[go: up one dir, main page]

WO2008032560A1 - Système de communication mobile, station de base, station mobile et procédé de communication multiporteuse - Google Patents

Système de communication mobile, station de base, station mobile et procédé de communication multiporteuse Download PDF

Info

Publication number
WO2008032560A1
WO2008032560A1 PCT/JP2007/066630 JP2007066630W WO2008032560A1 WO 2008032560 A1 WO2008032560 A1 WO 2008032560A1 JP 2007066630 W JP2007066630 W JP 2007066630W WO 2008032560 A1 WO2008032560 A1 WO 2008032560A1
Authority
WO
WIPO (PCT)
Prior art keywords
subchannels
adjacent
station apparatus
mobile station
base station
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.)
Ceased
Application number
PCT/JP2007/066630
Other languages
English (en)
Japanese (ja)
Inventor
Hironobu Tanigawa
Yasuhiro Nakamura
Nobuaki Takamatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Publication of WO2008032560A1 publication Critical patent/WO2008032560A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • Mobile communication system base station apparatus, mobile station apparatus, and multicarrier communication method
  • the present invention relates to a mobile communication system, a base station apparatus, a mobile station apparatus, and a multicarrier communication method, and more particularly to a frequency division multiple access scheme that performs multicarrier transmission in each of a plurality of channels.
  • a multi-carrier transmission scheme represented by OFDM Orthogonal Frequency Division Multiplexing
  • OFDM Orthogonal Frequency Division Multiplexing
  • subcarriers a plurality of carriers having different frequencies.
  • Transmission method If a plurality of transmission channels (referred to as sub-channels) using the same transmission method are arranged in the frequency direction, frequency division multiple access with excellent transmission speed can be realized.
  • OFD MA Orthogonal Frequency Division Multiple Access
  • OFD MA Orthogonal Frequency Division Multiple Access
  • guard band having a predetermined width is provided between adjacent subchannels in the frequency direction.
  • Patent Document 1 discloses a technology that divides radio resources in a time direction in a base station subsystem and flexibly and dynamically controls allocation of radio resources to each user. It is disclosed.
  • Patent Document 1 JP-A-10-190621
  • the present invention has been made in view of the above-described conventional problems.
  • An object is to provide a multi-carrier communication method.
  • a mobile communication system includes a base station apparatus that performs communication by a frequency division multiple access method using a plurality of subchannels, and a plurality of mobile station apparatuses,
  • the base station apparatus includes channel allocating means for allocating at least two subchannels to the mobile station apparatuses as allocation channels, and the mobile station apparatuses communicate with the base station apparatus using the allocated channels.
  • a guard band having a predetermined width is provided between the subchannels adjacent to each other in the frequency direction, and the base station apparatus includes a frequency direction of the allocated channel.
  • the first adjacent channel selection means for selecting two or more subchannels adjacent to each other, and the two or more subchannels selected by the first adjacent channel selection means.
  • the base station apparatus includes non-adjacent channel selection means for selecting a subchannel that is not adjacent in the frequency direction to any other subchannel related to the allocation channel among the allocation channels, and the allocation And an adjacent empty channel selection means for selecting an empty subchannel adjacent in the frequency direction to any of the subchannels related to the channel, wherein the channel allocation means is a subchannel selected by the non-adjacent channel selection means.
  • any of the free subchannels selected by the adjacent free channel selection means may be allocated to each mobile station apparatus. In this way, it becomes possible to use more guard bands as communication bands, and the power S can further improve the data transmission speed.
  • the frequency division multiple access may be orthogonal frequency division multiple access.
  • the base station apparatus uses a frequency division multiple access scheme using a plurality of subchannels to perform communication with each of a plurality of mobile station apparatuses using at least two subchannels.
  • a guard device having a predetermined width is provided between the subchannels adjacent to each other in the frequency direction, and is a station device, out of the at least two subchannels used for communication with the mobile station devices.
  • a mobile station apparatus is a mobile station apparatus that communicates with a base station apparatus using at least two subchannels by a frequency division multiple access scheme using a plurality of subchannels.
  • a guard band having a predetermined width is provided between each of the subchannels adjacent in the frequency direction, and is adjacent in the frequency direction among the at least two subchannels used for communication with the base station apparatus.
  • the multicarrier communication method is a communication device that communicates with another communication device using at least two subchannels by a frequency division multiple access method using a plurality of subchannels.
