CN102238611A - Method for reporting channel quality of control area and method and device for configuring control channel - Google Patents
Method for reporting channel quality of control area and method and device for configuring control channel Download PDFInfo
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- CN102238611A CN102238611A CN2010101644756A CN201010164475A CN102238611A CN 102238611 A CN102238611 A CN 102238611A CN 2010101644756 A CN2010101644756 A CN 2010101644756A CN 201010164475 A CN201010164475 A CN 201010164475A CN 102238611 A CN102238611 A CN 102238611A
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Abstract
The invention discloses a method for reporting channel quality of a control area and a method and device for configuring a control channel, wherein the method for reporting the channel quality of the control area comprises the steps of: measuring the channel quality of the control area; and reporting the measured result of the channel quality to a network side, or reporting the number of control channel elements (CCE) used by a control channel, wherein the number is obtained through mapping according to the measured result. The method for configuring the control channel comprises the steps of: receiving the measured result information of the channel quality of the control area or the number information of the CCE, reported by a terminal; and according to the received measured result information of the channel quality of the control area or the number of the CCE, allocating CCEs with a required use number for the control channel of the terminal. According to the invention, the transmission reliability of the control channel can be improved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of control area channel quality report method and device thereof, and a kind of control channel collocation method and device thereof.
Background technology
In 3GPP LTE Release 8 systems, the length of a descending sub frame (subframe) is that 1ms is (when adopting normal cyclic prefix, comprise 14 OFDM symbols, wherein OFDM is the English abbreviation of Orthogonal Frequency Division Multiplexing, be orthogonal frequency division multiplexi), comprise control area (PDCCH, i.e. Physical Downlink Control Channel) and data area (PDSCH, be Physical Downlink Shared Channel), its structure is as shown in Figure 1.
(N can be 1 to the top n of each subframe, 2,3 or 4) symbol can be used as the control area, comprise PCFICH (Physical Control Format Indicator Channel), PDCCH, PHICH (physical mixed ARQ indicating channel), RS (reference signal) and RE (the Resource Element that some are empty, Resource Unit, a RE occupies a subcarrier on frequency domain, occupy an OFDM symbol on the time domain) etc.
Wherein, PDCCH is user's special use, and the resource of each PDCCH can be dispersed on the symbol of whole bandwidth and whole control area, can take 1,2,4 or 8 CCE (ControlChannel Element, be the control channel unit, each CCE comprises 36 RE).PDCCH adopts QPSK (Quadrature Phase-Shift Keying, Quadrature Phase Shift Keying) mode to modulate.
The transmission reliability of PDCCH is had relatively high expectations, should be less than 1% such as the error rate of PDCCH transmission.But how to select not relevant solution of CCE quantity and regulation when the base station disposes PDCCH for the user at present, therefore, can't guarantee the reliability of PDCCH transmission.
Summary of the invention
The embodiment of the invention provides a kind of control channel collocation method and device thereof, in order to guarantee the transmission reliability of control channel.
The control channel collocation method that the embodiment of the invention provides may further comprise the steps:
The channel quality measurements information of the control area that receiving terminal reports or CCE quantity information;
According to the channel quality measurements information or the CCE quantity information of the control area that receives, for the control channel of described terminal distributes employed CCE quantity.
The base station that the embodiment of the invention provides comprises:
Receiving element is used for the channel quality measurements information or the CCE quantity information of the control area that receiving terminal reports;
Allocation units are used for channel quality measurements information or CCE quantity information according to the control area that receives, for the control channel of described terminal distributes employed CCE quantity.
The above embodiment of the present invention, network side is according to the channel quality measurements information or the CCE quantity of the control area of terminal to report, for the control channel of terminal selects CCE quantity with the control area channel quality coupling of this terminal, thereby can select appropriate C CE quantity according to terminal control channel quality adaptation, or select CCE according to the needs of terminal, with the transmission performance of assurance control channel, and can take into account resource utilization ratio simultaneously.
The embodiment of the invention also provides a kind of control area channel quality report method and device thereof, and the CCE quantity shared for the base station configuration control channel provides foundation.
The control area channel quality report method that the embodiment of the invention provides comprises:
Measure the channel quality of control area;
To network side reporting channel quality measurements, perhaps report the employed control channel of the control channel unit CCE quantity that mapping obtains according to measurement result.
