CN103580783B - Low-cost machine communication user equipment and channel state information reporting method, base station and channel condition information processing method - Google Patents
Low-cost machine communication user equipment and channel state information reporting method, base station and channel condition information processing method Download PDFInfo
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- CN103580783B CN103580783B CN201210259426.XA CN201210259426A CN103580783B CN 103580783 B CN103580783 B CN 103580783B CN 201210259426 A CN201210259426 A CN 201210259426A CN 103580783 B CN103580783 B CN 103580783B
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- 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
- H04L1/0028—Formatting
- H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
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Abstract
The invention discloses a kind of low-cost machine communication user equipment and channel state information reporting method, base station and channel condition information processing method.The channel state information reporting method of the wherein low-cost machine communication user equipment comprises the following steps：The sub-band channel status information in multiple subbands corresponding to each subband in broad-band channel status information and the bandwidth of operation corresponding to the bandwidth of operation of the arrowband to be communicated for base station with low-cost machine communication user equipment is obtained, bandwidth of operation carries out the used bandwidth that communicates less than base station with common low-cost machine communication user equipment；The broad-band channel status information and the sub-band channel status information are reported to base station.Pass through above disclosure, disclosed technical scheme can be by reporting all sub-band channel status informations to base station, so as to improve the reference value of reported channel condition information, and the demand of the low-cost machine communication user equipment of arrowband is adapted to be operated in.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of low-cost machine communication user equipment and channel
Status information reporting method, base station and channel condition information processing method.
Background technology
3GPP LTE-A Rel-10/11（LTE-Advance, LTE evolution）It is LTE（Long Term Evolution）Rel-8/9 technologies
Enhancing, lte-a system have than LTE（Long Term Evolution, Long Term Evolution）The higher bandwidth requirement of system, branch
Hold up to 1G peak data rate.In order to meet the requirement of high data rate, lte-a system is by carrier convergence（Component
Aggregation, CA）Technology extends the method for system bandwidth as it, and largely uses MIMO（Multiple-Input
Multiple-Output, multi-antenna technology）Enhancing technology and adaptive technique improve data rate and systematic function.
In lte-a system, UE（User Equipment, user equipment）Need to eNB（ENodeB, base station）Feedback one
A little channel condition informations（Channel State Information, CSI, including CQI（Channel Quality
Indicator, channel quality instruction）、PMI（Precoding Matrix Indicator, pre-coding matrix instruction）、PTI
（Precoding Type Indication, precoding type instruction）And RI（Rank Indicator, order instruction）Deng）, base station
According to the up UL received（Uplink）Feedback information determines descending DL（Downlink）Used MCS（Modulation
And Coding Scheme, modulation coding mode, QPSK, 16QAM or 64QAM are such as used, and which kind of code check used）, realize
(AMC, Adaptive Modulation and Coding, are dynamically selected Adaptive Modulation and Coding according to the change of channel condition
Select appropriate modulation coding mode).
In lte-a system, reporting for channel condition information CSI reports including trigger-type and periodically reports two kinds, touches
Hairdo is reported mainly in PUSCH（Physical Uplink Shared Channel, Physical Uplink Shared Channel）Upper feedback, week
Phase property is reported mainly in PUCCH（Physical Uplink Control Channel, Physical Uplink Control Channel）Upper feedback,
Wherein, it is supplement to periodically reporting that trigger-type, which reports,.Periodic channel status information feedback on PUCCH can be divided mainly into week
Phase, broadband reported pattern and cycle frequency to choose report pattern two types, and periodic broadband reports pattern only to feed back broadband CSI information, week
Phase frequency chooses the feedback of report pattern then existing broadband CSI information, the feedback for also having subband CSI information.
Fig. 1 is referred to, Fig. 1 is the time diagram that periodic broadband reports pattern in the prior art, as shown in figure 1, Np is
Report cycle, user equipment (UE) report a broad-band channel status information WB to base station every time Np.
And Fig. 2 and Fig. 3 are referred to, Fig. 2 is that cycle frequency chooses the time diagram of report pattern in the prior art, and Fig. 3 is existing
The cycle frequency for having technology chooses the structural representation of report pattern middle width strip.As shown in Figures 2 and 3, report mould is periodically being chosen frequently
In formula, whole broadband 10 is divided into J BP (Bandwidth part, fractional bandwidth) 101,102,103, each BP101,
102nd, 103 include multiple subbands 104, only select an optimal sub-band (Best SB) to carry out in each BP101,102,103
Report, such as in BP101, the subband 104 that selection is schematically shown as black is reported as optimal sub-band.K expressions report circulation,
In Fig. 2, J=3, K=2, that is, the optimal sub-band for sharing 3 BP reports, and subband reports circulation twice, report repeating query (RC,
Reporting cycle) it is WB-SB1-SB2-SB3-SB1-SB2-SB3-WB-SB1 ....
And in order to reduce the cost of terminal, with suitable for new application scenarios, such as low-cost machine communication user equipment Low
Cost MTC UE (Low Cost Machine Type Communication User Equipment) application scenarios,
In the application scenarios, Low Cost MTC UE bandwidth of operation, maximum transmission power, peak data rate etc. can be reduced, to subtract
Few cost.And Low Cost MTC UE bandwidth of operation is reduced, just it is so that Low Cost MTC UE can only be smaller at one
Arrowband in carry out data transmission, be one of the major programme for reducing Low Cost MTC UE costs, and in order in broadband
Such as this low-cost machine communication user equipments for being operated in arrowband of Low Cost MTC UE are supported in communication system, then are needed
One or more Low-cost machine communication for being operated in arrowband is marked off in the spectral bandwidth of whole wide-band communication system to use
The bandwidth of operation that family equipment is supported（It is arrowband）, connect for being operated in the low-cost machine communication user equipment of arrowband
Enter and data transfer.And for the low-cost machine communication user equipment for being operated in arrowband, reported according to periodic broadband
Pattern, then it can only report the channel condition information corresponding to whole arrowband so that the reference value of the channel condition information reported
It is not high.If cycle frequency chooses report pattern, the division of some bandwidth is carried out to the arrowband, and each section bandwidth is entered respectively
Row division, and multiple subbands are obtained, if channel condition information corresponding to selection optimal sub-band is reported, due to the frequency of arrowband
Spectral limit is smaller, and number of sub-bands is few, thus the reporting schemes of existing UE selection optimal sub-bands are not suitable for being operated in arrowband
Low-cost machine communication user equipment.
