CN102959888B - Method and apparatus for implementing uplink data transmission - Google Patents
Method and apparatus for implementing uplink data transmission Download PDFInfo
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- CN102959888B CN102959888B CN201180001037.0A CN201180001037A CN102959888B CN 102959888 B CN102959888 B CN 102959888B CN 201180001037 A CN201180001037 A CN 201180001037A CN 102959888 B CN102959888 B CN 102959888B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
A method and apparatus for implementing uplink data transmission are provided. The method includes the following steps: receiving a current uplink scheduling request sent by a terminal; when the current uplink schedule is performed according to the preset scheduling policy, judging whether the system bit error rate (BER) is less than the preset minimum BER value; if so, decreasing the number of the resource blocks (RB) which are currently being uplink scheduled and/or reducing the value of modulation and coding scheme (MCS), in order that the system BER is not less than the preset minimum BER value; if not, performing the current uplink schedule according to the preset scheduling policy. According to the embodiments of the present application, the demodulation performance of a communication system can be improved.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of method and apparatus realizing upstream data and send.
Background technology
In LTE (Long Term Evolution, Long Term Evolution) cellular system, the transmitting power that terminal adopts when sending different upstream datas also can be different.Such as, when the upstream data that terminal sends is business datum, base station is according to the demand of current business and current available band resource, by distributing PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) upper a certain number of RB (Resource Block, Resource Block) and be terminal distribution band resource, terminal sends uplink business data according to the band resource of base station assigns again.Usually, transmitting power during terminal execution PUSCH uplink scheduling is higher, generally at more than 10dBm.As terminal feedback ACK (ACKnowledge, positive acknowledgement), NACK (Negative acknowledgement, Negative Acknowledgement), CQI (Channel Quality Indicator, channel quality indicates) or SRI (Scheduling Request Indicator, dispatch request indicate) etc. signaling, and when not having PUSCH band resource to utilize, base station is by distributing PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) go up a certain number of RB and be terminal distribution band resource, terminal is again according to the band resource feedback control signaling distributed.Usually, transmitting power during terminal execution PUCCH uplink scheduling is lower, greatly about below 0dBm.In addition, the transmitting power of terminal when performing SRS (Sounding Reference Signal, Sounding Reference Signal) uplink scheduling is usually low than transmitting power when performing PUSCH uplink scheduling.
Usually, due to the difference of Poewr control method, the difference of transmitting power, or the not equal reason of the interval time of uplink scheduling, terminal often needs transmitting power is undergone mutation at short notice when sending upstream data. signals.Such as, if terminal is at a TTI (Transmission Time Interval, Transmission Time Interval) interior execution PUCCH uplink scheduling, PUSCH scheduling is performed in back to back TTI, as shown in Figure 1, its schematic diagram of undergoing mutation for terminal transmit power, because the transmitting power of terminal when performing PUCCH uplink scheduling is lower, and perform PUSCH uplink scheduling time transmitting power higher, therefore, as shown in Figure 1, the transmitting power of terminal there occurs sudden change in first TTI and second TTI.
For most terminal, owing to being subject to the little restriction of volume, cause the performance of the power control unit of terminal lower.In the process sending upstream data, when requiring the sudden change that the transmitting power of terminal occurs shown in Fig. 1 in agreement official hour, due to the restriction of self, transmitting power often cannot be realized sudden change by the power control unit of terminal in agreement official hour.When transmitting power cannot be realized sudden change by power control unit in agreement official hour, upstream data. signals will distort.
And if upstream data. signals there occurs distortion, when base station receives the upstream data. signals occurring to distort, also just cannot normal this upstream data. signals of demodulation, also can produce demodulation mistake thus, and then, have impact on the demodulation performance of communication system.
In addition, Fig. 1 is only a kind of schematic diagram, and reality is according to the regulation in agreement, just transmitting power is recovered in the time that terminal so can not be grown at 2 TTI, general meeting recovers in a TTI, also can cause the distortion of signal, and this distortion is enough to the decline causing demodulation performance.
Summary of the invention
In order to solve the problems of the technologies described above, embodiments provide a kind of method and apparatus realizing upstream data and send, to improve the demodulation performance of communication system.
