CN103546234B - The determining method, apparatus of MCS and base station - Google Patents
The determining method, apparatus of MCS and base station Download PDFInfo
- Publication number
- CN103546234B CN103546234B CN201210243084.2A CN201210243084A CN103546234B CN 103546234 B CN103546234 B CN 103546234B CN 201210243084 A CN201210243084 A CN 201210243084A CN 103546234 B CN103546234 B CN 103546234B
- Authority
- CN
- China
- Prior art keywords
- code efficiency
- resource
- maximum code
- current
- maximum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The invention discloses the determining method, apparatus of MCS a kind of and base station, wherein, this method includes：The situation of resource is occupied according to current channel quality information and current control information, determines the maximum code efficiency that current transmission allows；Maximum code efficiency according to current transmission permission determines the modulation coding scheme MCS of current transmission according to default mapping relations.Passing through the present invention so that the determining method realization of MCS of the invention is simple, and, the situation of resource is occupied according to channel quality information and control information, it determines the maximum code efficiency that current transmission allows, MCS is obtained by the directly mapping of determining code efficiency, improves the accuracy of determining MCS.
Description
Technical field
The present invention relates to the communications field, in particular to the determining method, apparatus of MCS a kind of and base station.
Background technology
In Orthogonal Frequency Division Multiple Access（Orthogonal Frequency Division Multiple Access, referred to as
OFDMA）Communication system, for example, long term evolution（Long Term Evolution, referred to as LTE）In system, base station side needs
According to base station and the down channel situation of each UE, the modulation coding scheme of downlink is adaptively determined（MCS）, this mode quilt
Referred to as descending self-adapting coding and modulation control（Adaptive Coding＆Modulation, referred to as AMC）, downlink AMC plans
The indexs such as the transmission quality, efficiency of transmission and handling capacity of downlink are slightly influenced, are a kind of necessary and important controlling mechanisms.
Especially for down channel, code efficiency is a most important index, has very big shadow to system performance
It rings, user equipment（User Equipment, referred to as UE）Channel quality instruction (the Channel Quality of feedback
Indication, referred to as CQI）It can reflect code efficiency, various MCS and resource block（Resource Block, referred to as
RB）Several combinations determines theoretical code efficiency, and control information can occupy the resource of data channel so that the reality that data use
Code efficiency rises.Therefore, how accurate control codes efficiency, design descending self-adapting coding and modulation control, and in correlation
There is no expressly provide in agreement.
Fig. 1 is according to the flow chart of the determining method of the MCS of the relevant technologies, as shown in Figure 1, in the related art using logical
CQI is crossed to map to obtain Signal to Interference plus Noise Ratio（Signal to Interference plus Noise Ratio, referred to as
For SINR）, map to obtain a MCS further according to SINR, the situation of resource finally occupied according to control information and Block Error Rate adjusts
MCS.The method of this determining MCS need to be through repeatedly mapping, realizing complicated and cannot accurately determining the MCS that transmission uses, will
Cause Block Error Rate high or cause the availability of frequency spectrum low due to the use of conservative MCS, so as to make throughput relatively low.
The problem of for how accurately to determine MCS in the relevant technologies, currently no effective solution has been proposed.
Invention content
The problem of complicated and accuracy is low is realized for the determining method of MCS in the relevant technologies, and the present invention provides one kind
The determining method, apparatus of MCS and base station, at least to solve the above problems.
According to an aspect of the invention, there is provided the determining method of MCS a kind of, including：Believe according to present channel quality
Breath and current control information occupy the situation of resource, determine the maximum code efficiency that current transmission allows；Work as forward pass according to described in
The maximum code efficiency of defeated permission determines the modulation coding scheme MCS of current transmission according to default mapping relations.
Preferably, the situation for resource being occupied according to current channel quality information and current control information determines that current transmission is permitted
Perhaps maximum code efficiency, including：The maximum code efficiency that present channel allows is obtained, and according to the Block Error Rate tune of current transmission
The maximum code efficiency that the whole present channel allows；According to current control information occupy resource situation determine current number it is believed that
Breath occupies the situation of resource；The maximum code efficiency allowed according to the present channel after adjustment and the data information occupy money
The situation in source determines the maximum code efficiency that current transmission allows.
Preferably, the maximum code efficiency that present channel allows is obtained, including：Receive the channel matter of reported by user equipment UE
Amount instruction CQI；The maximum code efficiency of present channel permission is determined according to default transformational relation according to the CQI.
