AILC Bit Configuration for Local Cache Data Routing
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting and receiving data, particularly in selecting the optimal cell from neighboring cells, which affects data transmission rates and network performance, especially in IoT environments where high data rates and low latency are critical.
Innovation Solution
A method and apparatus for configuring an assistance information bit for local cache (AILC) in a wireless communication system, allowing a terminal to selectively transmit data to a local cache by configuring AILC bits based on the type of data radio bearer and sequence number, enabling efficient data processing and cell reselection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data is transmitted through traditional network paths without local cache, then network coverage and connectivity are maintained, but data transmission rate and latency are degraded
Solution Approach 1:
A local cache is introduced as an intermediary component between the user equipment and the core network. The local cache stores frequently accessed data locally, allowing user equipment to retrieve data without traversing the entire network path, thereby improving transmission speed while maintaining network architecture simplicity through targeted local storage rather than comprehensive network redesign
2Productivity
If a fixed cell selection method is used, then cell reselection overhead is reduced, but data transmission efficiency in varying signal conditions deteriorates
Solution Approach 1:
The cell selection method is made dynamic by continuously monitoring signal quality metrics and automatically switching between cells based on real-time conditions. The system dynamically adjusts cell selection decisions to optimize data transmission efficiency while minimizing reselection time through adaptive response to changing radio environment
Solution Approach 2:
A feedback mechanism is implemented where the system continuously monitors transmission performance and signal quality, then uses this feedback to make informed cell reselection decisions. The feedback loop enables the system to learn from past performance and optimize future cell selections, improving overall transmission efficiency while reducing unnecessary reselection operations
3Loss of information
If assistance information bit configuration is simplified, then signaling overhead is reduced, but data routing precision through local cache deteriorates
Solution Approach 1:
The assistance information bit configuration is segmented into multiple fields, each serving a specific routing function. This segmentation allows the system to convey precise routing information through organized, modular bit fields that can be processed efficiently by both the transmitting and receiving equipment, maintaining routing precision while managing configuration complexity through structured design
Data Source
AI summary
The present disclosure relates to a method and apparatus for transmitting and receiving data in a wireless communication system. A method, performed by a terminal dual-connected to a master base station and a secondary base station in a wireless communication system, of configuring an assistance information bit for local cache (AILC) bit includes receiving, from the master base station, a radio resource control (RRC) reconfiguration message including AILC bit configuration information (ailc-BitConfig), configuring an AILC bit of a packet data convergence protocol (PDCP) data packet data unit (PDU) based on at least one of a terminating base station of a data radio bearer (DRB) through which the PDCP data PDU is transmitted, whether the PDCP data PDU includes a service data unit (SDU) to be transmitted to a local cache, whether the DRB is configured with evolved universal terrestrial radio access (E-UTRA) PDCP or New Radio (NR) PDCP, or a PDCP sequence number (SN) of the PDCP data PDU, and transmitting, to the terminating base station, the PDCP data PDU in which the AILC bit is configured.