WO2012159298A1 - 一种实现上行数据发送的方法和装置 - Google Patents
一种实现上行数据发送的方法和装置 Download PDFInfo
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- WO2012159298A1 WO2012159298A1 PCT/CN2011/076407 CN2011076407W WO2012159298A1 WO 2012159298 A1 WO2012159298 A1 WO 2012159298A1 CN 2011076407 W CN2011076407 W CN 2011076407W WO 2012159298 A1 WO2012159298 A1 WO 2012159298A1
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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
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- the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for implementing uplink data transmission. Background technique
- the transmission power used by the terminal when transmitting different uplink data is also different.
- the base station allocates a certain number of RBs on the PUSCH (Physical Uplink Shared Channel) according to the current service demand and the currently available frequency band resources.
- the resource block is allocated a band resource for the terminal, and the terminal transmits the uplink service data according to the band resource allocated by the base station.
- the transmission power of the terminal when performing PUSCH uplink scheduling is high, generally above 10 dBm.
- the terminal feeds back signaling such as ACK (ACKnowledge), NACK (Negative acknowledgement), CQI (Channel Quality Indicator), or SRI (Scheduling Request Indicator), and there is no PUSCH band.
- the base station allocates a band resource to the terminal by allocating a certain number of RBs on the PUCCH (Physical Uplink Control Channel), and the terminal feeds back control signaling according to the allocated band resource.
- the transmission power is low, which is about OdBm or less.
- the transmit power of the terminal when performing uplink scheduling of the SRS (Sounding Reference Signal) is generally lower than the transmit power when performing PUSCH uplink scheduling.
- the terminal often needs to make the transmit power abruptly change in a short time when transmitting the uplink data signal. For example, if the terminal performs PUCCH uplink scheduling in a TTI (Transmission Time Interval), PUSCH scheduling is performed in the next , as shown in FIG. 1, which is a schematic diagram of a sudden change in the transmission power of the terminal, because The transmitting power of the terminal when performing PUCCH uplink scheduling is low, and the transmitting power when performing PUSCH uplink scheduling is performed. The rate is higher, therefore, as shown in Figure 1, the terminal's transmit power is abruptly changed in the first and second turns.
- TTI Transmission Time Interval
- the performance of the power control unit of the terminal is low due to the small size limitation.
- the power control unit of the terminal In the process of transmitting uplink data, when the transmission power of the terminal is required to occur in the mutation specified in the protocol within the time specified by the protocol, the power control unit of the terminal often cannot transmit the power within the time specified in the protocol due to its own limitation. Achieve mutations. When the power control unit is unable to amplify the transmit power within the time specified by the protocol, the upstream data signal will be distorted.
- the uplink data signal is distorted, when the base station receives the uplink data signal that has been distorted, the uplink data signal cannot be demodulated normally, and thus a demodulation error is generated, thereby affecting the solution of the communication system. Adjust performance.
- Figure 1 is only a schematic diagram. Actually, according to the provisions in the protocol, the terminal will not resume the transmission power within 2 such long periods of time, and will generally recover within one frame, which will also cause signal distortion. This distortion is sufficient to cause a drop in demodulation performance. Summary of the invention
- an embodiment of the present invention provides a method and apparatus for implementing uplink data transmission to improve demodulation performance of a communication system.
- a method for implementing uplink data transmission including:
- a device for implementing uplink data transmission comprising:
- a receiving unit configured to receive an uplink scheduling request sent by the terminal
- a demodulation performance determining unit configured to determine, when the current uplink scheduling is performed according to the preset scheduling policy, whether the error rate of the system is less than a preset minimum error rate; a first time-frequency resource allocation unit, configured to: when the determination result of the demodulation performance determining unit is yes, reduce the number of RBs currently scheduled in the uplink and/or decrease the MCS value, so that the error rate of the system is not less than a preset The bit error rate is the minimum value. Otherwise, the current uplink scheduling is performed according to the preset scheduling policy.
- the error rate of the system is less than the minimum value of the preset error rate, that is, when the demodulation performance of the system cannot meet the requirement,
- the number of RBs currently scheduled in the uplink or the MCS value of the current uplink scheduling is reduced, or the combination of the two is adjusted, so that the error rate of the system is not less than the minimum value of the preset error rate, thereby improving the demodulation performance of the entire system.
- Figure 1 is a schematic diagram of a sudden change in the transmit power of the terminal
- FIG. 2 is a flowchart of an embodiment of a method for implementing uplink data transmission according to the present application
- FIG. 3 is a flowchart of another embodiment of a method for implementing uplink data transmission according to the present application
- FIG. 5 is a flowchart of another embodiment of a method for implementing uplink data transmission according to the present application
- FIG. 6 is a device for implementing uplink data transmission according to the present application.
- FIG. 7 is a schematic structural diagram of a demodulation performance judging unit according to an embodiment of the present application;
- FIG. 8 is a schematic structural diagram of a demodulation performance judging unit according to another embodiment of the present application.
- a schematic structural diagram of a demodulation performance judging unit in another embodiment FIG. 10 is a schematic structural diagram of a demodulation performance judging unit in an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of an apparatus for implementing uplink data transmission in another embodiment of the present application. detailed description
- FIG. 2 is a flow diagram of an embodiment of a method for implementing uplink data transmission according to the present application.
- the method includes the following steps:
- Step 201 Receive a current uplink scheduling request sent by the terminal.
- the terminal before the terminal sends the uplink data, it needs to send an uplink scheduling request to the base station to obtain the time-frequency resource allocated by the base station to the terminal for transmitting the uplink data.
- Step 202 When performing the current uplink scheduling according to the preset scheduling policy, determining whether the error rate of the system is less than the preset minimum error rate, if yes, proceeding to step 203, otherwise, proceeding to step 204;
- the manner of the preset scheduling policy itself is not specifically limited.
- the current uplink scheduling may be performed by using any one of the scheduling policies in the prior art, or any one may be used.
- a scheduling policy that is improved over the prior art performs current uplink scheduling.
- Step 203 Reduce the number of resource block RBs of the current uplink scheduling and/or reduce the MCS value of the modulation and coding mode, so that the error rate of the system is not less than the minimum value of the preset error rate, and then the process ends.
- the base station In order to avoid the influence of the sudden change of the transmission power on the uplink data signal, the base station first determines whether the BER of the system is less than the minimum value of the preset error rate if the current uplink scheduling is performed according to the preset scheduling policy, and if so, The preset scheduling policy performs the current uplink scheduling and cannot meet the requirements of the system for demodulation performance. Therefore, the number of RBs currently scheduled in the uplink or the MCS value can be reduced, thereby improving the error rate of the system and causing errors in the system. The rate is not less than the preset minimum bit error rate.
- the number of RBs currently scheduled in the uplink and the MCS value may be reduced at the same time, and finally the error rate of the system is not less than the preset minimum error rate.
- the error rate of the system is increased to not less than the minimum value of the preset error rate, the demodulation performance of the system is also improved, thereby avoiding the problem of demodulation performance degradation caused by distortion.
- the number of RBs scheduled by the uplink may be determined by testing. Calculate the signal-to-noise ratio of the system with the MSC value, and further determine the error rate of the system by the signal-to-noise ratio of the system, fix the MSC value, and continuously adjust the current number of RBs scheduled in the uplink, so that the error rate of the system is not less than the preset.
- the number of RBs corresponding to the minimum bit error rate is the requirement. The number of RBs.
- the signal-to-noise ratio of the system can be calculated according to the number of RBs and the MCS value of the uplink scheduling, and the BER of the system is determined by the signal-to-noise ratio of the system, and the number of RBs scheduled in the uplink is fixed.
