CN108028720B

CN108028720B - Updating method, communication equipment and system for reporting channel state information time

Info

Publication number: CN108028720B
Application number: CN201580083303.7A
Authority: CN
Inventors: 郑娟; 官磊; 成艳
Original assignee: Shanghai Pengbang Industrial Co ltd
Current assignee: SHANGHAI PENGBANG INDUSTRIAL Co.,Ltd.
Priority date: 2015-09-24
Filing date: 2015-09-24
Publication date: 2020-05-15
Anticipated expiration: 2035-09-24
Also published as: CN108028720A; WO2017049533A1

Abstract

The invention discloses an updating method for reporting channel state information time, which comprises the following steps: determining a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information; when the time of the first reference resource meets a preset condition, updating the reporting time of the first channel state information from the first reporting time to a second reporting time; the preset condition is that a time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold. The embodiment of the invention also provides communication equipment and a system. The embodiment of the invention can ensure the reliability and the efficiency of data transmission.

Description

Updating method, communication equipment and system for reporting channel state information time

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an update method, a communication device, and a system for reporting a time of channel state information.

Background

The spectrum is a basis of wireless communication, and according to a newly released international spectrum white paper of the Federal Communications Commission (FCC), resources of an unlicensed frequency band (also called unlicensed spectrum) are greater than resources of a Licensed frequency band (Licensed spectrum), so that a Long Term Evolution (LTE) User Equipment (User Equipment, UE) is applied to the unlicensed frequency band, for example, a Licensed-Assisted Access Using Long Term Evolution (LAA-LTE) system, which can not only effectively utilize the unlicensed frequency band, but also provide more effective wireless Access and meet the increasing demand of mobile broadband services.

When the LAA-LTE system uses the unlicensed frequency band resource, it needs to comply with the regulations of the unlicensed frequency band use system in various places.

Listen Before Talk (Listen Before Talk, LBT) is an intersystem coexistence strategy, and LBT is characterized in that: before each communication device sends a signal on a certain channel, it needs to detect whether the current channel is idle, if so, the communication device can send the signal, and if not, the communication device cannot send the signal currently, so that based on the LBT rule, the LTE device is opportunistic in data transmission in the unlicensed frequency band. In order to ensure the reliability of data transmission and the data transmission efficiency, the base station may determine, according to Channel State Information (CSI) measured by the UE, a Channel State that the UE experiences when performing data communication between the base station and the UE, and select an appropriate Modulation Coding Scheme (MCS) according to the CSI to match the Channel State between the base station and the UE, so that the base station acquires accurate CSI is a precondition for ensuring the reliability of data transmission and the data transmission efficiency of the base station and the UE.

For the CSI periodically reported (including a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), and a Rank Indicator (RI)), since data transmission in an unlicensed frequency band is opportunistic, taking RI as an example, there may be a case where a time at which a reference resource of RI is located is far from a time at which RI is reported, and in this case, if RI is reported at the time at which RI is reported, a Channel state condition reflected by reported Channel state information may be greatly different from a current Channel state condition experienced by the UE, so that reliability of data transmission and data transmission efficiency between the base station and the UE are affected. Further, in the existing LTE system, since the UE uses the RI as a precondition for subsequent calculation of the wideband CQI/PMI and the narrowband CQI/PMI, a series of inaccurate CSI information reports may also be caused, thereby further affecting the reliability and efficiency of data transmission between the base station and the UE.

Disclosure of Invention

The embodiment of the invention provides an updating method, communication equipment and a system for reporting channel state information at a moment, which are used for ensuring the reliability of data transmission and the efficiency of data transmission.

A first aspect of the present invention provides an update method for reporting a time of channel state information, including:

determining a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information;

when the time of the first reference resource meets a preset condition, updating the reporting time of the first channel state information from the first reporting time to a second reporting time;

the preset condition is that a time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold.

With reference to the first aspect of the embodiment of the present invention, in a first possible implementation manner of the first aspect, after determining a first reporting time corresponding to first channel state information, the method further includes:

and reporting the first channel state information at the first reporting time.

With reference to the first aspect of the embodiment of the present invention or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

With reference to the second possible implementation manner of the first aspect of the embodiment of the present invention, in a third possible implementation manner of the first aspect, the second channel state information is channel state information with a priority that is lower than that of the first channel state information.

With reference to the second or third possible implementation manner of the first aspect of the embodiment of the present invention, in a fourth possible implementation manner of the first aspect, a time at which the first reference resource is located is different from a time at which the second reference resource corresponding to the second channel state information is located.

With reference to the first aspect of the present embodiment and any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, after the updating the reporting time of the first channel state information from the first reporting time to a second reporting time, the method further includes: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

With reference to the fifth possible implementation manner of the first aspect of the embodiment of the present invention, in a sixth possible implementation manner of the first aspect, after the reporting the first channel state information at the second reporting time, the method further includes:

reporting the second channel state information at a third reporting moment; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

With reference to the first aspect of the embodiment of the present invention and any one of the first to sixth possible implementation manners of the first aspect, in a seventh possible implementation manner of the first aspect, the reference resource is located in a time period when a serving cell of the communication device sends data on an unlicensed frequency band;

the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

A second aspect of an embodiment of the present invention provides a communication device, including:

a determining unit, configured to determine a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information;

an updating unit, configured to update the reporting time of the first channel state information from the first reporting time to a second reporting time when the time at which the first reference resource is located, which is determined by the determining unit, meets a preset condition;

With reference to the second aspect of the embodiment of the present invention, in a first possible implementation manner of the second aspect, the communication device further includes:

and a reporting unit, configured to report the first channel state information at the first reporting time.

With reference to the second aspect of the embodiment of the present invention or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

With reference to the second possible implementation manner of the second aspect of the embodiment of the present invention, in a third possible implementation manner of the second aspect, the second channel state information is channel state information with a priority that is lower than that of the first channel state information.

With reference to the second or third possible implementation manner of the second aspect of the embodiment of the present invention, in a fourth possible implementation manner of the second aspect, a time at which the first reference resource is located is different from a time at which the second reference resource corresponding to the second channel state information is located.

With reference to the second aspect of the present embodiment and any one of the first to fourth possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, the reporting unit is further configured to report the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

With reference to the fifth possible implementation manner of the second aspect of the present embodiment, in a sixth possible implementation manner of the second aspect, the reporting unit is further configured to report the second channel state information at a third reporting time; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

With reference to the second aspect of the embodiment of the present invention and any one of the first to sixth possible implementation manners of the second aspect, in a seventh possible implementation manner of the second aspect, the reference resource is located in a time period during which a serving cell of the communication device sends data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

A third aspect of an embodiment of the present invention provides a communication device, including:

a processor and a memory; wherein the processor performs the following steps by calling code or instructions in the memory:

With reference to the third aspect of the present embodiment, in a first possible implementation manner of the third aspect, after determining a first reporting time corresponding to the first channel state information, the processor is further configured to:

and reporting the first channel state information at the first reporting time.

With reference to the third aspect of the embodiment of the present invention or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

With reference to the second possible implementation manner of the third aspect of the embodiment of the present invention, in a third possible implementation manner of the third aspect, the second channel state information is channel state information with a priority that is lower than that of the first channel state information.

With reference to the second or third possible implementation manner of the third aspect of the embodiment of the present invention, in a fourth possible implementation manner of the third aspect, a time at which the first reference resource is located is different from a time at which the second reference resource corresponding to the second channel state information is located.

