CN111294151B

CN111294151B - Channel quality reporting method, base station, user equipment and readable storage medium

Info

Publication number: CN111294151B
Application number: CN201910605172.4A
Authority: CN
Inventors: 周化雨; 杨殷; 张凯; 王琤; 沈兴亚; 张萌; 潘振岗
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2023-07-25
Anticipated expiration: 2039-07-05
Also published as: CN111294151A

Abstract

A channel quality reporting method, a base station, a user equipment and a readable storage medium, wherein the method comprises the following steps: transmitting channel quality reporting indication to user equipment, wherein the channel quality reporting indication is used for indicating the user equipment to report channel quality; and on an uplink channel, receiving the channel quality reported by the user equipment. By adopting the scheme, the link self-adaption can be enhanced, and the system flexibility is improved.

Description

Channel quality reporting method, base station, user equipment and readable storage medium

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a channel quality reporting method, a base station, a user equipment, and a readable storage medium.

Background

In a cellular network communication system, a User Equipment (UE) needs to report channel quality to a base station. The base station adopts a corresponding modulation coding format (Modulation Coding Scheme, MCS) to schedule the UE to transmit and receive data according to the channel quality reported by the user equipment, so as to form a link self-adaptive loop (Loop of Link Adaptation, LLA).

The channel quality reported by the UE can be periodic feedback or aperiodic feedback. In the prior art, periodic feedback is typically on the physical uplink control channel (Physical Uplink Control Channel, PUCCH) and aperiodic feedback is typically on the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

In a narrowband system, the available time-frequency resources are less, and periodic feedback is difficult to perform. However, in the prior art, there is no scheme how to perform aperiodic feedback in a narrowband system.

Disclosure of Invention

The embodiment of the invention solves the problem of aperiodic feedback of channel quality in a narrow-band system.

In order to solve the above technical problems, an embodiment of the present invention provides a channel quality reporting method, including: transmitting channel quality reporting indication to user equipment, wherein the channel quality reporting indication is used for indicating the user equipment to report channel quality; and on an uplink channel, receiving the channel quality reported by the user equipment.

Optionally, the content of the channel quality includes at least one of: channel quality indication, reference signal received power, signal to interference plus noise ratio, and PDCCH repetition number.

Optionally, the receiving the channel quality reported by the ue includes: and receiving the grade of the channel quality, and acquiring the channel quality according to a preset mapping relation between the grade of the channel quality and the channel quality.

Alternatively, when the content of the channel quality is signal-to-interference-and-noise ratio and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RS-SINR +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,63，I _CQI Index value for channel quality class, I _CQI ＝1,…,64，I _CQI =0 indicates no calculation.

Alternatively, when the content of the channel quality is signal-to-interference-and-noise ratio and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RS-SINR 4) +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,59，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

Alternatively, when the content of the channel quality is the reference signal received power and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RSRP +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,97，I _CQI Index value for channel quality class, I _CQI ＝1,…,98，I _CQI =0 indicates no calculation.

Alternatively, when the content of the channel quality is the reference signal received power and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RSRP /6) +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,89，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

Optionally, the method for reporting channel quality further includes: and indicating the user equipment to perform channel quality calculation.

Optionally, the method for reporting channel quality further includes: and indicating an uplink channel required for bearing channel quality to the user equipment.

Optionally, the indicating, to the ue, an uplink channel required for carrying channel quality includes: and indicating an uplink channel required for bearing the channel quality to the user equipment through MAC CE or RRC signaling.

Optionally, the indicating, to the ue, an uplink channel required for carrying channel quality includes: and indicating an uplink channel required for bearing channel quality to the user equipment through one bit of the MAC CE.

Optionally, the indicating, to the ue, an uplink channel required for carrying channel quality includes: and indicating the uplink channels required for bearing the channel quality to the user equipment as a plurality of PUCCHs.

Optionally, the indicating, to the ue, that the uplink channel required for carrying the channel quality is a plurality of PUCCHs includes: and indicating to the user equipment that the number of bits of channel quality carried by a plurality of PUCCHs required for carrying the channel quality is 4.

Optionally, the indicating, to the ue, that the uplink channel required for carrying the channel quality is a plurality of PUCCHs includes: and indicating the number of PUCCHs to the user equipment.

Optionally, the indicating, to the ue, that the uplink channel required for carrying the channel quality is a plurality of PUCCHs includes: and indicating time-frequency position information of a plurality of PUCCHs to the user equipment.

Optionally, the indicating, to the user equipment, time-frequency location information of multiple PUCCHs includes: and indicating the carrier index of each PUCCH in a plurality of PUCCHs to the user equipment.

Optionally, the indicating, to the user equipment, time-frequency location information of multiple PUCCHs includes: and indicating the time delay of each PUCCH and the repetition number of each PUCCH to the user equipment.

Optionally, the channel quality is formed by combining information bits contained in each PUCCH, and each PUCCH contains at least one information bit.

Optionally, the indicating, to the ue, an uplink channel required for carrying channel quality includes: and indicating the uplink channel required for bearing the channel quality to the user equipment as a PUSCH.

Optionally, the indicating, to the user equipment, that an uplink channel required for carrying the channel quality is PUSCH includes: and indicating to the user equipment that the number of bits of the channel quality of the PUSCH carrier required for carrying the channel quality is 7 or 8.

Optionally, the receiving, on the uplink channel, the channel quality reported by the ue includes any one of the following: acquiring the channel quality from the MAC PDU contained in the PUSCH; acquiring the channel quality from the MAC CE contained in the PUSCH; and acquiring the channel quality from the RRC signaling contained in the PUSCH.

The embodiment of the invention also provides a computer readable storage medium which is used for the base station, wherein the computer readable storage medium is a nonvolatile storage medium or a non-transient storage medium, and computer instructions are stored on the computer readable storage medium, and the computer instructions execute the steps of any one of the channel quality reporting methods when running.

The embodiment of the invention also provides a base station, which comprises a memory and a processor, wherein the memory stores computer instructions capable of running on the processor, and the processor executes the steps of any one of the channel quality reporting methods when running the computer instructions.

The embodiment of the invention also provides another channel quality reporting method, which comprises the following steps: acquiring a channel quality reporting instruction, wherein the channel quality reporting instruction is used for indicating to report the channel quality; and reporting the channel quality on an uplink channel.

Optionally, the reporting the channel quality includes: reporting the grade of the channel quality.

Alternatively, when the content of the channel quality is confirmed as signal-to-interference-and-noise ratio and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RS-SINR +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,63，I _CQI Index value for channel quality class, I _CQI ＝1,…,64，I _CQI =0 indicates no calculation.

Alternatively, when the content of the channel quality is confirmed as signal-to-interference-and-noise ratio and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RS-SINR 4) +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,59，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation。

Alternatively, when the content of the channel quality is confirmed as the reference signal received power and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RSRP +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,97，I _CQI Index value for channel quality class, I _CQI ＝1,…,98，I _CQI =0 indicates no calculation.