  • the at least two communication channels used in communication with the other communication device, wherein a guard band having a predetermined width is provided between the subchannels adjacent in the frequency direction.
  • a guard band having a predetermined width is provided between the subchannels adjacent in the frequency direction.
  • the guard band is further used to perform communication with the other communication device.
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to an embodiment of the present invention.
  • FIG. 2 is a functional block diagram of a base station apparatus and a mobile station apparatus according to the embodiment of the present invention.
  • FIG. 3 is a functional block diagram of an adjacency determination unit.
  • FIG. 4 is a diagram showing an example of a time slot configuration based on TDMA / TDD and a subchannel configuration based on OFDMA.
  • FIG. 5 is a diagram showing an example of transmission / reception data related to only a subchannel and transmission / reception data related to a guard band added thereto.
  • FIG. 6 is a diagram showing an example of subchannel allocation status by a channel allocation unit.
  • FIG. 7 is a flowchart showing allocation channel change processing in the base station apparatus.
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to an embodiment of the present invention. As shown in the figure, the mobile communication system 1 includes a base station device 10 and a plurality of mobile station devices 12 (three here).
  • Each mobile station device 12 performs wireless communication with the base station device 10 and is, for example, a portable cellular phone or a portable information terminal.
  • TDD Time Division Duplex
  • the base station apparatus 10 includes an adaptive array antenna as will be described later, and a plurality of mobile station apparatuses 12 are used in the same time slot and the same carrier frequency by using the adaptive array antenna.
  • SDMA Space Division Multiple Access
  • FIG. 4 is a diagram illustrating an example of a time slot configuration (for one TDMA frame) by TDMA / TDD and a subchannel configuration by OF DMA.
  • the downlink (the radio transmission path from the base station apparatus 10 to the mobile station apparatus 12) and the uplink (the unspring transmission path from the mobile station apparatus 12 to the base station apparatus 10) are: Each consists of four timeslot forces.
  • Each time slot consists of 28 subchannels, one of which is used as a control channel (CCH: Control Channel) and the remaining 27 subchannels are used as communication channels (TCH: Traffic Channel).
  • a guard band (not shown) having a predetermined width is provided between adjacent subchannels in the frequency direction to prevent adjacent channel interference.
  • the base station apparatus 10 transmits at least a part of a total of 108 subchannels (27 subchannels x 4 slots) used as communication channels in each downlink and uplink to each mobile station. Assign to device 12. Specifically, as shown in FIG. 4, one anchor subchannel (ASCH: Anchor Sub Channel) and one or a plurality of extra subchannels (ESCH: Extra Sub Channel) are allocated to each mobile station apparatus 12.
  • ASCH Anchor Sub Channel
  • ESCH Extra Sub Channel
  • ASCH is a subchannel determined at the time of link establishment (at the start of communication) and notified to each mobile station apparatus 12 using CCH, and MAP information (108 bits) indicating one or a plurality of ESCHs. Bit strings) and other control information.
  • the ESCH is a subchannel that is determined after link establishment and is specified by MAP information notified to each mobile station apparatus 12 using the ASCH, and is mainly used for transmission / reception of communication data.
  • the downlink corresponding to the slot number Slots and uplink slots (DL # 1 and UL # 1, DL # 2 and UL # 2, ...) are assigned ASCH and ESCH symmetrically.
  • FIG. 2 is a functional block diagram of base station apparatus 10 and mobile station apparatus 12.
  • the base station apparatus 10 includes an adaptive array antenna 20, a receiving unit 22, an FFT (Fast Fourier Transform) unit 24, a composite unit 26, a control unit 28, a distributing unit 34, An IFFT (Inverse Fast Fourier Transform) unit 36 and a transmission unit 38 are included.
  • FFT Fast Fourier Transform
  • IFFT Inverse Fast Fourier Transform
  • the adaptive array antenna 20 is an array of a plurality of antennas, receives a radio signal transmitted from each mobile station apparatus 12 by each antenna, and outputs the received signal to the receiving unit 22.
  • a signal input from the transmission unit 38 is transmitted from each antenna. Reception and transmission are switched in a time division manner.
  • the receiving unit 22 includes a low-noise amplifier, a down converter, a space division processing unit, a time division processing unit, a symbol synchronization unit, and an A / D converter. From the received signal, each mobile station device 12 The sample value related to the baseband OFDM signal is separated and extracted. That is, the signal input from the adaptive array antenna 20 is subjected to space division multiplexing (SDMA), time division multiplexing (TDMA), and orthogonal frequency division multiplexing (OFDMA). After the signal is amplified and down-converted, space division processing and time division processing relating to weight control of the adaptive array antenna 20 are performed. Next, symbol synchronization and guard interval (GI) signal removal are performed on the separated signal to obtain a baseband OFDM signal. Then, after A / D converting the baseband OFDM signal, the sample value is output to the FFT unit 24.
