High Level Views on Multicarrier Operations for IEEE 802.16m Document Number: S802.16m-08/327 Date Submitted: 2008-05-6 Source: Kelvin

High Level Views on Multicarrier Operations for IEEE 802.16m

Document Number: S802.16m-08/327Date Submitted: 2008-05-6

Source:Kelvin Chou [email protected] Yih-Shen Chen [email protected] I-Kang Fu [email protected] Paul Cheng [email protected]

MediaTek Inc.No.1, Dusing Rd. 1, HsinChu Science-Based Industrial Park, HsinChu, Taiwan 300, R.O.C.

Venue: Macau, ChinaBase Contribution: C802.16m-08/327 Purpose: To be discussed and adopted by TGm for the 802.16m SDD.

Notice:

This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein.

Release:The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16.

Patent Policy:The contributor is familiar with the IEEE-SA Patent Policy and Procedures:

<http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and <http://standards.ieee.org/guides/opman/sect6.html#6.3>.Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and <http://standards.ieee.org/board/pat >.

http://standards.ieee.org/guides/bylaws/sect6-7.html#Slide%206

http://standards.ieee.org/guides/bylaws/sect6-7.html#Slide%206

2

Sketch of the Multicarrier System

• What we want to know about the system

– How does it look like?

– How does it operate?

– What it can do? What it cannot do?

3

802.16e System State Diagram

Power Down

Power On

Scanning and DL Synchronization

(Preamble Detection)

Initialization State

Ranging and UL synchronization(RNG- REQ/RSP)

Registration with Serving BS

(REG- REQ/RSP)

MAC CID Establishment

IP Address Assignment

Sleep mode

Connected State

PagingAvailable

PagingUnavailable

Idle State

DL MAP (Common Control Channel)

Acquisition

Broadcast Channel Acquisition (DCD/

UCD)

Cell Selection Decision

Basic Capability Negotiation

(SBC- REQ/RSP)

MS Authentication, Authorization & Key

Exchange (PKMv2/EAP)

Sleep Interval

Listening Interval

Power Off

NetworkRe- entry

Fast Re- Entry

: In case of failure

: Normal case

Access State

Active Mode

HandoverInitialization

Scanning Mode

HandoverExecution

Normal Re- Entry

4

Multicarrier System State Overview

802.16m MS

RF 1

MAC

Power Off

Initial

Access

Connected

Idle

RF 2

Power Off

Initial

Access

Connected

Idle

RF n

Power Off

Initial

Access

Connected

Idle

5

Possible MS States

• Example– An MS with 2 RF carriers– Markovian States

• 0: power off state• 1: initial state• 2: access state• 3: connected state• 4: idle state

1,3 2,30,3 3,3

1,2 2,20,2 3,2

1,1 2,10,1 3,1

1,0 2,00,0 3,0

2,1

1,2

1,4 2,40,4 4,3 4,4

4,3

4,2

4,1

4,0

RF2 state

RF1 state

6

Possible MS States (cont.)

• Idle mode assumptions– Idle is idle, no more activity– One idle carrier is enough

1,3 2,30,3 3,3

1,2 2,20,2 3,2

1,1 2,10,1 3,1

1,0 2,00,0 3,0

2,1

1,2

1,4 2,40,4 4,3 4,4

4,3

4,2

4,1

4,0

3: Connected state4: Idle state

State: (RF1, RF2)0: Power off state1: Initial state2: Access state

7



• Initialization assumptions– One-by-one RF activation 1,3 2,30,3 3,3

1,2 2,20,2 3,2

1,1 2,10,1 3,1

1,0 2,00,0 3,0

2,1

1,2

0,4

4,0



8



• Initialization assumptions– One-by-one RF activation

• Functionalities– Every RF carrier can be the

primary carrier– Data transmission can go

parallel with other operations such as HO



1,3 2,3 3,3

3,2

3,1

1,0 2,00,0 3,0 4,0

0,3

0,2

0,1

0,4

9

MS System Flows with N RF carriers

RF#N

Cell search

Primary / secondary

bands identification

System information acquisition

Cell/bandselection

Network entry

Multi-carrier capability

negotiation

Normal operations

EMBS

Fast network entry Scanning

Data transmission

RF#3

Cell search

Primary / secondary



Cell/bandselection

Network entry


negotiation

Normal operations

EMBS


Data transmission

RF power off

RF power onRF#2

Cell search

Primary / secondary



Cell/bandselection

Network entry


negotiation

Normal operations

EMBSFast network entry

Scanning

Data transmission

RF power off

RF power on

MS System On

MS System off

RF#1

Idle

Multi-carrier assisted operationsRF power on

RF power off

Cell search

Primary bands identification


Cell/bandselection

Network entry


negotiation

Fast network entry

Disable supplementary

RF

Enable supplementary

RF

Normal operations

EMBS

Handover decision

ScanningData transmission

Multicarrier management

10

Text Proposal19.1 Multicarrier System Overview

With the support of multiple RF carriers, the overall state of a 16m MS is determined by the current behavior of each individual RF carrier, which will be the combination of all its RF carrier states. The system operation flow of a MS with N RF carriers (labeled as RF#1 to RF#N) is illustrated in Figure xx. The numbering of the RF carriers may be mapped to the physical RF carriers in an arbitrary order depending on the system configuration. The system flows are described as follows.

After the MS is powered on, its primary carrier (RF#1) is initialized first. The MS performs cell search via RF#1 to locate the cell and band it wishes to join. The cell search procedures include primary bands identification, system information acquisition, cell selection, and band selection. The BS may broadcast the information of its primary bands and other alternative bands for the MS to expedite its synchronization process.

Once the target BS (and band) has been decided, the MS performs network entry procedures to establish basic connections with the target BS. During the network entry, the MS and BS negotiate their multi-carrier capabilities as a reference for further scheduling. After network entry procedures are done, the target BS becomes the serving BS of the MS, and the MS starts its normal operations.

The MS may perform its normal operations, such as data transmission, scanning, handover decision and EMBS, using single RF carrier (RF#1). It may also enable additional RF carriers to assist its normal operations. The initialization and network entry process of the supplementary RF carrier may be simplified with the assistance of currently active carriers. The functionalities of the supplementary RF carrier (blocks with dash lines in Figure YY) may be performed or skipped according to the requirement of its dedicated operations.

11Figure xx. MS operation flow with multiple RF carriers

RF#N

Cell search

Primary / secondary



Cell/bandselection

Network entry


negotiation

Normal operations

EMBS


Data transmission

RF#3

Cell search

Primary / secondary



Cell/bandselection

Network entry


negotiation

Normal operations

EMBS


Data transmission

RF power off

RF power onRF#2

Cell search

Primary / secondary



Cell/bandselection

Network entry


negotiation

Normal operations

EMBSFast network entry

Scanning

Data transmission

RF power off

RF power on

MS System On

MS System off

RF#1

Idle

Multi-carrier assisted operationsRF power on

RF power off

Cell search

Primary bands identification


Cell/bandselection

Network entry


negotiation

Fast network entry

Disable supplementary

RF

Enable supplementary

RF

Normal operations

EMBS Handover decision

ScanningData transmission

Text Proposal (cont.)

Documents

High Level Views on Multicarrier Operations for IEEE 802.16m Document Number: S802.16m-08/327 Date Submitted: 2008-05-6 Source: Kelvin