- the MCS value of the current uplink scheduling is adjusted, and the MCS value corresponding to the error rate of the system is not less than the minimum value of the preset error rate is the MCS value that meets the requirements.
- the number of RBs and the MCS value of the current uplink scheduling may be adjusted at the same time by the test.
- the BER number and the MCS value corresponding to the error rate of the system are not less than the minimum value of the preset error rate.
- the specific value of the preset error rate minimum value is not limited in the embodiment of the present application, and may be arbitrarily set according to the specific requirements of the user for the demodulation performance of the system. For example, when the user has high requirements on the demodulation performance of the system, a higher bit error rate minimum value can be set. When the user has low requirements on the demodulation performance of the system, a lower bit error rate can be set. value.
- Step 204 Perform current uplink scheduling according to the preset scheduling policy, and end the process.
- the error rate of the system is not less than the preset minimum error rate. This indicates that if the current uplink scheduling is performed according to the preset scheduling policy, the system can meet the requirements for demodulation performance. Therefore, the current uplink scheduling is performed directly according to the preset scheduling policy.
- the error rate of the system is less than the minimum value of the preset error rate, that is, when the demodulation performance of the system cannot meet the requirement,
- the number of RBs currently scheduled in the uplink or the MCS value of the current uplink scheduling is reduced, or the combination of the two is adjusted, so that the error rate of the system is not less than the minimum value of the preset error rate, thereby improving the demodulation performance of the entire system.
- the determining process of whether the error rate of the system is less than the minimum value of the preset error rate is further defined by identifying the scheduling type of the two uplink schedulings.
- the uplink scheduling performed by the terminal twice is PUCCH scheduling and PUSCH scheduling, respectively, indicating that the transmission power of the terminal may need to be abruptly changed in a short time, for example, sudden rise or sudden drop, if the terminal cannot be caused by its own performance. A sudden change in the transmit power will cause distortion of the uplink data signal, which in turn affects the demodulation performance of the system. Further, it is required to determine whether the error rate of the system is less than a preset minimum error rate to know whether the uplink data signal is distorted. Please refer to Figure 3, It is a flowchart of another embodiment of a method for implementing uplink data transmission, which includes the following steps:
- Step 301 Receive an uplink scheduling request sent by the terminal.
- Step 302 Identify the current uplink scheduling and the scheduling type of the previous scheduling of the current uplink scheduling. Specifically, if the current uplink data requires the base station to perform PUSCH scheduling on the terminal, the base station further queries the type of the previous scheduling of the current uplink scheduling, where After each time the uplink time-frequency resource is allocated to the terminal, the base station can record and save the channel type of each uplink scheduling and the number of RBs (Resource Blocks) occupied by each uplink scheduling. In this way, the base station can learn the channel type of the previous scheduled current uplink scheduling by querying the saved record.
- RBs Resource Blocks
- the base station learns that the previous uplink scheduling of the current uplink scheduling is the PUCCH scheduling, the transmitting power of the PUSCH scheduling is lower when the terminal performs the PUCCH scheduling, and the transmitting power is higher when the PUSCH scheduling is performed. Therefore, the base station can It is known that the transmission power of the terminal will be abrupt in a short time when transmitting the uplink data signal, and this mutation may cause the uplink data signal to be distorted, thereby affecting the demodulation performance of the system.
- Step 303 If the current uplink scheduling is PUSCH scheduling, and the current scheduling of the current uplink scheduling is PUCCH scheduling, when the current uplink scheduling is performed according to the preset scheduling policy, it is determined whether the error rate of the system is smaller than a preset minimum error rate. Value, if yes, proceeds to step 304, otherwise, proceeds to step 305;
- step 202 refers to the method in step 202 in the first embodiment, so that the base station obtains the type of two adjacent uplink schedulings. Since it has been described in detail in the first embodiment, it will not be described again here.
- Step 304 Reduce the number of RBs currently scheduled in the uplink and/or decrease the MCS value, so that the error rate of the system is not less than the minimum value of the preset error rate;
- the base station In order to avoid the influence of the sudden change of the transmission power on the uplink data signal, the base station first determines whether the BER of the system is less than the minimum value of the preset error rate if the current uplink scheduling is performed according to the preset scheduling policy, and if so, The preset scheduling policy performs the current uplink scheduling and cannot meet the requirements of the system for demodulation performance. Therefore, the number of RBs currently scheduled in the uplink or the MCS value can be reduced, thereby improving the error rate of the system and causing errors in the system. The rate is not less than the preset minimum bit error rate. It is also possible to reduce the number of RBs currently scheduled in the uplink and reduce the MCS value, and finally make the error rate of the system not less than the preset minimum error rate.
- the method can be continuously adjusted by testing.
- the number of RBs that are currently scheduled for the uplink, and the number of RBs corresponding to the error rate of the system is not less than the minimum value of the preset error rate.
- the MCS value of the current uplink scheduling may be continuously adjusted by means of testing, and the MCS value corresponding to the error rate of the system is not less than the minimum value of the preset error rate, that is, the MCS value that satisfies the requirement.
- the number of RBs and the MCS value of the current uplink scheduling may be adjusted at the same time by the test.
- the BER number and the MCS value corresponding to the error rate of the system are not less than the minimum value of the preset error rate.
- the number of RBs and the MCS value are not less than the minimum value of the preset error rate.
- the specific value of the minimum bit error rate is not limited in the embodiment of the present application, and may be arbitrarily set according to the specific requirements of the user for the demodulation performance of the system. For example, when the user has high requirements on the demodulation performance of the system, a higher bit error rate minimum value can be set. When the user has low requirements on the demodulation performance of the system, a lower bit error rate can be set. value.
- the uplink scheduling of the two adjacent uplinks is the PUSCH scheduling
- the difference between the number of RBs of the current uplink scheduling requirement and the number of RBs allocated by the previous uplink scheduling to the terminal (Wi ⁇ _ i si ) is calculated.
- the ratio ( ) this embodiment will be divided into four numerical intervals according to the difference and the ratio:
- the number, RB diff is the maximum difference between the number of RBs currently scheduled in the uplink and the number of RBs scheduled in the previous one, and N is greater than or equal to 4.
- the value interval is four: when the difference is less than or equal to, and the ratio is less than N, the current uplink scheduling is performed according to a preset scheduling policy, where RB diff is between the number of RBs currently scheduled in the uplink and the number of RBs scheduled in the previous one.
- the maximum difference, N is greater than or equal to 4.
- N is an interval greater than or equal to 4.
- N is a certain value in the interval.
- Step 305 Perform current uplink scheduling according to the preset scheduling policy.
- the preset scheduling policy is not specifically limited, and the current uplink scheduling may be performed by using any scheduling policy in the prior art.
- step 302 if the current uplink scheduling is identified as PUCCH scheduling or SRS scheduling, step 305 is directly performed, that is, the current uplink scheduling is performed according to the preset scheduling policy.
- the error rate of the system is smaller than the preset error rate minimum.
- the BER of the system is adjusted by reducing the number of RBs of the latter PUSCH or the MCS value of the latter PUSCH, or a combination of the two. The minimum bit error rate is set, which can improve the demodulation performance of the entire system.
- the determining process of whether the error rate of the system is less than the minimum value of the preset error rate is further defined by identifying the scheduling type of the two uplink schedulings. It is recognized that when the uplink scheduling performed by the terminal twice is scheduled for PUSCH, it indicates that the transmission power of the terminal may need to be abruptly changed in a short time, for example, sudden rise or sudden drop, if the terminal cannot achieve the transmission power due to its own performance. The mutation will cause the uplink data signal to be distorted, which will affect the demodulation performance of the system. Further, it is required to determine whether the error rate of the system is less than a preset minimum error rate to know whether the uplink data signal is distorted.
