TWI772538B - A power control method, device and computer readable storage medium - Google Patents

Abstract

The present invention provides a power control method, a device and a computer-readable storage medium, belonging to the technical field of communications. The power control method of the present invention includes: determining the priority order information of the current service to be transmitted; according to the priority order of the current service to be transmitted information to determine the transmit power of the current service to be transmitted.

Description

A power control method, device and computer-readable storage medium

The present invention belongs to the technical field of communication, and in particular, relates to a power control method, a device and a computer-readable storage medium.

In the existing spectrum sensing (sensing), the high and low priority order of services is judged by the reference signal receiving power (Reference Signal Receiving Power, RSRP) decision threshold. In this way, it can be realized that users with high priority order consider more The exclusion of long distances considers the exclusion of relatively close distances for low-priority users, thus indirectly reflecting the priority service of high-priority services; however, from the final effect, through the received signal strength indication (Received Signal Strength Indication, RSSI) exclusion and time-frequency resource space multiplexing and frequency division multiplexing do not reflect the difference in priority order.

In addition, in the specific implementation, under the premise of the same Modulation and Coding Scheme (MCS), the difference in demand for the Signal to Interference plus Noise Ratio (SINR) of the service is in addition to the difference in the priority order (PPPP) In addition, you can also consider whether the service is segmented. For segmented services, you can consider increasing its SINR requirements. The current sensing process only considers PPPP differences.

In the related art, the Physical Sidelink Shared Channel (Physical Sidelink Shared Channel) The power control process of Channel, PSSCH) can be regarded as only related to the number of physical resource blocks (Physical Resource Block, PRB), but the transmission power is used as a transmission parameter, and there is no specific process, which cannot reflect the difference of services in different priority orders. .

In view of this, the present invention provides a power control method, an apparatus and a computer-readable storage medium for ensuring the Quality of Service (QoS) of high-priority services.

In order to solve the above technical problems, in a first aspect, an embodiment of the present invention provides a power control method, including: determining priority order information of a service to be transmitted currently; transmit power.

Wherein, when the power control method is applied to the transmission mode 3 in the single-carrier scenario and the transmission mode 4 within the coverage, determining the transmission power of the currently to-be-transmitted service according to the priority order information of the currently to-be-transmitted service, including : set the expected received power corresponding to the current service to be transmitted, wherein, as the priority of the current service to be transmitted increases, the value of the expected received power increases; using the expected received power, calculate the current value of the received service to be transmitted. transmit power.

Wherein, according to the following formula, the expected received power is used to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmission power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of the Physical Sidelink Control Channel (PSSCH), M _PSCCH represents the transmission bandwidth of the PSCCH, and P _CMAX represents the terminal (User Equipment Equipment). , UE) allowable maximum transmit power, P _{O_PSSCH,i} represents the expected received power in transmission mode 3 or transmission mode 4, α _PSSCH,i represents the high layer parameter in transmission mode 3 or transmission mode 4, i=3 or 4; PL represents the estimated link path loss.

Wherein, when the power control method is applied to the transmission mode 3 in the single-carrier scenario and the transmission mode 4 within the coverage, determining the transmission power of the currently to-be-transmitted service according to the priority order information of the currently to-be-transmitted service, including : set the power spectral density corresponding to the current service to be transmitted, wherein, as the priority of the current service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, calculate the power spectral density of the current service to be transmitted transmit power.

Wherein, according to the following formula, calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or The expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the physical bypass control channel PSCCH relative to the physical bypass carrying the service to be transmitted. The power spectral density offset of the shared channel PSSCH; PL represents the estimated link path loss.

Wherein, when the method is applied to the transmission mode 3 in the carrier aggregation scenario and the transmission mode 4 within the coverage, the currently to-be-transmitted service includes a first to-be-transmitted service and a second to-be-transmitted service, wherein the first to-be-transmitted service is The priority order is higher than the priority order of the second to-be-transmitted service; the determining the transmission power of the currently to-be-transmitted service according to the priority order information of the current to-be-transmitted service includes: obtaining a preset total transmission power; determining the first The transmit power of the service to be transmitted; in the remaining transmit power, the transmit power is determined for the second service to be transmitted, wherein the residual transmit power is equal to the total transmit power minus the transmit power of the first service to be transmitted.

Wherein, in the remaining transmission power, before determining the transmission power for the second service to be transmitted, the power control method further includes: determining whether the remaining transmission power meets the transmission requirement of the second service to be transmitted; When the power does not meet the transmission requirement of the second service to be transmitted, the second service to be transmitted is not transmitted; the remaining transmission power, determining the transmission power for the second service to be transmitted includes: when the remaining transmission power satisfies the transmission power When the transmission demand of the second service to be transmitted is required, the transmission power is determined for the second service to be transmitted in the remaining transmission power.

Wherein, the determining the transmission power of the first service to be transmitted includes: Setting the expected received power corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the value of the expected received power increases; using the expected received power, calculate the first to be transmitted The transmit power of the service.

Wherein, according to the following formula, the expected received power is used to calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss.

The determining the transmit power of the first service to be transmitted includes: setting a power spectral density corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the power spectral density The value of , increases; using the power spectral density, the transmit power of the first service to be transmitted is calculated.

The transmit power of the first service to be transmitted is calculated according to the following formula:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the physical bypass control channel PSCCH relative to the physical bypass control channel carrying the service to be transmitted. The power spectral density offset of the bypass shared channel PSSCH; PL represents the estimated link path loss.

