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WO2013129367A1 - Station mobile - Google Patents

Station mobile Download PDF

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Publication number
WO2013129367A1
WO2013129367A1 PCT/JP2013/054876 JP2013054876W WO2013129367A1 WO 2013129367 A1 WO2013129367 A1 WO 2013129367A1 JP 2013054876 W JP2013054876 W JP 2013054876W WO 2013129367 A1 WO2013129367 A1 WO 2013129367A1
Authority
WO
WIPO (PCT)
Prior art keywords
band
uplink
mobile station
processing unit
circuit
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/JP2013/054876
Other languages
English (en)
Japanese (ja)
Inventor
佑太 寒河江
大將 梅田
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo 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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of WO2013129367A1 publication Critical patent/WO2013129367A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to a mobile station.
  • the LTE mobile communication system is configured to perform “Uplink CA (Carrier Aggregation)” in which an uplink signal is transmitted using a plurality of bands or a plurality of CCs (Component Carriers, component carriers).
  • Uplink CA Carrier Aggregation
  • CCs Component Carriers, component carriers
  • a Duplexer is inserted in order to suppress leakage from the uplink band to the downlink band in the same band.
  • Inter-band CA a signal leaks from the downlink band of its own band from the uplink band transmitted in a different band.
  • it is generally considered to additionally insert a diplexer.
  • Duplexer # A / # B is inserted in the signal from the uplink band to the downlink band in band # A / # B (solid line in FIG. 7) in order to suppress the leakage.
  • the leaking signal is similarly suppressed by inserting a diplexer.
  • the “REFSENS” is used to reduce the signal leakage from the uplink band to the downlink band in the same band via the duplexer. Etc. "are defined.
  • the mobile station UE for the “1RF Uplink CA” is configured to be able to transmit an uplink signal using a plurality of bands, but in the same subframe (Subframe), any one band or An uplink signal is transmitted using one CC (RF: Radio Frequency).
  • the present invention has been made in view of the above-described problems, and an object thereof is to provide a mobile station capable of realizing “1RF Uplink CA” with an optimal configuration.
  • the first feature of the present invention is configured to transmit uplink signals using a plurality of bands, and at the same timing, using any one band or component carrier,
  • a mobile station configured to transmit the uplink signal, comprising a radio processing unit and a baseband processing unit, wherein the radio processing unit includes a first band transmission circuit and a reception circuit; A transmission circuit and a reception circuit for the second band, an interband separation filter for separating the first band and the second band, and a first band for separating the uplink band and the downlink band in the first band.
  • the baseband processing unit includes a plurality of transmission units corresponding to each of the plurality of bands configured to transmit via the first band transmission circuit or the second band transmission circuit, A plurality of receiving units corresponding to each of the plurality of bands configured to receive via a first band receiving circuit or a second band receiving circuit, each of the receiving units, and the transmission A control unit connected to each of the units, the control unit based on the uplink scheduling information received via the reception unit, via any of the transmission unit, the uplink signal
  • the wireless processing unit is not provided with an intermodulation distortion suppression filter that suppresses intermodulation distortion.
  • 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 mobile station according to the first embodiment of the present invention.
  • FIG. 3 is an example of a functional block diagram of the RF processing unit in the mobile station according to the first embodiment of the present invention.
  • FIG. 4 is an example of a functional block diagram of the RF processing unit in the mobile station according to the first embodiment of the present invention.
  • FIG. 5 is an example of a functional block diagram of the BB processing unit in the mobile station according to the first embodiment of the present invention.
  • FIG. 6 is an example of a functional block diagram of the BB processing unit in the mobile station according to the first embodiment of the present invention.
  • FIG. 7 is a diagram for explaining problems of a conventional mobile communication system.
  • the mobile communication system according to the present embodiment is compatible with the LTE system, and can provide “Inter-band CA” and “Intra-band non-constitutive CA”.
  • Inter-band CA will be described as a premise, but the present invention is also applied to the above combinations. That is, when one band is composed of one CC, it can be regarded as a configuration per CC. In the following, it is assumed that a plurality of bands are controlled, but a plurality of CCs may be controlled.
  • the mobile communication system manages a radio base station eNB # 1 that manages a cell # 1, a radio base station eNB # 11 that manages a cell # 11, and a cell # 12.
  • cell # 1 is a macro cell and is operated in band # 1
  • cells # 11 to # 13 are pico cells and may be operated in bands # 11 to # 13.
  • cell # 1 is set to Pcell and cells # 11 to # 13 are set to Scell for mobile station UE.
  • the mobile station UE according to the present embodiment is configured to be able to realize “1RF Uplink CA”. As shown in FIG. 2, the mobile station UE according to the present embodiment includes an RF (Radio Frequency) processing unit 1 and a BB (Base Band) processing unit 2.
  • RF Radio Frequency
  • BB Base Band
  • the RF processing unit 1 of the mobile station UE that can support the existing “Uplink CA” includes an IM (Inter-Modulation) suppression filter 10 that suppresses intermodulation distortion, a band F1, and a band F2.
  • the RF processing unit 1 of the mobile station UE capable of supporting “1RF Uplink CA” includes a diplexer 11 that separates the band F1 and the band F2, and an uplink band in the band F1. And the duplexer 12A for separating the downlink band, the duplexer 12B for separating the uplink band and the downlink band in the band F2, the transmission circuit 13A and the reception circuit 14A for the band F1, and the transmission circuit 13B for the band F2. And a receiving circuit 14B.
