CN111263399B

CN111263399B - CSI reporting method and device

Info

Publication number: CN111263399B
Application number: CN201811460044.7A
Authority: CN
Inventors: 张永平; 金黄平; 李铁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2021-09-21
Anticipated expiration: 2038-11-30
Also published as: CN111263399A

Abstract

The application provides a CSI reporting method and a CSI reporting device, and relates to the technical field of communication. The method comprises the following steps: when the terminal has no effective measurement resource or the effective measurement resource is not effectively activated or receives a downlink signaling for indicating the deactivation of a service cell of the terminal, the terminal discards a CSI report under the condition that the CSI report reported when the terminal reports the CSI is not multiplexed with uplink information on an uplink channel, thereby saving transmission resources; under the condition that a CSI report reported by a terminal when the CSI is reported and uplink information are multiplexed in an uplink channel, the terminal reports the CSI report which is not updated or the CSI report of which the value exceeds the range when the CSI is reported, so that the problem of rate matching again caused by discarding the CSI report by the terminal is avoided, and the additional complexity added to the terminal is avoided.

Description

CSI reporting method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for reporting channel state information (CSI for short).

Background

At present, when a terminal reports a CSI report, if the latest CSI cannot be measured, the terminal does not report the CSI report. In this case, if the CSI report and the uplink data are multiplexed on the uplink channel, the complexity of the terminal increases.

Disclosure of Invention

The embodiment of the application provides a CSI reporting method and a CSI reporting device, and complexity of a terminal is prevented from being increased.

In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

in a first aspect, a CSI reporting method is provided, including: when the terminal does not meet any one or more of the following conditions 1 to 3, the terminal discards the CSI report under the condition that the CSI report reported when the terminal reports the CSI is not multiplexed with the uplink information on the uplink channel; when the terminal does not meet any one or more of the following conditions 1 to 3, under the condition that a CSI report reported when the terminal reports CSI and uplink information are multiplexed on an uplink channel, the terminal reports an unrefreshed CSI report or a CSI report with an over-range value when reporting the CSI; wherein, in case that the terminal is in the DRX mode, condition 1 is: the terminal has effective measurement resources; after the terminal is in the first configuration, condition 1 is: the terminal has effective measurement resources, or the terminal has effective measurement resources which are effectively activated; the condition 2 is: the measurement resource of the terminal is in the effective downlink time slot; the condition 3 is: the terminal does not receive downlink signaling for indicating the deactivation of a serving cell of the terminal; the measurement resource is a measurement resource corresponding to CSI report; the first configuration is the service cell activation of the terminal, or the first configuration is the activation of BWP change, or the first configuration is the CSI reporting activation; or the first configuration is a configuration of CSI reporting or a reconfiguration of CSI reporting. According to the method provided by the first aspect, when the terminal cannot measure the latest CSI report, and the CSI report and the uplink information are multiplexed in an uplink channel, the terminal sends the non-updated CSI report or the CSI report with the value exceeding the range to the network device, so that the problem of rate matching again caused by discarding of the CSI report by the terminal is avoided, additional complexity is avoided from being added to the terminal, and the terminal feeds back the non-updated CSI report without adding additional CSI calculation complexity. In the case that the CSI report is not multiplexed with the uplink information, the terminal may discard the CSI report, thereby saving transmission resources.

In one possible implementation, the uplink information is at least one of uplink data and HARQ result information.

In a second aspect, a CSI reporting method is provided, including: when the terminal does not meet any one or more of the following conditions 1 to 3, reporting an un-updated CSI report or a CSI report with an out-of-range value when the terminal reports the CSI; wherein, in case that the terminal is in the DRX mode, condition 1 is: the terminal has effective measurement resources; after the terminal is in the first configuration, condition 1 is: the terminal has effective measurement resources, or the terminal has effective measurement resources which are effectively activated; the condition 2 is: the measurement resource of the terminal is in the effective downlink time slot; the condition 3 is: the terminal does not receive downlink signaling for indicating the deactivation of a serving cell of the terminal; the measurement resource is a measurement resource corresponding to CSI report; the first configuration is the service cell activation of the terminal, or the first configuration is the activation of BWP change, or the first configuration is the CSI reporting activation; or the first configuration is a configuration of CSI reporting or a reconfiguration of CSI reporting. In the method provided by the second aspect, when the terminal cannot measure the latest CSI report, the terminal sends the CSI report that is not updated or whose value exceeds the range to the network device, so that the problem of rate matching again due to the fact that the terminal discards the CSI report when the CSI report and the uplink information are multiplexed on an uplink channel is avoided, additional complexity is avoided from being added to the terminal, and the terminal feeds back the CSI report that is not updated without adding additional complexity in CSI calculation.

In a possible implementation manner, the CSI report reported by the terminal when reporting CSI is multiplexed with the uplink information in the uplink channel.

In a third aspect, a CSI reporting method is provided, including: when a terminal is triggered to report N CSI simultaneously, reporting a CSI report corresponding to M CSI reports with an un-updated or value-out range and a CSI report corresponding to N-M updated CSI reports when the terminal carries out the CSI reports under the condition that the N CSI reports have M CSI reports, wherein the M CSI reports correspond to the condition that the terminal does not meet any one or more of the following conditions 1 to 3, and the N-M CSI reports are CSI reports except the M CSI reports in the N CSI reports; wherein N is an integer greater than 1, and M is an integer greater than 0 and less than or equal to N; wherein, in case that the terminal is in the DRX mode, condition 1 is: the terminal has effective measurement resources; after the terminal is in the first configuration, condition 1 is: the terminal has effective measurement resources, or the terminal has effective measurement resources which are effectively activated; the condition 2 is: the measurement resource of the terminal is in the effective downlink time slot; the condition 3 is: the terminal does not receive downlink signaling for indicating the deactivation of a serving cell of the terminal; the measurement resource is a measurement resource corresponding to CSI report; the first configuration is the service cell activation of the terminal, or the first configuration is the activation of BWP change, or the first configuration is the CSI reporting activation; or the first configuration is a configuration of CSI reporting or a reconfiguration of CSI reporting. According to the method provided by the third aspect, when the terminal cannot measure the latest CSI report and the terminal is triggered to report N CSI reports at the same time, the terminal sends the non-updated CSI report or the CSI report with the value exceeding the range to the network equipment, so that the problem that the terminal discards the CSI report and performs rate matching again is avoided, and extra complexity is avoided being added to the terminal.

In a fourth aspect, a CSI reporting method is provided, including: when a terminal has no effective measurement resource or the effective measurement resource is not effectively activated or receives a downlink signaling for indicating the deactivation of a service cell of the terminal, the terminal discards a CSI report under the condition that the CSI report reported when the terminal reports the CSI is not multiplexed with uplink information on an uplink channel; when a terminal has no effective measurement resource or the effective measurement resource is not effectively activated or receives a downlink signaling for indicating the deactivation of a service cell of the terminal, under the condition that a CSI report reported when the terminal reports CSI and uplink information are multiplexed on an uplink channel, the terminal reports an updated CSI report or a CSI report with an over-range value when reporting CSI; and the measurement resource is a measurement resource corresponding to the CSI report. In the method provided by the fourth aspect, when the terminal has no effective measurement resource or the effective measurement resource is not activated effectively or receives a downlink signaling for indicating the deactivation of the serving cell of the terminal, the terminal cannot measure to obtain the latest CSI report, and the terminal can send the latest CSI report or the CSI report with the value exceeding the range to the network device under the condition that the CSI report and the uplink information are multiplexed on the uplink channel, so that the problem of rate matching again caused by discarding the CSI report by the terminal is avoided, and the additional complexity added to the terminal is avoided. In the case that the CSI report is not multiplexed with the uplink information, the terminal may discard the CSI report, thereby saving transmission resources.

In a possible implementation manner, the uplink information is at least one of uplink data and HARQ result information.

In a fifth aspect, a CSI reporting method is provided, including: when a terminal has no effective measurement resource or the effective measurement resource is not activated effectively or receives a downlink signaling for indicating the deactivation of a service cell of the terminal, the terminal determines whether a CSI report and uplink information which are reported when CSI is reported are multiplexed on an uplink channel or not, and if so, the terminal reports an invalid CSI report when CSI is reported. In the method provided by the fifth aspect, when the terminal has no valid measurement resource or the valid measurement resource is not valid activated or receives a downlink signaling for indicating the deactivation of the serving cell of the terminal, the terminal cannot measure to obtain the latest CSI report, and the terminal can send the invalid CSI report to the network device under the condition that the CSI report and the uplink information are multiplexed on the uplink channel, so that the problem of rate matching again caused by discarding the CSI report by the terminal is avoided, and additional complexity is avoided from being added to the terminal.

In one possible implementation, the invalid CSI report is an un-updated CSI report or a CSI report whose value exceeds a range. According to the possible implementation mode, the terminal feeds back the CSI report which is not updated or the CSI report with the value exceeding the range, and extra CSI calculation complexity is not increased.

In one possible implementation, the method further includes: and if the terminal determines that the reported CSI report is not multiplexed with the uplink information in the uplink channel when the terminal performs CSI report, the terminal discards the CSI report. The possible implementation mode can save transmission resources.

