WO2009093687A2 - 無線制御装置および無線送信タイミング決定方法 - Google Patents
無線制御装置および無線送信タイミング決定方法 Download PDFInfo
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- WO2009093687A2 WO2009093687A2 PCT/JP2009/051073 JP2009051073W WO2009093687A2 WO 2009093687 A2 WO2009093687 A2 WO 2009093687A2 JP 2009051073 W JP2009051073 W JP 2009051073W WO 2009093687 A2 WO2009093687 A2 WO 2009093687A2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
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- 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
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
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- the present invention relates to a radio control apparatus and a radio transmission timing determination method, and more particularly to a radio control apparatus and a radio transmission timing determination method in a multiple access system in which a plurality of users share a radio transmission path and perform communication at the same time.
- code division multiple access CDMA
- time division multiple access time division multiple access
- FDMA frequency A division multiple access
- W-CDMA Wideband CDMA
- each channel used in a cell formed by a radio base station apparatus is a code.
- code division multiple access method such as a W-CDMA cellular system
- Channelization codes are excellent in identification characteristics, but the number of these codes is small, and it is necessary to shorten the sequence length of this code in order to increase the speed of wireless communication. However, if the sequence length of the channelization code is shortened, an empty space (code space) occupied by one code is greatly wasted. For this reason, how to reduce the number of channelization codes actually used has been a problem.
- F-DPCH Fractional Dedicated Physical Channel
- JP-A-2-260929 “3GPP TS25.211 V6.9.0”, [online], November 2007, 3rd Generation Partnership Project, [January 23, 2008 search], Internet ⁇ http://www.3gpp.org/ftp/ Specs / 2007-12 / Rel-6 / 25_series / 25211-690.zip>
- the radio control device can determine the radio transmission timing in association with a fixed rule for the short slot determined so that the users do not overlap each other.
- the radio transmission timing is determined according to a fixed law, the radio transmission timing of the radio frame used by the radio base station apparatus in one cell for communication to each user is different from the radio base station apparatus in another cell.
- the possibility of overlapping the radio transmission timing of the radio frame used for communication to the user is extremely increased. In this case, there is a problem that the wireless quality is deteriorated by increasing the amount of instantaneous wireless interference.
- the present invention has been made in order to solve the above-described problems, and the object of the present invention is to allocate different short interval slots to a plurality of wireless mobile stations using the same channelization code and for a plurality of users.
- An object of the present invention is to provide a radio control apparatus and a radio transmission timing determination method capable of improving radio quality by distributing radio transmission timings of radio frames.
- the radio network controller uses one radio frame having a plurality of radio slots to transmit one radio base station apparatus and a plurality of radio mobile stations connected to the radio base station apparatus.
- a radio control apparatus that allows mobile stations to share radio slots by allocating different short slot slots for communication with the radio base station apparatus to the mobile stations, and a first radio mobile station Short section slot storage means for storing usage status of short section slots assigned to radio links between the radio base station devices, and the short section slot storage means Short section slot selecting means for selecting an unused short section slot for a radio link between a second radio mobile station and the radio base station apparatus based on the stored usage status; and the short section slot selecting means Wireless transmission timing of a radio frame used for communication between the second radio mobile station and the radio base station device based on the short slot selected by the first radio mobile station and the radio Transmission timing determining means for determining at random is provided so as to be different from the radio transmission timing of the radio frame used for communication with the base station apparatus.
- the short interval slot selecting means assigns a short interval slot different from the short interval slot used by the first wireless mobile station already connected to the radio base station apparatus to the second radio mobile station and the radio Assigned to a radio link between base station devices.
- the transmission timing determining means is configured to determine a radio link between the second radio mobile station and the radio base station apparatus based on the short slot selected for the second radio mobile station by the short slot selection means.
- the radio transmission timing of the radio frame is determined randomly so as to be different from the radio transmission timing of the radio frame for the radio link between the first radio mobile station and the radio base station apparatus.
- the radio transmission timing of radio frames for a new radio link in one cell can be distributed in that cell. it can. For this reason, the radio transmission timing of the radio frame used in the radio link between the radio base station apparatus and a radio mobile station in the cell is between the radio base station apparatus and the radio mobile station in another cell.