  • the IM suppression filter 10 is not provided in the RF processing unit 1 of the mobile station UE that can handle “1RF Uplink CA”.
  • the BB processing unit 2 of the mobile station UE capable of supporting the existing “Uplink CA” transmits a plurality of transmissions corresponding to each of the plurality of bands # 1 to # (N ⁇ 1).
  • the transmission units 23 # 1 to 23 # (N ⁇ 1) are configured to transmit via the transmission circuit 13A for the band F1 or the transmission circuit 13B for the band F2, and the reception unit 21 # 1.
  • ⁇ 21 # (N ⁇ 1) is configured to be received via the reception circuit 14A for the band F1 or the reception circuit 14B for the band F2.
  • Each of the control units 22 # 1 to 22 # (N-1) is based on the uplink scheduling information received via each of the reception units 21 # 1 to 21 # (N-1).
  • Each of 23 # (N-1) is instructed to transmit a PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) signal.
  • PUSCH Physical Uplink Shared Channel, physical uplink shared channel
  • each of the control units 22 # 1 to 22 # (N-1) transmits a PUSCH signal to each of the transmission units 23 # 1 to 23 # (N-1) as a PUCCH (Physical Uplink Control Channel, physical uplink). Link control channel) signal can be instructed to “Piggy back”.
  • PUCCH Physical Uplink Control Channel, physical uplink.
  • Link control channel Link control channel
  • the mobile station UE capable of supporting the existing “Uplink CA” is configured to transmit simultaneous transmission capability information indicating that an uplink data signal can be transmitted via a plurality of bands in the same subframe. May be.
  • the mobile station UE capable of supporting the existing “Uplink CA” simultaneously transmits that the predetermined communication quality can be ensured when uplink data signals are transmitted via a plurality of bands in the same subframe.
  • the capability information may be transmitted.
  • the BB processing unit 2 of the mobile station UE capable of supporting “1RF Uplink CA” has a plurality of bands corresponding to each of a plurality of bands # 1 to # (N ⁇ 1) Transmitting sections 23 # 1 to 23 # (N-1) and a plurality of receiving sections 21 # 1 to 21 # (N-1) corresponding to each of the plurality of bands # 1 to ## (N-1) And a control unit 22 connected to each of the receiving units 21 # 1 to 21 # (N-1) and each of the transmitting units 23 # 1 to 23 # (N-1).
  • the transmission units 23 # 1 to 23 # (N ⁇ 1) are configured to transmit via the transmission circuit 13A for the band F1 or the transmission circuit 13B for the band F2, and the reception unit 21 # 1.
  • ⁇ 21 # (N ⁇ 1) is configured to be received via the reception circuit 14A for the band F1 or the reception circuit 14B for the band F2.
  • Each of the control units 22 selects one of the transmission units 23 # 1 to 23 # (N-1) based on the uplink scheduling information received via each of the reception units 21 # 1 to 21 # (N-1). Via which a PUSCH signal should be transmitted.
  • the mobile station UE capable of supporting “1RF Uplink CA” is configured to transmit simultaneous transmission capability information indicating that an uplink data signal cannot be transmitted via a plurality of bands in the same subframe. It may be.
  • the mobile station UE when the mobile station UE has a function of communicating using a plurality of bands, it indicates that communication is performed using one of the bands.
  • the mobile station UE capable of supporting “1RF Uplink CA” has a simultaneous transmission capability indicating that the predetermined communication quality cannot be ensured when uplink data signals are transmitted via a plurality of bands in the same subframe. It may be configured to transmit information.
  • the mobile station UE that can support “1RF Uplink CA” is a CC in the band used in the cells # 11 to # 13, that is, an SCC (Secondary Component Carrier) #. It may be configured to transmit an uplink signal using only 11 to # 13.
  • the mobile station UE that can support the existing “Uplink CA” may be configured to realize “1RF Uplink CA” in the cells # 11 to # 13.
  • the mobile station UE that can support the existing “Uplink CA” is the CC in the band used in the cells # 11 to # 13 in the cells # 11 to # 13, that is, the SCCs # 11 to # 13. However, it may be configured to transmit an uplink signal.
  • the mobile station UE capable of supporting the existing “Uplink CA” transmits the simultaneous transmission capability information indicating that the uplink data signal cannot be transmitted via a plurality of bands in the same subframe. It may be configured.
  • the mobile station UE that can support the existing “Uplink CA” cannot guarantee the predetermined communication quality when transmitting an uplink data signal via a plurality of bands in the same subframe. You may be comprised so that the simultaneous transmission capability information shown may be transmitted.
  • “1RF Uplink CA” can be realized by the mobile station UE having a simple configuration.
  • the first feature of this embodiment is configured to be able to transmit an uplink signal using a plurality of bands, and in the same subframe (timing), any one band or CC (RF) is a mobile station UE configured to transmit an uplink signal, and includes an RF processing unit (radio processing unit) 1 and a BB processing unit (baseband processing unit) 2.
  • the RF processing unit 1 separates the transmission circuit 13A and reception circuit 14A for the band F1 (first band), the transmission circuit 13B and reception circuit 14B for the band F2 (second band), and the bands F1 and F2.
  • Control unit 22 and control 22 transmits the uplink signal via any of the transmission units 23 # 1 to 23 # (N-1) based on the uplink scheduling information received via the reception units 21 # 1 to 21 # (N-1). It is configured to determine whether to transmit, and the RF processing unit is not provided with an IM suppression filter (intermodulation distortion suppression filter) 10 that suppresses intermodulation distortion.
  • IM suppression filter intermodulation distortion suppression filter
  • radio base station eNB and the mobile station UE 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 radio base station eNB and the mobile station UE. Further, the storage medium and the processor may be provided in the radio base station eNB and the mobile station UE as discrete components.
  • eNB radio base station UE ... mobile station 1 ... RF processing unit 11 ... Diplexer 12A, 12B ... Duplexer 2... BB processing units 21 # 1 to 21 # (N-1)...

