[go: up one dir, main page]

WO2018016060A1 - Appareil de communication sans fil, et système de communication sans fil - Google Patents

Appareil de communication sans fil, et système de communication sans fil Download PDF

Info

Publication number
WO2018016060A1
WO2018016060A1 PCT/JP2016/071466 JP2016071466W WO2018016060A1 WO 2018016060 A1 WO2018016060 A1 WO 2018016060A1 JP 2016071466 W JP2016071466 W JP 2016071466W WO 2018016060 A1 WO2018016060 A1 WO 2018016060A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal station
agc
terminal
station
gain value
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/JP2016/071466
Other languages
English (en)
Japanese (ja)
Inventor
慶 柳澤
雅之 石▲ざき▼
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.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
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 Hitachi Kokusai Electric Inc filed Critical Hitachi Kokusai Electric Inc
Priority to JP2018528173A priority Critical patent/JP6498846B2/ja
Priority to PCT/JP2016/071466 priority patent/WO2018016060A1/fr
Publication of WO2018016060A1 publication Critical patent/WO2018016060A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to a wireless communication device and a wireless communication system, and more particularly to an OFDMA wireless communication device and a wireless communication system.
  • FIG. 5 shows a radio reception block diagram of a general radio communication apparatus 110 (base station side) of the OFDMA system.
  • FIG. 6 shows a general frame configuration diagram of the OFDMA system.
  • the wireless communication device 110 includes an antenna 115, an RF unit 120, and a baseband unit 130.
  • the RF unit 120 includes an LPF 121 (low pass filter), an ATT / AMP 122, and a BPF 123 (band pass filter).
  • the baseband unit 130 includes an ADC 132, a received power calculation unit 136, and an AGC gain calculation unit 135.
  • the AGC gain calculation unit 135 calculates an AGC gain value from the received power in the data burst (Data Burst) area of the frame, and transmits the AGC gain value to the ATT / AMP 122 of the RF unit 120.
  • the ATT / AMP 122 controls the reception gain based on the AGC gain value.
  • N connection In the state of 1: N connection, a plurality of Data ⁇ ⁇ ⁇ ⁇ Bursts are allocated in the frame as shown in FIG.
  • the distance between the base station and each terminal station varies, and a difference occurs in the received power from the terminal station for the base station, so that the reception AGC of the base station cannot be appropriately controlled.
  • the reception AGC gain value of the base station (BS) is fixed, and the terminal station performs transmission power control.
  • reception AGC gain value is a fixed value
  • Reception AGC full gain The terminal station connected at the cell edge (near the boundary of the communication cell) at the time of 1: 1 connection is connectable and does not change as a long-distance connectable area.
  • the transmission wave from the terminal station directly below the base station becomes over-input and connection is impossible. That is, the short-distance connectable area is narrowed.
  • the gain width of the reception AGC is generally larger than the transmission power control gain width, so that the connectable area at a short distance is narrowed when the reception AGC gain is fixed.
  • the present invention has been made in view of such a situation, and aims to solve the above problems.
  • the present invention is a wireless communication system in which one base station and a plurality of terminal stations can be connected 1: N (N is a natural number of 2 or more) by the OFDMA method, and the wireless communication apparatus of the base station includes the terminal A control unit is provided that assigns a frame to each station and sets a gain value of a reception AGC when receiving a signal from the terminal station in units of frames. Further, the control unit waits for the received AGC at full gain in the Initial Ranging area, and sets the received AGC for the Initial Ranging Code from the unconnected terminal station regardless of the received power from the connected terminal station. You may go.
  • the reception AGC may be performed on the Periodic Ranging Code with the frame uniquely assigned to the terminal station.
  • the control unit may be configured such that, in a state where a plurality of terminal stations are connected to the base station, the maximum width of the gain value of the reception AGC for each of the connected terminal stations is that of the terminal station.
  • the maximum value among the terminal stations to which the gain value of the reception AGC is connected is set as a fixed value in all the frames, and is originally set to each terminal station The difference between the gain value and the fixed value of the expected reception AGC may be reflected in the transmission power control value of the terminal station.
