Channel state information processing method and device, communication equipment and storage medium

Abstract

The embodiment of the invention provides a CSI processing method and device, communication equipment and a storage medium, and the CSI processing method is executed by a terminal, and comprises the steps: executing the measurement of a reference signal RS and / or the reporting of the CSI based on a CSI prediction result.

Description

[0001] This application is a divisional application of an invention patent application with an application date of June 30, 2022, application number 202280002529.X, and invention name “Channel state information processing method and device, communication equipment and storage medium”. Technical Field

[0002] The present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a method and apparatus for processing channel status information (CSI), a communication device, and a storage medium. Background Art

[0003] In the related art, a user equipment (UE) measures the CSI of a channel and reports the CSI to a network side, so that the network side, such as a base station, can learn the state of the channel in order to schedule data transmission resources.

[0004] The UE or base station can configure resource scheduling in advance by predicting the CSI at future times.

[0005] When measuring and reporting measurement results, the UE often performs measurement and reporting operations based on the fixed configuration information of the base station, which often leads to too frequent or too sparse CSI measurements and reports, resulting in unnecessary resource overhead and power consumption waste, or the base station cannot obtain the channel status in time. Summary of the invention

[0006] The embodiments of the present disclosure provide a CSI processing method and apparatus, a communication device, and a storage medium.

[0007] A first aspect of an embodiment of the present disclosure provides a CSI processing method, which is executed by a terminal and includes:

[0008] Based on the CSI prediction result, reference signal (RS) measurement and / or CSI reporting are performed.

[0009] A second aspect of an embodiment of the present disclosure provides a CSI processing method, which is executed by a base station and includes:

[0010] Acquire CSI prediction results; the CSI prediction results are used for RS measurement and / or CSI reporting.

[0011] A third aspect of an embodiment of the present disclosure provides a CSI processing device, which is applied to a terminal, including:

[0012] The processing unit is configured to perform RS measurement and / or CSI reporting based on the CSI prediction result.

[0013] A fourth aspect of an embodiment of the present disclosure provides a CSI processing device, which is applied to a base station, including:

[0014] The acquisition unit is configured to acquire a CSI prediction result; the CSI prediction result is used for RS measurement and / or CSI reporting.

[0015] A fifth aspect of an embodiment of the present disclosure provides a communication device, comprising a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein the processor executes the CSI processing method provided in the first aspect or the second aspect when running the executable program.

[0016] A sixth aspect of an embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores an executable program; after the executable program is executed by a processor, the CSI processing method provided in the first aspect or the second aspect can be implemented.

[0017] The technical solution provided by the embodiment of the present disclosure performs RS measurement and / or CSI reporting based on the CSI prediction result. In this way, the RS measurement behavior and CSI reporting behavior determined according to the CSI prediction result at the future moment can better match the predicted change of CSI, thereby improving the flexibility of performing measurement and reporting, and reducing the low accuracy of measurement and reporting control, resulting in high resource overhead and power consumption waste.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0020] Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

[0021] Figure 2 is a flowchart of a method for processing CSI according to an exemplary embodiment;

[0022] Figure 3 is a schematic diagram of a CSI prediction method according to an exemplary embodiment;

[0023] Figure 4 is a flowchart of a method for processing CSI according to an exemplary embodiment;

[0024] Figure 5is a flowchart of a method for processing CSI according to an exemplary embodiment;

[0025] Figure 6 is a flowchart of a method for processing CSI according to an exemplary embodiment;

[0026] Figure 7 is a flowchart of a method for processing CSI according to an exemplary embodiment;

[0027] Figure 8 is a flowchart of a method for processing CSI according to an exemplary embodiment;

[0028] Fig. 9 is a flow chart of a method for determining a starting time according to an exemplary embodiment;

[0029] Fig.10 is a structural schematic diagram of a CSI processing device according to an exemplary embodiment;

[0030] Fig.11 is a structural schematic diagram of a CSI processing device according to an exemplary embodiment;

[0031] Fig.12 is a schematic diagram of the structure of a terminal according to an exemplary embodiment;

[0032] Fig.13 The diagram is a schematic structural diagram of a communication device according to an exemplary embodiment. DETAILED DESCRIPTION

[0033] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present invention. Instead, they are only examples of devices and methods consistent with some aspects of the embodiments of the present invention.

[0034] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present disclosure. The singular forms of "a", "said", and "the" used in the present disclosure are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0035] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0036] Please refer to Figure 1 , which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. Figure 1 As shown, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of terminals 11 and a plurality of access devices 12 .

[0037] Among them, the terminal 11 can be a device that provides voice and / or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a radio access network (RAN). The terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an Internet of Things terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user terminal (user equipment, terminal). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, for example, it can be a driving computer with wireless communication function, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

[0038] The access device 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be the next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0039] Among them, the access device 12 can be an evolved access device (eNB) adopted in a 4G system. Alternatively, the access device 12 can also be an access device (gNB) adopting a centralized distributed architecture in a 5G system. When the access device 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (Physical, PHY) layer protocol stack. The specific implementation method of the access device 12 is not limited in the embodiments of the present disclosure.

[0040] A wireless connection can be established between the access device 12 and the terminal 11 through a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0041] Optionally, the wireless communication system may further include a network management device 13. Several access devices 12 are respectively connected to the network management device 13. The network management device 13 may be a core network device in the wireless communication system. For example, the network management device 13 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may also be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF) or a home subscriber server (HSS). The implementation form of the network management device 13 is not limited in the embodiments of the present disclosure.

[0042] like Figure 2 As shown, the embodiment of the present disclosure provides a CSI processing method, which is executed by a terminal, including:

[0043] S110: Based on the CSI prediction result, perform RS measurement and / or CSI reporting.

[0044] In the embodiment of the present disclosure, CSI is channel state information, which can indicate the channel properties of the communication link between the terminal and the base station. For example, CSI may include: at least one of: channel quality indicator (CQI), rank indicator (RI) and precoding indicator (PMI).

[0045] RS is a reference signal used to measure and obtain CSI. For example, RS can be carried in CSI resource configuration information (CSI Resource Configuration) sent by the base station. Among them, CSI resource configuration information can be included in CSI reporting configuration information sent by the base station. CSI reporting configuration information can be used to indicate the resource information required for the terminal to perform CSI measurement and CSI reporting. For example, CSI resource configuration information and CSI reporting configuration information can be carried and sent to the terminal by radio resource control (Radio Resource Control, RRC) signaling.

[0046] Exemplarily, the RS may be a Channel Status Information-Reference Signal (CSI-RS), or the RS may be a Synchronization Signal Block (SSB), etc.

[0047] In one embodiment, RS measurement may include: periodic measurement and non-periodic measurement. The periodic measurement may include periodic measurement based on the period indicated by the base station, and may also include semi-static measurement that starts and ends based on activation instructions and deactivation instructions sent by the base station. Non-periodic measurement may be a measurement performed once based on the indication information sent by the base station.

[0048] In one embodiment, CSI reporting may include: periodic reporting and non-periodic reporting. The periodic reporting may include periodic reporting based on a period indicated by a base station, or may include semi-static reporting that starts and ends based on activation instructions and deactivation instructions issued by the base station. Non-periodic reporting may be a one-time reporting based on the indication information issued by the base station.

[0049] In one embodiment, the CSI prediction results may include at least one of the following: CSI results predicted for one or more target moments, CSI results predicted for a target time period, CSI time domain predictions for one or more target moments, and CSI time domain predictions for a target time period.

[0050] Among them, the target time or target time period can be configured and indicated by the base station or determined by the terminal itself, for example, determined by the terminal according to the current time and / or a predetermined agreement between the terminal and the base station. The CSI results predicted for one or more target time periods or target time periods can be predicted based on the CSI measured at the current time and / or the CSI measured in a preset time window before the current time. For example, the prediction can be based on a preset artificial intelligence (AI) model.

[0051] For example, Figure 3 As shown, based on the CSI prediction model, multiple historical moments t0, t1, ...t k Multiple CSIs measured: CSI t0, CSI t1, ... CSI t k etc., and obtain a target time t in the future N Predicted CSI t N .