Preferably, the maximum code efficiency of the present channel permission is adjusted according to the Block Error Rate of current transmission, including：It obtains
Take the Block Error Rate of current transmission；The adjusted value of code efficiency is determined according to the Block Error Rate of current transmission；According to the adjusted value tune
The maximum code efficiency that the whole present channel allows, the maximum code efficiency after being adjusted.
Preferably, the maximum code efficiency of the present channel permission is adjusted according to the adjusted value, including：In the mistake
In the case that block rate is more than preset value, the maximum code efficiency of the present channel permission is reduced using the adjusted value；Institute
Block Error Rate is stated less than in the case of preset value, the maximum code efficiency of the present channel permission is improved using the adjusted value.
Preferably, the situation for resource being occupied according to current control information determines that current data information occupies the situation of resource,
Including：Situation according to current control information occupancy resource determines the resource that current data information occupies；According to current number it is believed that
The resource that breath occupies determines that current data information occupies the ratio of resource.
Preferably, resource is occupied according to the maximum code efficiency of the present channel permission after adjustment and the data information
Situation determine current transmission allow maximum code efficiency, including：The maximum coding allowed according to the present channel after adjustment
Efficiency and the ratio determine the maximum code efficiency that current transmission allows, wherein, the value of the ratio is bigger, described
The code efficiency that current transmission allows is bigger.
Preferably, the maximum code efficiency of current transmission permission is determined according to the following formula：The maximum that current transmission allows
Code efficiency F=（C+D）* P, wherein, C is the maximum code efficiency that present channel allows, and D is the adjusted value, and P is the ratio
Example.
According to another aspect of the present invention, a kind of determining device of MCS is provided, including：First determining module, is used for
The situation of resource is occupied according to current channel quality information and current control information, determines the maximum coding effect that current transmission allows
Rate；Second determining module, for determining to work as according to default mapping relations according to the maximum code efficiency that the current transmission allows
The modulation coding scheme MCS of preceding transmission.
Preferably, first determining module includes：Acquiring unit, for obtaining the maximum coding effect of present channel permission
Rate；Adjustment unit, for adjusting the maximum code efficiency of the present channel permission according to the Block Error Rate of current transmission；First really
Order member, the situation for occupying resource according to current control information determine that current data information occupies the situation of resource；Second
Determination unit, maximum code efficiency and the data information for allowing according to the present channel after adjusting occupy resource
Situation determines the maximum code efficiency that current transmission allows.
Preferably, the acquiring unit obtains the maximum code efficiency of present channel permission in the following way：It receives and uses
The channel quality indicator (CQI) that family equipment UE reports；Determine what present channel allowed according to preset transformational relation according to the CQI
Maximum code efficiency.
Preferably, the adjustment unit adjusts the maximum code efficiency that the present channel allows in the following way：It obtains
Take the Block Error Rate of current transmission；The adjusted value of code efficiency is determined according to the Block Error Rate of current transmission；According to the adjusted value tune
The maximum code efficiency that the whole present channel allows, the maximum code efficiency after being adjusted.
Preferably, first determination unit determines that current data information occupies the situation of resource in the following way：According to
The resource of current data information occupancy is determined according to the situation of current control information occupancy resource；It is occupied according to current data information
Resource determines that current data information occupies the ratio of resource.
Preferably, second determination unit determines the maximum code efficiency that current transmission allows in the following way：According to
The maximum code efficiency and the ratio allowed according to the present channel after adjustment determines the maximum coding effect that current transmission allows
Rate, wherein, the value of the ratio is bigger, and the code efficiency that the current transmission allows is bigger.
Preferably, second determination unit determines the maximum code efficiency of current transmission permission according to the following formula：When
The maximum code efficiency F that preceding transmission allows=（C+D）* P, wherein, C is the maximum code efficiency that present channel allows, and D is described
Adjusted value, P are the ratio.
According to another aspect of the invention, a kind of base station is provided, including：Above device provided by the invention.
