Infrastructure Equipment Group Identifier Bandwidth Reduction
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Solution Overview
Problem
Existing mobile communication systems face challenges in efficiently utilizing radio communications bandwidth and core network resources, particularly for machine-type communications (MTC) which involve sporadic and small data transmissions.
Innovation Solution
The solution involves infrastructure equipment for mobile radio networks that groups associated communications devices under a common identifier, allowing them to share control plane signaling and reduce bandwidth usage. This equipment includes a transmit and receive unit and a controller that processes resource requests, enabling efficient communication by acting as if all devices in the group are a single entity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each communications device uses individual identifiers and establishes separate control plane signaling, then device identification and communication are reliable, but bandwidth usage and signaling overhead increase significantly
Solution Approach 1:
The patent merges multiple communications devices into a group identified by a common group identifier. The infrastructure equipment maintains a mapping between group identifiers and individual device identifiers, allowing control plane signaling to be broadcast to the group rather than individually addressed to each device. This combining approach reduces bandwidth consumption while maintaining reliable device identification through the mapping mechanism.
2Measurement precision
If control plane signaling is broadcast to each device individually, then signaling precision and device-specific control are improved, but bandwidth overhead increases proportionally with the number of devices
Solution Approach 1:
The patent combines multiple device identifiers under a single group identifier for control plane signaling. The infrastructure equipment maintains a mapping relationship that enables precise device identification when needed, while allowing efficient group-level broadcasting for general control signaling, thus reducing bandwidth overhead while preserving signaling precision when required.
Solution Approach 2:
The group identifier acts as an intermediary between the control plane signaling and individual device identifiers. The infrastructure equipment uses this intermediary to receive control plane data addressed to the group, then distributes it appropriately to individual devices using the mapping information, reducing direct signaling overhead while maintaining precise device control when needed.
3Loss of energy
If a common group identifier is used for multiple devices, then bandwidth efficiency and signaling overhead reduction are improved, but individual device identification and addressing become more complex
Solution Approach 1:
The patent introduces a mapping mechanism as an intermediary layer between group identifiers and individual device identifiers. The infrastructure equipment maintains this mapping information, allowing efficient group-level addressing using simple common identifiers while preserving the ability to identify and address individual devices when needed, thus managing complexity centrally rather than at each device.
Data Source
AI summary
An infrastructure equipment for forming part of a mobile radio network includes a transmit and receive unit, to transmit and receive data to and from mobile communications devices via a wireless access interface, and a controller processing requests for communications resources from the mobile communications devices. Plural associated communications devices are arranged to form a group, and each of the associated communications devices of the group includes a same common identifier, with respect to which communications sessions can be established to communicate data via the mobile radio network, and the controller is arranged in combination with the transmit and receive unit to respond to a request from one of the communications devices of the group to establish a communications bearer using the common identifier.