The content of the invention
The application is mainly solving the technical problems that provide a kind of low-cost machine communication user equipment and channel status letter
Report method, base station and channel condition information processing method embodiment are ceased, most detailed sub-band channel status information can be sent out
Base station is delivered to, so as to improve the reference value of reported channel condition information, and has adapted to be operated in the low cost of arrowband
The demand of machine communication user equipment.
The application is to solve a technical scheme using of technical problem：A kind of Low-cost machine communication user is provided
The channel state information reporting method of equipment, this method comprise the following steps：Obtain and used for base station and Low-cost machine communication
Multiple subbands in broad-band channel status information and bandwidth of operation corresponding to the bandwidth of operation for the arrowband that family equipment is communicated
In sub-band channel status information corresponding to each subband, bandwidth of operation is less than base station and common low-cost machine communication user equipment
Carry out the used bandwidth that communicates；Broad-band channel status information and sub-band channel status information are reported to base station.
The application is to solve another technical scheme for using of technical problem：A kind of channel status letter of base station is provided
Processing method is ceased, this method comprises the following steps：Received from low-cost machine communication user equipment for base station and inexpensive machine
In broad-band channel status information and bandwidth of operation corresponding to the bandwidth of operation for the arrowband that device communications user equipment is communicated
Sub-band channel status information in multiple subbands corresponding to each subband, bandwidth of operation are less than base station and common Low-cost machine communication
User equipment carries out the used bandwidth that communicates；Line frequency choosing is entered according to broad-band channel status information and sub-band channel status information
Scheduling.
The application is to solve another technical scheme for using of technical problem：A kind of Low-cost machine communication is provided
User equipment, base station are communicated with low-cost machine communication user equipment, and base station is led to low-cost machine communication user equipment
The bandwidth of operation of the arrowband of letter is divided into multiple subbands, and the low-cost machine communication user equipment includes：Channel condition information obtains
Modulus block, for obtaining the son in broad-band channel status information and the multiple subbands corresponding to bandwidth of operation corresponding to each subband
Band channel condition information；Reporting source of channel state information module, for reporting broad-band channel status information and sub-band channel state
Information is to base station.
The application is to solve another technical scheme for using of technical problem：A kind of base station is provided, base station with it is low into
Machine communications user equipment communicates, base station and low-cost machine communication user equipment and the bandwidth of operation of the arrowband to be communicated
Multiple subbands are divided into, the base station includes：Channel condition information receiving module, for being connect from low-cost machine communication user equipment
Receive the sub-band channel state letter corresponding to each subband in broad-band channel status information and the multiple subbands corresponding to bandwidth of operation
Breath；Channel condition information processing module, for entering line frequency choosing according to broad-band channel status information and sub-band channel status information
Scheduling.
The situation of prior art is different from, embodiment of the present invention is by reporting the broad-band channel shape corresponding to bandwidth of operation
State information and by multiple subbands for forming of bandwidth of operation division each corresponding to sub-band channel status information, by reporting
Some sub-band channel status informations so as to improve the reference value of reported channel condition information, and adapt to base station
It is operated in the demand of the low-cost machine communication user equipment of arrowband.
Brief description of the drawings
Fig. 1 is the time diagram that periodic broadband reports pattern in the prior art；
Fig. 2 is that cycle frequency chooses the time diagram of report pattern in the prior art；
Fig. 3 is that the cycle frequency of prior art chooses the structural representation of report pattern middle width strip；
Fig. 4 is the reporting source of channel state information according to the low-cost machine communication user equipment of first embodiment of the invention
The flow chart of method；
Fig. 5 is the structural representation according to the bandwidth of operation of the communication system of first embodiment of the invention；
Fig. 6 is the reporting source of channel state information according to the low-cost machine communication user equipment of first embodiment of the invention
The time diagram of method；
Fig. 7 is on the channel condition information according to the low-cost machine communication user equipment of an alternate embodiment of the invention
The time diagram of reporting method；
Fig. 8 is the channel condition information according to the low-cost machine communication user equipment of the another alternate embodiment of the present invention
The time diagram of report method；
Fig. 9 is the channel condition information according to the low-cost machine communication user equipment of the another alternate embodiment of the present invention
The time diagram of report method；
Figure 10 is believed according to the channel status of the low-cost machine communication user equipment of the another alternate embodiment of the present invention
Cease the time diagram of report method；
Figure 11 is believed according to the channel status of the low-cost machine communication user equipment of the another alternate embodiment of the present invention
Cease the time diagram of report method；
Figure 12 is believed according to the channel status of the low-cost machine communication user equipment of the another alternate embodiment of the present invention
Cease the time diagram of report method；
Figure 13 is the flow chart according to the channel condition information processing method of the base station of second embodiment of the invention；
Figure 14 is the system structure diagram according to the communication system of third embodiment of the invention.
Embodiment
, should the embodiments of the invention provide a kind of channel state information reporting method of low-cost machine communication user equipment
Method comprises the following steps：Obtain the bandwidth of operation of the arrowband to be communicated for base station with low-cost machine communication user equipment
Sub-band channel state letter in corresponding broad-band channel status information and bandwidth of operation in multiple subbands corresponding to each subband
Breath, bandwidth of operation carry out the used bandwidth that communicates less than base station with common low-cost machine communication user equipment；Report broadband
Channel condition information and sub-band channel status information are to base station.
