CN103326815A - Processing method, device and system for channel quality indicator - Google Patents

Abstract

A channel quality indication CQI processing method, device, and system, relating to the field of communication, in an application scenario where a user equipment can only receive reference signals on some system frequency bands within a scheduling interval TTI, CQI measurement and feedback of UEs are realized, The scope of use of UE's CQI measurement and feedback is expanded. The method includes: according to the preset measurement gap, the UE calculates the CQI after measuring the reference signal on the designated non-current resident subband in the measurement gap, and feeds back the calculated CQI to the base station; the measurement gap is before the opportunity to feed back the CQI any specified period of time, and the base station will not schedule downlink on the subband where the UE is currently camping during the measurement gap; where the UE’s camping subband refers to the dedicated working frequency band selected by the UE when it initially accesses, or not The base station needs to specify the working frequency band when the UE receives downlink data by default. The embodiments of the present invention are used for CQI measurement and feedback in the above scenario.

Description

A channel quality indicator CQI processing method, device and system

technical field

The present invention relates to the communication field, in particular to a channel quality indicator (CQI) processing method, device and system.

Background technique

In the 3GPP Long Term Evolution (LTE for short) system, the principle and process of UE (User Equipment, user terminal) feeding back CQI (Channel Quality Indicator, channel quality indicator) is: Frequency signal measurement, periodic/aperiodic selection of PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel)/PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) feedback CQI measurement report, the network side according to the CQI measurement report fed back by the UE and combined with the current Depending on the network resource situation, it is determined whether it is necessary to adjust the UE's modulation method, resource allocation, and MIMO (Multiple Input Multiple Output, Multiple Input Multiple Output) related configuration.

CQI is the measurement value of the UE in the frequency domain within a certain period of time. It gives the transmission function of the UE in the process of demodulating the PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel, Physical Downlink Shared Channel) subframe. The index value corresponding to the code rate (that is, the data transmission capability supported by the UE).

The CQI feedback method in the existing LTE system is the definition of the CQI feedback method for the broadband UE, but in the prior art, the narrowband UE can only receive and measure the CQI on the dedicated subband in one subframe, so the CQI feedback of the broadband UE The method cannot be applied to the CQI feedback of the narrowband UE, but the CQI feedback method for the narrowband UE has not been defined in the prior art.

Contents of the invention

Embodiments of the present invention provide a channel quality indicator CQI processing method, device and system, in an application scenario where a user equipment can only receive reference signals on some system frequency bands within a transmission time interval (Transmission Time Interval, TTI for short), The CQI measurement and feedback of the user equipment are realized, and the application range of the CQI measurement and feedback of the user equipment is expanded.

Embodiments of the invention adopt the following technical solutions:

On the one hand, an embodiment of the present invention provides a CQI processing method, the method is applied to a user equipment UE that can only receive reference signals on some system frequency bands within a scheduling interval TTI, and the method includes:

According to the preset measurement gap, the UE calculates the CQI after measuring the reference signal on the specified non-current resident subband in the measurement gap, and feeds back the calculated CQI to the base station;

The measurement gap is any specified time period before the opportunity to feed back the CQI, and within the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camping; wherein, the UE's camping The subband refers to the dedicated working frequency band selected by the UE when it initially accesses, or the working frequency band when the UE receives downlink data by default without special instructions from the base station.

On the one hand, an embodiment of the present invention provides a CQI processing device, including:

The first measurement unit is configured to calculate the CQI after measuring a reference signal on a designated non-current resident subband within the measurement gap according to a preset measurement gap;

a first feedback unit, configured to feed back the calculated CQI to the base station;

The measurement gap is any specified time period before the opportunity to feed back the CQI, and within the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camping; wherein, the UE's camping The subband refers to the dedicated working frequency band selected by the UE when it initially accesses, or the working frequency band when the UE receives downlink data by default without special instructions from the base station.

On the one hand, an embodiment of the present invention provides a CQI processing system, including: a UE and a base station, wherein,

The UE is used to calculate the CQI after measuring the reference signal on the specified non-current resident subband in the measurement gap according to the preset measurement gap, and feed back the calculated CQI to the base station; the measurement gap is Any specified period of time before the opportunity to feed back the CQI, and within the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camped; where the UE's camped subband refers to the UE The dedicated working frequency band selected during initial access, or the default working frequency band when the UE receives downlink data without special instructions from the base station;

The base station is used to receive the CQI of the reference signal on the specified non-current resident subband measured in the measurement gap according to the preset measurement gap fed back by the UE; the measurement gap is any time before the feedback CQI opportunity A specified time period, and within the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camped; where the UE's camped subband refers to the UE selected when it initially accesses A dedicated working frequency band, or a default working frequency band when the UE receives downlink data without special instructions from the base station.

On the one hand, an embodiment of the present invention provides a CQI processing method, the method is applied to a user equipment UE that can only receive reference signals on some system frequency bands within a scheduling interval TTI, and the method includes:

The UE measures the CQI of the reference signal on the system broadband control channel resource domain and feeds it back to the base station; wherein, the system broadband control channel resource domain refers to the entire system bandwidth in the frequency domain and the first several orthogonal frequency domains in the time domain. Resource field for multiplexing OFDM symbols.

On the one hand, an embodiment of the present invention provides a CQI processing device, including:

The second measurement unit is used to measure the CQI of the reference signal on the system broadband control channel resource domain;

The second feedback unit is configured to feed back the measured CQI of the reference signal on the system broadband control channel resource domain to the base station;

Wherein, the system broadband control channel resource domain refers to the resource domain that occupies the entire system bandwidth in the frequency domain and occupies the first several OFDM symbols in the time domain.

On the one hand, an embodiment of the present invention provides a CQI processing system, including: a UE and a base station, wherein,

The UE is used to measure the CQI of the reference signal on the system broadband control channel resource domain and feed it back to the base station; wherein, the system broadband control channel resource domain refers to the frequency domain occupying the entire system bandwidth, and the time domain occupying the first few Orthogonal frequency division multiplexing OFDM symbol resource field;

The base station is used to receive the CQI of the reference signal in the measurement system broadband control channel resource domain fed back by the UE; wherein, the system broadband control channel resource domain refers to the frequency domain occupying the entire system bandwidth, and the time domain occupying the first several regular The resource domain of OFDM symbols for cross-frequency division multiplexing.

On the one hand, an embodiment of the present invention provides a CQI processing method, the method is applied to a user equipment UE that can only receive reference signals on some system frequency bands within a scheduling interval TTI, and the method includes:

After the UE measures the reference signal on the current resident subband in the non-measurement gap and the specified non-current subband reference signal in the measurement gap, it calculates the CQI of the reference signal on the current resident subband and the specified The CQI of the reference signal on the non-current subband, and feed back the calculated CQI of the reference signal on the current resident subband and the CQI of the specified non-current subband reference signal to the base station;

The measurement gap is any specified period of time before the opportunity to feed back the CQI, and the base station will not schedule downlink on the subband where the UE is currently camping within the measurement gap; wherein, the UE's camping subband The band refers to the dedicated working frequency band selected when the UE initially accesses, or the default working frequency band when the UE receives downlink data without special instructions from the base station.

