CN102869109B - Method and device for PUSCH (Physical Uplink Shared Channel) scheduling of terminal - Google Patents
Method and device for PUSCH (Physical Uplink Shared Channel) scheduling of terminal Download PDFInfo
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- CN102869109B CN102869109B CN201210350478.8A CN201210350478A CN102869109B CN 102869109 B CN102869109 B CN 102869109B CN 201210350478 A CN201210350478 A CN 201210350478A CN 102869109 B CN102869109 B CN 102869109B
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Abstract
The embodiment of the invention provides a method and a device for PUSCH (Physical Uplink Shared Channel) scheduling of a terminal, relating to a network communication technology. The method comprises the steps of: according to the RIP (Routing Information Protocol) of an upstream subframe of the PUSCH of the terminal and the RIP of an upstream subframe of an SRS (Sounding Reference Signal), correcting a CQI (Channel Quality Indicator) of an upstream subframe of the SRS to obtain the CQI of the upstream subframe of the PUSCH, determining the grade of the initial MCS (Modulation and Coding Scheme) of the upstream subframe of the PUSCH according to the CQI of the upstream subframe of the PUSCH, and carrying out next scheduling on the terminal according to the grade of the MCS of the upstream subframe of the PUSCH. According to the technical scheme, by means of taking the influence of different interference levels of different upstream subframes to the grade of the MCS of the scheduled PUSCH into consideration and jointly determining the grade of the initial MCS according to the CQI of the upstream subframe of the SRS and the actual condition of the upstream subframe of the PUSCH, the signal transmission ratio is improved, and the error rate is reduced.
Description
Technical field
The present invention relates to the network communications technology, particularly relate to a kind of PUSCH dispatching method and device of terminal.
Background technology
At timesharing Long Term Evolution (the Time Division Long Term Evolution of mobile communication, TDD LTE) in system, the form of expression of interference is divided into a variety of, has all the period of time full frequency band interference, also there is all the period of time band segment interference, also have modal interference at crossed slot.Such as, when networking, some base station signal transmission environment has the water surface, Signal transmissions can be made far, interfere with the Signal reception of the sub-frame of uplink of other base station; Some base station GPS poor direction is true, and the downstream signal of transmission can interfere with the Signal reception of the sub-frame of uplink of other base station; Also identical networking between some base station, but when ascending-descending subframes is equipped with inconsistent, also can produce the interference of descending sub frame to sub-frame of uplink.
In the presence of interference, realize better Signal transmissions, base station can be realized with the mode of coding strategy (Modulation and Coding Scheme, MCS) grade by adjustment modulation.A solution is:
Sounding Reference Signal (the Sounding Reference Signal that base station is sent by sense terminals, SRS), obtain CQI (the Channel quality indicator of terminal, CQI), terminal uplink physical channel (Uplink Physical Channel is determined according to the grade of CQI, PUSCH) initial MCS grade; Base station also can according to the signal interpretation result adjustment MCS grade of PUSCH in addition, and decoding is correct, then heighten the MCS grade of next time dispatching, decoding error reduces the MCS grade of next time dispatching; The mode of this self-adaptative adjustment MCS grade is defined as adaptive modulation and coding (Adaptive Modulation and Coding, AMC).
SRS resource is relatively less, and not multiplexing between user, and when intra-cell users number is many, the SRS resource of user can only be configured in one of them sub-frame of uplink, replaces the CQI of all sub-frame of uplink with the CQI that this sub-frame of uplink is measured.
This technical scheme has following deficiency:
(1) when the sub-frame of uplink being configured with SRS is interfered, and the sub-frame of uplink at PUSCH place is not when receiving interference, the CQI value obtained measured by SRS can lower than the actual cqi value of PUSCH place sub-frame of uplink, the initial MCS grade that PUSCH can be made to dispatch is too low, causes signal transmission rate on the low side.
(2) when the sub-frame of uplink of SRS configuration does not receive interference, and PUSCH place sub-frame of uplink is when being interfered, the CQI value obtained measured by SRS can higher than the actual CQI of PUSCH place sub-frame of uplink, the initial MCS grade that PUSCH will be made to dispatch is too high, cause Block Error Rate (BLock Error Rate, BLER) too high.
