WO2024131889A1 - Communication method and apparatus, and chip and module device - Google Patents

Abstract

Disclosed in the present application are a communication method and apparatus, and a chip and a module device. The method comprises: executing a first rollback solution corresponding to a first communication solution, wherein the first communication solution and the first rollback solution are both solutions for executing a target operation, the first communication solution is different from the first rollback solution, and the first rollback solution is determined on the basis of network configuration information and/or protocol pre-definition and/or protocol specification information. On the basis of the method described in the present application, when a first communication solution is disabled or cannot be used, a terminal device can successfully roll back from the first communication solution to another communication solution, thereby avoiding erroneous reporting of the terminal device.

Description

A communication method, device, chip and module equipment

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on December 23, 2022, with application number 202211662464X, and priority to the Chinese patent application with the invention name “A communication method, device, chip and module equipment”, all contents of which are incorporated by reference in this application.

Technical Field

The present invention relates to the field of communications, and in particular to a communication method, device, chip and module equipment.

Background technique

With the development of communication technology, more and more communication technologies have emerged. At present, when a terminal device cannot continue to use a certain communication technology for some reason, the terminal device may report an error. For example, in the traditional channel state information (CSI) measurement and/or CSI acquisition and/or CSI reporting scheme, CSI measurement and/or CSI acquisition and/or CSI report reporting are based on codebook technology. However, CSI measurement and/or CSI acquisition and/or CSI report reporting based on codebook technology will result in a large reporting overhead for CSI reports. To this end, the industry proposes to perform CSI measurement and/or CSI acquisition and/or CSI report reporting based on artificial intelligence (AI) technology to reduce the reporting overhead of CSI reports. However, the AI model deployed on the terminal device is subject to the limited training, inference and storage capabilities of the terminal device. When the performance of the AI model deteriorates or the processing capability of the terminal device is insufficient, the functions of CSI measurement and/or CSI acquisition and/or CSI report reporting based on AI technology may be turned off, so that the terminal device cannot continue to perform CSI measurement and/or CSI acquisition and/or CSI report reporting, resulting in an error in the terminal device.

Summary of the invention

The present application provides a communication method, apparatus, chip and module device. When a first communication scheme cannot be used, a terminal device can successfully fall back from the first communication scheme to another communication scheme to avoid an error in the terminal device.

In a first aspect, the present application provides a communication method, the method comprising: executing a first fallback scheme corresponding to a first communication scheme, the first communication scheme and the first fallback scheme are both schemes for performing a target operation, the first communication scheme and the first fallback scheme are different, and the first fallback scheme is determined based on network configuration information and/or protocol predefinition and/or protocol specification information.

Based on the method described in the first aspect, when the first communication scheme is disabled or cannot be used, the terminal device can successfully fall back from the first communication scheme to another communication scheme, thereby avoiding an error report from the terminal device.

In a possible implementation, the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report reporting.

In a possible implementation, the network configuration information is first CSI report configuration information, and the first CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme.

Based on this possible implementation, the network device can flexibly configure a fallback solution corresponding to the first communication solution.

In one possible implementation, the configuration information of the first fallback scheme is used to configure any one of the following codebooks: an R15 type 1 codebook, an R15 type 2 codebook, an R16 type 2 codebook, an R16 type 2 port selection codebook, an R18 type 2 codebook, or an R17 type 2 port selection codebook.

In a possible implementation, the measurement resource configuration information and/or CSI-related configuration information in the second CSI report configuration information is also used for the first fallback scheme, and the second CSI report configuration information includes configuration information of the first communication scheme.

Based on this possible implementation method, there is no need to indicate the measurement resource configuration information and/or CSI-related configuration information of the first fallback solution to the terminal device through additional signaling, which is conducive to saving transmission overhead.

In a possible implementation, the codebook of the first fallback solution is an R16 type 2 codebook. Based on this possible implementation, it is not necessary to indicate the codebook configuration information of the first fallback solution to the terminal device through additional signaling, which is conducive to saving transmission overhead.

In a possible implementation, in a first fallback scheme, the CSI is calculated based on a CSI-RS that is the most recent and no later than a CSI reference resource.

In a possible implementation, the second CSI report configuration information also includes CSI report time information; in the first fallback scheme, the CSI report time information in the second CSI report configuration information is ignored.

In a possible implementation, in a first fallback scheme, the CSI is calculated based only on the measurement resources, and the CSI report only includes all or part of the measurement results corresponding to the measurement resources.

In one possible implementation, the configuration information of the first fallback scheme is the configuration information associated with the second CSI report, the second CSI report is the CSI report that is closest to the first CSI report and is obtained based on a scheme other than the first communication scheme, and the first CSI report is a CSI report obtained based on the first communication scheme.

Based on this possible implementation, there is no need to indicate the configuration information of the first fallback solution to the terminal device via additional signaling, which is helpful to save transmission overhead.

In one possible implementation, the measurement resources associated with the second CSI report are the same as the measurement resources associated with the first CSI report; and/or the number of ports of the measurement resources associated with the second CSI report is the same as the number of ports of the measurement resources associated with the first CSI report.

In a possible implementation, multiple candidate fallback solutions are defined in the protocol predefined/specification information, and the first fallback solution is a fallback solution selected from the multiple candidate fallback solutions based on an event and/or an implementation of a terminal device.

Based on this possible implementation, there is no need to indicate the configuration information of the first fallback solution to the terminal device via additional signaling, which is helpful to save transmission overhead.

In one possible implementation, multiple candidate fallback schemes include one of the following codebooks with different parameter configurations: R15 type 1 codebook, R16 type 2 codebook, R17 type 2 codebook, and R18 type 2 codebook. Different parameters reflect different codebook accuracies at a certain level. Therefore, by making the codebook parameters of different candidate fallback schemes different, the codebook accuracies in different candidate fallback schemes can be made different, so as to meet the codebook selection requirements in different scenarios.

In one possible implementation, if the non-zero power channel state information reference signal NZP CSI-RS is configured as a channel state information interference measurement CSI-IM, the first fallback scheme is a fallback scheme in which the codebook is an R16 type 2 codebook among multiple candidate fallback schemes; and/or,

If the frequency division duplex FDD is less than 3 GHz, the first fallback scheme is a fallback scheme in which the codebook is an R17 type 2 codebook among multiple candidate fallback schemes; and/or,

If the speed is greater than the first threshold, or the computing resources are limited, the first fallback scheme is a fallback scheme in which the codebook is a type 1 codebook among the multiple candidate fallback schemes.