On the one hand, an embodiment of the present invention provides a CQI processing device, including:

The third measurement unit is used to measure the reference signal on the current resident sub-band in the non-measurement gap and measure the reference signal on the specified non-current sub-band in the measurement gap, respectively calculate the reference signal on the current resident sub-band CQI and the CQI of the reference signal on the specified non-current subband;

A third feedback unit, configured to feed back the calculated CQI of the reference signal on the current resident subband and the CQI of the designated reference signal on the non-current subband to the base station;

The measurement gap is any specified period of time before the opportunity to feed back the CQI, and the base station will not schedule downlink on the subband where the UE is currently camping within the measurement gap; wherein, the UE's camping subband The band refers to the dedicated working frequency band selected when the UE initially accesses, or the default working frequency band when the UE receives downlink data without special instructions from the base station.

On the one hand, an embodiment of the present invention provides a CQI processing system, including: a UE and a base station, wherein,

The UE is used to measure the reference signal on the current resident sub-band in the non-measurement gap and calculate the reference signal on the current resident sub-band after measuring the specified reference signal on the non-current sub-band in the preset measurement gap CQI and the CQI of the reference signal on the designated non-current sub-band, and feed back the calculated CQI of the reference signal on the current resident sub-band and the CQI of the reference signal on the designated non-current sub-band to The base station; the measurement gap is any specified period of time before the opportunity to feed back the CQI, and the base station will not schedule downlink on the subband where the UE is currently camping in the measurement gap; wherein, the UE's camping The reserved sub-band refers to the dedicated working frequency band selected by the UE when it initially accesses, or the working frequency band when the UE receives downlink data by default without special instructions from the base station;

The base station is used to receive the CQI of the reference signal on the current resident sub-band fed back by the UE and the CQI of the reference signal on the designated non-current sub-band; the measurement gap is any specified time before the opportunity to feed back the CQI In the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camped; where the UE's camped subband refers to the dedicated working frequency band selected by the UE when it initially accesses , or does not require special instructions from the base station and defaults to the operating frequency band when the UE receives downlink data.

Embodiments of the present invention provide a CQI processing method, device, and system. In an application scenario where the user equipment UE can only receive reference signals on part of the system frequency bands within a scheduling interval TTI, or the UE transmits the CQI according to the CQI sent by the base station Measurement configuration information, determine the measurement gap, measure the reference signal on the specified non-current resident sub-band in the measurement gap or measure the specified non-current resident sub-band and the current resident sub-band in the non-measurement gap When the UE needs to receive downlink data in the measurement gap, the base station schedules the UE to receive downlink on the measurement subband; and the UE measures the reference signal on the measured subband and calculates the CQI. The base station sets the measurement gap, or the base station does not set the CQI measurement gap. After the UE measures the reference signal on the PDCCH resource domain, it performs corresponding UE feedback according to the existing CQI feedback method of the broadband UE, so as to realize that the UE in a specific scenario CQI feedback.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flowchart of a CQI processing method provided by an embodiment of the present invention;

FIG. 2 is a first structural diagram of a CQI processing device provided by an embodiment of the present invention;

FIG. 3 is a second structural schematic diagram of a CQI processing device provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a CQI processing system provided by an embodiment of the present invention;

FIG. 5 is a schematic flowchart of another CQI processing method provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of bands and subbands provided by an embodiment of the present invention;

FIG. 7 is a first structural schematic diagram of another CQI processing device provided by an embodiment of the present invention;

FIG. 8 is a second structural schematic diagram of another CQI processing device provided by an embodiment of the present invention;

FIG. 9 is a schematic flowchart of another CQI processing method provided by an embodiment of the present invention;

FIG. 10 is a first structural schematic diagram of another CQI processing device provided by an embodiment of the present invention;

FIG. 11 is a second structural schematic diagram of another CQI processing device provided by an embodiment of the present invention;

Fig. 12 is a schematic structural diagram of another CQI processing system provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

The CQI processing method provided by the embodiment of the present invention, as shown in FIG. 1, is applied to a scenario where the user equipment UE cannot receive the broadband physical downlink control channel PDCCH, nor can it receive the broadband physical downlink shared channel PDSCH. The steps of the method include:

S101. According to the preset measurement gap, the UE calculates the CQI after measuring the reference signal on the specified non-current resident subband in the measurement gap; the measurement gap is any specified time period before the opportunity to feed back the CQI, and During the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camped; where the UE's camped subband refers to the dedicated working frequency band selected by the UE when it initially accesses, or not The base station needs to specifically instruct and defaults to the operating frequency band when the UE receives downlink data.

Among them, the specific method for the UE to measure the CQI of the reference signal on the specified non-current resident subband in the measurement gap is: the UE only measures the CQI of the reference signal on the specified non-current resident subband in the frequency domain. Measurements are only performed on the PDSCH in the domain. When measuring CQI, when the UE needs to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink data on the measured non-current resident subband; and the UE The measured CQI is measured on the specified non-current resident subband.

Before the UE measures and feeds back the CQI, the method further includes: the UE receiving CQI measurement and feedback configuration information sent by the base station through dedicated radio resource control RRC signaling or broadcast information.

Specifically, the CQI measurement and feedback configuration information includes the measurement and feedback sequence of each subband within the system bandwidth during periodic feedback, and the measurement gap determined according to the subframes in which the CQI is periodically reported.

In addition, the CQI measurement and feedback configuration information also includes: the number of PRBs included in the subbands within the system bandwidth, and/or the number of subbands included in a band.

Exemplarily, the determination of the subband measurement and feedback sequence through the CQI measurement and feedback configuration information may specifically be: divide the entire band of the broadband UE into Jn bands on average, and each band includes several subbands, where , the number of sub-bands contained in each band is at least two, and can contain several, the number of sub-bands in the band depends on the size of the entire bandwidth and the number of divided bands, for example: the measurement The specific sequence of gaps can be J0-subband 0, J1-subband4, ... J0-subband 1, J1-subband 5, .... It is the first sub-band of J0, the first sub-band of J1 sub-band, that is, the fourth sub-band of the entire band, and it can also be the fifth or sixth. The specific number of sub-bands depends on After the entire zone is divided, the number of subbands in the J0 zone is the first one in the Jn zone in turn, and then the second subband in the J0 zone, the second subband in the JI zone, and the second subband in the Jn zone are fed back. The second subband, and so on set the corresponding measurement and feedback order. The measurement gap refers to a specified period of time before the CQI feedback subframe. For example, during periodic feedback, the UE's Kth subframe and (K+n) mod 10 (n>1) are two consecutive subframes for reporting CQI frame, and the measurement gap can be any subframe in K and (K+n), and in specific use, a fixed value needs to be set, for example, K+2 subframes are the measurement gap.

It should be noted that after the UE receives the configuration information sent by the base station and determines the corresponding feedback subframe, the UE sets the first three or two subframes of the subframe used for feedback as the measurement gap, and can also set the feedback subframe as the measurement gap. Any subframe in the time period preceding the subframe at t is set as the measurement gap, which is not limited in the present invention.

S102. The UE feeds back the calculated CQI to the base station.

Further, the UE periodically feeds back the measured CQI of the reference signal on the designated non-current resident sub-band on the PUCCH according to the measurement and feedback sequence of each sub-band in the CQI measurement and feedback configuration information.

Exemplarily, in each measurement, the measurement and feedback are performed according to the order of subband measurement and feedback in the measurement configuration information, that is, the first subband of the J0 band is measured first, and the first subband of the second band is measured. subbands, ..., and so on, after measurement is performed according to a specified measurement sequence, the measured CQI of the reference signal of the PDCCH is periodically fed back.

It should be noted that, the scheduling interval TTI refers to scheduling within the transmission time interval.

