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CPC Subgroup
H04B 7/022

Site diversity; Macro-diversity (using two or more spaced independent antennas H04B7/04)

Full Title

Radio transmission systems, i.e. using radiation field (H04B10/00, H04B15/00 take precedence) > Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas (RAKE receivers H04B1/7115) > Site diversity; Macro-diversity (using two or more spaced independent antennas H04B7/04)

Filing statistics

CPC H04B 7/022 belongs to the parent subclass H04B, which recorded 474,755 patent applications worldwide between 2013 and 2023. Annual filings grew from 34,313 in 2013 to 39,995 in 2023 (+17%), peaking at 50,387 applications in 2020. The most active applicants in class H04 are HUAWEI TECHNOLOGIES COMPANY (101,476 applications), QUALCOMM (101,139 applications) and SAMSUNG ELECTRONICS COMPANY (96,655 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

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  • H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
  • H04B 7/026 Co-operative diversity, e.g. using fixed or mobile stations as relays

Top Applicants

Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. HUAWEI TECHNOLOGIES COMPANY CN 101,476
  2. QUALCOMM US 101,139
  3. SAMSUNG ELECTRONICS COMPANY KR 96,655
  4. TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
  5. LG ELECTRONICS KR 55,253
  6. HUAWEI TECHNOLOGIES COMPANY 54,181
  7. SONY CORPORATION JP 35,309
  8. ZTE CORPORATION CN 32,950
  9. INTEL CORPORATION US 27,533
  10. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498