Uplink spatial filter and precoder for joint channel estimation across physical uplink shared channels
AssigneeQUALCOMM Incorporated
InventorsHung Dinh Ly, Gokul Sridharan, Wei Yang, Krishna Kiran Mukkavilli
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Abstract
A base station performs joint channel estimation for a set of physical uplink shared channels (PUSCHs) with bundled DMRS from a user equipment (UE). The UE receives an indication to transmit the set of PUSCHs, each PUSCH of the set of PUSCHs comprising a corresponding DMRS from the base station. The base station transmits, and the UE receives, a sounding reference signal resource indicator for each PUSCH of the set of PUSCHs. The UE transmits the PUSCHs based on a same sounding reference single resource, the SRI for a first PUSCH of the set of PUSCHs indicating the same SRS resource.
Claims30
A method of wireless communication at a user equipment (UE), comprising:
- receiving, from a base station, an indication to transmit a set of physical uplink shared channels (PUSCHs), each PUSCH of the set of PUSCHs comprising a corresponding demodulation reference signal (DMRS);
- receiving, from the base station, for each PUSCH of the set of PUSCHs, a sounding reference signal (SRS) resource indicator (SRI);
- and
- transmitting, to the base station, the set of PUSCHs comprising the corresponding DMRS, the set of PUSCHs having phase continuity, each PUSCH of the set of PUSCHs being transmitted based on a first SRS resource, the SRI for a first PUSCH of the set of PUSCHs indicating the first SRS resource.
A method of wireless communication at a base station, comprising:
- transmitting, to a user equipment (UE), an indication to transmit a set of physical uplink shared channels (PUSCHs), each PUSCH comprising a demodulation reference signal (DMRS);
- transmitting, to the UE, for each PUSCH of the set of PUSCHs, a sounding reference signal (SRS) resource indicator (SRI);
- and
- receiving, from the UE, the set of PUSCHs, each PUSCH comprising the corresponding DMRS, the set of PUSCHs having phase continuity, each PUSCH of the set of PUSCHs being received based on a first SRS resource, the SRI for a first PUSCH of the set of PUSCHs indicating the first SRS resource.
An apparatus for wireless communication at a user equipment (UE) comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive, from a base station, an indication to transmit a set of physical uplink shared channels (PUSCHs), each PUSCH comprising a demodulation reference signals (DMRS);
- receive, from the base station, for each PUSCH of the set of PUSCHs, a sounding reference signal (SRS) resource indicator (SRI);
- and
- transmit, to the base station, the set of PUSCHs comprising the corresponding DMRS, the set of PUSCHs having phase continuity, each PUSCH of the set of PUSCHs being transmitted based on a first SRS resource, the SRI for a first PUSCH of the set of PUSCHs indicating the first SRS resource.
An apparatus for wireless communication at a base station comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- transmit, to a user equipment (UE), an indication to transmit a set of physical uplink shared channels (PUSCHs), each PUSCH comprising a demodulation reference signals (DMRS);
- transmit, to the UE, for each PUSCH of the set of PUSCHs, a sounding reference signal (SRS) resource indicator (SRI);
- and
- receive, from the UE, the set of PUSCHs, each PUSCH comprising the corresponding DMRS, the set of PUSCHs having phase continuity, each PUSCH of the set of PUSCHs being received based on a first SRS resource, the SRI for a first PUSCH of the set of PUSCHs indicating the first SRS resource.
Dependencies are inferred from the claim text.