Consultation on Allocation Changes and Revisions to Spectrum Utilization Policy and Technical Rules in the 5 GHz Band

Appendix 1 - Proposed Allocation Changes

The proposals contained in this section are identified as modifications to the version of the Canadian Table of Frequency Allocations which reflects most of the allocation decisions of WRC-2000.

underlining starts Underlining underlining ends
When used in the Table, underlining proposes the addition of a radio service or footnote. It is also used in the text of Canadian footnotes to identify proposed additional text.
strikeout starts Strikeout strikeout ends
When used in the Table, a strikeout proposes the deletion of a radio service or footnote. It is also used in the text of Canadian footnotes to identify proposed deleted text.
5.xxx
This is the form of the designation of international footnotes.
CXX
This identifies a Canadian footnote.
MOD
This indicates an international footnote modified at WRC-2003 or a Canadian footnote proposed for modification. These appear in both the Table and in the list of footnotes.
ADD
This is used in a list of footnotes to indicate an international footnote created at WRC-2003 or a proposed new Canadian footnote.
Table Entry
A Table Entry printed in text-uppercase letters are referred to as "primary" services, while those printed in lower case are referred to as "secondary" services. Refer to the Canadian Table of Frequency Allocations for the distinction between primary and secondary services.

Note:  The text of international footnotes is not open for consideration in this discussion paper and consequently the modifications to footnotes made at WRC-2003  are incorporated but not identified.

Canadian Table of Frequency Allocations MHz
Frequency Band
MHz
Primary and Secondary Services
5 150 - 5 250 AERONAUTICAL RADIONAVIGATION primary service
FIXED-SATELLITE (Earth-to-space) 5.447A primary service
proposed addition starts MOBILE primary service except aeronautical mobile 5.446A 5.446B proposed addition ends

5.446 5.447B 5.447C proposed deletion starts C39A proposed deletion ends proposed addition starts CXX proposed addition ends
5 250 - 5 255

EARTH EXPLORATION-SATELLITE primary service (active)
RADIOLOCATION primary service
SPACE RESERARCH primary service  5.447D
proposed addition starts MOBILE primary service except aeronautical mobile 5.446A 5.447F proposed addition ends

MOD 5.448A proposed deletion starts C39A proposed deletion ends proposed addition starts CXX proposed addition ends

5 255 - 5 350 EARTH EXPLORATION-SATELLITE primary service (active)
RADIOLOCATION primary service
SPACE RESEARCH primary service (active)
proposed addition starts MOBILE primary service except aeronautical mobile 5.446A 5.447F proposed addition ends

MOD 5.448A proposed deletion starts C39A proposed deletion ends proposed addition starts CXX proposed addition ends
5 350 - 5 460

AERONAUTICAL RADIONAVIGATION primary service 5.449
EARTH EXPLORATION-SATELLITE primary service (active) MOD 5.448B
proposed addition starts RADIOLOCATION primary service 5.448D proposed addition ends
proposed addition starts SPACE RESEARCH primary service (active) 5.448C proposed addition ends
proposed deletion starts Radiolocation secondary service proposed deletion ends

proposed deletion starts C39A proposed deletion ends

5 460 - 5 470 RADIONAVIGATION primary service 5.449
proposed addition starts EARTH EXPLORATION-SATELLITE primary service (active) MOD 5.448B
SPACE RESEARCH primary service (active)
RADIOLOCATION primary service 5.448D proposed addition ends
proposed deletion starts Radiolocation secondary service proposed deletion ends
5 470 - 5 570 MARITIME RADIONAVIGATION primary service
proposed addition starts MOBILE primary service except aeronautical mobile 5.446A 5.450A
EARTH_EXPLORATION-SATELLITE primary service (active) MOD 5.448B
SPACE RESEARCH primary service (active)
RADIOLOCATION primary service 5.450B
proposed addition ends
proposed deletion starts Radiolocation secondary service proposed deletion ends

5.452 proposed addition starts CXX proposed addition ends
5 570 - 5 650

MARITIME NAVIGATION primary service
proposed addition starts MOBILE primary service except aeronautical mobile 5.446A 5.450A
RADIOLOCATION primary service 5.450B
proposed addition ends
proposed deletion starts Radiolocation secondary service proposed deletion ends

5.452  proposed addition starts CXX proposed addition ends

5 650 - 5 725 RADIOLOCATION primary service
proposed addition starts MOBILE primary service except aeronautical mobile 5.446A 5.450A proposed addition ends
Amateur secondary service
Space Research (deep space) secondary service

5.282 CXX
5725 - 5850 RADIOLOCATION primary service
Amateur secondary service

5.150 MOD C39A
MOD C39A
The bandproposed deletion startss 5150-5250 MHz, 5250-5350 MHz, and proposed deletion ends 5725-5825 MHz proposed deletion startsareproposed deletion ends proposed addition starts is proposed addition ends designated for use by licence exempt wireless local area networks and devices with established maximum power levels and based upon not interfering with, or claiming protection from, licensed services.

