Multi-Carrier DCI Bit Allocation for Frequency Resource Scheduling
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Solution Overview
Problem
There is currently no specific solution for how a DCI for multi-carrier scheduling indicates frequency-domain resource allocation of one or more carriers.
Innovation Solution
A method and apparatus for determining frequency-domain resource allocation granularity for each carrier in multi-carrier scheduling, using the number of physical resource blocks (PRBs) of a bandwidth part (BWP) or higher-layer parameter configuration, to determine the quantity of bits in the DCI indication field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If one DCI is used to schedule multiple carriers, then control signaling overhead is reduced, but the complexity of indicating frequency-domain resource allocation increases
Solution Approach 1:
The patent segments the frequency-domain resource allocation indication by determining different quantities of bits for each carrier based on their respective frequency-domain resource allocation granularities. This allows the DCI to efficiently indicate resource allocation for multiple carriers with varying bandwidths by allocating bit resources proportionally to each carrier's needs, thereby reducing overall control signaling overhead while maintaining indication precision.
Solution Approach 2:
The patent changes the parameter of frequency-domain resource allocation granularity for each carrier and determines the quantity of bits in the indication field based on these granularities. By dynamically adjusting the bit allocation according to each carrier's granularity requirements, the system achieves compact representation of frequency-domain resources across multiple carriers, resolving the contradiction between overhead reduction and indication complexity.
2Productivity
If frequency-domain resource allocation is indicated for multiple carriers in one DCI, then scheduling efficiency is improved, but the DCI size may exceed the 164-bit limit
Solution Approach 1:
The patent determines the quantity of bits for frequency-domain resource allocation indication of each carrier based on its frequency-domain resource allocation granularity. By dynamically adjusting bit allocation according to each carrier's bandwidth and granularity requirements, the total DCI size is optimized to remain within the 164-bit limit while maintaining efficient multi-carrier scheduling capability.
Solution Approach 2:
The patent applies partial action by allocating bit resources for frequency-domain resource allocation proportionally to each carrier's actual needs based on granularity, rather than using a fixed uniform allocation. This ensures that the DCI size remains compact and within limits while still providing sufficient indication capability for all scheduled carriers.
Data Source
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AI summary
Provided are an information processing method and apparatus, a terminal and a network device, which relates to the technical field of communications. The method includes: receiving, by a terminal, downlink control information (DCI) sent by a network device, where the DCI includes a first indication field for indicating frequency-domain resource allocation of at least one carrier; determining, by the terminal, a frequency-domain resource allocation granularity corresponding to each carrier in the at least one carrier; and determining, by the terminal, a quantity of bits corresponding to each carrier in the first indication field based on the frequency-domain resource allocation granularity corresponding to each carrier.