Based on this possible implementation, the selected codebook can be more compatible with the corresponding scenario. For example, NZP CSI-RS is configured as CSI-IM, which is usually used to simulate multi-user interference. CSI-IM indicates that the target scenario of this CSI report is a multi-user scenario. The typical application scenario of R16 type 2 codebook is for multi-user scenarios. For another example, the applicable scenario of R17 type 2 codebook is frequency division duplex FDD less than 3GHz. For another example, in high-speed scenarios, there are usually single users, and type 1 codebook can meet the needs.

In a possible implementation, multiple candidate fallback schemes are defined in the protocol predefined/specification information, and the CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme.

Based on this possible implementation, when multiple candidate fallback solutions are defined in the protocol predefined/standard information, the network device can flexibly indicate a fallback solution as the first fallback solution.

In a second aspect, the present application provides a communication method, the method comprising: executing a first fallback scheme corresponding to a first communication scheme, the first communication scheme being a scheme for performing a target operation, the target operation comprising channel state information CSI measurement and/or CSI acquisition and/or CSI report submission, the first fallback scheme being to ignore the CSI measurement results before this CSI report or report.

Based on the method described in the second aspect, when the first communication scheme is disabled or cannot be used, the terminal device can avoid reporting an error.

In a third aspect, the present application provides a communication device, which includes a unit for executing the method described in the first aspect or the second aspect.

In a fourth aspect, the present application provides a chip, comprising a processor and a communication interface, wherein the processor is configured to enable the chip to execute the method described in the first aspect or the second aspect above.

In the fifth aspect, the present application provides a module device, which includes a communication module, a power module, a storage module and a chip, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used for internal communication of the module device, or for the module device to communicate with external devices; the chip is used to execute the method described in the first aspect or the second aspect above.

In a sixth aspect, an embodiment of the present invention discloses a terminal device, which includes a memory and a processor, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method described in the first aspect or the second aspect above.

In a seventh aspect, the present application provides a computer-readable storage medium, which stores computer-readable instructions. When the computer-readable instructions are executed on a communication device, the communication device executes the method described in the first or second aspect above.

In an eighth aspect, the present application provides a computer program or a computer program product, comprising codes or instructions, which, when executed on a computer, enable the computer to execute the method described in the first or second aspect above.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of a system architecture provided in an embodiment of the present application;

FIG2 is a flow chart of a communication method provided in an embodiment of the present application;

FIG3 is a schematic diagram of a communication method provided in an embodiment of the present application;

FIG4 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

FIG5 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of the structure of a module device provided in an embodiment of the present application.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations on the present application. As used in the specification and appended claims of the present application, the singular expressions "a", "a", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context.

In the embodiments of the present application, "and/or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and/or B can represent the following three situations: A exists alone; A and B exist at the same time; B exists alone. Among them, A and B can be singular or plural.

In the embodiment of the present application, the symbol "/" can indicate that the objects associated with each other are in an "or" relationship. In addition, the symbol "/" can also indicate a division sign, that is, performing a division operation. For example, A/B can indicate A divided by B.

In the embodiments of the present application, "at least one item" or similar expressions refer to any combination of these items, including any combination of single items or plural items, and refer to one or more, and multiple refers to two or more. For example, at least one item of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c. Among them, each of a, b, and c can be an element or a set containing one or more elements.

In the embodiments of the present application, "equal to" can be used in conjunction with greater than, and is applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, and is applicable to the technical solution adopted when less than. When equal to is used in conjunction with greater than, it is not used in conjunction with less than; when equal to is used in conjunction with less than, it is not used in conjunction with greater than.

It should be noted that the terms "first", "second", "third", etc. in the specification and claims of the present application and in the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

To facilitate understanding of the embodiments of the present application, the system architecture involved in the present application is described below.

The present application can be applied to a fifth generation (5G) system, which can also be called a new radio (NR) system; or can be applied to a sixth generation (6G) system, or a seventh generation (7G) system, or other future communication systems; or can also be used in a device to device (D2D) system, a machine to machine (M2M) system, a vehicle to everything (V2X), and the like.

The present application may be applied to the system architecture shown in FIG1. The communication system 10 shown in FIG1 may include, but is not limited to, a network device 110 and a terminal device 120. The number and form of the devices in FIG1 are for example only and do not constitute a limitation on the embodiments of the present application. For example, multiple terminal devices may be included in an actual application.

1. Terminal equipment

Terminal equipment can be a device with transceiver functions, and can also be called terminal, user equipment (UE), remote terminal equipment (remote UE), relay equipment (relay UE), access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent or user device. It should be noted that relay equipment is a terminal equipment that can provide relay forwarding services for other terminal equipment (including remote terminal equipment).

For example, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, 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.

For another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR communication system, a 6G communication system), or a terminal device in a future evolved public land mobile communication network (PLMN), etc., without specific limitation.

In some possible implementations, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); can be deployed in the air (such as airplanes, balloons and satellites, etc.).

In some possible implementations, the terminal device may include a device with wireless communication functions, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip and may also include other discrete devices.

In some possible implementations, the terminal device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

2. Network equipment

A network device may be a device with transceiver functions and may be used to communicate with a terminal device.

In some possible implementations, the network equipment may be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side.

In some possible implementations, the network device may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions, that is, the network device may include a device in the RAN.

For example, the devices in the RAN may include an evolved node B (evolutional node B, eNB or eNodeB) in an LTE communication system, a next generation evolved node B (next generation evolved node B, ng-eNB) in an NR communication system, a next generation node B (next generation node B, gNB) in an NR communication system, and a dual connectivity architecture. The master node (MN) in the dual connection architecture, the second node or secondary node (SN) in the dual connection architecture, etc., are not specifically limited to this.

In some possible implementations, the network device may include a device in a core network (CN).

For example, the devices in CN may include access and mobility management function (AMF), user plane function (UPF), session management function (SMF), etc.

In some possible implementations, the network device may also be an access point (AP) in a WLAN, a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.