Wherein, when the method is applied to the out-of-coverage transmission mode 4 scenario, determining the transmission power of the currently to-be-transmitted service according to the priority order information of the current to-be-transmitted service includes: according to the current to-be-transmitted service priority order information, determine the power spectral density of the current service to be transmitted, wherein, as the priority of the current service to be transmitted increases, the power spectral density increases; according to the power spectral density, determine the transmission power of the current service to be transmitted .

Wherein, when the method is applied to the transmission mode 3 in the carrier aggregation scenario and the out-of-coverage transmission mode 4, the current service to be transmitted includes a first service to be transmitted and a second service to be transmitted, wherein the first service to be transmitted is The priority order is higher than the priority order of the second to-be-transmitted service; the determining the transmission power of the current to-be-transmitted service according to the priority order information of the current to-be-transmitted service includes: respectively according to the priority order of the first to-be-transmitted service and the priority order of the second service to be transmitted, determine the first power spectral density of the first service to be transmitted and the second power spectral density of the second service to be transmitted, wherein the first power spectral density is greater than the second power spectral density spectral density; determining the transmit power of the first service to be transmitted and the transmit 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 device, including: a first determination module for determining priority order information of services currently to be transmitted; a second determination module for determining priority information according to the current services to be transmitted Sequence information to determine the transmit power of the current service to be transmitted.

Wherein, the second determination module includes: a first setting sub-module for setting the expected received power corresponding to the currently to-be-transmitted service, wherein, as the priority of the current to-be-transmitted service increases, the expected received power The value of increases; the first calculation sub-module is configured to use the expected received power to calculate the transmit power of the current service to be transmitted.

Wherein, the second determination module includes: a second setting sub-module for setting the power spectral density corresponding to the currently to-be-transmitted service, wherein, as the priority of the current to-be-transmitted service increases, the power spectral density The value of , increases; the second calculation sub-module is used to calculate the transmission power of the current service to be transmitted by using the power spectral density.

Wherein, the current service to be transmitted includes 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 determination module includes: Obtaining a sub-module is used to obtain the preset total transmission power; the first determining sub-module is used to determine the transmission power of the first service to be transmitted; the second determining sub-module is used to determine the remaining transmission power A transmit power is determined for the second service to be transmitted, wherein the remaining transmit power is equal to the total transmit power minus the transmit power of the first service to be transmitted.

Wherein, the second determination module includes: a third determination sub-module, used for determining the power spectral density of the currently to-be-transmitted service according to the priority order information of the current to-be-transmitted service, wherein, with the current to-be-transmitted service The higher the priority order, the higher the power spectral density; the fourth determination sub-module is configured to determine, according to the power spectral density, the transmission power of the current service to be transmitted.

Wherein, the current service to be transmitted includes 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 determination module includes: The fifth determination sub-module is used to determine the first power spectral density of the first service to be transmitted and the second power spectral density of the second service to be transmitted according to the priority order of the first service to be transmitted and the priority order of the second service to be transmitted. the second power spectral density of the service, wherein the first power spectral density is greater than the second power spectral density; the sixth determination sub-module is configured to determine the first power spectral density according to the first power spectral density and the second power spectral density respectively The transmit power of a service to be transmitted and the transmit power of the second service to be transmitted.

In a third aspect, an embodiment of the present invention provides a power control device, including: a memory, a processor, and a computer program stored on the memory and running on the processor; the processor is used to read the data in the memory The program executes the following processes: determining the priority order information of the current service to be transmitted; determining the transmission power of the current service to be transmitted according to the priority order information of the current service to be transmitted.

Among them, when applied to the transmission mode 3 in the single-carrier scenario and the transmission within the coverage In transmission mode 4, the processor is also used to read the program in the memory, and perform the following process: setting the expected received power corresponding to the current service to be transmitted, wherein, with the increase of the priority of the current service to be transmitted, The value of the expected received power increases; using the expected received power, the transmit power of the current service to be transmitted is calculated.

Wherein, the processor is also used to read the program in the memory, and perform the following process: According to the following formula, use the expected received power to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or The expected received power in transmission mode 4, α _PSSCH,i represents the high layer parameter in transmission mode 3 or transmission mode 4, i=3 or 4; PL represents the estimated link path loss.

Wherein, when applied to the transmission mode 3 under the single-carrier scenario and the transmission mode 4 within the coverage, the processor is also used to read the program in the memory, and perform the following process: set the power spectrum corresponding to the current service to be transmitted density, wherein, as the priority of the current service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, the transmit power of the current service to be transmitted is calculated.

Wherein, the processor is also used to read the program in the memory, and perform the following process: According to the following formula, use the power spectral density to calculate the transmission power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or Expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectral density offset of PSCCH relative to the PSSCH carrying the service to be transmitted .

Wherein, when applied to the transmission mode 3 in the carrier aggregation scenario and the transmission mode 4 within the coverage, the current service to be transmitted includes a first service to be transmitted and a second service to be transmitted, and the priority order of the first service to be transmitted higher than the priority order of the second service to be transmitted; the processor is further configured to read the program in the memory, and perform the following processes: obtain the preset total transmission power; determine the transmission power of the first service to be transmitted; In the remaining transmission power, the transmission power is determined for the second service to be transmitted, wherein the remaining 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 perform the following process: determine whether the remaining transmission power meets the transmission requirement of the second service to be transmitted; When the remaining sending power does not meet the sending requirement of the second service to be transmitted, the second service to be transmitted is not transmitted; when the remaining sending power meets the sending requirement of the second service to be transmitted, in the remaining sending power, A transmit power is determined for the second service to be transmitted.

