{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9698888","patent":{"patent_number":"US-9698888","title":"Method and apparatus for performing effective feedback in wireless communication system supporting multiple antennas","assignee":null,"inventors":[],"filing_date":"2016-05-23T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B","H04B","H04B","H04L","H04L","H04L","H04L","H04L","H04L","H04W","H04W","H04B","H04B"],"num_claims":14,"abstract":"A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIs, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for performing effective feedback in wireless communication system supporting multiple antennas","description":"A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9698888","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-9698888","citation_suggestion":"Patentable. \"Method and apparatus for performing effective feedback in wireless communication system supporting multiple antennas\" (US-9698888). https://patentable.app/patents/US-9698888","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9698888","json":"https://patentable.app/api/llm-context/US-9698888","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:00:19.030Z"}