WO2004093476A1 - 移動通信システム、基地局、移動局、及びそれらに用いる無線通信方法 - Google Patents
移動通信システム、基地局、移動局、及びそれらに用いる無線通信方法 Download PDFInfo
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- WO2004093476A1 WO2004093476A1 PCT/JP2004/005447 JP2004005447W WO2004093476A1 WO 2004093476 A1 WO2004093476 A1 WO 2004093476A1 JP 2004005447 W JP2004005447 W JP 2004005447W WO 2004093476 A1 WO2004093476 A1 WO 2004093476A1
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- Prior art keywords
- individual channel
- synchronization
- downlink
- uplink
- timing
- Prior art date
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- 238000010295 mobile communication Methods 0.000 title claims abstract description 41
- 238000004891 communication Methods 0.000 title claims description 49
- 238000000034 method Methods 0.000 title claims description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims description 31
- 239000000835 fiber Substances 0.000 claims description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims 2
- LMRJHNFECNKDKH-UHFFFAOYSA-N 4-(trifluoromethyl)nicotinic acid Chemical compound OC(=O)C1=CN=CC=C1C(F)(F)F LMRJHNFECNKDKH-UHFFFAOYSA-N 0.000 claims 1
- 101150107341 RERE gene Proteins 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000003442 weekly effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 2
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2662—Arrangements for Wireless System Synchronisation
- H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
- H04B7/2678—Time synchronisation
- H04B7/2681—Synchronisation of a mobile station with one base station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- Mobile communication system based: Tsuru, mobile station, and non-serial method used for them
- the present invention relates to a mobile communication system, a base station, a mobile station, and an f ⁇ i-free communication method used for them, and particularly to a high-speed data transfer such as an HSDP A (High Speed Downlink Packet Access) service in a mobile communication system.
- HSDP A High Speed Downlink Packet Access
- a DPCH Dedicated Physical Channel: dedicated channel
- DL (Downlink) / UL (Uplink) is set between a mobile station and a base station.
- Motoki A crane control device [eg, RNC (Radio Network Controller)] is connected to the crane.
- the mobile station always receives the designated 4CH (Channel) HS-SCCH (High Speed Shared Control Channel) from the base station, detects the information of the mobile station ID (Identifier) included in the HS-SCCH, It is determined whether the information of the mobile station ID matches the mobile station ID of the own station.
- HS-SCCH High Speed Shared Control Channel
- the mobile station When the mobile station detects its mobile station ID on the HS-SCCH, the mobile station uses the control information transmitted on the HS-SCCH to transmit the HS-SCCH with a predetermined time delay.
- Receive PDSCH High Speed Physical Downlink Shared Channel
- the HSDPA that has been added performs high-speed packets on the downlink, and when the HSDP A service can be received, the CPICH (Common Pilot Channel), HS-PDSCH, HS_SCCH, and DPCH (DL) (In other words, HS-DPCCH (High Speed Dedicated Physical Control Channel) Refers to DPCH (UL).
- CPICH Common Pilot Channel
- HS-PDSCH High Speed Dedicated Physical Control Channel
- DL DPCH
- HS-DPCCH High Speed Dedicated Physical Control Channel
- CP I CH, Moto :! A pilot signal that is reported to all mobile stations in the cell managed by the pan, and is described by a mobile station in a specified format.Nos search, transmission path estimation, DL reception quality It is used for measurement of
- HS-PDS C is a shared channel for packetizing user data, and is used by time multiplexing between a plurality of mobile stations.
- HS-SCCH is a shared channel for describing control data necessary to receive the packet referred to by HS-PDSCH, and is time-multiplexed between a plurality of mobile stations and is subjected to ⁇ ffl.
- Each mobile station always receives one or more HS-SCCHs, and receives HS-PDSCH packets by using the control information of HS-SCCH addressed to its own station.
- DPCH (DL / UL) consists of DPCCH (Dedicated Physical Control Channel) and DPDCH (Dedicated Physical Data Channel).
- TPC Transmit Power Control
- TFC I Transport Format Combination Indication: transmission format information
- HS-D P CCH is based on C ⁇ I ⁇ Channel I (Channel Quality Indication: Downlink Quality Information), ACK / NACK (Acknowledgement / Negative) Acknowledgements): A separate channel to ejffe.
- the mobile station since the mobile station does not know the timing at which a bucket is said from the station, regardless of the presence / absence of the packet, the HS-SCCH is received and control indicating whether or not the packet is addressed to its own station ⁇ f ⁇ It is necessary to set a channel for transmitting Therefore, even if the packet reception time is short, the power of the mobile station is consumed.
- high-speed packet communication such as HSDP A is often used for services such as web browsing that intermittently download data. Even if the reception time of the mobile station is short, the consumption of the mobile station increases.
