RE: stds-80220-requirements: 802.20 Requirements: Handoff - 2
Jim-
interms of the IOS model, I assume handoff occurs at layer 3. And we do
not define layer 3. So I conclude that your proposed text is nice, but it
is not part of the specification we will produce.
alan
-----Original Message-----
From: James Tomcik [mailto:jtomcik@qualcomm.com]
Sent: Thursday, October 23, 2003 3:26 PM
To: 'Stds-80220-Requirements (E-mail)'
Subject: stds-80220-requirements: 802.20 Requirements: Handoff - 2
Attached is some text for the requirements document on handoff (802.20 to
other systems). These sections were deleted because there was no
contributed requirement in this area.
Rationale:
To support 3G service continuity and interworking with other deployed
systems, handoff support is essential to an efficiently operating 802.20
system. Since many emerging services are IP-based handoff support is
advocated for these. Because of the high-speed aspects of the 802.20 air
interface, and the latencies involved with network level handoff,
mechanisms incorporated below the network layer are essential to service
continuity. For example, several handoffs per minute between a 3G system
and an 802.20 system may be required.
Proposed to include the following:
4.4.x 3G Interworking and Handoff
The Air Interface shall include handoff support with 3G systems below the
IP layer. Handoff mechanisms defined shall insure the uninterrupted flow
of data to and from the Mobile Station at rates up to 2 handoffs per
minute. 802.20 Mobile Stations and Base Stations shall support at minimum:
a. Handoff with cdma2000 1x systems
b. Handoff with WCDMA systems
c. Handoff with cdma 1xEV-DO (rev "0" and rev A) systems
d. Handoff with GSM/GPRS Systems
e. Handoff with EDGE Systems
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James D. Tomcik
QUALCOMM, Incorporated
(858) 658-3231 (Voice)
(619) 890-9537 (Cellular)
From: San Diego, CA
PGP: 5D0F 93A6 E99D 39D8 B024 0A9B 6361 ACE9 202C C780
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