(3) when PUSCH transmits at multiple sub-frame of uplink, and when disturbing inconsistent situation, disturb large sub-frame of uplink that overall MCS grade can be made all to decline, thus the MCS that the transmission of the sub-frame of uplink making interference little uses is too low, makes the transmission rate of signal too low.
In sum, at present the determination mode of the MCS grade of the PUSCH of terminal can not be judged exactly for the sub-frame of uplink not configuring SRS, thus affect the speed of Signal transmissions, and the error rate is higher.
Summary of the invention
The embodiment of the present invention provides a kind of PUSCH dispatching method and device of terminal, to improve the speed of Signal transmissions, and reduces the error rate.
A PUSCH dispatching method for terminal, comprising:
The reception interference power values (Received Interference Power, RIP) of the sub-frame of uplink at the uplink physical channel PUSCH place of measuring terminals;
According to the RIP of RIP and the SRS place sub-frame of uplink of the sub-frame of uplink at described PUSCH place, the CQI of the sub-frame of uplink at SRS signal place is revised, obtain the CQI of the sub-frame of uplink at described PUSCH place;
The initial MCS grade of the sub-frame of uplink at described PUSCH place is determined according to the CQI of the sub-frame of uplink at described PUSCH place;
MCS grade according to the sub-frame of uplink at described PUSCH place is dispatched described terminal next time.
A PUSCH dispatching device for terminal, comprising:
Measuring unit, for the RIP of the sub-frame of uplink at the PUSCH place of measuring terminals;
Amending unit, for the RIP of RIP and the SRS place sub-frame of uplink of the sub-frame of uplink according to described PUSCH place, revises the CQI of the sub-frame of uplink at SRS signal place, obtains the CQI of the sub-frame of uplink at described PUSCH place;
Determining unit, the CQI for the sub-frame of uplink according to described PUSCH place determines the initial MCS grade of the sub-frame of uplink at described PUSCH place;
Scheduling unit, the MCS grade for the sub-frame of uplink according to described PUSCH place is dispatched described terminal next time.
The embodiment of the present invention provides a kind of PUSCH dispatching method and device of terminal, according to the RIP of RIP and the SRS place sub-frame of uplink of the sub-frame of uplink at the PUSCH place of terminal, the CQI of the sub-frame of uplink at SRS signal place is revised, obtain the CQI of the sub-frame of uplink at PUSCH place, determine the initial MCS grade of the sub-frame of uplink at PUSCH place again according to the CQI of the sub-frame of uplink at PUSCH place, and according to the MCS grade of the sub-frame of uplink at PUSCH place, terminal is dispatched next time.This technical scheme considers the impact of different sub-frame of uplink disturbance level on the MCS grade of scheduling PUSCH, initial MCS grade is jointly determined by the actual conditions of the sub-frame of uplink at CQI and the PUSCH place of the sub-frame of uplink according to SRS signal place, improve the speed of Signal transmissions, and reduce the error rate.
Accompanying drawing explanation
One of PUSCH dispatching method flow chart of the terminal that Fig. 1 provides for the embodiment of the present invention;
The method of measurement flow chart of the RIP of the sub-frame of uplink at the PUSCH place of the terminal that Fig. 2 provides for the embodiment of the present invention;
The method flow diagram that the CQI of the sub-frame of uplink to SRS signal place that Fig. 3 provides for the embodiment of the present invention revises;
The method flow diagram that terminal is dispatched next time that Fig. 4 provides for the embodiment of the present invention;
The PUSCH dispatching method flow chart two of the terminal that Fig. 5 provides for the embodiment of the present invention;
The PUSCH dispatching device structural representation of the terminal that Fig. 6 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of PUSCH dispatching method and device of terminal, according to the RIP of RIP and the SRS place sub-frame of uplink of the sub-frame of uplink at the PUSCH place of terminal, the CQI of the sub-frame of uplink at SRS signal place is revised, obtain the CQI of the sub-frame of uplink at PUSCH place, determine the initial MCS grade of the sub-frame of uplink at PUSCH place again according to the CQI of the sub-frame of uplink at PUSCH place, and according to the MCS grade of the sub-frame of uplink at PUSCH place, terminal is dispatched next time.This technical scheme considers the impact of different sub-frame of uplink disturbance level on the MCS grade of scheduling PUSCH, initial MCS grade is jointly determined by the actual conditions of the sub-frame of uplink at CQI and the PUSCH place of the sub-frame of uplink according to SRS signal place, improve the speed of Signal transmissions, and reduce the error rate.
