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KRC121105 1
User Manual
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HARRIS KRC121105 1 User Manual

User Manual
Mobile Advantage Wireless Office
(DWOS 1.0)
User Manual
PA9
198 17-HRC104 201 PA9
© 1999 Ericsson Inc. - All Rights Reserved
The contents of this document are subject to revision without notice due to continued progress in methodology, design, and manufacturing.
Ericsson Inc. must have no liability for any errors or damages of any kind re­sulting from the use of this document.
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User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
Contents
1 Introduction 6
1.1 About This Manual 6
1.2 Revision History 6
1.3 How To Use This Ma nual 7
2 System Description 8
2.1 Overview 8
2.2 Mobile Advantage Mobile Phone User Features 9
2.3 Mobile Advantage Connections 12
2.4 Mobile Advantage Unit Descriptions 14
2.4.1 Mobility Server 14
2.4.2 Cellular Radio Exchange (CRE) 15
2.4.3 Radio Heads (RH) 18
2.4.4 Scanners 18
2.4.5 Mobile Advantage Mobile Phones 18
3 Site Planning 19
3.1 Site Capacity and Reliability 19
3.2 Mobility Server Planning 19
3.2.1 Mobility Server Connections 20
3.3 Cellular Radio Exchange (CRE) Planning 20
3.3.1 CRE connections 21
3.4 RH Planning 22
3.4.1 Estimating Radio Coverage 22
3.4.2 RH Connections 23
3.5 Scanner Planning 23
3.5.1 Scanner Connections 23
4 Site Preparation 24
4.1 Environmental Requirements 24
4.2 Power Requirements 24
4.3 RH and Scanner Cable Installation 25
4.3.1 Installing Cables From The CRE to RHs or Scanners 25
5 Installation 27
5.1 Dangers, Warnings, and Cautions 27
5.1.1 Protection against Electrostatic Discharge (ESD) 27
5.2 Installing RHs or Scanners 28
5.3 Installing the Mobile Advantage Mobility Server 28
5.4 Installing a Cellular Radio Exchange (CRE) 29
5.4.1 Installing a single-cabinet (main) Wall-Mounted CRE 30
5.4.2 Installing a two-cabinet (Main and Auxiliary) Wall-Mounted CRE 32
6 Integration and Test 36
6.1 Integration 36
6.1.1 Initial frequency selection 36
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6.1.2 Mobile Advantage Initialization 36
6.1.3 The ANSI-41 Link to the HLR 37
6.2 Post-Installation test 37
7 Numbering Plans 39
7.1 Examples of number usage 40
8 Operations, Administration and Maintenance (O&M)
42
8.1 Overview 42
8.1.1 Configuration Management 42
8.2 O&M User Interface 42
8.2.1 User Login 42
8.2.2 Examples of O&M interface screens 43
8.3 Description of Authorities 44
8.3.1 Access Rights 44
8.4 Service Areas 45
8.4.1 Customer 45
8.4.2 End User 46
8.4.3 Personal Number services 47
8.4.4 Route Handling 47
8.4.5 Hardware Resources 47
8.4.6 Fault Management 47
8.4.7 Number Analysis 48
8.4.8 System Network 48
8.4.9 Call Logging 48
8.4.10 Performance 48
8.4.11 Security 48
8.4.12 Tools 48
8.4.13 System Description 48
8.4.14 Security Management 48
9 Troubleshooting 50
9.1 General 50
9.1.1 Start and restart 50
9.1.2 System Backup 50
9.2 Fault Management 50
9.3 Other fault indicators 51
9.3.1 RH and Scanner LEDs 52
9.3.2 CRE Boards Common LEDs 52
9.3.3 DTU Board LEDs 53
9.3.4 SPU Boards LEDs 53
9.3.5 RLU Boards LEDs 53
9.3.6 SWB LEDs 53
10 Software and Hardware Upgrades 54
10.1 Hardware Upgrades 54
10.2 Upgrading From a One-Cabinet to a Two-Cabinet System 55
10.3 Software Upgrades 57
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User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
11 Appendix A—Cabling and Connectors 58
11.1 Overview 58
11.2 -48 Vdc Power and Ground Cables 59
11.2.1 -48 Vdc Power Cables 59
11.3 Backplane Interconnect Cable for a Two-Cabinet CRE 59
11.4 RLU Ethernet Interface Cable (Slot Three Only) 60
11.5 RLU Connections 60
11.5.1 Punch Block to Radio Heads (RH) or Scanners Cabling 60
11.6 SwitchBoard (S WB ) 66
11.6.1 SWB Ethernet Interfac e 66
11.6.2 SWB E1/T1 PCM Interface 67
11.6.3 SWB to DTU cables 71
12 Appendix B—Acronyms and Abbreviations 72 13 Appendix C—Mobile Advantage Unit Specifications
77
13.1 Mobility Server 77
13.2 CRE Specifications 77
13.2.1 CRE Cabinet Dimensions 77
13.2.2 CRE Configuration Example 77
13.2.3 CRE Board Assignments 78
13.3 Radio Heads and Scanners 78
13.4 System power requirements 79
14 Appendix D—Recommended tools 80
14.1 General 80
198 17-HRC104 201 PA9 5 (80)
1 Introduction
1.1 About This Manua l
This user manual describes how to plan, install, configure, test, operate and
maintain the Ericsson Mobile Advantage™ Wireless Office. Sections in this manual explain the hardware and software building blocks and the general specifications for the Mobile Advantage system.