In the method provided in the fourth aspect or the fifth aspect, when the terminal has no effective measurement resources, the terminal may be in the DRX mode or the terminal may be after the first configuration; when the effective measurement resource of the terminal is not effectively activated, the terminal may be after the first configuration; the terminal having no valid measurement resource may mean that the measurement resource of the terminal is not in a valid downlink timeslot. For the description of the first configuration, reference is made to the following, and the description is omitted here.

In a sixth aspect, a terminal is provided, which has the function of implementing any one of the methods provided in the first to third aspects. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above functions. The terminal may be in the form of a chip product.

In a seventh aspect, a terminal is provided, including: a communication unit and a processing unit; the processing unit is configured to discard the CSI report when the terminal has no effective measurement resource or the effective measurement resource is not effectively activated or receives a downlink signaling for indicating deactivation of a serving cell of the terminal and the CSI report reported by the terminal is not multiplexed with uplink information on an uplink channel when the terminal performs CSI report; the processing unit is further configured to report, to a network device through the communication unit, an un-updated CSI report or a CSI report whose value exceeds a range, when the terminal has no effective measurement resource or an effective measurement resource is not effectively activated or receives a downlink signaling for indicating deactivation of a serving cell of the terminal and the CSI report reported by the terminal when performing CSI reporting is multiplexed with the uplink information on the uplink channel; and the measurement resource is a measurement resource corresponding to the CSI report.

In an eighth aspect, there is provided a terminal comprising: a communication unit and a processing unit; the processing unit is configured to determine whether a CSI report and uplink information that are reported when performing CSI reporting are multiplexed on an uplink channel or not when the terminal has no valid measurement resource or the valid measurement resource is not activated effectively or receives a downlink signaling that indicates that a serving cell of the terminal is deactivated, and if so, report an invalid CSI report to the network device through the communication unit.

In one possible implementation, the invalid CSI report is an un-updated CSI report or a CSI report whose value exceeds a range.

In a possible implementation manner, if the terminal determines that the CSI report reported when performing CSI reporting is not multiplexed with the uplink information in the uplink channel, the processing unit is further configured to discard the CSI report.

In the terminal provided in the seventh or eighth aspect, when the terminal has no effective measurement resource, the terminal may be in the DRX mode or the terminal may be after the first configuration; when the effective measurement resource of the terminal is not effectively activated, the terminal may be after the first configuration; the terminal having no valid measurement resource may mean that the measurement resource of the terminal is not in a valid downlink timeslot. For the description of the first configuration, reference is made to the following, and the description is omitted here.

In a ninth aspect, there is provided a terminal comprising: a communication interface and a processor, optionally a memory; the memory is used for storing computer-executable instructions, the processor, the memory and the communication interface are connected through a communication bus, and the processor executes the computer-executable instructions stored in the memory, so that the terminal can implement any one of the methods provided by the first aspect to the fifth aspect. The terminal may be in the form of a chip product.

In a tenth aspect, there is provided a chip comprising: a processor and a communication interface; the processor executes the computer-executable instructions to implement any one of the methods provided by any one of the first to fifth aspects. The processor may be a logic circuit, and the communication interface may include an input interface and an output interface. The chip may be present in the terminal.

In an eleventh aspect, there is provided a computer-readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the first aspect or any one of the methods provided in any one of the first to fifth aspects.

In a twelfth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform any one of the methods provided in any one of the first to fifth aspects.

For technical effects brought by any one of the design manners in the sixth aspect to the twelfth aspect, reference may be made to the technical effects brought by the corresponding design manners in the first aspect to the fifth aspect, and details are not repeated here.

It should be noted that, all possible implementation manners of any one of the above aspects may be combined without departing from the scope of the claims.

Drawings

Fig. 1 is a schematic diagram of locations of CSI reporting and measurement resources according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a DRX cycle according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of CSI-RS transmission and CSI feedback provided in an embodiment of the present application;

fig. 4 to fig. 6 are flow charts of methods for reporting CSI according to embodiments of the present application;

fig. 7 is a schematic diagram of a location of a measurement resource according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating an onset delay of carrier activation according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating an onset delay of CSI configuration/reconfiguration according to an embodiment of the present disclosure;

fig. 10 is a schematic diagram illustrating the time delay of the onset of BWP change activation according to an embodiment of the present application;

fig. 11 is a schematic diagram illustrating an onset delay of semi-persistent CSI activation according to an embodiment of the present application;

fig. 12 and fig. 13 are flowcharts of methods for reporting CSI according to embodiments of the present application, respectively;

fig. 14 is a schematic composition diagram of a terminal according to an embodiment of the present application;

fig. 15 is a schematic hardware structure diagram of a terminal according to an embodiment of the present disclosure;

fig. 16 is a schematic hardware structure diagram of another terminal according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Where in the description of the present application, "/" indicates an OR meaning, for example, A/B may indicate A or B, unless otherwise indicated. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified.

The technical scheme of the embodiment of the application can be applied to various communication systems. For example: orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. The term "system" may be used interchangeably with "network". The technical scheme of the embodiment of the application can be specifically applied to a fifth generation (5th-generation, 5G for short) communication system and a New Radio (NR) system. The 5G communication system includes a non-independent Network (NSA) 5G communication system and/or an independent network (SA) 5G communication system. In addition, the communication system can also be applied to future-oriented communication technologies, and the technical solutions provided by the embodiments of the present application are all applied. The above-described communication system to which the present application is applied is merely an example, and the communication system to which the present application is applied is not limited thereto.

The network element related to the embodiment of the application comprises network equipment and a terminal.

The network device may be a device deployed in a Radio Access Network (RAN) to provide a wireless communication function for a terminal, for example, a base station (node B, NB for short). The network devices may include various forms of macro base stations, micro base stations (also referred to as small stations), relay stations, access points, etc., and may also include various forms of control nodes, such as network controllers. The control node may be connected to a plurality of base stations, and configure resources for a plurality of terminals under the coverage of the plurality of base stations. In systems using different radio access technologies, names of devices having functions of base stations may be different, for example, in a Long Term Evolution (LTE) system, a base station is called an evolved node B (eNB) or an e-NodeB, and in a 5G system or an NR system, a base station is called a gNB.

A terminal in this embodiment may also be referred to as User Equipment (UE), terminal equipment, access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. The terminal may be a Station (ST) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with a wireless communication function, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, or a wearable device (also referred to as a wearable smart device). The terminal may also be a terminal in a next generation communication system, for example, a terminal in a 5G system or a terminal in a Public Land Mobile Network (PLMN) for future evolution, a terminal in an NR system, and the like.

In order to make the method provided by the embodiments of the present application clearer, a brief description is provided below of some concepts related to the embodiments of the present application.

(1) Carrier and Bandwidth part (BWP for short)

NR supports Carrier Aggregation (CA) technology, and a network device may configure a terminal with multiple carriers, where one carrier is defined as a primary carrier and the other carriers are secondary carriers. The primary carrier is always active. The secondary carrier may be activated or deactivated as needed by the network device. The network device may activate or deactivate any carrier other than the primary carrier through media access control element (MAC CE) signaling.

Each carrier may define a plurality of BWPs, and only one active BWP among the plurality of BWPs on each carrier may be defined, and when necessary, the network device may transform the active BWP through Downlink Control Information (DCI), so as to change the active BWP.

It should be noted that the carriers in the embodiments of the present application may also represent cells, and different descriptions may be used in different places hereinafter, but all the representations are the same.

(2) Channel state information reference signal (CSI-RS) resources and channel state information interference measurement (CSI-IM) resources

Both the CSI-RS resource and the CSI-IM resource are measurement resources. The CSI-RS resource can be used for channel measurement and interference measurement, and the CSI-IM resource can be used for interference measurement.

The CSI-RS resources/CSI-IM resources are configured in BWPs, and the network device may configure one or more CSI-RS resources/CSI-IM resources for each BWP. In configuring each CSI-RS resource/CSI-IM resource, the network device may configure a time domain action (e.g., reception) for each CSI-RS resource/CSI-IM resource, where the time domain action may be periodic, semi-persistent, or aperiodic. The time-domain action as a semi-persistent CSI-RS resource may be referred to as a semi-persistent CSI-RS (SP CSI-RS for short) resource, and the time-domain action as a semi-persistent CSI-IM resource may be referred to as a semi-persistent CSI-IM (SP CSI-IM for short) resource. The CSI-RS resource/CSI-IM resource in the embodiment of the application refers to a time-frequency resource for bearing CSI-RS/CSI-IM.

(3) CSI reporting (CSI reporting) and CSI reporting (CSI reporting)

The terminal may perform CSI reporting after performing CSI measurement according to the CSI-RS resource/CSI-IM resource, where the CSI reporting may be achieved by sending a CSI report to the network device, and the CSI report may include a CSI measurement result of the terminal.

The network equipment configures corresponding CSI-RS resources/CSI-IM resources for each CSI report through high-level signaling, and the terminal can perform CSI measurement according to the CSI-RS resources/CSI-IM resources corresponding to one CSI report and perform the CSI report according to a CSI measurement result.

