CN109803365B - Power control method, device, equipment and computer readable storage medium - Google Patents

Power control method, device, equipment and computer readable storage medium Download PDF

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CN109803365B
CN109803365B CN201711148829.6A CN201711148829A CN109803365B CN 109803365 B CN109803365 B CN 109803365B CN 201711148829 A CN201711148829 A CN 201711148829A CN 109803365 B CN109803365 B CN 109803365B
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power
transmission
service
pssch
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CN109803365A (en
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冯媛
赵锐
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power

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Abstract

The invention provides a power control method, a device, equipment and a computer readable storage medium, relates to the technical field of communication, and aims to ensure the QoS of a high-priority service. The power control method of the present invention includes: determining priority information of a current service to be transmitted; and determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted. The invention can ensure the QoS of the high-priority service.

Description

Power control method, device, equipment and computer readable storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power control method, apparatus, device, and computer readable storage medium.
Background
In the existing spectrum sensing (sensing), the high-low priority determination for the traffic is implemented by using a Reference Signal Receiving Power (RSRP) decision threshold. In this way, elimination of longer distance for high priority users and relatively close distance for low priority users can be realized, thereby indirectly reflecting priority service high priority service. However, in view of the final effect, the difference of high and low priorities cannot be found by RSSI (Received Signal Strength Indication) exclusion and time-frequency resource spatial multiplexing and frequency division multiplexing.
In addition, when the implementation is specifically performed, on the premise of the same MCS (Modulation and Coding Scheme, Modulation and Coding strategy), the difference of SINR (Signal to Interference plus Noise Ratio) requirements of the service may consider whether the service is segmented or not in addition to the difference of PPPP, and for the segmented service, the need of increasing the SINR may be considered. The current sensing procedure only takes into account PPPP differences.
The power control process of the current psch (Physical Sidelink Shared Channel) can be regarded as only being related to the number of PRBs (Physical resource blocks), only using the transmission power as a transmission parameter, and having no specific process, and cannot reflect the difference of services with different priorities.
Disclosure of Invention
In view of the above, the present invention provides a power control method, apparatus, device and computer readable storage medium for guaranteeing Quality of Service (QoS) of high priority traffic.
To solve the foregoing technical problem, in a first aspect, an embodiment of the present invention provides a power control method, including:
determining priority information of a current service to be transmitted;
and determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted.
When the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scene, determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
And calculating the sending power of the current service to be transmitted by using the expected receiving power according to the following formula:
Figure BDA0001473052160000021
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
When the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scene, determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
setting power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and calculating the transmission power of the current service to be transmitted by utilizing the power spectral density.
The sending power of the current service to be transmitted is calculated according to the following formula:
Figure BDA0001473052160000031
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the physical Sidelink control channel PSCCH relative to the physical Sidelink shared channel PSSCH carrying the service to be transmitted; PL denotes the estimated link path loss.
When the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted;
the determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
acquiring preset total transmission power;
determining the sending power of the first service to be transmitted;
and determining the transmission power for the second service to be transmitted in the residual transmission power, wherein the residual transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted.
Wherein, before determining the transmission power for the second service to be transmitted in the remaining transmission power, the method further includes:
determining whether the residual transmission power meets the transmission requirement of the second service to be transmitted;
when the residual transmission power does not meet the transmission requirement of the second service to be transmitted, not transmitting the second service to be transmitted;
determining, in the remaining transmit power, transmit power for the second to-be-transmitted service, including:
and when the residual sending power meets the sending requirement of the second service to be transmitted, determining the sending power for the second service to be transmitted in the residual sending power.
Wherein the determining the transmission power of the first service to be transmitted includes:
setting expected received power corresponding to the first service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the first service to be transmitted;
and calculating the sending power of the first service to be transmitted by utilizing the expected receiving power.
Calculating the transmission power of the first service to be transmitted by using the expected received power according to the following formula, including:
Figure BDA0001473052160000041
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
Wherein the determining the transmission power of the first service to be transmitted includes:
setting a power spectral density corresponding to the first service to be transmitted, wherein the value of the power spectral density is increased with the increase of the priority of the first service to be transmitted;
and calculating the transmission power of the first service to be transmitted by utilizing the power spectral density.
Wherein, the sending power of the first service to be transmitted is calculated according to the following formula:
Figure BDA0001473052160000042
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the physical Sidelink control channel PSCCH relative to the physical Sidelink shared channel PSSCH carrying the service to be transmitted; PL denotes the estimated link path loss.
When the method is applied to an out-of-coverage transmission mode4 scene, determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
determining the power spectrum density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectrum density is increased along with the increase of the priority of the current service to be transmitted;
and determining the transmission power of the current service to be transmitted according to the power spectral density.
When the method is applied to a transmission mode3 and an out-of-coverage transmission mode4 in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted;
the determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
determining a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted respectively, wherein the first power spectral density is greater than the second power spectral density;
and determining the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted according to the first power spectral density and the second power spectral density respectively.
In a second aspect, an embodiment of the present invention provides a power control apparatus, including:
the first determining module is used for determining the priority information of the current service to be transmitted;
and the second determining module is used for determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted.
