CN102118234A - Channel quality indicator (CQI) feedback method, communication equipment and communication system - Google Patents
Channel quality indicator (CQI) feedback method, communication equipment and communication system Download PDFInfo
- Publication number
- CN102118234A CN102118234A CN2009102388557A CN200910238855A CN102118234A CN 102118234 A CN102118234 A CN 102118234A CN 2009102388557 A CN2009102388557 A CN 2009102388557A CN 200910238855 A CN200910238855 A CN 200910238855A CN 102118234 A CN102118234 A CN 102118234A
- Authority
- CN
- China
- Prior art keywords
- band information
- cqi
- femto cell
- henb
- frequency band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the wireless technical field and discloses a channel quality indicator (CQI) feedback method, including the following steps: a miniature base station transmits the self-use frequency band information to user equipment (UE), and a channel quality indicator transmitted by the user equipment is received and fed back after the frequency band indicated by the frequency band information is measured by the user equipment. The invention also discloses communication equipment and a communication system. In the scheme, the UE measures the frequency band indicated by the frequency band information and feeds back the measured CQI according to the frequency band information used and transmitted by the miniature base station in need of feeding back the CQI. Therefore, the UE does not need to measure all frequency bands and feed back the CQI, thus saving air interface resources.
Description
Technical field
The present invention relates to wireless technical field, relate in particular to a kind of channel quality and indicate (Channel QualityIndication, CQI) feedback method, communication equipment and system.
Background technology
(Long Term Evolution, LTE) in the system, in order to obtain down channel quality, (User Equipment UE) needs feedback CQI to subscriber equipment, and the CQI that network side reports according to UE is that UE selects suitable modulation coding mode at Long Term Evolution.Network side is controlled time, the content of CQI feedback by signaling.
In the prior art, according to the time of UE feedback CQI, the CQI feedback can be divided into the periodic triggers feedback and aperiodicity triggers feedback.According to the content of CQI feedback, the CQI feedback can be divided into broadband CQI and subband CQI, and wherein CQI feedback in broadband is meant that UE measures the signal quality of whole bandwidth, feeds back to the value of a CQI; Subband CQI feedback is meant, whole bandwidth is divided into several subbands, reports the value of a CQI on each subband respectively.
Femto cell, for example (Home evolved Node B HeNB), generally uses the bandwidth of part to the family type evolution base station.For example, the domestic consumer is 5MHz, and enterprise-class tools is 10MHz.Amount of bandwidth that HeNB uses and position etc. are determined by algorithm, the size of bandwidth and position all can change, and according to CQI feedback method of the prior art, the UE under the HeNB coverage is when feedback CQI, the CQI of feedback much is not the frequency band that HeNB uses, and has wasted interface-free resources.
Summary of the invention
The embodiment of the invention provides a kind of method for feedback of channel quality indication, communication equipment and communication system, makes UE save interface-free resources when feeding back CQI under femto cell covers.
One aspect of the present invention provides a kind of method for feedback of channel quality indication, comprising: UE receives the band information of this femto cell use of femto cell transmission;
Measure the frequency band of described band information indication;
The channel quality indication of measuring is fed back to described femto cell.
The present invention also provides a kind of method for feedback of channel quality indication on the other hand, comprising: femto cell sends the band information that this femto cell self uses to UE;
Receive the channel quality indication that described UE sends, described channel quality indication is fed back measured the frequency band of described band information indication by described UE after.
The present invention provides a kind of communication equipment on the other hand, comprising: receiving element is used to receive the band information that this femto cell that femto cell sends uses;
Measuring unit is used to measure the frequency band of the band information indication that described receiving element receives;
Feedback unit, the channel quality indication that is used for described measuring unit is measured feeds back to described femto cell.
The present invention also provides a kind of communication equipment on the other hand, comprising: transmitting element is used for sending the band information that self uses to UE;
Receiving element is used to receive the channel quality indication that described UE sends, and described channel quality indication is fed back measured the frequency band of described band information indication by described UE after.
Further aspect of the present invention also provides a kind of communication system, comprises two above-mentioned communication equipments.
The scheme that provides according to the embodiment of the invention, UE is when needs feedback CQI, the band information that this femto cell that sends according to femto cell uses, measure and feed back the CQI of measurement in the frequency band to this band information indication, like this, UE need not all frequency bands are measured and fed back CQI, therefore, interface-free resources can be saved widely, and the energy consumption of UE can be reduced.
