Methods and apparatuses for downlink tracking reference signal configuration
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsHåkan Björkegren, Per Ernström, Mattias Frenne, Stephen Grant, Karl Werner
Life of this patent
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Abstract
A method, wireless device and network node are disclosed. According to one aspect, a method for a wireless device includes receiving a configuration of a reference signal resource set from the network node, the reference signal resource set being a set of single-symbol and single antenna port reference signal resources in at least one slot; and based on at least one parameter of the received configuration, determining whether the UE can assume a same antenna port for all reference signal resources of the reference signal resource set.
Claims15
A method for a wireless device, WD, configured to communicate with a network node, the method comprising:
- receiving a configuration of a channel state information, CSI, reference signal resource set from the network node, the CSI reference signal resource set comprising a plurality of single symbol and single antenna port reference signal resources in at least one slot, the received configuration comprising an indicator indicating that the single antenna port of all of the plurality of reference signal resources in the set are the same;
- receiving from the network node reference signal resources in accordance with the configuration of the CSI reference signal resource set;
- and
- based on the indicator, using the received reference signal resources as a set of tracking reference signals.
A wireless device, WD, configured to communicate with a network node, and further configured to:
- receive a configuration of a channel state information, CSI, reference signal resource set from the network node, the CSI reference signal resource set comprising a plurality of single symbol and single antenna port reference signal resources in at least one slot, the received configuration comprising an indicator indicating that the single antenna port of all of the plurality of reference signal resources in the set are the same;
- receive from the network node reference signal resources in accordance with the configuration of the CSI reference signal resource set;
- and
- based on the indicator, use the received reference signal resources as a set of tracking reference signals.
A method for a network node configured to communicate with a wireless device, WD, the method comprising:
- transmitting a configuration of a channel state information, CSI, reference signal resource set from the network node, the CSI reference signal resource set comprising a plurality of single symbol and single antenna port reference signal resources in at least one slot, the transmitted configuration comprising an indicator indicating that the single antenna port of all of the plurality of reference signal resources in the set are the same;
- transmitting to the WD reference signal resources in accordance with the configuration of the CSI reference signal resource set, enabling use of the reference signal resources as a set of tracking reference signals.
A network node configured to communicate with a wireless device, WD, the network node further configured to:
- transmit a configuration of a channel state information, CSI, reference signal resource set from the network node, the CSI reference signal resource set comprising a plurality of single symbol and single antenna port reference signal resources in at least one slot, the transmitted configuration comprising an indicator indicating that the single antenna port of all of the plurality of reference signal resources in the set are the same;
- transmit to the WD reference signal resources in accordance with the configuration of the CSI reference signal resource set, enabling use of the reference signal resources as a set of tracking reference signals.
Dependencies are inferred from the claim text.