WiMAXBrochure_RevE.pdf 2397KB Apr 16 2013 ... - mirror omadata

Mobile WiMAX Performance
Using a commonly accepted evaluation methodology for
3G systems, Mobile WiMAX has been simulated against
the 3G enhancements. These simulation s have shown
that:
■ Mobile WiMAX peak data rates are up to 5x better
than 3G+ technologies and
■ Mobile WiMAX spectral efficiency is 3x better than any
3G+ technology
Peak Data rate
Thanks to technologies
70
60
50
DL
UL
such as OFDMA and
MIMO, Mobile WiMAX
40
can meet the
30
demanding
20
performance needs for
10
0
EVDO-A EVDO-B HSPA Mobile WiMAX (2x2)
the delivery of
broadband services in
Net Throughput per Channel/Sector a challenging mobile
16
14 DL
environment.
12 UL
Performance
10
simulations show that
8
6
mobile WiMAX
4
provides superior
2
0
EVDO-A EVDO-B HSPA Mobile WiMAX (2x2)
throughput and
spectral efficiency
2
1.8 DL
Spectral Efficiency
compared to 3G
CDMA-based
1.6
1.4
UL
enhancements, EVDO
1.2
1
and HSPA. These
0.8
0.6
advantages will provide
0.4
0.2
operators with added
0
EVDO-A EVDO-B HSPA Mobile WiMAX (2x2) network capacity for
the support of value-added services with fewer base
stations than alternative approaches, thus resulting in
lower network capital and operating costs.
Mobile WiMAX Technology
To deliver the superior performance Mobile WiMAX relies
on advanced technologies such as OFDMA, MIMO and
SAS.
Internet
ASPs
Legacy
Core
Networks
2G/3G
Mobile
Networks
NAP – Network Access provider
NSP – Network Service provider
Network Reference Model (NRM)
Home
NSP
AAA
IMS
HA
CRM Billing
CSN
(Connectivity Service Network)
R5
Other
Operator’s
CSN
MIMO stands for Multiple Input Multiple Output. It is an
antenna technology that uses multiple antennas at both
the transmit end and the receive end. MIMO utilizes multipath
to advantage, combining reflected signals into a
single stream in order to improve throughput, reach and
spectral efficiency.
Smart Antenna Systems (SAS) is an advanced antenna
technology that directs the signal to the end user device.
Using beamsteering/beamforming technology, SAS
focuses the signal on active devices, delivering greater
coverage and spectral efficiency. Airspan’s antenna
technology enables the overlay of SAS on top of MIMO.
Mobile WiMAX Network reference Model
(NRM)
Mobile WiMAX end-to-end network architecture model
follows the Network Reference Model (NRM) shown below.
Access Service Network (ASN) consists of the WiMAX Base
Stations and the ASN Gateway. The main functions of the
ASN gateway are to aggregate the traffic from the base
stations and to manage handover between them.
Airspan’s ASN Gateway solution is called ControlMAX and
is described later.
Connectivity Service Network (CSN) is the core of the
network. It controls and manages the ASNs and the
subscribers with a variety of services such as AAA, Home
Agent functions, DHCP server, etc. CSN is also responsible
for connecting to other networks and enables interoperator
and inter-technology roaming. Airspan’s IMS
solution, which includes VoiceMAX, resides in the CSN and
is described later in this document.
Airspan’s Mobile Station (MS) device, 16eUSB, will be
Wave 2 compliant from the outset and will support MIMO.
R3
IP
Cloud
ASN
GW
(FA)
ASN
(Access Service Network)
R4
R6
IP
Cloud
R6
Another ASN
NAP
BS
BS
R8
R8
R2
R1
Mobile Station
(MS)
10