Description of drawings
Fig. 1 is a kind of CQI feedback method schematic flow sheet in the embodiment of the invention;
Fig. 2 is an another kind of CQI feedback method schematic flow sheet in the embodiment of the invention;
Fig. 3 is a kind of CQI feedback method signaling process schematic diagram in the embodiment of the invention;
Fig. 4 is an another kind of CQI feedback method signaling process schematic diagram in the embodiment of the invention;
Fig. 5 is a kind of communication equipment structural representation in the embodiment of the invention;
Fig. 6 is an another kind of communication equipment structural representation in the embodiment of the invention;
Fig. 7 is a communication system architecture schematic diagram in the embodiment of the invention.
Embodiment
In order to make concrete technical scheme of the present invention, goal of the invention clearer, be described further below in conjunction with concrete execution mode and accompanying drawing.
As shown in Figure 1, a kind of CQI feedback method for the embodiment of the invention provides comprises:
Step 101:UE receives the band information of this femto cell use of femto cell transmission;
Step 102: the frequency band of measuring described band information indication;
Step 103: the CQI that measures is fed back to described femto cell.
As shown in Figure 2, the embodiment of the invention also provides a kind of CQI feedback method, comprising:
Step 201: femto cell sends the band information that this femto cell self uses to UE;
Step 202: receive the CQI that described UE sends, described CQI feeds back measured the frequency band of described band information indication by described UE after.
The method that provides according to the embodiment of the invention, UE is when needs feedback CQI, the band information that the HeNB that sends according to HeNB uses, measure and feed back the CQI of measurement in the frequency band to this band information indication, UE need not all frequency bands are measured and fed back CQI like this, has therefore saved interface-free resources.And, because UE need not all frequency bands are measured and fed back CQI, the power consumption that then can save UE.In addition, UE directly measures the frequency band that HeNB uses, can obtain CQI more accurately, by the CQI that feedback is in this way obtained, HeNB can select modulation coding mode (Modulation and Coding Scheme more exactly, MCS), improve quality of service and power system capacity.
In embodiments of the present invention, femto cell generally is for macro base station, femto cell is less than its transmitting power of macro base station, and the frequency band that uses is the part of macro base station service band, for example, in the LTE system, macro base station uses the bandwidth of 10MHz or 20MHz, and the frequency band that femto cell uses only is the part of macro base station utilized bandwidth, for example, the femto cell of home-use house type uses 5MHz, the femto cell 10MHz that the enterprise customer uses.Generally speaking, the volume of femto cell is also little than macro base station.The relay station constant power femto cell less, that use partial-band that femto cell can comprise HeNB, indoor access point, skin honeycomb (Pico) base station, femtocell (Femto) base station and have base station functions.In embodiments of the present invention, the method of CQI feedback is described as the typical case of femto cell with HeNB, it will be appreciated by those skilled in the art that, other femto cell, for example indoor access point, leather cellular base station, femtocell and relay station with base station functions etc. can be realized the method that the embodiment of the invention provides.
As shown in Figure 3, a kind of CQI feedback method that the embodiment of the invention provides comprises:
Step 301:HeNB notifies UE by common signal channel with the band information that uses.
For example, HeNB can pass through broadcast channel, and with the band information notice UE that uses, HeNB sends broadcast to UE, comprises the band information that this HeNB uses in the broadcast.HeNB can be in broadcast channel system information block (System Information Block, SIB) in the band information that uses of sign this HeNB self, can adopt the method for bitmap or directly indicate the method for frequency band position to identify band information.For example, can in SIB9, adopt the method for bitmap to identify this band information:
SystemInformationBlockType9::＝ SEQUENCE{
hnb-Name OCTET?STRING(SIZE(1...48)) OPTINAL，--Need?OR
hnb-FreqBandInfo BIT?STRING(SIZE(N))
}
Wherein, the N value is by the decision of the system bandwidth of macrocell size, bit can be set be at 1 o'clock and represent available, is to represent unavailablely at 0 o'clock, bit also can be set be at 0 o'clock and represent available, is to represent unavailable at 1 o'clock.
For example, also can in SIB9, adopt the method for directly indication to identify band information:
SystemInformationBlockType9::＝ SEQUENCE{
hnb-Name OCTET?STRING(SIZE(1...48)) OPTINAL，--Need?OR
hnb-AvRBNum Integer(M)
hnb-FreqBandInfo ENUM (RB_0，RB_1，.....RB_M)
}
Wherein, M is that (Radio Bear, number RB), hnb-FreqBandInfo field represent to use the sequence number of RB resource to the operable radio bearer of HeNB with the mode of enumerating.
If the sub-district of HeNB and UE support that (Multimedia BroadcastMulticast Service, MBMS), then HeNB can notify UE with band information by the mode of MBMS to multimedia broadcast-multicast service.
