COMMUNICATION METHOD AND MOBILE ELECTRONIC DEVICE USING THE SAME

• US 20150156166A1
• Filed: 04/14/2014
• Published: 06/04/2015
• Est. Priority Date: 11/29/2013
• Status: Active Grant

• Current Assignee: Acer, Inc.
• Original Assignee: Acer, Inc.
• Inventors: Lee, Jia-Hau
• Granted Patent: US 9,774,566 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5053 Lease time; Renewal aspects
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04W 52/0238 where the received signal is an unwanted signal, e.g. interference or idle signal
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A communication method and a mobile electronic device are provided. The communication method includes: receiving a message packet; determining whether or not the received message packet is an abnormal packet; and when the received message packet is determined out as the abnormal packet, increasing a count value; keeping to receive the message packets and determine whether or not the received message packet is an abnormal packet; and when the count value is greater than an upper-limit value, re-deriving an IP address.

Claims

1. A communication method, suitable for a mobile electronic device and comprising:

a. receiving a message packet;

b. determining whether or not the message packet is an abnormal packet, and when the message packet is determined out as the abnormal packet, increasing a count value;

c. keeping to perform the aforementioned steps from a. to b.; and

d. when the count value is greater than a first upper-limit value, re-deriving an IP address.

2. The communication method as claimed in claim 1, wherein the step of determining whether or not the message packet is the abnormal packet comprises:

determining whether or not a port corresponding to the message packet is a port open for use;

if the port corresponding to the message packet is not the port open for use, determining out the message packet is the abnormal packet.

3. The communication method as claimed in claim 1, wherein the message packet is a synchronization signal (SYN signal) of Transfer Control Protocol (TCP) or a data packet of User Datagram Protocol (UDP).

4. The communication method as claimed in claim 1, wherein after step c, the communication method further comprises:

determining whether or not in a preset time, the count value is greater than a second upper-limit value;

when in the preset time, the count value is greater than the second upper-limit value, re-deriving the IP address.

5. The communication method as claimed in claim 1, wherein the step of re-deriving the IP address comprises:

interrupting a present connection and re-performing a connection procedure.

6. A mobile electronic device, comprising:

a communication unit; and

a processing unit, coupled to the communication unit, wherein the processing unit performs following steps;

a. receiving a message packet;

b. determining whether or not the message packet is an abnormal packet, and when the message packet is determined out as the abnormal packet, increasing a count value;

c. keeping to perform the aforementioned steps from a. to b.; and

d. when the count value is greater than a first upper-limit value, re-deriving an IP address.

7. The mobile electronic device as claimed in claim 6, wherein:

the processing unit determines whether or not a port corresponding to the message packet is an port open for use;

if the port corresponding to the message packet is not the port open for use, determining out the message packet is the abnormal packet.

8. The mobile electronic device as claimed in claim 6, wherein:

the message packet is a synchronization signal (SYN signal) of Transfer Control Protocol (TCP) or a data packet of User Datagram Protocol (UDP).

9. The mobile electronic device as claimed in claim 6, wherein:

the processing unit determines whether or not in a preset time, the count value is greater than a second upper-limit value;

when in the preset time, the count value is greater than the second upper-limit value, the processing unit re-derives the IP address through the communication unit.

10. The mobile electronic device as claimed in claim 6, wherein:

the processing unit interrupts a present connection through the communication unit and re-performs a connection procedure so as to re-derive the IP address.