WO2006118303A1 - 伝送速度制御方法、移動局及び無線基地局 - Google Patents
伝送速度制御方法、移動局及び無線基地局 Download PDFInfo
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- WO2006118303A1 WO2006118303A1 PCT/JP2006/309161 JP2006309161W WO2006118303A1 WO 2006118303 A1 WO2006118303 A1 WO 2006118303A1 JP 2006309161 W JP2006309161 W JP 2006309161W WO 2006118303 A1 WO2006118303 A1 WO 2006118303A1
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- user data
- transmission rate
- base station
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- radio base
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
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- 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
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
- H04B7/264—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for data rate control
Definitions
- the present invention relates to a transmission rate control method, a mobile station, and a radio base station for controlling the transmission rate of uplink user data.
- the radio resources of the radio base station NodeB In consideration of transmission power, mobile station UE transmission processing performance, transmission speed required by higher-level applications, etc., determine the transmission speed of the dedicated channel, and move according to the Layer 3 (Radio Resource Control Layer) message. It is configured to notify the determined transmission rate of the dedicated channel to each of the station UE and the radio base station NodeB.
- Layer 3 Radio Resource Control Layer
- the radio network controller RNC is an apparatus that exists above the radio base station NodeB and controls the radio base station NodeB and the mobile station UE.
- the radio network controller RNC normally controls a large number of radio base stations NodeB, as shown in FIG.
- a high-speed channel for example, about 1 to: LOOms
- Non-Patent Document 1 in a conventional mobile communication system using "uplink enhancement", the mobile station UE reduces the transmission rate of uplink user data from the radio base station NodeB. If a relative rate control channel (RGCH) is received (including the “Down” command), it is configured to reduce the currently used uplink data transmission rate. .
- RGCH relative rate control channel
- Non-Patent Document 1 a HARQ scheme is applied to a mobile communication system using a conventional "uplink genno, sentence". Therefore, the radio base station NodeB transmits a positive acknowledgment signal (Ack) to the mobile station every time the reception decoding process for each transmission data block constituting the uplink user data is successful, and the reception -If the decoding process is unsuccessful, it is configured to send a negative acknowledgment signal (Nack) to the mobile station.
- Ack positive acknowledgment signal
- Nack negative acknowledgment signal
- the mobile station UE repeats transmission of the same transmission data block until a positive acknowledgment signal (Ack) is received or until the maximum number of retransmissions determined by the radio network controller RNC is reached. It is composed of
- the user equipment UE when the mobile station UE receives the "Down" command via the relative speed control channel (RGCH), the user equipment UE is not limited to the uplink user data regardless of "Ack / Nack / DTX" in HICH. Configured to reduce the data transmission rate.
- the radio base station NodeB determines increase / decrease in the transmission rate of the uplink user data regardless of the result of the reception decoding process of the transmission data block, and the result ("Up" command or
- the “Down” command) is configured to be notified to the mobile station UE via the relative speed control channel (RGCH).
- RGCH relative speed control channel
- Non-Patent Document 1 3GPP TSG-RAN TS25.309 V6.2.0
- the present invention has been made in view of the above points, and in a mobile communication system using a conventional "uplink enhancement", a relative speed control channel (RGC) is used.
- RRC relative speed control channel
- the transmission rate control method, mobile station, and radio base station that can prevent unintended uplink user data transmission rate reduction by radio base station NodeB due to erroneous detection of the “Down” command in (H) and improve radio quality.
- the purpose is to provide.
- a first feature of the present invention is a transmission rate control method for controlling a transmission rate of uplink user data, where the radio base station has successfully received the uplink user data transmitted from the mobile station.
- the gist of the present invention is to include a step of transmitting a relative speed control channel instructing the mobile station to reduce the transmission speed of the uplink user data.
- a second feature of the present invention is a transmission rate control method for controlling the transmission rate of uplink user data, and only when a mobile station receives a positive delivery confirmation signal from a radio base station.
