Добавил:
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Литература / 802.16-2001+.pdf
Скачиваний:
24
Добавлен:
16.04.2013
Размер:
2.61 Mб
Скачать

IEEE Std 802.16-2001

LOCAL AND METROPOLITAN AREA NETWORKS—PART 16:

6.2.9.7 Negotiate basic capabilities

Immediately after completion of ranging, the SS informs the BS of its basic capabilities by transmitting an SBC-REQ message with its capabilities set to “on.” The BS responds with an SBC-RSP message with the intersection of the SS’s and the BS’s capabilities set to “on.”

6.2.9.8 SS authorization and key exchange

The BS and SS shall perform authorization and key exchange as described in 7.2.

6.2.9.9 Registration

Registration is the process by which the SS receives its Secondary Management CID and thus becomes manageable. To register with a BS, the SS shall send a REG-REQ message to the BS. The BS shall respond with a REG-RSP message. The REG-RSP message shall include the Secondary Management CID.

Figure 52 shows the procedure that shall be followed by the SS.

Register with

BS

REG-REQ

Wait for

REG-RSP

Figure 52—Registration—SS

Once the SS has sent a REG-REQ to the BS, it shall wait for a REG-RSP to authorize it to forward traffic to the network. Figure 53 shows the waiting procedure that shall be followed by the SS.

Wait for

REG-RSP

 

 

 

 

Timeout T6

 

 

 

REG-RSP

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Retries

 

 

Response

 

 

Implementation

 

 

 

 

exhausted

 

 

OK?

 

Dependent

 

 

 

?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Send

Error: Reinitialize

 

Establish Secondary

 

 

REG-REQ

 

MAC

 

 

Management

 

 

 

 

 

 

 

 

 

 

 

Connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wait for

 

 

 

 

 

 

Establish IP

 

 

REG-RSP

 

 

 

 

 

 

connectivity

 

 

Figure 53—Wait for registration response—SS

112

Copyright © 2002 IEEE. All rights reserved.

AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS

IEEE Std 802.16-2001

The BS shall perform the operations shown in Figure 54.

Waiting for

REG-REQ

REG-REQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop T9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Calculate HMAC

 

 

 

over REG-REQ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HMAC

 

No

Send REG-RSP with

 

 

Response =1 (Message

Valid?

 

 

Authentication Failure)

 

 

 

 

 

 

 

 

 

 

 

Yes

Set SS capabilities supported in REG-RSP

Wait for

REG-REQ

Send REG-RSP with Response =0 (OK)

Start T13

Wait for

TFTP-CPLT

Figure 54—Registration—BS

Upon sending a REG-RSP, the BS shall wait for a TFTP-CPLT. If timer T9 (defined in Table 118) expires, the BS shall both de-assign the management CIDs from that SS and make some provision for aging out those CIDs.

6.2.9.9.1 IP version negotiation

The SS may include the IP Version (11.4.1.7) parameter in the REG-REQ to indicate which versions of IP it supports on the Secondary Management Connection. When present in the REG-REQ, the BS shall include the IP Version parameter (11.4.1.7) in the REG-RSP to command the SS to use the indicated version of IP on the Secondary Management Connection. The BS shall command the use of exactly one of the IP versions supported by the SS.

The omission of the IP Version parameter in the REG-REQ shall be interpreted as IPv4 support only. Consequently, omission of the IP Version parameter in the REG-RSP shall be interpreted as a command to use IPv4 on the Secondary Management Connection.

Copyright © 2002 IEEE. All rights reserved.

113

Соседние файлы в папке Литература