Before the terminal performs the CSI measurement and the CSI report, the network device may send the configuration parameters for the CSI report to the terminal, and the terminal may perform the CSI measurement and the CSI report according to the configuration parameters for the CSI report. For example, the CSI reporting configuration parameter may include a CSI reporting type, which may be periodic, semi-persistent, or aperiodic. The periodic CSI reporting can only carry out measurement based on periodic CSI-RS resources/CSI-IM resources; semi-persistent CSI reporting may be based on periodic or semi-persistent CSI-RS resources/CSI-IM resources for measurements; while aperiodic CSI reporting may be measured based on periodic or semi-persistent or aperiodic CSI-RS/CSI-IM resources. The semi-persistent CSI activation in the following embodiments of the present application refers to activating a CSI report whose CSI reporting type is semi-persistent.

The CSI reports are configured according to carriers, each carrier may correspond to one or more CSI reports, and the configuration parameters for CSI reporting may further include information indicating which carrier the CSI report corresponds to.

The configuration parameters for CSI reporting refer to parameters used for the terminal to perform CSI reporting, and may also be referred to as CSI report configuration (CSI report setting).

When the terminal is configured to perform semi-continuous CSI measurement and CSI reporting, the terminal starts to perform CSI measurement and CSI reporting after receiving one downlink trigger signaling sent by the network equipment, and ends CSI measurement and CSI reporting after receiving another downlink trigger signaling, and the terminal performs periodic CSI measurement and CSI reporting between the sending moments of the two downlink trigger signaling.

When a terminal is configured to perform aperiodic CSI measurement and CSI reporting, a network device first configures configuration parameters for reporting multiple CSI for the terminal in a semi-static manner through a Radio Resource Control (RRC) signaling, triggers one or more CSI reports through DCI, and performs CSI measurement according to the configuration parameters reported by the CSI and reports the CSI reports using a Physical Uplink Shared Channel (PUSCH). Different from semi-continuous CSI measurement and CSI reporting, the aperiodic CSI measurement and CSI reporting do not need to be deactivated after DCI triggering, and only one CSI measurement and CSI reporting is performed. Triggering CSI reporting may also be described as triggering CSI reporting, and different places in this document may have different descriptions, but the descriptions are the same meaning.

(4) CSI reference resource (CSI reference resource)

Since the terminal needs a certain time to perform CSI measurement, for this reason, a CSI reference resource is defined in NR. For a CSI report, the CSI reference resource reported by the CSI is the latest resource that can be used by the terminal in the measurement resource corresponding to the CSI report. The time domain position of a CSI reference resource reported by a CSI is in the first slots (slots) of the slot (slot) where the CSI report is located. Aiming at one-time CSI reporting, the terminal adopts the CSI-RS resource/CSI-IM resource which is the time domain position of the CSI reference resource reported by the CSI or is the CSI-RS resource/CSI-IM resource before the CSI reference resource is reported when the terminal carries out the CSI measurement, thereby ensuring that the terminal has enough time to calculate the CSI.

For example, as shown in fig. 1, a CSI reporting position is at slot x3, and for CSI reporting performed on slot x3, a time domain position of a CSI reference resource for CSI reporting should be position a in fig. 1. The terminal receives one CSI-RS/CSI-IM at slot x1 and slot x2 respectively. The slot x1 is located before a, the slot x2 is located after a, and there is not enough time between slot x2 and slot x3 for the terminal to calculate the CSI, so the terminal should calculate the CSI reported in slot x3 by using the CSI-RS/CSI-IM received in slot x1, that is, the terminal should use a measurement resource not later than a, so as to ensure that the CSI can be reported in slot x 3.

If the time domain position of the uplink resource occupied by one CSI report is an uplink slot n '(i.e. a slot with an index of n'), the time domain position of the CSI reference resource reported by the CSI is n-n_{CSI_ref}Here, the

u_ULAnd u_DLThe values of the two are respectively determined by the interval configuration parameters of the uplink and downlink subcarriers. For example, u is the value of 15kHz downstream subcarrier spacing_DL0; the downlink subcarrier spacing is 30kHz, u_DL1 is ═ 1; the downlink subcarrier spacing is 60kHz, u_DL2; the downlink subcarrier spacing is 120kHz, u_DL3. And n is_{CSI_ref}Related to the CSI reporting type, for example, for periodic or semi-persistent CSI reporting, if the number of CSI-RSs bound for channel measurement in the CSI reporting is 1, then n_{CSI_ref}Is greater than or equal to

And, n is the smallest integer of_{CSI_ref}Is required to make the time domain position n-n_{CSI_ref}The slot of (a) is an effective downlink slot; if the number of the CSI-RSs bound for CSI reporting and used for channel measurement is more than 1, then n_{CSI_ref}Is greater than or equal to

And, n is the smallest integer of_{CSI_ref}The value of (A) is such that n-n_{CSI_ref}Is an effective downlink slot.

(5) Discontinuous Reception (DRX) mode

The DRX mode is a mode of receiving a signal of the terminal, and in order to reduce power consumption of the terminal, the terminal may decide whether to receive a signal in the DRX mode according to a configuration of a network device. When the terminal receives signals in a DRX mode, in one DRX period, the terminal can receive CSI-RS/CSI-IM and carry out CSI measurement in active time (active time), and outside the active time, the terminal enters sleep time, and in the sleep time, the terminal does not receive CSI-RS/CSI-IM and does not carry out CSI measurement. For example, referring to fig. 2, in both DRX cycle 1 and DRX cycle 2, the terminal can only perform CSI measurement during the active time.

The method provided by the embodiment of the application can be applied to a multiple-input multiple-output (MIMO) scenario, and in the MIMO scenario, in order to improve the performance of a downlink (i.e., a link from a network device to a terminal), a closed-loop MIMO operating mode can be adopted, as shown in fig. 3, a network device can send CSI-RS to the terminal, the terminal performs CSI measurement according to the CSI-RS to obtain CSI, and then feeds the CSI back to the network device, and the network device sends data according to the CSI fed back by the terminal, thereby improving the spectrum efficiency.

At present, a slot where a terminal reports CSI is located, and if the latest CSI cannot be measured, the terminal does not report CSI in the slot. In this case, when the CSI report is multiplexed with uplink data in the uplink channel, the complexity of the terminal increases. The reason is that the uplink resources used by the terminal for CSI reporting and uplink data transmission are allocated by the network device, and when the network device performs resource allocation, the uplink resources are determined according to the quality of the uplink channel, the load size of CSI reporting (the load size is related to the reporting content, which is also configured by the network device for the terminal) and the data volume of the uplink data.

In the embodiment of the present invention, the time unit is described as a slot, but this is merely an example, and in a specific implementation, the time unit may also be a subframe (subframe), a symbol (symbol), or the like.

In order to solve the problem, an embodiment of the present application provides a method for reporting CSI, as shown in fig. 4, including:

when the terminal does not satisfy any one or more of the following conditions 1 to 3, if the CSI report reported by the terminal is not multiplexed with uplink information in an uplink channel (i.e., no uplink information is transmitted while feeding back the CSI report), step 401 is performed, and if the CSI report reported by the terminal is multiplexed with uplink information in an uplink channel (i.e., uplink information is transmitted while feeding back the CSI report), step 402 is performed.

401. The terminal discards the CSI report.

402. And when the terminal reports the CSI, reporting the non-updated CSI report or the CSI report with the value exceeding the range.

When implemented in detail, step 402 may include: and when the terminal reports the CSI, reporting the non-updated CSI report or the CSI report with the value exceeding the range to the network equipment.

Before performing step 401 or 402, the terminal may further include: 11) the terminal determines whether the CSI report is multiplexed with uplink information on an uplink channel, if so, performs step 402, and if not, performs step 401.

In step 401, when the terminal does not satisfy any one or more of the following conditions 1 to 3 during specific implementation, further, the terminal may execute step 401 when the CSI report reported by the terminal is not multiplexed with uplink information in an uplink channel and the terminal is not simultaneously triggered to report multiple CSI reports including CSI reports in 401 or 402.

Before performing step 11), the terminal may further include: 21) the terminal determines whether or not it satisfies any one or more of the following conditions 1 to 3. If yes, go to step 11), if no, go not to step 11). Of course, the present application may also perform step 21) after step 11), which is not limited in the present application.

In the method shown in fig. 4, in a case where a CSI report is not multiplexed with uplink information in an uplink channel, discarding the CSI report by a terminal is only one implementation manner in this case, and in a specific implementation, the terminal may also report any CSI report, for example, an updated CSI report, a CSI report whose value exceeds a range, and the like. The non-updated CSI report may be any CSI report previously sent by the terminal. In one possible implementation, the terminal may obtain the non-updated CSI report from the buffer. The CSI report with an out-of-range value refers to a CSI report with an out-of-range value of some parameter in the CSI report, for example, if the CSI includes a Channel Quality Indicator (CQI), the value of the CQI included in the CSI report reported by the terminal may be 51 when the value range of the CQI is 0 to 50. The uplink channel may specifically be a PUSCH.

The embodiment of the present application further provides a method for reporting CSI, including: when the terminal does not satisfy any one or more of the following conditions 1 to 3, the following step 501 is performed.

501. And when the terminal reports the CSI, reporting the non-updated CSI report or the CSI report with the value exceeding the range.

When implemented specifically, step 501 may include: and when the terminal reports the CSI, reporting the non-updated CSI report or the CSI report with the value exceeding the range to the network equipment.

In step 501, in a specific implementation, the terminal may also report any other CSI report except the non-updated CSI report and the CSI report whose value exceeds the range to the network device when performing CSI report.

Before performing step 501, as shown in fig. 5, the terminal may further include: 500. the terminal determines whether or not it does not satisfy any one or more of the following conditions 1 to 3. If yes, go to step 501, otherwise, go to step 501.