This manual is developed and maintained in printable form and filtered into HyperText Markup Language (HTML) outputs suitable for Internet publication, printing, and CD-ROM delivery. In print format, acronyms and abbreviations are expanded when first used. All acronyms and abbreviations are explained in “Appendix B—Acronyms and Abbreviations”, on page 72. In the HTML format, all acronyms and abbreviations are hyper-linked to the appendix and references are linked to the sources.
General information for the configuration and use of TDMA-136 compatible mobile phones that function within the Mobile Advantage environment is provided in this manual. More specific information about compatible products can be obtained on-line on the Ericsson WEB page.
Writer’s Note:This document will contain generic specifications for the
1.2 Revision History
PA1—Chapters one through three are included in release PA1 for review. Other chapters are in progress but all information is not deemed reliable at this time. Other releases will be issued shortly.
PA2—Chapters one through three updated with specification data for tables. Chapters four and five in progress, Index for cables is in review. (10/27/98).
PA3—Chapters one through three updated after review on 10-30-98, Appendix A updated and reviewed.
PA4—Removed references to rack-mounted cabinet. Combined sections on Post Installation test and Integration and Test. Added version 2 (all software loaded at factory) in Installation section. Added Appendices B, C, D.
PA5—In progress—Editing Troubleshooting section, Recommended Tools. PA6—All edits included, rewrite of O&M section.
TDMA-136 mobile phones as well as a generic description of how to program a phone for use in DWOS. In the HTML version, there should be a link to the Ericsson WEB site that contains more specific information.
PA7—Contents from formal review conducted 12-04-98 included. PA8—Includes changes since 12-04-98 formal review. PA9—Additional updates from 01-06-99 meeting.
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1.3 How To Use This Manual
To effectively use this manual, personnel should be certified by Ericsson in the planning, installation, or operation and maintenance (O&M) of the Mobile Advantage system. This manual provides support and reference material for personnel performing the following functions:
• Mobile Advantage Supplier (System Supplier)—The Mobile Advantage
Supplier plans, delivers, and installs the Mobile Advantage system. The Mobile Advantage Supplier provides the help desk function to the Mobile Advantage Operator for analysis of system faults and system upgrades.
• Wireless Operator—The Wireless Operator owns the frequencies used by
Mobile Advantage. The Wireless Operator maintains the Mobile Advantage user information in the Public Land Mobile Network (PLMN) HLR. The Wireless Operator can also view and change the frequencies used by Mobile Advantage.
• Mobile Advantage Operator (System Operato r)—The Mobile Advantage
Operator maintains the Mobile Advantage system. The Mobile Advantage Operator manages O&M functions such as fault and performance monitoring, configuration, security, and accounting management.
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
• Mobile Advantage User Administrator (System Administrator)—The
Mobile Advantage User Administrator manages the Mobile Advantage user profiles, the addition or deletion of Mobile Advantage users or changing the user profiles.
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2 System Description
2.1 Overview
Mobile Advantage functions as an extension of wired communication systems with additional mobile capabilities. Wireless systems provide the same services as most commonl y used Private Branch Exchange (PBX), wi th the advantage of portable telephone capabilities. Mobile Advantage extends normal mobile systems functions to operate inside buildings, factories, and other internal sites.
Mobile Advantage mobile phones operate in either the 850 MHz (Cellular) or 1900 MHz Personal Communications Service (PCS) bands. To function in the Mobile Advantage environment, mobile phones must be compatible with the TDMA-136 standard protocol and have Adaptive Code Excited Linear Prediction (ACELP) speech capability. ACELP is a speech coding and decoding standard for mobile phones. For more information about the
TDMA-136 standard see “Appendix B—Acronyms and Abbreviations”, on page 72.