  • the control unit allocates the frame for each terminal station for the terminal station having a close gain value of the set reception AGC among the plurality of terminal stations connected to the base station. Instead, the same frame may be divided and assigned, and the same gain value of the reception AGC may be set. Further, the control unit may perform control such that the timing of a frame allocated to the connected terminal station is defined in burst data and transmitted.
  • the present invention is a wireless communication apparatus that can connect 1: N (N is a natural number of 2 or more) as a base station with a plurality of terminal stations using the OFDMA method, and assigns a frame to each terminal station.
  • the control part which sets the gain value of receiving AGC at the time of receiving the signal of (2) per frame is provided.
  • the control unit waits for the received AGC at full gain in the Initial Ranging area, and performs reception AGC for the Initial Ranging Code from the unconnected terminal station regardless of the received power from the connected terminal station. May be.
  • the reception AGC may be performed on the Periodic Ranging Code with the frame uniquely assigned to the terminal station.
  • the control unit may be configured such that, in a state where a plurality of terminal stations are connected to the base station, the maximum width of the gain value of the reception AGC for each of the connected terminal stations is that of the terminal station. If it is smaller than the transmission power control dynamic range, the maximum value among the terminal stations to which the gain value of the reception AGC is connected is set as a fixed value in all frames, and should be originally set for each terminal station. The difference between the gain value and the fixed value of the received AGC may be reflected in the transmission power control value of the terminal station.
  • 1 is a block diagram of an OFDMA wireless communication system according to an embodiment. It is the figure which showed the example to which the terminal station is allocated for every flame
  • FIG. 1 is a block diagram of an OFDMA wireless communication system 1 according to the present embodiment, focusing on the receiving unit block of the wireless communication device 10.
  • 2 and 3 are diagrams illustrating an example of a frame configuration by the wireless communication system 1.
  • FIG. 2 shows an example in which a terminal station 90 is assigned for each frame.
  • the first terminal station 91 is assigned to the first frame FL1
  • the second terminal station 92 is assigned to the second frame FL2
  • the third terminal station 93 is assigned to the third frame FL3.
  • FIG. 3 shows an example in which the first terminal station 91 is assigned to the data burst area of all frames.
  • the wireless communication system 1 includes a wireless communication device 10 as a base station and a plurality of terminal stations, and performs 1: N connection.
  • a wireless communication device 10 as a base station and a plurality of terminal stations, and performs 1: N connection.
  • N connection a description will be given by taking an example of 1: 3 connection of three terminal stations 90 (first terminal station 91, second terminal station 92, and third terminal station 93).
  • a data burst (Data Burst) area of one frame is divided and assigned to each terminal station.
  • a technique for allocating the terminal station 90 is introduced for each frame, that is, in a time division manner.
  • the wireless communication device 10 notifies the terminal station 90 of the frame number assigned to each terminal station 90, more specifically, the timing of periodic ranging described later, using the DL burst region.
  • the frame includes a DL subframe transmitted from the wireless communication apparatus 10 toward the terminal station 90 and a UL subframe received from the terminal station 90 by the wireless communication apparatus 10.
  • ranging for synchronizing signal output and signal timing is performed using UL subframes.
  • An initial ranging area is provided at the head of the UL subframe. This initial ranging signal is performed when the mobile terminal enters the network.
  • a periodic ranging (Periodic Ranging) region periodically performed by the terminal station 90 in a connected state and a bandwidth request ranging (BR Ranging) region for requesting a bandwidth are provided, followed by a UL data burst.
  • An area is provided.
  • a symbol pattern called “Preamble” is assigned to the first symbol.
  • the terminal station 90 scans the frequency, and after the terminal station 90 performs a search for the surrounding base station, that is, the radio communication device 10, the preamble signal at the head of this DL subframe is transmitted. Acquisition and establishment of downlink synchronization with the wireless communication apparatus 10 are performed. By using this preamble signal, signal quality such as received signal strength can be measured.
  • the frame control header information (FCH) includes the allocation status (modulation method, burst length, etc.) of data bursts transmitted after the frame control header.