  • SDMA space division multiplexing
  • TDMA time division multiplexing
  • OFDMA orthogonal frequency division multiplexing
  • GI guard
  • the FFT unit 24 performs an FFT on the sample value input from the receiving unit 22, and acquires each subcarrier component of the OFDM symbol.
  • Composite section 26 combines (combines) each subcarrier component of the OFDM symbol input from FFT section 24 for each predetermined number of subcarriers to generate a symbol string, and decodes the symbol string Thus, the received data from each mobile station apparatus 12 is acquired. Each reception data obtained in this way is output to a host device (not shown). [0027] Here, the process in which the composite unit 26 acquires the reception data from each mobile station device 12 will be described in more detail. The composite unit 26 combines the OFDM symbols for each subcarrier of one subchannel while referring to the subchannel allocation status by the channel allocation unit 32, and generates a symbol string related to each subchannel.
  • At least two subchannels (hereinafter referred to as “allocation channels”) assigned by the channel allocation unit 32 to each mobile station apparatus 12 are determined. If it is determined that there are two or more subchannels adjacent to each other in the frequency direction, OFDM is also applied to subcarriers in each guard band provided between each of the two or more subchannels. Symbols are combined to generate a symbol sequence for each guard band. Then, the generated symbol sequences are decoded, and in addition to the reception data related to each sub-channel, the reception data related to each guard band is acquired. In this case, each mobile station apparatus 12 transmits data using the subcarrier in each guard band.
  • FIG. 5 (a) is a diagram illustrating an example of transmission / reception data related to only a sub-channel.
  • a guard band is uniformly provided between the subchannels.
  • it is extremely rare for adjacent channel interference to occur, resulting in loss of communication bandwidth by the guard band! /.
  • FIG. 5 (b) is a diagram showing an example in which transmission / reception data related to guard bands is further added to transmission / reception data related to subchannels in the present embodiment.
  • the conventional communication system is provided between these subchannels. Because the guard band provided is used as the communication band, the transmission area (payload) can be increased by the extension shown in Fig. 5 (b) compared to the conventional case, and the data transmission speed can be improved with S .
  • the control unit 28 includes a reception unit 22, an FFT unit 24, a composite unit 26, a distribution unit 34, an IFFT unit 36, and a transmission unit.
  • the control unit 28 is configured mainly with a CPU (Central Processing Unit) and a memory, and the above functions are performed by the CPU executing various control programs stored in the memory. Realized.
  • a CPU Central Processing Unit
  • FIG. 3 is a functional block diagram of the adjacency determination unit 30.
  • the adjacency determination unit 30 includes an adjacent channel selection unit 40, a non-adjacent channel selection unit 42, and an adjacent empty channel selection unit 44. Whether or not there are two or more sub-channels adjacent to each other in the frequency direction among at least two sub-channels that are detrimental to the mobile station apparatus 12) and any other sub-channel related to the allocated channel among the allocated channels Whether there is a subchannel that is not adjacent in the frequency direction, and there is an empty subchannel (subchannel that is not used for communication) adjacent to one of the assigned subchannels in the frequency direction. Whether or not is judged.
  • channel allocating unit 32 selects one ASCH to be allocated to mobile station apparatus 12 from among 108 subchannels, and each mobile station apparatus In response to an ESCH allocation request from the device 12 or a terminal incoming call request from the network to which the base station device 10 is connected, one of the 107 subchannels excluding the ASCH is allocated to the mobile station device 12 1 or Select multiple ESCHs.
  • FIG. 6 is a diagram illustrating an example of an assignment state of subchannels (one ASCH and one or a plurality of ESCHs) by the channel assignment unit 32.
  • a, b, and c indicate subchannels assigned to the mobile station devices a, b, and c by the channel allocating unit 32, and the others indicate empty subchannels.
  • the channel allocation unit 32 allocates to each mobile station apparatus 12 according to a new link establishment request, a change in quality information related to communication with each mobile station apparatus 12, a subchannel allocation status, and the like. Change the channel accordingly.
  • the process of changing the allocated channel for each mobile station apparatus 12 according to the subchannel allocation status will be described later.
  • Adjacent channel selection section 40 selects two or more subchannels adjacent in the frequency direction among the allocation channels for each mobile station apparatus 12 according to the subchannel allocation status by channel allocation section 32. Is. For example, if the subchannel allocation status for mobile station device b is the status shown in FIG. 6 (a), adjacent channel selection unit 40 sets two channels surrounded by bold lines among the allocation channels for mobile station device b.