By the present invention, the situation of resource is occupied according to current channel quality information and current control information, is determined current
Transmit the maximum code efficiency allowed；According to the maximum code efficiency that current transmission allows according to default mapping relations, determine to work as
The MCS of preceding transmission.In the MCS for determining current transmission, multiple mapping when MCS is determined in the relevant technologies is avoided so that this
The determining method of the MCS of invention is realized simply, also, the situation of resource is occupied according to channel quality information and control information, really
Determine the maximum code efficiency of current transmission permission, MCS is obtained by the directly mapping of determining code efficiency, improves determining MCS's
Accuracy.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart according to the determining method of the MCS of the relevant technologies；
Fig. 2 is the flow chart of the determining method of MCS according to embodiments of the present invention；
Fig. 3 is the flow diagram according to the determining method of the MCS of the preferred embodiment of the present invention one；
Fig. 4 is the flow chart of CQI acquisitions according to the preferred embodiment of the invention and maintaining method；
Fig. 5 is the flow chart of BLER statistic and code check adjusted value maintaining method according to the preferred embodiment of the invention；
Fig. 6 is the flow chart of the determining method of downlink MCS according to the preferred embodiment of the invention；
Fig. 7 is the structure diagram of the determining device of MCS according to embodiments of the present invention；
Fig. 8 is the structure diagram of preferred first determining module according to embodiments of the present invention；
Fig. 9 is the structure diagram of the adjusting apparatus of MCS according to the preferred embodiment of the invention.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be combined with each other.
In wireless telecommunication system, downlink AMC strategies influence the fingers such as the transmission quality, efficiency of transmission and handling capacity of downlink
A kind of controlling mechanism of key of target.Realized for the method that MCS is determined in the relevant technologies it is complicated, and can not accuracy really
Determine MCS, the problem of so as to influence system performance, in order to be accurately determined MCS, an embodiment of the present invention provides a kind of MCS really
Determine scheme, realize relatively easy and can more be accurately determined MCS, to improve downstream spectrum utilization rate, efficiency of transmission and handle up
Rate.
According to embodiments of the present invention, provide the determining method of MCS a kind of, based on code efficiency, realize it is relatively easy and
MCS can be more accurately determined.
Fig. 2 is the flow chart of the determining method of MCS according to embodiments of the present invention, as shown in Fig. 2, this method can include
Step S202 to step S204：
Step S202 occupies the situation of resource according to current channel quality information and current control information, determines to work as forward pass
The maximum code efficiency of defeated permission；
Step S204, the maximum code efficiency according to current transmission permission determine current transmission according to default mapping relations
Modulation coding scheme（MCS）.
Through the embodiment of the present invention, the situation of resource is occupied according to current channel quality information and current control information, really
Determine the maximum code efficiency of current transmission permission；The maximum code efficiency allowed according to current transmission according to default mapping relations,
Determine the MCS of current transmission.In the MCS for determining current transmission, multiple mapping when MCS is determined in the relevant technologies is avoided,
So that the determining method of the MCS of the present invention is realized simply, also, the feelings of resource are occupied according to channel quality information and control information
Condition determines the maximum code efficiency that current transmission allows, and obtains MCS by the directly mapping of determining code efficiency, improves determining
The accuracy of MCS.
In a preferred embodiment of the embodiment of the present invention, according to current channel quality information and current control information
The situation of resource is occupied, the maximum code efficiency that current transmission allows is determined, can include：Obtain the maximum that present channel allows
Code efficiency, and the maximum code efficiency allowed according to the Block Error Rate of the current transmission adjustment present channel；According to current control
The situation that information processed occupies resource determines that current data information occupies the situation of resource；Allow according to the present channel after adjustment
Maximum code efficiency and data information occupy the situation of resource, determine the maximum code efficiency that current transmission allows.
Further, CQI can reflect code efficiency, by preset transformational relation, for example, mapping specified in agreement
Relationship can map CQI to obtain the maximum code efficiency of channel permission, and therefore, one in the embodiment of the present invention is preferred real
It applies in mode, when obtaining the maximum code efficiency that present channel allows, the CQI that UE is reported can be received, and according to CQI according to pre-
If transformational relation, the maximum code efficiency that present channel allows is determined.In practical applications, UE can periodically report CQI,
When determining MCS, the CQI that can be received with real-time update maps to obtain the maximum coding effect of channel permission according to newest CQI
Rate.
It is described current according to the adjustment of the Block Error Rate of current transmission in another preferred embodiment of the embodiment of the present invention
During the maximum code efficiency that channel allows, the Block Error Rate of current transmission can be obtained, determines to compile according to the Block Error Rate of current transmission
The adjusted value of code efficiency, and the maximum code efficiency allowed according to determining adjusted value adjustment present channel, after being adjusted
Maximum code efficiency.Preferably, it is big in Block Error Rate in the maximum code efficiency allowed according to adjusted value adjustment present channel
In the case of preset value, adjusted value can be utilized to improve the maximum code efficiency that present channel allows；It is less than in Block Error Rate pre-
If in the case of value, adjusted value can be utilized to reduce the maximum code efficiency that present channel allows.
