Facilitating uplink operations in secondary cell without synchronization signal block
AssigneeNokia Technologies Oy
InventorsSamuli Heikki TURTINEN, Chunli WU, Sami-Jukka HAKOLA
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Abstract
Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of facilitating uplink operation in a secondary cell (SCell) without synchronization signal block (SSB). The method comprises receiving, from a network device, a PDCCH order for a SCell without SSB, the PDCCH order at least indicating a RO index and a RACH preamble index, and at least one of: a TRS index associated with the SCell, a CSI-RS resource index associated with the SCell, or a SSB index associated with a QCLed serving cell of the SCell, and initiating a RACH to the SCell based on the received PDCCH order.
Claims22
An apparatus comprising:
- at least one processor;
- and
- at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:
- receive, from a network device, a physical downlink control channel, PDCCH, order for a secondary cell, SCell, without a synchronization signal block, SSB, the PDCCH order at least indicating a random access channel occasion, RO, index and a random access channel, RACH, preamble index, and at least one of:
- a tracking reference signal, TRS, index associated with the SCell,
- a channel state information reference signal, CSI-RS, resource index associated with the SCell, or
- a SSB index associated with a quasi-co-location-ed, QCLed serving cell of the SCell,
- initiate a RACH to the SCell based on the received PDCCH order.
An apparatus comprising:
- at least one processor;
- and
- at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to:
- transmit, to a terminal device, a physical downlink control channel, PDCCH, order for a secondary cell, SCell, without a synchronization signal block, SSB, the PDCCH order at least indicating a random access channel occasion, RO, index and a random access channel, RACH, preamble index, and at least one of:
- a tracking reference signal, TRS, index associated with the SCell,
- a channel state information reference signal, CSI-RS, resource index associated with the SCell, or
- a SSB index associated with a quasi-co-location-ed, QCLed serving cell of the SCell;
- and
- receive random access information from the terminal device.
14-15. (canceled)
A method comprising:
- receiving, from a network device, a physical downlink control channel, PDCCH, order for a secondary cell, SCell, without a synchronization signal block, SSB, the PDCCH order at least indicating a random access channel occasion, RO, index and a random access channel, RACH, preamble index, and at least one of:
- a tracking reference signal, TRS, index associated with the SCell,
- a channel state information reference signal, CSI-RS, resource index associated with the SCell, or
- a SSB index associated with a quasi-co-location-ed, QCLed serving cell of the SCell,
- initiating a RACH to the SCell based on the received PDCCH order.
23-26. (canceled)
Dependencies are inferred from the claim text.