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US 12,604,219 B2Granted
Measuring backhaul channel of RIS/repeater
AssigneeQUALCOMM Incorporated
InventorsIgor Gutman, Tao Luo
Life of this patent
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Abstract
A network node may transmit a signal for a controller associated with at least one RIS/repeater, the signal including a TCI state associated with at least one backhaul channel between the network node and at least one repeater, and obtain a measurement of a reference signal of the at least one backhaul channel based on the signal including the TCI state associated with the at least one backhaul channel. The controller and the at least one RIS/repeater may indicate the measurement of reference signal of the at least one backhaul channel based on the signal including the TCI state associated with the at least one backhaul channel.
Claims30
An apparatus for wireless communication at a network node, comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to:
- transmit an indication of a transmission configuration indicator (TCI) state to a controller that is separate from and coupled to at least one repeater having a reconfigurable intelligent surface (RIS), wherein the TCI state is indicated to the controller for measurement of a backhaul channel between the network node and the RIS of the at least one repeater;
- and
- obtain the measurement of a reference signal of the at least one backhaul channel based on the indication of the TCI state, wherein the measurement is obtained as one of:
- measurement information received from the controller of a downlink reference signal measurement of a downlink reference signal transmitted from the network node based on the TCI state and measured based on reception at one of the controller or the RIS,
- the measurement measured at the network node of an uplink reference signal received at the network node from the controller or the RIS based on the TCI state, or
- the measurement measured at the network node of an echo signal from the RIS of a receive (Rx) waveform from the network node.
6 more elements
An apparatus for wireless communication at a controller associated with at least one repeater, comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to:
- receive, at the controller, an indication of a transmission configuration indicator (TCI) state associated with at least one backhaul channel between a network node and a reconfigurable intelligent surface (RIS) of the at least one repeater, wherein the controller is separate from and coupled to the at least one repeater, wherein the TCI state is indicated to the controller for measurement of the backhaul channel between the network node and the RIS of the at least one repeater;
- and
- indicate the measurement of a reference signal of the at least one backhaul channel based on the indication of the TCI state, wherein the measurement is indicated as one of:
- measurement of the reference signal on a downlink (DL) channel using an analog hardware of at least one of the at least one repeater or the controller,
- transmission of an uplink (UL) reference signal of the controller or the at least one repeater, or
- an echo signal via the RIS of a receive (Rx) waveform from the network node.
6 more elements
An apparatus for wireless communication at a repeater, comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to:
- receive a first instruction from a controller, that is separate from and coupled to the repeater, to indicate a measurement of a reference signal of at least one backhaul channel between a reconfigurable intelligent surface (RIS) and a network node, wherein the measurement is based on the reference signal and an indicated transmission configuration indicator (TCI) state;
- and
- indicate the measurement of the reference signal of the at least one backhaul channel based on the indicated TCI state, wherein the measurement is indicated based on one of:
- transmission, to the controller, of a downlink (DL) reference based on the indicated TCI state,
- transmission, to the network node, of an uplink (UL) reference signal based on the indicated TCI state, or
- transmission, to the network node, of an echo signal of a receive (Rx) waveform from the network node based on the indicated TCI state.
6 more elements
A method of wireless communication at a network node, comprising:
- transmitting an indication of a transmission configuration indicator (TCI) state to a controller that is separate from and coupled to at least one repeater having a reconfigurable intelligent surface (RIS), wherein the TCI state is indicated to the controller for measurement of a backhaul channel between the network node and the RIS of the at least one repeater;
- and
- obtaining the measurement of a reference signal of the at least one backhaul channel based on the indication of the TCI state, wherein the measurement is obtained as one of:
- measurement information received from the controller of a downlink reference signal measurement of a downlink reference signal transmitted from the network node based on the TCI state and measured based on reception at one of the controller or the RIS,
- the measurement measured at the network node of an uplink reference signal received at the network node from the controller or the RIS based on the TCI state, or
- the measurement measured at the network node of an echo signal from the RIS of a receive (Rx) waveform from the network node.
3 more elements
Dependencies are inferred from the claim text.