A.1 The MAC Management Messages added by 802.16e

The following MAC management messages were defined in 802.16e. They are about mobility, power-save modes, power control, MBS and MIMO.

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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

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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	-

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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

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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

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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

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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).