- Step 401 Receive a current uplink scheduling request sent by the terminal.
- Step 402 Identify the current uplink scheduling and the scheduling type of the previous scheduling of the current uplink scheduling.
- Step 403 If the current uplink scheduling is PUSCH scheduling, and the previous scheduling of the current uplink scheduling is PUSCH scheduling, when performing the scheduling policy according to the preset scheduling policy During the current uplink scheduling, it is determined whether the error rate of the system is less than the preset minimum error rate, and if so, proceeds to step 404, otherwise, proceeds to step 405;
- the current uplink scheduling may be identified as the PUSCH scheduling, and the previous scheduling of the current uplink scheduling.
- the judgment action of step 403 is performed when scheduling for SRS.
- Step 404 Reduce the number of RBs currently scheduled in the uplink and/or decrease the MCS value, so that the error rate of the system is not less than the minimum value of the preset error rate, and the process ends.
- the base station In order to avoid the influence of the sudden change of the transmission power on the uplink data signal, the base station first determines whether the BER of the system is less than the minimum value of the preset error rate if the current uplink scheduling is performed according to the preset scheduling policy, and if so, The preset scheduling policy performs the current uplink scheduling and cannot meet the requirements of the system for demodulation performance. Therefore, the number of RBs currently scheduled in the uplink or the MCS value can be reduced, thereby improving the error rate of the system and causing errors in the system. The rate is not less than the preset minimum bit error rate.
- the number of RBs currently scheduled in the uplink and the MCS value may be reduced at the same time, and finally the error rate of the system is not less than the preset minimum error rate.
- the error rate of the system is increased to not less than the minimum value of the preset error rate, the demodulation performance of the system is also improved, thereby avoiding the problem of demodulation performance degradation caused by distortion.
- the number of RBs or the MCS value can be reduced in the manner of step 203 in the first embodiment, and details are not described herein again.
- the specific value of the minimum bit error rate is not limited in the embodiment of the present application, and may be arbitrarily set according to the specific requirements of the user for the demodulation performance of the system. For example, when the user has high requirements on the demodulation performance of the system, a higher bit error rate minimum value can be set. When the user has low requirements on the demodulation performance of the system, a lower bit error rate can be set. value.
- Step 405 Perform current uplink scheduling according to the preset scheduling policy, and end the process.
- the preset scheduling policy is not specifically limited, and may be adopted. Any one of the prior art scheduling policies performs current uplink scheduling.
- step 402 if the current uplink scheduling is identified as PUCCH scheduling or SRS scheduling, step 405 is directly performed, that is, the current uplink scheduling is performed according to the preset scheduling policy.
- the error rate of the system is smaller than the preset error rate minimum.
- the BER of the system is adjusted by reducing the number of RBs currently scheduled in the uplink or reducing the MCS value of the current uplink scheduling, or a combination of the two. The minimum bit error rate is set, which can improve the demodulation performance of the entire system.
- the determining process of whether the error rate of the system is less than the minimum value of the preset error rate is further defined, and the terminal is identified by identifying the scheduling type of the current uplink scheduling.
- the current uplink scheduling includes both the PUSCH scheduling and the SRS scheduling, that is, the current uplink scheduling uses both the PUSCH scheduling type and the SRS scheduling type, indicating that the terminal's transmitting power may need to be abrupt in a short time, for example, suddenly rising. Or suddenly drop, if the terminal can not make the transmission power abrupt due to its own performance, it will cause the uplink data signal to be distorted, which will affect the demodulation performance of the system.
- FIG. 5 it is a flowchart of another embodiment of a method for implementing uplink data transmission, which includes the following steps:
- Step 501 Receive an uplink scheduling request sent by the terminal.
- Step 502 Identify a scheduling type of the current uplink scheduling.
- Step 503 If the current uplink scheduling includes both the PUSCH scheduling and the SRS scheduling, when performing the current uplink scheduling according to the preset scheduling policy, determining whether the error rate of the system is less than a preset minimum error rate, and if yes, entering the step 504, otherwise, proceed to step 505;
- step 202 refers to the method in step 202 in the first embodiment, so that the base station obtains the type of two adjacent uplink schedulings. Since it has been described in detail in the first embodiment, it will not be described again here.
- Step 504 Reduce the number of RBs scheduled for PUSCH in the current uplink scheduling and/or decrease the MCS.
- the value is such that the error rate of the system is not less than the minimum value of the preset error rate, and the process ends;
- the base station In order to avoid the influence of the sudden change of the transmission power on the uplink data signal, the base station first determines whether the BER of the system is less than the minimum value of the preset error rate if the current uplink scheduling is performed according to the preset scheduling policy, and if so, The preset scheduling policy performs the current uplink scheduling, which cannot meet the requirements of the system for demodulation performance. Therefore, the number of RBs scheduled for PUSCH scheduling in the current uplink scheduling or the MCS value can be reduced, thereby improving the error rate of the system and enabling the system.
- the error rate is not less than the preset minimum bit error rate.
- the number of RBs currently scheduled in the uplink and the MCS value may be reduced at the same time, and finally the error rate of the system is not less than the preset minimum error rate.
- the error rate of the system is increased to not less than the minimum value of the preset error rate, the demodulation performance of the system is also improved, thereby avoiding the problem of demodulation performance degradation caused by distortion.
- the number of RBs or the MCS value can be reduced in the manner of step 203 in the first embodiment, and details are not described herein again.
- the specific value of the minimum bit error rate is not limited in the embodiment of the present application, and may be arbitrarily set according to the specific requirements of the user for the demodulation performance of the system. For example, when the user has high requirements on the demodulation performance of the system, a higher bit error rate minimum value can be set. When the user has low requirements on the demodulation performance of the system, a lower bit error rate can be set. value.
- Step 505 Perform current uplink scheduling according to the preset scheduling policy, and end the process.
- the preset scheduling policy is not specifically limited, and the current uplink scheduling may be performed by using any scheduling policy in the prior art.
- step 502 if the current uplink scheduling is identified as
- step 505 is directly performed, that is, the current uplink scheduling is performed according to the preset scheduling policy.
- the current uplink scheduling includes both the PUSCH scheduling and the SRS scheduling
- the current uplink scheduling is performed according to the preset scheduling policy
- the error rate of the system is less than the preset minimum error rate
- the BER of the PUSCH scheduling in the uplink scheduling is reduced or the MCS value of the PUSCH scheduling is reduced, or the combination of the two is adjusted, so that the error rate of the system is not less than the preset error.
- the minimum code rate can improve the demodulation performance of the entire system.
- the embodiment of the present application further provides an apparatus for implementing uplink data transmission corresponding to the method for implementing uplink data transmission in Embodiment 1.
- FIG. 6 is a structural diagram of an embodiment of an apparatus for implementing uplink data transmission according to the present application.
- the apparatus includes: a receiving unit 601, a demodulation performance determining unit 602, and a first time-frequency resource allocating unit 603.
- the internal structure and connection relationship are further introduced below in conjunction with the working principle of the device.
- the receiving unit 601 is configured to receive an uplink scheduling request sent by the terminal.
- the demodulation performance determining unit 602 is configured to determine, when the current uplink scheduling is performed according to the preset scheduling policy, whether the error rate of the system is less than a preset minimum error rate;
- the first time-frequency resource allocation unit 603 is configured to: when the determination result of the demodulation performance determining unit is yes, reduce the number of current uplink scheduled RBs and/or decrease the MCS value, so that the error rate of the system is not less than a preset The minimum error rate is low. Otherwise, the current uplink scheduling is performed according to the preset scheduling policy.
- FIG. 7 is a schematic structural diagram of a demodulation performance determining unit in an embodiment of the present application.
