User's Manual

COMPANY CONFIDENTIAL
38
1.8.7 Multi-mode System
Selection
Facilitating system selection when UE
supports multiple modes
1.8.8 Multimode: System
Selection – Avoiding
Unnecessary Attach
Requests in A
3GPP+3GPP2
Multimode UE
NAS will use a synchronous API call to check
with CM whether a PLMN is ok to attach
before starting attach procedure. If API
returns TRUE, NAS will do the attaching and
send SRV_CNF to CM. This will be a
preferred system so CM won’t send
STOP_MODE for less preferred system. If
API returns FALSE, CM_SRV_CNF with No
Service
1.8.9 Carrier Specific BSR
Requirements
Extensions to carrier specific set of
requirements for System Selection
1.8.10 Data Services:
eHRPD/LTE – Data
System Determination for
Multiple Radio Systems
Re-architect data call arbitration in Data
Services layers to remove race conditions
between various SW entities in modem and
CNE
1.8.11 WCDMA/GERAN:
System Selection –
Prevent UE from
Sending Attach Request
Message Infinitely When
HPLMN Reject Attach
Request with Cause 14
If HPLMN rejects GPRS Registration with
cause # GPRS Services Not Allowed in this
PLMN (which it shouldn't as per expectation
from a well-behaved network), UE keeps on
attempting registration again and again on
same HPLMN RA. This feature is to cover up
for this network misbehavior and reattempt
GPRS registration only on RA change
1.9 Modem (Data)
1.9.1 ATCOP
1.9.2 WCDMA/GERAN:
ATCOP 3GPP –
Enhancing The Interface
for Manual PLMN
Selection
Provide Manual PLMN Selection API between
CM/NAS and ATCOP to provide the current
serving status of the UE
1.9.3 IPHC IP header compression protocol as RFC 2509
1.9.4 DHCPv4 DHCPv4 This is to support for stateless
DHCPv4 protocol to get P-CSCF and DNS
addresses
1.9.5 Simple IPv4 Supports IPv4 address allocation and release
without IP mobility
1.9.6 Mobile IPv4
1.9.7 4 PDNs Support over
Multi-RmNet
Provides the capability to an external AP to
support 4 PDNs through 4 RmNet
Connections to external processor
1.9.8 Dual IP on single RmNet UE shall support tethered RmNet to laptop
data call using Dual IP on single RmNet to a
single USB-end point