Logical Tone Index Mapping for Wireless Resource Blocks
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently allocating and managing tone indices for resource blocks in wireless networks, leading to suboptimal data transmission and reception due to the lack of effective logical tone index mapping techniques.
Innovation Solution
The implementation of a wireless device and method that logically maps a set of nominal tone indices to a set of physical tone indices using bit reversal or interleaver matrix functions, allowing for efficient allocation and reordering of data packets across tone indices, thereby optimizing resource block utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If tone indices are allocated directly without logical mapping, then the allocation process is simple, but data transmission efficiency is suboptimal due to improper ordering of data packets
Solution Approach 1:
The patent applies preliminary action by pre-establishing logical tone index mapping relationships before data transmission. The access point pre-determines the correspondence between nominal tone indices and physical tone indices, and pre-orders data packets according to this mapping. This ensures that data packets are properly ordered before transmission, improving transmission efficiency without adding complex real-time processing during actual data transfer.
Solution Approach 2:
The patent introduces an intermediary logical tone index mapping layer between the nominal tone indices and physical tone indices. This mapping layer acts as a mediator that translates between the simplified nominal indices used for allocation and the actual physical indices used for transmission. The intermediary mapping table stores the correspondence relationships, allowing efficient translation without direct complex calculations during data transmission.
2Productivity
If resource blocks are allocated without logical tone index mapping, then the allocation process is straightforward, but resource block utilization is suboptimal
Solution Approach 1:
The access point performs preliminary logical tone index mapping when allocating resource blocks. It pre-determines which nominal tone indices should map to which physical tone indices based on the resource block allocation, and pre-orders the data packets accordingly. This preliminary arrangement optimizes resource block utilization by ensuring proper tone index assignment before actual transmission occurs.
Solution Approach 2:
The patent changes the parameter representation of tone indices by introducing a mapping relationship between nominal and physical tone indices. Instead of using raw physical tone indices directly, the system transforms them through a logical mapping function that optimizes resource allocation. This parameter transformation allows for more flexible and efficient resource block utilization while maintaining a manageable level of complexity through systematic mapping rules.
3Reliability
If direct tone index assignment is used, then the system is easier to operate, but data packet ordering is incorrect leading to transmission errors
Solution Approach 1:
The patent introduces a logical tone index mapping table as an intermediary structure that ensures correct data packet ordering. This mapping table stores the correspondence between nominal tone indices and physical tone indices, acting as a reference that guides proper packet ordering. The intermediary mapping mechanism ensures transmission reliability by preventing ordering errors, while the systematic structure of the mapping table keeps the operation manageable through predefined relationships.
Solution Approach 2:
The system performs preliminary ordering of data packets based on the logical tone index mapping before transmission. By pre-establishing the correct order of data packets according to the mapping relationships, the system ensures that packets will be transmitted in the correct sequence. This preliminary action prevents transmission errors that would occur with direct assignment, while the pre-computed mapping reduces the operational complexity during actual transmission.
Data Source
AI summary
A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus includes a processor configured to allocate a plurality of resource blocks for wireless communication. The processor is further configured to transmit data on a first resource block of the plurality of resource blocks, in which the first resource block is associated with a first set of tone indices and a second set of tone indices, and the first set of tone indices is a set of nominal tone indices that is logically mapped to a second set of tone indices that is a set of physical tone indices.