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US 11,990,994 B2Granted
Reference signal design
AssigneeQUALCOMM Incorporated
InventorsWei Yang, Sony Akkarakaran
Life of this patent
Estimating the term…
Abstract
Methods, systems, and devices for wireless communications are described. A method of wireless communication is described. A user equipment (UE) may receive an indication of one or more filter coefficients used by a base station to filter a reference signal used by the UE to determine channel quality information (CQI). The UE may receive a reference signal from the base station, and may determine the CQI based on the received reference signal and the one or more filter coefficients. The UE may transmit the determined CQI to the base station.
Claims30
A method for wireless communication at a user equipment (UE), comprising:
- determining one or more filter coefficients used by a network entity to filter a reference signal, the one or more filter coefficients being based at least in part on a type of the reference signal, wherein the reference signal is used by the UE to determine channel quality information;
- receiving the filtered reference signal from the network entity, the filtered reference signal being filtered by the network entity using the one or more filter coefficients;
- receiving a second signal;
- determining a type of quasi-collocation of the reference signal and the second signal, wherein the one or more filter coefficients associated with the filtered reference signal and one or more filter coefficients associated with the second signals are based at least in part on the type of quasi-collocation;
- measuring the channel quality information based at least in part on the filtered reference signal and the one or more filter coefficients;
- and
- transmitting, to the network entity, the channel quality information that is determined based at least in part on the filtered reference signal and based at least in part on the one or more filter coefficients determined to be used by the network entity.
4 more elements
A method for wireless communication at a network entity, comprising:
- determining a type of quasi-collocation of a reference signal and a second signal;
- determining one or more filter coefficients to filter the reference signal used by a user equipment (UE) to determine channel quality information based at least in part on the type of quasi-collocation;
- transmitting the one or more filter coefficients used by the network entity to filter the reference signal, the one or more filter coefficients being based at least in part on a type of the reference signal and based at least in part on determining the one or more filter coefficients;
- generating the filtered reference signal based at least in part on the one or more filter coefficients;
- transmitting the filtered reference signal and the second signal to the UE;
- and
- receiving, from the UE, the channel quality information based at least in part on the filtered reference signal and based at least in part on the one or more filter coefficients transmitted to the UE.
4 more elements
An apparatus for wireless communication at a user equipment (UE), comprising:
- a processor,
- memory coupled with the processor;
- and
- instructions stored in the memory and executable by the processor to cause the apparatus to:
- determine one or more filter coefficients used by a network entity to filter a reference signal, the one or more filter coefficients being based at least in part on a type of the reference signal, wherein the reference signal is used by the UE to determine channel quality information;
- receive the filtered reference signal from the network entity, the filtered reference signal being filtered by the network entity using the one or more filter coefficients;
- receiving a second signal;
- determine a type of quasi-collocation of the reference signal and the second signal, wherein the one or more filter coefficients associated with the filtered reference signal and one or more filter coefficients associated with the second signals are based at least in part on the type of quasi-collocation;
- measure the channel quality information based at least in part on the filtered reference signal and the one or more filter coefficients;
- and
- transmit, to the network entity, the channel quality information that is determined based at least in part on the filtered reference signal and the one or more filter coefficients determined to be used by the network entity.
8 more elements
An apparatus for wireless communication at a network entity, comprising:
- a processor,
- memory coupled with the processor;
- and
- instructions stored in the memory and executable by the processor to cause the apparatus to:
- determine a type of quasi-collocation of a reference signal and a second signal;
- determine one or more filter coefficients to filter the reference signal used by a user equipment (UE) to determine channel quality information based at least in part on the type of quasi-collocation;
- transmit the one or more filter coefficients used by the network entity to filter the reference signal, the one or more filter coefficients being based at least in part on a type of the reference signal and based at least in part on determining the one or more filter coefficients;
- generate the filtered reference signal based at least in part on the one or more filter coefficients;
- transmit the filtered reference signal and the second signal to the UE;
- and
- receive, from the UE, the channel quality information based at least in part on the filtered reference signal and based at least in part on the one or more filter coefficients transmitted by the network entity.
8 more elements
Dependencies are inferred from the claim text.