WO2014047936A1 - 数据传输方法、装置、终端及基站 - Google Patents

数据传输方法、装置、终端及基站 Download PDF

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Publication number
WO2014047936A1
WO2014047936A1 PCT/CN2012/082477 CN2012082477W WO2014047936A1 WO 2014047936 A1 WO2014047936 A1 WO 2014047936A1 CN 2012082477 W CN2012082477 W CN 2012082477W WO 2014047936 A1 WO2014047936 A1 WO 2014047936A1
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WO
WIPO (PCT)
Prior art keywords
data packet
network
wlan
rlc
rlc data
Prior art date
Application number
PCT/CN2012/082477
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English (en)
French (fr)
Inventor
桂丹
傅苗
邹品阳
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/082477 priority Critical patent/WO2014047936A1/zh
Priority to CN2012800018926A priority patent/CN103339983A/zh
Publication of WO2014047936A1 publication Critical patent/WO2014047936A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/12Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, terminal, and base station. Background technique
  • GSM networks such as cellular networks and wireless local area networks (WLANs) are gradually merging to meet the growth of mobile data traffic.
  • 3GPP 3rd Generation Partnership Project
  • I-WLAN Internet Protocol Flow Mobility and Seamless WLAN offload
  • I-WLAN Internet Protocol Flow Mobility and Seamless WLAN offload
  • I-WLAN Internet Protocol Flow Mobility and Seamless WLAN offload
  • I-WLAN Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • I0M Internet Protocol Flow Mobility and Seamless WLAN offload
  • the ANDSF is used as an access anchor to implement intelligent network selection, and the interaction between the network and the terminal is coordinated to achieve effective traffic distribution.
  • the ANDSF formulates policies based on information such as network load, terminal capabilities, and user subscription status. It can help end users select the best access network standard and implement coordinated operation of multiple access modes.
  • the above-mentioned ANDSF is usually deployed on the core network side. Therefore, when the traffic distribution policy is established, the state and quality of the user's wireless link are not perceived, and dynamic splitting cannot be performed in real time according to the state and quality of the user's wireless link. It can be seen that the existing shunting mode used in the transmission of data between the WLAN and the 3GPP network results in inefficient data transmission, and it is difficult to effectively utilize the network transmission resources. Summary of the invention
  • the embodiments of the present invention provide a data transmission method, device, terminal, and base station, so as to solve the problem that the current network cannot be dynamically shunted according to the state and quality of the user's radio link in real time, resulting in low data transmission quality and difficulty in effectively utilizing network transmission resources.
  • the problem is to solve the problem that the current network cannot be dynamically shunted according to the state and quality of the user's radio link in real time, resulting in low data transmission quality and difficulty in effectively utilizing network transmission resources.
  • a data transmission method is provided, where the method is applied to a transmitting device that supports a third generation partner project 3GPP network and a wireless local area network WLAN network, and the method includes: The sending end device acquires an RLC data packet processed by the radio link control RLC layer;
  • the determining, by using the network transmission parameters of the 3GPP network and the WLAN network, the target radio link includes:
  • the wireless link of the 3GPP network is determined to be the target wireless link, and when the second network transmission parameter is better than the first network transmission parameter, the wireless link of the WLAN network is determined as the target wireless link.
  • the network transmission parameter includes at least one of the following parameters: a radio link quality parameter, a network load parameter, and a network maximum throughput. Rate parameter.
  • the offloading the RLC data packet to the target wireless link Includes:
  • the RLC data packet is adapted, and the adapted data packet is transmitted to the wireless link of the WLAN network.
  • the adapting the RLC data packet includes:
  • another data transmission method is provided, where the method is applied to a receiving end device supporting a 3GPP network and a WLAN network, and is configured to transmit the RLC data packet transmitted by the data transmission method according to the foregoing first aspect.
  • the method includes:
  • the receiving end device Receiving, by the receiving end device, the RLC transmitted by the transmitting device by using an air interface corresponding to the target wireless link a data packet or a data packet adapted to the RLC data packet;
  • the RLC data packet or the RLC data packet after the adaptation of the adapted data packet is transmitted to the RLC layer for processing.
  • the RLC data packet or the RLC data packet after the de-packaged the matched data packet is transmitted to the RLC layer according to the type of the air interface.
  • the processing includes: transmitting, when the air interface corresponding to the target wireless link is a 3GPP air interface, the received RLC data packet to the RLC layer for processing;
  • the received adapted data packet is de-optimized to obtain an RLC data packet, and the RLC data packet after the data packet is de-adapended Transfer to the RLC layer for processing.
  • the decomposing the received adapted data packet to obtain an RLC data packet includes:
  • Reading the header of the adapted data packet obtaining protocol type information and a destination address of the data packet; when the obtained protocol type information is consistent with the saved private protocol type information, and the destination address and the location
  • the header of the data packet is deleted to obtain an RLC data packet.
  • a data transmission apparatus is provided, the apparatus being disposed on a transmitting end device supporting a 3GPP network and a WLAN network, the apparatus comprising:
  • An obtaining unit configured to acquire an RLC data packet processed by the radio link control RLC layer
  • a determining unit configured to determine a target wireless link according to network transmission parameters of the 3GPP network and the WLAN network;
  • a splitting unit configured to offload the RLC data packet acquired by the acquiring unit to a target wireless link determined by the determining unit, to send the RLC data packet or pair by using an air interface corresponding to the target wireless link
  • the adapted data packet of the RLC data packet is transmitted to the receiving end device.
  • the determining unit includes:
  • a parameter obtaining subunit configured to acquire a first network transmission parameter of the 3GPP network, and a second network transmission parameter of the WLAN network;
  • a parameter comparison subunit configured to compare the first network transmission parameter and the second network transmission parameter acquired by the parameter acquisition subunit
  • a target determining subunit configured to compare the comparison result of the subunit according to the parameter, and determine, when the first network transmission parameter is better than the second network transmission parameter, the radio link of the 3GPP network as a target wireless a link, when the second network transmission parameter is better than the first network transmission parameter, the WLAN network The wireless link is determined to be the target wireless link.
  • the traffic distribution unit includes:
  • a 3GPP transmission subunit configured to: when the target radio link determined by the determining unit is a radio link of a 3GPP network, send the RLC data packet to a radio link of the 3GPP network;
  • a WLAN adaptation subunit configured to: when the target radio link determined by the determining unit is a radio link of a WLAN network, adapt the RLC data packet;
  • a WLAN transmitting subunit configured to transmit, by the WLAN adaptation subunit, a wireless link for transmitting the WLAN adaptation subunit adapted data packet to the WLAN network.
  • the WLAN adaptation sub-unit is specifically configured to obtain private protocol type information of the RLC data packet, and an address of the receiving end device And adding a packet header to the RLC data packet to generate the adapted data packet, where the packet header includes the private protocol type information, and an address of the receiving end device as a destination address.
  • the fourth aspect provides another data transmission apparatus, where the apparatus is disposed on a receiving end device supporting a 3GPP network and a WLAN network, and configured to transmit the data packet transmitted by the data transmission apparatus provided by the foregoing third aspect, where
  • the device includes:
  • a receiving unit configured to receive, by using an air interface corresponding to the target wireless link, an RLC data packet transmitted by the sending end device or a data packet that is adapted to the RLC data packet;
  • a transmitting unit configured to: transmit, according to the type of the air interface, the RLC data packet received by the receiving unit or the RLC data packet after the decomposed the data packet to the RLC layer for processing.
  • the transmitting unit includes:
  • a 3GPP transmission subunit configured to: when the air interface corresponding to the target radio link is a 3GPP air interface, transmit the RLC data packet received by the receiving unit to an RLC layer for processing;
  • a WLAN de-adaptation sub-unit configured to: when the air interface corresponding to the target radio link is a WLAN air interface, de-adaptively adapt the received data packet received by the receiving unit to obtain an RLC data packet;
  • the WLAN transmission sub-unit is configured to transmit the RLC data packet demultiplexed by the WLAN de-configuration sub-unit to the RLC layer for processing.
  • the WLAN de-adaptive sub-unit is specifically configured to read a header of the adapted data packet, to obtain the data packet.
  • the protocol type information and the destination address when the obtained protocol type information is consistent with the saved private protocol type information, and the destination address is consistent with the address of the receiving end device, deleting the packet header of the data packet to obtain the RLC data package.
