WO2016161723A1 - Procédé et système de transmission d'un flux de données de service - Google Patents

Procédé et système de transmission d'un flux de données de service Download PDF

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Publication number
WO2016161723A1
WO2016161723A1 PCT/CN2015/085863 CN2015085863W WO2016161723A1 WO 2016161723 A1 WO2016161723 A1 WO 2016161723A1 CN 2015085863 W CN2015085863 W CN 2015085863W WO 2016161723 A1 WO2016161723 A1 WO 2016161723A1
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Prior art keywords
data stream
base station
service data
pdcp
access point
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PCT/CN2015/085863
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English (en)
Chinese (zh)
Inventor
雷艺学
李明菊
张云飞
何成名
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2016161723A1 publication Critical patent/WO2016161723A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for transmitting a service data stream and a system for transmitting a service data stream.
  • LTE Long Term Evolution
  • LTE The -A Long Term Evolution-Advanced
  • WLAN Wireless Local Area Network
  • FIG. 1 it is a schematic diagram of an architecture of existing LTE and WLAN integration.
  • the user traffic transmitted by the WLAN secondary cell is not part of the radio access bearer between the terminal and the access network element eNB, resulting in the following defects and problems:
  • the backhaul (channel) of the cellular network with high quality of service cannot be utilized to support service data transmission.
  • the invention is based on the above problems, and proposes a new technical solution, which can realize wireless local area network aggregation in the access layer, effectively utilizes the wireless local area network access point for traffic sharing, and thus more flexibly adapts to the wireless link.
  • an aspect of the present invention provides a method for transmitting a service data stream, including: when a base station and a terminal transmit a service data stream, the base station determines whether a wireless local area network access point and the terminal are required to be Performing transmission of the service data stream; when the determination result is yes, the base station performs segmentation on the service data stream to transmit the service data stream.
  • the base station determines that it is necessary to simultaneously transmit the service data stream through the WLAN access point and directly (ie, through the cellular network, including LTE)
  • the data service flow is segmented to implement Wireless local area network (WLAN) aggregation at the access layer (AS layer), effectively utilizing WLAN access points for traffic sharing, thereby more flexibly adapting to wireless links
  • WLAN Wireless local area network
  • AS layer access layer
  • the base station performs segmentation on the service data flow to transmit the service data flow, and specifically includes: allocating a bearer to the base station and the terminal;
  • the service data stream is followed by a PDCP layer (Packet Data Convergence Protocol, one of the protocol layers of the 3GPP radio access side) or a PDCP layer and an RLC layer (Radio Link Control, Radio Link Control Protocol).
  • the transmitting side of the protocol layer of the 3GPP radio access side is processed to encapsulate the sliced service data stream into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet respectively; and the PDCP layer protocol packet is Or the PDCP/RLC layer protocol packet is transmitted through the bearer with a uniform sequence number.
  • the bandwidth generally refers to the bandwidth occupied by the signal
  • the large bandwidth is a relative amount, relative to the available rate of each wireless interface, such as A terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding the bandwidth expected by the user on the LTE radio interface.
  • the base station When the service data stream is occupied, the base station first allocates a bearer (transport carrier) for the base station and the terminal, and when the uplink and downlink transmission of the service data stream, the base station can perform wireless according to the wireless local area network access point and the cellular network.
  • the transmission quality of the link performs bit (bit) granularity segmentation on the service data stream, and the sliced service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and encapsulated into a PDCP layer protocol packet or
  • the PDCP/RLC layer protocol packet is transmitted through the assigned bearer with a uniform sequence number, so that the WLAN can be fully utilized for flexible and efficient traffic. Converged transmission enables WLAN traffic to achieve high quality of service by means of the backhaul of the cellular network. Moreover, by using a uniform sequence number for transmission, it is possible to effectively avoid the disorder of protocol packet transmission.
  • the general bandwidth (the general bandwidth is also a relative amount, which means that the service data stream can be carried only by the LTE radio interface even if the service data stream is not segmented)
  • the service data stream can be transmitted based on each service data.
  • the stream or bearer is split.
  • the base station adjusts a data stream transmission ratio of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface.
  • the service data flow transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the base station can be based on the wireless local area network wireless interface and the cellular network wireless
  • the transmission quality of the interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point reports an average delay of the WLAN air interface to the base station, and the WLAN The access point and/or the base station inserts a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval to dynamically monitor the wireless local area network access point and the base station The transmission delay.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point can report the average delay of the WLAN air interface to the base station.
  • the WLAN access point and/or the base station can dynamically insert the timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the WLAN access point can be further effectively utilized for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the base station sends the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point
  • the WLAN access point sends the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to the terminal for processing on the PDCP layer or the PDCP layer and the RLC layer to complete the transmission of the service data stream.
  • the base station processes the segmented downlink service data stream through the PDCP layer or the PDCP layer and the RLC layer, and then encapsulates it into a PDCP layer protocol packet or PDCP/RLC.
  • Layer protocol packet and send it as a payload of the wireless local area network (WLAN RAT) to the wireless local area network access point (AP), and then through the wireless local area network access point (AP) and terminal (
  • WLAN RAT wireless local area network
  • AP wireless local area network access point
  • the UE) interface is transmitted to the terminal to perform PDCP layer or PDCP layer and PDC layer on the receiving side of the RLC layer for the PDCP layer protocol packet or the PDCP/RLC layer protocol packet. Processed and then handed over to the top of the terminal.
  • the method before the base station severifies the service data stream, the method further includes: establishing a logical interface between the WLAN access point and the base station, for using a data plane Transmission of LTE protocol data between the WLAN access point and the base station.
  • a logical interface is established between the WLAN access point and the base station before the base station severs the service data stream, and the LTE protocol data for the data plane is used in the WLAN access point and the base station.
  • the logical interface can be wired or wireless, so that there is no direct logical interface between the WLAN access point and the core network, when the base station and the WLAN access point are co-located
  • the logical interface becomes the internal interface of the network element.
  • the control signaling can be hidden by the base station, and the scalability is also improved.