- a third feature of the present invention is a mobile station that transmits uplink user data, and reduces the transmission rate of the uplink user data only when a positive acknowledgment signal is received from a radio base station. Is configured to reduce the transmission rate of the uplink user data according to the relative speed control channel indicating that! The gist is to provide a transmission rate controller.
- a fourth feature of the present invention is a radio base station used in a transmission rate control method for controlling the transmission rate of uplink user data, wherein the reception of uplink user data transmitted by a mobile station is successful.
- a relative speed control channel transmitting unit configured to transmit a relative speed control channel instructing the mobile station to reduce the transmission rate of the uplink user data only when This is the gist.
- FIG. 1 is a functional block diagram of a mobile station of a mobile communication system according to a first embodiment of the present invention.
- FIG. 2 is a functional block diagram of a baseband signal processing unit in a mobile station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 3 is a functional block diagram of a MAC-e processing unit of a baseband signal processing unit in the mobile station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 4 is a functional block diagram of a radio base station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 5 is a functional block diagram of a baseband signal processing unit in the radio base station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 6 is a functional block diagram of MAC-e and layer 1 processing unit (uplink configuration) in the baseband signal processing unit of the radio base station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 6 is a functional block diagram of MAC-e and layer 1 processing unit (uplink configuration) in the baseband signal processing unit of the radio base station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 7 shows MAC-e in the baseband signal processing unit of the radio base station of the mobile communication system according to the first embodiment of the present invention and MAC-in of the layer 1 processing unit (uplink configuration). It is a functional block diagram of an e function part.
- FIG. 8 is a functional block diagram of a radio network controller of the mobile communication system according to the first embodiment of the present invention.
- FIG. 9 is a flowchart showing an operation of the radio base station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 10 is a flowchart showing an operation of the mobile station of the mobile communication system according to the first embodiment of the present invention.
- FIG. 11 is an overall configuration diagram of a general mobile communication system.
- FIGS. 12 (a) to 12 (c) are diagrams for explaining an operation when transmitting burst data in a conventional mobile communication system.
- the mobile communication system according to the present embodiment includes a plurality of radio base stations NodeB # 1 to # 5 and a radio network controller RNC as shown in FIG.
- HSDPA high-power digital signal
- EUL uplink enhancement
- HARQ retransmission control N process stop undo
- the enhanced dedicated physical data channel (E-DPDC H) and the enhanced dedicated physical control channel (E-DPCCH) power are configured as the enhanced dedicated physical channel (E-DPCH) and the dedicated physical data.
- a dedicated physical channel (DPCH) consisting of a channel (DPDCH: Dedicated Physical Data Channel) and a dedicated physical control channel (DPCCH) is used.
- the enhanced dedicated physical control channel is a transmission format number for defining the E-DPDCH transmission format (transmission block size, etc.), HA It transmits EUL control data such as information on RQ (number of retransmissions, etc.) and information on scheduling (transmission power and buffer retention in mobile station UE, etc.).
- the enhanced dedicated physical data channel (E-DPDCH) is mapped to the enhanced dedicated physical control channel (E-DPCCH) and transmitted through the enhanced dedicated physical control channel (E-DPCCH). Based on the EUL control data, user data for the mobile station UE is transmitted.
- E-DPDCH enhanced dedicated physical data channel
- E-DPCCH enhanced dedicated physical control channel
- the dedicated physical control channel is a TFCI (Transport Format Combination Indicator) that identifies the symbol used for RAKE combining and SIR measurement, and the transmission format of the uplink dedicated physical data channel (DPDCH). ) And control data such as transmission power control bits in the downlink.
- TFCI Transport Format Combination Indicator
- the dedicated physical data channel (DPDCH) is mapped to the dedicated physical control channel (DPCCH), and based on the control data transmitted on the dedicated physical control channel (DPCCH), Send user data. However, if there is no user data to be transmitted to the mobile station UE, the dedicated physical data channel (DPDCH) is not transmitted! /.