Wherein the second determining module comprises:
the first setting submodule is used for setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and the first calculation submodule is used for calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
Wherein the second determining module comprises:
the second setting submodule is used for setting the power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and the second calculation submodule is used for calculating the sending power of the current service to be transmitted by utilizing the power spectral density.
The current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the second determining module includes:
the obtaining submodule is used for obtaining preset total transmitting power;
a first determining submodule, configured to determine a transmission power of the first service to be transmitted;
and a second determining submodule, configured to determine, in remaining transmit power, transmit power for the second to-be-transmitted service, where the remaining transmit power is equal to the total transmit power minus the transmit power of the first to-be-transmitted service.
Wherein the second determining module comprises:
a third determining submodule, configured to determine a power spectral density of the current service to be transmitted according to the priority information of the current service to be transmitted, where the power spectral density increases with an increase in priority of the current service to be transmitted;
and the fourth determining submodule is used for determining the sending power of the current service to be transmitted according to the power spectral density.
The current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the second determining module includes:
a fifth determining submodule, configured to determine a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted, respectively, where the first power spectral density is greater than the second power spectral density;
and a sixth determining submodule, configured to determine, according to the first power spectral density and the second power spectral density, the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted, respectively.
In a third aspect, an embodiment of the present invention provides a power control apparatus, including: a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor is used for reading the program in the memory and executing the following processes:
determining priority information of a current service to be transmitted;
and determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted.
When the method is applied to a transmission mode3 in a single carrier scene and a transmission mode4 in coverage, the processor is further configured to read a program in the memory, and execute the following processes:
setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
calculating the transmission power of the current service to be transmitted by using the expected received power according to the following formula:
Figure BDA0001473052160000071
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
When the method is applied to a transmission mode3 in a single carrier scene and a transmission mode4 in coverage, the processor is further configured to read a program in the memory, and execute the following processes:
setting power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and calculating the transmission power of the current service to be transmitted by utilizing the power spectral density.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
calculating the transmission power of the current service to be transmitted by using the power spectral density according to the following formula:
Figure BDA0001473052160000072
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents PSCCH is offset relative to the power spectral density of the PSSCH carrying the traffic to be transmitted.
When the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the processor is also used for reading the program in the memory and executing the following processes:
acquiring preset total transmission power;
determining the sending power of the first service to be transmitted;
and determining the transmission power for the second service to be transmitted in the residual transmission power, wherein the residual transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
determining whether the residual transmission power meets the transmission requirement of the second service to be transmitted;
when the residual transmission power does not meet the transmission requirement of the second service to be transmitted, not transmitting the second service to be transmitted;
and when the residual sending power meets the sending requirement of the second service to be transmitted, determining the sending power for the second service to be transmitted in the residual sending power.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
setting expected received power corresponding to the first service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the first service to be transmitted;
and calculating the sending power of the first service to be transmitted by utilizing the expected receiving power.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
calculating the transmission power of the first to-be-transmitted service by using the expected received power according to the following formula, including:
Figure BDA0001473052160000081
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
setting a power spectral density corresponding to the first service to be transmitted, wherein the value of the power spectral density is increased with the increase of the priority of the first service to be transmitted;
and calculating the transmission power of the first service to be transmitted by utilizing the power spectral density.
Wherein the processor is further configured to read the program in the memory and execute the following processes:
calculating the transmission power of the first traffic to be transmitted by using the power spectral density according to the following formula:
Figure BDA0001473052160000091
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n denotes physical Sidelink controlThe power spectral density of a channel PSCCH is deviated relative to a physical Sidelink shared channel PSSCH which carries the first service to be transmitted; PL denotes the estimated link path loss.
Wherein, when applied to an out-of-coverage transmission mode4 scenario, the processor is further configured to read a program in the memory and perform the following:
determining the power spectrum density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectrum density is increased along with the increase of the priority of the current service to be transmitted;
and determining the transmission power of the current service to be transmitted according to the power spectral density.
When the method is applied to a transmission mode3 and an out-of-coverage transmission mode4 in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the processor is also used for reading the program in the memory and executing the following processes:
determining a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted respectively, wherein the first power spectral density is greater than the second power spectral density;
and determining the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted according to the first power spectral density and the second power spectral density respectively.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing a computer program, which when executed by a processor implements the steps in the method according to the first aspect.
The technical scheme of the invention has the following beneficial effects:
in the embodiment of the invention, the sending power of the current service to be transmitted can be determined according to the priority information of the current service to be transmitted, so that the QoS of the high-priority service can be ensured.
Drawings
FIG. 1 is a flow chart of a power control method according to an embodiment of the present invention;
FIG. 2 is a diagram of a power control apparatus according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a power control apparatus according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, a power control method according to an embodiment of the present invention includes:
step 101, determining priority information of a current service to be transmitted.
The current service to be transmitted may refer to a service currently being processed. Different services may have different priority information, and then the priority information of the different services may be preset. For example, a voice call service may be set to have a higher priority, a short message service may be set to have a lower priority, and so on.
And step 102, determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted.
In the embodiment of the invention, the sending power of the current service to be transmitted can be determined by combining different application scenes and the priority information of the current service to be transmitted.