- the individual channel 71 ⁇ is immediately transmitted using the DP CH. It is necessary to set the CH, during which time the terminal is consumed.
- the mobile station is still transmitting the DPC CH (UL / DL) signal. Since the individual channel is transmitted at an arbitrary timing, it is necessary to set the DPCH regardless of the presence or absence of the individual channel, and the terminal is consumed during that time. would.
- An object of the present invention is to solve the above-mentioned problems, reduce power consumption in a packet waiting state, and quickly transfer a bucket to a request for data transmission even when a request for data transmission is made.
- An object of the present invention is to provide a communication system, a base station, a mobile station, and a no-tsuru method used therein.
- a first mobile communication system is a mobile communication system including a base: t crane, and a mobile station that sets up a wireless link between the base station and tfj
- the own base station provides a means for indicating the downlink individual channel serving as the absolving station, and the individual channel for the upstream link corresponding to the uplink individual channel H from the t & 3 ⁇ 4 mobile station to the ttf
- Means for initiating a synchronization establishing operation; and, at a third timing of a predetermined period set in advance, the synchronization strength of the individual channel of the uplink and the individual channel of the tUIB downlink are determined by fct and the ttilBS base station and the mobile station.
- Means for killing tffiB language data when said language data is Means for starting the synchronization operation of the individual channels of the ttiia downlink at the second timing of the predetermined period set in advance, and the synchronization power of the own downlink and the tut Means for starting the speech of the dedicated channel; and synchronizing force of the dedicated channel of the uplink and the dedicated channel of the Sfll self-downlink at a third timing of a predetermined cycle set in advance.
- the tiff self-synchronization establishment operation is performed when the synchronization of the individual channels of the Iff!
- each of the tiff own base station and the mobile station receives a dedicated channel and a down link of the brutally uplink line. Synchronization force of some individual channel or deviation S is not established, sometimes ⁇
- Tin It may further comprise a means for fibering the difference between the transmission of the individual channel of the uplink channel and the reception of the individual channel of the downlink channel, and the fiber for performing the synchronization establishment operation.
- the base station is not synchronized at the third timing, the individual channels of the brute-force uplink and the individual channels of the Xiao-Zhi downlink are not synchronized.
- a means for improving the synchronization establishment operation by referring to the reception of the individual channel of the own channel or the reception of the individual channel.
- a second mobile communication system is a mobile communication system including a base station and a mobile station that establishes a radio link between the base station and a tiriss base station to perform data communication, Means for instructing the individual channel of the downlink to the tiiisi multi-mobile station, and the individual timing of the uplink to the BS from the mobile station at the first timing of a predetermined period set in advance.
- tilt synchronization ms of the dedicated channel of his own downlink means for starting the operation, the third timing a predetermined period set in advance In this way, the synchronization of the individual channel of the uplink and the individual channel of the downlink is established and the transmission of the transmission data between the base station and the l! Il mobile station is performed.
- the synchronizing power of the individual channel of the tin uplink and the individual channel of the uplink & downlink
- 53 ⁇ 43 ⁇ 4 Means for stopping at least one of the reception of the individual channel of the downlink and the individual channel of the ifjia transmission line. Synchronization of the individual channel of the uplink and the individual channel of the tiHB downlink, fb, and sometimes an eccentric synchronization establishment operation is performed.
- each of the base station and the tfrf own mobile station performs the individual channel of the own uplink channel and the individual channel of the miB downlink channel.
- the device may further include a means for performing a synchronization operation when the synchronizing force is not obtained.
- the cafeteria and the mobile station may check the individual channel of the uplink and / or the individual channel of the leaky downlink, or the synchronizing power of some of them may not be correct.
- the HUES base station may not be able to establish synchronization between the individual channels of the uplink and the individual channels of the wna downlink at the third timing of the tfif, and sometimes the individual channels of the tfJlB downlink may not be established.
- a base station is a base station that sets a line between one or more mobile stations and performs data transmission / reception, and a means for informing a knitting station of a downlink individual channel, Synchronization of the individual channel according to the individual channel of the line? means for starting the ti £ operation, and at the first timing of a predetermined cycle set in advance, the synchronization power of the individual channel of the uplink and the individual channel of the tufa downlink 3 ⁇ 4 ⁇ ⁇ A means to transmit tillB weekly data when the data is transmitted, and a synchronizing power of the individual channel of the tfilE uplink and the individual channel of the demand downlink at the first timing.
- the first mobile station is a mobile station that establishes a radio channel with a base crane to perform data communication, and that the tiifS @ fcya station speaks at a first timing of a preset predetermined cycle.
- the synchronization of the individual channel of the tfjE channel and the individual channel of the tiJlB downlink (with tfj
- Transmission of individual channels of the line Reference Means for stopping at least one of the reception of the individual channel of the downlink, and the synchronization of the fiJt individual channel of the uplink and the individual channel of the downlink at the second timing.
