WO2010050504A1 - 移動通信システム - Google Patents
移動通信システム Download PDFInfo
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- WO2010050504A1 WO2010050504A1 PCT/JP2009/068494 JP2009068494W WO2010050504A1 WO 2010050504 A1 WO2010050504 A1 WO 2010050504A1 JP 2009068494 W JP2009068494 W JP 2009068494W WO 2010050504 A1 WO2010050504 A1 WO 2010050504A1
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- communication system
- frequency bandwidth
- mobile communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/20—Negotiating bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Definitions
- the present invention relates to a mobile communication system in which a first mobile station having a first capability and a second mobile station having a second capability can coexist.
- a radio base station eNB sets a parameter “dl-Bandwidth” in an MIB (Master Information Block) that configures broadcast information for subordinate cells. ”Is configured to notify the frequency bandwidth used in the downlink of such a mobile communication system.
- the radio base station eNB uses the parameter “ul-Bandwidth” in SIB2 (System Information Block Type 2) that configures broadcast information to the subordinate cell, and the uplink of the mobile communication system Is configured to notify the frequency bandwidth used.
- SIB2 System Information Block Type 2
- the frequency bandwidth used in the next generation LTE mobile communication system may be larger than the frequency band used in the current generation LTE mobile communication system.
- different frequency bandwidths that are not defined in the current generation LTE mobile communication system may be defined based on the frequency allocation situation in each country.
- the mobile station UE that supports the current generation LTE scheme but does not support the next generation LTE scheme sets the parameters “dl-Bandwidth” and “ul-Bandwidth” to “spare1” and “ When “spare2” is set, the frequency bandwidth used in the uplink or the downlink of the next generation LTE mobile communication system cannot be grasped, so the next generation LTE mobile communication system
- the present invention has been made in view of the above-described problems, and an object thereof is to provide a mobile communication system capable of realizing the above-mentioned “Forward Compatibility”.
- a first feature of the present invention is a mobile communication system in which a first mobile station having a first capability and a second mobile station having a second capability can coexist, wherein a radio base station When it is configured to transmit broadcast information including a parameter for setting a frequency bandwidth used in the mobile communication system, and when a predetermined value is set for the parameter included in the received broadcast information, The first mobile station is configured to determine that the first frequency bandwidth is a frequency bandwidth used in the mobile communication system, and the predetermined parameter is included in the parameter included in the received broadcast information. When a value is set, the second mobile station uses a second frequency bandwidth different from the first frequency bandwidth as a frequency bandwidth used in the mobile communication system. It is summarized as configured to determine that that.
- the parameter is configured such that a frequency bandwidth used in a downlink of the mobile communication system is set, and the parameter is an MIB that configures the broadcast information. (Master Information Block) may be included.
- the parameter is configured such that a frequency bandwidth used in an uplink of the mobile communication system is set, and the parameter is an SIB configuring the broadcast information. (System Information Block) may be included.
- SIB System Information Block
- the predetermined value includes a first predetermined value and a second predetermined value
- the second mobile station has the first predetermined value in the parameter included in the received broadcast information.
- the second frequency bandwidth configured by an even number of resource blocks is determined to be a frequency bandwidth used in the mobile communication system;
- Two mobile stations when the second predetermined value is set in the parameter included in the received broadcast information, the mobile station uses the second frequency bandwidth configured by an odd number of resource blocks as the mobile communication
- the frequency bandwidth used in the system may be determined to be determined.
- FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
- FIG. 2 is a diagram illustrating an example of broadcast information (MIB) transmitted by the radio base station according to the first embodiment of the present invention.
- FIG. 3 is a diagram illustrating an example of broadcast information (SIB2) transmitted by the radio base station according to the first embodiment of the present invention.
- FIG. 4 is a functional block diagram of the mobile station according to the first embodiment of the present invention.
- FIG. 5 is a diagram illustrating an example of a relationship between “parameter” and “system bandwidth” managed by the mobile station according to the first embodiment of the present invention.
- FIG. 6 is a diagram illustrating an example of a system bandwidth that can be used in the mobile station according to the first embodiment of the present invention.
- the mobile communication system is a next generation LTE mobile communication system, for example, an LTE (Release. 9) mobile communication system or an LTE-Advanced mobile communication system. It may also be a mobile communication system of the current generation LTE scheme, for example, LTE (Release. 8) scheme.
- the mobile communication system includes a radio base station eNB, a mobile station UE # 1, and a mobile station UE # 2.