In practical applications, the parameter of adjustment can be set according to actual needs, it is preferable that in Block Error Rate and preset value
When the absolute value phase of difference, the amplitude for improving the maximum code efficiency that present channel allows permits less than present channel is reduced
Perhaps the amplitude of maximum code efficiency, for example, the amplitude of raising and the ratio of the amplitude reduced can be set, for LTE system
It could be provided as 1：9 or 2：8 etc..
In addition, the resource that control information will occupy data channel so that the actual coding efficiency that data use rises, because
This, the situation of resource can be occupied according to control information, determines the resource that data information occupies, and occupied according to data information
Resource determines that data information occupies the ratio of resource, and the ratio that resource is occupied according to data information adjusts to obtain current transmission permission
Code efficiency.Therefore, in a preferred embodiment of the embodiment of the present invention, resource is occupied according to current control information
When situation determines that current data information occupies the situation of resource, the situation that resource can be occupied according to current control information determines to work as
The resource that preceding data information occupies, and determine that current data information occupies the ratio of resource according to the resource that current data information occupies
Example.
Further, resource is occupied according to the maximum code efficiency and data information of the present channel permission after adjustment
When situation determines the maximum code efficiency that current transmission allows, the maximum coding that can allow according to the present channel after adjustment is imitated
Rate and determining ratio determine the maximum code efficiency that current transmission allows, wherein, current data information occupies the ratio of resource
The value of example is bigger, and the code efficiency that current transmission allows is bigger.By this preferred embodiment, according to being used for transmission data
The maximum code efficiency that present channel after efficient resource occupation proportion and adjustment allows directly obtains the coding effect finally allowed
Rate so that do not need to selection MCS is attempted whether code check is excessively high.
In a preferred embodiment of the embodiment of the present invention, it can determine what current transmission allowed according to the following formula
Maximum code efficiency：The maximum code efficiency F that current transmission allows=（C+D）* P, wherein, C is the maximum volume that present channel allows
Code efficiency, D are the adjusted value, and P is the ratio.
Preferred embodiment one
In the preferred embodiment, based on the code efficiency that the present channel that the UE CQI reported are represented allows, according to
Information is controlled to occupy the transmission quality index Block Error Rate under the resource ratio and current transmission channel of data channel, determines to work as
The code efficiency that preceding transmission allows, the code efficiency then allowed according to current transmission determine specific downlink MCS.
Fig. 3 is according to the flow diagram of the determining method of the MCS of the preferred embodiment of the present invention one, as shown in figure 3, the party
Method is calculated based on the code efficiency C that the present channel that the UE CQI reported are represented allows according to the Block Error Rate D of current transmission
Go out code check adjusted value, the efficient resource occupation proportion P for being used for transmission data is calculated according to control information occupancy resource situation, from
And determine finally allow code efficiency F=（C+D）* P, then by code check in agreement of the code efficiency that finally allows extremely
The mapping table of MCS obtains downlink MCS.
Specifically, the method for this preferred embodiment, can include following steps（Step 1 is to step 5）：
Step 1, the CQI that report of UE are obtained, obtained according to the conversion table described in agreement and safeguard what present channel allowed
Code efficiency C.Preferably, step 1 can include following steps again：
Step 102, the CQI that UE is reported is obtained；
Step 104, the code efficiency C of present channel permission is mapped out by CQI according to the conversion table described in agreement；
Step 106, the code efficiency C that present channel allows is safeguarded.
Step 2, the Block Error Rate D for obtaining current transmission calculates code check adjusted value.Preferably, step 2 again can include with
Under several steps：
Step 202, the Block Error Rate D of current transmission is obtained；
Step 204, code efficiency adjusted value is directly calculated according to Block Error Rate D.Preferably, Block Error Rate is higher, bears and adjusts
Whole value is smaller, and Block Error Rate is lower, and positive justification value is bigger.Determine that MCS adjusted values are more accurate, direct compared to according to Block Error Rate.
Step 3, resource situation is occupied according to control information, the efficient resource occupation proportion for being used for transmission data is calculated
P.Preferably, step 3 can include following steps again：
Step 302, it obtains control information and occupies resource situation；
Step 304, the efficient resource occupation proportion P for being used for transmission data is calculated.
