{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9648504","patent":{"patent_number":"US-9648504","title":"Using subarrays of a beamformer for transmissions in a forward link","assignee":null,"inventors":[],"filing_date":"2013-12-10T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H04W","H04B","H04B","H04B","H04B","H04B","H04W"],"num_claims":30,"abstract":"Methods, systems, and devices are described for transmitting across a broad azimuth using an antenna array. In one example, a method is described that includes forming two subarrays from an antenna array. Beamforming weights are selected for each subarray to cause the radiation patterns to be complementary over a range of the azimuth of a cell. The beamforming weights may be selected according to a recursive relation based on the number of antenna elements in each subarray. Information may be encoded, scrambled, and mapped to modulation symbols. A Space Frequency Block Code (SFBC) such as an Alamouti Code may then be used to form two signals to be transmitted over the two subarrays."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Using subarrays of a beamformer for transmissions in a forward link","description":"Methods, systems, and devices are described for transmitting across a broad azimuth using an antenna array. In one example, a method is described that includes forming two subarrays from an antenna ar","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9648504","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-9648504","citation_suggestion":"Patentable. \"Using subarrays of a beamformer for transmissions in a forward link\" (US-9648504). https://patentable.app/patents/US-9648504","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9648504","json":"https://patentable.app/api/llm-context/US-9648504","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:41:16.083Z"}