Cross-Slot Scheduling With Adaptive TDRA Gap Restrictions
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Solution Overview
Problem
Existing 5G communication systems face challenges in efficiently managing power consumption and resource allocation for ultra-reliable low-latency communications (URLLC) and massive machine type communication (mMTC) due to varying requirements in data rates, latency, and coverage, which are not optimally addressed by current cross-slot scheduling methods.
Innovation Solution
The implementation of a transceiver device that determines whether to apply restrictions to a time domain resource allocation (TDRA) table based on a minimum scheduling gap, considering the configuration of a common TDRA table and comparing the indicated minimum scheduling gap with the scheduling gaps in the table, to optimize power saving and resource allocation for downlink and uplink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If cross-slot scheduling is used to enable power saving, then power consumption is reduced, but scheduling flexibility and reliability are compromised
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the TDRA table based on the minimum scheduling gap indicator. When the indicator shows a larger scheduling gap, the UE applies a restricted TDRA table that enables power saving by skipping unnecessary processing. When the indicator shows a smaller scheduling gap, the UE uses the full TDRA table to maintain scheduling flexibility and reliability. This dynamic parameter adjustment resolves the contradiction between power saving and scheduling reliability.
2Use of energy by moving object
If UE applies restriction to TDRA table for power saving, then power consumption is reduced, but scheduling options are limited
Solution Approach 1:
The patent implements dynamics by making the TDRA table selection adaptive based on the minimum scheduling gap indicator. The UE dynamically switches between a restricted TDRA table (for power saving when larger gaps are indicated) and a full TDRA table (for scheduling flexibility when smaller gaps are indicated). This dynamic adaptation allows the system to optimize between power consumption and scheduling options based on real-time conditions.
3Use of energy by moving object
If minimum scheduling gap is increased for power saving, then UE processing time is reduced, but latency performance deteriorates
Solution Approach 1:
The patent applies partial action by having the UE perform processing only when necessary. Based on the minimum scheduling gap indicator, the UE partially processes the scheduling information - using a restricted TDRA table when larger gaps are indicated (reducing processing power consumption) and using the full TDRA table when smaller gaps are indicated (maintaining processing completeness for latency-critical scenarios). This partial action approach resolves the contradiction between processing power saving and time performance.
Data Source
AI summary
The present disclosure provides a transceiver device, comprising a transceiver, which in operation, receives data after receiving a scheduling grant; and circuitry, which in operation, determines whether or not to apply a restriction to a time domain resource allocation, TDRA, table according to a minimum scheduling gap, wherein the determination includes a determination of whether or not a common TDRA table is configured.