RELAY STATION AND RADIO COMMUNICATION DEVICE
PROBLEM TO BE SOLVED: To provide a relay station that can reduce timing deviation with a base station at a time of hold-over control and quickly resume communication with the base station.SOLUTION: A relay station 100 for performing frame synchronization with a base station 102 by air synchronizatio...
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| description | PROBLEM TO BE SOLVED: To provide a relay station that can reduce timing deviation with a base station at a time of hold-over control and quickly resume communication with the base station.SOLUTION: A relay station 100 for performing frame synchronization with a base station 102 by air synchronization comprises a crystal oscillator 130, a speed control unit 132 for applying control voltage to adjust the speed of the crystal oscillator, and a storage unit 136 for storing the control voltage. The speed control unit 132 stores in the storage unit 136 control voltage when radio wave quality with the base station 102 is exceeding a prescribed reference during air synchronization with the base station 102, and controls the crystal oscillator by using the stored control voltage during hold-over.SELECTED DRAWING: Figure 1
【課題】ホールドオーバー制御時における基地局とのタイミングずれを低減し、基地局との通信を迅速に再開することが可能な中継局を提供する。【解決手段】エア同期によって基地局１０２とのフレーム同期を行う中継局１００であって、水晶発振器１３０と、水晶発振器の速度を調整する制御電圧を加える速度制御部１３２と、制御電圧を記憶する記憶部１３６とを備える。速度制御部１３２は、基地局１０２とエア同期をしている時に基地局１０２との電波品質が所定の基準を超えているときの制御電圧を記憶部１３６に記憶し、ホールドオーバー時には、記憶した制御電圧を用いて水晶発振器を制御することを特徴とする。【選択図】図１ |
| format | Patent |
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【課題】ホールドオーバー制御時における基地局とのタイミングずれを低減し、基地局との通信を迅速に再開することが可能な中継局を提供する。【解決手段】エア同期によって基地局１０２とのフレーム同期を行う中継局１００であって、水晶発振器１３０と、水晶発振器の速度を調整する制御電圧を加える速度制御部１３２と、制御電圧を記憶する記憶部１３６とを備える。速度制御部１３２は、基地局１０２とエア同期をしている時に基地局１０２との電波品質が所定の基準を超えているときの制御電圧を記憶部１３６に記憶し、ホールドオーバー時には、記憶した制御電圧を用いて水晶発振器を制御することを特徴とする。【選択図】図１</description><language>eng ; jpn</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; TRANSMISSION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION ; WIRELESS COMMUNICATIONS NETWORKS</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170601&DB=EPODOC&CC=JP&NR=2017098629A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170601&DB=EPODOC&CC=JP&NR=2017098629A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YONEYAMA TORU</creatorcontrib><title>RELAY STATION AND RADIO COMMUNICATION DEVICE</title><description>PROBLEM TO BE SOLVED: To provide a relay station that can reduce timing deviation with a base station at a time of hold-over control and quickly resume communication with the base station.SOLUTION: A relay station 100 for performing frame synchronization with a base station 102 by air synchronization comprises a crystal oscillator 130, a speed control unit 132 for applying control voltage to adjust the speed of the crystal oscillator, and a storage unit 136 for storing the control voltage. The speed control unit 132 stores in the storage unit 136 control voltage when radio wave quality with the base station 102 is exceeding a prescribed reference during air synchronization with the base station 102, and controls the crystal oscillator by using the stored control voltage during hold-over.SELECTED DRAWING: Figure 1
【課題】ホールドオーバー制御時における基地局とのタイミングずれを低減し、基地局との通信を迅速に再開することが可能な中継局を提供する。【解決手段】エア同期によって基地局１０２とのフレーム同期を行う中継局１００であって、水晶発振器１３０と、水晶発振器の速度を調整する制御電圧を加える速度制御部１３２と、制御電圧を記憶する記憶部１３６とを備える。速度制御部１３２は、基地局１０２とエア同期をしている時に基地局１０２との電波品質が所定の基準を超えているときの制御電圧を記憶部１３６に記憶し、ホールドオーバー時には、記憶した制御電圧を用いて水晶発振器を制御することを特徴とする。【選択図】図１</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>TRANSMISSION</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><subject>WIRELESS COMMUNICATIONS NETWORKS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAJcvVxjFQIDnEM8fT3U3D0c1EIcnTx9Fdw9vf1DfXzdIaIu7iGeTq78jCwpiXmFKfyQmluBiU31xBnD93Ugvz41OKCxOTUvNSSeK8AIwNDcwNLCzMjS0djohQBANxHJaY</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>YONEYAMA TORU</creator><scope>EVB</scope></search><sort><creationdate>20170601</creationdate><title>RELAY STATION AND RADIO COMMUNICATION DEVICE</title><author>YONEYAMA TORU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2017098629A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2017</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>TRANSMISSION</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><topic>WIRELESS COMMUNICATIONS NETWORKS</topic><toplevel>online_resources</toplevel><creatorcontrib>YONEYAMA TORU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YONEYAMA TORU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>RELAY STATION AND RADIO COMMUNICATION DEVICE</title><date>2017-06-01</date><risdate>2017</risdate><abstract>PROBLEM TO BE SOLVED: To provide a relay station that can reduce timing deviation with a base station at a time of hold-over control and quickly resume communication with the base station.SOLUTION: A relay station 100 for performing frame synchronization with a base station 102 by air synchronization comprises a crystal oscillator 130, a speed control unit 132 for applying control voltage to adjust the speed of the crystal oscillator, and a storage unit 136 for storing the control voltage. The speed control unit 132 stores in the storage unit 136 control voltage when radio wave quality with the base station 102 is exceeding a prescribed reference during air synchronization with the base station 102, and controls the crystal oscillator by using the stored control voltage during hold-over.SELECTED DRAWING: Figure 1
【課題】ホールドオーバー制御時における基地局とのタイミングずれを低減し、基地局との通信を迅速に再開することが可能な中継局を提供する。【解決手段】エア同期によって基地局１０２とのフレーム同期を行う中継局１００であって、水晶発振器１３０と、水晶発振器の速度を調整する制御電圧を加える速度制御部１３２と、制御電圧を記憶する記憶部１３６とを備える。速度制御部１３２は、基地局１０２とエア同期をしている時に基地局１０２との電波品質が所定の基準を超えているときの制御電圧を記憶部１３６に記憶し、ホールドオーバー時には、記憶した制御電圧を用いて水晶発振器を制御することを特徴とする。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS |
| title | RELAY STATION AND RADIO COMMUNICATION DEVICE |
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