US Patent Application 17740297. TRANSMISSION PRECODING MATRIX INDICATOR GROUPING AND DESIGNS FOR UPLINK MULTI-LAYER TRANSMISSIONS simplified abstract
Contents
TRANSMISSION PRECODING MATRIX INDICATOR GROUPING AND DESIGNS FOR UPLINK MULTI-LAYER TRANSMISSIONS
Organization Name
Inventor(s)
Gokul Sridharan of Sunnyvale CA (US)
Hyojin Lee of San Diego CA (US)
TRANSMISSION PRECODING MATRIX INDICATOR GROUPING AND DESIGNS FOR UPLINK MULTI-LAYER TRANSMISSIONS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17740297 titled 'TRANSMISSION PRECODING MATRIX INDICATOR GROUPING AND DESIGNS FOR UPLINK MULTI-LAYER TRANSMISSIONS
Simplified Explanation
- The patent application describes methods, systems, and devices for wireless communications. - A user equipment (UE) can transmit capability information to the network indicating its coherence capability for transmitting multiple layers on a single antenna port. - The indicated capability information may be less than the actual capability of the UE, but it specifies which transmission precoding matrix indicator (TPMI) indexes are valid. - This helps prevent the UE from transmitting complex waveforms resulting from too many layers per antenna port. - The UE can indicate a threshold number of layers per antenna port it can support in the capability information. - The UE can also indicate its coherence capability on a per-rank basis. - The UE may be capable of supporting up to 8 layers per antenna port. - Codebooks may be restricted to support 8 layer transmissions in some cases.
Original Abstract Submitted
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit capability information to the network indicating its coherence capability for transmitting multiple layers on a single antenna port. In some cases, the indicated capability information may actually be less than the actual capability of the UE, but may indicate which transmission precoding matrix indicator (TPMI) indexes are valid, such that the UE is not expected to transmit complex waveforms resulting from too many layers per antenna port. In some examples, the UE may indicate, in the capability information, a threshold number of layers per antenna port it can support. In some examples, the UE may indicate its coherence capability on a per-rank basis. In some examples, the UE may be capable of supporting up to 8 layers per antenna port. In some cases, codebooks may be restricted to support 8 layer transmissions.