With reference to the third aspect of the present invention and any one of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, after the reporting time of the first channel state information is updated from the first reporting time to the second reporting time, the processor is further configured to:

reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

With reference to the fifth possible implementation manner of the third aspect of the embodiment of the present invention, in a sixth possible implementation manner of the third aspect, after the reporting of the first channel state information at the second reporting time, the processor is further configured to:

With reference to the third aspect of the present embodiment and any one of the first to sixth possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the reference resource is located in a time period when a serving cell of the communication device sends data on an unlicensed frequency band;

A third aspect of the embodiments of the present invention provides a communication system, including:

the base station is configured to send channel state parameter information to the communication device, where the channel state parameter information includes parameter information used to determine a reporting time for reporting the channel state information;

the communication equipment is used for receiving the channel state parameter information sent by the communication equipment; determining a first reporting time corresponding to first channel state information and a first reference resource corresponding to the first reporting time according to the channel state parameter information; when the time of the first reference resource meets a preset condition, updating the reporting time of the first channel state information from the first reporting time to a second reporting time;

With reference to the fourth aspect of the embodiment of the present invention, in a first possible implementation manner of the fourth aspect, after the communication device determines, according to the channel state parameter information, a first reporting time corresponding to first channel state information,

the communication device is further configured to report the first channel state information at the first reporting time;

the base station is further configured to receive the first channel state information reported by the communication device at a first reporting time.

With reference to the fourth aspect of the present embodiment or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

With reference to the second possible implementation manner of the fourth aspect of the embodiment of the present invention, in a third possible implementation manner of the fourth aspect, the second channel state information is channel state information with a priority that is second to the first channel state information.

With reference to the second or third possible implementation manner of the fourth aspect of the embodiment of the present invention, in a fourth possible implementation manner of the fourth aspect, a time at which the first reference resource is located is different from a time at which the second reference resource corresponding to the second channel state information is located.

With reference to the fourth aspect of the present embodiment and any one of the first to fourth possible implementation manners of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, after the communication device updates the reporting time of the first channel state information from the first reporting time to a second reporting time, the communication device is further configured to: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

With reference to the fifth possible implementation manner of the fourth aspect of the present embodiment, in a sixth possible implementation manner of the fourth aspect, after the communication device reports the first channel state information at the second reporting time, the communication device is further configured to: reporting the second channel state information at a third reporting moment; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

With reference to the fourth aspect of the present embodiment and the first to sixth possible implementation manners of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the reference resource is located in a time period when a serving cell of the communication device sends data on an unlicensed frequency band;

The embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, when the moment of the first reference resource corresponding to the first channel state information meets the preset condition, the reporting moment of the first channel state information is updated from the first reporting moment to the second reporting moment. Because the reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold, the time range between the time at which the reference resource different from the first reference resource exists and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state experienced by the UE, the accuracy of the Channel State Information (CSI) received by the base station is ensured, and the data transmission reliability and the data transmission efficiency between the base station and the UE are ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

fig. 2a is a flowchart of an updating method for reporting a time of channel state information according to an embodiment of the present invention;

fig. 2b is a schematic diagram of unlicensed frequency band data transmission according to an embodiment of the present invention;

fig. 3 is a flowchart of a second embodiment of an updating method for reporting a channel state information time according to an embodiment of the present invention;

fig. 4 is a flowchart of a third embodiment of an updating method for reporting a channel state information time according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a communication device according to a first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a communication device according to a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a communication system according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following are detailed below.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of the invention and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

In order to facilitate understanding of the embodiments of the present invention, a network architecture of the embodiments of the present invention is described below. Referring to fig. 1, fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention. As shown in fig. 1, the network architecture of the embodiment of the present invention may include a UE and a base station. The network architecture is for wireless communication systems, in particular for LTE systems with licensed band assisted access (i.e. LAA-LTE systems). The LAA-LTE system refers to an LTE system in which a licensed band and an unlicensed band are used together by Carrier Aggregation (CA) or non-CA. For example, the mainstream deployment scenario is a scenario in which a licensed frequency band and an unlicensed frequency band are jointly used by carrier aggregation CA, that is, a carrier included in the licensed frequency band or a cell operating on the licensed frequency band is used as a main cell, and a carrier included in the unlicensed frequency band or a cell operating on the unlicensed frequency band is used as an auxiliary cell, where the main cell and the auxiliary cell may be deployed in a co-site manner or in a non-co-site manner, and an ideal backhaul path is provided between the two cells. The network architecture is not limited to the CA scenario, but may also be applied to other deployment scenarios, such as a scenario in which there is no ideal backhaul path between two cells (a primary cell and a secondary cell), or a scenario in which backhaul delay is large, which results in that information cannot be quickly coordinated between the two cells, and the like. The communication device according to the embodiment of the present invention may be any one of a relay node between the UE and the base station or the UE, and the UE may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID) or other devices capable of supporting network interaction. The cell may be a cell corresponding to a base station, and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services. The carrier in the LTE system may have multiple cells working at the same frequency, and under some special scenarios, the concept of the carrier in the LTE system and the concept of the cell may also be considered to be the same. For example, in a CA scenario, when configuring a secondary carrier for a UE, the secondary carrier may simultaneously carry a carrier index of the secondary carrier and a Cell identity (Cell ID) of a secondary Cell operating on the secondary carrier, and in this case, the concept of the carrier and the Cell may be considered to be equivalent, for example, it is equivalent that the UE accesses one carrier and one Cell. The present invention will be described in terms of a concept of a cell.

The invention discloses an embodiment of an updating method for reporting channel state information time. The updating method for reporting the channel state information time comprises the following steps: determining a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information; when the time of the first reference resource meets a preset condition, updating the reporting time of the first channel state information from the first reporting time to a second reporting time; the preset condition is that a time range between the time when the first reference resource is located and the first reporting time is greater than or equal to a time threshold, a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold.

Referring to fig. 2, fig. 2 is a flowchart of an updating method for reporting a time of channel state information according to a first embodiment of the present invention. As shown in fig. 2, an updating method for reporting a time of channel state information according to an embodiment of the present invention may include steps S201 to S202:

s201, the UE determines a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information.

In the embodiment of the present invention, a specific implementation manner of determining, by the UE, a first reporting time corresponding to the first channel state information is as follows: after the UE establishes communication connection with the base station, the base station sends channel state parameter information to the UE, wherein the channel state parameter information comprises parameter information used for determining the reporting time of reporting the channel state information; and the UE receives the channel state parameter information sent by the base station, and determines a first reporting time corresponding to the first channel state information according to the channel state parameter information including parameter information used for determining the reporting time of the channel state information. The base station can periodically send channel state parameter information to the UE; or, the base station may also send the channel state parameter information to the UE after a preset time after the UE establishes a communication connection with the base station; or, the base station may also directly send the channel state parameter information to the UE after the UE establishes the communication connection with the base station, and the like, which is not limited in the present invention. If the UE reports the channel state information periodically, the channel state parameter information may include a reporting period and an offset in the reporting period, so that the UE may determine a reporting time for reporting the channel state information; if the UE reports the channel state information non-periodically, the channel state parameter information may include an Uplink Scheduling Grant (Uplink Scheduling Grant), and after receiving the Uplink Scheduling Grant, the UE may determine the reporting time for reporting the channel state information according to a predefined relationship between the Uplink Scheduling Grant transmission time and the reporting time, for example, for an LTE system, the Uplink Scheduling Grant transmission time and the reporting time are both expressed by subframes, and the predefined relationship between the Uplink Scheduling Grant transmission time and the reporting time may be 4 milliseconds. The first channel state information may be, for example, rank indication RI, wideband channel quality indication CQI, or wideband precoding matrix indication PMI, or may be narrowband CQI, narrowband PMI, or the like. The first channel state information in the embodiment of the present invention is described by taking rank indication RI as an example.

