JP2000184425A - Radio communication base station equipment - Google Patents

Radio communication base station equipment

Info

Publication number
JP2000184425A
JP2000184425A JP35601798A JP35601798A JP2000184425A JP 2000184425 A JP2000184425 A JP 2000184425A JP 35601798 A JP35601798 A JP 35601798A JP 35601798 A JP35601798 A JP 35601798A JP 2000184425 A JP2000184425 A JP 2000184425A
Authority
JP
Japan
Prior art keywords
communication device
mobile communication
means
communication
beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP35601798A
Other languages
Japanese (ja)
Inventor
Hidehiro Takahashi
英博 高橋
Original Assignee
Toshiba Corp
株式会社東芝
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, 株式会社東芝 filed Critical Toshiba Corp
Priority to JP35601798A priority Critical patent/JP2000184425A/en
Publication of JP2000184425A publication Critical patent/JP2000184425A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To reduce hand-over frequency and to improve the use efficiency of radio resource by controlling a system so that a first beam is formed in the direction of a specified station when mobile communication equipment is the specified station and communicating with the specified station by means of a first communication means.
SOLUTION: A wide beam communication part 11, a narrow beam communication part 12, a narrow beam direction control part 20, a network interface part 30 and a control part 40 are installed. In radio communication base station equipment, a mobile station where communication is started is judged to be an on-vehicle mobile station or not from a reception signal. When it is not the on-vehicle mobile station, communication is executed through the wide beam communication part 11. When it is not the on-vehicle mobile station, the narrow beam communication part 12 executes communication while the position is followed up. Since the on-vehicle mobile station whose hand-over occurrence frequency is high is followed up with a narrow beam and communication is executed, the number of hand-over occurrence times can be reduced.
COPYRIGHT: (C)2000,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】この発明は、例えば携帯電話システムなどの移動通信システムに用いられる無線通信基地局装置に関する。 TECHNICAL FIELD The present invention relates to, for example, a radio communication base station apparatus used in mobile communication systems such as cellular phone systems.

【0002】 [0002]

【従来の技術】周知のように、従来の大ゾーン方式の移動通信システムの無線通信基地局装置BSは、例えば図7に示すように、3等分された各無線ゾーンに対して、 DESCRIPTION OF THE PRIOR ART As is well known, the radio communication base station apparatus BS the mobile communication system of a conventional large zone system, for example, as shown in FIG. 7, for each radio zone which is divided into three equal parts,
互いに異なる周波数帯f1〜f3をそれぞれ割り当て、 Assigning different frequency bands f1~f3 respectively,
各無線ゾーン内の非車載移動局PSと、上記割り当てた周波数帯を通じて通信を行なうようにしていた。 And off-board mobile station PS in each radio zone, had to perform communication through the allocated frequency band.

【0003】しかしながら、上述したような大ゾーン方式では、無線ゾーンが比較的広域であるため、上記無線ゾーン間のハンドオーバの発生頻度は低いものの、周波数の利用効率が低いという問題があった。 However, in the large zone system as described above, because the radio zone is relatively wide, although the frequency of occurrence of handover between the radio zones is low, there is a problem of low utilization efficiency of frequencies.

【0004】このような問題に対応するために従来では、PHS(Personal Handyphone System)に代表される小ゾーン方式の移動通信システムの開発が行なわれた。 In conventional in order to cope with such problems, development of a mobile communication system of the small zone system represented by PHS (Personal Handyphone System) it has been performed. この小ゾーン方式では、図8に示すように、送信出力の小さい多数の無線通信基地局装置CSを用いて通信エリアを拡充し、各無線通信基地局装置CSが互いに共通の周波数帯を使用するようにしている。 In this small zone system, as shown in FIG. 8, the communication area expanded by using a small number of radio communication base station apparatus CS of transmission power, the radio communication base station apparatus CS uses common frequency band from each other It is way.

【0005】しかし、このような小ゾーン方式では、上述したように各無線通信基地局装置CSが互いに共通の周波数帯を使用できるため、単位面積あたりの周波数の利用効率が高く、多くのユーザを収容できるものの、多数の無線通信基地局装置CSを敷設する必要があるばかりか、各無線通信基地局装置CSの無線ゾーンが小さいために、ハンドオーバの発生頻度が高く、システムを統括する制御局に過大な処理能力が必要とされるという問題があった。 However, in such a small zone scheme, since each radio communication base station apparatus CS as described above can be used together common frequency band, high frequency utilization efficiency per unit area, the number of users although accommodate, not only it is necessary to lay a large number of radio communication base station apparatus CS, for the radio zone of each radio communication base station apparatus CS is small, high frequency of handovers is, the control station which controls the system excessive processing capacity there has been a problem that is required.

【0006】尚、上述したような大ゾーン方式および小ゾーン方式の各問題は、FDMA(Frequency Division [0006] In addition, each issue of the large zone system and the small zone method as described above, FDMA (Frequency Division
Multiple Access)方式やTDMA(Time Division Mu Multiple Access) system or a TDMA (Time Division Mu
ltiple Access)方式だけでなく、CDMA(Code Divi ltiple Access) system as well, CDMA (Code Divi
sion Multiple Access)方式を採用するシステムにも、 Even systems that employ sion Multiple Access) system,
同様に生じる問題である。 Is a problem that the same occurs.

【0007】 [0007]

【発明が解決しようとする課題】従来においては、大ゾーン方式は、周波数や拡散符号などの無線資源の利用効率が低く、一方小ゾーン方式は、多数の無線通信基地局装置を必要とし、ハンドオーバの発生頻度が高いため、 In [0008] Conventionally, large zone system, low utilization efficiency of radio resources such as frequency and spreading code, whereas small zone method requires a large number of radio communication base station apparatus, handover since the frequency of occurrence is high,
過大な処理能力を必要とするという問題があった。 There is a problem that requires excessive processing power.

【0008】この発明は上記の問題を解決すべくなされたもので、ハンドオーバ頻度を低めるとともに、無線資源の利用効率を高めることが可能な無線通信基地局装置を提供することを目的とする。 [0008] The present invention has been made to solve the above problems, with lower the handovers, and to provide a radio communication base station apparatus that can increase the utilization efficiency of radio resources.