[0052] In one embodiment, the CSI predicted for one or more target moments or target time periods may also be predicted based on the CSI currently measured and / or the CSI measured within a preset time window before the current moment, as well as the current state information and / or information of the terminal.

[0053] In one embodiment, the CSI time domain prediction situation may include at least one of the following:

[0054] The change of CSI over time, the recommended measurement period of RS and the recommended reporting period of CSI, etc. The CSI in the CSI time domain change can be the CSI measured by the current RS, or the CSI results predicted at one or more target time or target time period, etc.

[0055] In one embodiment, the change of CSI over time may include the CSI change rate within a preset period, wherein the preset period may be a fixed value, or may be a time period corresponding to when the predicted CSI change amplitude reaches a preset value.

[0056] Exemplarily, the CSI change rate within a preset time period may include: if the CQI currently measured by the RS is level 3, when the predicted change range reaches level 5, that is, the CQI measured by the RS is predicted to be level 8, the CQI change rate between the current moment and the moment when the CQI measured by the RS is predicted to be level 8.

[0057] In one embodiment, the CSI prediction result may further include: a predicted RS measurement frequency and / or a CSI reporting frequency, or a predicted valid duration of a single RS measurement result and / or a predicted valid duration of a single CSI reporting result, etc.

[0058] In one embodiment, the measurement of the RS may be to measure the channel state based on the RS to obtain the CSI corresponding to the RS. The reporting of the CSI may be to report the CSI obtained by the current RS measurement to the base station.

[0059] In one embodiment, the CSI prediction result may further include: the effective duration of the CSI reported at the target time. The target time may be the current time or a time after the current time. The effective duration may indicate the duration for which the CSI reported at the target time can continuously indicate the channel state, wherein the effective duration may be expressed by a specific duration or a number of time units. For example, when the effective duration is 10s, it may indicate that within 10s from the target time, the CSI reported at the target time may indicate the channel state within the 10s.

[0060] For example, the time unit may be a time slot. When the effective time length is 100 slots, it may mean that within 100 slots from the target time, the CSI reported at the target time may indicate the channel state within the 100 slots.

[0061] In one embodiment, the effective duration can also be indicated by the effective duration identifier (IdentityDocument, ID) configured in advance by RRC, for example, ID#1 represents 50 slots, ID#2 represents 100 slots, ID#3 represents 200 slots, and so on.

[0062] Exemplarily, the terminal indicates that the effective duration is 100 slots by reporting ID#2.

[0063] In one embodiment, the CSI prediction result may be a CSI prediction result obtained by the terminal itself, or may be a CSI prediction result obtained by receiving the prediction of the base station. For example, step S110 may include: performing RS measurement based on the RS measurement period indicated by the CSI prediction result sent by the base station, and / or performing CSI reporting based on the CSI reporting period indicated by the CSI prediction result sent by the base station.

[0064] The recommended measurement period of the RS and / or the recommended reporting period of the CSI may be directly indicated by the CSI prediction result, or may be determined based on the effective duration indicated by the CSI prediction result. For example, the recommended measurement period of the RS and / or the recommended reporting period of the CSI may be equal to the effective duration, or may be less than the effective duration, or may have a preset relationship with the effective duration.

[0065] Exemplarily, when the effective duration is 10 seconds, the recommended measurement period of the RS and / or the recommended reporting period of the CSI may be 10 seconds, or 8 seconds, or 1 / 2 of the effective duration, that is, 5 seconds, and the like.

[0066] In one embodiment, the recommended measurement period of the RS and / or the recommended reporting period of the CSI may also be represented by the number of time slots. For example, the recommended measurement period of the RS and / or the recommended reporting period of the CSI may be 5 slots or 10 slots.

[0067] In one embodiment, according to the effective duration reported by the terminal, data transmission of the current terminal or other terminals is performed through the time-frequency resources used for transmitting RS and / or reporting CSI within the effective duration after reporting CSI once. The terminal may ignore at least part of the periodic measurement of RS and / or at least part of the periodic reporting of CSI within the effective duration after reporting CSI once.

[0068] Exemplarily, the CSI reporting period indicated by the first CSI reporting configuration information (CSI Report Config#1) is 40 slots, and CSI reports are performed in the 11th slot, the 51st slot, and the 91st slot, respectively. The CSI reporting period indicated by the second CSI reporting configuration information (CSIReport Config#2) is 80 slots, and CSI reports are performed in the 11th slot and the 91st slot, respectively. When the effective duration in the CSI prediction result is 100 slots, the CSI reports in the 11th slot and the 51st slot in the CSI reporting period corresponding to CSI Report Config#1 can be ignored.

[0069] In one embodiment, when the terminal receives the aperiodic CSI reporting instruction sent by the base station within the effective time, the terminal performs aperiodic CSI reporting.

[0070] For example, if the terminal reports a valid duration of 100 slots in the 1st slot and receives a non-periodic CSI reporting instruction issued by the base station in the 81st slot, it can continue to report CSI according to the instruction of the base station, for example, it can report CSI in the 85th slot, and the reported CSI includes the CSI prediction result.

[0071] In one embodiment, step S110 may further include: sending the CSI prediction result to the base station; performing RS measurement and / or CSI reporting based on the recommended measurement period of the RS and / or the recommended reporting period of the CSI indicated by the base station according to the CSI prediction result. For example, the CSI prediction result may indicate an effective duration, and RS measurement and / or CSI reporting may be performed based on the recommended measurement period of the RS and / or the recommended reporting period of the CSI determined by the base station based on the effective duration.

[0072] For another example, the CSI prediction result may indicate a recommended measurement period for the RS and / or a recommended reporting period for the CSI determined based on the effective duration. After receiving a preset instruction from the base station indicating approval of the recommended measurement period for the RS and / or the recommended reporting period for the CSI, RS measurement and / or CSI reporting may be performed based on the recommended measurement period for the RS and / or the recommended reporting period for the CSI.

[0073] In one embodiment, step S110 may further include: sending the CSI prediction result to the base station; after sending the result to the base station, performing RS measurement and / or CSI reporting based on the CSI prediction result.

[0074] In one embodiment, the recommended measurement period of RS and / or the recommended reporting period of CSI may be determined by the terminal based on the effective duration, or may be determined by the terminal based on the effective duration among multiple candidate RS measurement periods and / or multiple candidate CSI reporting periods indicated by the base station. For example, RS measurement and / or CSI reporting may be performed based on the candidate RS measurement period and / or candidate CSI reporting period that is the same as the effective duration or has the lowest difference.

[0075] Therefore, by determining the recommended period of RS and / or the recommended reporting period of CSI in combination with the effective duration of CSI, it is possible to reduce unnecessary RS measurements and / or CSI reporting caused by improper configuration of the recommended measurement period of RS and / or the recommended reporting period of CSI, thereby reducing resource overhead and power consumption.

[0076] Exemplarily, the candidate CSI reporting periods indicated by the base station include 5s, 8s and 10s. When the valid duration is 10s, the candidate CSI reporting period of 10s can be selected as the recommended reporting period of CSI.

[0077] Exemplarily, the resource configuration information pre-sent by the base station to the terminal through RRC indicates that the alternative RS period and / or alternative CSI reporting period include: the first index value index#1 represents the RS period and / or CSI reporting period as 5 slots, and the second index value index#2 represents the RS period and / or CSI reporting period as 10 slots. If the terminal selects the recommended period of RS and / or the recommended reporting period of CSI as 10s based on the effective duration, the second index value can be sent to the base station, thereby reducing the amount of reported data, which is conducive to the base station to know the period value selected by the terminal.

[0078] In this way, by predicting the CSI at a future moment, the RS measurement behavior and CSI reporting behavior determined based on the CSI prediction result can better match the predicted change of CSI, so that the RS measurement and CSI reporting behavior can be flexibly adjusted as the CSI prediction result changes, such as adjusting the operation cycle or frequency, etc. Therefore, the flexibility of the terminal in performing RS measurement and CSI reporting operations can be improved, and the low accuracy of the control of the measurement and reporting operations can be reduced, resulting in high resource overhead and power consumption waste.

