Wireless Data Duplication Across Multiple Radio Bearers
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Solution Overview
Problem
Current wireless communication systems face challenges in ensuring high reliability and low latency for data transmission, particularly in supporting increased data traffic and a large number of connected devices, with existing technologies lacking effective methods for duplicating and configuring data transmission across multiple cells and carriers.
Innovation Solution
A method and device for redundantly transmitting data by generating duplicate data at a specific layer of a transmitting device, using multiple radio bearers and cells, and configuring logical paths with separate identifiers, allowing for efficient processing and recovery of data at the receiving device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted through multiple component carriers or cells, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments data transmission into multiple parallel paths by creating duplicate data copies that are transmitted through different component carriers or cells. Each copy follows an independent transmission path, allowing the system to achieve redundancy without requiring a single complex unified mechanism. The segmentation is implemented at the data layer where copies are generated and then distributed across multiple carriers.
Solution Approach 2:
The patent applies copying by generating duplicate data copies from the original data before transmission. These copies are then transmitted through multiple component carriers or cells simultaneously. The copying mechanism creates identical data instances that can be received and reassembled at the destination, providing reliability through redundancy without requiring complex error correction codes.
2Reliability
If duplicate data is transmitted through multiple radio bearers, then data transmission reliability is improved, but loss of information increases due to redundant data
Solution Approach 1:
The patent implements feedback mechanisms where the receiving device sends acknowledgment signals back to the transmitting device. When the receiver confirms successful reception of data through one or more radio bearers, the transmitter uses this feedback to stop sending duplicate copies. This feedback loop prevents unnecessary information loss by eliminating redundant transmissions once success is confirmed.
Solution Approach 2:
The patent applies discarding and recovering by having the receiving device selectively process received data copies. When multiple copies are received through different radio bearers, the receiver discards the redundant copies after successfully recovering the original data from at least one copy. This ensures that only necessary data is retained while unnecessary duplicates are discarded, optimizing information efficiency.
3Reliability
If data duplication is performed at a specific layer, then data transmission reliability is improved, but processing time increases
Solution Approach 1:
The patent applies preliminary action by performing data duplication at a specific layer (such as the MAC layer or above) before the data enters the transmission path. This preliminary duplication occurs in advance, allowing the transmission system to prepare multiple copies simultaneously rather than creating them during transmission. The preliminary action enables parallel processing and reduces overall processing time while maintaining reliability.
Solution Approach 2:
The patent implements dynamics by making the data duplication process adjustable and flexible. The system can dynamically control whether duplication occurs, how many copies are created, and at which layer, based on real-time conditions such as network status and reliability requirements. This dynamic approach allows the system to optimize between processing time and reliability by adapting the duplication behavior to current operational conditions.
Data Source
AI summary
The present invention relates to a method and a device for transmitting and receiving data by a terminal in a wireless communication system. The present invention can provide a method and a device configured to: generate at least one duplicated data according to the number of multiple radio bearers by using specific data in a first layer of a transmitting device; transmit the specific data and the at least one duplicated data to a receiving device on multiple cells associated with the multiple radio bearers; and when receiving, from the receiving device, an ACK indicating the success of reception of the specific data and the at least one duplicated data, instruct to stop transmission of the specific data and the at least one duplicated data from the first layer to a second layer, wherein the multiple radio bearers are instructed, by a bearer identifier, to transmit the duplicated data.