible scheduling of PDSCH under different resource overlap conditions and supporting simultaneous transmission of multiple TRPs based on multiple DCIs. Furthermore, after obtaining the CSI corresponding to different resource overlap types, the network device can use the corresponding CSI for the scheduled PDSCH based on the current scheduling results, thereby achieving higher throughput.

[0144] The above text combined Figures 4 to 5 The method embodiments of this application are described in detail below, in conjunction with... Figures 6 to 10 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0145] Figure 6 A schematic block diagram of a terminal device 300 according to an embodiment of this application is shown. Figure 6 As shown, the terminal device 300 includes:

[0146] Communication unit 310 is used to receive first channel status information (CSI) reporting configuration, wherein the first CSI reporting configuration includes at least resource overlap type information;

[0147] Processing unit 320 is used to perform CSI measurement based on the resource overlap type information.

[0148] In some embodiments, the resource overlap type information is used to indicate at least one of non-overlapping, partial overlap, and complete overlap; or, the resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

[0149] In some embodiments, the resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI reporting configuration associated with the first CSI reporting configuration.

[0150] In some embodiments, the resource overlap type information indicates no overlap, and the processing unit 320 is specifically used for:

[0151] CSI measurements are performed based on the first channel measurement resource (CMR) and the first interference measurement resource (IMR) indicated in the first CSI reporting configuration.

[0152] In some embodiments, when the resource overlap type information indicates different resource overlap types, the interference measurement resources or interference measurement assumptions used by the terminal device to perform CSI measurements are different.

[0153] In some embodiments, the resource overlap type information indicates partial overlap, and the processing unit 320 is specifically used for:

[0154] The second CMR is used as an interference measurement resource for CSI measurement in the first subband, and the second CMR is not used as an interference measurement resource for CSI measurement in the second subband.

[0155] The first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration; the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration; the second CMR is the CMR indicated in the second CSI reporting configuration; and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

[0156] In some embodiments, the first CSI reporting configuration is not exactly the same as the reporting subband indicated in the second CSI reporting configuration.

[0157] In some embodiments, the resource overlap type information indicates complete overlap, and the processing unit 320 is specifically used for:

[0158] The second CMR is used as an interference measurement resource for CSI measurement on all subbands indicated in the first CSI reporting configuration;

[0159] The second CMR is the CMR indicated in the second CSI reporting configuration, which is a CSI reporting configuration associated with the first CSI reporting configuration.

[0160] In some embodiments, the first CSI reporting configuration is exactly the same as the reporting subband indicated in the second CSI reporting configuration.

[0161] In some embodiments, the resource overlap type information indicates overlap, and the processing unit 320 is specifically used for:

[0162] The second CMR is used as an interference measurement resource for CSI measurements on all subbands indicated in the first CSI reporting configuration; or...

[0163] The second CMR is used as an interference measurement resource for CSI measurement in the first subband, and the second CMR is not used as an interference measurement resource for CSI measurement in the second subband.

[0164] The first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration; the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration; the second CMR is the CMR indicated in the second CSI reporting configuration; and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

[0165] In some embodiments, the association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured via higher-layer signaling, or the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated by the first CSI reporting configuration.

[0166] In some embodiments, the processing unit 320 is specifically used for:

[0167] In cases where the resource overlap type information indicates multiple resource overlap types, CSI measurements are performed separately for each of the multiple resource overlap types, and the CSI measurements for the multiple resource overlap types are based on the same CMR and / or different IMRs.

[0168] In some embodiments, the communication unit 310 is further configured to report the CSI corresponding to the first CSI reporting configuration, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

[0169] In some embodiments, the communication unit 310 is specifically used for:

[0170] When the resource overlap type information indicates multiple resource overlap types, the CSIs corresponding to these multiple resource overlap types are cascaded according to the configuration order of these multiple resource overlap types and then reported in the same CSI report.