[0079] In some embodiments, the CSI prediction result includes at least one of the following:

[0080] The validity period of the CSI reported at the target time;

[0081] Recommended measurement period for RS;

[0082] Recommended reporting period for CSI.

[0083] Here, the target time may be the time of the next CSI reporting, or may be the time of the currently completed CSI reporting. For example, the target time may be the time of the next CSI reporting determined based on at least one of the current time, the time of the last CSI reporting before the current time, and the CSI reporting period in the CSI prediction result.

[0084] In one embodiment, the effective duration of the CSI reported at the target time may be determined based on the CSI reported at the current time or the CSI reported last time before the current time. For example, the CSI at the target time may be predicted based on the CSI reported last time before the current time, and the effective duration of the CSI reported at the target time may be determined based on the predicted CSI at the target time.

[0085] In one embodiment, the effective duration of the CSI reported at the target time may also be determined by predicting the CSI at the target time based on multiple historically reported CSIs before the current time, and determining the effective duration of the CSI reported at the target time based on the predicted CSI at the target time.

[0086] like Figure 4 As shown, the embodiment of the present disclosure provides a CSI processing method, which is executed by a terminal, including:

[0087] S111: Based on the CSI prediction result, perform RS measurement and / or CSI reporting; the CSI prediction result includes at least one of the following: the effective duration of the CSI reported at the target time; the recommended measurement period of the RS; the recommended reporting period of the CSI;

[0088] S120: Stop at least part of the periodic measurement of the RS and / or at least part of the periodic reporting of the CSI within the valid duration of the CSI reported at the target time.

[0089] In the embodiments of the present disclosure, the effective duration can be used as a report quantity for CSI reporting, that is, reported by the terminal to the base station. During the effective duration after the CSI reporting is performed at the target time, the reported CSI can be considered to continuously represent the channel state, and there is no need to continue measuring RS and / or reporting CSI during the effective duration.

[0090] In one embodiment, during the valid duration of the CSI reported at the target moment, stopping at least part of the periodic measurement of the RS and / or at least part of the periodic reporting of the CSI may be as follows: during at least part of the valid duration of the CSI reported at the target moment, stopping at least part of the periodic measurement of the RS and / or at least part of the periodic reporting of the CSI.

[0091] In one embodiment, stopping at least part of the periodic measurement of RS and / or at least part of the periodic reporting of CSI may include: stopping the periodic measurement and / or periodic reporting at other times except the last RS measurement moment and / or CSI reporting moment within the effective duration.

[0092] Here, the terminal performs CSI reporting / RS measurement at the last CSI periodic reporting time and / or RS measurement time within the effective duration based on the target time.

[0093] In another embodiment, stopping at least part of the periodic measurement of RS and / or at least part of the periodic reporting of CSI may include: stopping all periodic CSI reporting and / or all periodic RS measurements within the effective duration based on the target moment, until the indication information indicating CSI reporting sent by the base station is received within the effective duration, and then performing CSI reporting and / or RS measurement.

[0094] Here, the indication information may be downlink control information (Downlink Control Information, DCI) including an aperiodic CSI reporting instruction.

[0095] In one embodiment, the method may further include:

[0096] Within the valid duration of the CSI reported at the target time, the CSI is reported based on the indication information of the base station.

[0097] In the embodiment of the present disclosure, the reporting and / or measurement indicated by the base station through the indication information is still performed within the effective duration. If the indication information of the base station is received, the RS is acquired based on the indication information, and the RS measurement and CSI reporting are performed.

[0098] Acquiring RS based on the indication information may be acquiring RS indicated by the indication information, or requesting the base station to acquire RS based on the indication information, etc. The indication information may be DCI sent by the base station, for example, the indication information may be used to instruct the terminal to report CSI.

[0099] In one embodiment, the method may further include: within the effective duration of the CSI reported at the target time, if indication information indicating that the base station should measure the RS is received, performing RS measurement.

[0100] In one embodiment, if the recommended measurement period of the RS is determined based on the effective duration, when the recommended measurement period of the RS is greater than or equal to the effective duration, then within a recommended measurement period or within a valid duration after reporting the CSI based on the target time, if indication information from the base station to measure the RS is received, the RS measurement is performed.

[0101] In one embodiment, if the recommended measurement period of the RS is determined based on the effective duration, when the recommended measurement period of the RS is less than the effective duration, then within a recommended measurement period after reporting the CSI based on the target time, if indication information from the base station is received to measure the RS, the RS measurement is performed.

[0102] In one embodiment, if the recommended reporting period of CSI is determined based on the effective duration, when the recommended reporting period of CSI is greater than or equal to the effective duration, then within a recommended reporting period or within a valid duration after reporting CSI based on the target time, if indication information from the base station to report CSI is received, CSI reporting is performed.

[0103] In one embodiment, if the recommended reporting period of CSI is determined based on the effective duration, when the recommended reporting period of CSI is less than the effective duration, then within a recommended reporting period after reporting CSI based on the target time, if indication information from the base station to report CSI is received, CSI reporting is performed.

[0104] In this way, periodic CSI reporting is shielded within the effective duration, but non-periodic CSI reporting based on base station instructions can still be responded to, thereby maintaining response to base station CSI acquisition instructions on the basis of reducing unnecessary periodic reporting, reducing the situation where the base station cannot obtain CSI when needed.

[0105] like Figure 5 As shown, the embodiment of the present disclosure provides a CSI processing method, which is executed by a terminal, including:

[0106] S111: Based on the CSI prediction result, perform RS measurement and / or CSI reporting; the CSI prediction result includes: the effective duration of the CSI reported at the target time;

[0107] S121: within at least part of the effective duration of the CSI reported at the target time, if indication information indicating aperiodic CSI reporting based on the effective duration is received from the base station, aperiodic CSI reporting and / or aperiodic RS measurement is performed.

[0108] Here, the indication information may be a DCI including an aperiodic CSI reporting instruction. If the aperiodic CSI reporting performed by receiving the indication information may be reporting of CSI, or reporting of CSI and CSI prediction results.

[0109] In the embodiment of the present disclosure, the indication information sent by the base station based on the effective duration may be the indication information sent by the base station at the sending time determined based on the effective duration. For example, the time interval between the sending time and the current time or the last CSI reporting time before the current time may be less than or equal to the effective duration.

[0110] In one embodiment, the indication information sent by the base station based on the effective duration may also be indication information sent by the base station indicating the CSI time to be reported determined based on the effective duration. For example, the time interval between the CSI time to be reported and the current time or the last CSI reporting time before the current time may be less than or equal to the effective duration.

[0111] Exemplarily, the base station reports CSI in the 1st slot and the CSI is valid for 10 slots, then the base station may send indication information in the 9th slot to instruct the terminal to perform a non-periodic CSI reporting.

[0112] In one embodiment, the periodic measurement of the RS may include continuous periodic measurement of the RS, such as periodic measurement of the RS performed continuously based on a measurement period configured by the base station, or the periodic measurement of the RS may also include semi-static measurement of the RS, such as semi-static measurement may start the RS periodic measurement based on a start instruction indicated by the base station, and stop the RS periodic measurement based on an end instruction indicated by the base station.

[0113] In one embodiment, the periodic reporting of CSI may include continuous periodic reporting of CSI, such as continuous periodic reporting of CSI based on a reporting period configured by the base station, or the periodic reporting of CSI may also include semi-static reporting of CSI, such as semi-static reporting may start periodic reporting of CSI based on a start instruction indicated by the base station, and stop periodic reporting of CSI based on an end instruction indicated by the base station.

[0114] In one embodiment, if the recommended measurement period of the RS is determined based on the effective duration, when the recommended measurement period of the RS is greater than or equal to the effective duration, the periodic measurement of the RS can be stopped within a recommended measurement period or within a valid duration after reporting CSI based on the target time.

[0115] In one embodiment, if the recommended measurement period of the RS is determined based on the effective duration, when the recommended measurement period of the RS is less than the effective duration, the periodic measurement of the RS may be stopped within a recommended measurement period after the CSI is reported based on the target time.

[0116] In one embodiment, if the recommended reporting period of CSI is determined based on the effective duration, when the recommended reporting period of CSI is greater than or equal to the effective duration, the periodic reporting of CSI is stopped within a recommended reporting period or within a effective duration after reporting CSI based on the target time.