  • mapping information includes information commonly broadcast to all areas covered by the base station device, such as base station information periodically transmitted from the radio communication device 10 serving as the base station device.
  • the terminal station 90 determines whether or not access to the network is possible by acquiring the broadcast information.
  • DL burst data is transmitted following the mapping information.
  • the wireless communication device 10 includes an antenna 15, an RF unit 20, and a baseband unit 30.
  • the RF unit 20 includes a BPF 23, an ATT / AMP 22, and an LPF 21 from the antenna 15 side.
  • a signal (DL subframe) received by the antenna 15 is output to the baseband unit 30 via the BPF 23, the ATT / AMP 22, and the LPF 21.
  • the signal (UL subframe) generated by the baseband unit 30 is transmitted from the antenna 15 via the LPF 21, the ATT / AMP 22, and the BPF 23.
  • the reception function will be mainly described.
  • the ATT / AMP 22 acquires an AGC gain value from the control unit 31 to be described later, and controls the reception gain for each frame based on the value. As a result, an area similar to that at the time of 1: 1 connection can be secured for each terminal station 90.
  • the baseband unit 30 includes a control unit 31, an ADC 32, a SW 33, a received power calculation unit 34, an AGC gain value storage memory 50, and an AGC gain value storage memory 50.
  • the control unit 31 performs overall control of each component, and performs a selection operation of the SW 33, an AGC gain value instruction to the ATT / AMP 22, and an AGC gain value storage instruction to the AGC gain value storage memory 50.
  • the ADC 32 converts the analog signal output from the RF unit 20 into a digital signal, and outputs the digital signal to the received power calculation unit 34 via the SW 33.
  • the received power calculation unit 34 includes an Initial Ranging Symbol unit 36, a Periodic / BR Ranging Symbol unit 37, and a Data Burst unit 38.
  • the Initial Ranging Symbol unit 36 refers to the initial ranging area of the DL subframe and performs the above initial ranging.
  • the Periodic / BR Ranging Symbol unit 37 performs the above-described periodic initial ranging and bandwidth request ranging.
  • the Data Burst unit 38 refers to the data burst area of the DL subframe and identifies the received power.
  • the AGC gain calculation unit 35 determines an AGC gain value used for reception gain control in the ATT / AMP 22 for each frame and notifies the control unit 31 of the AGC gain value.
  • the AGC gain value storage memory 50 includes a first terminal station area 51, a second terminal station area 52, The third terminal station area 53, the fourth terminal station area 54,... Are acquired from the control unit 31 and stored in the AGC gain value corresponding to the terminal station 90 to be connected.
  • the AGC gain value used for reception of the first terminal station 91 is stored in the first terminal station area 51.
  • the second terminal station area 52 stores an AGC gain value used for reception by the second terminal station 92. Further, when a connection with a fourth terminal station (not shown) is newly established, an AGC gain value used for reception of the fourth terminal station is stored.
  • Step 1A The first terminal station 90 (for example, the first terminal station 91) is connected by performing AGC based on the received power in the Data Burst section as in the case of 1: 1 connection.
  • the AGC gain value is stored in the AGC gain value storage memory 50 (first terminal station area 51).
  • Step 2A Wait for reception AGC in the initial ranging area with full gain for the terminal station 90 connected to the second and subsequent units.
  • Step 3A The newly entering terminal station 90 (for example, the second terminal station 92) continuously transmits the initial ranging code.
  • the radio communication apparatus 10 serving as a base station controls the AGC gain value to an appropriate value, and uses this value as the AGC gain value of the terminal station 90 connected to the second unit as the AGC gain value storage memory 50 (second terminal station). Storage area 52).
  • the control unit 31 feeds back the AGC gain value calculated in step 3 to the ATT / AMP 22 of the RF unit 20 in the periodic ranging region and data burst region of the second frame FL2. Thereafter, the AGC gain is calculated from the received power in the UL data burst 2 region of the second frame FL2.
  • Step 5A For connection with the third and subsequent terminal stations 90, the same processing as in Step 3 and Step 4 is performed.
  • the periodic ranging code (Periodic Ranging Code) is transmitted.
  • the wireless communication device 10 controls the AGC gains for the second terminal station 92 and the third terminal station 93 to appropriate values from these periodic ranging codes.
  • Step 1B The second terminal station 92 and the third terminal station 93 transmit a band request ranging code (BR Ranging Code) in the periodic / band request ranging area in the frame number assigned to the own station. Make a request. Since the AGC value is controlled to an appropriate value by the periodic ranging code, the wireless communication device 10 as the base station can receive the band request ranging code without any problem.