【0009】 [0009]

【課題を解決するための手段】上記の目的を達成するために、この発明は、無線回線を介して接続される移動通信装置を有線通信網に接続する無線通信基地局装置において、空間に第1のビームを形成して、移動通信装置と無線回線を介して通信を行なう第1の通信手段と、この第1の通信手段が形成する第1のビームよりも広いビーム幅の第2のビームを空間に形成し、移動通信装置と無線回線を介して通信を行なう第2の通信手段と、移動通信装置から受信した信号から、移動通信装置が予め設定した特定局であるか否か識別する識別手段と、この識別手段によって移動通信装置が特定局であると識別された場合に、この特定局より受信した信号から特定局の存在する方向を検出する方向検出手段と、この方向検出手段にて求めた方向に To achieve the above object of the Invention The, present invention, in a radio communication base station apparatus connected to a wired communication network mobile communication device connected via a radio channel, a the space forming a first beam, a first communication means for communicating via the mobile communication device and the wireless line, a second beam of wide beam width than the first beam the first communication means formed was formed in the space, identifying a second communication means for communicating via the mobile communication device and the radio channel from the signal received from the mobile communication device, whether the mobile communication device is a specific station that has been set in advance and identification means, if it is identified as the mobile communication device is a specific station by the identifying means, and direction detection means for detecting the direction in which the presence of a particular station from a signal received from the particular station, to the direction detecting means in the direction obtained Te 第1の通信手段が第1のビームを形成するように制御し、第1の通信手段が特定局と通信するように制御する通信制御手段とを具備して構成するようにした。 First communication means is controlled to form a first beam, and so that the first communication means configured by including a communication control unit for controlling to communicate with a particular station.

【0010】上記構成の無線通信基地局装置では、第1 [0010] In the radio communication base station apparatus having the above structure, first
のビームにて通信を行なう第1の通信手段と、第1のビームよりもビーム幅の広い第2のビームにて通信を行なう第2の通信手段とを備え、移動通信装置が特定局である場合に、この特定局の方向に第1のビームを形成するように制御して上記特定局と第1の通信手段で通信するようにしている。 Comprising of a first communication means for communicating with the beam, a second communication means for communicating over a wide second beam beamwidth than the first beam, the mobile communication device is in a particular station If, and to communicate with the specific station and the first communication means is controlled to form a first beam in the direction of this particular station.

【0011】したがって、上記構成の無線通信基地局装置によれば、上記特定局のハンドオーバの発生回数を低減することができ、また第1の通信手段と第2の通信手段で無線資源を共有できるため、無線資源の利用効率が向上できる。 [0011] Therefore, according to the radio communication base station apparatus having the above structure, it is possible to reduce the number of occurrences of the handover of the specific station, you can share the radio resources also in the first communication means and second communication means Therefore, it is possible to improve utilization efficiency of radio resources.

【0012】また、上記の目的を達成するために、この発明は、無線回線を介して接続される移動通信装置を有線通信網に接続する無線通信基地局装置において、空間に第1のビームを形成して、移動通信装置と無線回線を介して通信を行なう第1の通信手段と、この第1の通信手段が形成する第1のビームよりも広いビーム幅の第2 [0012] In order to achieve the above object, the present invention is a radio communication base station apparatus connected to a wired communication network mobile communication device connected via a radio line, the first beam in the space formed by a first communication means for communicating via the mobile communication device and the wireless line, a second wide beam width than the first beam the first communication means formed
のビームを空間に形成し、移動通信装置と無線回線を介して通信を行なう第2の通信手段と、移動通信装置のハンドオーバの発生頻度を監視して、この発生頻度が予め設定した値以上となる移動通信装置を特定局として検出する特定局検出手段と、この特定局検出手段によって検出された特定局より受信した信号から特定局の存在する方向を検出する方向検出手段と、この方向検出手段にて求めた方向に、第1の通信手段が第1のビームを形成するように制御し、第1の通信手段が特定局と通信するように制御する通信制御手段とを具備して構成するようにした。 Beam forming in the space, and a second communication means for communicating via the mobile communication device and the wireless line, to monitor the frequency of handovers of a mobile communication device, and the frequency of occurrence greater than or equal to a preset a specific station detecting means for detecting a particular station the mobile communication device comprising: a direction detection unit for detecting a direction in which the presence of a particular station from the received signal from the identified stations detected by the particular station detecting means, the direction detecting means the direction obtained by the first communication means is controlled so as to form a first beam, the first communication means configured by including a communication control unit for controlling to communicate with a particular station It was so.

【0013】上記構成の無線通信基地局装置では、第1 [0013] In the radio communication base station apparatus having the above structure, first
のビームにて通信を行なう第1の通信手段と、第1のビームよりもビーム幅の広い第2のビームにて通信を行なう第2の通信手段とを備え、ハンドオーバの発生頻度が所定値以上となる移動通信装置を特定局とし、この特定局の方向に第1のビームを形成するように制御して上記特定局と第1の通信手段で通信するようにしている。 A first communication means for communicating with the beam, than the first beam and a second communication means for communicating over a wide second beam beamwidth, frequency of handovers is equal to or higher than a predetermined value and identify station mobile communication device as a, and to communicate with the specific station and the first communication means is controlled to form a first beam in the direction of this particular station.

【0014】したがって、上記構成の無線通信基地局装置によれば、ハンドオーバの発生回数の多い特定局と通信を行なうのに、第1の通信手段のビームで特定局を追従して通信を行なうため、ハンドオーバの発生回数を低減することができ、また第1の通信手段と第2の通信手段で無線資源を共有できるため、無線資源の利用効率が向上できる。 [0014] Thus, according to the radio communication base station apparatus with the above configuration, to communicate with the handover occurrence count with many specific station, for communication by following a specific station in the beam of the first communication means , it is possible to reduce the number of occurrences of the handover, also can be shared radio resources in the first communication means and second communication means, thereby improving the utilization efficiency of radio resources.

【0015】 [0015]

【発明の実施の形態】以下、図面を参照して、この発明の一実施形態について説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the drawings, a description will be given of an embodiment of the present invention. 図1は、この発明の一実施形態に係わる移動通信システムの無線通信基地局装置BSの構成を示すものである。 Figure 1 shows a configuration of a radio communication base station apparatus BS of the mobile communication system according to an embodiment of the present invention. 無線通信基地局装置B Radio communication base station apparatus B
Sは、広ビーム通信部11と、狭ビーム通信部12と、 S is a wide beam communication unit 11, a narrow beam communication unit 12,
狭ビーム方向制御部20と、ネットワークインターフェイス部30と、制御部40とを備えている。 A narrow beam direction control unit 20, and a network interface unit 30, and a control unit 40.

