1. Submission Title: [Extend-Superframe and GTS Structure]
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Extend-Superframe and GTS Structure]
Date Submitted: [Jan 12, 2007 ]
Source: [Pei Liu, Paul Dixon]
Company: [Hisilicon]
Address: [
Voice:[ ],
Re: [IEEE e group]
Abstract: [The extend superframe and GTS proposal is presented in this document. This extension can improve the throughput and latency performance of WPANs, and it’s compatible with the current standard.]
Purpose: [To encourage discussion.]
Notice: This document has been prepared to assist the Chinese WPAN group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor acknowledges and accepts that this contribution becomes the property of C- WPAN and may be made publicly available by C-WPAN.
Submission
Pei Liu

2. Outline
Motivation
E-GTS Structure
Modifications
Submission
Pei Liu

3. Motivation
WPAN chips are applied in many types of electronic devices, including personal devices, WSN devices, etc.
Different equipments have different data length and QoS requirements.
The current superframe structure may not offer sufficient GTS slots for different QoS within one WPAN.
Submission
Pei Liu

4. Current GTS
In order to ensure the CAP period length, total GTS are not more than 7 slots.
Only one device (or pair-device) is allowed to use one GTS
The granularity of GTS is one slot, where it is too large to short data packet in many application scenarios.
Submission
Pei Liu

5. Extended-GTS
A more flexible way to allocate and use GTS which allow the devices to share one GTS for increasing throughput and QoS
GTS requirement frame format includes the features of service
Allows a device to share a GTS with other device(s)
GTS is allocated based on resource and GTS requirement
Submission
Pei Liu

6. E-GTS Structure
Device A and B share one GTS
Submission
Pei Liu

7. Modified GTS Request Command
Where GTS characteristics to be expanded to 3 octet for service features
Submission
Pei Liu

8. GTS Allocation Procedure
K is the number of GTS allocations
N is the number of shared allocations
n is the number of allocations requested
Submission
Pei Liu

9. Simulation Results
Submission
Pei Liu

10. Simulation Results
proposed:
DC = 0.5
SO = 0
Submission
Pei Liu

11. Thank you!
Submission
Pei Liu