Scenario one, transmission Mode 3(Mode 3) in single carrier scenario, and transmission Mode 4(Mode 4) in overlay
(1) In this scenario, it may be based on that the current pending transmission services with different priorities have different expected received powers, and it is reflected that the current pending transmission services with different priorities may have different transmission powers. In other cases where the network conditions are the same, the higher the priority, the higher the desired received power, and the higher the corresponding transmit power. The terminal side may be notified by means of parameter configuration, and a high expected received power value is set for a high priority, for example, a gain of 1dB is added for the high priority.
In a specific application, the expected received power corresponding to the current service to be transmitted may be set first, and then the sending power of the current service to be transmitted may be calculated by using the expected received power.
Specifically, the transmission power of the current service to be transmitted is calculated by using the expected received power according to the following formula:
Figure BDA0001473052160000111
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
In the above formula, for mode3 or in-coverage mode4 (whether or not CBR (constant Bit Rate) control is turned on), it is possible to pass the desired received power PO_PSSCH,3Or PO_PSSCH,4Reflecting the difference of the priority of different services.
(2) In this scenario, it may be based on that the current pending transmission services with different priorities have different power spectral densities, which shows that the current pending transmission services with different priorities may have different transmission powers. Under the same other network conditions, the higher the priority, the higher the power spectral density, and the higher the corresponding transmit power.
In a specific application, the power spectral density corresponding to the current service to be transmitted may be set first, and then the transmission power of the current service to be transmitted is calculated by using the power spectral density.
Specifically, the sending power of the current service to be transmitted is calculated according to the following formula:
Figure BDA0001473052160000121
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the PSCCH relative to the psch carrying the traffic to be transmitted; PL denotes the estimated link path loss.
Scenario two, transmission Mode 3(Mode 3) and transmission Mode 4(Mode 4) in coverage in carrier aggregation scenario
In this scenario, it is assumed that the current service to be transmitted includes a first service to be transmitted and a second service to be transmitted, where a priority of the first service to be transmitted is higher than a priority of the second service to be transmitted.
Then, in this step, a preset total transmission power may be obtained first, and then the transmission power of the first to-be-transmitted service may be determined. And determining whether the residual sending power meets the sending requirement of the second service to be transmitted or not in the residual sending power. When the residual transmission power meets the transmission requirement of the second service to be transmitted, determining the transmission power for the second service to be transmitted; otherwise, the second service to be transmitted may not be transmitted. Wherein the remaining transmit power is equal to the total transmit power minus the transmit power of the first to-be-transmitted traffic.
In a specific application, in CA (Carrier Aggregation), when a subframe needs to carry both high-priority traffic and low-priority traffic during one transmission, power allocation of each Carrier is as follows:
and preferentially distributing power resources for the carrier carrying the high-priority service. The calculation method of the transmission power requirements of the in-coverage mode4 and the mode3 can be determined according to the calculation method in the prior art. And calculating the residual power resources, and allocating the residual power resources to the carrier carrying the low-priority service or judging whether the residual power resources can meet the sending requirement of the carrier carrying the low-priority service. If the requirement is met, sending; and if the demand is not met, not allocating.
In this scenario, the power requirements for the high-priority and low-priority services may be implemented according to the existing protocol, or may be implemented in a calculation manner according to scenario one.
Specifically, in this scenario, if an expected received power of a first service to be transmitted is considered, an expected received power corresponding to the first service to be transmitted may be set, where a value of the expected received power increases with an increase in priority of the first service to be transmitted, and the expected received power is used to calculate the transmit power of the first service to be transmitted. Specifically, the transmit power of the first service to be transmitted is calculated according to the following formula:
Figure BDA0001473052160000131
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
Specifically, in this scenario, if a power spectral density of a first service to be transmitted is considered, a power spectral density corresponding to the first service to be transmitted may be set, where a value of the power spectral density increases with an increase in priority of the first service to be transmitted, and the power spectral density is used to calculate the transmission power of the first service to be transmitted.
Specifically, the transmit power of the first service to be transmitted is calculated according to the following formula:
Figure BDA0001473052160000132
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents a power spectral density offset of the PSCCH relative to the psch carrying the first traffic to be transmitted; PL denotes the estimated link path loss.
Scene three, out-of-coverage transmission Mode 4(Mode 4)
Under the scene, determining the power spectral density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectral density is increased along with the increase of the priority of the current service to be transmitted. And then, determining the transmission power of the current service to be transmitted according to the power spectral density.
For example, assuming that full power transmission is considered in this scenario, and the currently set SA (scheduling assignment) has a gain of 3dB with respect to data (data), in practical applications, traffic of different priorities and different PSD values of SA can be considered, and then power assignments of SA and data when full power transmission is used can be calculated.
For example, the following settings of table 1 may be employed:
Figure BDA0001473052160000141
TABLE 1
When the SA indicates low priority traffic, the SA has a gain of 3dB compared with the data; when SA indicates high priority traffic, SA has only a gain of 2dB compared to data.
Scenario four, transmission Mode 3(Mode 3) in carrier aggregation scenario, and out-of-coverage transmission Mode 4(Mode 4)
In this scenario, it is assumed that the current service to be transmitted includes a first service to be transmitted and a second service to be transmitted, where a priority of the first service to be transmitted is higher than a priority of the second service to be transmitted.
Specifically, a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted are determined according to the priority of the first service to be transmitted and the priority of the second service to be transmitted, respectively, where the first power spectral density is greater than the second power spectral density, and then the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted are determined according to the first power spectral density and the second power spectral density, respectively.
