National 5 Mathematics Topic: Vectors Past Paper Questions

This resource provides a collection of past paper questions for the National 5 Mathematics topic on vectors. The questions aim to help students practice and improve their understanding of vector concepts and applications. Each question is designed to challenge students and enhance their problem-solving skills in this topic.

• Mathematics
• Vectors
• National 5
• Practice Questions
• Problem-solving

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1. March 2022 doc.: IEEE 15-22-0174-00-04ab Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: U-NII band status of Japan for consideration to NB-assisted UWB Date Submitted: March xx 2022 Source: Huan-Bang Li, Homare Murakami, Takeshi Matsumura (NICT, Japan) Address: 3-4 Hikarino-oka, Yokosuka-shi, Kanagawa, 239-0847 Japan E-Mail: {lee, homa, matsumura}@nict.go.jp Abstract: Show UNII band status and proposed future plan in Japan as reference for discussing NB assisted UWB. Purpose: To improve coexistence among UWB systems. Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the authoring individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The authors(s) reserve(s) the right to add, amend or withdraw material contained herein. U-NII band status Slide 1 H.-B. Li, H. Murakami, T. Matsumura (NICT)

2. March 2022 doc.: IEEE 15-22-0174-00-04ab PAR Objective Safeguards so that the high throughput data use cases will not cause significant disruption to low duty-cycle ranging use cases Interference mitigation techniques to support higher density and higher traffic use cases Other coexistence improvement Proposed Solution (how addressed) Effective and efficient CCA reduce disruption between UWB devices Use pilot NB radio as pilot to facilitate CCA so as to improve coexistence. Use pilot NB radio to improve coexistence among UWB devices. Backward compatibility with enhanced ranging capable devices (ERDEVs) Improved link budget and/or reduced air-time Additional channels and operating frequencies Improvements to accuracy / precision / reliability and interoperability for high-integrity ranging Reduced complexity and power consumption Hybrid operation with narrowband signaling to assist UWB Exploiting pilot NB PHY and concurrent operation with UWB to assist UWB channel access Enhanced native discovery and connection setup mechanisms Sensing capabilities to support presence detection and environment mapping Low-power low-latency streaming Higher data-rate streaming allowing at least 50 Mbit/s of throughput Support for peer-to-peer, peer-to-multi-peer, and station-to- infrastructure protocols Infrastructure synchronization mechanisms U-NII band status Slide 2 H.-B. Li, H. Murakami, T. Matsumura (NICT)

3. March 2022 doc.: IEEE 15-22-0174-00-04ab Contents 1. Background 2. Purpose 3. Current status of U-NII band for WLAN in Japan 4. Public comments are solicited for the plan of using U-NII-5 band 5. Summary U-NII band status Slide 3 H.-B. Li, H. Murakami, T. Matsumura (NICT)

4. March 2022 doc.: IEEE 15-22-0174-00-04ab Background Within IEEE 802.15.4ab, narrowband assisted UWB (concurrent operation of UWB and narrowband radio) is considered of significant potentials. Proposed examples include but not limited to the followings. - clear channel assessment / channel access. - link budget improvement. - efficient wake-up /discovery. - offloading status signaling. - reduce UWB airtime NICT showed examples of using sub-GHz band available in Japan (15-22-0065- 00-04ab) Apple, etc. proposed U-NII-3 as narrowband candidate (15-22-0064-00-04ab) Qualcomm suggests to use open interface including U-NII-3, BLE, etc. (15-22- 0156-00-04ab) U-NII band status Slide 4 H.-B. Li, H. Murakami, T. Matsumura (NICT)

5. March 2022 doc.: IEEE 15-22-0174-00-04ab Purpose Present U-NII band status in Japan Review current usage of U-NII-1, 2 bands for WLAN Show proposed future plan of U-NII-5 band in comparison with USA and EU Provide reference for discussion on narrowband-assisted UWB U-NII band status Slide 5 H.-B. Li, H. Murakami, T. Matsumura (NICT)

6. Current Status March 2022 doc.: IEEE 15-22-0174-00-04ab BW=20MHz BW=40MHz BW=80MHz BW=160MHz Can be used outdoor. DFS, TPC required 80MHz & 80MHz DFS, TPC required U-NII band status Slide 6 H.-B. Li, H. Murakami, T. Matsumura (NICT)

7. March 2022 doc.: IEEE 15-22-0174-00-04ab Revision Continues Revision May 2005 (U-NII-1) (U-NII-2A) Revision Jan. 2007 (U-NII-2C) Revision July 2019 (U-NII-2C+) When will be the next revision? How about U-NII 3 and above U-NII band status Slide 7 H.-B. Li, H. Murakami, T. Matsumura (NICT)

8. March 2022 doc.: IEEE 15-22-0174-00-04ab Proposed Future Plan MIC issued a report on March 2, 2022. In this report, U-NII-5 is newly proposed for WLAN operation. Public comments are solicited for the proposed new plan on U-NII-5 until April 1. Further steps are expected to enable the proposed new plan in near future. MIC: Ministry of Internal Affair and Communications, which is in charge of radio regulation of Japan U-NII band status Slide 8 H.-B. Li, H. Murakami, T. Matsumura (NICT)

9. March 2022 doc.: IEEE 15-22-0174-00-04ab Proposed New Plan on U-NII-5 Japan under- plan USA ready EU ready frequency (MHz) access point 5925-6425 6525-6875 e.i.r.p.= 36dBm PSD = 23dBm/MHz e.i.r.p.= 30dBm PSD = 17dBm/MHz Standard Power client Frequency (MHz) access point 5925-7125 5925-6425 5925-6425 Low power indoor e.i.r.p.= 30dBm PSD = 5dBm/MHz e.i.r.p.= 24dBm PSD = -1dBm/MHz e.i.r.p.= 23dBm PSD = 10dBm/MHz e.i.r.p.= 23dBm PSD = 10dBm/MHz client Frequency (MHz) access point 5925-6425 5925-6425 Very Low power e.i.r.p.= 14dBm PSD = 1dBm/MHz e.i.r.p.= 14dBm PSD = 1dBm/MHz Slide 9 U-NII band status H.-B. Li, H. Murakami, T. Matsumura (NICT) client

10. March 2022 doc.: IEEE 15-22-0174-00-04ab Summary Freq. range (GHz) Name Availability in Japan U-NII-1 5.15-5.25 Ready (5.17-5.25) U-NII-2A 5.25-5.35 Ready (5.25-5.33) U-NII-2C 5.47-5.725 Ready (5.49-5.73) U-NII-3 5.725-5.85 allocated to ITS/DSRC U-NII-5 5.925-6.425 Under plan U-NII band status Slide 10 H.-B. Li, H. Murakami, T. Matsumura (NICT)