The embodiment of the present invention provides a CQI processing method. In a scenario mode in which the UE can only receive reference signals on some system frequency bands within a scheduling interval TTI, the UE determines the measurement gap according to the CQI measurement configuration information sent by the base station. In the measurement gap, measure the reference signal on the designated non-current resident subband, and calculate the CQI of the reference signal, and when the UE needs to receive downlink data in the measurement gap, the base station in the Scheduling the UE to receive downlink on the measured designated non-current resident subband; and the UE measures CQI on the measured non-current resident subband to realize CQI measurement and feedback of the UE in a specific scenario , which expands the scope of application of CQI measurement and feedback of the UE.

Embodiment two

The channel quality CQI processing method provided by the embodiment of the present invention is applied to a scenario where the user equipment UE cannot receive the broadband physical downlink control channel PDCCH, nor can it receive the broadband physical downlink shared channel PDSCH, and the method steps include:

S11. According to the preset measurement gap, the UE calculates the CQI after measuring the reference signal on the specified non-current resident subband in the measurement gap; the measurement gap is any specified time period before the opportunity to feed back the CQI, and During the measurement gap, the base station will not schedule downlink on the subband where the UE is currently camped; where the UE's camped subband refers to the dedicated working frequency band selected by the UE when it initially accesses, or not The base station needs to specifically instruct and defaults to the operating frequency band when the UE receives downlink data.

Among them, the specific method for the UE to measure the CQI of the reference signal on the specified non-current resident sub-band in the measurement gap is: the UE only measures the CQI of the reference signal on the specified non-current resident sub-band in the frequency domain. Measurements are only performed on the PDSCH in the domain.

Further, after the UE receives the trigger information of the uplink grant control information that carries the specified identification information of the UE's non-current camping subband sent by the base station, it performs measurement within the measurement gap; wherein, when the When the UE needs to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink on the specified non-current resident subband; and the UE measures CQI on the measured non-current subband .

Further, before the UE calculates the CQI after measuring the reference signal on the designated non-current resident subband in the measurement gap, this step further includes:

The UE receives the CQI measurement and feedback configuration information sent by the base station through dedicated radio resource control RRC signaling or broadcast information.

Specifically, the CQI measurement and feedback configuration information includes the measurement and feedback sequence of each subband within the system bandwidth during periodic feedback, and the measurement gap determined according to the subframes in which the CQI is periodically reported.

In addition, the CQI measurement and feedback configuration information also includes: the number of physical resource blocks (PRBs) included in the system band and subband, and/or the number of subbands included in a band.

Exemplarily, during aperiodic feedback, when the UE receives the indication information triggering aperiodic CQI feedback in the Kth downlink subframe, the measurement gap is any subframe between K and (K+4) mod 10, specifically When used, a fixed value needs to be set, for example, the K+2th subframe is the measurement gap.

S12. The UE feeds back the calculated CQI to the base station.

Exemplarily, when m=2, the CQI measurement gap is K+2 subframes, and the base station triggers the UE to perform measurement through the Kth subframe of DCI format 0 or 4. After receiving the trigger information, the UE The indicated subband measures the reference signal on the non-current resident subband and calculates the CQI, and feeds back to the base station on the physical uplink shared channel PUSCH of the UE.

Exemplarily, when the UE receives the identification information of the specified subband that the UE does not currently reside in carried in the uplink authorization control information sent by the base station in the Kth subframe as J1-subband4, the UE needs to The subframe feeds back the CQI of the subband, and the measurement gap is any subframe in K and K+4 subframes. For specific use, it is necessary to clearly specify that the K+2th subframe is the measurement gap.

The embodiment of the present invention provides a CQI processing method. In a scenario mode in which the UE can only receive reference signals on some system frequency bands within a scheduling interval TTI, the UE determines the measurement gap according to the CQI measurement configuration information sent by the base station. In the measurement gap, measure the reference signal on the specified non-current resident subband and the reference signal on the current resident subband, and calculate the CQI of the reference signal, and when the UE needs to receive in the measurement gap When downlinking data, the base station schedules the UE to receive downlink on the measured designated non-current resident subband; and the UE measures CQI on the measured designated non-current resident subband to Realize the CQI measurement and feedback of the UE in a specific scenario, and expand the applicable scope of the CQI measurement and feedback of the UE.

An embodiment of the present invention provides a CQI processing device 20, corresponding to the above method embodiment, each functional unit of the CQI processing device can be used in the above method steps. As shown in Figure 2, including:

The first measurement unit 21 is configured to calculate the CQI after measuring a reference signal on a designated non-current resident subband within the measurement gap according to a preset measurement gap.

The first feedback unit 22 is configured to feed back the calculated CQI to the base station; the measurement gap is any specified time period before the opportunity to feed back the CQI, and within the measurement gap, the base station will not be in the Scheduling downlink on the subband where the UE currently resides; wherein, the UE's resident subband refers to the dedicated working frequency band selected when the UE initially accesses, or the default frequency band when the UE receives downlink data without special instructions from the base station Working frequency.

Further, as shown in Figure 3, the device also includes:

The first receiving unit 23 is configured to receive CQI measurement and feedback configuration information sent by the base station through dedicated radio resource control RRC signaling or broadcast information.

Further, the first feedback unit 21 is also configured to periodically feed back the measurement and feedback order of the subbands in the CQI measurement and feedback configuration information on the physical uplink control channel PUCCH. The CQI of the reference signal on the non-current resident subband; wherein, when the UE needs to receive downlink data within the measurement gap, the base station schedules the measured non-current resident subband The UE receives the downlink; and the UE measures the CQI on the specified non-current resident subband of the measurement.

Further, the first receiving unit 23 is configured to receive the trigger information of the uplink grant control information carrying the identification information of the designated non-current camping subband of the UE sent by the base station.

The first feedback unit 22 is further configured to aperiodically measure the reference signal on the specified non-currently resident subband on the physical uplink shared channel PUSCH of the UE according to the indication in the uplink grant control information The CQI is fed back to the base station; wherein, when the UE needs to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink on the specified non-current resident subband; and the UE The CQI is measured on the specified non-current resident subbands of the measurement.

An embodiment of the present invention provides a CQI processing system. Corresponding to the above method embodiment and device embodiment, each functional unit of each device of the system can be used in the above method steps. As shown in Figure 4, it includes the following UEs and base stations:

The user equipment UE41 and the base station 42, where the UE may be the UE shown in FIG. 2, and may implement the technical solution of the method embodiment shown in FIG. 1, and its implementation principle will not be repeated here.

Exemplarily, in a practical application, a schematic diagram of a channel quality indication CQI processing system may be shown in FIG. Individual functional units can be used in the method steps described above.

Embodiments of the present invention provide a CQI processing device and system. In a scenario mode in which the UE can only receive reference signals on part of the system frequency bands within a scheduling interval TTI, the UE determines the measurement according to the CQI measurement configuration information sent by the base station. Gap, measure subbands in different scenarios on the measurement gap, and when the UE needs to receive downlink data in the measurement gap, the base station schedules on the measured non-currently resident subband The UE receives the downlink; and the UE measures the CQI on the measured non-current resident subband to realize the UE's CQI measurement and feedback in a specific scenario, expanding the scope of application of the UE's CQI measurement and feedback .

Embodiment three

The channel quality CQI processing method provided by the embodiment of the present invention, as shown in FIG. 5 , is applied to a scenario where the user equipment UE can receive the broadband physical downlink control channel PDCCH but cannot receive the broadband physical downlink shared channel PDSCH. Steps include:

S501. The UE measures the CQI of the reference signal on the system broadband control channel resource domain. Wherein, the system broadband control channel resource domain refers to the resource domain that occupies the entire system bandwidth in the frequency domain and occupies the first several OFDM symbols in the time domain.

