+

WO2013129594A1 - Station de base radio - Google Patents

Station de base radio Download PDF

Info

Publication number
WO2013129594A1
WO2013129594A1 PCT/JP2013/055472 JP2013055472W WO2013129594A1 WO 2013129594 A1 WO2013129594 A1 WO 2013129594A1 JP 2013055472 W JP2013055472 W JP 2013055472W WO 2013129594 A1 WO2013129594 A1 WO 2013129594A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
base station
cell
radio base
cells
Prior art date
Application number
PCT/JP2013/055472
Other languages
English (en)
Japanese (ja)
Inventor
耕平 清嶋
佑太 寒河江
辰朗 矢島
Original Assignee
株式会社エヌ・ティ・ティ・ドコモ
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 株式会社エヌ・ティ・ティ・ドコモ filed Critical 株式会社エヌ・ティ・ティ・ドコモ
Publication of WO2013129594A1 publication Critical patent/WO2013129594A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information

Definitions

  • the present invention relates to a radio base station.
  • the mobile station UE can perform CA with a single radio base station eNB using a plurality of “Component Carriers (CC)” in different frequency bands at the same time. It is configured as follows.
  • the mobile station UE sets one of a plurality of CCs as a PCC (Primary Component Carrer) and the other as a SCC (Secondary Component Carrer) in response to an instruction from the radio base station. ) Is configured to set as.
  • PCC Primary Component Carrer
  • SCC Secondary Component Carrer
  • the LTE-Advanced mobile communication system it is considered to arrange one or a plurality of pico cells in a high traffic area within the coverage area of the macro cell.
  • -Since ACK / NACK for a downlink signal is transmitted by Pcell (serving cell in PCC), when downlink signals are transmitted simultaneously between cells performing CA, it is necessary to control to avoid collision.
  • Pcell serving cell in PCC
  • TTI Transmission Time Interval
  • each baseband function unit includes a layer 1 function unit, a layer 2 function unit, and a scheduler function unit.
  • the present invention has been made in view of the above-described problems, and an object thereof is to provide a radio base station that can perform baseband processing in cooperation between cells that perform CA.
  • a first feature of the present invention is a radio base station, a layer 1 function unit configured to perform signal processing in layer 1 and a layer 2 configured to perform signal processing in layer 2 A functional unit and a scheduler functional unit configured to perform a scheduling process, and the layer 1 functional unit is provided so that each cell under the radio base station can be independently controlled.
  • the layer 2 functional unit and the scheduler functional unit are provided so as to be able to collectively control a plurality of cells in a group performing CA.
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of the radio base station according to the first embodiment of the present invention.
  • FIG. 3 is a functional block diagram of a baseband function unit in the radio base station according to the first embodiment of the present invention.
  • FIG. 4 is a diagram for explaining the mobile communication system according to the first embodiment of the present invention.
  • FIG. 5 is a diagram for explaining the mobile communication system according to the first embodiment of the present invention.
  • FIG. 6 is a diagram for explaining a conventional mobile communication system.
  • FIG. 7 is a diagram for explaining a conventional mobile communication system.
  • FIG. 8 is a diagram for explaining a conventional mobile communication system.
  • Mobile communication system according to the first embodiment of the present invention A mobile communication system according to a first embodiment of the present invention will be described with reference to FIG. 1 to FIG.
  • the mobile communication system according to the present embodiment is an LTE-Advanced mobile communication system.
  • the mobile stations UE # A1 to # B4 transmit / receive signals to / from the radio base station eNB using the CC of the frequency band F1 and the CC of the frequency band F2 simultaneously. It is comprised so that CA can be performed, ie, it is comprised so that CA can be performed.