  • Another aspect of the present invention provides a method for transmitting a service data stream, including: when a terminal and a base station transmit a service data stream, the terminal determines whether it is required to perform the foregoing by using a WLAN access point with the base station The transmission of the service data stream; when the determination result is yes, the terminal segments the service data stream to transmit the service data stream.
  • the terminal determines that the service data stream needs to be transmitted through the WLAN access point and directly (ie, through the cellular network, including LTE) and the base station
  • the data service flow is segmented to implement Wireless local area network (WLAN) aggregation at the access layer (AS layer), effectively utilizing WLAN access points for traffic sharing, thereby more flexibly adapting to the quality changes of the wireless link, and enabling wireless local area networks (WLAN) Traffic is achieved by the backhaul of the cellular network to achieve high quality of service.
  • WLAN Wireless local area network
  • AS layer access layer
  • the terminal is configured to perform the segmentation of the service data flow to transmit the service data flow, and specifically includes: allocating a bearer to the base station and the terminal;
  • the service data stream is followed by a PDCP layer (Packet Data Convergence Protocol, one of the protocol layers of the 3GPP radio access side) or a PDCP layer and an RLC layer (Radio Link Control, Radio Link Control Protocol).
  • the transmitting side of the protocol layer of the 3GPP radio access side is processed to encapsulate the sliced service data stream into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet respectively; and the PDCP layer protocol packet is Or the PDCP/RLC layer protocol packet is transmitted through the bearer with a uniform sequence number.
  • band Width generally refers to the bandwidth occupied by the signal.
  • the large bandwidth is a relative amount.
  • a terminal can have 1 Mb/s bandwidth on the LTE radio interface, then a 4 Mb/s bandwidth.
  • the terminal When the service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding the bandwidth occupied by the user on the LTE radio interface, the terminal first allocates a bearer to the base station and the terminal (transport carrier) ), in the uplink and downlink transmission of the service data stream, the terminal may perform bit (bit) granularity segmentation on the service data stream according to the transmission quality of the wireless local area network access point and the wireless link of the cellular network, and segmentation
  • the subsequent service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and is encapsulated into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet, and transmitted through the allocated bearer with a uniform sequence number.
  • the service data stream can be transmitted based on each service data.
  • the flow or bearer is segmented, and on the terminal side, the traffic shaping of the per-bearer (by bearer) can be implemented by using a Traffic Flow Template (TFT), and the granularity of the base station can be divided into service data streams. It is consistent with the terminal side and may not be consistent.
  • TFT Traffic Flow Template
  • the terminal adjusts a data stream transmission ratio of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface.
  • the service data stream transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the terminal can be wireless according to the wireless local area network wireless network and the cellular network.
  • the transmission quality of the interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point reports an average delay of the WLAN air interface to the base station, and the WLAN The access point and/or the base station inserts a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval to dynamically monitor the WLAN connection The transmission delay between the ingress point and the base station.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point can report the average delay of the WLAN air interface to the base station.
  • the WLAN access point and/or the base station can dynamically insert the timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the WLAN access point can be further effectively utilized for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the terminal sends the PDCP layer protocol packet or the PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point, and
  • the WLAN access point sends the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to the base station for processing on the PDCP layer or the PDCP layer and the RLC layer to complete the transmission of the service data stream.
  • the uplink service data stream is segmented in the terminal, and a part of the uplink service data stream is processed by the PDCP layer and/or the PDCP layer and the RLC layer, and then encapsulated into a PDCP layer protocol packet or PDCP.
  • /RLC layer protocol packet and send it as a payload of the wireless local area network (WLAN RAT) to the wireless local area network access point (AP), and then through the wireless local area network access point (AP)
  • the base station (eNB) interface is transmitted to the base station (eNB) to perform PDCP layer or PDCP layer and RLC layer receiving side processing on the PDCP layer protocol packet or the PDCP/RLC layer protocol packet.
  • the method further includes: establishing a logical interface between the WLAN access point and the base station, for using a data plane Transmission of LTE protocol data between the WLAN access point and the base station.
  • a logical interface is established between the WLAN access point and the base station, and the LTE protocol data for the data plane is used in the WLAN access point and the base station.
  • the logical interface can be wired or wireless, so that there is no direct logical interface between the WLAN access point and the core network, then when the base station and the wireless When the local area network access point is co-located, the logical interface becomes the internal interface of the network element.
  • the control signaling can be hidden by the base station, and the scalability is also improved.
  • a further aspect of the present invention provides a system for transmitting a service data stream, comprising: a base station and a WLAN access point, wherein when the base station and the terminal transmit a service data stream, the base station determines whether it needs to pass The WLAN access point performs the transmission of the service data stream with the terminal; when the determination result is YES, the base station is configured to segment the service data stream to transmit the service data stream.
  • the base station determines that it is necessary to simultaneously transmit the service data stream through the WLAN access point and directly (ie, through the cellular network, including LTE) and the terminal, the data service flow is segmented to Realize wireless local area network (WLAN) aggregation at the access layer (AS layer), effectively utilize WLAN access points for traffic sharing, thereby more flexibly adapting to the quality changes of wireless links, and enabling wireless local area networks ( WLAN) traffic achieves high quality of service by the backhaul of the cellular network.
  • WLAN wireless local area network
  • the base station is specifically configured to: allocate a bearer to the base station and the terminal; perform the processing of the split service data stream on a PDCP layer or a PDCP layer and an RLC layer.
  • the packet of the service data stream is encapsulated into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet, respectively, and the PDCP layer protocol packet or the PDCP/RLC layer protocol packet is passed through the bearer with a uniform sequence number. Transfer.
  • the bandwidth generally refers to the bandwidth occupied by the signal
  • the large bandwidth is a relative amount, relative to the available rate of each wireless interface, such as A terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding the bandwidth expected by the user on the LTE radio interface.
  • the base station When the service data stream is occupied, the base station first allocates a bearer (transport carrier) for the base station and the terminal, and when the uplink and downlink transmission of the service data stream, the base station can perform wireless according to the wireless local area network access point and the cellular network.