- the demodulation performance determining unit 602 includes: a first identifying subunit 6021 and a first determining Subunit 6022, wherein
- a first identifying sub-unit 6021 configured to identify a scheduling type of a current uplink scheduling and a previous scheduling of the current uplink scheduling
- the first determining sub-unit 6022 is configured to determine, if the current uplink scheduling is the physical uplink shared channel PUSCH scheduling, and the current scheduling of the current uplink scheduling is PUCCH scheduling, determine whether the error rate of the system is less than a preset minimum error rate.
- the demodulation performance determining unit 602 includes: a first identifying subunit 6021 and a second determining subunit 6023, see FIG. 8, which is a demodulation performance in another embodiment of the present application.
- FIG. 8 is a demodulation performance in another embodiment of the present application.
- a first identifying sub-unit 6021 configured to identify a scheduling type of a current uplink scheduling and a previous scheduling of the current uplink scheduling
- the second determining sub-unit 6023 is configured to determine whether the error rate of the system is less than a preset minimum error rate if the current uplink scheduling is PUSCH scheduling, and the current scheduling scheduled by the current uplink is PUSCH scheduling.
- the demodulation performance determining unit 602 includes: a first identifier
- the unit 6021 and the third determining sub-unit 6024 please refer to FIG. 9, which is a schematic structural diagram of a demodulation performance determining unit according to still another embodiment of the present application, where
- a first identifying sub-unit 6021 configured to identify a scheduling type of a current uplink scheduling and a previous scheduling of the current uplink scheduling
- the third determining sub-unit 6024 is configured to determine, if the current uplink scheduling is a PUSCH scheduling, and the current scheduling scheduled by the current uplink is an SRS scheduling, determine whether the error rate of the system is less than a preset minimum error rate.
- FIG. 10 is a schematic structural diagram of a demodulation performance determining unit according to an embodiment of the present application.
- the demodulation performance determining unit 602 includes:
- a second identifying sub-unit 6025 configured to identify a type of the current uplink scheduling
- the fourth determining sub-unit 6026 is configured to determine, if the current uplink scheduling includes both the PUSCH scheduling and the SRS scheduling, whether the error rate of the system is less than a preset minimum error rate,
- the first time-frequency resource allocation unit 603 is configured to: when the determination result of the fourth determining sub-unit is YES, reduce the number of RBs scheduled for PUSCH in the current uplink scheduling, and/or decrease the MCS value, so that the error rate of the system is Not less than the preset error rate minimum value. Otherwise, the current uplink scheduling is performed according to the preset scheduling policy.
- FIG. 11 is a schematic structural diagram of an apparatus for implementing uplink data transmission according to another embodiment of the present application.
- the apparatus further includes a second time on the basis of FIG.
- the frequency resource allocation unit 604 is configured to perform current uplink scheduling according to the preset scheduling policy if the current uplink scheduling is PUCCH scheduling or SRS scheduling.
- the beneficial effects are as follows:
- the error rate of the system is less than the minimum value of the preset error rate, that is, when the demodulation performance of the system cannot meet the requirements.
- the error rate of the system is not less than the minimum value of the preset error rate, thereby improving the overall system. Demodulation performance.
