IP Library › Granted Patent US 7,382,749
Granted Patent B2
US 7,382,749 · App. 10/402,645 · Granted Jun 3, 2008

Systems, methods, and apparatus with a common wireless communications protocol

Assignees: Sony Corporation; Sony Electronics Inc.
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Quick Facts
Patent No.
US 7,382,749
App. No.
10/402,645
Granted
Jun 3, 2008
Kind
B2
Abstract

A Common Wireless Communications Protocol (CWCP) below the TCP/IP layer is a part of OSI layer 3 a (SNDCF-Subnetwork Dependent Convergence Functions). CWCP serves as a common Application Program Interface (API) to the upper application layers. CWCP supports different call processing standards (GSM, WCDMA, CDMA2000) and provides seamless Web or e-mail interfaces using Wireless Application Protocol (WAP) or Transport Layer Interface (TLI) by the CWCP interfacing with the different physical layer (3G) standards. CWCP provides interoperability between the different physical standards and provides a plug-and-play environment for different wireless devices and applications. CWCP provides interoperability at the systems level via interoperable software through the IP software layer.

Claims (69)

1. A mobile device for seamless multimode wireless communication over a plurality of wireless communication systems, the mobile device comprising:

an antenna;

a wireless transceiver coupled to the antenna, the wireless transceiver for communicating over a first wireless communication system and a second wireless communication system;

a processor coupled to the wireless transceiver;

a processor readable storage medium coupled to the processor; and

processor readable code stored in the processor readable storage medium for execution by the processor to

to pack transmit data into packet data units for transmission over one of the first wireless communication system and the second wireless communication system, the packet data units having a header with a wireless protocol identifier to identify one of the first wireless communication system and the second wireless communication system over which the packet data units are transmitted, and

to unpack packet data units received over one of the first wireless communication system and the second wireless communication system into receive data, the packet data units having the header with a wireless protocol identifier to identify one of the first wireless communication system and the second wireless communication system over which the packet data units are received.

2. The mobile device of claim 1 wherein

the processor readable code stored in the processor readable storage medium for execution by the processor further

to compress data fields as the data to be packed into the packet data units for transmission, and

to decompress the data unpacked from the packet data units into data fields.

3. The mobile device of claim 2 wherein

the processor readable code stored in the processor readable storage medium for execution by the processor further to

compress header fields with the data fields as the data to be packed into the packet data units for transmission, and

decompress the data unpacked from the packet data units into data fields and header fields.

4. The mobile device of claim 3 wherein

the header further includes a compression indicator indicating the header field and data field of a packet data unit are compressed and the type of header compression coding and the type of data compression coding.

5. The mobile device of claim 3 wherein

the header further includes a segment number and a sequence number.

6. The mobile device of claim 1 wherein

the first wireless communication system is a first cellular telephone system, and

the second wireless communication system is a second cellular telephone system having a different wireless communication protocol than the first cellular telephone system.

7. The mobile device of claim 1 wherein

the processor readable code stored in the processor readable storage medium for execution by the processor further to

seamlessly handoff a communication session from the first wireless communication system to the second wireless communication system without dropping the communication session.

8. The mobile device of claim 1 wherein

the first wireless communication system is a cellular telephone system, and

the second wireless communication system is a wireless local area network (WLAN) having a different wireless communication protocol than the cellular telephone system.

9. The mobile device of claim 1 wherein

the header further includes a segment number and a sequence number, and

the data is one or more TCP/IP segments.

10. A base station of a plurality of base stations within a wireless communication system for multimode wireless communication, the base station comprising:

an antenna;

a wireless transceiver coupled to the antenna, the wireless transceiver for wireless communication using a plurality of wireless communication protocols;

a processor coupled to the wireless transceiver;

a processor readable storage medium coupled to the processor; and

processor readable code stored in the processor readable storage medium for execution by the processor

to pack transmit data into packet data units for transmission over the wireless communication system using one of the plurality of wireless communication protocols, the packet data units having a header with a wireless protocol identifier to identify the one of the plurality of wireless communication protocols with which the packet data units are to be transmitted, and

to unpack packet data units received from the wireless communication system into receive data, the packet data units having the header with a wireless protocol identifier to identify the one of the plurality of wireless communication protocols with which the packet data units are received.

11. The base station of claim 10 wherein

the processor readable code stored in the processor readable storage medium for execution by the processor further

to compress data fields as the data to be packed into the packet data units for transmission, and

to decompress the data unpacked from the packet data units into data fields.

12. The base station of claim 11 wherein

the processor readable code stored in the processor readable storage medium for execution by the processor further

to compress header fields with the data fields as the data to be packed into the packet data units for transmission, and

to decompress the data unpacked from the packet data units into data fields and header fields.

13. The base station of claim 12 wherein

the header further includes a compression indicator indicating the header field and the data field of a packet data unit are compressed and the type of header compression coding and the type of data compression coding.

14. The base station of claim 12 wherein

the header further includes a segment number and a sequence number.

15. The base station of claim 10 wherein

the processor readable code stored in the processor readable storage medium for execution by the processor further

to seamlessly handoff a communication session from the wireless communication system to another different wireless communication system without dropping the communication session.

16. The base station of claim 15 wherein

the one wireless communication system serves a first geographic region, and

the another different wireless communication system serves a second geographic region substantially different from the first geographic region.

17. The base station of claim 10 wherein

the header further includes a segment number and a sequence number, and

the data is one or more TCP/IP segments.

18. The base station of claim 10 wherein

the plurality of wireless communication protocols is AMPS, GSM, CDMA, TDMA, CDMA2000 and WCDMA.

19. The base station of claim 10 wherein

the plurality of wireless communication protocols is WLAN, WIFI, GPRS and Bluetooth.

20. The base station of claim 10 wherein

the wireless transceiver is

a multiplexer and demultiplexer coupled to the antenna, and

a plurality of wireless transceivers one for each of the plurality of wireless communication protocols, the plurality of wireless transceivers coupled to the multiplexer and demultiplexer and to the processor.

Assignments (2)
CORRECTED COVER SHEET TO ADD AN ADDITIONAL ASSIGNEE, PREVIOUSLY RECORDED AT REEL 013929, FRAME 0536. Recorded Sep 25, 2003
From: YAM, ERIC
To: SONY CORPORATION; SONY ELECTRONICS INC.
Reel/Frame 014527/0779 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2003
From: YAM, ERIC
To: SONY ELECTRONICS INC.
Reel/Frame 013929/0536 →
Continuity (2)
Provisional Application 6042948200 · Nov 26, 2002
Related Publication 20040100924A1 · May 27, 2004