Step 4, determine finally allow code efficiency F=（C+D）*P.
Step 5, the mapping table of code check to the MCS by the code efficiency that finally allows in agreement obtain downlink MCS.
By this preferred embodiment, compared with prior art, can more accurately control downlink MCS, not only realize it is simple but also
Energy improving performance takes so saving and handling due to realizing simple, improves downstream spectrum utilization rate, efficiency of transmission and handle up
Rate.
Preferred embodiment two
In the preferred embodiment, the determining method of MCS can include three process flows：CQI is obtained and maintenance processing
Flow, BLER statistic and code check adjusted value maintenance process and downlink MCS determine flow, respectively as Fig. 4, Fig. 5 and Fig. 6 show.
Fig. 4 is the flow chart of CQI acquisitions according to the preferred embodiment of the invention and maintaining method, as shown in figure 4, CQI is obtained
It takes and maintenance processing can include step S401 to step S402：
Step S401 obtains the CQI that UE is reported；
Step S402 is mapped out the code efficiency C of present channel permission according to the conversion table described in agreement by CQI, and
The code efficiency that maintenance channel allows.
Fig. 5 is the flow chart of BLER statistic and code check adjusted value maintaining method according to the preferred embodiment of the invention, such as
Shown in Fig. 5, BLER statistic and code check adjusted value maintaining method include step S501 to step S502：
Step S501 obtains the Block Error Rate D of current transmission；
Step S502 calculates code check adjusted value according to Block Error Rate D.
Fig. 6 is the flow chart of the determining method of downlink MCS according to the preferred embodiment of the invention, as shown in fig. 6, this method
It can include step S601 to step S607：
Step S601 starts descending scheduling to UE；
Step S602 obtains control information and occupies resource situation；
Step S603 calculates the efficient resource occupation proportion P for being used for transmission data；
Step S604 obtains the maximal rate that the UE feedbacks of maintenance allow；
Step S605 obtains the code check adjusted value calculated by Block Error Rate of maintenance；
Step S606, determine finally allow code efficiency F=（C+D）*P；
Step S607 obtains downlink by the mapping table of code check to the MCS of the code efficiency that finally allows in agreement
MCS。
According to embodiments of the present invention, a kind of determining device of MCS is additionally provided, to realize the MCS of the embodiment of the present invention
Determining method.
Fig. 7 is the structure diagram of the determining device of MCS according to embodiments of the present invention, as shown in fig. 7, the device mainly wraps
It includes：First determining module 10 and the second determining module 20.Wherein, the first determining module 10, for believing according to present channel quality
Breath and current control information occupy the situation of resource, determine the maximum code efficiency that current transmission allows；Second determining module 20,
It is coupled with the first determining module 10, the maximum code efficiency for allowing according to current transmission is determined according to default mapping relations
The modulation coding scheme MCS of current transmission.
Fig. 8 is the structure diagram of preferred first determining module according to embodiments of the present invention, as shown in figure 8, first is true
Cover half block 10 can include：Acquiring unit 102, for obtaining the maximum code efficiency of present channel permission；With acquiring unit 102
It is coupled, adjustment unit 104, for adjusting the maximum code efficiency of present channel permission according to the Block Error Rate of current transmission；The
One determination unit 106, is coupled with adjustment unit 104, and the situation for occupying resource according to current control information determines currently
Data information occupies the situation of resource；Second determination unit 108 is coupled with the first determination unit 106, after according to adjusting
Present channel allow maximum code efficiency and data information occupy resource situation, determine current transmission allow maximum
Code efficiency.
CQI can reflect code efficiency,, can be with for example, mapping relations specified in agreement by preset transformational relation
CQI is mapped to obtain the maximum code efficiency of channel permission, therefore, in a preferred embodiment of the embodiment of the present invention
, acquiring unit 102 can obtain in the following way present channel permission maximum code efficiency：It receives on user equipment (UE)
The channel quality indicator (CQI) of report；The maximum coding that determining present channel according to preset transformational relation according to the CQI allows is imitated
Rate.
In a preferred embodiment of the embodiment of the present invention, adjustment unit 104 can adjust in the following way works as
The maximum code efficiency that preceding channel allows：Obtain the Block Error Rate of current transmission；Coding effect is determined according to the Block Error Rate of current transmission
The adjusted value of rate；According to the maximum code efficiency that above-mentioned adjusted value adjustment present channel allows, the maximum coding after being adjusted
Efficiency.
