Radio Resource Allocation via Segmented Scheduling Messages

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current radio resource allocation methods in cellular communication networks, such as HSDPA and LTE, require significant system resources for transmitting scheduling information frequently, which can lead to inefficient use of bandwidth and power, especially due to the need for robust transmission to ensure reliability.

Innovation Solution

The method generates correlated scheduling information for multiple mobile terminals, allowing the reduction of system resources needed for transmission by categorizing terminals based on their radio conditions and using differential encoding techniques like bitmap or codebook-based methods, where scheduling messages are transmitted with varying robustness levels and sizes based on terminal conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If scheduling information is transmitted frequently and robustly to ensure reliable reception, then the reliability of resource allocation is improved, but the consumption of system resources (bandwidth, power) increases

Engineering Contradiction:

Improvereliability of scheduling information receptionVSAvoidsystem resource consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments scheduling information into multiple parts: a first scheduling message containing scheduling information for a first terminal, and a second scheduling message containing scheduling information for a second terminal. The second message references resources already allocated in the first message, allowing terminals to reconstruct complete scheduling information by combining received messages. This segmentation reduces redundant information transmission while maintaining reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent uses a copying approach where the second scheduling message contains a reference or indicator to resources already described in the first scheduling message, rather than fully duplicating the resource description. Terminals copy the resource information from the first message context, reducing the amount of data that needs to be transmitted robustly while ensuring reliable resource allocation.

Inventive Principle:

Principle #26Copying

2Adaptability or versatility

If separate scheduling messages are sent to each terminal, then the adaptability to individual terminal conditions is improved, but the total amount of scheduling information to be transmitted increases

Engineering Contradiction:

Improveadaptability to terminal conditionsVSAvoidamount of scheduling information

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges scheduling information for multiple terminals by having the second scheduling message reference resources allocated in the first scheduling message. Instead of sending completely separate, independent scheduling messages to each terminal, the system combines information across messages, allowing terminals to reconstruct their complete scheduling information by combining the first and second messages. This reduces the total quantity of scheduling information while maintaining adaptability to individual terminal conditions.

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If transmission power and code rate are adapted dynamically for each terminal, then the efficiency of resource usage is improved, but the complexity of transmission control increases

Engineering Contradiction:

Improveefficiency of system resource usageVSAvoidcomplexity of transmission control

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic transmission control where the network node adapts transmission power and code rate based on terminal conditions. The system dynamically adjusts these parameters for different terminals and different scheduling messages, with terminals experiencing better radio conditions receiving less robust (lower power/code rate) transmissions. This dynamic adaptation improves productivity while the patent manages complexity through structured message formats and reference mechanisms.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS9020550B2Methods and apparatuses for radio resource allocation and identification

Publication Date: 2015.04.28 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

The present invention presents methods providing for system resource-efficient radio resource allocation of mobile terminals. The methods may include generating a first scheduling message including first scheduling information indicative of at least a first radio resource allocated to a first mobile terminal. The methods may also include generating a second scheduling message including second scheduling information, which, when combined with said first scheduling information, is indicative of a second radio resource allocated to a second mobile terminal. The methods may further include transmitting said first scheduling message to said first and second mobile terminals using a first robustness level, and transmitting said second scheduling message to said second mobile terminal using a second robustness level. Related network nodes and mobile terminals are also provided.