Summary of the invention
The embodiment of the present invention provides a kind of method, system and equipment of transmission of channel quality information, in order to solve the base station existing in prior art, send configuration information, to UE to base station, complete in the time period of carrier wave configuration operation, may there is inconsistent situation for the understanding of CSI feedback in base station and UE, make base station cannot correctly receive the problem of CSI.
The method of a kind of transmission of channel quality information that the embodiment of the present invention provides, comprising:
Terminal is the correct configuration information that receives network side transmission in descending sub frame n;
Terminal, before subframe n+k or subframe n+k, adopts with configuration identical before subframe n and sends CSI to network side;
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
The method of the another kind of transmission of channel quality information that the embodiment of the present invention provides, comprising:
Network side sends configuration information to terminal in descending sub frame n;
Network side, before subframe n+k or subframe n+k, adopts the CSI that receives self terminal with configuration identical before subframe n;
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
The equipment of a kind of transmission of channel quality information that the embodiment of the present invention provides, comprising:
Configuration information receiver module, for the configuration information sending at the correct reception of descending sub frame n network side;
CSI sending module, for before subframe n+k or subframe n+k, adopts with configuration identical before subframe n and sends CSI to network side;
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
The equipment of the another kind of transmission of channel quality information that the embodiment of the present invention provides, comprising:
Configuration information sending module, for sending configuration information at descending sub frame n to terminal;
CSI receiver module, for before subframe n+k or subframe n+k, adopts the CSI that receives self terminal with configuration identical before subframe n;
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
The system of a kind of transmission of channel quality information that the embodiment of the present invention provides, comprising:
Network equipment, for sending configuration information at descending sub frame n, before subframe n+k or subframe n+k, adopts with configuration identical before subframe n and receives CSI;
Terminal, at the correct configuration information that receives of descending sub frame n, before subframe n+k or subframe n+k, adopts with configuration identical before subframe n and sends CSI;
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
Owing to sending configuration information in base station, to UE to base station, complete in the time period of carrier wave configuration operation, terminal is carried out CSI according to the configuration that is configured the front activation of operation carrier wave and is reported, base station and UE are consistent for the understanding of CSI feedback, thereby guarantee that base station can correctly receive SCI, improved the performance of base station.
Embodiment
If embodiment of the present invention terminal is correct in descending sub frame n, receive the configuration information that network side sends, and needed to send CSI before subframe n+k or subframe n+k, adopt with configuration identical before subframe n and send CSI to network side.Owing to sending configuration information in base station, to terminal to base station, complete in the time period of carrier wave configuration operation, terminal is carried out CSI according to the configuration that is configured the front activation of operation carrier wave and is reported, and base station and terminal is consistent for the understanding of CSI feedback, thereby guarantees that base station can correctly receive SCI.
Wherein, the scheme of the embodiment of the present invention can be applied in LTE-A system, can also be applied in other systems that contain multicarrier.
In declarative procedure below, first from the cooperation of network side and end side, implement to describe, finally from the enforcement of network side and end side, describe respectively, but this does not also mean that the two must coordinate enforcement, in fact, when network side and end side, separate while implementing, also solved respectively in network side, the existing problem of end side, when just the two is combined with, can obtain better technique effect.
As shown in Figure 2, the system of embodiment of the present invention transmission of channel quality information comprises: network equipment 10 and terminal.
Network equipment 10, for sending configuration information at descending sub frame n to terminal 20, before subframe n+k or subframe n+k, adopts the CSI that receives self terminal 20 with configuration identical before subframe n.
Terminal 20, at the correct configuration information receiving from network equipment 10 of descending sub frame n, before subframe n+k or subframe n+k, adopts with configuration identical before subframe n and sends CSI.
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
If terminal 20 is correct in descending sub frame n, receive configuration information, and before subframe n+k or subframe n+k, need to send CSI, adopt with configuration identical before subframe n and send CSI to network equipment 10.
If terminal 20 is correct in descending sub frame n, receive configuration information, and after subframe n+k, need to send CSI, according to the configuration information of receiving, to network equipment 10, send CSI;
Accordingly, network side, after subframe n+k, receives the CSI of self terminal 20 according to the configuration information that sends to terminal 20.
The configuration information of the embodiment of the present invention comprises a kind of or whole in carrier activation message and carrier wave deexcitation message.
