CARRIER POWER CONTROL METHOD AND APPARATUS, STORAGE MEDIUM, AND COMPUTER PROGRAM PRODUCT

• US 20200137697A1
• Filed: 12/27/2019
• Published: 04/30/2020
• Est. Priority Date: 06/28/2017
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Yao, Guoqiang, Li, Guowei, Zhang, Yan, Li, Hongbao
• Granted Patent: US 10,893,485 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 52/143 Downlink power control
• CPC Class Codes: H04W 52/223 predicting future states of the transmission
• CPC Class Codes: H04W 52/228 using past power values or information
• CPC Class Codes: H04W 52/246 where the output power of a terminal is based on a path parameter calculated in said terminal
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

A method includes: setting a maximum transmit power of common channels of a plurality of carriers based on a signal coverage; setting a maximum transmit power of traffic channels of the plurality of carriers; and transmitting, for each scheduling period and based on the maximum transmit power of the common channels of the plurality of carriers, the maximum transmit power of the traffic channels of the plurality of carriers and a shared transmit power of the traffic channels of the plurality of carriers in the scheduling period, the plurality of carriers in the scheduling period.

Claims

1. A method, comprising:

setting, by a network device based on a signal coverage of the network device, a maximum transmit power of common channels of a plurality of carriers;

setting, by the network device based on a total signal transmit power of the network device and the maximum transmit power of the common channels of the plurality of carriers, a maximum transmit power of traffic channels of the plurality of carriers; and

transmitting, by the network device for each scheduling period of a plurality of scheduling periods, the plurality of carriers in the respective scheduling period, wherein the plurality of carriers in the respective scheduling period are transmitted based on the maximum transmit power of the common channels of the plurality of carriers, the maximum transmit power of the traffic channels of the plurality of carriers, and a shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period;

wherein the shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period is obtained after setting a plurality of shared traffic powers of a scheduling period previous to the respective scheduling period for the traffic channels of the plurality of carriers, and the plurality of shared traffic powers of the previous scheduling period are determined based on the maximum transmit power of the traffic channels of the plurality of carriers and an actual transmit power of the traffic channels of the plurality of carriers in the previous scheduling period.

2. The method according to claim 1, wherein after transmitting the plurality of carriers in a first scheduling period of the plurality of scheduling periods, the method further comprises:

determining an actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period;

determining, based on the maximum transmit power of the traffic channels of the plurality of carriers and the actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period, a plurality of shared traffic powers of the first scheduling period; and

setting the plurality of shared traffic powers of the first scheduling period for the traffic channels of the plurality of carriers, to obtain a shared transmit power of the traffic channels of the plurality of carriers in a next scheduling period relative to the first scheduling period.

3. The method according to claim 2, wherein determining, based on the maximum transmit power of the traffic channels of the plurality of carriers and the actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period, the plurality of shared traffic powers of the first scheduling period comprises:

determining, for each carrier in the plurality of carriers, whether a power obtained by subtracting an actual transmit power of a traffic channel of the respective carrier in the first scheduling period from a maximum transmit power of the traffic channel of the respective carrier is greater than a preset power, and in response to determining that the power obtained by subtracting the actual transmit power of the traffic channel of the respective carrier in the first scheduling period from the maximum transmit power of the traffic channel of the respective carrier is greater than the preset power, using the power as a shared traffic power of the first scheduling period.

4. The method according to claim 2, wherein setting the plurality of shared traffic powers of the first scheduling period for the traffic channels of the plurality of carriers, to obtain the shared transmit power of the traffic channels of the plurality of carriers in the next scheduling period relative to the first scheduling period comprises:

determining a plurality of target traffic channels in the traffic channels of the plurality of carriers, wherein the plurality of target traffic channels are channels whose traffic performance needs to be improved; and

setting the plurality of shared traffic powers of the first scheduling period for the plurality of target traffic channels, to obtain a shared transmit power of the plurality of target traffic channels in a next scheduling period relative to the first scheduling period.

5. The method according to claim 1, further comprising:

keeping, for each carrier in the plurality of carriers, when the respective carrier is communicating with a near point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, increasing a quantity of resource blocks (RBs) occupied by the traffic channel of the respective carrier, and decreasing a power spectrum density of the traffic channel of the respective carrier, wherein a distance between the near point terminal and the network device is less than a preset distance; and

keeping, for each carrier in the plurality of carriers, when the respective carrier is communicating with a far point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, decreasing the quantity of the RBs occupied by the traffic channel of the respective carrier, and increasing the power spectrum density of the traffic channel of the respective carrier, wherein a distance between the far point terminal and the network device is not less than the preset distance.