Specifically, the UE measures the CQI of the reference signal on the system broadband control channel resource domain. The measurement method of the broadband UE in the prior art is used for the measurement, and the present invention will not repeat it here.

S502. The UE feeds back the measured CQI of the reference signal on the system broadband control channel resource domain to the base station.

The UE periodically feeds back the measured CQI of the reference signal on the system broadband control channel resource domain to the base station according to the CQI feedback method of the broadband UE in the prior art.

Specifically, the periodic CQI feedback of the UE includes two types, the first type is: wideband CQI measurement and feedback, and the second type is: UE selected subband measurement and feedback.

The first wideband CQI measurement and feedback method is specifically:

The UE measures a CQI of a reference signal in the entire band on the wideband control channel resource domain of the system, and feeds it back to the base station.

The second method for the UE to select subband measurement and feedback is specifically:

The UE measures the CQI of the reference signal on each subband in each band on the system broadband control channel resource domain, and performs each subband in each band on the measured system broadband control channel resource domain Among the CQIs of the upper reference signal, the CQI on a subband with the largest CQI value in each band is selected for feedback, and the index of the subband is fed back to the base station.

Specifically, the UE periodically divides the system bandwidth into multiple bands according to the CQI feedback method of the wideband UE in the prior art, measures the reference information on each band and each subband in the system bandwidth control channel resource domain, and Calculate the CQI; and when CQI is fed back, only the best CQI value in each band and the index of the subband corresponding to the best CQI value are fed back.

Exemplarily, as shown in FIG. 6, the UE periodically divides the entire bandwidth of the system broadband into J bands equally according to the CQI feedback method of the broadband UE in the prior art, and each band includes several sub-bands, and each Each subband contains several physical resource blocks (PhysicalResource Block, referred to as PRB), and the broadband UE will measure the CQI on each subband in each band. When feeding back, the broadband UE will only feed back the best subband in each band. The CQI on the band and the index of the corresponding subband.

Wherein, before the UE performs periodic measurement and feedback, the UE receives the periodic feedback mode, the periodic interval of the periodic feedback, and the resources occupied on the PUCCH channel sent by the base station through high-level signaling RRC signaling.

Since this feedback method is a prior art, the embodiment of the present invention will not repeat it again.

It should be noted that the UE in the embodiments of the present invention is a narrowband UE for a broadband UE in the prior art, and the periodic feedback method of CQI measurement and feedback is a method when no measurement gap is defined.

The embodiment of the present invention provides a CQI processing method. After the UE measures the reference signal on the system broadband control channel resource domain and calculates the CQI, according to the existing broadband UE CQI feedback method, the UE feedback in a specific scenario is performed to achieve Realize the CQI feedback of the UE in a specific scenario, and expand the scope of application of the UE's CQI measurement and feedback.

Embodiment four

The channel quality CQI processing method provided by the embodiment of the present invention is applied to a scenario where a user equipment UE can receive a broadband physical downlink control channel PDCCH but cannot receive a broadband physical downlink shared channel PDSCH. The method steps include:

S51. The UE measures the CQI of the reference signal on the system broadband control channel resource domain. Wherein, the system broadband control channel resource domain refers to the resource domain that occupies the entire system bandwidth in the frequency domain and occupies the first several OFDM symbols in the time domain.

Specifically, the UE measures the CQI of the reference signal on the system broadband control channel resource domain. The measurement method of the broadband UE in the prior art is used for the measurement, and the present invention will not repeat it here.

S52. The UE feeds back the measured CQI of the reference signal on the system broadband control channel resource domain to the base station.

The UE aperiodically feeds back the measured CQI of the reference signal on the broadband control channel resource domain of the measurement system to the base station according to the CQI feedback method of the broadband UE in the prior art.

Specifically, the UE's aperiodic CQI feedback includes two types. The first type is: UE selects subband measurement and feedback, and the second type is: configuring UE measurement and feedback through high layers.

It should be noted that the high-layer configuration refers to the configuration obtained through high-layer RRC signaling.

The first method for the UE to select subband measurement and feedback is specifically:

The UE measures the CQIs of the reference signals of all subbands on the system broadband control channel resource domain, and aperiodically selects the CQIs in all subbands from the measured CQIs of the reference signals on all subbands on the PDCCH resource domain The CQIs on the M subbands with the highest values are fed back, and the band index and subband index are fed back to the base station.

The second method of configuring UE measurement and feedback through high layers is specifically:

The UE measures the CQIs of the reference signals of all subbands in the resource domain of the system broadband control channel, and aperiodically feeds back the measured CQIs of the reference signals of all the subbands in the resource domain of the PDCCH to the base station.

The above method is the aperiodic CQI feedback method of the broadband UE in the prior art, and the embodiment of the present invention is only briefly introduced here, without detailed introduction.

It should be noted that this method is an aperiodic feedback method when no measurement gap is defined.

The embodiment of the present invention provides a CQI processing method. After the UE measures the reference signal on the PDCCH resource domain and calculates the CQI, according to the existing broadband UE CQI feedback method, the UE feedback in a specific scenario is performed to realize the specific scenario. The CQI feedback of the UE is lowered, and the scope of application of the CQI measurement and feedback of the UE is expanded.

An embodiment of the present invention provides a CQI processing device 70, corresponding to the foregoing method embodiment, each functional unit of the CQI processing device can be used in the foregoing method steps. As shown in Figure 7, including:

The second measurement unit 71 is configured to measure the CQI of the reference signal on the system broadband control channel resource domain.

The second feedback unit 72 is configured to feed back the CQI of the reference signal on the measured system broadband control channel resource domain to the base station; wherein, the system broadband control channel resource domain refers to the frequency domain occupying the entire system bandwidth, and the time domain Occupies the resource fields of the first several OFDM symbols.

Further, as shown in Figure 8, the device also includes:

The second measurement unit 73 is further configured to measure a CQI of a reference signal in the entire band on the system broadband control channel resource domain.

The second feedback unit 72 is further configured to feed back a CQI of the measured system broadband control channel resource domain in the entire in-band reference signal to the base station; wherein, the system broadband control channel resource domain refers to the frequency domain Occupies the entire system bandwidth in the upper part, and occupies the resource domains of the first several OFDM symbols in the time domain.

Further, the second measurement unit 71 is also configured to measure the CQI of the reference signal on each subband in each band in the system broadband control channel resource domain.

The second feedback unit 72 is further configured to select the one with the largest CQI value in each band among the measured CQIs of the reference signals on each sub-band in each band on the system broadband control channel resource domain The CQI on the subband is fed back, and the index of the subband is fed back to the base station; wherein, the system broadband control channel resource domain refers to the frequency domain occupying the entire system bandwidth, and the time domain occupying the first several positive The resource domain of OFDM symbols for cross-frequency division multiplexing.

Further, the second measurement unit 71 is further configured to measure CQIs of reference signals of all subbands in the system broadband control channel resource domain.

The second feedback unit 72 is further configured to compare the CQI values of all subbands in all bands in the measured CQI of the reference signal on the system broadband control channel resource domain, sort from high to low, and select the top The CQIs of the M subbands are fed back, and the band index and the subband index are fed back to the base station; wherein, the system broadband control channel resource domain refers to occupying the entire system bandwidth in the frequency domain and occupying the front in the time domain A resource field for several Orthogonal Frequency Division Multiplexing OFDM symbols.

Further, the second measurement unit 71 is further configured to measure CQIs of reference signals of all subbands in the system broadband control channel resource domain.

