520-09120806 Editor TIA-1149!0!1 CMASoverCDMA Baseline

TIA-1149-0-1

CONTENTS

i

FOREWORD .................................................................................................................. vii 1

NOTES ........................................................................................................................... ix 2

REFERENCES ................................................................................................................ ix 3

1 General ..................................................................................................................... 1-1 4

1.1 Terms and Acronyms ........................................................................................... 1-1 5

1.1.1 Terms ............................................................................................................ 1-1 6

1.2 Signaling Architecture .......................................................................................... 1-2 7

2 CMAS Reference Architecture For CDMA .................................................................... 2-1 8

2.1 Network Entities .................................................................................................. 2-1 9

2.1.1 Federal Alert Gateway .................................................................................... 2-1 10

2.1.2 CMSP Gateway ............................................................................................... 2-2 11

2.1.3 Message Center (MC) ...................................................................................... 2-2 12

2.1.4 Mobile Station (MS) ........................................................................................ 2-2 13

2.1.5 Mobile Switching Center (MSC) ....................................................................... 2-2 14

2.1.6 Short Message Entity (SME) ........................................................................... 2-2 15

2.2 Reference Points .................................................................................................. 2-3 16

2.2.1 Reference Point C ........................................................................................... 2-3 17

2.2.2 Reference Point M1 ........................................................................................ 2-3 18

2.2.3 Reference Point Q ........................................................................................... 2-3 19

2.2.4 Reference Point Um ......................................................................................... 2-3 20

2.2.5 Reference Point E ........................................................................................... 2-3 21

3 Network Support For Reference Point E ...................................................................... 3-1 22

3.1 CMSP Gateway Support for Reference Point E ....................................................... 3-1 23

3.2 MC Support for Reference Point E ........................................................................ 3-2 24

4 SMS Broadcast Message For CMAS Application .......................................................... 4-1 25

4.1 Mapping of CMAS Parameters .............................................................................. 4-1 26

4.2 Mapping of CMAS Message Structure to SMS Broadcast Message .......................... 4-3 27

4.3 CMAS Message .................................................................................................... 4-5 28

5 Requirements for Mobile Station CMAS Operation ...................................................... 5-1 29

5.1 Channel............................................................................................................... 5-1 30

5.2 Security ............................................................................................................... 5-1 31

TIA-1149-0-1

CONTENTS

ii

5.3 Duplicate Detection ............................................................................................. 5-1 1

5.4 Mobile Station Message Parsing Requirements ..................................................... 5-1 2

6 Requirements for Base Station CMAS Operation ........................................................ 6-1 3

4

TIA-1149-0-1

FIGURES

iii

Figure 2-1. CMAS Reference Architecture for CDMA ...................................................... 2-1 1

Figure 4-1. CMAS Message ........................................................................................... 4-4 2

Figure 4-2. CMAS Message Structure ............................................................................ 4-4 3

4

5

TIA-1149-0-1

FIGURES

iv

No text.1

TIA-1149-0-1

TABLES

v

Table 3-1. SMSDeliveryPointToPoint INVOKE Parameter Setting for CMSP Gateway ....... 3-1 1

Table 3-2. SMSDeliveryPointToPoint INVOKE Parameter Setting for MC ......................... 3-3 2

Table 4-1. Mapping Reference Point B Elements to Reference Point C and E 3

Elements ................................................................................................................ 4-1 4

Table 4-2. SMS Broadcast Field mapping ...................................................................... 4-5 5

Table 4-3. E_RECORD_TYPE Encoding ......................................................................... 4-6 6

Table 4-4. CMAE_category Encoding ............................................................................. 4-8 7

Table 4-5. CMAE_response_type Encoding 8 .................................................................... 4-8

Table 4-6. CMAE_severity Encoding .............................................................................. 4-9 9

Table 4-7. CMAE_urgency Encoding .............................................................................. 4-9 10

Table 4-8. CMAE_certainty Encoding ............................................................................ 4-9 11

Table 4-9. CMAE_expires Encoding ............................................................................. 4-10 12

13

14

TIA-1149-0-1

TABLES

vi

No text. 1

TIA-1149-0-1

FOREWORD

vii

(This foreword is not part of this Standard) 1

This Standard was prepared by Telecommunications Industry Association (TIA). The 2

standard provides a specification for Commercial Mobile Alert Service (CMAS) over CDMA 3

systems. 4

5

TIA-1149-0-1

SCOPE

viii

The scope of this document covers support for Commercial Mobile Alert Service (CMAS). 1

The network entities and associated reference points that comprise the CMAS Reference 2

