Vodafone Group has been granted a patent for a method that allows a station to communicate simultaneously over two different radio access networks, FDD and TDD, by aligning the timing of transmissions to reduce interference. The method involves adjusting the timing of Receipt Acknowledgement messages to ensure efficient communication. GlobalData’s report on Vodafone Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Vodafone Group, Perimeter security was a key innovation area identified from patents. Vodafone Group's grant share as of February 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.

Method for simultaneous communication over fdd and tdd networks

Source: United States Patent and Trademark Office (USPTO). Credit: Vodafone Group Plc

A recently granted patent (Publication Number: US11903005B2) discloses a method for operating a station to enable simultaneous communication over two different Radio Access Networks (RANs) using different carrier signals. The method involves aligning the timing of transmissions from the station over the first Frequency Division Duplex (FDD) RAN to match the timing for transmissions over the second Time Division Duplex (TDD) RAN. This alignment is achieved by delaying or advancing Receipt Acknowledgement message transmissions in the first RAN compared to a fixed timing, allowing for efficient communication without interference.

Furthermore, the patent describes the configuration of the station for Carrier Aggregation (CA) or Dual Connectivity (DC) functionality, where a control signal instructs the station to align the timing of transmissions between the two RANs. The method also addresses harmonic interference caused by transmissions on the first carrier signal to reception on the second RAN, with the frequency of the second carrier signal being a harmonic of the first carrier signal. The patent covers various scenarios involving different Radio Access Technologies (RATs) and provides a detailed process for configuring the station for optimal simultaneous communication over the two RANs.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.