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AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS

IEEE Std 802.16-2001

b)Calculate the SS MIC configuration setting as defined in 9.2.3.1 and add to the file following the last parameter using code and length values defined for this field.

type, length, value for parameter 1

type, length, value for parameter 2

type, length, value for parameterSS n

type, length, value for SS MIC

Figure 132—Add SS MIC

c)Add the end of data marker.

type, length, value for parameter 1

type, length, value for parameter 2

type, length, value for parameterSS n

type, length, value for SS MIC

end of data marker

Figure 133—Add end of data marker

9.2.3.1 SS MIC calculation

The SS message integrity check configuration setting shall be calculated by performing a SHA-1 digest over the bytes of the configuration setting fields. It is calculated over the bytes of these settings as they appear in the TFTPed image, without regard to TLV ordering or contents. There are two exceptions to this disregard of the contents of the TFTPed image:

The bytes of the SS MIC TLV itself are omitted from the calculation. This includes the type, length, and value fields.

On receipt of a configuration file, the SS shall recompute the digest and compare it to the SS MIC configuration setting in the file. If the digests do not match, then the configuration file shall be discarded.

10.Parameters and constants

10.1 Global values

The BS and SS shall meet the timing requirements contained in Table 118.

Copyright © 2002 IEEE. All rights reserved.

267

IEEE Std 802.16-2001 LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

Table 118—Parameters and constants

System

Name

Time reference

Minimum

Default

Maximum

value

value

value

 

 

 

 

 

 

 

 

 

BS

DL-MAP Interval

Nominal time between

 

 

200 ms

 

 

transmission of DL-MAP

 

 

 

 

 

messages

 

 

 

 

 

 

 

 

 

BS

DCD Interval

Time between transmission of

 

 

10 s

 

 

DCD messages

 

 

 

 

 

 

 

 

 

BS

UCD Interval

Time between transmission of

 

 

10 s

 

 

UCD messages

 

 

 

 

 

 

 

 

 

BS

UCD Transition

The time the BS shall wait after

2 ms

 

 

 

 

repeating a UCD message with

 

 

 

 

 

an incremented Configuration

 

 

 

 

 

Change Count before issuing a

 

 

 

 

 

UL-MAP message referring to

 

 

 

 

 

Uplink_Burst_Profiles defined

 

 

 

 

 

in that UCD message

 

 

 

 

 

 

 

 

 

BS

DCD Transition

The time the BS shall wait after

2 ms

 

 

 

 

repeating a DCD message with

 

 

 

 

 

an incremented Configuration

 

 

 

 

 

Change Count before issuing a

 

 

 

 

 

DL-MAP message referring to

 

 

 

 

 

Downlink_Burst_Profiles

 

 

 

 

 

defined in that DCD message

 

 

 

 

 

 

 

 

 

BS

Max MAP Pending

The number of mini-slots that a

 

 

4096 mini-

 

 

BS is allowed to map into the

 

 

slot times

 

 

future

 

 

beyond the

 

 

 

 

 

Allocation

 

 

 

 

 

Start Time

 

 

 

 

 

 

BS

Initial

Time between Initial

 

 

2 s

 

Ranging Interval

Maintenance regions assigned

 

 

 

 

 

by the BS

 

 

 

 

 

 

 

 

 

BS

CLK-CMP Interval

Time between transmission of

50 ms

50 ms

50 ms

 

 

CLK-CMP messages

 

 

 

 

 

 

 

 

 

SS

Lost DL-MAP Inter-

Time since last received

 

 

600 ms

 

val

DL-MAP message before

 

 

 

 

 

downlink synchronization is

 

 

 

 

 

considered lost

 

 

 

 

 

 

 

 

 

SS

Lost UL-MAP Inter-

Time since last received

 

 

600 ms

 

val

UL-MAP message before

 

 

 

 

 

uplink synchronization is

 

 

 

 

 

considered lost

 

 

 

 

 

 

 

 

 

SS

Contention Ranging

Number of retries on contention

16

 

 

 

Retries

Ranging Requests

 

 

 

 

 

 

 

 

 

SS, BS

Invited Ranging

Number of retries on inviting

16

 

 

 

Retries

Ranging Requests

 

 

 

 

 

 

 

 

 

SS

Request Retries

Number of retries on bandwidth

16

 

 

 

 

allocation requests

 

 

 

 

 

 

 

 

 

SS

Registration Request

Number of retries on

3

 

 

 

Retries

registration requests

 

 

 

 

 

 

 

 

 

268

Copyright © 2002 IEEE. All rights reserved.

AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS IEEE Std 802.16-2001

Table 118—Parameters and constants (continued)

System

Name

Time reference

Minimum

Default

Maximum

value

value

value

 

 

 

 

 

 

 

 

 

BS

Registration

Number of retries on

3

 

 

 

Response Retries

Registration Response

 

 

 

 

 

 

 

 

 

SS

Data Retries

Number of retries on immediate

16

 

 

 

 

data transmission

 

 

 

 

 

 

 

 

 

BS

SS UL-MAP

Time provided between arrival

200 µs

 

 

 

processing time

of the last bit of a UL-MAP at

 

 

 

 

 

an SS and effectiveness of that

 

 

 

 

 

map

 

 

 

 

 

 

 

 

 

BS

SS Ranging Response

Time allowed for an SS

1 ms

 

 

 

processing time

following receipt of a ranging

 

 

 

 

 

response before it is expected to

 

 

 

 

 

reply to an invited ranging

 

 

 

 

 

request

 

 

 

 

 

 

 

 

 

SS, BS

Minislot size

Size of minislot for uplink

1 PS

 

 

 

 

transmission. Shall be a power

 

 

 

 

 

of 2 (in units of PS)

 

 

 

 

 

 

 

 

 

SS, BS

DSx Request Retries

Number of Timeout Retries on

 

3

 

 

 

DSA/DSC/DSD Requests

 

 

 

 

 

 

 

 

 

SS, BS

DSx Response Retries

Number of Timeout Retries on

 

3

 

 

 

DSA/DSC/DSD Responses

 

 

 

 

 

 

 

 

 

SS

TFTP Backoff Start

Initial value for TFTP backoff

1 s

 

 

 

 

 

 

 

 

SS

TFTP Backoff End

Last value for TFTP backoff

16 s

 

 

 

 

 

 

 

 

SS

TFTP Request Retries

Number of retries on TFTP

16

 

 

 

 

request

 

 

 

 

 

 

 

 

 

SS

TFTP Download

Number of retries on entire

3

 

 

 

Retries

TFTP downloads

 

 

 

 

 

 

 

 

 

SS

TFTP Wait

The duration between two

2 min

 

 

 

 

consecutive TFTP retries

 

 

 

 

 

 

 

 

 

SS

Time of Day Retries

Number of Retries per Time of

3

 

 

 

 

Day Retry Period

 

 

 

 

 

 

 

 

 

SS

Time of Day Retry

Time period for Time of Day

5 min

 

 

 

Period

retries

 

 

 

 

 

 

 

 

 

SS

T1

Wait for DCD timeout

 

 

5 * DCD

 

 

 

 

 

interval

 

 

 

 

 

maximum

 

 

 

 

 

value

 

 

 

 

 

 

SS

T2

Wait for broadcast ranging

 

 

5 * ranging

 

 

timeout

 

 

interval

 

 

 

 

 

 

SS

T3

Ranging Response reception

 

200 ms

200 ms

 

 

timeout following the

 

 

 

 

 

transmission of a Ranging

 

 

 

 

 

Request

 

 

 

 

 

 

 

 

 

Copyright © 2002 IEEE. All rights reserved.

269

IEEE Std 802.16-2001 LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

Table 118—Parameters and constants (continued)

System

Name

Time reference

Minimum

Default

Maximum

value

value

value

 

 

 

 

 

 

 

 

 

SS

T4

Wait for unicast ranging

30 s

 

35 s

 

 

opportunity. If the pending-

 

 

 

 

 

until-complete field was used

 

 

 

 

 

earlier by this SS, then the value

 

 

 

 

 

of that field shall be added to

 

 

 

 

 

this interval.

 

 

 

 

 

 

 

 

 

BS

T5

Wait for Uplink Channel

 

 

2 s

 

 

Change response

 

 

 

 

 

 

 

 

 

SS

T6

Wait for registration response

 

 

3 s

 

 

 

 

 

 

SS, BS

T7

Wait for DSA/DSC/DSD

 

 

1 s

 

 

Response timeout

 

 

 

 

 

 

 

 

 

SS, BS

T8

Wait for DSA/DSC

 

 

300 ms

 

 

Acknowledge timeout

 

 

 

 

 

 

 

 

 

BS

T9

Registration Timeout, the time

300 ms

300 ms

 

 

 

allowed between the BS

 

 

 

 

 

sending a RNG-RSP (success)

 

 

 

 

 

to an SS, and receiving a

 

 

 

 

 

SBC-REQ from that same SS.

 

 

 

 

 

 

 

 

 

SS, BS

T10

Wait for Transaction End

 

 

3 s

 

 

timeout

 

 

 

 

 

 

 

 

 

SS

T12

Wait for UCD descriptor

 

 

5 * UCD

 

 

 

 

 

Interval

 

 

 

 

 

maximum

 

 

 

 

 

value

 

 

 

 

 

 

BS

T13

The time allowed for an SS,

15 min

15 min

 

 

 

following receipt of a REG-RSP

 

 

 

 

 

message to send a TFTP-CPLT

 

 

 

 

 

message to the BS

 

 

 

 

 

 

 

 

 

SS

T14

Wait for DSX-RVD Timeout

 

 

200 ms

 

 

 

 

 

 

BS

T15

Wait for MCA-RSP

20 ms

20 ms

 

 

 

 

 

 

 

SS

T16

Wait for bandwidth request

10 ms

 

service QoS

 

 

grant

 

 

dependent

 

 

 

 

 

 

270

Copyright © 2002 IEEE. All rights reserved.

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