In some possible implementations, the network device may include a device that provides wireless communication functions for the terminal device, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip, or may include other discrete devices.

In some possible implementations, the network device can communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.

In some possible implementations, the network device may include an independent node to implement the functions of the above-mentioned base station, or may include two or more independent nodes to implement the functions of the above-mentioned base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU. Further, in some other embodiments of the present application, the network device may also include an active antenna unit (AAU). Among them, the CU implements part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation (SDAP) layer, and the packet data convergence (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU can implement some physical layer processing functions, RF processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this network deployment, high-level signaling (such as RRC signaling) can be considered to be generated by the CU, sent by the DU, or sent jointly by the DU and the AAU. It can be understood that the network device may include at least one of the CU, DU, and AAU. In addition, the CU can be divided into a RAN device, or the CU can be divided into a core network device, without specific limitation.

In some possible implementations, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and no specific restrictions are made to this. Among them, multi-site coherent cooperative transmission may be joint coherent transmission of multiple sites, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent cooperative transmission may be remote radio heads (RRH), transmission and reception points (TRP), network devices, etc., and no specific restrictions are made to this.

In some possible implementations, the network device may be any site in the multi-sites that perform incoherent cooperative transmission with the terminal device, or other sites outside the multi-sites, or other network devices that perform network communication with the terminal device. There is no specific limitation on this. Among them, multi-site incoherent collaborative transmission can be a joint incoherent transmission of multiple sites, or different data belonging to the same PDSCH is sent from different sites to the terminal device, or different data belonging to the same PDSCH is sent from different sites to the terminal device. The names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in multi-site incoherent collaborative transmission can be RRH, TRP, network equipment, etc., and there is no specific limitation on this.

In some possible implementations, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, 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. Optionally, the network device may also be a base station set up in a location such as land or water.

In some possible implementations, a network device may provide services for a cell, and a terminal device in the cell may communicate with the network device through transmission resources (such as spectrum resources). The cell may be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

In some possible implementations, the network device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

To facilitate understanding of the embodiments of the present application, the relevant names or terms involved in the present application are explained below.

1. CSI

In the present application, CSI may be used to describe information related to channel quality. For example, CSI describes the propagation process of a wireless signal between a transmitter and a receiver, including the effects of distance, scattering, fading, etc. on the signal. For downlink transmission, CSI may be used by a terminal device to feedback the downlink channel quality to a network device so that the network device performs resource scheduling, beam management, mobility management, and other processing based on the CSI. The CSI sent by the terminal device to the network device may be carried in a CSI report. For example, CSI may also include at least one of the following: CSI Reference Signal Resource Indicator Index (CSI-RS Resource Indicator, CRI), Rank Indicator Index (Rank Indicator, RI), Channel Quality Indicator Index (Channel quality indicator, CQI), Precoding Matrix Indicator Index (Precoding Matrix Indicator, PMI), Layer Indicator Index (Layer Indicator, LI), L1-RSRP, L1-SINR.

In the present application, the terminal device obtains channel information by performing channel measurement on the downlink reference signal. Measurement can also be described as evaluation, detection or estimation, etc. Among them, the downlink reference signal may include but is not limited to CSI-RS, synchronization signal and physical broadcast channel block (Synchronization Signal Block, SSB) or physical broadcast channel demodulation reference signal (PBCH DMRS), etc. For example, the terminal device can perform downlink channel measurement based on CSI-RS to obtain channel matrix information, and thus can obtain CSI based on the channel matrix information.

2. CSI Report

In the present application, CSI report (CSI-Report) is used to report CSI. For example, CSI report may include at least one of L1-RSRP, L1-SINR, CSI-related information, etc. Among them, CSI-related information may include at least one of the following information: CRI, synchronization signal block resource indicator index (SS/PBCH block resource indicator, SSBRI), RI, PMI, CQI, LI, etc. CSI report can be transmitted through physical uplink control channel (physical uplink control channel, PUCCH) or physical uplink shared channel (physical uplink shared channel, PUSCH).

3. CSI report configuration information (CSI-ReportConfig)

The CSI report configuration information is a high-level parameter used to configure the CSI report.

IV. CSI Reference Resources

In the frequency domain, the CSI reference resource is defined as a group of downlink physical resource blocks, and the obtained CSI is related to the corresponding bandwidth of the group of downlink physical resource blocks.

In the time domain, the uplink time slot n' (ie, the index number of the uplink time slot is represented as n') reports the CSI report, and the time domain position of the CSI reference resource corresponding to the CSI report is a single downlink time slot. The index number of the single downlink time slot can be represented as Among them, μ _Koffset is the subcarrier spacing corresponding to K _offset ; μ _DL is the subcarrier spacing of the downlink.

K _offset may be configured by a higher layer parameter, and its unit may be milliseconds (ms). For example, K _offset may be configured by CellSpecific_Koffset, or the value of K _offset may be equal to CellSpecific_Koffset-UESpecific_Koffset, if the media access control-control element (MAC-CE) provides UESpecific_Koffset.

Time slot n (i.e., the index number of the time slot is represented as n) is related to the uplink time slot n'. For example, time slot n is the downlink time slot corresponding to the uplink time slot n'. The relationship between the two can be expressed as:

in, represents rounding down; μ _UL is the uplink subcarrier spacing; and μ _offset can be determined based on the high-level parameter ca-SlotOffset.

For periodic CSI reporting and semi-persistent CSI reporting, if a single CSI-RS/SSB resource is configured for channel measurement, n _{CSI_ref} is greater than or equal to The minimum value of n CSI_ref and is a valid downlink time slot; or, if multiple CSI-RS/SSB resources are configured for channel measurement, n _{CSI_ref} is greater than or equal to The minimum value of is a valid downlink time slot. Wherein, μ _DL is the subcarrier spacing of the downlink.

For non-periodic CSI reporting, if the downlink control information (DCI) indicates that the time slot in which the terminal device reports the CSI report is the same as the time slot occupied by the CSI request, then n _{CSI_ref} makes the time slot occupied by the reference resource the same as the valid downlink time slot occupied by the CSI request. Otherwise, n _{CSI_ref} is greater than or equal to The minimum value of , and nn _{CSI_ref} is a valid downlink time slot, Z' represents the CSI processing time requirement of the CSI report, express The number of symbols contained in one time slot.