The embodiment of the present invention further provides a kind of channel condition information processing method of base station, and this method includes following
Step：Received from low-cost machine communication user equipment communicated for base station with low-cost machine communication user equipment it is narrow
Son in broad-band channel status information and bandwidth of operation corresponding to the bandwidth of operation of band in multiple subbands corresponding to each subband
Band channel condition information, used in the bandwidth of operation is communicated with common low-cost machine communication user equipment less than base station
Bandwidth；Line frequency selection scheduling is entered according to broad-band channel status information and sub-band channel status information.
The embodiment of the present invention further provides a kind of low-cost machine communication user equipment, and base station leads to inexpensive machine
Credit household's equipment communication, the bandwidth of operation of the arrowband that base station is communicated with low-cost machine communication user equipment are divided into multiple
Subband, the low-cost machine communication user equipment include：Channel condition information acquisition module, for obtaining corresponding to bandwidth of operation
Broad-band channel status information and multiple subbands in sub-band channel status information corresponding to each subband；On channel condition information
Module is reported, for reporting broad-band channel status information and sub-band channel status information to base station.
The embodiment of the present invention further provides a kind of base station, and base station communicates with low-cost machine communication user equipment, base
Low-cost machine communication user equipment of standing is divided into multiple subbands with the bandwidth of operation of the arrowband to be communicated, and the base station includes：
Channel condition information receiving module, for receiving the broad-band channel corresponding to bandwidth of operation from low-cost machine communication user equipment
Sub-band channel status information in status information and multiple subbands corresponding to each subband；Channel condition information processing module, use
In entering line frequency selection scheduling according to broad-band channel status information and sub-band channel status information.
Pass through above-mentioned technical proposal, in the low-cost machine communication user equipment and channel condition information of the embodiment of the present invention
Reporting method, base station and channel condition information processing method by report broad-band channel status information corresponding to bandwidth of operation and
By bandwidth of operation division into multiple subbands each corresponding to sub-band channel status information to base station, reported so as to improve
Channel condition information reference value, and adapted to be operated in the demand of the low-cost machine communication user equipment of arrowband.
Low-cost machine communication user equipment and channel status below in conjunction with specific embodiment to the embodiment of the present invention
Information uploading method, base station and channel condition information processing method are described in detail.
Referring firstly to Fig. 4, Fig. 4 is the letter according to the low-cost machine communication user equipment of first embodiment of the invention
The flow chart of channel state information report method.As shown in figure 4, the channel status of the low-cost machine communication user equipment of the present invention
Information uploading method comprises the following steps：
Step 201：Obtain the bandwidth of operation of the arrowband to be communicated for base station with low-cost machine communication user equipment
Sub-band channel state letter in corresponding broad-band channel status information and bandwidth of operation in multiple subbands corresponding to each subband
Breath.
Step 202：Report broad-band channel status information and sub-band channel status information.
And Fig. 5 is referred to, Fig. 5 is the base station and low-cost machine communication user equipment according to first embodiment of the invention
The structural representation of the bandwidth of operation to be communicated.As shown in figure 5, in the present embodiment, base station（Do not illustrate）With inexpensive machine
Device communications user equipment（Do not illustrate）Communication, bandwidth of operation 30 are directly divided into multiple subband 301-306, Low-cost machine communication
User equipment carries out data access and data transfer using the plurality of subband 301-306 and base station.
And step 201 and step 202 perform in low-cost machine communication user equipment, in step 201, low cost
When machine communication user equipment is needed to base station reporting status information of channel, measuring reference signals, Interpolate estimation etc. can be used existing
There are the broad-band channel status information corresponding to technical limit spacing bandwidth of operation and the sub-band channel status information corresponding to each subband.
In step 202, low-cost machine communication user equipment can for example report broad-band channel state by PUCCH
Information and sub-band channel status information are to base station.
In the present embodiment, the communication system institute assignment bandwidth that low-cost machine communication user equipment is supported is excellent
Elect arrowband as（I.e. it is a kind of low-cost machine communication user equipment for being operated in arrowband）, its bandwidth of operation be less than base station with it is general
Logical low-cost machine communication user equipment carries out the used bandwidth that communicates.And in the present invention, it will support to be operated in arrowband
The bandwidth of operation of low-cost machine communication user equipment is directly divided into multiple subbands.Because the bandwidth of the bandwidth of operation is smaller,
Number of sub-bands is few, therefore in the present embodiment, the channel condition information corresponding to all subbands is right together with bandwidth of operation institute
The broad-band channel status information answered reports in the lump, can send most detailed sub-band channel status information, so as to improve
The reference value of the channel condition information reported, and adapted to be operated in the need of the low-cost machine communication user equipment of arrowband
Ask.
In general, in above-mentioned steps 202, broad-band channel status information and sub-band channel can be reported by default sequence
Status information, and in the alternative of the present invention, broad-band channel status information and subband can be also reported by preset order
Channel condition information, so as to further meet the privacy requirements of information transfer.Fig. 6 to Fig. 8 is will refer to below to by default sequence
And broad-band channel status information and the embodiment of sub-band channel status information is reported to be described in detail by preset order.
Fig. 6 is referred to, Fig. 6 is the channel shape according to the low-cost machine communication user equipment of first embodiment of the invention
The time diagram of state information uploading method.As shown in fig. 6, Np is report cycle, and in step 202, Low-cost machine communication
User equipment sequentially reports broad-band channel status information WB, sub-band channel status information SB1, sub-band channel state every time Np
Information SB2, sub-band channel status information SB3, sub-band channel status information SB4, sub-band channel status information SB5, sub-band channel
Status information SB6：WB-SB1-SB3-SB5-SB2-SB4-SB6 is to base station.
