WO2005107301A1 - 制御局装置、基地局装置、受信方法、伝送方法及び通信方法 - Google Patents
制御局装置、基地局装置、受信方法、伝送方法及び通信方法 Download PDFInfo
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- WO2005107301A1 WO2005107301A1 PCT/JP2005/007396 JP2005007396W WO2005107301A1 WO 2005107301 A1 WO2005107301 A1 WO 2005107301A1 JP 2005007396 W JP2005007396 W JP 2005007396W WO 2005107301 A1 WO2005107301 A1 WO 2005107301A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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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
-
- 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
- H04W28/10—Flow control between communication endpoints
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/12—Access point controller devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/14—Backbone network devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
Definitions
- WCDMA Wideband Code Division Multiple Access
- UMTS Universal Mobile Telecommunications System
- the data generated by the application of UE 11 is assembled into an IP packet and sent to Node Bl 2.
- Node B 12 baseband processing and the like for wireless transmission by WCDMA are performed, and processing such as demodulation and HARQ decoding Z error correction is performed.
- processing of layer 2 (hereinafter referred to as “L2”) and layer 1 (hereinafter referred to as “L1”) for wired transmission is performed, and is sent to the RNC 13 via the IubZlur interface.
- L2 layer 2
- L1 layer 1
- the RNC 13 selects a packet with the highest communication quality from the packets received from the plurality of Node Bs 12 and restores it into an IP packet.
- a packet control node is connected between the ground network and the wireless network.
- a downlink mobile communication system is known which relays packets in the U.S. Pat.
- the Node B notifies the packet control node of a request for the transfer rate of packets addressed to the UE according to the state of the current downlink transmission rate of the radio channel for each UE, and receives this notification.
- the packet control node forwards the packet addressed to the UE to the Node B at the requested transfer rate.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-171572
- the transmission time interval (TTI) of the uplink radio channel becomes shorter than that of the conventional device.
- the Node B transmits data to the RNC every transmission time interval, which is shorter than in the prior art, so the number of frames to be processed per unit time by the RNC increases, and an IP header for data transfer, etc. Has the problem of increased overhead.
- An object of the present invention is to provide a control station apparatus and a base capable of reducing an increase in traffic volume and preventing an increase in overhead at the time of data transfer even when the transmission time interval is shortened.
- a station apparatus a receiving method, a transmission method and a communication method.
- a control station apparatus comprises an acquisition means for receiving, from each base station apparatus, a control information portion of the packet data including information of a data portion of packet data prior to the data portion; Sending the quality information of the highest quality among the quality information which is information indicating the quality of the data portion included in the control information portion received at Control frame processing means for instructing the base station apparatus to send the data part, and the base station apparatus sending the data part instructed by the control frame processing means And data frame processing means for performing predetermined protocol processing on the data portion.
- the base station apparatus comprises quality information generation means for generating quality information which is information indicating the quality of the data part of packet data, and the data part of the packet data for transmission to the control station apparatus.
- Data frame processing means for generating, control frame processing means for generating control information portion of the packet data including the quality information generated by the quality information generating means, and the above generated by the control frame processing means A control information portion and transmission means for transmitting the data portion generated by the data frame processing means to the control station apparatus, the control frame processing means transmitting the control information portion transmitted by the transmission means And the data part is transmitted from the transmission means when the quality information contained in the information is better than other stations.
- the receiving method of the present invention comprises the steps of: receiving from a base station apparatus a control information portion of the packet data including information of a data portion of packet data prior to the data portion; Instructing the base station apparatus that has sent the quality information with the highest quality among the quality information that is information indicating the quality of the data portion included in the step of: sending the data portion; Performing predetermined protocol processing on the data part sent from the base station apparatus that has been instructed to send the data part.
- the transmission method of the present invention comprises the steps of generating quality information which is information indicating the quality of the data part of packet data, and generating the data part of the packet data for transmission to the control station apparatus.
- the data part is controlled to be transmitted when the quality information included in the control information part receives information better than other stations.