The communication method, device, chip and module device provided in the embodiments of the present application are further described below:

Please refer to Figure 2, which is a flow chart of a communication method provided in an embodiment of the present application, and the communication method includes step 201. The execution subject of the method shown in Figure 2 may be a terminal device, or the subject may be a chip in the terminal device. Alternatively, the execution subject of the method shown in Figure 2 may also be other types of products, and those skilled in the art may further expand on the content disclosed in the specification. The execution subject of the method shown in Figure 2 takes a terminal device as an example. Among them:

201. The terminal device executes a first fallback scheme corresponding to the first communication scheme. Both the first communication scheme and the first fallback scheme are schemes for executing the target operation. The first communication scheme is different from the first fallback scheme. The first fallback scheme is determined based on network configuration information and/or protocol predefinition and/or protocol specification information.

Optionally, the first fallback scheme corresponding to the first communication scheme may be understood as: a scheme adopted by the terminal device to perform the target operation if the first communication scheme is disabled or cannot be used.

Optionally, the first communication solution and the first fallback solution use different technologies. For example, the first communication solution is a solution based on AI technology, and the first fallback solution is a solution based on non-AI technology. Alternatively, the first communication solution is a solution based on non-AI technology, and the first fallback solution is a solution based on AI technology.

Optionally, the technology used in the first communication scheme and the first fallback scheme may be the same, and the configuration information of the first communication scheme and the first fallback scheme is not exactly the same. For example, the first communication scheme and the first fallback scheme are both schemes based on AI technology, but the configuration information of the first communication scheme and the first fallback scheme is not exactly the same, resulting in the first communication scheme and the first fallback scheme being different. Alternatively, the first communication scheme and the first fallback scheme are both schemes based on non-AI technology, but the configuration information of the first communication scheme and the first fallback scheme is not exactly the same, resulting in the first communication scheme and the first fallback scheme being different.

Optionally, the first communication scheme is different from the first fallback scheme, which can be understood as the measurement result corresponding to the first communication scheme is different from the measurement result corresponding to the first fallback scheme. For example, the measurement result corresponding to the first communication scheme includes compressed channel information, and the measurement result corresponding to the first fallback scheme includes codebook information; for example, the measurement result corresponding to the first communication scheme includes the best N measurement result information in the measurement results, and the measurement result corresponding to the first fallback scheme includes the best N result information in the measurement results and the results predicted based on the measurement results.

In a possible implementation, the target operation includes CSI measurement and/or CSI acquisition and/or CSI report reporting.

In the embodiment of the present application, the first fallback solution can be determined by one of the following three methods:

1. The first fallback solution is determined based on the network configuration information.

In one possible implementation, the network configuration information is the first CSI report configuration information, and the first CSI report configuration information includes the configuration information of the first communication scheme and the configuration information of the first fallback scheme. That is, the configuration information of the first communication scheme and the configuration information of the fallback scheme corresponding to the first communication scheme are included in the same CSI report configuration information. Based on this optional method, the network device can flexibly configure the fallback scheme corresponding to the first communication scheme.

Optionally, the configuration information of the first communication scheme may include measurement resource configuration information and/or CSI-related configuration information. The measurement resource configuration information is used to configure CSI-RS resources and/or SSB resources for CSI measurement. Optionally, the CSI-related configuration information may include one or more of the following information: AI enabling information, AI model input format, AI model output format, AI model input size, AI model output size, quantization scheme, AI model identifier, report quantity information (reportQuantity), codebook configuration information, number of reported reference signals (nrofReportedRS), number of reported groups Number (nrofReportedGroups), report configuration type.

Optionally, the configuration information of the first fallback scheme includes codebook configuration information and/or measurement resource-related configuration information and/or CSI-related configuration information.

Optionally, the codebook configuration information is used to configure any of the following codebooks: R15 Type 1 codebook (R15Type1codebook), R15 Type 2 codebook (R15Type2codebook), R16 Type 2 codebook (R16TypeII codebook), R16 Type 2 port selection codebook (R16TypeII port selection codebook), R18 Type 2 codebook or R17 Type 2 port selection codebook (R17TypeII port selection codebook). Optionally, the codebook configuration information may also configure other types of codebooks, which is not limited in the embodiments of the present application.

Optionally, the measurement resource configuration information included in the configuration information of the first communication scheme is the same as the measurement resource configuration information included in the configuration information of the first fallback scheme.

In another possible implementation, the network configuration information may not be the CSI report configuration information, and the network configuration information may be other configuration information from the network device, which is not limited in the embodiment of the present application.

2. The first fallback solution is determined based on the protocol predefined information.

In the embodiment of the present application, the protocol predefined information may also be referred to as protocol specification information. The following introduces several possible implementations of determining the first fallback solution based on the protocol predefined information:

1) The measurement resource configuration information and/or CSI-related configuration information in the second CSI report configuration information is also used for the first fallback solution, and the second CSI report configuration information includes configuration information of the first communication solution.

Among them, the second CSI report configuration information refers to the CSI report configuration information including the configuration information of the first communication scheme. The configuration information of the first communication scheme includes measurement resource configuration information and/or CSI-related configuration information. In addition to being used for the first communication scheme, the measurement resource configuration information and/or CSI-related configuration information in the second CSI report configuration information are also used for the first fallback scheme. That is to say, the terminal device can use the measurement resource configuration information of the first communication scheme as the measurement resource configuration information of the first fallback scheme, and/or, the terminal device can use the CSI-related configuration information of the first communication scheme as the CSI-related configuration information of the first fallback scheme. Determining the first fallback scheme based on this method does not require additional signaling to indicate the measurement resource configuration information and/or CSI-related configuration information of the first fallback scheme to the terminal device, which is conducive to saving transmission overhead.

In one possible implementation, the codebook of the first fallback solution is an R16 type 2 codebook. That is, the protocol may predetermine that the codebook of the first fallback solution is an R16 type 2 codebook, so that there is no need to indicate the codebook configuration information of the first fallback solution to the terminal device through additional signaling, which is conducive to saving transmission overhead.

Optionally, the codebook parameters of the R16 type 2 codebook may be: numberOfPMI-SubbandsPerCQI-Subband-r16=2, paramCombination-r16=1. Alternatively, the codebook parameters of the R16 type 2 codebook may also be other values, which are not limited in the embodiments of the present application.