Terminal 20, after receiving configuration information, need to be returned to feedback information to network equipment 10 according to reception result (correct or wrong).If correctly received, and terminal 20 had completed carrier wave configuration according to configuration information before subframe n+k or subframe n+k, because network equipment 10 does not also correctly receive feedback information, network equipment 10 can be according to the CSI that sends configuration information configuration receiving terminal before, so terminal 20 need to send CSI to network equipment 10 according to the configuration before subframe n here.
Concrete, terminal 20 reports the CSI of the activation carrier wave configuring before subframe n.
If configuration information comprises carrier activation message, terminal 20 is according to the CSI that reports the activation carrier wave configuring before subframe n.
If configuration information comprises carrier wave deexcitation message, terminal 20 is also according to the CSI that reports the activation carrier wave configuring before subframe n.
But having a kind of special circumstances is exactly that terminal carries out giving the correct time on CSI to deexcitation carrier wave, likely there is the situation of carrying out CSI measurement without available descending sub frame.Because terminal 20 reports the subframe n CSI of the activation carrier wave of configuration before, so the bit number of CSI will remain unchanged, for the deexcitation carrier wave of the descending sub frame without available, need to be by filling value to reporting bit corresponding to subframe to fill in CSI corresponding to deexcitation carrier wave.Such as can adopting the last effective value of invalid value or preservation or other particular values, terminal 20 fills.
Wherein, terminal 20, after receiving configuration information, need to be returned to feedback information to network equipment 10 according to reception result (correct or wrong).If correctly received, and terminal 20 has completed carrier wave configuration according to configuration information after subframe n+k, because network equipment 10 has correctly received feedback information, network equipment 10 can be according to the CSI of the configuration information receiving terminal sending, so terminal 20 need to send CSI to network equipment 10 according to the configuration (configuration information of receiving) after subframe n here.
Concrete, terminal 20 reports the CSI of the activation carrier wave after being configured according to the configuration information receiving, and reports the CSI of the activation carrier wave configuring after subframe n.
Preferably, if be applied in FDD system, k=8.Which subframe the k here represents, such as n+8 represents subframe n the 8th subframe afterwards.
If be applied in TDD system, k=k
1+ k
2; K wherein
1it is descending sub frame and the number of sub frames at the corresponding sub-frame of uplink interval of carrying out feedback information; k
2it is the processing delay (being generally 4) of the predefined network side of system.Here k
1represent the length through how many subframes; k
2unit identical with the long measure of subframe, at present the long measure of subframe is ms, k
2unit be also ms.Such as k
110, k
25, subframe n+k
1+ k
2after expression subframe n, the length of 10 subframes is added 5ms.
The value of concrete k1 is relevant with uplink-downlink configuration, and specifically having can be referring to table 1.
Table 1
Wherein, CSI comprises: CQI (Channel Quality Indicator, channel quality indication), PMI (Precoding Matrix Index, channel condition information), RI (Resource Identifier, resource identification) three category informations.
At present 2 kinds of CSI of system support report, cycle CSI report with aperiodic CSI report, specifically can be referring to agreement TS36.213.
For the cycle, CSI reports, and base station is wanted cycle that semi-static configuration UE reports, is offset and reports pattern.Different downlink transfer patterns, corresponding different cycle CSI reports pattern:
Transmission 1:Modes 1-0,2-0;
Transmission 2:Modes 1-0,2-0;
Transmission 3:Modes 1-0,2-0;
Transmission 4:Modes 1-1,2-1;
Transmission 5:Modes 1-1,2-1;
Transmission 6:Modes 1-1,2-1;
Transmission 7:Modes 1-0,2-0;
Transmission 8:Modes 1-1,2-1 (UE configuration PMI/RI reporting); Modes 1-0,2-0 (UE does not configure PMI/RI reporting);
Transmission 9:Modes 1-1,2-1UE configuration PMI/RI reporting); Modes 1-0,2-0 (UE does not configure PMI/RI reporting).