  • the transmission quality of the link performs bit (bit) granularity segmentation on the service data stream, and the sliced service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and encapsulated into a PDCP layer protocol packet or
  • the PDCP/RLC layer protocol packet is transmitted through the assigned bearer with a uniform sequence number, so that the WLAN can be fully utilized for flexible and efficient traffic. Converged transmission, allowing WLAN traffic to be borrowed
  • the channel of the cellular network (backhaul) to achieve high quality of service, and by using a uniform serial number for transmission, can effectively avoid the out of order of protocol packet transmission.
  • the general bandwidth (the general bandwidth is also a relative amount, which means that the service data stream can be carried only by the LTE radio interface even if the service data stream is not segmented)
  • the service data stream can be transmitted based on each service data.
  • the stream or bearer is split.
  • the base station is further configured to: adjust data transmission of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface. proportion.
  • the service data flow transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the base station can be based on the wireless local area network wireless interface and the cellular network wireless
  • the transmission quality of the interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point is configured to report, to the base station, an average delay of the WLAN air interface, and the wireless a local area network access point and/or the base station is configured to insert a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval, dynamically monitoring the WLAN access point and the The transmission delay between base stations.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point can report the average delay of the WLAN air interface to the base station.
  • the WLAN access point and/or the base station can dynamically insert the timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the WLAN access point can be further effectively utilized for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the base station is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point
  • the WLAN access point is configured to use the PDCP layer protocol
  • the packet or PDCP/RLC layer protocol packet is sent to the terminal for PDCP layer or receiving side processing of the PDCP layer and the RLC layer to complete the transmission of the service data stream.
  • the base station processes the segmented downlink service data stream through the PDCP layer or the PDCP layer and the RLC layer, and then encapsulates it into a PDCP layer protocol packet or PDCP/RLC.
  • Layer protocol packet and send it as a payload of the wireless local area network (WLAN RAT) to the wireless local area network access point (AP), and then through the wireless local area network access point (AP) and terminal (
  • WLAN RAT wireless local area network
  • AP wireless local area network access point
  • the interface of the UE is transmitted to the terminal to perform processing on the PDCP layer or the PDCP layer and the receiving side of the RLC layer for the PDCP layer protocol packet or the PDCP/RLC layer protocol packet, and then handed over to the upper layer of the terminal.
  • the WLAN access point is further configured to: before the base station severes the service data stream, between the WLAN access point and the base station Establishing a logical interface for transmission of LTE protocol data of the data plane between the WLAN access point and the base station.
  • a logical interface is established between the WLAN access point and the base station before the base station severs the service data stream, and the LTE protocol data for the data plane is used in the WLAN access point.
  • the transmission between the base station and the base station may be wired or wireless.
  • the logical interface becomes the internal interface of the network element.
  • the control signaling can be hidden by the base station, and the scalability is also improved.
  • a further aspect of the present invention provides a system for transmitting a service data stream, comprising: a terminal and a wireless local area network access point, wherein when the terminal and the base station transmit a service data stream, the terminal determines whether it needs to pass The WLAN access point performs the transmission of the service data stream with the base station; when the determination result is YES, the terminal is configured to segment the service data stream to transmit the service data stream.
  • the terminal determines that the service data stream needs to be transmitted through the WLAN access point and directly (ie, through the cellular network, including LTE) and the base station
  • the data service flow is segmented to implement Wireless local area network (WLAN) aggregation at the access layer (AS layer), effectively utilizing WLAN access points for traffic sharing, thereby more flexibly adapting to the quality changes of the wireless link, and enabling wireless local area networks (WLAN) Traffic through the cellular network channel (backhaul) to achieve high quality of service.
  • WLAN Wireless local area network
  • AS layer access layer
  • the terminal is specifically configured to: allocate a bearer to the base station and the terminal; and perform processing on the transmit side of the PDCP layer or the PDCP layer and the RLC layer by using the split service data stream.
  • the packet of the service data stream is encapsulated into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet, respectively, and the PDCP layer protocol packet or the PDCP/RLC layer protocol packet is passed through the bearer with a uniform sequence number. Transfer.
  • the base station is transparent to the traffic content of the terminal, when a large bandwidth is performed (the bandwidth generally refers to the bandwidth occupied by the signal, the large bandwidth is a relative amount, relative to the available rate of each wireless interface, such as A terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding the bandwidth expected by the user on the LTE radio interface.
  • the terminal When the service data stream is occupied, the terminal first allocates a bearer (transport carrier) for the base station and the terminal, and then according to the wireless local area network access point and the wireless chain of the cellular network when the service data stream is uplinked and downlinked.
  • a bearer transport carrier
  • the transmission quality of the path is bit-bit granularly segmented into the service data stream, and the segmented service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and encapsulated into a PDCP layer protocol packet or PDCP.
  • /RLC layer protocol packet and transmitted through the assigned bearer with a uniform serial number, so that WLAN can be fully utilized for flexible and efficient traffic aggregation Transmission enables WLAN traffic to achieve high quality of service by means of the backhaul of the cellular network.
  • a uniform sequence number for transmission it is possible to effectively avoid the disorder of protocol packet transmission.
  • the service data stream can be transmitted based on each service data.
  • the flow or bearer is segmented, and on the terminal side, the traffic shaping of the per-bearer (by bearer) can be implemented by using a Traffic Flow Template (TFT), and the granularity of the base station can be divided into service data streams. It is consistent with the terminal side and may not be consistent.
  • TFT Traffic Flow Template
  • the terminal is further configured to: adjust data transmission of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface. proportion.
  • transmission is performed through a wireless local area network wireless interface and a cellular network wireless interface.
  • the transmitted service data flow needs to be dynamically balanced to avoid affecting the overall throughput improvement.
  • the terminal can adjust the data stream transmission ratio according to the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface, so as to further fully WLAN flexible. Efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point is configured to report, to the base station, an average delay of the WLAN air interface, and the wireless a local area network access point and/or the base station is configured to insert a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval, dynamically monitoring the WLAN access point and the The transmission delay between base stations.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point can report the average delay of the WLAN air interface to the base station.
  • the WLAN access point and/or the base station can dynamically insert the timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the WLAN access point can be further effectively utilized for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the terminal is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point
  • the WLAN access point is configured to send the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to the base station to perform processing on the PDCP layer or the PDCP layer and the RLC layer, to complete the service data.