Architecture for CDMA are included. The reference architecture, as defined herein, is 3

intended to provide a level of abstraction that may facilitate the specification of messages 4

and protocols within. As such, implementations may vary with respect to how the 5

functional entities are distributed among various physical units. In cases where functional 6

entities are combined in the same physical equipment, the reference points between those 7

entities become internal, and need not adhere to interface standards. 8

TIA-1149-0-1

NOTES

ix

1. Compatibility, as used in connection with cdma2000®1

2. The term “dual-mode mobile station” indicates a mobile station capable of both 5

analog (FM) and spread spectrum (CDMA) operation. 6

, is understood to mean: any 1

cdma2000 mobile station is able to place and receive calls in cdma2000 and IS-95 2

systems. Conversely, any cdma2000 system is able to place and receive calls for 3

cdma2000 and IS-95 mobile stations. 4

3. This compatibility specification is based upon spectrum allocations that have been 7

defined by various governmental administrations. 8

4. Each mobile station is assigned a single unique 32-bit binary serial number (ESN) or 9

a single unique 56-bit binary serial number (MEID) that cannot be changed by the 10

subscriber without rendering the mobile station inoperative. 11

5. “Base station” refers to the functions performed in the fixed network. These 12

functions are typically distributed among cells, sectors, and mobile switching 13

centers. 14

6. This standard uses the following verbal forms: “Shall” and “shall not” identify 15

requirements strictly to be followed in order to conform with the standard and from 16

which no deviation is permitted. “Should” and “should not” indicate that one of 17

several possibilities is recommended as particularly suitable, without mentioning or 18

excluding others; that a certain course of action is preferred but not necessarily 19

required; or that (in the negative form) a certain possibility or course of action is 20

discouraged but not prohibited. “May” and “need not” indicate a course of action 21

permissible within the limits of the standard. “Can” and “cannot” are used for 22

statements of possibility and capability, whether material, physical, or causal. 23

7. Footnotes appear at various points in this specification to elaborate and further 24

clarify items discussed in the body of the specification. 25

8. Unless indicated otherwise, this document presents numbers in decimal form. 26

Binary numbers are distinguished in the text by the use of single quotation marks. 27

9. The following operators define mathematical operations: 28

× indicates multiplication. 29

x indicates the largest integer less than or equal to x: 1.1 = 1, 1.0 = 1. 30

x indicates the smallest integer greater or equal to x: 1.1 = 2, 2.0 = 2. 31

|x| indicates the absolute value of x: |-17| = 17, |17| = 17. 32

⊕ indicates exclusive OR (modulo-2 addition). 33

1 “cdma2000® is the trademark for the technical nomenclature for certain specifications and standards of the Organizational Partners (OPs) of 3GPP2. Geographically (and as of the date of publication), cdma2000® is a registered trademark of the Telecommunications Industry Association (TIA-USA) in the United States.”

TIA-1149-0-1

NOTES

x

min (x, y) indicates the minimum of x and y. 1

max (x, y) indicates the maximum of x and y. 2

x mod y indicates the remainder after dividing x by y: x mod y = x - (y × x/y). 3

4

TIA-1149-0-1

REFERENCES

xi

The following standards contain provisions which, through reference in this text, constitute 1

provisions of this Standard. At the time of publication, the editions indicated were valid. 2

All standards are subject to revision, and parties to agreements based on this Standard are 3

encouraged to investigate the possibility of applying the most recent editions of the 4

standards indicated below. 5

6

[1] TIA-EIA-IS-2000.1, Introduction to cdma2000 Standard for Spread Spectrum 7

Systems. 8

[2] TIA/EIA/IS-2000.2, Physical Layer Standard for cdma2000 Spread Spectrum 9

Systems 10

[3] TIA/EIA/IS-2000.3, Medium Access Control (MAC) Standard for cdma2000 Spread 11

Spectrum Systems 12

[4] TIA/EIA/IS-2000.4, Signaling Link Access Control (LAC) Standard for cdma2000 13

Spread Spectrum Systems 14

[5] TIA-EIA-IS-2000.5, Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread 15

Spectrum Systems 16

[6] TIA/EIA/IS-2000.6, Analog Signaling Standard for cdma2000 Spread Spectrum 17

Systems 18

[7] TIA/EIA-637, Short Message Services for Spread Spectrum Cellular Systems 19

[8] Common Cryptographic Algorithms, Revision C, 1997. An EAR-controlled 20

document subject to restricted distribution. Contact the Telecommunications 21

Industry Association, Arlington, VA. 22

[9] Interface Specification for Common Cryptographic Algorithms, Rev C, 1997. 23

Contact the Telecommunications Industry Association, Arlington, VA. 24

[10] TIA/EIA/TSB58, Administration of Parameter Value Assignments for TIA/EIA 25

Wideband Spread Spectrum Standards (Informative Reference) 26

[11] Commercial Mobile Alert Service Architecture and Requirements Version 1.0, FCC 27