As shown in Figure 1, the embodiment of the present invention provides a kind of PUSCH dispatching method of terminal, comprising:
The RIP of the sub-frame of uplink at the uplink physical channel PUSCH place of S101, measuring terminals;
S102, RIP according to RIP and the SRS place sub-frame of uplink of the sub-frame of uplink at PUSCH place, revise the CQI of the sub-frame of uplink at SRS signal place, obtain the CQI of the sub-frame of uplink at PUSCH place;
S103, determine the initial MCS grade of the sub-frame of uplink at PUSCH place according to the CQI of the sub-frame of uplink at PUSCH place;
S104, according to the MCS grade of the sub-frame of uplink at PUSCH place, terminal to be dispatched next time.
Visible, in the PUSCH dispatching method of the terminal that the embodiment of the present invention provides, by the RIP of the sub-frame of uplink at the uplink physical channel PUSCH place of measuring terminals, carry out the correction of CQI, more initial MCS grade is determined again according to revised CQI, thus improve the speed of Signal transmissions, and reduce the error rate.
Preferably, the embodiment of the present invention also provides a kind of method of RIP of sub-frame of uplink of PUSCH place of measuring terminals, as shown in Figure 2, and the RIP of the sub-frame of uplink at the PUSCH place of measuring terminals in S101,
Specifically comprise:
Physical Resource Block (Physics Resource Block, the PRB) power of the sub-frame of uplink at the PUSCH place of S1011, computing terminal;
S1012, when the sub-frame of uplink at PUSCH place does not exist traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink;
S1013, when the sub-frame of uplink at PUSCH place exists traffic scheduling, deduct the power of business that the thermal noise power of this sub-frame of uplink and this sub-frame of uplink be scheduled with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink.
When sub-frame of uplink does not exist traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of sub-frame of uplink, the RIP of this sub-frame of uplink can be obtained; When sub-frame of uplink exists traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of sub-frame of uplink, then deduct the power of business that this sub-frame of uplink is scheduled, the RIP of this sub-frame of uplink can be obtained; Especially, in TDD LTE system, sub-frame of uplink can only carry SRS, can not bearer service, then there is not traffic scheduling according to sub-frame of uplink to measure, namely deduct the thermal noise power of this sub-frame of uplink with the PRB power of sub-frame of uplink, the RIP of this sub-frame of uplink can be obtained.
Certainly, except the RIP method of measurement that the embodiment of the present invention provides, those skilled in the art also can adopt the RIP of the sub-frame of uplink at the PUSCH place of other mode measuring terminals, describes no longer one by one at this.
For obtaining CQI value more accurately further, the embodiment of the present invention also provides one preferably CQI correcting mode, concrete, as shown in Figure 3, according to the RIP of the RIP of the sub-frame of uplink at PUSCH place and Sounding Reference Signal SRS place sub-frame of uplink in S102, the CQI of the sub-frame of uplink at SRS signal place is revised, specifically comprises:
S1021, determine the CQI correction value of the sub-frame of uplink at PUSCH place according to the RIP of the sub-frame of uplink at PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink;
S1022, to revise according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place.
Concrete, according to the difference of the account form of correction value, according to the mode also corresponding difference that the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place revises.