[0117] In one embodiment, if the recommended reporting period of CSI is determined based on the effective duration, when the recommended reporting period of CSI is less than the effective duration, the periodic reporting of CSI may be stopped within a recommended reporting period after the CSI is reported based on the target time.

[0118] In this way, during the effective time period in which CSI can continuously characterize the channel state, stopping the periodic measurement of RS and / or the periodic reporting of CSI can fully utilize the effectiveness of CSI during the effective time period and reduce the power consumption caused by frequent periodic measurement and periodic reporting.

[0119] In some embodiments, the method may further include: sending the CSI prediction result to the base station.

[0120] Here, the terminal can be used to predict the CSI to obtain a CSI prediction result, and send the CSI prediction result to the base station. Among them, the CSI prediction result sent to the base station can be used to recommend a recommended period for the base station terminal to measure RS and / or report CSI next time. Among them, the recommended period value can be the number of specific time units, or it can be a period ID or period index value (index) indicated in the configuration information of the RS periodic measurement and / or CSI periodic reporting configured by RRC.

[0121] In one embodiment, sending the CSI prediction result to the base station may be reporting the CSI prediction result to the base station together with the CSI reporting. For example, after the CSI prediction result is predicted, the CSI prediction result is carried in the CSI reporting signaling in the next CSI reporting and reported to the base station.

[0122] For example, the content carried by the CSI reporting signaling corresponding to the CSI reporting may include: the CSI obtained by currently measuring the RS and the CSI prediction result.

[0123] In one embodiment, the CSI prediction result is sent to the base station, and the CSI prediction result can be reported through a medium access control control element (MAC-CE) in response to a request for reporting the CSI prediction result sent by the base station. For example, a recommended RS measurement period and / or CSI reporting period is sent through the MAC-CE.

[0124] In one embodiment, the CSI prediction result is sent to the base station, and the terminal may also send a request message (request) carrying the CSI prediction result to the base station. For example, the request message is used to recommend a measurement period and / or a reporting period to the base station.

[0125] In some embodiments, performing RS measurement and / or CSI reporting based on the CSI prediction result may include:

[0126] If a preset instruction returned by the base station in response to the CSI prediction result is received, RS measurement and / or CSI reporting is performed based on the CSI prediction result and / or the preset instruction.

[0127] In one embodiment, the preset instruction may be associated with the manner of sending the CSI prediction result to the base station. For example, when the CSI prediction result is reported to the base station via CSI reporting signaling, the received preset instruction may be resource configuration information indicating the terminal RS measurement behavior and / or CSI reporting behavior.

[0128] Exemplarily, the resource configuration information may carry the RS measurement period and / or CSI reporting period determined by the base station based on the CSI prediction results, wherein the measurement period and / or reporting period indicated by the base station may be the same as the recommended measurement period and / or recommended reporting period in the CSI prediction results sent by the terminal, or may be a measurement period and / or reporting period that the base station determines to be unreasonable and re-determined.

[0129] In one embodiment, when the terminal reports the prediction result through MAC-CE, the preset instruction may be an acknowledgement instruction (Acknowledge, ACK) of the base station for the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) containing the MAC-CE.

[0130] Here, the confirmation instruction can be sent to the terminal in an implicit manner, for example, using the same Hybrid Automatic Repeat request (HARQ) process number as that carrying the above PUSCH to initiate a new uplink scheduling. Among them, the flipping of the New Data Indicator (NDI) field indicates a new uplink scheduling.

[0131] In one embodiment, when the terminal reports the CSI prediction result through a request message, the preset instruction may be an acknowledgement instruction (Acknowledge, ACK) or a denial instruction (Non-Acknowledge, NACK) returned by the base station based on the request message. Among them, ACK may indicate that the base station determines that the terminal performs measurement and / or reporting based on the recommended measurement period and / or recommended reporting period in the CSI prediction result. NACK may indicate that the base station determines that the recommended measurement period and / or recommended reporting period in the CSI prediction result is unreasonable, and instructs the terminal to re-determine the recommended measurement period and / or recommended reporting period, etc.

[0132] In one embodiment, if a preset instruction returned by the base station in response to a CSI prediction result is received, RS measurement and / or CSI reporting is performed based on the CSI prediction result and / or the preset instruction, which may include: if a first type of preset instruction returned by the base station in response to the CSI prediction result is received, RS measurement and / or CSI reporting is performed based on the CSI prediction result, wherein the first type of preset instruction instructs the base station to verify the recommended measurement period and / or recommended reporting period in the CSI prediction result, such as ACK.

[0133] In one embodiment, the method may further include: if a second type of preset instruction returned by the base station in response to the CSI prediction result is received, redetermining the CSI prediction result and sending the redetermined CSI prediction result to the base station, wherein the second type of preset instruction indicates that the base station has failed to verify the recommended measurement period and / or recommended reporting period in the CSI prediction result, such as NACK.

[0134] In one embodiment, if a preset instruction is received from the base station in response to the CSI prediction result, RS measurement and / or CSI reporting is performed based on the CSI prediction result and / or the preset instruction, which may include: if indication information indicating non-periodic CSI reporting is received from the base station in response to the effective duration in the CSI prediction result, RS measurement and / or CSI reporting is performed based on the indication information.

[0135] For example, based on the aperiodic CSI reporting time indicated by the indication information, RS measurement and / or CSI reporting is performed.

[0136] In one embodiment, when the terminal reports the CSI prediction result through a request message, the preset instruction may also be feedback information carried in other signaling, such as ACK or NACK carried in aperiodic measurement indication information sent by the base station indicating the terminal to measure RS, and / or aperiodic reporting indication information indicating the terminal to report CSI, etc. In this way, by carrying feedback information through other signaling, the resource overhead generated by the base station sending ACK or NACK separately can be reduced, thereby further saving resource occupation.

[0137] In some embodiments, sending the CSI prediction result to the base station includes:

[0138] If there are available CSI reporting resources within the preset time window, the CSI and CSI prediction results are reported;

[0139] If there is no available CSI reporting resource within the preset time window, the CSI and the CSI prediction result are reported according to the instruction information of the base station.

[0140] Here, reporting CSI and CSI prediction results according to the indication information of the base station may be reporting CSI and CSI prediction results according to further indication information sent by the base station, for example, reporting CSI and CSI prediction results according to indication information sent by the base station indicating aperiodic CSI reporting.

[0141] In the embodiment of the present disclosure, the preset time window may be a fixed value, such as 3 slots or 5 slots, or the preset time window may also be determined according to the reporting period of the current CSI. For example, the preset time window may be less than or equal to the reporting period of the current CSI. For example, when the reporting period of the current CSI is 6 slots, the preset time window may be 1 / 2 of the current CSI, i.e., 3 slots.

[0142] In one embodiment, if there are no available CSI reporting resources within the preset time window, reporting the CSI and CSI prediction results according to the indication information of the base station may include: if there are no available CSI reporting resources for periodic CSI reporting within the preset time window, and indication information indicating non-periodic CSI reporting sent by the base station is received, generating a request message based on the CSI and CSI prediction results; reporting the request message to the base station.

[0143] In this way, based on the judgment of whether there is CSI to be reported within the preset time window, the low efficiency caused by waiting for the reporting time corresponding to the periodic reporting of CSI to report the prediction results can be reduced, so that the CSI prediction results can be reported quickly and efficiently at different times, thereby improving the efficiency of terminal measurement and / or reporting control.

[0144] In some embodiments, based on the CSI prediction result, performing RS measurement and / or CSI reporting includes:

[0145] Determine the starting time of RS measurement and / or CSI reporting based on a first time when a preset instruction is received and / or a second time when the CSI is last reported before the current time;

[0146] RS measurement is performed based on the recommended measurement period and the starting time, and / or CSI reporting is performed based on the recommended reporting period and the starting time.

[0147] In the embodiment of the present disclosure, the starting time of RS measurement may be the time of the next measurement after the current time, or may be the starting time of the measurement based on the recommended measurement period and / or recommended reporting period in the CSI prediction result.

