8.4 Basic, Primary and Secondary Management Connections


8.4 Basic, Primary and Secondary Management Connections

As already mentioned, connections are identified by a 16-bit CID. At SS initialisation, taking place at SS network entry, two pairs of management connections (uplink and downlink connections) are established between the SS and the BS, and a third pair of management connections may be optionally established. These three pairs of connections reflect the fact that there are three different levels of QoS for management traffic between an SS and the BS:

  • The basic connection is used by the BS MAC and SS MAC to exchange short, time-urgent MAC management messages. This connection has a Basic CID (see Table 7.1).

    Table 8.5: List of all 802. 16-2004 MAC management messages. See Annex A for brief descriptions of each message. (From IEEE Std 802. 16-2004 [1]. Copyright IEEE 2004, IEEE. All rights reserved.)
    Open table as spreadsheet

    Type

    Message name

    Description

    Connection

    0

    UCD

    Uplink Channel Descriptor

    Broadcast

    1

    DCD

    Downlink Channel Descripton

    Broadcast

    2

    DL-MAP

    Downlink Access Definition

    Broadcast

    3

    UL-MAP

    Uplink Access Definition

    Broadcast

    4

    RNG-REQ

    Ranging Request

    Initial ranging or basic

    5

    RNG-RSP

    Ranging Response

    Initial ranging or basic

    6

    REG-REQ

    Registration Request

    Primary management

    7

    REG-RSP

    Registration Response

    Primary management

    8

    reserved

       

    9

    PKM-REQ

    Privacy Key Management Request

    Primary management

    10

    PKM-RSP

    Privacy Key Management Response

    Primary management

    11

    DSA-REQ

    Dynamic Service Addition Request

    Primary management

    12

    DSA-RSP

    Dynamic Service Addition Response

    Primary management

    13

    DSA-ACK

    Dynamic Service Addition Acknowledge

    Primary management

    14

    DSC-REQ

    Dynamic Service Change Request

    Primary management

    15

    DSC-RSP

    Dynamic Service Change Response

    Primary management

    16

    DSC-ACK

    Dynamic Service Addition Acknowledge

    Primary management

    17

    DSD-REQ

    Dynamic Service Deletion Request

    Primary management

    18

    DSD-RSP

    Dynamic Service Deletion Response

    Primary management

    19

    reserved

       

    20

    reserved

      