- the second mobile station is a mobile station that establishes a radio channel between the mobile station and the mobile station to perform data communication, and includes means for indicating an uplink individual channel to the Ifnas base station.
- the communication means Synchronization of the dedicated channel and the downlink individual channel is established and the data to be transmitted to the local station is not available.
- Receive channel Means for least be stopped one out, Slight second timing ⁇ , Te individual disgusting himself uplink If the synchronization of the channel and the individual channel of the downlink is not fet, sometimes the lift refers to the individual channel of the uplink and receives one of the individual channels of the BIB downlink! ⁇ Then tiil self-sync operation! And means for doing so.
- a first non-charge method comprises: a base station; Is a mobile communication system that includes a mobile station that sets up a wireless line and performs data communication between the mobile stations, and a so-called base station refers to a downlink individual channel that is connected to a mobile station. ,
- IfilSSi Tsuru starts the synchronization operation of the individual channel of the uplink according to the individual channel of the uplink from the ⁇ ⁇ mobile station to the ⁇ 3 ⁇ 43 ⁇ 4 station.
- synchronization of the individual channel of the downlink is started.
- the tit operation is started, and when the mobile station is synchronized with the undesired downlink, the mobile station speaks to the individual channel of the uplink.
- the mobile station starts synchronization at a third timing of a predetermined cycle, which is set in advance, by the synchronization of the individual channel of the ffJt own channel and the individual channel of the downlink channel.
- the mobile station When the broadcast data is transmitted between the mobile station and the mobile station, the mobile station transmits the broadcast data, and the mobile station, at the third timing, transmits the individual channel of the uplink and the mobile station.
- the individual channel of the downlink Between the L t ⁇ tif
- each of the ttfiBS local station and the mobile station establishes synchronization of the uplink individual channel and the mis downlink individual channel at the third timing.
- the mobile station B does not want to establish the synchronization channel for the individual channel of the uplink and the individual channel of the litiia downlink, Refer to the individual channel of the own line.
- ttnas ⁇ is unable to synchronize any of the uplink individual channel and the tmt individual downlink channel with each other. It may be possible to hide the self-synchronization establishment operation by detecting whether or not the reception of the individual channel of the uplink line is wrong or not.
- the second Shinjuku Mutsuru trip is a wireless communication system that includes a base station and a mobile station that establishes a wireless line between the ttfiast pot and performs data communication.
- TfiiaSj tsuru force ttif Refers to the downlink individual channel at the mobile station, and the leaked BS is transmitted from the 1 ⁇ 12 mobile station to the ttitB3 ⁇ 4W at the first timing of the preset predetermined cycle. Synchronization of the individual channels of 3 ⁇ 4 ⁇ starts operation, the mobile station speaks to the local station of the Ken 53 ⁇ 4 local station and the individual channel of the uplink, and the m station transmits the second timing of a predetermined period.
- a mobile station starts the operation of the individual channel of the uplink and the individual channel of the ttrt downlink at a third timing of a predetermined period set in advance.
- tilB3 ⁇ 4tya station and ⁇ ⁇ dynamic
- the speech data is transmitted and received, and the fiB ⁇ mobile station performs synchronization of the individual channel of the uplink and the individual channel of the IB downlink at the third timing.
- each of the tillBSt station and the second mobile station can determine at the third timing of tins either the individual channel of the uplink or the individual channel of the downlink tiia. If such synchronization is not established, the self-establishment synchronization establishment operation may be continued. Also, at the third timing, the mobile station ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ Describing the individual channel of the line and the reception of the individual channel of the downlink, and checking the difference between the two channels.
- tiifaSi crane tiifaSi crane
- the individual channel of the uplink and the individual channel of the downlink are not synchronized, and sometimes itjf is referred to as the individual channel of the downlink.
- the downlink individual channel to the local station s mobile station is referred to, and at the first timing at which the mobile station is set at a predetermined cycle, the downlink The synchronization establishment operation of the dedicated channel is started, and when the synchronization can be established, the description of the uplink dedicated channel to the base station is started.
- the second timing set at a predetermined cycle synchronization between the uplink individual channel and the downlink individual channel is established. Tsuru and the mobile station ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ .
- the mobile station at the second timing, the synchronization power of the uplink individual channel and the downlink individual channel 3 ⁇ 4 ⁇ , and the data power s between the base station and the mobile station.
- the mobile station has stopped at least one of the uplink dedicated channel reception and the downlink dedicated channel reception.
- the synchronization establishing operation can be continued at the synchronization power% 1 of the individual channel of the uplink or the individual channel of the downlink. ing.
- the downlink individual channel transmitted to the mobile station is transmitted, and at the first timing set at a predetermined cycle of the mobile station, the downlink individual channel is transmitted.