Specifically, taking the manner of calculating the transmit power of the first to-be-transmitted service as an example, the method may calculate according to the following formula:
Figure BDA0001473052160000151
wherein, PPSSCH,1Indicating the transmission power, M, of the first traffic to be transmittedPSSCH,lIndicating the transmission bandwidth, M, of the PSSCH carrying the first traffic to be transmittedPSSCH,2Indicating the transmission bandwidth, M, of the PSSCH carrying the second traffic to be transmittedPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n is1Indicating a power spectral density offset of a PSSCH carrying the second traffic to be transmitted relative to a PSSCH carrying the first traffic to be transmitted; n is2Indicating a power spectral density offset of the PSCCH relative to the PSCCH carrying the first traffic to be transmitted and PL indicating an estimated link path loss.
The principle of the calculation mode of the transmission power of the second service to be transmitted is the same.
For the determined resources and bearers (the traffic with the determined priority is carried on the determined resources), under CA, when a transmission is performed once and the subframe needs to carry both high-priority traffic and low-priority traffic, power allocation of each carrier can be determined according to power spectral density.
For example, PSD of different priority services can be determined according to the mapping relationship shown in table 2 below, and the transmission power values on the SA and the resources carrying different data can be determined.
Figure BDA0001473052160000152
TABLE 2
As can be seen from the above description, in the embodiment of the present invention, the sending power of the current service to be transmitted can be determined according to the priority information of the current service to be transmitted, so that the QoS of the high-priority service can be ensured.
In practical applications, different application scenarios are also possible.
For example, when applied in a single carrier in-coverage scenario, high priority traffic has higher transmit power and low priority traffic has lower transmit power when determining transmit power. The specific implementation method may refer to the description of scenario one above.
For another example, when applied in a single carrier out-of-coverage scenario, high priority traffic has higher transmit power and low priority traffic has lower transmit power when determining transmit power. The specific implementation method may refer to the description of the third scenario above.
For another example, under CA, a service transmitted once (at the same time point) has both high priority and low priority (different service packets are multiplexed together and a resource is selected to be transmitted together), and power is preferentially allocated to the high priority. When the method is applied to the coverage, the specific implementation method can refer to the description of the second scenario; when the method is applied to out-of-coverage, the specific implementation method may refer to the description of the above scenario three.
For another example, in CA, a service transmitted at one time (at the same time point) has both high priority and low priority (different service packets trigger different resource selection time points, only the same subframe is selected), and the power values of the high priority and the low priority are different. When the method is applied to the coverage, the specific implementation method can refer to the description of the second scenario; when the method is applied to out-of-coverage, the specific implementation method may refer to the description of the above scenario three.
For another example, in CA, services with different priorities are transmitted at different times. For a large packet segment, a scene of multiple carriers is occupied, and the total power transmitted in or out of coverage can be divided equally according to a maximum protocol, with PRB (physical resource block) as a unit, and PSD between SA and data is considered.
For another example, under CA, high and low priority traffic is transmitted at different times. For large packet segmentation, a scenario of multiple carriers is occupied. The total power, if within coverage, can be calculated as in scenario 1 above, and then each carrier splits the power equally in units of PRBs while taking into account the PSD between SA and DATA.
In the embodiment of the present invention, if the service is not prioritized, the PSD offset (power spectrum offset) of the PSCCH with respect to the PSCCH is a fixed value of 3 dB. Assuming that service priorities are distinguished, assuming that PSD offset of PSCCH relative to PSSCH carrying high priority service is 3dB, PSSCH carrying high priority service is 1Db relative to PSSCH carrying low priority service, then in single carrier scene, if high priority service is sent, PSCCH has power spectrum offset value of 3 relative to PSSCH carrying high priority service; if the low priority service is transmitted, the power spectrum offset of the PSCCH relative to the PSSCH carrying the low priority service is 4.
By utilizing the scheme of the embodiment of the invention, the optimization of the existing sending process can be realized. By means of high-priority high power spectral density and low-priority low power spectral density, the following effects are exerted on the sending process:
and (3) resource exclusion: the same received RSRP (Reference Signal Receiving Power), a high priority being equivalent to considering more distant excluded; low priority equivalence excludes relatively low distance;
resource selection: when the RSSI (Received Signal Strength Indication) is sorted, the difference of high and low priorities is also considered;
time-frequency domain collision: from the SINR perspective, assuming that all resources occupy the same size, the power density spectrum varies when different powers are used. Thus, whether "partial resource overlapping collision/interference or full resource overlapping collision/interference occurs, for one user, collision/interference is equally small for a low priority user and interference is large for a high priority user. The receiving power is large, the interference is small and the equivalent SINR is large equivalent to that of a high-priority user; the low-priority user has small receiving power, large interference and small equivalent SINR;
frequency domain near-far effect: the method is equivalent to improving the power of the high-priority service and improving the decoding rate of the high-priority service.
As shown in fig. 2, the power control apparatus according to the embodiment of the present invention includes:
a first determining module 201, configured to determine priority information of a current service to be transmitted; a second determining module 202, configured to determine, according to the priority information of the current service to be transmitted, the sending power of the current service to be transmitted.