For aperiodic, CSI reports, and base station is triggered UE by descending scheduling signaling and reported, but reports pattern by the semi-static configuration of base station high-level signaling.Different downlink transfer patterns, corresponding different CSI aperiodic reports pattern:
1. transmission mode 1:Mode 2-0,3-0;
2. transmission mode 2:Mode 2-0,3-0;
3. transmission mode 3:Mode 2-0,3-0;
4. transmission mode 4:Mode 1-2,, 2-2,3-1;
5. transmission mode 5:Mode 3-1;
6. transmission mode 6:Mode 1-2,2-2,3-1;
7. transmission mode 7:Mode 2-0,3-0;
8. transmission mode 8:Modes 1-2,2-2,3-1 (UE configuration PMI/RI reporting); Modes2-0,3-0 (UE does not configure PMI/RI reporting);
9. transmission mode 9:Modes 1-2,2-2,3-1 (UE configuration PMI/RI reporting); Modes 2-0,3-0 (UE does not configure PMI/RI reporting).
It should be noted that, the embodiment of the present invention is not limited to above-mentioned two kinds and reports mode, and other can report the mode of CSI to be all suitable for the embodiment of the present invention.
Wherein, the network equipment 10 of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.
Based on same inventive concept, a kind of method of base station, terminal and transmission of channel quality information is also provided in the embodiment of the present invention, because the principle that these equipment are dealt with problems with method is similar to the system of transmission of channel quality information, therefore the enforcement of these equipment and method can, referring to the enforcement of system, repeat part and repeat no more.
As shown in Figure 3, the base station of the embodiment of the present invention comprises: configuration information sending module 100 and CSI receiver module 110.
Configuration information sending module 100, for sending configuration information at descending sub frame n to terminal.
CSI receiver module 110, for before subframe n+k or subframe n+k, adopts the CSI that receives self terminal with configuration identical before subframe n.
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
Preferably, after subframe n+k, CSI receiver module 110 receives the CSI of self terminal according to configuration information.
As shown in Figure 4, the terminal of the embodiment of the present invention comprises: configuration information receiver module 200 and CSI sending module 210.
Configuration information receiver module 200, for the configuration information sending at the correct reception of descending sub frame n network side.
CSI sending module 210, for before subframe n+k or subframe n+k, adopts with configuration identical before subframe n and sends CSI to network side;
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
Preferably, after subframe n+k, CSI sending module 210 sends CSI according to configuration information to network side.
Concrete, terminal is after subframe n+k, and CSI sending module 210 reports the CSI of the activation carrier wave after being configured according to the configuration information receiving.
Wherein, configuration information comprises: carrier activation message and/or carrier wave deexcitation message.
Preferably, CSI sending module 210 reports the CSI of the activation carrier wave configuring before subframe n.
If the configuration messages in subframe n comprises carrier wave deexcitation message; Preferably, CSI sending module 210, before subframe n+k or subframe n+k, carries out giving the correct time on CSI to deexcitation carrier wave, if carry out CSI measurement without available descending sub frame, by filling value to reporting bit corresponding to subframe to fill in CSI.
As shown in Figure 5, the method for embodiment of the present invention end side transmission of channel quality information comprises the following steps:
Step 501, terminal be the correct configuration information that receives network side transmission in descending sub frame n.
Step 502, terminal, before subframe n+k or subframe n+k, adopt with configuration identical before subframe n and send CSI to network side.
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
In step 501, if terminal is correct in descending sub frame n, receive configuration information, and in step 502 before subframe n+k or subframe n+k, need to send CSI, adopt with configuration identical before subframe n to network equipment 10 transmission CSI.
In step 501, if terminal 20 is correct in descending sub frame n, receive configuration information, and in step 502 after subframe n+k, need to send CSI, according to the configuration information of receiving, to network equipment 10, send CSI;
The configuration information of the embodiment of the present invention comprises a kind of or whole in carrier activation message and carrier wave deexcitation message.
In step 501, terminal, after receiving configuration information, need to be returned to feedback information to network equipment according to reception result (correct or wrong).If correctly received, and terminal had completed carrier wave configuration according to configuration information before subframe n+k or subframe n+k, because network equipment does not also correctly receive feedback information, network equipment can be according to the CSI that sends configuration information configuration receiving terminal before, so in step 502, terminal need to send CSI to network equipment according to the configuration before subframe n.
Concrete, the CSI of the activation carrier wave of configuration before terminal to report subframe n.
If configuration information comprises carrier activation message, terminal is according to the CSI that reports the activation carrier wave configuring before subframe n.
If configuration information comprises carrier wave deexcitation message, terminal 20 is also according to the CSI that reports the activation carrier wave configuring before subframe n.