Alternatively, when the content of the channel quality is confirmed as the reference signal received power and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RSRP /6) +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,89，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

Optionally, the acquiring the channel quality includes: determining a carrier wave for carrying out channel quality calculation according to the received high-layer signaling; or, determining the carrier for channel quality calculation as the carrier of the monitored PDCCH.

Optionally, the method for reporting channel quality further includes: and acquiring an uplink channel required by the quality of the bearer channel.

Optionally, the obtaining the uplink channel required by the bearer channel quality includes: and acquiring an uplink channel required by the quality of the bearer channel through the MAC CE.

Optionally, the obtaining the uplink channel required by the bearer channel quality includes: and acquiring an uplink channel required by the quality of the bearer channel through one bit of the MAC CE.

Optionally, the obtaining the uplink channel required by the bearer channel quality includes: and acquiring uplink channels required for bearing the quality of the bearing channels as a plurality of PUCCHs.

Optionally, the obtaining uplink channels required for carrying the bearer channel quality is multiple PUCCHs, including: the number of bits of channel quality carried by the plurality of PUCCHs is 4.

Optionally, the obtaining uplink channels required for carrying the bearer channel quality is multiple PUCCHs, including: the indicated PUCCH number is obtained, or the PUCCH number is a preset value.

Optionally, the obtaining the uplink channel required by the bearer channel quality includes: and acquiring the time-frequency position information of the indicated multiple PUCCHs.

Optionally, the acquiring time-frequency location information of the plurality of PUCCHs includes: a carrier index for each PUCCH of the plurality of PUCCHs is acquired.

Optionally, the acquiring time-frequency location information of the plurality of PUCCHs includes: the time delay of each PUCCH of the plurality of PUCCHs and the repetition number of each PUCCH are acquired.

Optionally, the obtaining the uplink channel required by the bearer channel quality includes: and acquiring an uplink channel which is required by bearing the quality of the bearing channel as a PUSCH.

Optionally, the obtaining the uplink channel required for carrying the quality of the carrier channel is PUSCH, including: the bit number of the channel quality carried by the PUSCH is 7 or 8.

Optionally, reporting the channel quality on the uplink channel includes any one of the following: reporting the channel quality in the MAC PDU contained in the PUSCH; reporting the channel quality in the MAC CE contained in the PUSCH; and reporting the channel quality in the RRC signaling contained in the PUSCH.

The embodiment of the invention also provides a computer readable storage medium which is used for the user equipment, wherein the computer readable storage medium is a nonvolatile storage medium or a non-transient storage medium, and computer instructions are stored on the computer readable storage medium, and the computer instructions execute the steps of any one of the channel quality reporting methods when running.

The embodiment of the invention also provides the user equipment which comprises a memory and a processor, wherein the memory stores computer instructions which can be operated on the processor, and the processor executes the steps of any one of the channel quality reporting methods when the processor operates the computer instructions.

The embodiment of the invention also provides a base station, which comprises: a transmitting unit, configured to transmit a channel quality reporting instruction to a user equipment, where the channel quality reporting instruction is used to instruct the user equipment to perform channel quality reporting; and the receiving unit is used for receiving the channel quality reported by the user equipment on an uplink channel.

The embodiment of the invention also provides user equipment, which comprises: the first acquisition unit is used for acquiring a channel quality reporting instruction, wherein the channel quality reporting instruction is used for indicating to report the channel quality; and the reporting unit is used for reporting the channel quality on the uplink channel.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

when the channel quality requirement exists, reporting an indication to the downlink channel quality of the user equipment, and indicating an uplink channel required for bearing the channel quality to the user equipment. And receiving the channel quality reported by the user equipment on an uplink channel indicated to the user equipment, thereby realizing aperiodic feedback of the channel quality.

Drawings

Fig. 1 is a flowchart of a channel quality reporting method in an embodiment of the present invention;

fig. 2 is a flowchart of another channel quality reporting method in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.

Detailed Description

In the existing narrowband system, available time-frequency resources are fewer, and periodic feedback is difficult to perform. However, there is no solution in the prior art how to perform aperiodic feedback in a narrowband system.

In the embodiment of the invention, when the channel quality requirement exists, the indication is reported to the downlink channel quality of the user equipment, and the uplink channel required for bearing the channel quality is indicated to the user equipment. And receiving the channel quality reported by the user equipment on an uplink channel indicated to the user equipment, thereby realizing aperiodic feedback of the channel quality.

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

The embodiment of the invention provides a channel quality reporting method, and the method is described in detail through specific steps with reference to fig. 1.

Step S101, reporting the indication to the user equipment downlink channel quality.

In a specific implementation, when the base station has a need to acquire channel quality, the base station may send an indication of channel quality to the ue. In the embodiment of the invention, the channel quality reporting instruction issued by the base station to the user equipment can be used for indicating the user equipment to report the channel quality. That is, when the ue receives the channel quality reporting instruction issued by the base station, the ue may perform the operations of channel quality calculation and reporting.

In implementations, the content of the channel quality may be any one or more of channel quality indication (Channel State Indication, CSI), reference signal received power (Reference Signal Receiving Power, RSRP), signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR), physical downlink control channel (Physical Downlink Control Channel, PDCCH) repetition number.

In other words, in the embodiment of the present invention, the content of the channel quality may be only one of CSI, RSRP, SINR or PDCCH repetition number, or may be two or more of CSI, RSRP, SINR or PDCCH repetition number.

In an implementation, the base station may configure a coverage enhancement level (Coverage Enhancement level, CE level) for the ue in advance, and the ue may select CSI, RSRP, SINR any one or more of PDCCH repetition times according to the preconfigured CE level. The base station may also configure a coverage enhancement mode (Coverage Enhancement mode, CE mode) for the user equipment in advance, and the user equipment may select CSI, RSRP, SINR any one or more of the PDCCH repetition number according to the CE mode.

When the content of the channel quality is RSRP or SINR, since the user equipment has acquired RSRP or SINR when performing radio resource management (Radio Resource Management, RRM) measurement, after receiving the channel quality report instruction, the user equipment can use the acquired RSRP or SINR as the content of the channel quality, without re-calculating the content for acquiring the channel quality, thereby reducing the calculation amount of the user equipment and improving the speed of channel quality feedback.

In a specific implementation, for user equipment at the cell edge, its corresponding RSRP or SINR value may be smaller. If the RSRP or SINR value is reported as the content of the channel quality, the number of bits required is large. For the above scenario, in the embodiment of the present invention, the repetition number of the PDCCH may be reported as the content of the channel quality, so as to effectively avoid that the number of bits required for reporting RSRP or SINR is large.