Commercial Mobile Service Alert Advisory Committee 28

[12] TIA-41-E, Radio Telecommunications Intersystem Operations, Telecommunications 29

Industry Association 30

[13] TIA/EIA/IS-824, Generic Broadcast Teleservice Transport Capability - Network 31

Perspective; Telecommunications Industry Association 32

[14] Common Alerting Protocol, v. 1.1, OASIS Standard CAP-V1.1, October 2005. 33

Organization for the Advancement of Structured Information Standards 34

[15] ATIS-TIA-J-101, Joint ATIS/TIA CMAS Federal Alert Gateway to CMSP Gateway 35

Interface Specification 36

37

TIA-1149-0-1

REFERENCES

xii

No text. 1

0BGeneral TIA-1149-0-1

1-1

1 GENERAL 1

This section defines the terms and numeric indications used in this document. This section 2

also describes the general signaling architecture. 3

1.1 Terms and Acronyms 4

1.1.1 Terms 5

AMBER. America's Missing: Broadcast Emergency Response 6

Base Station. A fixed station used for communicating with mobile stations. Depending 7

upon the context, the term base station may refer to a cell, a section with a cell, an MSC, or 8

other parts of the wireless system. 9

Broadcast. The bearer layer mechanism that is used to deliver SMS messages on the 10

Paging Channel, Primary Broadcast Control Channel, or on the Forward Traffic Channel to 11

all available mobile stations. 12

Broadcast Messaging Service. A teleservice that allows an SMS message to be sent to all 13

mobile stations. 14

BS. Base Station 15

CAP. Common Alerting Protocol as defined [14] 16

CDMA. Code Division Multiple Access 17

CMA. Commercial Mobile Alert 18

CMAC. Commercial Mobile Alert C interface 19

CMAE. Commercial Mobile Alert E interface 20

CMAM. Commercial Mobile Alert Message 21

CMAS. Commercial Mobile Alert Service 22

CMSAAC. Commercial Mobile Service Alert Advisory Committee 23

CMSP. Commercial Mobile Service Provider 24

CTIA. Cellular Telecommunications Industry Association 25

GNIS. Geographic Names Information System 26

MAP. Mobile Application Part 27

MC. Message Center 28

MS. Mobile Station 29

MSC. Mobile Switching Center 30

Network. A network is a subset of a wireless system, such as an area-wide cellular 31

network, a private group of base stations, or a group of base stations set up to handle a 32

special requirement. A network can be as small or as large as needed, as long as it is fully 33

contained within a system. See also System. 34

TIA-1149-0-1 0BGeneral

1-2

SMDPP. SMSDeliveryPointToPoint INVOKE 1

SMS. Short Message Service 2

1.2 Signaling Architecture 3

See [1] through [6] for the Signaling Architecture. 4

5

1BCMAS Reference Architecture For CDMA TIA-1149-0-1

2-1

2 CMAS REFERENCE ARCHITECTURE FOR CDMA 1

Figure 2-1 presents the network entities and associated reference points that comprise the 2

CMAS Reference Architecture for CDMA. The applicable network entities are represented 3

by squares. The applicable reference points of the CDMA wireless network reference model 4

are represented by circles and are defined in the TIA Wireless Network Reference Model2

[11] . 5

The ‘C’ and ‘E’ reference points are defined in . 6

The reference architecture, as defined herein, is intended to provide a level of abstraction 7

that may facilitate the specification of messages and protocols within. As such, 8

implementations may vary with respect to how the functional entities are distributed among 9

various physical units. In cases where functional entities are combined in the same 10

physical equipment the reference points become internal, and need not adhere to interface 11

standards. 12

13

Federal Alert

Gateway

C

CMSPGateway

MC MSCQM1 MSUm

E

Alert Aggregator

B

14

Figure 2-1. CMAS Reference Architecture for CDMA 15

2.1 Network Entities 16

A network entity represents a group of functions, not a physical device. The physical 17

realization is an implementation issue; a manufacturer may choose any physical 18

implementation of network entities, either individually or in combination, as long as the 19

implementation meets the functional requirements. Sometimes, for practical reasons, the 20

functional network entity is a physical device. The Mobile Station (MS) is an example. 21

2.1.1 Federal Alert Gateway 22

The Federal Alert Gateway is the responsibility of the authorized government entity. See 23

[11] for the functions of the Federal Alert Gateway. 24

2 TIA-100- A-1[E], Wireless Reference Network Model; 2006.

TIA-1149-0-1 1BCMAS Reference Architecture For CDMA

2-2

2.1.2 CMSP Gateway 1

The CMSP Gateway is the responsibility of the Commercial Mobile Service Provider (CMSP). 2

The CMSP Gateway supports the “C” interface and associated protocols between the Federal 3