When applied to transmission mode3 in a single carrier scenario and transmission mode4 in coverage, the second determining module 202 includes: the first setting submodule is used for setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted; and the first calculation submodule is used for calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
Specifically, the transmission power of the current service to be transmitted is calculated by using the expected received power according to the following formula:
Figure BDA0001473052160000181
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
Alternatively, in this scenario, the second determining module 202 includes: the second setting submodule is used for setting the power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted; and the second calculation submodule is used for calculating the sending power of the current service to be transmitted by utilizing the power spectral density.
Specifically, the power spectral density is used to calculate the transmission power of the current service to be transmitted according to the following formula:
Figure BDA0001473052160000182
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the PSCCH relative to the psch carrying the traffic to be transmitted; PL denotes the estimated link path loss.
When the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the second determining module 202 includes:
the obtaining submodule is used for obtaining preset total transmitting power; a first determining submodule, configured to determine a transmission power of the first service to be transmitted; and a second determining submodule, configured to determine, in remaining transmit power, transmit power for the second to-be-transmitted service, where the remaining transmit power is equal to the total transmit power minus the transmit power of the first to-be-transmitted service.
In this case, the first determination submodule may be further operable to: and determining whether the residual sending power meets the sending requirement of the second service to be transmitted, and when the residual sending power does not meet the sending requirement of the second service to be transmitted, not transmitting the second service to be transmitted. The second determining submodule is specifically configured to determine, in the remaining transmit power, transmit power for the second service to be transmitted when the remaining transmit power meets a transmission requirement of the second service to be transmitted.
In this case, the first determining submodule is specifically configured to, when determining the transmission power of the first service to be transmitted, set an expected received power corresponding to the first service to be transmitted, where a value of the expected received power increases with an increase in priority of the first service to be transmitted, and calculate the transmission power of the first service to be transmitted by using the expected received power.
Specifically, calculating the transmission power of the first to-be-transmitted service by using the expected received power according to the following formula includes:
Figure BDA0001473052160000191
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
In this case, the first determining submodule, when determining the transmission power of the first service to be transmitted, is specifically configured to set a power spectral density corresponding to the first service to be transmitted, where a value of the power spectral density increases with an increase in priority of the first service to be transmitted, and the transmission power of the first service to be transmitted is calculated by using the power spectral density.
Calculating the transmission power of the first traffic to be transmitted by using the power spectral density according to the following formula:
Figure BDA0001473052160000201
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents a power spectral density offset of the PSCCH relative to the psch carrying the first traffic to be transmitted; PL denotes the estimated link path loss.
When applied to an out-of-coverage transmission mode4 scenario, the second determining module 202 comprises: a third determining submodule, configured to determine a power spectral density of the current service to be transmitted according to the priority information of the current service to be transmitted, where the power spectral density increases with an increase in priority of the current service to be transmitted; and the fourth determining submodule is used for determining the sending power of the current service to be transmitted according to the power spectral density.
When the method is applied to a transmission mode3 and an out-of-coverage transmission mode4 in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than the priority of the second service to be transmitted; the second determining module 202 includes:
a fifth determining submodule, configured to determine a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted, respectively, where the first power spectral density is greater than the second power spectral density; and a sixth determining submodule, configured to determine, according to the first power spectral density and the second power spectral density, the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted, respectively.
The working principle of the device according to the invention can be referred to the description of the method embodiment described above.
In the embodiment of the invention, the sending power of the current service to be transmitted can be determined according to the priority information of the current service to be transmitted, so that the QoS of the high-priority service can be ensured.
As shown in fig. 3, the power control apparatus of the embodiment of the present invention includes: a processor 300 for reading the program in the memory 320, and executing the following processes:
determining priority information of a current service to be transmitted; determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted;
a transceiver 310 for receiving and transmitting data under the control of the processor 300;
where in fig. 3, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 300 and memory represented by memory 320. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 310 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.
The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.
The processor 300 is further adapted to read the computer program and perform the following steps:
when the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scene, setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted; and calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
The processor 300 is further configured to read the computer program, and calculate the transmission power of the current service to be transmitted by using the expected received power according to the following formula:
Figure BDA0001473052160000211
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
The processor 300 is further adapted to read the computer program and perform the following steps:
when the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scene, setting the power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted; and calculating the transmission power of the current service to be transmitted by utilizing the power spectral density.
The processor 300 is further configured to read the computer program, and calculate the transmission power of the current traffic to be transmitted by using the power spectral density according to the following formula:
Figure BDA0001473052160000221
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the PSCCH relative to the psch carrying the traffic to be transmitted; PL denotes the estimated link path loss.
The processor 300 is further adapted to read the computer program and perform the following steps:
when the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; acquiring preset total transmission power; determining the sending power of the first service to be transmitted; and determining the transmission power for the second service to be transmitted in the residual transmission power, wherein the residual transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted.
The processor 300 is further adapted to read the computer program and perform the following steps:
determining whether the residual transmission power meets the transmission requirement of the second service to be transmitted;
when the residual transmission power does not meet the transmission requirement of the second service to be transmitted, not transmitting the second service to be transmitted;
and when the residual sending power meets the sending requirement of the second service to be transmitted, determining the sending power for the second service to be transmitted in the residual sending power.
The processor 300 is further adapted to read the computer program and perform the following steps:
setting expected received power corresponding to the first service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the first service to be transmitted;
and calculating the sending power of the first service to be transmitted by utilizing the expected receiving power.