The terminal that the embodiment of the invention provides comprises:
Measuring unit is used to measure the channel quality of control area;
Report the unit, be used for, perhaps report the employed control channel of the control channel unit CCE quantity that mapping obtains according to measurement result to network side reporting channel quality measurements.
The above embodiment of the present invention, by measuring the channel quality of control area, to network side reporting channel quality measurements information or CCE quantity, thereby make network side can learn terminal current control channel quality or learn needed CCE quantity under the current channel quality condition, and can be further with this foundation as the employed CCE quantity of distribution control channel, thereby can select appropriate C CE quantity according to terminal control channel quality adaptation, with the transmission performance of assurance control channel, and can take into account resource utilization ratio simultaneously.
Description of drawings
Fig. 1 is the descending sub frame schematic diagram of LTE R8 system in the prior art;
The schematic flow sheet of the terminal to report control channel quality that Fig. 2 provides for the embodiment of the invention;
Fig. 3 a is the mapping relations schematic diagram of end side configuration in the embodiment of the invention;
Fig. 3 b is the mapping relations schematic diagram of network side configuration in the embodiment of the invention;
The network side that Fig. 4 provides for the embodiment of the invention is the schematic flow sheet of terminal configuration PDCCH;
The structural representation of the terminal equipment that Fig. 5, Fig. 6, Fig. 7 provide for the embodiment of the invention;
The structural representation of the base station equipment that Fig. 8 provides for the embodiment of the invention.
Embodiment
The problems referred to above at existing presentation technology existence, for guaranteeing the reliability of control channel transmission, the embodiment of the invention has proposed the technical scheme according to the CCE quantity of user's control channel quality requirements adaptive configuration user's control channel, thereby improves the control channel transmission reliability.
In the embodiment of the invention, on the one hand, terminal has the channel quality measurement and the reporting ability of control area, and on the other hand, the base station can be the CCE quantity of the adaptively selected control channel of terminal according to the channel quality of the control area of terminal to report.
Be example with 3GPP LTE Release 8 systems below, in conjunction with the accompanying drawing in the embodiments of the invention, the technical scheme in the embodiments of the invention is clearly and completely described, obviously, the embodiments described below only are the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of embodiments of the invention protection.
Referring to Fig. 2, the schematic flow sheet of the terminal to report control area channel quality that provides for the embodiment of the invention.This flow process mainly may further comprise the steps:
Generally, top n (as N=3) OFDM symbol in the descending sub frame of 3GPP LTE Release 8 systems is used for transmitting control channel, and the CCE of control channel is distributed on the full bandwidth of OFDM symbol, therefore, terminal can be measured the broad-band channel quality of the top n OFDM symbol of descending sub frame in the present embodiment.Terminal also can be measured the indicated N of PCFICH, and (N can be 1,2,3 or 4) individual OFDM symbol but do not comprise the broad-band channel quality of the RE that PHICH is shared, wherein, PCFICH is 2 bit values, is used to represent that PDCCH takies preceding several OFDM symbols of a subframe.
In this step, terminal can report the channel quality parameter that measures (as SIR, i.e. signal-to-jamming ratio) base station.In order to save signaling consumption, preferably, the channel quality parameter (as SIR) that measures can be mapped as the CQI (Channel Quality Indication, CQI) of 2 bits (or other number of bits), terminal reports the base station with the CQI that mapping obtains.Terminal can be carried on CQI among the PDCCH DCI (Downlink Control Information, Downlink Control Information) of specific format and report the base station, and the DCI form that is adopted can be arranged by system.
In the another embodiment of the present invention, can be provided with the mapping relations table of the channel quality parameter value and the CCE quantity of control area on the terminal in advance, wherein, the employed CCE quantity of the control channel that this CCE quantity is meant terminal, according to channel quality order from high to low, pairing CCE quantity from small to large, as can being 1,2,4,8.Like this, terminal is after measuring the channel quality parameter of control area, can find corresponding CCE quantity by inquiring about this mapping relations table, and this CCE quantitatively can be offered the base station, make the base station can according to or be that the control channel of terminal distributes CCE quantity with reference to this quantity.Thereby control area channel quality condition that can be current according to terminal is the control channel distribution appropriate C CE quantity of terminal, thereby when improving the control channel transmission reliability, rationally utilizes transfer resource.