In a specific implementation, the base station may indicate to the user equipment, through the MAC CE, the content of the channel quality that the user equipment needs to report, or may indicate to the user equipment, through radio resource control (Radio Resource Control, RRC) signaling, the content of the channel quality that the user equipment needs to report. This may increase system flexibility.

Step S102, on the uplink channel, receiving the channel quality reported by the user equipment.

In a specific implementation, the base station may indicate to the user equipment an uplink channel required for reporting the bearer channel quality.

In a specific implementation, after obtaining the channel quality, the ue may report the obtained channel quality to the base station on an uplink channel indicated by the base station.

In a specific implementation, the base station may receive the channel quality reported by the user equipment on an uplink channel indicated to the user equipment, so as to implement aperiodic feedback of the channel quality.

In the embodiment of the invention, when the base station needs the channel quality of the user equipment, the indication can be reported to the downlink channel quality of the user equipment. The user equipment acquires the corresponding channel quality according to the received channel quality reporting instruction and reports the channel quality on an uplink channel indicated by the base station, so that the base station can flexibly indicate the user equipment to report the channel quality according to the requirement and the condition of the uplink channel.

In a specific implementation, if the user equipment directly feeds back the content of the selected channel quality to report, a problem of high feedback overhead of the channel quality may exist. In order to reduce the feedback overhead of the channel quality, in the embodiment of the present invention, a mapping relationship between the channel quality level and the channel quality may be pre-established, and the mapping relationship is known to the base station and the user equipment in advance.

After the user equipment acquires the content with the channel quality, the user equipment can search the channel quality grade corresponding to the acquired content with the channel quality in the mapping relation between the channel quality grade and the channel quality. And then, the user equipment loads the channel quality grade corresponding to the acquired channel quality content on an uplink channel indicated by the base station and reports the channel quality grade to the base station. The base station can receive the grade corresponding to the channel quality sent by the user equipment on the indicated uplink channel, and can acquire the corresponding channel quality according to the mapping relation between the preset channel quality grade and the channel quality.

In a specific implementation, the level corresponding to the channel quality may be indicated by N bits, where N is a positive integer. N bits may indicate 2N levels. For example, 2 bits may be used to indicate 4 levels. Compared with the content corresponding to the channel quality which is directly reported, the feedback overhead can be greatly reduced by only reporting the grade corresponding to the channel quality.

In a specific implementation, when the content of the channel quality is the PDCCH repetition number, the level corresponding to the channel quality may be: optional value of PDCCH repetition number.

In the implementation of the present invention, the grades corresponding to the channel quality can also be presented by code points, and different grades are corresponding to different code points.

In the implementation of the present invention, if the content of the base station indicating the channel quality is SINR, andand the channel quality is represented by 7 or 8 bits (or the number of bits of the channel quality is 7 or 8), then I _CQI ＝I _RS-SINR +1, where I _RS-SINR Index value of SINR, I _RS-SINR ＝0,…,63，I _CQI Index value for channel quality class, I _CQI ＝1,…,64，I _CQI =0 indicates no calculation.

In the implementation of the present invention, if the content of the base station indicating the channel quality is SINR and the channel quality is represented by 4 bits (or the number of bits of the channel quality is 4), then I _CQI ＝floor(I _RS-SINR /4) +1, wherein I _RS-SINR Index value of SINR, I _RS-SINR ＝0,…,59，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation. Wherein floor () is a rounding down operation.

In the implementation of the present invention, if the content of the base station indicating the channel quality is RSPR and the channel quality is represented by 7 or 8 bits (or the number of bits of the channel quality is 7 or 8), then I _CQI ＝I _RSRP +1, where I _RSRP Index value of RSRP, I _RSRP ＝0,…,97，I _CQI Index value for channel quality class, I _CQI ＝1,…,98，I _CQI =0 indicates no calculation.

In the implementation of the present invention, if the content of the base station indicating the channel quality is RSPR and the channel quality is represented by 4 bits (or the number of bits of the channel quality is 4), then I _CQI ＝floor(I _RSRP 6) +1, wherein I _RSRP Index value of RSRP, I _RSRP ＝0,…,89，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

In a specific implementation, the base station may indicate the carriers for performing channel quality calculation to the ue, so that the base station may flexibly control the ue to perform measurement calculation on different carriers. If the base station does not indicate the carrier for channel quality calculation to the user equipment, the user equipment may assume that the carrier of the monitored PDCCH is the carrier for channel quality calculation, so that the user equipment may perform measurement calculation of channel quality during the process of monitoring the PDCCH. The base station indicates the carrier wave for carrying out channel quality calculation to the user equipment, so that the user equipment and the base station can both define the carrier wave corresponding to the channel quality.

In a specific implementation, the base station may indicate an uplink channel required for carrying channel quality to the user equipment through MAC CE, and may also indicate an uplink channel required for carrying channel quality to the user equipment through RRC signaling. The base station indicates the uplink channel required by the bearing channel quality to the user equipment through the MAC CE or the RRC signaling, and does not need to indicate through the PDCCH or modify the PDCCH, so that the complexity of the communication system can be reduced.

In a specific implementation, the base station may indicate an uplink channel required to carry channel quality through 1 bit in the MAC CE. This allows fast switching to select different uplink channels.

In a specific embodiment, the base station may indicate that the uplink channel required to carry the channel quality is PUCCH or PUSCH. This may reduce the overhead of the indication information.

In a specific implementation, the base station may indicate to the user equipment that the uplink channel required to carry the channel quality is PUCCH. The PUCCH is adopted, so that the reliability can be improved, and the time delay of channel quality reporting is reduced.

In a specific implementation, when the base station can indicate to the user equipment that the uplink channel required to carry the channel quality is PUCCH, the channel quality is represented by 4 bits.

In a specific implementation, the number of PUCCHs required to carry channel quality may be multiple, that is, multiple PUCCHs are used to carry channel quality.

In the embodiment of the present invention, the base station may indicate the number of the plurality of PUCCHs to the user equipment, or the number of the plurality of PUCCHs may be a preset value. The flexibility can be improved by adopting the indication mode, and the signaling overhead can be reduced by adopting the preset value mode. When the base station indicates the number of the plurality of PUCCHs to the user equipment, the base station may indicate the number of the plurality of PUCCHs for carrying channel quality through RRC signaling.

In the embodiment of the invention, the base station can indicate the time-frequency position information of a plurality of PUCCHs for bearing channel quality to the user equipment.

In the embodiment of the present invention, the time-frequency location information of the plurality of PUCCHs may include a carrier index of each PUCCH. In a specific embodiment, the base station may indicate the carrier index of each PUCCH by signaling.