The processor 300 is further configured to read the computer program, and calculate the transmission power of the first traffic to be transmitted by using the expected received power according to the following formula, including:
Figure BDA0001473052160000231
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
The processor 300 is further adapted to read the computer program and perform the following steps:
setting a power spectral density corresponding to the first service to be transmitted, wherein the value of the power spectral density is increased with the increase of the priority of the first service to be transmitted;
and calculating the transmission power of the first service to be transmitted by utilizing the power spectral density.
The processor 300 is further configured to read the computer program, and calculate the transmit power of the first traffic to be transmitted using the power spectral density according to the following formula:
Figure BDA0001473052160000232
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents a power spectral density offset of the PSCCH relative to the psch carrying the first traffic to be transmitted; PL denotes the estimated link path loss.
The processor 300 is further adapted to read the computer program and perform the following steps:
when the method is applied to an out-of-coverage transmission mode4 scene, determining the power spectral density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectral density is increased along with the increase of the priority of the current service to be transmitted; and determining the transmission power of the current service to be transmitted according to the power spectral density.
The processor 300 is further adapted to read the computer program and perform the following steps:
when the method is applied to a transmission mode3 and an out-of-coverage transmission mode4 in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than the priority of the second service to be transmitted; determining a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted respectively, wherein the first power spectral density is greater than the second power spectral density; and determining the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted according to the first power spectral density and the second power spectral density respectively.
Furthermore, a computer-readable storage medium of an embodiment of the present invention stores a computer program executable by a processor to implement:
determining priority information of a current service to be transmitted;
and determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted.
When the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scene, determining the transmission power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
And calculating the sending power of the current service to be transmitted by using the expected receiving power according to the following formula:
Figure BDA0001473052160000241
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
When the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scene, determining the transmission power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
setting power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and calculating the transmission power of the current service to be transmitted by utilizing the power spectral density.
And calculating the transmission power of the current service to be transmitted by using the power spectral density according to the following formula:
Figure BDA0001473052160000251
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the PSCCH relative to the psch carrying the traffic to be transmitted; PL denotes the estimated link path loss.
When the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted;
the determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
acquiring preset total transmission power;
determining the sending power of the first service to be transmitted;
and determining the transmission power for the second service to be transmitted in the residual transmission power, wherein the residual transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted.
Wherein, before determining the transmission power for the second service to be transmitted in the remaining transmission power, the method further includes:
determining whether the residual transmission power meets the transmission requirement of the second service to be transmitted;
when the residual transmission power does not meet the transmission requirement of the second service to be transmitted, not transmitting the second service to be transmitted;
determining, in the remaining transmit power, transmit power for the second to-be-transmitted service, including:
and when the residual sending power meets the sending requirement of the second service to be transmitted, determining the sending power for the second service to be transmitted in the residual sending power.
Wherein the determining the transmission power of the first service to be transmitted includes:
setting expected received power corresponding to the first service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the first service to be transmitted;
and calculating the sending power of the first service to be transmitted by utilizing the expected receiving power.
Calculating the transmission power of the first service to be transmitted by using the expected received power according to the following formula, including:
Figure BDA0001473052160000261
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
Wherein the determining the transmission power of the first service to be transmitted includes:
setting a power spectral density corresponding to the first service to be transmitted, wherein the value of the power spectral density is increased with the increase of the priority of the first service to be transmitted;
and calculating the transmission power of the first service to be transmitted by utilizing the power spectral density.
Wherein, the power spectral density is utilized to calculate the transmission power of the first service to be transmitted according to the following formula:
Figure BDA0001473052160000271
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents a power spectral density offset of the PSCCH relative to the psch carrying the first traffic to be transmitted; PL denotes the estimated link path loss.
When the method is applied to an out-of-coverage transmission mode4 scenario, determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
determining the power spectrum density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectrum density is increased along with the increase of the priority of the current service to be transmitted;
and determining the transmission power of the current service to be transmitted according to the power spectral density.
When the method is applied to a transmission mode3 and an out-of-coverage transmission mode4 in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted;
the determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
determining a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted respectively, wherein the first power spectral density is greater than the second power spectral density;
and determining the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted according to the first power spectral density and the second power spectral density respectively.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (26)

1. A method of power control, comprising:
determining priority information of a current service to be transmitted;
determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted;
when the method is applied to a transmission mode3 and a transmission mode4 in coverage under a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted;
the determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
acquiring preset total transmission power;
determining the sending power of the first service to be transmitted;
determining the transmission power for the second service to be transmitted in the residual transmission power, wherein the residual transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted;
wherein the determining the transmission power of the first service to be transmitted includes:
setting expected received power corresponding to the first service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the first service to be transmitted; calculating the sending power of the first service to be transmitted by utilizing the expected receiving power; or
The determining the transmission power of the first service to be transmitted includes:
setting a power spectral density corresponding to the first service to be transmitted, wherein the value of the power spectral density is increased with the increase of the priority of the first service to be transmitted; and calculating the transmission power of the first service to be transmitted by utilizing the power spectral density.
