Base Station Beam Search Using Simultaneous Multi-Directional Beams
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Solution Overview
Problem
Existing wireless communication systems require time-consuming beam scanning to identify communication terminals, leading to inefficiencies in terminal search processes.
Innovation Solution
A base station and communication terminal that simultaneously transmit multiple searching radio beams in different directions, allowing for efficient terminal identification and communication setup through simultaneous reception and direction identification processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station scans beams sequentially to search for terminals, then the beam direction can be precisely controlled, but the terminal search time increases
Solution Approach 1:
The patent segments the beam search process by dividing the spatial search space into multiple directional sectors. Instead of scanning the entire space sequentially, the base station transmits multiple searching radio beams simultaneously in different directions, effectively parallelizing the search process while maintaining precise directional control in each sector
Solution Approach 2:
The patent applies preliminary action by pre-configuring multiple searching radio beams with different directions before the terminal search begins. The base station prepares and transmits these beams simultaneously, eliminating the sequential scanning delay and reducing terminal search time without sacrificing directional precision
2Productivity
If multiple searching radio beams are transmitted simultaneously in different directions, then the terminal search efficiency improves, but the system complexity increases
Solution Approach 1:
The patent applies universality by designing the antenna system to perform multiple functions: it can transmit multiple searching radio beams simultaneously in different directions, receive radio waves from terminals, and switch to communication mode. This multi-functionality enables efficient terminal search without requiring separate dedicated hardware for each function, thereby limiting the increase in system complexity
3Device complexity
If the base station uses a single beam for communication, then the device complexity is low, but the terminal search time increases
Solution Approach 1:
The patent applies dynamics by making the antenna system dynamically switchable between different operational modes. The antenna can dynamically transition from transmitting multiple searching radio beams simultaneously to transmitting a single communication radio beam once a terminal is identified. This dynamic adaptability allows the system to reduce terminal search time during the search phase while maintaining relatively simple device complexity during the communication phase
Data Source
AI summary
Provided is a base station including: an antenna that emits at least one searching radio beam for searching for a communication terminal and a communication radio beam for communicating with a communication terminal; and at least one processor that executes a transmission process of simultaneously transmitting, from the antenna, a plurality of searching radio beams that are oriented in directions which are different from each other, a reception process of receiving radio waves transmitted from a communication terminal in accordance with the plurality of searching radio beams simultaneously transmitted in the transmission process, and a communication process of communicating, with use of the communication radio beam, with the communication terminal that transmitted the radio waves which were received in the reception process.