In the embodiment of the present invention, the carrier index corresponding to the first PUCCH is (j+1) mod J, where J is the resource of the PUCCH indicated by the PDCCH for ACK/NACK feedback, J is the number of available carriers of the PUCCH, the carrier index corresponding to the second PUCCH is (j+2) mode J, and so on. Here, the PDCCH may be a PDCCH scheduling a PDSCH that carries signaling for indicating an uplink channel required to carry channel quality, such as MAC CE or RRC signaling, etc. Thus, the parameters of the PUCCH indicated by the PDCCH and used for ACK/NACK feedback can be reused, and the signaling overhead is reduced. Wherein mod is modulo or remainder taking operation, amod B is the remainder taking operation of dividing A by B, and the purpose of modulo is to ensure that j+1 or j+2 is not greater than (or equal to) J after modulo, so as to ensure the legality of operation.

In the embodiment of the present invention, the time-frequency location information of the plurality of PUCCHs may include a time delay of each PUCCH and a repetition number of each PUCCH. In a specific embodiment, the base station may indicate the time delay of each PUCCH and the number of repetitions of each PUCCH through signaling.

In the embodiment of the present invention, the time delay corresponding to the first PUCCH is k0+m, the repetition number is M, where k0 is the time delay of the PUCCH for ACK/NACK feedback indicated by the PDCCH, M is the repetition number of the PUCCH for ACK/NACK feedback indicated by the PDCCH, the time delay corresponding to the second PUCCH is k0+2*M, the repetition number is M, and so on. Here, the PDCCH may be a PDCCH scheduling a PDSCH that carries signaling for indicating an uplink channel required to carry channel quality, such as MAC CE or RRC signaling, etc. Thus, the parameters of the PUCCH indicated by the PDCCH and used for ACK/NACK feedback can be reused, and the signaling overhead is reduced.

In the embodiment of the invention, for each PUCCH, there is an information bit corresponding to the PUCCH, and each PUCCH contains at least one information bit. And combining the information bits corresponding to all PUCCHs to obtain the channel quality reported by the user equipment.

In the embodiment of the present invention, the information bit carried by the first PUCCH is the least significant bit (Least Significant Bit, LSB) of the channel quality, and the information bit carried by the first PUCCH is the second least significant bit of the channel quality, and so on.

For example, the base station indicates to the user equipment that the number of PUCCHs for carrying channel quality is 4, the information bit corresponding to the first PUCCH is 1, the information bit corresponding to the second PUCCH is 1, the information bit corresponding to the third PUCCH is 1, and the information bit corresponding to the fourth PUCCH is 0, and then the channel quality reported by the user equipment is 0111.

In a specific implementation, since the channel quality reported by the user equipment may be a level of channel quality, a combination of information bits corresponding to multiple PUCCHs may be a level of channel quality. Therefore, the channel quality reported by the ue is rated 0110. The base station may look up the corresponding channel quality according to 0110.

In a specific implementation, the base station may indicate to the user equipment that an uplink channel required to carry channel quality is PUSCH. The use of PUSCH may increase flexibility, i.e. the base station may select PUSCH transmission resources according to the resource situation.

In a specific implementation, when the base station can indicate to the user equipment that the uplink channel required to carry the channel quality is PUSCH, the channel quality is represented by 7 or 8 bits. Therefore, the PUSCH can bear more bits, and the reporting precision is improved. In a specific implementation, when the base station can indicate to the user equipment that the uplink channel required to carry the channel quality is PUSCH, the channel quality is represented by 6 or 7 or 8 bits. When the channel quality is represented using a 6-bit table, overhead may be more saved.

In the embodiment of the invention, the base station can indicate the time-frequency position information of the PUCSH for bearing the channel quality to the user equipment.

In the embodiment of the present invention, the time-frequency location information of the PUSCH required for carrying the channel quality may include the starting carrier index and the number of carriers of the PUSCH. In a specific embodiment, the base station may indicate the initial carrier index through MAC CE and indicate the number of carriers through RRC signaling. In a specific embodiment, the base station may indicate the initial carrier index through the MAC CE, and indicate the number of carriers through the MAC CE. In a specific embodiment, the base station may indicate the initial carrier index through RRC signaling, and indicate the number of carriers through RRC signaling.

In the embodiment of the present invention, the time-frequency location information of the PUSCH required for carrying the channel quality may include the time delay and the repetition number of the PUSCH. In a specific embodiment, the base station may indicate the time delay through MAC CE and indicate the repetition number of PUSCH through RRC signaling. In a specific embodiment, the base station may indicate the time delay through the MAC CE, and indicate the repetition number of PUSCH through the MAC CE. In a specific embodiment, the base station may indicate the time delay through RRC signaling, and indicate the number of repetitions of PUSCH through RRC signaling.

In the embodiment of the invention, when the base station indicates the PUSCH to the user equipment, the base station can indicate the MCS information of the PUSCH to the user equipment.

In a specific implementation, the channel quality may be carried by a MAC PDU contained in the PUSCH; the base station may obtain channel quality from the MAC PDU contained in the received PUSCH. The channel quality may also be carried by MAC CE contained in PUSCH; the base station may acquire channel quality from the MAC CE contained in the received PUSCH. Channel quality may also be carried by RRC signaling contained in PUSCH; the base station may acquire channel quality from RRC signaling contained in the received PUSCH.

In an implementation, the channel quality may also be encoded as a MAC PDU contained in the PUSCH; and the base station decodes the MAC PDU contained in the received PUSCH to acquire the channel quality. Channel quality may be encoded as MAC CE contained in PUSCH; and the base station decodes the MAC CE contained in the received PUSCH to acquire the channel quality. Channel quality may also be encoded as PUSCH-contained RRC signaling; and the base station decodes the RRC signaling contained in the received PUSCH to acquire the channel quality.

In the embodiment of the invention, when the PUSCH is adopted to bear the channel quality, the PUSCH can bear larger data quantity, so that the channel quality with more bits can be fed back. In addition, the channel quality can be multiplexed with the data on the PUSCH, so that the channel resource utilization rate is improved.

The embodiment of the invention also provides another channel quality reporting method, and the detailed description is given below through specific steps with reference to fig. 2.

Step S201, obtaining a channel quality reporting instruction.

In a specific implementation, when the base station has a need to acquire channel quality, the base station may send an indication of channel quality to the ue. After receiving the channel quality reporting instruction issued by the base station, the ue can perform the operations of channel quality acquisition and reporting, that is, the following steps S202 to S203.

In an implementation, the base station may configure a coverage enhancement level (CoverageEnhancement level, CE level) for the ue in advance, and the ue may select CSI, RSRP, SINR any one or more of PDCCH repetition times according to the preconfigured CE level. The base station may also configure a coverage enhancement mode (Coverage Enhancement mode, CE mode) for the user equipment in advance, and the user equipment may select CSI, RSRP, SINR any one or more of the PDCCH repetition number according to the CE mode.

In the embodiment of the invention, the user equipment can flexibly select more suitable channel quality for reporting aiming at different coverage enhancement degrees or coverage enhancement modes.