ADD CXX
The use of the bands 5150-5250 MHz, 5250-5350 MHz, and 5470-5725 MHz by the mobile service will be in accordance with spectrum policy and technical and operational limits to be established for the implementation of wireless local area networks and devices.

ADD 5.446A (WRC-03)
The use of the bands 5 150-5 350 MHz and 5 470-5 725 MHz by the stations in the mobile service shall be in accordance with Resolution 229 (WRC-03).

ADD 5.446B (WRC-03)
In the band 5 150-5 250 MHz, stations in the mobile service shall not claim protection from earth stations in the fixed-satellite service. Number 5.43A does not apply to the mobile service with respect to FSS earth stations.

ADD 5.447F (WRC-03)
In the band 5 250-5 350 MHz, stations in the mobile service shall not claim protection from the radiolocation service, the Earth exploration-satellite service (active) and the space research service (active). These services shall not impose on the mobile service more stringent protection criteria, based on system characteristics and interference criteria, than those stated in Recommendations ITU-R M.1638 and ITU-R SA.1632.

MOD 5.448A (WRC-03)
The Earth exploration-satellite (active) and space research (active) services in the frequency band 5 250-5 350 MHz shall not claim protection from the radiolocation service. Number 5.43A does not apply.

MOD 5.448B (WRC-03)
The Earth exploration-satellite service (active) operating in the band 5 350-5 570 MHz and space research service (active) operating in the band 5 460-5 570 MHz shall not cause harmful interference to the aeronautical radionavigation service in the band 5 350-5 460 MHz, the radionavigation service in the band 5 460-5 470 MHz and the maritime radionavigation service in the band 5 470-5 570 MHz.

ADD 5.448C (WRC-03)
The space research service (active) operating in the band 5 350-5 460 MHz shall not cause harmful interference to nor claim protection from other services to which this band is allocated.

ADD 5.448D (WRC-03)
In the frequency band 5 350-5 470 MHz, stations in the radiolocation service shall not cause harmful interference to, nor claim protection from, radar systems in the aeronautical radionavigation service operating in accordance with Number 5.449.

ADD 5.450A (WRC-03)
In the band 5 470-5 725 MHz, stations in the mobile service shall not claim protection from radiodetermination services. Radiodetermination services shall not impose on the mobile service more stringent protection criteria, based on system characteristics and interference criteria, than those stated in Recommendation ITU-R M.1638.

ADD 5.450B (WRC-03)
In the frequency band 5 470-5 650 MHz, stations in the radiolocation service, except ground-based radars used for meteorological purposes in the band 5 600-5 650 MHz, shall not cause harmful interference to, nor claim protection from, radar systems in the maritime radionavigation service.

Appendix 2 - Excerpts from Annex 1 to Recommendation ITU-R M.1652

Dynamic Frequency Selection in Wireless Access Systems Including Radio Local Area Networks for the Purpose of Protecting the Radiodetermination Service in the 5 GHz Band

Annex 1 to Recommendation ITU-R M.1652

The Use of Dynamic Frequency Selection (DFS) in WAS including RLANs for the Purpose of Protecting the Radiodetermination Service in the 5 GHz Band

1. Introduction

 1.1 DFS

Resolution 736 (WRC-2000) calls, inter alia, for studies on the feasibility of sharing between the mobile service for WAS Footnote a and the radiodetermination service in the frequency bands 5 250-5 350 and 5 470-5 725 MHz. Link budget calculations have shown that interference mitigation techniques are required to enable sharing of WAS with other services such as radar systems. This Recommendation describes the interference mitigation technique(s) DFS Footnote b as specified in the 5 GHz RLAN standards, with performance calculations based on typical implementations.

WAS and radars operating in the 5 GHz band will interfere when operating at the same frequencies and within range of each other.

DFS has then been envisaged to: 

  • ensure a spread of the loading across the available spectrum of the WAS under the field of view of a satellite to reduce the aggregate emission levels at the satellites of the FSS (feeder links) and EESS (active) from WAS; and
  • avoid co-channel operation with other systems, notably radar systems.