In addition, the resource that control information will occupy data channel so that the actual coding efficiency that data use rises, because
This, the situation of resource can be occupied according to control information, determines the resource that data information occupies, and occupied according to data information
Resource determines that data information occupies the ratio of resource, and the ratio that resource is occupied according to data information adjusts to obtain current transmission permission
Code efficiency.Therefore, in a preferred embodiment of the embodiment of the present invention, the first determination unit 106 can according to
Under type determines that current data information occupies the situation of resource：The situation that resource is occupied according to current control information determines current number
It is believed that the resource that breath occupies；The resource occupied according to current data information determines that current data information occupies the ratio of resource.
In a preferred embodiment of the embodiment of the present invention, the second determination unit 108 can in the following way really
Determine the maximum code efficiency of current transmission permission：The maximum code efficiency and determining allowed according to the present channel after adjustment
Ratio determines the maximum code efficiency that current transmission allows, wherein, the value that current data information occupies the ratio of resource is got over
Greatly, the code efficiency that current transmission allows is bigger.
Further, the second determination unit 108 can determine the maximum coding effect that current transmission allows according to the following formula
Rate：The maximum code efficiency F that current transmission allows=（C+D）* P, wherein, C is the maximum code efficiency that present channel allows, and D is
The adjusted value, P are the ratio.
Preferred embodiment
Fig. 9 is the structure diagram of the adjusting apparatus of MCS according to the preferred embodiment of the invention, as shown in figure 9, device master
Including：CQI acquisition modules, Block Error Rate acquisition module, control information occupation proportion computing module, the code check that finally allows determine
Module and code check are to MCS mapping blocks.
In a preferred embodiment of the invention, CQI acquisition modules are equivalent to the acquiring unit 102 of the embodiment of the present invention, error code
Rate acquisition module can realize that the adjustment unit 104 of the embodiment of the present invention obtains the function of Block Error Rate, control information occupation proportion
Computing module is equivalent to the first determination unit 106 of the embodiment of the present invention, and the code check determining module finally allowed is equivalent to this hair
First determining module 10 of bright embodiment, code check to MCS mapping blocks are equivalent to the second determining module 20 of the embodiment of the present invention.
According to embodiments of the present invention, a kind of base station is additionally provided, including：The determining dress of MCS provided in an embodiment of the present invention
It puts.
It can be seen from the above description that the present invention realizes following technique effect：According to current channel quality information
The situation of resource is occupied with current control information, determines the maximum code efficiency that current transmission allows；Allow according to current transmission
Maximum code efficiency according to default mapping relations, determine the MCS of current transmission.In the MCS for determining current transmission, avoid
Multiple mapping during MCS is determined in the relevant technologies so that the determining method of MCS of the invention is realized simply, also, according to channel
Quality information and control information occupy the situation of resource, the maximum code efficiency that current transmission allows are determined, by determining coding
Efficiency directly mapping obtains MCS, improves the accuracy of determining MCS.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed in the storage device by computing device, and in some cases, it can be to be different from shown in sequence herein performs
The step of going out or describing they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.It to be combined in this way, the present invention is not limited to any specific hardware and softwares.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
- A kind of 1. determining method of modulation coding scheme MCS, which is characterized in that including：The situation of resource is occupied according to current channel quality information and current control information, determines the maximum volume that current transmission allows Code efficiency；Maximum code efficiency according to current transmission permission determines the modulating-coding of current transmission according to default mapping relations Mode MCS；Wherein, mapping of the default mapping relations for the maximum code efficiency set in specified protocol to the MCS Table.
- 2. it according to the method described in claim 1, it is characterized in that, is accounted for according to current channel quality information and current control information The maximum code efficiency of current transmission permission is determined with the situation of resource, including：The maximum code efficiency that present channel allows is obtained, and adjust the present channel according to the Block Error Rate of current transmission to allow Maximum code efficiency；The situation that resource is occupied according to current control information determines that current data information occupies the situation of resource；The maximum code efficiency allowed according to the present channel after adjustment and the data information occupy the situation of resource, determine The maximum code efficiency that current transmission allows.
- 3. according to the method described in claim 2, it is characterized in that, obtain present channel allow maximum code efficiency, including：Receive the channel quality indicator (CQI) of reported by user equipment UE；The maximum code efficiency of present channel permission is determined according to default transformational relation according to the CQI.
