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

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High Level Views on Multicarrier Operations for IEEE m Document Number: S802.16m-08/327 Date Submitted: Source: Kelvin Yih-Shen I-Kang Paul MediaTek Inc. No.1, Dusing Rd. 1, HsinChu Science-Based Industrial Park, HsinChu, Taiwan 300, R.O.C. Venue: Macau, China Base Contribution: C802.16m-08/327 Purpose: To be discussed and adopted by TGm for the m SDD. Notice: This document does not represent the agreed views of the IEEE 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 Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and. Further information is located at and.

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?

e System State Diagram

4 Multicarrier System State Overview

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 RF2 state RF1 state

6 Possible MS States (cont.) Idle mode assumptions –Idle is idle, no more activity –One idle carrier is enough 3: Connected state 4: Idle state State: (RF1, RF2) 0: Power off state 1: Initial state 2: Access state

7 Possible MS States (cont.) Idle mode assumptions –Idle is idle, no more activity –One idle carrier is enough Initialization assumptions –One-by-one RF activation 3: Connected state 4: Idle state State: (RF1, RF2) 0: Power off state 1: Initial state 2: Access state

8 Possible MS States (cont.) Idle mode assumptions –Idle is idle, no more activity –One idle carrier is enough 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 3: Connected state 4: Idle state State: (RF1, RF2) 0: Power off state 1: Initial state 2: Access state

9 MS System Flows with N RF carriers

10 Text Proposal 19.1 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.

11 Figure xx. MS operation flow with multiple RF carriers Text Proposal (cont.)