World's first voice handover between LTE and WCDMA accomplished
(Thomson Reuters ONE) -
* Breaks ground in voice over LTE technology
* Successful handover of a voice call from LTE to WCDMA on an end-to-end
network achieved on December 23, 2011
* Handover uses 3GPP-standardized Single Radio Voice Call Continuity (SRVCC)
Up until this point, the main use of LTE has been for mobile data traffic,
however operators are starting to evolve their networks to support voice and SMS
over LTE (based on VoLTE GSMA IR.92), and prepare for introduction of new
globally interoperable multimedia services on LTE smartphones.
One particular challenge to operators is to ensure that users do not experience
interruptions of ongoing voice calls when they move out of LTE coverage.
Ericsson (NASDAQ: ERIC) together with Qualcomm Incorporated, successfully
performed a voice handover based on the 3GPP-standardized functionality Single
Radio Voice Call Continuity (SRVCC) demonstrating users will experience seamless
voice services when they move out of LTE coverage, since the call will
automatically be handed over to WCDMA or GSM access during the call.
Handover of a voice call from LTE to WCDMA was successfully established on
December 23 last year using Ericsson end-to-end network infrastructure and an
LTE/3G multimode smartphone chipset from Qualcomm.
Johan Wibergh, Head of Business Unit Networks, Ericsson, says: "By accomplishing
this advanced LTE handover technology together with Qualcomm, we now ensure that
operators can meet consumers' expectations on a high-quality voice over LTE
service. Operators will be able to maintain their quality brand for their voice
business when they launch voice over LTE."
SRVCC enables operators to deploy voice over LTE, seamlessly handing over to
existing GSM and WCDMA installed base as needed, to provide a robust voice
service with global reach to their LTE smartphone users.
The handover mechanism is supported on Ericsson's end-to-end products and
solutions; LTE/WCDMA/GSM RAN, Evolved Packet Core, MSC and IMS to work towards
VoLTE enabled LTE smartphones.
The first operators are expected to begin deploying SRVCC during 2012, followed
by more global commercial launches in 2013.
Notes to editors:
LTE media kit
White paper: Voice over LTE
Our multimedia content is available at the broadcast room:
www.ericsson.com/broadcast_room
Ericsson is the world's leading provider of technology and services to telecom
operators. Ericsson is the leader in 2G, 3G and 4G mobile technologies, and
provides support for networks with over 2 billion subscribers and has the
leading position in managed services. The company's portfolio comprises mobile
and fixed network infrastructure, telecom services, software, broadband and
multimedia solutions for operators, enterprises and the media industry. The Sony
Ericsson and ST-Ericsson joint ventures provide consumers with feature-rich
personal mobile devices.
Ericsson is advancing its vision of being the "prime driver in an all-
communicating world" through innovation, technology, and sustainable business
solutions. Working in 175 countries, more than 90,000 employees generated
revenue of SEK 203.3 billion (USD 28.2 billion) in 2010. Founded in 1876 with
the headquarters in Stockholm, Sweden, Ericsson is listed on NASDAQ OMX,
Stockholm and NASDAQ New York.
www.ericsson.com
www.twitter.com/ericssonpress
www.facebook.com/technologyforgood
www.youtube.com/ericssonpress
FOR FURTHER INFORMATION, PLEASE CONTACT
Ericsson Corporate Public & Media Relations
Phone: +46 10 719 69 92
E-mail:media.relations(at)ericsson.com
Ericsson Investor Relations
Phone: +46 10 719 00 00
E-mail:investor.relations(at)ericsson.com
Press Release (PDF):
http://hugin.info/1061/R/1582011/494232.pdf
This announcement is distributed by Thomson Reuters on behalf of
Thomson Reuters clients. The owner of this announcement warrants that:
(i) the releases contained herein are protected by copyright and
other applicable laws; and
(ii) they are solely responsible for the content, accuracy and
originality of the information contained therein.
Source: Ericsson via Thomson Reuters ONE
[HUG#1582011]
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Datum: 02.02.2012 - 13:30 Uhr
Sprache: Deutsch
News-ID 110499
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