Method and system for handling wireless communication in voice over wireless fidelity system

Patent metadata

Field	Value
Publication number	US-2019037465-A1
Application number	US-201816047777-A
Country	US
Kind code	A1
Filing date	Jul 27, 2018
Priority date	Jul 28, 2017
Publication date	Jan 31, 2019
Grant date	—

Abstract

A method and system for handling a wireless communication in a Voice over Wireless Fidelity (VoWiFi) system including a plurality of nodes is provided. The method includes detecting, by a VoWiFi controller, a wireless connection between an electronic device and a first node from among the plurality of nodes; determining, by the VoWiFi controller, a performance of each of the plurality of nodes; detecting, by the VoWiFi controller, that a first performance of the first node is less than a second performance of a second node from among the plurality of nodes; and performing, by the VoWiFi controller, a handover of the electronic device from the first node to the second node.

First claim

What is claimed is:

1 . An electronic device for handling a wireless communication in a Voice over Wireless Fidelity (VoWiFi) system comprising a plurality of nodes, the electronic device comprising:
a memory; a processor; and a VoWiFi controller coupled to the memory and the processor, then VoWiFi controller being configured to:
detect a wireless connection between the electronic device and a first node from among the plurality of nodes,
determine a performance of each of the plurality of nodes,
detect that a performance of the first node is less than a performance of a second node from among the plurality of nodes, and
perform a handover of the electronic device from the first node to the second node.

2 . The electronic device of claim 1 , wherein the VoWiFi controller is further configured to perform the handover by:
detecting an Internet protocol security (IPSec) tunnel between the electronic device and a wireless interface associated with the first node; preserving the IPSec tunnel for a time period; and performing the handover by switching the electronic device from the first node to the second node by transferring the preserved IPSec tunnel from the wireless interface associated with the first node to a wireless interface associated with the second node.

3 . The electronic device of claim 2 , wherein the VoWiFi controller is further configured to use routing commands to transfer the preserved IPSec tunnel from the wireless interface associated with the first node to the wireless interface associated with the second node.

4 . The electronic device of claim 2 , wherein the wireless interface associated with the first node is bounded to the wireless interface associated with the second node based on a Real-simultaneous dual-band (RSDB).

5 . The electronic device of claim 1 , wherein the first node is a Wi-Fi access point and the second node is a second Wi-Fi access point.

6 . The electronic device of claim 1 , wherein the first node is a Wi-Fi access point and the second node is a Long Term Evolution (LTE) access point.

7 . The electronic device of claim 1 , wherein the VoWiFi controller is further configured to determine the performance of each of the plurality of nodes by:
determining a Socio VoWiFi metric for each of the plurality of nodes based on a plurality of socio parameters associated with each of the plurality of nodes; and determining the performance of each of the plurality of nodes based on the Socio VoWiFi metric.

8 . The electronic device of claim 7 , wherein the plurality of socio parameters comprises social activities, connection status, quality parameters, and a growth poll period.

9 . The electronic device of claim 8 , wherein the social activities comprise a time of user activity, and a location of user activity.

10 . The electronic device of claim 1 , wherein the VoWiFi controller is further configured to determine the performance of each of the plurality of nodes by:
determining a Cross Layer Enhanced Handover (CLEH) metric for each of the plurality of nodes based on a plurality of CLEH parameters; and determining the performance of each of the plurality of nodes based on the CLEH metric.

11 . The electronic device of claim 10 , wherein the plurality of CLEH parameters comprises at least one of a Wi-Fi Received Signal Strength Indicator (RSSI), a Long Term Evolution (LTE Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and an Internet Protocol (IP) Multimedia Subsystem (IMS) registration state.

12 . An electronic device for handling a wireless communication in a Voice over Wireless Fidelity (VoWiFi) system comprising a plurality of nodes, the electronic device comprising:
a memory; a processor; and a VoWiFi controller coupled to the memory and the processor, the VoWiFi controller being configured to:
detect a VoWiFi call between the electronic device and a first node from among the plurality of nodes,
determine that a handover of the electronic device from the first node to a second node from among the plurality of nodes needs to be performed to avoid a VoWiFi call drop, and
perform the handover of the electronic device from the first node to the second node.

13 . The electronic device of claim 12 , wherein the VoWiFi controller is further configured to determine that the handover needs to be performed by:
determining a performance of each of the plurality of nodes; and detecting that a performance of the first node is less than a performance of the second node.

14 . The electronic device of claim 12 , wherein the VoWiFi controller is further configured to perform the handover by:
detecting an Internet protocol security (IPSec) tunnel between the electronic device and a wireless interface associated with the first node; preserving the IPSec tunnel for a time period; and performing the handover by switching from of the electronic device from the first node to the second node by transferring the preserved IPSec tunnel from the wireless interface associated with the first node to a wireless interface associated with the second node.

15 . The electronic device of claim 14 , wherein the VoWiFi controller is further configured to transfer the preserved IPSec tunnel using routing commands.

16 . The electronic device of claim 14 , wherein the wireless interface associated with the first node is bounded to the wireless interface associated with the second node based on a Real-simultaneous dual-band (RSDB).

17 . The electronic device of claim 13 , wherein the VoWiFi controller is further configured to determine the performance of each of the plurality of nodes by:
determining a Socio VoWiFi metric for each of the plurality of nodes based on a plurality of socio parameters associated with each of the plurality of nodes; and determining the performance of each of the plurality of nodes based on the Socio VoWiFi metric.

18 . The electronic device of claim 17 , wherein the plurality of socio parameters comprises social activities, connection status, quality parameters, and a growth poll period.

19 . The electronic device of claim 18 , wherein the social activities comprise time of user activity and location of user activity.

20 . The electronic device of claim 13 , wherein the VoWiFi controller is further configured to determine the performance of each of the plurality of nodes by:
determining a Cross Layer Enhanced Handover (CLEH) metric for each of the plurality of nodes based on a plurality of CLEH parameters; and determining the performance of each of the plurality of nodes based on the CLEH metric.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Srivastava Sandesh Kumar
• Natarajan Harikrishnan
• Diggi Suneel Kumar Parmeshwar
• Kim Hong-Shik
• Kanagarathinam Madhan Raj
• Atmakuri Siva Naga Kumar Venkata
• Kim Sung-In

Classifications

• H04W36/12

  Reselecting a serving backbone network switching or routing node · CPC title

• H04B17/382 Primary

  for resource allocation, admission control or handover · CPC title

• H04B17/318

  Received signal strength · CPC title

• H04W36/30 Primary

  by measured or perceived connection quality data · CPC title

• H04W36/302

  due to low signal strength · CPC title