802.16.1 Functional Requirements, Rev. 1 - LMSC, LAN/MAN ...

12345678910111213141516171819201999-12-17 IEEE 802.16s-99/00r1requirements in broad terms: what they are, but not how they work. The how part is left to theforthcoming 802.16.1 interoperability standard [20], which will describe in detail the interfacesand procedures of the MAC and PHY protocols.Since many BWA systems are conceivable, with many possible interconnections, inter-workingfunctions [17] and parameters, this document does not specify them all, but focuses on the bearerservices that an 802.16.1 system is required to transport. These bearer services have a directimpact on the requirements of the 802.16.1 MAC and PHY protocols. When the 802.16 workinggroup produces an interoperable air interface standard that meets these functional requirements,resulting 802.16.1 systems provide the services required to neatly interface into many conceivableBWA systems. See section 1.2.Other goals of this document are to formulate reference models and terminology for both networktopology and protocol stacks that help the 802.16 working group to discuss and develop theMAC and PHY protocols.The 802.16.1 air interface interoperability standard SHALL be part of a family of standards forlocal and metropolitan area networks. The 802.16.1 protocols relate to other 802 standards andto the OSI model as shown in Figure 1.21802.10 SECURITY802 OVERVIEW & ARCHITECTURE802.1 MANAGEMENT802.2 LOGICAL LINK CONTROL802.[3,4,5,6...]PHYSICAL802.1 BRIDGING802.[3,4,5,6...]MEDIUMACCESS ...802.16MEDIUMACCESSOTHERUPPER LAYERS802.16PHYSICALDATALINKLAYERPHYSICALLAYER22232425262728293031Figure 1: Relationship between 802.16.1 and other Protocol Standards (the numbers inthe figure refer to IEEE standard numbers)This family of standards deals with the Physical and Data Link layers as defined by theInternational Organization for Standardization (ISO) Open Systems Interconnection BasicReference Model (ISO 7498: 1984). The access standards define several types of medium accesstechnologies and associated physical media, each appropriate for particular applications or systemobjectives. Other types are under investigation.The standards that define the technologies noted in the above diagram are as follows:-2-