  • the non-adjacent channel selection unit 42 relates to each mobile station apparatus 12 according to the allocation channel among the allocation channels for each mobile station apparatus 12 according to the subchannel allocation status by the channel allocation unit 32.
  • a subchannel that is not adjacent to any other subchannel in the frequency direction (hereinafter referred to as “non-adjacent channel”) is selected. For example, if the subchannel allocation status for mobile station apparatus b is the status shown in FIG. 6 (a), non-adjacent channel selection unit 42 selects the same channel (b Select the five sub-channels surrounded by the bold lines shown in).
  • the adjacent vacant channel selection unit 44 depending on the subchannel allocation status by the channel allocating unit 32, vacant subchannels adjacent to one of the subchannels related to the allocated channel for each mobile station device 12 in the frequency direction ( In the following, “adjacent free channel” is selected. For example, when the subchannel allocation status related to mobile station apparatus b is the status shown in FIG. 6 (a), adjacent free channel selection unit 44 determines whether any of the subchannels related to the allocation channel for mobile station apparatus b Two empty subchannels surrounded by the thick line shown in Fig. 3 (c) are selected as adjacent empty subchannels in the frequency direction.
  • the free subchannels here are not only subchannels that are not used for communication at that time, but also immediately after subchannel allocation changes related to other mobile station apparatuses 12 ( For example, in the next TDMA frame, it may be a subchannel that is scheduled to be no longer used for communication.
  • the channel allocation unit 32 changes the allocation channel so that the allocation channel for each mobile station apparatus 12 is adjacent in the frequency direction as much as possible. Specifically, it is selected by the non-adjacent channel selection unit 42. Instead of the subchannel (non-adjacent channel) to be selected, one of the free subchannels (adjacent free subchannels) selected by the adjacent free channel selection unit 44 is allocated to each mobile station apparatus 12.
  • non-adjacent channel selection section 42 uses the thick line shown in Fig. 6 (b).
  • Five subchannels surrounded by are selected as non-adjacent channels.
  • the adjacent empty channel selection unit 44 selects two empty subchannels surrounded by bold lines shown in FIG.
  • the channel allocating unit 32 replaces the left subchannel among the five subchannels surrounded by the thick line shown in FIG. If each of the two empty subchannels surrounded by the bold line shown in Fig. 2 is assigned, the subchannel assignment status is as shown in Fig. 3 (d).
  • the number of subchannels adjacent in the frequency direction is increased by one set compared to the case of FIG.
  • more guard bands can be used as communication bands, and the data transmission rate can be further improved.
  • Distribution section 34 converts transmission data to each mobile station apparatus 12 input from a host apparatus (not shown) into a symbol string by symbol mapping, and separates the obtained symbol string into subcarrier components. , Output to IFFT section 36. Specifically, referring to the subchannel allocation status by the channel allocation unit 32, the symbol sequence obtained by symbol mapping for the transmission data to each mobile station apparatus 12 is allocated to the mobile station apparatus 12. Distribute to each subcarrier of the channel.
  • the symbol string is Further, it is also distributed to subcarriers in each guard band provided between each of the two or more subchannels.
  • each mobile station apparatus 12 receives data using subcarriers in each guard band.
  • the guard band conventionally provided between the subchannels is used as the communication band, so that the composite band is used. Similar to unit 26, the transmission area (payload) can be increased by the extension shown in Fig. 5 (b) compared to the conventional case, and the data transmission speed can be improved.
  • IFFT section 36 performs IFFT on each subcarrier component of the OFDM symbol input from distribution section 34, and sequentially outputs the obtained signals to transmission section 38.
  • the transmission unit 38 is configured to include a D / A converter, a time division multiplexing processing unit, a space division multiplexing processing unit, an up converter, and an amplifier. A-convert and obtain baseband OFDM signal. Next, a guard interval signal is added to the baseband OFDM signal to generate a signal that has been subjected to time division multiplexing processing and space division multiplexing processing relating to weight control of the adaptive array antenna 20. Then, the generated signal is up-converted to a radio signal, amplified to the transmission output level, and
  • an antenna 50 a receiving unit 52, an FFT unit 54, a composite unit 56, a control unit 58, a distributing unit 64, an IFFT unit 66, and a transmitting unit 68 are configured.
  • the receiving unit 52, FFT unit 54, combining unit 56, distributing unit 64, IF T unit 66, transmitting unit 68 are the receiving unit 22, FFT unit 24, combining unit 26, distributing unit 34, IFFT in the base station apparatus 10. Since it is almost the same as the unit 36 and the transmission unit 38 except for the processing related to space division multiplexing and time division multiplexing, detailed description is omitted here.