Step 302:UE measures the frequency band of HeNB.
After UE receives the broadcast of HeNB, obtain the band information that wherein comprises, learn the frequency band that HeNB uses.When needs UE feedback CQI, UE measures the frequency band of band information indication.
UE can measure the employed frequency band of HeNB after receiving the CQI control signaling of HeNB transmission.Measure cycle, the measurement pattern of feedback and can control cell content decision in the signaling by the CQI that HeNB sends.For example, UE receives the rrc layer control signaling that HeNB sends, and requires UE feedback CQI, then UE can be periodically or aperiodicity ground the employed frequency band of HeNB is measured; (Physical Downlink Control Channel, PDCCH) control signaling require UE feedback CQI, and then UE can carry out aperiodicity to the employed frequency band of HeNB and measures if UE receives the Physical Downlink Control Channel that HeNB sends.
Step 303:UE feeds back to HeNB with the CQI that measures.
According to the CQI control signaling difference that UE receives, UE can periodicity or aperiodicity feedback CQI.For example, if the UE reception is rrc layer control signaling, then UE feeds back to HeNB with the CQI that measures behind periodic measurement and periodically, if the UE reception is PDCCH control signaling, then UE feeds back to HeNB with the CQI that measures after measurement, need not periodic feedback.But but the content of feedback CQI can comprise the CQI of HeNB service band or the subband CQI of service band.
According to the embodiment of the invention, UE need not all frequency bands are measured and fed back CQI, has therefore saved interface-free resources.And, because UE need not all frequency bands are measured and fed back CQI, the power consumption that then can save UE.In addition, UE directly measures the frequency band that HeNB uses, and can obtain CQI more accurately, and by the CQI that feedback is in this way obtained, HeNB can select MCS more exactly, raising quality of service and power system capacity.HeNB informs UE by common signal channel with the band information that this HeNB uses, can UE and HeNB do not set up link in, just the channel information of HeNB use is informed UE, make UE in time know the band information of HeNB use easily.
As shown in Figure 4, the embodiment of the invention provides another kind of CQI feedback method, comprising:
Step 401:UE sets up to insert at random with HeNB and is connected.
After UE enters the coverage of HeNB, initiate random access procedure, connect with HeNB.
The band information notice UE that step 402:HeNB uses HeNB by dedicated channel.
Send the signaling message of rrc layer, comprise the band information that this HeNB uses in the signaling message of this rrc layer.
After UE and HeNB connected by random access procedure, HeNB can be notified to UE with the band information that HeNB uses by dedicated channel, and band information can be included in the signaling of layer 3, and for example the rrc layer signaling is measured control signaling etc.Can adopt the method for bitmap or directly method such as assigned frequency band position identify this band information.For example, set up in the signaling, identify the band information of HeNB with the mode of bitmap at RRC:
CQI-ReportPeriodic::＝ CHOICE{
release NULL，
setup SEQUENCE{
cqi-PUCCH-ResourceIndex INTEGER(0..1185)，
cqi-pmi-ConfigIndex INTEGER(0..1023)，
cqi-FormatIndicatorPeriodic CHOICE{
widebandCQI NULL，
subbandCQI SEQUENCE{
k INTEGER(1..4)
}
}，
ri-ConfigIndex INTEGER(0..1023)?OPTIONAL，--Need?OR
simultaneousAckNackAndCQI BOOLEAN
hnb-FreqBandInfo BIT?STRING(SIZE(N))
}
}
Wherein, the N value is by the decision of the system bandwidth of macrocell size, bit can be set be at 1 o'clock and represent available, is to represent unavailablely at 0 o'clock, bit also can be set be at 0 o'clock and represent available, is to represent unavailable at 1 o'clock.
For example, set up in the signaling, identify the band information of HeNB with the mode of directly indication at RRC:
CQI-ReportPeriodic::＝ CHOICE{
release NULL，
setup SEQUENCE{
cqi-PUCCH-ResourceIndex INTEGER(0..1185)，
cqi-pmi-ConfigIndex INTEGER(0..1023)，
cqi-FormatIndicatorPeriodic CHOICE{
widebandCQI NULL，
subbandCQI SEQUENCE{
k INTEGER(1..4)
}
}，
ri-ConfigIndex INTEGER(0..1023)?OPTIONAL，--Need?OR
simultaneousAckNackAndCQI BOOLEAN
hnb-AvRBNum Integer(M)
hnb-FreqBandInfo ENUM(RB_0，RB_1，.....RB_M)
}
}
Wherein, M is the number of the spendable R B of HeNB, and the hnb-FreqBandInfo field represents to use the sequence number of RB resource with the mode of enumerating.