Mobile Advantage users within the Mobile Advantage area use a private numbering plan for calls to other Mobile Advantage users. Mobile Advantage users communicate with public telephones through a PBX link connected to the Public Switched Telephone Network (PSTN).
Mobile Advantage is associated with the Public Land Mobile Network (PLMN) where the users are defined as standard cellular or PCS subscribers in a Home Location Register (HLR). The subscription of users with the PLMN allows Mobile Advantage users to roam outside the Mobile Advantage area as normal cellular phones. The PLMN and the Mobile Advantage authenticate mobile phone users by accessing an HLR connected to the Common Channel Signaling System Number 7 (SS7) Network. To access the HLR, Mobile Advantage is connected to the SS7 Network through a WOS (Wireless Office System) SS7 Gateway link.
The associated PLMN notifies Mobile Advantage when a user is roaming in the network. Mobiles entering or initializing in the system area notify Mobile Advantage with a Private System Identification (PSID). Only mobile phones defined to the Mobile Advantage system can function fully within a Mobile Advantage environment.
Mobile Advantage can be configured to accept and transfer emergency calls, such as E911 calls, from any mobile phone operating within the Mobile Advantage coverage area. The mobile phone making the emergency call must be compatible with TDMA-136 standard protocol and have ACELP speech capability.
Mobile Advantage Operations, Administration, and Maintenance (O&M) functions are performed through World Wide Web (WWW) or host connections. The O&M Client application allows Mobile Advantage System Administrators to receive operational information and administer the system remotely.
The major physical components of the Mobile Advantage system are as
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User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
follows:
• Mobility Server—The Mobility Server is a commercial server running
Ericsson open and scalable software on the Windows NT 4.0 operating system. The Mobility Server connects to the Cellular Radio Exchange (CRE) for configuration and administration of the Radio Infrastructure (RI) and real-time tasks such as call switching.
The Mobility Server also provides the interfaces to the WOS SS7 Gateway and the Internet. The bearer for both interfaces is Transport Control Protocol/Internet Protocol (TCP/IP). The protocol to the SS7 network is ANSI-41 Rev D.
• Cellular Radio Exchange (CRE)—The CRE, directed by the Mobility
Server, provides the physical interface between mobile phones in the system area and the external PSTN through PBX links. Connections between mobile phones operating in the system area are switched within Mobile Advantage without accessing external networks. Mobile Advantage supports the following PBX links:
-
T1 links to PBXs compatible with the Lucent Technologies 4ESS or
5ESS-2000 switch as specified in Lucent document 235-900-342.
-
T1 links compatibly with AT&T network-side Primary Rate
Interface (PRI) as specified in (TR 41 459) protocol.
-
Links to PBXs (for example, the Ericsson MD110) using the QSIG
protocol.
• Radio Heads (RH)—RHs connect to the CRE for communications with
Mobile Advantage mobile phones. RHs are placed at positions within the Mobile Advantage area that provide maximum coverage and capacity. Using multiple redundant RHs in an area will increase call handling capabilities, as well as assuri ng continued ca ll processi ng cap abi lities in the event of a single RH unit failure.
• Scanners—Scanners also connect to the CRE and provide frequency
information for neighboring PLMN cells to Mobile Advantage. Information obtained by Scanners is used by the system to minimize interference from Mobile Advantage on PLMN frequencies.
• Mobile Phones—Mobile Advantage mobile phones are cellular or PCS
phones that are compatible with TDMA-136 standard protocol and capable of ACELP speech encoding.
2.2 Mobile Advantage Mobile Phone User Features
Within the Mobile Advantage area, a registered user has access to the following features:
• Personal Assistant (PA)—Allows the user the capability to change the
personal service profile. PA can be administered from any phone with voice menus or through a WWW interface. If PA is administered from a phone other than the user’s phone, a Personal Identification Number (PIN) code must be entered.
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• Follow Me—Allows the user to control the transfer of call service.
Follow me consists of the following functions:
-
Follow Me Out—The user can select to receive or not to receive calls placed to the user’s Direct In Dialing (DID) or DWOS User Number (DUN), after the user leaves the system area and enters the PLMN.
-
Follow Me In—The user can select to receive or not to receive calls placed to the user’s Mobile Direc tory Number (MDN) after the user leaves the PLMN and enters the Mobile Advantage area.
• Call Screening—Allows the user to decide from whom to accept calls.
• Call Forwarding—Allows the user to forward incoming calls to other
terminals. The forwarding destination is determined by the Mobile Advantage user’s current active profile.
• Caller’s Control—Allows the calling party to select a preferred
answering treatment from either a terminal or voice mail system.
• Three-Party Call Service—Allows a user to access Inquiry, Refer Back,
and Transfer features as follows:
-
Inquiry allows a user who is engaged in a two-party call to initiate a call to a third party.