In a specific implementation, the base station may indicate to the user equipment, through the MAC CE, the content of the channel quality that the user equipment needs to report, or may indicate to the user equipment, through RRC signaling, the content of the channel quality that the user equipment needs to report. The user equipment can acquire the content of the channel quality to be reported through the MAC CE, and can acquire the content of the channel quality to be reported through the RRC signaling. This may increase system flexibility.

Step S202, calculating the channel quality.

In a specific implementation, after the ue acquires the channel quality report instruction, the ue may perform the operation of channel quality calculation.

In implementations, the base station may indicate the carrier on which the channel quality calculation was made to the user equipment. The base station may also indicate to the ue that the carrier performing channel quality calculation is a carrier corresponding to the PDCCH monitored by the ue. The user equipment can know and calculate the channel quality corresponding to the carriers according to the indication of the base station.

In an implementation, the ue may default the PDCCH carrier currently monitored to be the carrier for performing channel quality calculation.

In a specific implementation, if the ue receives the channel quality report instruction, the ue starts calculating the channel quality in the nth frame, where n is the frame number where the ue finishes receiving the channel quality report instruction. Thus, the user equipment starts to calculate the channel quality only when receiving the indication, and unnecessary calculation is reduced.

In a specific implementation, the ue does not need to report channel quality in the nth frame to the n+kth frame, where n is a frame number where the ue finishes receiving the channel quality report indication, and K is a calculation interval indicated by the higher layer signaling or a preset calculation interval, which takes the frame as a unit. In a specific embodiment, K >4. Therefore, the time interval for calculating and reporting can be reserved for the user equipment, and the situation that the user equipment cannot calculate the channel quality is avoided.

Step S203, reporting the channel quality on an uplink channel.

In a specific implementation, the base station indicates an uplink channel required by the quality of the bearer channel, and the user equipment acquires the uplink channel required by the quality of the bearer channel.

In a specific implementation, the ue may report the acquired channel quality to the base station on an uplink channel indicated by the base station. The base station may receive the channel quality reported by the user equipment on the uplink channel indicated to the user equipment, thereby implementing aperiodic feedback of the channel quality.

In a specific implementation, the base station may indicate an uplink channel required for carrying channel quality to the user equipment through the MAC CE, and the user equipment may determine the uplink channel required for carrying channel quality through the MAC CE issued by the base station. The base station can also indicate the uplink channel required by the bearer channel quality to the user equipment through the RRC signaling, and the user equipment can determine the uplink channel required by the bearer channel quality through the RRC signaling issued by the base station. Thus, the PDCCH is not required to be indicated and modified, so that the complexity of a communication system can be reduced.

In a specific implementation, the base station may indicate an uplink channel required for carrying channel quality to the user equipment through one bit of the MAC CE, and the user equipment may determine the uplink channel required for carrying channel quality through one bit of the MAC CE issued by the base station. In a specific embodiment, an uplink channel required to carry channel quality may select one from PUCCH and PUSCH. This may reduce the overhead of the indication information.

In a specific implementation, the base station may indicate that the uplink channel required to carry the channel quality is PUCCH. The ue may acquire an uplink channel required to carry channel quality as PUCCH. The PUCCH is adopted, so that the reliability can be improved, and the time delay of channel quality reporting is reduced.

In the embodiment of the present invention, the base station may indicate the number of the plurality of PUCCHs to the user equipment, or the number of the plurality of PUCCHs may be a preset value. The flexibility can be improved by adopting the indication mode, and the signaling overhead can be reduced by adopting the preset value mode. The user equipment may obtain the number of the plurality of PUCCHs according to the indication or the preset value of the base station, so as to further obtain the uplink channel required for carrying the channel quality according to the time-frequency location information of the PUCCHs.

In the embodiment of the invention, the base station can indicate the time-frequency position information of a plurality of PUCCHs for bearing channel quality to the user equipment. The user equipment can obtain the time-frequency position information of each PUCCH according to the indication of the base station, thereby obtaining the uplink channel required by bearing the channel quality.

The time-frequency location information of the plurality of PUCCHs may be a starting carrier index. In a specific embodiment, the user equipment may acquire the carrier index of each PUCCH through signaling.

In the embodiment of the present invention, the carrier index corresponding to the first PUCCH is (j+1) mod J, where J is the resource of PUCCH indicated by PDCCH for ACK/NACK feedback, J is the number of available carriers of PUCCH, the carrier index corresponding to the second PUCCH is (j+2) mod J, and so on. Here, the PDCCH may be a PDCCH scheduling a PDSCH that carries signaling for indicating an uplink channel required to carry channel quality, such as MAC CE or RRC signaling, etc. Thus, the parameters of the PUCCH indicated by the PDCCH and used for ACK/NACK feedback can be reused, and the signaling overhead is reduced. Wherein mod is modulo or remainder taking operation, amod B is the remainder taking operation of dividing A by B, and the purpose of modulo is to ensure that j+1 or j+2 is not greater than (or equal to) J after modulo, so as to ensure the legality of operation.

The time-frequency location information of the plurality of PUCCHs may include a time delay of each PUCCH and a repetition number of each PUCCH. In a specific embodiment, the user equipment may acquire the time delay of each PUCCH and the repetition number of each PUCCH through signaling.

For each PUCCH there is an information bit corresponding thereto, each PUCCH containing at least one information bit. And combining the information bits corresponding to all PUCCHs to obtain the channel quality reported by the user equipment.

In the embodiment of the present invention, the information bit carried by the first PUCCH is the least significant bit (Least Significant Bit, LSB) of the channel quality, and the information bit carried by the second PUCCH is the second least significant bit of the channel quality, and so on.

In a specific implementation, since the channel quality reported by the ue may be a level corresponding to the channel quality, a combination of information bits corresponding to multiple PUCCHs may be a level corresponding to the channel quality. Therefore, the grade corresponding to the channel quality reported by the user equipment is 0110. The base station may look up the corresponding channel quality according to 0110.

In a specific implementation, the base station may indicate that the uplink channel required to carry the channel quality is PUSCH. The user equipment may acquire an uplink channel required for carrying channel quality as PUSCH. The use of PUSCH may increase flexibility, i.e. the base station may select PUSCH transmission resources according to the resource situation.

In a specific implementation, when the uplink channel required for the user equipment to acquire the bearer channel quality is PUSCH, the channel quality is represented by 7 or 8 bits. Therefore, the PUSCH can bear more bits, and the reporting precision is improved. In a specific implementation, when the uplink channel required for the user equipment to acquire the bearer channel quality is PUSCH, the channel quality is represented by 6 or 7 or 8 bits. The use of 6 bits may save more overhead.

In the embodiment of the invention, the base station can indicate the time-frequency position information of the PUSCH to the user equipment. The user equipment can acquire corresponding PUSCH time-frequency position information according to the indication of the base station.