  • the transmission of the stream is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point
  • the WLAN access point is configured to send the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to the base station to perform processing on the PDCP layer or the PDCP layer and the RLC layer, to complete the service data.
  • the transmission of the stream is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local
  • the uplink service data stream is segmented in the terminal, and a part of the uplink service data stream is processed by the PDCP layer and/or the PDCP layer and the RLC layer, and then encapsulated into a PDCP layer protocol packet or PDCP.
  • /RLC layer protocol packet and send it as a payload of the wireless local area network (WLAN RAT) to the wireless local area network access point (AP), and then through the wireless local area network access point (AP)
  • the base station (eNB) interface is transmitted to the base station (eNB) to perform PDCP layer or PDCP layer and RLC layer receiving side processing on the PDCP layer protocol packet or the PDCP/RLC layer protocol packet.
  • the WLAN access point is further configured to: before the terminal severifies the service data stream, between the WLAN access point and the base station Establishing a logical interface for transmission of LTE protocol data of the data plane between the WLAN access point and the base station.
  • a logical interface between the WLAN access point and the base station is established before the terminal severifies the service data stream, and the LTE protocol data for the data plane is used in the WLAN access point and For transmission between base stations, the logical interface may be wired or wireless.
  • the logical interface becomes the internal interface of the network element.
  • wireless local area network aggregation in the access layer can be realized, and the wireless local area network access point can be effectively used for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link, and enabling the wireless local area network.
  • Traffic is achieved by the channel of the cellular network to achieve high quality of service.
  • FIG. 1 is a schematic structural diagram of LTE and WLAN integration in the related art
  • FIG. 2 is a flow chart showing a method of transmitting a service data stream according to an embodiment of the present invention
  • FIG. 3 is a flow chart showing a method of transmitting a service data stream according to another embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing a protocol layer of an AS layer implementing WLAN RAT integration according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of LTE and WLAN integration according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram showing the architecture of LTE and WLAN integration according to another embodiment of the present invention.
  • Figure 7 shows a block diagram of a system for transmitting a traffic data stream in accordance with one embodiment of the present invention
  • FIG. 8 shows a block diagram of a system for transmitting a traffic data stream in accordance with another embodiment of the present invention.
  • FIG. 2 shows a flow diagram of a method of transmitting a traffic data stream in accordance with one embodiment of the present invention.
  • a method for transmitting a service data stream includes: Step 202: When a base station and a terminal transmit a service data stream, the base station determines whether a wireless local area network access point is required. And transmitting, by the terminal, the service data flow; in step 204, when the determination result is yes, the base station performs segmentation on the service data flow to transmit the service data flow.
  • the base station determines that it is necessary to simultaneously transmit the service data stream through the WLAN access point and directly (ie, through the cellular network, including LTE)
  • the data service flow is segmented to implement Wireless local area network (WLAN) aggregation at the access layer (AS layer), effectively utilizing WLAN access points for traffic sharing, thereby more flexibly adapting to the quality changes of the wireless link, and enabling wireless local area networks (WLAN) Traffic is achieved by the backhaul of the cellular network to achieve high quality of service.
  • WLAN Wireless local area network
  • AS layer access layer
  • the base station performs segmentation on the service data flow to transmit the service data flow, and specifically includes: allocating a bearer to the base station and the terminal;
  • the service data stream is followed by a PDCP layer (Packet Data Convergence Protocol, one of the protocol layers of the 3GPP radio access side) or a PDCP layer and an RLC layer (Radio Link Control, Radio Link Control Protocol).
  • the transmitting side of the protocol layer of the 3GPP radio access side is processed to encapsulate the sliced service data stream into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet respectively; and the PDCP layer protocol packet is Or PDCP/RLC layer protocol package to unify The serial number is transmitted through the bearer.
  • the bandwidth generally refers to the bandwidth occupied by the signal
  • the large bandwidth is a relative amount, relative to the available rate of each wireless interface, such as A terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding the bandwidth expected by the user on the LTE radio interface.
  • the base station When the service data stream is occupied, the base station first allocates a bearer (transport bearer) for the base station and the terminal, and when the uplink and downlink transmission of the service data stream, the base station can according to the wireless local area network access point and the cellular network
  • the transmission quality of the wireless link is bit-bit granularly segmented into the service data stream, and the segmented service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and encapsulated into a PDCP layer protocol.
  • Packet or PDCP/RLC layer protocol packet and transmitted through the assigned bearer with a uniform sequence number, so that the WLAN can be fully utilized for flexibility and high efficiency. Traffic aggregation transmission enables WLAN traffic to achieve high quality of service through the backhaul of the cellular network. Moreover, by using a uniform sequence number for transmission, it is possible to effectively avoid the disorder of protocol packet transmission.
  • the general bandwidth (the general bandwidth is also a relative amount, which means that the service data stream can be carried only by the LTE radio interface even if the service data stream is not segmented)
  • the service data stream can be transmitted based on each service data.
  • the stream or bearer is split.
  • the base station adjusts a data stream transmission ratio of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface.
  • the service data flow transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the base station can be based on the wireless local area network wireless interface and the cellular network wireless
  • the transmission quality of the interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point reports an average delay of the WLAN air interface to the base station, and the WLAN The access point and/or the base station inserts a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval to dynamically monitor the wireless local area network access point and the base station The transmission delay.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point can report the average delay of the WLAN air interface to the base station.
  • the WLAN access point and/or the base station can dynamically insert the timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the WLAN access point can be further effectively utilized for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the base station sends the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point
  • the WLAN access point sends the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to the terminal for processing on the PDCP layer or the PDCP layer and the RLC layer to complete the transmission of the service data stream.
  • the base station processes the segmented downlink service data stream through the PDCP layer or the PDCP layer and the RLC layer, and then encapsulates it into a PDCP layer protocol packet or PDCP/RLC.