  • a cell # A / # B1 / # B2 is provided as a macro cell under a radio base station eNB, and a cell # A1 / # is used as a pico cell.
  • A2 / # B is provided.
  • the CC of the frequency band F1 is used in the macro cell of the cell # A / # B1 / # B2, and the CC of the frequency band F2 is used in the pico cell of the cell # A1 / # A2 / # B. .
  • a core (coverage) band that emphasizes the area coverage range is used as the frequency band F1
  • a capacity band that emphasizes high-speed communication is used as the frequency band F2.
  • an 800 MHz band, a 2 GHz band, or the like may be used as the frequency band F1
  • a 3.5 GHz band or the like may be used as the frequency band F2.
  • each CC may be either 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, or 20 MHz.
  • 1.4MHz, 3MHz, 5MHz, 10MHz, or 20MHz is comprised by 6RB (Resource Block), 15RB, 25RB, 50RB, 75RB, or 100RB, respectively.
  • 1 RB is 180 kHz.
  • the coverage area of cell #A and the coverage area of cell # A1 / # A2 are configured to overlap geographically, and the coverage area of cell # B1 and the cell The coverage area of #B is configured to overlap geographically, and the coverage area of cell # B2 and the coverage area of cell #B are configured to overlap geographically.
  • the mobile stations UE # A1 to # B4 are configured such that the coverage area of the cell #A and the coverage area of the cell # A1 / # A2 overlap, the coverage area of the cell # B1 and the cell CA can be performed only in the area where the #B coverage area overlaps and the area where the cell # B2 coverage area and the cell #B coverage area overlap.
  • the radio base station eNB includes a radio communication unit 11 and a baseband function unit 12.
  • the radio communication unit 11 is configured to perform processing related to radio communication with the mobile station UE.
  • the wireless communication unit 11 includes a transmission / reception antenna, a diplexer or a duplexer for suppressing interference, and the like.
  • the baseband function unit 12 includes a layer 1 function unit, a scheduler function unit, and a layer 2 function unit.
  • the layer 1 functional unit is configured to perform signal processing in layer 1.
  • the layer 1 functional unit processes the received signal of uplink signals such as “Channel decoding”, “Channel de-mapping”, “L1 measurement”, and downlink signals such as “Channel coding” and “Channel mapping”. It is configured to perform generation processing and the like.
  • the scheduler function unit is configured to perform scheduling processing.
  • the scheduler function unit is configured to perform radio resource control such as MAC (Media Access Control) scheduling control.
  • radio resource control such as MAC (Media Access Control) scheduling control.
  • the layer 2 function unit is configured to perform signal processing in layer 2.
  • the layer 2 functional unit is configured to perform state management control of the mobile station UE, RLC (Radio Link Control) / PDCP (Packet Data Convergence Protocol) control, and the like.
  • the layer 1 functional unit is provided so that the cells # 0 to #M under the radio base station eNB can be controlled independently.
  • the layer 2 function unit and the scheduler function unit can collectively control a plurality of cells (for example, cells # 0 to # 2) in the groups # 1 to #N that perform CA. Is provided.
  • the radio base station eNB forms a group #A including cells # A / # A1 / # A2 and a group #B including cells # B / # B1 / # B2 as CA groups.
  • the radio base station eNB as shown in FIG. 5, separate layer 1 function units A-1 / A-2 / for each cell # A / # A1 / # A2 / # B1 / # B2 / # B. A-3 / B-1 / B-2 / B-3.
  • each of the cells # A / # A1 / # A2 / # B1 / # B2 / # 3 is included in the layer 1 functional units A-1, A-2, A-3, B-1, B-2, and B-3.
  • the signal processing in layer 1 in B is configured to be performed independently.