6. An apparatus, applied to a network device, comprising:

at least one processor; and

interface circuitry coupled with the at least one processor;

wherein the at least one processor is configured to cooperate with the interface circuitry to execute one or more instructions to perform operations comprising;

setting, based on a signal coverage of the network device, a maximum transmit power of common channels of a plurality of carriers;

setting, based on a total signal transmit power of the network device and the maximum transmit power of the common channels of the plurality of carriers, a maximum transmit power of traffic channels of the plurality of carriers; and

transmitting, for each scheduling period of a plurality of scheduling periods, the plurality of carriers in the scheduling period, wherein the plurality of carriers in the scheduling period are transmitted based on the maximum transmit power of the common channels of the plurality of carriers, the maximum transmit power of the traffic channels of the plurality of carriers, and a shared transmit power of the traffic channels of the plurality of carriers in the scheduling period; and

wherein the shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period is obtained after setting a plurality of shared traffic powers of a scheduling period previous to the respective scheduling period for the traffic channels of the plurality of carriers, and the plurality of shared traffic powers of the previous scheduling period are obtained through determining based on the maximum transmit power of the traffic channels of the plurality of carriers and an actual transmit power of the traffic channels of the plurality of carriers in the previous scheduling period.

7. The apparatus according to claim 6, wherein the at least one processor is further configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

determining an actual transmit power of the traffic channels of the plurality of carriers in a first scheduling period of the plurality of scheduling periods;

determining, based on the maximum transmit power of the traffic channels of the plurality of carriers and the actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period, a plurality of shared traffic powers of the scheduling period; and

setting the plurality of shared traffic powers of the scheduling period for the traffic channels of the plurality of carriers, to obtain a shared transmit power of the traffic channels of the plurality of carriers in a next scheduling period relative to the first scheduling period.

8. The apparatus according to claim 7, wherein the at least one processor is configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

determining, for each carrier in the plurality of carriers, whether a power obtained by subtracting an actual transmit power of a traffic channel of the respective carrier in the scheduling period from a maximum transmit power of the traffic channel of the respective carrier is greater than a preset power, and in response to determining that the power obtained by subtracting the actual transmit power of the traffic channel of the respective carrier in the first scheduling period from the maximum transmit power of the traffic channel of the respective carrier is greater than the preset power, using the power as a shared traffic power of the first scheduling period.

9. The apparatus according to claim 7, wherein the at least one processor is configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

determining a plurality of target traffic channels in the traffic channels of the plurality of carriers, wherein the plurality of target traffic channels are channels whose traffic performance needs to be improved; and

setting the plurality of shared traffic powers of the scheduling period for the plurality of target traffic channels, to obtain a shared transmit power of the plurality of target traffic channels in a next scheduling period relative to the first scheduling period.

10. The apparatus according to claim 6, wherein the at least one processor is further configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

keeping, for each carrier in the plurality of carriers, when the respective carrier is communicating with a near point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, increase a quantity of resource blocks (RBs) occupied by the traffic channel of the respective carrier, and decrease a power spectrum density of the traffic channel of the respective carrier, wherein a distance between the near point terminal and the network device is less than a preset distance; and

keeping, for each carrier in the plurality of carriers, when the respective carrier is communicating with a far point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, decrease the quantity of the RBs occupied by the traffic channel of the respective carrier, and increase the power spectrum density of the traffic channel of the respective carrier, wherein a distance between the far point terminal and the network device is not less than the preset distance.

11. A method, comprising:

setting, by a network device based on a signal coverage of the network device, a maximum transmit power of common channels of a plurality of to-be-transmitted carriers;

setting, by the network device based on a total signal transmit power of the network device and the maximum transmit power of the common channels of the plurality of carriers, a maximum transmit power of traffic channels of the plurality of carriers;

keeping, by the network device for each carrier in the plurality of carriers, when the respective carrier is communicating with a near point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, increasing a quantity of resource blocks (RBs) occupied by the traffic channel of the respective carrier, and decreasing a power spectrum density of the traffic channel of the respective carrier, wherein a distance between the near point terminal and the network device is less than a preset distance; and

keeping, by the network device for each carrier in the plurality of carriers, when the respective carrier is communicating with a far point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, decreasing the quantity of the RBs occupied by the traffic channel of the respective carrier, and increasing the power spectrum density of the traffic channel of the respective carrier, wherein a distance between the far point terminal and the network device is not less than the preset distance.

12. The method according to claim ii, further comprising:

transmitting, by the network device for each scheduling period of a plurality of scheduling periods, the plurality of carriers in the respective scheduling period, wherein the plurality of carriers in the respective scheduling period are transmitted based on the maximum transmit power of the common channels of the plurality of carriers, the maximum transmit power of the traffic channels of the plurality of carriers, and a shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period;

wherein the shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period is obtained after setting a plurality of shared traffic powers of a scheduling period previous to the respective scheduling period for the traffic channels of the plurality of to-be-transmitted carriers, and the plurality of shared traffic powers of the previous scheduling period are determined based on the maximum transmit power of the traffic channels of the plurality of carriers and an actual transmit power of the traffic channels of the plurality of carriers in the previous scheduling period.

13. The method according to claim 12, wherein after transmitting the plurality of carriers in a first scheduling period of the plurality of scheduling periods, the method further comprises:

determining an actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period;

determining, based on the maximum transmit power of the traffic channels of the plurality of carriers and the actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period, a plurality of shared traffic powers of the first scheduling period; and

setting the plurality of shared traffic powers of the first scheduling period for the traffic channels of the plurality of carriers, to obtain a shared transmit power of the traffic channels of the plurality of carriers in a next scheduling period relative to the first scheduling period.