-
Refer Back allows the controlling party engaged in a three-party call to switch between the active line and the held line.
-
Call Transfer allows the controlling party in a three-party call to transfer the call to the other users and disconnect.
• Call Waiting—Notifies the user engaged in a two-party call that there is
an incoming call waiting. The user may do any of the following:
-
Disconnect the active call and accept the incoming call.
-
Place the active call on hold and accept the incoming call.
-
Ignore the incoming call. The incoming call will be forwarded to the answering treatment defined with the PA.
• Calling Line Presentation and Restriction—Allows the calling number to
be presented to the user. If the calling party is a Mobile Advantage user calling a Mobile Advantage user within the system area, the DUN is presented. If the called party is outside the system area, the DID number is sent. Mobile Advantage can be configured to substitute a general number or restrict presentation of DID numbers.
• PBX Voice Mail—Allows calls to a user to be forwarded to the PBX
voice mail system. Mobile Advantage users can also use the voice mailbox when roaming in the PLMN.
Note: It is recommended the PLMN mailbox not be active when using
the Mobile Advantage PBX Voice Mail service.
• Message Waiting Indicator (MWI)—Allows users of the PBX Voice
Mail system to be notified with a visual message waiting indicator.
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User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
• Common Answering Position—Allows the Mobile Advantage
Administrator to define a common answering position destination to forward all calls when a user is not available. The destination could be a voice mail box or other service.
• Short Message Service (SMS)—Allows users in the Mobile Advantage
area to receive SMS messages delivered from the PLMN.
• Common Abbreviated Dialing—Allows the Mobile Advantage
Administrator to define a set of abbreviated numbers for all users.
• DTMF Generation—Allows users to generate Dual Tone
Multi-Frequency (DTMF) tones when calling.
• Concurrent Ringing—Allows simultaneous ringing of a user’s PBX
extension and mobile phone when a call is received within the Mobile Advantage area.
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2.3 Mobile Advantage Connections
Operations and Maintenance (O&M) of the Mobile Advantage system can be accomplished through Internet, Intranet, or local host connections. Figure 1 illustrates Mobile Advantage O&M and speech path connections. The PBX, WOS SS7 Gateway, and Internet Gateway are connections to external networks, not components of Mobile Advantage. The external networks, represented below the dotted line, are shown for clarity. The bold line indicates the speech path of a call placed by a mobile phone user within the Mobile Advantage area to a user roaming in the PLMN.
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Figure 1 Mobile Advantage
Mobile Advantage area
Ethernet 10Base-T
(CRE O&M Interface)
CRE
Ethernet 10Base-T
(SWB Control)
Mobile Advantage
T1/E1
Radio Link (RLINK)
P
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TCP/IP
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
Scanner
Mobility
Server
RH
RS-232
Interface
RH
Mobile Phone
Host Connection O&M Interface
Ethernet
10-BASE-T
PBX
PSTN
External
WOS SS7
Gateway
ANSI-41
SS7 network
Home Location Register (HLR)
Router
ANSI-41
WWW
O&M Client Interface
PLMN
Mobile Switching
Center
Internet
Gateway
Internet
Cellular
Antenna
DWOS Mobile Phone
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2.4 Mobile Advantage Unit Descriptions
2.4.1 Mobility Server
The Mobility Server is based upon a Pentium processor system with redundant drives, fans and power supplies. A four-port Network Interface Card (NIC), two serial ports, and an optional internal modem provide external access and communications. The Mobility Server performs call control, service control, and O&M functions in the Mobile Advantage system.
The Mobility Server is powered by redundant -48 Vdc power supplies. Indications of loss of a single power supply, fan module, or hard drive, and other failures are propagated to the Mobile Advantage Alarm Log and can be configured to signal audibly.
The following redundant Mobility Server units can be hot swapped, which means the Mobility Server does not have to be powered off to replace the units:
• Hard drives
• Power supplies
• Fans
The following Mobility Server host interfaces can also be replaced without powering off the Mobility Server:
• Keyboard
• Monitor
• Mouse
2.4.1.1 Mobility Server connections
The Mobility Server connects to the CRE with two Ethernet interfaces. The following cables are supplied with the system:
• A reverse CAT 5 cable with RJ-45 connectors is the physical link from a
Mobility Server NIC port to the RLU board in slot three of the main cabinet.
Note: A reverse CAT 5 cable is designed as a direct link between
Ethernet nodes. With a reverse CAT5 cable the receive (RXD) and transmit (TXD) wire pairs are swapped.
• A reverse CAT 5 cable with RJ-45 connectors is also the physical link
from a Mobility Server NIC port to the SwitchBoard (SWB) in slots 10 and 11 of the main cabinet.