Alert Gateway and the CMSP Gateway. 4

From the perspective of the CMSP network, the CMSP Gateway performs the following 5

functions (see [11]): 6

• Management of Commercial Mobile Service Provider elections to support CMAS alert 7

services within the Commercial Mobile Service Provider’s service areas. 8

• Determination if the CMSP has elected to offer CMAS alert services within the specified 9

alerting area. 10

• Determination of which delivery technology or delivery technologies will be utilized for 11

the transmission of CMAS alert messages within the specified alerting area. 12

• Map the alert area of the CMAS alert message into the associated set of cell sites / 13

paging transceivers. 14

• Manage and execute CMAS alert retransmission subject to delivery technology capability 15

and CMSP policy. 16

As defined in this document, the CMSP Gateway functions as a Short Message Entity (SME) 17

in its interaction with the network entities in the CMSP network. 18

2.1.3 Message Center (MC) 19

The MC is an entity that stores and forwards short messages. The MC may also provide 20

supplementary services for Short Message Service (SMS). 21

2.1.4 Mobile Station (MS) 22

A wireless terminal used by subscribers to access network services over a radio interface. 23

The MS is the interface equipment used to terminate the radio path at the subscriber. 24

2.1.5 Mobile Switching Center (MSC) 25

The MSC switches circuit mode MS originated or MS terminated traffic. An MSC is usually 26

connected to at least one Base Station3

2.1.6 Short Message Entity (SME) 30

. It may connect to the other public networks 27

(PSTN, ISDN, etc.), other MSCs in the same network, or MSCs in different networks. The 28

MSC may store information to support these capabilities. 29

The SME is an entity that composes and decomposes short messages. A SME may, or may 31

not be located within, and be indistinguishable from, an HLR, MC, VLR, MS, or MSC. 32

3 For simplicity, Base Stations are not shown in the Reference Architecture (see [13] information flows). There are no Base Station related reference points affected by CMAS.

1BCMAS Reference Architecture For CDMA TIA-1149-0-1

2-3

2.2 Reference Points 1

Reference points are conceptual points that define logical interfaces between functional 2

groups. A reference point is not necessarily a physical interface. A reference point only 3

becomes a physical interface when the network entities on either side of it are contained in 4

different physical devices. 5

2.2.1 Reference Point C 6

Reference Point C is the interface between the Federal Alert Gateway and the CMSP 7

Gateway. See [11]. 8

2.2.2 Reference Point M1 9

Reference Point M1 is the interface between the SME and the MC. See [12]. 10

2.2.3 Reference Point Q 11

Reference Point Q is the interface between the MC and the MSC. See [12]. 12

2.2.4 Reference Point Um 13

Reference Point Um is the interface between the BS and the MS, which corresponds to the 14

air interface. See [1]. 15

2.2.5 Reference Point E 16

Reference Point E is defined in [11] and corresponds to the Um Reference point. 17

18

19

20

TIA-1149-0-1 1BCMAS Reference Architecture For CDMA

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No text. 1

2BNetwork Support For Reference Point E TIA-1149-0-1

3-1

3 NETWORK SUPPORT FOR REFERENCE POINT E 1

Broadcast SMS is used to transmit a Commercial Mobile Alert (CMA) to MSs in the 2

designated radio coverage area (e.g., cell sites). Network support for Broadcast SMS is 3

specified in [12]. 4

3.1 CMSP Gateway Support for Reference Point E 5

In response to an Alert Message received from the Federal Alert Gateway, the CMSP 6

Gateway determines if the CMSP has elected to offer CMAS alert services within the 7

designated alerting area. The CMSP Gateway maps the designated alerting area into the 8

associated radio coverage area (set of cell sites). The CMSP Gateway constructs a short 9

broadcast message based on the received Alert Message, and as a SME, transmits the short 10

message to the MC associated with a designated radio coverage area. 11

The CMSP gateway may also manage and execute short message retransmissions subject to 12

delivery technology and CMSP policy. 13

The interface between the CMSP Gateway and the MC is outside the scope of this 14

document. 15

As an example, the CMSP Gateway may use the MAP SMSDeliveryPointToPoint INVOKE 16

(SMDPP) operation (Broadcast Variant) to send the broadcast message to the MC. The 17

Table 3-1 specifies the parameter settings for this operation (see [12]). Each parameter is 18

shown as not included (N), optional (O) or required (R). 19

20

Table 3-1. SMSDeliveryPointToPoint INVOKE Parameter Setting for CMSP Gateway 21

SMDPP Parameter NOR Parameter Setting

SMS_BearerData R Constructed by the CMSP Gateway from applicable parameters in the CMA.

SMS_TeleserviceIdentifier R Include a NULL (zero length) parameter.

BroadcastCategory R Set to one of the CMAS Broadcast Service Category as defined in [10].