The embodiment of the invention discloses following technical scheme:
Realize the method that upstream data sends, comprising:
The current uplink scheduling request that receiving terminal sends;
When performing current uplink scheduling according to preset scheduling strategy, judge whether the error rate of system is less than preset error rate minimum value;
If so, reduce the Resource Block RB quantity of current uplink scheduling and/or reduce modulation coding mode MCS value, making the error rate of system be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
Realize the device that upstream data sends, comprising:
Receiving element, for the uplink scheduling request that receiving terminal sends;
Demodulation performance judging unit, for when performing current uplink scheduling according to preset scheduling strategy, judges whether the error rate of system is less than preset error rate minimum value;
First time-frequency resource distributing unit, for when the judged result of described demodulation performance judging unit is for being, reduce the RB quantity of current uplink scheduling and/or reduce MCS value, the error rate of system is made to be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
As can be seen from the above-described embodiment, when performing current uplink scheduling according to preset scheduling strategy, when the error rate of system is less than preset error rate minimum value, namely, when the demodulation performance of system cannot meet the demands, by reducing the RB quantity of current uplink scheduling or reducing the MCS value of current uplink scheduling, or the mode that both combine adjusts, make the error rate of system be not less than preset error rate minimum value, thus the demodulation performance of whole system can be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram that terminal transmit power is undergone mutation;
Fig. 2 is a kind of flow chart realizing an embodiment of the method that upstream data sends of the application;
Fig. 3 is a kind of flow chart realizing another embodiment of the method that upstream data sends of the application;
Fig. 4 is a kind of flow chart realizing another embodiment of the method that upstream data sends of the application;
Fig. 5 is a kind of flow chart realizing another embodiment of the method that upstream data sends of the application;
Fig. 6 is a kind of structural representation realizing an embodiment of the device that upstream data sends of the application;
Fig. 7 is a structural representation of demodulation performance judging unit in the application's embodiment;
Fig. 8 is the structural representation of demodulation performance judging unit in another embodiment of the application;
Fig. 9 is the structural representation of demodulation performance judging unit in another embodiment of the application;
Figure 10 is the structural representation of demodulation performance judging unit in the application's embodiment;
Figure 11 is the structural representation realizing the device that upstream data sends in another embodiment of the application.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 2, it is a kind of flow chart realizing an embodiment of the method that upstream data sends of the application.The method comprises the following steps:
Step 201: the current uplink scheduling request that receiving terminal sends;
Such as, send before upstream data in terminal, need to send a uplink scheduling request to base station, with obtain base station assigns to terminal, for sending the running time-frequency resource of upstream data.
Step 202: when performing current uplink scheduling according to preset scheduling strategy, when judging whether the error rate of system is less than preset error rate minimum value, if so, enters step 203, otherwise, enter step 204;
It should be noted that, the embodiment of the present application itself is which type of mode is not specifically limited to preset scheduling strategy, any one scheduling strategy of the prior art can be adopted to perform current uplink scheduling, or, any one also can be adopted to perform current uplink scheduling to the scheduling strategy that prior art improves.
Step 203: reduce the Resource Block RB quantity of current uplink scheduling and/or reduce modulation coding mode MCS value, making the error rate of system be not less than preset error rate minimum value, then process ends.
In order to avoid the sudden change of transmitting power is on the impact of upstream data. signals, base station first judges if perform current uplink scheduling according to preset scheduling strategy, whether the error rate of system is less than preset error rate minimum value, if, illustrate if perform current uplink scheduling according to preset scheduling strategy, the requirement of system to demodulation performance cannot be met, therefore, the RB quantity of current uplink scheduling can be reduced or reduce MCS value, improve the error rate of system with this, make the error rate of system be not less than preset error rate minimum value.Or, also can reduce the RB quantity of current uplink scheduling simultaneously and lower MCS value, finally making the error rate of system be not less than preset error rate minimum value.After the error rate of system is brought up to and is not less than preset error rate minimum value, the demodulation performance of system also just improves thereupon, thus the problem that the demodulation performance avoiding distortion and bring declines.
Such as, in a system, when the changed power size (power of the power of current uplink scheduling and the previous scheduling of current uplink scheduling) of adjacent twice uplink scheduling is determined, can by the mode of test, according to the RB quantity of uplink scheduling and the signal to noise ratio of MSC value computing system, and further by the error rate of the signal to noise ratio certainty annuity of system, MSC value is fixed, the RB quantity of the current uplink scheduling of continuous adjustment, when making the error rate of system be not less than preset error rate minimum value, corresponding RB number is the RB quantity met the demands.Equally, also can by the mode of test, according to the RB quantity of uplink scheduling and the signal to noise ratio of MCS value computing system, and further by the error rate of the signal to noise ratio certainty annuity of system, the RB number of uplink scheduling is fixed, the MCS value of the current uplink scheduling of continuous adjustment, when the error rate of system is not less than preset error rate minimum value, corresponding MCS value is the MCS value met the demands.Certainly, by the mode of test, can also adjust RB quantity and the MCS value of current uplink scheduling, when the error rate of system is not less than preset error rate minimum value, corresponding RB number and MCS value are the RB quantity and MCS value that meet the demands simultaneously.