In the embodiment of the present invention, a specific implementation manner of the UE determining the first reference resource corresponding to the first channel state information is as follows: and the UE determines a first reference resource corresponding to the first channel state information according to the first reporting time of the first channel state information. Specifically, the current third Generation partnership project (3 GPP) protocol defines reference resources used for measuring CSI. In the definition, the reference resource includes a time domain resource and a frequency domain resource, the time domain resource is generally represented by the time domain resource corresponding to the time unit in which the reference resource is located, the time unit may be any one of a radio frame, a subframe, a time slot and an OFDM symbol, and correspondingly, the time domain resource corresponding to the time unit may be the time domain resource included in the radio frame, the time domain resource included in the subframe, the time domain resource included in the time slot and the time domain resource included in the OFDM symbol; the frequency domain resources indicate all or a part of the frequency resources included in the time unit. In the embodiment of the present invention, time domain resources included in reference resources are mainly discussed, and frequency domain resources included in reference resources are not specifically limited. For the time domain resources included in the reference resources, the time domain resources may generally be represented by index numbers of time units in which the time domain resources are located, for example, for the CSI reported periodically, if the time at which the CSI is reported periodically is a subframe with a subframe index of n, a subframe index of a subframe in which the CSI reference resources corresponding to the reporting time are located is n-m, where m satisfies the following condition: of downlink or special subframes with m greater than or equal to 4 and making subframe n-m availableThe smallest integer value. The special subframe is a subframe format adopted in a Time Division Duplex (TDD) system, and includes a Downlink Pilot Time Slot (DwPTS), an Uplink Pilot Time Slot (UpPTS), and a Guard interval (Guard Period, GP) in the special subframe. Therefore, in order to ensure the accuracy of measuring the CSI by the UE in the LAA-LTE system, the reference resource for measuring the CSI may be defined as a subframe which is 4ms away from the CSI reporting time and is closest to the CSI reporting time and located within an on-duration, where the on-duration is a time period during which the base station serving the UE camps on the unlicensed frequency band resource and transmits data on the unlicensed frequency band. Therefore, the first reference resource is a subframe that is 4ms away from the first reporting time, is closest to the first reporting time, and is within the on-duration. It should be noted that, in the embodiment of the present invention, the subframe index may be represented by a number in one radio frame, for example, a radio frame includes 10 subframes, the subframe index in one radio frame may be represented by k, where k is any integer from 0 to 9, in this case, if n-m mentioned above is less than 0, it indicates that the subframe corresponding to n-m precedes the radio frame where the subframe n is located, and if n-m is greater than 9, it indicates that the subframe corresponding to n-m follows the radio frame where the subframe n is located; on the other hand, the subframe index can also be used

Where nf represents a radio frame index number, which can be any integer from 0 to 1023, ns represents a slot index number, which can be any integer from 0 to 19,

indicating that x is rounded down and the "/" indicates a division operator. The reference resource in the embodiment of the present invention is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring the channel state information, that is, the reference signal for measuring the channel state information is distributed in the reference resource, and the reference signal at least includes any one of the following: community publicReference Signal (CRS), Signal State information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS), and Discovery Reference Signal (DRS), wherein CSI-RS may further include non-Zero Power (NZP) CSI-RS and CSI-IM (CSI-interference measurement).

S202, when the time at which the first reference resource is located meets a preset condition, the UE updates the reporting time of the first channel state information from the first reporting time to a second reporting time, where the preset condition is that a time range between the time at which the first reference resource is located and the first reporting time is greater than or equal to a time threshold, a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold.

The preset condition is that a time range between the time of the first reference resource and the first reporting time is greater than or equal to a time threshold. Or, in other words, when the first reference resource is an invalid reference resource, the UE updates the reporting time of the first csi from the first reporting time to a second reporting time. The invalid reference resource means that, if the UE calculates the channel state information according to the invalid reference resource, the calculated channel state information cannot reflect a channel state experienced when the UE receives the data service of the serving cell. For example, according to the manner defined by the existing protocol, as described in the specific step of determining the reference resource in step S201, it is not repeated herein, if the determined reference resource is located in the time range that the serving cell does not occupy the unlicensed frequency band, i.e. the off-duration of the corresponding serving cell in the unlicensed frequency band, the determined reference resource may be considered as an invalid reference resource, because, before the serving cell performs data transmission in the unlicensed frequency band, the usability of the unlicensed frequency band needs to be determined by using a listening mechanism, e.g. LBT, and once the serving cell performs data transmission in the unlicensed frequency band, in the time range of data transmission, other cells except the serving cell only listen to the serving cell during data transmission, and then perform data transmission in the time range of the serving cell, it remains silent, i.e. no data is sent. Therefore, when the serving cell is in the on-duration and the off-duration of the unlicensed frequency band, the level of channel interference experienced between the serving cell and the UE is different, and therefore, if the time at which the first reference resource is located is within the off-duration of the serving cell, the first reference resource may be considered as an invalid reference resource. That is to say, the preset condition may further include that the time at which the first reference resource is located is in a time period in which the serving cell of the UE does not send data on the unlicensed frequency band, or in a time period in which the serving cell does not preempt the channel use opportunity in the unlicensed frequency band. At this time, the UE may not report any information at the first reporting time; or reporting the special channel state information at the first reporting time to reflect that the reported channel state information is invalid, for example, the reported special channel state information may be out of range (OOR). And meanwhile, updating the first reporting time to a second reporting time.

It should be noted that, in the embodiment of the present invention, it is sensed that the serving cell is performing data transmission, or through a signal detection manner, or through an energy detection manner, or a combination of the two manners. The signal detection means detecting a signal transmitted by the serving cell, and the energy detection means that the data energy of the serving cell reaching other cells exceeds a certain threshold, for example, a power threshold.

It should be noted that, in the embodiment of the present invention, the channel state information may include, in addition to the CQI, the PMI, and the RI, other information capable of reflecting when the serving cell communicates with the UE, and the embodiment of the present invention is not limited thereto. Wherein the time thresholds can be represented by at least one of the following: an integer number of subframes, an integer number of slots, an integer number of radio frames, an integer number of OFDM symbols. The time threshold is related to the channel state stationarity of the UE, for example, based on the consideration of the longest reporting period of the RI defined in the current 3GPP protocol, the reported RI is considered to be valid within the reporting period range, and can support the calculation of CQI or PMI. That is to say, when the time range between the time at which the first reference resource is located and the first reporting time is greater than or equal to the time threshold, it may be considered that the first channel state information calculated based on the first reference resource cannot reflect the channel state experienced by the UE on the channel where the UE is located. Said first time threshold and said second time threshold may be standardized; alternatively, the first time threshold and the second time threshold may be carried in channel state parameter information sent to the UE by the base station serving the UE, or may be preconfigured. The present invention is not limited thereto, and different first channel state information may correspond to different time thresholds.