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
PCT/JP2013/054876 2012-02-27 2013-02-26 Station mobile Ceased WO2013129367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-040600 2012-02-27
JP2012040600A JP5819750B2 (ja) 2012-02-27 2012-02-27 移動局

Publications (1)

Publication Number Publication Date
WO2013129367A1 true WO2013129367A1 (fr) 2013-09-06

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Application Number Title Priority Date Filing Date
PCT/JP2013/054876 Ceased WO2013129367A1 (fr) 2012-02-27 2013-02-26 Station mobile

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JP (1) JP5819750B2 (fr)
WO (1) WO2013129367A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7637143B2 (ja) * 2020-07-31 2025-02-27 株式会社Ｎｔｔドコモ 端末、無線通信方法、基地局及びシステム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007274247A (ja) * 2006-03-30 2007-10-18 Kyocera Corp 無線通信用回路装置および無線通信装置
JP2012005078A (ja) * 2010-06-21 2012-01-05 Ntt Docomo Inc 送信電力制御方法、移動端末装置及び無線基地局装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007274247A (ja) * 2006-03-30 2007-10-18 Kyocera Corp 無線通信用回路装置および無線通信装置
JP2012005078A (ja) * 2010-06-21 2012-01-05 Ntt Docomo Inc 送信電力制御方法、移動端末装置及び無線基地局装置

Also Published As

Publication number Publication date
JP5819750B2 (ja) 2015-11-24
JP2013176019A (ja) 2013-09-05

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