Optionally, the protocol may also predefine that the codebook of the first fallback solution is a codebook other than the R16 type 2 codebook, which is not limited in the embodiment of the present application.

In a possible implementation, in a first fallback scheme, the CSI is calculated based on a CSI-RS that is the most recent and no later than a CSI reference resource.

In a possible implementation, the second CSI report configuration information further includes CSI report time information; in the first fallback solution, the CSI report time information in the second CSI report configuration information is ignored, wherein the CSI report time information is used to indicate the time/time slot corresponding to the CSI included in the CSI report.

In a possible implementation, in a first fallback scheme, the CSI is calculated based only on the measurement resources, and the CSI report only includes all or part of the measurement results corresponding to the measurement resources.

In a possible implementation, in a first fallback scheme, the CSI is obtained based on a configured measurement reference signal.

In a possible implementation, in a first fallback solution, the reference signal included in the CSI report comes from a configured measurement reference signal.

2) The configuration information of the first fallback scheme is the configuration information associated with the second CSI report, the second CSI report is the CSI report that is closest to the first CSI report and is obtained based on a scheme other than the first communication scheme, and the first CSI report is a CSI report obtained based on the first communication scheme.

For example, the first communication scheme is a scheme for performing CSI measurement and/or CSI acquisition and/or CSI report reporting based on AI technology, and the first fallback scheme is a scheme for performing CSI measurement and/or CSI acquisition and/or CSI report reporting based on non-AI technology. Assume that at time t1, the terminal device originally needs to generate CSI report 4 based on AI technology, but due to insufficient processing power of the terminal device, AI technology is disabled. Therefore, the terminal device needs to determine the first fallback scheme and perform CSI measurement and/or CSI acquisition and/or CSI report reporting based on the first fallback scheme. Before time t1, the terminal device assumes that CSI report 1, CSI report 2 and CSI report 3 are generated in sequence based on non-AI technology. Since CSI report 3 is closest to CSI report 4, the terminal device uses the codebook configuration information associated with CSI report 3 and/or the configuration information related to the measurement resource and/or the configuration information related to the CSI as the configuration information of the first fallback scheme.

The first fallback scheme is determined based on this method, and there is no need to indicate the configuration information of the first fallback scheme to the terminal device through additional signaling, which is beneficial to saving transmission overhead.

In one possible implementation, the measurement resources associated with the second CSI report are the same as the measurement resources associated with the first CSI report; and/or the number of ports of the measurement resources associated with the second CSI report is the same as the number of ports of the measurement resources associated with the first CSI report. Based on this possible implementation, there is no need to configure additional measurement resources for the first fallback solution, which is conducive to reducing transmission overhead.

3) A plurality of candidate fallback schemes are defined in the protocol predefined information, and the first fallback scheme is a fallback scheme selected from the plurality of candidate fallback schemes based on an event and/or an implementation of a terminal device.

For example, the protocol predefined information predefines fallback solution 1, fallback solution 2, and fallback solution 3. The terminal device selects fallback solution 3 from fallback solution 1, fallback solution 2, and fallback solution 3 as the first fallback solution based on an event and/or implementation of the terminal device.

The first fallback scheme is determined based on this method, and there is no need to indicate the configuration information of the first fallback scheme to the terminal device through additional signaling, which is beneficial to saving transmission overhead.

In one possible implementation, the multiple candidate fallback schemes include one of the following codebooks with different parameter configurations: R15 type 1 codebook, R16 type 2 codebook, R17 type 2 codebook, or R18 type 2 codebook.

For example, the protocol predefined information predefines fallback scheme 1, fallback scheme 2, and fallback scheme 3. The codebooks of fallback scheme 1, fallback scheme 2, and fallback scheme 3 are all R15 type 1 codebooks. However, the codebook parameter of the R15 type 1 codebook in fallback scheme 1 is parameter 1, the codebook parameter of the R15 type 1 codebook in fallback scheme 2 is parameter 2, and the codebook parameter of the R15 type 1 codebook in fallback scheme 3 is parameter 3. Parameter 1, parameter 2, and parameter 3 are not the same.

Different parameters reflect different codebook accuracies at some level. Therefore, by making the codebook parameters of different candidate fallback schemes different, the codebook accuracies in different candidate fallback schemes can be made different, so as to meet the codebook selection requirements in different scenarios.

In a possible implementation, a fallback solution is selected from a plurality of candidate fallback solutions as a first fallback solution based on an event and/or an implementation of a terminal device, which may be as follows:

If a non-zero-power channel state information reference signal (NZP CSI-RS) is configured as a CSI interference measurement (CSI Interference Measurement, CSI-IM), the first fallback scheme is a fallback scheme in which the codebook is an R16 type 2 codebook among multiple candidate fallback schemes; and/or,

If the frequency division duplex FDD is less than 3 GHz, the first fallback scheme is a fallback scheme in which the codebook is an R17 type 2 codebook among multiple candidate fallback schemes; and/or,

If the speed is greater than the first threshold, or the computing resources are limited, the first fallback scheme is a fallback scheme in which the codebook is a type 1 codebook among the multiple candidate fallback schemes.

Based on this possible implementation, the selected codebook can be more matched to the corresponding scenario. For example, NZP CSI-RS is configured as CSI-IM, which is usually used to simulate multi-user interference. Therefore, if NZP CSI-RS is configured as CSI-IM, it means that the target scenario of this CSI report is a multi-user scenario. The typical application scenario of the R16 type 2 codebook is for multi-user scenarios. For another example, the applicable scenario of the R17 type 2 codebook is frequency division duplex FDD less than 3GHz. For another example, in high-speed scenarios, there are usually single users, and the type 1 codebook can meet the needs.

3. The first fallback solution is determined based on the network configuration information and the protocol predefined information.

In one possible implementation, multiple candidate fallback schemes are defined in the protocol predefined information, and the CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme. That is, when multiple candidate fallback schemes are defined in the protocol predefined information, the configuration information of the fallback scheme to be used can be indicated by the CSI report configuration information.