- the possibility of overlapping the radio transmission timing of radio frames used in the radio link is reduced, and the risk of radio interference can be reduced. In this way, it is possible to achieve both improvement in channelization code utilization efficiency and improvement in radio quality.
- the transmission timing determination means includes the second radio mobile station and the radio base in the short slot selected for the radio link between the second radio mobile station and the radio base station device. It is preferable to determine the radio transmission timing of the radio frame so that control data communicated between the station apparatuses is transmitted.
- a radio frame is used so that communication of control data on a radio link between the second radio mobile station and the radio base station apparatus can be realized using the short slot allocated by the short slot selection means.
- the wireless transmission timing is determined by the transmission timing determination means. In this way, by determining the radio transmission timing of the radio frame so as to differ depending on the radio link, as a result, the control data is transmitted in a different short slot depending on the radio link.
- the radio control device further includes radio transmission timing storage means for storing a formula for obtaining a radio transmission timing candidate of a radio frame for each short slot, and the transmission timing determination means includes the radio transmission timing storage means, An equation corresponding to the short interval slot selected for the radio link between the second radio mobile station and the radio base station device is acquired by the short interval slot selection means, and randomly obtained using the acquired equation Preferably, the radio transmission timing of a radio frame used for communication between the second radio mobile station and the radio base station apparatus is determined. By using the formula corresponding to the short slot selected for the new radio link, the process of randomly determining the radio transmission timing of the radio frame is simplified.
- the equation includes a variable, and the transmission timing determination means is used for communication between the second radio mobile station and the radio base station apparatus by randomly selecting a value of the variable from candidates. It is preferable to determine the radio transmission timing of the radio frame to be transmitted. Thus, by randomly selecting the value of the variable, the process of randomly determining the wireless frame transmission timing is simplified.
- a radio transmission timing determination method uses one radio base station apparatus and a plurality of radios connected to the radio base station apparatus using each radio frame having a plurality of radio slots.
- Each mobile station performs communication, and each of the radio slots is used in a CDMA communication system having a plurality of short slot slots, and uses one channelization code connected to one radio base station apparatus.
- a wireless transmission timing determination method for assigning different short slot slots to a plurality of wireless mobile stations for communication with the wireless base station apparatus so that these wireless mobile stations can share a wireless slot A use short section slot reference step for referring to a short section slot used by a first wireless mobile station already connected to a station apparatus; Based on the result of the reference in the slot reference step, a short time for selecting an unused short interval slot from among all short interval slots in the radio frame for the radio link between the second radio mobile station and the radio base station device.
- the wireless transmission timing of the wireless frame used for communication between the second wireless mobile station and the wireless base station apparatus is determined as the first wireless A timing determination step of determining at random so as to be different from a radio transmission timing of a radio frame used for communication between the mobile station and the radio base station apparatus.
- the radio transmission timing determination method according to the present invention is used in a radio link between a radio base station apparatus and a radio mobile station in a cell.
- the wireless transmission timing of the wireless frame to be overlapped with the wireless transmission timing of the wireless frame used in the wireless link between the wireless base station apparatus and the wireless mobile station in another cell is reduced, and the wireless interference The fear can be reduced. Therefore, it is possible to achieve both improvement in channelization code utilization efficiency and improvement in radio quality.
- FIG. 1A shows a configuration example of a typical radio access network to which the present invention is applied.
- Radio base station apparatuses 200 and 201 are connected to radio control apparatus 100.
- Radio control apparatus 100 determines, notifies, and manages short-term slots and radio transmission timings assigned to a plurality of radio mobile stations 300 to 304 that perform radio communication with radio base station apparatuses 200 and 201. I do.
- W-CDMA a technique in which a plurality of radio mobile stations using the same channelization code in the same cell share a radio slot, specifically, a technique using F-DPCH is used.
- a number # 1-1 is assigned to the radio base station device 200, and a number # 1 is assigned to one radio mobile station 300. Is assigned.
- the radio network controller 100 instructs the radio base station apparatus # 1-1 and the radio mobile station # 1 to perform communication at the transmission timing T and the short slot t.
- An instruction from the radio control apparatus 100 is transmitted to the radio base station apparatus 200 and further notified from the radio base station apparatus 200 to the radio mobile station 300.