Wherein, sub-band channel status information SB1 is the channel condition information corresponding to subband 301, and sub-band channel state is believed
It is the channel condition information corresponding to subband 301 to cease SB2, and sub-band channel status information SB3 is the channel shape corresponding to subband 301
State information, sub-band channel status information SB4 are the channel condition information corresponding to subband 301, and sub-band channel status information SB5 is
Channel condition information corresponding to subband 301, sub-band channel status information SB6 are the channel condition information corresponding to subband 301.
As shown in fig. 6, in the present embodiment, broad-band channel status information and sub-band channel status information are reported by default sequence,
Base station, without resequencing to it, is suitably adapted for quickly transmitting data and to data safety after above- mentioned information is received
The less demanding application scenarios of property.
Further, since all sub-band channel status information SB1-SB6 have been reported, and the channel between subband has necessarily
Correlation, thus in step 202 it is contemplated that adjustment subband report order, report broad-band channel status information by preset order
And sub-band channel status information is to base station.
Such as Fig. 7 is referred to, Fig. 7 is the low-cost machine communication user equipment according to an alternate embodiment of the invention
The time diagram of channel state information reporting method.As shown in fig. 7, broad-band channel status information, odd number can be reported successively
With the sub-band channel status information corresponding to corresponding sub-band channel status information and even number subband：WB-SB1-SB3-
SB5-SB2-SB4-SB6.
And Fig. 8 is referred to, Fig. 8 is the low-cost machine communication user equipment according to another alternative embodiment of the present invention
Channel state information reporting method schematic diagram.As shown in figure 8, broad-band channel status information, even number subband institute can be reported right successively
The sub-band channel status information corresponding to sub-band channel status information and odd sub-band answered：WB-SB2-SB4-SB6-
SB1-SB3-SB5.
Broad-band channel status information and sub-band channel status information are reported to the step of base station with predefined procedure above-mentioned
In rapid, above-mentioned listed preset order only the preferred embodiment of the present invention, predefined procedure can adjust according to being actually needed, so as to
Reported with a variety of any setting preset orders.
It is worth noting that, the preset order needs to carry out unification with base station, to ensure that base station is getting broad-band channel
After status information and sub-band channel status information, reduction sequence can be carried out to it, be arranged so as to get by default sequence
Broad-band channel status information and sub-band channel status information.
Wherein, in one embodiment of the present invention, preset order can be that base station passes through agreement and Low-cost machine communication
User equipment is made an appointment；In another embodiment of the present invention, can be received from base station physical layer signaling or high-level signaling with
Obtain preset order；In another embodiment of the present invention, can further report and sub-band channel state in step 202
The corresponding subband of information is numbered to base station.
Wherein, the subband corresponding with sub-band channel status information is reported to number into the step of base station, can be all
Subband is reported to number again after sub-band channel state information report, or more can be complete in each sub-band channel state information report
Finish followed by reporting the subband of the sub-band channel status information to number.Following described in the latter reports the mode that subband is numbered such as
Carried out in cycle Np shown in Fig. 6, extra time need not be spent for the former, for the preferred reporting schemes of the present invention.
Further, since low-cost machine communication user equipment support bandwidth of operation bandwidth it is smaller, and adjacent sub-bands it
Between so the channel between subband and broadband have certain correlation, it is thus required during to reduce reporting status information of channel
Bit number, can be by the way of difference reports.Fig. 9 to Figure 12 is will refer to below, and detailed Jie is made to difference reporting schemes
Continue.
Fig. 9 is referred to below, and Fig. 9 is the low-cost machine communication user equipment according to another alternative embodiment of the present invention
Channel state information reporting method schematic diagram.As shown in figure 9, in step 202, broad-band channel status information can be reported respectively
And the difference result of each sub-band channel status information and broad-band channel status information：WB-（SB1-WB）-（SB2-WB）-
（SB3-WB）-（SB4-WB）-（SB5-WB）-（SB6-WB）.
Figure 10 is referred to, Figure 10 is the low-cost machine communication user equipment according to another alternative embodiment of the present invention
Channel state information reporting method schematic diagram.As shown in Figure 10, the step 202 is concretely：Report broad-band channel status information,
Sub-band channel status information corresponding to sub-band channel status information and other subbands corresponding to first subband with this
The difference result of sub-band channel status information corresponding to one subband：WB-SB1-（SB2-SB1）-（SB3-SB1）-
（SB4-SB1）-（SB5-SB1）-（SB6-SB1）.Wherein, in the present embodiment, it have selected and report first subband institute right
The sub-band channel status information answered in actual applications, can report broad-band channel status information, any subband respectively as explanation
Corresponding to sub-band channel status information and any subband corresponding to corresponding sub-band channel status information and other subbands
Sub-band channel status information difference result to base station.
And Figure 11 is referred to, Figure 11 is the low-cost machine communication user equipment according to another alternative embodiment of the present invention
Channel state information reporting method time diagram.As shown in figure 11, the step 202 is concretely：Report broad-band channel
The sub-band channel status information corresponding to sub-band channel status information and even number subband corresponding to status information, odd sub-band
With the difference result of the sub-band channel status information corresponding to adjacent odd subband：WB-SB1-（SB2-SB1）- SB3-
（SB4-SB3）- SB5-（SB6-SB5）.
And Figure 12 is referred to, Figure 12 is the low-cost machine communication user equipment according to another alternative embodiment of the present invention
Channel state information reporting method time diagram.As shown in figure 12, the step 202 is concretely：Report broad-band channel
The sub-band channel status information corresponding to sub-band channel status information and odd sub-band corresponding to status information, even number subband
With the difference result of the sub-band channel status information corresponding to neighbouring even-numbered subband：WB-（SB2-SB1）- SB2-（SB3-
SB2）- SB4-SB5-（SB6-SB5）.