  • the control unit 58 includes a reception unit 52, an FFT unit 54, a composite unit 56, a distribution unit 64, an IFFT unit 66, and a transmission unit.
  • control unit 58 is configured with a CPU and a memory as a center, and the above functions are realized by the CPU executing various control programs stored in the memory.
  • the channel management unit 60 manages at least two subchannels (one ASCH and one or a plurality of ESCHs) allocated from the base station apparatus 10.
  • the adjacent channel selection unit 62 is adjacent to the frequency direction among the at least two subchannels allocated from the base station apparatus 10 according to the subchannel allocation status managed by the channel management unit 60. It is a functional block that selects two or more subchannels and corresponds to the adjacent channel selection unit 40 in the base station apparatus 10.
  • FIG. 7 is a flowchart showing a process of changing the allocated channel for one of the mobile station apparatuses 12 in communication according to the subchannel allocation status.
  • Base station apparatus 10 measures the reception quality of each subchannel assigned to mobile station apparatus 12 based on the received signal from mobile station apparatus 12. Then, depending on whether or not the reception quality is equal to or higher than the predetermined quality, it is determined whether or not the allocation channel for the mobile station apparatus 12 can be changed (S100).
  • the non-adjacent channel selection unit 42 When the reception quality is equal to or higher than the predetermined quality in S100, the non-adjacent channel selection unit 42, among the allocation channels for the mobile station device 12, according to the subchannel allocation status by the channel allocation unit 32, A subchannel (non-adjacent channel) that is not adjacent in the frequency direction to any other subchannel related to the assigned channel is selected (S102). If the reception quality is less than the predetermined quality in S100, the base station device 10 determines that the channel to be assigned to the mobile station device 12 cannot be changed, and does not change the assigned channel! /, .
  • the adjacent empty channel selection unit 44 relates to the allocation channel for the mobile station apparatus 12 according to the subchannel allocation status by the channel allocation unit 32.
  • An empty subchannel (adjacent empty channel) adjacent to any subchannel in the frequency direction is selected (S104). If a non-adjacent channel is not selected in S102, base station apparatus 10 does not change the assigned channel.
  • channel allocating section 32 replaces the non-adjacent channel selected in S102 with any of the adjacent free channels in the mobile station apparatus 12 (S106). Then, MAP information, which is a 108-bit bit string indicating a new allocation channel, is generated and transmitted to the mobile station apparatus 12. (S108). If an adjacent free channel is not selected in S104, the non-adjacent channel selected in S102 cannot be adjacent to any other assigned channel in the frequency direction, so the base station apparatus 10 changes the assigned channel. Not performed.
  • the embodiment when there are two or more subchannels adjacent to each other in the frequency direction among at least two subchannels used for communication, they are provided between the subchannels.
  • the use of the guard band is also used for communication, so the frequency utilization efficiency can be improved and the data transmission speed can be improved.
  • the present invention is not limited to the above-described embodiment, and various modifications can be made.
  • the power of applying the present invention to a mobile communication system using both SDMA, TDMA, and OFDMA is arranged in the frequency direction to It is widely applicable to mobile communication systems that realize connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des bandes de garde ayant chacune une largeur prédéterminée sont respectivement formées entre des sous-canaux adjacents les uns aux autres dans la direction de la fréquence. Une station de base (10) comprend une partie de détermination d'adjacence (30) qui sélectionne, parmi les sous-canaux alloués aux stations mobiles (12) (canaux alloués), deux ou plusieurs sous-canaux adjacents les uns aux autres dans la direction de la fréquence. La station de base (10) utilise en outre les bandes de garde formées respectivement entre les sous-canaux sélectionnés par l'élément de détermination d'adjacence (30) pour communiquer avec les stations mobiles (12). Les stations mobiles (12) comprennent chacune une partie de sélection de canaux adjacents (62) qui sélectionne, parmi les canaux alloués, deux ou plusieurs sous-canaux adjacents les uns aux autres dans la direction de la fréquence. Les stations mobiles (12) utilisent en outre les bandes de garde formées respectivement entre les sous-canaux sélectionnés par la partie de sélection de canaux adjacents (62) pour communiquer avec la station de base (10).
PCT/JP2007/066630 2006-09-13 2007-08-28 Système de communication mobile, station de base, station mobile et procédé de communication multiporteuse Ceased WO2008032560A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006247539A JP4378368B2 (ja) 2006-09-13 2006-09-13 移動体通信システム、基地局装置、移動局装置、およびマルチキャリア通信方法
JP2006-247539 2006-09-13