【0016】広ビーム通信部11は、図2に示すように、当該無線通信基地局装置BSを中心とする3つのセクタに対して、それぞれ約120゜の広ビームWB1〜 The wide beam communication unit 11, as shown in FIG. 2, for three sectors centered on the radio communication base station apparatus BS, wide beam respectively about 120 ° WB1~
WB3を形成する無線機を備えており、各セクタ内の移動局(非車載移動局PSおよび車載移動局MS)と無線通信を行なうものである。 It includes a radio machine for forming a WB3, in which mobile stations in each sector (non-vehicle mobile station PS and the in-vehicle mobile station MS) perform wireless communications.

【0017】狭ビーム通信部12は、図2に示すように、例えば10゜から30゜程度の狭ビームNB1,N The narrow beam communication unit 12, as shown in FIG. 2, for example from 10 ° to about 30 ° narrow beam NB1, N
B2を形成して、車載移動局MSと無線通信を行なうものである。 Forming a B2, and performs vehicle mobile station MS and the radio communication.

【0018】狭ビーム方向制御部20は、後述の制御部40からの目標方向情報に基づいて上記狭ビーム通信部12にて形成される狭ビームNB1,NB2の形成方向を可変制御するものである。 The narrow beam direction control unit 20 is configured to variably control the formation direction of the narrow beam NB1, NB2 formed by the narrow beam communication unit 12 based on the target direction information from the control unit 40 described later . 形成方向の可変は、例えばモータなどの駆動機構を採用しても実現可能であると共に、狭ビーム通信部12がフェィズドアレイアンテナにより狭ビームを形成する場合には、送受信信号の通過位相を制御することのよっても実現可能である。 Variable formation direction, for example, with employs a drive mechanism such as a motor can also be implemented, if narrow beam communication unit 12 forms a narrow beam by Fei Zudo array antenna, controls the passage phase of the reception signal It can also be realized by the be.

【0019】ネットワークインターフェイス部30は、 [0019] The network interface unit 30,
上記広ビーム通信部11あるいは狭ビーム通信部12を介して接続される移動局(非車載移動局PSおよび車載移動局MS)を、図示しない公衆網などの通信網に接続するものである。 The wide beam communication unit 11 or the narrow beam the mobile station communication unit 12 via the connected (non-vehicle mobile station PS and the in-vehicle mobile station MS), is intended to be connected to a communication network such as a public network, not shown.

【0020】制御部40は、当該無線通信基地局装置B The control unit 40, the radio communication base station apparatus B
Sの各部を統括して制御するもので、当該システムの上位層に設けられる制御局装置(図示しない)の指示により、非車載移動局PSや車載移動局MSの位置登録情報の収集や発着信に関わる制御を行なう。 Those controls all the units of S, in accordance with an instruction from the control station device provided in the upper layer of the system (not shown), collection and sending and receiving location registration information of the non-vehicle mobile station PS and in-vehicle mobile station MS the control related to the conduct. また、制御部4 In addition, the control unit 4
0は、このような通常の制御機能の他に、新たな制御機能として、移動局判定手段41と、目標方向検出手段4 0 In addition to such normal control functions, as a new control function, and the mobile station determining means 41, the target direction detection means 4
2とを備える。 And a 2.

【0021】移動局判定手段41は、広ビーム通信部1 The mobile station determination unit 41, the wide beam communication unit 1
1にて受信した受信信号に含まれる移動局の識別情報より、接続される移動局を非車載移動局PSであるか車載移動局MSであるか判定するものである。 From identification information of the mobile station included in the received signal received by 1, it is to determine whether the mobile station is connected is a non-vehicle mobile station PS at that one vehicle mobile station MS.

【0022】目標方向検出手段42は、狭ビーム通信部12にて受信した受信信号に基づいて、上記移動局判定手段41にて検出された車載移動局MSの位置する方向を検出するものである。 The target direction detection means 42 detects a direction based on the reception signal received by the narrow beam communication unit 12, to the position of the vehicle mobile station MS which is detected by the mobile station determining means 41 .

【0023】上記方向の検出方法としては、例えば狭ビーム通信部12のアンテナを、図3に示すように互いに異なる方向に受信ビームを形成する3つのアンテナで構成し、各アンテナの受信信号の強度差より車載移動局M The intensity of the direction as a detection method, for example narrow antenna beam communication unit 12, and consists of three antennas to form a receive beam in different directions as shown in FIG. 3, the received signal of each antenna vehicle than the difference between a mobile station M
Sの位置を求めるようにする。 To determine a position of the S.

【0024】次に、上記構成の無線通信基地局装置BS Next, the configuration of the radio communication base station apparatus BS
の動作について説明する。 Description will be given of the operation. 通信網から移動局に対して着信があるか、あるいは移動局より発呼が発生すると、広ビーム通信部11が移動局との間に無線通信リンクを開設し、図4に示す処理が開始される。 There is an incoming call to the mobile station from the communication network, or the calling from the mobile station is generated, the wide beam communication unit 11 is established a wireless communication link between a mobile station, the process shown in FIG. 4 is started that.

【0025】まず、ステップ4aでは、移動局判定手段41が、広ビーム通信部11にて受信した受信信号より移動局の識別情報を抽出し、この移動局が車載移動局M [0025] First, in step 4a, the mobile station determination unit 41 extracts the identification information of the mobile station from the received signal received by the wide beam communication unit 11, the mobile station onboard the mobile station M
Sであるか否か判定する。 And it determines whether or not the S. ここで、車載移動局MSでない、すなわち非車載移動局PSである場合にはステップ4bに移行し、車載移動局MSの場合にはステップ4f Here, not-vehicle mobile station MS, i.e. goes to step 4b in the case of the off-board mobile station PS, the case of the in-vehicle mobile station MS step 4f
に移行する。 To migrate to.

【0026】ステップ4bでは、制御部40が、上記移動局、すなわち非車載移動局PSが広ビーム通信部11 [0026] In step 4b, the control unit 40, the mobile station, i.e. off-board mobile station PS is broad beam communication unit 11
を通じて通信を行なうように制御し、ステップ4cに移行する。 Controlled to communicate through, the process proceeds to step 4c.