- the synchronization establishment operation of the base station is started, and when the synchronization can be established, the description of the uplink individual channel to the base station is started.
- the synchronization between the individual channel of the uplink and the individual channel of the downlink is established.
- the transmission data is transmitted between the crane and the mobile station when the fiber data is transmitted.
- the synchronization between the individual channel of the uplink and the individual channel of the downlink is different between the mobile station and the mobile station.
- the mobile station has stopped receiving at least one of the uplink dedicated channel and the downlink dedicated channel.
- the synchronization power of the uplink individual channel or the downlink individual channel cannot be established at the second timing.
- the synchronous ⁇ ⁇ operation is performed.
- the downlink individual channel is referred to the mobile station, and at the second timing set at a predetermined cycle T, the synchronization power of the uplink individual channel and the downlink individual channel is set at the second timing.
- the data is killed.
- the base station of the present invention at the second timing set at the predetermined period ⁇ , the synchronization power of the individual channel of the uplink and the individual channel of the downlink, The data has been stopped at the mobile station.
- the synchronization power of the uplink individual channel or the downlink individual channel 3 ⁇ 4 ⁇ can be obtained, 3 ⁇ 4 ⁇ , the transmission of the uplink individual channel or Receiving the downlink individual channel! ⁇ And maintaining the synchronization establishment operation.
- a radio channel is set up with the base station, and at the first timing set at a predetermined cycle, the individual channel synchronization operation of the downlink set by the base station is started. Then, downlink synchronization; ⁇ Once established, transmission of uplink individual channels is started.
- the synchronization power of the uplink individual channel and the downlink individual channel ⁇ and the data transmitted between the base station and the crane When the communication is completed, the transmitted message data is transmitted.
- the mobile station of the present invention at the second timing, synchronization between the uplink individual channel and the downlink individual channel is established, and data between the mobile station and the powerful base station does not depend on the second timing. At least one of the uplink dedicated channel and the downlink dedicated channel reception is stopped.
- the synchronization power S of the individual channel of the uplink or the individual channel of the downlink can be established! Check the reception of the channel channel or the individual channel of the downlink, and synchronize operation! I do.
- reception of a packet by a mobile station The Mif information is transmitted from the base station to the mobile station, and the mobile station receives the bucket control ⁇ t ⁇ based on the kill state information.
- the mobile station By setting either the active state or the suspended state in which the mobile station does not receive the control information for the bucket statement, the mobile station is not receiving packets or transmitting individual channels. Since the mobile station is in the suspended state, it is possible to increase the consumption of the mobile station.
- the synchronization establishment operation is performed! By doing so, it is possible to synchronize * even if the transmission is poor and the synchronization takes time. Therefore, according to the present invention, the status ⁇ blue alert ⁇ can be detailed to the mobile station, and the packet ⁇ word ⁇ can be absorbed and the snooping can be improved.
- FIG. 1 is a block diagram showing a configuration of a mobile communication system according to the spirit of the present effort.
- FIG. 2 is a block diagram showing a configuration of a base station according to a first embodiment of the present invention.
- FIG. 3 is a block diagram showing the configuration of the mobile station according to the first example of this endeavor.
- FIG. 4 is a diagram showing signal killing between the base station shown in FIG. 2 and the mobile station shown in FIG.
- FIG. 5 is a flowchart showing the operation of the base station shown in FIG.
- FIG. 6 is a flowchart showing the operation of the base station shown in FIG.
- FIG. 7 is a flowchart showing the operation of the mobile station shown in FIG.
- FIG. 8 is a flowchart showing the operation of the mobile station shown in FIG.
- FIG. 9 is a diagram for explaining a communication method according to the second embodiment of the present invention.
- FIG. 10 is a diagram for explaining a communication method according to the third embodiment of the present invention.
- FIG. 1 is a block diagram showing a configuration of a mobile communication system according to an embodiment of the present invention.
- the mobile communication system according to the embodiment of the present invention includes a base station 1, a mobile station 2, and a base station controller [for example, RNC (Radio Network Controller)] 3.
- RNC Radio Network Controller
- the mobile station 2 always receives the HS-SC CH (High Speed Shared Control Channel) of the specified 4 CH (Channel) from the base: t section, and the mobile station ID (Identifier) included in the HS-SC CH. ) Is detected, and it is determined whether or not the information of the mobile station ID matches the mobile station ID of the own station.
- HS-SC CH High Speed Shared Control Channel
- the mobile station 2 When the mobile station 2 detects its mobile station ID on the HS-SCCH, the mobile station 2 uses the control information transmitted on the HS-SCCH and transmits it from the HS-SCCH with a predetermined time delay.
- Received HS—PDSCH High Speed Physical Downlink Shared Channel.
- gff frame for example, mobile station 2 having a cycle of 100 sec
- Transmission / reception status update information to indicate the status [Active / Suspend] in the unit frame that controls the status of the mobile station (signal indicating the status of the mobile station 2 in the status of ⁇ frame ⁇ in the frame) ( Hereafter, it is referred to as “state update”.
