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AIR INTERFACE FOR FIXED BROADBAND WIRELESS ACCESS SYSTEMS

IEEE Std 802.16-2001

6.1.1.1 MAC_CREATE_CONNECTION.request

6.1.1.1.1 Function

This primitive is issued by a CS entity in a BS or SS unit to request the dynamic addition of a connection.

6.1.1.1.2 Semantics of the service primitive

The parameters of the primitive are as follows:

MAC_CREATE_CONNECTION.request

(

scheduling service type, convergence sublayer, service flow parameters,

payload header suppression indicator, length indicator,

encryption indicator, Packing on/off indicator,

Fixed-length or variable-length SDU indicator,

SDU length (only needed for fixed-length SDU connections), CRC request,

ARQ parameters, sequence number

)

The scheduling service type (see 6.2.5) is one of the following: Unsolicited grant service (UGS), real-time polling service (rtPS), non-real-time polling service (nrtPS), and best effort (BE) service.

The CS parameter indicates which CS handles data received on this connection. If the value is zero, then no CS is used; other values for specific CSs are given in 11.4.9.

The service flow parameters include details on such issues as peak and average rate, or reference to a service flow. These parameters are the same as those in the dynamic service change request MAC management message.

The payload header suppression indicator specifies whether the SDUs on the service flow are to have their headers suppressed.

The packing on/off indicator specifies whether packing may be applied to the MAC SDUs on this connection. The fixed-length or variable-length SDU indicator specifies whether the SDUs on the service flow are fixed-length or variable-length.

The SDU length specifies the length of the SDU for a fixed-length SDU service flow.

The encryption indicator specifies that the data sent over this connection is to be encrypted, if ON. If OFF, then no encryption is used. The packing on/off indicator’s “on” value means that packing is allowed for the connection.

Cyclic redundancy check (CRC) request, if ON, requests that the MAC SDUs delivered over this connection are transported in MAC PDUs with a CRC added to them.

Copyright © 2002 IEEE. All rights reserved.

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