Extension of the use of DFS as described herein allows WAS to avoid interfering with the radiodetermination service. The general principle applied is that WAS should detect interference and identify radar interferers and shall not use those frequencies used by the radar.

 1.2 Objective of the Use of DFS with Respect to Radars

The objective of using DFS in WAS is to provide adequate protection to radars in the 5 GHz band. This is achieved by avoiding the use of, or vacating, a channel identified as being occupied by radar equipment based on detection of radar signals.

For the purpose of this Annex, a discussion of radiodetermination systems in the 5 GHz range utilized in determining DFS characteristics can be found in Annex 3 [Not attached in this consultation].

The implementation of radar detection mechanisms and procedures used by WAS are outside the scope of this Annex. The main reasons for this are that: 

  • WAS design affects implementation;
  • practical experience may lead to innovative and more efficient means than can be formulated today;
  • different manufacturers may make different implementation choices to achieve the lowest cost for a given level of performance; therefore only performance criteria rather than specifications for a particular mechanism should be given in regulatory documents.

2. DFS Performance Requirements

The DFS performance requirement is stated in terms of response to detection of an interference signal.

 5 GHz WAS should meet the following detection and response requirements.

Procedures for compliance verification should be incorporated in relevant industry standards for RLANs.

2.1 Detection Requirements

The DFS mechanism should be able to detect interference signals above a minimum DFS detection threshold of -62 dBm for devices with a maximum e.i.r.p. of < 200 mW and -64 dBm for devices with a maximum e.i.r.p. of 200 mW to 1 W Footnote c averaged over 1μs.

This is defined as the received signal strength (RSS) (dBm), normalized to the output of a 0 dBi receive antenna, that is required to be detected within the WAS channel bandwidth.

 2.2 Operational Requirements

The WAS should be able to perform channel availability check: A check during which the WAS listens on a particular radio channel for 60 s to identify whether there is a radar operating on that radio channel.

The WAS should be able to perform in-service monitoring: Monitoring of the operating channel to check that a co-channel radar has not moved or started operation within range of the WAS. During inservice monitoring the radar detection function continuously searches for radar signals in-between normal WAS transmissions. This requires the use of quiet spaces between successive WAS transmissions (See Annex 4) [Not attached in this consultation].

If the WAS has not previously been in operation or has not continuously monitored the channel with in-service monitoring, it should not start transmission in any channel before completion of a channel availability check.

2.3 Response Requirements

A channel that has been flagged as containing a radar signal, either by a channel availability check or in-service monitoring, is subject to a 30-minute period (non-occupancy period) where it cannot be used by the WAS device in order to protect scanning radars. The non-occupancy period should start at the time when the radar signal is detected.

Additionally, in the band 5 600-5 650 MHz, if a channel has been flagged as containing a radar, a 10-minute continuous monitoring of the flagged channel is required prior to use of that channel. Otherwise, other appropriate methods such as channel exclusion would be required.

Channel move time is defined as the period of 10 s needed by a WAS to cease all transmissions on the operating channel upon detection of an interfering signal above the DFS detection threshold. Transmissions during this period will consist of normal traffic for typically less than 100 ms and a maximum of 200 ms after detection of the radar signal. In addition, intermittent management and control signals can be sent during the remaining time to facilitate vacating the operating channel. The aggregate time of the intermittent management and control signals are typically less than 20 ms.

 2.4 Summary of the Requirements

Table 1 provides a summary of the requirements described above. An example of the operating procedures is given in Annex 2  [Not attached in this consultation].

Table 1
Parameter Value
DFS detection threshold-62 dBm for devices with a maximum e.i.r.p. of < 200 mW and
-64 dBm for devices with a maximum e.i.r.p. of 200 mW to 1 W averaged over 1 µs
Channel availability check time 60 s
Non-occupancy period 30 min
Channel move time ≤ 10 seconds

Appendix 3 - Resolution 229 (WRC-03)

Use of the Bands 5 150-5 250 MHz, 5 250-5 350 MHz and 5 470-5 725 MHz by the Mobile Service for the Implementation of Wireless Access Systems Including Radio Local Area Networks

The World Radiocommunication Conference (Geneva, 2003),

considering

(a) that this Conference has allocated the bands 5 150-5 350 MHz and 5 470-5 725 MHz on a primary basis to the mobile service for the implementation of wireless access systems (WAS), including Radio Local Area Networks (RLANs);