In the method shown in fig. 5, optionally, the CSI report reported by the terminal when performing CSI report is multiplexed with the uplink information in the uplink channel.

In the methods shown in fig. 4 and 5, in a case where a CSI report and uplink information are multiplexed on an uplink channel, it is only one implementation manner in this case that a terminal sends an un-updated CSI report or a CSI report whose value exceeds a range to a network device, and in a specific implementation, the terminal may report any other CSI report except the un-updated CSI report and the CSI report whose value exceeds the range to the network device.

The embodiment of the present application further provides a method for reporting CSI, including:

when the terminal is triggered to report N CSI simultaneously, the terminal performs step 601 under the condition that M CSI reports exist in the N CSI reports.

601. And when the terminal reports the CSI, reporting the CSI reports corresponding to the M CSI reports which are not updated or have values exceeding the range, and reporting the CSI reports corresponding to the N-M updated CSI reports.

The M CSI reports correspond to the situation that the terminal does not meet any one or more of the following conditions 1 to 3, and the N-M CSI reports are CSI reports except the M CSI reports in the N CSI reports. N is an integer greater than 1, and M is an integer greater than 0 and less than or equal to N.

When implemented specifically, step 601 may include: and when the terminal reports the CSI, reporting the CSI reports corresponding to the M CSI reports which are not updated or have the values exceeding the range and reporting the CSI reports corresponding to the N-M updated CSI reports to the network equipment.

Before performing step 601, as shown in fig. 6, the terminal may further include: 600. and the terminal determines whether the M CSI reports exist. If yes, go to step 601, otherwise, go to step 601.

In step 600, in a specific implementation, the terminal may determine, for each CSI report of the N CSI reports, whether or not it does not satisfy any one or more of the following conditions 1 to 3, so as to determine the M CSI reports.

In the method shown in fig. 6, it should be noted that CSI reports corresponding to multiple CSI reports triggered by the network device at the same time are multiplexed on an uplink channel.

In the method shown in fig. 6, when the terminal is triggered to report N CSI simultaneously and there are M CSI reports in the N CSI reports, it is only one implementation manner in this case that the terminal reports an un-updated CSI report or a CSI report whose value exceeds the range for the M CSI reports, and the terminal may also report any CSI report other than the un-updated CSI report and the CSI report whose value exceeds the range during specific implementation.

In this embodiment, the format of the CSI report whose value exceeds the range may be normal, that is, under the condition that the terminal reports the CSI report whose value exceeds the range, the terminal may report the CSI report whose format is normal but whose value exceeds the range.

In the above-described methods illustrated in fig. 4-6:

in case that the terminal is in the DRX mode, condition 1 is: the terminal has valid measurement resources.

After the terminal is in the first configuration, condition 1 is: the terminal has valid measurement resources, or the terminal has valid measurement resources and the valid measurement resources are activated effectively.

The condition 2 is: the measurement resource of the terminal is in the effective downlink time slot.

The condition 3 is: the terminal does not receive downlink signaling indicating deactivation of the serving cell of the terminal.

The measurement resource is a measurement resource corresponding to CSI report; the measurement resources may include measurement resources for channel measurements and/or measurement resources for interference measurements. The measurement resource for channel measurement may be a CSI-RS resource, and the measurement resource for interference measurement may be a CSI-RS resource and/or a CSI-IM resource.

The first configuration is a serving cell activation of the terminal, or the first configuration is a BWP change activation, or the first configuration is a CSI reporting activation; or the first configuration is a configuration of CSI reporting or a reconfiguration of CSI reporting.

The configuration for reporting the CSI specifically refers to configuration of configuration parameters for reporting the CSI. The reconfiguration reported by the CSI specifically refers to reconfiguration of configuration parameters reported by the CSI.

Optionally, the uplink information is at least one of uplink data and hybrid automatic repeat request (HARQ) result information (e.g., HARQ-ACK information, HARQ-NACK information).

Before step 402, step 501, or step 601, the terminal may receive the configuration parameters reported by the CSI configured by the network device, and report the CSI report according to the configuration parameters reported by the CSI. The network device may specifically configure the configuration parameters reported by the CSI for the terminal through a higher layer signaling (e.g., RRC signaling).

According to the method provided by the embodiment of the application, when the terminal does not meet any one or more of the following conditions 1 to 3, the terminal cannot measure the latest CSI report, and under the condition that the CSI report and uplink information are multiplexed on an uplink channel or the terminal is simultaneously triggered to report N CSI reports, the terminal sends the non-updated CSI report or the CSI report with the value exceeding the range to network equipment, so that the problem of rate matching again caused by discarding of the CSI report by the terminal is avoided, extra complexity is avoided being added to the terminal, and extra CSI calculation complexity cannot be added when the terminal feeds back the non-updated CSI report. In the case that the CSI report is not multiplexed with the uplink information, the terminal may discard the CSI report, thereby saving transmission resources.

In order to make the examples of the present application clearer, the above conditions 1 to 3 are described below.

Condition 1:

in a scenario (denoted as scenario 1) in which the terminal is in the DRX mode, condition 1 is: the terminal has valid measurement resources.

In scenario 1, condition 1 may specifically be: at least one CSI-RS transmission moment for channel measurement and one CSI-RS and/or CSI-IM moment for interference measurement are contained in the DRX activation time no later than the CSI reference resource.

In scenario 1, the measurement resource at the time domain position within the DRX activation time and not later than the CSI reference resource is an effective measurement resource of the terminal.

The "no later than CSI reference resource" specifically means "a time domain position no later than CSI reference resource". The "at least one CSI-RS transmission time instant for channel measurement" may also be described as "at least one time domain resource (e.g., slot) carrying CSI-RS for channel measurement". The "time instant of one CSI-RS and/or CSI-IM for interference measurement" may also be described as "one time domain resource (e.g., slot) carrying the CSI-RS and/or CSI-IM for interference measurement". "a time at which the CSI reference resource contains at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement" may be described as "a time from the CSI reference resource (time domain dimension) onward (including the time domain position of the CSI reference resource) containing at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement", and may also be described as "at least one CSI-RS for channel measurement and one CSI-RS and/or CSI-IM for interference measurement are received at a time domain position no later than the CSI reference resource". The description herein is equally applicable to condition 1 in scenario 2 (scenario of the terminal after the first configuration) hereinafter, and will not be described in detail hereinafter.

Condition 1 under scenario 1 can also be described as: and in the DRX activation time, the terminal receives at least one CSI-RS for channel measurement and one CSI-RS and/or CSI-IM for interference measurement at a time domain position which is not later than the CSI reference resource.

According to the above embodiments, when the terminal receives information in the DRX mode, the terminal may receive the CSI-RS and/or the CSI-IM only during the DRX active time and perform CSI measurement. Moreover, the terminal can only use the measurement resource no later than the time domain position of the CSI reference resource to perform CSI measurement, and it can be understood that the terminal can obtain the latest CSI report by measurement when the terminal satisfies the condition 1, thereby performing CSI reporting. When the terminal does not meet the condition 1, the terminal cannot report the latest CSI report, and at the moment, under the condition that the CSI report is multiplexed with uplink information or the network equipment simultaneously triggers a plurality of CSI reports, the terminal can report any CSI reports, so that the introduction of extra complexity caused by the fact that the terminal performs rate matching again is avoided. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

Condition 1 in scenario 1 is exemplarily illustrated below by taking an example in which a terminal is triggered N (N is an integer greater than 1) CSI reports at the same time.

For example, as shown in fig. 7, the terminal receives downlink signaling 1 on slot0, where downlink signaling 1 simultaneously triggers 2 CSI reports (denoted as CSI report 1 and CSI report 2) to be reported on slot 10.

Time-frequency resource positions of respective measurement resources (including a CSI-RS resource used for channel measurement and a CSI-RS resource and/or a CSI-IM resource used for interference measurement) corresponding to different CSI reports can be different. The CSI-RS resource for channel measurement and the CSI-IM resource for interference measurement of the CSI report 1 are respectively in slot0 and slot 1; and the CSI-RS resource for channel measurement and the CSI-IM resource for interference measurement of CSI report 2 are at slot0 and slot4, respectively. The terminal ends the DRX activation time from slot3 and enters DRX sleep time according to the configuration of the network equipment. At this time, since the CSI-IM resource for interference measurement of the CSI report 2 is in the DRX sleep time, the terminal cannot obtain an effective interference measurement result, and thus cannot obtain an effective CSI report. And the CSI-RS resource for channel measurement and the CSI-IM resource for interference measurement of the CSI report 1 are both in DRX activation time, so that the terminal can obtain effective CSI report 1.

Because the downlink signaling 1 sent by the network device in slot0 contains the uplink resource allocation information, the uplink resource allocation information is used to indicate the time-frequency resource position of the PUSCH used by the terminal to report the CSI report 1 and the CSI report 2, and the time-frequency resource is determined according to the load of the CSI report 1 and the CSI report 2. If the terminal discards the CSI report 2 at slot10, and places the CSI report 1 on the uplink resource allocated by the network device for the CSI report 1 and the CSI report 2 for transmission, rate matching needs to be performed again, so as to avoid performing rate matching again by the terminal, according to the method provided by the embodiment of the present application, the terminal directly reports the CSI report 1 and any CSI report 2 (for example, the CSI report 2 is not updated, the CSI report 2 whose value exceeds the range, and the like). In this example, the non-updated CSI report 2 is the non-updated CSI report in the above step 402, step 501, and step 601, and the CSI report 2 with an out-of-range value in this example is the CSI report with an out-of-range value in the above step 402, step 501, and step 601.