The second feedback unit 72 is further configured to feed back the measured CQIs of reference signals of all subbands on the system broadband control channel resource domain to the base station; wherein, the system broadband control channel resource domain refers to frequency In the domain, it occupies the entire system bandwidth, and in the time domain, it occupies the resource domains of the first several OFDM symbols.

An embodiment of the present invention provides a CQI processing system. Corresponding to the above method embodiment and device embodiment, each functional unit of each device of the system can be used in the above method steps. As shown in Figure 4, it includes the following UEs and base stations:

UE41 and base station 42, where the UE may be the UE shown in FIG. 7, and may execute the technical solution of the method embodiment shown in FIG. 5, and its implementation principle will not be repeated here.

Exemplarily, in a practical application, a schematic diagram of a channel quality indication CQI processing system may be shown in FIG. Individual functional units can be used in the method steps described above.

Embodiments of the present invention provide a CQI processing device and system. In a scenario mode in which the UE can only receive reference signals on part of the system frequency bands within a scheduling interval TTI, the UE determines the measurement according to the CQI measurement configuration information sent by the base station. Gap, measure subbands in different scenarios on the measurement gap, and when the UE needs to receive downlink data in the measurement gap, the base station schedules on the measured non-currently resident subband The UE receives the downlink; and the UE measures the CQI on the measured non-current resident subband to realize the UE's CQI measurement and feedback in a specific scenario, expanding the scope of application of the UE's CQI measurement and feedback .

Embodiment five

The CQI processing method provided by the embodiment of the present invention, as shown in FIG. 9 , is applied to a scenario where the UE cannot receive the physical downlink control channel PDCCH of the broadband UE and can reside in the physical downlink shared channel PDSCH of the broadband UE. Steps include:

S901. After measuring the reference signal on the current resident subband in the non-measurement gap and measuring the designated non-current reference signal on the subband in the preset measurement gap, the UE calculates the CQI and the specified CQI of the reference signal on the current resident subband respectively The CQI of the reference signal on the non-current sub-band; the measurement gap is any specified time period before the opportunity to feed back the CQI, and the base station will not schedule downlink on the sub-band where the UE is currently camping in the measurement gap; wherein, the UE's The resident subband refers to the dedicated working frequency band selected by the UE for initial access, or the default working frequency band for the UE to receive downlink data without special instructions from the base station.

Among them, the specific method for the UE to measure the CQI of the reference signal on the specified non-current resident subband in the measurement gap and measure the CQI of the reference signal on the current resident subband in the non-measurement gap is: for the specified non-current resident The sub-band and the current resident sub-band measure the CQI of a certain sub-band reference signal in a certain frequency domain on the PDSCH resource domain in the time domain. And when measuring CQI, when the UE needs to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink on the measured non-current resident subband; and the UE The CQI is measured on the specified non-current resident subbands of the measurement.

Further, after the UE measures the reference signal on the current resident subband in the non-measurement gap and measures the specified reference signal on the non-current subband in the measurement gap, the CQI and CQI of the reference signal on the current resident subband are respectively calculated. Before the CQI of the reference signal on the designated non-current subband, the method further includes: the UE receiving CQI measurement and feedback configuration information sent by the base station through dedicated radio resource control RRC signaling or broadcast information.

Specifically, the CQI measurement and feedback configuration information includes the measurement and feedback sequence of each subband within the system bandwidth during periodic feedback, and the measurement gap determined according to the subframe in which the CQI is fed back. In addition, the CQI measurement and feedback configuration information also includes the number of PRBs included in the subbands within the system bandwidth, and/or the number of subbands included in a band.

Exemplarily, the determination of the measurement and feedback order of each subband through the CQI measurement and feedback configuration information may be as follows: divide the entire band of the broadband UE into Jn bands on average, and each band includes several subbands, Wherein, the number of sub-bands contained in each band is at least two, and may include several, and the number of sub-bands in the band depends on the size of the entire bandwidth and the number of divided bands, for example: the The measurement sequence can be J0-subband 0, J1-subband4, ... J0-subband 1, J1-subband 5, .... That is, the first subband of J0, the first subband of J1 subband, that is, the fourth subband of the entire band, can also be the fifth or sixth, and the specific number of subbands depends on After the entire zone is divided, the number of subbands in the J0 zone is the first one in the Jn zone in turn, and then the second subband in the J0 zone, the second subband in the JI zone, and the second subband in the Jn zone are fed back. The second subband, and so on set the corresponding measurement measurement and feedback order. The measurement gap refers to a period of time between two CQI feedback subframes. For example, during periodic feedback, the UE's Kth subframe and (K+n) mod 10 (n>1) are two consecutive CQI reports The subframe and the measurement gap can be any one of K and (K+n), and in specific use, a fixed value needs to be set, for example, K+2 subframes are the measurement gap.

It should be noted that after the UE receives the configuration information sent by the base station and determines the corresponding feedback subframe, the UE sets the first three or two subframes of the subframe used for feedback as the measurement gap, and can also set the feedback subframe as the measurement gap. Any subframe in the time period preceding the subframe at t is set as the measurement gap, which is not limited in the present invention.

S902. The UE feeds back the calculated CQI of the reference signal on the current resident subband and the specified CQI of the reference signal on the non-current subband to the base station.

Specifically, on the PUCCH, the UE periodically feeds back the measured CQI of the reference signal on the non-current sub-band and the current resident The CQI of the reference signal on the reserved subband.

It should be noted that, the scheduling interval TTI refers to scheduling within the transmission time interval.

The embodiment of the present invention provides a CQI feedback method, in which the UE determines the measurement gap according to the CQI measurement configuration information sent by the base station in a scenario mode in which the UE can only receive reference signals on some system frequency bands within a scheduling interval TTI, In the measurement gap, measure the reference signal on the specified non-current resident subband and the reference signal on the current resident subband in the non-measurement gap, and calculate the CQI of the reference signal, and when the UE is in the specified When it is necessary to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink on the measured designated non-current resident subband; The measurement of CQI is carried to realize the CQI measurement and feedback of the UE in a specific scenario, which expands the scope of application of the UE's CQI measurement and feedback.

Embodiment six

The channel quality CQI measurement and feedback method provided by the embodiment of the present invention is applied to a scenario where the UE cannot receive the physical downlink control channel PDCCH of the broadband UE and can reside in the physical downlink shared channel PDSCH of the broadband UE. The method steps include :

S91. After the UE measures the reference signal on the current resident subband in the non-measurement gap and measures the reference signal on the specified non-current subband in the preset measurement gap, calculate the CQI of the reference signal on the current resident subband respectively and the CQI of the reference signal on the specified non-current subband. The measurement gap is any specified period of time before the opportunity to feed back the CQI, and the base station will not schedule downlink on the subband where the UE is currently camping within the measurement gap; wherein, the UE's camping subband The band refers to the dedicated working frequency band selected when the UE initially accesses, or the default working frequency band when the UE receives downlink data without special instructions from the base station.

Specifically, the UE measures the non-current resident subband specified by the PDSCH resource domain on its time domain in the measurement gap and the CQI of the reference signal on the current resident subband in the non-measurement gap.

Further, the UE performs measurement within the measurement gap after receiving the trigger information of the uplink grant control information that carries the specified identification information of the UE's non-current camping subband sent by the base station; wherein, when When the UE needs to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink on the measured specified non-current resident subband; The CQI is measured on the resident subband.

Further, after the UE measures the reference signal on the current resident subband in the non-measurement gap and measures a specified reference signal on the non-current subband in the preset measurement gap, it calculates the current resident subband Before the reference signal and the CQI of the reference signal on the specified non-current subband, the method also includes:

The base station sends the CQI measurement and feedback configuration information to the UE through dedicated radio resource control RRC signaling or broadcast information; the UE receives the CQI measurement and feedback configuration information sent by the base station.