(b) that this Conference has decided to make an additional primary allocation for the Earth exploration-satellite service (EESS) (active) in the band 5 460-5 570 MHz and space research service (SRS) (active) in the band 5 350-5 570 MHz;

(c) that this Conference has decided to upgrade the radiolocation service to a primary status in the 5 350-5 650 MHz band;

(d) that the band 5 150-5 250 MHz is allocated worldwide on a primary basis to the fixed-satellite service (FSS) (Earth-to-space), this allocation being limited to feeder links of non-geostationary-satellite systems in the mobile-satellite service (Number 5.447A);

(e) that the band 5 150-5 250 MHz is also allocated to the mobile service, on a primary basis, in some countries (Number 5.447) subject to agreement obtained under Number 9.21;

(f) that the band 5 250-5 460 MHz is allocated to the EESS (active) and the band 5 250-5 350 MHz to the space research service (active) on a primary basis;

(g) that the band 5 250-5 725 MHz is allocated on a primary basis to the radiodetermination service;

(h) that there is a need to protect the existing primary services in the 5 150-5 350 MHz and 5 470-5 725 MHz bands;

(i) that results of studies in ITU-R indicate that sharing in the band 5 150-5 250 MHz between WAS, including RLANs, and the FSS is feasible under specified conditions;

(j) that studies have shown that sharing between the radiodetermination and mobile services in the bands 5 250-5 350 MHz and 5 470-5 725 MHz is only possible with the application of mitigation techniques such as dynamic frequency selection;

(k) that there is a need to specify an appropriate e.i.r.p. limit and, where necessary, operational restrictions for WAS, including RLANs, in the mobile service in the bands 5 250-5 350 MHz and 5 470-5 570 MHz in order to protect systems in the EESS (active) and SRS (active);

(l) that the deployment density of WAS, including RLANs, will depend on a number of factors including intrasystem interference and the availability of other competing technologies and services,

further considering

(a) that the interference from a single WAS, including RLANs, complying with the operational restrictions under resolves 2 will not on its own cause any unacceptable interference to FSS receivers on board satellites in the band 5 150-5 250 MHz;

(b) that such FSS satellite receivers may experience an unacceptable effect due to the aggregate interference from these WAS, including RLANs, especially in the case of a prolific growth in the number of these systems;

(c) that the aggregate effect on FSS satellite receivers will be due to the global deployment of WAS, including RLANs, and it may not be possible for administrations to determine the location of the source of the interference and the number of WAS, including RLANs, in operation simultaneously,

noting

that, prior to WRC-03, a number of administrations have developed regulations to permit indoor and outdoor WAS, including RLANs, to operate in the various bands under consideration in this Resolution,

recognizing

(a) that in the band 5 600-5 650 MHz, ground-based meteorological radars are extensively deployed and support critical national weather services, according to footnote Number 5.452;

(b) that the means to measure or calculate the aggregate pfd level at FSS satellite receivers specified in Recommendation ITU-R S.1426 are currently under study;

(c) that certain parameters contained in Recommendation ITU-R M.1454 related to the calculation of the number of RLANs tolerable by FSS satellite receivers operating in the band 5 150-5 250 MHz require further study;

(d) that the performance and interference criteria of spaceborne active sensors in the EESS (active) are given in Recommendation ITU-R SA.1166;

(e) that a mitigation technique to protect radiodetermination systems is given in Recommendation ITU-R M.1652;

(f) that an aggregate pfd level has been developed in Recommendation ITU-R S.1426 for the protection of FSS satellite receivers in the 5 150-5 250 MHz band;

(g) that Recommendation ITU-R SA.1632 identifies a suitable set of constraints for WAS, including RLANs, in order to protect the EESS (active) in the 5 250-5 350 MHz band;

(h) that Recommendation ITU-R M.1653 identifies the conditions for sharing between WAS, including RLANs, and the EESS (active) in the 5 470-5 570 MHz band;

(i) that the stations in the mobile service should also be designed to provide, on average, a near-uniform spread of the loading of the spectrum used by stations across the band or bands in use to improve sharing with satellite services;

(j) that WAS, including RLANs, provide effective broadband solutions;