  • a fifth aspect provides a terminal, where the terminal is a terminal supporting a 3GPP network and a WLAN network, where the terminal includes: a modem modem chip and a WLAN chip, a 3GPP air interface connected to the modem chip, and a device a WLAN air interface connected to the WLAN chip, wherein
  • the modem chip is configured to acquire an RLC data packet processed by a radio link control RLC layer, and determine a target radio link according to network transmission parameters of the 3GPP network and a WLAN network, where the target radio link is a 3GPP network. Transmitting the RLC data packet to the 3GPP network interface, and when the target wireless link is a wireless link of the WLAN network, adapting the RLC data packet, and adapting Data packets are transmitted to the WLAN chip;
  • the WLAN chip is configured to transmit the adapted data packet to the WLAN network interface, where the 3GPP network interface is configured to transmit, by using the 3GPP network, the RLC data packet transmitted by the modem chip to receive End device
  • the WLAN network interface is configured to transmit, by using the WLAN network, the adapted data packet transmitted by the WLAN chip to the receiving end device;
  • the 3GPP network interface is configured to receive, by using a 3GPP network, an RLC data packet transmitted by a sending end device, and transmit the RLC data packet to the modem chip;
  • the WLAN network interface is configured to receive, by using the WLAN network, the adapted data packet transmitted by the sending end device, and transmit the data packet to the WLAN chip;
  • the WLAN chip is configured to transmit the data packet to the modem chip
  • the modem chip is configured to: after receiving the RLC data packet transmitted by the 3GPP network interface, transmit the RLC data packet to an RLC layer for processing, and after receiving the adapted data packet transmitted by the WLAN chip, Decoding the data packet, and transmitting the de-adapted RLC data packet to the RLC layer for processing.
  • the modem chip is specifically configured to acquire, when determining a target radio link according to network transmission parameters of the 3GPP network and a WLAN network, acquiring the 3GPP network Comparing the first network transmission parameter and the second network transmission parameter with a network transmission parameter, and a second network transmission parameter of the WLAN network, according to the comparison result, when the first network transmission parameter is better than the Determining, by the second network, a radio link of the 3GPP network as a target radio link, and when the second network transmission parameter is better than the first network transmission parameter, performing a radio chain of the WLAN network The path is determined to be the target wireless link.
  • the modem chip is specifically configured to: when the RLC data packet is adapted, obtain the private protocol type information of the RLC data packet, and the address of the receiving end device, add a packet header to the RLC data packet, where the packet header is Include the private protocol type information, and an address of the receiving end device as a destination address; when decomposing the adapted data packet, reading a packet header of the data packet to obtain the data packet.
  • the protocol type information and the destination address when the obtained protocol type information is consistent with the saved private protocol type information, and the destination address is consistent with the address of the receiving end device, deleting the packet header of the data packet to obtain the RLC data package.
  • a base station is provided, where the base station is a base station supporting a 3GPP network and a WLAN network, where the base station includes: a baseband board and a WLAN board, a 3GPP air interface connected to the baseband board, and the WLAN board Connected WLAN air interface, where
  • the baseband board is configured to acquire an RLC data packet processed by a radio link control RLC layer, and determine a target radio link according to network transmission parameters of the 3GPP network and a WLAN network, where the target radio link is a 3GPP network. Transmitting the RLC data packet to the 3GPP network interface, and when the target wireless link is a wireless link of the WLAN network, adapting the RLC data packet, and adapting Data packets are transmitted to the WLAN board;
  • the WLAN board is configured to transmit the adapted data packet to the WLAN network interface, where the 3GPP network interface is configured to transmit, by using the 3GPP network, the RLC data packet transmitted by the baseband board to receive End device
  • the WLAN network interface is configured to transmit, by using the WLAN network, the adapted data packet transmitted by the WLAN board to the receiving end device;
  • the 3GPP network interface is configured to receive, by using a 3GPP network, an RLC data packet that is sent by the sending end device, and transmit the RLC data packet to the baseband board;
  • the WLAN network interface is configured to receive, by using the WLAN network, the adapted data packet transmitted by the sending end device, and transmit the data packet to the WLAN board;
  • the WLAN board is configured to transmit the data packet to the baseband board
  • the baseband board is configured to: after receiving the RLC data packet transmitted by the 3GPP network interface, transmit the RLC data packet to an RLC layer for processing, and after receiving the adapted data packet transmitted by the WLAN board, Decoding the data packet, and transmitting the de-adapted RLC data packet to the RLC layer for processing.
  • the baseband board is specifically used according to the
  • the 3GPP network when the network transmission parameters of the 3GPP network and the WLAN network determine the target wireless link Comparing the first network transmission parameter and the second network transmission parameter of the WLAN network, comparing the first network transmission parameter and the second network transmission parameter, according to the comparison result, when the first network transmission parameter is superior to the Determining, by the second network transmission parameter, a wireless link of the 3GPP network as a target wireless link, and when the second network transmission parameter is better than the first network transmission parameter, performing wireless of the WLAN network The link is determined to be the target wireless link.
  • the baseband board is specifically configured to acquire, when the RLC data packet is adapted, the private use of the RLC data packet. a protocol type information, and an address of the receiving end device, adding a packet header to the RLC data packet, where the packet header includes the private protocol type information, and an address of the receiving end device as a destination address;
  • the packet header of the data packet is read, and the protocol type information and the destination address of the data packet are obtained.
  • the obtained protocol type information is consistent with the saved private protocol type information
  • the destination address is consistent with the address of the receiving end device, deleting the packet header of the data packet to obtain an RLC data packet.
  • the source device obtains the RLC data packet processed by the RLC layer, determines the target wireless link according to the network transmission parameters of the 3GPP network and the WLAN network, and offloads the RLC data packet to the target wireless link to pass the target.
  • the air interface corresponding to the wireless link transmits the RLC data packet or the data packet adapted to the RLC data packet to the receiving end device; the receiving end device receives the RLC data transmitted by the transmitting end device through the air interface corresponding to the target wireless link.
  • the RLC data packet or the RLC data packet after the adaptation of the adapted data packet is transmitted to the RLC layer for processing according to the type of the air interface.
  • the embodiment of the present invention determines the target wireless link by using the network transmission parameter. Because the network transmission parameter type is large, the traffic distribution mode is flexible, and the RLC data packet processed by the RLC layer can be used. Transmission through a better quality wireless link can improve data transmission efficiency and effectively utilize network transmission resources.
  • FIG. 1 is a flow chart of an embodiment of a data transmission method according to the present invention.
  • FIG. 2 is a flow chart of another embodiment of a data transmission method according to the present invention:
  • 3 is a flow chart of another embodiment of a data transmission method according to the present invention.
  • 4 is a flow chart of another embodiment of a data transmission method according to the present invention.
  • FIG. 5 is a schematic structural diagram of a communication system to which an embodiment of a data transmission method of the present invention is applied;
  • FIG. 6 is a block diagram of an embodiment of a data transmission apparatus according to the present invention.
  • Figure 7 is a block diagram of another embodiment of a data transmission device of the present invention.
  • FIG. 8 is a block diagram of an embodiment of a terminal of the present invention.
  • FIG. 9 is a block diagram of an embodiment of a base station of the present invention. detailed description
  • the following embodiments of the present invention provide a data transmission method, apparatus, terminal, and base station.
  • Both the sender device and the receiver device described in the embodiments of the present invention are devices capable of supporting a 3GPP network and a WLAN network.
  • the sending end device may be a terminal, and the corresponding receiving end device is a base station; or the sending end device may be a base station, and the corresponding receiving end device is a terminal.
  • FIG. 1 is a flowchart of an embodiment of a data transmission method according to the present invention
  • the embodiment describes a data transmission process from a device side of a transmitting device:
  • Step 101 The sender device acquires an RLC data packet processed by the RLC layer.
  • the data packet acquired by the source device is an RLC data packet processed by a radio link control (RLC) layer.
  • RLC radio link control
  • Step 102 Determine a target wireless link according to network transmission parameters of the 3GPP network and the WLAN network.
  • the receiving device acquires the first network transmission parameter of the 3GPP network, and the second network transmission parameter of the WLAN network, and compares the first network transmission parameter with the second network transmission parameter, according to the comparison.
  • the first network transmission parameter is better than the second network transmission parameter
  • determining a radio link of the 3GPP network as a target radio link when the second network transmission parameter is better than the first
  • the wireless link of the WLAN network is determined as the target wireless link.
  • the network transmission parameter includes at least one of the following parameters: a radio link quality parameter, a network load parameter, and a network maximum throughput rate parameter. For example, if the network transmission parameter is a radio link quality parameter, the radio link of the network with better radio link quality is determined as the target radio link; if the network transmission parameter is the network load parameter, the network load is small. The wireless link of the network is determined as the target wireless link; if the network transmission parameter is the maximum throughput parameter of the network, the wireless link of the network with the largest network throughput is determined as the target wireless chain. Road.
  • weights can be set for each network transmission parameter, and the comprehensive values of all network transmission parameters of each network are obtained according to the weights of different network transmission parameters, and the comprehensive value is higher.