BroadcastCategorySpecificInformation N Not applicable for CDMA.

BroadcastMessageIdentifier R Set to identify the specific Broadcast Message from the particular SME (CMSP Gateway).

BroadcastMessagePriority R Set to “Emergency”.

BroadcastMessageStatus O Include to indicate the status of a broadcast message. If absent, treat as “new” message. See Note-1.

BroadcastPeriodicity O Include if applicable to indicate periodicity of broadcast. See Note-1.

TIA-1149-0-1 2BNetwork Support For Reference Point E

3-2


BroadcastServiceGroup N This parameter is not applicable for CDMA.

BroadcastZoneIdentifier O If included, this parameter is set to indicate a list (one or more) Target Cell IDs OR a list of Zone Area IDs. See Note-2.

BroadcastZoneIdentifierList O If included, this parameter is set to indicate a list (one or more) Target Cell IDs AND a list of Zone Area IDs. See Note-2.

PreferredLanguageIndicator R Set to indicate the Alert Message language.

SMS_DestinationAddress N Not applicable.

SMS_OriginalOriginatingAddress R Set to identify the CMSP Gateway.

SMS_OriginalOriginatingSubaddress N Not applicable.

SMS_OriginatingAddress N Not applicable.

Note 1: This parameter is not included when the CMSP Gateway manages and executes 1

retransmission of the SMDPP. 2

Note 2: These parameters are mutually exclusive. If neither parameter is present, the alert 3

message is broadcast over the entire domain of the MSC. 4

5

3.2 MC Support for Reference Point E 6

In response to the SMDPP received from the CMSP Gateway (SME), the MC sends an 7

SMDPP to the MSC associated with a specific broadcast area. The MC may also manage 8

and execute short message retransmission to the MSC subject to delivery technology and 9

CMSP policy. The MC can only manage retransmission if the BroadcastPeriodicity 10

parameter is received in the SMDPP from the CMSP Gateway. 11

The Table 3-2 specifies the parameter settings for the SMDPP (Broadcast Variant) sent by 12

the MC to the MSC (see [12]). Each parameter is shown as not included (N), optional (O) or 13

required (R). 14

15

2BNetwork Support For Reference Point E TIA-1149-0-1

3-3

Table 3-2. SMSDeliveryPointToPoint INVOKE Parameter Setting for MC 1


SMS_BearerData R Constructed based on applicable parameters in the CMA.

SMS_TeleserviceIdentifier R Include a NULL (zero length) parameter.

BroadcastCategory R Set to one of the CMAS Broadcast Service Category as defined in [10].

BroadcastCategorySpecificInformation N Not applicable for CDMA.

BroadcastMessageIdentifier R Set to identify the specific Broadcast Message from the particular SME (CMSP Gateway).

BroadcastMessagePriority R Set to “Emergency”.

BroadcastMessageStatus O Include to indicate the status of a broadcast message. If absent, treat as “new” message. See Note-1.

BroadcastPeriodicity O Include if applicable to indicate periodicity of broadcast. See Note-1.

BroadcastServiceGroup N This parameter is not applicable for CDMA.

BroadcastZoneIdentifier O If included, this parameter is set to indicate a list (one or more) Target Cell IDs OR a list of Zone Area IDs. See Note-2.

BroadcastZoneIdentifierList O If included, this parameter is set to indicate a list (one or more) Target Cell IDs AND a list of Zone Area IDs. See Note-2.

PreferredLanguageIndicator R Set to indicate the Alert Message language.

SMS_DestinationAddress N Not applicable.

SMS_OriginalOriginatingAddress R Set to identify the CMSP Gateway.

SMS_OriginalOriginatingSubaddress N Not applicable.

SMS_OriginatingAddress O If included, set to identify the MC.

Note 1: This parameter is not included when the MC manages and executes retransmission 2

of the SMDPP. 3

Note 2: These parameters are mutually exclusive. If neither parameter is present, the alert 4

message is broadcast over the entire domain of the MSC. 5

6

7

TIA-1149-0-1 2BNetwork Support For Reference Point E

3-4

No text. 1

3BSMS Broadcast Message For CMAS Application TIA-1149-0-1

4-1

4 SMS BROADCAST MESSAGE FOR CMAS APPLICATION 1

4.1 Mapping of CMAS Parameters 2

Table 4-1 defines the mapping of the CMAM elements from the B interface (CAP) (see [11]) to 3

the C (CMAC) and E (CMAE) interfaces. It also includes the mapping to 4

parameters/subparameters/fields of SMS Broadcast Message. Note that B interface is 5

outside the scope of this document, and mapping of the B interface to C interface elements 6

is shown in Table 4-1 for informational purpose. 7

The definitions of the CAP Elements and the CMAC Elements are contained in the joint 8

