IP Library Granted Patent US 10,568,024
Granted Patent B2
US 10,568,024 · App. 15/869,855 · Granted Feb 18, 2020

Method for internet of things communication and an electronic device thereof

Inventors: Changwon Nam (Seoul, KR); Songyean Cho (Seoul, KR); Chaeman Lim (Seoul, KR)
Assignee: Samsung Electronics Co., Ltd.
H04W52/0203H04W48/16H04W36/14
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Quick Facts
Patent No.
US 10,568,024
App. No.
15/869,855
Granted
Feb 18, 2020
Kind
B2
Abstract

An example method for an electronic device includes determining, while accessing a first network supporting a first Radio Access Technology (RAT), to change a serving RAT to a second RAT, identifying a time interval in which the electronic device maintains an active state to communicate with the first network, scanning the second RAT during a period determined based on a start timing or an end timing of the time interval, and accessing a second network supporting the second RAT based on a result of the scanning.

Claims (67)

1. A method for an electronic device comprising:

determining, while accessing a first network supporting a first radio access technology (RAT), to change a serving RAT to a second RAT;

identifying a time interval in which the electronic device maintains an active state to communicate with the first network;

scanning the second RAT during a period determined based on a start timing or an end timing of the identified time interval; and

accessing a second network supporting the second RAT based on a result of the scanning,

wherein each of a bandwidth of the first RAT and a bandwidth of the second RAT is narrower than a bandwidth of a cellular network, and

wherein each of a sleep state of the first RAT and a sleep state of the second RAT is longer than a sleep state of the cellular network.

2. The method of claim 1 , wherein scanning the second RAT comprises:

waking-up at a timing before the start timing; and

scanning the second RAT within a period from the timing to the start timing.

3. The method of claim 2 , wherein the time interval comprises one of a period for receiving a paging message and a period for performing a tracking area update.

4. The method of claim 1 , wherein scanning the second RAT comprises scanning the second RAT within a period from a timing at which a reference time elapsed after receiving data from the first network to a timing for switching to an idle mode.

5. The method of claim 1 , wherein scanning the second RAT comprises:

scanning the second RAT on an operating frequency of the first network; and

based on the cell of the second RAT not being found on the operating frequency, scanning the second RAT on another frequency.

6. The method of claim 1 , wherein scanning the second RAT comprises:

scanning the second RAT; and

temporarily accessing the first network for attempting to receive data buffered in the first network.

7. The method of claim 6 , further comprising:

transmitting to a server, through the second network, information regarding a packet lastly received from the server.

8. The method of claim 6 , further comprising:

transmitting to a server, a message for notifying a change of a network through the first network, before accessing the second network.

9. The method of claim 6 , further comprising:

selecting the second RAT based on an application being executed and a state of a battery of the electronic device.

10. The method of claim 6 ,

wherein the first RAT and the second RAT are usable for providing internet of things (IoT) service.

11. An electronic device comprising:

a housing;

radio frequency (RF) circuitry, disposed within the housing, for processing a signal;

a processor, disposed within the housing, coupled to the RF circuitry; and

a memory, disposed within the housing, coupled to the processor,

wherein the memory stores instructions that, when executed, cause the processor to:

determine, while accessing a first network supporting a first radio access technology (RAT), to change a serving RAT to a second RAT;

identify a time interval in which the electronic device maintains an active state to communicate with the first network;

control scanning the second RAT during a period determined based on a start timing or an end timing of the identified time interval; and

control accessing a second network supporting the second RAT based on a result of the scan,

wherein each of a bandwidth of the first RAT and a bandwidth of the second RAT is narrower than a bandwidth of a cellular network, and

wherein each of a sleep state of the first RAT and a sleep state of the second RAT is longer than a sleep state of the cellular network.

12. The electronic device of claim 11 , wherein the memory stores instructions that, when executed, cause the processor to:

wake-up at a timing before the start timing; and

control scanning the second RAT within a period from the timing to the start timing.

13. The electronic device of claim 12 , wherein the time interval comprises one of a period for receiving a paging message and a period for performing a tracking area update.

14. The electronic device of claim 11 , wherein the memory stores instructions that, when executed, cause the processor to:

control scanning the second RAT within a period from a timing at which a reference time elapsed after receiving data from the first network to a timing for switching to an idle mode.

15. The electronic device of claim 11 , wherein the memory stores instructions that, when executed, cause the processor to:

control scanning the second RAT on an operating frequency of the first network; and

based on the cell of the second RAT not being found on the operating frequency, control scanning the second RAT on another frequency.

16. An electronic device comprising:

a housing;

radio frequency (RF) circuitry, disposed within the housing, for processing a signal;

a processor, disposed within the housing, coupled to the RF circuitry; and

a memory, disposed within the housing, coupled to the processor,

wherein the memory stores instructions that, when executed, cause the processor to:

determine, while accessing a first network supporting a first radio access technology (RAT), to change a serving RAT to a second RAT;

control scanning the second RAT;

control temporarily accessing the first network for attempting to receive data buffered in the first network; and

control accessing a second network supporting the second RAT,

wherein each of a bandwidth of the first RAT and a bandwidth of the second RAT is narrower than a bandwidth of a cellular network, and

wherein each of a sleep state of the first RAT and a sleep state of the second RAT is longer than a sleep state of the cellular network.

17. The electronic device of claim 16 , wherein the memory stores instructions that, when executed, cause the processor to:

control transmitting to a server, through the second network, information regarding a packet lastly received from the server.

18. The electronic device of claim 16 , wherein the memory stores instructions that, when executed, cause the processor to:

control transmitting to a server, a message for notifying a change of a network through the first network, before accessing the second network.

19. The electronic device of claim 16 , wherein the memory stores instructions that, when executed, cause the processor to:

select the second RAT based on an application being executed and a state of a battery of the electronic device.

20. The electronic device of claim 16 ,

wherein the first RAT and the second RAT are usable for providing internet of things (IoT) service.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2018
From: NAM, CHANGWON; CHO, SONGYEAN; LIM, CHAEMAN
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 044610/0074 →
Priority Claims (1)
KR 10-2017-0008611 · Jan 18, 2017 · national
Continuity (1)
Related Publication 20180206188A1 · Jul 19, 2018