  • the wireless link of the network is determined to be the target wireless link.
  • the foregoing implementation may determine the target wireless link according to the network transmission parameters of the 3GPP network and the WLAN network; or, after acquiring the first RLC data packet, Determining a target radio link according to network transmission parameters of the 3GPP network and the WLAN network, and all subsequent received RLC data packets are offloaded according to the determined target radio link; or, the time period may be preset and according to the time period.
  • the target radio link is determined according to the network transmission parameters of the 3GPP network and the WLAN network, and the specific length of the time period may be flexibly set in an actual application, which is not limited in this embodiment of the present invention.
  • Step 103 offload the RLC data packet to the determined target wireless link, to use the air interface corresponding to the target wireless link to adapt the RLC data packet or the data packet to the RLC data packet. Transfer to the receiving device.
  • the RLC data packet is sent to a wireless link of the 3GPP network, and the RLC data packet is transmitted by the 3GPP air interface to the receiving end through the 3GPP network.
  • the target wireless link is a wireless link of a WLAN network
  • the interface transmits the adapted data packet to the receiving device through the WLAN network.
  • the embodiment is applied to a communication network in which a WLAN network and a 3GPP network are interconnected, and the target wireless link is determined by using network transmission parameters. Since the network transmission parameters are various, the traffic distribution mode is flexible, and the RLC layer can be used. The processed RLC data packet is transmitted through a wireless link with better quality, thereby improving data transmission efficiency and effectively utilizing transmission resources of the network.
  • FIG. 2 it is a flowchart of another embodiment of a data transmission method according to the present invention. The embodiment describes a data transmission process from a device side of a transmitting device:
  • Step 201 The sender device acquires an RLC data packet processed by the RLC layer.
  • the data packet that needs to be offloaded by the source device and needs to be offloaded by the different network may be the RLC data packet processed by the APP layer, the TCP/UDP layer, the IP layer, the PDCP layer, and the RLC layer.
  • Step 202 Acquire a first network transmission parameter of the 3GPP network, and a second network transmission parameter of the WLAN network.
  • the network transmission parameter may include at least one of the following parameters: a radio link quality parameter, a network Network load parameters, network maximum throughput parameters.
  • the network transmission parameter may include a radio link quality parameter measured by the terminal, and a pre-known network maximum throughput rate parameter; when the source device is a base station, the network transmission parameter may include The radio link quality parameter reported by the terminal, the pre-known network maximum throughput rate parameter, and the network load parameter reported by the network.
  • the first network transmission parameter and the second network transmission parameter acquired by the source device include the same type of parameters, so that the first network transmission parameter and the second network transmission parameter can be compared.
  • Step 203 Compare whether the first network transmission parameter is better than the second network transmission parameter, and if yes, perform step 204; otherwise, perform step 206.
  • the network transmission parameter when comparing whether the first network transmission parameter is better than the second network transmission parameter, if the network transmission parameter is a radio link quality parameter, determining a radio link of the network with better radio link quality is Target wireless link; if the network transmission parameter is a network load parameter, the wireless link of the network with less network load is determined as the target wireless link; if the network transmission parameter is the network maximum throughput parameter, the maximum throughput rate of the network is The wireless link of the larger network is determined to be the target wireless link.
  • weights can be set for each network transmission parameter, and the comprehensive values of all network transmission parameters of each network are obtained according to the weights of different network transmission parameters, and the comprehensive value is higher.
  • the wireless link of the network is determined to be the target wireless link.
  • Step 204 Determine that the radio link of the 3GPP network is the target radio link, and send the RLC data packet to the radio link of the 3GPP network.
  • the radio link of the 3GPP network is determined to be the target radio link, and the RLC data packet is transmitted to the radio link of the 3GPP network.
  • Step 205 The 3GPP air interface corresponding to the radio link of the 3GPP network transmits the RLC data packet to the receiving end device through the 3GPP network, and ends the current process.
  • Step 206 Determine that the wireless link of the WLAN network is the target wireless link, and adapt the RLC data packet.
  • the second network transmission parameter is superior to the first network transmission parameter, it is determined that the wireless link of the WLAN network is the target wireless link, and the RLC data packet needs to be adapted into a data packet that can be transmitted through the WLAN network.
  • the receiving device may obtain the private protocol type information of the RLC data packet and the address of the receiving end device, and add a packet header to the RLC data packet to generate the adapted data packet.
  • the private header type information is included in the header, and the address of the receiving end device as the destination address.
  • the RLC data packet may be IP-adapted, that is, the IP header is encapsulated in the RLC data packet. If the private protocol type information pre-agreed by the transmitting device and the receiving device is "0xff", the transmitting device will "Oxff" is written to the IP header, and the destination IP address of the IP header is set to the IP address of the receiving device.
  • the destination IP address is the IP address of the WLAN network card of the terminal.
  • the destination IP address is the IP address of the baseband board of the base station.
  • the Medium Access Control (MAC) adaptation may be performed on the RLC data packet, that is, the MAC header is encapsulated in the RLC data packet, and the private protocol type information pre-agreed by the transmitting device and the receiving device is assumed.
  • the sender device writes "Oxffff" to the MAC header, and sets the destination MAC address of the MAC header to the MAC address of the receiving device.
  • the receiving device is the terminal
  • the destination MAC address is the terminal.
  • the destination MAC address is the MAC address of the baseband board of the base station.
  • Step 207 Transmit the adapted data packet to the wireless link of the WLAN network.
  • Step 208 The WLAN air interface corresponding to the wireless link of the WLAN network transmits the data packet to the receiving end device through the WLAN network, and ends the current process.
  • the foregoing implementation may determine the target wireless link according to the network transmission parameters of the 3GPP network and the WLAN network; or, after acquiring the first RLC data packet, Determining a target radio link according to network transmission parameters of the 3GPP network and the WLAN network, and all subsequent received RLC data packets are offloaded according to the determined target radio link; or, the time period may be preset and according to the time period.
  • the target radio link is determined according to the network transmission parameters of the 3GPP network and the WLAN network, and the specific length of the time period may be flexibly set in an actual application, which is not limited in this embodiment of the present invention.
  • the embodiment is applied to a communication network in which a WLAN network and a 3GPP network are interconnected, and the target wireless link is determined by using network transmission parameters. Since the network transmission parameters are various, the traffic distribution mode is flexible, and the RLC layer can be used.
  • the processed RLC data packet is transmitted through a wireless link with better quality, thereby improving data transmission efficiency and effectively utilizing transmission resources of the network.
  • FIGS. 1 and 2 the following FIG. 3 and FIG. 4 embodiments show that the receiving end device performs data transmitted by the transmitting device. transmission.
  • FIG. 3 it is a flowchart of another embodiment of a data transmission method according to the present invention.
  • the embodiment describes a data transmission process from a receiving device side:
  • Step 301 The receiving end device receives, by using an air interface corresponding to the target wireless link, an RLC data packet transmitted by the sending end device or a data packet that is adapted to the RLC data packet.
  • the receiving device passes The 3GPP air interface receives the RLC data packet transmitted by the 3GPP air interface of the transmitting device; when the target wireless link of the transmitting device is the wireless link of the WLAN network, the receiving device receives the WLAN air of the transmitting device through the WLAN air interface.
  • Step 302 Transmit the RLC data packet or the RLC data packet after the adaptation of the adapted data packet to the RLC layer for processing according to the type of the air interface corresponding to the target wireless link.
  • the receiving end device transmits the received RLC data packet to the RLC layer for processing; when the air interface corresponding to the target radio link is the WLAN air interface, receiving The end device de-optimizes the received adapted data packet to obtain an RLC data packet, and transmits the de-adapted RLC data packet to the RLC layer for processing.
  • the embodiment is applied to a communication network in which a WLAN network and a 3GPP network are interconnected. Since the transmitting device determines the target wireless link by using network transmission parameters, and the network transmission parameter types are large, the transmitting device is The traffic distribution mode is flexible, and the RLC data packet processed by the RLC layer can be transmitted through a wireless link with better quality, thereby effectively utilizing the transmission resource of the network and improving the quality of data received by the receiving device.
  • FIG. 4 it is a flowchart of another embodiment of a data transmission method according to the present invention.
  • the embodiment describes a data transmission process from a receiving device side:
  • Step 401 The receiving end device receives the RLC data packet or the data packet after the RLC data packet is adapted.
  • the receiving device when the target wireless link of the transmitting device is a wireless link of the 3GPP network, the receiving device receives the RLC data packet transmitted by the 3GPP air interface of the transmitting device through the 3GPP air interface; and the target wireless link of the transmitting device When the wireless link is a WLAN network, the receiving device receives the data packet that is adapted by the WLAN air interface of the transmitting device to the RLC data packet through the WLAN air interface.