14. The method according to claim 13, wherein determining, based on the maximum transmit power of the traffic channels of the plurality of carriers and the actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period, the plurality of shared traffic powers of the first scheduling period comprises:

determining, for each carrier in the plurality of carriers, whether a power obtained by subtracting an actual transmit power of a traffic channel of the respective carrier in the first scheduling period from a maximum transmit power of the traffic channel of the respective carrier is greater than a preset power, and in response to determining that the power obtained by subtracting the actual transmit power of the traffic channel of the respective carrier in the first scheduling period from the maximum transmit power of the traffic channel of the respective carrier is greater than the preset power, using the power as a shared traffic power of the first scheduling period.

15. The method according to claim 13, wherein setting the plurality of shared traffic powers of the first scheduling period for the traffic channels of the plurality of carriers, to obtain the shared transmit power of the traffic channels of the plurality of carriers in the next scheduling period relative to the first scheduling period comprises:

determining a plurality of target traffic channels in the traffic channels of the plurality of carriers, wherein the plurality of target traffic channels are channels whose traffic performance needs to be improved; and

setting the plurality of shared traffic powers of the first scheduling period for the plurality of target traffic channels, to obtain a shared transmit power of the plurality of target traffic channels in a next scheduling period relative to the first scheduling period.

16. An apparatus, applied to a network device, comprising:

at least one processor; and

interface circuitry, coupled with the at least one processor;

wherein the at least one processor is configured to cooperate with the interface circuitry to execute one or more instructions to perform operations comprising;

setting, based on a signal coverage of the network device, a maximum transmit power of common channels of a plurality of carriers;

setting, based on a total signal transmit power of the network device and the maximum transmit power of the common channels of the plurality of carriers, a maximum transmit power of traffic channels of the plurality of carriers;

keeping, for each carrier in the plurality of carriers, when the respective carrier is communicating with a near point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, increase a quantity of resource blocks (RBs) occupied by the traffic channel of the respective carrier, and decrease a power spectrum density of the traffic channel of the respective carrier, wherein a distance between the near point terminal and the network device is less than a preset distance; and

keeping, for each carrier in the plurality of carriers, when the respective carrier is communicating with a far point terminal, the maximum transmit power of the traffic channel of the respective carrier unchanged, decrease the quantity of the RBs occupied by the traffic channel of the respective carrier, and increase the power spectrum density of the traffic channel of the respective carrier, wherein a distance between the far point terminal and the network device is not less than the preset distance.

17. The apparatus according to claim 16, wherein the at least one processor is further configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

transmitting, for each scheduling period of a plurality of scheduling periods, the plurality of carriers in the respective scheduling period, wherein the plurality of carriers in the respective scheduling period are transmitted based on the maximum transmit power of the common channels of the plurality of carriers, the maximum transmit power of the traffic channels of the plurality of carriers, and a shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period;

wherein the shared transmit power of the traffic channels of the plurality of carriers in the respective scheduling period is obtained after setting a plurality of shared traffic powers of a scheduling period previous to the respective scheduling period for the traffic channels of the plurality of to-be-transmitted carriers, and the plurality of shared traffic powers of the previous scheduling period are determined based on the maximum transmit power of the traffic channels of the plurality of carriers and an actual transmit power of the traffic channels of the plurality of carriers in the previous scheduling period.

18. The apparatus according to claim 17, wherein the at least one processor is further configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

determining an actual transmit power of the traffic channels of the plurality of carriers in a first scheduling period of the plurality of scheduling periods;

determining, based on the maximum transmit power of the traffic channels of the plurality of carriers and the actual transmit power of the traffic channels of the plurality of carriers in the first scheduling period, a plurality of shared traffic powers of the first scheduling period; and

setting the plurality of shared traffic powers of the first scheduling period for the traffic channels of the plurality of carriers, to obtain a shared transmit power of the traffic channels of the plurality of carriers in a next scheduling period relative to the first scheduling period.

19. The apparatus according to claim 18, wherein the at least one processor is configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

determining, for each carrier in the plurality of carriers, whether a power obtained by subtracting an actual transmit power of a traffic channel of the respective carrier in the first scheduling period from a maximum transmit power of the traffic channel of the respective carrier is greater than a preset power, and in response to determining that the power obtained by subtracting the actual transmit power of the traffic channel of the respective carrier in the first scheduling period from the maximum transmit power of the traffic channel of the respective carrier is greater than the preset power, using the power as a shared traffic power of the first scheduling period.

20. The apparatus according to claim 18, wherein the at least one processor is configured to cooperate with the interface circuitry to execute the one or more instructions to perform operations comprising:

determining a plurality of target traffic channels in the traffic channels of the plurality of carriers, wherein the plurality of target traffic channels are channels whose traffic performance needs to be improved; and

setting the plurality of shared traffic powers of the first scheduling period for the plurality of target traffic channels, to obtain a shared transmit power of the plurality of target traffic channels in a next scheduling period relative to the first scheduling period.