In another embodiment of the present invention, can be provided with the mapping relations table of the sign of control area channel quality parameter, the employed CCE quantity of control channel and sign CCE quantity on the terminal in advance.Wherein, according to channel quality order from high in the end, pairing CCE quantity from small to large.Fig. 3 a shows a kind of schematic diagram of mapping relations table of end side configuration, and wherein one of modulation system is an option.Each PDCCH can take 1,2,4 or 8 CCE, shown in Fig. 3 a, and the CCE quantity I ndex that different CCE quantity is corresponding different (being CCE quantity sign).The channel quality of channel quality parameter (i.e. SIR interval among the figure) representative is poor more, and its corresponding CCE quantity is many more.Adopt the sign of the CCE quantity of 2 bits in the embodiment of the invention, be enough to provide the ident value of 4 corresponding CCE quantity at above-mentioned 4 kinds of situations (being that each PDCCH can take 1,2,4 or 8 CCE), and employed signaling consumption can reduce to report CCE quantity as far as possible the time.
In this embodiment, the channel quality parameter that terminal is measured can comprise PDCCH BLER (BlockError Rate, Block Error Rate), terminal is according to the channel quality measurements of control area, determine under the situation that satisfies PDCCH performance objective value (as performance index), the minimum value of the CCE quantity that PDCCH uses, and according to the mapping relations table of this CCE quantity and configuration, obtain the CCE quantity sign corresponding, and this CCE quantity sign is reported the base station with this CCE quantity.
Generally, system can set PDCCH performance index desired value, show the PDCCH transmission reliability the bottom line that should satisfy, the maximum BLER value that allows as PDCCH, be the error probability of PDCCH transmission, can be made as 1% for 3GPP LTE Release 8 systems.In general, the employed CCE of transmission PDCCH is many more, and transmission reliability is just big more, and error probability is just more little.Terminal is according to the channel quality measurements of control area, can count under the situation that guarantees PDCCH performance objective value, the minimum number of the employed CCE of PDCCH, and according to the mapping relations table that disposes, obtain the CCE quantity I ndex value corresponding with this CCE quantity, for example, if terminal finds just can guarantee that with minimum N CCE transmission PDCCH the BLER of PDCCH is less than or equal to 1% that terminal just can obtain and N the CCE quantity I ndex value that CCE is corresponding by the query mappings relation table so.
In the various embodiments described above, the process of the channel quality of terminal to report control area can be carried out in the cycle, on call time and can specify in advance by system.
After network side (being generally the base station) receives the channel quality measurements information or CCE quantity of control area of terminal to report, can be foundation just, select the CCE of respective numbers for the PDCCH of this terminal with the channel quality measurements information or the CCE quantity of the control area of this terminal to report.
Wherein, if the base station serves as to distribute CCE according to the PDCCH that is terminal with the CCE quantity of terminal to report, then can directly determine the employed CCE quantity of PDCCH of terminal according to the CCE quantity that receives, also can adjust accordingly the CCE quantity that receives earlier, again the employed CCE quantity of PDCCH of determining terminal according to adjusted CCE quantity.Wherein, CCE quantity can be adjusted according to other factors in the base station, quantity as the shared CCE of the PDCCH that can increase or reduce this terminal according to the quantity of current residual CCE number and the terminal of not dispatching, for example, current residual CCE number satisfies the quantity of CCE of the PDCCH of this terminal of increase (or some terminal) that can be suitable when not being scheduled terminal far away, on the contrary, can not satisfy the quantity of CCE of the PDCCH of this terminal of minimizing (or some terminal) that can be suitable when not being scheduled terminal as current residual CCE number; Perhaps increase or reduce the quantity of the shared CCE of the PDCCH of this terminal according in the past experience.
If the base station serves as to distribute CCE according to the PDCCH that is terminal with the channel quality measurements information (shining upon the CQI that obtains as channel quality parameter or according to channel quality parameter) of terminal to report, then network side can be provided with the mapping relations table in advance, to describe the corresponding relation of CQI (or channel quality parameter) and CCE quantity, make the base station can be according to this mapping relations table, and the CQI of terminal to report (or channel quality parameter) obtains corresponding CCE quantity, and the PDCCH that is terminal according to this CCE quantity distributes CCE again.Wherein, channel quality parameter can be SIR (Signal to Interference Ratio, a signal interference ratio).