  • Step 2B The radio communication apparatus 10 allocates the data burst area of the second frame FL2 to the second terminal station 92 and the data burst area of the third frame FL3 to the third terminal station 93.
  • Step 3B The radio communication apparatus 10 feeds back the AGC gain value calculated from the periodic / band request ranging area of the second frame FL2 to the ATT / AMP 22 in the data burst area of the second frame FL2. Thereafter, reception control for the second terminal station 92 is performed using the AGC gain value calculated from the data burst area.
  • Step 4B The radio communication apparatus 10 feeds back the AGC gain value calculated from the periodic / band request ranging area of the third frame FL3 to the ATT / AMP 22 in the data burst area of the third frame FL3. Thereafter, reception control for the third terminal station 93 is performed using the AGC gain value calculated from the data burst area.
  • the AGC gain is not limited to the operation that is feedback-controlled by the automatic control as described above (referred to as “normal operation” for convenience), but the operation that is fixed to the base station reception AGC under a certain condition (for convenience) (Referred to as “AGC fixed operation”).
  • the control unit 31 of the wireless communication device 10 determines from the reception AGC gain for each terminal station 90 that the communication quality is maintained by the base station reception AGC fixing and the terminal station power control, that is, each When the maximum width of the received AGC gain value for the terminal station 90 is smaller than the transmission power control dynamic range, the received AGC gain value is fixed to the maximum value among the received AGC gain values of the plurality of connected terminal stations 90, and the difference is set to another terminal.
  • transmission power control at the station 90 switching is made to intra-frame multiple burst allocation. This makes it possible to allocate bandwidth efficiently.
  • FIG. 4 shows a control example of such AGC gain and transmission power gain.
  • the AGC gain for the first terminal station 91 is 20 dB
  • the AGC gain for the second terminal station 92 is ⁇ 5 dB
  • the AGC gain for the third terminal station 93 is ⁇ 10 dB on the receiving side during normal operation.
  • the difference between the maximum and minimum is 30 dB.
  • all transmission power gains for the first terminal station 91 to the third terminal station 93 are 0 dB.
  • the AGC fixed operation when the dynamic range of the ATT / AMP 22 is 30 dB or more, as shown in the figure, as the AGC fixed operation, all the AGC gains for the first terminal station 91 to the third terminal station 93 are fixed to the maximum value of 20 dB.
  • the transmission power gain is set to a value reflecting the difference in the base station reception AGC gain value during normal operation. Specifically, the transmission power gain for the first terminal station 91 is set to 0 dB, the transmission power gain for the second terminal station 92 is set to ⁇ 25 dB, and the transmission power gain for the third terminal station 93 is set to ⁇ 30 dB. Note that when the AGC fixed operation becomes difficult due to the movement of the terminal station 90 or the change in the reception environment, the control unit 31 returns to the normal operation. By using such an operation method, both power saving and ensuring communication quality can be achieved.
  • the same frame is allocated to the terminal station 90 having the close AGC gain value and the same AGC gain value is used. May be. For example, a situation is assumed in which the AGC gain for the first terminal station 91 is 10 dB, the AGC gain for the second terminal station 92 is 9 dB, and the AGC gain for the third terminal station 93 is ⁇ 15 dB. At this time, the AGC gains of the first terminal station 91 and the second terminal station 92 are close to each other. Therefore, when the control unit 31 determines that the bandwidth requirements of the first terminal station 91 and the second terminal station 92 are relatively small and the two bandwidths are combined, the same AGC gain value is obtained.
  • the data burst area is divided into two areas of the first terminal station 91 and the second terminal station 92 as shown in FIG.
  • the AGC gain value is different from the others, one frame is allocated. By performing such operations, the bandwidth can be effectively utilized.
  • Wireless communication apparatus 15 Antenna 20 RF part 21 LPF 22 ATT / AMP 23 BPF 30 Baseband unit 31 Control unit 32 ADC 33 SW 34 Received power calculation unit 35 AGC gain calculation unit 36 Initial Ranging Symbol unit 37 Periodic / BR Ranging Symbol unit 38 Data Burst unit 50 AGC gain value storage memory 51 First terminal station area 52 Second terminal station area 53 Third terminal Station area 54 Fourth terminal station area