【0027】ステップ4cでは、制御部40が、広ビーム通信部11にて受信した上記非車載移動局PSからの受信信号の強度を監視して、ハンドオーバ処理を行なう必要があるか否か判定する。 [0027] In step 4c, the control unit 40 monitors the intensity of the received signal from the off-board mobile station PS received by the wide beam communication unit 11 determines whether it is necessary to perform a handover process . ここで、その必要がある場合には、ステップ4dに移行し、必要がない場合にはステップ4eに移行する。 Here, when there is the need, it proceeds to step 4d, when it is not necessary, the process proceeds to step 4e.

【0028】ステップ4dでは、制御部40が、ハンドオーバ処理として、広ビーム通信部11の無線機を切り換えることにより、移動する非車載移動局PSと無線通信リンクを維持し、ステップ4eに移行する。 [0028] In step 4d, the control unit 40, as the handover process, by switching the radio of the wide beam communication unit 11 maintains the off-board mobile station PS and the wireless communication link to the mobile, the process proceeds to step 4e.

【0029】ステップ4eでは、制御部40が、上記非車載移動局PSとの通信が終了したか否かを判定する。 [0029] In step 4e, the controller 40 determines whether communication with the off-board mobile station PS is completed.
ここで、通信が終了した場合には当該処理を終了し、通信が継続している場合にはステップ4bに移行する。 Here, when the communication is terminated ends the process, if the communication is continuing, the process proceeds to step 4b.

【0030】一方、ステップ4fでは、目標方向検出手段42が、狭ビーム通信部12にて受信した受信信号に基づいて、移動局、すなわち車載移動局MSの位置する方向を検出する。 On the other hand, in step 4f, target direction detection means 42, based on the reception signal received by the narrow beam communication unit 12, the mobile station, i.e. detects the direction in which the position of the in-vehicle mobile station MS. そして、この検出した情報に基づいて狭ビーム方向制御部20が、狭ビーム通信部12の狭ビームの形成方向を、車載移動局MSの位置する方向に向け、ステップ4gに移行する。 The narrow beam steering unit 20 based on the detected information, a narrow beam direction forming a narrow beam communication unit 12, toward a direction in which the position of the in-vehicle mobile station the MS, and proceeds to step 4g.

【0031】ステップ4gでは、狭ビーム通信部12を通じて、上記車載移動局MSと通信を行ない、ステップ4hに移行する。 [0031] In step 4g, through narrow beam communication unit 12 performs communication with the vehicle mobile station the MS, and proceeds to step 4h. ステップ4hでは、制御部40が、上記車載移動局MSとの通信が終了したか否かを判定する。 In step 4h, the control unit 40 determines whether the communication between the vehicle-mounted mobile station MS has been completed. ここで、通信が終了した場合には当該処理を終了し、通信が継続している場合にはステップ4fに移行する。 Here, when the communication is terminated ends the process, if the communication is continuing, the process proceeds to step 4f.

【0032】以上のように、上記構成の無線通信基地局装置BSでは、通信が開始された移動局がその受信信号から車載移動局MSであるか否か判定し、図5に示すように、非車載移動局PSについては広ビーム通信部11 [0032] As described above, in the radio communication base station apparatus BS the above configuration, the mobile station communication is initiated is determined whether a vehicle mobile station MS from the received signal, as shown in FIG. 5, off-board the mobile station PS is broad beam communication unit 11
を通じて通信を行ない、一方、そして車載移動局MSの場合には、その位置を追従しながら狭ビーム通信部12 It performs communication through, whereas, and in the case of the in-vehicle mobile station MS, narrow beam communication unit while following the position 12
により通信を行なうようにしている。 And to perform the communication by.

【0033】したがって、上記構成の無線通信基地局装置BSによれば、ハンドオーバの発生頻度の高い車載移動局MSを狭ビームで追従して通信を行なうため、ハンドオーバの発生回数を低減することができる。 [0033] Thus, according to the radio communication base station apparatus BS the above configuration, for performing communication by following a high-vehicle mobile station MS of frequency of handovers in a narrow beam, it is possible to reduce the number of occurrences of the handover .

【0034】また、例えば車載移動局MSをいわゆる「走るオフィス」として運用する場合、一般に非車載移動局PSに比べ大容量かつ高速な通信を行なう必要があるため、CDMA方式の拡散符号やFDMA方式の周波数といった無線資源を同時に複数使用する。 Further, for example, vehicle if the mobile station MS operating as a so-called "Office running", generally it is necessary to perform large-capacity and high-speed communication compared to the off-board mobile station PS, the spreading code and FDMA system a CDMA At the same time using multiple radio resources such frequency.

【0035】このように、車載移動局MSが狭ビーム通信部12との間で無線資源を複数使用して、大容量かつ高速な通信を行なう場合であっても、上記構成の無線通信基地局装置によれば、狭ビーム通信部12の狭ビーム外の領域では、広ビーム通信部11にて車載移動局MS [0035] In this manner, the radio resource with the in-vehicle mobile station MS narrow beam communication unit 12 using multiple, even when performing a large capacity and high-speed communication, the radio communication base station with the above configuration According to the device, the narrow beam outside the region of the narrow beam communication unit 12, the vehicle-mounted mobile station MS at the wide beam communication unit 11
が狭ビーム通信部12との間で用いた無線資源を再利用して、無線資源の利用効率を向上することができる。 By reusing radio resources used between the narrow beam communication unit 12, it is possible to improve the use efficiency of radio resources.

【0036】すなわち、第一に、非車載移動局PSの数が少ない場合には、狭ビーム内に非車載移動局PSが存在する確率が低いため、広ビーム通信部11と狭ビーム通信部12とで共通の無線資源を利用できる。 [0036] That is, First, if the number of off-board mobile station PS is small, the probability of off-board mobile station PS is present in a narrow beam in a low, wide beam communication unit 11 and a narrow beam communication unit 12 It can utilize a common radio resource in the.

【0037】また、第二に、同じ無線資源を広ビーム通信部11と狭ビーム通信部12で用いる場合、狭ビームを用いる車載移動局MSの通信が、広ビーム通信部11 Further, the second, when using the same radio resource with a wide beam communication unit 11 and a narrow beam communication unit 12, the communication of the onboard mobile station MS using a narrow beam, wide beam communication unit 11
からの広ビームの干渉を受けることが考えられるが、狭ビームは広ビームよりもエネルギー量を高められるため、上記干渉を抑制できる。 It is contemplated that interfered wide beam from, but narrow beam for enhanced energy amount than the wide beam, can suppress the interference.