It should be noted that, the concrete numerical value of the embodiment of the present application to preset error rate minimum value does not limit, and can arrange arbitrarily according to user to the specific requirement of the demodulation performance of system.Such as, when user requires higher to the demodulation performance of system, a higher error rate minimum value can be set, when user requires lower to the demodulation performance of system, a lower error rate minimum value can be set.
Step 204: perform current uplink scheduling, process ends according to described preset scheduling strategy.
If perform current uplink scheduling according to preset scheduling strategy, the error rate of system is not less than preset error rate minimum value, illustrate if perform current uplink scheduling according to preset scheduling strategy, the requirement of system to demodulation performance can be met, therefore, directly current uplink scheduling is performed according to preset scheduling strategy.
As can be seen from the above-described embodiment, when performing current uplink scheduling according to preset scheduling strategy, when the error rate of system is less than preset error rate minimum value, namely, when the demodulation performance of system cannot meet the demands, by reducing the RB quantity of current uplink scheduling or reducing the MCS value of current uplink scheduling, or the mode that both combine adjusts, make the error rate of system be not less than preset error rate minimum value, thus the demodulation performance of whole system can be improved.
Embodiment two
The difference of the present embodiment and embodiment one is, the deterministic process whether error rate of system being less than to preset error rate minimum value has carried out further restriction, when the scheduling type by identifying adjacent twice uplink scheduling, and the uplink scheduling identifying adjacent twice execution of terminal be respectively PUCCH scheduling and PUSCH dispatch time, illustrate that the transmitting power of terminal likely needs to produce sudden change at short notice, such as, unexpected rising or decline suddenly, if terminal due to self performance cannot make transmitting power realize sudden change, upstream data. signals can be caused to distort, and then the demodulation performance of influential system.And then need the error rate judging system whether to be less than preset error rate minimum value to know whether upstream data. signals distorts.Refer to Fig. 3, it is a kind of flow chart realizing another embodiment of the method that upstream data sends of the application, comprises the following steps:
Step 301: the uplink scheduling request that receiving terminal sends;
Step 302: the scheduling type identifying the previous scheduling of current uplink scheduling and current uplink scheduling;
Particularly, if current upstream data needs base station to carry out PUSCH scheduling to terminal, then base station inquires about the type of the previous scheduling of current uplink scheduling further, here, base station can after being terminal distribution uplink time/frequency source each time, record and preserve the channel type of uplink scheduling each time and RB (Resource Block, the Resource Block) number each time shared by uplink scheduling.Like this, the channel type of the previous scheduling of current uplink scheduling can be known in base station by the record of inquiry preservation.When by inquiry, base station knows that the previous uplink scheduling of current uplink scheduling is PUCCH scheduling, the transmitting power performed when PUCCH dispatches due to terminal is lower, and the transmitting power performed when PUSCH dispatches is higher, therefore, by above-mentioned judgement, base station just can know that terminal transmitting power when sending upstream data. signals can be undergone mutation at short notice, and this sudden change may make upstream data. signals distort, and then the demodulation performance of influential system.
Step 303: if current uplink scheduling is PUSCH scheduling, and the previous PUCCH of the being scheduling to scheduling of current uplink scheduling is when performing current uplink scheduling according to preset scheduling strategy, judge whether the error rate of system is less than preset error rate minimum value, if, enter step 304, otherwise, enter step 305;
Wherein, can, see the mode of step 202 in embodiment one, base station be made to obtain the type of adjacent twice uplink scheduling.Owing to describing in detail in embodiment one, so place repeats no more.
Step 304: reduce the RB quantity of current uplink scheduling and/or reduce MCS value, making the error rate of system be not less than preset error rate minimum value;
In order to avoid the sudden change of transmitting power is on the impact of upstream data. signals, base station first judges if perform current uplink scheduling according to preset scheduling strategy, whether the error rate of system is less than preset error rate minimum value, if, illustrate if perform current uplink scheduling according to preset scheduling strategy, the requirement of system to demodulation performance cannot be met, therefore, the RB quantity of current uplink scheduling can be reduced or reduce MCS value, improve the error rate of system with this, make the error rate of system be not less than preset error rate minimum value.Also can reduce the RB quantity of current uplink scheduling simultaneously and lower MCS value, finally making the error rate of system be not less than preset error rate minimum value.
