Apparatus and method for cordless internet protocol

• US 20070153768A1
• Filed: 12/30/2005
• Published: 07/05/2007
• Est. Priority Date: 12/30/2005
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Gupta, Sanjay, Jagadesan, Balakumar
• Application Number:
  US11/322,714
• Publication Number:
  US 20070153768A1
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 1/72502 with one base station connected to a single line
• CPC Class Codes: H04M 2203/1091 Fixed mobile conversion
• CPC Class Codes: H04M 2250/06 including a wireless LAN interface
• CPC Class Codes: H04M 3/42246 where the subscriber uses a multi-mode terminal which moves and accesses different networks with at least one network having a wireline access including cordless PBX
• CPC Class Codes: H04M 3/42263 where the same subscriber uses different terminals, i.e. nomadism
• CPC Class Codes: H04W 76/00 Connection management
• CPC Class Codes: H04W 84/105 PBS [Private Base Station] network H04W84/12 - H04W84/16 take precedence
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: H04W 92/04 Interfaces between hierarchically different network devices

Abstract

A mobile station (323) may register with a base set (301) to access a fixed line service, such as broadband IP network (315), to make and receive calls. When the mobile station (323) is within a radio coverage area of access point (313), it may seamlessly register itself and receive calls placed to a home phone number. Mobile station (323) may initiate a call using either its own MSISDN of the MSISDN of the base set (301), but not both. A second mobile station (327) registered with base set (301) may participate in the same call, acting as an extension line. In this manner, home base (301) provides a user cordless phone experience similar to having cordless extension phones connected to a PSTN line.

Claims

1. A base unit comprising:

a processor;

a memory coupled to said processor;

a cellular network logical identifier, corresponding to a subscription on a cellular network, stored in said memory; and

registration information for at least one mobile station stored in said memory.

2. The base unit of claim 1, wherein said processor further comprises:

a call control command module, for receiving a call control confirmed command from a mobile station having said registration information stored in said memory, and thereafter for blocking call control commands from any other mobile station.

3. The base unit of claim 1, wherein said processor further comprises:

a Voice-over-Internet-Protocol (VoIP) stack.

4. The base unit of claim 3, further comprising:

a wireless transceiver having a wireless interface protocol stack coupled thereto; and

wherein said processor further comprises a mobility management stack.

5. The base unit of claim 4, wherein said processor further comprises:

a multiplexing module, for multiplexing VoIP packets to and from any wireless device having registration information stored in said memory.

6. The base unit of claim 5, wherein said processor further comprises:

a broadcast module, for broadcasting an alert of an incoming call, directed to said cellular network logical identifier, to any mobile station having registration information stored in said memory.

7. The base unit of claim 6, wherein said registration information is a Media Access Control Identifier (MAC-ID) corresponding to a wireless device subscribed to said cellular network.

8. The base unit of claim 7, wherein said processor further comprises:

a registration module, for

receiving a registration request from a first wireless device;

transmitting a registration authorization message to said first wireless device if said memory contains registration information corresponding to said first wireless device;

establishing a call control service point with said cellular network for said first wireless device; and

blocking other wireless devices having registration information in said memory from access to call control signalling.

9. The base unit of claim 1 wherein said cellular network logical identifier is a cellular network Subscriber Identity Module.

10. A method of operating a base unit comprising:

intercepting a call control signaling from a first mobile station;

composing header data for lower layer call signaling layers including a mobility management layer;

combining said header data with said call control signaling to create a complete signaling; and

routing the complete signaling to a controller.

11. The method of claim 10, further comprising:

blocking call control signaling from a second mobile station.

12. The method of claim 11, further comprising:

receiving a hang-up indication from said first mobile;

releasing call control blocking of said second mobile station;

receiving a call control confirmation message from said second mobile station; and

blocking call control signaling from said first mobile station.

13. The method of claim 11, further comprising:

receiving a call control command from said first mobile station;

performing a control function corresponding to said call control command;

releasing call control blocking of said second mobile station;

receiving a call control confirmation message from said second mobile station; and

blocking call control signaling from said first mobile station.

14. A mobile station comprising:

a wireless transceiver;

a Voice-Over-IP (VoIP) stack coupled to said wireless transceiver;

a registration module for registering with a base set; and

a command module for commanding a base set to accept call control signaling only from said mobile station.

15. The mobile station of claim 14, further comprising:

a base set number selection module, for selecting to receive calls from said base set number.

16. The mobile station of claim 15, further comprising:

a virtual Subscriber Identity Module (SIM) client for receiving downloaded SIM information from a base set.

17. The mobile station of claim 16, wherein said wireless transceiver is a WLAN transceiver, and further comprising a second wireless transceiver.

18. The mobile station of claim 17, wherein:

said WLAN transceiver is coupled to one of a Bluetooth stack, an 802.11 stack, or an 802.16 stack; and

said second wireless transceiver is coupled to one of a GSM stack, a CDMA stack, or a UMTS stack.