Source: http://www.google.nl/patents/US20060104228
Timestamp: 2017-12-12 14:21:33
Document Index: 483378457

Matched Legal Cases: ['art 2006', 'art 2009', 'art 2010', 'art 2007', 'art 2007', 'art 2010', 'art 2010']

Patent US20060104228 - Method and apparatus for transitioning between radio link protocols in a ... - Google Patenten
A method and apparatus for transitioning between radio link protocols in a packet-based real-time media communication system. A wireless communication device such as a cell phone will operate under one radio link protocol (such as IS-856, also known as 1xEV-DO) to engage in packet-based signaling for...http://www.google.nl/patents/US20060104228?utm_source=gb-gplus-sharePatent US20060104228 - Method and apparatus for transitioning between radio link protocols in a packet-based real-time media communication system
Publicatienummer US20060104228 A1
Aanvraagnummer US 10/991,783
Aanvraagdatum 18 nov 2004
Prioriteitsdatum 18 nov 2004
Ook gepubliceerd als CA2582110A1, CA2582110C, US7974621, WO2006055076A1
Publicatienummer 10991783, 991783, US 2006/0104228 A1, US 2006/104228 A1, US 20060104228 A1, US 20060104228A1, US 2006104228 A1, US 2006104228A1, US-A1-20060104228, US-A1-2006104228, US2006/0104228A1, US2006/104228A1, US20060104228 A1, US20060104228A1, US2006104228 A1, US2006104228A1
Uitvinders Tong Zhou, David Mohan
Patentcitaties (18), Verwijzingen naar dit patent (32), Classificaties (22), Juridische gebeurtenissen (3)
US 20060104228 A1
engaging in packet-based session setup signaling via a first protocol radio link, to set up a packet-based real-time media session; and
upon completion of session setup, automatically transitioning to have a second protocol radio link, and, via the second protocol radio link, engaging in packet-based real-time media communication in the session.
upon completion of the session, automatically transitioning to have the first protocol radio link, so as to be prepared to once again use the first protocol radio link to engage in packet-based session setup signaling.
4. The method of claim 1, performed at an initiating wireless communication device.
5. The method of claim 1, performed at a terminating wireless communication device.
6. The method of claim 1, wherein the packet-based real-time media session comprises an instant-chat session selected from the group consisting of a push-to-talk session and a push-to-view session.
7. The method of claim 1, wherein the packet-based real-time media session comprises a Real-time Transport Protocol (RTP) session.
8. The method of claim 1, wherein the packet-based session setup signaling comprises Session Initiation Protocol (SIP) signaling.
9. The method of claim 1, further comprises detecting the completion of session setup.
10. The method of claim 9, wherein the method is performed at an initiating wireless communication device that buffers initial media, and wherein detecting the completion of session setup comprises detecting the occurrence of the later of (i) completion of session setup signaling and (ii) completion of receiving initial media to buffer.
11. The method of claim 9, wherein detecting the completion of session setup signaling comprises detecting completion of session setup signaling.
12. The method of claim 1, wherein the wireless communication device is a cellular telephone.
13. In a wireless communication device, a method comprising:
acquiring wireless packet data connectivity over a first protocol radio link;
engaging in session setup signaling over the first protocol radio link, to establish a packet-based real-time media session;
making a first determination that the session setup signaling is complete;
responsive to the first determination, automatically transitioning from (i) packet-data connectivity over the first protocol radio link to (ii) packet-data connectivity over a second protocol radio link;
engaging in packet-based real-time media communication in the session, via the second protocol radio link;
making a second determination that the session is complete; and
responsive to the second determination, automatically transitioning from (i) packet-data connectivity over the second protocol radio link to (ii) packet-data connectivity over the first protocol radio link.
14. The method of claim 13, wherein the first protocol radio link comprises an IS-856 radio link, and wherein the second protocol radio link comprises an IS-2000 radio link.
means for engaging in packet-based session setup signaling via a first protocol radio link, to set up a packet-based real-time media session; and
means, operable upon completion of session setup, for automatically transitioning to have a second protocol radio link, and, via the second protocol radio link, for engaging in packet-based real-time media communication in the session.
16. The wireless communication device of claim 15, wherein the first protocol radio link is an IS-856 radio link, and wherein the second protocol radio link is an IS-2000 radio link.
means, operable upon completion of the session, for automatically transitioning to have the first protocol radio link, so as to be prepared to once again use the first protocol radio link to engage in packet-based session setup signaling.
18. The wireless communication device of claim 15, wherein the packet-based real-time media session comprises an instant-chat session selected from the group consisting of a push-to-talk session and a push-to-view session.
19. The wireless communication device of claim 15, wherein the packet-based real-time media session comprises a Real-time Transport Protocol (RTP) session.
20. The wireless communication device of claim 15, wherein the packet-based session setup signaling comprises Session Initiation Protocol (SIP) signaling.
21. The wireless communication device of claim 15, further comprises means for detecting the completion of session setup.
22. The wireless communication device of claim 21, further comprising means for buffering initial media, wherein the means for detecting the completion of session setup comprises means for detecting the occurrence of the later of (i) completion of session setup signaling and (ii) completion of receiving initial media to buffer.
23. The wireless communication device of claim 21, wherein the means for detecting the completion of session setup signaling comprises means for detecting completion of session setup signaling.
24. The wireless communication device of claim 15, wherein the wireless communication device is a cellular telephone.
a second protocol radio link interface for communicating over a second protocol radio link;
program logic for acquiring a first wireless packet-data connection over the first protocol radio link;
program logic for engaging in packet-based session setup signaling via the second wireless packet-data connection over the first protocol radio link, to set up a packet-based real-time media session;
program logic for detecting that the session has been set up and for responsively transitioning from (i) the first wireless packet-data connection over the first protocol radio link to (ii) a second wireless packet-data connection over a second protocol radio link; and
program logic for then engaging in packet-based real-time media communication in the session, via the second wireless packet-data connection over the second protocol radio link.
When in an idle IS-2000 mode, if a hybrid terminal locks onto an IS-856 system and acquires packet-data connectivity, the terminal will apply the conventional packet-data connection process, including acquiring an IS-856 radio link, and a PPP link and IP address.
When in a dormant IS-2000 mode, the terminal will also apply the conventional packet-data connection process, but, as with a handoff from IS-856 to IS-2000, the terminal may only need to acquire an IS-856 radio link, as the PDSN may recognize that the terminal already has an assigned IP address.
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Internationale classificatie H04W84/08, H04W36/14, H04W80/10, H04W80/04, H04W88/06, H04W4/10
Coöperatieve classificatie H04L65/608, H04L65/1069, H04L65/4061, H04L65/1016, H04W36/26, H04W76/005, H04W36/14, H04W88/06, H04W4/10, H04W80/04, H04W80/10
Europese classificatie H04W36/26, H04L29/06M2S1, H04L29/06M4P, H04L29/06M6P
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZHOU, TONG;MOHAN, DAVID;REEL/FRAME:016011/0521