In scenario 1, the terminal may start DRX mode reception information according to the configuration of the network device before step 401 or step 402 or step 501 or step 601.

In a scenario (denoted as scenario 2) after the first configuration, that is, when the terminal receives the downlink signaling, the following situations occur: in a scenario of serving cell activation, CSI reporting configuration/reconfiguration, BWP activation change, or semi-persistent CSI activation, condition 1 is: the terminal has valid measurement resources (for convenience of description, this condition 1 is denoted as condition 1-1), or condition 1 is: the terminal has an active measurement resource and the active measurement resource is activated effectively (for convenience of description, this condition 1 is denoted as condition 1-2).

The CSI reporting configuration/reconfiguration refers to a configuration for CSI reporting or a reconfiguration for CSI reporting.

The following describes conditions 1-1 and 1-2, respectively.

Conditions 1 to 1:

the condition 1-1 may specifically be: and at the time that the CSI reference resource comprises at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement.

In scenario 2, the measurement resource that is not later than the time domain position of the CSI reference resource is an effective measurement resource of the terminal.

The condition 1-1 specifically includes cases 1 to 4, and cases 1 to 4 are described below.

In case 1, the terminal receives information indicating activation of a serving cell (i.e., serving carrier), and the terminal is activated after the serving cell (i.e., serving carrier) (in this case, the serving cell of the first configuration that is configured as the terminal is activated) and at a time no later than when the CSI reference resource contains at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement.

As can be seen from the description of the above embodiment, CSI reporting is configured according to carriers, and when one carrier is activated or when one carrier is activated and a terminal receives a downlink signaling for triggering CSI reporting of the terminal on the carrier, the terminal performs CSI reporting corresponding to the carrier. Then, when the terminal can acquire an effective measurement resource, that is, when the condition 1 is satisfied, the terminal can measure and obtain an effective CSI report and report the CSI report to the network device. The terminal cannot report an effective CSI report when the condition 1 is not met, and at the moment, the terminal can report any CSI report under the condition that the CSI report is multiplexed with uplink information or the network equipment simultaneously triggers a plurality of CSI reports, so that the introduction of extra complexity caused by the fact that the terminal performs rate matching again is avoided. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

And 2, the terminal receives information for indicating CSI reporting configuration/reconfiguration, and after the CSI reporting configuration/reconfiguration (at this time, the first configuration is the configuration for CSI reporting or the reconfiguration for CSI reporting), the terminal does not delay the CSI reference resource and comprises at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM time for interference measurement.

It can be understood that, after the network device indicates CSI reporting configuration/reconfiguration, the terminal needs to perform CSI reporting according to parameters after CSI reporting configuration/reconfiguration, and when the terminal can acquire effective measurement resources, that is, when condition 2 is satisfied, the terminal can measure and obtain an effective CSI report and report the CSI report to the network device. When the terminal does not meet the condition 2, an effective CSI report cannot be reported, and at the moment, under the condition that the CSI report is multiplexed with uplink information or the network equipment simultaneously triggers a plurality of CSI reports, the terminal can report any CSI reports, so that the introduction of extra complexity caused by the fact that the terminal carries out rate matching again is avoided. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

Case 3, the terminal receives information indicating activation of BWP change, and the terminal activates BWP change after BWP change activation (at this time, the first configuration is to activate BWP change) and no later than the CSI reference resource contains at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement.

Here, the active BWP change in the embodiment of the present application may also be referred to as active BWP handover.

In case 3, the measurement resource corresponding to the CSI report in the embodiments described in fig. 4 and fig. 5 in the embodiment of the present application belongs to a measurement resource configured to the BWP before the BWP change is activated or the BWP after the BWP change is activated, and a measurement resource corresponding to one of the M CSI reports in the embodiment described in fig. 6 in the embodiment of the present application belongs to a measurement resource configured to the BWP before the BWP change is activated or the BWP after the BWP change is activated.

When the terminal can still obtain effective measurement resources when the terminal activates BWP to change, that is, when the condition 3 is satisfied, the terminal can obtain an effective CSI report by measurement and report the CSI report to the network device. Due to the change of the active BWP, the originally valid measurement resource may become invalid for the terminal, and under this condition, the terminal no longer satisfies condition 3, and cannot report a valid CSI report, and at this time, under the condition that the CSI report is multiplexed with the uplink information or the network device triggers multiple CSI reports at the same time, the terminal may report any CSI report, thereby avoiding the introduction of additional complexity due to the rate matching being performed again by the terminal. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

A scenario in which the terminal does not satisfy case 3 is exemplified below by taking the case where the measurement resource corresponding to the CSI report in case 3 belongs to the BWP before the BWP change is activated as an example.

In the case that the terminal is triggered N (N is an integer greater than 1) CSI reports at the same time, different CSI reports may be for different carriers, that is, there is one parameter carrier in the CSI report configuration, and the carrier is used to indicate the carrier corresponding to the CSI report. The CSI report can be triggered and reported on a carrier different from the carrier corresponding to the CSI report, so that cross-carrier CSI measurement and reporting are realized. The carrier on which the CSI report is triggered and the carrier on which the CSI report is reported must be the same carrier. It should be noted that, when performing cross-carrier measurement, the measurement resource used for CSI reporting is still the measurement resource configured on the corresponding carrier. In this case, the measurement resource corresponding to each CSI report may be located on a certain BWP of the carrier corresponding to the current CSI report, and when multiple CSI reports are triggered for the same carrier, if BWPs in carriers corresponding to some CSI reports are switched, the measurement resource corresponding to the CSI reports may be disabled, so that the terminal does not satisfy condition 3.

For example, suppose that the terminal receives downlink signaling 2 on carrier CC1, and downlink signaling 2 triggers 2 CSI reports (denoted as CSI report 1 and CSI report 2) to be reported in slot10 of CC1 at the same time. The CSI report 1 corresponds to the CC1, and the CSI-RS resource for channel measurement and the CSI-IM resource for interference measurement corresponding to the CSI report 1 are respectively located on a Slot0 and a Slot2 on BWP1 of the CC 1. The CSI report 2 corresponds to the CC2, and the CSI-RS resource for performing channel measurement and the CSI-IM resource for performing interference measurement, which correspond to the CSI report 2, are respectively located on a slot0 and a slot6 on BWP1 of the CC 2. If the terminal receives the downlink signaling 5 indicating that the slot5 starts, and the BWP activated on CC2 changes from BWP1 to BWP2, the measurement resource configured on BWP1 fails (i.e. the CSI-IM resource on slot6 on BWP1 of CC2 fails), and the terminal cannot obtain the valid measurement result of CSI report 2. At this time, in order to avoid rate matching again by the terminal, the terminal may report the updated CSI report 1 and any CSI report 2 (e.g., the non-updated CSI report 2, the CSI report 2 whose value exceeds the range, etc.) to the network device.

And 4, the terminal receives information for indicating CSI reporting activation, and after the CSI reporting activation (at this time, the first configuration is CSI reporting activation), the terminal does not have time later than the CSI reference resource, wherein the time is at least one CSI-RS transmitting time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement.

It can be understood that when the network device indicates that the semi-persistent CSI is activated, the terminal needs to perform semi-persistent CSI reporting, and when the terminal can acquire effective measurement resources, that is, when the condition 4 is satisfied, the terminal can obtain an effective CSI report by measurement and report the effective CSI report to the network device. When the terminal does not meet the condition 4, an effective CSI report cannot be reported, and at the moment, under the condition that the CSI report is multiplexed with uplink information or the network equipment simultaneously triggers a plurality of CSI reports, the terminal can report any CSI reports, so that the introduction of extra complexity caused by the fact that the terminal carries out rate matching again is avoided. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

Conditions 1 to 2:

the conditions 1 to 2 may specifically be: the terminal transmits the CSI-RS for channel measurement and the CSI-RS and/or the CSI-IM for interference measurement at the time which is not later than the CSI reference resource, and is beyond the acting time delay of the activation of the serving cell, the CSI reporting configuration/reconfiguration, the activation of the BWP change or the semi-continuous CSI activation when the CSI-RS for channel measurement and the CSI-RS and/or the CSI-IM for interference measurement are transmitted.

The condition 1-2 specifically includes the case (1) to the case (4), and the case (1) to the case (4) are described below.

Case (1), the terminal receives information indicating serving cell activation, the terminal is after the serving cell activation (at this time, the first configuration is the serving cell activation of the terminal), and includes at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM time for interference measurement no later than the CSI reference resource, and is outside the onset delay of the serving cell activation (i.e., the onset delay of the first configuration) when the CSI-RS transmission time for channel measurement and the one CSI-RS and/or CSI-IM time for interference measurement are included.

The terminal receives information indicating CSI reporting configuration/reconfiguration, the terminal after the CSI reporting configuration/reconfiguration, (at this time, the first configuration is the configuration for CSI reporting or the reconfiguration for CSI reporting), and the terminal is outside the onset delay of the CSI reporting configuration/reconfiguration (i.e. the onset delay of the first configuration) at a time no later than when the CSI reference resource contains at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement, and at a time when the CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement are outside the onset delay of the CSI reporting configuration/reconfiguration.

Case (3), the terminal receives information indicating activation of BWP change, the terminal after activation of BWP change (at this time, the first configuration is to activate BWP change) and at a time no later than the CSI reference resource contains at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement, and is outside the onset delay of activation of BWP change (i.e. the onset delay of the first configuration) when the CSI-RS transmission time for channel measurement and the one CSI-RS and/or CSI-IM for interference measurement are both transmitted.

And (4) the terminal receives the information for indicating the CSI reporting activation, the terminal is after the CSI reporting activation (at this time, the first configuration is the CSI reporting activation), and at the time no later than the CSI reference resource, the terminal comprises at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM for interference measurement, and the CSI-RS transmission time for channel measurement and the one CSI-RS and/or CSI-IM for interference measurement are beyond the onset delay of the semi-continuous CSI activation (namely the onset delay of the first configuration).

In scenario 2, the measurement resource that is not later than the time domain position of the CSI reference resource is an effective measurement resource of the terminal. The measurement resource received by the terminal after the first configured onset delay is the measurement resource that has been actively activated by the terminal.

The same contents in the cases (1) to (4) as in the cases 1 to 4 can be referred to the related explanations of the cases 1 to 4, and are not described again here.

It should be noted that there is a certain delay (denoted as an onset delay) from the time when the terminal receives the signaling for the first configuration (i.e., the terminal is after the first configuration) to the onset of the first configuration, that is, there is a certain delay from the time when the terminal is after the first configuration to the onset of the first configuration, and this delay may affect CSI reporting. For example, CSI reporting is configured according to carriers, that is, a configuration parameter for CSI reporting indicates which carrier the CSI report corresponds to, and when a certain carrier is activated, CSI reporting belonging to the carrier needs to start reporting. When the terminal receives a configuration for activating the carrier (the configuration may be notified to the terminal through MAC CE signaling) until the configuration is effective (i.e., the terminal can communicate with the network device on the carrier), a certain time delay is required, and although the time domain position no later than the CSI reference resource contains at least one CSI-RS transmission time for channel measurement and one CSI-RS and/or CSI-IM time for interference measurement, the transmission time of the CSI-RS/CSI-IM is within the effective time delay (i.e., the condition (1) is not satisfied), the terminal cannot effectively perform CSI measurement.

For example, when the first configuration is the serving cell activation, referring to fig. 8, the terminal receives information for the first configuration in slot y1, and the network device sends CSI-RS/CSI-IM in slot y2, but since slot y2 is within the time delay of the first configuration, the terminal cannot receive the CSI-RS/CSI-IM smoothly, and therefore CSI measurement cannot be performed. And the CSI-RS/CSI-IM terminal sent by the network equipment in slot y3 can receive the CSI-RS/CSI-IM terminal smoothly, so that the terminal can perform CSI measurement in slot y3, and report the latest CSI report.

Similarly, when the first configuration is CSI reporting configuration/reconfiguration, referring to fig. 9, the terminal receives information for the first configuration in slot y1, and since slot y2 is within the time delay of the first configuration, that is, the CSI reporting configuration/reconfiguration does not yet take effect, the terminal cannot obtain the latest configuration parameters for CSI reporting in slot y2, and thus cannot perform CSI reporting. And after the slot y3 is delayed by the first configuration, the terminal may obtain the latest configuration parameters reported by the CSI in the slot y3, and the terminal may perform CSI measurement according to the latest configuration parameters reported by the CSI, thereby reporting the latest CSI report.

Similarly, when the first configuration activates BWP change, referring to fig. 10, the terminal receives information for the first configuration in slot y1, and since slot y2 is within the time delay of the first configuration, that is, the first configuration has not yet been effective, if the network device sends CSI-RS/CSI-IM on slot y2, the terminal cannot receive the CSI-RS/CSI-IM successfully (that is, the condition (3) is not satisfied), and thus CSI measurement cannot be performed. And the CSI-RS/CSI-IM terminal configured on the switched BWP and sent by the network device in slot y3 can successfully receive the CSI-RS/CSI-IM terminal, so that the terminal can perform CSI measurement in slot y3, thereby reporting the latest CSI report.

Similarly, when the first configuration is the semi-persistent CSI activation, referring to fig. 11, the terminal receives information for the first configuration in slot y1, and since slot y2 is within an effective time delay (e.g., 3ms) of the first configuration, that is, the first configuration does not yet take effect, if the network device sends the CSI-RS/CSI-IM corresponding to the semi-persistent CSI report on slot y2, the terminal cannot receive the CSI-RS/CSI-IM smoothly (that is, the condition (4)) and cannot perform CSI measurement. And the CSI-RS/CSI-IM terminal corresponding to the semi-continuous CSI-activated CSI report sent by the network equipment in slot y3 can successfully receive the CSI-RS/CSI-IM terminal, so that the terminal can perform CSI measurement in slot y3, thereby reporting the latest CSI report.

It can be understood that, under any one or more of the conditions (1) to (4) that the terminal does not meet, the terminal cannot report an effective CSI report, and at this time, under the condition that the CSI report is multiplexed with uplink information or the network device triggers multiple CSI reports at the same time, the terminal may report any CSI report, thereby avoiding introducing additional complexity due to rate matching anew by the terminal. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

Condition 2:

the condition 2 may specifically be: the CSI reference resource corresponding to the CSI report configuration in a certain serving cell is in an effective downlink time slot.

In the embodiment described in fig. 4 and fig. 5 of the present application, the "CSI reporting configuration" in condition 2 refers to the CSI reporting configuration of the CSI report in the embodiment described in fig. 4 and fig. 5. In the embodiment described in fig. 6 of the present application, the "CSI report configuration" in condition 2 refers to a CSI report configuration of a certain CSI report in CSI reports corresponding to M CSI reports in the embodiment described in fig. 6.

The "CSI reference resource is in an effective downlink timeslot" in condition 2 means that the "time domain position of the CSI reference resource is in an effective downlink timeslot".

When the slot in which the time domain position of the CSI reference resource corresponding to the CSI report configuration in the certain serving cell described in condition 2 is located includes at least one downlink symbol and the slot in which the time domain position of the CSI reference resource corresponding to the CSI report configuration in the certain serving cell is located is not within the measurement interval configured for the terminal by the network device, the slot is an effective downlink slot.

In a possible scenario, when a terminal receives a downlink signaling triggering a CSI report, if an active BWP in a carrier changes, a slot where a time domain position of a CSI reference resource of the CSI report is located may be changed from an originally valid downlink slot to an invalid downlink slot, so that the terminal does not satisfy condition 2.

When the time domain position of the CSI reference resource is in an invalid downlink slot (that is, condition 2 is not satisfied), the invalid downlink slot cannot carry the measurement resource, and therefore, an effective CSI report cannot be reported. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

Condition 3:

and in condition 3, the terminal does not receive the downlink signaling for indicating the deactivation of the serving cell of the terminal (that is, the terminal does not receive the downlink signaling for the deactivation of the serving cell).

When the terminal meets the condition 3, the terminal can measure and obtain an effective CSI report and report the CSI report to the network equipment. If the terminal does not satisfy the condition 3, that is, the terminal receives downlink signaling for indicating the deactivation of the serving cell of the terminal, due to the deactivation of the carrier, the configuration of CSI reporting for the deactivated carrier originally becomes invalid for the terminal, and in this case, the terminal cannot report the CSI report, and at this time, under the condition that the CSI report is multiplexed with uplink information or the network device triggers multiple CSI reports simultaneously, the terminal can report any CSI report, thereby avoiding introducing extra complexity due to the rate matching being performed again by the terminal. In the case that the CSI report is not multiplexed with the uplink information on the uplink channel, or in the case that the CSI report is not multiplexed with the uplink information on the uplink channel and the network device does not trigger a plurality of CSI reports including the CSI report, the terminal may discard the CSI report, thereby saving transmission resources.

The following exemplarily illustrates a scenario in which the terminal does not satisfy the condition 3.

In the case that the terminal is triggered N (N is an integer greater than 1) CSI reports at the same time, different CSI reports may be for different carriers, that is, there is one parameter carrier in the CSI report configuration, and the carrier is used to indicate the carrier corresponding to the CSI report. The CSI report can be triggered and reported on a carrier different from the carrier corresponding to the CSI report, so that cross-carrier CSI measurement and reporting are realized. The carrier on which the CSI report is triggered and the carrier on which the CSI report is reported must be the same carrier. It should be noted that, when performing cross-carrier measurement, the measurement resource used for CSI reporting is still the measurement resource configured on the corresponding carrier. In this case, when multiple CSI reports are triggered and reported on one carrier, carriers corresponding to some CSI reports in the multiple CSI reports may be deactivated.

For example, suppose that the terminal receives downlink signaling 3 on carrier CC1, and downlink signaling 3 triggers 2 CSI reports (denoted as CSI report 1 and CSI report 2) to report in slot10 of CC1 at the same time. The CSI report 1 corresponds to the carrier CC1, and the CSI report 2 corresponds to the carrier CC 2. If the terminal receives the downlink signaling 4 for indicating that the CC2 is deactivated from the slot5, the measurement resource configured on the CC2 corresponding to the CSI report 2 fails, and the terminal cannot obtain an effective measurement result of the CSI report 2. At this time, in order to avoid rate matching again by the terminal, the terminal may report the updated CSI report 1 and any CSI report 2 (e.g., the non-updated CSI report 2, the CSI report 2 whose value exceeds the range, etc.) to the network device.

An embodiment of the present application further provides a CSI reporting method, as shown in fig. 12, including:

when the terminal has no effective measurement resource, or the effective measurement resource is not activated effectively, or receives a downlink signaling (that is, the condition 3 is not satisfied) for indicating the deactivation of the serving cell of the terminal, the terminal performs step 1201 when the CSI report reported by the terminal is not multiplexed with the uplink information on the uplink channel, and performs step 1202 when the CSI report reported by the terminal is multiplexed with the uplink information on the uplink channel.

1201. The terminal discards the CSI report.

1202. And when the terminal reports the CSI, reporting the non-updated CSI report or the CSI report with the value exceeding the range.

And the measurement resource is a measurement resource corresponding to CSI report. When the step 1202 is implemented, the method may include: and when the terminal reports the CSI, reporting the non-updated CSI report or the CSI report with the value exceeding the range to the network equipment.

And when the terminal does not meet the condition 2, the terminal has no effective measurement resource. In addition, in the above scenario 1, when the terminal does not satisfy the condition 1 in the scenario 1, the terminal has no effective measurement resource. In scenario 2 above, when the terminal does not satisfy the condition 1-1, the terminal has no valid measurement resource.

In scenario 2 above, when the terminal does not satisfy the condition 1-2, the effective measurement resource of the terminal is not activated effectively.

Optionally, the uplink information is at least one of uplink data and HARQ result information.

The same portions of this embodiment as those of the above embodiment are explained above, and are not described herein again.

According to the method provided by the embodiment of the application, when the terminal has no effective measurement resource or the effective measurement resource is not effectively activated or receives downlink signaling for indicating the deactivation of the service cell of the terminal, the terminal cannot measure to obtain the latest CSI report, and under the condition that the CSI report and uplink information are multiplexed on an uplink channel, the terminal can send the non-updated CSI report or the CSI report with the value exceeding the range to network equipment, so that the problem of rate matching again caused by discarding of the CSI report by the terminal is avoided, additional complexity is avoided from being added to the terminal, and the additional CSI calculation complexity cannot be added when the terminal feeds back the non-updated CSI report.

An embodiment of the present application further provides a CSI reporting method, as shown in fig. 13, where the method includes:

1301. when the terminal has no effective measurement resource or the effective measurement resource is not effectively activated or receives a downlink signaling for indicating the deactivation of a service cell of the terminal, the terminal determines whether a CSI report and uplink information reported when CSI is reported are multiplexed on an uplink channel.

If yes, go to step 1302.

1302. And reporting an invalid CSI report when the terminal reports the CSI.

When implemented specifically, step 1302 may include: and the terminal reports invalid CSI reports to the network equipment when the CSI is reported.

The invalid CSI report may be any CSI report.

Optionally, the invalid CSI report is an un-updated CSI report or a CSI report with an out-of-range value.

Optionally, the method further includes: and if the terminal determines that the reported CSI report is not multiplexed with the uplink information in the uplink channel when the terminal reports the CSI, the terminal discards the CSI report.

According to the method provided by the embodiment of the application, when the terminal has no effective measurement resource or the effective measurement resource is not effectively activated, the terminal cannot measure to obtain the latest CSI report, and the terminal can send the invalid CSI report to the network equipment under the condition that the CSI report and the uplink information are multiplexed in an uplink channel, so that the problem that the terminal discards the CSI report to re-perform rate matching is avoided, extra complexity is avoided being added to the terminal, and extra CSI calculation complexity cannot be added when the terminal feeds back the non-updated CSI report.

The above description has presented the embodiments of the present application primarily from a method perspective. It is understood that the terminal includes corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above-described functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal may be divided into the functional units according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 14 shows a schematic diagram of a possible structure of the terminal (denoted as terminal 140) involved in the above embodiments, where the terminal 140 includes a processing unit 1401 and a transceiver unit 1402. Optionally, the terminal 140 further includes a storage unit 1403.

The transceiving unit 1402 is configured to support communication between the terminal and other network entities, for example, communication between network devices. In this embodiment, the transceiver 1402 is specifically configured to perform the step 402, the step 501, the step 601, the step 1202, the step 1302, and the like. The actions of the transceiving unit 1402 may be controlled by the processing unit 1401. The processing unit 1401 is specifically configured to execute step 401, step 500, step 600, step 1201, step 1301, or the like. The storage unit 1403 is used for storing program codes and data of the terminal so that the processing unit 1401 performs actions corresponding to the terminal in the embodiment of the present application.

The method provided by the embodiment of the application also provides a hardware structure schematic diagram of the terminal. Illustratively, the terminal may be a mobile phone, a tablet computer, a vehicle-mounted device, a wearable device, a television, and the like. The terminal can be provided with an Android system or other operating systems.

Fig. 15 is a schematic diagram showing a hardware configuration of a terminal (referred to as a terminal 150) according to an embodiment of the present application. Referring to fig. 15, the terminal 150 includes: radio Frequency (RF) circuitry 1510, memory 1520, other input devices 1530, a display screen 1540, sensors 1550, audio circuitry 1560, an I/O subsystem 1570, a processor 1580, and a power supply 1590. Those skilled in the art will appreciate that the terminal structure shown in fig. 15 is not intended to be limiting, and that the terminal may in fact include more or fewer components than shown, or some components may be combined, or some components may be separated, or a different arrangement of components. Those skilled in the art will appreciate that the display screen 1540 belongs to a User Interface (UI), and the terminal 150 may include more or less user interfaces than those shown.

The various components of terminal 150 are described in detail below with reference to fig. 15:

RF circuit 1510 may be used to perform reception and transmission of signals during transmission and reception of information or during a call. In particular, after receiving the downlink information of the network device, the network device may process the downlink information in the processor 1580 and send uplink data to the network device. In general, RF circuit 1510 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuit 1510 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), LTE, email, Short Message Service (SMS), etc.

The memory 1520 may be used to store software programs and modules, and the processor 1580 performs various functional applications and data processing of the terminal 150 by operating the software programs and modules stored in the memory 1520. The memory 1520 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (e.g., a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal 150. Further, the memory 1520 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

Other input devices 1530 may be used for receiving input numeric or character information and generating key signal inputs related to user settings and function control of terminal 150. In particular, other input devices 1530 can include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, a light mouse (a light mouse is a touch-sensitive surface that does not display visual output, or is an extension of a touch-sensitive surface formed by a touch screen), and the like. The other input devices 1530 are coupled to other input device controllers 1571 of the I/O subsystem 1570 and interact with the processor 1580 in signals under the control of the other input device controllers 1571.

The display screen 1540 can be used for displaying information input by or provided to the user and various menus of the terminal 150, and can also accept user input. Specifically, the display screen 1540 may include a display panel 1541, and a touch panel 1542. The display panel 1541 may be configured as a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like, and the display panel 1541 is configured as a display panel 1541. The touch panel 1542, also referred to as a touch screen, a touch-sensitive screen, etc., may collect contact or non-contact operations (e.g., operations performed by a user on or near the touch panel 1542 using any suitable object such as a finger, a stylus, etc., and may also include body-sensing operations; including single-point control operations, multi-point control operations, etc., and drive the corresponding connection device according to a preset program). Alternatively, the touch panel 1542 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction and gesture of a user, detects signals brought by touch operation and transmits the signals to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into information that can be processed by the processor, sends the information to the processor 1580, and receives and executes commands sent by the processor 1580. In addition, the touch panel 1542 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, a surface acoustic wave, and the like, and the touch panel 1542 may also be implemented by any technology developed in the future. Further, touch panel 1542 may cover display panel 1541, a user may operate on or near touch panel 1542 covered on display panel 1541 according to content displayed on display panel 1541 (the display content includes, but is not limited to, a soft keyboard, a virtual mouse, virtual keys, icons, etc.), touch panel 1542 detects the operation on or near touch panel 1541, and transmits the operation to processor 1580 through I/O subsystem 1570 to determine user input, and processor 1580 then provides corresponding visual output on display panel 1541 through I/O subsystem 1570 according to the user input. Although in fig. 15, the touch panel 1542 and the display panel 1541 are implemented as two separate components to implement the input and output functions of the terminal 150, in some embodiments, the touch panel 1542 and the display panel 1541 can be integrated to implement the input and output functions of the terminal 150.

The terminal 150 can also include at least one sensor 1550, such as light sensors, motion sensors, and other sensors. In particular, the light sensor may include an ambient light sensor and a proximity sensor. The ambient light sensor may adjust the brightness of the display panel 1541 according to the brightness of the ambient light, and the proximity sensor may turn off the display panel 1541 and/or the backlight when the terminal 150 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like. The terminal 150 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.

Audio circuit 1560, speaker 1561, and microphone 1562 may provide an audio interface between a user and terminal 150. The audio circuit 1560 may transmit the converted signal of the received audio data to the speaker 1561, and convert the signal into an audio signal by the speaker 1561 and output the audio signal; on the other hand, the microphone 1562 converts collected sound signals into a signal, which is received by the audio circuit 1560 and converted into audio data, which is output to the RF circuit 1510 for transmission to another device (such as another cell phone) or output to the memory 1520 for further processing.