In the embodiment of the present invention, the time-frequency location information of the PUSCH required for carrying the channel quality may be the starting carrier index and the number of carriers of the PUSCH. In a specific embodiment, the ue may indicate to acquire the initial carrier index through MAC CE, and instruct to acquire the number of carriers through RRC signaling. In a specific embodiment, the user equipment may obtain the initial carrier index through the MAC CE indication, and obtain the number of carriers through the MAC CE indication. In a specific embodiment, the ue may instruct to acquire the initial carrier index through RRC signaling, and acquire the number of carriers through RRC signaling.

In the embodiment of the present invention, the time-frequency location information of the PUSCH required for carrying the channel quality may be the time delay and the repetition number of the PUSCH. In a specific embodiment, the ue may indicate the acquisition time delay through MACCE, and indicate the number of repetitions of PUSCH acquisition through RRC signaling. In a specific embodiment, the user equipment may indicate the acquisition time delay through the MAC CE, and indicate the number of repetitions of PUSCH acquisition through the MAC CE. In a specific embodiment, the ue may instruct to acquire the time delay through RRC signaling, and acquire the number of repetitions of PUSCH through RRC signaling.

In a specific implementation, the channel quality may be carried by a MAC PDU contained in the PUSCH; the base station may obtain channel quality from the MAC PDU contained in the received PUSCH. The channel quality may be carried by the MAC CE contained in the PUSCH; the base station may acquire channel quality from the MAC CE contained in the received PUSCH. Channel quality may also be carried by RRC signaling contained in PUSCH; the base station may acquire channel quality from RRC signaling contained in the received PUSCH.

In an implementation, the channel quality may also be encoded as a MAC PDU contained in the PUSCH; and the base station decodes the MAC PDU contained in the received PUSCH to acquire the channel quality. Channel quality may also be encoded as MAC CE contained in PUSCH; and the base station decodes the MAC CE contained in the received PUSCH to acquire the channel quality. Channel quality may also be encoded as PUSCH-contained RRC signaling; and the base station decodes the RRC signaling contained in the received PUSCH to acquire the channel quality.

In the implementation of the present invention, if the user equipment confirms that the content of the channel quality is SINR and the channel quality is represented by 7 or 8 bits (or the number of bits of the channel quality is 7 or 8), then I _CQI ＝I _RS-SINR +1, where I _RS-SINR Index value of SINR, I _RS-SINR ＝0,…,63，I _CQI Index value for channel quality class, I _CQI ＝1,…,64，I _CQI =0 indicates no calculation.

In the implementation of the present invention, if the user equipment confirms that the content of the channel quality is SINR, and the channel quality is represented by 4 bits (orThe number of bits of the channel quality is 4), then I _CQI ＝floor(I _RS-SINR /4) +1, wherein I _RS-SINR Index value of SINR, I _RS-SINR ＝0,…,59，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

In the implementation of the present invention, if the content of the channel quality is confirmed by the user equipment to be RSPR and the channel quality is represented by 7 or 8 bits (or the bit number of the channel quality is 7 or 8), then I _CQI ＝I _RSRP +1, where I _RSRP Index value of RSRP, I _RSRP ＝0,…,97，I _CQI Index value for channel quality class, I _CQI ＝1,…,98，I _CQI =0 indicates no calculation.

In the implementation of the present invention, if the user equipment confirms that the content of the channel quality is RSPR and the channel quality is represented by 4 bits (or the number of bits of the channel quality is 4), then I _CQI ＝floor(I _RSRP 6) +1, wherein I _RSRP Index value of RSRP, I _RSRP ＝0,…,89，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

The embodiment of the present invention also provides a base station 30, including: a transmitting unit 301 and a receiving unit 302, wherein:

a transmitting unit 301, configured to transmit a channel quality reporting indication to a user equipment, where the channel quality reporting indication is used to instruct the user equipment to report channel quality;

and the receiving unit 302 is configured to receive, on an uplink channel, channel quality reported by the ue.

In specific implementation, reference may be made to step S101 to step S102 for specific description of specific implementation and beneficial effects of the base station 30, which are not described herein.

Referring to fig. 4, an embodiment of the present invention further provides a user equipment 40, including: a first acquisition unit 401, a second acquisition unit 402, and a reporting unit 403, wherein:

a first obtaining unit 401, configured to obtain a channel quality reporting instruction, where the channel quality reporting instruction is used to instruct to report channel quality;

A second acquisition unit 402, configured to calculate the channel quality;

and the reporting unit 403 is configured to report the channel quality on an uplink channel.

In specific implementation, specific descriptions about specific implementations and beneficial effects of the ue 40 may refer to steps S201 to S203, which are not described herein.

The embodiment of the invention also provides a computer readable storage medium which is used for the base station, wherein the computer readable storage medium is a nonvolatile storage medium or a non-transient storage medium, and computer instructions are stored on the computer readable storage medium, and the steps of the channel quality reporting method from the step S101 to the step S102 are executed when the computer instructions run.

The embodiment of the invention also provides a base station, which comprises a memory and a processor, wherein the memory stores computer instructions capable of running on the processor, and the processor executes the steps of the channel quality reporting method from S101 to S102 when running the computer instructions.

The embodiment of the invention also provides a computer readable storage medium for the user equipment, wherein the computer readable storage medium is a nonvolatile storage medium or a non-transient storage medium, and computer instructions are stored on the computer readable storage medium, and the computer instructions execute the steps of the channel quality reporting method in the steps S201 to S203 when running.

The embodiment of the invention also provides the user equipment, which comprises a memory and a processor, wherein the memory stores computer instructions capable of running on the processor, and the processor executes the steps of the channel quality reporting method from S201 to S203 when running the computer instructions.

The technical scheme of the invention can be applied to 5G (5 Generation) communication systems, 4G and 3G communication systems, and also can be applied to various new communication systems in the future, such as 6G, 7G and the like.

The technical scheme of the invention is also applicable to different network architectures, including but not limited to a relay network architecture, a dual link architecture, a Vehicle-to-evaluation architecture and the like.

The Core Network in the embodiment of the invention can be an evolved packet Core Network (evolved packet Core, EPC for short), a 5G Core Network (5G Core Network), or a novel Core Network in a future communication system. The 5G Core Network is composed of a set of devices, and implements an access and mobility management function (Access and Mobility Management Function, AMF) for mobility management and the like, a user plane function (User Plane Function, UPF) for providing packet routing forwarding and QoS (Quality of Service) management and the like, a session management function (Session Management Function, SMF) for providing session management, IP address allocation and management and the like. The EPC may be composed of an MME providing functions of mobility management, gateway selection, etc., a Serving Gateway (S-GW) providing functions of packet forwarding, etc., a PDN Gateway (P-GW) providing functions of terminal address allocation, rate control, etc.