- active is a state in which mobile station 2 can receive normal HSDPA (High-Speed Downlink Packet Access), that is, it can receive control information necessary for packet transmission. Yes, and is turned on for all circuits, and is in a state of falling.
- the “suspend” is a state in which the mobile station 2 is in a state where it cannot receive the HSDPA, and is in a consumption reduction mode in which the number of times of receiving the HSPDA is OFF.
- the base station 1 and the mobile station 2 start the synchronous fet operation of the line at a predetermined timing in order to transmit the state Sif information in the suspended state.
- This is to receive the pilot signals described on the uplink individual channel (hereinafter, “uplink individual channel”) and the downlink individual channel (hereinafter, “downlink individual channel”), and to transmit the pilot signal.
- the receiving side detects the start timing of the frame and the start timing of the slot in which the pattern of “!” Is indicated in advance, and adjusts the reception timing.
- At least one of the base station 1 and the mobile station 2 maintains the synchronization establishment operation if the synchronization cannot be established within the synchronization establishment time prescribed in advance.
- the probability that the synchronization of the wireless circuit can be completed before the next state update notification timing is increased, the packet traffic due to the synchronization is reduced, and the throughput of the HSDP service is increased.
- FIG. 2 is a block diagram showing a configuration of a fiber station according to a first difficult example of the present invention.
- the base station 1 includes an antenna 11, a duplexer (DUP) 12, a receiving unit 13, a user data part 14, a bucket difficult control unit 15, It comprises a decision 16, a synchronization establishment ⁇ 7, a buffer 18, a signal generation unit 9, m ⁇ 20, and an IB® medium 1 A. Since the techniques of the call control section, the voice input / output section, and the display section of the base station 1 can be applied, the description of the structure of these sections will be omitted.
- DUP duplexer
- the voice input / output section, and the display section of the base station 1 can be applied, the description of the structure of these sections will be omitted.
- DPCH UL
- duplexer 12 a signal received via the antenna 11 and the duplexer 12 to the user data part 14.
- the user data segment 4 14 converts the received signal from the receiver 13 into a user signal (voice signal). Signals, image signals, etc.) and control information [CQI (Channel Quality Indication: downlink quality ⁇ f #) information, etc.] and send them to the call control part, voice output part, and display part of base station 1 that performed the user's Then, the control information is transmitted to the packet transmission control unit 15.
- CQI Channel Quality Indication: downlink quality ⁇ f #
- the bucket control unit 15 performs fiber control of the packet temporarily transmitted to the buffer 18 based on the CQI from the user data unit 14 and the active mobile station information from the state Sff decision 16.
- the state decision 16 determines whether the mobile station 2 should be in the active state or whether the mobile station 2 should be in the suspend state based on the presence / absence of a packet temporarily stored in the buffer 18 and based on the result of the decision.
- the mobile station information is transmitted to the bucket control unit 15, the status update information signal (status fft green report to the mobile station 2) is transmitted to the signal unit 19, the individual channel H3 ⁇ 4 reception ON / OF F signal is received by the reception unit 13 and It is transmitted to the transmission unit 20 respectively.
- the synchronization establishing unit 17 returns to the suspend state of the own station, and when a predetermined synchronization time i: interval start time comes, instructs the transmission unit 20 to speak the DPCH (DL) which is a downlink dedicated channel, From the output of the receiving unit 13, the uplink individual channel DP CH (UL) ⁇ (monitoring the presence / absence of a word and detecting the DPCH (UL) word, starts uplink synchronization.
- the synchronization ⁇ 3 ⁇ unit 17 If the synchronization is successfully established within the predetermined synchronization establishment interval, the status is updated to 16 and if the synchronization is unsuccessful, the DPCH (DL) edit is sent to the message unit 20. I do.
- the buffer 18 temporarily stores user information (packets), and the signal unit 19 synthesizes the user's (bucket) temporarily stored in the buffer 18, the status from the status update decision 16, and the green report signal.
- HS-SCCH, DPCH (DL), and HS-PDSCH are transmitted from the antenna 11 via the transmitting section 20 and the duplexer 12.
- the recognition medium 1A is a part of the base 1 (particularly, a packet). It has programs (programs that can be Hfid with a computer) that make the processing of the language control unit 15, status control unit 16, and synchronization establishment unit 17 difficult.
- FIG. 3 is a block diagram showing a configuration of a mobile station according to a first example of the present invention.
- the mobile station 2 includes an antenna 21, a duplexer (DUP) 22, a receiver 23, a user data portion ⁇ 24, a poor reception quality 25, and a And packet control signal ⁇ part 27, status: Ef decision 28, synchronization 30, 3 ⁇ 4ift 31, and medium 2A.
- DUP duplexer
- the voice input / output portion, and the display portion of the mobile station 2 since the following is applicable, the description of the structure thereof will be omitted.
- the return 23 transmits the signal [CPI CH (Common Pilot Channel), DPCH (DL) which is a downlink dedicated channel, HS-PDSCH] received via the antenna 21 and the signal sharing device 22 to the user. It is sent to the data channel 24.
- the user data part «24 separates the received signal from the receiver 23 into the user ⁇ (voice signal, image signal, etc.) and the control ⁇ f ⁇ , and the call control part of the mobile station 2 that The control information is sent to the audio output part and the display part, respectively, and the control information is sent to the packet reception judgment & 26 and Okito 28.
- the reception quality measurement tone ⁇ 25 measures the reception quality [Ec / Io (energy per chip / powder per unit frequency)] of the CPICH from the reception unit 23, and reports the measurement result in a packet. Output to the control signal generator 27.
- the bucket reception judgment 26 is based on the control information from the user data part 24 and determines whether or not there is HS-SCCH control information (a signal for notifying the transmission timing of the bucket). It is determined whether the packet has been received normally, and the result is output to the bucket control signal generation unit 27.
- the bucket control signal generation unit 27 based on the results from the bucket reception judgment # 526, receives ACK / NACK (Acknowledgement / Negative Acknowledgements), which is the information of the received packet, and measures the reception quality from the reception quality measurement ⁇ 25.
- ACK / NACK Acknowledgement / Negative Acknowledgements
- the CQ I and the QQ based on the result are generated and sent to the communication unit 30.
- the state decision 28 is based on the control information from the user data ⁇ 24 and the presence / absence information of the individual channel notation in the user '
- the synchronization unit 29 receives the downlink dedicated channel DPCH (DL) at the reception it # 23, performs a synchronization Ifct operation, and performs synchronization. Then, the instruction of DPCH (UL), which is an uplink individual channel, is instructed at t31. In addition, the synchronization unit 29 Predetermined synchronization ⁇ Downlink synchronization within 1 ⁇ 2 ⁇ interval? The synchronization establishment operation set to tet is checked, and when the synchronization of the DPCH (DL) is synchronized, the instructing of the bacteria of the DPCH (UL) is instructed to the message unit 31.
- DPCH downlink dedicated channel
- UL which is an uplink individual channel
- the credit department 30 is no. Packet control signal «Combining information (ACK / NAC K, CQI) from unit 27 and external input signals such as call control unit ⁇ I voice input part of mobile station 2, etc., DPCH (UL), HS—DPCCH
- ACK / NAC K, CQI Combining information
- DPCH UL
- HS DPCCH
- the medium 2A is a program (particularly a program for causing the mobile station 2 to perform processing of each part (particularly, the packet reception judgment unit 26, the packet control signal generation unit 27, the state Sff decision unit 28, the synchronization unit 29, etc.). Edible program that runs on a computer).
- FIG. 4 is a diagram showing transmission and reception of signals between the male station 1 shown in FIG. 2 and the mobile station 2 shown in FIG. The operation of the mobile communication system according to the first example of the present invention will be described with reference to FIG.
- the base station 1 opens a call for the downlink dedicated channel DPCH (DL).
- the mobile station 2 receives the DPCH (DL), which is an uplink dedicated channel, and starts a synchronization operation.
- the synchronization ⁇ 5 ⁇ interval end time (timing T2 in FIG. 4 ) is reached, the synchronization of the DPCH (DL) is not synchronized, and the mobile station 2 performs the synchronization establishment operation.
- the base station 1 cannot detect the DPCH (UL) transmission even at the end of the synchronous Ifct interval (timing T2 in FIG. 4). ), The user data on the DPCH (DL) for the mobile station 3 ⁇ 4 (words and the above control message are transferred to the DPCH (UL) 3 ⁇ 4 ( Wait until you say ⁇ !
- the mobile station 2 When the synchronization power of the DPCH (DL) is obtained (at timing T3 in FIG. 4), the mobile station 2 opens the DPCH (UL) term.
- the base station ⁇ 1 detects the DPCH (UL) signal from the mobile station 2, it starts the synchronization operation, starts the user data and the control signal above the DPCH (DL) that are difficult, and starts their fibers. You.
- base station 1 completes the synchronization ⁇ 3 ⁇ of the DPCH (UL) (see the timing of FIG. 4).
- T4 next state: Eif information At the timing (timing T5 in FIG. 4), state information on the mobile station is reported.
- the base station 1 transmits user data to be transmitted to the mobile station 2 or a control signal as described above: ⁇ , active » and starts communication.
- the mobile station 2 when the base station 1 does not receive a power control signal for the mobile station 2, the mobile station 2 indicates “suspend” at the timing of status information, and the mobile station 2 and DPCH ( DL / UL), HS—SC CH, HS—PDS CH, and HS-DPCCH are stopped.
