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TSG-S Feature Definition for Wireless Local Loop 041400 Rick L. Willis CDG WLL Technical Team CDMA Development Group.

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Presentation on theme: "TSG-S Feature Definition for Wireless Local Loop 041400 Rick L. Willis CDG WLL Technical Team CDMA Development Group."— Presentation transcript:

1 TSG-S Feature Definition for Wireless Local Loop 041400 Rick L. Willis CDG WLL Technical Team CDMA Development Group

2 041400 CDMA Development Group What is the Wireless Local Loop feature? Local Loop provided wirelessly Alternative to the exclusively wired local loop Flexible & rapid deployment option in contrast to the purely wired local loop Comprised of fewer maintenance points Not limited to a single network topography Supported by numerous wireless devices WLL supports Mobility option Supports co-existence of numerous vertical features Wireless Switch Base Station E1/T1

3 041400 CDMA Development Group What is Local Loop? Subscriber dial tone BORSCHT functionality Battery feed suppling dc to the local loop Overvoltage protection to limit or isolate foreign voltages on the local loop Ringing voltage to the local loop & includes answer detection Signaling of hook status (on-hook & off-hook) (defined in IS-2000-A) Coding conversion of analog to digital and digital to analog via the codec Hybrid conversion of the 2-wire bi- directional local loop to a 4-wire path with separate, unidirectional transmit & receive circuits. Performs impedance matching of the local loop to provide echo cancellation Test access & test of the local loop Wire Line Switch RJ-11

4 041400 CDMA Development Group Network Topography Options E1/T1 Wireless Switch Gateway Digital Loop Carrier (V5.2 or TR303) Base Station Base Station Access Controller Traditional Trunk Options (ANSI/CCITT ISUP, R1/R2 MF, etc) E1/T1 Local End Office Network Feature Server Wireless Switch Base Station E1/T1 FR/ATM/IP

5 041400 CDMA Development Group Wireless Device Options Traditional Mobile Station (MS) Network Interface Unit (NIU) Portable Fixed Subscriber Unit Docking Station Unit Outdoor Network Interface Unit (NIU)... RJ-11

6 041400 CDMA Development Group Mobility Options No Mobility Limited Mobility Full Mobility

7 041400 CDMA Development Group Vertical Feature Options Analog Facsimile Call Forwarding Call Transfer Call Waiting Calling Party Identification Circuit Switched Data Last Call Return Limited Service Area Message Waiting Restricted Access Short Message Service Three-Way Calling User Zone Others...

8 041400 CDMA Development Group Service Provider Control of the Feature Wireless Device Device Type: switch provisioned & requesting Wireless Local Loop at registration –No Mobility –Limited Mobility –Full Mobility Network (Optional) Device Type: provisioned Wireless Local Loop –No Mobility –Limited Mobility –Full Mobility

9 041400 CDMA Development Group Wireless Local Loop Feature Characteristics Wireless Local Loop Dial Tone provided to the Calling Subscriber at Call Origination Signaling of Hook Status to the Serving System for use in Call Control and application of appropriate Call Treatments –On-hook –Off-hook –Stuck-off-hook


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