For example, the protocol predefined information predefines fallback solution 1, fallback solution 2, and fallback solution 3. If the CSI report configuration information includes configuration information of fallback solution 3, the terminal device determines that fallback solution 3 is the first fallback solution.

Based on this possible implementation, when multiple candidate fallback solutions are defined in the protocol predefined/standard information, the network device can flexibly indicate a fallback solution as the first fallback solution.

Based on the method described in FIG. 2 , when the first communication scheme is disabled or cannot be used, the terminal device can successfully fall back from the first communication scheme to another communication scheme, thereby avoiding an error message from the terminal device.

Please refer to Figure 3, which is a flow chart of a communication method provided in an embodiment of the present application, and the communication method includes step 301. The execution subject of the method shown in Figure 3 may be a terminal device, or the subject may be a chip in the terminal device. Or the execution subject of the method shown in Figure 3 may also be other types of products, and those skilled in the art may further expand it based on the contents disclosed in the specification. The execution subject of the method shown in Figure 3 takes a terminal device as an example. Among them:

301. The terminal device executes a first fallback scheme corresponding to the first communication scheme, where the first communication scheme is a scheme for performing a target operation, and the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report submission. The first fallback scheme is to ignore the CSI measurement results before this CSI report or report.

Optionally, the first communication scheme is a scheme for performing a target operation based on AI technology. Alternatively, the first communication scheme is a scheme for performing a target operation based on non-AI technology, which is not limited in the embodiments of the present application.

Optionally, the first fallback scheme corresponding to the first communication scheme may be understood as: a scheme adopted by the terminal device to perform the target operation if the first communication scheme is disabled or cannot be used.

The first fallback solution is to ignore the current CSI report or the previous CSI measurement results. When the signaling scheme is disabled or cannot be used, the terminal device ignores the current CSI report (ie, does not report the CSI report this time) or reports the previous CSI measurement results.

Based on the method described in FIG. 3 , when the first communication scheme is disabled or cannot be used, it is possible to avoid the terminal device reporting an error.

Please refer to Figure 4, which is a schematic diagram of the structure of a communication device in an embodiment of the present application. The communication device can be used to perform some or all of the functions of the terminal device in the above method embodiment. The device can be a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device. Among them, the communication device can also be a chip system. The communication device shown in Figure 4 includes a processing unit 401. Optionally, the communication device may also include a communication unit 402, which is used to send and receive data. The communication unit integrates a receiving unit and a sending unit. The communication unit may also be called a transceiver unit. Alternatively, the communication unit may also be split into a receiving unit and a sending unit. Among them:

Processing unit 401 is used to execute a first fallback scheme corresponding to the first communication scheme. The first communication scheme and the first fallback scheme are both schemes for executing the target operation. The first communication scheme and the first fallback scheme are not the same. The first fallback scheme is determined based on network configuration information and/or protocol predefinition and/or protocol specification information.

In a possible implementation, the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report reporting.

In a possible implementation, the network configuration information is first CSI report configuration information, and the first CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme.

In one possible implementation, the configuration information of the first fallback scheme is used to configure any one of the following codebooks: an R15 type 1 codebook, an R15 type 2 codebook, an R16 type 2 codebook, an R16 type 2 port selection codebook, an R18 type 2 codebook, or an R17 type 2 port selection codebook.

In a possible implementation, the measurement resource configuration information and/or CSI-related configuration information in the second CSI report configuration information is also used for the first fallback scheme, and the second CSI report configuration information includes configuration information of the first communication scheme.

In a possible implementation, the codebook of the first fallback solution is an R16 type 2 codebook.

In a possible implementation, in a first fallback scheme, the CSI is calculated based on a CSI-RS that is the most recent and no later than a CSI reference resource.

In a possible implementation, the second CSI report configuration information further includes CSI report time information;

In the first fallback scheme, the CSI reporting time information in the second CSI reporting configuration information is ignored.

In a possible implementation, in a first fallback scheme, the CSI is calculated based only on the measurement resources, and the CSI report only includes all or part of the measurement results corresponding to the measurement resources.

In one possible implementation, the configuration information of the first fallback scheme is the configuration information associated with the second CSI report, the second CSI report is the CSI report that is closest to the first CSI report and is obtained based on a scheme other than the first communication scheme, and the first CSI report is a CSI report obtained based on the first communication scheme.

In one possible implementation, the measurement resources associated with the second CSI report are the same as the measurement resources associated with the first CSI report; and/or the number of ports of the measurement resources associated with the second CSI report is the same as the number of ports of the measurement resources associated with the first CSI report.

In a possible implementation, multiple candidate fallback solutions are defined in the protocol predefined/specification information, and the first fallback solution is a fallback solution selected from the multiple candidate fallback solutions based on an event and/or an implementation of a terminal device.

In one possible implementation, the multiple candidate fallback schemes include one of the following codebooks with different parameter configurations: R15 type 1 codebook, R16 type 2 codebook, R17 type 2 codebook, or R18 type 2 codebook.

In one possible implementation, if the non-zero power channel state information reference signal NZP CSI-RS is configured as a channel state information interference measurement CSI-IM, the first fallback scheme is a fallback scheme in which the codebook is an R16 type 2 codebook among multiple candidate fallback schemes; and/or,

If the frequency division duplex FDD is less than 3 GHz, the first fallback scheme is a fallback scheme in which the codebook is an R17 type 2 codebook among multiple candidate fallback schemes; and/or,

If the speed is greater than the first threshold, or the computing resources are limited, the first fallback scheme is a fallback scheme in which the codebook is a type 1 codebook among the multiple candidate fallback schemes.

In a possible implementation, multiple candidate fallback schemes are defined in the protocol predefined/specification information, and the CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme.

Please refer to Figure 4, which is a schematic diagram of the structure of a communication device in an embodiment of the present application. The communication device can be used to perform some or all of the functions of the terminal device in the above method embodiment. The device can be a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device. Among them, the communication device can also be a chip system. The communication device shown in Figure 4 includes a processing unit 401. Optionally, the communication device may also include a communication unit 402, which is used to send and receive data. The communication unit integrates a receiving unit and a sending unit. The communication unit may also be called a transceiver unit. Alternatively, the communication unit may also be split into a receiving unit and a sending unit. Among them:

Processing unit 401 is used to execute a first fallback scheme corresponding to the first communication scheme. The first communication scheme is a scheme for performing a target operation. The target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report submission. The first fallback scheme is to ignore the CSI measurement results before this CSI report or report.