- 4. according to the method described in claim 2, it is characterized in that, the present channel is adjusted according to the Block Error Rate of current transmission The maximum code efficiency of permission, including：Obtain the Block Error Rate of current transmission；The adjusted value of code efficiency is determined according to the Block Error Rate of current transmission；The maximum code efficiency of the present channel permission is adjusted according to the adjusted value, the maximum coding effect after being adjusted Rate.
- 5. according to the method described in claim 4, it is characterized in that, adjust what the present channel allowed according to the adjusted value Maximum code efficiency, including：In the case where the Block Error Rate is more than preset value, the maximum that reducing the present channel using the adjusted value allows is compiled Code efficiency；In the case where the Block Error Rate is less than preset value, the maximum that improving the present channel using the adjusted value allows is compiled Code efficiency.
- 6. according to the method described in claim 4, it is characterized in that, the situation that resource is occupied according to current control information determines to work as Preceding data information occupies the situation of resource, including：Situation according to current control information occupancy resource determines the resource that current data information occupies；The resource occupied according to current data information determines that current data information occupies the ratio of resource.
- 7. the according to the method described in claim 6, it is characterized in that, maximum coding effect allowed according to the present channel after adjustment The situation that rate and the data information occupy resource determines the maximum code efficiency that current transmission allows, including：The maximum code efficiency and the ratio allowed according to the present channel after adjustment determines the maximum that current transmission allows Code efficiency, wherein, the value of the ratio is bigger, and the code efficiency that the current transmission allows is bigger.
- 8. the method according to the description of claim 7 is characterized in that determine that the maximum of current transmission permission is compiled according to the following formula Code efficiency：Maximum code efficiency F=(C+D) the * P that current transmission allows, wherein, the maximum code efficiency that C allows for present channel, D For the adjusted value, P is the ratio.
- 9. a kind of determining device of modulation coding scheme MCS, which is characterized in that including：First determining module for occupying the situation of resource according to current channel quality information and current control information, determines to work as The maximum code efficiency that preceding transmission allows；Second determining module, for determining to work as according to default mapping relations according to the maximum code efficiency that the current transmission allows The modulation coding scheme MCS of preceding transmission；Wherein, mapping of the default mapping relations for the maximum code efficiency set in specified protocol to the MCS Table.
- 10. device according to claim 9, which is characterized in that first determining module includes：Acquiring unit, for obtaining the maximum code efficiency of present channel permission；Adjustment unit, for adjusting the maximum code efficiency of the present channel permission according to the Block Error Rate of current transmission；First determination unit, the situation for occupying resource according to current control information determine that current data information occupies resource Situation；Second determination unit, maximum code efficiency and the data information for allowing according to the present channel after adjusting account for With the situation of resource, the maximum code efficiency that current transmission allows is determined.
- 11. device according to claim 10, which is characterized in that the acquiring unit obtains current letter in the following way The maximum code efficiency that road allows：Receive the channel quality indicator (CQI) of reported by user equipment UE；The maximum code efficiency of present channel permission is determined according to preset transformational relation according to the CQI.
- 12. device according to claim 10, which is characterized in that the adjustment unit adjusts described work as in the following way The maximum code efficiency that preceding channel allows：Obtain the Block Error Rate of current transmission；The adjusted value of code efficiency is determined according to the Block Error Rate of current transmission；The maximum code efficiency of the present channel permission is adjusted according to the adjusted value, the maximum coding effect after being adjusted Rate.
- 13. device according to claim 12, which is characterized in that first determination unit determines to work as in the following way Preceding data information occupies the situation of resource：Situation according to current control information occupancy resource determines the resource that current data information occupies；The resource occupied according to current data information determines that current data information occupies the ratio of resource.
- 14. device according to claim 13, which is characterized in that second determination unit determines to work as in the following way The maximum code efficiency that preceding transmission allows：The maximum code efficiency and the ratio allowed according to the present channel after adjustment determines the maximum that current transmission allows Code efficiency, wherein, the value of the ratio is bigger, and the code efficiency that the current transmission allows is bigger.
- 15. device according to claim 14, which is characterized in that second determination unit determines to work as according to the following formula The maximum code efficiency that preceding transmission allows：Maximum code efficiency F=(C+D) the * P that current transmission allows, wherein, the maximum code efficiency that C allows for present channel, D For the adjusted value, P is the ratio.
