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US 12,191,958 B2Granted
Methods and apparatuses for phase tracking reference signal
AssigneeLenovo (Beijing) Limited
InventorsBingchao Liu, Chenxi Zhu, Wei Ling, Lingling Xiao
Life of this patent
Estimating the term…
Abstract
Methods and apparatuses for phase tracking reference signal are disclosed. A method comprises configuring a PT-RS with N PT-RS antenna ports when a ‘Transmission Configuration Indication (TCI)’ field in DCI indicates N TCI states, wherein N is 2 or more; associating each PT-RS antenna port with one DM-RS antenna port; and transmitting the PT-RS with the N PT-RS antenna ports.
Claims20
A method comprising:
- configuring a phase tracking reference signal (PT-RS) with N PT-RS antenna ports when a ‘Transmission Configuration Indication (TCI)’ field in downlink control information (DCI) indicates N transmission configuration indication (TCI) states, wherein N is 2 or more;
- associating each PT-RS antenna port with one demodulation reference signal (DM-RS) antenna port, wherein each PT-RS antenna port is associated with a lowest indexed DM-RS antenna port among the indicated DM-RS antenna ports associated with a different TCI state indicated by the TCI field in the DCI;
- and
- transmitting the PT-RS with the N PT-RS antenna ports.
1 more element
A base unit for wireless communication, comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the base unit to:
- configure a phase tracking reference signal (PT-RS) with N PT-RS antenna ports when a ‘Transmission Configuration Indication (TCI)’ field in downlink control information (DCI) indicates N transmission configuration indication (TCI) states, and associates each PT-RS antenna port with one demodulation reference signal (DM-RS) antenna port, wherein N is 2 or more, wherein each PT-RS antenna port is associated with a lowest indexed DM-RS antenna port among the indicated DM-RS antenna ports associated with a different TCI state indicated by the TCI field in the DCI;
- and
- transmit the PT-RS with the N PT-RS antenna ports.
3 more elements
A remote unit for wireless communications, comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the remote unit to:
- receive a phase tracking reference signal (PT-RS) with N PT-RS antenna ports, wherein N is 2 or more,
- wherein the N PT-RS antenna ports is configured when a ‘Transmission Configuration Indication (TCI)’ field in downlink control information (DCI) indicates N transmission configuration indication (TCI) states, and
- each PT-RS antenna port is associated with a demodulation reference signal (DM-RS) antenna port, and wherein each PT-RS antenna port is associated with a lowest indexed DM-RS antenna port among the indicated DM-RS antenna ports associated with a different TCI state indicated by the TCI field in the DCI.
3 more elements
A processor for wireless communication, comprising:
- at least one controller coupled with at least one memory and configured to cause the processor to:
- receive a phase tracking reference signal (PT-RS) with N PT-RS antenna ports, wherein N is 2 or more,
- wherein the N PT-RS antenna ports is configured when a ‘Transmission Configuration Indication (TCI)’ field in downlink control information (DCI) indicates N transmission configuration indication (TCI) states, and
- each PT-RS antenna port is associated with a demodulation reference signal (DM-RS) antenna port, and wherein each PT-RS antenna port is associated with a lowest indexed DM-RS antenna port among the indicated DM-RS antenna ports associated with a different TCI state indicated by the TCI field in the DCI.
1 more element
Dependencies are inferred from the claim text.