Uplink Control Resource Allocation for Balanced UCI and Data
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Solution Overview
Problem
In LTE, the allocation of resources for uplink control information (UCI) and data transmission is inadequate, particularly in NR where the increased number of UCI bits can lead to all resources being allocated to UCI, preventing data transmission.
Innovation Solution
A method to determine resource allocation for UCI based on the ratio of UCI bits to data bits, using parameters such as β and α, ensuring sufficient resources are allocated to both UCI and data, employing formulas to balance resource distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource allocation is based solely on UCI bit quantity in NR, then UCI transmission reliability is improved, but data transmission is prevented due to all resources being allocated to UCI
Solution Approach 1:
The patent introduces parameters β and α to dynamically adjust the resource allocation ratio between UCI and data. By changing these parameters, the system can adapt resource distribution based on transmission conditions, ensuring both UCI reliability and data transmission capability are maintained.
Solution Approach 2:
The resource allocation is made dynamic rather than static. The patent calculates the ratio of UCI bits to data bits and uses this ratio along with parameters β and α to determine the actual resource allocation, allowing the system to adapt to varying transmission conditions and prevent extreme cases where all resources are allocated to UCI.
2Productivity
If resource allocation balances UCI and data proportionally, then both can be transmitted, but UCI transmission reliability may be insufficient when UCI bit quantity is large
Solution Approach 1:
The patent uses parameter β to weight the UCI resource allocation, giving it higher priority when needed. The formula Q' = ceil(β * O / (β * O + (1-α) * B)) allows UCI to receive sufficient resources even when its bit quantity is large, while still allowing data transmission.
Data Source
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AI summary
An uplink control information transmission method and apparatus are provided. The method includes: determining, by a terminal device based on first information, a quantity of resources for sending UCI, where the first information includes any one of the following information combinations: a combination of scheduling information, a ratio of a quantity of bits of the UCI to a sum of the quantity of bits of the UCI and a quantity of bits of data, a first preset parameter, a parameter β, and a quantity of available resources of a PUSCH; a combination of scheduling information, a first preset parameter, a parameter β, a quantity of available resources of a PUSCH, and a code rate of scheduled data; or a combination of scheduling information, a ratio of a quantity of bits of the UCI to a quantity of bits of data, a first preset parameter, a parameter β, a quantity of available resources of a PUSCH, and a parameter α; and sending, by the terminal device, the UCI to a network device based on the determined quantity of resources for sending the UCI. Because the terminal device uses the ratio of the quantity of bits of the UCI to the quantity of bits of the data as a proportion baseline for resource division when determining the quantity of resources for sending the UCI, a case in which all resources are allocated to the UCI during initial transmission and the data cannot be transmitted can be avoided.