- the radio base station apparatus 200 (# 1-1) and the radio mobile station 300 (# 1) perform communication at the transmission timing and short slot specified by this instruction.
- This embodiment relates to downlink communication using F-DPCH in W-CDMA. Therefore, the radio base station apparatus 200 (# 1-1) transmits control data (for example, transmission power control command) to the radio mobile station 300 (# 1) using the short slot t at the radio frame transmission timing T. .
- the radio mobile station 300 (# 1) receives the control data using the short slot t at the radio frame reception timing T.
- FIG. 2 shows the relationship between the short slot, radio slot, and radio frame.
- the short slot is a time slot obtained by dividing one radio slot having a length of 2560 chips by a predetermined number.
- F-DPCH defined by W-CDMA
- the length of one short section slot is 256 chips.
- One radio frame is composed of a plurality of radio slots.
- W-CDMA one radio frame has 15 radio slots (# 1 to # 15), so the length of one radio frame is 38400 chips.
- FIG. 3 shows an example of data in a short slot transmitted in a radio slot.
- control data for example, transmission power control command
- the radio base station apparatus does not transmit control data to the radio mobile station (Tx OFF in FIG. 3 means that no transmission is performed), and the same channelization code as that used by the radio mobile station is used.
- the radio base station apparatus transmits control data to other (up to nine) radio mobile stations to be used. In this way, in one cell, a plurality of radio mobile stations using one channelization code share each radio slot.
- FIG. 4A shows an example of assignment of radio transmission timing of a radio frame to a radio mobile station.
- radio transmission timings of different radio frames are assigned to individual users (radio mobile stations) using the same downlink channelization code.
- FIG. 4B is a diagram illustrating an example of short slot allocation to radio mobile stations. As shown in the figure, short slots are allocated to individual users (wireless mobile stations) using the same downlink channelization code.
- the radio transmission timing means a time difference between the reference timing of a cell formed by a radio base station device (for example, the radio base station device 200) and the start timing of the radio frame.
- one radio frame includes radio slots # 1 to # 15.
- Radio mobile station (UE) # 1 receives a radio frame at radio transmission timing # 1.
- Radio mobile station (UE) # 2 receives a radio frame at radio transmission timing # 2.
- the timing of receiving a radio transmission frame shifts in the order of the radio mobile station numbers, and radio mobile station (UE) # 10 receives the radio frame at radio transmission timing # 10.
- one radio slot includes short section slots UE # 1 to UE # 10.
- the radio mobile station (UE) # 1 receives control data in the first short slot and does not receive control data in the remaining short slots.
- Radio mobile station (UE) # 1 receives control data in the second short slot, and does not receive control data in the remaining short slots.
- the short slot that receives the control data is shifted by one short slot.
- one wireless mobile station receives control data in the next wireless slot using the same short slot as the previous wireless slot.
- the radio mobile station (UE) # 1 receives control data in the first short slot even in the next radio slot. That is, one wireless mobile station receives control data every 2560 chips (the length of the wireless slot).
- the radio network controller 100 includes a short interval slot storage unit 101 (short interval slot storage unit), a short interval slot selection unit 102 (short interval slot selection unit), a timing determination unit 103 (transmission timing determination unit), and a slot / timing correspondence storage.
- Part 104 wireless transmission timing storage means is included.
- the short interval slot storage unit 101 stores a usage status table indicating the usage status of each short interval slot by a wireless mobile station using the same downlink channelization code in the same cell.
- the short interval slot selection unit 102 selects a short interval slot based on the usage status of the short interval slot stored in the short interval slot storage unit 101.
- the timing determination unit 103 determines the transmission timing of the radio frame according to the short interval slot selected by the short interval slot selection unit 102.
- the slot timing correspondence storage unit 104 stores a correspondence relationship between the short slot and the transmission timing candidate of the radio frame.
- FIG. 6 shows an example of the short slot usage state table managed by the short slot storing unit 101.
- the short slot storage unit 101 stores a plurality of usage status tables corresponding to a plurality of channelization codes in a plurality of cells.
- the usage status table stores information indicating whether each of the short slot is used by any one of the set radio links of the radio base station apparatus and the radio mobile station. In other words, the usage status table stores information indicating the short slot used by the radio mobile station already connected to the radio base station apparatus.
