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US 12,119,912 B2Granted
Configuration of active groups of antenna ports
AssigneeQUALCOMM Incorporated
InventorsYi Huang, Yu Zhang, Runxin Wang, Hyojin Lee
Life of this patent
Estimating the term…
Abstract
Aspects relate to configuring active groups of antenna ports. An apparatus may support different groups of antenna ports. One or more of these groups may be designated as active (e.g., for a scheduled transmission). In some examples, a first apparatus may send to a second apparatus an indication of the active groups. The second apparatus may then use the active groups for a transmission.
Claims25
An apparatus for communication, comprising:
- an interface;
- and
- a processing system configured to:
- obtain, via the interface, a first indication of at least one active group of a plurality of groups of antenna ports;
- obtain, via the interface, at least one transmit precoding matrix indicator for the at least one active group, wherein the at least one transmit precoding matrix indicator comprises a single transmit precoding matrix indicator for a first active group of the at least one active group, a second active group of the at least one active group, and a third active group of the at least one active group;
- and
- output, via the interface for transmission, signals associated with at least one antenna port of the at least one active group.
4 more elements
A method for communication at an apparatus, the method comprising:
- obtaining a first indication of at least one active group of a plurality of groups of antenna ports;
- obtaining at least one transmit precoding matrix indicator for the at least one active group, wherein the at least one transmit precoding matrix indicator comprises a single transmit precoding matrix indicator for a first active group of the at least one active group, a second active group of the at least one active group, and a third active group of the at least one active group;
- and
- outputting, for transmission, signals associated with at least one antenna port of the at least one active group.
1 more element
A first apparatus for communication, comprising:
- an interface;
- and
- a processing system configured to:
- output, via the interface for transmission to a second apparatus, a first indication of at least one active group of a plurality of groups of antenna ports;
- obtain, via the interface, signals from the second apparatus that are associated with at least one antenna port of the at least one active group;
- obtain, via the interface, a second indication of particular groups of the plurality of groups of antenna ports that are supported by the second apparatus;
- and
- obtain, via the interface, a third indication of at least one respective antenna port in each particular group supported by the second apparatus.
5 more elements
Dependencies are inferred from the claim text.