Policy on Intellectual Property Right (IPR)
1     Introduction
2     Selection of signal distribution system
        2.1     Overview of signal distribution system consideration
                  2.1.1     Broadcast wave relay system
                  2.1.2     Microwave link
                  2.1.3     Satellite link
                  2.1.4     Optical fibre link
        2.2     Requirements for selecting relay system
                  2.2.1     Channel plan for transmitting stations
                  2.2.2     Primary assessment of constructing broadcasting network
                  2.2.3     Delay time adjustment design for SFN
        2.3     Consideration of relay system
                  2.3.1     Consideration of relay system based on delay time adjustment for SFN
                  2.3.2     Consideration of propagation characteristics of broadcast wave relay
                  2.3.3     Link budget of broadcasting network
                  2.3.4     Channel plan for microwave links
3     SFN delay time adjustment and relay system
        3.1     SFN delay time adjustment
                  3.1.1     Case where transmitting timing exceeds designed transmission delay time
                  3.1.2     Case where transmitting timing is within designed transmission delay time
                  3.1.3     Case of use of equalizer with long processing time
        3.2     Criterion for delay time adjustment
                  3.2.1     Maximum delay time adjustment method
                  3.2.2    Delay time adjustment at broadcast wave relay system
        3.3     SFN delay time adjustment
4     Quality of the broadcast wave relay
        4.1     Equivalent C/N of signals transmitted by broadcasting stations
                  4.1.1     Concept
                4.1.2     Requirements
        4.2     Base of consideration
                  4.2.1     Reason for necessary to define the requirements for the equivalent C/N of transmitted signals
                  4.2.2     Relation between equivalent C/N of transmitted signals and the percentages of households affected
                  4.2.3     Equivalent C/N of transmitted signals appropriate for each broadcasting station size
        4.3     Time percentage of broadcast wave relay
                  4.3.1     Concept
                  4.3.2     Requirements for electric field strength, received power, and others
                  4.3.3     Concept of D/U ratio to interference waves
                  4.3.4     Method to determine the D/U ratio to interference waves
                  4.3.5     How to determine the D/U ratio to multiple interference waves
        4.4     Electric field strength ratio and D/U ratio
                  4.4.1     Electric field strength ratio
                  4.4.2     DU ratio
        4.5     Time percentage of the D/U ratio for a link that undergoes interference
        4.6     Lower limit of received power
                  4.6.1     Concept
                  4.6.2     Requirements
                  4.6.3     Base of consideration
        4.7     Design of reception systems
                  4.7.1     Concept
                  4.7.2     Requirements
                  4.7.3     Base of consideration
5     Propagation characteristics of broadcast wave relaying
        5.1     Multipath interference
                  5.1.1     Concept
                  5.1.2     Requirements
                  5.1.3     Base of consideration
        5.2     Necessity for multipath equalization
        5.3     Fading
                  5.3.1     Concept
                  5.3.2     Requirements
                  5.3.3     Base of consideration
                  5.3.4     Types of propagation paths
        5.4     Co-channel Interference
                  5.4.1     Concept
                  5.4.2     Requirements
                  5.4.3     Base of consideration
        5.5     Adjacent-channel interference
                  5.5.1     Concept
                  5.5.2     Base of consideration
        5.6     SFN coupling loop interference
                  5.6.1     Concept
                  5.6.2     Requirements
                  5.6.3     Base of consideration
        5.7     Interference from the image frequency (VHF-UHF separation interference)
6     Measures against interference deterioration
        6.1     Filter-based measures against adjacent-channel interference
                  6.1.1     Concept
                  6.1.2     Requirements
                  6.1.3     Base of consideration
        6.2     Equalizer-based measures
                  6.2.1     Concept
                  6.2.2     Requirements
                  6.2.3     Base of consideration
        6.3     Cases where no coupling loop canceller is required
        6.4     Explanation of equalizers
                  6.4.1     Multipath equalizer (A)
                  6.4.2     Multipath equalizer (B)
                  6.4.3     Multipath equalizer (C)
                  6.4.4     Diversity receivers
                  6.4.5      Co-channel interference canceller
                 6.4.6     Relation between the array antenna spacing d and space correlation coefficient β
                  6.4.7     Array antenna (two antennas) spacing d and space correlation coefficient β
                  6.4.8     Desired-wave arrival angle θ_D and space correlation coefficient β
                  6.4.9     Two-antenna array spacing d and space correlation coefficient β (details)
                  6.4.10     Coupling loop canceller
        6.5     Design of equalizers and reception systems
                  6.5.1     Design of space diversity
                  6.5.2     Design of reception antennas for co-channel interference canceller
                               6.5.2.3     Base of consideration
        6.6     Coupling loops of self-transmitted waves and design of reception antennas
                  6.6.1     Concept
                  6.6.2     Estimated coupling loops of self-transmitted waves in unseparated reception
                  6.6.3     Consideration of the combined amount

CONTENTS