- the mobile station UE # 1 is a first mobile station having a first capability compatible with the next-generation LTE scheme
- the mobile station UE # 2 is a current-generation LTE scheme, for example, LTE (Release).
- a second mobile station having a second capability compatible with the scheme not compatible with the next generation LTE scheme).
- the radio base station eNB is configured to transmit broadcast information (MIB) including the parameter “dl-Bandwidth” as shown in FIG. 2 in the subordinate cell # 1, and as shown in FIG.
- the broadcast information (SIB2) including the parameter “ul-Bandwidth” is configured to be transmitted.
- the parameter “dl-Bandwidth” is configured such that the frequency bandwidth used in the downlink of the mobile communication system is set.
- the parameter “dl-Bandwidth” includes “n6”, “n15”, “n25”, “n50”, “n75”, “n100”, “spar1”, and “spare2” can be set.
- the parameter “ul-Bandwidth” is configured to set the frequency bandwidth used in the uplink of the mobile communication system.
- the parameter “ul-Bandwidth” includes “n6”, “n15”, “n25”, “n50”, “n75”, “n100”, “spar1”, and “spare2” can be set.
- n6”, “n15”, “n25”, “n50”, “n75”, and “n100” are the frequency bandwidth used in the downlink or uplink, and the resources constituting the frequency bandwidth. Indicates the number of blocks.
- n6 indicates that the frequency bandwidth is “1.4 MHz” and the number of resource blocks is “6”
- n15 indicates that the frequency bandwidth is “3 MHz”.
- the resource block number is “15”
- n25 indicates that the frequency bandwidth is “5 MHz”
- the resource block number is “25”
- n50 Indicates that the frequency bandwidth is “10 MHz” and the number of resource blocks is “50”
- n75 indicates that the frequency bandwidth is “15 MHz” and the number of resource blocks is “75”.
- N100 indicates that the frequency bandwidth is “20 MHz” and the number of resource blocks is “100”.
- the radio base station eNB of the next generation LTE scheme can set the frequency bandwidth used in the uplink or downlink of the mobile communication system for “spare1” and “spare2”. It is configured.
- the current generation LTE radio base station eNB is configured not to be able to set the frequency bandwidth used in the uplink or downlink of the mobile communication system for “spare1” and “spare2”. Has been.
- the mobile station UE includes a broadcast information receiving unit 11, an analysis unit 12, and a communication unit 13.
- the broadcast information receiving unit 11 is configured to receive broadcast information transmitted by the radio base station eNB. Specifically, the broadcast information receiving unit 11 is configured to receive MIB, SIB1, SIB2, and the like constituting the broadcast information.
- the analysis unit 12 detects the frequency bandwidth used in the downlink of the mobile communication system by analyzing the parameter “dl-Bandwidth” included in the broadcast information (MIB) received by the broadcast information reception unit 11 Is configured to do.
- the analysis unit 12 analyzes the parameter “ul-Bandwidth” included in the broadcast information (SIB2) received by the broadcast information reception unit 11 to thereby use the frequency bandwidth used in the uplink of the mobile communication system. Is configured to detect.
- the analysis unit 12 of the mobile station UE # 2 is used in the mobile communication system when “spare1” and “spare2” are set in the parameter “dl-Bandwidth” or “ul-Bandwidth”. It may be configured to determine that the frequency bandwidth is not set to the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the analysis unit 12 of the mobile station UE # 2 refers to the table shown in FIG. 5A, and when the parameter “dl-Bandwidth” or “ul-Bandwidth” is set to “n6”, “1.4 MHz” corresponding to “n6” is determined to be a frequency bandwidth used in the downlink or uplink of the mobile communication system.
- the analysis unit 12 of the mobile station UE # 1 refers to the table shown in FIG. 5B, and when “n6” is set in the parameter “dl-Bandwidth” or “ul-Bandwidth”. , “1.4 MHz” corresponding to “n6” is determined to be a frequency bandwidth used in the downlink or uplink of the mobile communication system.
- the analysis unit 12 of the mobile station UE # 2 and the analysis unit 12 of the mobile station UE # 1 are configured when “n6” to “n100” are set in the parameter “dl-Bandwidth” or “ul-Bandwidth”. Are configured to determine that the frequency bandwidth corresponding to “n6” to “n100” is the frequency bandwidth used in the downlink or uplink of the mobile communication system.