Wherein, the processor is further configured to read the program in the memory, and perform the following process: setting the expected received power corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the The value of the expected received power is increased; using the expected received power, the transmit power of the first service to be transmitted is calculated.

Wherein, the processor is also used to read the program in the memory, and execute the following process: according to the following formula, use the expected received power to calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss.

Among them, the processor is also used to read the program in the memory, and perform the following processes: Setting the power spectral density corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, calculate the first to be transmitted The transmit power of the service.

Wherein, the processor is also used to read the program in the memory, and perform the following process: According to the following formula, use the power spectral density to calculate the transmission power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the physical Sidelink control channel PSCCH relative to the first service to be transmitted. The power spectral density offset of the physical Sidelink shared channel PSSCH; PL represents the estimated link path loss.

Wherein, when applied to the out-of-coverage transmission mode 4 scenario, the processor is also used to read the program in the memory, and perform the following process: according to the priority order information of the current service to be transmitted, determine the current service to be transmitted. The power spectral density, wherein the power spectral density increases as the priority of the current service to be transmitted increases; according to the power spectral density, the transmit power of the current service to be transmitted is determined.

Wherein, when applied to the transmission mode 3 in the carrier aggregation scenario and the out-of-coverage transmission mode 4, the currently to-be-transmitted service includes a first to-be-transmitted service and a second to-be-transmitted service, wherein the priority of the first to-be-transmitted service higher than the priority of the second service to be transmitted; the processor is further configured to read the program in the memory, and perform the following processes: respectively according to the priority of the first service to be transmitted and the priority of the second service to be transmitted sequence, determine the first power spectral density of the first service to be transmitted and the second power spectral density of the second service to be transmitted, wherein the first power spectral density is greater than the second power spectral density; respectively according to the first power The spectral density and the second power spectral density are used to determine the transmit power of the first service to be transmitted and the transmit power of the second service to be transmitted.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing a computer program, and when the computer program is executed by a processor, the steps in the method of the first aspect are implemented.

The beneficial effects of the above-mentioned technical solutions of the present invention are as follows:

In the embodiment of the present invention, the transmission power of the currently to-be-transmitted service can be determined according to the priority order information of the currently to-be-transmitted service, thereby ensuring the QoS of the high-priority service.

101~102‧‧‧Steps

201‧‧‧First confirmed module

202‧‧‧Second confirmation module

300‧‧‧Processors

310‧‧‧Transceiver

320‧‧‧Memory

FIG. 1 is a flowchart of a power control method according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a power control apparatus according to an embodiment of the present invention; and FIG. 3 is a schematic diagram of a power control device according to an embodiment of the present invention.

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples; the following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

As shown in FIG. 1 , the power control method according to the embodiment of the present invention includes: Step 101: Determine priority order information of services to be transmitted currently; With different priority order information, the priority order information of different services can be preset, for example, it can be set that the voice call service has a higher priority order, and the short message service has a lower priority order, etc.; Step 102, according to the current waiting The priority order information of the transmission service determines the transmission power of the current service to be transmitted.

In the embodiment of the present invention, the transmission power of the current service to be transmitted may be determined in combination with different application scenarios and priority order information of the current service to be transmitted.

Scenario 1, transmission mode 3 (Mode 3) in the single-carrier scenario and transmission mode 4 (Mode 4) within the coverage:

(1) In this scenario, the current services to be transmitted with different priorities can have different expected received powers, which shows that the current services to be transmitted with different priorities can have different transmit powers; under other network conditions In the same case, the higher the priority, the higher the expected received power, and the higher the corresponding transmit power; among them, the terminal side can be notified by means of parameter configuration, and a high expected received power value is set for a high priority, such as for High priority increases gain by 1dB, etc.

In a specific application, the desired connection corresponding to the current service to be transmitted can be set first. receive power, and then use the expected receive power to calculate the transmit power of the current service to be transmitted.

Specifically, according to the following formula, the expected receive power is used to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or The expected received power in transmission mode 4, α _PSSCH,i represents the high layer parameter in transmission mode 3 or transmission mode 4, i=3 or 4; PL represents the estimated link path loss.

In the above formula, for mode3 or mode4 within the coverage (regardless of whether the constant bit rate (CBR) control is turned on), the expected received power P _{O_PSSCH,3} or P _{O_PSSCH,4} can reflect the priority of different services Sequential differences.

(2) In this scenario, the current services to be transmitted in different priorities can have different power spectral densities as the basis, which shows that the current services to be transmitted in different priorities can have different transmit powers. Under other network conditions In the same situation, 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 can be set first, and then the power spectral density can be used to calculate the transmit power of the current service to be transmitted; specifically, according to the following formula, the Transmit power:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or Expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectral density offset of PSCCH relative to the PSSCH carrying the service to be transmitted ; PL represents the estimated link path loss.

Scenario 2, transmission mode 3 (Mode 3) in carrier aggregation scenario and transmission mode 4 (Mode 4) within coverage:

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, wherein the priority of the first service to be transmitted is higher than the priority of the second service to be transmitted.

Then, in this step, the preset total transmission power may be obtained first, and then the transmission power of the first service to be transmitted may be determined, and in the remaining transmission power, it may be determined whether the remaining transmission power satisfies the transmission of the second service to be transmitted. demand; when the remaining transmission power meets the transmission requirement of the second service to be transmitted, determine the transmission power for the second service to be transmitted; otherwise, the second service to be transmitted may not be transmitted, wherein the remaining transmission power is equal to the total transmission power Subtract the transmit power of the first service to be transmitted.