[0171] In some embodiments, the communication unit 310 is specifically used for:

[0172] When the resource overlap type information indicates multiple resource overlap types, select some CSIs corresponding to the resource overlap types from the CSIs corresponding to these multiple resource overlap types and report them to the CSI.

[0173] In some embodiments, the communication unit 310 is further configured to send first indication information, which is used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information is used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

[0174] In some embodiments, when the resource overlap type information indicates multiple resource overlap types and some of the CSIs in the CSI corresponding to the first CSI reporting configuration need to be discarded, the processing unit 320 is further configured to discard them sequentially according to the configuration order of the multiple resource overlap types, or the processing unit 320 is further configured to discard them according to the discarding order agreed upon with the network device.

[0175] In some embodiments, the order of dropping items agreed upon with the network device includes:

[0176] First discard CSIs corresponding to resources with overlapping overlap types, then discard CSIs corresponding to resources with non-overlapping overlap types; or,

[0177] First discard CSIs with partial overlap, then discard CSIs with full overlap, and finally discard CSIs with no overlap.

[0178] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0179] It should be understood that the terminal device 300 according to the embodiments of this application may correspond to the terminal device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the terminal device 300 are respectively for implementing Figure 4 The corresponding process of the terminal device in method 200 shown will not be described in detail here for the sake of brevity.

[0180] Figure 7 A schematic block diagram of a network device 400 according to an embodiment of this application is shown. Figure 7 As shown, the network device 400 includes:

[0181] The communication unit 410 is used to send a first channel status information (CSI) reporting configuration to the terminal device. The first CSI reporting configuration includes at least resource overlap type information, which is used to instruct the terminal device to perform CSI measurement according to the indicated resource overlap type.

[0182] In some embodiments, the resource overlap type information is used to indicate at least one of non-overlapping, partial overlap, and complete overlap; or,

[0183] This resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

[0184] In some embodiments, the resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI configuration associated with the first CSI reporting configuration.

[0185] In some embodiments, the association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured to the terminal device by the network device through higher-layer signaling, or the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated to the terminal device by the network device through the first CSI reporting configuration.

[0186] In some embodiments, the communication unit 410 is further configured to receive the CSI corresponding to the first CSI reporting configuration reported by the terminal device, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

[0187] In some embodiments, when the resource overlap type information indicates multiple resource overlap types, the CSI corresponding to the first CSI reporting configuration is the CSI corresponding to the multiple resource overlap types that are cascaded in the same CSI reporting after being arranged in the configuration order of the multiple resource overlap types.

[0188] In some embodiments, when the resource overlap type information indicates multiple resource overlap types, the CSI corresponding to the first CSI reporting configuration includes a subset of the CSIs corresponding to the multiple resource overlap types selected from the CSIs corresponding to the multiple resource overlap types.

[0189] In some embodiments, the communication unit 410 is further configured to receive first indication information sent by the terminal device, the first indication information being used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information being used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

[0190] In some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0191] It should be understood that the network device 400 according to the embodiments of this application may correspond to the network device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 400 are respectively for implementing Figure 4 The corresponding procedures for network devices in method 200 are not described in detail here for the sake of brevity.

[0192] Figure 8 This is a schematic structural diagram of a communication device 500 provided in an embodiment of this application. Figure 8 The communication device 500 shown includes a processor 510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0193] In some embodiments, such as Figure 8 As shown, the communication device 500 may further include a memory 520. The processor 510 can retrieve and run computer programs from the memory 520 to implement the methods described in this embodiment.

[0194] The memory 520 can be a separate device independent of the processor 510, or it can be integrated into the processor 510.

[0195] In some embodiments, such as Figure 8 As shown, the communication device 500 may also include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0196] The transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, and the number of antennas may be one or more.