If the base station is designated according to being terminal with the CCE quantity of terminal to report, PDCCH distributes CCE, and then network side can be provided with the mapping relations table in advance, and shown in Fig. 3 b, wherein, channel quality is high more, and the CCE quantity of correspondence is few more.The corresponding relation that the mapping relations table of network side configuration is used for representing the CCE quantity that PDCCH takies and characterizes the sign (as the CCE quantity index of figure) of CCE quantity, make the base station can be according to this mapping relations table, and the CCE quantity of terminal to report sign obtains corresponding CCE quantity, and the PDCCH that is terminal according to this CCE quantity distributes CCE again.
As shown in Figure 4, the base station that provides of one embodiment of the present of invention is that the flow process of terminal configuration PDCCH can comprise:
The channel quality measurements information of the control area that step 410, base station receiving terminal report, CQI as the aforementioned.
In this step, the base station can be directly with the CCE quantity that finds as the shared CCE quantity of the PDCCH of this terminal; Also can further adjust this CCE quantity according to other factors again with reference to the CCE quantity that finds, and with adjusted CCE quantity as the shared CCE quantity of the PDCCH of this terminal.The base station is when adjusting CCE quantity according to other factors, can increase or reduce the quantity of the shared CCE of the PDCCH of this terminal according to the quantity of terminal of current residual CCE number and not scheduling, for example, current residual CCE number satisfies the quantity of CCE of the PDCCH of this terminal of increase (or some terminal) that can be suitable when not being scheduled terminal far away, on the contrary, can not satisfy the quantity of CCE of the PDCCH of this terminal of minimizing (or some terminal) that can be suitable when not being scheduled terminal as current residual CCE number; Perhaps increase or reduce the quantity of the shared CCE of the PDCCH of this terminal according in the past experience.After the shared CCE quantity of the PDCCH that determines terminal, chnnel coding can be carried out to PDCCH in the base station, carries out the QPSK modulation then, carries out the mapping of CCE to RE, carries out the emission of IFFT (invert fast fourier transformation) back again.
Need to prove that the mapping relations that the mapping relations table in the foregoing description is shown also can be represented by the data structure of other types.In addition, the PDCCH that relates in the foregoing description is the channel in the LTE R8 system, if the embodiment of the invention is applied to the LTE system of other communication systems or future version, then those skilled in the art should be able to adopt corresponding channel to realize the embodiment of the invention.
By above description as can be seen, the base station can be according to the CQI of the control area of terminal to report, the CQI by inquiring about pre-configured control area channel and the mapping relations table of CCE quantity, according to the current PDCCH channel quality of terminal is the PDCCH configuration of terminal and the CCE quantity of this channel quality coupling, thereby realize the CCE quantity that the control channel quality adaptation according to terminal distributes control channel to take, improve the reliability of PDCCH transmission.Further, after the base station obtains the CCE quantity corresponding with the CQI of terminal to report by the query mappings relation table, also can adjust this CCE quantity according to the current operating position of system, thus the transmission performance that has further improved resource utilization ratio and guaranteed PDCCH.
Based on identical technical conceive, the embodiment of the invention also provides a kind of terminal equipment and a kind of base station equipment.
As Fig. 5, Fig. 6, shown in Figure 7, be respectively the terminal equipment that the embodiment of the invention provides.As shown in Figure 5, this terminal equipment can comprise: measuring unit 51, report unit 52, wherein:
In the above-mentioned terminal equipment, report unit 52 directly the channel quality parameter that measures to be reported network side; Perhaps, the channel quality parameter that measures is mapped as channel quality indicator CQI, and CQI is reported network side.
As shown in Figure 6, in the above-mentioned terminal equipment, also can comprise first map unit 53, be used for mapping relations according to channel quality parameter and the employed CCE quantity of control channel, determine the pairing CCE quantity of the channel quality parameter that measures, wherein, in the mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large; Accordingly, the CCE quantity that reports unit 52 53 mappings of first map unit can be obtained reports.
