Wireless Address Assignment via Time-Division Multiplexing

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Solution Overview

Problem

The existing IEEE 802.16m based wireless communication systems face limitations in registering subscriber stations due to the limited number of unicast addresses available, particularly when dealing with a large number of machine-to-machine communication devices within a base station's coverage area.

Innovation Solution

A method and system that assign a unicast address along with a specific time duration to subscriber stations, allowing multiple non-legacy stations to share the same address based on unique time durations, and utilizing extended Station Identifiers (STIDs) to increase the address space, enabling more efficient registration and communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a base station uses traditional unicast address assignment (12 bit STID) to register subscriber stations, then each subscriber station can be uniquely identified, but the base station can only register up to 4096 subscriber stations

Engineering Contradiction:

Improvenumber of registered subscriber stationsVSAvoidaddress space limitation

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent introduces a time dimension to the address assignment by assigning specific time durations to unicast addresses. This allows the same unicast address to be reused for different subscriber stations at different time intervals, effectively increasing the number of registerable subscriber stations beyond the traditional 4096 limit without requiring additional address bits

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent implements dynamic address assignment where unicast addresses are allocated with specific time durations and can be reused after the time duration expires. This dynamic approach allows the address space to serve more subscriber stations over time, transforming the static address limitation into a dynamic resource that can accommodate growing numbers of devices

Inventive Principle:

Principle #15Dynamics

2Quantity of substance

If the base station increases the unicast address space to support more than 4096 subscriber stations, then more devices can be registered, but the system complexity and resource overhead increase

Engineering Contradiction:

Improvenumber of registerable devicesVSAvoidaddress management complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent implements periodic address reuse by assigning time durations to unicast addresses. Addresses are reused in periodic cycles after their assigned time duration expires, allowing the system to support more devices without expanding the address space. This periodic action maintains address management simplicity while increasing device capacity

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS9480049B2Method and system for assigning addresses to subscriber stations in a wireless communication environment

Publication Date: 2016.10.25 SAMSUNG ELECTRONICS CO LTD

AI summary

A system and a method for assigning addresses to subscriber stations in a wireless communication environment are provided. The method includes receiving a request to register with a wireless communication network from a subscriber station, assigning a unicast address and at least one specific time duration to a subscriber station for communication with a network entity in the wireless communication network during registration process, and communicating the unicast address and the at least one specific time duration to the subscriber station, wherein the assigned unicast address is valid for the subscriber station during the at least one specific time duration.