Such as, in a system, when the changed power size (power of the power of current uplink scheduling and the previous scheduling of current uplink scheduling) of signal to noise ratio and adjacent twice uplink scheduling is determined, can by the mode of test, the RB quantity of the current uplink scheduling of continuous adjustment, when the error rate of system is not less than preset error rate minimum value, corresponding RB number is the RB quantity met the demands.Equally, also can by the mode of test, the constantly MCS value of the current uplink scheduling of adjustment, when the error rate of system is not less than preset error rate minimum value, corresponding MCS value is the MCS value met the demands.Certainly, by the mode of test, can also adjust RB quantity and the MCS value of current uplink scheduling, when the error rate of system is not less than preset error rate minimum value, corresponding RB number and MCS value are the RB quantity and MCS value that meet the demands simultaneously.
It should be noted that, the concrete numerical value of the embodiment of the present application to error rate minimum value does not limit, and can arrange arbitrarily according to user to the specific requirement of the demodulation performance of system.Such as, when user requires higher to the demodulation performance of system, a higher error rate minimum value can be set, when user requires lower to the demodulation performance of system, a lower error rate minimum value can be set.
Concrete, when the uplink scheduling of adjacent twice is all PUSCH scheduling, calculate the RB number RB of current uplink scheduling demand
prethe RB number RB of terminal is distributed to a front uplink scheduling
lastbetween difference (RB
pre-RB
last) and ratio
the present embodiment according to this difference and ratio, will be divided into four numerical intervals:
Numerical intervals one: when described difference is greater than RB
diff, and when described ratio is greater than or equal to N, the RB quantity of current uplink scheduling is reduced to RB
1number, RB
1=min (RB
last+ RB
diff, RB
last× m), RB
lastfor the RB quantity of the previous scheduling of current scheduling, RB
difffor the maximum difference between the RB quantity of current uplink scheduling and the RB quantity of previous scheduling, N is greater than or equal to 4, min () for getting minimum value function.
Numerical intervals two: when described difference is less than RB
diff, and when described ratio is less than N, the RB quantity of current uplink scheduling is reduced to RB
2number, RB
2=RB
last+ RB
diff, RB
lastfor the RB quantity of the previous scheduling of current scheduling, RB
difffor the maximum difference between the RB quantity of current uplink scheduling and the RB quantity of previous scheduling, N is greater than or equal to 4.
Numerical intervals three: when described difference is less than or equal to RB
diff, and when described ratio is greater than or equal to N, by the RB reduced number of current uplink scheduling to RB
3number, RB
3=RB
last× 2, RB
lastfor the RB quantity of the previous scheduling of current scheduling, RB
difffor the maximum difference between the RB quantity of current uplink scheduling and the RB quantity of previous scheduling, N is greater than or equal to 4.
Numerical intervals four: when described difference is less than or equal to RB
diff, and when described ratio is less than N, perform current uplink scheduling according to preset scheduling strategy, RB
difffor the maximum difference between the RB quantity of current uplink scheduling and the RB quantity of previous scheduling, N is greater than or equal to 4.
It should be noted that, the span of N be greater than or equal to 4 an interval.And for the process of transmitting of upstream data each time, N is the numerical value determined in this interval.
Step 305: perform current uplink scheduling according to described preset scheduling strategy.
It should be noted that, the embodiment of the present application is not specifically limited preset scheduling strategy, and any one scheduling strategy of the prior art can be adopted to perform current uplink scheduling.
As the optional mode of one, in step 302, if identifying current uplink scheduling is PUCCH scheduling or SRS scheduling, then directly performs step 305, namely perform current uplink scheduling according to described preset scheduling strategy.
As can be seen from the above-described embodiment, if be respectively PUCCH scheduling and PUSCH scheduling before and after adjacent twice uplink scheduling, a PUSCH after performing according to preset scheduling strategy, when the error rate of system is less than preset error rate minimum value, namely, when the demodulation performance of system cannot meet the demands, by reducing the RB quantity of a rear PUSCH or reducing the MCS value of rear PUSCH scheduling, or the mode that both combine adjusts, make the error rate of system be not less than preset error rate minimum value, thus the demodulation performance of whole system can be improved.
