Enhanced demodulation reference signal (dmrs) for uplink transmission
AssigneeIntel Corporation
InventorsGuotong Wang, Alexei Davydov, Bishwarup Mondal, Avik Sengupta, Dong Han
Life of this patent
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Abstract
Systems, apparatuses, methods, and computer-readable media are provided for enhanced demodulation reference signal (DMRS) for uplink transmissions with up to eight layers (e.g., an uplink single user (SU)-multiple input, multiple output (MIMO) transmission). Additionally, embodiments relate to antenna port indication for DMRS transmission. Other embodiments may be described and claimed.
Claims21
1-20. (canceled)
An apparatus for use in a user equipment (UE), wherein the apparatus comprises:
- memory to store a downlink control information (DCI) received from a next-generation NodeB (gNB), wherein the DCI is to schedule a physical uplink shared channel (PUSCH), and wherein the DCI includes an antenna port field to indicate transmit ports for a demodulation reference signal (DMRS) with up to eight transmit ports;
- and
- one or more processors configured to encode the DMRS for transmission with the PUSCH based on the antenna port field.
One or more non-transitory computer-readable media having instructions, stored thereon, that when executed by one or more processors of a next generation Node B (gNB) configure the gNB to:
- encode, for transmission to a user equipment (UE), a downlink control information (DCI) to schedule a physical uplink shared channel (PUSCH), wherein the DCI includes an antenna port field to indicate transmit ports for a demodulation reference signal (DMRS) with up to eight transmit ports;
- and
- receive the PUSCH with the DMRS based on the DCI.
One or more non-transitory computer-readable media having instructions, stored thereon, that when executed by one or more processors of a user equipment (UE) configure the UE to:
- generate a demodulation reference signal (DMRS) with a comb-2 structure for a physical uplink shared channel (PUSCH);
- apply an orthogonal cover code (OCC) with a length of 4 to the DMRS to generate eight DMRS ports;
- and
- transmit the PUSCH and the DMRS based on the eight DMRS ports.
Dependencies are inferred from the claim text.