{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9660748","patent":{"patent_number":"US-9660748","title":"Algorithm for physical cell identifier allocation","assignee":null,"inventors":[],"filing_date":"2012-12-04T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H04J","H04J","H04W","H04W","H04W","H04W","H04W"],"num_claims":20,"abstract":"Methods, apparatus, and computer programs for automatically allocating physical layer cell identifiers A modulo 3 grouping and a modulo 30 grouping are provided for physical layer cell identifiers in a cellular communication system. The modulo 3 grouping is associated with first synchronization signal assignments and the modulo 30 grouping is associated with second synchronization signal assignments. A combination of first and second synchronization signals determines a physical layer cell identifier of a cell. A modulo 3 group is allocated to each of multiple cells of the system. After the allocation of the modulo 3 groups, a modulo 30 group is allocated to each of the multiple cells. The allocation of the modulo 30 groups incorporates the allocated modulo 3 group as a precondition for the modulo 30 grouping. To each cell, first and second synchronization signals are allocated on the basis of said allocation of the modulo 30 group."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Algorithm for physical cell identifier allocation","description":"Methods, apparatus, and computer programs for automatically allocating physical layer cell identifiers A modulo 3 grouping and a modulo 30 grouping are provided for physical layer cell identifiers in ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9660748","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9660748","citation_suggestion":"Patentable. \"Algorithm for physical cell identifier allocation\" (US-9660748). https://patentable.app/patents/US-9660748","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9660748","json":"https://patentable.app/api/llm-context/US-9660748","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:29:05.518Z"}