Embed Size (px)
Citation preview
1 | CMAS Overvview | Month 2008
Commercial Mobile Alert Service (CMAS)
Potential Changes
Source:
Orlett W. Pearson, Alcatel-Lucent
Ravi Patwardhan, Qualcomm Inc.
2 | CMAS Overvview | Month 2008
Commercial Mobile Alert Service (CMAS)
CMAS Support:
B-SMS over 1x Paging Channel as the transport mechanism for CDMA to support Commercial Mobile Alert (CMA) Text Profile
The Standards support PCH
The Standards support BCCH
Mapping the CMAS “E” Interface parameters to CDMA B-SMS sub-parameters
Where will these be defined?
IS-637 or
CMAS “E” Interface Document
3 | CMAS Overvview | Month 2008
Commercial Mobile Alert Service (CMAS)
CMAS Support:
Mapping Consideration
Decide which parameters are mandatory or optional
Decide on the length of each parameter
Map CMAS Parameters– Option 1: Map CMAS parameters to existing IS-637 sub-parameters and/or
define new IS-637 sub-parameters – Impact: Modify IS-637– Advantages: (1) Re-use of existing sub-parameters– Disadvantages: All CMAS parameters cannot be mapped to existing
sub-parameters– Option 2: Map all parameters to user data SMS Sub-Parameter which
contains header information and display text.– Impact: Define Header Structure in “E” Interface Standard– Advantages: (1) Technology Independent, (2) No Standards Changes
4 | CMAS Overvview | Month 2008
Commercial Mobile Alert Service (CMAS)
CMAS Support:
Mapping the CMA classes, categories, and eventCodes to Broadcast Service Categories in TSB-58.
Identify a block of codes
Create a separate table specifically for CMAS
Under Consideration:
Battery Life Improvements
Standards Impact: Unknown/TBD