Specifically, the CQI measurement and feedback configuration information includes the measurement and feedback sequence of each subband within the system bandwidth during periodic feedback, and the measurement gap determined according to the subframe in which the CQI is fed back.

In addition, the CQI measurement and feedback configuration information includes the number of physical resource blocks (PRBs) included in the system band and sub-band, and/or the number of sub-bands included in a band.

It should be noted that during aperiodic feedback, when the UE receives an indication message triggering aperiodic CQI feedback in the K-th downlink subframe, the measurement gap is any subframe between K and (K+4) mod 10, In specific use, a fixed value needs to be set, for example, the K+2th subframe is the measurement gap.

S92. The UE feeds back the calculated CQI of the reference signal on the current resident subband and the CQI of the specified reference signal on the non-current subband to the base station.

Exemplarily, when m=2, the CQI measurement gap is K+2 subframes, and the base station triggers the UE to perform measurement through the Kth subframe of DCI format 0 or 4. After receiving the trigger information, the UE The indicated subband measures the reference signal on the non-current resident subband, calculates the CQI, and feeds back to the base station on the physical uplink shared channel PUSCH of the UE.

Exemplarily, if the base station triggers the measurement subband J1-suddand 6 for the UE on the downlink channel of the Kth subframe, that is, triggers the measurement of the third subband of the J1 band on the downlink channel of the Kth subframe, then The measurement gap is the K+mth (0<m<4) subframe. When m=2, the preset CQI measurement gap is K+2 subframes, and the UE performs a subband measurement on the K+2 subframe of the measurement gap. J1-suddand 6 Perform measurement and calculate CQI, and measure the reference signal on the current resident subband in the non-measurement gap; when the UE needs to receive downlink data in the measurement gap during measurement, the base station in the specified non-measurement gap Scheduling the UE to receive the downlink on the current resident subband; and the UE measures the CQI on the measured non-current subband. After measuring the designated non-current resident subband and the current resident subband reference signal CQI, it is fed back to the base station.

The embodiment of the present invention provides a CQI feedback method, in which the UE determines the measurement gap according to the CQI measurement configuration information sent by the base station in a scenario mode in which the UE can only receive reference signals on some system frequency bands within a scheduling interval TTI, In the measurement gap, measure the reference signal on the specified non-current resident subband and the reference signal on the current resident subband in the non-measurement gap, and calculate the CQI of the reference signal, and when the UE is in the specified When it is necessary to receive downlink data within the measurement gap, the base station schedules the UE to receive downlink on the measured designated non-current resident subband; The measurement of CQI is carried to realize the CQI measurement and feedback of the UE in a specific scenario, which expands the scope of application of the UE's CQI measurement and feedback.

An embodiment of the present invention provides a CQI measurement and feedback device 100, corresponding to the above method embodiment, each functional unit of the CQI measurement and feedback device can be used in the above method steps. As shown in Figure 10, including:

The third measurement unit 101 is configured to measure the reference signal on the current resident subband in the non-measurement gap and measure the reference signal on the specified non-current subband in the preset measurement gap to calculate the current resident subband respectively The CQI of the upper reference signal and the CQI of the specified non-current subband upper reference signal.

The third feedback unit 102 is configured to feed back the calculated CQI of the reference signal on the current resident subband and the CQI of the designated reference signal on the non-current subband to the base station.

The measurement gap is any specified period of time before the opportunity to feed back the CQI, and the base station will not schedule downlink on the subband where the UE is currently camping within the measurement gap; wherein, the UE's camping subband The band refers to the dedicated working frequency band selected when the UE initially accesses, or the default working frequency band when the UE receives downlink data without special instructions from the base station.

Further, as shown in Figure 11, the device also includes:

The third receiving unit 103 is configured to receive CQI measurement and feedback configuration information sent by the base station through dedicated radio resource control RRC signaling or broadcast information.

Further, the third feedback unit 102 is also configured to periodically feed back the measurement and feedback order of each subband in the CQI measurement and feedback configuration information on the physical uplink control channel PUCCH The CQI of the reference signal on the specified non-current subband and the CQI of the reference signal on the current resident subband; wherein, when the UE needs to receive downlink data within the measurement gap, the base station Scheduling the UE to receive downlink on the specified non-current subband; and the UE measures the CQI on the specified non-current subband of the measurement.

Further, the third receiving unit 103 is further configured to receive the trigger information of the uplink grant control information carrying the identification information of the designated non-current camping subband of the UE sent by the base station.

The third feedback unit 102 is further configured to perform measurement in the measurement gap, and aperiodically measure the current resident on the physical uplink shared channel PUSCH of the UE according to the indication in the uplink grant control information. Feedback the CQI of the reference signal on the reserved subband and the CQI of the designated reference signal on the non-current resident subband to the base station; wherein, when the UE needs to receive downlink data within the measurement gap, the The base station schedules the UE to receive downlink on the specified non-current resident subband; and the UE measures CQI on the measured non-current subband.

An embodiment of the present invention provides a CQI processing system. Corresponding to the above method embodiment and device embodiment, each functional unit of each device of the system can be used in the above method steps. As shown in Figure 5, it includes the following UEs and base stations:

UE41 and base station 42, where the UE may be the UE shown in FIG. 10, and may implement the technical solution of the method embodiment shown in FIG. 9, and its implementation principle will not be repeated here.

Exemplarily, in a practical application, a schematic diagram of a channel quality indication CQI processing system may be shown in FIG. Individual functional units can be used in the method steps described above.

Embodiments of the present invention provide a CQI processing device and system. In a scenario mode in which the UE can only receive reference signals on part of the system frequency bands within a scheduling interval TTI, the UE determines the measurement according to the CQI measurement configuration information sent by the base station. Gap, measure subbands in different scenarios on the measurement gap, and when the UE needs to receive downlink data in the measurement gap, the base station schedules on the measured non-currently resident subband The UE receives the downlink; and the UE measures the CQI on the measured non-current resident subband to realize the UE's CQI measurement and feedback in a specific scenario, expanding the scope of application of the UE's CQI measurement and feedback .

The inventive arrangements may be described in the general context of computer-executable instructions, such as program elements, being executed by a computer. Generally, program elements include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The inventive arrangements may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program elements may be located in both local and remote computer storage media including storage devices.

Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for relevant parts, please refer to part of the description of the method embodiment. The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc., which can store program codes. .

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by means of software plus necessary general-purpose hardware. The general-purpose hardware includes general-purpose integrated circuits, general-purpose CPUs, general-purpose memories, general-purpose components, etc. , Of course, it can also be realized by dedicated hardware including application-specific integrated circuits, dedicated CPUs, dedicated memories, dedicated components, etc., but in many cases the former is a better implementation. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a floppy disk of a computer , a hard disk or an optical disk, etc., including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute the methods of various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (31)

1. channel quality indicator (CQI) processing method, described method are applied to the reference signal of user equipment (UE) on can only receiving unit system frequency range in a scheduling interval TTI, it is characterized in that, described method comprises:

UE is according to the measurement clearance that pre-sets, calculates CQI measure the reference signal on the non-current residence sub-band of appointment in described measurement clearance after, and the CQI that will calculate gained feeds back to the base station;

Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving.