Such as: if determine the channel quality indicator CQI correction value of the sub-frame of uplink at PUSCH place according to the RIP of the sub-frame of uplink at PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, be specially: the RIP RIP of SRS place sub-frame of uplink being deducted the sub-frame of uplink at PUSCH place, obtain the CQI correction value of the sub-frame of uplink at PUSCH place; Then revise according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place, be specially: the CQI CQI correction value of the sub-frame of uplink at PUSCH place being added the sub-frame of uplink at SRS signal place, obtains the CQI of the sub-frame of uplink at PUSCH place;
If determine the channel quality indicator CQI correction value of the sub-frame of uplink at PUSCH place according to the RIP of the sub-frame of uplink at PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, be specially: the RIP RIP of the sub-frame of uplink at PUSCH place being deducted SRS place sub-frame of uplink, obtain the CQI correction value of the sub-frame of uplink at PUSCH place; Then revise according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place, be specially: the CQI correction value that the CQI of the sub-frame of uplink at SRS signal place is deducted the sub-frame of uplink at PUSCH place, obtains the CQI of the sub-frame of uplink at PUSCH place.
Certainly, those skilled in the art also can adopt other modes to determine the CQI correction value of the sub-frame of uplink at PUSCH place, and adjusts the mode revised according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place accordingly.
For the RIP RIP of SRS place sub-frame of uplink being deducted the sub-frame of uplink at PUSCH place, obtain the execution mode of the CQI correction value of the sub-frame of uplink at described PUSCH place, the interference power values received due to PUSCH place sub-frame of uplink is larger, and the CQI correction value of the sub-frame of uplink at relative SRS place is less; The interference power values that PUSCH place sub-frame of uplink receives is less, the CQI correction value of the sub-frame of uplink at relative SRS place is larger, and the CQI correction value that the CQI of the sub-frame of uplink at PUSCH place is the sub-frame of uplink at PUSCH place adds the CQI of the sub-frame of uplink at SRS signal place, therefore the sub-frame of uplink interference power values that receives in PUSCH place is larger, and CQI is less; The interference power values that PUSCH place sub-frame of uplink receives is less, and CQI is larger.
Same, the CQI correction value of sub-frame of uplink is larger, then the initial MCS grade of this sub-frame of uplink is higher, and speed during Signal transmissions is higher; The CQI correction value of sub-frame of uplink is less, then the initial MCS grade of this sub-frame of uplink is lower, speed during Signal transmissions is lower, therefore, jointly determine initial MCS grade by the CQI correction value of the sub-frame of uplink at CQI and the PUSCH place of the sub-frame of uplink according to SRS signal place, effectively can ensure speed in signals transmission and reduce the error rate.
RIP for the sub-frame of uplink by PUSCH place deducts the RIP of SRS place sub-frame of uplink, obtains the execution mode of the CQI correction value of the sub-frame of uplink at PUSCH place, is also by same reason, improves the speed in signals transmission, and reduces the error rate.
Preferably, the concrete mode that the embodiment of the present invention provides a kind of MCS grade of the sub-frame of uplink according to PUSCH place to dispatch terminal next time, as shown in Figure 4, the MCS grade according to the sub-frame of uplink at PUSCH place in S104 is dispatched terminal next time, specifically comprises:
S1041, determine the MCS grade of next time dispatching of the sub-frame of uplink at PUSCH place according to the initial MCS grade of the sub-frame of uplink at PUSCH place and the signal interpretation result of present terminal PUSCH;
S1042, according to the MCS grade of dispatching of the sub-frame of uplink at PUSCH place next time, terminal to be dispatched next time.
The MCS grade of next time dispatching of the sub-frame of uplink at PUSCH place is determined according to the initial MCS grade of the sub-frame of uplink at PUSCH place and the signal interpretation result of present terminal PUSCH, for the MCS grade of dispatching of the sub-frame of uplink at the signal interpretation result adjustment PUSCH place of present terminal PUSCH next time, can effectively can ensure the speed of Signal transmissions and the lower error rate.
Certainly, those skilled in the art also can adopt other feasible patterns to dispatch terminal according to the MCS grade of the sub-frame of uplink at PUSCH place next time.
Preferably, the embodiment of the present invention provides a kind of PUSCH of terminal concrete grammar dispatched.