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

La présente invention supprime une diminution dans une zone de communication lorsqu'une station de base et une pluralité de stations terminales réalisent une connexion 1:N selon un schéma OFDMA. Un appareil de communication sans fil (10) d'une station de base et une pluralité de stations terminales (90) exécutent une connexion 1:N selon un schéma OFDMA. Pour la première station terminale (90), une CAG est réalisée pour une connexion sur la base d'une puissance de réception pendant un intervalle de salve de données de la même façon que durant une connexion 1:1. Pour la deuxième station terminale, et les suivantes, (90) devant être connectées, la CAG de réception dans une zone de télémétrie initiale est réglée pour un gain total pendant un état d'attente. Une station terminale (90) nouvellement participante émet successivement un code de télémétrie initial. L'appareil de communication sans fil (10) contrôle la valeur de gain AGC à une valeur appropriée et stocke, dans une mémoire de stockage de valeur de gain AGC (50), une valeur de gain AGC de la deuxième station terminale (90) connectée. Une unité de commande (31) renvoie, à un ATT/AMP (22) d'une unité RF (20), une valeur de gain AGC calculée dans la zone de télémétrie périodique et la zone de salve de données d'une seconde trame FL2.
PCT/JP2016/071466 2016-07-22 2016-07-22 Appareil de communication sans fil, et système de communication sans fil Ceased WO2018016060A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018528173A JP6498846B2 (ja) 2016-07-22 2016-07-22 無線通信装置および無線通信システム
PCT/JP2016/071466 WO2018016060A1 (fr) 2016-07-22 2016-07-22 Appareil de communication sans fil, et système de communication sans fil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/071466 WO2018016060A1 (fr) 2016-07-22 2016-07-22 Appareil de communication sans fil, et système de communication sans fil

Publications (1)

Publication Number Publication Date
WO2018016060A1 true WO2018016060A1 (fr) 2018-01-25

Family

ID=60992412

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/071466 Ceased WO2018016060A1 (fr) 2016-07-22 2016-07-22 Appareil de communication sans fil, et système de communication sans fil

Country Status (2)

Country Link
JP (1) JP6498846B2 (fr)
WO (1) WO2018016060A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109936869A (zh) * 2019-01-24 2019-06-25 四川安迪科技实业有限公司 一种用于突发通信的全数字开环自动增益控制方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008187488A (ja) * 2007-01-30 2008-08-14 Kyocera Corp 基地局装置及び通信方法
WO2010007666A1 (fr) * 2008-07-15 2010-01-21 富士通株式会社 Dispositif de communication sans fil et procédé de communication sans fil
JP2013251914A (ja) * 2013-07-25 2013-12-12 Kyocera Corp 無線基地局、無線基地局システム、無線通信システムおよび無線通信方法
WO2016052197A1 (fr) * 2014-09-30 2016-04-07 株式会社 東芝 Circuit intégré pour communication sans fil, terminal de communication sans fil et procédé de communication sans fil