- all or part of the processes in the foregoing embodiments can be implemented by a computer program to instruct related hardware, and the program can be stored in a computer readable storage.
- the method may include the above methods The flow of an embodiment.
- the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
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Abstract
一种实现上行数据发送的方法和装置。其中,方法包括:接收终端发送的当前上行调度请求;当按照预置的调度策略执行当前上行调度时,判断系统的误码率是否小于预置的误码率最小值;如果是,减少当前上行调度的RB数量和/或降低MCS值,使系统的误码率不小于预置的误码率最小值,否则,按照所述预置的调度策略执行当前上行调度。根据本申请实施例,可以提高通信系统的解调性能。
Description
一种实现上行数据发送的方法和装置 技术领域
本发明涉及无线通信技术领域,特别是涉及一种实现上行数据发送的方法 和装置。 背景技术
在 LTE ( Long Term Evolution, 长期演进 )蜂窝系统中, 终端在发送不同 的上行数据时采用的发射功率也会不同。例如, 当终端发送的上行数据为业务 数据时,基站根据当前业务的需求及当前可利用的频带资源,通过分配 PUSCH ( Physical Uplink Shared Channel, 物理上行共享信道) 上一定个数的 RB ( Resource Block, 资源块) 而为终端分配频带资源, 终端再才艮据基站分配的 频带资源发送上行业务数据。 通常, 终端执行 PUSCH上行调度时的发射功率 较高, 一般在 lOdBm以上。 当终端反馈 ACK ( ACKnowledge , 肯定确认)、 NACK( Negative acknowledgement ,否定确认 )、 CQI( Channel Quality Indicator, 信道质量指示 )或者 SRI ( Scheduling Request Indicator, 调度请求指示 )等信 令,并且又没有 PUSCH频带资源可以利用时,基站通过分配 PUCCH( Physical Uplink Control Channel, 物理上行控制信道 )上一定个数的 RB而为终端分配 频带资源,终端再根据分配的频带资源反馈控制信令。通常,终端执行 PUCCH 上行调度时的发射功率较低, 大约在 OdBm 以下。 另外, 终端在执行 SRS ( Sounding Reference Signal, 信道探测参考信号 )上行调度时的发射功率通常 比执行 PUSCH上行调度时的发射功率低。
通常, 由于功率控制方法的不同、 发射功率的不同, 或者上行调度的间隔 时间的不同等原因,终端在发送上行数据信号时往往需要使发射功率在短时间 内发生突变。 例如, 如果终端在一个 TTI ( Transmission Time Interval, 传输 时间间隔 ) 内执行 PUCCH上行调度, 在紧接着的 ΤΉ内执行 PUSCH调度, 如图 1 所示, 其为终端发射功率发生突变的一个示意图, 由于终端在执行 PUCCH上行调度时的发射功率较低, 而在执行 PUSCH上行调度时的发射功
率较高, 因此, 如图 1所示, 终端的发射功率在第一个 ΤΉ和第二个 ΤΉ内发 生了突变。
对于多数终端而言, 由于受到体积小的限制,致使终端的功率控制单元的 性能较低。在发送上行数据的过程中, 当要求终端的发射功率在协议规定的时 间内发生图 1所示的突变时, 由于自身的限制, 终端的功率控制单元往往无法 将发射功率在协议规定的时间内实现突变。当功率控制单元无法将发射功率在 协议规定的时间内实现突变时, 上行数据信号将发生畸变。
而如果上行数据信号发生了畸变,当基站接收到已发生畸变的上行数据信 号时, 也就无法正常解调该上行数据信号, 由此也会产生解调错误, 进而, 影 响了通信系统的解调性能。
另外, 图 1 仅为一种示意图, 而实际根据协议中的规定, 终端不会在 2 个 ΤΉ如此长的时间内才恢复发射功率,一般会在一个 ΤΉ内恢复,也会导致 信号的畸变, 这种畸变足以导致解调性能的下降。 发明内容
为了解决上述技术问题,本发明实施例提供了一种实现上行数据发送的方 法和装置, 以提高通信系统的解调性能。
本发明实施例公开了如下技术方案:
一种实现上行数据发送的方法, 包括:
接收终端发送的当前上行调度请求;
当按照预置的调度策略执行当前上行调度时,判断系统的误码率是否小于 预置的误码率最小值;
如果是,减少当前上行调度的资源块 RB数量和 /或降低调制编码方式 MCS 值, 使系统的误码率不小于预置的误码率最小值, 否则, 按照所述预置的调度 策略执行当前上行调度。
一种实现上行数据发送的装置, 包括:
接收单元, 用于接收终端发送的上行调度请求;
解调性能判断单元, 用于当按照预置的调度策略执行当前上行调度时, 判 断系统的误码率是否小于预置的误码率最小值;
第一时频资源分配单元, 用于当所述解调性能判断单元的判断结果为是 时, 减少当前上行调度的 RB数量和 /或降低 MCS值, 使系统的误码率不小于 预置的误码率最小值, 否则, 按照所述预置的调度策略执行当前上行调度。
由上述实施例可以看出, 当按照预置的调度策略执行当前上行调度, 系统 的误码率小于预置的误码率最小值时, 即, 系统的解调性能无法满足要求时, 通过减少当前上行调度的 RB数量或者降低当前上行调度的 MCS值, 或者两 者结合的方式进行调整,使系统的误码率不小于预置的误码率最小值,从而可 以提高整个系统的解调性能。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲, 在不付 出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为终端发射功率发生突变的一个示意图;
图 2为本申请一种实现上行数据发送的方法的一个实施例的流程图; 图 3为本申请一种实现上行数据发送的方法的另一个实施例的流程图; 图 4为本申请一种实现上行数据发送的方法的另一个实施例的流程图; 图 5为本申请一种实现上行数据发送的方法的另一个实施例的流程图; 图 6为本申请一种实现上行数据发送的装置的一个实施例的结构示意图; 图 7为本申请一个实施例中解调性能判断单元的一个结构示意图; 图 8为本申请另一个实施例中解调性能判断单元的结构示意图; 图 9为本申请又一个实施例中解调性能判断单元的结构示意图; 图 10为本申请一个实施例中解调性能判断单元的结构示意图;
图 11为本申请另一个实施例中实现上行数据发送的装置的结构示意图。 具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂, 下面结合附图对 本发明实施例进行详细描述。
实施例一
请参阅图 2, 其为本申请一种实现上行数据发送的方法的一个实施例的流 程图。 该方法包括以下步骤:
步骤 201 : 接收终端发送的当前上行调度请求;
例如, 在终端发送上行数据之前, 需要向基站发送一个上行调度请求, 以 获得基站分配给终端的、 用于发送上行数据的时频资源。
步骤 202: 当按照预置的调度策略执行当前上行调度时, 判断系统的误码 率是否小于预置的误码率最小值时, 如果是, 进入步骤 203 , 否则, 进入步骤 204;
需要说明的是,本申请实施例对预置的调度策略本身是什么样的方式不做 具体限定,可以采用现有技术中的任何一种调度策略执行当前上行调度,或者, 也可以采用任何一种对现有技术进行改进了的调度策略执行当前上行调度。
步骤 203: 减少当前上行调度的资源块 RB数量和 /或降低调制编码方式 MCS值, 使系统的误码率不小于预置的误码率最小值, 然后结束流程。
为了避免发射功率的突变对上行数据信号的影响,基站先判断如果按照预 置的调度策略执行当前上行调度, 系统的误码率是否小于预置的误码率最小 值, 如果是, 说明如果按照预置的调度策略执行当前上行调度, 无法满足系统 对解调性能的要求, 因此, 可以减少当前上行调度的 RB数量或者降低 MCS 值, 以此来提高系统的误码率, 使系统的误码率不小于预置的误码率最小值。 或者, 也可以同时减少当前上行调度的 RB数量和减低 MCS值, 最终使系统 的误码率不小于预置的误码率最小值。当系统的误码率提高到不小于预置的误 码率最小值后, 系统的解调性能也就随之提高,从而避免了畸变而带来的解调 性能下降的问题。