- the short slot selection unit 102 With reference to the slot storage unit 101, one short section slot is selected from among the short section slots that are not used. This selection may be performed in a predetermined order or may be performed at random.
- the radio of the radio frame used for communication of the new radio link between the radio base station apparatus for example, the radio base station apparatus 200
- the transmission timing is different from the radio transmission timing of a radio frame used for communication of an existing radio link between the radio base station device (for example, the radio base station device 200) and a radio mobile station already connected to the radio base station device.
- the timing is determined by the timing determination unit 103.
- the timing determination unit 103 for communication between a new radio mobile station and a radio base station apparatus (for example, the radio base station apparatus 200) in which the short slot is selected, another radio mobile station and another radio base station apparatus (for example, the radio transmission timing of the radio frame is randomly determined so as to reduce the amount of interference given to the communication between the radio base station apparatuses 201).
- the random determination of the radio transmission timing of the radio frame may be performed as follows, for example.
- the timing determination unit 103 refers to the correspondence relationship between the short slot and the wireless transmission timing candidate in the wireless transmission timing candidate management table stored in the slot / timing correspondence storage unit 104.
- a wireless transmission timing candidate management table managed by the slot / timing correspondence storage unit 104 is shown in FIG.
- the short slot number (# 1 to # 10) shown in FIG. 6 and FIG. 7, that is, the short slot number selected by the short slot selector 102 is based on the above-mentioned cell reference timing. It is not based on the start position of the radio frame.
- the timing determination unit 103 refers to and selects a wireless frame transmission timing candidate corresponding to the short slot selected in the wireless transmission timing candidate management table as described above.
- each wireless transmission timing candidate is expressed as the number of chips expressed by a mathematical expression including a variable ⁇ (integer).
- the timing determination unit 103 randomly selects (determines) the value of the variable ⁇ existing in the corresponding wireless transmission timing candidate from the possible candidates (described later), thereby wirelessly transmitting the wireless frame. Determine the transmission timing. In this way, by using an equation corresponding to the short slot selected for the new radio link and by randomly selecting the value of the first term variable ⁇ in the equation, the radio transmission timing of the radio frame is determined. Random decision processing is simplified.
- the wireless transmission timing candidates on the wireless transmission timing candidate management table in FIG. 7 are the range of time difference between the cell reference timing and the wireless frame start timing in W-CDMA (0 to 38399 chips). It is set in consideration of.
- 256 ⁇ 10 in the first term of the formula shown in FIG. 7 is the length of one radio slot
- “256” in the second term is the length of one short slot.
- the second term of the equation is 256 ⁇ 0, 256 ⁇ 1, 256 ⁇ 2,. . .
- the timing determination unit 103 determines an expression corresponding to the short interval slot selected (allocated) by the short interval slot selection unit 102 and determines the radio transmission timing of the radio frame, as a result, the short interval slot
- the short slot assigned by the selector 102 becomes valid (a new radio link between the radio base station apparatus and the new radio mobile station using the short slot assigned by the short slot selector 102) Communication of control data is realized). That is, the timing determination unit 103 performs control for communication between the new radio mobile station and the radio base station apparatus in the short slot selected for the new radio link between the new radio mobile station and the radio base station apparatus.
- the wireless transmission timing of the wireless frame is determined so that data is transmitted.
- the control data is transmitted in a different short slot depending on the radio link.
- the radio network controller 100 performs the above operation for each channelization code of each cell. In this way, a plurality of wireless mobile stations can share each wireless slot.
- the short interval slot selection unit 102 sets a short interval slot different from the short interval slot used by the radio mobile station already connected to the radio base station device between the new radio mobile station and the radio base station device. Assign to the radio link.
- the timing determination unit 103 determines the radio link between the new radio mobile station and the radio base station apparatus based on the short zone slot selected for the new radio mobile station by the short zone slot selection unit 102.
- the radio transmission timing of the radio frame is randomly determined so as to be different from the radio transmission timing of the radio frame for the existing radio link between the already connected radio mobile station and the radio base station apparatus.
- the radio transmission timing of radio frames for a plurality of users can be distributed in that cell. it can.