  • Layer protocol packet and send it as a payload of the wireless local area network (WLAN RAT) to the wireless local area network access point (AP), and then through the wireless local area network access point (AP) and terminal (
  • WLAN RAT wireless local area network
  • AP wireless local area network access point
  • the interface of the UE is transmitted to the terminal to perform processing on the PDCP layer or the PDCP layer and the receiving side of the RLC layer for the PDCP layer protocol packet or the PDCP/RLC layer protocol packet, and then handed over to the upper layer of the terminal.
  • a schematic diagram of a protocol layer for implementing WLAN RAT integration according to an AS layer according to an embodiment of the present invention includes a terminal and a network side, the protocol layer will be a non-cellular network protocol across a RAT (wireless interface), in layer 2 Realizing interworking with the cellular network protocol stack, and reflecting the inter-layer primitives that the solution of the present invention needs to implement, that is, the SAP between the RLC layer and the WLAN LLC layer (Logical Link Control) (Service Access point, definition of service access point).
  • the SAP between the RLC layer and the WLAN LLC layer (Logical Link Control) (Service Access point, definition of service access point).
  • the method further includes: establishing a logical interface between the WLAN access point and the base station, for using data Transmission of LTE protocol data between the WLAN access point and the base station.
  • a logical interface is established between the WLAN access point and the base station before the base station severs the service data stream, and the LTE protocol data for the data plane is used in the WLAN access point and the base station.
  • the logical interface can be wired or wireless, so that there is no direct logical interface between the WLAN access point and the core network, when the base station and the WLAN access point are co-located
  • the logical interface becomes the internal interface of the network element.
  • the control signaling can be hidden by the base station, and the scalability is also improved.
  • An architecture scheme of LTE and WLAN integration according to an embodiment of the present invention is shown in FIG. 5.
  • the technical solution of the present invention is also applicable to another architecture scheme of LTE and WLAN integration as shown in FIG. 6.
  • FIG. 3 shows a flow diagram of a method of transmitting a traffic data stream in accordance with another embodiment of the present invention.
  • a method for transmitting a service data stream includes: Step 302: When a terminal and a base station transmit a service data stream, the terminal determines whether it needs to access through a wireless local area network. And transmitting, by the base station, the service data stream; in step 304, when the determination result is yes, the terminal performs segmentation on the service data stream to transmit the service data stream.
  • the terminal determines that the service data stream needs to be transmitted through the WLAN access point and directly (ie, through the cellular network, including LTE) and the base station
  • the data service flow is segmented to implement Wireless local area network (WLAN) aggregation at the access layer (AS layer), effectively utilizing WLAN access points for traffic sharing, thereby more flexibly adapting to the quality changes of the wireless link, and enabling wireless local area networks (WLAN) Traffic is achieved by the backhaul of the cellular network to achieve high quality of service.
  • WLAN Wireless local area network
  • AS layer access layer
  • the terminal is configured to perform the segmentation of the service data flow to transmit the service data flow, and specifically includes: allocating a bearer to the base station and the terminal;
  • the service data stream is followed by a PDCP layer (Packet Data Convergence Protocol, one of the protocol layers of the 3GPP radio access side) or a PDCP layer and an RLC layer (Radio Link Control, Radio Link Control Protocol).
  • the transmitting side of the protocol layer of the 3GPP radio access side is processed to encapsulate the sliced service data stream into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet respectively; and the PDCP layer protocol packet is Or the PDCP/RLC layer protocol packet is transmitted through the bearer with a uniform sequence number.
  • the base station is transparent to the traffic content of the terminal, when a large bandwidth is performed (the bandwidth generally refers to the bandwidth occupied by the signal, the large bandwidth is a relative amount, relative to the available rate of each wireless interface, such as A terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding the bandwidth expected by the user on the LTE radio interface.
  • the terminal When the service data stream is occupied, the terminal first allocates a bearer (transport carrier) for the base station and the terminal, and then according to the wireless local area network access point and the wireless chain of the cellular network when the service data stream is uplinked and downlinked.
  • a bearer transport carrier
  • the transmission quality of the path is bit-bit granularly segmented into the service data stream, and the segmented service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and encapsulated into a PDCP layer protocol packet or PDCP.
  • /RLC layer protocol packet and transmitted through the assigned bearer with a uniform serial number, so that WLAN can be fully utilized for flexible and efficient traffic aggregation Transmission enables WLAN traffic to achieve high quality of service by means of the backhaul of the cellular network.
  • a uniform sequence number for transmission it is possible to effectively avoid the disorder of protocol packet transmission.
  • the service data stream can be transmitted based on each service data.
  • the flow or bearer is segmented, and on the terminal side, the traffic shaping of the per-bearer (by bearer) can be implemented by using a Traffic Flow Template (TFT), and the granularity of the base station can be divided into service data streams. It is consistent with the terminal side and may not be consistent.
  • TFT Traffic Flow Template
  • the terminal adjusts a data stream transmission ratio of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface.
  • the service data stream transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the terminal can be wireless according to the wireless local area network wireless network and the cellular network.
  • the transmission quality of the interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point reports an average delay of the WLAN air interface to the base station, and the WLAN The access point and/or the base station at the PDCP layer at preset time intervals A timestamp is inserted into the protocol packet or PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point can report the average delay of the WLAN air interface to the base station.
  • the WLAN access point and/or the base station can dynamically insert the timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to dynamically monitor the transmission delay between the WLAN access point and the base station.
  • the WLAN access point can be further effectively utilized for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the terminal sends the PDCP layer protocol packet or the PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point, and
  • the WLAN access point sends the PDCP layer protocol packet or the PDCP/RLC layer protocol packet to the base station for processing on the PDCP layer or the PDCP layer and the RLC layer to complete the transmission of the service data stream.
  • the uplink service data stream is segmented in the terminal, and a part of the uplink service data stream is processed by the PDCP layer and/or the PDCP layer and the RLC layer, and then encapsulated into a PDCP layer protocol packet or PDCP.
  • /RLC layer protocol packet and send it as a payload of the wireless local area network (WLAN RAT) to the wireless local area network access point (AP), and then through the wireless local area network access point (AP)
  • the base station (eNB) interface is transmitted to the base station (eNB) to perform PDCP layer or PDCP layer and RLC layer receiving side processing on the PDCP layer protocol packet or the PDCP/RLC layer protocol packet.