ATIS/TIA standard. CMAE Elements are defined in technology specific standards (i.e., 9

cdma). 10

11

Table 4-1. Mapping Reference Point B Elements to Reference Point C and E Elements 12

CAP CMAC Element CMAE Element IS-637 Parameter of SMS Broadcast

Message

N/A CMAC_protocol_version N/A N/A

N/A N/A CMAE_protocol_version See 4.3

N/A CMAC_sending_ gateway_id N/A N/A

Identifier CMAC_message_number CMAE_identifier MESSAGE_ID field of the "Message Identifier"

subparameter

References CMAC_referenced_message_number

N/A N/A

N/A CMAC_special_handling CMAE_alert_handling CATEGORY field of the "Service

Category" parameter

Sender CMAC_sender N/A N/A

Sent CMAC_sent_date_time N/A N/A

Status CMAC_status N/A N/A

msgType CMAC_message_type CMAE_alert_type4 N/A

Source N/A N/A N/A

4 CMAE_alert_type is not included in E Interface Information record. The mobile station will treat each alert as a new alert. Note that CMAE_alert_type alone does not contain all the information, and requires another parameter corresponding to CMAC_referenced_message_number.

TIA-1149-0-1 3BSMS Broadcast Message For CMAS Application

4-2


Message

Scope N/A N/A N/A

Restriction N/A N/A N/A

code N/A N/A N/A

N/A CMAC_response_code N/A N/A

note CMAC_ note N/A N/A

incidents N/A N/A N/A

N/A CMAC_original_cap_alert_uri N/A N/A

category CMAC_category CMAE_category See 4.3

event N/A N/A N/A

eventCode CMAC_event_code N/A N/A

responseType CMAC_response_type CMAE_response_type See 4.3

severity CMAC_severity CMAE_severity See 4.3

urgency CMAC_urgency CMAE_urgency See 4.3

certainty CMAC_certainty CMAE_certainty See 4.3

audience N/A N/A N/A

effective N/A N/A N/A

onset N/A N/A N/A

expires CMAC_expires_date_time CMAE_expires See 4.3

senderName CMAC_sender_name N/A N/A

language CMAC_text_language CMAE_language LANGUAGE field of broadcast address (if included)

LANGUAGE field of Language

Indicator subparameter (if

included)

N/A CMAC_text_encoding CMAE_char_set See 4.3

N/A CMAC_text_alert_message_length CMAE_alert_text_length See 4.3

parameter (when value = “CMAMtext”)

CMAC_text_alert_message CMAE_alert_text See 4.3

headline N/A N/A N/A


4-3


Message

description N/A N/A N/A

instruction N/A N/A N/A

web CMAC_web_link N/A N/A

contact N/A N/A N/A

parameter (when value

not = “CMAMtext”)

N/A N/A N/A

areaDesc CMAC_area_description N/A N/A

polygon CMAC_polygon N/A N/A

circle CMAC_circle N/A N/A

geocode CMAC_cmas_geocode N/A N/A

geocode CMSC_gnis N/A N/A

altitude N/A N/A N/A

ceiling N/A N/A N/A

resourceDesc CMAC_resource_description N/A N/A

mimeType CMAC_mime_type N/A N/A

size CMAC_resource_size N/A N/A

uri CMAC_resource_uri N/A N/A

derefUri N/A N/A N/A

digest CMAC_digest N/A N/A

N/A N/A CMAE_associated_multimedia_indicator

N/A

N/A N/A CMAE_CMSP_defined_parameter

N/A

N/A N/A CMAE_reserved N/A

1

4.2 Mapping of CMAS Message Structure to SMS Broadcast Message 2

CMAS ‘Service Category’ values are defined in [10]. The CMAS message structure is defined 3

to carry E-Interface elements in the CHARi field of the ‘User Data” sub-parameter (see 4

Figure 4-1 and Figure 4-2). Refer to [7] for details of SMS Broadcast message. 5


4-4

CMAS Message

CHARi fields of “User Data” subparameter 1

Figure 4-1. CMAS Message 2

CMAE_protocol_version

E_RECORD_TYPE

E_RECORD_LEN

Type-specific fields

.

E_RECORD_TYPE

E_RECORD_LEN

Type-specific fields

.

