Grouping user equipment based on downlink power
Aspects of the disclosure relate to downlink (DL) transmissions using various powers and assigning frequency resources based on the powers. An example base station may transmit, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first DL transmission on a first downlink (DL) resource on a carrier, the first DL resource being at a first frequency. The first DL resource may be at a first frequency. The first Tx power may have a power level configured based on a difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier. Then, the base station may transmit the first DL transmission using the first frequency and the first Tx power. Other aspects, embodiments, and features are also claimed and described.
1. A method of wireless communication operable at a base station, the method comprising:
transmitting, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first downlink (DL) transmission on a first DL resource on a carrier, the first DL resource being at a first frequency, the first Tx power having a power level configured based on an additive difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier; and
transmitting the first DL transmission using the first frequency and the first Tx power.
2. The method of claim 1 , further comprising:
transmitting, to a second UE, an indication of a second Tx power for a second DL transmission on a second DL resource on the carrier, the second DL resource being at a second frequency, the second Tx power having a power level configured based on an additive difference between the second frequency for the second DL resource and the UL frequency region of the carrier,
wherein the second Tx power differs from the first Tx power based on a frequency difference between the second DL resource and the first DL resource.
3. The method of claim 2 , wherein a first timing advance (TA) value corresponding to the first UE is shorter than a second TA value corresponding to the second UE, and
wherein the power level of the first Tx power is lower than the power level of the second Tx power.
4. The method of claim 2 , wherein a first location of the first UE is closer to the base station than a second location of the second UE, and
wherein the power level of the first Tx power is lower than the power level of the second Tx power.
5. The method of claim 2 , wherein a first UL power corresponding to a first signal from the first UE is less than a second UL power corresponding to a second signal from the second UE, and
wherein the power level of the first Tx power is higher than the power level of the second Tx power.
6. The method of claim 2 , wherein a first path-loss level corresponding to a first signal from the first UE is lower than a second path-loss level corresponding to a second signal from the second UE, and
wherein the power level of the first Tx power is lower than the power level of the second Tx power.
7. The method of claim 2 , wherein a first signal strength corresponding to a first signal from the first UE is less than a second signal strength corresponding to a second signal from the second UE, and
wherein the power level of the first Tx power is higher than the power level of the second Tx power.
8. The method of claim 2 , wherein a UL resource on the UL frequency region is assigned in frequency between the first frequency and the second frequency.
9. The method of claim 2 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein the first DL resource at the first frequency is closer in frequency to the UL frequency region than the second DL resource at the second frequency to the UL frequency region.
10. The method of claim 2 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein a first frequency range between the first frequency and the UL frequency region is narrower than a second frequency range between the second frequency and the UL frequency region.
11. The method of claim 10 , wherein the first frequency range is a first guard band, and
wherein the second frequency range is a second guard band.
12. A base station configured for wireless communication, comprising:
a processor;
a transceiver communicatively coupled to the processor; and
a memory communicatively coupled to the processor,
wherein the processor and the memory are configured to:
transmit, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first downlink (DL) transmission on a first DL resource on a carrier, the first DL resource being at a first frequency, the first Tx power having a power level configured based on an additive difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier; and
transmit the first DL transmission using the first frequency and the first Tx power.
13. The base station of claim 12 , wherein the processor and the memory are further configured to:
transmit, to a second UE, an indication of a second Tx power for a second DL transmission on a second DL resource on the carrier, the second DL resource being at a second frequency, the second Tx power having a power level configured based on an additive difference between the second frequency for the second DL resource and the UL frequency region of the carrier,
wherein the second Tx power differs from the first Tx power based on a frequency difference between the second DL resource and the first DL resource.
14. The base station of claim 13 , wherein a first timing advance (TA) value corresponding to the first UE is shorter than a second TA value corresponding to the second UE, and
wherein the power level of the first Tx power is lower than the power level of the second Tx power.
15. The base station of claim 13 , wherein a UL resource on the UL frequency region is assigned in frequency between the first frequency and the second frequency.
16. The base station of claim 13 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein the first DL resource at the first frequency is closer in frequency to the UL frequency region than the second DL resource at the second frequency to the UL frequency region.
17. The base station of claim 13 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein a first frequency range between the first frequency and the UL frequency region is narrower than a second frequency range between the second frequency and the UL frequency region.
18. The base station of claim 17 , wherein the first frequency range is a first guard band, and
wherein the second frequency range is a second guard band.
19. A non-transitory computer-readable medium storing computer executable code, comprising code for causing a base station to:
transmit, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first downlink (DL) transmission on a first DL resource on a carrier, the first DL resource being at a first frequency, the first Tx power having a power level configured based on an additive difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier; and
transmit the first DL transmission using the first frequency and the first Tx power.
20. The non-transitory computer-readable medium of claim 19 , wherein the code for causing the base station further to:
transmit, to a second UE, an indication of a second Tx power for a second DL transmission on a second DL resource on the carrier, the second DL resource being at a second frequency, the second Tx power having a power level configured based on an additive difference between the second frequency for the second DL resource and the UL frequency region of the carrier,
wherein the second Tx power differs from the first Tx power based on a frequency difference between the second DL resource and the first DL resource.
21. The non-transitory computer-readable medium of claim 20 , wherein a UL resource on the UL frequency region is assigned in frequency between the first frequency and the second frequency.
22. The non-transitory computer-readable medium of claim 20 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein the first DL resource at the first frequency is closer in frequency to the UL frequency region than the second DL resource at the second frequency to the UL frequency region.
23. The non-transitory computer-readable medium of claim 20 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein a first frequency range between the first frequency and the UL frequency region is narrower than a second frequency range between the second frequency and the UL frequency region.
24. The non-transitory computer-readable medium of claim 23 , wherein the first frequency range is a first guard band, and
wherein the second frequency range is a second guard band.
25. A base station for wireless communication, comprising:
means for transmitting, to a first user equipment (UE), an indication of a first transmit (Tx) power for a first downlink (DL) transmission on a first DL resource on a carrier, the first DL resource being at a first frequency, the first Tx power having a power level configured based on an additive difference between the first frequency for the first DL resource and an uplink (UL) frequency region of the carrier; and
means for transmitting the first DL transmission using the first frequency and the first Tx power.
26. The base station of claim 25 , further comprising:
means for transmitting, to a second UE, an indication of a second Tx power for a second DL transmission on a second DL resource on the carrier, the second DL resource being at a second frequency, the second Tx power having a power level configured based on an additive difference between the second frequency for the second DL resource and the UL frequency region of the carrier,
wherein the second Tx power differs from the first Tx power based on a frequency difference between the second DL resource and the first DL resource.
27. The base station of claim 26 , wherein a UL resource on the UL frequency region is assigned in frequency between the first frequency and the second frequency.
28. The base station of claim 26 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein the first DL resource at the first frequency is closer in frequency to the UL frequency region than the second DL resource at the second frequency to the UL frequency region.
29. The base station of claim 26 , wherein the power level of the first Tx power is less than the power level of the second Tx power, and
wherein a first frequency range between the first frequency and the UL frequency region is narrower than a second frequency range between the second frequency and the UL frequency region.
30. The base station of claim 29 , wherein the first frequency range is a first guard band, and
wherein the second frequency range is a second guard band.