The present application also provides a chip, which can execute the relevant steps of the terminal device in the above method embodiment. The chip includes a processor and a communication interface, and the processor is configured to enable the chip to perform the following operations:

Execute a first fallback scheme corresponding to the first communication scheme, the first communication scheme and the first fallback scheme are both schemes for executing the target operation, the first communication scheme and the first fallback scheme are different, and the first fallback scheme is determined based on network configuration information and/or protocol predefinition and/or protocol specification information.

In a possible implementation, the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report reporting.

In a possible implementation, the network configuration information is first CSI report configuration information, and the first CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme.

In a possible implementation, the configuration information of the first fallback scheme is used to configure any one of the following codebooks: an R15 type 1 codebook, an R15 type 2 codebook, an R16 type 2 codebook, an R16 type 2 port selection codebook, an R18 type 2 codebook, or an R17 type 2 port selection codebook.

In a possible implementation, the measurement resource configuration information and/or CSI-related configuration information in the second CSI report configuration information is also used for the first fallback scheme, and the second CSI report configuration information includes configuration information of the first communication scheme.

In a possible implementation, the codebook of the first fallback scheme is an R16 type 2 codebook.

In a possible implementation, in the first fallback scheme, the CSI is calculated based on a CSI-RS that is most recent and no later than a CSI reference resource.

In a possible implementation, the second CSI report configuration information further includes CSI report time information;

In the first fallback scheme, the CSI reporting time information in the second CSI reporting configuration information is ignored.

In a possible implementation, in the first fallback scheme, the CSI is calculated only based on the measurement resources, and the CSI report only includes all or part of the measurement results corresponding to the measurement resources.

In one possible implementation, the configuration information of the first fallback scheme is configuration information associated with a second CSI report, the second CSI report is a CSI report that is closest to the first CSI report and is obtained based on a scheme other than the first communication scheme, and the first CSI report is a CSI report obtained based on the first communication scheme.

In a possible implementation, the measurement resources associated with the second CSI report are the same as the measurement resources associated with the first CSI report; and/or the number of ports of the measurement resources associated with the second CSI report is the same as the number of ports of the measurement resources associated with the first CSI report.

In a possible implementation, a plurality of candidate fallback schemes are defined in the protocol predefined/specification information, and the first fallback scheme is a fallback scheme selected from the plurality of candidate fallback schemes based on an event and/or an implementation of a terminal device.

In one possible implementation, the multiple candidate fallback schemes include one of the following codebooks with different parameter configurations: an R15 type 1 codebook, an R16 type 2 codebook, an R17 type 2 codebook, or an R18 type 2 codebook.

In one possible implementation, if the non-zero power channel state information reference signal NZP CSI-RS is configured as a channel state information interference measurement CSI-IM, then the first fallback scheme is a fallback scheme in which the codebook is an R16 type 2 codebook among the multiple candidate fallback schemes; and/or,

If the frequency division duplex FDD is less than 3 GHz, the first fallback scheme is a fallback scheme in which the codebook is an R17 type 2 codebook among the multiple candidate fallback schemes; and/or,

If the speed is greater than a first threshold, or computing resources are limited, the first fallback scheme is a fallback scheme in which the codebook is a type 1 codebook among the multiple candidate fallback schemes.

In a possible implementation, a plurality of candidate fallback schemes are defined in the protocol predefined/specification information, and the CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme.

The present application also provides a chip, which can execute the relevant steps of the terminal device in the above method embodiment. The chip includes a processor and a communication interface, and the processor is configured to enable the chip to perform the following operations:

Execute a first fallback scheme corresponding to the first communication scheme, where the first communication scheme is a scheme for executing the target operation, where the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report submission, and the first fallback scheme is to ignore the CSI measurement results before this CSI report or report.

Please refer to FIG5, which is a schematic diagram of the structure of a terminal device provided by an embodiment of the present invention. The terminal device 500 may include a memory 501 and a processor 502. Optionally, it also includes a communication interface 503. The memory 501, the processor 502 and the communication interface 503 are connected via one or more communication buses. The communication interface 503 is controlled by the processor 502 to send and receive information.

The memory 501 may include a read-only memory and a random access memory, and provides instructions and data to the processor 502 . A portion of the memory 501 may also include non-volatile random access memory.

The communication interface 503 is used to receive or send data.

The processor 502 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, or, optionally, the processor 502 may be any conventional processor, etc. Among them:

The memory 501 is used to store program instructions.

The processor 502 is used to call the program instructions stored in the memory 501.

The processor 502 calls the program instructions stored in the memory 501 to enable the terminal device 500 to execute the method executed by the terminal device in the above method embodiment.

As shown in Figure 6, Figure 6 is a schematic diagram of the structure of a module device provided in an embodiment of the present application. The module device 600 can execute the relevant steps of the terminal device in the aforementioned method embodiment. The module device 600 includes: a communication module 601, a power module 602, a storage module 603 and a chip 604.

Among them, the power module 602 is used to provide power to the module device; the storage module 603 is used to store data and instructions; the communication module 601 is used for internal communication of the module device, or for communication between the module device and external devices; the chip 604 is used to execute the method executed by the terminal device in the above method embodiment.

It should be noted that the contents not mentioned in the embodiments corresponding to FIG. 5 and FIG. 6 and the specific implementation methods of each step can be found in the contents of the method embodiment, which will not be repeated here.

An embodiment of the present application also provides a computer-readable storage medium, in which instructions are stored. When the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.

The embodiment of the present application also provides a computer program product. When the computer program product runs on a processor, the method flow of the above method embodiment is implemented.

Regarding the various modules/units included in the various devices and products described in the above embodiments, they can be software modules/units, or hardware modules/units, or they can be partially software modules/units and partially hardware modules/units. For example, for various devices and products applied to or integrated in a chip, the various modules/units included therein can all be implemented in the form of hardware such as circuits, or at least some of the modules/units can be implemented in the form of software programs, which run on the integrated processor inside the chip, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules/units included therein can all be implemented in the form of hardware such as circuits, and different modules/units can be located in the same part of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules/units can be implemented in the form of software programs. The software programs run on the integrated processor inside the chip, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits. The unit can be implemented in the form of a software program, which runs on a processor integrated in the chip module, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits; for each device or product applied to or integrated in the terminal, the modules/units contained therein can all be implemented in the form of hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least some modules/units can be implemented in the form of a software program, which runs on a processor integrated in the terminal, and the remaining (if any) modules/units can be implemented in the form of hardware such as circuits. way to achieve it.