  • Step 402 Determine the type of the air interface that receives the data packet. If it is a 3GPP air interface, perform step 403. If it is a WLAN air interface, perform step 404.
  • Step 403 The received RLC data packet is transmitted to the RLC layer for processing, and the current process is ended.
  • the data packet is a data packet that can be transmitted through the WLAN network after the RLC data packet is adapted, so the data packet needs to be de-adapted for the receiving end device. It can be processed.
  • the receiving device can read the packet header of the data packet to obtain the protocol type information and the destination address of the data packet; when the obtained protocol type information and the saved private protocol type information are When the destination address is consistent with the address of the receiving device, the header of the data packet is deleted to obtain an RLC data packet.
  • step 206 of the foregoing method embodiment shown in FIG. 2 when the transmitting end device performs IP adaptation on the RLC data packet, after receiving the data packet, the receiving end device reads the IP header of the data packet. The protocol type information and the destination IP address are obtained. If the private protocol type information saved by the receiving device is "0xff", and the IP address of the receiving device is consistent with the destination IP address, the receiving device decapsulates the IP header.
  • step 206 of the foregoing method embodiment shown in FIG. 2 when the transmitting end device performs MAC adaptation on the RLC data packet, the receiving end device reads the MAC header of the data packet after receiving the data packet. And obtaining the protocol type information and the destination IP address. If the private protocol type information saved by the receiving device is "Oxffff", and the MAC address of the receiving device is consistent with the destination MAC address, the receiving device decapsulates the MAC header. .
  • Step 405 The de-adapted data packet is transmitted to the RLC layer for processing, and the current process is ended.
  • the embodiment is applied to a communication network in which a WLAN network and a 3GPP network are interconnected. Since the transmitting device determines the target wireless link by using network transmission parameters, and the network transmission parameter types are large, the transmitting device is The traffic distribution mode is flexible, and the RLC data packets processed by the RLC layer can be transmitted through a network with better quality, thereby effectively utilizing the transmission resources of the network and improving the quality of data received by the receiving device.
  • 5 is a schematic structural diagram of a communication system for applying the data transmission method embodiment of the present invention.
  • the communication system in FIG. 5 is exemplified by a Long Term Evolution (LTE) communication system, and the terminal in the system supports 3GPP.
  • LTE Long Term Evolution
  • a dual mode terminal for network and WLAN networks the base station is a dual system base station supporting 3GPP networks and WLAN networks.
  • the embodiment of the present invention is not limited to application in an LTE network, and may also be applied to a Universal Mobile Telecommunications System (UMTS) network, or Worldwide Interoperability for Microwave Access (WiMax).
  • UMTS Universal Mobile Telecommunications System
  • WiMax Worldwide Interoperability for Microwave Access
  • the dual mode terminal mainly includes a shunt anchor module, an adaptation module, a Uu interface (ie, 3GPP air interface) for communicating with the dual system base station, and a P 802.11 interface (ie, a WLAN air interface); It includes a shunt anchor module, an adaptation module, a Uu interface (ie, 3GPP air interface) for communication with the dual mode terminal, and an 802.11 interface (ie, WLAN air interface).
  • the transmitting device is a dual-mode terminal and the receiving device is a dual-system base station.
  • the shunt anchor module receives the RLC protocol data units (PDUs) processed by the RLC layer, and the shunt anchor module compares the network transmission parameters of the 3GPP network with the WLAN network ( The network transmission parameters, also referred to as 802.11 networks, determine the target wireless link.
  • PDUs RLC protocol data units
  • the network transmission parameters also referred to as 802.11 networks, determine the target wireless link.
  • the RLC PDUs are transmitted to the shunt anchor module, and the RLC PDUs are directly transmitted to the core through the S1 interface by the shunt anchor module.
  • the PDUs are transmitted to the adaptation module, and the adaptation module de-assembles the PDUs into RLC PDUs that can be transmitted in the 3GPP network, and then the adaptation module The demultiplexed RLC PDUs are transmitted to the offload anchor module, and the RLC PDUs are transmitted by the offload anchor module to the core network through the S1 interface.
  • the target radio link is determined by the network transmission parameter. Because there are many types of network transmission parameters, the traffic distribution mode is flexible, and the RLC data packet processed by the RLC layer can be transmitted through a wireless link with better quality, thereby improving The transmission quality of the data, and can effectively utilize the transmission resources of the network.
  • the present invention when transmitting data in the embodiment of the present invention, since the wireless link state of the network can be perceived in real time, the load of a certain network is not excessively high; and when the wireless link of one network is disconnected, another The wireless link of the network transmits data so there is no service disruption.
  • the present invention also provides an embodiment of a data transmission apparatus, a terminal, and a base station.
  • the apparatus in this embodiment may be disposed on a transmitting end device supporting a 3GPP network and a WLAN network, and the transmitting end device may be a terminal or a base station.
  • the data transmission device includes: an obtaining unit 610, a determining unit 620, and a branching unit 630.
  • the obtaining unit 610 is configured to obtain an RLC data packet that is processed by the radio link control RLC layer, and the determining unit 620 is configured to determine a target radio link according to the network transmission parameters of the 3GPP network and the WLAN network.
  • the offloading unit 630 is configured to offload the RLC data packet acquired by the acquiring unit 610 to a target radio link determined by the determining unit 620, to send the RLC data by using an air interface corresponding to the target radio link.
  • the packet or the data packet adapted to the RLC data packet is transmitted to the receiving end device.
  • the determining unit 620 may include (not shown in FIG. 6):
  • a parameter obtaining subunit configured to acquire a first network transmission parameter of the 3GPP network, and a second network transmission parameter of the WLAN network;
  • a parameter comparison subunit configured to compare the first network transmission parameter and the second network transmission parameter acquired by the parameter acquisition subunit
  • a target determining subunit configured to compare the comparison result of the subunit according to the parameter, and determine, when the first network transmission parameter is better than the second network transmission parameter, the radio link of the 3GPP network as a target wireless a link, when the second network transmission parameter is better than the first network transmission parameter, determining a radio link of the WLAN network as a target radio link.
  • the shunting unit 630 can include (not shown in FIG. 6):
  • a 3GPP transmission subunit configured to: when the target radio link determined by the determining unit is a radio link of a 3GPP network, send the RLC data packet to a radio link of the 3GPP network;
  • a WLAN adaptation subunit configured to: when the target radio link determined by the determining unit is a radio link of a WLAN network, adapt the RLC data packet;
  • a WLAN transmitting subunit configured to transmit the adapted data packet of the WLAN adaptation subunit to a wireless link of the WLAN network.
  • the WLAN adaptation sub-unit may be specifically configured to obtain the private protocol type information of the RLC data packet, and the address of the receiving end device, and add a packet header to the RLC data packet to generate the adapted a data packet, the packet header includes the private protocol type information, and an address of the receiving end device as a destination address.
  • FIG. 7 which is a block diagram of another embodiment of a data transmission apparatus according to the present invention, the apparatus in this embodiment may be disposed on a receiving end device supporting a 3GPP network and a WLAN network, and the receiving end device may be a terminal or a base station.
  • the data transmission device includes: a receiving unit 710 and a transmission unit 720.
  • the receiving unit 710 is configured to receive, by using an air interface corresponding to the target wireless link, an RLC data packet transmitted by the sending end device or a data packet that is adapted to the RLC data packet.
  • the transmitting unit 720 is configured to receive the receiving according to a type of the air interface corresponding to the target wireless link.
  • the RLC data packet received by the unit 710 or the RLC data packet after the demultiplexed data packet is demodulated is transmitted to the RLC layer for processing.
  • the transmission unit 720 may include (not shown in FIG. 7):
  • a 3GPP transmission subunit configured to: when the air interface corresponding to the target radio link is a 3GPP air interface, demultiplexing the adapted data packet received by the receiving unit to obtain an RLC data packet;
  • a WLAN de-adaptation sub-unit configured to de-interlease the RLC data packet received by the receiving unit when the air interface corresponding to the target wireless link is a WLAN air interface
  • the WLAN transmission sub-unit is configured to transmit the RLC data packet demultiplexed by the WLAN de-configuration sub-unit to the RLC layer for processing.
  • the WLAN de-adaptive sub-unit may be specifically configured to read a header of the adapted data packet, obtain protocol type information and a destination address of the data packet, and obtain the protocol type information and When the saved private protocol type information is consistent, and the destination address is consistent with the address of the receiving end device, the packet header of the data packet is deleted to obtain an RLC data packet.
  • FIG. 8 which is a block diagram of an embodiment of a terminal according to the present invention, the terminal is a terminal supporting a 3GPP network and a WLAN network.