And a reference resource different from the first reference resource exists between the first reporting time and the second reporting time. Specifically, please refer to fig. 2b, where fig. 2b is a schematic diagram of data transmission of an unlicensed frequency band, and the reference resource different from the first reference resource preempts the unlicensed frequency band resource between a first reporting time and a second reporting time for a serving cell that should serve the UE. If the serving cell serving the UE does not preempt the unlicensed frequency band resource between the first reporting time and the second reporting time, it is obvious that the reference resource corresponding to the second channel state information is close to the reference resource corresponding to the first channel state information, and therefore, the time range between the reference resource corresponding to the second reporting time and the second reporting time may still meet the preset condition. Therefore, in order to ensure the accuracy of the CSI received by the base station, when a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and a time range between the first reporting time and the second reporting time is smaller than the time threshold, the first reporting time is updated to the second reporting time. That is, the time range between the first reporting time and the second reporting time is smaller than the time threshold, and therefore, the time range between the time at which the reference resource different from the first reference resource is located and the second reporting time is necessarily smaller than the time threshold.

In an embodiment of the present invention, the second reporting time is an original configuration reporting time corresponding to the second channel state information. And the reporting time of the original configuration corresponding to the second channel state information is the reporting time for reporting the second channel state information, which is determined by the UE according to the channel state parameter information sent by the base station. The second channel state information is different from the first channel state information. The first channel state information and the second channel state information may each include any one of RI, wideband CQI, wideband PMI, subband CQI, and subband PMI. For example, RI and wideband CQI, wideband PMI represent different channel state information, wideband CQI and wideband PMI represent different channel state information, for subband CQI, if the subband corresponding to subband CQI is different, it is also considered as different channel state information, for subband PMI, if the subband corresponding to subband PMI is different, it is also considered as different channel state information.

In another embodiment of the present invention, the second channel state information is a channel state information having a priority next to the first channel state information. That is, if the first channel state information is RI, the second channel state information may be at least one of wideband CQI, wideband PMI, narrowband CQI, and narrowband PMI, and in this embodiment, the second channel state information is wideband CQI/PMI, and further, the second reporting time is an original configuration reporting time corresponding to wideband CQI/PMI, where the second reporting time is determined by the UE according to parameter information used by the base station to determine the reporting time for reporting the channel state information, where the channel state parameter information is transmitted to the UE by the base station.

In another embodiment of the present invention, the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second reporting time is located. That is, the time at which the original configured reference resource corresponding to the RI is located is different from the time at which the original configured reference resource corresponding to the wideband CQI/PMI is located. It should be noted that, in the embodiment of the present invention, the time at which the reference resource is located may be represented by a time unit at which the reference resource is located; alternatively, the index number of the time unit may be expressed by an index number of the time unit, for example, when the time unit is expressed by a subframe, the index number of the time unit may be a subframe index number. Correspondingly, if the time at which the reference resource is located is represented by the subframe at which the reference resource is located, the different times indicate that the subframes at which the reference resource is located are not the same. If the time of the reference resource is represented by the OFDM symbol of the reference resource, the different times mean that the OFDM symbols are not the same.

It can be seen that, in the embodiment of the present invention, when the time at which the first reference resource corresponding to the first channel state information is located meets the preset condition, the reporting time of the first channel state information is updated from the first reporting time to the second reporting time. Because the reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold, the time range between the time at which the reference resource different from the first reference resource exists and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state experienced by the UE, the accuracy of the channel state information CSI received by the base station is ensured, and the data transmission reliability and the data transmission efficiency between the base station and the UE are ensured.

Optionally, after the UE determines a first reporting time corresponding to the first channel state information, the updating method for reporting the channel state information time further includes: and reporting the first channel state information at the first reporting time. That is, after the UE determines the first reporting time corresponding to the first channel state information, regardless of whether the subsequent UE updates the first reporting time, the UE reports the first channel state information at the first reporting time.

Optionally, after the UE updates the reporting time of the first channel state information from the first reporting time to a second reporting time, the updating method of the reporting time of the channel state information further includes: the UE reports the first channel state information and the second channel state information at the second reporting time; or, the UE reports the first channel state information at the second reporting time.

Optionally, after the UE reports the first channel state information at the second reporting time, the method for updating the reporting time of the channel state information further includes: reporting the second channel state information at a third reporting moment; the third reporting time is a channel state information reporting time adjacent to the second reporting time after the second reporting time; or the third reporting time is the reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

Referring to fig. 3, fig. 3 is a flowchart of a second embodiment of an updating method for reporting a time of channel state information according to an embodiment of the present invention. As shown in fig. 3, an updating method for reporting a time of channel state information according to an embodiment of the present invention may include steps S301 to S305:

s301, the UE determines a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information.

In the embodiment of the present invention, a specific implementation manner of determining, by the UE, a first reporting time corresponding to the first channel state information is as follows: after the UE establishes communication connection with the base station, the base station sends channel state parameter information to the UE, wherein the channel state parameter information comprises parameter information used for determining the reporting time of reporting the channel state information; and the UE receives the channel state parameter information sent by the base station, and determines a first reporting time corresponding to the first channel state information according to the channel state parameter information including parameter information used for determining the reporting time of the channel state information. The base station can periodically send channel state parameter information to the UE; or, the base station may also send the channel state parameter information to the UE after a preset time after the UE establishes a communication connection with the base station; or, the base station may also directly send the channel state parameter information to the UE after the UE establishes the communication connection with the base station, and the like, which is not limited in the present invention. If the UE reports the channel state information periodically, the channel state parameter information may include a reporting period and an offset in the reporting period, so that the UE may determine a reporting time for reporting the channel state information; if the UE reports the channel state information non-periodically, the channel state parameter information may include an uplink scheduling grant, and after receiving the uplink scheduling grant, the UE may determine the reporting time for reporting the channel state information according to a relationship between a predefined uplink scheduling grant transmission time and the reporting time, for example, for an LTE system, the uplink scheduling grant transmission time and the reporting time are both expressed by subframes, and the relationship between the predefined uplink scheduling grant transmission time and the reporting time may be 4 milliseconds. The first channel state information may be, for example, rank indication RI, wideband channel quality indication CQI, or wideband precoding matrix indication PMI, or may be narrowband CQI, narrowband PMI, or the like. The first channel state information in the embodiment of the present invention is described by taking rank indication RI as an example.

In the embodiment of the present invention, a specific implementation manner of the UE determining the first reference resource corresponding to the first channel state information is as follows: and the UE determines a first reference resource corresponding to the first channel state information according to the first reporting time of the first channel state information. Specifically, the current third generation partnership project 3GPP protocol defines the reference resources used for measuring CSI. In the definition, the reference resource includes a time domain resource and a frequency domain resource, the time domain resource is generally represented by the time domain resource corresponding to the time unit in which the reference resource is located, the time unit may be any one of a radio frame, a subframe, a time slot and an OFDM symbol, and correspondingly, the time domain resource corresponding to the time unit may be the time domain resource included in the radio frame, the time domain resource included in the subframe, the time domain resource included in the time slot and the time domain resource included in the OFDM symbol; the frequency domain resources are represented in the time unit, includingAll or a portion of the frequency resources. In the embodiment of the present invention, time domain resources included in reference resources are mainly discussed, and frequency domain resources included in reference resources are not specifically limited. For the time domain resources included in the reference resources, the time domain resources may generally be represented by index numbers of time units in which the time domain resources are located, for example, for the CSI reported periodically, if the time at which the CSI is reported periodically is a subframe with a subframe index of n, a subframe index of a subframe in which the CSI reference resources corresponding to the reporting time are located is n-m, where m satisfies the following condition: m is greater than or equal to 4 and makes subframe n-m the smallest integer value of an available downlink subframe or special subframe. The special subframe is a subframe format adopted in a TDD system, and includes DwPTS, UpPTS, and GP in the special subframe. Therefore, in order to ensure the accuracy of measuring the CSI by the UE in the LAA-LTE system, the reference resource for measuring the CSI may be defined as a subframe which is 4ms away from the CSI reporting time and is closest to the CSI reporting time and located within an on-duration, where the on-duration is a time period during which the base station serving the UE camps on the unlicensed frequency band resource and transmits data on the unlicensed frequency band. Therefore, the first reference resource is a subframe that is 4ms away from the first reporting time, is closest to the first reporting time, and is within the on-duration. It should be noted that, in the embodiment of the present invention, the subframe index may be represented by a number in one radio frame, for example, a radio frame includes 10 subframes, the subframe index in one radio frame may be represented by k, where k is any integer from 0 to 9, in this case, if n-m mentioned above is less than 0, it indicates that the subframe corresponding to n-m precedes the radio frame where the subframe n is located, and if n-m is greater than 9, it indicates that the subframe corresponding to n-m follows the radio frame where the subframe n is located; on the other hand, the subframe index can also be used

