Back to results
US 12,010,067 B2Granted
Slot-based CSI report configuration for dynamic TDD
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsSara Sandberg, Sebastian Faxér, Shiwei Gao, Arne Simonsson
Life of this patent
Estimating the term…
Abstract
A method for operating a cell, performed by a network node. The method includes transmitting a frame comprising a set of slots receiving Channel State Information, CSI, reports at least indicative of interference measured by a user equipment using the set of slots, estimating a transmission direction pattern of an adjacent cell relative a transmission direction pattern of the cell based on the received CSI reports, and transmitting a signal to the user equipment based on the estimated transmission direction pattern of the adjacent cell.
Claims17
A method for operating a cell, performed by a network node, the method comprising:
- transmitting a frame comprising a set of slots;
- receiving Channel State Information, CSI, reports at least indicative of interference measured by a user equipment using the set of slots;
- estimating a transmission direction pattern of an adjacent cell relative to a transmission direction pattern of the cell based on the received CSI reports;
- transmitting a signal to the user equipment based on the estimated transmission direction pattern of the adjacent cell;
- calculating a statistical measure of interference levels, of each slot of the set of slots, using the CSI reports and previously received historical CSI reports;
- the transmission direction pattern of the adjacent cell estimated using the statistical measure;
- determining that the statistical measure is stationary;
- and
- selecting only one slot out of the corresponding slots having the stationary statistical measure for later CSI reporting instances.
6 more elements
A method performed by a user equipment, the method comprising:
- receiving a Channel State Information, CSI, measurement configuration message indicative of a set of slots comprised in a frame from a network node;
- measuring interference using the set of slots;
- sending a Channel State Information, CSI, report indicative of interference measured using the set of slots;
- and
- receiving a signal from the network node, the signal having been transmitted based on an estimated transmission direction pattern of an adjacent cell, and been based on a calculated statistical measure of interference levels, of each slot of the set of slots, using the CSI reports and previously received historical CSI reports, the transmission direction pattern of the adjacent cell having been estimated using the statistical measure, having been determined that the statistical measure is stationary, and having been selected as only one slot out of the corresponding slots, having the stationary statistical measure, for later CSI reporting instances.
2 more elements
A network node comprising:
- processing circuitry configured to:
- transmit a frame comprising a set of slots;
- receive Channel State Information, CSI, reports at least indicative of interference measured by a user equipment using the set of slots;
- estimate a transmission direction pattern of an adjacent cell relative a transmission direction pattern of the cell based on the received CSI reports;
- transmit a signal to the user equipment based on the estimated transmission direction pattern of the adjacent cell;
- calculate a statistical measure of interference levels, of each slot of the set of slots, using the CSI reports and previously received historical CSI reports;
- the transmission direction pattern of the adjacent cell estimated using the statistical measure;
- determine that the statistical measure is stationary;
- and
- select only one slot out of the corresponding slots, having the stationary statistical measure, for later CSI reporting instances.
7 more elements
A user equipment comprising:
- processing circuitry configured to:
- receive a Channel State Information, CSI, measurement configuration message indicative of a set of slots comprised in a frame from a network node;
- measure interference using the set of slots;
- send a Channel State Information, CSI, report indicative of interference measured using the set of slots;
- and
- receive a signal from the network node, the signal being configured to have been transmitted based on an estimated transmission direction pattern of an adjacent cell, using the CSI reports and previously received historical CSI reports, the transmission direction pattern of the adjacent cell estimated using the statistical measure, and having been determines that the statistical measure is stationary, and having been selected as only one slot out of the corresponding slots, having the stationary statistical measure, for later CSI reporting instances.
3 more elements
Dependencies are inferred from the claim text.