2. described method according to claim 1, it is characterized in that, described UE calculates CQI according to the measurement clearance that pre-sets after the reference signal in described measurement clearance on the non-current residence sub-band of measurement appointment, and before the CQI that will calculate gained fed back to the base station, described method also comprised:

Described UE receives described base station by the measurement of the CQI of special-purpose radio resource control RRC signaling or broadcast message transmission and the configuration information of feedback.

3. described method according to claim 2 is characterized in that, the measurement of described CQI and the configuration information of feedback, the measurement of each subband and feedback order in the system bandwidth when comprising periodic feedback, according to the subframe of periodic report CQI, definite described measurement clearance.

4. according to claim 2 or 3 described methods, it is characterized in that, described CQI measures and feedback configuration information, also comprises the number of the Physical Resource Block PRB that the interior subband of system bandwidth comprises, and/or the number of the subband that comprises in zone.

5. described method according to claim 3 is characterized in that, described UE is according to the measurement clearance that pre-sets, and calculates CQI measure the reference signal on the non-current residence sub-band of appointment in described measurement clearance after, and the CQI that will calculate gained feeds back to the base station and comprises:

Described UE measures the CQI of reference signal on the non-current residence sub-band of appointment according to the measurement clearance that pre-sets, in described measurement clearance, the control channel PUCCH that goes physically is upper periodically according to the CQI of reference signal on the non-current residence sub-band of the measurement of each subband in the configuration information of the measurement of described CQI and feedback and the appointment that feedback is sequentially fed back measurement; Wherein, when described UE needed downlink data receiving in described measurement clearance, described base station received descending at the described UE of non-current residence sub-band scheduling of the appointment of described measurement; And described UE measures CQI at the non-current residence sub-band of the appointment of described measurement.

6. described method according to claim 1, it is characterized in that, according to the measurement clearance that pre-sets, calculate CQI after the reference signal in described measurement clearance on the non-current residence sub-band of measurement appointment at described UE, and before the CQI that will calculate gained fed back to the base station, described method also comprised:

After described UE receives the trigger message of uplink authorization control information of identification information of the non-current residence sub-band of described UE that carries appointment that described base station sends, in described measurement clearance, measure, and the CQI of reference signal feeds back to described base station on the non-current residence sub-band of the described appointment that aperiodicity will be measured according to the indication in the described uplink authorization control information on the Physical Uplink Shared Channel PUSCH of UE; Wherein, need to be in described measurement clearance during downlink data receiving as described UE, described base station receives descending at the non-current residence sub-band scheduling UE of described appointment; And described UE measures CQI at the non-current residence sub-band of the appointment of described measurement.

7. a channel quality indicator (CQI) processing unit is characterized in that, comprising:

The first measuring unit is used for according to the measurement clearance that pre-sets, and calculates CQI after the reference signal in described measurement clearance on the non-current residence sub-band of measurement appointment;

The first feedback unit feeds back to the base station for the described CQI that will calculate gained;

Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving.

8. described device according to claim 7 is characterized in that, described device also comprises:

The first receiving element is used for receiving described base station by the measurement of the CQI of special-purpose radio resource control RRC signaling or broadcast message transmission and the configuration information of feedback.

9. described device according to claim 7 is characterized in that,

Described the first feedback unit also is used for going physically control channel PUCCH upper periodically according to the CQI of reference signal on the non-current residence sub-band of the measurement of each subband of the configuration information of the measurement of described CQI and feedback and the appointment that feedback is sequentially fed back measurement; Wherein, when described UE needed downlink data receiving in described measurement clearance, described base station received descending at the described UE of non-current residence sub-band scheduling of the appointment of described measurement; And described UE measures CQI at the non-current residence sub-band of the appointment of described measurement.

10. described device according to claim 7 is characterized in that,

Described the first receiving element is used for receiving the trigger message of uplink authorization control information of the identification information of the non-current residence sub-band of described UE that carries appointment that described base station sends;

Described the first feedback unit also feeds back to described base station for the CQI of reference signal on the non-current residence sub-band of the described appointment that aperiodicity on the Physical Uplink Shared Channel PUSCH of UE will be measured according to the indication of described uplink authorization control information; Wherein, need to be in described measurement clearance during downlink data receiving as described UE, described base station receives descending at the non-current residence sub-band scheduling UE of described appointment; And described UE measures CQI at the non-current residence sub-band of the appointment of described measurement.

11. a channel quality indicator (CQI) treatment system is characterized in that, comprises UE and base station, wherein,

Described UE is used for according to the measurement clearance that pre-sets, and calculates CQI measure the reference signal on the non-current residence sub-band of appointment in described measurement clearance after, and the CQI that will calculate gained feeds back to the base station; Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving;

The measurement clearance that described base station pre-sets for the basis that receives the UE feedback, the CQI of the reference signal on the non-current residence sub-band of the appointment of in described measurement clearance, measuring; Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving.

12. a channel quality indicator (CQI) processing method, described method are applied to the reference signal of user equipment (UE) on can only receiving unit system frequency range in a scheduling interval TTI, described method comprises:

The CQI of reference signal and feed back to described base station on the control channel resource domains of UE measuring system broadband; Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

13. described method is characterized in that according to claim 12, the CQI of reference signal and feed back to described base station and comprise on the control channel resource domains of described UE measuring system broadband:

Described UE measures a CQI of whole zone internal reference signals on the described system broad control channel resource domains, and feeds back to described base station;

Described UE measures on the described system broad control channel resource domains CQI of reference signal on each subband in each zone, and on the described system broad control channel resource domains of measuring on each subband in each zone among the CQI of reference signal, select the CQI on the maximum subband of CQI value in each zone to feed back, and the index of described subband is fed back to described base station.

14. described method is characterized in that according to claim 12, the CQI of reference signal and feed back to described base station and comprise on the control channel resource domains of described UE measuring system broadband: described UE selects subband to measure and feedback, measures and feedback by high-rise configuration UE;

Described UE selects subband to measure and the method for feedback comprises:

Described UE measures the CQI of the reference signal of all subbands on the described system broad control channel resource domains, and on the described system broad control channel resource domains of measuring among the CQI of reference signal, the CQI value of all subbands in all zones relatively, from high to low ordering, and the CQI of M subband feeds back before selecting, and described zone index and described subband index are fed back to the base station.

Described method by high-rise configuration UE measurement and feedback comprises:

Described UE measures the CQI of the reference signal of all subbands on the described system broad control channel resource domains, and the CQI of the reference signal of all subbands feeds back to described base station on the described system broad control channel resource domains that will measure.

15. a channel quality indicator (CQI) processing unit is characterized in that, comprising:

The second measuring unit is for the CQI of reference signal on the control channel resource domains of measuring system broadband;

The second feedback unit, the CQI of reference signal feeds back to described base station on the system broad control channel resource domains that is used for measuring;

Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

16. described device is characterized in that according to claim 15,

Described the second measuring unit is also for a CQI who measures whole zone internal reference signals on the described system broad control channel resource domains;

Described the second feedback unit, a CQI who also is used for whole zone internal reference signals on the described system broad control channel resource domains that will measure feeds back to the base station;

Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

17. described device is characterized in that according to claim 15,

Described the second measuring unit also is used for measuring the CQI of reference signal on each subband of each zone on the described system broad control channel resource domains;

Described the second feedback unit, also among the CQI for reference signal on each subband of each zone on the described system broad control channel resource domains of measuring, select the CQI on the maximum subband of CQI value in each zone to feed back, and the index of described subband is fed back to described base station;

Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

18. described device is characterized in that according to claim 15,

Described the second measuring unit is also for the CQI that measures the reference signal of all subbands on the described system broad control channel resource domains;

Described the second feedback unit, the CQI that also is used for reference signal on the described system broad control channel resource domains of measuring, the CQI value of all subbands in all zones relatively, from high to low ordering, and the CQI of M subband feeds back before selecting, and described zone index and described subband index are fed back to the base station;

Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

19. described device is characterized in that according to claim 15,

Described the second measuring unit is also for the CQI that measures the reference signal of all subbands on the described system broad control channel resource domains;

Described the second feedback unit, the CQI that also is used for the reference signal of all subbands on the described system broad control channel resource domains that will measure feeds back to described base station;

Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

20. a channel quality indicator (CQI) treatment system is characterized in that, comprises UE and base station, wherein,

Described UE is used for the CQI of reference signal on the control channel resource domains of measuring system broadband and feeds back to described base station; Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain;

Described base station is for the CQI of reference signal on the measuring system broadband control channel resource domains that receives the UE feedback; Wherein, described system broad control channel resource domains refers to account for the whole system bandwidth on the frequency domain, the resource domains of several orthogonal frequency division multiplex OFDM symbols before accounting on the time domain.

