The following MAC management messages were defined in 802.16e. They are about mobility, power-save modes, power control, MBS and MIMO.
Power control mode messages |
|||
---|---|---|---|
Type (8 bits) |
Message name |
Description |
Type of connection |
63 |
PMC_REQ, Power control Mode Change Request |
Sent from the SS to the BS, PMC_REQ is used to request to change the power control mode or to answer PMC_RSP |
Basic |
64 |
PMC_RSP, Power control Mode Change Response |
The decision of the change of the power control mode (open loop or closed loop) is done at the BS. This decision is indicated by the PMC_RSP MAC message |
Basic |
MBS message |
|||
---|---|---|---|
Type (8 bits) |
Message name |
Description |
Type of connection |
62 |
MBS_MAP |
Sent by the BS, on an MBS portion to describe the MBS connections serviced by this MBS portion. If MBS_MAP is not sent, these connections are described in the DL-MAP |
- |
MIMO precoding setup message |
|||
---|---|---|---|
Type (8 bits) |
Message name |
Description |
Type of connection |
65 |
PRC-LT-CTRL, Setup/Tear-down of Long-Term MIMO Precoding |
The BS can set up long-term MIMO precoding with feedback from a particular SS by sending this message to this SS. The BS can also use this message to tear down the long-term precoding with feeback |
Basic |
Handover messages |
|||
---|---|---|---|
Type (8 bits) |
Message name |
Description |
Type of connection |
53 |
MOB_NBR-ADV, Neighbour Advertisement |
Broadcasted by a BS; provides channel information about neighbouring BSs normally provided by ach Bs's DCD/UCD message transmissions |
Broadcast, Primary management |
54 |
MOB_SCN-REQ, Scanning interval allocation Request |
Sent by the SS (MS) to request a scanning interval for the purpose of seeking available BSs and determining their suitability as targets for handover |
Basic |
55 |
MOB_SCN-RSP, Scanning interval allocation Response |
Sent by the BS to start MS scan reporting with or without scanning allocation |
Basic |
60 |
MOB_SCN-REP, Scanning result Report |
The MS transmits a MOB_SCN-REP message to report the scanning results to its serving BS after each scanning period at the time indicated in the MOB_SCN-RSP message |
Primary management |
66 |
MOB_ASC-REP, Association result Report |
When association level 2 (network assisted association reporting) is used, the Serving BS may aggregate all the RNG-RSP messages it receives through the backbone from neighbour BSs into a single MOB_ASC-REP message, which the Serving BS then sends to the MS |
Primary management |
56 |
MOB_BSHO-REQ, BS HO Request |
The BS may transmit a MOB_BSHO-REQ message when it wants to initiate a handover |
Basic |
57 |
MOB_MSHO-REQ, MS HO Request |
The MS may transmit at MOB_MSHO-REQ message when it wants to initiate a handover |
Basic |
58 |
MOB_BSHO-RSP, BS HO Response |
The BS transmits an MOB_BSHO-RSP message upon reception of an MOB_MSHO-REQ message |
Basic |
59 |
MOB_HO-IND, HO Indication |
An MS transmits the MOB_HO-IND message, giving an indication that it is about to perform a handover. When the MS cancels or rejects the handover, it also transmits the MOB_HO-IND message with a proper indication |
Basic |
Sleep mode messages |
|||
---|---|---|---|
Type (8 bits) |
Message name |
Description |
Type of connection |
50 |
MOB_SLP-REQ, Sleep Request |
Sent by a Sleep mode supporting MS to request definition and/or activation of certain Sleep mode power-save classes |
Basic |
51 |
MOB_SLP-RSP, Sleep Rsponse |
Sent from the BS to an MS on Broadcast CID or on the MS Basic CID in response to an MOB_SLP-REQ message, or unsolicited. May contain the definition of a new Sleep Mode Power Saving Class or signal activation |
Basic |
52 |
MOB_TRF-IND, Traffic Indication |
Sent from the BS to an MS in a Sleep mode that has one or more Sleep Mode Power-Saving Class Type I. This message, sent during those MS listeneing intervals, indicates whether there has been traffic addressed to any MS that is in Sleep mode |
Broadcast |
Idle mode message |
|||
---|---|---|---|
Type (8 bits) |
Message name |
Description |
Type of connection |
61 |
MOB_PAG-ADV, BS broadcast PAGing |
Sent by the BS on the Broadcast CID or Idle mode multicast CID during the BS Paging Interval. Indicates, for a number of Idle mode supporting MSs, the requirement of performing ranging to establish the location, acknowledge a message or to Enter Network |
Broadcast |
Present versions of IEEE 802.16g amendment draft include some new MAC management messages. This amendment should be published before the end of the first half of 2007 (October 2006 information).