Patent ID: 11902190
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. 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.