- RACH random access channel
- the high-speed dedicated physical control channel (HS-DPCCH) is a downlink quality identifier (CQI: Channel
- the mobile station UE includes a bus interface 31, a call processing unit 32, a baseband processing unit 33, an RF unit 34, and a transmission / reception antenna 35. ing.
- Such a function may exist independently as hardware, or may be partly or wholly integrated, or may be configured by a software process. Also good.
- the bus interface 31 uses the user data output from the call processing unit 32 for other functions. Configured to be transferred to a unit (for example, a functional unit related to an application). Also
- the bus interface 31 is configured to transfer user data transmitted from another functional unit (for example, a functional unit related to an application) to the call processing unit 32.
- another functional unit for example, a functional unit related to an application
- the call processing unit 32 is configured to perform call control processing for transmitting and receiving user data.
- the baseband signal processing unit 33 performs, on the baseband signal transmitted from the RF unit 34, layer 1 processing including despreading processing, RAKE combining processing, and FEC decoding processing, and MAC-e processing and MAC processing. It is configured to transmit user data obtained by performing MAC processing including -d processing and RLC processing to the call processing unit 32!
- the baseband signal processing unit 33 performs RLC processing, MAC processing, and layer 1 processing on the user data transmitted from the call processing unit 32, generates a baseband signal, and transmits the baseband signal to the RF unit 34. It is configured to
- the RF unit 34 generates a baseband signal by performing detection processing, filtering processing, quantization processing, and the like on the signal in the radio frequency band received via the transmission / reception antenna 35, and sends it to the baseband signal processing unit 33. Configured to send.
- the RF unit 34 is configured to convert the baseband signal transmitted from the baseband signal processing unit 33 into a radio frequency band signal.
- the baseband signal processing unit 33 includes an RLC processing unit 33a, a MAC-d processing unit 33b, a MAC-e processing unit 33c, and a layer 1 processing unit 33d. ing.
- the RLC processing unit 33a is configured to perform processing (RLC processing) in the higher layer of Layer 2 on the user data transmitted from the call processing unit 32 and transmit the processed data to the MAC-d processing unit 33b. Has been.
- the MAC-d processing unit 33b is configured to add a channel identifier header and create a transmission format in the uplink based on the limit of the transmission power in the uplink.
- the MAC-e processing unit 33c includes an E-TFC selection unit 33cl and a HARQ processing unit 33c2.
- the E-TFC selection unit 33cl is based on a scheduling signal (such as a relative speed control channel (RGCH)) transmitted from the radio base station NodeB, and is associated with an enhanced physical data channel (E-DPDCH) and an enhanced signal. Configured to determine the transmission format (E—TFC) of the physical control channel (E-DPCCH)! RU
- a scheduling signal such as a relative speed control channel (RGCH)
- E-DPDCH enhanced physical data channel
- E-DPCCH physical control channel
- the E-TFC selection unit 33cl transmits transmission format information (transmission data block size, enhanced dedicated physical data channel (E-DP DCH) and dedicated physical control channel (DPCCH)) about the determined transmission format.
- the transmission format ratio is transmitted to the layer 1 processing unit 33d, and the determined transmission format information is transmitted to the HARQ processing unit 33c2.
- the E-TFC selection unit 33cl transmits next only when receiving a positive acknowledgment signal (Ack) for the transmission data block constituting the uplink user data transmitted last time from the radio base station NodeB. Instructing to reduce the transmission rate of the uplink user data (Ack)
- RGCH relative speed control channel
- the powerful scheduling signal is information broadcasted in the cell where the mobile station UE is located, and all mobile stations located in the cell or the cell is located. Control information for a particular group of mobile stations.
- the HARQ processing unit 33c2 performs process management of “N process stop undo”, and is based on a delivery confirmation signal (Ack / Nack for uplink data) received by the radio base station Node B! /, Configured to transmit user data in the uplink! RU
- the HARQ processing unit 33c2 determines whether or not the downlink user data reception process has been successful based on the CRC result input from the layer 1 processing unit 33d. Then, the HARQ processing unit 33c2 generates a delivery confirmation signal (Ack or Nack for downlink user data) based on the strong determination result and transmits it to the layer 1 processing unit 33d. In addition, when the above determination result is OK, the H ARQ processing unit 33c2 transmits the downlink user data input from the layer 1 processing unit 33d to the MAC-d processing unit 33d.
