Annex on TG1 detection for 802.22 draft April 2008 doc.: IEEE 802.22-08/xxxxr0 April 2008 Annex on TG1 detection for 802.22 draft IEEE P802.22 Wireless RANs Date: 2008-04-16 Authors: Notice: This document has been prepared to assist IEEE 802.22. 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 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 802.22. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures http://standards.ieee.org/guides/bylaws/sb-bylaws.pdf including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair Carl R. Stevenson as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.22 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at patcom@iee.org. > Baowei Ji, Samsung
Outline Background information (IEEE 802.22.1) April 2008 doc.: IEEE 802.22-08/xxxxr0 April 2008 Outline Background information (IEEE 802.22.1) Receiver Reference Diagram Synch Burst Detection Scheduling Long-Quiet Period Decision Flow Chart Baowei Ji, Samsung
802.22.1: Parameters Chip period: 13. µs PN sequence: 104.1 µs April 2008 802.22.1: Parameters Chip period: 13. µs PN sequence: 104.1 µs Symbol period: 104.1 µs Baowei Ji, Samsung
802.22.1: Superframe Logical Format April 2008 802.22.1: Superframe Logical Format Chip period: 13 µs Symbol period: 104.1 µs Slot: 3.3 ms (32 symbols) Superframe: 103.2 ms (31 slots) Baowei Ji, Samsung
802.22.1: Beacon Frame Structure April 2008 802.22.1: Beacon Frame Structure Chip period: 13 µs Symbol period: 104.1 µs Slot: 3.3 ms Superframe: 103.2 ms MSF1: 28.4 ms MSF1-2: 70.9 ms MSF1-3: 98.2 ms Baowei Ji, Samsung
802.22.1: Synch Burst Chip period: 13 µs April 2008 802.22.1: Synch Burst Chip period: 13 µs Symbol period: 104.1 µs (8 chips) Slot: 3.3 ms (32 symbols) Superframe: 103.2 ms (31 slots) MSF1: 28.4 ms MSF1-2: 70.9 ms MSF1-3: 98.2 ms Synch sequence: 1.6 ms (15 symbols) Synch burst: 3.1 ms (30 symbols) Baowei Ji, Samsung
April 2008 802.22.1: Modulation Baowei Ji, Samsung
TG1 Detection: Reference Block Diagram April 2008 TG1 Detection: Reference Block Diagram Baowei Ji, Samsung
April 2008 Sensing Time: TBD Baowei Ji, Samsung Slide 9
Initi. Period: 0.8328 ms (8* PN sequences) April 2008 Sensing Time: Initi. Period: 0.8328 ms (8* PN sequences) Worst case: 2.8 ms (19 idle symbols + 8 PN sequences) Baowei Ji, Samsung Slide 10
April 2008 Sensing Time: 5.1 ms Baowei Ji, Samsung Slide 11
April 2008 Sensing Time: 28.4 ms Baowei Ji, Samsung Slide 12
April 2008 Sensing Time: 70.9 ms Baowei Ji, Samsung Slide 13
April 2008 Sensing Time: 98.3 ms Baowei Ji, Samsung Slide 14
TG1 Detection: Sensing Time April 2008 TG1 Detection: Sensing Time Baowei Ji, Samsung
Synch Burst Detection in Initialization Period April 2008 Synch Burst Detection in Initialization Period 46 + 1 + 2 symbols 46-Symbol window 46-Symbol window Baowei Ji, Samsung
Synch Burst Detection out of Initialization Period (1/5) April 2008 Synch Burst Detection out of Initialization Period (1/5) Cognitive Receiver (a decision block) Baowei Ji, Samsung
Synch Burst Detection out of Initialization Period (2/5) April 2008 Synch Burst Detection out of Initialization Period (2/5) Baowei Ji, Samsung
Synch Burst Detection out of Initialization Period (3/5) April 2008 Synch Burst Detection out of Initialization Period (3/5) Baowei Ji, Samsung
Synch Burst Detection out of Initialization Period (4/5) April 2008 Synch Burst Detection out of Initialization Period (4/5) Baowei Ji, Samsung
Synch Burst Detection out of Initialization Period (5/5) April 2008 Synch Burst Detection out of Initialization Period (5/5) Baowei Ji, Samsung
Synch Burst Detection out of Initialization Period April 2008 Synch Burst Detection out of Initialization Period Other options Use two 5.1-ms windows Use one 8.4-ms window Baowei Ji, Samsung
TG1 Detection: Scheduling Long-Quiet Period April 2008 TG1 Detection: Scheduling Long-Quiet Period length of required quiet period 29.1396ms (MSF1) 71.600160 ms (MSF1+MSF2) 98.2421ms (MSF1+MSF2+MSF3) mean latency before scheduling a long period 32 ms (<1 superframe) 88 ms 145 ms max latency before scheduling a long period 160 ms (1 superframe,) 320 ms (2 superframes) Baowei Ji, Samsung
TG1 Detection: Decision Flow Chart during a 5.1-ms Period (1/2) April 2008 TG1 Detection: Decision Flow Chart during a 5.1-ms Period (1/2) Baowei Ji, Samsung
TG1 Detection: Decision Flow Chart during a 5.1-ms Period (2/2) April 2008 TG1 Detection: Decision Flow Chart during a 5.1-ms Period (2/2) Baowei Ji, Samsung
TG1 Detection: Decision Flow Chart during a long quiet Period April 2008 Baowei Ji, Samsung
TG1 Detection: Conclusions April 2008 TG1 Detection: Conclusions More details found in document 07/0491r4 Baowei Ji, Samsung