- FIGS. 5 and 6 are flowcharts showing the operation of the base station 1 shown in FIG. 2, and FIGS. 7 and 8 show the operation of the mobile station 2 shown in FIG. It is a flowchart.
- the operation of the mobile communication system (base station 1 and mobile station 2) according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 8.
- the processing shown in FIGS. 5 and 6 is difficult when the base station 1 executes HffT on the program of the document 1A.
- the processing shown in FIGS. 7 and 8 This is done by renewing the body 2A program.
- the base station 1 starts the synchronization teaching operation shown in FIG. 6 (FIG. 5, step S2).
- the base station 1 starts to abandon the downlink dedicated channel (FIG. 6, step S21), and monitors the uplink dedicated channel referred to by the mobile station 2.
- base station 1 starts the operation of establishing uplink synchronization (FIG. 6, step S23).
- the base station 1 completes the synchronization operation of the radio line.
- the above synchronization operation is completed within the synchronization establishment interval ⁇ (Fig. 5, step S3), and the base station 1 sends the status information to the mobile station 2 Fig. 5, step S4 ).
- the base station 1 has difficulty in active communication, as shown in FIG. 5, steps S5 and S6). Do the faith.
- the base station 1 If there is no data to be reported to the mobile station 2, the base station 1 notifies the suspend state (FIG. 5, steps S5 and S6), and schedules the mobile station 2 to the scheduler. Do not do
- the base station 1 did not complete the synchronization establishment operation in the synchronization establishment interpal: 3 ⁇ 4 (FIG. 5, step S3), and instructed the mobile station 2 to send the downlink individual channel language to the fiber. Yes (Fig. 5, Step S8).
- the base station l monitors the uplink individual channel referred to by the mobile station 2, and upon receiving the uplink individual channel, starts the operation for establishing uplink synchronization (Fig. 5, step S9). Ten).
- the base unit 1 starts transmission of the user data described in the downlink dedicated channel and the control signal of the above 4 (step S11 in FIG. 5).
- the base station 1 performs the above operation at each state timing set at a predetermined cycle.
- step S31 in FIG. 7 the mobile station 2 starts the ⁇ ⁇ wireless line synchronization ⁇ ⁇ i £ operation (FIG. 7, step S31). S 32).
- the mobile station 2 receives the downlink individual channel, which is referred to as “base”, and establishes downlink synchronization (step S41 in FIG. 8).
- base which is referred to as “base”
- step S41 in FIG. 8
- step S42 the mobile station 2 starts an individual channel / talk on the uplink (FIG. 8, step S43).
- the mobile station 2 receives the status update information transmitted at a predetermined timing when if ⁇ (FIG. 7, step S33), which completes the above-described synchronization 3 ⁇ 4 ⁇ operation within a predetermined synchronization ifct interval (FIG. 7, step S33). If it is instructed to be active (FIG. 7, step S34), it is set to the active state (FIG. 7, step S36).
- the active state refers to a state C in which downlink / uplink dedicated channels DPCH (DL / UL), HS—SCCH, HS—PDSCH, and HS—DPCCH can be transmitted.
- the mobile station 2 receives the downlink individual channel when the synchronization operation has not been completed (step S33 in FIG. 7), and performs the synchronization number operation.
- Figure 7, step S38 The mobile station 2 starts transmission of the uplink dedicated channel (FIG. 7, step S40) after the downlink synchronization power (FIG. 7, step S39).
- the mobile station 2 performs the above-described operation at every 5 Jf timing set in a predetermined cycle.
- the mobile station 2 is in the suspend state at the time other than the reception of the packet and the transmission of the individual channel, so that the consumption of the mobile station 2 can be reduced.
- the data power is difficult to achieve in a burst, and the data is lost, and the rate of time is long, so stopping the killing has a great effect on the consumption of the mobile station 2. .
- the probability that the 3 ⁇ 4S state ff information can be told to the mobile station 2 can be increased. For this reason, in the present embodiment, it is possible to reduce the amount of packet transmission, and to improve the snow put of 1130.
- the base station 1 determines whether the DPCH (UL) is Synchronization force It is possible to determine whether the force is S3 ⁇ 4t.
- the user data and the control signal described above can be described after impressing that the synchronization force S of the DPCH (DL) can be established. This has the effect of increasing the probability that the mobile station 2 will be able to receive these signals accurately.
- the completion of the DPCH (DL) synchronization can be communicated to ⁇ tya station 1 by using the DPCH (UL) base, so the signaling for notifying the completion of the DPCH (DL) synchronization establishment is reduced.
- the uplink can be made more efficient ⁇ ! There is also an effect that can be done.
- FIG. 9 is a diagram for explaining a communication method according to the second embodiment of the present invention.