  • the terminal includes: a modem modem 810, a WLAN chip 820, a 3GPP air interface 830 connected to the modem chip 810, and a WLAN air interface 840 connected to the WLAN chip 820.
  • the modem chip 810 is configured to acquire an RLC data packet processed by a radio link control RLC layer, and determine a target wireless link according to network transmission parameters of the 3GPP network and a WLAN network, where the target wireless link is a 3GPP network. Transmitting the RLC data packet to the 3GPP network interface 830, when the target wireless link is a wireless link of the WLAN network, adapting the RLC data packet, and adapting The matched data packet is transmitted to the WLAN chip 820;
  • the WLAN chip 820 is configured to transmit the adapted data packet to the WLAN network interface 840.
  • the 3GPP network interface 830 is configured to transmit the RLC data of the modem chip 810 by using the 3GPP network. The packet is transmitted to the receiving device;
  • the WLAN network interface 840 is configured to transmit, by using the WLAN network, the data packet transmitted by the WLAN chip 820 to the receiving end device;
  • the 3GPP network interface 830 is configured to receive, by using a 3GPP network, an RLC data packet transmitted by a sending end device, where And transmitting the RLC data packet to the modem chip 810;
  • the WLAN network interface 840 is configured to receive, by using the WLAN network, the adapted data packet transmitted by the sending end device, and transmit the data packet to the WLAN chip 820;
  • the WLAN chip 820 is configured to transmit the data packet to the modem chip 810;
  • the modem chip 810 is configured to: after receiving the RLC data packet transmitted by the 3GPP network interface 830, transmit the RLC data packet to the RLC layer for processing, and receive the adapted data transmitted by the WLAN chip 820. After the packet, the data packet is de-optimized, and the de-adapted RLC data packet is transmitted to the RLC layer for processing.
  • the modem chip 810 may be specifically configured to acquire a first network transmission parameter of the 3GPP network, and the WLAN when determining a target radio link according to network transmission parameters of the 3GPP network and a WLAN network. a second network transmission parameter of the network, comparing the first network transmission parameter and the second network transmission parameter, according to the comparison result, when the first network transmission parameter is better than the second network transmission parameter, The wireless link of the 3GPP network is determined to be a target wireless link, and when the second network transmission parameter is better than the first network transmission parameter, the wireless link of the WLAN network is determined as a target wireless link.
  • the modem chip 810 may be specifically configured to: when the RLC data packet is adapted, obtain the private protocol type information of the RLC data packet, and the address of the receiving end device, where the RLC data is a packet header is included, the packet header includes the private protocol type information, and an address of the receiving end device as a destination address; when the adapted data packet is decomposed, the data packet is read The packet header obtains the protocol type information and the destination address of the data packet. When the obtained protocol type information is consistent with the saved private protocol type information, and the destination address is consistent with the address of the receiving device, the device is deleted. The header of the packet is obtained from the RLC packet.
  • the function of the shunt anchor module of the dual mode terminal and the function of the adaptation module can be integrated on the modem chip in this embodiment.
  • FIG. 9 which is a block diagram of an embodiment of a base station according to the present invention, the base station is a base station supporting a 3GPP network and a WLAN network.
  • the base station includes: a baseband board 910, a WLAN board 920, a 3GPP air interface 930 connected to the baseband board 910, and a WLAN air interface 940 connected to the WLAN board 920.
  • the baseband board 910 is configured to acquire an RLC data packet processed by the radio link control RLC layer, and determine a target radio link according to network transmission parameters of the 3GPP network and the WLAN network, where the target radio link is Transmitting the RLC data packet to the 3GPP network interface 930 when the wireless link of the 3GPP network is, and adapting the RLC data packet when the target wireless link is a wireless link of the WLAN network, and Transmitting the adapted data packet to the WLAN board 920;
  • the WLAN board 920 is configured to transmit the adapted data packet to the WLAN network interface 940.
  • the 3GPP network interface 930 is configured to use the 3GPP network to transmit the RLC data packet of the baseband board. Transfer to the receiving device;
  • the WLAN network interface 940 is configured to transmit, by using the WLAN network, the adapted data packet transmitted by the WLAN board 920 to the receiving end device;
  • the 3GPP network interface 930 is configured to receive, by using a 3GPP network, an RLC data packet transmitted by a sending end device, and transmit the RLC data packet to the baseband board 910;
  • the WLAN network interface 940 is configured to receive, by using the WLAN network, the adapted data packet transmitted by the sending device, and transmit the data packet to the WLAN board 920;
  • the WLAN board 920 is configured to transmit the data packet to the baseband board 910;
  • the baseband board 910 is configured to: after receiving the RLC data packet transmitted by the 3GPP network interface,
  • the RLC data packet is transmitted to the RLC layer for processing. After receiving the adapted data packet transmitted by the WLAN board 920, the data packet is de-optimized, and the de-adapted RLC data packet is transmitted to the RLC. The layer is processed.
  • the baseband board 910 may be specifically configured to acquire a first network transmission parameter of the 3GPP network, and the WLAN when determining a target radio link according to network transmission parameters of the 3GPP network and a WLAN network. a second network transmission parameter of the network, comparing the first network transmission parameter and the second network transmission parameter, according to the comparison result, when the first network transmission parameter is better than the second network transmission parameter, The wireless link of the 3GPP network is determined to be a target wireless link, and when the second network transmission parameter is better than the first network transmission parameter, the wireless link of the WLAN network is determined as a target wireless link.
  • the baseband board 910 may be specifically configured to: when the RLC data packet is adapted, obtain the private protocol type information of the RLC data packet, and the address of the receiving end device, where the RLC data is a packet header is included, the packet header includes the private protocol type information, and an address of the receiving end device as a destination address; when the adapted data packet is decomposed, the data packet is read The packet header obtains the protocol type information and the destination address of the data packet. When the obtained protocol type information is consistent with the saved private protocol type information, and the destination address is consistent with the address of the receiving device, the device is deleted. The header of the packet is obtained from the RLC packet.
  • the transmitting device obtains the RLC data packet processed by the RLC layer, determines the target wireless link according to the network transmission parameters of the 3GPP network and the WLAN network, and offloads the RLC data packet to the target wireless link. And transmitting, by the air interface corresponding to the target wireless link, the RLC data packet or the data packet that is adapted to the RLC data packet to the receiving end device; the receiving end device receives the sending and receiving by using an air interface corresponding to the target wireless link.
  • the RLC data packet transmitted by the end device or the data packet after the RLC data packet is adapted, according to the type of the air interface, the RLC data packet is demultiplexed or the RLC data packet transmitted after the adapted data packet is adapted. Go to the RLC layer for processing.
  • the embodiment of the present invention determines the target wireless link by using the network transmission parameter. Because the network transmission parameter type is large, the traffic distribution mode is flexible, and the RLC data packet processed by the RLC layer can be used. Transmission through a better quality wireless link can improve data transmission efficiency and effectively utilize network transmission resources.
  • the techniques in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a storage medium such as a ROM/RAM. , a diskette, an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention or in some portions of the embodiments.
  • a computer device which may be a personal computer, server, or network device, etc.