【0038】さらに、第三に、狭ビームの水平方向のビーム角と垂直方向のビーム角を小さくし、さらにアンテナ位置を高く設置し、やや下方向に向けビームを形成することにより、図6に示すように図2の場合よりも狭い範囲にビームを形成できる。 [0038] Further, in the third, narrow the beam angle of the horizontal beam angle and vertical beam is reduced by further increasing install the antenna position, to form a slightly beam toward a downward direction, in FIG. 6 beam can be formed in a narrow range than the case of FIG. 2 as indicated. これによれば、広ビーム通信部11を通じて通信を行なう移動局との相互干渉をさらに抑制でき、無線資源の利用効率をさらに高めることができる。 According to this, the mutual interference between the mobile station communicating via the wide beam communication unit 11 can be further suppressed, thereby further increasing the utilization efficiency of radio resources.

【0039】尚、この発明は上記実施の形態に限定されるものではない。 [0039] The present invention is not limited to the above embodiment. 例えば、上記実施の形態では、車載移動局MSと非車載移動局PSとを区別するのに、移動局からの受信信号に含まれる識別情報を用いるようにしたが、移動局のハンドオーバの発生回数や移動速度から上記区別を行なうようにしてもよい。 For example, in the above embodiment, to distinguish the in-vehicle and mobile station MS and the off-board mobile station PS, has been to use the identification information included in the received signal from the mobile station, the number of occurrences of the handover of the mobile station from and movement speed may be performed above distinction.

【0040】尚、移動速度の検出方法としては、例えば、移動局の受信信号のフェージングピッチの変動より移動速度を求めたり、あるいはユーザが移動局を通じて報知する速度情報を検出する。 [0040] As a detection method of the moving speed is, for example, or determine the moving speed than the variation of the fading pitch of the received signal of the mobile station, or a user detects the speed information for notifying via the mobile station.

【0041】また、上記実施の形態では、移動局が車載移動局MSか非車載移動局PSかに応じて、広ビーム通信部11と狭ビーム通信部12とを使い分けるようにしたがこれに限定されるものではない。 [0041] In the above embodiment, the mobile station depending on whether the vehicle-mounted mobile station MS or a non-vehicle mobile station PS, limited to was to selectively use a wide beam communication unit 11 and a narrow beam communication unit 12 not intended to be.

【0042】例えば、予め特定のサービスに加入したユーザの移動局についてのみ、ユーザからの要求に応じて狭ビーム通信部12に切り換えて通信するようにする。 [0042] For example, the mobile station users only who subscribed to advance a particular service, so as to communicate by switching to the narrow beam communication unit 12 in response to a request from the user.
これによれば、ユーザの要望に応じた通信品質が提供できる。 According to this, it provides the communication quality corresponding to the demands of users.

【0043】また、無線伝搬路のパラメータ、例えば信号対雑音比(CNR)の劣化している移動局を、広ビーム通信部11から狭ビーム通信部12に切り換えて通信を行なうことにより、救済を図るようにしてもよい。 [0043] The parameter of the radio channel, for example signal-to-noise ratio the mobile station has deteriorated in (CNR), by performing communication by switching from the wide-beam communication unit 11 to the narrow beam communication unit 12, the relief it may be achieved.

【0044】さらには、無線伝搬路のパラメータとして、反射波の遅延量、いわゆる遅延スプレッドを監視する。 [0044] Further, as parameters of the radio propagation path, the delay amount of the reflected wave, to monitor the so-called delay spread. そして遅延スプレッドの大きい移動局との通信を、 And communication with the large mobile station delay spread,
広ビーム通信部11から狭ビーム通信部12に切り換える、あるいははじめから狭ビーム通信部1を割り当てることにより、救済を図るようにしてもよい。 Switched to the narrow beam communication unit 12 from the wide beam communication unit 11, or by assigning a narrow beam communication unit 1 from the beginning, it may be achieved relief. その他、この発明の要旨を逸脱しない範囲で種々の変形を施しても同様に実施可能であることはいうまでもない。 Needless to say, the variously modified may be practiced as well without departing from the scope of the invention.

【0045】 [0045]

【発明の効果】以上述べたように、この発明に係わる無線通信基地局装置は、第1のビームにて通信を行なう第1の通信手段と、第1のビームよりもビーム幅の広い第2のビームにて通信を行なう第2の通信手段とを備え、 As described above, according to the present invention, a radio communication base station apparatus according to the present invention comprises a first communication means for communicating with the first beam, wide beam width than the first beam second and a second communication means for communicating with beams,
移動通信装置が特定局である場合に、この特定局の方向に第1のビームを形成するように制御して上記特定局と第1の通信手段で通信するようにしている。 If the mobile communication device is a specific station, and to communicate with the specific station and the first communication means is controlled to form a first beam in the direction of this particular station.

【0046】したがって、この発明によれば、上記特定局のハンドオーバの発生回数を低減し、また第1の通信手段と第2の通信手段で無線資源を共有して無線資源の利用効率を向上可能な無線通信基地局装置を提供できる。 [0046] Thus, according to the present invention, by reducing the number of occurrences of the handover of the specific station, also share the radio resources can improve the use efficiency of radio resources in the first communication means and second communication means It can provide a radio communication base station apparatus.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】この発明に係わる無線通信基地局装置の一実施の形態の構成を示す回路ブロック図。 Figure 1 is a circuit block diagram showing the configuration of an embodiment of a wireless communication base station apparatus according to the present invention.

【図2】図1に示した無線通信基地局装置が形成する狭ビームと広ビームを示す図。 FIG. 2 shows a narrow beam and a wide beam radio communication base station apparatus forms shown in FIG.

【図3】図1に示した無線通信基地局装置が車載移動局MSの位置を求める処理を説明するための図。 3 is a diagram for radio communication base station apparatus will be described a process of obtaining the position of the in-vehicle mobile station MS shown in FIG.

【図4】図1に示した無線通信基地局装置の動作を説明するためのフローチャート。 FIG. 4 is a flowchart for explaining an operation of the radio communication base station apparatus shown in FIG.

【図5】図1に示した無線通信基地局装置の通信部の使い分けを説明するための図。 5 is a diagram for explaining the proper use of the communication unit of the wireless communication base station apparatus shown in FIG.

【図6】図1に示した無線通信基地局装置が形成する狭ビームと広ビームの他の形成例を示す図。 6 is a diagram showing another example of forming a narrow beam and a wide beam radio communication base station apparatus forms shown in FIG.