    21

    MCA-REQ

    Multicast Assignment Request

    Primary management

    22

    MCA-RSP

    Multicast Assignment Response

    Primary management

    23

    DBPC-REQ

    Downlink Burst Profile Change Request

    Basic

    24

    DBPC-RSP

    Downlink Burst Profile Change Response

    Basic

    25

    RES-CMD

    Reset Command

    Busic

    26

    SBC-REQ

    SS Basic Cupability Request

    Basic

    27

    SBC-RSP

    SS Basic Capability Response

    Basic

    28

    CLK-CMP

    SS network Clock Comparison

    Broadcast

    29

    DREG-CMD

    De/Re-register Command

    Basic

    30

    DSX-RVD

    DSx Received Message

    Primary management

    31

    TFTP-CPLT

    Configuration File TFTP Complete Messate

    Primary management

    32

    TFTP-RSP

    Configuration File TFTP Complete Response

    Primary management

    33

    ARQ-Feedback

    Standalone ARQ Feedback

    Basic

    34

    ARQ-Discard

    ARQ Discard message

    Basic

    35

    ARQ-Reset

    ARQ Reset message

    Basic

    36

    REP-REQ

    Channel measurement Report Request

    Basic

    37

    REP-RSP

    Channel measurement Report Response

    Basic

    38

    FPC

    Fast Power Control

    Broadcast

    39

    MSH-NCFG

    Mesh Network Configuration

    Broadcast

    40

    MSH-NENT

    Mesh Network Entry

    Basic

    41

    MSH-DSCH

    Mesh Distributed Schedule

    Broadcast

    42

    MSH-CSCH

    Mesh Centralised Schedule

    Broadcast

    43

    MSH-CSCF

    Mesh Centralised Schedule Configuration

    Broadcast

    44

    AAS-FBCK-REQ

    AAS Feedback Request

    Basic

    45

    AAS-FBCK-RSP

    AAS Feedback Response

    Basic

    46

    AAS-Beam_Select

    AAS Beam Select message

    Basic

    47

    AAS-BEAM_REQ

    AAS Beam Request message

    Basic

    48

    AAS-BEAM_RSP

    AAS Beam Response message

    Basic

    49

    DREG-REQ

    SS De-registration Request message

    Basic

    50–255

    reserved

      
  • The primary management connection is used by the BS MAC and SS MAC to exchange longer, more delay-tolerant MAC management messages. This connection has a Primary Management CID (see Table 7.1). Table 8.5 and 8.6 list all of the 802.16-2004 and 802.16e MAC management messages. See Annex A for brief descriptions of each message. Tables 8.5 and 8.6, specify which MAC management messages are transferred on each of these two connections.

    Table 8.6: MAC management messages added by the 802.16e amendment. (From IEEE Std 802.16e-2005 [2]. Copyright IEEE 2006, IEEE. All rights reserved.)
    Open table as spreadsheet

    Type

    Message name

    Description

    Connection

    50

    MOB_SLP-REQ

    SLeep REQuest

    Basic

    51

    MOB_SLP-RSP

    SLeep ReSPonse

    Basic

    52

    MOB_TRF-IND

    TRaffic INDiication

    Broadcast

    53

    MOB_NBR-ADV

    Neighbour ADVertisement

    Broadcast and primary management

    54

    MOB_SCN-REQ

    SCanning interval allocation REQuest

    Basic

    55

    MOB_SCN-RSP

    SCanning interval allocation ReSPonse

    Basic

    56

    MOB_BSHO-REQBS

    HO REQuest

    Basic

    57

    MOB_MSHO-REQ

    MS HO REQuest

    Basic

    58

    MOB_BSHO-RSP

    BS HO Response

    Basic

    59

    MOB_HO-IND

    HO INDication

    Basic

    60

    MOB_SCN-REP

    Scanning result REPort

    Primary management

    61

    MOB_PAG-ADV

    BS broadcast PAGing

    Broadcast

    62

    MBS_MAP

    MBSMA

    MA

    63

    PMC_REQ

    Power control Mode Change REQuest

    Basic

    64

    PMC_RSP

    Power control Mode Change Response

    Basic

    65

    PRC-LT-CTRL

    Set-up/tear-down of Long-Term MIMO precoding

    Basic

    66

    MOB_ASC-REP

    Association result REPort

    Primary management

    67-255

    reserved

      
  • The secondary management connection is used by the BS and SS to transfer delay tolerant, standards-based messages. These standards are the Dynamic Host Configuraation Protocol (DHCP), Trivial File Transfer Protocol (TFTP), Simple Network Manageement Protocol (SNMP), etc. The secondary management messages are carried in IP datagrams, as mentioned later in Chapter 11 (see also Section 5.2.6 of the standard [I] for IP CS PDU formats). Hence, secondary management messages are not MAC mannagement messages. Use of the secondary management connection is required only for managed SSs.

An SS supports a Basic CID, a Primary Management CID and zero or more Transport CIDs. A managed SS also supports a Secondary Management CID. Then the minimum value of the number of uplink CIDs supported is three for managed SSs and two for unmanaged SSs.

The CIDs for these connections are assigned in the initial ranging process, where the three CID values are assigned. The same CID value is assigned to both members (uplink and downlink) of each connection pair. The initial ranging process is described in Chapter 11.




WiMAX. Technology for Broadband Wireless Access
WiMAX: Technology for Broadband Wireless Access
ISBN: 0470028084
EAN: 2147483647
Year: 2007
Pages: 124

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