The various difference reporting schemes of disclosed above can effectively reduce bit required during reporting status information of channel
Number, so as to reduce the load capacity of channel.
Below please with further reference to Figure 13, Figure 13 is the channel condition information according to the base station of second embodiment of the invention
The flow chart of processing method, second embodiment of the invention is corresponding with above-mentioned first embodiment, is described in further detail
Base station receives the broad-band channel status information corresponding to bandwidth of operation and the sub-band channel status information corresponding to each subband, with
And after receipt according to those information actions taken.As shown in figure 13, the channel condition information processing of base station of the invention
Method comprises the following steps：
Step 401：Received from low-cost machine communication user equipment for base station and low-cost machine communication user equipment
Each son in multiple subbands in broad-band channel status information and bandwidth of operation corresponding to the bandwidth of operation of the arrowband to be communicated
With corresponding sub-band channel status information.
Step 402：Line frequency selection scheduling is entered according to broad-band channel status information and sub-band channel status information.
Above-mentioned step 401 and step 402 perform in a base station, and in step 401, base station receives bandwidth of operation institute
Sub-band channel status information corresponding to corresponding broad-band channel status information and each subband, for example, base station can pass through
PUCCH receives broad-band channel status information and sub-band channel status information.It is it is worth noting that, relative with first embodiment
Should, in step 401, base station is in the broad-band channel state for receiving low-cost machine communication user equipment and being sent with preset order
After sub-band channel status information corresponding to information and each subband, it can be restored according to the preset order and be arranged with default sequence
Broad-band channel status information and each subband corresponding to sub-band channel status information.
For example, if receiving WB-SB1-SB2-SB3-SB4-SB5-SB6, because broad-band channel state is believed
Sub-band channel status information corresponding to breath and each subband is arranged by default sequence, then need not be handled, can directly utilized
The frame data enter the processing of line frequency selection scheduling.
Arrange, need pair according to other orders different from above-mentioned default sequence if receiving sub-band channel status information
Sub-band channel status information is rearranged, specific as follows：
If receive broad-band channel status information, the sub-band channel status information corresponding to odd sub-band and even number subband
Corresponding sub-band channel status information：WB-SB1-SB3-SB5-SB2-SB4-SB6 or broad-band channel status information,
The sub-band channel status information WB-SB2- corresponding to sub-band channel status information and odd sub-band corresponding to even number subband
SB4-SB6-SB1-SB3-SB5, then need to be resequenced according to preset order, to get WB- in base station side
SB1-SB3-SB5-SB2-SB4-SB6.
Wherein, above-mentioned preset order must make an appointment with low-cost machine communication user equipment, the one of the present invention
In alternate embodiment, preset order is that base station is made an appointment by agreement and low-cost machine communication user equipment；In this hair
In bright another embodiment, the pre-recorded preset order in base station；In another embodiment of the present invention, base station further from
Low-cost machine communication user equipment receives the subband numbering corresponding with sub-band channel status information, and is compiled according to the subband
Number arrangement sub-band channel status information.
Required bit number when if low-cost machine communication user equipment is reduces reporting status information of channel, using difference
The mode reported is divided to be reported.Then need to carry out data convert processing according to difference result, specifically：
If receive broad-band channel status information, the channel condition information corresponding to any subband and other subband institutes
Corresponding sub-band channel status information and the difference result of the channel condition information corresponding to any subband, such as：If receive
To the sub-band channel status information corresponding to broad-band channel status information, first subband and the subband corresponding to other subbands
The difference result of sub-band channel status information corresponding to channel condition information and first subband：WB-SB1-（SB2-
SB1）-（SB3-SB1）-（SB4-SB1）-（SB5-SB1）-（SB6-SB1）, need to be according to broad-band channel status information and difference
Point result obtains each sub-band channel status information respectively, so as to make base station get WB-SB1-SB2-SB3-SB4-
SB5-SB6.
If receive broad-band channel status information, the sub-band channel status information corresponding to odd sub-band and even number subband
The difference result of corresponding sub-band channel status information and the sub-band channel status information corresponding to adjacent odd subband：WB-
SB1-（SB2-SB1）- SB3-（SB4-SB3）- SB5-（SB6-SB5）, need to be according to broad-band channel status information, odd number
Obtain the sub-band channel state letter corresponding to even number subband respectively with corresponding sub-band channel status information and difference result
Breath, so as to make base station get WB-SB1-SB2-SB3-SB4-SB5-SB6.
If receive broad-band channel status information, the sub-band channel status information corresponding to even number subband and odd sub-band
The difference result of corresponding sub-band channel status information and the sub-band channel status information corresponding to neighbouring even-numbered subband：WB-
（SB2-SB1）- SB2-（SB3-SB2）- SB4-SB5-（SB6-SB5）.Need to be according to broad-band channel status information, even number
Obtain the sub-band channel state letter corresponding to odd sub-band respectively with corresponding sub-band channel status information and difference result
Breath, so as to make base station get WB-SB1-SB2-SB3-SB4-SB5-SB6.
In step 402, base station is after broad-band channel status information and sub-band channel status information is received, due to son
Include the channel condition information corresponding to all subbands with channel condition information, base station can be according to the letter corresponding to all subbands
Channel state information and broad-band channel status information calculate optimal sub-band channel, and select the sub-band channel to carry out data access
And data transfer, so as to realize that frequency selection scheduling is handled.
Figure 14 is finally referred to, Figure 14 is illustrated according to the system architecture of the communication system of third embodiment of the invention
Figure.As shown in figure 14, communication system of the invention includes low-cost machine communication user equipment 50 and base station 60, wherein, base
The bandwidth of operation of 60 arrowbands to be communicated with low-cost machine communication user equipment 50 of standing is divided into multiple subbands.