In a specific application, under Carrier Aggregation (CA), when sending once, the subframe needs to carry both high-priority services and low-priority services. During service, the power distribution of each carrier is as follows:

Priority is given to allocating power resources to carriers carrying high-priority services, wherein the calculation methods of transmission power requirements of mode 4 and mode 3 within the coverage can be determined according to the calculation methods in the prior art; the remaining power resources are calculated, and the remaining power resources are configured Give the carrier carrying the low-priority service or determine whether the remaining power resources can meet the transmission requirements of the carrier carrying the low-priority service.

In this scenario, the power requirements for high-low priority services can be implemented according to the existing protocol, or can be implemented according to the calculation method of scenario 1.

Specifically, in this scenario, if the expected received power of the first service to be transmitted is considered, the expected received power corresponding to the first service to be transmitted can be set, wherein as the priority of the first service to be transmitted increases , the value of the expected received power increases, 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:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss.

Specifically, in this scenario, if the power spectral density of the first service to be transmitted is considered, here, the power spectral density corresponding to the first service to be transmitted can be set. As the priority of the transmission service increases, the value of the power spectral density increases, and the transmission power of the first service to be transmitted is calculated by using the power spectral density.

Specifically, the transmit power of the first service to be transmitted is calculated according to the following formula:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectrum of PSCCH relative to the PSSCH carrying the first service to be transmitted Density offset; PL represents the estimated link path loss.

Scenario 3. Transmission mode 4 outside the coverage (Mode 4):

In this scenario, the power spectral density of the currently to-be-transmitted service is determined according to the priority order information of the currently to-be-transmitted service, wherein the power spectral density increases as the priority of the current to-be-transmitted service increases; Then, according to the power spectral density, the transmit power of the service to be transmitted currently is determined.

For example, assuming that full power transmission is considered in this scenario, the currently set scheduling allocation (SA) has a gain of 3dB relative to the data (data), then, in practical applications, it can be considered that services with different priorities are different from SA. Power Spectral Density (PSD), and then calculate the power distribution of SA and data when using full power transmission.

For example, the following settings in Table 1 can be used:

When SA indicates a low-priority service, SA has a 3dB gain compared to data; when SA indicates a high-priority service, SA has only a 2dB gain compared to data.

Scenario 4. Transmission mode 3 (Mode 3) in carrier aggregation scenario and transmission mode 4 (Mode 4) outside coverage:

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, wherein the priority of the first service to be transmitted is higher than the priority of the second service to be transmitted.

Specifically, according to the priority order of the first service to be transmitted and the priority order of the second service to be transmitted, the first power spectral density of the first service to be transmitted and the second power spectrum of the second service to be transmitted are determined. density, where the first power spectral density is greater than the second power spectral density, and then determine the transmit power of the first service to be transmitted and the second service to be transmitted according to the first power spectral density and the second power spectral density, respectively transmission power.

其中，P _PSSCH,1表示第一待傳輸業務的發送功率，M _PSSCH,1表示承載第一待傳輸業務的PSSCH的傳輸頻寬，M _PSSCH,2表示承載第二待傳輸業務的PSSCH的傳輸頻寬，M _PSCCH表示PSCCH的傳輸頻寬，P _CMAX表示UE允許的最大發射功率，P _{O_PSSCH,i}表示傳輸模式3或者傳輸模式4下的期望接收功率，α _PSSCH,i 表示傳輸模式3或者傳輸模式4下的高層參數，i=3或4；n1表示承載該第二待傳輸業務的PSSCH相對於承載該第一待傳輸業務的PSSCH的功率譜密度偏移；n2表示PSCCH相對於承載該第一待傳輸業務的PSSCH的功率譜密度偏移，PL表示估計的鏈路路徑損耗；其中，第二待傳輸業務的發送功率的計算方式原理相同。 Specifically, taking the calculation method of the transmission power of the first service to be transmitted as an example, it can be calculated according to the following formula:

Among them, P _PSSCH,1 represents the transmission power of the first service to be transmitted, M _PSSCH,1 represents the transmission bandwidth of the PSSCH carrying the first service to be transmitted, and M _PSSCH,2 represents the transmission frequency of the PSSCH carrying the second service to be transmitted width, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, P _{O_PSSCH,i} represents the expected received power in transmission mode 3 or transmission mode 4, α _PSSCH,i represents transmission mode 3 or transmission mode The high-level parameter under 4, i=3 or 4; n1 represents the power spectral density offset of the PSSCH carrying the second service to be transmitted relative to the PSSCH carrying the first service to be transmitted; n2 represents the PSCCH relative to the PSSCH carrying the first service to be transmitted. The power spectral density offset of the PSSCH of the service to be transmitted, PL represents the estimated link path loss; wherein, the calculation method of the transmit power of the second service to be transmitted is the same.

For the determined resources and bearers (the services with the determined priority order are carried on the determined resources), under carrier aggregation (Carrier Aggregation, CA), when a transmission is performed, the subframe needs to carry both high-priority services and low-priority services. In the case of sequential services, the power allocation of each carrier can be determined according to the power spectral density.

For example, the PSD of services with different priorities can be determined according to the mapping relationship in Table 2 below, and the transmission power values of each SA and resources bearing different data can be determined;

It can be seen from the above description that, in this embodiment of the present invention, the transmit power of the currently to-be-transmitted service can be determined according to the priority order information of the currently-to-be-transmitted service, thereby ensuring the QoS of the high-priority service.

In practical applications, there may be other different application scenarios;

For example, when applied in a single-carrier coverage scenario, when determining the transmit power, the high-priority service has higher transmit power, and the low-priority service has lower transmit power. For the specific implementation method, please refer to the description of the above scenario 1. .