[0148] The starting time of CSI reporting may be the time of next reporting after the current time, or may be the starting time of reporting based on the recommended reporting period in the CSI prediction result.

[0149] In one embodiment, determining the starting time of RS measurement and / or CSI reporting based on the first moment of receiving a preset instruction and / or the second moment of the last CSI reporting before the current moment may include: determining the starting time of CSI reporting based on the second moment of the last CSI reporting before the current moment and the recommended reporting period indicated by the CSI prediction result.

[0150] For example, the second time is the mth slot, and the new reporting period indicated by the CSI prediction result is x slots, then the starting time of CSI reporting is the m+xth slot.

[0151] In one embodiment, determining the starting time of RS measurement and / or CSI reporting based on the first moment of receiving a preset instruction and / or the second moment of the last CSI reporting before the current moment may include: determining the starting time of RS measurement and / or CSI reporting based on the first moment and / or the second moment and a predetermined time interval.

[0152] Exemplarily, the starting time of RS measurement and / or CSI reporting can be determined according to the first moment of receiving the preset instruction and the predetermined time interval. For example, the first moment is the nth slot. The predetermined time interval can be determined according to the resource configuration information sent by the base station or according to a predetermined protocol. For example, if the predetermined time interval is y slots, the starting time is the n+yth slot.

[0153] As another example, the start time of RS measurement and / or CSI reporting can be determined according to the second time of the last CSI reporting before the current time and the predetermined time interval. For example, if the second time is the mth slot and the predetermined time interval is y slots, the start time is the m+yth slot.

[0154] In one embodiment, determining the starting time of RS measurement and / or CSI reporting based on the first moment of receiving a preset instruction and / or the second moment of the last CSI reporting before the current moment may include: when the terminal reports the CSI prediction result to the base station through a request message, determining the starting time of RS measurement and / or CSI reporting based on the first moment of receiving an ACK sent by the base station and / or the second moment of the last CSI reporting before the current moment.

[0155] In one embodiment, determining the starting time of RS measurement and / or CSI reporting based on the first moment of receiving a preset instruction and / or the second moment of the last CSI reporting before the current moment may include: when the terminal reports the CSI prediction result to the base station through CSI reporting signaling, determining the starting time of RS measurement and / or CSI reporting based on the first moment of receiving the CSI resource configuration information sent by the base station and / or the second moment of the last CSI reporting before the current moment.

[0156] In this way, the corresponding start time for executing based on the new measurement period and / or reporting period can be determined more accurately based on the first time and / or the second time, thereby further improving the control accuracy of the CSI processing process.

[0157] In some embodiments, the method may further include:

[0158] Obtaining at least one to-be-predicted time of the to-be-predicted CSI;

[0159] The CSI prediction result corresponding to the time to be predicted is determined based on the CSI measured by the current RS.

[0160] In the embodiment of the present disclosure, the time to be predicted is the time after the current time when the CSI needs to be predicted. Determining the CSI prediction result corresponding to the time to be predicted based on the CSI measured by the current RS may include: determining the CSI prediction result corresponding to the time to be predicted based on the CSI measured by the current RS and at least one historical CSI measured by a historical RS.

[0161] Here, the CSI currently obtained by RS measurement may be the CSI obtained by RS measurement performed at the current moment, or may be the CSI obtained by the last RS measurement before the current moment.

[0162] In one embodiment, determining the CSI prediction result corresponding to the time to be predicted based on the CSI measured by the current RS may include: determining the CSI corresponding to the time to be predicted based on the CSI measured by the current RS; and determining the CSI prediction result corresponding to the time to be predicted based on the CSI corresponding to the time to be predicted.

[0163] For example, based on the CSI corresponding to the to-be-predicted time, the effective duration of the CSI corresponding to the to-be-predicted time, the recommended measurement period of the RS, and the recommended reporting period of the CSI are determined.

[0164] In some embodiments, the CSI prediction result may be reported to the base station via MAC-CE or uplink control information (UCI).

[0165] like Figure 6As shown, the embodiment of the present disclosure provides a CSI processing method, which is executed by a terminal, including:

[0166] S101: receiving an update instruction for a measurement period and / or a reporting period based on a CSI prediction result sent by a base station;

[0167] S110: Based on the CSI prediction result, perform RS measurement and / or CSI reporting.

[0168] In the disclosed embodiment, the update instruction may be used to instruct the terminal to update the measurement period of RS measurement and / or the reporting period of CSI reporting based on the CSI prediction result. The update instruction may be used only to indicate the triggering of the terminal update, or may carry the CSI prediction result predicted by the base station, for example, the update instruction carries the measurement period and / or reporting period predicted by the base station.

[0169] In one embodiment, the update instruction may be sent by the base station based on the CSI prediction result, for example, carrying a new measurement period and / or reporting period determined by the base station based on the CSI prediction result. Alternatively, the update instruction may also be an instruction for the base station to instruct the terminal to update the measurement period and / or reporting period based on the CSI prediction result.

[0170] In one embodiment, when the update instruction is only used to instruct to trigger the update of the terminal, the method may further include: predicting the CSI at the time to be predicted in response to the update instruction to obtain a CSI prediction result.

[0171] In one embodiment, when the update instruction carries the CSI prediction result predicted by the base station, step S110 may include: obtaining the RS measurement period and / or CSI reporting period indicated by the base station in the CSI prediction result carried by the update instruction; based on the RS measurement period and / or CSI reporting period, performing RS measurement and / or CSI reporting.

[0172] In some embodiments, the method may further include:

[0173] Data transmission is performed through time domain resources and / or frequency domain resources used for receiving RS and / or reporting CSI.

[0174] In an embodiment of the present disclosure, data transmission is performed using time domain resources and / or frequency domain resources for receiving RS and / or reporting CSI, which may include: performing data transmission using time domain resources and / or frequency domain resources for receiving RS and / or reporting CSI in the time interval between two adjacent CSI reporting times corresponding to a reporting period.

[0175] In one embodiment, data transmission is performed using time domain resources and / or frequency domain resources used to receive RS and / or report CSI, which may include: if the indication information indicating the start of non-periodic CSI reporting sent by the base station is not detected in the time interval between two adjacent CSI reporting times corresponding to a reporting period, data transmission is performed using the time domain resources and / or frequency domain resources used to receive RS and / or report CSI.

[0176] In one embodiment, data transmission is performed using time domain resources and / or frequency domain resources used to receive RS and / or report CSI, and may also include: performing data transmission using time domain resources and / or frequency domain resources used to receive RS and / or report CSI in the time interval between the reception times of two adjacent RSs corresponding to one or more reporting periods.

[0177] In this way, by stopping periodic CSI reporting in the reporting period, the time-frequency resources not occupied for CSI reporting or RS sending can be released for transmitting data to be transmitted between the terminal and the base station, thereby improving resource utilization efficiency and reducing additional resource overhead and power consumption waste.

[0178] like Figure 7 As shown, an embodiment of the present disclosure provides a CSI processing method, which is executed by a base station and includes:

[0179] S210: Acquire CSI prediction results; the CSI prediction results are used for RS measurement and / or CSI reporting.

[0180] In the disclosed embodiment, the base station obtains the CSI prediction result, which may be the CSI prediction result determined by the base station itself, or the CSI prediction result reported by the receiving terminal. The CSI prediction result is used to indicate the RS measurement and / or CSI reporting of the terminal, for example, the CSI prediction result may indicate the recommended RS measurement period and / or recommended CSI reporting period of the terminal.

[0181] In an embodiment, the CSI prediction result may include: CSI predicted for one or more target time moments or target time periods, and / or CSI time domain prediction conditions predicted for one or more target time moments or target time periods.

[0182] Among them, the target time or target time period can be determined by the base station itself or sent to the base station by the terminal, for example, the base station determines it according to the current time and / or a predetermined agreement between the terminal and the base station. The CSI predicted for one or more target time periods or target time periods can be predicted based on the currently measured CSI and / or the CSI measured in a preset time window before the current time. For example, the prediction can be based on a preset AI model, etc.

