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IEEE Std 802.16-2001

LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

All other parameters are coded as TLV tuples.

If Privacy is enabled, the DSD-RSP shall include:

HMAC Tuple (see 11.4.10)

The HMAC Tuple Attribute contains a keyed Message digest (to authenticate the sender). The HMAC Tuple Attribute shall be the final Attribute in the Dynamic Service Message’s Attribute list.

6.2.2.3.18 Multicast Polling Assignment Request (MCA-REQ) message

The MCA-REQ message is sent to an SS to assign it to or remove it from a multicast polling group. The format of the message is shown in Table 44.

Table 44—MCA-REQ message format

Syntax

Size

Notes

 

 

 

MCA-REQ_Message_Format() {

 

 

 

 

 

Management Message Type = 21

8 bits

 

 

 

 

Transaction ID

16 bits

 

 

 

 

TLV Encoded Information

Variable

TLV specific

 

 

 

}

 

 

 

 

 

Parameters shall be as follows:

CID (in the Generic MAC Header)

SS’s Primary Management CID.

Transaction ID

Unique identifier for this transaction assigned by the sender.

All other parameters are coded as TLV tuples.

Multicast CID (See 11.1.5)

Assignment (See 11.1.5)

70

Copyright © 2002 IEEE. All rights reserved.

AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS

IEEE Std 802.16-2001

6.2.2.3.19 Multicast Polling Assignment Response (MCA-RSP) message

The MCA-RSP is sent by the SS in response to a MCA-REQ. The message format shall be as shown in Table 45.

Table 45—MCA-RSP message format

Syntax

Size

Notes

 

 

 

MCA-RSP_Message_Format() {

 

 

 

 

 

Management Message Type = 22

8 bits

 

 

 

 

Transaction ID

16 bits

 

 

 

 

Confirmation Code

8 bits

 

 

 

 

}

 

 

 

 

 

Parameters shall be as follows:

CID (in the Generic MAC Header)

SS’s Primary Management CID.

Transaction ID

Unique identifier for this transaction assigned by the sender.

Confirmation Code

6.2.2.3.20 Downlink Burst Profile Change Request (DBPC-REQ) message

The DBPC-REQ Message is sent by the SS to the BS on the SS’s Basic CID to request a change of the downlink burst profile used by the BS to transport data to the SS. Note that a change of downlink burst profile may also be requested by means of a RNG-REQ message as defined in 6.2.2.3.5.

The DBPC-REQ Message shall be sent at the current operational Data Grant Burst Type for the SS. If the SS has been inactive on its uplink for some period of time and detects fading on the downlink, the SS uses this message to request transition to a more robust Data Grant Burst Type. The message format shall be as shown in Table 46.

Table 46—DBPC-REQ message format

Syntax

Size

Notes

 

 

 

DBPC-REQ_Message_Format() {

 

 

 

 

 

Management Message Type = 23

8 bits

 

 

 

 

reserved

4 bits

bits reserved for future use

 

 

 

DIUC

4 bits

 

 

 

 

}

 

 

 

 

 

Copyright © 2002 IEEE. All rights reserved.

71

IEEE Std 802.16-2001

LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

Parameters shall be as follows:

DIUC

DIUCs as defined in Table 91.

6.2.2.3.21 Downlink Burst Profile Change Response (DBPC-RSP) message

The DBPC-RSP Message shall be transmitted by the BS on the SS’s Basic CID in response to a DBPC-REQ message from the SS. If the DIUC parameter is the same as requested in the DBPC-REQ message, then the request was accepted. Otherwise, if the request is rejected, the DIUC parameter shall be the previous DIUC at which the SS was receiving downlink data. The message format shall be as shown in Table 47.

Table 47—DBPC-RSP message format

Syntax

Size

Notes

 

 

 

DBPC-RSP_Message_Format() {

 

 

 

 

 

Management Message Type = 24

8 bits

 

 

 

 

reserved

4 bits

bits reserved for future use

 

 

 

DIUC

4 bits

 

 

 

 

}

 

 

 

 

 

Parameters shall be as follows:

DIUC

DIUCs as defined in Table 91.

6.2.2.3.22 Reset Command (RES-CMD) message

The RES-CMD Message shall be transmitted by the BS on an SS’s Basic CID to force the SS to reset itself, reinitialize its MAC, and repeat initial system access. This message may be used if an SS is unresponsive to the BS or if the BS detects continued abnormalities in the uplink transmission from the SS.

The MAC Management Message type for this message is given in Table 3. The RES-CMD Message format is shown in Table 48.

Table 48—RES-CMD message format

Syntax

Size

Notes

 

 

 

RES-CMD_Message_Format() {

 

 

 

 

 

Management Message Type = 25

8 bits

 

 

 

 

TLV encoded information

variable

 

 

 

 

}

 

 

 

 

 

72

Copyright © 2002 IEEE. All rights reserved.

AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS

IEEE Std 802.16-2001

The RES-CMD shall include the following parameters encoded as TLV tuples:

HMAC Tuple (see 11.4.12)

The HMAC Tuple shall be the last attribute in the message.

6.2.2.3.23 SS Basic Capability Request (SBC-REQ) message

The SS SBC-REQ shall be transmitted by the SS during initialization. An SS shall generate SBC-REQ messages in the form shown in Table 49.

Table 49—SS SBC-REQ message format

Syntax

Size

Notes

 

 

 

SBC-REQ_Message_Format() {

 

 

 

 

 

Management Message Type = 26

8 bits

 

 

 

 

TLV Encoded Information

Variable

TLV specific

 

 

 

}

 

 

 

 

 

An SS shall generate SS SBC-REQs including the following parameter:

Basic CID (in the MAC Header)

The CID in the MAC Header is the Basic CID for this SS, as assigned in the RNG-RSP message.

All other parameters are coded as TLV tuples.

Basic Capability Requests contain those SS Capabilities Encodings (11.4.1) that are necessary for effective communication with the SS during the remainder of the initialization protocols. Only the following parameters shall be included in the Basic Capabilities Request:

Physical Parameters Supported (see 11.4.1.2)

Bandwidth Allocation Support (see 11.4.1.6)

6.2.2.3.24 SS Basic Capability Response (SBC-RSP) message

The SS SBC-RSP shall be transmitted by the BS in response to a received SBC-REQ.

Copyright © 2002 IEEE. All rights reserved.

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