Back to results
US 12,738,993 B2Granted
Port-selection codebook with frequency selective precoded CSI-RS
AssigneeQUALCOMM Incorporated
InventorsChenxi Hao, Yu Zhang, Liangming Wu, Hao Xu
Life of this patent
Estimating the term…
Abstract
A configuration to configure a UE to receive a plurality of CSI-RS ports where different ports may be transmitted on different sets of RBs within the frequency band of the CSI-RS. The apparatus receives CSI-RS through a plurality of CSI-RS ports, wherein different CSI-RS ports of the plurality of CSI-RS ports are transmitted on a different set of RBs. The apparatus reports at least one CSI based on a CSI-RS pattern.
Claims27
An apparatus for wireless communication at a user equipment (UE), comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to:
- receive channel state information (CSI) reference signals (RS) (CSI-RS) through a plurality of CSI-RS ports, wherein different CSI-RS ports of the plurality of CSI-RS ports correspond to a different set of resource blocks (RBs);
- and
- report at least one CSI based on a CSI-RS pattern, wherein the CSI-RS pattern corresponds to a port selection and a set of linear combination coefficients, wherein the port selection is based on a subset of a plurality of CSI-RS resources Ks, and wherein each CSI-RS resource in the subset corresponds to one of the different set of RBs, wherein the plurality of CSI-RS ports is within the plurality of CSI-RS resources Ks, Ks being an integer greater than or equal to two, wherein the CSI-RS ports within each resource is based on a corresponding set of RBs;
- receive a configuration of a first resource having a full resource mapping configuration and one or more additional configurations;
- and
- determine a resource mapping configuration for an additional resource based at least on the full resource mapping configuration and the one or more additional configurations.
6 more elements
A method of wireless communication of a user equipment (UE), comprising:
- receiving channel state information (CSI) reference signals (RS) (CSI-RS) through a plurality of CSI-RS ports, wherein different CSI-RS ports of the plurality of CSI-RS ports correspond to a different set of resource blocks (RBs);
- reporting at least one CSI based on a CSI-RS pattern, wherein the CSI-RS pattern corresponds to a port selection and a set of linear combination coefficients, wherein the port selection is based on a subset of a plurality of CSI-RS resources Ks, and wherein each CSI-RS resource in the subset corresponds to one of the different set of RBs, wherein the plurality of CSI-RS ports is within the plurality of CSI-RS resources Ks, Ks being an integer greater than or equal to two, wherein the CSI-RS ports within each resource is based on a corresponding set of RBs;
- receiving a configuration of a first resource having a full resource mapping configuration and one or more additional configurations;
- and
- determining a resource mapping configuration for an additional resource based at least on the full resource mapping configuration and the one or more additional configurations.
2 more elements
An apparatus for wireless communication at a base station, comprising:
- memory;
- and
- at least one processor coupled to the memory and configured to:
- transmit channel state information (CSI) reference signals (RS) (CSI-RS) through a plurality of CSI-RS ports, wherein different CSI-RS ports of the plurality of CSI-RS ports are transmitted on a different set of resource blocks (RBs;
- receive at least one CSI report based on the transmitted CSI-RS, wherein the at least one CSI report corresponds to a port selection and a set of linear combination coefficients, wherein the port selection is based on a subset of a plurality of CSI-RS resources Ks, and wherein each CSI-RS resource in the subset corresponds to one of the different set of RBs wherein Ks being an integer greater than or equal to two;
- and
- transmit, to a user equipment (UE), a configuration of a first resource having a full resource mapping configuration and one or more additional configurations, wherein the UE determines a resource mapping configuration for an additional resource based at least on the full resource mapping configuration and the one or more additional configurations.
4 more elements
A method of wireless communication of a base station (BS), comprising:
- transmitting channel state information (CSI) reference signals (RS) (CSI-RS) through a plurality of CSI-RS ports, wherein different CSI-RS ports of the plurality of CSI-RS ports are transmitted on a different set of resource blocks (RBs);
- and
- receiving at least one CSI report based on the transmitted CSI-RS, wherein the at least one CSI report corresponds to a port selection and a set of linear combination coefficients, wherein the port selection is based on a subset of a plurality of CSI-RS resources Ks, and wherein each CSI-RS resource in the subset corresponds to one of the different set of RBs, wherein Ks being an integer greater than or equal to two;
- and
- transmitting, to a user equipment (UE), a configuration of a first resource having a full resource mapping configuration and one or more additional configurations, wherein the UE determines a resource mapping configuration for an additional resource based at least on the full resource mapping configuration and the one or more additional configurations.
2 more elements
Dependencies are inferred from the claim text.