Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2231293615', 'doi': 'https://doi.org/10.1007/1-4020-5532-3_7', 'title': 'Evolved Utra Technologies', 'display_name': 'Evolved Utra Technologies', 'publication_year': 2007, 'publication_date': '2007-04-30', 'ids': {'openalex': 'https://openalex.org/W2231293615', 'doi': 'https://doi.org/10.1007/1-4020-5532-3_7', 'mag': '2231293615'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/1-4020-5532-3_7', 'pdf_url': 'https://link.springer.com/content/pdf/10.1007%2F1-4020-5532-3_7.pdf', 'source': {'id': 'https://openalex.org/S4306463937', 'display_name': 'Springer eBooks', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'ebook platform'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'book-chapter', 'type_crossref': 'book-chapter', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5066811243', 'display_name': 'Mamoru Sawahashi', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I98083888', 'display_name': 'Musashi University', 'ror': 'https://ror.org/05qp61e83', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I98083888']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Mamoru Sawahashi', 'raw_affiliation_strings': ['Musashi Institute of Technology, Japan'], 'affiliations': [{'raw_affiliation_string': 'Musashi Institute of Technology, Japan', 'institution_ids': ['https://openalex.org/I98083888']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5027554749', 'display_name': 'Erik Dahlman', 'orcid': 'https://orcid.org/0000-0003-0057-4410'}, 'institutions': [{'id': 'https://openalex.org/I1306339040', 'display_name': 'Ericsson (Sweden)', 'ror': 'https://ror.org/05a7rhx54', 'country_code': 'SE', 'type': 'company', 'lineage': ['https://openalex.org/I1306339040']}], 'countries': ['SE'], 'is_corresponding': False, 'raw_author_name': 'Erik Dahlman', 'raw_affiliation_strings': ['Ericsson AB, Sweden'], 'affiliations': [{'raw_affiliation_string': 'Ericsson AB, Sweden', 'institution_ids': ['https://openalex.org/I1306339040']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5101939730', 'display_name': 'Kenichi Higuchi', 'orcid': 'https://orcid.org/0009-0002-6299-8964'}, 'institutions': [], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Kenichi Higuchi', 'raw_affiliation_strings': ['NTT DoCoMo, Japan'], 'affiliations': [{'raw_affiliation_string': 'NTT DoCoMo, Japan', 'institution_ids': []}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 4, 'citation_normalized_percentile': {'value': 0.586439, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 76, 'max': 78}, 'biblio': {'volume': None, 'issue': None, 'first_page': '217', 'last_page': '276'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10148', 'display_name': 'Advanced MIMO Systems Optimization', 'score': 0.9995, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10148', 'display_name': 'Advanced MIMO Systems Optimization', 'score': 0.9995, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11409', 'display_name': 'Advanced Wireless Network Optimization', 'score': 0.9995, 'subfield': {'id': 'https://openalex.org/subfields/2208', 'display_name': 'Electrical and Electronic Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10796', 'display_name': 'Cooperative Communication and Network Coding', 'score': 0.9956, 'subfield': {'id': 'https://openalex.org/subfields/1705', 'display_name': 'Computer Networks and Communications'}, 'field': {'id': 'https://openalex.org/fields/17', 'display_name': 'Computer Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/umts-frequency-bands', 'display_name': 'UMTS frequency bands', 'score': 0.9400909}], 'concepts': [{'id': 'https://openalex.org/C31304418', 'wikidata': 'https://www.wikidata.org/wiki/Q283455', 'display_name': 'UMTS Terrestrial Radio Access Network', 'level': 5, 'score': 0.94181114}, {'id': 'https://openalex.org/C101618186', 'wikidata': 'https://www.wikidata.org/wiki/Q3633928', 'display_name': 'UMTS frequency bands', 'level': 2, 'score': 0.9400909}, {'id': 'https://openalex.org/C76155785', 'wikidata': 'https://www.wikidata.org/wiki/Q418', 'display_name': 'Telecommunications', 'level': 1, 'score': 0.54096794}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.5376687}, {'id': 'https://openalex.org/C31258907', 'wikidata': 'https://www.wikidata.org/wiki/Q1301371', 'display_name': 'Computer network', 'level': 1, 'score': 0.5355276}, {'id': 'https://openalex.org/C124505010', 'wikidata': 'https://www.wikidata.org/wiki/Q1146276', 'display_name': 'Customised Applications for Mobile networks Enhanced Logic', 'level': 5, 'score': 0.49877906}, {'id': 'https://openalex.org/C95491727', 'wikidata': 'https://www.wikidata.org/wiki/Q992968', 'display_name': 'Mobile telephony', 'level': 3, 'score': 0.43065542}, {'id': 'https://openalex.org/C106365562', 'wikidata': 'https://www.wikidata.org/wiki/Q3078360', 'display_name': 'Radio access network', 'level': 4, 'score': 0.31275567}, {'id': 'https://openalex.org/C2781307350', 'wikidata': 'https://www.wikidata.org/wiki/Q6887221', 'display_name': 'Mobile radio', 'level': 2, 'score': 0.17368847}, {'id': 'https://openalex.org/C68649174', 'wikidata': 'https://www.wikidata.org/wiki/Q1379116', 'display_name': 'Base station', 'level': 2, 'score': 0.17293942}, {'id': 'https://openalex.org/C207029474', 'wikidata': 'https://www.wikidata.org/wiki/Q384018', 'display_name': 'Mobile station', 'level': 3, 'score': 0.071836114}, {'id': 'https://openalex.org/C205789325', 'wikidata': 'https://www.wikidata.org/wiki/Q15811187', 'display_name': 'GSM services', 'level': 4, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/1-4020-5532-3_7', 'pdf_url': 'https://link.springer.com/content/pdf/10.1007%2F1-4020-5532-3_7.pdf', 'source': {'id': 'https://openalex.org/S4306463937', 'display_name': 'Springer eBooks', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'ebook platform'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 17, 'referenced_works': ['https://openalex.org/W1532966525', 'https://openalex.org/W1535210521', 'https://openalex.org/W1537712253', 'https://openalex.org/W1570662062', 'https://openalex.org/W2001501142', 'https://openalex.org/W2011447314', 'https://openalex.org/W2031227979', 'https://openalex.org/W2090824681', 'https://openalex.org/W2131866232', 'https://openalex.org/W2138706041', 'https://openalex.org/W2144668859', 'https://openalex.org/W2150230628', 'https://openalex.org/W2170390609', 'https://openalex.org/W2903460038', 'https://openalex.org/W2948730120', 'https://openalex.org/W3137331900', 'https://openalex.org/W3188818167'], 'related_works': ['https://openalex.org/W4236592322', 'https://openalex.org/W2479143149', 'https://openalex.org/W2153699550', 'https://openalex.org/W2151136428', 'https://openalex.org/W2144334420', 'https://openalex.org/W1978462898', 'https://openalex.org/W1949164028', 'https://openalex.org/W1929980166', 'https://openalex.org/W1908492833', 'https://openalex.org/W1560338275'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2231293615', 'counts_by_year': [{'year': 2013, 'cited_by_count': 4}], 'updated_date': '2024-12-17T09:16:02.946672', 'created_date': '2016-06-24'}