【図7】従来の大ゾーン方式の移動通信システムの通信エリアの構成を示す図。 7 is a diagram showing a configuration of a communication area of ​​the mobile communication system of a conventional large zone system.

【図8】従来の小ゾーン方式の移動通信システムの通信エリアの構成を示す図。 8 shows a configuration of a communication area of ​​the mobile communication system of the conventional small zone scheme.

【符号の説明】 DESCRIPTION OF SYMBOLS

BS…無線通信基地局装置 NB1,NB2…狭ビーム WB1,WB2,WB3…広ビーム MS…車載移動局 PS…非車載移動局 11…広ビーム通信部 12…狭ビーム通信部 20…狭ビーム方向制御部 30…ネットワークインターフェイス部 40…制御部 41…移動局判定手段 42…目標方向検出手段 BS ... radio communication base station apparatus NB1, NB2 ... narrow beam WB1, WB2, WB3 ... wide beam MS ... vehicle mobile station PS ... off-board mobile station 11 ... wide beam communication unit 12 ... narrow beam communication unit 20 ... narrow beam steering part 30 ... network interface unit 40 ... controller 41 ... mobile station determination unit 42 ... target direction detection means

Claims (9)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 無線回線を介して接続される移動通信装置を有線通信網に接続する無線通信基地局装置において、 空間に第1のビームを形成して、前記移動通信装置と無線回線を介して通信を行なう第1の通信手段と、 この第1の通信手段が形成する第1のビームよりも広いビーム幅の第2のビームを空間に形成し、前記移動通信装置と無線回線を介して通信を行なう第2の通信手段と、 前記移動通信装置から受信した信号から、前記移動通信装置が予め設定した特定局であるか否か識別する識別手段と、 この識別手段によって前記移動通信装置が前記特定局であると識別された場合に、この特定局より受信した信号から前記特定局の存在する方向を検出する方向検出手段と、 この方向検出手段にて求めた方向に、前記第1の通信手段が第 1. A radio communication base station apparatus connected to a wired communication network mobile communication device connected via a radio channel, to form a first beam in the space, through the mobile communication device and the radio channel a first communication means for communicating Te, a second beam of wide beam width than the first beam the first communication means formed is formed in the space, through the mobile communication device and the radio channel a second communication means for communicating, from the signal received from the mobile communication device, identifying means for identifying whether the mobile communication device is a specific station set in advance, said mobile communication device by the identification means If it is identified as the a particular station, and direction detection means for detecting the direction in which the presence of the specific station from a signal received from the particular station, in a direction determined by the direction detecting means, said first communication means is the first のビームを形成するように制御し、前記第1の通信手段が前記特定局と通信するように制御する通信制御手段とを具備することを特徴とする無線通信基地局装置。 The controlled so as to form a beam, said first communication means radio communication base station apparatus, wherein a comprises a communication control unit that controls to communicate with the specific station.
  2. 【請求項2】 前記識別手段は、前記移動通信装置から受信した信号に含まれる情報から、前記移動通信装置が予め設定した特定局であるか否か識別することを特徴とする請求項1に記載の無線通信基地局装置。 Wherein said identifying means, from the information contained in the signal received from the mobile communication device, in claim 1, characterized in that said mobile communication device to identify whether a particular station set in advance radio communication base station apparatus according.
  3. 【請求項3】 前記識別手段は、前記移動通信装置から受信した信号に、前記移動通信装置が車載移動局であることを示す情報がある場合に、前記移動通信装置が前記特定局であると識別することを特徴とする請求項1に記載の無線通信基地局装置。 Wherein said identification means, the signal received from the mobile communication device, wherein when the mobile communication device is information indicating that a vehicle mobile station, when the mobile communication device is in said particular station radio communication base station apparatus according to claim 1, wherein the identifying.
  4. 【請求項4】 前記識別手段は、前記移動通信装置から受信した信号に、前記移動通信装置からの所定の要求を示す情報がある場合に、前記移動通信装置が前記特定局であると識別することを特徴とする請求項1に記載の無線通信基地局装置。 Wherein said identification means, the signal received from the mobile communication device, when there is information indicating a predetermined request from said mobile communication device, identifying said mobile communication device is in the specific station radio communication base station apparatus according to claim 1, characterized in that.
  5. 【請求項5】 前記識別手段は、前記移動通信装置から受信した信号から、無線伝搬路の状態を監視し、この監視結果から前記移動通信装置が予め設定した特定局であるか否か識別することを特徴とする請求項1に記載の無線通信基地局装置。 Wherein said identification means, from a signal received from the mobile communication device monitors the state of the radio propagation path, identifying whether the mobile communication device from the monitoring result is a specific station that has been set in advance radio communication base station apparatus according to claim 1, characterized in that.
  6. 【請求項6】 前記識別手段は、前記移動通信装置から受信した信号から、信号対雑音比を監視し、この信号対雑音比が予め設定した値よりも劣化した場合に、前記移動通信装置を特定局であると識別することを特徴とする請求項5に記載の無線通信基地局装置。 Wherein said identification means, from a signal received from the mobile communication device, when monitoring the signal-to-noise ratio, the signal-to-noise ratio is degraded than a preset value, the mobile communication device radio communication base station apparatus according to claim 5, characterized in that identified as specific station.
  7. 【請求項7】 前記識別手段は、前記移動通信装置から受信した信号から、遅延スプレッドを監視し、この遅延スプレッドが予め設定した値以上となった場合に、前記移動通信装置を特定局であると識別することを特徴とする請求項5に記載の無線通信基地局装置。 Wherein said identification means, from a signal received from the mobile communication device, to monitor the delay spread, if the delay spread becomes a preset value or more, in certain station the mobile communication device radio communication base station apparatus according to claim 5, wherein the identifying the.
  8. 【請求項8】 前記識別手段は、前記移動通信装置から受信した信号から、フェージングピッチの変動を監視し、このフェージングピッチの変動が予め設定した値以上となった場合に、前記移動通信装置を特定局であると識別することを特徴とする請求項5に記載の無線通信基地局装置。 Wherein said identification means, from a signal received from the mobile communication device, when monitoring the fluctuation of the fading pitch, the variation of the fading pitch becomes a preset value or more, the mobile communication device radio communication base station apparatus according to claim 5, characterized in that identified as specific station.
  9. 【請求項9】 無線回線を介して接続される移動通信装置を有線通信網に接続する無線通信基地局装置において、 空間に第1のビームを形成して、前記移動通信装置と無線回線を介して通信を行なう第1の通信手段と、 この第1の通信手段が形成する第1のビームよりも広いビーム幅の第2のビームを空間に形成し、前記移動通信装置と無線回線を介して通信を行なう第2の通信手段と、 前記移動通信装置のハンドオーバの発生頻度を監視して、この発生頻度が予め設定した値以上となる移動通信装置を特定局として検出する特定局検出手段と、 この特定局検出手段によって検出された特定局より受信した信号から前記特定局の存在する方向を検出する方向検出手段と、 この方向検出手段にて求めた方向に、前記第1の通信手段が第1のビ 9. A radio communication base station apparatus connected to a wired communication network mobile communication device connected via a radio channel, to form a first beam in the space, through the mobile communication device and the radio channel a first communication means for communicating Te, a second beam of wide beam width than the first beam the first communication means formed is formed in the space, through the mobile communication device and the radio channel a second communication means for communicating, monitoring the frequency of handovers of the mobile communication device, a specific station detecting means for detecting a particular station the mobile communication device the frequency is a value or more set in advance, and direction detecting means for detecting a direction in which the presence of the specific station from the received signal from the identified stations detected by the particular station detection unit, in a direction determined by the direction detecting means, said first communication means is a 1 of the bi ムを形成するように制御し、前記第1の通信手段が前記特定局と通信するように制御する通信制御手段とを具備することを特徴とする無線通信基地局装置。 Controlled so as to form a beam, said first communication means radio communication base station apparatus, wherein a comprises a communication control unit that controls to communicate with the specific station.
JP35601798A 1998-12-15 1998-12-15 Radio communication base station equipment Pending JP2000184425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35601798A JP2000184425A (en) 1998-12-15 1998-12-15 Radio communication base station equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35601798A JP2000184425A (en) 1998-12-15 1998-12-15 Radio communication base station equipment