Step 403:UE measures the frequency band of HeNB.
UE can obtain the band information that wherein comprises after receiving the signaling message of the rrc layer that HeNB sends, and learns the frequency band that HeNB uses.When needs UE feedback CQI, UE measures the frequency band of band information indication.
UE can measure the employed frequency band of HeNB after receiving the CQI control signaling of HeNB transmission.For example, UE receives the rrc layer control signaling that HeNB sends, and requires UE feedback CQI, and then UE can periodically measure the employed frequency band of HeNB; If UE receives the PDCCH control signaling that HeNB sends, require UE feedback CQI, then UE can carry out the aperiodicity measurement to the employed frequency band of HeNB.
Step 404:UE feeds back to HeNB with the CQI that measures.
According to the CQI control signaling difference that UE receives, UE can periodicity or aperiodicity feedback CQI.For example, if the UE reception is rrc layer control signaling, then UE feeds back to HeNB with the CQI that measures behind periodic measurement and periodically, if the UE reception is PDCCH control signaling, then UE feeds back to HeNB with the CQI that measures after measurement, need not periodic feedback.
According to the embodiment of the invention, HeNB informs UE by dedicated channel with the band information that this HeNB uses after connecting with UE, can fast and flexible ground adapt to the frequency band variation of HeNB, help the scheduling of resource of sub-district and the interference coordination of minizone, and then improve the capacity of whole system.When needing UE feedback CQI, UE need not all frequency bands are measured and fed back CQI, has therefore saved interface-free resources.And, because UE need not all frequency bands are measured and fed back CQI, the power consumption that then can save UE.In addition, UE directly measures the frequency band that HeNB uses, and can obtain CQI more accurately, and by the CQI that feedback is in this way obtained, HeNB can select MCS more exactly, raising quality of service and power system capacity.HeNB informs UE by the form of broadcasting with the band information that this HeNB uses, can be so that UE is in time known the frequency band of HeNB easily.
In embodiments of the present invention, indoor access point, leather cellular base station, femtocell and femto cell such as relay station with base station functions are when communicating with the UE that covers, can the band information that femto cell uses be notified to UE by common signal channel or dedicated channel, with the method that realizes that the embodiment of the invention provides, concrete implementation method is identical with above-mentioned HeNB, gives unnecessary details no longer one by one in embodiments of the present invention.
As shown in Figure 5, the embodiment of the invention provides a kind of communication equipment 500, and this communication equipment 500 comprises:
Receiving element 510 is used to receive the band information that this HeNB that HeNB sends uses;
Measuring unit 520 is used to measure the frequency band of the band information indication that described receiving element 510 receives;
Receiving element 510 in this communication equipment 500 can receive the band information of HeNB by common signal channel method notice, for example HeNB passes through the band information that uses to UE by broadcast channel, HeNB sends broadcast to UE, comprise the band information that this HeNB uses in this broadcast, in the broadcast with the mode of bitmap or the band information of directly indicating the method for frequency band position to indicate this HeNB to use, for example, receiving element 510 can receive SIB9, adopts the method for bitmap to identify this band information among the SIB9:
SystemInformationBlockType9::＝ SEQUENCE{
hnb-Name OCTET?STRING(SIZE(1...48)) OPTINAL，--Need?OR
hnb-FreqBandInfo BIT?STRING(SIZE(N))
}
Wherein, the N value is by the decision of the system bandwidth of macrocell size, bit can be set be at 1 o'clock and represent available, is to represent unavailablely at 0 o'clock, bit also can be set be at 0 o'clock and represent available, is to represent unavailable at 1 o'clock.Perhaps receiving element 510 can receive SIB9, adopts the method for directly indication to identify this band information among the SIB9:
SystemInformationBlockType9::＝ SEQUENCE{
hnb-Name OCTET?STRING(SIZE(1...48)) OPTINAL，--Need?OR
hnb-AvRBNum Integer(M)
hnb-FreqBandInfo ENUM(RB_0，RB_1，.....RB_M)
}
Wherein, M is the number of the spendable RB of HeNB, and the hnb-FreqBandInfo field represents to use the sequence number of RB resource with the mode of enumerating.