For another example, when applied in a scenario outside the coverage of a single carrier, when determining the transmission power, the high-priority service has higher transmission power, and the low-priority service has lower transmission power. For the specific implementation method, please refer to the above scenario 3. describe.

For another example, under CA, the services sent at one time (at the same time point) have both high priority and low priority (different service packets are multiplexed together to select a resource to be sent together), and power is preferentially allocated to the high priority order; When it is applied in the coverage, the specific implementation method can refer to the description of the above-mentioned scenario 2; when it is applied to outside the coverage, the specific implementation method can refer to the description of the above-mentioned scenario 3.

For another example, under CA, the services sent at one time (at the same time point) have both high priority and low priority (different service packages have different time points for triggering resource selection, but the same subframe is selected), And the high and low priority power values are different, when applied to the coverage , the specific implementation method may refer to the description of the above-mentioned scenario 2; when it is applied outside the coverage, the specific implementation method may refer to the description of the above-mentioned scenario 3.

For another example, under CA, services with different priorities are sent at different times. For a scenario where a large packet is segmented and occupies multiple carriers, the total transmitted power can be based on the maximum protocol, whether within or outside the coverage, and each carrier uses PRB as the The unit bisects the power, taking into account the PSD between SA and data.

For another example, under CA, high- and low-priority services are sent at different times; for large packet segmentation, multiple carriers are occupied; within coverage, the total power can be calculated according to the above scenario 1, and then each carrier is divided equally in PRB units. power, while considering the PSD between SA and data.

In the embodiment of the present invention, if the priority order of services is not distinguished, the power spectrum offset (PSD offset) of PSCCH relative to PSSCH is a fixed value of 3dB; assuming that the priority order of services is distinguished, it is assumed that PSCCH is relatively The PSD offset of PSSCH is 3dB, and the PSD offset of PSSCH carrying high-priority services relative to PSSCH carrying low-priority services is 1dB. In a single-carrier scenario, if high-priority services are sent, PSCCH is relatively high-priority relative to carrying low-priority services. The power spectrum offset of the PSSCH of the sequential service is 3; if the low-priority service is sent, the power spectrum offset of the PSCCH relative to the PSSCH carrying the low-priority service is 4.

By using the solution of the embodiment of the present invention, the optimization of the existing sensing process can be realized; by means of high priority and high power spectral density, and low priority and low power spectral density, the sensing process is affected as follows: Resource exclusion: the same received RSRP , high priority is equivalent to considering excluding further distances ; Low priority equivalently excludes relatively low distances; Resource selection: When sorting RSSI, the difference between high and low priorities is also considered; Time-frequency domain collision: From the perspective of SINR, it is assumed that they all occupy the same size The power density spectrum is different if different powers are used; in this way, whether it is collision/interference with overlapping of some resources or collision/interference with overlapping of all resources, for a user, the collision/interference of low-priority users The equivalent interference should be small, and the high-priority users will interfere more with it; the equivalent high-priority users will have large receiving power and low interference, and the equivalent SINR will be large; the low-priority users will have low receiving power and large interference. , the equivalent SINR should be small; the frequency domain far-near effect: equivalent to increasing the power of high-priority services and improving the decoding rate of high-priority services.

As shown in FIG. 2 , the power control apparatus according to the embodiment of the present invention includes: a first determination module 201 for determining priority order information of a service to be transmitted currently; a second determination module 202 for determining according to the current service to be transmitted The priority order information to determine the transmit power of the current service to be transmitted.

Wherein, when applied to the transmission mode 3 in the single-carrier scenario and the transmission mode 4 within the coverage, the second determination module 202 includes: a first setting sub-module for setting the expected reception corresponding to the current service to be transmitted power, wherein, as the priority of the current service to be transmitted increases, the value of the expected received power increases; the first calculation element module is used to use the expected received power to calculate the transmission of the current service to be transmitted power.

Specifically, according to the following formula, the expected receive power is used to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or The expected received power in transmission mode 4, α _PSSCH,i represents the high layer parameter in transmission mode 3 or transmission mode 4, i=3 or 4; PL represents the estimated link path loss.

Or, in this scenario, the second determination module 202 includes: a second setting sub-module for setting the power spectral density corresponding to the current service to be transmitted, wherein, as the priority of the current service to be transmitted increases If the value is high, the value of the power spectral density is increased; the second computing element module is used to calculate the transmit power of the current service to be transmitted by using the power spectral density.

Specifically, according to the following formula, the power spectral density is used to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or Expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectral density offset of PSCCH relative to the PSSCH carrying the service to be transmitted ; PL represents the estimated link path loss.

When applied to transmission mode 3 in the carrier aggregation scenario and transmission mode 4 within the coverage, the current service to be transmitted includes 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 first service to be transmitted The priority order of the second service to be transmitted; the second determination module 202 includes: an acquisition sub-module for acquiring a preset total transmit power; a first determination sub-module for determining the first service to be transmitted The second determination sub-module is used to determine the transmission power for the second service to be transmitted in the remaining transmission power, wherein the remaining transmission power is equal to the total transmission power minus the transmission of the first service to be transmitted. power.

In this case, the first determination sub-module can also be used to: determine whether the remaining transmission power meets the transmission requirement of the second service to be transmitted, and when the remaining transmission power does not meet the transmission requirement of the second service to be transmitted , do not transmit the second service to be transmitted; the second determination sub-module is specifically used for, when the remaining transmission power meets the transmission requirement of the second service to be transmitted, in the remaining transmission power, the second to-be-transmitted service is The service determines the transmit power.

