CA2582110A1 - Reduced setup latency by transitioning to a second protocol radio link once the session is set up via a first protocol radio link - Google Patents

Reduced setup latency by transitioning to a second protocol radio link once the session is set up via a first protocol radio link Download PDF

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Publication number
CA2582110A1
CA2582110A1 CA002582110A CA2582110A CA2582110A1 CA 2582110 A1 CA2582110 A1 CA 2582110A1 CA 002582110 A CA002582110 A CA 002582110A CA 2582110 A CA2582110 A CA 2582110A CA 2582110 A1 CA2582110 A1 CA 2582110A1
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CA
Canada
Prior art keywords
radio link
session
packet
protocol radio
communication device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002582110A
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French (fr)
Other versions
CA2582110C (en
Inventor
Tong Zhou
David Mohan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sprint Spectrum LLC
Original Assignee
Sprint Spectrum L.P.
Tong Zhou
David Mohan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sprint Spectrum L.P., Tong Zhou, David Mohan filed Critical Sprint Spectrum L.P.
Publication of CA2582110A1 publication Critical patent/CA2582110A1/en
Application granted granted Critical
Publication of CA2582110C publication Critical patent/CA2582110C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/26Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40Support for services or applications
    • H04L65/4061Push-to services, e.g. push-to-talk or push-to-video
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/65Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/1016IP multimedia subsystem [IMS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10Push-to-Talk [PTT] or Push-On-Call services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/40Connection management for selective distribution or broadcast
    • H04W76/45Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04Network layer protocols, e.g. mobile IP [Internet Protocol]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08Upper layer protocols
    • H04W80/10Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

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 setup of a packet-based real-time media session such as a push-to-talk session (42). Once the session is set up (44), the wireless communication device will then automatically transition to operate under a different radio link protocol (such as IS-2000, also known as 1xRTT) (46), and will engage in packet-based real-time media communication in the session over that different radio link protocol (48). Preferably, the radio link protocol used for session setup signaling will provide for reduced setup latency, while the radio link protocol used for bearer communication in the session will provide for reduced jitter and improved real-time media communication.

Claims (25)

1. In a wireless communication device, a method comprising:

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.
2. The method of claim 1, 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.
3. The method of claim 1, further comprising:

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.
15. A wireless communication device comprising:

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.
17. The wireless communication device of claim 15, further comprising:

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.
25. A wireless communication device comprising:

a first protocol radio link interface for communicating over a first protocol radio link;
a second protocol radio link interface for communicating over a second protocol radio link;

a processor;

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.
CA2582110A 2004-11-18 2005-09-14 Reduced setup latency by transitioning to a second protocol radio link once the session is set up via a first protocol radio link Expired - Fee Related CA2582110C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/991,783 2004-11-18
US10/991,783 US7974621B2 (en) 2004-11-18 2004-11-18 Method and apparatus for transitioning between radio link protocols in a packet-based real-time media communication system
PCT/US2005/032739 WO2006055076A1 (en) 2004-11-18 2005-09-14 Reduced setup letency by transitioning to a second protocol radio link once the session is set up via a first protocol radio link

Publications (2)

Publication Number Publication Date
CA2582110A1 true CA2582110A1 (en) 2006-05-26
CA2582110C CA2582110C (en) 2012-07-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2582110A Expired - Fee Related CA2582110C (en) 2004-11-18 2005-09-14 Reduced setup latency by transitioning to a second protocol radio link once the session is set up via a first protocol radio link

Country Status (4)

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US (1) US7974621B2 (en)
CA (1) CA2582110C (en)
MX (1) MX2007005767A (en)
WO (1) WO2006055076A1 (en)

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Also Published As

Publication number Publication date
WO2006055076A1 (en) 2006-05-26
CA2582110C (en) 2012-07-10
US7974621B2 (en) 2011-07-05
MX2007005767A (en) 2007-07-16
US20060104228A1 (en) 2006-05-18

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Effective date: 20160914