Publications (1)

Publication Number Publication Date
JP2000184425A true JP2000184425A (en) 2000-06-30

Family

ID=18446910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35601798A Pending JP2000184425A (en) 1998-12-15 1998-12-15 Radio communication base station equipment

Country Status (1)

Country Link
JP (1) JP2000184425A (en)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007151120A (en) * 2005-11-23 2007-06-14 Mitsubishi Electric Information Technology Centre Europa Bv Base station and terminal for wireless telecommunication network, method for managing at least one area covered by base station of wireless telecommunication network, method for reporting information by terminal of wireless telecommunication network, and computer program
JP2008547283A (en) * 2005-06-16 2008-12-25 クゥアルコム・インコーポレイテッドQualcomm Incorporated Sectorized an adaptive in a cellular system
US7916624B2 (en) 2000-09-13 2011-03-29 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
JP2013539933A (en) * 2010-09-09 2013-10-28 クアルコム,インコーポレイテッド Apparatus and method for enabling automotive module device indicator in a wireless communication system
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US8831607B2 (en) 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US8917654B2 (en) 2005-04-19 2014-12-23 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9307544B2 (en) 2005-04-19 2016-04-05 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9660776B2 (en) 2005-08-22 2017-05-23 Qualcomm Incorporated Method and apparatus for providing antenna diversity in a wireless communication system
KR101802076B1 (en) * 2016-06-17 2017-11-27 한국과학기술원 Method of supporting hand-over in ultra wide area wireless backhaul network, and apparatus performing the same
US10327259B2 (en) 2017-04-27 2019-06-18 Qualcomm Incorporated Efficient signaling over access channel