In this case, when determining the transmit power of the first service to be transmitted, the first determination sub-module is specifically configured to set the expected receive power corresponding to the first service to be transmitted, wherein, along with the transmission power of the first service to be transmitted As the priority order increases, the value of the expected received power increases, and by using the expected received power, the transmit power of the first service to be transmitted is calculated.

Specifically, according to the following formula, the expected received power is used to calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss.

In this case, the first determination sub-module is specifically configured to set the power spectral density corresponding to the first service to be transmitted when determining the transmission power of the first service to be transmitted, wherein, with the transmission power of the first service to be transmitted As the priority order increases, the value of the power spectral density increases, and the transmit power of the first service to be transmitted is calculated by using the power spectral density.

According to the following formula, using the power spectral density, calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectrum of PSCCH relative to the PSSCH carrying the first service to be transmitted Density offset; PL represents the estimated link path loss.

When applied to the out-of-coverage transmission mode 4 scenario, the second determination module 202 includes: a third determination sub-module for determining the power spectrum of the currently to-be-transmitted service according to the priority order information of the currently to-be-transmitted service density, wherein the power spectral density increases as the priority of the current service to be transmitted increases; the fourth determination sub-module is used to determine the transmit power of the current service to be transmitted according to the power spectral density.

When applied to transmission mode 3 and out-of-coverage transmission mode 4 in a carrier aggregation scenario, the current service to be transmitted includes 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 first service to be transmitted The priority order of the second service to be transmitted; the second determination module 202 includes: a fifth determination sub-module, which is used for respectively according to the priority order of the first service to be transmitted and the priority order of the second service to be transmitted, Determine the first power spectral density of the first service to be transmitted and the second power spectral density of the second service to be transmitted, wherein the first power spectral density is greater than the second power spectral density; sixthly determine the submodule, using and determining the transmit power of the first service to be transmitted and the transmit power of the second service to be transmitted according to the first power spectral density and the second power spectral density, respectively.

For the working principle of the device of the present invention, reference may be made to the description of the foregoing method embodiments; In the embodiment of the present invention, the transmission power of the currently to-be-transmitted service can be determined according to the priority order information of the currently to-be-transmitted service, thereby ensuring the QoS of the high-priority service.

As shown in FIG. 3 , the power control device according to the embodiment of the present invention includes: a processor 300 for reading a program in a memory 320 and performing the following processes: determining priority order information of services currently to be transmitted; The priority order information of the service, to determine the transmission power of the current service to be transmitted; The transceiver 310 is used to receive and transmit data under the control of the processor 300; wherein, in FIG. 3, the bus architecture may include any number of interconnected buses and bridges, specifically one or more A processor and various circuits of the memory represented by memory 320 are linked together; the bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are is well known in the art and, therefore, will not be described further herein; the bus interface provides the interface, and the transceiver 310 may be a plurality of elements, ie, including a transmitter and a transceiver, provided for communication with various other devices over a transmission medium A unit of communication, the processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 can store data used by the processor 300 when 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 when performing operations.

The processor 300 is also used to read the computer program, and perform the following steps: when applied to the transmission mode 3 under the single-carrier scenario and the transmission mode 4 within the coverage, set the expected reception power corresponding to the current service to be transmitted, wherein, As the priority of the current service to be transmitted increases, the value of the expected received power increases; using the expected received power, the transmit power of the current service to be transmitted is calculated.

The processor 300 is further configured to read the computer program, and use the expected received power to calculate the transmit power of the current service to be transmitted according to the following formula:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or The expected received power in transmission mode 4, α _PSSCH,i represents the high layer parameter in transmission mode 3 or transmission mode 4, i=3 or 4; PL represents the estimated link path loss.

The processor 300 is also used to read the computer program, and perform the following steps: when applied to the transmission mode 3 under the single-carrier scenario and the transmission mode 4 within the coverage, set the power spectral density corresponding to the current service to be transmitted, wherein, As the priority of the current service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, the transmit power of the current service to be transmitted is calculated.

The processor 300 is further configured to read the computer program, and use the power spectral density to calculate the transmit power of the current service to be transmitted according to the following formula:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or Expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectral density offset of PSCCH relative to the PSSCH carrying the service to be transmitted ; PL represents the estimated link path loss.

The processor 300 is further configured to read the computer program, and perform the following steps: when applied to the transmission mode 3 in the carrier aggregation scenario and the transmission mode 4 in the coverage, The currently to-be-transmitted service includes a first to-be-transmitted service and a second to-be-transmitted service, wherein the priority of the first to-be-transmitted service is higher than the priority of the second to-be-transmitted service; obtaining a preset total transmit power; determining the The transmission power of the first service to be transmitted; in the remaining transmission power, the transmission power is determined for the second service to be transmitted, wherein the remaining 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 configured to read the computer program, and perform the following steps: determine whether the remaining transmission power meets the transmission requirements of the second service to be transmitted; when the remaining transmission power does not meet the transmission requirements of the second service to be transmitted , do not transmit the second service to be transmitted; when the remaining transmission power meets the transmission requirement of the second service to be transmitted, in the remaining transmission power, determine the transmission power for the second service to be transmitted.

The processor 300 is further configured to read the computer program, and perform the following steps: setting the expected received power corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the expected received power The value increases; using the expected received power, calculate the transmit power of the first service to be transmitted.

The processor 300 is further configured to read the computer program, and use the expected received power to calculate the transmit power of the first service to be transmitted according to the following formula:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss.

The processor 300 is further configured to read the computer program, and perform the following steps: setting the power spectral density corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the power spectral density of the first service to be transmitted increases. value increases; using the power spectral density, calculate the transmit power of the first service to be transmitted.