As shown in Figure 7, in the above-mentioned terminal equipment, also can comprise determining unit 54, be used for determining satisfying under the control channel performance requirement desired value situation minimum value of the employed control channel of control channel unit CCE quantity according to the measurement result of measuring unit 51; Second map unit 55, the minimum value that is used for CCE quantity that determining unit 54 is determined reports, perhaps, determine the CCE quantity sign corresponding with the minimum value of described CCE quantity according to the mapping relations of the employed CCE quantity of control channel with the sign that characterizes CCE quantity; In the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large; Accordingly, the CCE quantity sign that reports unit 52 55 mappings of second map unit can be obtained reports.
In the terminal equipment shown in Figure 7, when control channel performance objective value is the maximum Block Error Rate that control channel allowed, determining unit 54 can be according to measurement result, and statistics is no more than under the situation of described maximum Block Error Rate the minimum value of the employed CCE quantity of control channel at Block Error Rate.
In above-mentioned each terminal equipment, measuring unit 51 can be measured the broad-band channel quality of the top n orthogonal frequency division multiplex OFDM symbol of descending sub frame; Perhaps, measure the top n OFDM symbol of descending sub frame but do not comprise the broad-band channel quality of the Resource Unit RE that physical mixed ARQ indicating channel PHICH takies; Wherein, N is by Physical Control Format Indicator Channel PCFICH indication, and N is 1,2,3 or 4.
In above-mentioned each terminal equipment, measuring unit 51 can be measured according to system's official hour or cycle, reports unit 52 to report according to system's official hour or cycle.
As shown in Figure 8, the base station equipment that the embodiment of the invention provides can comprise: receiving element 81, allocation units 82, wherein:
Receiving element 81 is used for the channel quality measurements information or the CCE quantity information of the control area that receiving terminal reports;
In the above-mentioned base station, allocation units 82 can be determined the CCE quantity corresponding with the channel quality measurements information that receives by inquiring about the mapping relations of the shared CCE quantity of control area channel quality information and control channel; In the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large; And, distribute the CCE of this quantity for the control channel of described terminal; Perhaps, this CCE quantity is adjusted, and distributed the CCE of adjusted quantity for the control channel of terminal.
In the above-mentioned base station, the control channel that allocation units 82 can be described terminal distributes the CCE of described quantity; Perhaps, described CCE quantity is adjusted, and distributed the CCE of adjusted quantity for the control channel of described terminal.
In the above-mentioned base station, allocation units 82 can be adjusted described CCE quantity according to control channel CCE volume residual.The adjustment mode does not repeat them here as previously mentioned.
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 embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (26)
1. a control area channel quality report method is characterized in that, comprising:
Measure the channel quality of control area;
To network side reporting channel quality measurements, perhaps report the employed control channel of the control channel unit CCE quantity that mapping obtains according to measurement result.
2. the method for claim 1 is characterized in that, describedly comprises to network side reporting channel quality measurements: directly the channel quality parameter that measures is reported network side; Perhaps, the channel quality parameter that measures is mapped as channel quality indicator CQI, and CQI is reported network side.
3. the method for claim 1 is characterized in that, shines upon the employed CCE quantity of controlled channel according to measurement result, is specially:
According to the mapping relations of channel quality parameter and the employed CCE quantity of control channel, determine the pairing CCE quantity of the channel quality parameter that measures.
4. method as claimed in claim 3 is characterized in that, in the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large.
5. the method for claim 1 is characterized in that, reports the employed control channel of the control channel unit CCE quantity that mapping obtains according to measurement result, comprising:
Determine satisfying under the control channel performance requirement desired value situation minimum value of the employed CCE quantity of control channel according to measurement result;
Report the minimum value of this CCE quantity; Perhaps,, determine the CCE quantity sign corresponding, and report this CCE quantity sign with the minimum value of described CCE quantity according to the mapping relations of the employed CCE quantity of control channel with the sign that characterizes CCE quantity; In the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large.
6. method as claimed in claim 5 is characterized in that, control channel performance objective value is the maximum Block Error Rate that control channel allowed;
Determine satisfying under the control channel performance requirement desired value situation according to measurement result, the minimum value of the employed CCE quantity of control channel, be specially: according to measurement result, statistics is no more than under the situation of described maximum Block Error Rate the minimum value of the employed CCE quantity of control channel at Block Error Rate.