CQI-ReportPeriodic::＝ CHOICE{?release NULL，?setup SEQUENCE{
cqi-PUCCH-ResourceIndex INTEGER(0..1185)，
cqi-pmi-ConfigIndex INTEGER(0..1023)，
cqi-FormatIndicatorPeriodic CHOICE{
widebandCQI NULL，
subbandCQI SEQUENCE{
k INTEGER(1..4)
}
}，
ri-ConfigIndex INTEGER(0..1023) OPTIONAL，--Need?OR
simultaneousAckNackAndCQI BOOLEAN
hnb-FreqBandInfo BIT?STRING(SIZE(N))
}
}
Wherein, the N value is by the decision of the system bandwidth of macrocell size, bit can be set be at 1 o'clock and represent available, is to represent unavailablely at 0 o'clock, bit also can be set be at 0 o'clock and represent available, is to represent unavailable at 1 o'clock.
Perhaps, this RRC sets up in the signaling, identifies the band information of HeNB with the mode of directly indication:
CQI-ReportPeriodic::＝ CHOICE{
release NULL，
setup SEQUENCE{
cqi-PUCCH-ResourceIndex INTEGER(0..1185)，
cqi-pmi-ConfigIndex INTEGER(0..1023)，
cqi-FormatIndicatorPeriodic CHOICE{
widebandCQI NULL，
subbandCQI SEQUENCE{
k INTEGER(1..4)
}
}，
ri-ConfigIndex INTEGER(0..1023) OPTIONAL，--Need?OR
simultaneousAckNackAndCQI BOOLEAN
hnb-AvRBNum Integer(M)
hnb-FreqBandInfo ENUM (RB_0，RB_1，.....RB_M)
}
}
Wherein, M is the number of the spendable RB of HeNB, and the hnb-FreqBandInfo field represents to use the sequence number of RB resource with the mode of enumerating.
Measuring unit 520 can be measured the frequency band that receiving element 510 receives the band information indication that comprises in the signaling message of the frequency band of the band information indication in the broadcast that obtains or rrc layer, for example, receiving the rrc layer control signaling of HeNB when communication equipment 500 after, measuring unit 520 can periodically be measured the employed frequency band of HeNB, if communication equipment 500 receives the PDCCH control signaling of HeNB, then UE can carry out the aperiodicity measurement to the frequency band that HeNB uses.Feedback unit 530 can carry out the frequency band that the 520 couples of HeNB of measuring unit use the CQI that periodic measurement or aperiodicity measure and feed back to HeNB, the CQI of HeNB service band or the subband CQI of service band can be fed back to HeNB.
The communication equipment 500 that provides according to the embodiment of the invention need not all frequency bands of HeNB are measured and fed back when feedback HeNB, therefore can save interface-free resources, also can obtain CQI more accurately, so that HeNB can select MCS more accurately.And communication equipment 500 need not all frequency bands are measured feedback, energy consumption that can received communication equipment 500.Receiving element 510 receives the band information of HeNB by the common signal channel notice, can just can in time know the band information that HeNB uses when not connecting with HeNB easily.Perhaps, after communication equipment 500 connects with HeNB, receive the band information that HeNB sends by dedicated channel, can fast and flexible ground adapt to the frequency band variation of HeNB, help the scheduling of resource of sub-district and the interference coordination of minizone, and then improve the capacity of whole system.
As shown in Figure 6, the structural representation of the another kind of communication equipment 600 that provides for the embodiment of the invention, this communication equipment 600 comprises:
Transmitting element 610 is used for sending the band information that self uses to UE;
Receiving element 620 is used to receive the CQI that described UE sends, and described CQI feeds back measured the frequency band of described band information indication by described UE after.
This communication equipment 600 can also comprise dispensing unit 630, is used for described band information is comprised common channel messages or dedicated channel message; Described transmitting element 610 is further used for sending described common channel messages or dedicated channel message.
Dispensing unit 630 can adopt the method for bitmap or directly indicate the method for frequency band position to identify the band information that this communication equipment 600 uses among the SIB in broadcast channel, for example, can adopt the method for bitmap to identify this band information in SIB9:
SystemInformationBlockType9::＝ SEQUENCE{
hnb-Name OCTET?STRING(SIZE(1...48)) OPTINAL，--Need?OR
hnb-FreqBandInfo BIT?STRING(SIZE(N))
}
Wherein, the N value is by the decision of the system bandwidth of macrocell size, bit can be set be at 1 o'clock and represent available, is to represent unavailablely at 0 o'clock, bit also can be set be at 0 o'clock and represent available, is to represent unavailable at 1 o'clock.
Perhaps adopt the method for directly indication to identify this band information:
SystemInformationBlockType9::＝ SEQUENCE{
hnb-Name OCTET?STRING(SIZE(1...48)) OPTINAL，--Need?OR
hnb-AvRBNum Integer(M)
hnb-FreqBandInfo ENUM (RB_0，RB_1，.....RB_M)
}
Wherein, M is the number of the spendable RB of HeNB, and the hnb-FreqBandInfo field represents to use the sequence number of RB resource with the mode of enumerating.