- the communication method of the present invention comprises the steps of generating a data portion of the packet data for transmission to the control station device, generating quality information which is information indicating the quality of the data portion, and generating Generating a control information portion of the packet data including the quality information and the information of the data portion; transmitting the generated control information portion from a plurality of base station devices to the control station device; The control station device receives the control information portion from the plurality of base station devices, and sends the quality information with the highest quality among the quality information included in the received control information portion. Instructing the base station apparatus to send the data part, and the data part instructed to be transmitted from the control station apparatus. The steps of: transmitting from the ground station apparatus to the control station apparatus; and performing predetermined protocol processing on the data part sent from the base station apparatus instructed to send the data part It was made to do.
- an increase in traffic volume can be reduced, and an increase in overhead at the time of data transfer can be prevented even when the transmission time interval is shortened.
- FIG. 1 A diagram showing the configuration of a mobile communication system
- FIG. 3 A block diagram showing a configuration of a base station apparatus according to Embodiment 1 of the present invention
- FIG. 6 A block diagram showing the configuration of the communication partner of the mobile terminal according to Embodiment 1 of the present invention
- FIG. 7 A diagram showing a protocol configuration according to Embodiment 1 of the present invention.
- FIG. 8 A diagram showing an EDCH FP MDC control frame according to Embodiment 1 of the present invention.
- FIG. 9 A diagram showing an EDCH FP MDC control response frame according to Embodiment 1 of the present invention.
- FIG. 10 A diagram showing an EDCH FP MDC data frame according to Embodiment 1 of the present invention.
- FIG. 11 A block diagram showing a configuration of a control station apparatus according to Embodiment 2 of the present invention 12 is a block diagram showing a configuration of a data frame processing unit according to Embodiment 2 of the present invention.
- FIG. 13 is a diagram showing an EDCH FP MDC data frame according to Embodiment 2 of the present invention. Best form
- EDCH Enhanced Dedicated Channel
- the L2ZL1 unit 101 outputs the restored EDCH FP MDC data frame to the data frame processing unit 102, and outputs the restored EDCH FPMDC control frame to the control frame processing unit 103.
- the L2ZL1 unit 101 performs L2 processing and L1 processing on the EDCH FP MDC control response frame input from the control frame processing unit 103, and transmits it to the Node B.
- control frame processing section 103 receives information on the CRC result (hereinafter referred to as “CRCI”) set in EDCH FP MDC control frame. Based on the information) and estimated quality information (hereinafter referred to as “QE”) (quality information), as HARQ Operation which is data processing instruction information corresponding to a sequence number (hereinafter referred to as “SN”). It generates an EDCH FP MDC control response frame in which any of ACK, NACK, or Flas h is set, and outputs it to the L2ZL1 unit 101.
- CRC result hereinafter referred to as “CRCI”
- QE estimated quality information
- HARQ Operation which is data processing instruction information corresponding to a sequence number
- control frame processing section 103 selects the same frame of SN from the EDCH FP MDC control frames of a plurality of Node Bs input from L2 / L1 section 101, and compares CRCI with CRCI If there is an OK frame, the QE such as estimated bit error rate information is further compared to select the frame with the best quality, ie, the frame with the smallest estimated bit error rate. Then, the control frame processing unit 103 assembles the EDCH FP control response frame in which the SN and the ACK of the selected frame are set, and the smallest estimated bit error rate is transmitted to the Node B that has sent the frame.
- the assembled EDCH FP control response frame is output to the L2ZL1 unit 101 to instruct sending of the MDC data frame (data portion).
- the control frame processing unit 103 sends the EDCH FP control response frame in which the SN and Flash of the selected frame are set. & Output to L2ZL1 section 101 to transmit to the corresponding Node B.
- the control frame processing unit 103 assembles an E DCH FP control response frame in which the SN and NACK of the selected frame are set, and transmits it to all Node Bs.
- RLC section 105 checks the sequence number of the RLC header with respect to the RLC PDU input from MAC-d section 104, and if it is normal, removes the RLC header and performs PDCP (Packet).