(k) that there is a need for administrations to ensure that WAS, including RLANs, meet the required mitigation techniques, for example, through equipment or standards compliance procedures,

resolves

  1. that the use of these bands by the mobile service will be for the implementation of WAS, including RLANs, as described in Recommendation ITU-R M.1450;
  2. that in the band 5 150-5 250 MHz, stations in the mobile service shall be restricted to indoor use with a maximum mean e.i.r.p.12 of 200 mW and a maximum mean e.i.r.p. density of 10 mW/MHz in any 1 MHz band or equivalently 0.25 mW/25 kHz in any 25 kHz band;
  3. that administrations may monitor whether the aggregate pfd levels given in Recommendation ITU-R S.1426 13 have been, or will be exceeded in the future, in order to enable a future competent conference to take appropriate action;
  4. that in the band 5 250-5 350 MHz, stations in the mobile service shall be limited to a maximum mean e.i.r.p. of 200 mW and a maximum mean e.i.r.p. density of 10 mW/MHz in any 1 MHz band. Administrations are requested to take appropriate measures that will result in the predominant number of stations in the mobile service being operated in an indoor environment. Furthermore, stations in the mobile service that are permitted to be used either indoors or outdoors may operate up to a maximum mean e.i.r.p. of 1 W and a maximum mean e.i.r.p. density of 50 mW/MHz in any 1 MHz band, and, when operating above a mean e.i.r.p. of 200 mW, these stations shall comply with the following e.i.r.p. elevation angle mask where è is the angle above the local horizontal plane (of the Earth): 

    -13 dB(W/MHz) for 0° ≤ θ < 8°
    -13 - 0.716(θ-8) dB(W/MHz) for 8° ≤ θ < 40°
    -35.9 - 1.22(θ-40) dB(W/MHz) for 40° ≤ θ ≤ 45°
    -42 dB(W/MHz) for 45° < θ;

  5. that administrations may exercise some flexibility in adopting other mitigation techniques, provided that they develop national regulations to meet their obligations to achieve an equivalent level of protection to the EESS (active) and the SRS (active) based on their system characteristics and interference criteria as stated in Recommendation ITU-R SA.1632;
  6. that in the band 5 470-5 725 MHz, stations in the mobile service shall be restricted to a maximum transmitter power of 250 mW 14 with a maximum mean e.i.r.p. of 1 W and a maximum mean e.i.r.p. density of 50 mW/MHz in any 1 MHz band;
  7. that in the bands 5 250-5 350 MHz and 5 470-5 725 MHz, systems in the mobile service shall either employ transmitter power control to provide, on average, a mitigation factor of at least 3 dB on the maximum average output power of the systems, or, if transmitter power control is not in use, then the maximum mean e.i.r.p. shall be reduced by 3 dB;
  8. that, in the bands 5 250-5 350 MHz and 5 470-5 725 MHz, the mitigation measures found in Annex 1 to Recommendation ITU-R M.1652 shall be implemented by systems in the mobile service to ensure compatible operation with radiodetermination systems,

invites administrations

to adopt appropriate regulation if they intend to permit the operation of stations in the mobile service using the e.i.r.p. elevation angle mask in resolves 4, to ensure the equipment is operated in compliance with this mask,

invites ITU-R

  1. to continue work on regulatory mechanisms and further mitigation techniques to avoid incompatibilities which may result from aggregate interference into the FSS in the band 5 150-5 250 MHz from a possible prolific growth in the number of WAS, including RLANs;
  2. to continue studies on mitigation techniques to provide protection of EESS from stations in the mobile service,
  3. to continue studies on suitable test methods and procedures for the implementation of dynamic frequency selection, taking into account practical experience.

Footnotes

  1. back to footnote reference a Throughout this Recommendation the term "WAS" denotes "wireless access systems including RLANs".
  2. back to footnote reference b The DFS feature was specified in the 5 GHz RLAN standards initially in order to mitigate interference among uncoordinated RLAN clusters, and to provide optimized specral efficiency for high-capacity, high bit-rate data transmission.
  3. back to footnote reference c In practice, it may not be necessary for each device to implement full DFS functionally, provided that such devices are only able to transmit under the control of a device that ensures that all DFS requirements are fulfilled.
  4. back to footnote reference 12 In the context of this Resolution, "mean e.i.r.p." refers to the e.i.r.p. during the transmission burst which corresponds to the highest power, if power control is implemented.
  5. back to footnote reference 13 -124 - 20 log10(hSAT / 1 414) dB(W/(m2 · 1 MHz)), or equivalently, -140  - 20 log10(hSAT / 1 414) dB(W/(m2 · 25 kHz)), at the FSS satellite orbit, where hSAT is the altitude of the satellite (km).
  6. back to footnote reference 14 Administrations with existing regulations prior to this Conference may exercise some flexibility in determining transmitter power limits.
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