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US 2026/0058702 A1Published application
Configuration for phase tracking reference signal ports to enable uplink transmission with multiple codewords
AssigneeQUALCOMM Incorporated
InventorsFang YUAN, Mostafa KHOSHNEVISAN, Wooseok NAM, Tao LUO
Life of this patent
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Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine an association between multiple phase tracking reference signal (PTRS) ports and multiple codewords that are to be used for an uplink communication that uses multiple antenna port groups, and transmit the uplink communication using the multiple codewords based at least in part on the association. Numerous other aspects are provided.
Claims20
An apparatus for wireless communication at a user equipment (UE), comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to cause the UE to:
- determine an association between multiple phase tracking reference signal (PTRS) ports, and multiple codewords that correspond to an uplink communication configured for transmission via multiple antenna port groups;
- determine a time density for the multiple PTRS ports associated with the multiple codewords based at least in part on a highest modulation and coding scheme indicated for the multiple codewords;
- and
- transmit the uplink communication in accordance with the multiple codewords based at least in part on the association.
4 more elements
An apparatus for wireless communication at a network node, comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to cause the network node to:
- determine transmission parameters for multiple codewords of a user equipment (UE) that correspond to an uplink communication configured for transmission via multiple antenna port groups;
- and
- transmit downlink control information (DCI) that identifies the transmission parameters to enable the UE to determine an association between multiple phase tracking reference signal (PTRS) ports and the multiple codewords,
- wherein transmission of the DCI is to further enable the UE to determine a time density for the multiple PTRS ports that are to be associated with the multiple codewords based at least in part on a highest modulation and coding scheme indicated by the transmission parameters for the multiple codewords.
4 more elements
An apparatus for wireless communication at a user equipment (UE), comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to cause the UE to:
- receive downlink control information (DCI) that identifies transmission parameters for multiple codewords for an uplink communication configured for transmission via multiple antenna port groups;
- determine a time density for multiple phase tracking reference signal (PTRS) ports associated with the multiple codewords based at least in part on a highest modulation and coding scheme indicated for the multiple codewords;
- and
- transmit the uplink communication in accordance with the multiple codewords based at least in part on an association between the multiple PTRS ports and the multiple codewords,
- wherein a power boosting for a PTRS port, of the multiple PTRS ports, associated with a codeword, of the multiple codewords, is based at least in part on a quantity of layers that are identified by a precoding indicator indicated by the transmission parameters for the multiple codewords and a total quantity of PTRS ports that are associated with the multiple codewords.
5 more elements
An apparatus for wireless communication at a network node, comprising:
- one or more memories;
- and
- one or more processors, coupled to the one or more memories, configured to cause the network node to:
- transmit downlink control information (DCI) that identifies transmission parameters for multiple codewords that correspond to an uplink communication configured for transmission via multiple antenna port groups;
- determine a time density for multiple phase tracking reference signal (PTRS) ports associated with the multiple codewords based at least in part on a highest modulation and coding scheme indicated for the multiple codewords;
- and
- receive the uplink communication in accordance with the multiple codewords based at least in part on an association between the multiple PTRS ports and the multiple codewords,
- wherein a power boosting for a PTRS port, of the multiple PTRS ports, associated with a codeword, of the multiple codewords, is based at least in part on a quantity of layers that are identified by a precoding indicator indicated by the transmission parameters for the multiple codewords and a total quantity of PTRS ports that are associated with the multiple codewords.
5 more elements
Dependencies are inferred from the claim text.