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8223627B2 (en) 2000-09-13 2012-07-17 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US10313069B2 (en) 2000-09-13 2019-06-04 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US7916624B2 (en) 2000-09-13 2011-03-29 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US7924699B2 (en) 2000-09-13 2011-04-12 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US7990844B2 (en) 2000-09-13 2011-08-02 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US7990843B2 (en) 2000-09-13 2011-08-02 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8014271B2 (en) 2000-09-13 2011-09-06 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US9130810B2 (en) 2000-09-13 2015-09-08 Qualcomm Incorporated OFDM communications methods and apparatus
US8098568B2 (en) 2000-09-13 2012-01-17 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8098569B2 (en) 2000-09-13 2012-01-17 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8295154B2 (en) 2000-09-13 2012-10-23 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8199634B2 (en) 2000-09-13 2012-06-12 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US8218425B2 (en) 2000-09-13 2012-07-10 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US9426012B2 (en) 2000-09-13 2016-08-23 Qualcomm Incorporated Signaling method in an OFDM multiple access system
US10194463B2 (en) 2004-07-21 2019-01-29 Qualcomm Incorporated Efficient signaling over access channel
US10237892B2 (en) 2004-07-21 2019-03-19 Qualcomm Incorporated Efficient signaling over access channel
US9148256B2 (en) 2004-07-21 2015-09-29 Qualcomm Incorporated Performance based rank prediction for MIMO design
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
US9246560B2 (en) 2005-03-10 2016-01-26 Qualcomm Incorporated Systems and methods for beamforming and rate control in a multi-input multi-output communication systems
US9154211B2 (en) 2005-03-11 2015-10-06 Qualcomm Incorporated Systems and methods for beamforming feedback in multi antenna communication systems
US8547951B2 (en) 2005-03-16 2013-10-01 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US8446892B2 (en) 2005-03-16 2013-05-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
US9461859B2 (en) 2005-03-17 2016-10-04 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9520972B2 (en) 2005-03-17 2016-12-13 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9143305B2 (en) 2005-03-17 2015-09-22 Qualcomm Incorporated Pilot signal transmission for an orthogonal frequency division wireless communication system
US9184870B2 (en) 2005-04-01 2015-11-10 Qualcomm Incorporated Systems and methods for control channel signaling
US8917654B2 (en) 2005-04-19 2014-12-23 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US9307544B2 (en) 2005-04-19 2016-04-05 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9408220B2 (en) 2005-04-19 2016-08-02 Qualcomm Incorporated Channel quality reporting for adaptive sectorization
US9036538B2 (en) 2005-04-19 2015-05-19 Qualcomm Incorporated Frequency hopping design for single carrier FDMA systems
US8611284B2 (en) 2005-05-31 2013-12-17 Qualcomm Incorporated Use of supplemental assignments to decrement resources
US8462859B2 (en) 2005-06-01 2013-06-11 Qualcomm Incorporated Sphere decoding apparatus
JP2008547283A (en) * 2005-06-16 2008-12-25 クゥアルコム・インコーポレイテッドQualcomm Incorporated Sectorized an adaptive in a cellular system
JP2012105295A (en) * 2005-06-16 2012-05-31 Qualcomm Inc Adaptive sectorization in cellular system
US8599945B2 (en) 2005-06-16 2013-12-03 Qualcomm Incorporated Robust rank prediction for a MIMO system
US9179319B2 (en) 2005-06-16 2015-11-03 Qualcomm Incorporated Adaptive sectorization in cellular systems
US9693339B2 (en) 2005-08-08 2017-06-27 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US8885628B2 (en) 2005-08-08 2014-11-11 Qualcomm Incorporated Code division multiplexing in a single-carrier frequency division multiple access system
US9240877B2 (en) 2005-08-22 2016-01-19 Qualcomm Incorporated Segment sensitive scheduling
US9209956B2 (en) 2005-08-22 2015-12-08 Qualcomm Incorporated Segment sensitive scheduling
US9246659B2 (en) 2005-08-22 2016-01-26 Qualcomm Incorporated Segment sensitive scheduling
US9860033B2 (en) 2005-08-22 2018-01-02 Qualcomm Incorporated Method and apparatus for antenna diversity in multi-input multi-output communication systems
US9660776B2 (en) 2005-08-22 2017-05-23 Qualcomm Incorporated Method and apparatus for providing antenna diversity in a wireless communication system
US8644292B2 (en) 2005-08-24 2014-02-04 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US8787347B2 (en) 2005-08-24 2014-07-22 Qualcomm Incorporated Varied transmission time intervals for wireless communication system
US9136974B2 (en) 2005-08-30 2015-09-15 Qualcomm Incorporated Precoding and SDMA support
US8477684B2 (en) 2005-10-27 2013-07-02 Qualcomm Incorporated Acknowledgement of control messages in a wireless communication system
US9210651B2 (en) 2005-10-27 2015-12-08 Qualcomm Incorporated Method and apparatus for bootstraping information in a communication system
US9172453B2 (en) 2005-10-27 2015-10-27 Qualcomm Incorporated Method and apparatus for pre-coding frequency division duplexing system
US8693405B2 (en) 2005-10-27 2014-04-08 Qualcomm Incorporated SDMA resource management
US9144060B2 (en) 2005-10-27 2015-09-22 Qualcomm Incorporated Resource allocation for shared signaling channels
US8045512B2 (en) 2005-10-27 2011-10-25 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US9088384B2 (en) 2005-10-27 2015-07-21 Qualcomm Incorporated Pilot symbol transmission in wireless communication systems
US8842619B2 (en) 2005-10-27 2014-09-23 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8582509B2 (en) 2005-10-27 2013-11-12 Qualcomm Incorporated Scalable frequency band operation in wireless communication systems
US8879511B2 (en) 2005-10-27 2014-11-04 Qualcomm Incorporated Assignment acknowledgement for a wireless communication system
US8565194B2 (en) 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
US9225416B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Varied signaling channels for a reverse link in a wireless communication system
US9225488B2 (en) 2005-10-27 2015-12-29 Qualcomm Incorporated Shared signaling channel
US8681764B2 (en) 2005-11-18 2014-03-25 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
US8582548B2 (en) 2005-11-18 2013-11-12 Qualcomm Incorporated Frequency division multiple access schemes for wireless communication
JP2007151120A (en) * 2005-11-23 2007-06-14 Mitsubishi Electric Information Technology Centre Europa Bv Base station and terminal for wireless telecommunication network, method for managing at least one area covered by base station of wireless telecommunication network, method for reporting information by terminal of wireless telecommunication network, and computer program
US8831607B2 (en) 2006-01-05 2014-09-09 Qualcomm Incorporated Reverse link other sector communication
JP2013539933A (en) * 2010-09-09 2013-10-28 クアルコム,インコーポレイテッド Apparatus and method for enabling automotive module device indicator in a wireless communication system
KR101541624B1 (en) * 2010-09-09 2015-08-03 퀄컴 인코포레이티드 Apparatus and method for enabling an automotive module device indicator in a wireless communication system
KR101802076B1 (en) * 2016-06-17 2017-11-27 한국과학기술원 Method of supporting hand-over in ultra wide area wireless backhaul network, and apparatus performing the same
US10327259B2 (en) 2017-04-27 2019-06-18 Qualcomm Incorporated Efficient signaling over access channel

Similar Documents

Publication Publication Date Title
US6026301A (en) Method for hard handoff in a CDMA cellular environment
US6266529B1 (en) Method for CDMA handoff in the vicinity of highly sectorized cells
US5890067A (en) Multi-beam antenna arrays for base stations in which the channel follows the mobile unit
FI103081B (en) The handoff mobile communication system
US5243598A (en) Microcell system in digital cellular
US4932049A (en) Cellular telephone system
CN1158889C (en) Method for communication of network users by remote-units
US5937019A (en) Method and apparatus for reliable intersystem handoff in a CDMA system
US5504936A (en) Microcells for digital cellular telephone systems
US6259915B1 (en) Multiple hyperband mobile and base stations
US6546058B1 (en) Method and apparatus for reducing the average transmit power of a base station
US6507741B1 (en) RF Repeater with delay to improve hard handoff performance
CN1117495C (en) Semi-soft handoff method that uses multiple common frequency
CN1077363C (en) Method for channel allocation in cellular communication system
EP0288904B1 (en) Microcellular communications system using macrodiversity
KR100624520B1 (en) System utilizing dynamic beam forming for wireless communication signals
US5432843A (en) Method of performing handoff in a cellular communication system
EP1397929B1 (en) Method and apparatus for orthogonal code management in cdma systems using smart antenna technology
EP1212918B1 (en) Inter-frequency measurement and handover for wireless communications
CN1109470C (en) Method for optimizing hard switching among mobile switching center in CDMA network
EP0943219B1 (en) Apparatus and method for controlling communications in a multi-network, wireless communication system
JP4073042B2 (en) Method and apparatus for inter-mobile switching center a handoff taking into account the service capabilities of candidate cells
US6501954B2 (en) Mobile radio communication system and radio circuit controlling method therefor
US6792276B1 (en) Hot spot with tailored range for extra frequency to minimize interference
JP4594325B2 (en) Mobile communication in a hierarchical cell structure