{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9844009","patent":{"patent_number":"US-9844009","title":"Power headroom report in a wireless device with carrier aggregation","assignee":null,"inventors":[],"filing_date":"2017-03-27T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["H04W","H04L","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":20,"abstract":"A wireless device transmits a power headroom report media access control control element (PHR MAC CE). The PHR MAC CE comprises a presence field comprising a plurality of presence bits. The presence field is of a fixed size of one octet when up to seven of the one or more secondary cells are each configured with a cell index having a value between one and seven. The presence field is of a fixed size of four octets when the one or more secondary cells comprise more than seven secondary cells with configured uplinks."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power headroom report in a wireless device with carrier aggregation","description":"A wireless device transmits a power headroom report media access control control element (PHR MAC CE). The PHR MAC CE comprises a presence field comprising a plurality of presence bits. The presence f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9844009","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-9844009","citation_suggestion":"Patentable. \"Power headroom report in a wireless device with carrier aggregation\" (US-9844009). https://patentable.app/patents/US-9844009","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9844009","json":"https://patentable.app/api/llm-context/US-9844009","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:19:49.540Z"}