As shown in Figure 5, the method for the PUSCH scheduling of terminal specifically comprises:
The RIP of the sub-frame of uplink at S501, calculating PUSCH place;
S502, calculate the RIP difference of the sub-frame of uplink at SRS place sub-frame of uplink and PUSCH place, as the CQI correction value of the sub-frame of uplink at PUSCH place;
The CQI of S503, calculating SRS place sub-frame of uplink;
S504, by the CQI correction value of the sub-frame of uplink at CQI and the PUSCH place of SRS place sub-frame of uplink be added, obtain the CQI of the sub-frame of uplink at PUSCH place;
S505, determine the initial MCS grade of PUSCH according to the CQI of the sub-frame of uplink at PUSCH place;
S506, according to the initial MCS grade of PUSCH place sub-frame of uplink and the signal interpretation result of current PUSCH, determine the MCS grade of next time dispatching.
As shown in Figure 6, the embodiment of the present invention provides a kind of PUSCH dispatching device of terminal, comprising:
Measuring unit 601, for the RIP of the sub-frame of uplink at the uplink physical channel PUSCH place of measuring terminals;
Amending unit 602, for the RIP of RIP and the SRS place sub-frame of uplink of the sub-frame of uplink according to PUSCH place, revises the CQI of the sub-frame of uplink at SRS signal place, obtains the CQI of the sub-frame of uplink at PUSCH place;
Determining unit 603, the CQI for the sub-frame of uplink according to PUSCH place determines the initial MCS grade of the sub-frame of uplink at PUSCH place;
Scheduling unit 604, the MCS grade for the sub-frame of uplink according to PUSCH place is dispatched terminal next time.
Visible, in the PUSCH dispatching device of the terminal that the embodiment of the present invention provides, by the RIP of the sub-frame of uplink at the uplink physical channel PUSCH place of measuring terminals, carry out the correction of CQI, more initial MCS grade is determined again according to revised CQI, thus improve the speed of Signal transmissions, and reduce the error rate.
Preferably, in the embodiment of the present invention, measuring unit 601 specifically for:
The PRB power of the sub-frame of uplink at the PUSCH place of computing terminal;
When the sub-frame of uplink at PUSCH place does not exist traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink;
When the sub-frame of uplink at PUSCH place exists traffic scheduling, deduct the power of business that the thermal noise power of this sub-frame of uplink and this sub-frame of uplink be scheduled with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink.
When sub-frame of uplink does not exist traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of sub-frame of uplink, the RIP of this sub-frame of uplink can be obtained; When sub-frame of uplink exists traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of sub-frame of uplink, then deduct the power of business that this sub-frame of uplink is scheduled, the RIP of this sub-frame of uplink can be obtained; Especially, in TDD LTE system, sub-frame of uplink can only carry SRS, can not bearer service, then there is not traffic scheduling according to sub-frame of uplink to measure, namely deduct the thermal noise power of this sub-frame of uplink with the PRB power of sub-frame of uplink, the RIP of this sub-frame of uplink can be obtained.
Certainly, except the RIP method of measurement that the embodiment of the present invention provides, those skilled in the art also can adopt the RIP of the sub-frame of uplink at the PUSCH place of other mode measuring terminals, describes no longer one by one at this.
For obtaining CQI value more accurately further, amending unit 602 specifically for:
The channel quality indicator CQI correction value of the sub-frame of uplink at PUSCH place is determined according to the RIP of the sub-frame of uplink at PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink;
The CQI of CQI correction value to the sub-frame of uplink at SRS signal place according to the sub-frame of uplink at PUSCH place revises.
Concrete, according to the difference of the account form of correction value, according to the mode also corresponding difference that the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place revises.
Such as: if determine the channel quality indicator CQI correction value of the sub-frame of uplink at PUSCH place according to the RIP of the sub-frame of uplink at PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, be specially: the RIP RIP of SRS place sub-frame of uplink being deducted the sub-frame of uplink at PUSCH place, obtain the CQI correction value of the sub-frame of uplink at PUSCH place; Then revise according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place, be specially: the CQI CQI correction value of the sub-frame of uplink at PUSCH place being added the sub-frame of uplink at SRS signal place, obtains the CQI of the sub-frame of uplink at PUSCH place;
If determine the channel quality indicator CQI correction value of the sub-frame of uplink at PUSCH place according to the RIP of the sub-frame of uplink at PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, be specially: the RIP RIP of the sub-frame of uplink at PUSCH place being deducted SRS place sub-frame of uplink, obtain the CQI correction value of the sub-frame of uplink at PUSCH place; Then revise according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place, be specially: the CQI correction value that the CQI of the sub-frame of uplink at SRS signal place is deducted the sub-frame of uplink at PUSCH place, obtains the CQI of the sub-frame of uplink at PUSCH place.