The Mobility Server supports the following external connections:
• A link to the WOS SS7 Gateway to access HLRs in the PLMN network—
The physical interface is standard CAT 5 cable between a Mobility Server NIC port and a gateway in the SS7 network.
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• A link to the Internet or Intranet for O&M services— The physical
interface is a CAT 5 cable between a Mobility Server NIC port and the Internet gateway.
2.4.2 Cellular Radio Exchange (CRE)
The Mobile Advantage CRE consists of a main cabinet or a main and one auxiliary cabinet. The cabinets are identical and have 11 physical board slots each. A CRE main and one auxiliary cabinet are required to support the maximum simultaneous call capacity. In two-cabinet configurations, the cabinets are interconnected with a ribbon cable between the backplanes. Figure 2 is an example of a CRE main cabinet configuration.
2.4.2.1 CRE Connections
The CRE is connected to the Mobility Server with the two reverse CAT 5 Ethernet 10Base-T cables with RJ-45 connectors, supplied with the system. The cables connect to the RLU board in slot three and the SWB in slots 10 and 11 of the main cabinet.
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
Note: A reverse CAT 5 cable is designed as a direct link between Ethernet
nodes. With a reverse CAT5 cable the receive (RXD) and transmit (TXD) wire pairs are swapped.
Two internal E1 links connect the SWB to the Digital Traffic Unit (DTU) board in the CRE. The SWB also has connections for a maximum of six external E1 or T1 links to PBXs, Voice Mail, or other systems.
Two RLU telephony cables connect from all RLU boards to punch blocks. CAT 5 cables connect from the punch blocks to the RHs and Scanners.
Note: Do not connect any RLU cables to the RLU board in slot three of the
main cabinet. The RLU board in slot three of the main cabinet does not support links to the RHs or Scanners.
The CRE cabinets are individually powered by a -48 Vdc power source. Power is supplied by cables connected to the CRE Power Module (CPM) boards located in slot two of both the main and auxiliary cabinets. The CRE cabinets are also connected to Protective Earth (PE) ground by cables.
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Figure 2 CRE Main Cabinet Example
P
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123 4 5 6 9 1011
Scanner
CAT 5 Cables
RH
P
CPM
RLU RLU
RLU SPU
DTU
SWB
o
r t
s
E1 Link
S Y N C
1 2 3 4
E1 Link
5 6
RH
E1/T1 links
7 8
Earth
Ground
Cable
RLU Cables
Power
Cables
-48 Vdc Premise Power
WOS SS7 Link
WWW Link
Mobility Server
Ethernet Links
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2.4.2.2 CRE Component Descriptions
The component descriptions and slot assignments of the boards in the CRE main and auxiliary cabinets are as follows:
• The CRE backplanes have 11 connecting slots that route signal and
power busses to the boards. A ribbon cable connects the backplanes together in two-cabinet installations.
• The Synchronization (SYNC) board is inserted into slot one of the main
cabinet. The SYNC board provides system timing to all CRE boards except the SWB. Only the CRE main cabinet requires the SYNC board.
• The CRE Power Module (CPM) boards, located in slot two in both the
main and auxiliary cabinets, provide the power to all of the boards in each cabinet. The CPM and SYNC boards have the component side facing left when viewed from the front; all other boards have the component side facing right. The CPM boards convert the -48 Vdc local power input to +5 Vdc and +3 Vdc outputs to the power bus on the backplanes. The CPM boards also supply -48 Vdc to the SWB, SYNC board, and all Radio Link Unit (RLU) boards, except the RLU board in slot three.
• Radio Link Unit (RLU) boards receive clock signals from the backplane
and provide clock signal synchronization and data transfer to the Radio Heads (RH) and Scanners. RLUs perform pre-processing of Radio Network Control (RNC) measurements and TDMA-136 formatting.
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
Each RLU can be connected to a maximum of ei ght RHs or Scanners. A CRE can be configured with a maximum of four RLUs to support a total of 32 RHs or Scanners. RLUs supply remote power through CAT 5 cables to RHs mounted less than 800 meters (2640 feet) from the CRE. RLUs also provide remote power to Scanners located less than 1200 meters (3960 feet) from the CRE.
• The RLU board, located in slot three of the main cabinet, functions as a
central processor, providing Call Control, Radio Network Control, and O&M configuration to the CRE.
Note: Do not attach RLU cables to the connectors of an RLU board
when it is inserted in slot three of the main cabinet.
