Full-Duplex Base Station Selection Using MIB Duplex Signaling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently selecting a base station that supports a duplex mode matching the user equipment's service requirements, leading to unnecessary time delays and inefficiencies in service provision.
Innovation Solution
A method is introduced where a user equipment receives a Master Information Block (MIB) from a base station, transmits a Radio Resource Control (RRC) connection request, and determines whether the duplex mode supported by the base station matches its capabilities, allowing for efficient selection of a suitable base station based on duplex mode information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the user equipment performs cell search without duplex mode information, then it can find any base station, but it experiences unnecessary time delays and inefficiencies in selecting a suitable base station
Solution Approach 1:
The base station transmits duplex mode information in the MIB message before the UE performs cell search and connection establishment. This preliminary provision of duplex mode information allows the UE to filter and select compatible base stations earlier in the process, reducing time delays without significantly increasing complexity
Solution Approach 2:
The MIB message acts as an intermediary carrier that conveys duplex mode information from the base station to the UE. This intermediary mechanism enables efficient base station selection by providing the necessary filtering information without requiring complex direct negotiation protocols
2Productivity
If the base station provides duplex mode information in MIB, then the user equipment can efficiently select compatible base stations, but the MIB message structure becomes more complex
Solution Approach 1:
The duplex mode information is merged into the existing MIB message structure rather than being transmitted as a separate message. This combining approach provides the necessary information for efficient base station selection while leveraging the already-established MIB transmission mechanism, thus limiting the increase in overall system complexity
Solution Approach 2:
The MIB message is enhanced by adding duplex mode indicator parameters to its structure. This parameter extension allows the message to carry additional information needed for compatibility checking while maintaining the fundamental MIB structure and transmission protocol
3Reliability
If the user equipment checks duplex mode compatibility, then it ensures matching duplex modes with the base station, but the connection establishment process becomes more complex
Solution Approach 1:
The UE performs duplex mode compatibility checking using information received in the MIB message before initiating the full RRC connection establishment process. This preliminary filter prevents incompatible connection attempts, ensuring reliability while keeping the actual connection establishment process relatively simple for compatible devices
Data Source
AI summary
The present document discloses a method for transmitting and receiving data by user equipment in a wireless communication system, the method comprising the steps of: receiving a master information block (MIB) from a base station; transmitting a radio resource control (RRC) connection request to the base station on the basis of the MIB; and receiving, from the base station, a response to the RRC connection request, wherein the MIB includes information about one or more duplex modes supportable by the base station, and the RRC connection request includes information about a duplex mode supportable by the user equipment.