- a delivery confirmation signal Ack or Nack for downlink user data
- the radio base station NodeB includes an HWY interface 11, a baseband signal processing unit 12, a call control unit 13, and one or a plurality of transmission / reception units. 14 And one or a plurality of amplifier units 15 and one or a plurality of transmission / reception antennas 16.
- the HWY interface 11 is an interface with the radio network controller RNC.
- the HWY interface 11 is configured to receive user data to be transmitted to the mobile station UE via the downlink from the radio network controller RNC and to input the user data to the baseband signal processing unit 12. .
- the HWY interface 11 is configured to receive control data for the radio base station NodeB from the radio network controller RNC and input it to the call controller 13.
- the HWY interface 11 acquires user data included in an uplink signal that has also received the mobile station UE power from the baseband signal processing unit 12 via the uplink, and transmits the user data to the radio network controller RNC. Is configured to do. Further, the HWY interface 11 is configured to acquire control data for the radio network controller RNC from the call controller 13 and transmit it to the radio network controller RNC.
- the baseband signal processing unit 12 performs RLC processing, MAC processing (MAC-d processing or MAC-e processing), and layer 1 processing on user data acquired from the HWY interface 11, and performs baseband signal processing. Is generated and transferred to the transceiver 14
- the downlink MAC processing includes HARQ processing, scheduling processing, transmission rate control processing, and the like.
- downlink layer 1 processing includes channel coding processing and spreading processing of user data.
- the baseband signal processing unit 12 performs layer 1 processing, MAC processing (MAC-e processing and MAC-d processing), and RLC processing on the baseband signal that has also acquired the transmission / reception unit 14 power, and performs user processing. It is configured to extract data and transfer it to the HWY interface 11.
- uplink MAC processing includes HARQ processing, scheduling processing, transmission rate control processing, header discard processing, and the like.
- layer 1 processing in the uplink includes despreading processing, RAKE combining processing, error correction decoding processing, and the like.
- the call control unit 13 performs call control based on the control data acquired from the HWY interface 11. The processing is performed.
- the transmission / reception unit 14 is configured to perform a process of converting the baseband signal acquired from the baseband signal processing unit 12 into a radio frequency band signal (downlink signal) and transmit the signal to the amplifier unit 15. .
- the transceiver unit 14 is configured to perform a process of converting a radio frequency band signal (uplink signal) acquired from the amplifier unit 15 into a baseband signal and transmit the baseband signal to the baseband signal processing unit 12.
- the amplifier unit 15 is configured to amplify the downlink signal acquired from the transmission / reception unit 14 and transmit the amplified downlink signal to the mobile station UE via the transmission / reception antenna 16.
- the amplifier unit 15 is configured to amplify the uplink signal received by the transmission / reception antenna 16 and transmit it to the transmission / reception unit 14.
- the baseband signal processing unit 12 includes an RLC processing unit 121, a MAC-d processing unit 122, and a MAC-e and layer 1 processing unit 123.
- the MAC-e and layer 1 processing unit 123 is configured to perform despreading processing, RAKE combining processing, error correction decoding processing, HARQ processing, and the like on the baseband signal acquired from the transmission / reception unit 14. Yes.
- the MAC-d processing unit 122 is configured to perform a header discarding process on the output signals from the MAC-e and the layer 1 processing unit 123.
- the RLC processing unit 121 is configured to perform retransmission control processing in the RLC layer, RLC-SDU reconstruction processing, and the like on the output signal from the MAC-d processing unit 122.