Low-cost machine communication user equipment 50 includes：Channel condition information acquisition module 504, for obtaining bandwidth of operation
Sub-band channel status information corresponding to corresponding broad-band channel status information and each subband；Reporting source of channel state information mould
Block 501, for reporting broad-band channel status information and sub-band channel status information to base station.
Base station 60 includes：Channel condition information receiving module 601, for receiving the broad-band channel shape corresponding to bandwidth of operation
Sub-band channel status information corresponding to state information and each subband；Channel condition information processing module 602, for according to broadband
Channel condition information and sub-band channel status information enter the processing of line frequency selection scheduling.
Wherein, the specific implementation of above-mentioned low-cost machine communication user equipment 50 and each functional module in base station 60
Mode is described in detail in the embodiment shown in Fig. 4 to 12, will not be repeated here.
Therefore, realized by above disclosure, the present invention：By reporting all sub-band channel status informations, from
And the reference value of reported channel condition information is improved, and adapted to be operated in the Low-cost machine communication user of arrowband
The demand of equipment.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can
To realize by another way.For example, device embodiment embodiment described above is only schematical, for example,
The division of the module or unit, only a kind of division of logic function, can there is other dividing mode, example when actually realizing
Such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.
Another, shown or discussed mutual coupling or direct-coupling or communication connection can be by some interfaces, dress
Put or the INDIRECT COUPLING of unit or communication connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the present embodiment embodiment according to the actual needs
The purpose of scheme.
In addition, each functional unit in each embodiment embodiment of the application can be integrated in a processing unit
In or unit be individually physically present, can also two or more units it is integrated in a unit.On
Stating integrated unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the application is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment（Can be personal computer, server, or network equipment etc.）Or processor（processor）It is each to perform the application
The all or part of step of embodiment embodiment methods described.And foregoing storage medium includes：It is USB flash disk, mobile hard disk, read-only
Memory（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (40)
- A kind of 1. channel state information reporting method of low-cost machine communication user equipment, it is characterised in that methods described bag Include following steps：Corresponding to the bandwidth of operation for obtaining the arrowband to be communicated for base station with the low-cost machine communication user equipment Sub-band channel status information in broad-band channel status information and the bandwidth of operation in all subbands corresponding to each subband, The bandwidth of operation is that the spectral bandwidth division of communication system is obtained；The broad-band channel status information and all sub-band channel status informations are reported to the base station.
- 2. according to the method for claim 1, it is characterised in that described to report the broad-band channel status information and own The sub-band channel status information to the base station includes：The broad-band channel status information is reported by preset order and is owned The sub-band channel status information is to the base station.
- 3. according to the method for claim 2, it is characterised in that the preset order be the base station by agreement with it is described Low-cost machine communication user equipment is made an appointment.
- 4. according to the method for claim 2, it is characterised in that also include：Physical layer signaling or height are received from the base station Layer signaling is to obtain the preset order.
- 5. according to the method for claim 2, it is characterised in that described to report the broad-band channel state to believe by preset order Breath and all sub-band channel status informations to the base station further comprise：Report and the sub-band channel status information Corresponding subband is numbered to the base station.
- 6. according to the method for claim 2, it is characterised in that described to report the broad-band channel state to believe by preset order Breath and all sub-band channel status informations to the base station include：The broad-band channel status information, strange is reported successively Number subbands corresponding to sub-band channel status information and the sub-band channel status information corresponding to even number subband, or successively on Report the broad-band channel status information, the sub-band channel status information corresponding to even number subband and the son corresponding to odd sub-band With channel condition information to the base station.
- 7. according to the method for claim 1, it is characterised in that described to report the broad-band channel status information and own The sub-band channel status information to the base station includes：The broad-band channel status information and the subband is reported to believe respectively The difference result of channel state information and the broad-band channel status information is to the base station.
- 8. according to the method for claim 1, it is characterised in that described to report the broad-band channel status information and own The sub-band channel status information to the base station includes：Report the broad-band channel status information, any subband institute right respectively The sub-band channel status information and other sub-band channel status informations answered and the sub-band channel shape corresponding to any subband The difference result of state information is to the base station.
- 9. according to the method for claim 1, it is characterised in that described to report the broad-band channel status information and own The sub-band channel status information to the base station includes：Report sub-band channel status information and the idol corresponding to odd sub-band The difference knot of sub-band channel status information and the sub-band channel status information corresponding to adjacent odd subband corresponding to number subband Fruit is to the base station.
- 10. according to the method for claim 1, it is characterised in that described to report the broad-band channel status information and institute There is the sub-band channel status information to the base station to include：Report sub-band channel status information corresponding to even number subband and The difference of sub-band channel status information and the sub-band channel status information corresponding to neighbouring even-numbered subband corresponding to odd sub-band As a result to the base station.
- 11. the channel condition information processing method of a kind of base station, it is characterised in that the described method comprises the following steps：Received from low-cost machine communication user equipment communicated for base station with low-cost machine communication user equipment it is narrow In broad-band channel status information and the bandwidth of operation corresponding to the bandwidth of operation of band in all subbands corresponding to each subband Sub-band channel status information, the bandwidth of operation led to less than the base station with common low-cost machine communication user equipment Bandwidth used in letter；Line frequency selection scheduling is entered according to the broad-band channel status information and the sub-band channel status information.
- 12. according to the method for claim 11, it is characterised in that described to be connect from the low-cost machine communication user equipment Receiving the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband includes： Further the sub-band channel status information received is arranged by preset order.
- 13. according to the method for claim 12, it is characterised in that the preset order passes through agreement and institute for the base station Low-cost machine communication user equipment is stated to make an appointment.
