WORLD INTELLECTUAL PROPERTY ORGANIZATION
IPC REVISION WORKING GROUP
Project: A027 Subclass: H04B, H04J
May 2009
Renumbering of scheme
The scheme below is based on the Rapporteur proposal of Annex 6, renumbered in order to
comply with the IPC numbering rules.
H04J
CL M
13/00
Code division multiplex systems (for frequency hopping
H04B1/713, for multi-carrier CDMA H04J11/00, spread
spectrum techniques H04B1/69)
CL N
13/01>
• Code generation
/012
AL N
13/011>
•
• Generation of orthogonal codes
•
• Generation of codes with a zero correlation zone
/0122
AL N
13/013>
/0124
CL N
13/014>
• Code allocation
/014
AL N
13/016>
•
• Allocation of orthogonal codes
•
•
•
• Allocation of codes with a zero correlation zone
/0142
13/017>
/01421
AL N
13/019>
• having an orthogonal variable spreading factor
[OVSF]
/0144
AL D
/02
• using spread spectrum techniques
AL D
/04
•
• using direct sequence modulation
AL D
/06
•
• using frequency hopping
H04B
•
Spread spectrum techniques (code division multiplex
systems H04J 13/00)
CL M
1/69
CL N
1/70>/69 • • Hybrid techniques using combinations of two or more
2
spread spectrum techniques
CL
/707
• • using direct sequence modulation
AL N
1/7073
>/709
• • • Synchronization aspects
AL N
1/7075
/7091
• • • • with code phase acquisition
AL N
1/7077>
/7095
• • • • • Multi-step acquisition, e.g. multi-dwell, coarsefine or validation
1/708
/7096
• • • • • Parallel implementation
AL N
1/7083>
/7093
• • • • Cell search, e.g. using a three-step approach
AL N
1/7085>
/7097
• • • • using a code tracking loop, e.g. a delay-locked
loop
AL N
1/7087>
/7099
• • • • Carrier synchronization aspects (for carrier
synchronization per se see H04L7/06)
AL N
1/709>
/710
• • • Correlator structure
AL N
1/7093>
/7103
• • • • Matched filter type
AL N
1/7095>
/7107
• • • • Sliding correlator type
AL N
1/7097>
/711
• • • Interference-related aspects
AL N
1/710>
/7112
• • • • the interference being narrowband interference
AL N
1/7103>
/7115
• • • • the interference being multiple access
interference
AL N
1/7105>
/71153
• • • • • Joint detection techniques, e.g. linear
detectors
AL N
1/7107>
/71157
• • • • • Subtractive interference cancellation
N
1/711>
/7118
• • • • the interference being multi-path interference
1/7113>
/71181
• • • • • Determination of path profile
1/7115>
/71182
• • • • • Constructive combining of multi-paths, i.e.
RAKE receivers
AL N
1/7117>
/711821
• • • • • • Selection, re-selection, allocation and reallocation of paths to fingers, e.g. timing offset
control of allocated fingers
AL N
/711821
1
• • • • • • • fat finger aspects (i.e. dealing with paths
which have small or negligible timing
difference)
AL N
1/712>
/711823
• • • • • • Weighting of fingers for combining, e.g.
amplitude control or phase rotation using an
inner loop
CL
/713
• • using frequency hopping
AL N
1/7136>
/7131
• • • Arrangements for generation of hop frequencies,
e.g. using a bank of frequency sources, using
continuous tuning or using a transform
AL N
1/7143>
/7133
• • • Arrangements for generation of hop patterns
AL N
1/715>
/7135
• • • Interference-related aspects
AL N
1/7156>
/7137
• • • Arrangements for sequence synchronization
AL N
1/7163>
/714
• • using impulse radio
AL N
1/717>
/7142
• • • Pulse-related aspects
AL N
1/7176>
/7144
• • • Data mapping, i.e. modulation
AL N
1/7183>
/7146
• • • Synchronization
AL N
1/719>
/7148
• • • Interference-related aspects
AL N