Certainly, those skilled in the art also can adopt other modes to determine the CQI correction value of the sub-frame of uplink at PUSCH place, and adjusts the mode revised according to the CQI of CQI correction value to the sub-frame of uplink at SRS signal place of the sub-frame of uplink at PUSCH place accordingly.
For the RIP RIP of SRS place sub-frame of uplink being deducted the sub-frame of uplink at PUSCH place, obtain the execution mode of the CQI correction value of the sub-frame of uplink at described PUSCH place, the interference power values received due to PUSCH place sub-frame of uplink is larger, and the CQI correction value of the sub-frame of uplink at relative SRS place is less; The interference power values that PUSCH place sub-frame of uplink receives is less, the CQI correction value of the sub-frame of uplink at relative SRS place is larger, and the CQI correction value that the CQI of the sub-frame of uplink at PUSCH place is the sub-frame of uplink at PUSCH place adds the CQI of the sub-frame of uplink at SRS signal place, therefore the sub-frame of uplink interference power values that receives in PUSCH place is larger, and CQI is less; The interference power values that PUSCH place sub-frame of uplink receives is less, and CQI is larger.
Same, the CQI correction value of sub-frame of uplink is larger, then the initial MCS grade of this sub-frame of uplink is higher, and speed during Signal transmissions is higher; The CQI correction value of sub-frame of uplink is less, then the initial MCS grade of this sub-frame of uplink is lower, speed during Signal transmissions is lower, therefore, jointly determine initial MCS grade by the CQI correction value of the sub-frame of uplink at CQI and the PUSCH place of the sub-frame of uplink according to SRS signal place, effectively can ensure speed in signals transmission and reduce the error rate.
RIP for the sub-frame of uplink by PUSCH place deducts the RIP of SRS place sub-frame of uplink, obtains the execution mode of the CQI correction value of the sub-frame of uplink at PUSCH place, is also by same reason, improves the speed in signals transmission, and reduces the error rate.
Preferably, the concrete mode that the embodiment of the present invention provides a kind of MCS grade of the sub-frame of uplink according to PUSCH place to dispatch terminal next time, scheduling unit 604 specifically for:
The MCS grade of next time dispatching of the sub-frame of uplink at PUSCH place is determined according to the initial MCS grade of the sub-frame of uplink at PUSCH place and the signal interpretation result of present terminal PUSCH;
The MCS grade of next time dispatching according to the sub-frame of uplink at PUSCH place is dispatched terminal next time.
The MCS grade of next time dispatching of the sub-frame of uplink at PUSCH place is determined according to the initial MCS grade of the sub-frame of uplink at PUSCH place and the signal interpretation result of present terminal PUSCH, for the MCS grade of dispatching of the sub-frame of uplink at the signal interpretation result adjustment PUSCH place of present terminal PUSCH next time, can effectively can ensure the speed of Signal transmissions and the lower error rate.
Certainly, according to the difference of scheduling mode, scheduling unit 604 also can realize dispatching terminal according to the initial MCS grade of the sub-frame of uplink at PUSCH place by alternate manner next time.