21. a channel quality indicator (CQI) processing method, described method are applied to the reference signal of user equipment (UE) on can only receiving unit system frequency range in a scheduling interval TTI, it is characterized in that, described method comprises:

UE in non-measurement clearance, measure reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of the CQI that calculates respectively reference signal on the described current residence sub-band on the non-current subband of appointment after the reference signal and described appointment, and the CQI that will calculate reference signal on the non-current subband of the CQI of reference signal on the described current residence sub-band of gained and described appointment feeds back to the base station;

Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in the described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving.

22. described method according to claim 21, it is characterized in that, described UE in non-measurement clearance, measure reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of the CQI that calculates respectively reference signal on the described current residence sub-band on the non-current subband of appointment after the reference signal and described appointment, and before the CQI that calculates reference signal on the non-current subband of the CQI of reference signal on the described current residence sub-band of gained and described appointment fed back to the base station, described method also comprised:

Described UE receives described base station by the measurement of the CQI of special-purpose radio resource control RRC signaling or broadcast message transmission and the configuration information of feedback.

23. described method is characterized in that according to claim 21, the measurement of described CQI and the configuration information of feedback, the measurement of each subband and feedback order in the system bandwidth when comprising periodic feedback, according to the subframe of periodic report CQI, definite described measurement clearance.

24. described method is characterized in that according to claim 21, the measurement of described CQI and the configuration information of feedback also comprise the number of the Physical Resource Block PRB that subband comprises in the system bandwidth, and/or the number of the subband that comprises in zone.

25. described method according to claim 21, it is characterized in that, described UE in non-measurement clearance, measure reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of the CQI that calculates respectively reference signal on the described current residence sub-band on the non-current subband of appointment after the reference signal and described appointment, and calculate on the non-current subband of the CQI of reference signal on the described current residence sub-band of gained and described appointment the CQI of reference signal and feed back to the base station and comprise:

Described UE in non-measurement clearance, measure reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of appointment, the control channel PUCCH that goes physically is upper periodically according to the CQI of reference signal on the CQI of reference signal on the non-current subband of the measurement of each subband in the configuration information of the measurement of described CQI and feedback and the described appointment that feedback is sequentially fed back measurement and the described current residence sub-band; Wherein, when described UE needed downlink data receiving in described measurement clearance, described base station received descending at the described UE of non-current subband scheduling of the appointment of described measurement; And described UE measures CQI at the non-current subband of the appointment of described measurement.

26. described method according to claim 21, it is characterized in that, described UE in non-measurement clearance, measure reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of the CQI that calculates respectively reference signal on the described current residence sub-band on the non-current subband of appointment after the reference signal and described appointment, and before the CQI that calculates reference signal on the non-current subband of the CQI of reference signal on the described current residence sub-band of gained and described appointment fed back to the base station, described method also comprised:

After described UE receives the trigger message of uplink authorization control information of identification information of the non-current residence sub-band of described UE that carries appointment that described base station sends, in described measurement clearance, measure, and the CQI of reference signal feeds back to described base station on the non-current residence sub-band of the CQI of reference signal and described appointment on the described current residence sub-band that aperiodicity will be measured according to the indication in the described uplink authorization control information on the Physical Uplink Shared Channel PUSCH of UE; Wherein, need to be in described measurement clearance during downlink data receiving as described UE, described base station receives descending at the non-current residence sub-band scheduling UE of the appointment of described measurement; And described UE measures CQI at the non-current residence sub-band of the appointment of described measurement.

27. a channel quality indicator (CQI) processing unit is characterized in that, comprising:

The 3rd measuring unit, be used in non-measurement clearance, measuring reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of the CQI that calculates respectively reference signal on the described current residence sub-band on the non-current subband of appointment after the reference signal and described appointment;

The 3rd feedback unit, the CQI that is used for calculating reference signal on the non-current subband of the CQI of reference signal on the described current residence sub-band of gained and described appointment feeds back to the base station;

Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in the described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving.

28. described device is characterized in that according to claim 27, described device also comprises:

The 3rd receiving element is used for receiving described base station by the measurement of the CQI of special-purpose radio resource control RRC signaling or broadcast message transmission and the configuration information of feedback.

29. described device is characterized in that according to claim 27,

Described the 3rd feedback unit also is used for going physically control channel PUCCH upper periodically according to the CQI of reference signal on the CQI of reference signal on the non-current subband of the measurement of each subband of the configuration information of the measurement of described CQI and feedback and the described appointment that feedback is sequentially fed back measurement and the described current residence sub-band; Wherein, when described UE needed downlink data receiving in described measurement clearance, described base station received descending at the described UE of non-current subband scheduling of the appointment of described measurement; And described UE measures CQI at the non-current subband of the appointment of described measurement.

30. described device is characterized in that according to claim 27,

Described the 3rd receiving element also is used for receiving the trigger message of uplink authorization control information of the identification information of the non-current residence sub-band of described UE that carries appointment that described base station sends;

Described the 3rd feedback unit, also be used in described measurement clearance, measuring, and the CQI of reference signal feeds back to described base station on the non-current residence sub-band of the CQI of reference signal and described appointment on the described current residence sub-band that aperiodicity will be measured according to the indication in the described uplink authorization control information on the Physical Uplink Shared Channel PUSCH of UE; Wherein, need to be in described measurement clearance during downlink data receiving as described UE, described base station receives descending at the non-current residence sub-band scheduling UE of the appointment of described measurement; And described UE measures CQI at the non-current residence sub-band of the appointment of described measurement.

31. a channel quality indicator (CQI) treatment system is characterized in that, comprises UE and base station, wherein,

Described UE be used in non-measurement clearance, measuring reference signal on the current residence sub-band and the measurement clearance that pre-seting in measure the CQI of reference signal on the non-current subband of the CQI that calculates respectively reference signal on the described current residence sub-band on the non-current subband of appointment after the reference signal and described appointment, and the CQI that will calculate reference signal on the non-current subband of the CQI of reference signal on the described current residence sub-band of gained and described appointment feeds back to the base station; Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in the described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving;

Described base station be used for to receive the CQI of reference signal on the non-current subband of the CQI of reference signal on the described current residence sub-band of UE feedback and described appointment; Described measurement clearance is the arbitrary fixed time section of feedback before CQI opportunity, and in described measurement clearance described base station can be on the current resident subband of described UE dispatching downlink; Wherein, the special-purpose working frequency range of selecting when the residence sub-band of described UE refers to that UE initially accesses, or do not need described base station special instructions and working frequency range when giving tacit consent to the UE downlink data receiving.

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