The processor 300 is further configured to read the computer program, and use the power spectral density to calculate the transmit power of the first service to be transmitted according to the following formula:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectrum of PSCCH relative to the PSSCH carrying the first service to be transmitted Density offset; PL represents the estimated link path loss.

The processor 300 is further configured to read the computer program, and perform the following steps: when applied to the out-of-coverage transmission mode 4 scenario, determine the power spectral density of the current service to be transmitted according to the priority order information of the current service to be transmitted, Wherein, as the priority of the current service to be transmitted increases, the power spectral density increases; according to the power spectral density, the transmit power of the current service to be transmitted is determined.

The processor 300 is further configured to read the computer program and perform the following steps: when applied to the transmission mode 3 under the carrier aggregation scenario and the transmission mode 4 outside the coverage, the current service to be transmitted includes the first service to be transmitted and the second service to be transmitted. The 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; according to the priority of the first service to be transmitted and the priority of the second service to be transmitted, determine the The first power spectral density of the first service to be transmitted and the second power spectral density of the second service to be transmitted, wherein the first power spectral density is greater than the second power spectral density; respectively according to the first power spectral density and the second power spectral density Second, the power spectral density is used to determine the transmission power of the first service to be transmitted and the transmission power of the second service to be transmitted.

In addition, the computer-readable storage medium of the embodiment of the present invention is used for storing a computer program, and the computer program can be executed by the processor to realize the following steps: determining the priority order information of the current service to be transmitted; according to the priority order of the current service to be transmitted information to determine the transmit power of the current service to be transmitted.

Wherein, when applied to the transmission mode 3 in the single-carrier scenario and the transmission mode 4 within the coverage, determining the transmission power of the currently to-be-transmitted service according to the priority order information of the current to-be-transmitted service includes: setting the current to-be-transmitted service The expected received power corresponding to the service to be transmitted, wherein, as the priority of the current service to be transmitted increases, the value of the expected received power increases; using the expected received power, calculate the transmit power of the current service to be transmitted; wherein , according to the following formula, use the expected received power to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or The expected received power in transmission mode 4, α _PSSCH,i represents the high layer parameter in transmission mode 3 or transmission mode 4, i=3 or 4; PL represents the estimated link path loss.

Wherein, when applied to the transmission mode 3 in the single-carrier scenario and the transmission mode 4 within the coverage, determining the transmission power of the currently to-be-transmitted service according to the priority order information of the current to-be-transmitted service includes: setting the current to-be-transmitted service The power spectral density corresponding to the service to be transmitted, wherein, as the priority of the current service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, the transmit power of the current service to be transmitted is calculated.

Wherein, according to the following formula, use the power spectral density to calculate the transmit power of the current service to be transmitted:

Among them, P _PSSCH represents the transmit power of the current service to be transmitted, M _PSSCH represents the transmission bandwidth of PSSCH, M _PSCCH represents the transmission bandwidth of PSCCH, P _CMAX represents the maximum transmit power allowed by the UE, and P _{O_PSSCH,i} represents transmission mode 3 or Expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectral density offset of PSCCH relative to the PSSCH carrying the service to be transmitted ; PL represents the estimated link path loss.

Wherein, when applied to the transmission mode 3 in the carrier aggregation scenario and the transmission mode 4 within the coverage, the current service to be transmitted includes a first service to be transmitted and a second service to be transmitted, and the priority order of the first service to be transmitted higher than the priority order of the second to-be-transmitted service; determining the transmit power of the currently to-be-transmitted service according to the priority information of the current to-be-transmitted service includes: obtaining a preset total transmit power; determining the first to-be-transmitted service The transmission power of the transmission service; in the remaining transmission power, the transmission power is determined for the second service to be transmitted, wherein the remaining transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted.

Wherein, in the remaining transmission power, before determining the transmission power for the second service to be transmitted, the method further includes: determining whether the remaining transmission power meets the transmission requirement of the second service to be transmitted; When the transmission requirement of the second service to be transmitted is required, the second service to be transmitted is not transmitted; the determining the transmission power for the second service to be transmitted in the remaining transmission power includes: when the remaining transmission power satisfies the second transmission to be transmitted When the service is required for transmission, the transmission power is determined for the second service to be transmitted in the remaining transmission power.

Wherein, the determining the transmit power of the first service to be transmitted includes: setting an expected receive power corresponding to the first service to be transmitted, wherein, along with the first service to be transmitted As the priority of the service increases, the value of the expected received power increases; using the expected received power, the transmit power of the first service to be transmitted is calculated.

Wherein, according to the following formula, the expected received power is used to calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss.

The determining the transmit power of the first service to be transmitted includes: setting a power spectral density corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the power spectral density The value of , increases; using the power spectral density, the transmit power of the first service to be transmitted is calculated.

Wherein, according to the following formula, the power spectral density is used to calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the power spectrum of PSCCH relative to the PSSCH carrying the first service to be transmitted Density offset; PL represents the estimated link path loss.

Wherein, when applied to the out-of-coverage transmission mode 4 scenario, determining the transmission power of the currently to-be-transmitted service according to the priority order information of the current to-be-transmitted service includes: according to the current to-be-transmitted service priority order information, Determine the power spectral density of the currently to-be-transmitted service, where the power spectral density increases as the priority of the currently to-be-transmitted service increases; and determine the transmit power of the currently to-be-transmitted service according to the power spectral density.