indicating that x is rounded down and the "/" indicates a division operator. The reference resource in the embodiment of the present invention is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring the channel state information, that is, the reference signal for measuring the channel state information is distributed in the reference resource, and the reference signal at least includes any one of the following: CRS, CSI-RS, DMRS and DRS, wherein the CSI-RS can also comprise NZP-CSI-RS and CSI-IM.

S302, the UE reports the first channel state information at the first reporting time.

In the embodiment of the present invention, since the UE cannot determine in advance whether a new reference resource exists between the first reporting time and the second reporting time, if the following step S303 updates the first reporting time to the second reporting time, the reference resource corresponding to the second reporting time may not be as close to the channel status experienced by the UE as possible, that is, the time range between the time of the second reference resource and the second reporting time may also meet the preset condition, that is, the second reporting time may not be a relatively suitable reporting time, and at this time, in order to avoid the situation of missing channel state information, the UE reports the first channel state information at the first reporting time, therefore, the base station can determine the channel state experienced by the UE by using the channel state information reported at the first reporting time, and further avoid the condition of channel state information loss.

S303, if the time at which the first reference resource is located meets a preset condition, the UE updates the reporting time of the first channel state information from the first reporting time to a second reporting time, where the preset condition is that a time range between the time at which the first reference resource is located and the first reporting time is greater than or equal to a time threshold, a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold.

The preset condition is that a time range between the time of the first reference resource and the first reporting time is greater than or equal to a time threshold. Or, in other words, when the first reference resource is an invalid reference resource, the UE updates the reporting time of the first csi from the first reporting time to a second reporting time. The invalid reference resource means that, if the UE calculates the channel state information according to the invalid reference resource, the calculated channel state information cannot reflect a channel state experienced when the UE receives the data service of the serving cell. For example, according to the manner defined by the existing protocol, as described in the specific step of determining the reference resource in step S301, it is not repeated herein, if the determined reference resource is located in the time range that the serving cell does not occupy the unlicensed frequency band, i.e. the off-duration of the corresponding serving cell in the unlicensed frequency band, the determined reference resource may be considered as an invalid reference resource, because, before the serving cell performs data transmission in the unlicensed frequency band, the usability of the unlicensed frequency band needs to be determined by using a listening mechanism, e.g. LBT, and once the serving cell performs data transmission in the unlicensed frequency band, in the time range of data transmission, other cells except the serving cell only listen to the serving cell during data transmission, and then perform data transmission in the time range of the serving cell, it remains silent, i.e. no data is sent. Therefore, when the serving cell is in the on-duration and the off-duration of the unlicensed frequency band, the level of channel interference experienced between the serving cell and the UE is different, and therefore, if the time at which the first reference resource is located is within the off-duration of the serving cell, the first reference resource may be considered as an invalid reference resource. That is to say, the preset condition may further include that the time at which the first reference resource is located is in a time period in which the serving cell of the UE does not send data on the unlicensed frequency band, or in a time period in which the serving cell does not preempt the channel use opportunity in the unlicensed frequency band. At this time, the UE may not report any information at the first reporting time; or reporting the special channel state information at the first reporting time to reflect that the reported channel state information is invalid, for example, the reported special channel state information may be out of range (OOR). And meanwhile, updating the first reporting time to a second reporting time.

S304, the UE reports the first channel state information at the second reporting time.

In the embodiment of the present invention, the UE reports the first channel state information at the second reporting time. That is, the UE only reports RI at the reporting time of the wideband CQI/PMI, and does not report the wideband CQI/PMI.

In another embodiment of the present invention, the UE may report the second channel state information while reporting the first channel state information at the second reporting time. That is, the UE reports the RI and the wideband CQI/PMI at the same time at the reporting time of the wideband CQI/PMI.

S305, the UE reports the second channel state information at a third reporting time.

In an embodiment of the present invention, the third reporting time may be a reporting time of channel state information of a second reporting time that is adjacent to and after the second reporting time. That is to say, reporting time corresponding to the channel state information reported periodically is delayed in sequence, for example, the UE supports RI reporting, wideband CQI/PMI and subband CQI/PMI reporting, and the UE needs to report channel state information of 2 subbands, and then the order of reporting by the UE is: and reporting the RI at the reporting time of the wideband CQI/PMI, reporting the wideband CQI/PMI at the reporting time of the first subband CQI/PMI, reporting the first subband CQI/PMI at the reporting time of the second subband CQI/PMI and the like in sequence.

In another embodiment of the present invention, the third reporting time is an original configuration reporting time of third channel state information, and the third channel state information is channel state information of the same type in an adjacent cycle after the second channel state information. For example, the second channel state information is wideband CQI, the second reporting time is a reporting time for reporting wideband CQI, and the third reporting time is a reporting time for reporting wideband CQI next after the second reporting time. That is, the UE discards the second channel state information at the second reporting time, and reports the second channel state information at the next reporting time of the original configuration instead of reporting the second state information at the subsequent reporting time. For example, the UE supports RI reporting, wideband CQI/PMI reporting, and subband CQI/PMI reporting, and needs to report channel state information of 2 subbands, where the first channel state information is RI, and the second channel state information is wideband CQI/PMI, and then the order of reporting by the UE is: reporting RI at the reporting time of the broadband CQI/PMI, reporting the first subband CQI/PMI at the reporting time of the first subband CQI/PMI, reporting the second subband CQI/PMI at the reporting time of the second subband CQI/PMI, and reporting the broadband CQI/PMI at the reporting time of the broadband CQI/PMI.

Referring to fig. 4, fig. 4 is a flowchart of a third embodiment of an updating method for reporting a time of channel state information according to an embodiment of the present invention. As shown in fig. 4, an updating method for reporting a time of channel state information according to an embodiment of the present invention may include steps S401 to S410:

s401, a base station sends channel state parameter information to UE, wherein the channel state parameter information comprises parameter information used for determining the reporting time of reporting the channel state information.

In the embodiment of the invention, the base station can periodically send channel state parameter information to the UE; or, the base station may also send the channel state parameter information to the UE after a preset time after the UE establishes a communication connection with the base station; or, the base station may also directly send the channel state parameter information to the UE after the UE establishes the communication connection with the base station, and the like, which is not limited in the present invention.

S402, the UE receives the channel state parameter information sent by the base station.

S403, the UE determines a first reporting time of first channel state information and a first reference resource corresponding to the first channel state information according to the channel state parameter information.