[0197] In some embodiments, the communication device 500 may specifically be a network device in the embodiments of this application, and the communication device 500 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0198] In some embodiments, the communication device 500 may specifically be a terminal device in the embodiments of this application, and the communication device 500 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0199] Figure 9 This is a schematic structural diagram of the device according to an embodiment of this application. Figure 9 The illustrated device 600 includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0200] In some embodiments, such as Figure 9 As shown, the device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in the embodiments of this application.

[0201] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0202] In some embodiments, the device 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0203] In some embodiments, the device 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips.

[0204] In some embodiments, the device can be applied to the network device in the embodiments of this application, and the device can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0205] In some embodiments, the device can be applied to the terminal device in the embodiments of this application, and the device can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0206] In some embodiments, the apparatus mentioned in the present application may also be a chip. For example, it may be a system-on-a-chip, a system-on-a-chip, a chip system, or a system-on-a-chip, etc.

[0207] Figure 10 This is a schematic block diagram of a communication system 700 provided in an embodiment of this application. Figure 10 As shown, the communication system 700 includes a terminal device 710 and a network device 720.

[0208] The terminal device 710 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 720 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, these will not be elaborated here.

[0209] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0210] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. 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 DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0211] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0212] This application also provides a computer-readable storage medium for storing computer programs.

[0213] In some embodiments, the computer-readable storage medium may be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, these will not be described in detail here.

[0214] In some embodiments, the computer-readable storage medium can be applied to the terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0215] This application also provides a computer program product, including computer program instructions.

[0216] In some embodiments, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0217] In some embodiments, the computer program product can be applied to the terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0218] This application also provides a computer program.

[0219] In some embodiments, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0220] In some embodiments, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0221] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0222] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0223] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0224] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0225] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0226] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0227] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of wireless communication, comprising: include: The terminal device receives a first channel status information (CSI) reporting configuration, wherein the first CSI reporting configuration includes at least resource overlap type information, and the resource overlap type information is used to indicate the resource overlap type; The terminal device performs CSI measurements based on the resource overlap type indicated by the resource overlap type information; wherein, when the resource overlap type information indicates different resource overlap types, the interference measurement resources or interference measurement assumptions used by the terminal device to perform CSI measurements are different.

2. The method as described in claim 1, characterized in that, The resource overlap type information is used to indicate at least one of non-overlapping, partial overlap, and complete overlap; or... The resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

3. The method of claim 1, wherein, The resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI reporting configuration associated with the first CSI reporting configuration.

4. The method as described in claim 1, characterized in that, The resource overlap type information indicates no overlap, and the terminal device performs CSI measurement based on the resource overlap type information, including: The terminal device performs CSI measurements based on the first channel measurement resource (CMR) and the first interference measurement resource (IMR) indicated in the first CSI reporting configuration.

5. The method as described in claim 1, characterized in that, The resource overlap type information indicates partial overlap, and the terminal device performs CSI measurement based on the resource overlap type information, including: The terminal device performs CSI measurement using the second CMR as an interference measurement resource on the first subband, and does not perform CSI measurement using the second CMR as an interference measurement resource on the second subband. Wherein, the first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration, the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration, the second CMR is the CMR indicated in the second CSI reporting configuration, and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

6. The method as described in claim 5, characterized in that, The reporting subbands indicated in the first CSI reporting configuration are not exactly the same as those in the second CSI reporting configuration.

7. The method as described in claim 1, characterized in that, The resource overlap type information indicates complete overlap, and the terminal device performs CSI measurement based on the resource overlap type information, including: The terminal device performs CSI measurements on all subbands indicated in the first CSI reporting configuration, using the second CMR as an interference measurement resource. Wherein, the second CMR is the CMR indicated in the second CSI reporting configuration, and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

8. The method as described in claim 7, characterized in that, The first CSI reporting configuration is exactly the same as the reporting subband indicated in the second CSI reporting configuration.

