Time-Domain Resource Allocation for PUSCH Scheduling
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Solution Overview
Problem
Current wireless communication systems face limitations in communication capacity, speed, flexibility, and efficiency due to the restricted flexibility and efficiency of existing communication structures, particularly in time-domain resource allocation for uplink transmissions.
Innovation Solution
The implementation of enhanced time-domain resource allocation methods, including the use of additional bits in the time-domain resource allocation field to increase granularity, and the introduction of new DCI formats or reinterpreting existing fields to accommodate more than 4-bit time-domain resource assignments, allowing for more precise scheduling of physical uplink shared channels (PUSCH) transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing communication structures are used, then device complexity is reduced, but communication capacity and efficiency deteriorate
Solution Approach 1:
The patent segments the time-domain resource allocation field into multiple parts, with different bit allocations for different resource types. The resource allocation is divided into frequency domain resource assignment, time domain resource assignment, and other parameters, allowing independent optimization of each segment to improve overall communication capacity without requiring complete structural redesign.
Solution Approach 2:
The patent introduces an additional bit dimension in the time-domain resource allocation field to enhance scheduling granularity. By adding bits in the time domain dimension, the system achieves finer resource allocation precision without fundamentally changing the existing communication protocol structure, thus improving capacity while maintaining acceptable complexity.
2Manufacturing precision
If existing DCI formats are used, then device complexity is reduced, but scheduling precision deteriorates
Solution Approach 1:
The patent changes the parameter configuration of DCI formats by adjusting the bit allocation in the time-domain resource assignment field. Specifically, it increases the number of bits available for time-domain resource indication, allowing more precise scheduling of PUSCH transmissions. This parameter adjustment enables finer granularity in resource allocation without requiring completely new DCI format designs.
Solution Approach 2:
The patent makes existing DCI formats multi-functional by configuring them to support both legacy and enhanced resource allocation modes. The same DCI format structure is used, but with flexible bit field interpretations that can accommodate different scheduling precision requirements, thereby achieving improved precision while maintaining compatibility and reducing the need for separate complex format definitions.
3Productivity
If existing resource allocation methods are used, then ease of operation is maintained, but communication efficiency deteriorates
Solution Approach 1:
The patent introduces dynamic resource allocation where the time-domain resource assignment can be flexibly adjusted based on traffic conditions and QoS requirements. The system dynamically selects different resource allocation patterns and bit interpretations, allowing communication efficiency to be optimized in real-time while maintaining a standardized interface that preserves ease of operation through automated scheduling algorithms.
Data Source
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AI summary
A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a radio resource control (RRC) message comprising a first parameter(s) used for configuring a first allocation table and a second allocation table. Each of the first allocation table and the second allocation table are used for defining a time domain allocation for a physical uplink shared channel (PUSCH) transmission. The receiving circuitry is also configured to detect in a UE specific search space, a downlink control information (DCI) format comprising first information used for indicating a row index to the first allocation table or the second allocation table. The DCI format is used for scheduling of the PUSCH. The UE also includes transmitting circuitry configured to perform, based on a detection of the DCI format, the PUSCH transmission based on either of the fist allocation table or the second allocation table.