The embodiment of the present invention provides a kind of PUSCH dispatching method and device of terminal, according to the RIP of RIP and the SRS place sub-frame of uplink of the sub-frame of uplink at the PUSCH place of terminal, the CQI of the sub-frame of uplink at SRS signal place is revised, obtain the CQI of the sub-frame of uplink at PUSCH place, determine the initial MCS grade of the sub-frame of uplink at PUSCH place again according to the CQI of the sub-frame of uplink at PUSCH place, and according to the MCS grade of the sub-frame of uplink at PUSCH place, terminal is dispatched next time.This technical scheme considers the impact of different sub-frame of uplink disturbance level on the MCS grade of scheduling PUSCH, initial MCS grade is jointly determined by the actual conditions of the sub-frame of uplink at CQI and the PUSCH place of the sub-frame of uplink according to SRS signal place, improve the speed of Signal transmissions, and reduce the error rate.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. a PUSCH dispatching method for terminal, is characterized in that, comprising:
The reception interference power values RIP of the sub-frame of uplink at the uplink physical channel PUSCH place of measuring terminals;
According to the RIP of the sub-frame of uplink at described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, the channel quality indicator CQI of the sub-frame of uplink at SRS signal place is revised, obtains the CQI of the sub-frame of uplink at described PUSCH place;
Initial modulation and the coding strategy MCS grade of the sub-frame of uplink at described PUSCH place is determined according to the CQI of the sub-frame of uplink at described PUSCH place;
MCS grade according to the sub-frame of uplink at described PUSCH place is dispatched described terminal next time;
The RIP of the described sub-frame of uplink according to described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, revises the CQI of the sub-frame of uplink at SRS signal place, specifically comprises:
The channel quality indicator CQI correction value of the sub-frame of uplink at described PUSCH place is determined according to the RIP of the sub-frame of uplink at described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink;
The CQI of CQI correction value to the sub-frame of uplink at SRS signal place according to the sub-frame of uplink at described PUSCH place revises.
2. the method for claim 1, is characterized in that, the reception interference power values RIP of the sub-frame of uplink at the PUSCH place of described measuring terminals, specifically comprises:
The Physical Resource Block PRB power of the sub-frame of uplink at the PUSCH place of computing terminal;
When the sub-frame of uplink at described PUSCH place does not exist traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink;
When the sub-frame of uplink at described PUSCH place exists traffic scheduling, deduct the power of business that the thermal noise power of this sub-frame of uplink and this sub-frame of uplink be scheduled with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink.
3. the method for claim 1, it is characterized in that, determine the channel quality indicator CQI correction value of the sub-frame of uplink at described PUSCH place according to the RIP of the sub-frame of uplink at described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, be specially:
The RIP of SRS place sub-frame of uplink is deducted the RIP of the sub-frame of uplink at described PUSCH place, obtain the CQI correction value of the sub-frame of uplink at described PUSCH place;
The CQI of CQI correction value to the sub-frame of uplink at SRS signal place according to the sub-frame of uplink at described PUSCH place revises, and is specially:
The CQI correction value of the sub-frame of uplink at described PUSCH place is added the CQI of the sub-frame of uplink at SRS signal place, obtain the CQI of the sub-frame of uplink at described PUSCH place;
Or
Determine the channel quality indicator CQI correction value of the sub-frame of uplink at described PUSCH place according to the RIP of the sub-frame of uplink at described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, be specially:
The RIP of the sub-frame of uplink at described PUSCH place is deducted the RIP of SRS place sub-frame of uplink, obtain the CQI correction value of the sub-frame of uplink at described PUSCH place;
The CQI of CQI correction value to the sub-frame of uplink at SRS signal place according to the sub-frame of uplink at described PUSCH place revises, and is specially:
The CQI of the sub-frame of uplink at SRS signal place is deducted the CQI correction value of the sub-frame of uplink at described PUSCH place, obtain the CQI of the sub-frame of uplink at described PUSCH place.
4. the method for claim 1, is characterized in that, the MCS grade of the described sub-frame of uplink according to described PUSCH place is dispatched described terminal next time, specifically comprises:
The MCS grade of next time dispatching of the sub-frame of uplink at described PUSCH place is determined according to the initial MCS grade of the sub-frame of uplink at described PUSCH place and the signal interpretation result of present terminal PUSCH;
The MCS grade of next time dispatching according to the sub-frame of uplink at described PUSCH place is dispatched described terminal next time.
