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US 10,855,434 B2Granted
Channel state information for adaptively configured TDD communication systems
AssigneeSamsung Electronics Co., Ltd.
InventorsAris Papasakellariou, Jianzhong Zhang
Life of this patent
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Abstract
For a base station or a User Equipment (UE) in communication with each other, the UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. The base station configures a UE with resources for obtaining channel and interference measurements in two sets of Transmission Time Intervals (TTIs) and the UE obtains a Channel State Information (CSI) from the channel and interference measurements in the two sets of TTIs.
Claims20
A method for a communication by a user equipment (UE), the method comprising:
- receiving a configuration for a first set of time resources and for a second set of time resources, wherein the first set of time resources does not have any common elements with the second set of time resources;
- receiving channel state information-interference measurement (CSI-IM) resource configurations for a CSI-process, wherein the first set of time resources includes a first CSI-IM resource for a first of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations, and wherein the second set of time resources includes a second CSI-IM resource for a second of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations;
- performing
- a first interference measurement based on the first CSI-IM resource associated with the first CSI-IM configuration, and
- a second interference measurement based on the second CSI-IM resource associated with the second CSI-IM configuration;
- and
- transmitting a CSI report based on the first interference measurement or on the second interference measurement.
4 more elements
A user equipment (UE), comprising:
- a transceiver;
- and
- a processor coupled to the transceiver, wherein the processor is configured to:
- receive a configuration for a first set of time resources and for a second set of time resources, wherein the first set of time resources does not have any common elements with the second set of time resources,
- receive channel state information-interference measurement (CSI-IM) resource configurations for a CSI-process, wherein the first set of time resources includes a first CSI-IM resource for a first of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations, and wherein the second set of time resources includes a second CSI-IM resource for a second of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations,
- perform
- a first interference measurement based on the first CSI-IM resource associated with the first CSI-IM configuration, and
- a second interference measurement based on the second CSI-IM resource associated with the second CSI-IM configuration, and
- transmit a CSI report based on the first interference measurement or on the second interference measurement.
6 more elements
A method for a communication by a base station, the method comprising:
- transmitting, to a user equipment (UE), a configuration for a first set of time resources and for a second set of time resources, wherein the first set of time resources does not have any common elements with the second set of time resources;
- transmitting channel state information-interference measurement (CSI-IM) resource configurations for a CSI-process, wherein the first set of time resources includes a first CSI-IM resource for a first of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations, and wherein the second set of time resources includes a second CSI-IM resource for a second of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations;
- and
- receiving a CSI report based on a first interference measurement or on a second interference measurement, wherein
- the first interference measurement is based on the first CSI-IM resource associated with the first CSI-IM configuration, and
- the second interference measurement is based on the second CSI-IM resource associated with the second CSI-IM configuration.
3 more elements
A base station, comprising:
- a transceiver;
- and
- a processor coupled to the transceiver, wherein the processor is configured to:
- transmit a configuration for a first set of time resources and for a second set of time resources, wherein the first set of time resources does not have any common elements with the second set of time resources,
- transmit channel state information-interference measurement (CSI-IM) resource configurations for a CSI-process, wherein the first set of time resources includes a first CSI-IM resource for a first of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations, and wherein the second set of time resources includes a second CSI-IM resource for a second of the CSI-IM resource configurations and no other resource for the CSI-IM resource configurations, and
- receive a CSI report based on a first interference measurement or on a second interference measurement, wherein
- the first interference measurement is based on the first CSI-IM resource associated with the first CSI-IM configuration, and
- the second interference measurement is based on the second CSI-IM resource associated with the second CSI-IM configuration.
5 more elements
Dependencies are inferred from the claim text.