7. as each described method of claim 1 to 6, it is characterized in that, measure the channel quality of control area, comprising:
Measure the broad-band channel quality of the top n orthogonal frequency division multiplex OFDM symbol of descending sub frame;
Perhaps, measure the top n OFDM symbol of descending sub frame but do not comprise the broad-band channel quality of the Resource Unit RE that physical mixed ARQ indicating channel PHICH takies; Wherein, N is by Physical Control Format Indicator Channel PCFICH indication, and N is 1,2,3 or 4.
8. as each described method of claim 1 to 6, it is characterized in that,, the channel quality of control area is measured, according to system's official hour or described channel quality measurements of periodic report or CCE quantity according to system's official hour or cycle.
9. a terminal is characterized in that, comprising:
Measuring unit is used to measure the channel quality of control area;
Report the unit, be used for, perhaps report the employed control channel of the control channel unit CCE quantity that mapping obtains according to measurement result to network side reporting channel quality measurements.
10. terminal as claimed in claim 9 is characterized in that, the described unit that reports specifically is used for, and directly the channel quality parameter that measures is reported network side; Perhaps, the channel quality parameter that measures is mapped as channel quality indicator CQI, and CQI is reported network side.
11. terminal as claimed in claim 9 is characterized in that, also comprises:
First map unit is used for the mapping relations according to channel quality parameter and the employed CCE quantity of control channel, determines the pairing CCE quantity of the channel quality parameter that measures; In the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large;
The described unit that reports specifically is used for, and the CCE quantity that described first map unit mapping is obtained reports.
12. terminal as claimed in claim 9 is characterized in that, also comprises:
Determining unit is used for determining satisfying under the control channel performance requirement desired value situation minimum value of the employed control channel of control channel unit CCE quantity according to measurement result;
Second map unit is used for according to the mapping relations of the employed CCE quantity of control channel with the sign that characterizes CCE quantity, determines the CCE quantity sign corresponding with the minimum value of described CCE quantity; In the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large;
The described unit that reports specifically is used for, and the minimum value of the CCE quantity that described determining unit is determined reports, and perhaps the CCE quantity sign that described second map unit mapping is obtained reports.
13. terminal as claimed in claim 12 is characterized in that, control channel performance objective value is the maximum Block Error Rate that control channel allowed;
Described determining unit specifically is used for, and according to measurement result, statistics is no more than under the situation of described maximum Block Error Rate the minimum value of the employed CCE quantity of control channel at Block Error Rate.
14. as each described terminal of claim 9 to 13, it is characterized in that described measuring unit specifically is used for, measure the broad-band channel quality of the top n orthogonal frequency division multiplex OFDM symbol of descending sub frame; Perhaps, measure the top n OFDM symbol of descending sub frame but do not comprise the broad-band channel quality of the Resource Unit RE that physical mixed ARQ indicating channel PHICH takies; Wherein, N is by Physical Control Format Indicator Channel PCFICH indication, and N is 1,2,3 or 4.
15. as each described terminal of claim 9 to 13, it is characterized in that described measuring unit is measured according to system's official hour or cycle, the described unit that reports reports according to system's official hour or cycle.
16. a control channel collocation method is characterized in that, may further comprise the steps:
The channel quality measurements information of the control area that receiving terminal reports or CCE quantity information;
According to the channel quality measurements information or the CCE quantity information of the control area that receives, for the control channel of described terminal distributes employed CCE quantity.
17. method as claimed in claim 16 is characterized in that, the control channel that is described terminal according to described channel quality measurements information distributes employed CCE quantity, comprising:
By inquiring about the mapping relations of the shared CCE quantity of control area channel quality information and control channel, determine the CCE quantity corresponding with the channel quality measurements information that receives;
The CCE that distributes this quantity for the control channel of described terminal; Perhaps, this CCE quantity is adjusted, and distributed the CCE of adjusted quantity for the control channel of terminal.
18. method as claimed in claim 17 is characterized in that, in the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large.
19. method as claimed in claim 17 is characterized in that, according to described CCE quantity information, for the control channel of described terminal distributes employed CCE quantity, comprising:
The CCE that distributes described quantity for the control channel of described terminal;
Perhaps, described CCE quantity is adjusted, and distributed the CCE of adjusted quantity for the control channel of described terminal.