5. a PUSCH dispatching device for terminal, is characterized in that, comprising:
Measuring unit, for the reception interference power values RIP of the sub-frame of uplink at the uplink physical channel PUSCH place of measuring terminals;
Amending unit, for the RIP of the sub-frame of uplink according to described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink, the channel quality indicator CQI of the sub-frame of uplink at SRS signal place is revised, obtains the CQI of the sub-frame of uplink at described PUSCH place;
Determining unit, the CQI for the sub-frame of uplink according to described PUSCH place determines initial modulation and the coding strategy MCS grade of the sub-frame of uplink at described PUSCH place;
Scheduling unit, the MCS grade for the sub-frame of uplink according to described PUSCH place is dispatched described terminal next time;
Described amending unit, specifically for:
The channel quality indicator CQI correction value of the sub-frame of uplink at described PUSCH place is determined according to the RIP of the sub-frame of uplink at described PUSCH place and the RIP of Sounding Reference Signal SRS place sub-frame of uplink;
The CQI of CQI correction value to the sub-frame of uplink at SRS signal place according to the sub-frame of uplink at described PUSCH place revises.
6. device as claimed in claim 5, is characterized in that, described measuring unit, specifically for:
The Physical Resource Block PRB power of the sub-frame of uplink at the PUSCH place of computing terminal;
When the sub-frame of uplink at described PUSCH place does not exist traffic scheduling, deduct the thermal noise power of this sub-frame of uplink with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink;
When the sub-frame of uplink at described PUSCH place exists traffic scheduling, deduct the power of business that the thermal noise power of this sub-frame of uplink and this sub-frame of uplink be scheduled with the PRB power of this sub-frame of uplink, obtain the RIP of this sub-frame of uplink.
7. device as claimed in claim 5, it is characterized in that, described amending unit determines the channel quality indicator CQI correction value of the sub-frame of uplink at described PUSCH place according to the RIP of the RIP of the sub-frame of uplink at described PUSCH place and Sounding Reference Signal SRS place sub-frame of uplink, is specially:
The RIP of SRS place sub-frame of uplink is deducted the RIP of the sub-frame of uplink at described PUSCH place, obtain the CQI correction value of the sub-frame of uplink at described PUSCH place;
Described amending unit is revised according to the CQI of the CQI correction value of the sub-frame of uplink at described PUSCH place to the sub-frame of uplink at SRS signal place, is specially:
The CQI correction value of the sub-frame of uplink at described PUSCH place is added the CQI of the sub-frame of uplink at SRS signal place, obtain the CQI of the sub-frame of uplink at described PUSCH place;
Or
Described amending unit determines the channel quality indicator CQI correction value of the sub-frame of uplink at described PUSCH place according to the RIP of the RIP of the sub-frame of uplink at described PUSCH place and Sounding Reference Signal SRS place sub-frame of uplink, is specially:
The RIP of the sub-frame of uplink at described PUSCH place is deducted the RIP of SRS place sub-frame of uplink, obtain the CQI correction value of the sub-frame of uplink at described PUSCH place;
Described amending unit is revised according to the CQI of the CQI correction value of the sub-frame of uplink at described PUSCH place to the sub-frame of uplink at SRS signal place, is specially:
The CQI of the sub-frame of uplink at SRS signal place is deducted the CQI correction value of the sub-frame of uplink at described PUSCH place, obtain the CQI of the sub-frame of uplink at described PUSCH place.
8. device as claimed in claim 5, is characterized in that, described scheduling unit, specifically for:
The MCS grade of next time dispatching of the sub-frame of uplink at described PUSCH place is determined according to the initial MCS grade of the sub-frame of uplink at described PUSCH place and the signal interpretation result of present terminal PUSCH;
The MCS grade of next time dispatching according to the sub-frame of uplink at described PUSCH place is dispatched described terminal next time.
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| CN105307273B (en) * | 2015-10-29 | 2018-08-31 | 江苏鑫软图无线技术股份有限公司 | A kind of uplink data scheduling system based on random disturbances detection |
| GB2552307A (en) * | 2016-07-12 | 2018-01-24 | Tcl Communication Ltd | Methods and devices for link adaptation under conditions of intermittent interference in wireless communication systems |
| CN111565409B (en) * | 2019-02-14 | 2021-06-11 | 大唐移动通信设备有限公司 | Noise power calculation method and device |
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