Embodiment three
The difference of the present embodiment and embodiment one is, the deterministic process whether error rate of system being less than to preset error rate minimum value has carried out further restriction, when the scheduling type by identifying adjacent twice uplink scheduling, and the uplink scheduling identifying adjacent twice execution of terminal be all PUSCH scheduling time, illustrate that the transmitting power of terminal likely needs to produce sudden change at short notice, such as, unexpected rising or decline suddenly, if terminal due to self performance cannot make transmitting power realize sudden change, upstream data. signals can be caused to distort, and then the demodulation performance of influential system.And then need the error rate judging system whether to be less than preset error rate minimum value to know whether upstream data. signals distorts.
Refer to Fig. 4, it is a kind of flow chart realizing another embodiment of the method that upstream data sends of the application, comprises the following steps:
Step 401: the current uplink scheduling request that receiving terminal sends;
Step 402: the scheduling type identifying the previous scheduling of current uplink scheduling and current uplink scheduling;
Step 403: if current uplink scheduling is PUSCH scheduling, and the previous of current uplink scheduling is scheduling to PUSCH scheduling, when performing current uplink scheduling according to preset scheduling strategy, judge whether the error rate of system is less than preset error rate minimum value, if, enter step 404, otherwise, enter step 405;
In addition, except performing the judgement action of step 403 when being all PUSCH scheduling in the previous scheduling identifying current uplink scheduling and current uplink scheduling, can also be PUSCH scheduling identifying current uplink scheduling, the previous of current uplink scheduling be scheduling to the judgement action performing step 403 when SRS dispatches.
Step 404: reduce the RB quantity of current uplink scheduling and/or reduce MCS value, making the error rate of system be not less than preset error rate minimum value, process ends;
In order to avoid the sudden change of transmitting power is on the impact of upstream data. signals, base station first judges if perform current uplink scheduling according to preset scheduling strategy, whether the error rate of system is less than preset error rate minimum value, if, illustrate if perform current uplink scheduling according to preset scheduling strategy, the requirement of system to demodulation performance cannot be met, therefore, the RB quantity of current uplink scheduling can be reduced or reduce MCS value, improve the error rate of system with this, make the error rate of system be not less than preset error rate minimum value.Or, also can reduce the RB quantity of current uplink scheduling simultaneously and lower MCS value, finally making the error rate of system be not less than preset error rate minimum value.After the error rate of system is brought up to and is not less than preset error rate minimum value, the demodulation performance of system also just improves thereupon, thus the problem that the demodulation performance avoiding distortion and bring declines.
Can RB quantity be reduced according to the mode of step 203 in embodiment one or reduce MCS value, repeat no more herein.
It should be noted that, the concrete numerical value of the embodiment of the present application to error rate minimum value does not limit, and can arrange arbitrarily according to user to the specific requirement of the demodulation performance of system.Such as, when user requires higher to the demodulation performance of system, a higher error rate minimum value can be set, when user requires lower to the demodulation performance of system, a lower error rate minimum value can be set.
Step 405: perform current uplink scheduling, process ends according to described preset scheduling strategy.
It should be noted that, the embodiment of the present application is not specifically limited preset scheduling strategy, and any one scheduling strategy of the prior art can be adopted to perform current uplink scheduling.
As the optional mode of one, in step 402, if identifying current uplink scheduling is PUCCH scheduling or SRS scheduling, then directly performs step 405, namely perform current uplink scheduling according to preset scheduling strategy.
As can be seen from the above-described embodiment, if the previous scheduling of current uplink scheduling and current uplink scheduling is all PUSCH scheduling, when performing current uplink scheduling according to preset scheduling strategy, when the error rate of system is less than preset error rate minimum value, namely, when the demodulation performance of system cannot meet the demands, by reducing the RB quantity of current uplink scheduling or reducing the MCS value of current uplink scheduling, or the mode that both combine adjusts, make the error rate of system be not less than preset error rate minimum value, thus the demodulation performance of whole system can be improved.
