A Framework for HRMS to HRMS Direct Communication

A Framework for HR-MS to HR-MS Direct Communication without Infrastructure Stations Document Number: IEEE S 802. 16 n-10/0008 Date Submitted: 2011 -03 -12. Source: Haiguang Wang, Hoang Anh Tuan, Jaya Shankar, Shoukang Zheng, Yeow Wai Leong, Joseph Teo Chee Ming, Mar Choong Hock Institution for Infocomm Research (I 2 R) 1 Fusionopolis Way, #21 -01, Connexis (South Tower) Singapore 138632 *<http: //standards. ieee. org/faqs/affiliation. FAQ. html> Voice: E-mail: +65 6408 2256 haiguang. wang@gmail. com Re: Call for contributions for 802. 16 n AWD Base Contribution: IEEE C 802. 16 n-10/0008 Purpose: To discuss and adopt the proposed text in the 802. 16 n draft Text 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. Copyright Policy: The contributor is familiar with the IEEE-SA Copyright Policy <http: //standards. ieee. org/IPR/copyrightpolicy. html>. Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: <http: //standards. ieee. org/guides/bylaws/sect 6 -7. html#6> and <http: //standards. ieee. org/guides/opman/sect 6. html#6. 3>. Further information is located at <http: //standards. ieee. org/board/pat-material. html> and <http: //standards. ieee. org/board/pat >.

Abstract • In this contribution, we propose a framework for the HR-MSs communicate to each in case there is no infrastructure station such as HRBS or HR-RS presented in the network.

System Requirement

Usage Scenario

Communication Modes • Two communication modes – Infrastructure mode – Ad Hoc Mode

Ad Hoc Mode • Three system states – Initialization state: set node to ad hoc mode – Discovery state: find other HR-MSs or HR-MS networks in vicinity and broadcast information of current node. – Communication state: the HR-MS associates to an HR-MS networks. It now can communicate to other nodes within the network

Functionalities of Coordinators • Coordinator – Transmit frame preambles regularly. – Accept network association and de-assoication. – Manage the radio resource. – Schedule the data transmission.

Summary • In this contribution, we propose a framework for 802. 16 n HR-MSs in setting up HR-MS direct communication network by themselves without turning any node into base station or relay station.

Proposed Text • 17. 1 Overview An HR-MS should be able to work in two communication modes, infrastructure mode or ad hoc mode. In infrastructure mode, it can only transmit when it synchronization to an infrastructure stations such as HR-BS or HR-RS. In ad hoc mode, an HRMS is allowed to transmit information before it synchronizes to any other HR stations.

Proposed Text 17. 2. 2. 1 A Framework for the Direct communication between HR-MSs in ad hoc mode In ad hoc mode, an HR-MS can be in three states as following Figure shows. • Initialization state: initialize the system for ad hoc mode. • Discovery state: only transmit node configuration information from time to time. • Communication state: setup communication links with other HR-MS and transmit data to each other. Figure XXX: State machine for HR-MS in Ad Hoc Mode

Proposed Text During the initialization for HR-MS direct communication without infrastructure, HR-MS should set its working mode as ad hoc mode. After initialization, HR-MS should listen to channel first. It should check whethere are other HR-MSs or HR-MSs networks formed by HR-MSs in the same area. The HR-MS should transmit some node information to let other HR-MSs know its existence. For the HR-MSs to communicate each other, a HR-MS network should be setup first. One of HR-MS should play the role of coordinator. The functionality of coordinator is to transmit frame preambles and DL/UL MAP regularly, manage the node association and leaving, mange the radio resource etc.