9. The method as described in claim 1, characterized in that, The resource overlap type information indicates overlap, and the terminal device performs CSI measurement based on the resource overlap type information, including: The terminal device performs CSI measurements using the second CMR as an interference measurement resource on all sub-bands indicated in the first CSI reporting configuration; or... The terminal device performs CSI measurement using the second CMR as an interference measurement resource on the first subband, and does not perform CSI measurement using the second CMR as an interference measurement resource on the second subband. Wherein, the first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration, the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration, the second CMR is the CMR indicated in the second CSI reporting configuration, and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

10. The method according to any one of claims 3, 5 to 9, characterized in that, The association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured through higher-layer signaling, or the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated by the first CSI reporting configuration.

11. The method as described in claim 1, characterized in that, The terminal device performs CSI measurement based on the resource overlap type information, including: When the resource overlap type information indicates multiple resource overlap types, the terminal device performs CSI measurements according to the multiple resource overlap types respectively, and the CSI measurements of the multiple resource overlap types are based on the same CMR and / or different IMRs.

12. The method as described in claim 1, characterized in that, The method further includes: The terminal device reports the CSI corresponding to the first CSI reporting configuration, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

13. The method as described in claim 12, characterized in that, The terminal device reports the CSI corresponding to the first CSI reporting configuration, including: When the resource overlap type information indicates multiple resource overlap types, the terminal device cascades the CSIs corresponding to the multiple resource overlap types according to the configuration order of the multiple resource overlap types and then reports them in the same CSI report.

14. The method as described in claim 12, characterized in that, The terminal device reports the CSI corresponding to the first CSI reporting configuration, including: When the resource overlap type information indicates multiple resource overlap types, the terminal device selects some CSIs corresponding to the multiple resource overlap types from the CSIs corresponding to the resource overlap types and reports the CSIs.

15. The method as described in claim 14, characterized in that, The method further includes: The terminal device sends a first indication information, which is used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information is used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

16. The method according to any one of claims 12 to 15, characterized in that, The method further includes: When the resource overlap type information indicates multiple resource overlap types, and some of the CSIs in the CSI corresponding to the first CSI report configuration need to be discarded, the terminal device discards them sequentially according to the configuration order of the multiple resource overlap types, or the terminal device discards them according to the discarding order agreed upon with the network device.

17. The method as described in claim 16, characterized in that, The agreed-upon discarding order with the network devices includes: First discard CSIs corresponding to resources with overlapping overlap types, then discard CSIs corresponding to resources with non-overlapping overlap types; or, First discard CSIs with partial overlap, then discard CSIs with full overlap, and finally discard CSIs with no overlap.

18. A method for wireless communication, characterized in that, include: The network device sends a first channel state information (CSI) reporting configuration to the terminal device. The first CSI reporting configuration includes at least resource overlap type information. The resource overlap type information is used to indicate the resource overlap type and to instruct the terminal device to perform CSI measurements according to the indicated resource overlap type. Wherein, when the resource overlap type information indicates different resource overlap types, the interference measurement resources or interference measurement assumptions used by the terminal device to perform CSI measurements are different.

19. The method as described in claim 18, characterized in that, The resource overlap type information is used to indicate at least one of non-overlapping, partial overlap, and complete overlap; or... The resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

20. The method as described in claim 18, characterized in that, The resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI configuration associated with the first CSI reporting configuration.

21. The method as described in claim 20, characterized in that, The association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured by the network device to the terminal device through higher-layer signaling, or the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated by the network device to the terminal device through the first CSI reporting configuration.

22. The method according to any one of claims 18 to 21, characterized in that, The method further includes: The network device receives the CSI corresponding to the first CSI reporting configuration reported by the terminal device, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

23. The method as described in claim 22, characterized in that, When the resource overlap type information indicates multiple resource overlap types, the CSI corresponding to the first CSI reporting configuration is a cascaded CSI corresponding to the multiple resource overlap types in the same CSI reporting.

24. The method as described in claim 22, characterized in that, When the resource overlap type information indicates multiple resource overlap types, the first CSI reporting configuration corresponding to the CSI includes a portion of the CSIs corresponding to the resource overlap types selected from the CSIs corresponding to the multiple resource overlap types.