Transmitting element 610 can be with the common channel messages of dispensing unit configuration, and for example broadcast sends to UE, comprises the HeNB of these communication equipment 600 uses of dispensing unit configuration in this broadcast.
This dispensing unit 630 also can dedicated channel message in the band information that uses of this communication equipment 600 of configuration, band information can be included in gliruRRC layer signaling in the signaling of layer 3, measure control signaling etc.Can adopt the method for bitmap or directly method such as assigned frequency band position identify this band information, for example, set up in the signaling at RRC, identify the band information of HeNB with the mode of bitmap:
CQI-ReportPeriodic::＝ CHOICE{
release NULL，
setup SEQUENCE{
cqi-PUCCH-ResourceIndex INTEGER(0..1185)，
cqi-pmi-ConfigIndex INTEGER(0..1023)，
cqi-FormatIndicatorPeriodic CHOICE{
widebandCQI NULL，
subbandCQI SEQUENCE{
k INTEGER(1..4)
}
}，
ri-ConfigIndex INTEGER(0..1023) OPTIONAL，--Need?OR
simultaneousAckNackAndCQI BOOLEAN
hnb-F?reqBandInfo BITSTRING(SIZE(N))
}
}
Wherein, the N value is by the decision of the system bandwidth of macrocell size, bit can be set be at 1 o'clock and represent available, is to represent unavailablely at 0 o'clock, bit also can be set be at 0 o'clock and represent available, is to represent unavailable at 1 o'clock.
Perhaps, can identify the band information of HeNB with the mode of direct indication:
CQI-ReportPeriodic::＝ CHOICE{
release NULL，
setup SEQUENCE{
cqi-PUCCH-ResourceIndex INTEGER(0..1185)，
cqi-pmi-ConfigIndex INTEGER(0..1023)，
cqi-FormatIndicatorPeriodic CHOICE{
widebandCQI NULL，
subbandCQI SEQUENCE{
k INTEGER(1..4)
}
}，
ri-ConfigIndex INTEGER(0..1023)OPTIONAL，--Need?OR
simultaneousAckNackAndCQI BOOLEAN
hnb-AvRBNum Integer(M)
hnb-FreqBandInfo ENUM (RB_0，RB_1，.....RB_M)
}
}
Wherein, M is the number of the spendable RB of HeNB, and the hnb-FreqBandInfo field represents to use the sequence number of RB resource with the mode of enumerating.
After UE receives the band information that transmitting element in the communication equipment 600 610 sends, when needs feedback CQI, can be periodically or aperiodicity ground will measure the frequency band of this band information indication, the CQI that obtains is fed back to communication equipment 600.
The communication equipment 600 that provides according to present embodiment, by dispensing unit 630 configuration band informations, transmitting element 610 sends to UE with band information, makes UE in the waste of measuring and can reduce during feedback CQI interface-free resources, and the energy consumption that can save UE.By common signal channel band information is sent to UE, can be so that when UE and communication equipment 600 do not connect, just can in time know the band information that communication equipment 600 uses easily.Perhaps after connecting with UE, by dedicated channel band information is sent to UE, can be so that UE adapts to the frequency band of communication equipment 600 neatly to be changed, have reason the scheduling of resource of sub-district and the interference coordination of minizone, and then improve the capacity of whole system.In addition, UE is more accurate by the CQI that the present embodiment scheme records, and communication equipment 600 can be determined MCS more accurately according to this CQI like this, improves quality of service and power system capacity.
As shown in Figure 7, the embodiment of the invention also provides a kind of communication system 70, and this communication system 70 comprises above-mentioned communication equipment 500 and communication equipment 600.This communication equipment 500 is used for the band information of these communication equipment 600 uses of communication equipment 600 transmissions; Measure the frequency band of described band information indication; The CQI that measures is fed back to described communication equipment 600.Communication equipment 600 is used for sending the band information that this communication equipment 600 uses self to communication equipment 500; Receive the CQI that described communication equipment 500 sends, send behind the frequency band of described CQI by the described band information indication of described communication equipment 500 measurements.The scheme that communication equipment 500 in the embodiment of the invention and communication equipment 600 can use said method embodiment to provide.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each execution mode of the present invention.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (11)
1. method for feedback of channel quality indication comprises:
Subscriber equipment receives the band information of this femto cell use of femto cell transmission;
Measure the frequency band of described band information indication;
The channel quality indication of measuring is fed back to described femto cell.