3

Figure 4-2. CMAS Message Structure 4

5

If Commercial Mobile Alert Message (CMAM) is to be sent using SMS Broadcast message, 6

the base station shall conform to the following requirements: 7

• If broadcast address is included, the base station shall set the PRIORITY field to ‘11’ 8

(Emergency). If Priority Indicator subparameter is included, the base station shall set 9

the PRIORITY field to ‘11’ (Emergency). 10

• The base station shall set various SMS Broadcast message fields using values of E-11

interface elements as indicated in Table 4-2: 12

13


4-5

Table 4-2. SMS Broadcast Field mapping 1

SMS Broadcast Message Field E-interface element

MESSAGE_ID field of the "Message Identifier" subparameter

CMAE_identifier

CATEGORY field of the "Service Category" parameter CMAE_alert_handling

SERVICE field of broadcast address (if broadcast address is included)

CMAE_alert_handling

LANGUAGE field of broadcast address (if broadcast address is included)

CMAE_language

CHARi fields of User Data subparameter CMAS Message as defined in 4.3

LANGUAGE field of Language Indicator subparameter (if included)

CMAE_language

2

• The base station shall include E-RECORD with E_RECORD_TYPE set to 0x00 in CMAS 3

Message. The base station may optionally include E-RECORDs with E_RECORD_TYPE 4

set to values other than 0x00. 5

• The E-interface CMAE_language element shall be included when the CMAS Message is 6

transmitted. The base station can include CMAE_language in SMS Broadcast Message 7

as LANGUAGE field of broadcast address, as LANGUAGE field of Language Indicator 8

subparameter, or in CMAS Message as CMAE_language field of E-RECORD with 9

E_RECORD_TYPE set to 0x02. 10

• The base station shall set MSG_ENCODING field of User Data subparameter to ‘00000’ 11

(Octet, unspecified). 12

4.3 CMAS Message 13

14

Field Length (bits)

CMAE_protocol_version 8

The CMAS message shall include one or more occurrences of the following three-field record:

E_RECORD_TYPE 8

E_RECORD_LEN 8

Type-specific fields 8 × E_RECORD_LEN

CMAE_protocol_version CMAE Protocol Version. 15

The base station shall set this field to 0x00. 16

E_RECORD_TYPE E Interface Information record type. 17

The base station shall set this field as specified in Table 4-3. 18


4-6

Table 4-3. E_RECORD_TYPE Encoding 1

E_RECORD_TYPE Meaning

0x00 Type 0 Elements (Alert Text)

0x01 Type 1 Elements

0x02 Type 2 Elements

All other values Reserved

E_RECORD_LEN Information record length. 2

The base station shall set this field to the number of octets in 3

the type-specific fields included in this record. 4

Type-specific fields Type-specific fields. 5

The base station shall include type-specific fields as specified 6

below. 7

8

If E_RECORD_TYPE is 0x00, the type-specific fields are set as follows: 9

10

Element Function Length (bits)

CMAE_char_set Identifies the character set for the alert text in the CMAE_Alert_Text element (see Table 9.1-1 of [10])

5

CMAE_alert_text Contains the alert text in the language and character set encoding specified in the CMAE_language and CMAE_char_set elements

Variable

RESERVED Reserved bits for octet alignment 0 to 7

CMAE_char_set E Interface character set element. 11

The base station shall set this field to the appropriate 12

‘MSG_ENCODING Field’ specified under ‘Data Field Encoding 13

Assignments’ in [10]. 14

CMAE_alert_text E Interface alert text element. 15

The base station shall set this field to alert text in the 16

language and character set encoding specified in the 17

CMAE_language and CMAE_char_set elements. 18

RESERVED Reserved Bits. 19

The base station shall add reserved bits to make the length of 20


4-7

this record an integer number of octets. The base station shall 1

set these bits to zero. 2

3


5


CMAE_category Identifies the category of the CMAS alert

8

CMAE_response_type Identifies the response indicated for the CMAS alert

8

CMAE_severity Identifies the severity of the CMAS alert 4

CMAE_urgency Identifies the urgency of the CMAS alert 4

CMAE_certainty Identifies the certainty of the CMAS alert

4

RESERVED Reserved bits 0-7

CMAE_category E Interface category element. 6



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Table 4-4. CMAE_category Encoding 1

CMAE_category Meaning

0x00 Geo (Geophysical including landslide)

0x01 Met (Meteorological including flood)

0x02 Safety (General emergency and public safety)

0x03 Security (Law enforcement, military, homeland and local/private security)

0x04 Rescue (Rescue and recovery)

0x05 Fire (Fire suppression and rescue)

0x06 Health (Medical and public health)

0x07 Env (Pollution and other environmental)

0x08 Transport (Public and private transportation)

0x09 Infra (Utility, telecommunication, other non-transport infrastructure)

0x0a CBRNE (Chemical, Biological, Radiological, Nuclear or High-Yield Explosive threat or attack)

0x0b Other (Other events)


CMAE_response_type E Interface response type element. 2


Table 4-5. CMAE_response_type Encoding 4

CMAE_response_type Meaning

0x00 Shelter (Take shelter in place)

0x01 Evacuate (Relocate)

0x02 Prepare (Make preparations)

0x03 Execute (Execute a pre-planned activity)

0x04 Monitor (Attend to information sources)

0x05 Avoid (Avoid hazard)

0x065 Assess (Evaluate the information in this message. This value SHOULD NOT be used in public warning applications.)

