{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520625","patent":{"patent_number":"US-8520625","title":"Transmit antenna subset selection for retransmission","assignee":null,"inventors":[],"filing_date":"2010-05-27T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04L","H04L","H04L"],"num_claims":26,"abstract":"A transmit switched antenna system utilizes one of several antennas selection protocols combined with feedback from a receiving device to take advantage of time and space transmission for the same information. A transmit device transmits first information over a first subset of a set of antennas and receives an ACK or NACK from the receiver along with a channel quality indicator. If a NACK is received, the transmitter selects a next antenna subset for transmission, based on the antenna selection protocol utilized. One protocol randomly selects the next subset and does not require the channel quality indicator. Another protocol determines the next antenna subset based on channel quality history, and a third protocol selects the next antenna subset based on expectation of retransmissions for different protocols."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Transmit antenna subset selection for retransmission","description":"A transmit switched antenna system utilizes one of several antennas selection protocols combined with feedback from a receiving device to take advantage of time and space transmission for the same inf","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520625","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-8520625","citation_suggestion":"Patentable. \"Transmit antenna subset selection for retransmission\" (US-8520625). https://patentable.app/patents/US-8520625","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520625","json":"https://patentable.app/api/llm-context/US-8520625","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:13:53.309Z"}