Publications (1)

Publication Number Publication Date
WO2008032560A1 true WO2008032560A1 (fr) 2008-03-20

Family

ID=39183624

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/066630 Ceased WO2008032560A1 (fr) 2006-09-13 2007-08-28 Système de communication mobile, station de base, station mobile et procédé de communication multiporteuse

Country Status (2)

Country Link
JP (1) JP4378368B2 (fr)
WO (1) WO2008032560A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9729304B2 (en) 2012-09-27 2017-08-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and devices for radio communication configuration

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8249029B2 (en) * 2008-03-28 2012-08-21 Qualcomm Incorporated Low reuse preamble for a wireless communication network
JP4654267B2 (ja) * 2008-05-27 2011-03-16 京セラ株式会社 基地局および無線通信方法
US8199633B2 (en) 2008-05-27 2012-06-12 Kyocera Corporation Base station and wireless communication method
EP2141878A1 (fr) * 2008-07-05 2010-01-06 ST Wireless SA Procédé et appareil pour la diversité du spectre en OFDM en utilisant les bandes de garde
CN101689872B (zh) 2008-07-07 2012-11-28 联发科技股份有限公司 通信装置、收发数据的方法和接收数据的方法
JP4584330B2 (ja) * 2008-11-26 2010-11-17 京セラ株式会社 基地局、および、その基地局でのサブバースト領域の配置方法
KR20110089442A (ko) 2008-11-26 2011-08-08 쿄세라 코포레이션 기지국, 기지국에서의 서브 버스트 영역의 배치 방법, 통신 대상 단말 결정 방법 및 다운링크 버스트 영역의 할당 방법
CN101873697A (zh) * 2009-04-25 2010-10-27 中兴通讯股份有限公司 资源映射方法
US9209933B2 (en) * 2009-06-11 2015-12-08 Qualcomm Incorporated Method and apparatus for dispatching a channel quality indicator feedback in multicarrier system
PL3393053T3 (pl) * 2010-03-12 2022-09-26 Electronics And Telecommunications Research Institute Sposób i urządzenie do nadawania i odbierania danych w systemie MIMO
JP2011109679A (ja) * 2010-12-15 2011-06-02 Kyocera Corp 基地局および無線通信方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09205411A (ja) * 1996-01-29 1997-08-05 Sony Corp 多元接続方法及び装置
JPH1127231A (ja) * 1997-06-30 1999-01-29 Toshiba Corp 無線通信システム
JP2000115834A (ja) * 1998-10-05 2000-04-21 Sony Corp 通信方法、基地局装置及び通信端末装置
JP2002319917A (ja) * 2001-04-24 2002-10-31 Victor Co Of Japan Ltd マルチキャリア信号の生成方法、マルチキャリア信号の復号方法、マルチキャリア信号生成装置、及びマルチキャリア信号復号装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09205411A (ja) * 1996-01-29 1997-08-05 Sony Corp 多元接続方法及び装置
JPH1127231A (ja) * 1997-06-30 1999-01-29 Toshiba Corp 無線通信システム
JP2000115834A (ja) * 1998-10-05 2000-04-21 Sony Corp 通信方法、基地局装置及び通信端末装置
JP2002319917A (ja) * 2001-04-24 2002-10-31 Victor Co Of Japan Ltd マルチキャリア信号の生成方法、マルチキャリア信号の復号方法、マルチキャリア信号生成装置、及びマルチキャリア信号復号装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9729304B2 (en) 2012-09-27 2017-08-08 Telefonaktiebolaget Lm Ericsson (Publ) Methods and devices for radio communication configuration