25. The method as described in claim 24, characterized in that, The method further includes: The network device receives first indication information sent by the terminal device. The first indication information is used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information is used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

26. A terminal device, characterized in that, include: A communication unit is configured to receive a first channel status information (CSI) reporting configuration, wherein the first CSI reporting configuration includes at least resource overlap type information, and the resource overlap type information is used to indicate the resource overlap type. The processing unit is configured to perform CSI measurements based on the resource overlap type indicated by the resource overlap type information; wherein, when the resource overlap type information indicates different resource overlap types, the interference measurement resources or interference measurement assumptions used by the terminal device to perform CSI measurements are different.

27. The terminal device as described in claim 26, characterized in that, The resource overlap type information is used to indicate at least one of non-overlapping, partial overlap, and complete overlap; or... The resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

28. The terminal device as described in claim 26, characterized in that, The resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI reporting configuration associated with the first CSI reporting configuration.

29. The terminal device as described in claim 26, characterized in that, The resource overlap type information indicates no overlap, and the processing unit is specifically used for: CSI measurements are performed based on the first channel measurement resource (CMR) and the first interference measurement resource (IMR) indicated in the first CSI reporting configuration.

30. The terminal device as described in claim 26, characterized in that, The resource overlap type information indicates partial overlap, and the processing unit is specifically used for: The second CMR is used as an interference measurement resource for CSI measurement in the first subband, and the second CMR is not used as an interference measurement resource for CSI measurement in the second subband. Wherein, the first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration, the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration, the second CMR is the CMR indicated in the second CSI reporting configuration, and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

31. The terminal device as described in claim 30, characterized in that, The reporting subbands indicated in the first CSI reporting configuration are not exactly the same as those in the second CSI reporting configuration.

32. The terminal device as described in claim 26, characterized in that, The resource overlap type information indicates complete overlap, and the processing unit is specifically used for: The second CMR is used as an interference measurement resource for CSI measurement on all subbands indicated in the first CSI reporting configuration; Wherein, the second CMR is the CMR indicated in the second CSI reporting configuration, and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

33. The terminal device as described in claim 32, characterized in that, The first CSI reporting configuration is exactly the same as the reporting subband indicated in the second CSI reporting configuration.

34. The terminal device as described in claim 26, characterized in that, The resource overlap type information indicates overlap, and the processing unit is specifically used for: The second CMR is used as an interference measurement resource for CSI measurement on all subbands indicated in the first CSI reporting configuration; or... The second CMR is used as an interference measurement resource for CSI measurement in the first subband, and the second CMR is not used as an interference measurement resource for CSI measurement in the second subband. Wherein, the first sub-band is the reporting sub-band indicated in both the first CSI reporting configuration and the second CSI reporting configuration, the second sub-band is the reporting sub-band indicated in the first CSI reporting configuration but not in the second CSI reporting configuration, the second CMR is the CMR indicated in the second CSI reporting configuration, and the second CSI reporting configuration is the CSI reporting configuration associated with the first CSI reporting configuration.

35. The terminal device as described in any one of claims 28, 30 to 34, characterized in that, The association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured through higher-layer signaling, or the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated by the first CSI reporting configuration.

36. The terminal device as described in claim 26, characterized in that, The processing unit is specifically used for: In cases where the resource overlap type information indicates multiple resource overlap types, CSI measurements are performed separately for each of the multiple resource overlap types, and the CSI measurements for the multiple resource overlap types are based on the same CMR and / or different IMRs.

37. The terminal device as described in claim 26, characterized in that, The communication unit is also used to report the CSI corresponding to the first CSI reporting configuration, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

38. The terminal device as described in claim 37, characterized in that, The communication unit is specifically used for: When the resource overlap type information indicates multiple resource overlap types, the CSIs corresponding to the multiple resource overlap types are cascaded according to the configuration order of the multiple resource overlap types and then fed back in the same CSI report.