- PDCP Packet
- the RLC PDU is sent back to the mobile terminal's RLC.
- the L2ZL1 unit 108 performs L2 processing for wired transmission and L1 processing for packet data input from the GTP-u unit 107, and outputs the processed data to the CN via the Iu interface.
- FIG. 3 is a block diagram showing the configuration of the Node B 200.
- the MAC-e processing unit 202 and the scheduler unit 203 constitute a MAC-e unit 207.
- the control frame processing unit 204 and the data frame processing unit 205 constitute an EDCH FP unit 208.
- the PHY unit 201 performs L1 processing for wired transmission on packet data received from the UE, and outputs the processed packet data to the MAC-e processing unit 202. Also, the PHY unit 201 performs, for example, baseband processing for wireless transmission by WCDMA on the transmission signal including the retransmission request signal input from the MAC-e processing unit 202 by scheduling by the scheduler unit 203, to the UE. Send.
- the MAC-e processing unit 202 which is a quality information generation unit, demodulates the data input from the PHY unit 201, and assembles a MAC-d PDU by performing HARQ decoding and error correction.
- the MAC-e processing unit 202 receives information on CRCI indicating the presence or absence of an error in the EDCH FP MDC data frame by HARQ, and EDCH FP MDC data by HARQ. It outputs QE quality information and the like such as estimated bit error rate information in the data frame to the control frame processing unit 204 as HARQ status information.
- the MAC-e processing unit 202 When the MAC-e processing unit 202 is instructed by the control frame processing unit 204 to output a MAC-e P DU by the SN, the MAC-e processing unit 202 transmits a data frame processing unit to the assembled MAC-e PDU of the corresponding SN. Output to 205. When the MAC-e processing unit 202 instructs the discard of the MAC-e PDU from the control frame processing unit 204 by the SN, the MAC-e processing unit 202 discards the MAC-e PDU of the corresponding SN.
- the MAC-e processing unit 202 when the MAC-e processing unit 202 is instructed to retransmit the HARQ of the MAC-e PDU from the control frame processing unit 204, such as the SN frame, the retransmission of data corresponding to the corresponding SN is performed.
- the request signal is output to the PHY unit 201.
- the scheduler unit 203 performs scheduling using the channel quality information input from the MAC-e processing unit 202 and the retransmission request input from the control frame processing unit 204 as information for scheduling. That is, the scheduler unit 203 performs scheduling such that the transmission rate is higher as the channel quality is better, and performs scheduling in accordance with the retransmission request input from the control frame processing unit 204. Then, scheduler section 203 outputs scheduling information, which is information on the result of scheduling including information on the set transmission rate, to PHY section 201.
- the scheduler unit 203 receives a retransmission request from the control frame processing unit 204, the timing for scheduling retransmission data can be set arbitrarily. For example, if retransmission data can tolerate a delay, it is possible to delay scheduling, and in case retransmission data can not tolerate a delay, it is also possible to reflect a retransmission request on scheduling immediately after reception.
- the control frame processing unit 204 assembles an EDCH FP MDC control frame including information of CRCI and quality information of QE from the status information of HARQ inputted from the MAC-e processing unit 202, and outputs it to the L2ZL1 unit 206. Do. Further, the control frame processing unit 204 When the EDCH FP MDC control response frame is input from the ZL unit 206, the information set in the EDC H FP MDC control response frame is output to the scheduler unit 203 and the MA-e processing unit 202.
- the control frame processing unit 204 is an ACK indicating that the HARQ Operation of the input EDCH FP MDC control response frame is better than the other stations in the quality information included in the EDCH FP MD C control frame. In this case, it instructs the MAC-e processing unit 202 to output the MAC-e PDU corresponding to the SN.
- the control frame processing unit 204 receives an EDCH FP MDC control response frame including information in which the quality information included in the EDCH FP MDC control frame is better than other stations, the EDCH FP It can be controlled to be transmitted from the MDC data frame force L2ZL1 unit 206.