- 14. according to the method for claim 12, it is characterised in that the pre-recorded preset order.
- 15. according to the method for claim 12, it is characterised in that described to be connect from the low-cost machine communication user equipment Receive the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband Further comprise：The subband corresponding with the sub-band channel status information is received from the low-cost machine communication user equipment Numbering, and the sub-band channel status information is arranged according to subband numbering.
- 16. according to the method for claim 12, it is characterised in that described to be connect from the low-cost machine communication user equipment Receive the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband Including：Successively from corresponding to the low-cost machine communication user equipment reception broad-band channel status information, odd sub-band Sub-band channel status information and even number subband corresponding to sub-band channel status information, or successively from the inexpensive machine Device communications user equipment receives the broad-band channel status information, the sub-band channel status information corresponding to even number subband and strange Sub-band channel status information corresponding to number subband.
- 17. according to the method for claim 10, it is characterised in that described to be connect from the low-cost machine communication user equipment Receive the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband Including：Respectively the broad-band channel status information and each subband are received from the low-cost machine communication user equipment Channel condition information and the difference result of the broad-band channel status information, and according to the broad-band channel status information and institute State difference result and obtain each sub-band channel status information respectively.
- 18. according to the method for claim 10, it is characterised in that described to be connect from the low-cost machine communication user equipment Receive the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband Including：Respectively from corresponding to the low-cost machine communication user equipment reception broad-band channel status information, any subband Channel condition information and other subbands corresponding to sub-band channel status information and any subband corresponding to channel The difference result of status information, and the channel condition information according to corresponding to the difference result and any subband obtains Sub-band channel status information corresponding to other described subbands.
- 19. according to the method for claim 10, it is characterised in that described to be connect from the low-cost machine communication user equipment Receive the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband Including：The sub-band channel status information and even number corresponding to odd sub-band are received from the low-cost machine communication user equipment The difference result of sub-band channel status information and the sub-band channel status information corresponding to adjacent odd subband corresponding to subband, And even number described in the sub-band channel state information acquisition according to corresponding to the difference result and the adjacent odd subband With corresponding sub-band channel status information.
- 20. according to the method for claim 10, it is characterised in that described to be connect from the low-cost machine communication user equipment Receive the broad-band channel status information corresponding to the bandwidth of operation and the sub-band channel status information corresponding to each subband Including：The sub-band channel status information and odd number corresponding to even number subband are received from the low-cost machine communication user equipment The difference result of sub-band channel status information and the sub-band channel status information corresponding to neighbouring even-numbered subband corresponding to subband, And odd sub-band institute described in the sub-band channel state information acquisition according to corresponding to the difference result and the even number subband Corresponding sub-band channel status information.
- 21. a kind of low-cost machine communication user equipment, base station communicates with the low-cost machine communication user equipment, its feature It is, the bandwidth of operation for the arrowband that the base station is communicated with the low-cost machine communication user equipment is divided into more height Band, the bandwidth of operation are that the spectral bandwidth division of communication system is obtained, and the low-cost machine communication user equipment includes：Channel condition information acquisition module, for obtaining the broad-band channel status information corresponding to the bandwidth of operation and owning Sub-band channel status information in the subband corresponding to each subband；Reporting source of channel state information module, for reporting the broad-band channel status information and all sub-band channel states Information is to the base station.
- 22. low-cost machine communication user equipment according to claim 21, it is characterised in that the channel condition information Reporting module is used to report the broad-band channel status information and all sub-band channel status informations extremely by preset order The base station.
- 23. low-cost machine communication user equipment according to claim 22, it is characterised in that the preset order is institute Base station is stated to make an appointment by agreement and the low-cost machine communication user equipment.
- 24. low-cost machine communication user equipment according to claim 22, it is characterised in that channel condition information obtains Module is further used for receiving physical layer signaling or high-level signaling from the base station to obtain the preset order.
- 25. low-cost machine communication user equipment according to claim 22, it is characterised in that the channel condition information Reporting module further reports the subband corresponding with the sub-band channel status information to number to the base station.
- 26. low-cost machine communication user equipment according to claim 22, it is characterised in that the channel condition information Reporting module be used to reporting successively the broad-band channel status information, the sub-band channel status information corresponding to odd sub-band and Sub-band channel status information corresponding to even number subband to the base station, or report successively the broad-band channel status information, The sub-band channel status information corresponding to sub-band channel status information and odd sub-band corresponding to even number subband is to the base Stand.
- 27. low-cost machine communication user equipment according to claim 21, it is characterised in that the channel condition information Reporting module is used to report the broad-band channel status information and each sub-band channel status information and the width respectively Difference result with channel condition information is to the base station.
- 28. low-cost machine communication user equipment according to claim 21, it is characterised in that the channel condition information Reporting module be used to reporting respectively the broad-band channel status information, the sub-band channel status information corresponding to any subband and The difference of sub-band channel status information and the sub-band channel status information corresponding to any subband corresponding to other subbands As a result to the base station.
- 29. low-cost machine communication user equipment according to claim 21, it is characterised in that the channel condition information Reporting module is used to report the sub-band channel status information corresponding to odd sub-band and the sub-band channel corresponding to even number subband The difference result of sub-band channel status information corresponding to status information and adjacent odd subband is to the base station.
- 30. low-cost machine communication user equipment according to claim 21, it is characterised in that the channel condition information Reporting module is used to report the sub-band channel corresponding to sub-band channel status information and the odd sub-band corresponding to even number subband The difference result of sub-band channel status information corresponding to status information and neighbouring even-numbered subband is to the base station.