- the analysis unit 12 of the mobile station UE # 2 refers to the table shown in FIG. 5A and sets “spare1 (predetermined value)” in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the “20 MHz (second frequency bandwidth)” corresponding to “n100” is determined to be the frequency bandwidth used in the downlink or uplink of the mobile communication system. .
- the analysis unit 12 of the mobile station UE # 2 refers to the table shown in FIG. 5A and sets “spare2 (predetermined value)” in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the “15 MHz (second frequency bandwidth)” corresponding to “n75” is determined to be the frequency bandwidth used in the downlink or uplink of the mobile communication system. .
- the analysis unit 12 of the mobile station UE # 1 refers to the table shown in FIG. 5B and sets “spare1 (predetermined value)” in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- “40 MHz (first frequency bandwidth)” corresponding to “n200” is determined to be a frequency bandwidth used in the downlink or uplink of the mobile communication system. Has been.
- the analysis unit 12 of the mobile station UE # 1 refers to the table shown in FIG. 5 (b), and the parameter “dl-Bandwidth” or “ul-Bandwidth” is set to “spare2 (predetermined value)”.
- the “25 MHz (first frequency bandwidth)” corresponding to “n125” is determined to be the frequency bandwidth used in the downlink or uplink of the mobile communication system. .
- the analysis unit 12 of the mobile station UE # 2 and the analysis unit 12 of the mobile station UE # 1 have “spare1” and “spare2” set in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- each is configured to determine a different frequency bandwidth as a frequency bandwidth used in the downlink or uplink of the mobile communication system.
- the analysis unit 12 of the mobile station UE # 2 is configured by an even number of resource blocks when “spare1 (first predetermined value)” is set in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the second frequency bandwidth being used eg, “20 MHz” corresponding to “n100” is determined to be the frequency bandwidth used in the downlink or uplink of the mobile communication system. Also good.
- the analysis unit 12 of the mobile station UE # 2 is configured with an odd number of resource blocks when “spare2 (second predetermined value)” is set in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the second frequency bandwidth (for example, “15 MHz” corresponding to “n75”) is determined to be a frequency bandwidth used in the downlink or uplink of the mobile communication system. Also good.
- the parameter “dl-Bandwidth” or “ul-Bandwidth” is set to “spare1”, and an odd number
- the parameter “dl-Bandwidth” or “ul-Bandwidth” is set to “spare2”. Both the case where the frequency bandwidth configured by the even number of resource blocks is expanded and the case where the frequency bandwidth configured by the odd number of resource blocks are expanded can be dealt with.
- the synchronization channel (SCH) used for cell search and the broadcast channel (BCH) for transmitting broadcast information MIB are the 6 resources at the center of the frequency bandwidth used in the mobile communication system. It is transmitted with a frequency bandwidth corresponding to the block.
- the physical channel (SCH and BCH) of the resource channel is included in the resource block. Symbol arrangement is different.
- the analysis unit 12 of the mobile station UE # 2 receives the above-described channel (SCH / BCH or the like) when “spare1” is set and when “spare2” is set. It is desirable that the methods be configured differently.
- the analysis unit 12 of the mobile station UE # 2 refers to the table shown in FIG. 5A and sets “spare1” and “spare2” in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the frequency bandwidths may be determined to be the frequency bandwidths used in the downlink or uplink of the mobile communication system.
- the analysis unit 12 of the mobile station UE # 2 refers to the table shown in FIG. 5A and sets “spare1” and “spare2” in the parameter “dl-Bandwidth” or “ul-Bandwidth”.
- the mobile communication system may be determined to be unusable.
- the analysis unit 12 of the mobile station UE # 1 receives the parameter “Extended Bandwidth” other than the parameter “dl-Bandwidth” or “ul-Bandwidth” from the broadcast information, and the “dl-Bandwidth” and “ul-Bandwidth”.
- ”And / or“ Extended Bandwidth ” may be configured to determine the frequency bandwidth used in the downlink or uplink of the mobile communication system.
- the communication unit 13 uses a downlink channel such as a dedicated downlink shared channel PDSCH (Physical Downlink Shared Channel) or a dedicated downlink control channel PDCCH (Physical Downlink Control Channel) within the frequency bandwidth determined by the analysis unit 12. A predetermined signal is received.
- a dedicated downlink shared channel PDSCH Physical Downlink Shared Channel
- PDCCH Physical Downlink Control Channel
- the communication unit 13 uses the dedicated uplink shared channel PUSCH (Physical Uplink Shared Channel), the dedicated uplink control channel PUCCH (Physical Uplink Control Channel), and the physical random access channel within the frequency bandwidth determined by the analysis unit 12. It is configured to transmit a predetermined signal via an uplink channel such as PRACH (Physical Random Access Channel).