- the control frame processing unit 204 retransmits the HAR Q of the MAC-e PDU corresponding to the SN to the MAC-e processing unit 202. If the HA RQ Operation of the EDCH FP MDC control response frame that has been input is Flash, the MAC-e processing unit 202 is instructed to discard the MAC- e PDU corresponding to the SN.
- the data frame processing unit 205 assembles an EDCH FP MDC data frame for each TTI from the MAC-to-PDU input from the MAC-to-process unit 202 and outputs the data frame to the L2ZL1 unit 206.
- the L2ZL1 unit 206 performs processing of L2 and processing of L1 for wired transmission on the EDCH FP MDC data frame input to the data frame processing unit 205 and sends it to the RNC via the IubZur interface. Transmit Also, the L2ZL1 unit 206 performs L2 processing for wired transmission and L1 processing for the EDCH FP MDC control frame input from the control frame processing unit 204 and transmits it to the RNC via the IubZlur interface. . Also, the L2ZL1 unit 206 performs L1 processing and L2 processing on the E DCH FP MDC control response frame input from the RNC via the Iub / Iur interface, and outputs the result to the control frame processing unit 204.
- FIG. 4 is a block diagram showing the configuration of the UE 300.
- the AP unit 301 generates data and outputs the data to the TCP / IP unit 302.
- TCP is a protocol that has functions such as flow control and retransmission control to control the amount of data transmission.
- the TCP / IP unit 302 outputs a data input from the AP unit 301 to the PDCP unit 303 after adding a TCP header or the like including a sequence number for TCP retransmission control.
- the PDCP unit 303 compresses the IP header of the IP packet input from the TCP / IP unit 302 and outputs the compressed packet to the RLC unit 304.
- RLC section 304 assembles an RLC PDU by adding an RLC header or the like including a sequence number for retransmission control to packet data input from PDCP section 303, and outputs the result to MAC-d section 305. Do.
- the MAC-e unit 306 performs processing such as HARQ coding and adaptive modulation on the MAC-d PDU input from the MAC-d unit 305 based on the notified scheduling information of the base station apparatus.
- MAC MAC e assemble an e PDU. Then, the MAC-e unit 306 outputs the MAC-e PDU to the PHY unit 307 at the transmission timing notified by the scheduling information.
- the PHY unit 307 performs baseband processing and the like for wireless transmission by WCDMA on the data input from the MAC-e unit 306, and transmits the data to the Node B via the Uu interface.
- FIG. 5 is a block diagram showing the configuration of CN 400.
- the L2ZL1 unit 401 performs processing of L2 and processing of L1 for wireline transmission on packet data to which RNC power is also transmitted and input, and restores it into GTP-u PDU. Then, the L2 ZL1 unit 401 outputs the restored GTP-u PDU to the GTP-u unit 402.
- the IP unit 403 performs IP routing processing on the IP packet input from the GTP-u unit 402. Etc. and output to the L2 ZL1 unit 404.
- the L2ZL1 unit 404 performs L2 processing for wired transmission and L1 processing on packet data input from the IP unit 403, and outputs the processed data to the TE via the Gi interface.
- FIG. 6 is a block diagram showing the configuration of TE 500.
- the L2ZL1 unit 501 performs processing of L2 for wired transmission and processing of L1 on packet data transmitted and input from the CN to restore an IP packet. Then, the L2ZL1 unit 501 outputs the restored IP packet to the TCPZIP unit 502.
- the data generated by AP 301 of UE 300 is assembled into an IP packet in IP, after TCP / IP 302 adds a TCP header including a sequence number for TCP retransmission control.
- TCP / IP 302 adds a TCP header including a sequence number for TCP retransmission control.
- Be In the IP packet compression of the IP header is performed in PDCP 303, and in RLC 304, an RLC header including a sequence number for retransmission control and the like.
- Etc. are assembled and assembled into RLC PDUs.
- RLC PDUs are available on the MAC—d305! After being added MAC header required for MAC processing of individual channel, etc., MAC-e306! /, Node B 200 MAC-e207 power scheduling etc.