In the embodiment of the invention, the UE determines the first channel state informationThe specific implementation of the corresponding first reference resource is as follows: and the UE determines a first reference resource corresponding to the first channel state information according to the first reporting time of the first channel state information. Specifically, the current third generation partnership project 3GPP protocol defines the reference resources used for measuring CSI. In the definition, the reference resource includes a time domain resource and a frequency domain resource, the time domain resource is generally represented by the time domain resource corresponding to the time unit in which the reference resource is located, the time unit may be any one of a radio frame, a subframe, a time slot and an OFDM symbol, and correspondingly, the time domain resource corresponding to the time unit may be the time domain resource included in the radio frame, the time domain resource included in the subframe, the time domain resource included in the time slot and the time domain resource included in the OFDM symbol; the frequency domain resources indicate all or a part of the frequency resources included in the time unit. In the embodiment of the present invention, time domain resources included in reference resources are mainly discussed, and frequency domain resources included in reference resources are not specifically limited. For the time domain resources included in the reference resources, the time domain resources may generally be represented by index numbers of time units in which the time domain resources are located, for example, for the CSI reported periodically, if the time at which the CSI is reported periodically is a subframe with a subframe index of n, a subframe index of a subframe in which the CSI reference resources corresponding to the reporting time are located is n-m, where m satisfies the following condition: m is greater than or equal to 4 and makes subframe n-m the smallest integer value of an available downlink subframe or special subframe. The special subframe is a subframe format adopted in a TDD system, and includes DwPTS, UpPTS, and GP in the special subframe. Therefore, in order to ensure the accuracy of measuring the CSI by the UE in the LAA-LTE system, the reference resource for measuring the CSI may be defined as a subframe which is 4ms away from the CSI reporting time and is closest to the CSI reporting time and located within an on-duration, where the on-duration is a time period during which the base station serving the UE camps on the unlicensed frequency band resource and transmits data on the unlicensed frequency band. Therefore, the first reference resource is a subframe that is 4ms away from the first reporting time, is closest to the first reporting time, and is within the on-duration. It should be noted that, in the embodiment of the present invention, the subframe index may be used in one radio frameThe number of the subframe is denoted by, for example, one radio frame includes 10 subframes, and the subframe index in one radio frame may be denoted by k, where k is any integer from 0 to 9, in which case, if the above-mentioned n-m is less than 0, it means that the subframe corresponding to n-m precedes the radio frame where the subframe n is located, and if n-m is greater than 9, it means that the subframe corresponding to n-m follows the radio frame where the subframe n is located; on the other hand, the subframe index can also be used

S404, the UE reports the first channel state information at the first reporting time.

In the embodiment of the present invention, because the UE cannot determine in advance whether a new reference resource exists between the first reporting time and the second reporting time, if the following step S406 updates the first reporting time to the second reporting time, the reference resource corresponding to the second reporting time still satisfies the preset condition, that is, the time range between the time at which the second reference resource exists and the second reporting time may also meet the preset condition, that is, the second reporting time may not be a relatively proper reporting time, and at this time, to avoid the situation of channel state information loss, the UE reports the first channel state information at the first reporting time, so that the base station can determine the channel state experienced by the UE by using the channel state information reported at the first reporting time, thereby avoiding the situation of channel state information loss.

S405, the base station receives the first channel state information reported by the UE at a first reporting time.

S406, if the time at which the first reference resource is located meets a preset condition, the UE updates the reporting time of the first channel state information from the first reporting time to a second reporting time, where the preset condition is that a time range between the time at which the first reference resource is located and the first reporting time is greater than or equal to a time threshold, a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold.

The preset condition is that a time range between the time of the first reference resource and the first reporting time is greater than or equal to a time threshold. Or, in other words, when the first reference resource is an invalid reference resource, the UE updates the reporting time of the first csi from the first reporting time to a second reporting time. The invalid reference resource means that, if the UE calculates the channel state information according to the invalid reference resource, the calculated channel state information cannot reflect a channel state experienced when the UE receives the data service of the serving cell. For example, according to the manner defined by the existing protocol, as described in the specific step of determining the reference resource in step S401, it is not repeated herein, if the determined reference resource is located in the time range that the serving cell does not occupy the unlicensed frequency band, i.e. the off-duration of the corresponding serving cell in the unlicensed frequency band, the determined reference resource may be considered as an invalid reference resource, because, before the serving cell performs data transmission in the unlicensed frequency band, the usability of the unlicensed frequency band needs to be determined by using a listening mechanism, e.g. LBT, and once the serving cell performs data transmission in the unlicensed frequency band, in the time range of data transmission, other cells except the serving cell only listen to the serving cell during data transmission, and then perform data transmission in the time range of the serving cell, it remains silent, i.e. no data is sent. Therefore, when the serving cell is in the on-duration and the off-duration of the unlicensed frequency band, the level of channel interference experienced between the serving cell and the UE is different, and therefore, if the time at which the first reference resource is located is within the off-duration of the serving cell, the first reference resource may be considered as an invalid reference resource. That is to say, the preset condition may further include that the time at which the first reference resource is located is in a time period in which the serving cell of the UE does not send data on the unlicensed frequency band, or in a time period in which the serving cell does not preempt the channel use opportunity in the unlicensed frequency band. At this time, the UE may not report any information at the first reporting time; or reporting the special channel state information at the first reporting time to reflect that the reported channel state information is invalid, for example, the reported special channel state information may be out of range (OOR). And meanwhile, updating the first reporting time to a second reporting time.

And a reference resource different from the first reference resource exists between the first reporting time and the second reporting time. Specifically, please refer to fig. 2b, where fig. 2b is a schematic diagram of data transmission of an unlicensed frequency band, and the reference resource different from the first reference resource is used by a serving cell serving a UE to preempt the unlicensed frequency band resource between a first reporting time and a second reporting time. If the reference resource of the first reference resource is different between the first reporting time and the second reporting time, it is obvious that the reference resource corresponding to the second channel state information is similar to the reference resource corresponding to the first channel state information, and therefore, the time range between the reference resource corresponding to the second reporting time and the second reporting time may still meet the preset condition. Therefore, in order to ensure the accuracy of the CSI received by the base station, when a reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and a time range between the first reporting time and the second reporting time is smaller than the time threshold, the first reporting time is updated to the second reporting time. That is, the time range between the first reporting time and the second reporting time is smaller than the time threshold, and therefore, the time range between the time at which the reference resource different from the first reference resource is located and the second reporting time is necessarily smaller than the time threshold.

In another embodiment of the present invention, the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second reporting time is located. That is, the time at which the original deterministic reference resource corresponding to RI is located is different from the time at which the original deterministic reference resource corresponding to wideband CQI/PMI is located. It should be noted that, in the embodiment of the present invention, the time at which the reference resource is located may be represented by a time unit at which the reference resource is located; alternatively, the index number of the time unit may be expressed by an index number of the time unit, for example, when the time unit is expressed by a subframe, the index number of the time unit may be a subframe index number. Correspondingly, if the time at which the reference resource is located is represented by the subframe at which the reference resource is located, the different times indicate that the subframes at which the reference resource is located are not the same. If the time of the reference resource is represented by the OFDM symbol of the reference resource, the different times mean that the OFDM symbols are not the same.

S407, the UE reports the first channel state information at the second reporting time.

S408, the base station receives the first channel state information reported by the UE at the second reporting time.

S409, the UE reports the second channel state information at a third reporting time.