20. method as claimed in claim 19 is characterized in that, described CCE quantity information is for characterizing the sign of CCE quantity;
For the control channel of described terminal distributes before the employed CCE quantity, also comprise: according to the sign that characterizes CCE quantity and the mapping relations of CCE quantity, the corresponding CCE quantity of sign of the sign CCE quantity of definite and described terminal to report.
21., it is characterized in that as each described method of claim 17-19, described CCE quantity is adjusted, be specially: described CCE quantity is adjusted according to control channel CCE volume residual.
22., it is characterized in that described channel quality measurements information is CQI or channel quality parameter as each described method of claim 16-20.
23. a base station is characterized in that, comprising:
Receiving element is used for the channel quality measurements information or the CCE quantity information of the control area that receiving terminal reports;
Allocation units are used for channel quality measurements information or CCE quantity information according to the control area that receives, for the control channel of described terminal distributes employed CCE quantity.
24. base station as claimed in claim 23, it is characterized in that, described allocation units specifically are used for, and by inquiring about the mapping relations of the shared CCE quantity of control area channel quality information and control channel, determine the CCE quantity corresponding with the channel quality measurements information that receives; In the described mapping relations, according to channel quality order from high to low, pairing CCE quantity from small to large; And, distribute the CCE of this quantity for the control channel of described terminal; Perhaps, this CCE quantity is adjusted, and distributed the CCE of adjusted quantity for the control channel of terminal.
25. base station as claimed in claim 23 is characterized in that, described allocation units specifically are used for, and distribute the CCE of described quantity for the control channel of described terminal; Perhaps, described CCE quantity is adjusted, and distributed the CCE of adjusted quantity for the control channel of described terminal.
26. as claim 24 or 25 described base stations, it is characterized in that described allocation units specifically are used for, described CCE quantity adjusted according to control channel CCE volume residual.
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| CN201010164475.6A CN102238611B (en) | 2010-04-30 | 2010-04-30 | Control area channel quality report method, control channel collocation method and device thereof |
| PCT/CN2011/073314 WO2011134385A1 (en) | 2010-04-30 | 2011-04-26 | Method for reporting channel quality, method for control channel blind detection and configuration and device therefor |
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| CN201010164475.6A CN102238611B (en) | 2010-04-30 | 2010-04-30 | Control area channel quality report method, control channel collocation method and device thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102546137A (en) * | 2011-12-29 | 2012-07-04 | 华为技术有限公司 | Method and device for detecting wireless link |
| WO2013149523A1 (en) * | 2012-04-06 | 2013-10-10 | 中兴通讯股份有限公司 | Quality prediction method and device for physical downlink control channel of long term evolution system |
| CN103828415A (en) * | 2012-03-14 | 2014-05-28 | 日电（中国）有限公司 | Method and apparatus for data transmission in communication system |
| CN109257766A (en) * | 2017-07-13 | 2019-01-22 | 中国移动通信有限公司研究院 | The report method of region resource, the configuration method of region parameter, terminal and base station |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102546137A (en) * | 2011-12-29 | 2012-07-04 | 华为技术有限公司 | Method and device for detecting wireless link |
| CN102546137B (en) * | 2011-12-29 | 2014-09-17 | 华为技术有限公司 | Method and device for detecting wireless link |
| CN103828415A (en) * | 2012-03-14 | 2014-05-28 | 日电（中国）有限公司 | Method and apparatus for data transmission in communication system |
| WO2013149523A1 (en) * | 2012-04-06 | 2013-10-10 | 中兴通讯股份有限公司 | Quality prediction method and device for physical downlink control channel of long term evolution system |
| CN103369582A (en) * | 2012-04-06 | 2013-10-23 | 中兴通讯股份有限公司 | Quality prediction method and device for physical downlink control channel of long term evolution system |
| CN103369582B (en) * | 2012-04-06 | 2016-08-03 | 中兴通讯股份有限公司 | The Physical Downlink Control Channel qualitative forecasting method of long evolving system and device |
| US9596043B2 (en) | 2012-04-06 | 2017-03-14 | Zte Corporation | Quality prediction method and device for physical downlink control channel of long term evolution system |
| CN109257766A (en) * | 2017-07-13 | 2019-01-22 | 中国移动通信有限公司研究院 | The report method of region resource, the configuration method of region parameter, terminal and base station |
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| CN102238611B (en) | 2016-04-27 |
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