  • a schematic diagram of a protocol layer for implementing WLAN RAT integration according to an AS layer according to an embodiment of the present invention includes a terminal and a network side, the protocol layer will be a non-cellular network protocol across a RAT (wireless interface), in layer 2 Realizing interworking with the cellular network protocol stack, and reflecting the inter-layer primitives that the solution of the present invention needs to implement, that is, the SAP between the RLC layer and the WLAN LLC layer (Logical Link Control) (Service Access point, definition of service access point).
  • the SAP between the RLC layer and the WLAN LLC layer (Logical Link Control) (Service Access point, definition of service access point).
  • the method further includes: establishing a logical interface between the WLAN access point and the base station, for using a data plane Transmission of LTE protocol data between the WLAN access point and the base station.
  • the WLAN access point before the terminal divides the service data stream, the WLAN access point establishes a logical interface with the base station, and the LTE protocol data for the data plane is used in the WLAN access point.
  • the transmission between the base station and the base station may be wired or wireless.
  • the logical interface becomes the internal interface of the network element.
  • the control signaling can be hidden by the base station, and the scalability is also improved.
  • An architecture scheme of LTE and WLAN integration according to an embodiment of the present invention is shown in FIG. 5.
  • the technical solution of the present invention is also applicable to another architecture scheme of LTE and WLAN integration as shown in FIG. 6.
  • Figure 7 shows a block diagram of a system for transmitting traffic data streams in accordance with one embodiment of the present invention.
  • a system 700 for transmitting a service data stream includes: a base station 702 and a WLAN access point 704, wherein the base station 702 and the terminal transmit a service data stream
  • the base station 702 determines whether the transmission of the service data stream needs to be performed with the terminal through the WLAN access point 704. When the determination result is yes, the base station 702 is configured to cut the service data stream. Points to transmit the traffic data stream.
  • the base station 702 determines that it is necessary to simultaneously transmit the service data stream through the WLAN access point 704 and directly (ie, through the cellular network, including LTE), the data service flow is segmented.
  • the WLAN access point 606 is effectively utilized for traffic sharing, thereby more flexibly adapting to quality changes of the wireless link, and enabling wireless local area networks.
  • Network (WLAN) traffic achieves high quality of service through the backhaul of the cellular network.
  • the base station 702 is specifically configured to: allocate a bearer for the base station 702 and the terminal; and send the sliced service data stream to a PDCP layer or a PDCP layer and an RLC layer.
  • the side processing is performed to encapsulate the segmented service data stream into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet respectively; and the PDCP layer protocol packet or the PDCP/RLC layer protocol packet is passed through a unified serial number.
  • the bearer is transmitted.
  • the base station 702 is transparent to the traffic content of the terminal, when a large bandwidth is performed (the bandwidth generally refers to the bandwidth occupied by the signal, the large bandwidth is a relative amount, relative to the available rate of each wireless interface,
  • a terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding that expected by users on the LTE radio interface.
  • the base station 702 When the bandwidth of the service data stream is transmitted, the base station 702 first allocates a bearer (transport carrier) for the base station 702 and the terminal, and when the uplink and downlink transmission of the service data stream, the base station 702 can access the point 704 according to the WLAN.
  • a bearer transport carrier
  • the transmission quality of the wireless link of the cellular network is bit-bit granularly segmented into the service data stream, and the sliced service data stream is processed by the PDCP layer or the PDCP layer and the RLC layer, and encapsulated as The PDCP layer protocol packet or the PDCP/RLC layer protocol packet is transmitted through the allocated bearer with a uniform sequence number, so that the WLAN can be fully utilized for flexibility and high Efficient traffic aggregation transmission enables WLAN traffic to achieve high quality of service through the backhaul of the cellular network. Moreover, by using a uniform sequence number for transmission, it is possible to effectively avoid the disorder of protocol packet transmission.
  • the general bandwidth (the general bandwidth is also a relative amount, which means that the service data stream can be carried only by the LTE radio interface even if the service data stream is not segmented)
  • the service data stream can be transmitted based on each service data.
  • the stream or bearer is split.
  • the base station 702 is further configured to: adjust a data flow of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of a cellular network wireless interface. Transmission ratio.
  • the service data stream transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the base station 702 can be based on the wireless local area network wireless interface and the cellular network.
  • the transmission quality of the wireless interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point 704 is configured to report the average delay of the WLAN air interface to the base station 702, and The WLAN access point 704 and/or the base station 702 are configured to insert a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval to dynamically monitor the WLAN access
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point to the base station for forwarding.
  • the WLAN access point 704 can report the average of the WLAN air interface to the base station 702.
  • the WLAN access point 704 and/or the base station 702 can dynamically monitor the WLAN access point 704 and the base station by inserting a timestamp at a preset time interval in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet.
  • the transmission delay between 702, in this way, can further effectively utilize the WLAN access point 704 for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link.
  • the base station 702 is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point.
  • the WLAN access point 704 is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet to the terminal for PDCP layer or PDCP layer and RLC layer receiving side processing, to complete The transmission of the business data stream.
  • the base station 702 processes the segmented downlink service data stream through the PDCP layer or the PDCP layer and the RLC layer, and then encapsulates it into a PDCP layer protocol packet or PDCP/
  • the RLC layer protocol packet is sent to the WLAN access point 704 (AP) as a payload of the WLAN radio interface (WLAN RAT) and then through the WLAN access point 704 (AP)
  • the interface with the terminal (UE) is transmitted to the terminal to perform processing on the PDCP layer or the PDCP layer and the receiving side of the RLC layer for the PDCP layer protocol packet or the PDCP/RLC layer protocol packet, and then handed over to the upper layer of the terminal.
  • the WLAN access point 704 is further configured to: before the base station 702 segments the service data stream, the WLAN access point 704 and the A logical interface is established between the base stations 702 for transmission of LTE protocol data of the data plane between the WLAN access point 704 and the base station 702.
  • a logical interface is established between the WLAN access point 704 and the base station 702 before the base station 702 segments the service data stream, so that the LTE protocol data for the data plane is accessed in the WLAN.