Wherein, when applied to the transmission mode 3 in the carrier aggregation scenario and the out-of-coverage transmission mode 4, the currently to-be-transmitted service includes a first to-be-transmitted service and a second to-be-transmitted service, wherein the priority of the first to-be-transmitted service higher than the priority order of the second service to be transmitted; the determining the transmission power of the current service to be transmitted according to the priority order information of the current service to be transmitted includes: respectively according to the priority order of the first service to be transmitted and the priority order of the service to be transmitted The priority order of the second service to be transmitted, determining the first power spectral density of the first service to be transmitted and the second power spectral density of the second service to be transmitted, where the first power spectral density is greater than the second power spectral density ; determine 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 by the present invention, it should be understood that the disclosed methods and apparatuses may be implemented in other manners; for example, the apparatus embodiments described above are only It is schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or elements may be combined or integrated into another system, or some features may be ignored. , or not implemented; another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms .

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit; the above-mentioned integrated units are both It can be implemented in the form of hardware, or it can be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units realized in the form of software functional units can be stored in a computer-readable storage medium; the above-mentioned software functional units are stored in a storage medium and include several instructions to make a computer device (which can be a personal computer, server, or network device, etc.) to execute part of the steps of the method for sending and receiving according to various embodiments of the present invention, and the aforementioned storage medium includes: a flash drive, a mobile hard disk, and a read-only memory (Read-Only Memory, ROM) , Random Access Memory (Random Access Memory, RAM), disks or CDs and other media that can store program codes.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

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Claims (6)

A power control method, comprising: determining priority order information of a service to be transmitted currently; determining the transmit power of the service to be transmitted currently according to the priority order information of the service currently to be transmitted; wherein, when the power control method is applied to a carrier aggregation scenario Under the transmission mode 3 and the transmission mode 4 within the coverage, the current service to be transmitted includes 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 second service to be transmitted. the priority order; determining the transmission power of the current service to be transmitted according to the priority order information of the current service to be transmitted includes: obtaining a preset total transmission power; determining the transmission power of the first service to be transmitted; in the remaining transmission power , determining the transmission power for the second service to be transmitted, where the remaining transmission power is equal to the total transmission power minus the transmission power of the first service to be transmitted; wherein, determining the transmission power of the first service to be transmitted includes: Setting the power spectral density corresponding to the first service to be transmitted, wherein, as the priority of the first service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, calculate the first to be transmitted The transmission power of the service; wherein, the transmission power of the first service to be transmitted is calculated according to the following formula:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,i represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the physical bypass control channel PSCCH relative to the first service to be transmitted. The power spectral density offset of the physical bypass shared channel PSSCH; PL represents the estimated link path loss. The power control method according to claim 1, wherein, in the remaining transmission power, before determining the transmission power for the second service to be transmitted, the power control method further comprises: determining whether the remaining transmission power satisfies the second transmission power The sending requirement of the service to be transmitted; when the remaining sending power does not meet the sending requirement of the second service to be transmitted, do not transmit the second service to be transmitted; in the remaining sending power, determine the transmission for the second service to be transmitted The power includes: when the remaining 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 remaining sending power. The power control method according to claim 1, wherein the determining of the transmit power of the first service to be transmitted includes: setting an expected receive power corresponding to the first service to be transmitted, wherein, along with the transmission power of the first service to be transmitted As the priority order increases, the value of the expected received power increases; using the expected received power, the transmit power of the first service to be transmitted is calculated. The power control method according to claim 3, wherein the expected received power is used to calculate the transmit power of the first service to be transmitted according to the following formula:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH} indicates transmission mode 3 or transmission Expected received power in mode 4, α _PSSCH represents the high layer parameter in transmission mode 3 or transmission mode 4; PL represents the estimated link path loss. A power control device, comprising: a memory, a processor, and a program stored in the memory and running on the processor; wherein the processor is used to read the program in the memory, and perform the following process: determine the current The priority order information of the service to be transmitted; according to the priority order information of the current service to be transmitted, the transmission power of the current service to be transmitted is determined; wherein, when the power control method is applied to the transmission mode 3 in the carrier aggregation scenario and the coverage In transmission mode 4, the currently to-be-transmitted service includes a first to-be-transmitted service and a second to-be-transmitted service, wherein the priority of the first to-be-transmitted service is higher than the priority of the second to-be-transmitted service; The priority order information of the service, determining the transmission power of the current service to be transmitted includes: obtaining a preset total transmission power; determining the transmission power of the first service to be transmitted; in the remaining transmission power, determining for the second service to be transmitted transmission power, wherein the remaining 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 a corresponding value of the first service to be transmitted power spectral density, wherein, as the priority of the first service to be transmitted increases, the value of the power spectral density increases; using the power spectral density, the transmit power of the first service to be transmitted is calculated; wherein, according to the following formula to calculate the transmit power of the first service to be transmitted:

Among them, P _PSSCH indicates the transmission power of the first service to be transmitted, M _PSSCH indicates the transmission bandwidth of PSSCH, M _PSCCH indicates the transmission bandwidth of PSCCH, P _CMAX indicates the maximum transmission power allowed by the UE, and P _{O_PSSCH,i} indicates transmission mode 3 Or the expected received power in transmission mode 4, α _PSSCH,j represents the high-level parameter in transmission mode 3 or transmission mode 4, i=3 or 4; n represents the physical bypass control channel PSCCH relative to carrying the first service to be transmitted The power spectral density offset of the physical bypass shared channel PSSCH; PL represents the estimated link path loss. A computer-readable storage medium, wherein the computer-readable storage medium is used for storing a computer program, and when the computer program is executed by a processor, implements the steps in the power control method according to any one of claims 1 to 4.

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