S410, the base station receives the second channel state information reported by the UE at the third reporting time.

Referring to fig. 5, an embodiment of the present invention further provides a communication device, which may include: a determining unit 501 and an updating unit 502, wherein:

the determining unit 501 is configured to determine a first reporting time of the first channel state information and a first reference resource corresponding to the first channel state information.

The updating unit 502 is configured to update the reporting time of the first channel state information from the first reporting time to a second reporting time when the time at which the first reference resource is determined to be located by the determining unit 501 meets a preset condition;

Optionally, after the determining unit 501 determines the first reporting time of the first channel state information, the communication device shown in fig. 5 further includes: and a reporting unit, configured to report the first channel state information at the first reporting time.

Optionally, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

Optionally, the second channel state information is channel state information with a priority level inferior to that of the first channel state information.

Optionally, the time at which the first reference resource is located is different from the time at which the second reference resource corresponding to the second channel state information is located.

Optionally, in the updating unit 502, when the time at which the first reference resource is determined by the determining unit 501 to meet the preset condition, after the reporting time of the first channel state information is updated from the first reporting time to a second reporting time, the reporting unit is further configured to report the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

Optionally, after the reporting unit reports the first channel state information at the second reporting time, the reporting unit is further configured to report the second channel state information at a third reporting time; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

Optionally, the reference resource is located in a time period when a serving cell of the communication device transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

It can be understood that the functions of each functional module of the UE in this embodiment may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the relevant description of the foregoing method embodiment, which is not described herein again. Some or all of the functional blocks in the communication device may be implemented by hardware circuits, and some or all of the functional blocks in the communication device may also be implemented by a processor (e.g., a digital signal processor) by executing codes or instructions.

Referring to fig. 6, an embodiment of the present invention further provides a communication device, which may include: a processor 601 and a memory 602; the processor 601 and the memory 602 are coupled by a bus 603. Wherein the processor 601 can execute the following steps by calling the code or instructions in the memory 602:

Optionally, in some possible implementation manners of the present invention, after determining the first reporting time corresponding to the first channel state information, the processor is further configured to:

and reporting the first channel state information at the first reporting time.

Optionally, in some possible implementation manners of the present invention, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

Optionally, in some possible implementation manners of the present invention, the second channel state information is channel state information with a priority next to that of the first channel state information.

Optionally, in some possible implementation manners of the present invention, a time at which the first reference resource is located is different from a time at which the second reference resource corresponding to the second channel state information is located.

Optionally, in some possible implementation manners of the present invention, after the reporting time of the first channel state information is updated from the first reporting time to a second reporting time, the processor is further configured to:

Optionally, in some possible implementation manners of the present invention, after reporting the first channel state information at the second reporting time, the processor is further configured to:

Optionally, in some possible implementation manners of the present invention, the reference resource is located in a time period when a serving cell of the communication device sends data on an unlicensed frequency band;

It can be understood that the functions of each functional module of the communication device in this embodiment may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the relevant description of the foregoing method embodiment, which is not described herein again. Some or all of the functional blocks in the communication device may be implemented by hardware circuits, and some or all of the functional blocks in the communication device may also be implemented by a processor (e.g., a digital signal processor) by executing codes or instructions.

Referring to fig. 7, fig. 7 is a structural diagram of a communication system according to an embodiment of the present invention. As shown in fig. 7, the communication system includes a communication device and a base station, wherein:

In an embodiment, after the communication device determines a first reporting time corresponding to first channel state information according to the channel state parameter information,

In an embodiment, the second reporting time is an original configuration reporting time corresponding to the second channel state information.

In an embodiment, the second channel state information is a channel state information with a priority next to the first channel state information.

In an embodiment, a time at which the first reference resource is located is different from a time at which a second reference resource corresponding to the second channel state information is located.

In an embodiment, after the communication device updates the reporting time of the first channel state information from the first reporting time to a second reporting time, the communication device is further configured to:

In an embodiment, after the communication device reports the first channel state information at the second reporting time, the communication device is further configured to:

In an embodiment, the reference resource is located in a time period when a serving cell of the communication device transmits data on an unlicensed frequency band;

It can be understood that the communication device and the base station included in the communication system of this embodiment may be specifically implemented according to the method in the method embodiment, and the specific implementation process may refer to the relevant description of the method embodiment, which is not described herein again.

It can be seen that, in the embodiment of the present invention, when the time at which the first reference resource corresponding to the first channel state information is located meets the preset condition, the reporting time of the first channel state information is updated from the first reporting time to the second reporting time. Because the reference resource different from the first reference resource exists between the first reporting time and the second reporting time, and the time range between the first reporting time and the second reporting time is smaller than the time threshold, the time range between the time at which the reference resource different from the first reference resource exists and the second reporting time is necessarily smaller than the time threshold, so that the channel state reported by the UE at the updated reporting time is close to the channel state experienced by the UE, the accuracy of the Channel State Information (CSI) received by the base station is ensured, and the data transmission reliability and the data transmission efficiency between the base station and the UE are ensured.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one 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.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An updating method for reporting a time of Channel State Information (CSI) is characterized by comprising the following steps:

2. The method of claim 1, wherein after determining the first reporting time corresponding to the first channel state information, the method further comprises:

and reporting the first channel state information at the first reporting time.

3. The method according to claim 1 or 2, wherein the second reporting time is an original configuration reporting time corresponding to the second csi.

4. The method of claim 3, wherein the second channel state information is a channel state information having a priority next to the first channel state information.

5. The method of claim 3, wherein the first reference resource is located at a different time than a time at which a second reference resource corresponding to the second channel state information is located.

6. The method of claim 4, wherein the first reference resource is located at a different time than a time at which a second reference resource corresponding to the second channel state information is located.

7. The method of claim 3, wherein after the updating the reporting time of the first csi from the first reporting time to a second reporting time, the method further comprises: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

8. The method of claim 4, wherein after the updating the reporting time of the first csi from the first reporting time to a second reporting time, the method further comprises: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

9. The method of claim 5, wherein after the updating the reporting time of the first csi from the first reporting time to a second reporting time, the method further comprises: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

10. The method of claim 6, wherein after the updating the reporting time of the first csi from the first reporting time to a second reporting time, the method further comprises: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

11. The method of claim 7, wherein after reporting the first channel state information at the second reporting time, the method further comprises:

12. The method of claim 8, wherein after reporting the first channel state information at the second reporting time, the method further comprises:

13. The method of claim 9, wherein after reporting the first channel state information at the second reporting time, the method further comprises:

14. The method of claim 10, wherein after reporting the first channel state information at the second reporting time, the method further comprises:

15. The method of claim 1, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

16. The method of claim 2, wherein the reference resource is located in a time period when a serving cell of the User Equipment (UE) transmits data on the unlicensed frequency band;

17. The method of claim 3, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

18. The method of claim 4, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

19. The method of claim 5, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

20. The method of claim 6, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

21. The method of claim 7, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

22. The method of claim 8, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

23. The method of claim 9, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

24. The method of claim 10, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

25. The method of claim 11, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

26. The method of claim 12, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

27. The method of claim 13, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

28. The method of claim 14, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

29. A communication device, comprising:

30. The communications device of claim 29, further comprising:

31. The communications device according to claim 29 or 30, wherein the second reporting time is an original configuration reporting time corresponding to the second csi.

32. The communications device of claim 31, wherein the second channel state information is a channel state information having a priority next to the first channel state information.

33. The apparatus according to claim 31, wherein the first reference resource is located at a different time than a time at which a second reference resource corresponding to the second channel state information is located.