A Base Station (BS) in an embodiment of the present invention, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, the device for providing a base station function in the 2G network includes a base Radio transceiver station (base transceiver station, abbreviated as BTS), the device for providing a base station function in the 3G network includes a node B (NodeB), the device for providing a base station function in the 4G network includes an evolved NodeB (eNB), the device for providing a base station function in the wireless local area network (wireless local area networks, abbreviated as WLAN) is an Access Point (AP), the device for providing a base station function in the 5G New Radio (NR) is a gNB, and the node B (ng-eNB) that continues to evolve, wherein the gNB and the terminal communicate using NR technology, the ng-eNB and the terminal communicate using E-UTRA (Evolved Universal Terrestrial Radio Access) technology, and both the gNB and the ng-eNB can be connected to the 5G core network. The base station in the embodiment of the invention also comprises equipment and the like for providing the function of the base station in a new communication system in the future.

The base station controller in the embodiment of the present invention is a device for managing base stations, for example, a base station controller (base station controller, abbreviated as BSC) in a 2G network, a radio network controller (radio network controller, abbreviated as RNC) in a 3G network, and may also refer to a device for controlling and managing base stations in a new communication system in the future.

The network side network in the embodiment of the invention refers to a communication network for providing communication service for a terminal, and comprises a base station of a wireless access network, a base station controller of the wireless access network, and equipment of a core network side.

A terminal in an embodiment of the present invention may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., which the embodiments of the present invention are not limited to.

The embodiment of the invention defines a unidirectional communication link from an access network to a terminal as a downlink, wherein data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; and the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called as uplink direction.

It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In this context, the character "/" indicates that the front and rear associated objects are an "or" relationship.

The term "plurality" as used in the embodiments of the present invention means two or more.

The first, second, etc. descriptions in the embodiments of the present invention are only used for illustrating and distinguishing the description objects, and no order is used, nor is the number of the devices in the embodiments of the present invention limited, and no limitation on the embodiments of the present invention should be construed.

The "connection" in the embodiment of the present invention refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in the embodiment of the present invention.

It should be appreciated that in the embodiment of the present invention, the processor may be a central processing unit (central processing unit, abbreviated as CPU), and the processor may also be other general purpose processors, digital signal processors (digital signal processor, abbreviated as DSP), application specific integrated circuits (application specific integrated circuit, abbreviated as ASIC), off-the-shelf programmable gate arrays (field programmable gate array, abbreviated as FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be appreciated that the memory in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically erasable ROM (electrically EPROM, EEPROM), or a flash memory. The volatile memory may be a random access memory (random access memory, RAM for short) which acts as an external cache. By way of example but not limitation, many forms of random access memory (random access memory, abbreviated as RAM) are available, such as static random access memory (static RAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, abbreviated as DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus random access memory (direct rambus RAM, abbreviated as DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus, and system may be implemented in other manners. For example, the device embodiments described above are merely illustrative; for example, the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may be physically included separately, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A method for reporting channel quality, comprising:

transmitting channel quality reporting indication to user equipment, wherein the channel quality reporting indication is used for indicating the user equipment to report channel quality;

indicating an uplink channel required for bearing channel quality to the user equipment;

on the uplink channel, receiving channel quality reported by the user equipment; the content of the channel quality includes at least one of: reference signal received power, signal-to-interference-and-noise ratio; the receiving the channel quality reported by the user equipment comprises the following steps: and receiving the grade of the channel quality, and acquiring the channel quality according to the mapping relation between the preset grade of the channel quality and the content of the channel quality.

2. The channel quality reporting method as claimed in claim 1, wherein when the content of the channel quality is a signal-to-interference-and-noise ratio and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RS-SINR +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,63，I _CQI Index value for channel quality class, I _CQI ＝1,…,64，I _CQI =0 indicates no calculation.

3. The channel quality reporting method as claimed in claim 1, wherein when the content of the channel quality is a signal-to-interference-and-noise ratio and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RS-SINR 4) +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,59，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

4. The channel quality reporting method as claimed in claim 1, wherein when the content of the channel quality is a reference signal received power and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RSRP +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,97，I _CQI Index value for channel quality class, I _CQI ＝1,…,98，I _CQI =0 indicates no calculation.

5. The channel quality reporting method as claimed in claim 1, wherein when the content of the channel quality is a reference signal received power and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RSRP /6) +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,89，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

6. The channel quality reporting method of claim 1, further comprising: and indicating the user equipment to perform channel quality calculation.

7. The method for reporting channel quality of claim 1, wherein the indicating the uplink channel required for carrying channel quality to the ue comprises:

and indicating an uplink channel required for bearing the channel quality to the user equipment through MAC CE or RRC signaling.

8. The method for reporting channel quality of claim 1, wherein the indicating the uplink channel required for carrying channel quality to the ue comprises:

and indicating an uplink channel required for bearing channel quality to the user equipment through one bit of the MAC CE.

9. The method for reporting channel quality of claim 1, wherein the indicating the uplink channel required for carrying channel quality to the ue comprises:

and indicating the uplink channels required for bearing the channel quality to the user equipment as a plurality of PUCCHs.

10. The method for reporting channel quality of claim 9, wherein the indicating to the user equipment that the uplink channel required for carrying the channel quality is a plurality of PUCCHs comprises:

and indicating to the user equipment that the number of bits of channel quality carried by a plurality of PUCCHs required for carrying the channel quality is 4.

11. The method for reporting channel quality of claim 9, wherein the indicating to the user equipment that the uplink channel required for carrying the channel quality is a plurality of PUCCHs comprises:

and indicating the number of PUCCHs to the user equipment.

12. The method for reporting channel quality of claim 9, wherein the indicating to the user equipment that the uplink channel required for carrying the channel quality is a plurality of PUCCHs comprises: and indicating time-frequency position information of a plurality of PUCCHs to the user equipment.

13. The channel quality reporting method of claim 12, wherein the indicating time-frequency location information of a plurality of PUCCHs to the user equipment comprises:

and indicating the carrier index of each PUCCH in a plurality of PUCCHs to the user equipment.

14. The channel quality reporting method of claim 12, wherein the indicating time-frequency location information of a plurality of PUCCHs to the user equipment comprises:

And indicating the time delay of each PUCCH and the repetition number of each PUCCH to the user equipment.

15. The channel quality reporting method of claim 9, wherein the channel quality is combined from information bits contained in each PUCCH, each PUCCH containing at least one information bit.

16. The method for reporting channel quality of claim 1, wherein the indicating the uplink channel required for carrying channel quality to the ue comprises:

and indicating the uplink channel required for bearing the channel quality to the user equipment as a PUSCH.

17. The method for reporting channel quality of claim 16, wherein the indicating to the user equipment that the uplink channel required for carrying the channel quality is PUSCH comprises:

and indicating to the user equipment that the number of bits of the channel quality of the PUSCH carrier required for carrying the channel quality is 7 or 8.

18. The channel quality reporting method of claim 16, wherein receiving the channel quality reported by the ue on an uplink channel comprises any one of:

acquiring the channel quality from the MAC PDU contained in the PUSCH;

Acquiring the channel quality from the MAC CE contained in the PUSCH;

and acquiring the channel quality from the RRC signaling contained in the PUSCH.

