System and Method for Power Control
First Claim
1. A method comprising:
- determining, by a served user equipment (UE), a downlink signal to noise ratio (SNIR) between the served UE and a serving base station;
computing an uplink transmit power level as a function of the downlink SNIR; and
transmitting uplink data, from the served UE, over physical uplink shared channel (PUSCH) resources in accordance with uplink transmit power level.
1 Assignment
0 Petitions
Accused Products
Abstract
A user equipment (UE) may compute uplink power control levels as a function of a downlink signal to noise ratio (SNIR). For example, the UE may determine an uplink transmit power level by summing a full power control (FPC) transmit power level, a product of a first adjustment factor (β) and the downlink SNIR, and a negative of a second adjustment factor (Δ2) when the product of the first adjustment factor (β) and the downlink SNIR is greater than or equal to the second adjustment factor (Δ2). A UE may also compute an uplink power control level as a function of target and/or current interference levels associated with neighboring base stations. A UE may also iteratively reduce a transmit power level until an interference level experienced by a neighboring base station has fallen below a threshold.
-
Citations
23 Claims
-
1. A method comprising:
-
determining, by a served user equipment (UE), a downlink signal to noise ratio (SNIR) between the served UE and a serving base station; computing an uplink transmit power level as a function of the downlink SNIR; and transmitting uplink data, from the served UE, over physical uplink shared channel (PUSCH) resources in accordance with uplink transmit power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A served user equipment (UE) comprising:
-
a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; determine a downlink signal to noise ratio (SNIR) between the served UE and a serving base station; compute an uplink transmit power level as a function of the downlink SNIR; and transmit uplink data over physical uplink shared channel (PUSCH) resources in accordance with uplink transmit power level.
-
-
10. A method comprising:
-
receiving, by a served UE, a message indicating target interference levels associated with neighboring base stations; computing an uplink transmit power level as a function of the target interference levels associated with the neighboring base stations; and transmitting uplink data, from the served UE, over the PUSCH resources in accordance with uplink transmit power level. - View Dependent Claims (11)
-
-
12. A served user equipment (UE) comprising:
-
a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive a message indicating target interference levels associated with neighboring base stations; compute an uplink transmit power level as a function of the target interference levels associated with the neighboring base stations; and transmit uplink data over physical uplink shared channel (PUSCH) resources in accordance with uplink transmit power level.
-
-
13. A method comprising:
-
receiving, by a served user equipment (UE), a message indicating current interference levels associated with neighboring base stations; computing, by the served UE, an uplink transmit power level as a function of the current interference levels associated with the neighboring base stations; and transmitting uplink data from the served UE, over physical uplink shared channel (PUSCH) resources in accordance with uplink transmit power level. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
-
21. A served user equipment (UE) comprising:
-
a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to; receive a message indicating current interference levels associated with neighboring base stations; compute an uplink transmit power level as a function of the current interference levels associated with the neighboring base stations; and transmit uplink data over physical uplink shared channel (PUSCH) resources in accordance with uplink transmit power level.
-
-
22. A method comprising:
-
receiving, by a served user equipment (UE), an instruction from a serving base station, the instruction instructing the served UE to iteratively reduce an uplink transmit power level of the served UE until an interference level experienced by a neighboring base station has fallen below a threshold; and iteratively reducing the uplink transmit power level of the served UE over a sequence of time intervals until an instruction to resume a normal power control procedure is received from the serving base station. - View Dependent Claims (23)
-
Specification