Collision avoidance between epdcch and aperiodic csi-rs
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMattias FRENNE, Shiwei GAO, Robert Mark HARRISON, Florent MUNIER, Siva MURUGANATHAN
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Abstract
Methods, wireless devices and network nodes for avoiding collision between a downlink control channel and a aperiodic channel state information reference signal, aperiodic CSI-RS, are provided. According to some aspects, a method is provided that includes receiving an aperiodic channel state information reference signal, aperiodic CSI-RS, based on an assumption that the aperiodic CSI-RS is not present in physical layer resources corresponding to a downlink control channel set.
Claims26
1-55. (canceled)
A method in a user equipment, the method comprising:
- receiving an aperiodic channel state information reference signal, aperiodic CSI-RS, based on an assumption that the aperiodic CSI-RS is not present in physical layer resources corresponding to a downlink control channel set;
- and
- at least one of:
- receiving signaling to configure the user equipment for a downlink control channel set;
- and
- receiving on a physical control channel an indication of a presence of the aperiodic CSI-RS;
- and
- the indication of a presence of the aperiodic CSI-RS indicates that the aperiodic CSI-RS is present in one of a subframe and a slot.
57-76. (canceled)
A user equipment comprising:
- processing circuitry configured to:
- receive the aperiodic CSI-RS based on an assumption that the aperiodic CSI-RS is not present in physical layer resource corresponding to the downlink control channel set.
81-83. (canceled)
(canceled)
96-105. (canceled)
A base station, comprising:
- a processing circuitry configured to:
- signal to a user equipment to configure the user equipment with a downlink control channel set that does not contain an aperiodic CSI-RS;
- and
- signal to the user equipment an aperiodic CSI-RS, a presence of the aperiodic CSI-RS being in a downlink channel to enable the user equipment to assume that the aperiodic CSI-RS is not present in in physical resource blocks, PRBs, corresponding to the downlink control channel set.
(canceled)
Dependencies are inferred from the claim text.