[0183] In one embodiment, the method may further include: determining a transmission period for sending RS to the terminal based on a recommended measurement period of RS indicated by the CSI prediction result and / or a recommended reporting period of CSI; and sending RS for RS measurement to the terminal based on the transmission period. For example, the RS transmission period of the base station may be consistent with the RS recommended measurement period of the terminal, or consistent with the CSI recommended reporting period of the terminal, etc.

[0184] In one embodiment, when the base station predicts and determines the CSI prediction result by itself, the method may further include: sending the CSI prediction result to the terminal. For example, it may include sending an update instruction of the RS measurement period and / or CSI reporting period based on the CSI prediction result to the terminal. The update instruction may carry the CSI prediction result.

[0185] In one embodiment, when the base station predicts and determines the CSI prediction result by itself, the method may further include: verifying the CSI prediction result; if the CSI prediction result meets the preset condition, sending the CSI prediction result to the terminal. For example, when the RS measurement period and / or CSI reporting period indicated by the CSI prediction result meets the preset condition for transmission between the terminal and the base station, the CSI prediction result is sent to the terminal.

[0186] In one embodiment, when receiving the CSI prediction result reported by the terminal, the method may further include: verifying the CSI prediction result; if the CSI prediction result meets the preset conditions, sending a preset instruction to the terminal to instruct to perform RS measurement and / or CSI reporting based on the CSI prediction result.

[0187] In this way, the base station configures the terminal to perform RS measurement and / or CSI reporting based on the CSI prediction result, so that it can better match the predicted change of CSI, and thus can flexibly adjust the RS measurement and CSI reporting behavior as the CSI prediction result changes, such as adjusting the period or frequency, etc. Therefore, the flexibility of the terminal to perform RS measurement and CSI reporting can be improved, and the high resource overhead and power consumption waste caused by low measurement and reporting control accuracy can be reduced.

[0188] In some embodiments, the CSI prediction result may include at least one of the following:

[0189] The effective duration of the CSI received at the target time;

[0190] Recommended measurement period for RS;

[0191] Recommended reporting period for CSI.

[0192] like Figure 8 As shown, an embodiment of the present disclosure provides a CSI processing method, which is executed by a base station and includes:

[0193] S211: receiving a CSI prediction result sent by a terminal; the CSI prediction result is used for RS measurement and / or CSI reporting;

[0194] S220: Determine whether the CSI prediction result meets the preset conditions for data transmission between the terminal and the base station;

[0195] S230: If the CSI prediction result meets the preset condition, send a preset instruction to perform RS measurement and / or CSI reporting based on the CSI prediction result.

[0196] In some embodiments, receiving a CSI prediction result sent by a terminal includes:

[0197] Send instruction information;

[0198] The receiving terminal reports the CSI and the CSI prediction result in response to the indication information.

[0199] In the embodiment of the present disclosure, the indication information may be indication information instructing the terminal to report CSI, for example, indication information instructing the terminal to perform aperiodic CSI reporting. The indication information may be DCI.

[0200] In one embodiment, the CSI prediction result reported by the receiving terminal in response to the indication information may be the CSI prediction result reported together when the receiving terminal reports the CSI in response to the indication information. For example, after the base station receives the CSI prediction result predicted by the terminal, the base station carries the CSI prediction result in the CSI reporting signaling of the next CSI reporting.

[0201] For example, the content carried by the CSI reporting signaling corresponding to the CSI reporting may include: the CSI obtained by currently measuring the RS and the CSI prediction result.

[0202] In one embodiment, the receiving terminal responds to the CSI prediction result reported by the indication information, and may also receive a request message (request) carrying the CSI prediction result reported by the receiving terminal in response to the indication information. For example, the request message is used to instruct the base station to verify the CSI prediction result to determine whether the measurement period and / or reporting period indicated by the CSI prediction result is reasonable.

[0203] In one embodiment, the preset instruction may be associated with the manner in which the base station receives the CSI prediction result sent by the terminal. For example, when the CSI prediction result sent by the terminal is received via CSI reporting signaling, the preset instruction may be resource configuration information indicating the terminal RS measurement behavior and / or CSI reporting behavior.

[0204] Exemplarily, the resource configuration information may carry the RS measurement period and / or CSI reporting period determined by the base station based on the CSI prediction results, wherein the measurement period and / or reporting period indicated by the base station may be the same as the recommended measurement period and / or recommended reporting period in the CSI prediction results sent by the terminal, or may be a measurement period and / or reporting period that the base station determines to be unreasonable and re-determined.

[0205] In one embodiment, when the CSI prediction result sent by the terminal is received through a request message, the preset instruction may be an acknowledgement instruction (Acknowledge, ACK) or a negative acknowledgement instruction (Non-Acknowledge, NACK) returned by the base station based on the request message.

[0206] Among them, ACK can instruct the base station to determine that the recommended measurement period and / or recommended reporting period in the CSI prediction result is reasonable, and instruct the terminal to perform measurement and / or reporting based on the recommended measurement period and / or recommended reporting period in the CSI prediction result.

[0207] NACK may indicate to the base station that the recommended measurement period and / or the recommended reporting period in the CSI prediction result is unreasonable, and instruct the terminal to re-determine the recommended measurement period and / or the recommended reporting period, etc.

[0208] In one embodiment, when the CSI prediction result sent by the terminal is received through a request message, the preset instruction may also be feedback information carried in other signaling, such as ACK or NACK carried in aperiodic measurement indication information sent by the base station indicating the terminal to measure RS, and / or aperiodic reporting indication information indicating the terminal to report CSI, etc. In this way, by carrying feedback information through other signaling, the resource overhead generated by the base station sending ACK or NACK separately can be reduced, thereby further saving resource occupation.

[0209] In some embodiments, step S210 may include:

[0210] Obtaining at least one to-be-predicted time of the to-be-predicted CSI;

[0211] The CSI prediction result corresponding to the time to be predicted is determined based on the currently received CSI.

[0212] In the embodiment of the present disclosure, the time to be predicted is the time after the current time when the CSI needs to be predicted. Determining the CSI prediction result corresponding to the time to be predicted based on the currently received CSI may include: determining the CSI prediction result corresponding to the time to be predicted based on the currently received CSI and at least one historical CSI received in the past.

[0213] Here, the currently received CSI may be the CSI obtained by RS measurement performed at the current moment, or may be the CSI obtained by the last RS measurement before the current moment.

[0214] In one embodiment, determining the CSI prediction result corresponding to the time to be predicted based on the currently received CSI may include: determining the CSI corresponding to the time to be predicted based on the currently received CSI; and determining the CSI prediction result corresponding to the time to be predicted based on the CSI corresponding to the time to be predicted.

[0215] For example, based on the CSI corresponding to the to-be-predicted time, the effective duration of the CSI corresponding to the to-be-predicted time, the RS measurement period, the CSI reporting period, etc. are determined.

[0216] In some embodiments, the CSI prediction result may be received via MAC-CE or uplink control information (UCI).

[0217] In some embodiments, the method further comprises:

[0218] Sending an update instruction for the measurement period and / or reporting period based on the CSI prediction result to the terminal.

[0219] In the embodiment of the present disclosure, the update instruction may be used to instruct the terminal to update the measurement period of RS measurement and / or the reporting period of CSI reporting based on the CSI prediction result. The update instruction may only be used to instruct the triggering terminal to determine a new measurement period and / or reporting period, or may carry the CSI prediction result predicted by the base station, for example, the update instruction carries the measurement period and / or reporting period predicted by the base station.

[0220] In some embodiments, the method may further include:

[0221] Determine a transmission period of the RS based on the recommended measurement period, and send the RS to the terminal based on the transmission period;

[0222] and / or,

[0223] The receiving terminal reports the CSI based on the recommended reporting period.

[0224] In the embodiment of the present disclosure, the transmission period of the RS may be the same as the recommended measurement period of the terminal RS, or the transmission period may be determined based on the RS measurement rule and the recommended measurement period of the RS. For example, if each transmitted RS is used for the terminal to perform one measurement, the transmission period of the RS may be equal to the recommended measurement period. If each transmitted RS is used for the terminal to perform two measurements, the transmission period of the RS may be equal to twice the recommended measurement period.

[0225] In some embodiments, the method may further include:

[0226] Data transmission is performed through time domain resources and / or frequency domain resources for transmitting RS and / or receiving CSI.