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Abstract

公开了数据传输方法、装置、终端及基站,所述方法包括:发送端设备获取经过RLC层处理的RLC数据包;根据所述3GPP网络和WLAN网络的网络传输参数确定目标无线链路;将所述RLC数据包分流到所述目标无线链路,以通过所述目标无线链路对应的空中接口将所述RLC数据包或对所述RLC数据包进行适配后的数据包传输到接收端设备。本发明通过网络传输参数确定目标无线链路,由于网络传输参数可以包含用户的无线链路状态和质量信息,能够实时的根据用户的无线链路状态和质量信息进行动态分流,因此可以将RLC层处理后的RLC数据包通过质量较好的无线链路进行传输,从而可以提高数据的传输质量,并且可以有效利用网络的传输资源。

Description

数据传输方法、 装置、 终端及基站
技术领域 本发明涉及通信技术领域, 特别涉及数据传输方法、 装置、 终端及基站。 背景技术
随着智能终端和移动互联网应用的快速发展, 以全球移动通信系统 (Global
System for Mobi le Communications , GSM ) 网络为例的蜂窝网络和无线局域网 (Wireless Local Area Networks, WLAN)逐步融合, 以便满足移动数据流量的增长。 为了实现 WLAN和蜂窝网络的互联互通, 第三代合作伙伴项目 (The 3rd Generation Partnership Project, 3GPP)作为制定并推广基于演进的 GSM核心网络的 3G标准的 组织, 提出了互联互通 -无线局域网 ( Interworking- Wireless Local Area Network, I-WLAN)、互联网协议流的移动性和无缝 WLAN分流(Internet Protocol Flow Mobi l ity and seamless WLAN offload, IF0M)、 接入网发现和选择功能单元 (Access Network Discovery Support Functions, ANDSF) 等 WLAN网络与 3GPP网络互联互通的标准。
以 3GPP R10定义的 ANDSF标准为例, ANDSF作为接入锚点实现智能选网, 通过 网络与终端的交互协同, 实现网络接入的有效分流。 ANDSF基于网络负荷、终端能力、 用户签约情况等信息制定策略,可以帮助终端用户选择最佳接入的网络制式, 实现多 种接入方式的协同运营。现有技术中上述 ANDSF通常部署在核心网侧, 因此制定分流 策略时, 不会感知用户无线链路的状态和质量, 不能实时根据用户无线链路的状态和 质量进行动态分流。 由此可知,现有在 WLAN与 3GPP融合的网络中传输数据时所采用 的分流方式导致数据传输效率不高, 难以有效利用网络传输资源。 发明内容
本发明实施例提供了数据传输方法、装置、 终端及基站, 以解决现有技术中无法 实时根据用户无线链路状态和质量进行动态的分流, 导致数据传输质量不高,难以有 效利用网络传输资源的问题。
为了解决上述技术问题, 本发明实施例公开了如下技术方案:
第一方面, 提供一种数据传输方法, 所述方法应用在支持第三代合作伙伴项目 3GPP网络和无线局域网 WLAN网络的发射端设备上, 所述方法包括: 所述发送端设备获取经过无线链路控制 RLC层处理的 RLC数据包;
根据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路;
将所述 RLC数据包分流到所述目标无线链路,以通过所述目标无线链路对应的空 中接口将所述 RLC数据包或对所述 RLC数据包进行适配后的数据包传输到接收端设 备。
结合第一方面, 在第一种可能的实现方式中, 所述根据所述 3GPP 网络和 WLAN 网络的网络传输参数确定目标无线链路, 包括:
获取所述 3GPP网络的第一网络传输参数,以及所述 WLAN网络的第二网络传输参 数;
比较所述第一网络传输参数和所述第二网络传输参数;
根据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时,将所述
3GPP 网络的无线链路确定为目标无线链路, 当所述第二网络传输参数优于所述第一 网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
结合第一方面, 或第一种可能的实现方式, 在第二种可能的实现方式中, 所述网 络传输参数包括至少一种下述参数: 无线链路质量参数、 网络负荷参数、 网络最大吞 吐率参数。
结合第一方面, 或第一种可能的实现方式, 或第二种可能的实现方式, 在第三种 可能的实现方式中, 所述将所述 RLC数据包分流到所述目标无线链路, 包括:
当所述目标无线链路为 3GPP网络的无线链路时, 将所述 RLC数据包发送到所述 3GPP网络的无线链路;
当所述目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并将适配后的数据包传输到所述 WLAN网络的无线链路。
结合第三种可能的实现方式,在第四种可能的实现方式中,所述对 RLC数据包进 行适配, 包括:
获取所述 RLC数据包的私有协议类型信息, 以及所述接收端设备的地址; 为所述 RLC数据包添加包头生成所述适配后的数据包,所述包头中包含所述私有 协议类型信息, 以及作为目的地址的所述接收端设备的地址。
第二方面, 提供另一种数据传输方法, 所述方法应用在支持 3GPP 网络和 WLAN 网络的接收端设备上,用于对前述第一方面所述的数据传输方法所传输的 RLC数据包 进行传输, 所述方法包括:
所述接收端设备通过目标无线链路对应的空中接口接收发送端设备传输的 RLC 数据包或对所述 RLC数据包进行适配后的数据包;
根据所述空中接口的类型,将所述 RLC数据包或解适配所述适配后的数据包后的 RLC数据包传输到 RLC层进行处理。
结合第二方面, 在第一种可能的实现方式中, 所述根据空中接口的类型, 将所述 RLC数据包或解适配所述配后的数据包后的 RLC数据包传输到 RLC层进行处理,包括: 当所述目标无线链路对应的空中接口为 3GPP空中接口时, 将接收到的 RLC数据 包传输到 RLC层进行处理;
当所述目标无线链路对应的空中接口为 WLAN空中接口时, 对接收到的适配后的 数据包进行解适配得到 RLC数据包, 并将解适配所述数据包后的 RLC数据包传输到 RLC层进行处理。
结合第一种可能的实现方式,在第二种可能的实现方式中,所述对接收到的适配 后的数据包进行解适配得到 RLC数据包, 包括:
读取所述适配后的数据包的包头, 获得所述数据包的协议类型信息和目的地址; 当获得的所述协议类型信息与保存的私有协议类型信息一致,且所述目的地址与 所述接收端设备的地址一致时, 删除所述数据包的包头得到 RLC数据包。
第三方面,提供一种数据传输装置,所述装置设置在支持 3GPP网络和 WLAN网络 的发射端设备上, 所述装置包括:
获取单元, 用于获取经过无线链路控制 RLC层处理的 RLC数据包;
确定单元,用于根据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链 路;
分流单元,用于将所述获取单元获取的所述 RLC数据包分流到所述确定单元确定 的目标无线链路,以通过所述目标无线链路对应的空中接口将所述 RLC数据包或对所 述 RLC数据包进行适配后的数据包传输到接收端设备。
结合第三方面, 在第一种可能的实现方式中, 所述确定单元包括:
参数获取子单元, 用于获取所述 3GPP网络的第一网络传输参数, 以及所述 WLAN 网络的第二网络传输参数;
参数比较子单元,用于比较所述参数获取子单元获取的所述第一网络传输参数和 所述第二网络传输参数;
目标确定子单元,用于根据所述参数比较子单元的比较结果, 当所述第一网络传 输参数优于所述第二网络传输参数时, 将所述 3GPP网络的无线链路确定为目标无线 链路, 当所述第二网络传输参数优于所述第一网络传输参数时, 将所述 WLAN网络的 无线链路确定为目标无线链路。
结合第三方面, 或第一种可能的实现方式, 在第二种可能的实现方式中, 所述分 流单元包括:
3GPP发送子单元, 用于当所述确定单元确定的目标无线链路为 3GPP网络的无线 链路时, 将所述 RLC数据包发送到所述 3GPP网络的无线链路;
WLAN适配子单元, 用于当所述确定单元确定的目标无线链路为 WLAN网络的无线 链路时, 对所述 RLC数据包进行适配;
WLAN发送子单元, 用于将所述 WLAN适配子单元适配后的用于将所述 WLAN适配 子单元适配后的数据包传输到所述 WLAN网络的无线链路。
结合第二种可能的实现方式, 在第三种可能的实现方式中, 所述 WLAN适配子单 元,具体用于获取所述 RLC数据包的私有协议类型信息,以及所述接收端设备的地址, 为所述 RLC数据包添加包头生成所述适配后的数据包,所述包头中包含所述私有协议 类型信息, 以及作为目的地址的所述接收端设备的地址。
第四方面, 提供另一种数据传输装置, 所述装置设置在支持 3GPP 网络和 WLAN 网络的接收端设备上,用于对前述第三方面提供的数据传输装置所传输的数据包进行 传输, 所述装置包括:
接收单元, 用于通过目标无线链路对应的空中接口接收发送端设备传输的 RLC 数据包或对所述 RLC数据包进行适配后的数据包;
传输单元,用于根据所述空中接口的类型,将所述接收单元接收到的 RLC数据包 或解适配所述配后的数据包后的 RLC数据包传输到 RLC层进行处理。