例如, 在一个系统中, 当相邻两次上行调度的功率变化大小(当前上行调 度的功率和当前上行调度的前一个调度的功率)确定时,可以通过测试的方式, 根据上行调度的 RB数量和 MSC值计算系统的信噪比, 并进一步由系统的信 噪比确定系统的误码率, 将 MSC值固定, 不断调整当前上行调度的 RB数量, 使系统的误码率不小于预置的误码率最小值时所对应的 RB个数即为满足要求
的 RB数量。 同样, 也可以通过测试的方式, 根据上行调度的 RB数量和 MCS 值计算系统的信噪比, 并进一步由系统的信噪比确定系统的误码率,将上行调 度的 RB个数固定, 不断调整当前上行调度的 MCS值, 系统的误码率不小于 预置的误码率最小值时所对应的 MCS值即为满足要求的 MCS值。 当然, 还 可以通过测试的方式, 同时调整当前上行调度的 RB数量和 MCS值, 系统的 误码率不小于预置的误码率最小值时所对应的 RB个数和 MCS值即为满足要 求的 RB数量和 MCS值。
需要说明的是,本申请实施例对预置的误码率最小值的具体数值并不进行 限定, 可以根据用户对系统的解调性能的具体要求进行任意设置。 例如, 当用 户对系统的解调性能要求较高时, 可以设置一个较高的误码率最小值, 当用户 对系统的解调性能要求较低时, 可以设置一个较低的误码率最小值。
步骤 204: 按照所述预置的调度策略执行当前上行调度, 结束流程。
如果按照预置的调度策略执行当前上行调度,系统的误码率不小于预置的 误码率最小值,说明如果按照预置的调度策略执行当前上行调度, 能够满足系 统对解调性能的要求, 因此, 直接按照预置的调度策略执行当前上行调度。
由上述实施例可以看出, 当按照预置的调度策略执行当前上行调度, 系统 的误码率小于预置的误码率最小值时, 即, 系统的解调性能无法满足要求时, 通过减少当前上行调度的 RB数量或者降低当前上行调度的 MCS值, 或者两 者结合的方式进行调整,使系统的误码率不小于预置的误码率最小值,从而可 以提高整个系统的解调性能。 实施例二
本实施例与实施例一的区别在于,对系统的误码率是否小于预置的误码率 最小值的判断过程进行了进一步的限定,当通过识别相邻两次上行调度的调度 类型, 而识别出终端相邻两次执行的上行调度分别为 PUCCH调度和 PUSCH 调度时, 说明终端的发射功率有可能需要在短时间内产生突变, 例如, 突然上 升或突然下降,如果终端由于自身性能无法使发射功率实现突变,会导致上行 数据信号发生畸变, 进而影响系统的解调性能。进而需要判断系统的误码率是 否小于预置的误码率最小值来获知上行数据信号是否发生畸变。 请参阅图 3 ,
其为本申请一种实现上行数据发送的方法的另一个实施例的流程图,包括以下 步骤:
步骤 301 : 接收终端发送的上行调度请求;
步骤 302: 识别当前上行调度和当前上行调度的前一个调度的调度类型; 具体地, 如果当前上行数据需要基站对终端进行 PUSCH调度, 则基站进 一步查询当前上行调度的前一个调度的类型, 这里,基站可以在每一次为终端 分配上行时频资源后,记录并保存每一次上行调度的信道类型以及每一次上行 调度所占用的 RB ( Resource Block , 资源块)个数。 这样, 基站可以通过查 询保存的记录而获知当前上行调度的前一个调度的信道类型。当基站通过查询 获知当前上行调度的前一个上行调度为 PUCCH调度时,由于终端执行 PUCCH 调度时的发射功率较低, 而执行 PUSCH调度时的发射功率较高, 因此, 通过 上述判断,基站就可以获知终端在发送上行数据信号时发射功率在短时间内会 发生突变, 而这种突变可能会使上行数据信号发生畸变, 进而影响系统的解调 性能。
步骤 303: 如果当前上行调度为 PUSCH调度, 且当前上行调度的前一个 调度为 PUCCH调度当按照预置的调度策略执行当前上行调度时,判断系统的 误码率是否小于预置的误码率最小值, 如果是, 进入步骤 304, 否则, 进入步 骤 305;
其中, 可以参见实施例一中步骤 202的方式,使基站获得相邻两次上行调 度的类型。 由于在实施例一中已经进行了详细地描述, 故此处不再赘述。
步骤 304: 减少当前上行调度的 RB数量和 /或降低 MCS值, 使系统的误 码率不小于预置的误码率最小值;
为了避免发射功率的突变对上行数据信号的影响,基站先判断如果按照预 置的调度策略执行当前上行调度, 系统的误码率是否小于预置的误码率最小 值, 如果是, 说明如果按照预置的调度策略执行当前上行调度, 无法满足系统 对解调性能的要求, 因此, 可以减少当前上行调度的 RB数量或者降低 MCS 值, 以此来提高系统的误码率, 使系统的误码率不小于预置的误码率最小值。 也可以同时减少当前上行调度的 RB数量和减低 MCS值, 最终使系统的误码 率不小于预置的误码率最小值。
例如, 在一个系统中, 当信噪比和相邻两次上行调度的功率变化大小(当 前上行调度的功率和当前上行调度的前一个调度的功率)确定时, 可以通过测 试的方式, 不断调整当前上行调度的 RB数量, 系统的误码率不小于预置的误 码率最小值时所对应的 RB个数即为满足要求的 RB数量。 同样, 也可以通过 测试的方式, 不断调整当前上行调度的 MCS值, 系统的误码率不小于预置的 误码率最小值时所对应的 MCS值即为满足要求的 MCS值。 当然, 还可以通 过测试的方式, 同时调整当前上行调度的 RB数量和 MCS值, 系统的误码率 不小于预置的误码率最小值时所对应的 RB个数和 MCS值即为满足要求的 RB 数量和 MCS值。
需要说明的是, 本申请实施例对误码率最小值的具体数值并不进行限定, 可以根据用户对系统的解调性能的具体要求进行任意设置。例如, 当用户对系 统的解调性能要求较高时, 可以设置一个较高的误码率最小值, 当用户对系统 的解调性能要求较低时, 可以设置一个较低的误码率最小值。
具体的, 当相邻两次的上行调度都为 PUSCH调度时, 计算当前上行调度 需求的 RB个数 与前一次上行调度分配给终端的 RB个数 之间的差值 ( Wi^ _ i si )和比值( ), 本实施例将才艮据该差值和比值, 划分为四个 数值区间:
数值区间一: 当所述差值大于 且所述比值大于或者等于 N时, 将 当前上行调度的 RB数量降低到 Rl^个数, = min(/^Za i + RBdiff , RBlast xm) , RBlast为当前调度的前一个调度的 RB数量, RB 为当前上行调度的 RB数量与 前一个调度的 RB数量之间的最大差值, N大于或者等于 4, min()为取最小值 函数。
数值区间二: 当所述差值小于 且所述比值小于 Ν时, 将当前上行 调度的 RB数量降低到 Rfi2个数, RB2 = RBlast + RBdiff , 为当前调度的前一 个调度的 RB数量, RBdiff为当前上行调度的 RB数量与前一个调度的 RB数量 之间的最大差值, N大于或者等于 4。
数值区间三: 当所述差值小于或者等于 且所述比值大于或者等于 N 时, 将当前上行调度的 RB数量减低到 R£3个数, RB3 = RBlast x 2 , RBhst为当前 调度的前一个调度的 RB数量, RBdiff为当前上行调度的 RB数量与前一个调度
的 RB数量之间的最大差值, N大于或者等于 4。
数值区间四: 当所述差值小于或者等于 , 且所述比值小于 N时, 按 照预置的调度策略执行当前上行调度, RBdiff为当前上行调度的 RB数量与前一 个调度的 RB数量之间的最大差值, N大于或者等于 4。
需要说明的是, N的取值范围为大于或者等于 4的一个区间。 而对于每一 次上行数据的发送过程, N都为该区间内的一个确定的数值。
步骤 305: 按照所述预置的调度策略执行当前上行调度。
需要说明的是, 本申请实施例对预置的调度策略不做具体限定, 可以采用 现有技术中的任何一种调度策略执行当前上行调度。
作为一种可选的方式,在步骤 302中,如果识别出当前上行调度为 PUCCH 调度或 SRS调度, 则直接执行步骤 305 , 即按照所述预置的调度策略执行当前 上行调度。
由上述实施例可以看出,如果相邻两次上行调度前后分别为 PUCCH调度 和 PUSCH调度, 当按照预置的调度策略执行后一个 PUSCH, 系统的误码率 小于预置的误码率最小值时, 即, 系统的解调性能无法满足要求时, 通过减少 后一个 PUSCH的 RB数量或者降低后一个 PUSCH调度的 MCS值,或者两者 结合的方式进行调整,使系统的误码率不小于预置的误码率最小值,从而可以 提高整个系统的解调性能。 实施例三
本实施例与实施例一的区别在于,对系统的误码率是否小于预置的误码率 最小值的判断过程进行了进一步的限定,当通过识别相邻两次上行调度的调度 类型, 而识别出终端相邻两次执行的上行调度都为 PUSCH调度时, 说明终端 的发射功率有可能需要在短时间内产生突变, 例如, 突然上升或突然下降, 如 果终端由于自身性能无法使发射功率实现突变, 会导致上行数据信号发生畸 变, 进而影响系统的解调性能。进而需要判断系统的误码率是否小于预置的误 码率最小值来获知上行数据信号是否发生畸变。