- Processing such as HARQ coding and adaptive modulation is performed according to the modulation scheme and coding rate to be notified and assembled into a MAC-e PDU, and a transmission timing instruction notified as MAC-e 207 power-to-speak information such as Node B 200. And are transmitted to the PHY 307 at transmission timing and transmission rate according to the transmission rate instruction.
- the MAC-e PDU is subjected to baseband processing for wireless transmission by WCDMA and the like in the PHY 307, and is sent to the Node B 200 via the wireless link (Uu interface).
- MAC— e207 is the link status of the radio link between multiple UEs 300 and EDCH.
- the transmission timing of each UE 300 and the transmission rate to be used for transmission are determined from the HARQ operation information notified from the FP 208 and notified to the MAC-e 306 of the UE 300.
- the data frame processing unit 205 of the EDCH FP 208 assembles an EDCH FP MDC data frame, when the MAC-d P DU is input from the MAC-e 207. After that, in L2 ZL 1206, L2 processing for wired transmission and L1 processing are performed, and are sent to the RNC 100 via the lub / lur interface. Also, the control frame processing unit 204 of the EDCH FP 208 assembles an E DCH FP MDC control frame from the HARQ status information input from the MAC-e processing unit 202 and outputs the frame to the L2ZL 1206.
- the control frame processing unit 204 of the EDC H FP 208 the information being set is the scheduler unit 203 of the MAC- 207 and the MAC-e processing unit 202 Output to
- the control frame processing unit 103 of the EDCH FP 109 is set to the EDCH FP MDC control frame.
- An EDCH FP MDC control response frame in which HARQ operation is set is generated from the information on the CRCI and QE, and output to the L2ZL 1108.
- the data frame processing unit 102 of the EDCH FP 109 assembles a MAC-d PDU from the ED CH FP MDC data frame input from the L2ZL 1101 and outputs the same to the MAC-dl04.
- the MAC-d PDU is subjected to MAC processing of a dedicated channel in MAC-dL04, and is recovered into an RLC PDU by removing the MAC-d header.
- RLC PDUs the sequence number of the RLC header is checked in RLC 105, and if it is normal, the RLC header is removed, the compressed IP header is decompressed in PDCP 106, and the IP packet is It is restored.
- the IP packet is assembled in GTP-u PDU in GTP-ul 07 with a GTP-u header for data transfer between RNC 100 and CN 400. Thereafter, in L 2 ZL 1108, L2 processing for wired transmission and L1 processing are performed, and are sent to CN 400 via Iu interface.
- L2 processing for wired transmission and L1 processing are performed to be restored as IP packets.
- the IP packet is removed from the IP header by the TCPZIP 502, and the sequence number of the TCP header is analyzed. If it is normal, the TCP header is removed and data is passed to the AP 503. If an error (such as omission) in the sequence number of the TCP header is detected in TCPZIP 502, an ACK TCP packet in which the latest sequence number received correctly is set is assembled and returned to TCPZIP 302 of UE 300. .
- TCPZIP 302 of UE 300 when the ACK TCP packet with the same sequence number is received three times in a row, it is determined that the IP packet is discarded in the network, and the sequence number set in the ACK TCP packet At the same time, it determines that the network is congested, and activates the Fast Retransmission function to lower the TCPZIP 302, 502 transmission rate.
- the RNC receives the state of HARQ from the HARQ of a plurality of Node Bs every processing cycle (TTI) of HARQ, sends back the retransmission execution status to HARQ of Node B, and also performs data processing cycle (TTI) of HARQ. It is transferred from the Node B to the RNC every time.
- TTI processing cycle
- TTI data processing cycle
- FIG. 8 is a diagram showing the configuration of the EDCH FP MDC control frame
- Fig. 9 is a diagram showing the configuration of the EDCH FP MDC control response frame
- Fig. 10 is a diagram showing the configuration of the EDCH FP MDC data frame. It is.