2. method according to claim 1 is characterized in that, described band information is sent by common signal channel or dedicated channel by described femto cell.
3. method according to claim 2 is characterized in that, described band information is sent by common signal channel by described femto cell and comprises:
Described band information is included in the broadcast of described femto cell transmission.
4. method according to claim 2 is characterized in that, described band information is sent by dedicated channel by described femto cell and comprises:
Described band information is included in wireless three signalings layer by layer of described femto cell transmission.
5. a communication equipment is characterized in that, comprising:
Receiving element is used to receive the band information that this femto cell that femto cell sends uses;
Measuring unit is used to measure the frequency band of the band information indication that described receiving element receives;
Feedback unit, the channel quality indication that is used for described measuring unit is measured feeds back to described femto cell.
6. communication equipment according to claim 5 is characterized in that, described receiving element is further used for receiving the band information that described femto cell sends by common signal channel or dedicated channel.
7. a method for feedback of channel quality indication is characterized in that, comprising:
Femto cell sends the band information that this femto cell self uses to subscriber equipment;
Receive the channel quality indication that described subscriber equipment sends, described channel quality indication is fed back measured the frequency band of described band information indication by described subscriber equipment after.
8. method according to claim 7 is characterized in that, described femto cell sends described band information by common signal channel or dedicated channel to described subscriber equipment.
9. a communication equipment is characterized in that, comprising:
Transmitting element is used for sending the band information that self uses to subscriber equipment;
Receiving element is used to receive the channel quality indication that described subscriber equipment sends, and described channel quality indication is fed back measured the frequency band of described band information indication by described subscriber equipment after.
10. communication equipment according to claim 9 is characterized in that, this communication equipment also comprises:
Dispensing unit is used for described band information is included in the signaling message of broadcast or radio resource control layer;
Described transmitting element is further used for sending the signaling message of described broadcast or radio resource control layer.
11. a communication system comprises claim 5 or 6 described communication equipments and claim 9 or 10 described communication equipments.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102388557A CN102118234A (en) | 2009-12-30 | 2009-12-30 | Channel quality indicator (CQI) feedback method, communication equipment and communication system |
| PCT/CN2010/079568 WO2011079698A1 (en) | 2009-12-30 | 2010-12-08 | Channel quality indication feedback method, communication device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102388557A CN102118234A (en) | 2009-12-30 | 2009-12-30 | Channel quality indicator (CQI) feedback method, communication equipment and communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102118234A true CN102118234A (en) | 2011-07-06 |
Family
ID=44216845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102388557A Pending CN102118234A (en) | 2009-12-30 | 2009-12-30 | Channel quality indicator (CQI) feedback method, communication equipment and communication system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102118234A (en) |
| WO (1) | WO2011079698A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271031A (en) * | 2011-08-09 | 2011-12-07 | 中兴通讯股份有限公司 | Method and system for feeding back channel information |
| CN102307083A (en) * | 2011-08-12 | 2012-01-04 | 电信科学技术研究院 | Aperiodic feedback of CSI (channel state information) as well as scheduling method, device and system thereof |
| CN102355338A (en) * | 2011-08-11 | 2012-02-15 | 电信科学技术研究院 | Method and device for transmitting channel information |
| CN105099603A (en) * | 2014-04-28 | 2015-11-25 | 北京三星通信技术研究有限公司 | Channel state information report method and device |
| WO2017206573A1 (en) * | 2016-05-30 | 2017-12-07 | 华为技术有限公司 | Cqi measurement method, device and wireless communication system |
| CN110635882A (en) * | 2018-06-25 | 2019-12-31 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN110784932A (en) * | 2018-07-31 | 2020-02-11 | 维沃移动通信有限公司 | Random access method, terminal equipment and network equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101056156A (en) * | 2006-04-14 | 2007-10-17 | 华为技术有限公司 | A channel quality feedback method and its user terminal and system |
| CN101133615A (en) * | 2005-01-05 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting/receiving channel quality information in a communication system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009026768A1 (en) * | 2007-08-31 | 2009-03-05 | Fujitsu Limited | Wireless communication system and wireless communication method |