- the MAC-e and layer 1 processing unit (uplink configuration) 123 includes a DPCC H RAKE unit 123a, a DPDCH RAKE unit 123b, an E-DPCCH RAKE unit 123c, and an E- DPDCH RAKE unit 123d, HS-DPCCH RAKE unit 123e, RACH processing unit 123f, TFCI decoder 123g, nofers 123h and 123m, re-despreading units 123i and 123n, FEC decoder units 123j and 123p
- the E-DPCCH decoder unit 123k, the MAC-e function unit 1231, the HARQ buffer 123 ⁇ , and the MAC-hs function unit 123q are provided.
- the E-DPCCH RAKE unit 123c is included in the baseband signal transmitted from the transceiver unit 14.
- the enhanced dedicated physical control channel (E-DPCCH) is subjected to despreading processing and RAKE combining processing using the pilot symbols included in the dedicated physical control channel (DPCCH)! ! Speak.
- the E-DPCCH decoder unit 123k performs a decoding process on the RAKE combined output of the E-DPCCH RAKE unit 123c to obtain a transmission format number, information on HARQ, information on scheduling, etc.
- e Function unit 1231 is configured to be input.
- the E-DPDCH RAKE unit 123d transmits the transmission format transmitted from the MAC-e function unit 1231, for the enhanced dedicated physical data channel (E-DPDCH) in the baseband signal transmitted from the transmission / reception unit 14. It is configured to perform despreading processing using information (number of codes) and RAKE combining processing using pilot symbols included in the dedicated physical control channel (DPCCH).
- E-DPDCH enhanced dedicated physical data channel
- the noffer 123m Based on the transmission format information (number of symbols) transmitted from the MAC-e function unit 1231, the noffer 123m is configured to accumulate the RAKE combined output of the E-DPDCH RAKE unit 123d.
- re-despreading unit 123 ⁇ Based on the transmission format information (spreading rate) transmitted from MAC-e function unit 1231, re-despreading unit 123 ⁇ performs the RAKE combined output of E-DPDCH RAKE unit 123d stored in buffer 123m. Thus, it may be configured to perform despreading processing.
- the HARQ buffer 123 ⁇ is configured to store the despreading processing output of the re-despreading unit 123 ⁇ based on the transmission format information transmitted from the MAC-e function unit 1231.
- the FEC decoder unit 123 ⁇ Based on the transmission format information (transmission data block size) transmitted from the MAC-e function unit 1231, the FEC decoder unit 123 ⁇ performs the despreading process of the re-despreading unit 123 ⁇ stored in the HARQ buffer 123 ⁇ . An error correction decoding process (FEC decoding process) is performed on the output.
- the MAC-e function unit 1231 transmits the transmission format information (the number of codes, the number of symbols, the spread) based on the transmission format number, HARQ information, scheduling information, etc. acquired from the E-DPCCH decoder unit 123k. Rate, transmission data block size, etc.) It is comprised so that it may calculate and output.
- the MAC-e function unit 1231 includes a reception processing command unit 12311 and a HAR
- a Q management unit 12312 and a scheduling unit 12313 are provided.
- the reception processing command unit 12311 is configured to transmit the transmission format number, information on HARQ, and information on scheduling input from the E-DPCCH decoder unit 123k to the HARQ management unit 12312.
- reception processing command unit 12311 is configured to transmit information related to scheduling input from the E-DPCCH decoder unit 123k to the scheduling unit 12313.
- reception processing command section 12311 is configured to output transmission format information corresponding to the transmission format number input from the E-DPCCH decoder section 123k!
- the HARQ management unit 12312 determines whether or not the reception processing of the uplink user data is successful based on the CRC result input from the FEC decoder unit 123p. Then, the H ARQ management unit 12312 generates a delivery confirmation signal (Ack or Nack) based on the strong determination result and transmits it to the downlink configuration of the baseband signal processing unit 12. Further, when the above determination result is OK, the HARQ management unit 12312 transmits the uplink user data input from the FEC decoder unit 123p to the radio network controller RNC.