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- PRACH Physical Random Access Channel
- the communication unit 13 of the mobile station UE # 1 is configured to receive a predetermined signal via a downlink channel and transmit a predetermined signal via an uplink channel within 40 MHz. Yes.
- the communication unit 13 of the mobile station UE # 2 is configured to receive a predetermined signal via the downlink channel and transmit the predetermined signal via the uplink channel within 20 MHz. Yes.
- the mobile station UE # 2 that supports the current generation LTE scheme and does not support the next generation LTE mobile communication system has parameters Even when “spare1” and “spare2” are set in “dl-Bandwidth” or “ul-Bandwidth”, a predetermined frequency band is used in the downlink or uplink of the mobile communication system. Since it is configured to determine the frequency bandwidth, the mobile station UE can be used in the next generation LTE mobile communication system.
- the operations of the mobile station UE and the radio base station eNB described above may be implemented by hardware, may be implemented by a software module executed by a processor, or may be implemented by a combination of both. .
- Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.
- the storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Further, such a storage medium and a processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE or the radio base station eNB. Further, the storage medium and the processor may be provided as a discrete component in the mobile station UE or the radio base station eNB.
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Abstract
Description
図1乃至図6を参照して、本発明の第1の実施形態に係る移動通信システムの構成について説明する。
いる。
本発明の第1の実施形態に係る移動通信システムによれば、現世代のLTE方式に対応しており、次世代のLTE方式の移動通信システムに対応していない移動局UE#2が、パラメータ「dl-Bandwidth」又は「ul-Bandwidth」に「spare1」及び「spare2」が設定されている場合であっても、所定の周波数帯域を、かかる移動通信システムの下りリンク又は上りリンクにおいて使用される周波数帯域幅であると判断するように構成されているため、次世代のLTE方式の移動通信システムにおいて、かかる移動局UEを使用することができる。
Claims (4)
- 第1能力を具備する第1移動局及び第2能力を具備する第2移動局が混在することが可能な移動通信システムであって、
無線基地局が、前記移動通信システムにおいて使用される周波数帯域幅が設定されるパラメータを含む報知情報を送信するように構成されており、
受信した前記報知情報に含まれる前記パラメータに所定値が設定されている場合に、前記第1移動局は、第1周波数帯域幅を、前記移動通信システムにおいて使用される周波数帯域幅であると判断するように構成されており、
受信した前記報知情報に含まれる前記パラメータに前記所定値が設定されている場合に、前記第2移動局は、前記第1周波数帯域幅とは異なる第2周波数帯域幅を、前記移動通信システムにおいて使用される周波数帯域幅であると判断するように構成されていることを特徴とする移動通信システム。 - 前記パラメータには、前記移動通信システムの下りリンクにおいて使用される周波数帯域幅が設定されるように構成されており、
前記パラメータは、前記報知情報を構成するMIB(Master Information Block)に含まれるように構成されていることを特徴とする請求項1に記載の移動通信システム。 - 前記パラメータには、前記移動通信システムの上りリンクにおいて使用される周波数帯域幅が設定されるように構成されており、
前記パラメータは、前記報知情報を構成するSIB(System Information Block)に含まれるように構成されていることを特徴とする請求項1に記載の移動通信システム。 - 前記所定値は、第1所定値及び第2所定値を含み、
前記第2移動局は、受信した前記報知情報に含まれる前記パラメータに前記第1所定値が設定されている場合に、偶数個のリソースブロックによって構成されている前記第2周波数帯域幅を、前記移動通信システムにおいて使用される周波数帯域幅であると判断するように構成されており、
前記第2移動局は、受信した前記報知情報に含まれる前記パラメータに前記第2所定値が設定されている場合に、奇数個のリソースブロックによって構成されている前記第2周波数帯域幅を、前記移動通信システムにおいて使用される周波数帯域幅であると判断するように構成されていることを特徴とする請求項1に記載の移動通信システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN200980143160.9A CN102204312B (zh) | 2008-10-31 | 2009-10-28 | 移动通信系统 |
US13/126,885 US8514740B2 (en) | 2008-10-31 | 2009-10-28 | Mobile communication system |
EP09823614A EP2352325A1 (en) | 2008-10-31 | 2009-10-28 | Mobile telecommunication system |
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JP2008282571 | 2008-10-31 | ||
JP2008-282571 | 2008-10-31 | ||
JP2008320014A JP5069670B2 (ja) | 2008-10-31 | 2008-12-16 | 移動通信システム |
JP2008-320014 | 2008-12-16 |
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WO2010050504A1 true WO2010050504A1 (ja) | 2010-05-06 |