| CN101621359A (en) * | 2008-07-04 | 2010-01-06 | 华为技术有限公司 | Method for transmitting channel quality instruction, device and system thereof |
| CN101426225B (en) * | 2008-12-09 | 2010-09-29 | 中兴通讯股份有限公司 | Method for uploading channel quality indication report by terminal |
-
2009
- 2009-12-30 CN CN2009102388557A patent/CN102118234A/en active Pending
-
2010
- 2010-12-08 WO PCT/CN2010/079568 patent/WO2011079698A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133615A (en) * | 2005-01-05 | 2008-02-27 | 三星电子株式会社 | Apparatus and method for transmitting/receiving channel quality information in a communication system |
| CN101056156A (en) * | 2006-04-14 | 2007-10-17 | 华为技术有限公司 | A channel quality feedback method and its user terminal and system |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271031A (en) * | 2011-08-09 | 2011-12-07 | 中兴通讯股份有限公司 | Method and system for feeding back channel information |
| CN102271031B (en) * | 2011-08-09 | 2018-02-06 | 中兴通讯股份有限公司 | A kind of method and system of feedback of channel information |
| CN102355338A (en) * | 2011-08-11 | 2012-02-15 | 电信科学技术研究院 | Method and device for transmitting channel information |
| CN102355338B (en) * | 2011-08-11 | 2014-04-02 | 电信科学技术研究院 | Method and device for transmitting channel information |
| CN102307083A (en) * | 2011-08-12 | 2012-01-04 | 电信科学技术研究院 | Aperiodic feedback of CSI (channel state information) as well as scheduling method, device and system thereof |
| CN105099603B (en) * | 2014-04-28 | 2020-07-10 | 北京三星通信技术研究有限公司 | Method and device for reporting channel state information |
| CN105099603A (en) * | 2014-04-28 | 2015-11-25 | 北京三星通信技术研究有限公司 | Channel state information report method and device |
| US10848999B2 (en) | 2014-04-28 | 2020-11-24 | Samsung Electronics Co., Ltd | Method and apparatus for reporting channel state information |
| CN107453851A (en) * | 2016-05-30 | 2017-12-08 | 华为技术有限公司 | A kind of CQI measuring methods, device and wireless communication system |
| CN107453851B (en) * | 2016-05-30 | 2020-02-14 | 华为技术有限公司 | CQI measuring method, device and wireless communication system |
| WO2017206573A1 (en) * | 2016-05-30 | 2017-12-07 | 华为技术有限公司 | Cqi measurement method, device and wireless communication system |
| US11082190B2 (en) | 2016-05-30 | 2021-08-03 | Huawei Technologies Co., Ltd. | CQI measurement method, apparatus, and wireless communications system |
| CN110635882A (en) * | 2018-06-25 | 2019-12-31 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN110635882B (en) * | 2018-06-25 | 2020-10-02 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN110784932A (en) * | 2018-07-31 | 2020-02-11 | 维沃移动通信有限公司 | Random access method, terminal equipment and network equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011079698A1 (en) | 2011-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10470174B2 (en) | Trigger frame in wireless local area network | |
| US9571245B2 (en) | Method, device and user equipment for transmitting multi-cell scheduling information | |
| CN201699996U (en) | Wireless transmitting and receiving unit | |
| CN107534990B (en) | Selective distribution of system information for MTC | |
| KR100949287B1 (en) | Apparatus and method for processing bandwidth request in a multi-hop relay broadband wireless access communication system | |
| US8971234B2 (en) | Radio system and radio communication method | |
| US20150029891A1 (en) | Methods for configuring channel state information measurement in a communications system and communications apparatus utilizing the same | |
| CN102118234A (en) | Channel quality indicator (CQI) feedback method, communication equipment and communication system | |
| CN102484573B (en) | Cell selection method, device and system for mimo transmission | |
| JP2018511277A (en) | Communications system | |
| US9036533B2 (en) | Wireless communication system, and base station and relay station for the wireless communication system | |
| CN103380582A (en) | Method and apparatus for efficiently controlling inter-cell interference power in a wireless communication system | |
| CN103718514A (en) | Enhanced local access in mobile communications | |
| CN109150483B (en) | Parameter determination method, base station and user equipment | |
| KR20130101078A (en) | Channel state information measurement and reporting | |
| EP2826169B1 (en) | Interference management in the heterogeneous network | |
| CN103188797A (en) | Method for changing up and down TDD configuration | |
| CN104662969A (en) | System and method for configuring channel state information in a communications system | |
| US20160037538A1 (en) | System and method for interference coordination between communications nodes | |
| KR20130063031A (en) | Methods and apparatus for joint scheduling of peer-to-peer links and wireless wide area network links in cellular networks | |
| CN103096375B (en) | Antenna system and wherein receive the method for reporting of power | |
| CN102387525A (en) | Carrier wave configuring method, device and system | |
| JP2016541170A (en) | Mobility management method, apparatus and system | |
| KR20190005828A (en) | Communication method and communication device | |
| US9433024B2 (en) | Communication method of terminal and communication method of base station for direct communication link between terminals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110706 |