- 31. a kind of base station, the base station communicates with low-cost machine communication user equipment, it is characterised in that the base station and institute State low-cost machine communication user equipment and be divided into multiple subbands, the base station bag with the bandwidth of operation of the arrowband to be communicated Include：Channel condition information receiving module, it is right for receiving the bandwidth of operation institute from the low-cost machine communication user equipment Sub-band channel status information in the broad-band channel status information answered and all subbands corresponding to each subband；Channel condition information processing module, for according to the broad-band channel status information and the sub-band channel status information Enter line frequency selection scheduling.
- 32. base station according to claim 31, described in channel condition information receiving module is further used for receiving Sub-band channel status information is arranged by preset order.
- 33. base station according to claim 32, it is characterised in that the preset order passes through agreement and institute for the base station Low-cost machine communication user equipment is stated to make an appointment.
- 34. base station according to claim 32, it is characterised in that channel condition information receiving module is further used in advance Record the preset order.
- 35. base station according to claim 32, it is characterised in that the channel condition information receiving module is further used for The subband corresponding with the sub-band channel status information is received from the low-cost machine communication user equipment to number, and according to The subband numbering arranges the sub-band channel status information.
- 36. base station according to claim 32, it is characterised in that the channel condition information receiving module be used for successively from The low-cost machine communication user equipment receives the broad-band channel status information, the sub-band channel shape corresponding to odd sub-band Sub-band channel status information corresponding to state information and even number subband, or set successively from the Low-cost machine communication user For corresponding to the sub-band channel status information corresponding to the reception broad-band channel status information, even number subband and odd sub-band Sub-band channel status information.
- 37. base station according to claim 31, it is characterised in that the channel condition information receiving module be used for respectively from The low-cost machine communication user equipment receives the broad-band channel status information and each sub-band channel state letter Breath and the difference result of the broad-band channel status information, and according to the broad-band channel status information and the difference result Each sub-band channel status information is obtained respectively.
- 38. base station according to claim 31, it is characterised in that the channel condition information receiving module be used for respectively from The low-cost machine communication user equipment receives the broad-band channel status information, the channel status letter corresponding to any subband Sub-band channel status information and the difference of the channel condition information corresponding to any subband corresponding to breath and other subbands Divide result, and other subbands described in the channel condition information acquisition according to corresponding to the difference result and any subband Corresponding sub-band channel status information.
- 39. base station according to claim 31, it is characterised in that the channel condition information receiving module is used for from described Low-cost machine communication user equipment is received corresponding to sub-band channel status information and even number subband corresponding to odd sub-band Sub-band channel status information and adjacent odd subband corresponding to sub-band channel status information difference result, and according to described Corresponding to even number subband described in sub-band channel state information acquisition corresponding to difference result and the adjacent odd subband Sub-band channel status information.
- 40. base station according to claim 31, it is characterised in that the channel condition information receiving module is used for from described Low-cost machine communication user equipment is received corresponding to sub-band channel status information and odd sub-band corresponding to even number subband Sub-band channel status information and neighbouring even-numbered subband corresponding to sub-band channel status information difference result, and according to described Subband described in sub-band channel state information acquisition corresponding to difference result and the even number subband corresponding to odd sub-band Channel condition information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259426.XA CN103580783B (en) | 2012-07-20 | 2012-07-20 | Low-cost machine communication user equipment and channel state information reporting method, base station and channel condition information processing method |
| PCT/CN2013/079829 WO2014012524A1 (en) | 2012-07-20 | 2013-07-22 | Low cost machine type communication user equipment, reporting method of channel state information, base station and processing method of channel state information |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259426.XA CN103580783B (en) | 2012-07-20 | 2012-07-20 | Low-cost machine communication user equipment and channel state information reporting method, base station and channel condition information processing method |
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| CN103580783A CN103580783A (en) | 2014-02-12 |
| CN103580783B true CN103580783B (en) | 2017-11-24 |
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| WO2016117643A1 (en) * | 2015-01-23 | 2016-07-28 | 株式会社Ｎｔｔドコモ | User terminal, wireless base station, and wireless communication method |
| WO2016183768A1 (en) | 2015-05-18 | 2016-11-24 | Mediatek Singapore Pte. Ltd. | Method and apparatus of enhanced paging |
| CN109803361B (en) * | 2017-11-16 | 2021-06-04 | 华为技术有限公司 | Method and equipment for sending uplink channel |
| MX2019010274A (en) * | 2017-11-16 | 2019-10-15 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Method and device for receiving information, and computer-readable medium. |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808370A (en) * | 2009-02-18 | 2010-08-18 | 华为技术有限公司 | Method and device for reporting status information of channel |
| CN102013956A (en) * | 2010-11-25 | 2011-04-13 | 中兴通讯股份有限公司 | Method and device for feeding back channel state information |
| CN102291199A (en) * | 2010-06-18 | 2011-12-21 | 电信科学技术研究院 | Method and device for reporting channel state information |
| CN102332962A (en) * | 2010-07-08 | 2012-01-25 | 华为技术有限公司 | Channel state information reporting and acquiring method, base station and user equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8964656B2 (en) * | 2009-04-02 | 2015-02-24 | Lg Electronics Inc. | Method of transmitting channel state information in wireless communication system |
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- 2012-07-20 CN CN201210259426.XA patent/CN103580783B/en not_active Expired - Fee Related
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101808370A (en) * | 2009-02-18 | 2010-08-18 | 华为技术有限公司 | Method and device for reporting status information of channel |
| CN102291199A (en) * | 2010-06-18 | 2011-12-21 | 电信科学技术研究院 | Method and device for reporting channel state information |
| CN102332962A (en) * | 2010-07-08 | 2012-01-25 | 华为技术有限公司 | Channel state information reporting and acquiring method, base station and user equipment |
| CN102013956A (en) * | 2010-11-25 | 2011-04-13 | 中兴通讯股份有限公司 | Method and device for feeding back channel state information |
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