  • the radio base station eNB includes a scheduler function unit A and a layer 2 function unit A for group #A, and a scheduler function unit B and a layer 2 function unit for group #B. B.
  • the layer 2 functional unit A and the scheduler functional unit A are configured to be able to collectively control a plurality of cells # A / # A1 / # A2 in the group #A that performs CA.
  • the layer 2 functional unit B and the scheduler functional unit B are configured to collectively control a plurality of cells # B / # B1 / # B2 in the group #B that performs CA.
  • the scheduler function unit A determines whether to transmit a downlink signal to the mobile stations UE # A1 / # A2 / # A3 under the control of the cell # A / # A1 / # A2, or the cell #A / # A1 / # A2 subordinate mobile station UE # A1 / # A2 / # A3 whether to receive an uplink signal, that is, cell # A / # A1 / # A2 subordinate mobile station UE # It is configured to determine whether to allocate resources to A1 / # A2 / # A3.
  • the scheduler function unit A is configured to perform resource allocation control for the mobile stations UE # A1 / # A2 / # A3 in the cell #A.
  • the scheduler function unit A is configured to perform resource allocation control for the mobile station UE # A1 in the cell # A1.
  • the scheduler function unit A is configured to perform resource allocation control for the mobile station UE # A2 in the cell # A2.
  • the scheduler function unit A may be configured to perform resource allocation control in consideration of various restrictions in each mobile station UE and ACK / NACK collision with a downlink signal.
  • the scheduler function unit A determines to transmit a downlink signal to the mobile station UE # A1 simultaneously in the cell #A and the cell # A1, the total data size to be transmitted is received by the mobile station UE # A1.
  • the data size transmitted in the cell #A or the cell # A1 may be reduced until it does not exceed the maximum data size receivable in the mobile station UE # A1. Good.
  • the scheduler function unit A determines to transmit a downlink signal to the mobile station UE # A1 in the cell # A1, and downlinks to the mobile station UE # A2 in the cell # A2.
  • transmission resources of ACK / NACK for the downlink signal are the same resource, transmission of the downlink signal in cell # A1 or cell # A2 is canceled.
  • the ACK / NACK transmission resources for such downlink signals may be adjusted to be different resources.
  • the layer 2 function unit and the scheduler function unit in the radio base station eNB can collectively control a plurality of cells in a group performing CA. Therefore, baseband processing can be performed in cooperation between cells performing CA.
  • the first feature of this embodiment is a radio base station eNB, which is configured to perform signal processing in layer 2 and a layer 1 function unit configured to perform signal processing in layer 1 A layer 2 function unit and a scheduler function unit configured to perform a scheduling process, and the layer 1 function unit can independently control the cells # 0 to #M under the radio base station eNB.
  • the layer 2 functional unit and the scheduler functional unit can collectively control a plurality of cells (for example, cells # 0 to # 2) in the groups # 1 to #N that perform CA.
  • the gist is that it is provided.
  • the group described above may include one or more macro cells and one or more pico cells.
  • the operations of the mobile station UE and the radio base station eNB described above may be implemented by hardware, may be implemented by a software module executed by a processor, or may be implemented by a combination of both. .
  • Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.
  • the storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE or the radio base station eNB. Further, the storage medium and the processor may be provided as a discrete component in the mobile station UE or the radio base station eNB.
  • UE ... mobile station eNB ... radio base station 11 . radio communication unit 12 . baseband function unit