  • the transmission between the point 704 and the base station 702, the logical interface may be wired or wireless, such that there is no direct connection between the WLAN access point 704 and the core network.
  • the logical interface when the base station 702 and the WLAN access point 704 are co-located, the logical interface becomes an internal interface of the network element, and during the switching process of the service data flow, the control signaling can be hidden by the base station. It also increases scalability.
  • FIG. 8 shows a block diagram of a system for transmitting a traffic data stream in accordance with another embodiment of the present invention.
  • a system 800 for transmitting a service data stream includes: a terminal 802 and a wireless local area network access point 804, wherein the terminal 802 transmits a service data stream with a base station.
  • the terminal 802 determines whether the transmission of the service data stream needs to be performed by the WLAN access point 804 and the base station; when the determination result is yes, the terminal 802 is configured to perform the service data flow. Segmentation to transmit the traffic data stream.
  • the terminal 802 determines that it is necessary to simultaneously transmit the service data stream through the WLAN access point 804 and directly (ie, through the cellular network, including LTE), the data service flow is segmented.
  • WLAN wireless local area network
  • AS layer access layer
  • WLAN access points for traffic sharing, thereby more flexibly adapting to quality changes of wireless links, and enabling wireless local area networks (WLAN) traffic achieves high quality of service by the backhaul of the cellular network.
  • the terminal 802 is specifically configured to: allocate a bearer for the base station and the terminal 802; and perform the sending of the split service data stream to a PDCP layer or a PDCP layer and an RLC layer.
  • the side processing is performed to encapsulate the segmented service data stream into a PDCP layer protocol packet or a PDCP/RLC layer protocol packet respectively; and the PDCP layer protocol packet or the PDCP/RLC layer protocol packet is passed through a unified serial number.
  • the bearer is transmitted.
  • the base station is transparent to the traffic content of the terminal 802
  • the bandwidth generally refers to the bandwidth occupied by the signal
  • the large bandwidth is a relative amount, relative to the available rate of each wireless interface
  • a terminal's LTE radio interface can have 1 Mb/s bandwidth, so a 4 Mb/s bandwidth service traffic can be called a large bandwidth, that is, a large bandwidth can be described as a data rate exceeding that expected by users on the LTE radio interface.
  • the terminal 802 first allocates a bearer (transport bearer) for the base station and the terminal 802, and the terminal 802 can access according to the WLAN during uplink and downlink transmission of the service data stream.
  • a bearer transport bearer
  • Point 804 and the transmission quality of the radio link of the cellular network perform bit (bit) granularity segmentation on the service data stream, and process the segmented service data stream to the transmitting side of the PDCP layer or the PDCP layer and the RLC layer, and Seal Installed as a PDCP layer protocol packet or a PDCP/RLC layer protocol packet, and transmitted through a distributed bearer with a uniform sequence number.
  • bit bit
  • the WLAN can be fully utilized for flexible and efficient traffic aggregation transmission, so that WLAN traffic is transmitted through the cellular network.
  • the channel (backhaul) to achieve high quality of service, and by using a uniform serial number for transmission, can effectively avoid the out of order of protocol packet transmission.
  • the service data stream can be transmitted based on each service data.
  • the flow or bearer is sharded, and on the terminal 802 side, the traffic shaping of the per-bearer (by bearer) can be implemented by using a Traffic Flow Template (TFT), and the base station can split the achievable granularity of the service data flow. It can be consistent with the terminal side or it can be inconsistent.
  • TFT Traffic Flow Template
  • the terminal 802 is further configured to: adjust a data flow of the wireless local area network wireless interface and the cellular network wireless interface according to a wireless local area network wireless interface and a transmission quality of the cellular network wireless interface. Transmission ratio.
  • the service data stream transmitted through the wireless local area network wireless interface and the cellular network wireless interface needs to be dynamically balanced to avoid affecting the overall throughput improvement, and the terminal 802 can be based on the wireless local area network wireless interface and the cellular network.
  • the transmission quality of the wireless interface adjusts its data stream transmission ratio to further fully WLAN for flexible and efficient traffic aggregation transmission.
  • the transmission quality includes: a packet loss rate and a transmission delay; and the WLAN access point 804 is configured to report, to the base station, an average delay of the WLAN air interface, and the The WLAN access point 804 and/or the base station is configured to insert a timestamp in the PDCP layer protocol packet or the PDCP/RLC layer protocol packet at a preset time interval to dynamically monitor the WLAN access point 804.
  • the transmission delay between the base station and the base station.
  • the transmission quality of the wireless local area network wireless interface and the cellular network wireless interface includes, but is not limited to, a packet loss rate and a transmission delay, a packet loss rate, and a PDCP layer protocol packet or a PDCP/RLC layer protocol packet (packet) length.
  • the packet transmission frequency is related, and the transmission delay needs to consider the WLAN air interface delay and the delay of the data packet from the WLAN access point 804 to the base station for forwarding.
  • the WLAN access point 804 can report the average of the WLAN air interface to the base station.
  • the WLAN access point 804 and/or the base station may be in the PDCP layer protocol packet or the PDCP/RLC layer protocol A time stamp is inserted in the packet at a preset time interval to dynamically monitor the transmission delay between the WLAN access point 804 and the base station.
  • the WLAN access point 804 can be further effectively utilized for traffic sharing, thereby providing more flexibility. Adapt to the quality changes of the wireless link.
  • the terminal 802 is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet as a payload of the wireless local area network wireless interface to the wireless local area network access point.
  • the WLAN access point 804 is configured to send the PDCP layer protocol packet or a PDCP/RLC layer protocol packet to the base station to perform PDCP layer or PDCP layer and RLC layer receiving side processing, to complete The transmission of the business data stream.
  • the uplink service data stream is segmented at the terminal 802, and a part of the uplink service data stream is processed by the PDCP layer and/or the PDCP layer and the RLC layer, and then encapsulated into a PDCP layer protocol packet or
  • the PDCP/RLC layer protocol packet is sent to the WLAN access point 804 (AP) as a payload of the WLAN radio interface (WLAN RAT) and then through the WLAN access point 804 (AP) and the base station (eNB) interface are transmitted to the base station (eNB) to perform PDCP layer or PDCP layer and RLC layer receiving side processing on the PDCP layer protocol packet or the PDCP/RLC layer protocol packet.