- 16. a kind of base station, which is characterized in that including：Device described in any one of claim 9 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243084.2A CN103546234B (en) | 2012-07-13 | 2012-07-13 | The determining method, apparatus of MCS and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243084.2A CN103546234B (en) | 2012-07-13 | 2012-07-13 | The determining method, apparatus of MCS and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103546234A CN103546234A (en) | 2014-01-29 |
| CN103546234B true CN103546234B (en) | 2018-07-06 |
Family
ID=49969331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210243084.2A Active CN103546234B (en) | 2012-07-13 | 2012-07-13 | The determining method, apparatus of MCS and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103546234B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10448285B2 (en) | 2015-12-22 | 2019-10-15 | Huawei Technologies Co., Ltd. | Mobility handling in ultra dense networks |
| US10517082B2 (en) * | 2016-04-01 | 2019-12-24 | Huawei Technologies Co., Ltd. | Mechanisms for multi-tier distributed co-operative multi-point technology |
| CA3037647A1 (en) * | 2016-09-23 | 2018-03-29 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and apparatus for adjusting code rate of codec |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6167031A (en) * | 1997-08-29 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for selecting a combination of modulation and channel coding schemes in a digital communication system |
| CN101388744A (en) * | 2007-09-11 | 2009-03-18 | 中兴通讯股份有限公司 | Adaptive encoding modulation method |
| CN101674149A (en) * | 2008-09-08 | 2010-03-17 | 中兴通讯股份有限公司 | Adaptive code modulation method |
| CN102404838A (en) * | 2010-09-10 | 2012-04-04 | 普天信息技术研究院有限公司 | Uplink resource allocation method and uplink resource allocation device |
-
2012
- 2012-07-13 CN CN201210243084.2A patent/CN103546234B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6167031A (en) * | 1997-08-29 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for selecting a combination of modulation and channel coding schemes in a digital communication system |
| CN101388744A (en) * | 2007-09-11 | 2009-03-18 | 中兴通讯股份有限公司 | Adaptive encoding modulation method |
| CN101674149A (en) * | 2008-09-08 | 2010-03-17 | 中兴通讯股份有限公司 | Adaptive code modulation method |
| CN102404838A (en) * | 2010-09-10 | 2012-04-04 | 普天信息技术研究院有限公司 | Uplink resource allocation method and uplink resource allocation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103546234A (en) | 2014-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11233598B2 (en) | Radio transmission device and method | |
| US10938508B2 (en) | Method, device and system for determining transmission parameters of data sharing channel | |
| KR101746317B1 (en) | Modulation Processing Method and Device | |
| EP3251280B1 (en) | Apparatus and method for link adaptation for low cost user equipments | |
| CN104737479B (en) | The method and apparatus of downlink control signal is received or sent in communication system | |
| JP5848797B2 (en) | Uplink resource allocation method, terminal device, processor, and base station | |
| CN105164961B (en) | Method and device for modulating and coding suitable for 256 quadrature amplitude modulation | |
| CN105490781B (en) | Method, user equipment and the base station of transmission control information | |
| WO2017050273A1 (en) | Cqi information receiving method, sending method, receiving device and sending device | |
| CN108633066A (en) | Communication means and its network equipment, terminal device | |
| CN104469946B (en) | A kind of physical uplink control channel resource distribution method | |
| CN104380625A (en) | Method for transmitting or receiving uplink signal | |
| CN101635588B (en) | Power control method and device | |
| CN104937875A (en) | Enhancement for lte communication systems | |
| CN102668651A (en) | A method and apparatus for uplink power control in a wireless communication network | |
| CN104144449B (en) | A kind of resource allocation method, system and relevant apparatus | |
| CN107852259A (en) | For receiving downlink channel in a wireless communication system or sending the method and its device of uplink channel | |
| CN110149703A (en) | The sending method and device of ascending control information, storage medium, user equipment | |
| WO2019214745A1 (en) | Modulation and coding and cqi reporting method, device, apparatus, and storage medium | |
| CN101674654A (en) | PDCCH channel encoding rate regulation method and evolution base station | |
| CN103546234B (en) | The determining method, apparatus of MCS and base station | |
| CN109995493A (en) | Determination method, communication equipment and the device of the transfer resource of channel state information | |
| CN104378178B (en) | A kind of transmission method and equipment of confirmation message | |
| CN103548286A (en) | Method and base station for power allocation in wireless system | |
| CN105940709A (en) | Method and apparatus for reporting channel status in cellular radio communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |