WO2010050102A1 - Système de communication sans fil, appareil récepteur, appareil émetteur, procédé de contrôle de la réception, procédé de contrôle de la transmission, programme de contrôle de la réception, et programme de contrôle de la transmission - Google Patents

Système de communication sans fil, appareil récepteur, appareil émetteur, procédé de contrôle de la réception, procédé de contrôle de la transmission, programme de contrôle de la réception, et programme de contrôle de la transmission Download PDF

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Publication number
WO2010050102A1
WO2010050102A1 PCT/JP2009/003934 JP2009003934W WO2010050102A1 WO 2010050102 A1 WO2010050102 A1 WO 2010050102A1 JP 2009003934 W JP2009003934 W JP 2009003934W WO 2010050102 A1 WO2010050102 A1 WO 2010050102A1
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WO
WIPO (PCT)
Prior art keywords
control information
band
signal
control
individual
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PCT/JP2009/003934
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English (en)
Japanese (ja)
Inventor
中嶋大一郎
鈴木翔一
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シャープ株式会社
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Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2010050102A1 publication Critical patent/WO2010050102A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • control information indicator generation unit when there is the individual control information addressed to the receiving device in a predetermined time band, the individual control information addressed to the receiving device.
  • a wireless communication system is characterized by generating a control information indicator indicating that there is a message.
  • the transmission device transmits the transmission signal in a band element having a predetermined size band identified by a band element number.
  • the individual control signal arrangement unit is arranged in one or more band elements having consecutive band element numbers in a band of a band element set that is a set of a predetermined number of band elements,
  • the control information indicator generating unit generates the control information indicator including information indicating a band element set including a band element in which the signal of the individual control information is arranged, and the control information indicator detecting unit is addressed to the own device.
  • the control information indicator is decoded to detect information indicating the band element set, and the individual control signal decoding unit indicates information detected by the control information indicator detection unit. Wherein demodulating the one or more configuration signals to the band element of the band element set, a radio communication system and performs a decoding process on the demodulated information.
  • a receiving apparatus that receives a transmission signal from a transmitting apparatus detects a control information indicator indicating that there is control information addressed to the own apparatus, the decoding process of the control information is performed. And a dedicated control signal decoding unit that does not perform the decoding process of the control information when it is not detected.
  • the control channel element includes a plurality of resource element groups (also referred to as mini-CCE).
  • FIG. 4 is a diagram for explaining an arrangement example of resource element groups in a downlink radio frame according to the present embodiment. This figure shows an arrangement example in which the downlink control channel is composed of the first to third OFDM symbols, and the downlink pilot channels of two transmission antennas (transmission antenna 1 and transmission antenna 2) are arranged. .
  • the horizontal axis represents the frequency domain
  • the vertical axis represents the time domain.
  • the CCE aggregation processing unit a144 performs processing for rearranging the downlink control channel signal so that the control information indicator and the downlink control channel signal are arranged in the resource element group of the selected control channel element.
  • the CCE aggregation processing unit a144 includes a block interleaver, and interleaves the downlink control channel signal arranged in the control channel element for each subband in resource element group units.
  • the CCE set processing unit a144 outputs the interleaved signals to the multiplexing unit a146 in the order of the interleave processing results.
  • Multiplexer a146 transmits the signal input from pilot channel processing unit a145 and the signals input from downlink shared data channel processing units a141-1 to a141-m according to the control from control unit a13. Multiplexed in link radio frame. Also, the multiplexing unit a146 multiplexes the signal input from the CCE aggregation processing unit a144 into the downlink radio frame.
  • the reception processing unit b11 decodes the downlink control channel signal by the following process. First, the reception processing unit b11 selects a mobile station individual search band based on the mobile station identifier (receiving device identifier) of the own device input from the control unit b12. The reception processing unit b11 decodes the control information indicator within the selected mobile station individual search band, and determines whether or not the decoded control information indicator is information indicating that there is control data specific to the own device. To do.
  • FIG. 10 is a schematic block diagram illustrating a configuration of the reception processing unit b11 according to the present embodiment.
  • the reception processing unit b11 includes a reception unit b111, a demultiplexing unit b112, a channel estimation unit b113, a channel compensation unit b114 for a downlink shared data channel, P / S (Parallel / Serial; parallel serial conversion).
  • the demultiplexing unit b112 outputs the separated downlink shared data channel signal to the channel compensation unit b114, and outputs the separated downlink control channel signal and the control information indicator to the channel compensation unit b118. Further, the demultiplexing unit b112 demultiplexes resource elements in which the downlink pilot channel is arranged, and outputs a downlink pilot channel signal to the channel estimation unit b113.
  • the Viterbi decoder unit b1223 for each of the control data candidates notified in advance from the base station apparatus a1, for the signal demodulated by the QPSK demodulator unit b1222 so as to decode the candidate control data, A brute force decoding process is performed.
  • the Viterbi decoder b1223 decodes the signal demodulated by the QPSK demodulator b1222 based on the coding rate input from the controller b12.
  • the Viterbi decoder unit b1223 outputs the decoded signal to the CRC check unit b1224.
  • this signal is expressed in units of bits, and the Viterbi decoder unit b1223 performs rate control in order to adjust the number of bits for performing Viterbi decoding processing on the input bits in accordance with the coding rate instruction from the control unit b12. Dematching is also performed.
  • the Viterbi decoder b1223 performs rate dematching of different processes for control data formats with different amounts of control data.
  • FIG. 14 is a schematic block diagram showing the configuration of the base station apparatus a2 according to the second embodiment of the present invention.
  • the radio resource control unit a22, the control unit a23, and the transmission processing unit a24 are different.
  • the functions of the other components are the same as in the first embodiment, and thus the description of the same functions as in the first embodiment is omitted.
  • the control information indicator detection unit b220 selects the mobile station individual search band based on the start point number t2 input from the start CCE selection unit b121, and decodes the signal of the control channel element in the selected mobile station individual search band. Then, the control information indicator is detected.
  • FIG. 17 is a diagram illustrating an example of downlink control channel multiplexing processing and detection processing according to the present embodiment.
  • the control information indicator detection unit b220 performs the same process as described in the first embodiment, selects the mobile station individual search bands CCE31 to CCE38, and selects the control channel element indexes “33” and “34”. Detecting the control information indicator.
  • the control information indicator detection unit b220 detects the individual information control channel element number “71” from the detected control information indicator, and detects the detected individual information control channel element number “71” and the CCE set from which the control information indicator is detected. The number “2” is output to the CCE selection unit b2221.
  • the control information indicator generating unit a243 generates a bit sequence added after a bit sequence in which a predetermined number of bits all indicate “1”, using the calculated relative number difference 1 “6” as a bit sequence.
  • the control information indicator generation unit a243 generates the control information indicator as described above from the generated bit sequence.
  • the CCE selection unit b2221 sets the number “34” obtained by adding the relative number difference 1 “6” to the indicator control channel element number “28” input from the control information indicator detection unit b220 as the individual information control channel element number c. calculate.
  • the CCE selection unit b2221 detects the control information indicator input from the control information indicator detection unit b220 from the control channel element of the calculated control channel element index of the individual information control channel element number c “34” “1” ”
  • Control channel element signals are selected and output to the QPSK demodulator b1222.
  • the mobile station apparatus b2 performs processing performed by the control channel decoding unit b222 as compared with the case where the control information indicator including information indicating the control channel element in which the signal including the control data specific to the mobile station apparatus b2 is arranged. Although increasing, the amount of data included in the control information indicator can be reduced.
  • the radio resource control unit a32 includes radio resources including transmission power, intermittent transmission / reception cycle, CQI, signal transmission cycle, downlink shared data channel, uplink shared data channel modulation scheme / coding rate, and the like of each mobile station apparatus b3. Manage control information.
  • the radio resource control unit a32 outputs the radio resource control information to the control unit a33.
  • control unit a33 when there is control data specific to the mobile station device b3 to which the downlink control channel is allocated or a combination thereof (specific control information addressed to the mobile station device b3), the control unit a33 has control data specific to the mobile station device b3.
  • the transmission processing unit a34 is controlled so as to generate a control information indicator indicating Also, the control unit a33 outputs the individual information subband number j input from the radio resource control unit a32 to the transmission processing unit a34.
  • the control information indicator generation unit a343 performs convolutional coding and QPSK modulation on the information obtained by adding the generated check information to the generated bit sequence, and generates a control information indicator.
  • the control information indicator generation unit a343 outputs the generated control information indicator to the CCE set processing unit a344.
  • the control information indicator detection unit b320 performs the same process as described in the second embodiment, selects the mobile station individual search bands CCE31 to CCE38, and selects the control channel element indexes “33” and “34”. Detecting the control information indicator.
  • the control information indicator detection unit b320 obtains, from the detected control information indicator, the individual information subband number “4”, the start point number “31”, and the CCE set number “2” from which the control information indicator is detected, as the CCE selection unit b3221. Output to.
  • the downlink control channel signal may be arranged from the control channel element with the control channel element number of the control channel element in which the control information indicator is arranged.
  • the number relative to the start point number of the mobile station individual search band that is the output of the hash function f having the mobile station identifier as an input is the same.
  • base station apparatus a3 interleaves resource elements in subband 1 using a block interleaver.

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

Abstract

Une unité de décodage d’un canal de signalisation (b122) d’un appareil local effectue un décodage des informations de contrôle adressées à l’appareil local si un indicateur d’informations de contrôle qui indique la présence de ces informations de contrôle est détecté. Sinon, l’unité de décodage du canal de signalisation n’effectue pas le décodage des informations de contrôle.
PCT/JP2009/003934 2008-10-29 2009-08-18 Système de communication sans fil, appareil récepteur, appareil émetteur, procédé de contrôle de la réception, procédé de contrôle de la transmission, programme de contrôle de la réception, et programme de contrôle de la transmission WO2010050102A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008278516 2008-10-29
JP2008-278516 2008-10-29

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WO2010050102A1 true WO2010050102A1 (fr) 2010-05-06

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PCT/JP2009/003934 WO2010050102A1 (fr) 2008-10-29 2009-08-18 Système de communication sans fil, appareil récepteur, appareil émetteur, procédé de contrôle de la réception, procédé de contrôle de la transmission, programme de contrôle de la réception, et programme de contrôle de la transmission

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004073346A1 (fr) * 2003-02-12 2004-08-26 Matsushita Electric Industrial Co., Ltd. Recepteur et methode de reception
JP2006332895A (ja) * 2005-05-24 2006-12-07 Fujitsu Ltd 通信端末
JP2008011130A (ja) * 2006-06-29 2008-01-17 Fujitsu Ltd 無線通信装置および無線通信方法
WO2009057283A1 (fr) * 2007-10-29 2009-05-07 Panasonic Corporation Appareil de station de base de communication sans fil, appareil de station mobile de communication sans fil et procédé d'allocation de canal de commande
JP2009164815A (ja) * 2007-12-28 2009-07-23 Sharp Corp 無線通信システム、基地局装置および移動局装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004073346A1 (fr) * 2003-02-12 2004-08-26 Matsushita Electric Industrial Co., Ltd. Recepteur et methode de reception
JP2006332895A (ja) * 2005-05-24 2006-12-07 Fujitsu Ltd 通信端末
JP2008011130A (ja) * 2006-06-29 2008-01-17 Fujitsu Ltd 無線通信装置および無線通信方法
WO2009057283A1 (fr) * 2007-10-29 2009-05-07 Panasonic Corporation Appareil de station de base de communication sans fil, appareil de station mobile de communication sans fil et procédé d'allocation de canal de commande
JP2009164815A (ja) * 2007-12-28 2009-07-23 Sharp Corp 無線通信システム、基地局装置および移動局装置

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