But having a kind of special circumstances is exactly that terminal carries out giving the correct time on CSI to deexcitation carrier wave, likely there is the situation of carrying out CSI measurement without available descending sub frame.CSI due to the activation carrier wave of configuration before terminal to report subframe n, so the bit number of CSI will remain unchanged, for the deexcitation carrier wave of the descending sub frame without available, need to be by filling value to reporting bit corresponding to subframe to fill in CSI corresponding to deexcitation carrier wave.Such as can adopting the last effective value of invalid value or preservation or other particular values, terminal fills.
In step 501, terminal, after receiving configuration information, need to be returned to feedback information to network equipment according to reception result (correct or wrong).If correctly received, and terminal has completed carrier wave configuration according to configuration information after subframe n+k, because network equipment has correctly received feedback information, network equipment 10 can be according to the CSI of the configuration information receiving terminal sending, so in step 502, terminal need to send CSI to network equipment according to the configuration (configuration information of receiving) after subframe n.
Concrete, the CSI of the activation carrier wave after terminal to report is configured according to the configuration information receiving, reports the subframe n CSI of the activation carrier wave of configuration afterwards.
Preferably, if be applied in FDD system, k=8.Which subframe the k here represents, such as n+8 represents subframe n the 8th subframe afterwards.
If be applied in TDD system, k=k
1+ k
2; K wherein
1it is descending sub frame and the number of sub frames at the corresponding sub-frame of uplink interval of carrying out feedback information; k
2it is the processing delay of the predefined network side of system.Here k
1represent the length through how many subframes; k
2unit identical with the long measure of subframe, at present the long measure of subframe is ms, k
2unit be also ms.Such as k
110, k
25, subframe n+k
1+ k
2after expression subframe n, the length of 10 subframes is added 5ms.
The value of concrete k1 is relevant with uplink-downlink configuration, and specifically having can be referring to table 1.
As shown in Figure 6, the method for embodiment of the present invention base station side transmission of channel quality information comprises the following steps:
Step 601, network side send configuration information to terminal in descending sub frame n.
Step 602, network side, before subframe n+k or subframe n+k, adopt the CSI that receives self terminal with configuration identical before subframe n.
Wherein, k is not less than the processing time delay that terminal completes carrier wave configuration operation, and is not less than the processing time delay sum that terminal receives configuration information the processing time delay of feeding back and network side reception demodulation feedback information.
Preferably, if network side was not received CSI before subframe n+k or subframe n+k, after subframe n+k, network side receives the CSI of self terminal according to configuration information.
Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the method for a new transmission of channel quality information, first perform step 601, then perform step 501 and step 502, finally perform step 602.
As shown in Figure 7, embodiment of the present invention FDD system is carried out in schematic diagram that CSI reports, and terminal, before subframe n+k or subframe n+k, and reported the CSI of the activation carrier wave before reshuffling before completing carrier wave deexcitation; After completing carrier wave deexcitation, and before subframe n+k or subframe n+k, for deexcitation carrier wave, report invalid value, for other carrier waves, report the CSI before reshuffling;
Terminal, after subframe n+k, and before next subframe n+k or subframe n+k, reports the CSI of the carrier wave of the configuration information configuration of receiving before subframe n+k.
As shown in Figure 8, embodiment of the present invention TDD system is carried out in schematic diagram that CSI reports, and terminal is at subframe n+k
1+ k
2or subframe n+k
1+ k
2before, and before completing carrier wave deexcitation, report the CSI of the activation carrier wave before reshuffling; After completing carrier wave deexcitation, and at subframe n+k
1+ k
2or subframe n+k
1+ k
2before, for deexcitation carrier wave, report invalid value, for other carrier waves, report the CSI before reshuffling;
Terminal is at subframe n+k
1+ k
2afterwards, and at next subframe n+k
1+ k
2or subframe n+k
1+ k
2before, report subframe n+k
1+ k
2the CSI of the carrier wave of the configuration information configuration of before receiving.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Owing to sending configuration information in base station, to UE to base station, complete in the time period of carrier wave configuration operation, terminal is carried out CSI according to the configuration that is configured the front activation of operation carrier wave and is reported, base station and UE are consistent for the understanding of CSI feedback, thereby guarantee that base station can correctly receive SCI, improved the performance of base station.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.