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5158958B2 (ja) * 2008-07-31 2013-03-06 パナソニック株式会社 Ｏｆｄｍシンボル検出方法、ｏｆｄｍ受信装置、集積回路および回路モジュール

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008187488A (ja) * 2007-01-30 2008-08-14 Kyocera Corp 基地局装置及び通信方法
WO2010007666A1 (fr) * 2008-07-15 2010-01-21 富士通株式会社 Dispositif de communication sans fil et procédé de communication sans fil
JP2013251914A (ja) * 2013-07-25 2013-12-12 Kyocera Corp 無線基地局、無線基地局システム、無線通信システムおよび無線通信方法
WO2016052197A1 (fr) * 2014-09-30 2016-04-07 株式会社 東芝 Circuit intégré pour communication sans fil, terminal de communication sans fil et procédé de communication sans fil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109936869A (zh) * 2019-01-24 2019-06-25 四川安迪科技实业有限公司 一种用于突发通信的全数字开环自动增益控制方法及装置
CN109936869B (zh) * 2019-01-24 2021-08-03 四川安迪科技实业有限公司 一种用于突发通信的全数字开环自动增益控制方法及装置

Also Published As

Publication number Publication date
JP6498846B2 (ja) 2019-04-10
JPWO2018016060A1 (ja) 2019-04-18

Similar Documents

Publication Publication Date Title
EP4256861B1 (fr) Coordination de temps de réveil cible (twt) pour fonctionnement multi-ap
JP7432682B2 (ja) 新無線におけるページングオケージョンの設計
US11653286B2 (en) Methods of mobile device based relay for coverage extension
RU2666132C1 (ru) Совместно используемый на стороне пользовательского оборудования распределенный антенный компонент (sudac), пользовательское оборудование, базовая станция и система sudac
CN111867094B (zh) 数据接收和发送方法及装置
US20230023779A1 (en) Map coordination of nstr constrained links
CN110291814B (zh) Bwp切换方法、装置及存储介质
US8411647B2 (en) Random access system for using multi-carrier structure in mobile communication system
CN113973395B (zh) 随机接入方法、配置方法及相关设备
US20230189359A1 (en) Method and apparatus for triggered txop sharing for peer-to-peer communication with twt operation
US20210195610A1 (en) Transmission Prioritization between Uplink and Sidelink
US20230345390A1 (en) Procedures of synchronization signal generation and transmission for network controlled repeaters (ncr)
CN109803406A (zh) 一种中继网络中时域资源的指示方法，网络设备及用户设备
EP4059286B1 (fr) Réutilisation spatiale sensible à l'emplacement
EP2630760B1 (fr) Procédé et appareil pour limiter l'émission d'un canal adjacent
JP6498846B2 (ja) 無線通信装置および無線通信システム
KR20090042746A (ko) 무선 통신 시스템, 기지국 및 송신 방법
US12490121B2 (en) Method and apparatus for enhanced multi-link multi radio (EMLMR) operation
US8457223B2 (en) Wireless communication device, wireless communication method, program and wireless communication system
KR20140129911A (ko) 신호 송수신 방법 및 장치
US11394487B2 (en) Non-orthogonal multiple access (NOMA) using rate based receivers
US20250039789A1 (en) Transmission windows for peer-to-peer communications
US20250338264A1 (en) Dynamic sub-band operation under coexistence constraint
US20240381250A1 (en) Transmission windows for peer-to-peer communications
WO2025152165A1 (fr) Détermination de porteuse pour des transmissions en liaison montante dans des communications sans fil

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: 16909535

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018528173

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16909535

Country of ref document: EP

Kind code of ref document: A1