Embodiment four
The difference of the present embodiment and embodiment one is, the deterministic process whether error rate of system being less than to preset error rate minimum value has carried out further restriction, when the scheduling type by identifying current uplink scheduling, and identify terminal when current uplink scheduling comprises PUSCH scheduling and SRS scheduling simultaneously, that is, current uplink scheduling not only uses PUSCH scheduling type but also use SRS scheduling type, illustrate that the transmitting power of terminal likely needs to produce sudden change at short notice, such as, unexpected rising or decline suddenly, if terminal due to self performance cannot make transmitting power realize sudden change, upstream data. signals can be caused to distort, and then the demodulation performance of influential system.And then need the error rate judging system whether to be less than preset error rate minimum value to know whether upstream data. signals distorts.Refer to Fig. 5, it is a kind of flow chart realizing another embodiment of the method that upstream data sends of the application, comprises the following steps:
Step 501: the uplink scheduling request that receiving terminal sends;
Step 502: the scheduling type identifying current uplink scheduling;
Step 503: if current uplink scheduling comprises PUSCH scheduling and SRS scheduling simultaneously, when performing current uplink scheduling according to preset scheduling strategy, judge whether the error rate of system is less than preset error rate minimum value, if, enter step 504, otherwise, enter step 505;
Wherein, can, see the mode of step 202 in embodiment one, base station be made to obtain the type of adjacent twice uplink scheduling.Owing to describing in detail in embodiment one, so place repeats no more.
Step 504: reduce the RB quantity of PUSCH scheduling in current uplink scheduling and/or reduce MCS value, making the error rate of system be not less than preset error rate minimum value, process ends;
In order to avoid the sudden change of transmitting power is on the impact of upstream data. signals, base station first judges if perform current uplink scheduling according to preset scheduling strategy, whether the error rate of system is less than preset error rate minimum value, if, illustrate if perform current uplink scheduling according to preset scheduling strategy, the requirement of system to demodulation performance cannot be met, therefore, the RB quantity of PUSCH scheduling in current uplink scheduling can be reduced or reduce MCS value, improve the error rate of system with this, make the error rate of system be not less than preset error rate minimum value.Or, also can reduce the RB quantity of current uplink scheduling simultaneously and lower MCS value, finally making the error rate of system be not less than preset error rate minimum value.After the error rate of system is brought up to and is not less than preset error rate minimum value, the demodulation performance of system also just improves thereupon, thus the problem that the demodulation performance avoiding distortion and bring declines.
Can RB quantity be reduced according to the mode of step 203 in embodiment one or reduce MCS value, repeat no more herein.
It should be noted that, the concrete numerical value of the embodiment of the present application to error rate minimum value does not limit, and can arrange arbitrarily according to user to the specific requirement of the demodulation performance of system.Such as, when user requires higher to the demodulation performance of system, a higher error rate minimum value can be set, when user requires lower to the demodulation performance of system, a lower error rate minimum value can be set.
Step 505: perform current uplink scheduling, process ends according to described preset scheduling strategy.
It should be noted that, the embodiment of the present application is not specifically limited preset scheduling strategy, and any one scheduling strategy of the prior art can be adopted to perform current uplink scheduling.
As the optional mode of another kind, in step 502, if identifying current uplink scheduling is PUCCH scheduling or SRS scheduling, then directly performs step 505, namely perform current uplink scheduling according to preset scheduling strategy.
As can be seen from the above-described embodiment, if current uplink scheduling comprises PUSCH scheduling and SRS scheduling simultaneously, when performing current uplink scheduling according to preset scheduling strategy, when the error rate of system is less than preset error rate minimum value, namely, when the demodulation performance of system cannot meet the demands, by reducing the RB quantity of PUSCH scheduling in uplink scheduling or reducing the MCS value of PUSCH scheduling, or the mode that both combine adjusts, make the error rate of system be not less than preset error rate minimum value, thus the demodulation performance of whole system can be improved.
Embodiment five
The embodiment of the present application additionally provide a kind of with in embodiment one realize method that upstream data sends corresponding realize the device that upstream data sends.Refer to Fig. 6, it is a kind of structure chart realizing an embodiment of the device that upstream data sends of the application.This device comprises: receiving element 601, demodulation performance judging unit 602 and the first time-frequency resource distributing unit 603.Operation principle below in conjunction with this device introduces its internal structure and annexation further.
Receiving element 601, for the uplink scheduling request that receiving terminal sends;
Demodulation performance judging unit 602, for when performing current uplink scheduling according to preset scheduling strategy, judges whether the error rate of system is less than preset error rate minimum value;
First time-frequency resource distributing unit 603, for when the judged result of described demodulation performance judging unit is for being, reduce the RB quantity of current uplink scheduling and/or reduce MCS value, the error rate of system is made to be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
Preferably, refer to Fig. 7, it is a structural representation of demodulation performance judging unit in the application's embodiment, and as shown in Figure 7, demodulation performance judging unit 602 comprises: the first recognin unit 6021 and the first judgment sub-unit 6022, wherein,
First recognin unit 6021, for identifying the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
First judgment sub-unit 6022, if be that Physical Uplink Shared Channel PUSCH dispatches for current uplink scheduling, and the previous of current uplink scheduling is scheduling to PUCCH scheduling, judges whether the error rate of system is less than preset error rate minimum value.