• The Signal Processing Unit (SPU) board performs the Digital Control
Channel Handler (DCCH) functions and Digital Traffic Control (DTC) handler functions. The DTC handler establishes and maintains traffic channels. A single SPU can process seven simultaneous calls. Additional SPUs can process eight simultaneous calls each. Using multiple SPU boards provides a pool of time slot handlers that are dynamically allocated to calls in progress. SPU boards also provide the following features:
-
Channel coding and decoding
-
Speech coding and decoding
-
Echo canceling
198 17-HRC104 201 PA9 17 (80)
• The Digital Trunk Unit (DTU) board, in slot nine of the main cabinet,
interfaces with two E1 links to the SWB board and decodes the speech and data busses. The two E1 links provide 60 full-duplex voice channels.
• The SWB, in slots 10 and 11 of the main cabinet, connects Mobile
Advantage to the local PBX and performs call switching. Up to six links are configurable between the SWB and the PBX. The physical interfaces between the SWB and the PBX are twisted pair, 120 ohm (E1) or 100 ohm (T1) balanced cables.
2.4.3 Radio Heads (RH)
Ericsson recommends vertical mounting of RHs on internal walls in the Mobile Advantage coverage area. Each RH provides five transceivers for air interface communications with mobile phones using the TDMA-136 protocol. In a typical office environment, an RH has a typical coverage radius of 40 meters (132 feet).
RHs are connected with CAT 5 cables through punch blocks to RLU boards in the CRE. RHs receive control, data, and power through the RLU boards if located less than 800 meters (2640 feet) from the CRE. RHs with longer cable runs (up to1600 meters or 5280 feet) from the CRE, must be provided with a 115 Vac to 24 Vdc power converter.
2.4.4 Scanners
Scanners connect to RLU boards in the CRE and provide neighboring cell PLMN frequency usage information to Mobile Advantage. Information from the Scanners is used by Mobile Advantage to minimize interference on Mobile Advantage and PLMN frequencies.
Scanners are connected with CAT 5 cables through punch blocks to RLU boards in the CRE. Scanners receive control, data, and power through the RLU boards if located less than 1200 meters (3960 feet) from the CRE. Scanners with longer cable runs (up to1600 meters or 5280 feet) from the CRE must be provided with a 115 Vac to 24 Vdc power converter.
2.4.5 Mobile Advantage Mobile Phones
Mobile Advantage mobile phones are cellular or PCS phones that are compatible with TDMA-136 standard protocol and capable of ACELP speech encoding. Generic instructions for programming the mobile phones to function within the Mobile Advantage environment is provided in this section. More specific information about compatible products can be obtained on-line on the Ericsson WEB page.
Writer’s Note:This document will contain generic specifications for the
TDMA-136 mobile phones as well as a generic description of how to program a phone for use in DWOS. In the HTML version, there should be a link to the Ericsson WEB site that contains more specific information.
18 (80) 198 17-HRC104 201 PA9
3 Site Planning
Site planning evaluates the capacity needs of the Mobile Advantage system and optimum placement of the components. The Mobile Advantage coverage area is considered to be one cell.
In the planning phase the customer must complete a Site Planning Checklist provided by Ericsson. Alternately, the customer can order a Site Survey to be performed by Ericsson trained personnel to fulfill the following site planning requirements:
• Determine the amount, location, and power requirements of the Mobility
• Define the external links and protocols required for Mobile Advantage to
• Specify all cabling requirements within and external to the Mobile
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
Server, the CRE cabinets, Radio Heads, and Scanners.
communicate with the Private Telephone Network (PTN), the Internet, and the Public Land Mobile Network (PLMN).
Advantage system. List what components are supplied with the Mobile Advantage system and what components are to be purchased locally.
• List any environmental requirements, distance limitations, and capacity
determinations.
3.1 Site Capacity and Reliability
The maximum physical coverage area and simultaneous call capacity requirements determine unit configuration. A fully configured system can process a maximum of 60 simultaneous calls.
Mobile Advantage can process 45 Erlang traffic at a Grade of Service (GOS) of 0.5 percent. A GOS refers to the percentage of calls that could be blocked during maximum traffic times. For example, at a GOS of 0.5 percent, Mobile Advantage can process calls for up to 448 users if traffic for each user is approximately 100 mErlang.
When estimating the maximum capacity in call processing of a Mobile Advantage site, allowances should be made for redundant capacity. For example, the call processing capabilities of S PU boards are added t ogether in the CRE to provide a pool of processing resources. When determining the number of required SPU boards, allowing for extra capacity will, in the event of an SPU board failure, maintain the GOS.
Estimated internal and external traffic requirements will determine the required number of physical links from the CRE to PBXs or other units.
