SoftBank Group has been granted a patent for a base station device that optimizes handover (HO) processes for user terminals. The device selects between two schemes for HO, one using a neighbor relation table (NRT) and one without, based on received measurement reports. The HO control unit manages the handover process accordingly. GlobalData’s report on SoftBank Group gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on SoftBank Group, Track and trace supply chains was a key innovation area identified from patents. SoftBank Group's grant share as of January 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Base station device for handover control in wireless communication
A recently granted patent (Publication Number: US11889365B2) discloses a base station device designed to enhance handover (HO) procedures in wireless communication networks. The device includes a storage unit for storing a neighbor relation table, a scheme selection unit that chooses between two HO schemes based on the presence of the physical cell identifier in the table, and an HO control unit that manages the handover process accordingly. When the first scheme is selected, the user terminal measures system information of an HO candidate cell, while the second scheme involves checking the neighbor relation table for the physical cell identifier. The device also allows for different scheme selections based on the connected business operator and frequency considerations.
Moreover, the patent extends to a flight vehicle equipped with the base station device, enabling the formation of a cell on the ground to provide wireless communication services to user terminals within the cell. Additionally, a non-transitory computer-readable medium is included, storing a program that transforms a computer into a base station device with similar functionalities for optimizing handover processes. A control method executed by the base station device is also detailed, outlining the selection of HO schemes and the subsequent control of handover procedures based on the presence of cell identifiers in the neighbor relation table. These innovations aim to streamline handover operations in wireless networks, particularly in scenarios involving multiple business operators and varying frequencies of candidate cells.
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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.