结合第四方面, 在第一种可能的实现方式中, 所述传输单元包括:
3GPP传输子单元,用于当所述目标无线链路对应的空中接口为 3GPP空中接口时, 将所述接收单元接收到的 RLC数据包传输到 RLC层进行处理;
WLAN解适配子单元, 用于当所述目标无线链路对应的空中接口为 WLAN空中接口 时, 对所述接收单元接收到的适配后的数据包进行解适配得到 RLC数据包;
WLAN传输子单元, 用于将所述 WLAN解适配子单元解适配后的 RLC数据包传输到 RLC层进行处理。
结合第一种可能的实现方式, 在第二种可能的实现方式中, 所述 WLAN解适配子 单元, 具体用于读取所述适配后的数据包的包头, 获得所述数据包的协议类型信息和 目的地址, 当获得的所述协议类型信息与保存的私有协议类型信息一致, 且所述目的 地址与所述接收端设备的地址一致时, 删除所述数据包的包头得到 RLC数据包。 第五方面, 提供一种终端, 所述终端为支持 3GPP网络和 WLAN网络的终端, 所述 终端包括: 调制解调 modem芯片和 WLAN芯片, 与所述 modem芯片相连的 3GPP空中接 口, 以及与所述 WLAN芯片相连的 WLAN空中接口, 其中,
当所述终端作为发送端设备时:
所述 modem芯片,用于获取经过无线链路控制 RLC层处理的 RLC数据包,根据所 述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路,当所述目标无线链路为 3GPP网络的无线链路时, 将所述 RLC数据包传输到所述 3GPP网络接口, 当所述目标 无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并将适配后的数 据包传输给所述 WLAN芯片;
所述 WLAN芯片, 用于将所述适配后的数据包传输到所述 WLAN网络接口; 所述 3GPP网络接口,用于通过所述 3GPP网络将所述 modem芯片传输的 RLC数据 包传输到接收端设备;
所述 WLAN网络接口, 用于通过所述 WLAN网络将所述 WLAN芯片传输的适配后的 数据包传输到接收端设备;
当所述终端作为接收端设备时:
所述 3GPP网络接口,用于通过 3GPP网络接收发送端设备传输的 RLC数据包, 并 将所述 RLC数据包传输给所述 modem芯片;
所述 WLAN网络接口,用于通过 WLAN网络接收发送端设备传输的适配后的数据包, 并将所述数据包传输给所述 WLAN芯片;
所述 WLAN芯片, 用于将所述数据包传输给所述 modem芯片;
所述 modem芯片, 用于接收到所述 3GPP网络接口传输的 RLC数据包后, 将所述 RLC数据包传输到 RLC层进行处理, 接收到所述 WLAN芯片传输的适配后的数据包后, 对所述数据包进行解适配, 并将解适配后的 RLC数据包传输到 RLC层进行处理。
结合第五方面, 在第一种可能的实现方式中, 所述 modem芯片, 具体用于在根据 所述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路时, 获取所述 3GPP网 络的第一网络传输参数, 以及所述 WLAN网络的第二网络传输参数, 比较所述第一网 络传输参数和所述第二网络传输参数,根据比较结果, 当所述第一网络传输参数优于 所述第二网络传输参数时, 将所述 3GPP网络的无线链路确定为目标无线链路, 当所 述第二网络传输参数优于所述第一网络传输参数时, 将所述 WLAN网络的无线链路确 定为目标无线链路。
结合第五方面, 或第一种可能的实现方式, 在第二种可能的实现方式中, 所述 modem芯片, 具体用于在对 RLC数据包进行适配时, 获取所述 RLC数据包的私有协议 类型信息, 以及所述接收端设备的地址, 为所述 RLC数据包添加包头, 所述包头中包 含所述私有协议类型信息, 以及作为目的地址的所述接收端设备的地址; 在对适配后 的数据包进行解适配时, 读取所述数据包的包头, 获得所述数据包的协议类型信息和 目的地址, 当获得的所述协议类型信息与保存的私有协议类型信息一致, 且所述目的 地址与所述接收端设备的地址一致时, 删除所述数据包的包头得到 RLC数据包。
第六方面, 提供一种基站, 所述基站为支持 3GPP网络和 WLAN网络的基站, 所述 基站包括:基带板和 WLAN板, 与所述基带板连接的 3GPP空中接口, 以及与所述 WLAN 板连接的 WLAN空中接口, 其中,
当所述基站作为发送端设备时:
所述基带板, 用于获取经过无线链路控制 RLC层处理的 RLC数据包, 根据所述 3GPP 网络和 WLAN 网络的网络传输参数确定目标无线链路, 当所述目标无线链路为 3GPP网络的无线链路时, 将所述 RLC数据包传输到所述 3GPP网络接口, 当所述目标 无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并将适配后的数 据包传输给所述 WLAN板;
所述 WLAN板, 用于将所述适配后的数据包传输到所述 WLAN网络接口; 所述 3GPP网络接口,用于通过所述 3GPP网络将所述基带板传输的 RLC数据包传 输到接收端设备;
所述 WLAN网络接口, 用于通过所述 WLAN网络将所述 WLAN板传输的适配后的数 据包传输到接收端设备;
当所述基站作为接收端设备时:
所述 3GPP网络接口,用于通过 3GPP网络接收发送端设备传输的 RLC数据包, 并 将所述 RLC数据包传输给所述基带板;
所述 WLAN网络接口,用于通过 WLAN网络接收发送端设备传输的适配后的数据包, 并将所述数据包传输给所述 WLAN板;
所述 WLAN板, 用于将所述数据包传输给所述基带板;
所述基带板, 用于接收到所述 3GPP网络接口传输的 RLC数据包后, 将所述 RLC 数据包传输到 RLC层进行处理, 接收到所述 WLAN板传输的适配后的数据包后, 对所 述数据包进行解适配, 并将解适配后的 RLC数据包传输到 RLC层进行处理。
结合第六方面, 在第一种可能的实现方式中, 所述基带板, 具体用于在根据所述
3GPP网络和 WLAN网络的网络传输参数确定目标无线链路时, 获取所述 3GPP网络的 第一网络传输参数, 以及所述 WLAN网络的第二网络传输参数, 比较所述第一网络传 输参数和所述第二网络传输参数,根据比较结果, 当所述第一网络传输参数优于所述 第二网络传输参数时, 将所述 3GPP网络的无线链路确定为目标无线链路, 当所述第 二网络传输参数优于所述第一网络传输参数时, 将所述 WLAN网络的无线链路确定为 目标无线链路。
结合第六方面, 或第一种可能的实现方式, 在第二种可能的实现方式中, 所述基 带板, 具体用于在对 RLC数据包进行适配时, 获取所述 RLC数据包的私有协议类型信 息, 以及所述接收端设备的地址, 为所述 RLC数据包添加包头, 所述包头中包含所述 私有协议类型信息, 以及作为目的地址的所述接收端设备的地址; 在对适配后的数据 包进行解适配时, 读取所述数据包的包头, 获得所述数据包的协议类型信息和目的地 址, 当获得的所述协议类型信息与保存的私有协议类型信息一致, 且所述目的地址与 所述接收端设备的地址一致时, 删除所述数据包的包头得到 RLC数据包。
本发明实施例中发送端设备获取经过 RLC层处理的 RLC数据包, 根据 3GPP网络 和 WLAN网络的网络传输参数确定目标无线链路,将 RLC数据包分流到目标无线链路, 以通过所述目标无线链路对应的空中接口将 RLC数据包或对 RLC数据包进行适配后的 数据包传输到接收端设备;接收端设备通过目标无线链路对应的空中接口接收到发送 端设备传输的 RLC数据包或对该 RLC数据包进行适配后的数据包后,根据该空中接口 的类型,将 RLC数据包或解适配该适配后的数据包后的 RLC数据包传输到 RLC层进行 处理。在 WLAN网络与 3GPP网络互联互通的通信网络中,本发明实施例通过网络传输 参数确定目标无线链路, 由于网络传输参数种类较多, 因此分流方式灵活, 可以将 RLC层处理后的 RLC数据包通过质量较好的无线链路进行传输, 从而可以提高数据的 传输效率, 并且可以有效利用网络的传输资源。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现 有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅 是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前 提下, 还可以根据这些附图获得其他的附图。
图 1为本发明数据传输方法的一个实施例流程图;
图 2为本发明数据传输方法的另一个实施例流程图:
图 3为本发明数据传输方法的另一个实施例流程图; 图 4为本发明数据传输方法的另一个实施例流程图;
图 5为应用本发明数据传输方法实施例的一个通信系统的架构示意图; 图 6为本发明数据传输装置的一个实施例框图;
图 7为本发明数据传输装置的另一个实施例框图;
图 8为本发明终端的实施例框图;
图 9为本发明基站的实施例框图。 具体实施方式
本发明如下实施例提供了数据传输方法、 装置、 终端及基站。
为了使本技术领域的人员更好地理解本发明实施例中的技术方案,并使本发明实 施例的上述目的、特征和优点能够更加明显易懂, 下面结合附图对本发明实施例中技 术方案作进一步详细的说明。