It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain operations can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

The descriptions of the various embodiments provided in this application can refer to each other, and the descriptions of the various embodiments have different focuses. For parts that are not described in detail in a certain embodiment, refer to the relevant descriptions of other embodiments. For the convenience and simplicity of description, for example, the functions of the various devices and equipment provided in the embodiments of this application and the operations performed can refer to the relevant descriptions of the method embodiments of this application, and the various method embodiments and the various device embodiments can also refer to, combine or quote each other.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (23)

A communication method, characterized in that the method comprises: Execute a first fallback scheme corresponding to a first communication scheme, wherein the first communication scheme and the first fallback scheme are both schemes for executing a target operation, the first communication scheme and the first fallback scheme are different, and the first fallback scheme is determined based on network configuration information and/or protocol predefinition and/or protocol specification information. The method according to claim 1 is characterized in that the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report reporting. The method according to claim 2, characterized in that The network configuration information is first CSI report configuration information, and the first CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme. The method according to claim 3 is characterized in that the configuration information of the first fallback scheme is used to configure any one of the following codebooks: R15 type 1 codebook, R15 type 2 codebook, R16 type 2 codebook, R16 type 2 port selection codebook, R18 type 2 codebook or R17 type 2 port selection codebook. The method according to claim 2, characterized in that The measurement resource configuration information and/or CSI-related configuration information in the second CSI report configuration information is also used for the first fallback scheme, and the second CSI report configuration information includes configuration information of the first communication scheme. The method according to claim 5 is characterized in that the codebook of the first fallback scheme is an R16 type 2 codebook. The method according to claim 5 is characterized in that, in the first fallback scheme, the CSI is calculated based on the CSI-RS that is most recent and no later than the CSI reference resource. The method according to claim 5, characterized in that the second CSI report configuration information further includes CSI report time information; In the first fallback scheme, the CSI reporting time information in the second CSI reporting configuration information is ignored. The method according to claim 5 is characterized in that, in the first fallback scheme, the CSI is calculated only based on the measurement resources, and the CSI report only contains all or part of the measurement results corresponding to the measurement resources. The method according to claim 2, characterized in that The configuration information of the first fallback scheme is the configuration information associated with the second CSI report, the second CSI report is the CSI report that is closest to the first CSI report and is obtained based on a scheme other than the first communication scheme, and the first CSI report is a CSI report obtained based on the first communication scheme. The method according to claim 10 is characterized in that the measurement resources associated with the second CSI report are the same as the measurement resources associated with the first CSI report; and/or the number of ports of the measurement resources associated with the second CSI report is the same as the number of ports of the measurement resources associated with the first CSI report. The method according to claim 2 is characterized in that a plurality of candidate fallback schemes are defined in the protocol predefined/specification information, and the first fallback scheme is a fallback scheme selected from the plurality of candidate fallback schemes based on an event and/or an implementation of a terminal device. The method according to claim 12, characterized in that the multiple candidate fallback schemes include one of the following codebooks with different parameter configurations: R15 type 1 codebook, R16 type 2 codebook, R17 type 2 codebook or R18 type 2 codebook. The method according to claim 12 or 13, characterized in that If the non-zero power channel state information reference signal NZP CSI-RS is configured as a channel state information interference measurement CSI-IM, then the first fallback scheme is a fallback scheme in which the codebook is an R16 type 2 codebook among the multiple candidate fallback schemes; and/or, If the frequency division duplex FDD is less than 3 GHz, the first fallback scheme is a fallback scheme in which the codebook is an R17 type 2 codebook among the multiple candidate fallback schemes; and/or, If the speed is greater than a first threshold, or computing resources are limited, the first fallback scheme is a fallback scheme in which the codebook is a type 1 codebook among the multiple candidate fallback schemes. The method according to claim 2 is characterized in that a plurality of candidate fallback schemes are defined in the protocol predefined/specification information, and the CSI report configuration information includes configuration information of the first communication scheme and configuration information of the first fallback scheme. A communication method, characterized in that the method comprises: Execute a first fallback scheme corresponding to the first communication scheme, where the first communication scheme is a scheme for executing the target operation, where the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report submission, and the first fallback scheme is to ignore the CSI measurement results before this CSI report or report. A communication device, characterized in that the device comprises: A processing unit is used to execute a first fallback scheme corresponding to a first communication scheme, wherein the first communication scheme and the first fallback scheme are both schemes for executing the target operation, the first communication scheme and the first fallback scheme are different, and the first fallback scheme is determined based on network configuration information and/or protocol predefined and/or protocol specification information. A communication device, characterized in that the device comprises: A processing unit is configured to execute a first fallback scheme corresponding to a first communication scheme, wherein the first communication scheme is configured to execute A scheme for performing the target operation, wherein the target operation includes channel state information CSI measurement and/or CSI acquisition and/or CSI report reporting, and the first fallback scheme is to ignore the CSI measurement result before this CSI report or reporting. A chip, characterized in that it comprises a processor and a communication interface, wherein the processor is configured to execute the method according to any one of claims 1 to 15, or the processor is configured to execute the method according to claim 16. A module device, characterized in that the module device includes a communication module, a power module, a storage module and a chip, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication of the module device, or for communication between the module device and an external device; The chip is used to execute the method according to any one of claims 1 to 15, or the chip is used to execute the method according to claim 16. A terminal device, characterized in that it includes a memory and a processor, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method as described in any one of claims 1 to 15, or execute the method as described in claim 16. A computer-readable storage medium, characterized in that the computer storage medium stores computer-readable instructions, and when the computer-readable instructions are executed on a communication device, the communication device executes the method according to any one of claims 1 to 15, or the communication device executes the method according to claim 16. A computer program or a computer program product, characterized in that it comprises codes or instructions, and when the codes or instructions are run on a computer, the computer is caused to execute the method according to any one of claims 1 to 16.