Also Published As

Publication number Publication date
JP4378368B2 (ja) 2009-12-02
JP2008072275A (ja) 2008-03-27

Similar Documents

Publication Publication Date Title
WO2008032560A1 (fr) Système de communication mobile, station de base, station mobile et procédé de communication multiporteuse
KR101265632B1 (ko) 참조 신호 전송, 참조 신호 전송 패턴 설정, 자원 블록설정 및 할당을 위한 방법 및 장치
CA2556672C (fr) Procede d'attribution de sous-canal dans un systeme de communication cellulaire a acces multiple par repartition orthogonale de la frequence
KR100754673B1 (ko) 통신 시스템에서 동적 하이브리드 다중 접속 제공 장치 및방법
KR101021803B1 (ko) 기지국장치와 유저장치 및 통신제어방법
KR100961744B1 (ko) 광대역 무선통신시스템에서 상향링크 스케줄링 장치 및방법
KR101599844B1 (ko) 다중접속영역 다중화 방법
JP2010541301A (ja) Ｍｉｍｏネットワークにおけるアップリンク用ｏｆｄｍａフレーム構造
JPWO2004077712A1 (ja) 無線通信システム及び無線通信方法
US8699427B2 (en) OFDMA communication system and communication method
KR100886549B1 (ko) 직교 주파수 분할 다중 접속 시스템에서 안테나-간 간섭억제를 위한 서브채널 할당 장치 및 방법
KR101403822B1 (ko) 직교 주파수 분할 다중 방식의 분산 안테나 시스템에서무선 자원 할당 방법 및 장치
WO2007128199A1 (fr) Procédé de multiplexage d'ondes pilotes, appareil et système de communication radio de plusieurs antennes
CN101518143B (zh) 无线通信系统、无线通信终端、基站及无线通信方法
US20100020754A1 (en) OFDMA Communication System and Communication Method
US8675574B2 (en) OFDMA communication system and communication method
WO2010054693A1 (fr) Commande de ressources de communication cellulaire
US20080205260A1 (en) System and method for transmitting data bursts in communication systems
JP4463264B2 (ja) Ｏｆｄｍａ方式の通信システム及び通信方法
JP2004254335A (ja) 無線基地局、無線端末
US8483696B2 (en) Mobile communications system, mobile station device, base station device and channel allocation method
KR20100004034A (ko) 무선통신시스템에서 부채널 구성 장치 및 방법
CN100514947C (zh) 一种通道校正的方法和系统
JP5491034B2 (ja) 基地局装置およびチャネル通知方法
JP5089763B2 (ja) 通信方法およびそれを利用した基地局装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07806121

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07806121

Country of ref document: EP

Kind code of ref document: A1