Scheme of finite power transmission statuses for low cost wireless broadband communication system
View Patent ↗Some wireless communications environments, such as Wi-Fi, may include inexpensive power amplifiers where the power adjustment may not be accurate, and may also include pathloss measurement errors that are high enough to degrade performance of a power control algorithm. To address this issue, an exemplary aspect is directed toward a finite state power control algorithm and technique that, while designed for next generation Wi-Fi standards, such as 802.11ax, can in general be used with any wireless communication protocol or standard.
1. A system comprising:
an interference mitigation module to determine a target transmission power level, wherein the target transmission power level is determined based on:
a Signal-to-Interference-plus-Noise Ratio (SINR) power control algorithm which is based on a target Signal-to-Interference-plus-Noise Ratio value, an estimated pathloss value and an estimated noise and interference power level, or
a Signal-to-Noise Ratio (SNR) power control algorithm which is based on an estimated pathloss value, a target SNR value and a white noise power level;
a power control module to select a transmission power level; and
a power control state selection module to determine a number of total transmission power states for a transceiver based on the transmission power level.
2. The system of claim 1 , wherein the interference mitigation module further determines a maximum allowed transmission power level.
3. The system of claim 1 , wherein the number of total transmission power states for the transceiver is based on a transmission power limitation where one state is selected that is a highest transmission power level within the transmission power level.
4. The system of claim 1 , wherein the number of total transmission power states for the transceiver is based on approaching a target power level.
5. The system of claim 1 , wherein the transceiver utilizes a transmission power state for transmission.
6. The system of claim 5 , wherein the transmission power state is determined each time a link is utilized.
7. The system of claim 1 , wherein performance gain is improved while maintaining robustness from pathloss measurement dynamic error.
8. The system of claim 1 , further comprising storage adapted to store information about each of the transmission power states.
9. A method comprising:
determining a target transmission power level, wherein the target transmission power level is determined based on:
a Signal-to-Interference-plus-Noise Ratio (SINR) power control algorithm which is based on a target Signal-to-Interference-plus-Noise Ratio value, an estimated pathloss value and an estimated noise and interference power level, or
a Signal-to-Noise Ratio (SNR) power control algorithm which is based on an estimated pathloss value, a target SNR value and a white noise power level;
selecting a transmission power level; and
determining a number of total transmission power states for a transceiver based on the transmission power level.
10. The method of claim 9 , further comprising determining a maximum allowed transmission power level.
11. The method of claim 9 , wherein the number of total transmission power states for the transceiver is based on a transmission power limitation where one state is selected that is a highest transmission power level within the transmission power level.
12. The method of claim 9 , wherein the number of total transmission power states for the transceiver is based on approaching a target power level.
13. The method of claim 9 , wherein the transceiver utilizes a transmission power state for transmission.
14. The method of claim 13 , wherein the transmission power state is determined each time a link is utilized.
15. The method of claim 9 , wherein performance gain is improved while maintaining robustness from pathloss measurement dynamic error.
16. The method of claim 9 , further comprising storing information about each of the transmission power states.
17. A system comprising:
means for determining a target transmission power level, wherein the target transmission power level is determined based on:
a Signal-to-Interference-plus-Noise Ratio (SINR) power control algorithm which is based on a target Signal-to-Interference-plus-Noise Ratio value, an estimated pathloss value and an estimated noise and interference power level, or
a Signal-to-Noise Ratio (SNR) power control algorithm which is based on an estimated pathloss value, a target SNR value and a white noise power level;
means for selecting a transmission power level; and
means for determining a number of total transmission power states for a transceiver based on the transmission power level.
18. The system of claim 17 , wherein the number of total transmission power states for the transceiver is based on a transmission power limitation where one state is selected that is a highest transmission power level within the transmission power level.
19. The system of claim 17 , wherein the number of total transmission power states for the transceiver is based on approaching a target power level.
20. The system of claim 17 , wherein the transceiver utilizes a transmission power state for transmission.
21. The system of claim 20 , wherein the transmission power state is determined each time a link is utilized.
22. A non-transitory computer readable information storage media having stored thereon instructions, that when executed by one or more processors, cause to be performed a method comprising:
determining a target transmission power level, wherein the target transmission power level is determined based on:
a Signal-to-Interference-plus-Noise Ratio (SINR) power control algorithm which is based on a target Signal-to-Interference-plus-Noise Ratio value, an estimated pathloss value and an estimated noise and interference power level, or
a Signal-to-Noise Ratio (SNR) power control algorithm which is based on an estimated pathloss value, a target SNR value and a white noise power level;
selecting a transmission power level; and
determining a number of total transmission power states for a transceiver based on the transmission power level.