请参阅图 4, 其为本申请一种实现上行数据发送的方法的另一个实施例的 流程图, 包括以下步骤:
步骤 401 : 接收终端发送的当前上行调度请求;
步骤 402: 识别当前上行调度和当前上行调度的前一个调度的调度类型; 步骤 403: 如果当前上行调度为 PUSCH调度, 且当前上行调度的前一个 调度为 PUSCH调度, 当按照预置的调度策略执行当前上行调度时, 判断系统 的误码率是否小于预置的误码率最小值, 如果是, 进入步骤 404, 否则, 进入 步骤 405;
另外, 除了在识别出当前上行调度和当前上行调度的前一个调度都为 PUSCH调度时执行步骤 403的判断动作之外, 还可以在识别出当前上行调度 为 PUSCH调度,当前上行调度的前一个调度为 SRS调度时执行步骤 403的判 断动作。
步骤 404: 减少当前上行调度的 RB数量和 /或降低 MCS值, 使系统的误 码率不小于预置的误码率最小值, 结束流程;
为了避免发射功率的突变对上行数据信号的影响,基站先判断如果按照预 置的调度策略执行当前上行调度, 系统的误码率是否小于预置的误码率最小 值, 如果是, 说明如果按照预置的调度策略执行当前上行调度, 无法满足系统 对解调性能的要求, 因此, 可以减少当前上行调度的 RB数量或者降低 MCS 值, 以此来提高系统的误码率, 使系统的误码率不小于预置的误码率最小值。 或者, 也可以同时减少当前上行调度的 RB数量和减低 MCS值, 最终使系统 的误码率不小于预置的误码率最小值。当系统的误码率提高到不小于预置的误 码率最小值后, 系统的解调性能也就随之提高,从而避免了畸变而带来的解调 性能下降的问题。
可以按照实施例一中步骤 203的方式减少 RB数量或者降低 MCS值, 此 处不再赘述。
需要说明的是, 本申请实施例对误码率最小值的具体数值并不进行限定, 可以根据用户对系统的解调性能的具体要求进行任意设置。例如, 当用户对系 统的解调性能要求较高时, 可以设置一个较高的误码率最小值, 当用户对系统 的解调性能要求较低时, 可以设置一个较低的误码率最小值。
步骤 405: 按照所述预置的调度策略执行当前上行调度, 结束流程。
需要说明的是, 本申请实施例对预置的调度策略不做具体限定, 可以采用
现有技术中的任何一种调度策略执行当前上行调度。
作为一种可选的方式,在步骤 402中,如果识别出当前上行调度为 PUCCH 调度或 SRS调度, 则直接执行步骤 405 , 即按照预置的调度策略执行当前上行 调度。
由上述实施例可以看出,如果当前上行调度和当前上行调度的前一个调度 都为 PUSCH调度, 当按照预置的调度策略执行当前上行调度, 系统的误码率 小于预置的误码率最小值时, 即, 系统的解调性能无法满足要求时, 通过减少 当前上行调度的 RB数量或者降低当前上行调度的 MCS值, 或者两者结合的 方式进行调整,使系统的误码率不小于预置的误码率最小值,从而可以提高整 个系统的解调性能。 实施例四
本实施例与实施例一的区别在于,对系统的误码率是否小于预置的误码率 最小值的判断过程进行了进一步的限定, 当通过识别当前上行调度的调度类 型, 而识别出终端在当前上行调度同时包含 PUSCH调度和 SRS调度时,也就 是说, 当前上行调度既使用 PUSCH调度类型又使用 SRS调度类型,说明终端 的发射功率有可能需要在短时间内产生突变, 例如, 突然上升或突然下降, 如 果终端由于自身性能无法使发射功率实现突变, 会导致上行数据信号发生畸 变, 进而影响系统的解调性能。进而需要判断系统的误码率是否小于预置的误 码率最小值来获知上行数据信号是否发生畸变。 请参阅图 5 , 其为本申请一种 实现上行数据发送的方法的另一个实施例的流程图, 包括以下步骤:
步骤 501 : 接收终端发送的上行调度请求;
步骤 502: 识别当前上行调度的调度类型;
步骤 503: 如果当前上行调度同时包含 PUSCH调度和 SRS调度, 当按照 预置的调度策略执行当前上行调度时,判断系统的误码率是否小于预置的误码 率最小值, 如果是, 进入步骤 504, 否则, 进入步骤 505;
其中, 可以参见实施例一中步骤 202的方式,使基站获得相邻两次上行调 度的类型。 由于在实施例一中已经进行了详细地描述, 故此处不再赘述。
步骤 504: 减少当前上行调度中 PUSCH调度的 RB数量和 /或降低 MCS
值, 使系统的误码率不小于预置的误码率最小值, 结束流程;
为了避免发射功率的突变对上行数据信号的影响,基站先判断如果按照预 置的调度策略执行当前上行调度, 系统的误码率是否小于预置的误码率最小 值, 如果是, 说明如果按照预置的调度策略执行当前上行调度, 无法满足系统 对解调性能的要求, 因此, 可以减少当前上行调度中 PUSCH调度的 RB数量 或者降低 MCS值, 以此来提高系统的误码率, 使系统的误码率不小于预置的 误码率最小值。 或者, 也可以同时减少当前上行调度的 RB数量和减低 MCS 值, 最终使系统的误码率不小于预置的误码率最小值。 当系统的误码率提高到 不小于预置的误码率最小值后, 系统的解调性能也就随之提高,从而避免了畸 变而带来的解调性能下降的问题。
可以按照实施例一中步骤 203的方式减少 RB数量或者降低 MCS值, 此 处不再赘述。
需要说明的是, 本申请实施例对误码率最小值的具体数值并不进行限定, 可以根据用户对系统的解调性能的具体要求进行任意设置。例如, 当用户对系 统的解调性能要求较高时, 可以设置一个较高的误码率最小值, 当用户对系统 的解调性能要求较低时, 可以设置一个较低的误码率最小值。
步骤 505: 按照所述预置的调度策略执行当前上行调度, 结束流程。
需要说明的是, 本申请实施例对预置的调度策略不做具体限定, 可以采用 现有技术中的任何一种调度策略执行当前上行调度。
作为另一种可选的方式, 在步骤 502 中, 如果识别出当前上行调度为
PUCCH调度或 SRS调度, 则直接执行步骤 505 , 即按照预置的调度策略执行 当前上行调度。
由上述实施例可以看出, 如果当前上行调度同时包含 PUSCH调度和 SRS 调度, 当按照预置的调度策略执行当前上行调度时, 系统的误码率小于预置的 误码率最小值时, 即, 系统的解调性能无法满足要求时, 通过减少上行调度中 PUSCH调度的 RB数量或者降低 PUSCH调度的 MCS值, 或者两者结合的方 式进行调整,使系统的误码率不小于预置的误码率最小值,从而可以提高整个 系统的解调性能。
实施例五
本申请实施例还提供了一种与实施例一中的实现上行数据发送的方法相 对应的实现上行数据发送的装置。 请参阅图 6, 其为本申请一种实现上行数据 发送的装置的一个实施例的结构图。 该装置包括: 接收单元 601、 解调性能判 断单元 602和第一时频资源分配单元 603。 下面结合该装置的工作原理进一步 介绍其内部结构以及连接关系。
接收单元 601 , 用于接收终端发送的上行调度请求;
解调性能判断单元 602 , 用于当按照预置的调度策略执行当前上行调度 时, 判断系统的误码率是否小于预置的误码率最小值;
第一时频资源分配单元 603 , 用于当所述解调性能判断单元的判断结果为 是时, 减少当前上行调度的 RB数量和 /或降低 MCS值, 使系统的误码率不小 于预置的误码率最小值, 否则, 按照所述预置的调度策略执行当前上行调度。
优选的, 请参阅图 7 , 其为本申请一个实施例中解调性能判断单元的一个 结构示意图,如图 7所示,解调性能判断单元 602包括: 第一识别子单元 6021 和第一判断子单元 6022, 其中,
第一识别子单元 6021 , 用于识别当前上行调度和当前上行调度的前一个 调度的调度类型;
第一判断子单元 6022 , 用于如果当前上行调度为物理上行共享信道 PUSCH调度, 且当前上行调度的前一个调度为 PUCCH调度, 判断系统的误 码率是否小于预置的误码率最小值。
或者, 在另一种优选的方式中, 解调性能判断单元 602包括: 第一识别子 单元 6021和第二判断子单元 6023 , 请参阅图 8 , 其为本申请另一个实施例中 解调性能判断单元的结构示意图, 其中,
第一识别子单元 6021 , 用于识别当前上行调度和当前上行调度的前一个 调度的调度类型;
第二判断子单元 6023 , 用于如果当前上行调度为 PUSCH调度, 且当前上 行调度的前一个调度为 PUSCH调度, 判断系统的误码率是否小于预置的误码 率最小值。
或者, 在又一种优选的方式中, 解调性能判断单元 602包括: 第一识别子
单元 6021和第三判断子单元 6024, 请参阅图 9, 其为本申请又一个实施例中 解调性能判断单元的结构示意图, 其中,
第一识别子单元 6021 , 用于识别当前上行调度和当前上行调度的前一个 调度的调度类型;
第三判断子单元 6024, 用于如果当前上行调度为 PUSCH调度, 且当前上 行调度的前一个调度为 SRS调度, 判断系统的误码率是否小于预置的误码率 最小值。
除了图 7-9所示的结构外,请参阅图 10,其为本申请一个实施例中解调性 能判断单元的结构示意图, 解调性能判断单元 602包括:
第二识别子单元 6025 , 用于识别当前上行调度的类型;
第四判断子单元 6026, 用于如果当前上行调度同时包含 PUSCH调度和 SRS调度, 判断系统的误码率是否小于预置的误码率最小值,
则第一时频资源分配单元 603 , 用于当所述第四判断子单元的判断结果为 是时, 减少当前上行调度中 PUSCH调度的 RB数量和 /或降低 MCS值, 使系 统的误码率不小于预置的误码率最小值, 否则,按照所述预置的调度策略执行 当前上行调度。
除了图 6所示的结构外, 进一步优选的, 请参阅图 11 , 其为本申请另一 个实施例中实现上行数据发送的装置的结构示意图, 该装置在图 6基础上,还 包括第二时频资源分配单元 604,用于如果当前上行调度为 PUCCH调度或 SRS 调度, 按照所述预置的调度策略执行当前上行调度。
由此可以看出, 其有益效果在于: 当按照预置的调度策略执行当前上行调 度, 系统的误码率小于预置的误码率最小值时, 即, 系统的解调性能无法满足 要求时,通过减少当前上行调度的 RB数量或者降低当前上行调度的 MCS值, 或者两者结合的方式进行调整, 使系统的误码率不小于预置的误码率最小值, 从而可以提高整个系统的解调性能。 需要说明的是,本领域普通技术人员可以理解实现上述实施例方法中的全 部或部分流程,是可以通过计算机程序来指令相关的硬件来完成, 所述的程序 可存储于一计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法
的实施例的流程。 其中, 所述的存储介质可为磁碟、 光盘、 只读存储记忆体 ( Read-Only Memory, ROM )或随机存储记忆体 ( Random Access Memory, RAM )等。
以上对本发明所提供的一种实现上行数据发送的方法和装置进行了详细 实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时,对于本领 域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围上均会有 改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。
Claims
1、 一种实现上行数据发送的方法, 其特征在于, 包括:
接收终端发送的当前上行调度请求;
当按照预置的调度策略执行当前上行调度时,判断系统的误码率是否小于 预置的误码率最小值;
如果是,减少当前上行调度的资源块 RB数量和 /或降低调制编码方式 MCS 权
值, 使系统的误码率不小于预置的误码率最小值, 否则, 按照所述预置的调度 策略执行当前上行调度。 利
1
2、 根据权利要求 1所述的方法, 其 5要特征在于, 所述当按照预置的调度策 略执行当前上行调度时, 判断系统的误码率求是否小于预置的误码率最小值包 括:
识别当前上行调度和当前上行调度的前一个调度的调度类型;
如果当前上行调度为物理上行共享信道 PUSCH调度, 且当前上行调度的 前一个调度为 PUCCH调度,判断系统的误码率是否小于预置的误码率最小值。
3、 根据权利要求 1所述的方法, 其特征在于, 所述当按照预置的调度策 略执行当前上行调度时, 判断系统的误码率是否小于预置的误码率最小值包 括:
识别当前上行调度和当前上行调度的前一个调度的调度类型;
如果当前上行调度为 PUSCH 调度, 且当前上行调度的前一个调度为 PUSCH调度, 判断系统的误码率是否小于预置的误码率最小值。
4、 根据权利要求 1所述的方法, 其特征在于, 所述当按照预置的调度策 略执行当前上行调度时, 判断系统的误码率是否小于预置的误码率最小值包 括:
识别当前上行调度和当前上行调度的前一个调度的调度类型;
如果当前上行调度为 PUSCH调度, 且当前上行调度的前一个调度为 SRS 调度, 判断系统的误码率是否小于预置的误码率最小值。
5、 根据权利要求 1所述的方法, 其特征在于, 所述当按照预置的调度策 略执行当前上行调度时, 判断系统的误码率是否小于预置的误码率最小值包 括: 识别当前上行调度的类型;
如果当前上行调度同时包含 PUSCH调度和 SRS调度,判断系统的误码率 是否小于预置的误码率最小值,
则所述减少当前上行调度的资源块 RB数量和 /或降低调制编码方式 MCS 值为: 减少当前上行调度中 PUSCH调度的 RB数量和 /或 MCS值。
6、 根据权利要求 1-5 中的任意一项所述的方法, 其特征在于, 所述方法 还包括:
如果当前上行调度为 PUCCH调度或 SRS调度时,按照所述预置的调度策 略执行当前上行调度。
7、 一种实现上行数据发送的装置, 其特征在于, 包括:
接收单元, 用于接收终端发送的上行调度请求;
解调性能判断单元, 用于当按照预置的调度策略执行当前上行调度时, 判 断系统的误码率是否小于预置的误码率最小值;
第一时频资源分配单元, 用于当所述解调性能判断单元的判断结果为是 时, 减少当前上行调度的 RB数量和 /或降低 MCS值, 使系统的误码率不小于 预置的误码率最小值, 否则, 按照所述预置的调度策略执行当前上行调度。
8、 根据权利要求 7所述的装置, 其特征在于, 所述解调性能判断单元包 括:
第一识别子单元,用于识别当前上行调度和当前上行调度的前一个调度的 调度类型;
第一判断子单元, 用于如果当前上行调度为物理上行共享信道 PUSCH调 度, 且当前上行调度的前一个调度为 PUCCH调度, 判断系统的误码率是否小 于预置的误码率最小值。
9、 根据权利要求 7所述的装置, 其特征在于, 所述解调性能判断单元包 括:
第一识别子单元,用于识别当前上行调度和当前上行调度的前一个调度的 调度类型;
第二判断子单元, 用于如果当前上行调度为 PUSCH调度, 且当前上行调 度的前一个调度为 PUSCH调度, 判断系统的误码率是否小于预置的误码率最 小值。
10、 根据权利要求 7所述的装置, 其特征在于, 所述解调性能判断单元包 括:
第一识别子单元,用于识别当前上行调度和当前上行调度的前一个调度的 调度类型;
第三判断子单元, 用于如果当前上行调度为 PUSCH调度, 且当前上行调 度的前一个调度为 SRS调度, 判断系统的误码率是否小于预置的误码率最小 值。
11、 根据权利要求 7所述的装置, 其特征在于, 所述解调性能判断单元包 括:
第二识别子单元, 用于识别当前上行调度的类型;
第四判断子单元,用于如果当前上行调度同时包含 PUSCH调度和 SRS调 度, 判断系统的误码率是否小于预置的误码率最小值,
则第一时频资源分配单元,具体用于当所述第四判断子单元的判断结果为 是时, 减少当前上行调度中 PUSCH调度的 RB数量和 /或降低 MCS值, 使系 统的误码率不小于预置的误码率最小值, 否则,按照所述预置的调度策略执行 当前上行调度。
12、 根据权利要求 7-11 中的任意一项所述的装置, 其特征在于, 所述装 置还包括:
第二时频资源分配单元, 用于如果当前上行调度为 PUCCH调度或 SRS 调度, 按照所述预置的调度策略执行当前上行调度。
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CN110476461A (zh) * | 2018-01-19 | 2019-11-19 | Oppo广东移动通信有限公司 | 功率控制的方法、终端设备和网络设备 |
US11498446B2 (en) * | 2020-01-06 | 2022-11-15 | Ford Global Technologies, Llc | Plug-in charge current management for battery model-based online learning |
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WO2017088147A1 (zh) * | 2015-11-26 | 2017-06-01 | 华为技术有限公司 | 实现自适应调制编码的方法和基站 |
CN113381844B (zh) * | 2020-02-25 | 2023-11-14 | 上海诺基亚贝尔股份有限公司 | 配置下行附加解调参考信号的符号数量的方法和装置 |
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CN101754289A (zh) * | 2008-11-28 | 2010-06-23 | 中兴通讯股份有限公司 | 一种适用于多种用户状态的调制编码方式调度方法及系统 |
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CN110476461B (zh) * | 2018-01-19 | 2024-01-30 | Oppo广东移动通信有限公司 | 功率控制的方法、终端设备和网络设备 |
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