  • the WLAN access point 804 is further configured to: before the terminal 802 segments the service data stream, establish the WLAN access point 804 and the location A logical interface between the base stations is used for transmission of LTE protocol data for the data plane between the WLAN access point 804 and the base station.
  • a WAN protocol is established between the WLAN access point 804 and the base station before the terminal 802 segments the service data stream, and the LTE protocol data for the data plane is used at the WLAN access point.
  • the transmission between the 804 and the base station, the logical interface may be wired or wireless, such that there is no direct logical interface between the WLAN access point 804 and the core network, and then the base station and the WLAN access When the 804 is co-located, the logical interface becomes an internal interface of the network element.
  • the control signaling can be hidden by the base station, and the scalability is also improved.
  • the technical solution of the present invention is described in detail above with reference to the accompanying drawings.
  • the WLAN in the access layer can be aggregated, and the WLAN access point can be effectively used for traffic sharing, thereby more flexibly adapting to the quality change of the wireless link. And a message that enables WLAN traffic to pass through the cellular network The road to achieve high quality of service.

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Abstract

L'invention concerne un procédé et un système de transmission d'un flux de données de service, le procédé comportant les étapes suivantes: lorsqu'une station de base transmet un flux de données de service avec un terminal, la station de base détermine s'il est nécessaire de transmettre le flux de données de service avec le terminal via un point d'accès de réseau local sans fil; et lorsque le résultat de la détermination est oui, la station de base segmente le flux de données de service de façon à transmettre le flux de données de service. Au moyen des solutions techniques de la présente invention, une agrégation de réseau local sans fil sur une couche d'accès peut être réalisée, un point d'accès de réseau local sans fil est employé efficacement pour effectuer une répartition de trafic de façon à être adapté de manière plus souple à des variations dans la qualité d'une liaison sans fil, et un flux de réseau local sans fil peut être en mesure d'atteindre une qualité de service élevée grâce à un canal d'un réseau cellulaire.
PCT/CN2015/085863 2015-04-10 2015-07-31 Procédé et système de transmission d'un flux de données de service WO2016161723A1 (fr)

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CN104735728A (zh) * 2015-04-10 2015-06-24 宇龙计算机通信科技(深圳)有限公司 传输业务数据流的方法和系统
EP3298820B1 (fr) * 2015-05-21 2019-11-13 Intel IP Corporation Indication d'un état pdcp pour déchargement multi-rat
CN105072612B (zh) * 2015-07-15 2019-06-11 宇龙计算机通信科技(深圳)有限公司 一种认证接入的方法、基站及终端
CN105307218B (zh) * 2015-09-21 2019-10-29 联想(北京)有限公司 一种信息处理方法及电子设备
CN110505661B (zh) * 2015-09-25 2022-03-04 展讯通信（上海）有限公司 基站及其承载服务质量控制方法
GB2542614A (en) 2015-09-25 2017-03-29 Tcl Communication Ltd Systems and methods for reporting data reception status
CN107040942A (zh) * 2016-02-04 2017-08-11 华为技术有限公司 业务流传输方法、装置及系统
CN107645747B (zh) * 2016-07-22 2020-02-21 电信科学技术研究院 一种发送和接收数据的方法及设备
EP3550883B1 (fr) 2017-03-23 2021-08-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de transmission de données de liaison montante, terminal, dispositif côté réseau, et système
CN110351771A (zh) * 2018-04-04 2019-10-18 华为技术有限公司 提高网络吞吐率的方法、装置、系统、设备和介质
CN109067571B (zh) * 2018-07-24 2021-10-15 Oppo广东移动通信有限公司 电子装置及其网络配置方法、存储介质
CN112752305B (zh) * 2019-10-29 2023-03-31 中国移动通信有限公司研究院 流量控制方法、装置、相关设备及存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103379546A (zh) * 2012-04-19 2013-10-30 华为技术有限公司 数据分流的方法和装置
CN103582011A (zh) * 2012-07-26 2014-02-12 中兴通讯股份有限公司 一种进行多网络联合传输的系统、用户设备及方法
CN103582079A (zh) * 2012-08-10 2014-02-12 中兴通讯股份有限公司 一种联合传输的实现方法和系统
CN103686859A (zh) * 2012-09-17 2014-03-26 中兴通讯股份有限公司 一种基于多网络联合传输的分流方法、系统及接入网网元
WO2014047939A1 (fr) * 2012-09-29 2014-04-03 华为技术有限公司 Procédé et dispositif de répartition de données
CN104735728A (zh) * 2015-04-10 2015-06-24 宇龙计算机通信科技(深圳)有限公司 传输业务数据流的方法和系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102984759B (zh) * 2011-09-06 2015-07-08 华为技术有限公司 数据传输方法和设备
KR101462716B1 (ko) * 2011-12-22 2014-11-19 삼성전기주식회사 트래픽 분산 가능한 통신 장치 및 방법
CN103200615B (zh) * 2012-01-10 2016-01-13 上海贝尔股份有限公司 一种在通信网络中进行数据传输的方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103379546A (zh) * 2012-04-19 2013-10-30 华为技术有限公司 数据分流的方法和装置
CN103582011A (zh) * 2012-07-26 2014-02-12 中兴通讯股份有限公司 一种进行多网络联合传输的系统、用户设备及方法
CN103582079A (zh) * 2012-08-10 2014-02-12 中兴通讯股份有限公司 一种联合传输的实现方法和系统
CN103686859A (zh) * 2012-09-17 2014-03-26 中兴通讯股份有限公司 一种基于多网络联合传输的分流方法、系统及接入网网元
WO2014047939A1 (fr) * 2012-09-29 2014-04-03 华为技术有限公司 Procédé et dispositif de répartition de données
CN104735728A (zh) * 2015-04-10 2015-06-24 宇龙计算机通信科技(深圳)有限公司 传输业务数据流的方法和系统

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