US 2025/0097850 A1Published application

Power control for repeaters and multi-path communication

AssigneeMediatek Inc.

InventorsLung-Sheng TSAI, Chia-Hao YU, Chun-Hao FANG, Kuan-Yuan CHEN

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Abstract

A method of power control can include receiving at a UE a first downlink reference signal from a repeater and a second downlink reference signal from a base station, the first downlink reference signal corresponding to a first path that is between the UE and the base station and passes the repeater, the second downlink reference signal corresponding to a second path that is between the UE and the base station. The UE estimates a first uplink path loss of the first path and a second uplink path loss of the second path and determine a first uplink transmit power corresponding to the first path and a second uplink transmit power corresponding to the second path. The UE performs an uplink transmission on the first path based on the first uplink transmit power and on the second path based on the second uplink transmit power.

Claims20

Dependent claims

A method, comprising:

receiving, at a user equipment (UE), a first downlink reference signal from a repeater and a second downlink reference signal from a base station, the first downlink reference signal corresponding to a first path that is between the UE and the base station and passes the repeater, the second downlink reference signal corresponding to a second path that is between the UE and the base station;
estimating a first uplink path loss of the first path that is between the UE and the base station and passes the repeater based on a measurement of the first downlink reference signal;
estimating a second uplink path loss of the second path that is between the UE and the base station based on a second downlink measurement of the second downlink reference signal;
determining a first uplink transmit power corresponding to the first path that is between the UE and the base station and passes the repeater based on the first uplink path loss;
determining a second uplink transmit power corresponding to the second path that is between the UE and the base station based on the second uplink path loss;
and
performing an uplink transmission on the first path that is between the UE and the base station and passes the repeater based on the first uplink transmit power and on the second path that is between the UE and the base station based on the second uplink transmit power.

4 more elements

A method, comprising:

receiving, at a repeater from a base station, a first indication of adjusting an uplink maximum transmit power of the repeater;
adjusting the uplink maximum transmit power to a first level according to the first indication of adjusting the uplink maximum transmit power of the repeater;
and
amplifying a first uplink signal received from a user equipment (UE) and forwarding the amplified first uplink signal to the base station, wherein
the adjusted uplink maximum transmit power of the first level is applied for amplifying the first uplink signal received from the UE such that instantaneous transmit power of the amplified first uplink signal received from the UE is not above the adjusted uplink maximum transmit power of the first level.

2 more elements

A repeater in a relay system, comprising circuitry configured to:

receive, at the repeater from a base station, a first indication of adjusting an uplink maximum transmit power of the repeater;
adjust the uplink maximum transmit power to a first level according to the first indication of adjusting the uplink maximum transmit power of the repeater;
and
amplify a first uplink signal received from a user equipment (UE) and forward the amplified first uplink signal to the base station, wherein
the adjusted uplink maximum transmit power of the first level is applied for amplifying the first uplink signal received from the UE such that instantaneous transmit power of the amplified first uplink signal received from the UE is not above the adjusted uplink maximum transmit power of the first level.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/724,371Filed 9 May 2023
Priority: 16 May 2022
Published: 20 Mar 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04W 52/146
Separate analysis of uplink or downlink: uplink power control
H04W 52/242
Using SIR [Signal to Interference Ratio] or other wireless path parameters: taking into account path loss
H04W 52/365
With a discrete range or set of values, e.g. step size, ramping or offsets: power headroom reporting
H04W 52/46
TPC being performed in particular situations: in multi-hop networks, e.g. wireless relay networks

Family

Application63/342,179Us provisional application · filed 16 May 2022
US 2025/0097850 A1This patent

From the US filing history. Foreign family members aren’t listed.

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