Or in the preferred mode of another kind, demodulation performance judging unit 602 comprises: the first recognin unit 6021 and the second judgment sub-unit 6023, refers to Fig. 8, and it is the structural representation of demodulation performance judging unit in another embodiment of the application, wherein,
First recognin unit 6021, for identifying the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
Second judgment sub-unit 6023, if be PUSCH scheduling for current uplink scheduling, and the previous of current uplink scheduling is scheduling to PUSCH scheduling, judges whether the error rate of system is less than preset error rate minimum value.
Or in another preferred mode, demodulation performance judging unit 602 comprises: the first recognin unit 6021 and the 3rd judgment sub-unit 6024, refer to Fig. 9, it is the structural representation of demodulation performance judging unit in another embodiment of the application, wherein,
First recognin unit 6021, for identifying the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
3rd judgment sub-unit 6024, if be PUSCH scheduling for current uplink scheduling, and the previous of current uplink scheduling is scheduling to SRS scheduling, judges whether the error rate of system is less than preset error rate minimum value.
Except the structure shown in Fig. 7-9, refer to Figure 10, it is the structural representation of demodulation performance judging unit in the application's embodiment, and demodulation performance judging unit 602 comprises:
Second recognin unit 6025, for identifying the type of current uplink scheduling;
4th judgment sub-unit 6026, if comprise PUSCH scheduling and SRS scheduling for current uplink scheduling simultaneously, judges whether the error rate of system is less than preset error rate minimum value,
Then the first time-frequency resource distributing unit 603, for when the judged result of described 4th judgment sub-unit is for being, reduce the RB quantity of PUSCH scheduling in current uplink scheduling and/or reduce MCS value, the error rate of system is made to be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
Except the structure shown in Fig. 6, preferred further, refer to Figure 11, it is for realizing the structural representation of the device of upstream data transmission in another embodiment of the application, this device is on Fig. 6 basis, also comprise the second time-frequency resource distributing unit 604, if be PUCCH scheduling or SRS scheduling for current uplink scheduling, perform current uplink scheduling according to described preset scheduling strategy.
This shows, its beneficial effect is: when performing current uplink scheduling according to preset scheduling strategy, when the error rate of system is less than preset error rate minimum value, namely, when the demodulation performance of system cannot meet the demands, by reducing the RB quantity of current uplink scheduling or reducing the MCS value of current uplink scheduling, or the mode that both combine adjusts, make the error rate of system be not less than preset error rate minimum value, thus the demodulation performance of whole system can be improved.
It should be noted that, one of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above a kind of method and apparatus realizing upstream data transmission provided by the present invention is described in detail, apply specific embodiment herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1. realize the method that upstream data sends, it is characterized in that, comprising:
The current uplink scheduling request that receiving terminal sends;
When performing current uplink scheduling according to preset scheduling strategy, judge whether the error rate of system is less than preset error rate minimum value, described preset error rate minimum value is arranged the demodulation performance of system according to user;
If so, reduce the Resource Block RB quantity of current uplink scheduling and/or reduce modulation coding mode MCS value, making the error rate of system be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
2. method according to claim 1, is characterized in that, described when performing current uplink scheduling according to preset scheduling strategy, judges whether the error rate of system is less than preset error rate minimum value and comprises:
Identify the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
Dispatch if current uplink scheduling is Physical Uplink Shared Channel PUSCH, and the previous of current uplink scheduling is scheduling to PUCCH scheduling, judges whether the error rate of system is less than preset error rate minimum value.
3. method according to claim 1, is characterized in that, described when performing current uplink scheduling according to preset scheduling strategy, judges whether the error rate of system is less than preset error rate minimum value and comprises:
Identify the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
If current uplink scheduling is PUSCH scheduling, and the previous of current uplink scheduling is scheduling to PUSCH scheduling, judges whether the error rate of system is less than preset error rate minimum value.
4. method according to claim 1, is characterized in that, described when performing current uplink scheduling according to preset scheduling strategy, judges whether the error rate of system is less than preset error rate minimum value and comprises:
Identify the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
If current uplink scheduling is PUSCH scheduling, and the previous of current uplink scheduling is scheduling to SRS scheduling, judges whether the error rate of system is less than preset error rate minimum value.
