Wireless Access Station Signal Coordination Logic
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Solution Overview
Problem
Standard omni-directional wireless LANs and WANs face limitations such as restricted transmission range, unmanaged electromagnetic interference, network congestion, and increased packet collisions due to overlapping coverage areas, leading to inefficiencies.
Innovation Solution
Implementing a wireless access station with signal transmission/reception coordination logic that monitors access points to prevent signal transmission when a signal is being received, using multiple access points and medium access controller coordination to manage uplink and downlink signals, thereby reducing collisions and improving network efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple access points transmit signals simultaneously in overlapping coverage areas, then network coverage and capacity are improved, but signal collisions and electromagnetic interference increase
Solution Approach 1:
The coordination mechanism uses feedback from receive indicators of multiple baseband units to control transmission decisions of multiple access points. The MAC controller coordination logic monitors reception status and adjusts transmission timing accordingly, creating a closed-loop control system that prevents collisions while maintaining coverage.
Solution Approach 2:
The system performs preliminary coordination by combining receive indicators from multiple baseband units before transmission occurs. The MAC controller uses this combined information to preemptively prevent transmission that would cause interference, ensuring clean signal reception before the actual data transmission takes place.
2Speed
If access points transmit without coordination, then transmission speed and network throughput are improved, but packet collision probability increases
Solution Approach 1:
The MAC controller coordination logic acts as an intermediary between multiple baseband units and access points. It combines receive indicators from multiple sources and uses this coordinated information to control transmission timing, mediating between the desire for high-speed transmission and the need for collision-free communication.
3Device complexity
If multiple access points operate independently, then device complexity is reduced and ease of operation is improved, but network congestion and interference management become uncontrolled
Solution Approach 1:
The patent merges the control functions of multiple access points through a centralized MAC controller coordination logic. By combining receive indicators from multiple baseband units into a unified control decision, the system maintains simple individual access point operation while achieving coordinated network-wide interference management through the merged control information.
Data Source
AI summary
An exemplary access station for wireless communications includes: a wireless input/output unit that is configured to establish multiple access points; and signal transmission/reception coordination logic that is capable of ascertaining that an access point of the multiple access points is receiving a signal and that is adapted to restrain at least one other access point of the multiple access points from transmitting another signal responsive to the ascertaining that the access point is receiving the signal. An exemplary method includes: monitoring multiple respective indicators acquired from multiple respective baseband units; detecting whether at least one respective indicator of the multiple respective indicators is affirmatively indicating that a signal is being received; and if so, providing at least one instruction to at least two medium access controllers of multiple respective medium access controllers, the at least one instruction restraining the at least two medium access controllers from causing a transmission.