0x076 None (No action recommended)


CMAE_severity E Interface severity element. 5



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Table 4-6. CMAE_severity Encoding 1

CMAE_severity Meaning

0x0 Extreme (Extraordinary threat to life or property)

0x1 Severe (Significant threat to life or property)


CMAE_urgency E Interface urgency element. 2


Table 4-7. CMAE_urgency Encoding 4

CMAE_urgency Meaning

0x0 Immediate (Responsive action should be taken immediately)

0x1 Expected (Responsive action should be taken soon - within the next hour)


CMAE_certainty E Interface certainty element. 5


Table 4-8. CMAE_certainty Encoding 7

CMAE_certainty Meaning

0x0 Observed (Determined to have occurred or to be ongoing)

0x1 Likely (Likely. Probability > ~50%)


RESERVED Reserved Bits. 8

The base station shall add reserved bits to make the length of 9

this record an integer number of octets. The base station shall 10

set these bits to zero. 11

12


4-10


2


CMAE_identifier A number uniquely identifying this message

16

CMAE_alert_handling Specifies if this alert message requires special handling.

8

CMAE_expires Identifies the expiration date and time of the CMAS alert

48

CMAE_language Identifies the language of the alert message in the CMAE_Alert_Text element

8

CMAE_identifier E Interface identifier element. 3

The base station shall set this field to a number uniquely 4

identifying this message. 5

CMAE_alert_handling E Interface alert handling element. 6

The base station shall set this field to the 8 LSBs of the 7

appropriate ‘Service Category’ specified in ”CMAS Broadcast 8

Service Category Assignments” in [10]. 9

CMAE_expires E Interface expires element. 10

The base station shall set the time in this field to UTC time. 11


Table 4-9. CMAE_expires Encoding 13

Subfield Length (bits) Subfield Description

YEAR 8 Year in range 00-99 (UTC)

MONTH 8 Month in range 1-12 (UTC)

DAY 8 Day in range 1 to 31 (UTC)

HOURS 8 Hour in range 0-23 (UTC)

MINUTES 8 Minutes in range 0-59 (UTC)

SECONDS 8 Seconds in range 0-59 (UTC)

CMAE_language E Interface language element. 14

The base station shall set this field to appropriate ‘Language’ 15

specified under ‘Language Indicator Value Assignments’ in 16

[10]. 17

18

19

4BRequirements for Mobile Station CMAS Operation TIA-1149-0-1

5-1

5 REQUIREMENTS FOR MOBILE STATION CMAS OPERATION 1

This section defines requirements that are specific to CDMA mobile station equipment and 2

operation. 3

5.1 Channel 4

The mobile station monitors the Paging Channel or Broadcast Control Channel to receive a 5

Commercial Mobile Alert Message (CMAM) as specified in [5]. 6

5.2 Security 7

The CMSAAC recommends that the security of the Reference points D and E be based upon 8

CMSP policies and upon the capabilities of the CMSP selected delivery technologies. 9

Security is addressed in [5]. 10

5.3 Duplicate Detection 11

If the mobile station determines that the received CMAM is a duplicate of previously 12

received CMAM based upon CMAE_identifier , the mobile station shall discard the CMAM. 13

5.4 Mobile Station Message Parsing Requirements 14

This section defines the parsing requirement for the mobile station upon receiving the 15

CMAM. This message would only apply to text-based alerts using Broadcast SMS. 16

• If the mobile station receives a CMAE_protocol_version that it does not support, the 17

mobile station shall ignore the message. 18

• Otherwise, 19

– If the mobile station receives the CMAM with an unknown record, the mobile station 20

shall ignore that record and process the remaining records. 21

– If the mobile station recognizes extra bits at the end of a record, the mobile station 22

shall ignore these extra bits. 23

24

TIA-1149-0-1 4BRequirements for Mobile Station CMAS Operation

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No text. 1

5BRequirements for Base Station CMAS Operation TIA-1149-0-1

6-1

6 REQUIREMENTS FOR BASE STATION CMAS OPERATION 1

This section defines requirements that are specific to CMAS base station equipment and 2

operation. 3

If new fields are appended to the existing E-RECORD_TYPE, the base station shall not 4

increase the protocol version. 5

The base station may use the message identifier field to distinguish different messages from 6

the same broadcast service transmitted within the time period established for broadcast 7

duplicate detection in the mobile station (see [4]). 8

If the same message is re-transmitted, the base station should use the same value for the 9

CMAE_Identifier when the message is retransmitted. 10

11

TIA-1149-0-1 5BRequirements for Base Station CMAS Operation

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No text. 1

Documents

520-09120806 Editor TIA-1149!0!1 CMASoverCDMA Baseline