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PCT/JP2009/068494 WO2010050504A1 (ja) | 2008-10-31 | 2009-10-28 | 移動通信システム |
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US (1) | US8514740B2 (ja) |
EP (1) | EP2352325A1 (ja) |
JP (1) | JP5069670B2 (ja) |
CN (1) | CN102204312B (ja) |
WO (1) | WO2010050504A1 (ja) |
Cited By (1)
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WO2010125769A1 (ja) * | 2009-04-28 | 2010-11-04 | 三菱電機株式会社 | 移動体通信システム |
Families Citing this family (7)
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KR101089448B1 (ko) * | 2006-11-10 | 2011-12-07 | 후지쯔 가부시끼가이샤 | 무선 통신 시스템 |
EP2816843A3 (en) * | 2010-01-12 | 2015-01-07 | Fujitsu Limited | Mobile communications system, wireless communication apparatus, mobile communication apparatus, and wireless communication method |
US9554368B2 (en) * | 2011-10-10 | 2017-01-24 | Lg Electronics Inc. | Method and apparatus for transceiving control information in a wireless communication system |
RU2623498C2 (ru) * | 2012-11-02 | 2017-06-27 | Телефонактиеболагет Л М Эрикссон (Пабл) | Поддержка гибкого спектра в сотовой беспроводной связи |
JP6864246B2 (ja) | 2017-05-25 | 2021-04-28 | 富士通株式会社 | 基地局装置、端末装置、無線通信システム、及び無線リソース情報通知方法 |
US10805980B2 (en) | 2017-06-29 | 2020-10-13 | Qualcomm Incorporated | Dynamic reclamation of resources reserved for forward compatibility |
CN111557079B (zh) * | 2018-01-03 | 2022-06-21 | 联想(北京)有限公司 | 非锚定载波频率偏移指示 |
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US6128490A (en) * | 1997-05-08 | 2000-10-03 | Nortel Networks Limited | Wireless communication system that supports selection of operation from multiple frequency bands and multiple protocols and method of operation therefor |
EP3461213A1 (en) * | 2005-11-04 | 2019-03-27 | LG Electronics Inc. | Random access dimensioning methods and procedures for frequency division multiplexing access systems |
CN101371475B (zh) * | 2006-01-11 | 2013-02-13 | 松下电器产业株式会社 | 无线通信基站装置和广播信道信号的发送频带设定方法 |
CN101009906B (zh) | 2006-01-24 | 2011-12-28 | 华为技术有限公司 | 一种具有不同带宽能力终端接入无线通信系统的方法 |
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2008
- 2008-12-16 JP JP2008320014A patent/JP5069670B2/ja not_active Expired - Fee Related
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2009
- 2009-10-28 WO PCT/JP2009/068494 patent/WO2010050504A1/ja active Application Filing
- 2009-10-28 EP EP09823614A patent/EP2352325A1/en not_active Withdrawn
- 2009-10-28 CN CN200980143160.9A patent/CN102204312B/zh not_active Expired - Fee Related
- 2009-10-28 US US13/126,885 patent/US8514740B2/en not_active Expired - Fee Related
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JP2008124832A (ja) * | 2006-11-13 | 2008-05-29 | Sharp Corp | 基地局装置、移動局装置、無線通信システム、セルサーチ方法およびプログラム |
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Cited By (3)
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---|---|---|---|---|
WO2010125769A1 (ja) * | 2009-04-28 | 2010-11-04 | 三菱電機株式会社 | 移動体通信システム |
US9350501B2 (en) | 2009-04-28 | 2016-05-24 | Mitsubishi Electric Corporation | Mobile communication system |
US10356635B2 (en) | 2009-04-28 | 2019-07-16 | Mitsubishi Electric Corporation | Mobile communication system |
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Publication number | Publication date |
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CN102204312A (zh) | 2011-09-28 |
EP2352325A1 (en) | 2011-08-03 |
US20110261772A1 (en) | 2011-10-27 |
US8514740B2 (en) | 2013-08-20 |
CN102204312B (zh) | 2014-07-02 |
JP2010136309A (ja) | 2010-06-17 |
JP5069670B2 (ja) | 2012-11-07 |
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