3.2 Mobility Server Planning
The Mobility Server component in Mobile Advantage is specified by Ericsson to support all possible configurations of the system. Site planning for the Mobility Server consists of estimating the power requirements and connections to Mobile Advantage components and external links. All TCP/IP connections information, including IP addresses of the connecting ports, must
198 17-HRC104 201 PA9 19 (80)
be entered in the Site Planning Checklist for use in the Mobile Advantage installation and initialization phases.
The Mobility Server is powered by redundant -48 Vdc power supplies. The type and location of all power requirements must be predetermined during the site planning.
3.2.1 Mobility Server Connections
The following connection information is entered into the Site Planning Checklist during the Mobile Advantage site planning phase:
• To enable remote WWW O&M access to Mobile Advantage, a TCP/IP
connection to the Internet on a local LAN, dedicated router, or communications server must be supplied.
• To access the HLR in the SS7 network, a connection must be supplied
from the Mobility Server to a WOS SS7 Gateway Server. The protocol is ANSI-41 Rev D; the bearer is TCP/IP on Ethernet.
• Two Ethernet connections are required from the Mobility Server to the
CRE main cabinet. Two reverse CAT 5 cables with RJ-45 connectors are supplied with the system. The Ethernet connections are from the Mobility Server to:
-
the RLU board inserted in slot three of the CRE main cabinet, and
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the SWB inserted in slot 10 and extending over slot 11 of the main cabinet. The SWB board requires two slots spaces.
3.3 Cellular Radio Exchange (CRE) Planning
The CRE for Mobile Advantage is configured in one or two cabinets. The CRE auxiliary cabinet must be insta lled to the right of the CRE main cabinet. The quantity of cabinets required must be determined in the site planning phase.
Note: When installing single-cabinet systems allocate space to the right of
the main cabinet for an expansion cabinet.
In Mobile Advantage a main and one auxiliary cabinet can support the maximum quantity of system boards (SPU and RLU). Site planning determines the optimum quantity of each board. Adding extra SPUs, RLUs, or RHs to Mobile Advantage can provide redundancy in coverage and processing capabilities in event of failure. The maximum number of Mobile Advantage CRE boards are as follows:
• Eight SPU boards—The first SPU board can process seven simultaneous
calls. Each additional board can process eight calls except the eighth which can process five calls (7+8+8+8+8+8+8+5 = 60). Eight SPU boards provide a processing pool capable of handling a total of 60 simultaneous calls.
• Four RLU boards—Each RLU board can support a maximum of eight
RHs. Each RH can process a maximum of 14 simultaneous calls.
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3.3.1 CRE connections
The amount, type, and location of the CRE connections are determined in the site planning phase. The following information is considered when completing the Site Planning Checklist:
• Mobile Advantage supports a maximum of six external T1 or E1 trunk
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
Note: The amount of RLU boards configured will determine the amount
of punch blocks required. Each RLU board is cabled to one punch block. Placement of the punch blocks is also determined during site planning.
links between the SWB and PBXs. Note: E1 or T1 cables, 15 meters (50 feet) in length, are supplied with
the system for connections to equipment located in the same room as the CRE. The connectors of the cables supplied by Ericsson meet specific shielding requirements to comply with radiated emissions regulations. If the location of PBXs require extensions, they must be connected to the cables supplied by Ericsson, to meet requirements.
• Two standard RLU telephony cables are supplied for use between each
configured RLU board and the punch blocks. Each punch block is connected to a maximum of eight RHs or Scanners with standard CAT 5 cables.
Note: When connecting the cables to RLU boards consider whether
redundant RH coverage is necessary. When locating an RH near another RH, to provide for redundant coverage in an area, do not connect to the same RLU board. The failure of a single RLU would not cause loss of coverage if redundant RHs are connected to different boards.
• -48 Vdc power cables are supplied for each cabinet.
• A PE ground cable is supplied for each cabinet.
• Two Ethernet connections are required from the Mobility Server to the
CRE main cabinet. Reverse CAT 5 cables with RJ-45 connectors are supplied with the system. The CAT 5 cables are connected from the Mobility Server to the following:
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The RLU board located in slot three of the CRE main cabinet.
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The SWB in the CRE main cabinet. The SWB is inserted in slot 10
and extends over slot 11 of the main cabinet.
3.4 RH Planning
The number of required Radio Heads is determined by analyzing physical site requirements and user location estimates. Estimating the location and number of RHs is determined using site floor plans. A method of determining the level of external radio interference is used. The level of radio interference measured
198 17-HRC104 201 PA9 21 (80)
during site planning will effect the planned number of RHs, the RH transmitted power, and maximum mobile phone power. Higher external radio interference levels require more RHs.
