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US 11,902,190 B2Granted
TRS reference signaling in LTE/NR coexistence
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsHåkan Björkegren, Robert Baldemair
Life of this patent
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Abstract
There is disclosed a method of operating a user equipment in a radio access network, wherein the method comprises receiving tracking reference signaling, TRS, in a TRS pattern. The TRS pattern represents a distribution of subcarriers for carrying TRS over a range of subcarriers shifted relative to a reference subcarrier corresponding to a central frequency subcarrier of an LTE carrier.
Claims14
A method of operating a user equipment in a radio access network, wherein the method comprises:
- receiving tracking reference signaling (TRS) in a TRS pattern, the TRS being received based on a coordination indication indicating operation of an LTE radio access network in coexistence with a New Radio (NR) radio access network for which the TRS pattern was transmitted, the coordination indication further indicating a reference signaling pattern for the LTE radio access network, the reference signaling pattern pertaining to a symbol time interval overlapping in part and coinciding in time with the symbol in which TRS is transmitted;
- the TRS pattern represents a distribution of subcarriers for carrying TRS over a range of subcarriers shifted relative to a reference subcarrier corresponding to a central frequency subcarrier of a Long Term Evolution (LTE) carrier;
- and
- the TRS pattern being shifted to be arranged above the reference subcarrier in frequency space, or is shifted to be arranged below the reference subcarrier in frequency space.
1 more element
A user equipment for a radio access network, the user equipment comprising:
- radio circuitry;
- and
- processing circuitry configured to receive tracking reference signaling, TRS, in a TRS pattern, the TRS being received based on a coordination indication indicating operation of an LTE radio access network in coexistence with a New Radio (NR) radio access network for which the TRS pattern was transmitted, the coordination indication further indicating a reference signaling pattern for the LTE radio access network, the reference signaling pattern pertaining to a symbol time interval overlapping in part and coinciding in time with the symbol in which TRS is transmitted, the TRS pattern represents a distribution of subcarriers for carrying TRS over a range of subcarriers shifted relative to a reference subcarrier corresponding to a central frequency subcarrier of a Long Term Evolution (LTE) carrier, the TRS pattern being shifted to be arranged above the reference subcarrier in frequency space, or is shifted to be arranged below the reference subcarrier in frequency space.
A method of operating a network node in a radio access network, wherein the method comprises:
- transmitting tracking reference signaling (TRS) in a TRS pattern, the TRS being transmitted based on a coordination indication indicating operation of an LTE radio access network in coexistence with a New Radio (NR) radio access network for which the TRS pattern was transmitted, the coordination indication further indicating a reference signaling pattern for the LTE radio access network, the reference signaling pattern pertaining to a symbol time interval overlapping in part and coinciding in time with the symbol in which TRS is transmitted;
- the TRS pattern represents a distribution of subcarriers for carrying TRS over a range of subcarriers shifted relative to a reference subcarrier corresponding to a central frequency subcarrier of an LTE carrier;
- and
- the TRS pattern being shifted to be arranged above the reference subcarrier in frequency space, or is shifted to be arranged below the reference subcarrier in frequency space.
1 more element
A network node for a radio access network, the network node comprising:
- radio circuitry;
- and
- processing circuitry configured to transmit tracking reference signaling (TRS) in a TRS pattern, the TRS being transmitted based on a coordination indication indicating operation of an LTE radio access network in coexistence with a New Radio (NR) radio access network for which the TRS pattern was transmitted, the coordination indication further indicating a reference signaling pattern for the LTE radio access network, the reference signaling pattern pertaining to a symbol time interval overlapping in part and coinciding in time with the symbol in which TRS is transmitted, the TRS pattern represents a distribution of subcarriers for carrying TRS over a range of subcarriers shifted relative to a reference subcarrier corresponding to a central frequency subcarrier of an LTE carrier, the TRS pattern being shifted to be arranged above the reference subcarrier in frequency space, or is shifted to be arranged below the reference subcarrier in frequency space.
Dependencies are inferred from the claim text.