- the first example of the present invention establishes synchronization of the downlink dedicated channel DPCH (DL).
- DPCH downlink dedicated channel
- DL / UL uplink dedicated channel
- DL / UL downlink / uplink dedicated channel
- Timing T6 The book
- the configurations of the base station and the mobile station according to the second embodiment of the present invention are the same as those of the first embodiment of the present invention shown in FIGS. 2 and 3.
- the base station it is not possible to determine from the reception of the DP CH (UL) whether the synchronization power of the DP CH (DL) is sufficient or not. Then, when the synchronization of the DPCH (DL) is established, the mobile station transmits a downlink synchronization 3 ⁇ 4i £ completion notification (FIG. 9, timing T8). In addition, when the station has received the synchronization of the DP CH (UL), it issues an uplink synchronization synchronization completion signal of 11 "(FIG. 9, timing 9). Other operations are performed by the first male of the present invention. Same as the example.
- the mobile station is in a suspended state at times other than the reception of the bucket and the transmission and reception of the channel by value, so that the consumption of the mobile station can be reduced.
- packet communication is difficult in terms of data power s bursts, and data is not transmitted, and the time ratio is long. This has a significant effect of reducing the mobile station's power consumption caused by stopping communication.
- the present embodiment it is possible to perform synchronization even in a situation where the propagation environment is poor and it is difficult to establish synchronization in a short time. Therefore, in this example, it is possible to increase the probability that the ⁇ g state: Sift green information can be informed to the mobile station. Therefore, it is possible to reduce the amount of packet transmission, and to improve the HSDPA snooping.
- the DP CH (UL) can also be started immediately after the start of the synchronization establishment interval, the time required for establishing the synchronization of the uplink can be increased, and the time required for the uplink synchronization can be increased. It also has the effect of increasing the success rate of establishment.
- FIG. 10 is a diagram for explaining a communication method according to a third example of the present invention.
- a third example of the present invention when the base station is unable to establish the DPCH (UL) synchronization which is an uplink dedicated channel within a predetermined synchronization? Notify S mobile station of DP CH (UL) synchronization failure t It describes the downlink dedicated channel, DP CH (DL).
- the configurations of the base station and the mobile station according to the third difficult example of the present invention are the same as those of the base station 1 and the mobile station 2 according to the first example of this effort shown in FIGS. 2 and 3. Configuration.
- the mobile station is in a suspended state except for receiving a packet or transmitting an individual channel, so that consumption of the mobile station can be reduced.
- the data power is reduced in an S burst, and the ratio of time during which data is not reported is long, so that the effect of reducing the consumption of the mobile station by stopping the communication is great.
- the synchronization can be established until the next state Mif'ltM notification timing. The chances of being able to do it increase.
- the probability that the new state information can be announced to the mobile station can be increased, so that the luck of the packet language can be reduced and the snow put of the HS DPA can be improved.
- the mobile station can receive a packet.
- the communication state indicating i? Is transmitted from the base station to the mobile station.
- the mobile station can set the active state to receive the control for the bucket language 'ft', or the mobile station to the control state for the packet language can suspend the control ⁇ f ⁇ , or the suspended state to the mobile station.
- the mobile station is in a suspended state at times other than the reception of a bucket or the transmission of an individual channel, and the consumption of the mobile station can be reduced.
- data is bursty, and the ratio of time during which data is not spoken is long, so that the effect of reducing mobile station consumption by stopping communication is great.
- the ⁇ 1 which is given to the synchronization Ifct at a predetermined synchronization interpal can be synchronized with the ⁇ 1 which is poor in transmission and requires time for synchronization establishment. It becomes possible. Therefore, in the present invention, the state
- the Hi? Information can be transmitted to the mobile station, and the ⁇ of the packet ⁇ word can be reduced and the throughput can be improved.
- the present invention reduces the consumption m ⁇ in the waiting state of the packet and reduces the consumption while waiting for the packet while prompting the user to request the data.
- the effect of being able to make a packet week is obtained.
- the present invention is directed to a mobile communication system, a base station, a mobile station, and a non-serial control method used for the mobile communication system, and particularly to a high-speed data transmission such as an HSDPA (High Speed Downlink Packet Access) service in a mobile communication system. Suitable for applications such as transfer.
- HSDPA High Speed Downlink Packet Access
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Abstract
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JP2005505462A JPWO2004093476A1 (ja) | 2003-04-16 | 2004-04-16 | 移動通信システム、基地局、移動局、及びそれらに用いる無線通信方法 |
US10/553,236 US7403789B2 (en) | 2003-04-16 | 2004-04-16 | Synchronization establishment between a mobile station and base station system and method used for them |
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US7403789B2 (en) | 2008-07-22 |
US20060058051A1 (en) | 2006-03-16 |
JPWO2004093476A1 (ja) | 2006-07-13 |
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