The number of RHs must be sufficient to perform the following:
• Provide the necessary carrier to noise levels ratio
• Allow low enough transmitted power level to minimize interference to
external systems
• Provide call completion without blocking for the estimated number of
users in all areas. An RH can be mounted near another RH in areas where large concentrations of users are predicted or redundant coverage is needed.
3.4.1 Estimating Radio Coverage
The customer’s desired radio coverage area must be understood before a system quotation can be provided. Radio coverage is provided by the strategic placement of Radio Heads and Scanners. The Mobile Advantage system can support up to 32 Radio Devices: RHs and Scanners. Coverage can be estimated using the following three methods, shown in order of increasing reliability.
1. Sq uare foota ge estima te
The configuration provides an estimate of how many square feet a given number of Radio Heads will cover. Although it is possible to provide budgetary quotations from square footage alone, this is not recommended.
2. Floor plans
If provided with floor plans, Sales Engineering can formulate a more accurate estimate of how many Radio Heads and Scanners are required to cover a given facility. Quotations based solely upon floor plans must include a provision stating to the customer that the actual number of Radio heads required may vary (higher or lower). Ericsson will not guarantee coverage based solely upon floor plans. If a firm quotation is required, a Site Survey must be ordered from the Ericsson Service Group.
3. Site Survey
A Site Survey is the most accurate way to assess needed radio coverage. Using the TEMS™ radio Site Survey tool, an Ericsson-trained technician will walk through a customer’s facility taking measurements to ensure the optimal placement of Radio Heads. A Site Survey will usually be employed in the later stages of the sales process but prior to making any contractual agreements.
3.4.2 RH Connections
RHs are connected by solid wire CAT 5 cables to designated pins on the punch blocks. For more information about RH cabling see “Appendix A— Cabling and Connectors”, on page 58.
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Note: Local RHs located less than 800 meters (2640 feet) from the CRE
3.5 Scanner Planning
The number and location of required Scanners are determined by analyzing physical site requirements and macro cell interference studies. A mini mum of two Scanners are required for each Mobile Advantage system.
3.5.1 Scanner Connections
Scanners are connected by solid wire CAT 5 cables to designated pins on the
punch blocks. For more information about Scanner cabling see “Appendix A—Cabling and Connectors”, on page 58.
Note: Scanners located less than 1200 meters (3960 feet) from the CRE
User Manual—Mobile Advantage Wireless Office (DWOS 1.0)
receive power from the RLU boards through the CAT 5 cables. RHs located 800 to 1600 meters (2640 to 5280 feet) from the CRE must have a 115 Vac outlet located nearby.
receive power from the RLU boards through the CAT 5 cables. Scanners located 1200 to 1600 meters (3960 to 5280 feet) from the CRE are powered by a 24 Vdc converter and must have a 115 Vac outlet located nearby.
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4 Site Preparation
This section provides site preparation requirements for Mobile Advantage components.
Note: After following the procedures in Site Preparation go to Chapter 5,
“Installation,” on page 27 followed by Chapter 6, “Integration and Test,” on page 36, to complete the Mobile Advantage installation.
4.1 Environmental Requirements
CRE cabinets are to be mounted on an indoor wall on a panel that is secured to wall studs. The premises must comply with the following prerequisites:
• The ambient air must be free of dust, smoke, gases and acid fumes.
• The temperature range where the CRE and Mobility Server are located
must be between +5°C and +40°C and relative humidity may vary between 15% and 80%.
• The temperature range where the RHs and Scanners are located must be
between 0°C and +55°C with a relative humidity of up to 100% non-condensing.
Note: Sensors within the RHs and Scanners monitor temperat ure levels
• The relationship between temperature and air humidity in the Mobile
Advantage area must not cause condensation.
• The CRE should not be exposed to direct sunlight
• Cables should run into the CRE from below the cabinet to ensure
sufficient air flow and space.
If batteries are in the room where Mobile Advantage components are located, they must be of such type that does not produce gases or acid fumes.
Note: Auxiliary cabinets must be installed to the right of the main cabinet
(cabinet one). When installing a single-cabinet or a two-cabinet system, leave room to the right for adding expansion cabinets.
4.2 Power Requirements
The following power sources are required.
• The Mobility Server is powered with a -48 Vdc power source. The -48
Vdc power is supplied from the PBX battery regulated supply or from a separate Uninterruptible Power Source (UPS).
and will shut down at elevated levels.
• The CRE must be supplied with -48Vdc from the PBX battery regulated
supply or from a separate UPS.
• Each RH or Scanner requires a power source. RHs located less than 800
meters (2640 feet) from the CRE, receive power remotely from the RLU boards through the CAT 5 cables. Scanners located less than 1200 meters
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