- a delivery confirmation signal Ack or Nack
- the HARQ management unit 12312 clears the soft decision information stored in the HARQ buffer 123 ⁇ .
- the HARQ management unit 12312 accumulates uplink user data in the HARQ buffer 123 ⁇ .
- the HARQ management unit 12312 transfers the above-described determination result to the reception processing command unit 12311.
- the reception processing command unit 12311 based on the received determination result, provides hardware resources to be prepared for the next TTI. Is sent to the E-DPDCH RAKE unit 123d and the buffer 123m, and the HARQ buffer 123 ⁇ is notified for securing resources.
- the reception processing command unit 12311 sends an H to the buffer 123m and the FEC decoder unit 123 ⁇ when there is uplink user data stored in the buffer 123m for each cell. Instructs HARQ buffer 123 ⁇ and FEC decoder 123 ⁇ to perform FEC decoding processing after adding the uplink user data in the process corresponding to the TTI stored in ARQ buffer 123o and the newly received uplink user data. To do.
- the scheduling unit 12313 may be configured to transmit a scheduling signal (such as a relative rate control channel (RGCH)) via the downlink configuration.
- a scheduling signal such as a relative rate control channel (RGCH)
- the scheduling unit 12313 transmits the next transmission to the mobile station UE only when the mobile station UE power has successfully received and decoded the transmission data block constituting the previously transmitted uplink user data. It is configured to transmit a relative rate control channel (RGCH) that indicates that the transmission rate of the uplink user data is to be reduced (including the “Down” command).
- RGCH relative rate control channel
- the radio network controller RNC is an apparatus positioned above the radio base station NodeB, and is configured to control radio communication between the radio base station NodeB and the mobile station UE. ing.
- the radio network controller RNC includes an exchange interface 51, an LLC layer processing unit 52, a MAC layer processing unit 53, a media signal processing unit 54, A base station interface 55 and a call control unit 56 are provided.
- the switching center interface 51 is an interface with the switching center 1.
- the switching center interface 51 transfers the downlink signal transmitted from the switching center 1 to the LLC layer processing unit 52, and transfers the uplink signal transmitted from the LLC layer processing unit 52 to the switching center 1. It is configured.
- the LLC layer processing unit 52 is configured to perform LLC (Logical Link Control) sublayer processing such as header processing such as sequence numbers or trailer combining processing. After performing LLC sublayer processing, the LLC layer processing unit 52 transmits an uplink signal to the switching center interface 51, and transmits a downlink signal to the MAC layer processing unit 53. It is composed!
- LLC Logical Link Control
- the MAC layer processing unit 53 is configured to perform MAC layer processing such as priority control processing and header addition processing. After performing the MAC layer processing, the MAC layer processing unit 53 transmits the uplink signal to the LLC layer processing unit 52 and transmits the downlink signal. Is configured to transmit to the base station interface 55 (or the media signal processing unit 54).
- the media signal processing unit 54 is configured to perform media signal processing on an audio signal or a real-time image signal.
- the media signal processing unit 54 is configured to perform media signal processing, and then transmit an uplink signal to the MAC layer processing unit 53 and transmit a downlink signal to the base station interface 55. ! RU
- the base station interface 55 is an interface with the radio base station NodeB.
- the base station interface 55 transfers the uplink signal transmitted from the radio base station NodeB to the MAC layer processing unit 53 (or media signal processing unit 54), and the MAC layer processing unit 53 (or media signal processing unit). 54)
- the power is also configured to forward the transmitted downlink signal to the radio base station NodeB.
- the call control unit 56 is configured to perform radio resource management processing, channel setting and release processing by layer 3 signaling, and the like.
- radio resource management includes call admission control, node over control, and the like.
- FIG. 9 shows the operation of the radio base station NodeB according to the first embodiment of the present invention
- FIG. 10 shows the operation of the radio base station NodeB according to the first embodiment of the present invention.
- step S101 the radio base station NodeB receives transmission data blocks constituting uplink user data transmitted from the mobile station UE.
