Configurable E-MBS Scheduling Intervals for Wireless Decoding

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Solution Overview

Problem

In the IEEE 802.16m standard, mobile stations must blindly decode each sub-frame for Enhanced-Multicast and Broadcast Service (E-MBS) data until they receive the E-MBS MAP, leading to unnecessary power and resource consumption due to the lack of indication of MSI duration changes.

Innovation Solution

The solution introduces dynamically configurable E-MBS Scheduling Intervals (MSIs) with varying periodicities, allowing mobile stations to decode the E-MBS MAP using nested periodicities and a modulo operation to efficiently determine the correct transmission instance, reducing overhead and complexity in decoding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mobile stations blindly decode each sub-frame for E-MBS data, then they can receive the E-MBS MAP, but power consumption and resource usage increase unnecessarily

Engineering Contradiction:

ImproveE-MBS MAP receptionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The base station transmits indication information about E-MBS MAP transmission timing in advance (in the MBS MAP message or system information blocks) before the mobile station needs to decode the E-MBS MAP. This preliminary action allows mobile stations to know when to expect the E-MBS MAP without having to blindly decode every sub-frame, thus reducing power consumption while ensuring reliable reception.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If mobile stations blindly decode each sub-frame for E-MBS data, then they can receive the E-MBS MAP, but decoding complexity and processing resources increase

Engineering Contradiction:

ImproveE-MBS MAP receptionVSAvoiddecoding complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The base station provides advance indication information about E-MBS MAP transmission timing through MBS MAP messages or system information blocks. This preliminary information allows mobile stations to calculate the exact sub-frames containing E-MBS MAP using modulo operations, eliminating the need for blind decoding of all sub-frames and significantly reducing processing complexity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Mobile stations use the indication information and their own timing knowledge to self-determine when E-MBS MAP is transmitted without requiring complex blind decoding procedures. The mobile station independently calculates the correct sub-frame using the provided periodicity and offset information, making the system self-sufficient and reducing processing burden.

Inventive Principle:

Principle #25Self-service

3Ease of manufacture

If fixed MSI duration is used for E-MBS transmission, then implementation is simple, but adaptability to changing transmission scenarios is reduced

Engineering Contradiction:

Improveimplementation simplicityVSAvoidtransmission scenario adaptability

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The system allows dynamic configuration of E-MBS MAP transmission timing through indication information that can be updated in MBS MAP messages or system information blocks. The mobile station receives current transmission timing information and adjusts its decoding schedule accordingly, enabling the system to adapt to changing scenarios while maintaining relatively simple implementation through standardized modification procedures.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP2471198B1Methods for efficient configuration of control channel transmission in wireless systems

Publication Date: 2022.09.28 SAMSUNG ELECTRONICS CO LTD

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AI summary

An apparatus and method for configuring Enhanced Multicast and Broadcast Service (E-MBS) Scheduling Intervals (MSIs) in a communication system are provided. The method includes selecting a number N of MSIs, and selecting a periodicity of each of the N MSIs. By selecting a number N of MSIs and a periodicity of each of the N MSIs, a communication system is able to more efficiently decode E-MBS data.