Single-DCI Multi-Panel PUSCH Scheduling for Simultaneous Uplink Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5G wireless communication technologies do not effectively support simultaneous multi-panel transmission of multiple Physical Uplink Shared Channels (PUSCHs) using a single downlink control information (DCI).
Innovation Solution
A method and apparatus that utilize a single DCI to configure a user equipment (UE) for simultaneous multi-panel transmission of multiple PUSCHs across spatial or frequency domain multiplexing resources, using time and frequency domain resource allocation bit-fields to allocate resources per UE antenna panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple DCIs are used to schedule multiple PUSCHs for multi-panel transmission, then resource allocation flexibility is improved, but control signaling overhead and device complexity increase
Solution Approach 1:
The patent merges multiple DCI messages into a single DCI that schedules multiple PUSCHs simultaneously. The single DCI contains multiple uplink grant fields, each configuring a PUSCH with specific time-frequency resources, modulation schemes, and other parameters. This consolidation reduces control signaling overhead and simplifies device complexity while maintaining the flexibility to allocate resources for multiple panels efficiently.
Solution Approach 2:
The single DCI structure is designed to be universal, capable of scheduling multiple PUSCHs with different configurations for different panels. The DCI includes multiple uplink grant fields that can independently configure each PUSCH, allowing the same DCI message to serve multiple transmission purposes simultaneously across different antenna panels with diverse resource requirements.
2Manufacturing precision
If multiple DCIs are used to schedule multiple PUSCHs, then resource allocation precision is improved, but control signaling overhead increases
Solution Approach 1:
The patent combines multiple uplink grants that would traditionally be sent in separate DCI messages into a single DCI structure. This single DCI contains multiple uplink grant fields, each providing precise resource allocation for a specific PUSCH. By merging these grants, the patent maintains precise resource allocation for each panel while significantly reducing control signaling overhead compared to sending separate DCIs.
3Reliability
If separate DCIs are used for each PUSCH, then transmission reliability is improved through independent scheduling, but processing time and complexity increase
Solution Approach 1:
The single DCI performs preliminary action by providing all necessary uplink grants for multiple PUSCHs simultaneously in one message. This allows the UE to receive and process all scheduling information at once, rather than waiting for multiple sequential DCI messages. The preliminary provision of all grant information reduces processing time and enables faster simultaneous transmission across multiple panels while maintaining reliability through independent grant configurations.
Data Source
AI summary
Methods and apparatuses for using a single downlink control information (DCI) and supporting simultaneous transmission simultaneous Physical Uplink Shared Channels (PUSCHs) using multiple user equipment (UE) antenna panels are described. In some embodiments, a baseband processor is configured to perform operations comprising: receiving configuration information from a base station, wherein the configuration information comprises a single downlink control information (DCI) that specifies an uplink resource allocation for a plurality of Physical Uplink Shared Channels (PUSCHs), wherein the uplink resource allocation for the plurality of PUSCHs is specified, per user equipment (UE) antenna panel. Once configured, the baseband processor transmits the plurality of PUSCHs simultaneously via the plurality of antenna panels, with one PUSCH of the plurality of PUSCHs being transmitted on a different one of the plurality of PUSCHs.