5. method according to claim 1, is characterized in that, described when performing current uplink scheduling according to preset scheduling strategy, judges whether the error rate of system is less than preset error rate minimum value and comprises:
Identify the type of current uplink scheduling;
If current uplink scheduling comprises PUSCH scheduling and SRS scheduling simultaneously, judge whether the error rate of system is less than preset error rate minimum value,
Then the current uplink scheduling of described minimizing Resource Block RB quantity and/or reduce modulation coding mode MCS value and be: the RB quantity and/or the MCS value that reduce PUSCH scheduling in current uplink scheduling.
6. the method according to any one in claim 1-5, is characterized in that, described method also comprises:
If current uplink scheduling be PUCCH scheduling or SRS scheduling time, perform current uplink scheduling according to described preset scheduling strategy.
7. realize the device that upstream data sends, it is characterized in that, comprising:
Receiving element, for the uplink scheduling request that receiving terminal sends;
Demodulation performance judging unit, for when performing current uplink scheduling according to preset scheduling strategy, judge whether the error rate of system is less than preset error rate minimum value, described preset error rate minimum value is arranged the demodulation performance of system according to user;
First time-frequency resource distributing unit, for when the judged result of described demodulation performance judging unit is for being, reduce the RB quantity of current uplink scheduling and/or reduce MCS value, the error rate of system is made to be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
8. device according to claim 7, is characterized in that, described demodulation performance judging unit comprises:
First recognin unit, for identifying the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
First judgment sub-unit, if be that Physical Uplink Shared Channel PUSCH dispatches for current uplink scheduling, and the previous of current uplink scheduling is scheduling to PUCCH scheduling, judges whether the error rate of system is less than preset error rate minimum value.
9. device according to claim 7, is characterized in that, described demodulation performance judging unit comprises:
First recognin unit, for identifying the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
Second judgment sub-unit, if be PUSCH scheduling for current uplink scheduling, and the previous of current uplink scheduling is scheduling to PUSCH scheduling, judges whether the error rate of system is less than preset error rate minimum value.
10. device according to claim 7, is characterized in that, described demodulation performance judging unit comprises:
First recognin unit, for identifying the scheduling type of the previous scheduling of current uplink scheduling and current uplink scheduling;
3rd judgment sub-unit, if be PUSCH scheduling for current uplink scheduling, and the previous of current uplink scheduling is scheduling to SRS scheduling, judges whether the error rate of system is less than preset error rate minimum value.
11. devices according to claim 7, is characterized in that, described demodulation performance judging unit comprises:
Second recognin unit, for identifying the type of current uplink scheduling;
4th judgment sub-unit, if comprise PUSCH scheduling and SRS scheduling for current uplink scheduling simultaneously, judges whether the error rate of system is less than preset error rate minimum value,
Then the first time-frequency resource distributing unit, specifically for when the judged result of described 4th judgment sub-unit is for being, reduce the RB quantity of PUSCH scheduling in current uplink scheduling and/or reduce MCS value, the error rate of system is made to be not less than preset error rate minimum value, otherwise, perform current uplink scheduling according to described preset scheduling strategy.
12. devices according to any one in claim 7-11, it is characterized in that, described device also comprises:
Second time-frequency resource distributing unit, if be PUCCH scheduling or SRS scheduling for current uplink scheduling, performs current uplink scheduling according to described preset scheduling strategy.
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| PCT/CN2011/076407 WO2012159298A1 (en) | 2011-06-27 | 2011-06-27 | Method and apparatus for implementing uplink data transmission |
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| WO2017088147A1 (en) * | 2015-11-26 | 2017-06-01 | 华为技术有限公司 | Method and base station for realizing adaptive modulation and coding |
| KR102380345B1 (en) * | 2018-01-19 | 2022-03-29 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Power control method, terminal device and network device |
| US11498446B2 (en) * | 2020-01-06 | 2022-11-15 | Ford Global Technologies, Llc | Plug-in charge current management for battery model-based online learning |
| CN113381844B (en) * | 2020-02-25 | 2023-11-14 | 上海诺基亚贝尔股份有限公司 | Method and device for configuring symbol number of downlink additional demodulation reference signal |
| CN113596902A (en) * | 2021-07-30 | 2021-11-02 | 西安抱朴通信科技有限公司 | Base station side PHR optimization method, storage medium, electronic device and base station |
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