SYSTEM AND METHOD FOR CONTROLLING CONNECTIONS BETWEEN A WIRELESS ROUTER AND UNLICENSED MOBILE ACCESS CAPABLE MOBILE PHONES

• US 20090268681A1
• Filed: 04/02/2009
• Published: 10/29/2009
• Est. Priority Date: 04/28/2008
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: LIN, YU-HSIN, LIN, HAN-TZUNG
• Granted Patent: US 8,050,681 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 61/103 across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A system for controlling connections between a wireless router and unlicensed mobile access capable mobile phones is provided. The system acquires and stores a media access control address and an Internet protocol address of each mobile phone in an address list. The system periodically checks whether each Internet protocol address recorded in an address resolution protocol cache table of the wireless router matches a corresponding media access control address recorded in the cache table. If the Internet protocol address does not match the corresponding media access control address in the cache table, the system further looks up a media access control address corresponding to the Internet protocol address, and sends an address resolution protocol unicast request to a mobile phone having the media access control address.

Claims

1. A system for controlling connections between a wireless router and unlicensed mobile access (UMA) capable mobile phones, the system comprising:

a connecting module configured for establishing communication connections between the wireless router and the UMA capable mobile phones, the wireless router having an address resolution protocol (ARP) cache table for recording a media access control (MAC) address and an Internet protocol (IP) address of an electronic device that has a communication connection with the wireless router in a network;

an acquiring module configured for acquiring a MAC address and an IP address of each of the UMA capable mobile phones via the network;

a creating module configured for creating an address list, and recording the MAC addresses and the IP addresses of the UMA capable mobile phones in the address list;

a checking module configured for periodically checking whether each IP address recorded in the ARP cache table matches a corresponding MAC address recorded in the ARP cache table;

a determining module configured for determining if the IP address recorded in the ARP cache table is recorded in the address list upon the condition that the IP address does not match the corresponding MAC address;

a sending module configured for looking up a MAC address corresponding to the IP address from the address list upon the condition that the IP address is recorded in the address list, and sending a ARP unicast request to a UMA capable mobile phone having the MAC address to force the UMA capable mobile phone to respond to the ARP unicast request, so as to prolong the communication connection between the wireless router and the UMA capable mobile phone; and

at least one processor that executes at least one computerized instruction for the connection module, the acquiring module, the creating module, the checking module, the determining module, and the sending module.

2. The system as described in claim 1, wherein the electronic device that has a communication connection with the wireless router in the network is selected from the group consisting of a computer, a personal digital assistant (PDA), and a UMA capable mobile phone.

3. The system as described in claim 1, further comprising:

a storing module configured for storing the address list into a memory of the wireless router.

4. The system as described in claim 2, wherein the sending module is further configured for sending an ARP broadcast request to all the electronic devices in the network upon the condition that the IP address is not recorded in the address list.

5. A method for controlling connections between a wireless router and unlicensed mobile access (UMA) capable mobile phones, the method comprising:

establishing communication connections between the wireless router and the UMA capable mobile phones, the wireless router having an address resolution protocol (ARP) cache table for recording a media access control (MAC) address and an Internet protocol (IP) address of an electronic device that has a communication connection with the wireless router in a network;

acquiring a MAC address and an IP address of each of the UMA capable mobile phones via the network;

creating an address list, and recording the MAC addresses and the IP addresses of the UMA capable mobile phones in the address list;

periodically checking whether each IP address recorded in the ARP cache table matches a corresponding MAC address recorded in the ARP cache table;

determining if the IP address recorded in the ARP cache table is recorded in the address list upon the condition that the IP address does not match the corresponding MAC address;

looking up a MAC address corresponding to the IP address from the address list upon the condition that the IP address is recorded in the address list; and

sending an ARP unicast request to the UMA capable mobile phone having the MAC address, to force the UMA capable mobile phone to respond to the ARP unicast request, so as to prolong the communication connection between the wireless router and the UMA capable mobile phone.

6. The method as described in claim 5, wherein the electronic device that has a communication connection with the wireless router in the network is selected from a group of a computer, a personal digital assistant (PDA), and a UMA capable mobile phone.

7. The method as described in claim 5, further comprising:

storing the address list into a memory of the wireless router.

8. The method as described in claim 6, further comprising:

sending an ARP broadcast request to all the electronic devices in the network upon the condition that the IP address is not recorded in the address list.

9. A storage medium having stored thereon instructions that, when executed by a processor, causing the processor to perform a method for controlling connections between a wireless router and UMA capable mobile phones, the method comprising:

establishing communication connections between the wireless router and the UMA capable mobile phones, the wireless router having a address resolution protocol (ARP) cache table for recording a media access control (MAC) address and an Internet protocol (IP) address of an electronic device that has a communication connection with the wireless router in a network;

acquiring a MAC address and an IP address of each of the UMA capable mobile phones via the network;

creating an address list, and recording the MAC addresses and the IP addresses of the UMA capable mobile phones on the address list;

periodically checking whether each IP address recorded in the ARP cache table matches a corresponding MAC address recorded in the ARP cache table;

determining if the IP address recorded in the ARP cache table is recorded in the address list upon the condition that the IP address does not match the corresponding MAC address;

looking up a MAC address corresponding to the IP address from the address list upon the condition that the IP address is recorded in the address list; and

sending an ARP unicast request to the UMA capable mobile phone having the MAC address, to force the UMA capable mobile phone to respond to the ARP unicast request, so as to prolong the communication connection between the wireless router and the UMA capable mobile phone.

10. The storage medium as described in claim 9, wherein the electronic device that has a communication connection with the wireless router in the network is selected from the group consisting of a computer, a personal digital assistant (PDA), and a UMA capable mobile phone.

11. The storage medium as described in claim 9, wherein the method further comprises:

storing the address list into a memory of the wireless router.

12. The storage medium as described in claim 10, wherein the method further comprises:

sending an ARP broadcast request to all the electronic devices in the network upon the condition that the IP address is not recorded in the address list.