Mobile HD Voice

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12 Δεκ 2013 (πριν από 3 χρόνια και 8 μήνες)

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Mobile HD Voice

January 6
th

, 2010

Mahesh Makhijani

2


Unprecedented Mobile Voice Quality On
Current 3G Networks & Beyond

Leverages technologies commercially available
today

No 4G/LTE Needed





Advanced
Noise
Cancellation


Qualcomm’s
advanced noise
cancellation
technology






Wideband
Vocoder


Superior voice
quality compared
to today’s narrow
band vocoders


4GV
TM
-
WB

(
EVRC
-
WB)

+

Fluence
TM


3

4GV
TM
-
WB Offers Higher Quality Voice
without Capacity Impact

Capacity

Quality


4GV
TM
-
WB

(EVRC
-
WB)



4GV
TM
-
B

(EVRC
-
B)

Higher Quality at
same capacity as
today’s EVRC

Higher voice quality with no impact on capacity


Enhances both VoIP and Circuit Switched (CS) voice quality


Supported in select Qualcomm MSM chipsets


EVRC

4

Fluence
TM



Qualcomm’s Advanced Noise
Cancelling Technology

Primary
Microphone

Secondary
Microphone

Speaker

Incremental software only upgrade


Superior noise reduction without impacting speech quality


Accurately identifies noise by employing secondary microphone


Commercially available in select phones

5

HD VoIP is the Natural Choice when
Migrating to All
-
IP

3G
Network

WB

WB

VoIP

WB


Wideband

NB


Narrowband



IMS for VoIP

PSTN

Fixed


Migration to IP

WB

VoIP

VoIP

Terminal

Fixed
Phone

Higher voice quality with no impact on capacity


End
-
to
-
end VoIP enables HD voice

NB

IP

7

HD Voice Demo Configuration At CES
-
2010

HD VoIP Phone

(VoIP+4GV
TM
-
WB+ Fluence
TM
)

Fixed IP HD VoIP Phone

(with WB codec G.722)


Qualcomm

CES
Conference Room


CES
Booth


OTA Network

QRC San Diego

4GV
TM
-
WB <
-
> G.722

Transcoder

EV
-
DO

Rev. A/B


PDSN

Internet

Asterisk/

MGW

Internet

8

Leverages technologies available today

-

4GV
TM
-
Wideband vocoder and Fluence
TM

noise cancellation

HD Voice

Ability to differentiate voice service to high
-
value
customers

Unprecedented mobile voice quality

9

Speech Codecs Landscape

Fragmented and mostly driven by fixed network service providers

Wireless

Wireline

64kbps

4kbps

8kbps

16kbps

32kbps

G.711

G.726

G.728

G.729

G.722.1

G.729.1

G.728

AMR

HR

EFR

AMR
-
WB

QC8

QC13

EVRC

EVRC
-
B

EVRC
-
WB

BV16

BV32

RT
-
Audio

SILK

RNA
-
10

G.723

ITU
-
T

3GPP

3GPP2

Proprietary

ISAC
-
WB

iLBC

G.722

SVOPC

WMA
-
WB

IP
-
MR

Speex