The I/O subsystem 1570 controls input and output of external devices, which may include other input device controllers 1571, sensor controllers 1572, and display controllers 1573. Optionally, one or more other input control device controllers 1571 receive signals from and/or transmit signals to other input devices 1530, other input devices 1530 may include physical buttons (push buttons, rocker buttons, etc.), dials, slide switches, joysticks, click wheels, mice, etc. It is noted that other input device controllers 1571 may be connected to any one or more of the above devices. The display controller 1573 within the I/O subsystem 1570 receives signals from and/or transmits signals to the display screen 1540. After the display screen 1540 detects the user input, the display controller 1573 converts the detected user input into an interaction with a user interface object displayed on the display screen 1540, that is, human-computer interaction is realized. The sensor controller 1572 may receive signals from one or more sensors 1550 and/or transmit signals to one or more sensors 1550.

The processor 1580 is a control center of the terminal 150, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions and data processing of the terminal 150 by operating or executing software programs and/or modules stored in the memory 1520 and calling data stored in the memory 1520, thereby integrally monitoring the mobile phone. Optionally, the processor 1580 may include one or more processing units. Preferably, the processor 1580 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, and the like, and a modem processor, which mainly handles wireless communications. It is to be appreciated that the modem processor may not be integrated into the processor 1580.

The terminal 150 also includes a power supply 1590 (e.g., a battery) that provides power to the various components. Preferably, the power source may be logically connected to the processor 1580 through a power management system, so that functions of managing charging, discharging, power consumption, and the like are implemented through the power management system.

Although not shown, the terminal 150 may further include a camera, a bluetooth module, etc., which will not be described herein.

When terminal 150 executes the method provided in the embodiment of the present application, RF circuit 1510 is specifically configured to perform step 402, step 501, step 601, step 1202, or step 1302 described above. The actions performed by the RF circuitry 1510 may be controlled and performed by the processor 1580. The processor 1580 is specifically configured to perform step 401, step 500, step 600, step 1201, step 1301, or the like. The memory 1520 is used for storing program codes and data of the terminal so that the processor 1580 performs actions corresponding to the terminal in the embodiments of the present application.

The processor 1580 has the same function as the processing unit 1401 in fig. 14, the RF circuit 1510 has the same function as the transceiver unit 1402 in fig. 14, and the memory 1520 has the same function as the storage unit 1403 in fig. 14.

The present application further provides a schematic diagram of a hardware structure of a terminal (denoted as a terminal 160) related to the embodiment of the present application. As shown in fig. 16, the terminal 160 includes a processor 1601 and a communication interface 1602. Optionally, the terminal 160 further includes a memory 1603.

The processor 1601, the communication interface 1602 and the memory 1603 may be connected via a communication bus to communicate with each other and transmit control and/or data signals, the memory 1603 is used for storing computer programs, and the processor 1601 is used for calling and running the computer programs from the memory 1603 to control the communication interface 1602 to transmit and receive signals.

In a first possible implementation, the processor 1601 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program according to the present application. The communication interface 1602 may be any transceiver or the like.

In a second possible implementation, the processor 1601 may be a logic circuit and the communication interface 1602 may include an input interface and an output interface.

Memory 1603 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory may be self-contained and coupled to the processor via a bus. The memory may also be integral to the processor.

The memory 1603 is used for storing application program codes for executing the scheme of the application and is controlled by the processor 1601 to execute. The processor 1601 is configured to execute the application program code stored in the memory 1603, thereby implementing the method provided by the above-mentioned embodiment. Specifically, the communication interface 1602 is configured to perform the step 402, the step 501, the step 601, the step 1202, the step 1302, and the like. The actions performed by the communication interface 1602 may be controlled by the processor 1601. Processor 1601 is configured to perform

steps

401, 500, 600, 1201, or 1301, etc., as described above. The processor 1601 functions as the processing unit 1401 in fig. 14, the communication interface 1602 functions as the transceiver unit 1402 in fig. 14, and the memory 1603 functions as the storage unit 1403 in fig. 14. Embodiments of the present application also provide a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform any of the above methods.

Embodiments of the present application also provide a computer program product containing instructions which, when run on a computer, cause the computer to perform any of the methods described above.

The embodiment of the application also provides a system, which comprises the network equipment and the terminal in the embodiment.

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

While the present application has been described in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be evident that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary of the present application as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the present application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for reporting CSI (channel State information), is characterized by comprising the following steps:

when a terminal does not satisfy any one or more of the following conditions 1 to 3, the terminal discards a CSI report when the CSI report is reported by the terminal without multiplexing the CSI report and uplink information on an uplink channel;

when the terminal does not meet any one or more of the following conditions 1 to 3, reporting an un-updated CSI report or a CSI report with an out-of-range value when the terminal reports CSI under the condition that the CSI report reported when the terminal reports CSI and the uplink information are multiplexed on the uplink channel;

wherein, when the terminal is in the Discontinuous Reception (DRX) mode, the condition 1 is: the terminal has effective measurement resources; after the terminal is configured for the first time, the condition 1 is as follows: the terminal has effective measurement resources, or the terminal has effective measurement resources which are effectively activated; the condition 2 is as follows: the measurement resource of the terminal is in an effective downlink time slot; the condition 3 is: the terminal does not receive downlink signaling for indicating the deactivation of a serving cell of the terminal;

the measurement resource is a measurement resource corresponding to the CSI report; the first configuration is a serving cell activation of the terminal, or the first configuration is an activation bandwidth part BWP change, or the first configuration is the CSI reporting activation; or the first configuration is a configuration of the CSI report or a reconfiguration of the CSI report.

2. The method of claim 1, wherein the uplink information is at least one of uplink data and hybrid automatic repeat request (HARQ) result information.

3. A method for reporting CSI (channel State information), is characterized by comprising the following steps:

when a terminal does not meet any one or more of the following conditions 1 to 3, reporting an un-updated CSI report or a CSI report with an out-of-range value when the terminal reports CSI;

4. The method of claim 3, wherein the CSI report reported by the terminal during CSI reporting is multiplexed with uplink information in an uplink channel.

5. The method of claim 4, wherein the uplink information is at least one of uplink data and hybrid automatic repeat request (HARQ) result information.

6. A method for reporting CSI (channel State information), is characterized by comprising the following steps:

when a terminal is triggered to report N CSI simultaneously, reporting a CSI report corresponding to the M CSI reports which are not updated or have values exceeding the range and a CSI report corresponding to the N-M updated CSI reports when the terminal carries out the CSI report under the condition that the N CSI reports have the M CSI reports, wherein the M CSI reports correspond to the condition that the terminal does not meet any one or more of the following conditions 1 to 3, and the N-M CSI reports are the CSI reports except the M CSI reports in the N CSI reports; wherein N is an integer greater than 1, and M is an integer greater than 0 and less than or equal to N;

7. A terminal, comprising: a communication unit and a processing unit;

the processing unit is configured to, when it is determined that the terminal does not satisfy any one or more of the following conditions 1 to 3, discard a Channel State Information (CSI) report when the CSI report is reported by the terminal without multiplexing the CSI report with uplink information on an uplink channel;

the processing unit is further configured to, when it is determined that the terminal does not satisfy any one or more of the following conditions 1 to 3, report, by the communication unit, an CSI report that is not updated or a CSI report whose value exceeds a range, in a case where the CSI report that is reported when the terminal performs CSI reporting and the uplink information are multiplexed on the uplink channel;

8. The terminal of claim 7, wherein the uplink information is at least one of uplink data and hybrid automatic repeat request (HARQ) result information.

9. A terminal, comprising: a communication unit and a processing unit;

the processing unit is configured to report, by the communication unit, an un-updated CSI report or a CSI report whose value exceeds a range, when it is determined that the terminal does not satisfy any one or more of the following conditions 1 to 3;

10. The terminal of claim 9, wherein the CSI report reported by the terminal during CSI reporting is multiplexed with uplink information in an uplink channel.

11. The terminal of claim 10, wherein the uplink information is at least one of uplink data and hybrid automatic repeat request (HARQ) result information.

12. A terminal, comprising: a communication unit and a processing unit;

the processing unit is configured to report, by the communication unit, a CSI report corresponding to M CSI reports that are not updated or whose values exceed a range, and a CSI report corresponding to N-M updated CSI reports that do not satisfy any one or more of the following conditions 1 to 3, where the N-M CSI reports are CSI reports of the N CSI reports except the M CSI reports, when the terminal is simultaneously triggered to report N CSI states and the N CSI reports include M CSI reports; wherein N is an integer greater than 1, and M is an integer greater than 0 and less than or equal to N;

13. A terminal, comprising: a memory and a processor;

the memory is for storing computer-executable instructions, the processor implementing the method of any one of claims 1 to 6 by executing the computer-executable instructions stored by the memory.

14. A computer storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 6.

15. A terminal, comprising: a processor and a communication interface;

the processor is configured to implement the method of any one of claims 1 to 6.

16. The terminal of claim 15, wherein the terminal further comprises: a memory;

the memory configured independently of the processor or integrated in the processor, the memory for storing computer-executable instructions, the processor implementing the method of any one of claims 1 to 6, in particular by executing the computer-executable instructions stored by the memory.