Kronecker-Product Preamble and PUCCH Sequences for Uplink Capacity
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Solution Overview
Problem
Existing communication systems face challenges in efficiently utilizing a limited number of preamble and PUCCH sequences, leading to difficulties in meeting communication requirements and affecting efficiency due to a small quantity of available sequences.
Innovation Solution
Generating preamble and PUCCH sequences using a Kronecker product of multiple vectors to increase the number of available sequences, enhancing communication efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a small quantity of preamble sequences and PUCCH sequences is used, then the system structure remains simple, but the communication efficiency and user capacity are insufficient
Solution Approach 1:
The patent segments the sequence generation process by using Kronecker products of multiple code sequences (first code sequence and second code sequence) to generate preamble sequences and PUCCH sequences. This segmentation allows the system to create a larger quantity of sequences from a smaller set of basic codes, thereby improving communication efficiency without proportionally increasing system complexity
Solution Approach 2:
The patent introduces a new dimension to sequence generation by using the Kronecker product operation, which combines code sequences in a multi-dimensional manner. This dimensional approach enables the system to expand the sequence space from a one-to-one mapping to a many-to-many mapping, significantly increasing the number of available sequences for communication
2Quantity of substance
If a limited number of sequences is used, then the system overhead is reduced, but the ability to satisfy communication requirements of large user bases is compromised
Solution Approach 1:
The patent merges multiple code sequences through the Kronecker product operation to generate a larger set of preamble and PUCCH sequences. By combining the first code sequence with the second code sequence in this mathematical operation, the system achieves multiplicative expansion of sequence quantity while maintaining manageable complexity through standardized operations
Solution Approach 2:
The patent changes the parameter of sequence generation by introducing the Kronecker product as a new operation mode. This parameter change enables the system to transform a limited set of basic code sequences into a comprehensive set of communication sequences through mathematical manipulation, thereby increasing quantity without linearly increasing complexity
Data Source
AI summary
An information transmission method and a communication apparatus are disclosed. A preamble sequence or a physical uplink control channel (PUCCH) sequence is generated by using a product (for example, a Kronecker product) of K vectors, where K is an integer greater than or equal to 2, and a preamble is sent based on the preamble sequence, or uplink control information is sent based on the PUCCH sequence. A quantity of generated preamble sequences or PUCCH sequences can be increased, to satisfy a communication requirement of a system, and improve communication efficiency. For example, for the preamble sequence, a quantity of users using the preamble sequence for access can be increased in a random access process. For the PUCCH sequence, a capability and reliability of transmitting the uplink control information through the PUCCH sequence.