[0227] In an embodiment of the present disclosure, data transmission is performed using time domain resources and / or frequency domain resources used to send RS and / or receive CSI, which may include: performing data transmission using time domain resources and / or frequency domain resources used to send RS and / or receive CSI in the time interval between two adjacent CSI reception times corresponding to a CSI recommended reporting period.

[0228] In one embodiment, data transmission is performed using time domain resources and / or frequency domain resources used to send RS and / or receive CSI, which may include: in the time interval between two adjacent CSI reception times corresponding to a recommended reporting period of CSI, if indication information indicating the start of non-periodic CSI reporting is not issued, data transmission is performed using the time domain resources and / or frequency domain resources used to send RS and / or receive CSI.

[0229] In one embodiment, data transmission is performed using time domain resources and / or frequency domain resources used to send RS and / or receive CSI, and may also include: performing data transmission using time domain resources and / or frequency domain resources used to send RS and / or receive CSI in the time interval between the sending times of two adjacent RSs corresponding to one or more recommended reporting periods of CSI.

[0230] For example, when each RS is used for the terminal to perform multiple measurements, multiple CSI reporting periods may be included between the sending times of two adjacent RSs.

[0231] In this way, by stopping periodic CSI reporting in the reporting period, the time-frequency resources not occupied for CSI reporting or RS sending can be released for transmitting data to be transmitted between the terminal and the base station, thereby improving resource utilization efficiency and reducing additional resource overhead and power consumption waste.

[0232] The present disclosure provides a method for processing CSI, including:

[0233] 1. The UE reports new CSI reporting content to the base station (which may include at least one of the following):

[0234] 1) A set of CSI values

[0235] Based on the configuration of the base station, the UE reports the CSI result of the current measurement and the CSI prediction result predicted by the UE for a period of time in the future.

[0236] The predicted time corresponding to each CSI may be configured in advance by the base station or determined by the UE.

[0237] 2) CSI effective duration

[0238] The validity period of the CSI report, such as 1s, 2s or 5s.

[0239] During the effective time, the UE no longer performs periodic or semi-static CSI reporting and measurement: the base station can schedule data transmission of other users or schedule data transmission of the user using the configured RS sending resources and / or CSI reporting resources.

[0240] If the base station triggers aperiodic reporting within the effective duration, the UE still needs to perform aperiodic reporting.

[0241] 3) The recommended CSI reporting period and / or RS measurement period, and the predicted CSI change rate may also be reported.

[0242] 2. Specifically, the method may include:

[0243] 1) Based on UE triggering, the period value of the measurement period and / or reporting period is suggested by the UE, and the base station decides whether to adopt it.

[0244] 2) If the base station adopts it, the UE receives RS and / or reports CSI with the new measurement period and / or reporting period. The starting time of RS reception and / or CSI reporting is determined by one of the following methods:

[0245] After receiving the xth slot of Ack, assuming that ack is received in slot n, the UE receives CSI-RS and / or sends CSI in slot n+x;

[0246] like Fig. 9 As shown, the UE request message (request) is the request message sent by the UE to the base station, and the base station feedback information (gNodeB Acknowledge, gNB ACK) is the ACK returned by the base station (gNodeB, gNB) based on the request message. After x slots from the last RS reception and / or CSI reporting, assuming that the period before the UE sends the request message is y (sending CSI every y slots), the UE recommends a period of x, and the slot in which the UE last sent CSI is n, then the UE starts sending CSI at the n+xth slot as the starting time. The above method is also applicable to determining the starting time of RS reception.

[0247] like Fig.10 As shown, the embodiment of the present disclosure provides a CSI processing device, which is applied to a terminal, including:

[0248] The processing unit 10 is configured to perform RS measurement and / or CSI reporting based on the CSI prediction result.

[0249] In some embodiments, the CSI prediction result includes at least one of the following:

[0250] The validity period of the CSI reported at the target time;

[0251] Recommended measurement period for RS;

[0252] Recommended reporting period for CSI.

[0253] In some embodiments, the apparatus further comprises:

[0254] The stopping unit is configured to stop the periodic measurement of the RS and / or the periodic reporting of the CSI within the effective duration based on the target time.

[0255] In some embodiments, the apparatus further comprises:

[0256] The reporting unit is configured to report the CSI based on the indication information of the base station within the effective duration of the CSI reported at the target time.

[0257] In some embodiments, the apparatus further comprises:

[0258] The first sending unit is configured to send the CSI prediction result to the base station.

[0259] In some embodiments, the processing unit 10 is specifically configured to:

[0260] If a preset instruction returned by the base station in response to the CSI prediction result is received, RS measurement and / or CSI reporting is performed based on the CSI prediction result and / or the preset instruction.

[0261] In some embodiments, the first sending unit is specifically configured to:

[0262] If there are available CSI reporting resources within the preset time window, the CSI and CSI prediction results are reported;

[0263] If there is no available CSI reporting resource within the preset time window, the CSI and the CSI prediction result are reported according to the instruction information of the base station.

[0264] In some embodiments, the processing unit 10 is specifically configured to:

[0265] Determine the starting time of RS measurement and / or CSI reporting based on a first time when a preset instruction is received and / or a second time when the CSI is last reported before the current time;

[0266] RS measurement is performed based on the recommended measurement period and the starting time, and / or CSI reporting is performed based on the recommended reporting period and the starting time.

[0267] In some embodiments, the apparatus further comprises:

[0268] The prediction unit is configured to obtain at least one to-be-predicted time of the to-be-predicted CSI; and determine a CSI prediction result corresponding to the to-be-predicted time based on the CSI measured by the current RS.

[0269] In some embodiments, the CSI prediction result is reported to the base station via the medium access control control element MAC-CE or the uplink control information UCI.

[0270] In some embodiments, the apparatus further comprises:

[0271] The receiving unit is configured to receive an update instruction for the measurement period and / or the reporting period based on the CSI prediction result sent by the base station.

[0272] In some embodiments, the apparatus further comprises:

[0273] The first transmission unit is configured to perform data transmission by using time domain resources and / or frequency domain resources for receiving RS and / or reporting CSI.

[0274] like Fig.11 As shown, an embodiment of the present disclosure provides a CSI processing device, which is applied to a base station, including:

[0275] The acquisition unit 20 is configured to acquire a CSI prediction result; the CSI prediction result is used for RS measurement and / or CSI reporting.

[0276] In some embodiments, the CSI prediction result includes at least one of the following:

[0277] The effective duration of the CSI received at the target time;

[0278] Recommended measurement period for RS;

[0279] Recommended reporting period for CSI.

[0280] In some embodiments, the acquisition unit 20 is specifically configured to:

[0281] receiving a CSI prediction result sent by the terminal;

[0282] The device also includes:

[0283] A second sending unit is configured to determine whether the CSI prediction result meets a preset condition for data transmission between the terminal and the base station;

[0284] If the CSI prediction result meets the preset condition, a preset instruction is sent to instruct to perform RS measurement and / or CSI reporting based on the CSI prediction result.

[0285] In some embodiments, the acquisition unit 20 is specifically configured to:

[0286] Receive the CSI and CSI prediction results reported by the terminal;

[0287] Alternatively, a request message sent by the receiving terminal to instruct verification of the CSI prediction result.

[0288] In some embodiments, the acquisition unit 20 is specifically configured to:

[0289] Obtaining at least one to-be-predicted time of the to-be-predicted CSI;

[0290] The CSI prediction result corresponding to the time to be predicted is determined based on the currently received CSI.

[0291] In some embodiments, the apparatus further comprises:

[0292] The updating unit is configured to send an updating instruction for the measurement period and / or the reporting period based on the CSI prediction result to the terminal.

[0293] In some embodiments, the apparatus further comprises:

[0294] The interaction unit is configured to determine the RS transmission period based on the recommended measurement period, and send the RS to the terminal based on the transmission period; and / or receive the CSI reported by the terminal based on the recommended reporting period.

[0295] In some embodiments, the apparatus further comprises:

[0296] The second transmission unit is configured to perform data transmission by using time domain resources and / or frequency domain resources for sending RS and / or receiving CSI.