34. The apparatus according to claim 32, wherein the first reference resource is located at a different time than a time at which a second reference resource corresponding to the second channel state information is located.

35. The communication device of claim 31,

the reporting unit is further configured to report the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

36. The communication device of claim 32,

37. The communication device of claim 33,

38. The communication device of claim 34,

39. The communication device of claim 35,

the reporting unit is further configured to report the second channel state information at a third reporting time; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

40. The communication device of claim 36,

41. The communication device of claim 37,

42. The communication device of claim 38,

43. The communications device of claim 29, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

44. The communications device of claim 30, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

45. The communications device of claim 31, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

46. The communications device of claim 32, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

47. The communications device of claim 33, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

48. The communications device of claim 34, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

49. The communications device of claim 35, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

50. The communications device of claim 36, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

51. The communications device of claim 37, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

52. The communications device of claim 38, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

53. The communications device of claim 39, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

54. The communications device of claim 40, wherein the reference resource is located in a time period when a serving cell of the User Equipment (UE) transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

55. The communications device of claim 41, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

56. The communications device of claim 42, wherein the reference resource is located in a time period when a serving cell of the User Equipment (UE) transmits data on an unlicensed frequency band; the reference resource includes a reference signal for measuring channel state information, and the reference signal at least includes any one of: a cell common reference signal CRS, a signal state information reference signal CSI-RS, a demodulation reference signal DMRS and a discovery reference signal DRS.

57. A communication device, comprising:

58. The communications device of claim 57, wherein after determining the first reporting time corresponding to the first channel state information, the processor is further configured to:

and reporting the first channel state information at the first reporting time.

59. The communications device according to claim 57 or 58, wherein the second reporting time is an original configuration reporting time corresponding to the second csi.

60. The communications device of claim 59, wherein said second channel state information is a channel state information having a priority next to said first channel state information.

61. The communications device of claim 59, wherein the first reference resource is located at a different time than a second reference resource corresponding to the second channel state information.

62. The communications device of claim 60, wherein the first reference resource is located at a different time than a time at which a second reference resource corresponding to the second channel state information is located.

63. The communications device of claim 59, wherein after the updating the reporting time of the first CSI from the first reporting time to a second reporting time, the processor is further configured to:

64. The communications device of claim 60, wherein after the updating of the reporting time of the first csi from the first reporting time to the second reporting time, the processor is further configured to:

65. The communications device of claim 61, wherein after the updating of the reporting time of the first CSI from the first reporting time to a second reporting time, the processor is further configured to:

66. The communications device of claim 62, wherein after the updating of the reporting time of the first CSI from the first reporting time to a second reporting time, the processor is further configured to:

67. The communications device of claim 63, wherein after reporting the first channel state information at the second reporting time, the processor is further configured to:

68. The communications device of claim 64, wherein after reporting the first channel state information at the second reporting time, the processor is further configured to:

69. The communications device of claim 65, wherein after reporting the first channel state information at the second reporting time, the processor is further configured to:

70. The communications device of claim 66, wherein after reporting the first channel state information at the second reporting time, the processor is further configured to:

71. The communications device of claim 57, wherein the reference resource is located in a time period when a serving cell of the User Equipment (UE) transmits data on the unlicensed frequency band;

72. The communications device of claim 58, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

73. The communications device of claim 59, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

74. The communications device of claim 60, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

75. The communications device of claim 61, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

76. The communications device of claim 62, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

77. The communications device of claim 63, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

78. The communications device of claim 64, wherein the reference resource is located in a time period when a serving cell of a User Equipment (UE) transmits data on an unlicensed frequency band;

79. The communications device of claim 65, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on the unlicensed frequency band;

80. The communications device of claim 66, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

81. The communications device of claim 67, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

82. The communications device of claim 68, wherein the reference resource is located in a time period when a serving cell of the User Equipment (UE) transmits data on an unlicensed frequency band;

83. The communications device of claim 69, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

84. The communications device of claim 70, wherein the reference resource is located in a time period when a serving cell of the UE transmits data on an unlicensed frequency band;

85. A communication system comprising a communication device and a base station, wherein:

86. The system according to claim 85, wherein after said communication device determines a first reporting time corresponding to a first channel state information according to said channel state parameter information,

87. The system according to claim 85 or 86, wherein said second reporting time is an original configuration reporting time corresponding to the second csi.

88. The system according to claim 87, wherein said second channel state information is a channel state information having a priority next to said first channel state information.

89. The system of claim 87, wherein the first reference resource is located at a different time than a second reference resource corresponding to the second channel state information.

90. The system of claim 88, wherein the first reference resource is located at a different time than a second reference resource corresponding to the second channel state information.

91. The system according to claim 87, wherein after said communication device updates the reporting time of the first channel state information from the first reporting time to a second reporting time, said communication device is further configured to: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

92. The system according to claim 88, wherein after said communication device updates a reporting time of said first channel state information from said first reporting time to a second reporting time, said communication device is further configured to: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

93. The system according to claim 89, wherein after the communication device updates the reporting time of the first channel state information from the first reporting time to a second reporting time, the communication device is further configured to: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

94. The system according to claim 90, wherein after the communication device updates the reporting time of the first channel state information from the first reporting time to a second reporting time, the communication device is further configured to: reporting the first channel state information and the second channel state information at the second reporting time; or reporting the first channel state information at the second reporting time.

95. The system of claim 91, wherein after the communication device reports the first channel state information at the second reporting time, the communication device is further configured to: reporting the second channel state information at a third reporting moment; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

96. The system of claim 92, wherein after the communication device reports the first channel state information at the second reporting time, the communication device is further configured to: reporting the second channel state information at a third reporting moment; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

97. The system of claim 93, wherein after the communication device reports the first channel state information at the second reporting time, the communication device is further configured to: reporting the second channel state information at a third reporting moment; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

98. The system of claim 94, wherein after the communication device reports the first channel state information at the second reporting time, the communication device is further configured to: reporting the second channel state information at a third reporting moment; the third reporting time is the reporting time of the channel state information adjacent to the second reporting time after the second reporting time; or the third reporting time is the original configuration reporting time of third channel state information, and the third channel state information is the channel state information with the same type in an adjacent period after the second channel state information.

99. The system of claim 85, wherein the reference resource is located in a time period when a serving cell of the communication device transmits data on the unlicensed frequency band;

100. The system of claim 86, wherein the reference resource is located in a time period when a serving cell of the communication device transmits data on the unlicensed frequency band;

101. The system of claim 87, wherein the reference resource is located in a time period during which a serving cell of the communication device is transmitting data on the unlicensed frequency band;

102. The system of claim 88, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;

103. The system of claim 89, wherein the reference resource is located in a time period during which a serving cell of the communication device is transmitting data on the unlicensed frequency band;

104. The system of claim 90, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;

105. The system of claim 91, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;

106. The system of claim 92, wherein the reference resource is located in a time period when a serving cell of the communication device transmits data on the unlicensed frequency band;

107. The system of claim 93, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;

108. The system of claim 94, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;

109. The system of claim 95, wherein the reference resource is located in a time period when a serving cell of the communication device transmits data on the unlicensed frequency band;

110. The system of claim 96, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;

111. The system of claim 97, wherein the reference resource is located in a time period when a serving cell of the communication device transmits data on an unlicensed frequency band;

112. The system of claim 98, wherein the reference resource is located in a time period during which a serving cell of the communication device transmits data on the unlicensed frequency band;