- Header field # 701 of the control frame in Fig. 8 and Header field # 801 of the control frame in Fig. 9 are FT fields # 703 and # 803 indicating whether it is a control frame or a data frame, for error detection of the control frame.
- the Header section # 901 of the data frame in FIG. 10 is the Header CRC field # 905 for error detection in the Header section # 901, the MAC — d PDU Length field # 906 indicating the length of each PDU, and the inside of the frame.
- MAC Configured by NumOfPDU field # 907 indicating the number of PDUs.
- the tail portion # 903 of the data frame in FIG. 10 is the Spare Extension field # 908 for future extension, the Payload CRC field # 909 for error detection of the Payload portion, and the error detection of the Payload portion. Payload for 13 ⁇ 4 field # 910 is configured.
- Payload section of each frame will be described.
- Payload Part # 702 in the EDCH FP MDC Control Frame is an SN field # 706 which is a sequence number for identifying the MAC-e PDU, and C RCI # 707 as status information of the HARQ part of MAC-e part. , QE field # 708 force and so on.
- CRCI # 707 is information on CRCI of data by HARQ.
- QE # 708 is information indicating an estimated bit error rate of data by HARQ.
- CRCI # 707 and QE # 708 are examples of HARQ status information, and other information may be used.
- the status information of HARQ for one MAC-e PDU may be set, and the status information of multiple UEs or multiple MACs-e PDU may be set together.
- Payload section # 802 in the EDCH FP MDC control response frame sets SN field for identifying the MAC-e PDU.
- Operation from RNC 100 to the HARQ section of Node B 200 HARQ Operation field to specify the instruction of # 807 is configured.
- the HARQ Operation field # 807 can take three values: ACK, NAC, or Flash.
- SN set in SN field # 806 is used to determine whether Node B 200 may transmit an EDCH FP MDC data frame to RNC 100 when Node B 200 receives an EDCH FP MDC control response frame. Is referred to.
- Payload section # 902 in the EDCH FP MDC data frame sets the MAC-d PDU in ITT I in the MAC-d PDU1 to n field and transfers it.
- the HARQ of MAC-e processing section 202 of Node B 200 is based on the state of HARQ of own Node B 200 alone. Do. That is, if there is an error in the data received from the UE 300, the Node B 200 performs HARQ retransmission, and if there is no error in the data received from the UE 300, ends the HARQ and transmits the data to the RNC 100.
- the MACs of the other Node Bs 200 may be used. It is possible that there is no error in the data in the HARQ of the e processing unit 202.
- Node B first transmits an EDCH FP MDC control frame to the RNC, and the RNC transmits the CRCI information and QE included in the EDCH FP MDC control frame.
- the RNC transmits the CRCI information and QE included in the EDCH FP MDC control frame.
- FIG. 11 is a block diagram showing a configuration of a Node B 1000 according to Embodiment 2 of the present invention.
- Node B 1000 according to the second embodiment is a data frame processing unit instead of data frame processing unit 205 as shown in FIG. 11 in Node B 200 according to the first embodiment shown in FIG. 3. It has 1001.
- FIG. 11 parts that are the same as in FIG. 3 are given the same reference numerals, and descriptions thereof will be omitted.
- control frame processing unit 204 and the data frame processing unit 1001 constitute an EDCH FP unit 1002.
- FIG. 12 is a block diagram showing the configuration of the data frame processing unit 1001. As shown in FIG. 12
- Data storage unit 1101 stores MAC-d PDUs input from MAC-e processing unit 202 for a predetermined time, and when timing information indicating that the predetermined time has elapsed is input from a timer (not shown), data is stored.
- the MAC-d PDU is output to the data combining unit 1102.
- the data combining unit 1102 collects together the MAC—d PDUs at a predetermined time input from the data storage unit 1101 and outputs them as one EDCH FP MDC user frame to the L2ZL1 unit 206. At this time, the MAC-d PDUs that are combined as one EDCH FP MDC user frame in the data combining unit 1102 are MAC-d PDUs for a plurality of TTIs. Note that, when only TTI's worth of MAC-d PDUs are input before the timing information is input, data combining section 1102 outputs one TTI's worth of MAC-d PDUs as an EDCH FP M DC user frame to L2ZL1 section 206. .