19. A method for reporting channel quality, comprising:

acquiring a channel quality reporting instruction, wherein the channel quality reporting instruction is used for indicating to report the channel quality; acquiring an uplink channel required by the quality of a bearing channel;

reporting channel quality on the uplink channel; the content of the channel quality includes at least one of: reference signal received power, signal-to-interference-and-noise ratio; the reporting channel quality includes: and reporting the grade of the channel quality according to a preset.

20. The channel quality reporting method as claimed in claim 19, wherein when the content of the channel quality is confirmed to be a signal-to-interference-and-noise ratio and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RS-SINR +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,63，I _CQI Index value for channel quality class, I _CQI ＝1,…,64，I _CQI =0 indicates no calculation.

21. The channel quality reporting method as claimed in claim 19, wherein when the content of the channel quality is confirmed as a signal-to-interference-and-noise ratio and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RS-SINR 4) +1, wherein: i _RS-SINR Index value for signal-to-interference-and-noise ratio, I _RS-SINR ＝0,…,59，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

22. The channel quality reporting method as claimed in claim 19, wherein when the content of the channel quality is confirmed to be a reference signal received power and the channel quality is represented by 7 or 8 bits, I _CQI ＝I _RSRP +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,97，I _CQI Index value for channel quality class, I _CQI ＝1,…,98，I _CQI =0 indicates no calculation.

23. The channel quality reporting method as claimed in claim 19, wherein when the content of the channel quality is confirmed to be a reference signal received power and the channel quality is represented by 4 bits, I _CQI ＝floor(I _RSRP /6) +1, wherein: i _RSRP Index value for reference signal received power, I _RSRP ＝0,…,89，I _CQI Index value for channel quality class, I _CQI ＝1,…,15，I _CQI =0 indicates no calculation.

24. The method for reporting channel quality of claim 19, wherein the obtaining channel quality comprises:

determining a carrier wave for carrying out channel quality calculation according to the received high-layer signaling;

or, determining the carrier for channel quality calculation as the carrier of the monitored PDCCH.

25. The method for reporting channel quality as claimed in claim 19, wherein the obtaining the uplink channel required for carrying the channel quality comprises:

And acquiring an uplink channel required by the quality of the bearer channel through MAC CE or RRC signaling.

26. The method for reporting channel quality as claimed in claim 19, wherein the obtaining the uplink channel required for carrying the channel quality comprises:

and acquiring an uplink channel required by the quality of the bearer channel through one bit of the MAC CE.

27. The method for reporting channel quality as claimed in claim 19, wherein the obtaining the uplink channel required for carrying the channel quality comprises:

and acquiring uplink channels required for bearing the quality of the bearing channels as a plurality of PUCCHs.

28. The method for reporting channel quality of claim 27, wherein the obtaining uplink channels required for carrying the bearer channel quality is a plurality of PUCCHs, comprising:

the number of bits of channel quality carried by the plurality of PUCCHs is 4.

29. The method for reporting channel quality of claim 27, wherein the obtaining uplink channels required for carrying the bearer channel quality is a plurality of PUCCHs, comprising:

the indicated PUCCH number is obtained, or the PUCCH number is a preset value.

30. The method for reporting channel quality as claimed in claim 27, wherein the obtaining the uplink channel required for carrying the channel quality comprises: and acquiring the time-frequency position information of the indicated multiple PUCCHs.

31. The method for reporting channel quality of claim 30, wherein the obtaining time-frequency location information of the plurality of PUCCHs comprises:

a carrier index for each PUCCH of the plurality of PUCCHs is acquired.

32. The method for reporting channel quality of claim 30, wherein the obtaining time-frequency location information of the plurality of PUCCHs comprises:

the time delay of each PUCCH of the plurality of PUCCHs and the repetition number of each PUCCH are acquired.

33. The channel quality reporting method of claim 27, wherein the channel quality is combined from information bits contained in each PUCCH, each PUCCH containing at least one information bit.

34. The method for reporting channel quality as claimed in claim 19, wherein the obtaining the uplink channel required for carrying the channel quality comprises:

and acquiring an uplink channel which is required by bearing the quality of the bearing channel as a PUSCH.

35. The method for reporting channel quality of claim 34, wherein the obtaining the PUSCH as the uplink channel required for carrying the bearer channel quality comprises:

the bit number of the channel quality carried by the PUSCH is 7 or 8.

36. The channel quality reporting method of claim 34, wherein reporting the channel quality on the uplink channel comprises any one of:

Reporting the channel quality in the MAC PDU contained in the PUSCH;

reporting the channel quality in the MAC CE contained in the PUSCH;

and reporting the channel quality in the RRC signaling contained in the PUSCH.

37. A base station, comprising:

the issuing unit is used for reporting the indication to the quality of the issuing channel of the user equipment; the channel quality reporting instruction is used for indicating the user equipment to report the channel quality;

an indication unit, configured to indicate an uplink channel required for carrying channel quality to the ue;

a receiving unit, configured to receive, on the uplink channel, channel quality reported by the user equipment; the content of the channel quality includes at least one of: reference signal received power, signal-to-interference-and-noise ratio; the receiving the channel quality reported by the user equipment comprises the following steps: and receiving the grade of the channel quality, and acquiring the channel quality according to the mapping relation between the preset grade of the channel quality and the content of the channel quality.

38. A user device, comprising:

the first acquisition unit is used for acquiring a channel quality reporting instruction; the channel quality reporting instruction is used for indicating to report the channel quality;

A second obtaining unit, configured to obtain an uplink channel required by the quality of the bearer channel;

the reporting unit is used for reporting the channel quality on an uplink channel; the content of the channel quality includes at least one of: reference signal received power, signal-to-interference-and-noise ratio; the reporting channel quality includes: reporting the grade of the channel quality according to the mapping relation between the preset grade of the channel quality and the content of the channel quality.

39. A computer readable storage medium for a base station, the computer readable storage medium being a non-volatile storage medium or a non-transitory storage medium, having stored thereon computer instructions, which when executed by a processor perform the steps of the channel quality reporting method of any of claims 1 to 18.

40. A computer readable storage medium for a user equipment, the computer readable storage medium being a non-volatile storage medium or a non-transitory storage medium, having stored thereon computer instructions, which when executed by a processor perform the steps of the channel quality reporting method of any of claims 19 to 36.

41. A base station comprising a memory and a processor, said memory having stored thereon computer instructions executable on said processor, wherein said processor, when executing said computer instructions, performs the steps of the channel quality reporting method of any of claims 1 to 18.

42. A user equipment comprising a memory and a processor, said memory having stored thereon computer instructions executable on said processor, wherein said processor executes the steps of the channel quality reporting method of any of claims 19 to 36 when said computer instructions are executed.