- the radio transmission timing of a radio frame used in a radio link between a radio base station apparatus (for example, the radio base station apparatus 200) and a certain radio mobile station in the cell (for example, the cell of the radio base station apparatus 200) is Duplicated radio transmission timing of a radio frame used in a radio link between a radio base station apparatus (for example, the radio base station apparatus 201) and a radio mobile station in another cell (for example, the cell of the radio base station apparatus 201) Therefore, the possibility of radio interference can be reduced. In this way, it is possible to achieve both improvement in channelization code utilization efficiency and improvement in radio quality.
- the above embodiment is a technique that uses F-DPCH in downlink communication by W-CDMA, but the present invention is not limited to this embodiment.
- the present invention can also be applied to other technologies in which a plurality of wireless mobile stations using the same channelization code in the same cell share a wireless slot.
- the present invention can also be applied to uplink communication. If the present invention is applied to uplink communication, it is used in an uplink between a radio base station apparatus (for example, the radio base station apparatus 200) and a radio mobile station in a cell (for example, a cell of the radio base station apparatus 200).
- the radio transmission timing of the radio frame is a radio used in an uplink between a radio base station apparatus (for example, the radio base station apparatus 201) and a radio mobile station in another cell (for example, the cell of the radio base station apparatus 201).
- a radio base station apparatus for example, the radio base station apparatus 201
- a radio mobile station in another cell for example, the cell of the radio base station apparatus 201.
- the possibility of overlapping the radio transmission timing of the frame is reduced, and the risk of radio interference can be reduced.
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Claims (5)
- 複数の無線スロットを有する各無線フレームを利用して、1つの無線基地局装置と前記無線基地局装置に接続された複数の無線移動局の各々が通信を行い、前記無線スロットの各々が複数の短区間スロットを有しているCDMA通信システムで使用され、1つの無線基地局装置に接続された1つのチャネライゼーションコードを利用する複数の無線移動局に前記無線基地局装置との通信のために異なる短区間スロットを割り当てることによって、これらの無線移動局が無線スロットを共用可能にする無線制御装置であって、
第1の無線移動局と前記無線基地局装置の間の無線リンクに対し割り当てた短区間スロットの使用状況を記憶する短区間スロット記憶手段と、
前記短区間スロット記憶手段に記憶された使用状況に基づいて、未使用の短区間スロットを第2の無線移動局と前記無線基地局装置の間の無線リンクに対し選択する短区間スロット選択手段と、
前記短区間スロット選択手段により選択された短区間スロットに基づき、前記第2の無線移動局と前記無線基地局装置との間で通信に利用される無線フレームの無線送信タイミングを、前記第1の無線移動局と前記無線基地局装置との間で通信に利用される無線フレームの無線送信タイミングとは異なるように、ランダムに決定する送信タイミング決定手段と
を備えたことを特徴とする無線制御装置。 - 前記送信タイミング決定手段は、前記第2の無線移動局と前記無線基地局装置の間の無線リンクに対し選択された前記短区間スロットで、前記第2の無線移動局と前記無線基地局装置間で通信する制御データが送信されるように無線フレームの無線送信タイミングを決定することを特徴とする請求項1に記載の無線制御装置。
- 無線フレームの無線送信タイミングの候補を求める式を短区間スロットごとに記憶した無線送信タイミング記憶手段をさらに備え、
前記送信タイミング決定手段は、前記無線送信タイミング記憶手段から、前記短区間スロット選択手段により前記第2の無線移動局と無線基地局装置の間の無線リンクに対して選択された短区間スロットに対応する式を取得し、前記取得された式を用いてランダムに、前記第2の無線移動局と前記無線基地局装置との間で通信に利用される無線フレームの無線送信タイミングを決定することを特徴とする請求項1または2に記載の無線制御装置。 - 前記式は変数を含み、前記送信タイミング決定手段は、前記変数の値を候補の中からランダムに選択することにより、前記第2の無線移動局と前記無線基地局装置との間で通信に利用される無線フレームの無線送信タイミングを決定することを特徴とする請求項3に記載の無線制御装置。