- the notification of the state of HARQ from Node B to RNC, and the presence or absence of retransmission from RNC to Node B, is performed every HARQ cycle (TTI) to suppress the delay of HARQ.
- TTI HARQ cycle
- the RNC since the MAC-d PDUs for a plurality of packets are collectively sent in one transmission, the RNC It is possible to reduce the number of data frames received per failure, reduce the processing capacity of the RNC, and reduce overhead information such as IP header when transferring data frames. Reduce the increase in traffic between the Node B and the RNC. it can. Further, according to the second embodiment, with regard to data transfer to the RNC also in Node B power, multiple times of HARQ cycle (TTI) are transferred collectively, so that the number of retransmissions by HARQ is large. The delay can be prevented from being accumulated for the number of retransmissions, and the delay time can be prevented from increasing significantly.
- TTI HARQ cycle
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| US11/587,432 US20070223495A1 (en) | 2004-04-28 | 2005-04-18 | Control Station Apparatus, Base Station Apparatus, Receiving Method, Transmitting Method and Communicating Method |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2004132976A JP3840480B2 (ja) | 2004-04-28 | 2004-04-28 | 制御局装置及び基地局装置 |
| JP2004-132976 | 2004-04-28 |
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| US (1) | US20070223495A1 (ja) |
| EP (1) | EP1742498A4 (ja) |
| JP (1) | JP3840480B2 (ja) |
| CN (1) | CN100548063C (ja) |
| WO (1) | WO2005107301A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7916751B2 (en) * | 2005-06-21 | 2011-03-29 | Interdigital Technology Corporation | Method and apparatus for efficient operation of an enhanced dedicated channel |
| JP2008301178A (ja) * | 2007-05-31 | 2008-12-11 | Fujitsu Ltd | パケットデータ通信方法、無線基地局、および制御局 |
| US8619775B2 (en) * | 2008-07-21 | 2013-12-31 | Ltn Global Communications, Inc. | Scalable flow transport and delivery network and associated methods and systems |
| GB2478687B (en) * | 2008-12-22 | 2014-05-21 | Ltn Global Communications Inc | A system and method for recovery of packets in overlay networks |
| US9106569B2 (en) | 2009-03-29 | 2015-08-11 | Ltn Global Communications, Inc. | System and method that routes flows via multicast flow transport for groups |
| US8599851B2 (en) | 2009-04-03 | 2013-12-03 | Ltn Global Communications, Inc. | System and method that routes flows via multicast flow transport for groups |
| KR101335971B1 (ko) * | 2009-04-21 | 2013-12-04 | 알까뗄 루슨트 | 무선 중계 방법 및 디바이스 |
| WO2011125002A1 (en) * | 2010-04-09 | 2011-10-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Dynamic adaptation of downlink rlc pdu size |
| US9185660B2 (en) * | 2011-04-21 | 2015-11-10 | Mediatek Inc. | Power adaptation apparatus and power adaptation method for controlling uplink/downlink power |
| US9179169B2 (en) | 2012-03-14 | 2015-11-03 | Imagine Communications Corp. | Adaptive media delivery |
| CN103636177B (zh) * | 2012-06-28 | 2015-02-25 | 华为技术有限公司 | 调整资源配置的方法、无线网络控制器和基站 |
| US20150055527A1 (en) * | 2013-08-26 | 2015-02-26 | Qualcomm Incorporated | Devices and methods for facilitating power savings by optimized data block decodes in wireless communications systems |
| CN104618057B (zh) * | 2014-12-31 | 2016-05-11 | 国网山东省电力公司青岛供电公司 | 一种分组传送网无损伤保护倒换方法及系统 |
| US10530396B2 (en) | 2017-11-20 | 2020-01-07 | International Business Machines Corporation | Dynamically adjustable cyclic redundancy code types |
| US10530523B2 (en) | 2017-11-20 | 2020-01-07 | International Business Machines Corporation | Dynamically adjustable cyclic redundancy code rates |
| US10419035B2 (en) | 2017-11-20 | 2019-09-17 | International Business Machines Corporation | Use of multiple cyclic redundancy codes for optimized fail isolation |
| US10541782B2 (en) | 2017-11-20 | 2020-01-21 | International Business Machines Corporation | Use of a cyclic redundancy code multiple-input shift register to provide early warning and fail detection |
| WO2020104037A1 (en) * | 2018-11-22 | 2020-05-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Acknowlegment for simultaneous transmission and reception |
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| JP2001028591A (ja) * | 1999-07-13 | 2001-01-30 | Fujitsu Ltd | Atmセル選択方式 |
| JP2003348661A (ja) * | 2002-05-29 | 2003-12-05 | Nec Corp | 無線アクセスネットワーク装置及びそれを用いた移動通信システム |
| JP2004120622A (ja) * | 2002-09-27 | 2004-04-15 | Matsushita Electric Ind Co Ltd | 移動体通信システム、これに用いる基地局装置及び移動局装置並びに移動体通信方法 |
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| JP3094957B2 (ja) * | 1997-06-30 | 2000-10-03 | 日本電気株式会社 | 移動通信システムの上り選択サイトダイバーシチにおける無線基地局受信データ伝送システム |
| US6185438B1 (en) * | 1998-10-01 | 2001-02-06 | Samsung Electronics Co., Ltd. | Processor using virtual array of buffer descriptors and method of operation |
| FI108601B (fi) * | 1999-01-05 | 2002-02-15 | Nokia Corp | QoS-kartoitustiedon välitys pakettiradioverkossa |
| US6606301B1 (en) * | 1999-03-01 | 2003-08-12 | Sun Microsystems, Inc. | Method and apparatus for early random discard of packets |
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| JP2003158543A (ja) * | 2001-11-22 | 2003-05-30 | Anritsu Corp | 中継装置及び中継方法 |
| JP3674605B2 (ja) * | 2002-05-30 | 2005-07-20 | 日本電気株式会社 | Wcdmautranシステム |
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| KR20040083617A (ko) * | 2003-03-24 | 2004-10-06 | 삼성전자주식회사 | 향상된 역방향 전용전송채널을 서비스하는 비동기 방식의부호분할다중접속 이동통신시스템에서 소프트 핸드오버영역에 위치하는 이동단말이 역방향 데이터를 재전송하는방법 및 시스템 |
-
2004
- 2004-04-28 JP JP2004132976A patent/JP3840480B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-18 CN CNB2005800137639A patent/CN100548063C/zh not_active Expired - Fee Related
- 2005-04-18 US US11/587,432 patent/US20070223495A1/en not_active Abandoned
- 2005-04-18 EP EP05730616A patent/EP1742498A4/en not_active Withdrawn
- 2005-04-18 WO PCT/JP2005/007396 patent/WO2005107301A1/ja not_active Ceased
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| JP2001028591A (ja) * | 1999-07-13 | 2001-01-30 | Fujitsu Ltd | Atmセル選択方式 |
| JP2003348661A (ja) * | 2002-05-29 | 2003-12-05 | Nec Corp | 無線アクセスネットワーク装置及びそれを用いた移動通信システム |
| JP2004120622A (ja) * | 2002-09-27 | 2004-04-15 | Matsushita Electric Ind Co Ltd | 移動体通信システム、これに用いる基地局装置及び移動局装置並びに移動体通信方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1742498A4 (en) | 2012-01-18 |
| CN100548063C (zh) | 2009-10-07 |
| JP3840480B2 (ja) | 2006-11-01 |
| CN1951135A (zh) | 2007-04-18 |
| JP2005318211A (ja) | 2005-11-10 |
| EP1742498A1 (en) | 2007-01-10 |
| US20070223495A1 (en) | 2007-09-27 |
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