[0297] The present disclosure provides a communication device, including:

[0298] a memory for storing processor-executable instructions;

[0299] Processor, respectively memory connection;

[0300] The processor is configured to execute the CSI processing method provided by any of the aforementioned technical solutions.

[0301] The processor may include various types of storage media, which are non-transitory computer storage media that can continue to retain information stored thereon after the communication device loses power.

[0302] Here, the communication device includes: a terminal or a network element, and the network element can be any one of the first network element to the fourth network element mentioned above.

[0303] The processor may be connected to the memory via a bus or the like, and is used to read an executable program stored in the memory, for example, Figure 2 , Figures 4 to 8 At least one of the methods shown.

[0304] Fig.12 800 is a block diagram of a terminal 800 according to an exemplary embodiment. For example, the terminal 800 may be a mobile phone, a computer, a digital broadcast user device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0305] Reference Fig.12 The terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0306] The processing component 802 generally controls the entirety of the terminal 800, such as associated with display, phone calls, data communications, cameras, and recording. The processing component 802 may include one or more processors 820 to execute instructions to generate all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0307] The memory 804 is configured to store various types of data to support the terminal 800. Examples of such data include instructions for any application or method on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0308] Power component 806 provides power to various components of terminal 800. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0309] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal 800 is in a mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0310] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the terminal 800 is in a mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0311] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0312] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of the components, such as the display and keypad of the terminal 800, and the sensor assembly 814 can also detect the position change of the terminal 800 or a component of the terminal 800, the presence or absence of contact between the user and the terminal 800, the orientation or acceleration / deceleration of the terminal 800 and the temperature change of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0313] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0314] In an exemplary embodiment, the terminal 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-mentioned CSI processing method, for example, Figure 2 , Figures 4 to 8 At least one of the methods shown.

[0315] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the terminal 800 to generate the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0316] like Fig.13 As shown, an embodiment of the present disclosure shows a structure of a communication device 900. For example, the communication device 900 may be provided as a network side device. The communication device 900 may be the aforementioned base station.

[0317] Reference Fig.13 , the communication device 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932 for storing instructions executable by the processing component 922, such as an application. The application stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute instructions to perform any of the methods described above, such as the method performed by the aforementioned application in the base station, such as Figure 2 , Figures 4 to 8 At least one of the methods shown.

[0318] The communication device 900 may also include a power supply component 926 configured to perform power management of the communication device 900, a wired or wireless network interface 950 configured to connect the communication device 900 to a network, and an input / output (I / O) interface 958. The communication device 900 may be based on a system stored in the memory 932, such as Windows Server TM, MacOS X TM, Unix TM, Linux TM, FreeBSD TM or the like.

[0319] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0320] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for processing channel state information CSI, wherein: Executed by a terminal, the method includes: Perform reference signal RS measurement and / or CSI reporting.

2. The method according to claim 1, wherein: The performing of measuring a reference signal RS and / or reporting a CSI includes: Based on the CSI prediction result, perform reference signal RS measurement and / or CSI reporting; The CSI prediction result includes the effective duration of the CSI reported at the target time and at least one of the following: A recommended measurement period for the RS; The recommended reporting period of the CSI; The recommended measurement period of the RS and / or the recommended reporting period of the CSI are determined according to the effective duration; the effective duration is the duration during which the CSI reported at the target time can continuously indicate the channel state; All periodic measurements of the RS and / or all periodic reports of the CSI are stopped within the effective duration, and the RS measurements and / or the CSI reports are performed until indication information indicating reporting of the CSI is received from the base station within the effective duration.

3. The method according to claim 1, wherein: The method also includes: sending the CSI prediction result to a base station.

4. The method according to claim 3, wherein: The performing RS measurement and / or CSI reporting based on the CSI prediction result includes: If a preset instruction returned by the base station in response to the CSI prediction result is received, RS measurement and / or CSI reporting is performed based on the CSI prediction result and / or the preset instruction.

5. The method according to claim 3, wherein: The sending the CSI prediction result to the base station includes: If there are available CSI reporting resources within the preset time window, reporting the CSI and the CSI prediction result; If there is no available CSI reporting resource within the preset time window, the CSI and the CSI prediction result are reported according to the instruction information of the base station.

6. The method according to claim 4, wherein: The performing RS measurement and / or CSI reporting based on the CSI prediction result includes: Determine the starting time of RS measurement and / or CSI reporting based on the first time of receiving the preset instruction and / or the second time of the last CSI reporting before the current time; The RS is measured based on the recommended measurement period and the starting time, and / or the CSI is reported based on the recommended reporting period and the starting time.

7. The method according to claim 3, wherein: The method further comprises: Obtaining at least one to-be-predicted time of the to-be-predicted CSI; The CSI prediction result corresponding to the to-be-predicted time is determined based on the CSI measured by the current RS.

8. The method according to claim 3, wherein: The CSI prediction result is reported to the base station via a media access control control element MAC-CE or uplink control information UCI.

9. The method according to claim 2, wherein: The method further comprises: An update instruction for a measurement period and / or a reporting period based on a CSI prediction result is received and sent by a base station.

10. The method according to claim 2, wherein: The method further comprises: Data transmission is performed through time domain resources and / or frequency domain resources used for receiving RS and / or reporting CSI.

11. A method for processing CSI, wherein: Executed by a base station, the method includes: Obtain the results of reference signal RS measurement and / or CSI reporting.

12. The method according to claim 11, wherein: The obtaining of the result of the measurement of the reference signal RS and / or the reporting of the CSI includes: Acquire a CSI prediction result; the CSI prediction result is used for RS measurement and / or CSI reporting; The CSI prediction result includes the effective duration of the CSI received at the target time and at least one of the following: A recommended measurement period for the RS; The recommended reporting period of the CSI; The recommended measurement period of the RS and / or the recommended reporting period of the CSI are determined according to the effective duration; the effective duration is the duration during which the CSI reported at the target time can continuously indicate the channel state; The CSI prediction result is used to trigger the terminal to stop all periodic measurements of the RS and / or all periodic reporting of the CSI within the effective duration, until the terminal receives the indication information issued by the base station to report the CSI within the effective duration, and then performs the measurement of the RS and / or the reporting of the CSI.

13. The method according to claim 12, wherein: The obtaining of the CSI prediction result includes: receiving a CSI prediction result sent by the terminal; The method further comprises: Determining whether the CSI prediction result meets a preset condition for data transmission between the terminal and the base station; If the CSI prediction result meets the preset condition, a preset instruction is sent to instruct to perform RS measurement and / or CSI reporting based on the CSI prediction result.

14. The method according to claim 13, wherein: The CSI prediction result sent by the receiving terminal includes: Send instruction information; The receiving terminal reports the CSI and the CSI prediction result in response to the indication information.

15. The method according to claim 13, wherein: The obtaining of the CSI prediction result includes: Obtaining at least one to-be-predicted time of the to-be-predicted CSI; The CSI prediction result corresponding to the to-be-predicted time is determined based on the currently received CSI.

16. The method according to claim 15, wherein: The method further comprises: Sending an update instruction for the measurement period and / or reporting period based on the CSI prediction result to the terminal.

17. The method according to claim 12, wherein: The method further comprises: Determine a transmission period of the RS based on the recommended measurement period, and send the RS to the terminal based on the transmission period; and / or receive CSI reported by the terminal based on the recommended reporting period.

18. The method according to claim 17, wherein: The method further comprises: Data transmission is performed through time domain resources and / or frequency domain resources used to send the RS and / or receive the CSI.

19. A CSI processing device, wherein: Applied to a terminal, the device comprises: The processing unit is configured to perform reference signal RS measurement and / or CSI reporting.

20. A CSI processing device, wherein: Applied to a base station, the device comprises: The acquisition unit is configured to acquire the measurement result of the reference signal RS and / or the reporting result of the CSI.

21. A communication device comprising a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein: When the processor runs the executable program, the method provided in any one of claims 1 to 10 or 11 to 18 is performed.

22. A computer storage medium storing an executable program; after the executable program is executed by a processor, it can implement the method provided in any one of claims 1 to 10 or 11 to 18.

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