- step S102 and S103 if the reception decoding process for the transmission data block is successful, and if it is necessary and possible to reduce the transmission rate of the uplink user data, the radio base station in step S104 Station NodeB sends a relative speed control channel (RGCH) containing a “Down” command.
- RGCH relative speed control channel
- step S105 the radio base station NodeB does not transmit the relative speed control channel (RGCH) including the “Down” command!
- step S201 the mobile station UE receives the HICH.
- step S204 when a positive acknowledgment signal (Ack) is received in HICH and the received relative speed control channel (RGCH) includes the "Down" 3 command, In step S204, the mobile station UE reduces the transmission rate of the uplink user data.
- Ack positive acknowledgment signal
- RGCH received relative speed control channel
- step S205 the mobile station UE transmits the upper user data. Do not reduce the speed.
- the "Do w n " command of the relative speed control channel (RGCH) is used. It is possible to provide a transmission rate control method, a mobile station, and a radio base station that can prevent the transmission rate of uplink user data unintended by the radio base station NodeB from being erroneously detected and improve radio quality.
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Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN200680015166.4A CN101171871B (zh) | 2005-05-02 | 2006-05-02 | 传送速度控制方法、移动台及无线基站 |
DE602006014961T DE602006014961D1 (de) | 2005-05-02 | 2006-05-02 | Übertragungsraten-steuerverfahren, mobilstation und funkbasisstation |
US11/913,225 US8102771B2 (en) | 2005-05-02 | 2006-05-02 | Transmission rate control method, mobile station and radio base station |
EP06746011A EP1887826B1 (en) | 2005-05-02 | 2006-05-02 | Transmission rate control method, mobile station and radio base station |
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JP2005-134646 | 2005-05-02 | ||
JP2005134646A JP4643354B2 (ja) | 2005-05-02 | 2005-05-02 | 伝送速度制御方法、移動局及び無線基地局 |
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US (1) | US8102771B2 (ja) |
EP (1) | EP1887826B1 (ja) |
JP (1) | JP4643354B2 (ja) |
KR (1) | KR100945823B1 (ja) |
CN (1) | CN101171871B (ja) |
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WO2008096627A1 (ja) * | 2007-02-05 | 2008-08-14 | Ntt Docomo, Inc. | 基地局装置、移動局、無線通信システム及び通信制御方法 |
US8260309B2 (en) | 2008-01-24 | 2012-09-04 | Ntt Docomo, Inc. | Transmission rate control method and radio base station |
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TW201251496A (en) * | 2006-12-28 | 2012-12-16 | Interdigital Tech Corp | Efficient uplink operation with high instantaneous data rates |
KR101457688B1 (ko) | 2007-10-04 | 2014-11-12 | 엘지전자 주식회사 | 제어채널의 수신오류를 검출하는 데이터 전송방법 |
JP2014229985A (ja) * | 2013-05-20 | 2014-12-08 | 富士通株式会社 | 通信システム、通信制御方法、移動局、及び、制御装置 |
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- 2006-05-02 WO PCT/JP2006/309161 patent/WO2006118303A1/ja active Application Filing
- 2006-05-02 EP EP06746011A patent/EP1887826B1/en active Active
- 2006-05-02 DE DE602006014961T patent/DE602006014961D1/de active Active
- 2006-05-02 KR KR1020077026485A patent/KR100945823B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
DE602006014961D1 (de) | 2010-07-29 |
EP1887826A1 (en) | 2008-02-13 |
US8102771B2 (en) | 2012-01-24 |
KR100945823B1 (ko) | 2010-03-05 |
CN101171871A (zh) | 2008-04-30 |
CN101171871B (zh) | 2012-12-26 |
US20090093218A1 (en) | 2009-04-09 |
EP1887826A4 (en) | 2009-01-21 |
JP2006311461A (ja) | 2006-11-09 |
JP4643354B2 (ja) | 2011-03-02 |
KR20080006616A (ko) | 2008-01-16 |
EP1887826B1 (en) | 2010-06-16 |
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