2. The method according to claim 1, wherein when the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scenario, the determining the transmission power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
3. The method of claim 2, wherein the expected received power is used to calculate the transmission power of the current traffic to be transmitted according to the following formula:
Figure FDA0002984654350000021
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
4. The method according to claim 1, wherein when the method is applied to a transmission mode3 and a transmission mode4 in a single carrier scenario, the determining the transmission power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
setting power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and calculating the transmission power of the current service to be transmitted by utilizing the power spectral density.
5. The method of claim 4, wherein the transmission power of the current traffic to be transmitted is calculated according to the following formula:
Figure FDA0002984654350000022
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the physical Sidelink control channel PSCCH relative to the physical Sidelink shared channel PSSCH carrying the service to be transmitted; PL denotes the estimated link path loss.
6. The method of claim 1, wherein before determining the transmit power for the second traffic to be transmitted in the remaining transmit power, the method further comprises:
determining whether the residual transmission power meets the transmission requirement of the second service to be transmitted;
when the residual transmission power does not meet the transmission requirement of the second service to be transmitted, not transmitting the second service to be transmitted;
determining, in the remaining transmit power, transmit power for the second to-be-transmitted service, including:
and when the residual sending power meets the sending requirement of the second service to be transmitted, determining the sending power for the second service to be transmitted in the residual sending power.
7. The method of claim 1, wherein calculating the transmit power of the first traffic to be transmitted using the expected receive power according to the following formula comprises:
Figure FDA0002984654350000031
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
8. The method of claim 1, wherein the transmit power of the first traffic to be transmitted is calculated according to the following formula:
Figure FDA0002984654350000032
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the physical Sidelink control channel PSCCH relative to the physical Sidelink shared channel PSSCH carrying the first service to be transmitted; PL denotes the estimated link path loss.
9. The method according to claim 1, wherein when the method is applied to an out-of-coverage transmission mode4 scenario, the determining the transmission power of the current service to be transmitted according to the priority information of the current service to be transmitted comprises:
determining the power spectrum density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectrum density is increased along with the increase of the priority of the current service to be transmitted;
and determining the transmission power of the current service to be transmitted according to the power spectral density.
10. The method according to claim 1, wherein when the method is applied to transmission mode3 and out-of-coverage transmission mode4 in a carrier aggregation scenario, the current traffic to be transmitted includes a first traffic to be transmitted and a second traffic to be transmitted, wherein the priority of the first traffic to be transmitted is higher than the priority of the second traffic to be transmitted;
the determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted includes:
determining a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted respectively, wherein the first power spectral density is greater than the second power spectral density;
and determining the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted according to the first power spectral density and the second power spectral density respectively.
11. A power control apparatus, comprising:
the first determining module is used for determining the priority information of the current service to be transmitted;
the second determining module is used for determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted;
when the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the second determining module includes:
the obtaining submodule is used for obtaining preset total transmitting power;
a first determining submodule, configured to determine a transmission power of the first service to be transmitted;
a second determining submodule, configured to determine, in remaining transmit power, transmit power for the second to-be-transmitted service, where the remaining transmit power is equal to the total transmit power minus the transmit power of the first to-be-transmitted service;
the first determining submodule is specifically configured to set an expected received power corresponding to the first service to be transmitted when determining the transmit power of the first service to be transmitted, where a value of the expected received power increases with an increase in priority of the first service to be transmitted, and the transmit power of the first service to be transmitted is calculated using the expected received power;
the first determining submodule is specifically configured to set a power spectral density corresponding to the first service to be transmitted when determining the transmission power of the first service to be transmitted, where a value of the power spectral density increases with an increase in priority of the first service to be transmitted, and the transmission power of the first service to be transmitted is calculated by using the power spectral density.
12. The apparatus of claim 11, wherein the second determining module, when applied to transmission mode3 in a single carrier scenario and transmission mode4 in coverage, comprises:
the first setting submodule is used for setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and the first calculation submodule is used for calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
13. The apparatus of claim 11, wherein the second determining module, when applied to transmission mode3 in a single carrier scenario and transmission mode4 in coverage, comprises:
the second setting submodule is used for setting the power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and the second calculation submodule is used for calculating the sending power of the current service to be transmitted by utilizing the power spectral density.
14. The apparatus of claim 11, wherein the second determining module, when applied to an out-of-coverage transmission mode4 scenario, comprises:
a third determining submodule, configured to determine a power spectral density of the current service to be transmitted according to the priority information of the current service to be transmitted, where the power spectral density increases with an increase in priority of the current service to be transmitted;
and the fourth determining submodule is used for determining the sending power of the current service to be transmitted according to the power spectral density.
15. The apparatus according to claim 11, wherein when applied to transmission mode3 and out-of-coverage transmission mode4 in a carrier aggregation scenario, the current traffic to be transmitted includes a first traffic to be transmitted and a second traffic to be transmitted, where a priority of the first traffic to be transmitted is higher than a priority of the second traffic to be transmitted; the second determining module includes:
a fifth determining submodule, configured to determine a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted, respectively, where the first power spectral density is greater than the second power spectral density;
and a sixth determining submodule, configured to determine, according to the first power spectral density and the second power spectral density, the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted, respectively.