39. The terminal device as described in claim 37, characterized in that, The communication unit is specifically used for: When the resource overlap type information indicates multiple resource overlap types, select some CSIs corresponding to the multiple resource overlap types from the CSIs corresponding to the resource overlap types and report them for CSI.

40. The terminal device as described in claim 39, characterized in that, The communication unit is further configured to send first indication information, which indicates the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information indicates the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

41. The terminal device as described in any one of claims 37 to 40, characterized in that, When the resource overlap type information indicates multiple resource overlap types, and some of the CSIs in the CSI corresponding to the first CSI report configuration need to be discarded, the processing unit is further configured to discard them sequentially according to the configuration order of the multiple resource overlap types, or the processing unit is further configured to discard them according to the discarding order agreed upon with the network device.

42. The terminal device as described in claim 41, characterized in that, The agreed-upon discarding order with the network devices includes: First discard CSIs corresponding to resources with overlapping overlap types, then discard CSIs corresponding to resources with non-overlapping overlap types; or, First discard CSIs with partial overlap, then discard CSIs with full overlap, and finally discard CSIs with no overlap.

43. A network device, characterized in that, include: A communication unit is configured to send a first channel state information (CSI) reporting configuration to a terminal device. The first CSI reporting configuration includes at least resource overlap type information, which is used to indicate the resource overlap type. The resource overlap type information is used to instruct the terminal device to perform CSI measurements according to the indicated resource overlap type. Wherein, when the resource overlap type information indicates different resource overlap types, the interference measurement resources or interference measurement assumptions used by the terminal device to perform CSI measurements are different.

44. The network device as described in claim 43, characterized in that, The resource overlap type information is used to indicate at least one of non-overlapping, partial overlap, and complete overlap; or... The resource overlap type information is used to indicate at least one of non-overlapping and overlapping.

45. The network device as described in claim 43, characterized in that, The resource overlap type information in the first CSI reporting configuration is the same as the resource overlap type information in the second CSI reporting configuration; wherein, the second CSI reporting configuration is a CSI configuration associated with the first CSI reporting configuration.

46. ​​The network device as described in claim 45, characterized in that, The association between the first CSI reporting configuration and the second CSI reporting configuration is pre-configured by the network device to the terminal device through higher-layer signaling, or the association between the first CSI reporting configuration and the second CSI reporting configuration is indicated by the network device to the terminal device through the first CSI reporting configuration.

47. The network device as described in any one of claims 43 to 46, characterized in that, The communication unit is further configured to receive the CSI corresponding to the first CSI reporting configuration reported by the terminal device, wherein the CSI corresponding to the first CSI reporting configuration includes at least one CSI corresponding to a resource overlap type.

48. The network device as described in claim 47, characterized in that, When the resource overlap type information indicates multiple resource overlap types, the CSI corresponding to the first CSI reporting configuration is a cascaded CSI corresponding to the multiple resource overlap types in the same CSI reporting.

49. The network device as described in claim 47, characterized in that, When the resource overlap type information indicates multiple resource overlap types, the first CSI reporting configuration corresponding to the CSI includes a portion of the CSIs corresponding to the resource overlap types selected from the CSIs corresponding to the multiple resource overlap types.

50. The network device as described in claim 49, characterized in that, The communication unit is further configured to receive first indication information sent by the terminal device, the first indication information being used to indicate the resource overlap type selected by the terminal device among the plurality of resource overlap types, or the first indication information being used to indicate the identifier of the CSI corresponding to the resource overlap type selected by the terminal device among the plurality of resource overlap types.

51. A terminal device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 17.

52. A network device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 18 to 25.

53. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 17.

54. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 18 to 25.

55. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as described in any one of claims 1 to 17.

56. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as described in any one of claims 18 to 25.

57. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as described in any one of claims 1 to 17.

58. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as described in any one of claims 18 to 25.

Images