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SamsungGranted patentNetworks & wirelessInterest 4/10

Samsung patents method to keep video streams stable during cell handovers

Patent drawing
Patent drawing from the official filing.

This patent describes a method for electronic devices to manage wireless connections while receiving multicast data, such as live video broadcasts. The device checks if nearby cells support this broadcast service before reporting them to the network, preventing interruptions in the data stream.

Why it mattersThis improves the reliability of live streaming services on mobile devices by ensuring the phone only switches to cells that can continue the broadcast.

In the filing’s own words

A device and a method for performing wireless communication based on a multicast mode in an electronic device are provided. The electronic device includes a communication circuit, a memory, and at least one processor, wherein the at least one processor may receive data from a first cell supporting the multimedia broadcast multicast service (MBMS) through the communication circuit, based on a multicast mode, may detect a second cell, based on channel state information about the first cell, may perform a measurement report related to the second cell when the second cell is included in the MBMS support list, and may restrict the measurement report related to the second cell when the second cell is included in the MBMS nonsupport list.

What exactly they claim (claim 1)

1. An electronic device comprising: a communication circuit; memory storing instructions and information related to a multimedia broadcast multicast service (MBMS) support list comprising information related to at least one cell supporting an MBMS and an MBMS nonsupport list comprising information related to at least one cell not supporting the MBMS; and at least one processor communicatively coupled to the communication circuit and the memory, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to: receive data from a first cell supporting the MBMS through the communication circuit, based on a multicast mode, detect a second cell different from the first cell by performing a scan in response to channel state information of the first cell being equal to or less than a first reference value, determine whether the second cell is included in the MBMS support list or the MBMS nonsupport list, when the second cell is included in the MBMS support list, perform a measurement report related to the second cell, when the second cell is included in the MBMS nonsupport list: identify channel state information of the first cell, restrict the measurement report related to the second cell in response to the identified channel state information of the first cell being greater than a second reference value, and perform the measurement report related to the second cell in response to channel state information of the first cell being equal to or less than the second reference value, and based on a determination that the second cell is not included in the MBMS support list and the MBMS nonsupport list, perform the measurement report related to the second cell.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Electronic device for performing wireless communication based on multicast mode and operating method thereof
Patent number
US12772119B2
Application number
18509893
Filed
Nov 15, 2023
Granted
Oct 20, 2026
Inventors
2
Claims
9

Classified under

H04W 36/0007 Electricity & electronicsH04W 36/0058 Electricity & electronicsH04W 36/00835 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.