16. A power control apparatus comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory and execute the following processes:
determining priority information of a current service to be transmitted;
determining the sending power of the current service to be transmitted according to the priority information of the current service to be transmitted;
when the method is applied to a transmission mode3 and a transmission mode4 in coverage in a carrier aggregation scene, the current service to be transmitted comprises a first service to be transmitted and a second service to be transmitted, wherein the priority of the first service to be transmitted is higher than that of the second service to be transmitted; the processor is also used for reading the program in the memory and executing the following processes:
acquiring preset total transmission power;
determining the sending power of the first service to be transmitted;
determining the transmission power for the second service to be transmitted in the residual transmission power, wherein the residual transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted;
the processor is also used for reading the program in the memory and executing the following processes:
setting expected received power corresponding to the first service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the first service to be transmitted; calculating the sending power of the first service to be transmitted by utilizing the expected receiving power;
the processor is also used for reading the program in the memory and executing the following processes:
setting a power spectral density corresponding to the first service to be transmitted, wherein the value of the power spectral density is increased with the increase of the priority of the first service to be transmitted; and calculating the transmission power of the first service to be transmitted by utilizing the power spectral density.
17. The apparatus of claim 16, wherein the processor is further configured to read a program in the memory when applied to transmission mode3 in a single carrier scenario and transmission mode4 in coverage to perform the following:
setting expected received power corresponding to the current service to be transmitted, wherein the value of the expected received power is increased along with the increase of the priority of the current service to be transmitted;
and calculating the sending power of the current service to be transmitted by utilizing the expected receiving power.
18. The apparatus of claim 17, wherein the processor is further configured to read a program in the memory and perform the following:
calculating the transmission power of the current service to be transmitted by using the expected received power according to the following formula:
Figure FDA0002984654350000071
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; PL denotes the estimated link path loss.
19. The apparatus of claim 16, wherein the processor is further configured to read a program in the memory when applied to transmission mode3 in a single carrier scenario and transmission mode4 in coverage to perform the following:
setting power spectral density corresponding to the current service to be transmitted, wherein the value of the power spectral density is increased along with the increase of the priority of the current service to be transmitted;
and calculating the transmission power of the current service to be transmitted by utilizing the power spectral density.
20. The apparatus of claim 19, wherein the processor is further configured to read a program in the memory and perform the following:
calculating the transmission power of the current service to be transmitted by using the power spectral density according to the following formula:
Figure FDA0002984654350000081
wherein, PPSSCHIndicating the transmission power of the current traffic to be transmitted, MPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicating transmission mode3 or transmission modeDesired received power at 4, αPSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the physical Sidelink control channel PSCCH relative to the physical Sidelink shared channel PSSCH carrying the service to be transmitted; PL denotes the estimated link path loss.
21. The apparatus of claim 16, wherein the processor is further configured to read a program in the memory and perform the following:
determining whether the residual transmission power meets the transmission requirement of the second service to be transmitted;
when the residual transmission power does not meet the transmission requirement of the second service to be transmitted, not transmitting the second service to be transmitted;
and when the residual sending power meets the sending requirement of the second service to be transmitted, determining the sending power for the second service to be transmitted in the residual sending power.
22. The apparatus of claim 16, wherein the processor is further configured to read a program in the memory and perform the following:
calculating the transmission power of the first to-be-transmitted service by using the expected received power according to the following formula, including:
Figure FDA0002984654350000082
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCHIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCHRepresents the higher layer parameters in transmission mode3 or transmission mode 4; PL denotes the estimated link path loss.
23. The apparatus of claim 16, wherein the processor is further configured to read a program in the memory and perform the following:
calculating the transmission power of the first traffic to be transmitted by using the power spectral density according to the following formula:
Figure FDA0002984654350000091
wherein, PPSSCHIndicating the transmission power, M, of the first traffic to be transmittedPSSCHIndicating the transmission bandwidth of the PSSCH, MPSCCHIndicating the transmission bandwidth, P, of the PSCCHCMAXRepresenting the maximum transmit power, P, allowed for the UEO_PSSCH,iIndicates the expected received power, α, in transmission mode3 or transmission mode4PSSCH,iRepresents a higher layer parameter in transmission mode3 or transmission mode4, i is 3 or 4; n represents the power spectral density offset of the physical Sidelink control channel PSCCH relative to the physical Sidelink shared channel PSSCH carrying the first service to be transmitted; PL denotes the estimated link path loss.
24. The apparatus of claim 16, wherein the processor is further configured to read a program in the memory when applied to an out-of-coverage transmission mode4 scenario to perform the following:
determining the power spectrum density of the current service to be transmitted according to the priority information of the current service to be transmitted, wherein the power spectrum density is increased along with the increase of the priority of the current service to be transmitted;
and determining the transmission power of the current service to be transmitted according to the power spectral density.
25. The apparatus according to claim 16, wherein when applied to transmission mode3 and out-of-coverage transmission mode4 in a carrier aggregation scenario, the current traffic to be transmitted comprises a first traffic to be transmitted and a second traffic to be transmitted, wherein a priority of the first traffic to be transmitted is higher than a priority of the second traffic to be transmitted; the processor is also used for reading the program in the memory and executing the following processes:
determining a first power spectral density of the first service to be transmitted and a second power spectral density of the second service to be transmitted according to the priority of the first service to be transmitted and the priority of the second service to be transmitted respectively, wherein the first power spectral density is greater than the second power spectral density;
and determining the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted according to the first power spectral density and the second power spectral density respectively.
26. A computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the steps in the method according to any one of claims 1 to 10.
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