Landscapes

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

Abstract

Des traitements en bande de base sont effectués d'une manière coopérative parmi des cellules effectuant des CA. La présente invention porte sur une station de base radio (eNB) dans laquelle : des unités à fonction de couche 1 sont configurées pour commander indépendamment des cellules respectives (n°0 à n°M) dont est responsable la station de base radio (eNB) ; et des unités à fonction de couche 2 et des unités à fonction de planification qui sont configurées pour commander, instantanément, une pluralité de cellules (par exemple, des cellules n°0 à n°2) dans chaque groupe parmi une pluralité de groupes (n°1 à n°N) effectuant des CA.
PCT/JP2013/055472 2012-03-02 2013-02-28 Station de base radio WO2013129594A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012047044A JP5281704B1 (ja) 2012-03-02 2012-03-02 無線基地局
JP2012-047044 2012-03-02

Publications (1)

Publication Number Publication Date
WO2013129594A1 true WO2013129594A1 (fr) 2013-09-06

Family

ID=49082785

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/055472 WO2013129594A1 (fr) 2012-03-02 2013-02-28 Station de base radio

Country Status (2)

Country Link
JP (1) JP5281704B1 (fr)
WO (1) WO2013129594A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016121863A1 (fr) * 2015-01-29 2016-08-04 シャープ株式会社 Dispositif de terminal, dispositif de station de base, circuit intégré et procédé de communication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011039969A1 (fr) * 2009-09-29 2011-04-07 パナソニック株式会社 Appareil de communication sans fil, station de base de communication sans fil et système de communication sans fil
JP2011087251A (ja) * 2009-10-19 2011-04-28 Toshiba Corp 分離型基地局および無線部制御装置
JP2011142596A (ja) * 2010-01-08 2011-07-21 Ntt Docomo Inc 移動通信システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011039969A1 (fr) * 2009-09-29 2011-04-07 パナソニック株式会社 Appareil de communication sans fil, station de base de communication sans fil et système de communication sans fil
JP2011087251A (ja) * 2009-10-19 2011-04-28 Toshiba Corp 分離型基地局および無線部制御装置
JP2011142596A (ja) * 2010-01-08 2011-07-21 Ntt Docomo Inc 移動通信システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016121863A1 (fr) * 2015-01-29 2016-08-04 シャープ株式会社 Dispositif de terminal, dispositif de station de base, circuit intégré et procédé de communication

Also Published As

Publication number Publication date
JP2013183361A (ja) 2013-09-12
JP5281704B1 (ja) 2013-09-04

Similar Documents

Publication Publication Date Title
US10575208B2 (en) Method for triggering and reporting a buffer status and device therefor
TWI750260B (zh) 用於共享射頻頻譜的上行鏈路資源配置技術
KR102355387B1 (ko) 하나 이상의 주파수 분할 듀플렉싱 자원들 상에서의 플렉서블 송신들
EP3281310B1 (fr) Procédé de réalisation d'une prioritisation de canal logique dans une agrégation de porteuses avec au moins une cellule secondaire fonctionnant dans un spectre sans licence et dispositif à cet effet
US9473982B2 (en) Utilization of the uplink FDD channel
EP2661115B1 (fr) Procédé et système pour partager un spectre de fréquence entre un système gsm et un système lte
CN107317662B (zh) 用于发送和接收上行数据的方法及其装置
JP2018501722A (ja) ライセンスされていない無線周波数スペクトル帯域における送信を管理するための技法
US20180199208A1 (en) Method for receiving a signal in wireless communication system and a device therefor
JP2017118158A (ja) 基地局装置、端末装置、および通信方法
JP6516265B2 (ja) 基地局装置、端末装置、および通信方法
CN111294193B (zh) 基站装置、终端装置以及通信方法
US10361736B2 (en) Method for transmitting and receiving signal by aggregating two uplink carriers
US20170142704A1 (en) Apparatus and method for supporting various transmission time intervals
JP2017118157A (ja) 基地局装置、端末装置、および通信方法
EP2811800B1 (fr) Procédé de communications mobiles, station de base radio et station mobile
EP3281333B1 (fr) Procédé pour réaliser une opération de demande de répétition automatique hybride dans une agrégation de porteuses avec au moins une cellule secondaire fonctionnant dans un spectre non autorisé et dispositif associé
WO2013133302A1 (fr) Station de base sans fil et procédé d'ordonnancement
WO2013133301A1 (fr) Station de base sans fil
JP5281704B1 (ja) 無線基地局
WO2013133373A1 (fr) Station mobile et station de base sans fil
WO2013133372A1 (fr) Station mobile

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: 13755772

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: 13755772

Country of ref document: EP

Kind code of ref document: A1

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载