- 複数の無線スロットを有する各無線フレームを利用して、1つの無線基地局装置と前記無線基地局装置に接続された複数の無線移動局の各々が通信を行い、前記無線スロットの各々が複数の短区間スロットを有しているCDMA通信システムで使用され、1つの無線基地局装置に接続された1つのチャネライゼーションコードを利用する複数の無線移動局に前記無線基地局装置との通信のために異なる短区間スロットを割り当てることによって、これらの無線移動局が無線スロットを共用可能にする無線送信タイミング決定方法であって、
無線基地局装置に既に接続中の第1の無線移動局が使用する短区間スロットを参照する使用短区間スロット参照ステップと、
前記使用短区間スロット参照ステップにおける参照の結果に基づき、無線フレーム内の全短区間スロットの中から未使用の短区間スロットを第2の無線移動局と前記無線基地局装置の間の無線リンクに対し選択する短区間スロット選択ステップと、
前記選択された短区間スロットに基づき、前記第2の無線移動局と前記無線基地局装置の間で通信に利用される無線フレームの無線送信タイミングを、前記第1の無線移動局と前記無線基地局装置との間で通信に利用される無線フレームの無線送信タイミングとは異なるように、ランダムに決定するタイミング決定ステップと
を備えることを特徴とする無線送信タイミング決定方法。
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CN200980102985.6A CN101926208B (zh) | 2008-01-24 | 2009-01-23 | 无线控制设备和无线传输定时确定方法 |
US12/864,174 US8565172B2 (en) | 2008-01-24 | 2009-01-23 | Radio control apparatus and radio transmission timing determination method |
EP09703996.0A EP2247149B1 (en) | 2008-01-24 | 2009-01-23 | Radio control apparatus and radio transmission timing determination method |
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JP2014204424A (ja) * | 2013-04-10 | 2014-10-27 | パナソニック株式会社 | 無線通信システム |
JP2016005119A (ja) * | 2014-06-17 | 2016-01-12 | 日本電気通信システム株式会社 | 情報送受信システム、情報通信装置、管理装置、情報送受信方法、情報通信装置のプログラム及び管理装置のプログラム |
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WO2015139178A1 (zh) | 2014-03-17 | 2015-09-24 | 华为技术有限公司 | Tpc命令传输配置方法、传输方法及装置 |
US10694536B2 (en) * | 2017-12-04 | 2020-06-23 | Qualcomm Incorporated | Dynamic downlink control information timing indications in new radio |
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JP3961829B2 (ja) * | 1999-10-02 | 2007-08-22 | サムスン エレクトロニクス カンパニー リミテッド | 符号分割多重接続通信システムの制御チャネル信号を断続的に送受信する装置及び方法 |
EP1254533A4 (en) | 2000-02-09 | 2006-04-05 | Golden Bridge Tech Inc | COLLISION AVOIDANCE |
JP2002064418A (ja) * | 2000-08-23 | 2002-02-28 | Casio Comput Co Ltd | プレゼンテーション装置、プレゼンテーション方法及び情報記録媒体 |
KR20020034640A (ko) * | 2000-11-02 | 2002-05-09 | 윤종용 | 협대역 시분할 코드 분할 다중 접속 시스템에서 부프레임전송 타임 슬럿을 랜덤하게 제어하는 장치 및 방법 |
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- 2009-01-23 WO PCT/JP2009/051073 patent/WO2009093687A2/ja active Application Filing
- 2009-01-23 CN CN200980102985.6A patent/CN101926208B/zh not_active Expired - Fee Related
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JP2014204424A (ja) * | 2013-04-10 | 2014-10-27 | パナソニック株式会社 | 無線通信システム |
JP2016005119A (ja) * | 2014-06-17 | 2016-01-12 | 日本電気通信システム株式会社 | 情報送受信システム、情報通信装置、管理装置、情報送受信方法、情報通信装置のプログラム及び管理装置のプログラム |
Also Published As
Publication number | Publication date |
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JPWO2009093687A1 (ja) | 2011-05-26 |
JP5200035B2 (ja) | 2013-05-15 |
US8565172B2 (en) | 2013-10-22 |
EP2247149A4 (en) | 2011-04-20 |
CN101926208B (zh) | 2014-01-22 |
EP2247149B1 (en) | 2015-12-23 |
US20100303043A1 (en) | 2010-12-02 |
CN101926208A (zh) | 2010-12-22 |
WO2009093687A3 (ja) | 2009-10-29 |
EP2247149A2 (en) | 2010-11-03 |
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