本发明实施例中描述的发送端设备和接收端设备均为能够支持 3GPP网络和 WLAN 网络的设备。 其中, 上述发送端设备可以为终端, 对应的接收端设备为基站; 或者发 送端设备可以为基站, 对应的接收端设备为终端。
参见图 1, 为本发明数据传输方法的一个实施例流程图, 该实施例从发送端设备 侧描述了数据传输过程:
步骤 101 : 发送端设备获取经过 RLC层处理的 RLC数据包。
本实施例中, 发送端设备获取的数据包为经过无线链路控制 (Radio Link Control , RLC)层处理后的 RLC数据包。
步骤 102: 根据 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路。 可选的, 接收端设备获取所述 3GPP 网络的第一网络传输参数, 以及所述 WLAN 网络的第二网络传输参数, 比较所述第一网络传输参数和所述第二网络传输参数,根 据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时, 将所述 3GPP 网络的无线链路确定为目标无线链路,当所述第二网络传输参数优于所述第一网络传 输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
其中,网络传输参数包括至少一种下述参数:无线链路质量参数、网络负荷参数、 网络最大吞吐率参数。例如, 如果网络传输参数为无线链路质量参数, 则将无线链路 质量较好的网络的无线链路确定为目标无线链路; 如果网络传输参数为网络负荷参 数, 则将网络负荷较小的网络的无线链路确定为目标无线链路; 如果网络传输参数为 网络最大吞吐率参数,则将网络最大吞吐率较大的网络的无线链路确定为目标无线链 路。另外,当需要考虑的网络传输参数有多个时,可以为每个网络传输参数设置权重, 根据不同网络传输参数的权重获取每个网络的所有网络传输参数的综合值,将综合值 较高的网络的无线链路确定为目标无线链路。
需要说明的是, 上述实施可以在每获取到一个 RLC数据包后, 就执行根据 3GPP 网络和 WLAN网络的网络传输参数确定目标无线链路; 或者, 也可以仅在获取到首个 RLC数据包后执行根据 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路, 后 续所有接收到的 RLC数据包都按照确定的目标无线链路进行分流; 或者, 也可以预先 设置时间周期,并按照该时间周期执行根据 3GPP网络和 WLAN网络的网络传输参数确 定目标无线链路, 上述时间周期的具体长度可以在实际应用中灵活设置,对此本发明 实施例不进行限制。
步骤 103 : 将所述 RLC数据包分流到确定的目标无线链路, 以通过所述目标无线 链路对应的空中接口将所述 RLC数据包或对所述 RLC数据包进行适配后的数据包传输 到接收端设备。
其中, 当所述目标无线链路为 3GPP网络的无线链路时, 将所述 RLC数据包发送 到所述 3GPP网络的无线链路, 由 3GPP空中接口通过 3GPP网络将 RLC数据包传输到 接收端设备; 当所述目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进 行适配, 并将适配后的数据包传输到所述 WLAN网络的无线链路, 由 WLAN空中接口通 过 WLAN网络将适配后的数据包传输到接收端设备。
由上述实施例可见,该实施例应用在 WLAN网络与 3GPP网络互联互通的通信网络 中, 通过网络传输参数确定目标无线链路, 由于网络传输参数种类较多, 因此分流方 式灵活,可以将 RLC层处理后的 RLC数据包通过质量较好的无线链路进行传输, 从而 可以提高数据的传输效率, 并且可以有效利用网络的传输资源。 参见图 2, 为本发明数据传输方法的另一个实施例流程图, 该实施例从发送端设 备侧描述了数据传输过程:
步骤 201 : 发送端设备获取经过 RLC层处理的 RLC数据包。
本实施例中, 发送端设备获取到的需要通过不同网络进行分流的数据包,可以为 顺序经 APP层、 TCP/UDP层、 IP层、 PDCP层和 RLC层处理后的 RLC数据包。
步骤 202 : 获取 3GPP网络的第一网络传输参数, 以及 WLAN网络的第二网络传输 参数。
本实施例中, 网络传输参数可以包括至少一种下述参数: 无线链路质量参数、 网 络负荷参数、 网络最大吞吐率参数。 其中, 当发送端设备为终端时, 网络传输参数可 以包括由终端测量得到的无线链路质量参数, 以及预先获知的网络最大吞吐率参数; 当发送端设备为基站时, 网络传输参数可以包括由终端上报的无线链路质量参数, 预 先获知的网络最大吞吐率参数, 以及由网络上报的网络负荷参数。
其中,发送端设备获取到的第一网络传输参数和第二网络传输参数包含相同类型 的参数, 以便可以对第一网络传输参数和第二网络传输参数进行比较。
步骤 203 : 比较第一网络传输参数是否优于第二网络传输参数, 若是, 则执行步 骤 204; 否则, 执行步骤 206。
本发明实施例中,在比较第一网络传输参数是否优于第二网络传输参数时, 如果 网络传输参数为无线链路质量参数,则将无线链路质量较好的网络的无线链路确定为 目标无线链路; 如果网络传输参数为网络负荷参数, 则将网络负荷较小的网络的无线 链路确定为目标无线链路; 如果网络传输参数为网络最大吞吐率参数, 则将网络最大 吞吐率较大的网络的无线链路确定为目标无线链路。另外, 当需要考虑的网络传输参 数有多个时,可以为每个网络传输参数设置权重,根据不同网络传输参数的权重获取 每个网络的所有网络传输参数的综合值,将综合值较高的网络的无线链路确定为目标 无线链路。
步骤 204: 确定 3GPP网络的无线链路为目标无线链路, 将所述 RLC数据包发送 到所述 3GPP网络的无线链路。
当第一网络传输参数优于第二网络传输参数时, 确定 3GPP网络的无线链路为目 标无线链路, 将 RLC数据包发送到 3GPP网络的无线链路。
步骤 205 : 与 3GPP网络的无线链路对应的 3GPP空中接口通过 3GPP网络将所述 RLC数据包传输到接收端设备, 结束当前流程。
步骤 206 : 确定 WLAN网络的无线链路为目标无线链路, 对所述 RLC数据包进行 适配。
当第二网络传输参数优于第一网络传输参数时, 确定 WLAN网络的无线链路为目 标无线链路, 此时需要将 RLC数据包适配成可以通过 WLAN网络传输的数据包。
在进行适配时,接收端设备可以获取所述 RLC数据包的私有协议类型信息, 以及 所述接收端设备的地址, 为所述 RLC数据包添加包头生成所述适配后的数据包,所述 包头中包含所述私有协议类型信息, 以及作为目的地址的所述接收端设备的地址。
本实施例中, 可以对 RLC数据包进行 IP适配, 即对 RLC数据包封装 IP头, 假设 发送端设备与接收端设备预先约定的私有协议类型信息为 " 0xff ", 则发送端设备将 "Oxff"写入 IP头, 并且设置 IP头的目的 IP地址为接收端设备的 IP地址, 其中, 当接收端设备为终端时, 则目的 IP地址为终端的 WLAN网卡的 IP地址, 当接收端设 备为基站时, 则目的 IP地址为基站的基带板的 IP地址。
本实施例中,也可以对 RLC数据包进行介质访问控制层(Medium Access Control , MAC) 适配, 即对 RLC数据包封装 MAC头, 假设发送端设备与接收端设备预先约定的 私有协议类型信息为 "Oxffff", 则发送端设备将 "Oxffff"写入 MAC头, 并且设置 MAC头的目的 MAC地址为接收端设备的 MAC地址, 其中, 当接收端设备为终端时, 则 目的 MAC地址为终端的 WLAN网卡的 MAC地址, 当接收端设备为基站时, 则目的 MAC 地址为基站的基带板的 MAC地址。
步骤 207: 将适配后的数据包传输到 WLAN网络的无线链路。
步骤 208: 与 WLAN网络的无线链路对应的 WLAN空中接口通过 WLAN网络将所述 数据包传输到接收端设备, 结束当前流程。
需要说明的是, 上述实施可以在每获取到一个 RLC数据包后, 就执行根据 3GPP 网络和 WLAN网络的网络传输参数确定目标无线链路; 或者, 也可以仅在获取到首个 RLC数据包后执行根据 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路, 后 续所有接收到的 RLC数据包都按照确定的目标无线链路进行分流; 或者, 也可以预先 设置时间周期,并按照该时间周期执行根据 3GPP网络和 WLAN网络的网络传输参数确 定目标无线链路, 上述时间周期的具体长度可以在实际应用中灵活设置,对此本发明 实施例不进行限制。
由上述实施例可见,该实施例应用在 WLAN网络与 3GPP网络互联互通的通信网络 中, 通过网络传输参数确定目标无线链路, 由于网络传输参数种类较多, 因此分流方 式灵活,可以将 RLC层处理后的 RLC数据包通过质量较好的无线链路进行传输, 从而 可以提高数据的传输效率, 并且可以有效利用网络的传输资源。 与前述图 1和图 2示出的从发送端设备侧描述的数据传输方法的实施例相对应, 下述图 3和图 4实施例示出了接收端设备对所述发送端设备传输的数据进行传输。
参见图 3, 为本发明数据传输方法的另一个实施例流程图, 该实施例从接收端设 备侧描述了数据传输过程:
步骤 301 : 接收端设备通过目标无线链路对应的空中接口接收发送端设备传输的 RLC数据包或对所述 RLC数据包进行适配后的数据包。
其中, 当发送端设备的目标无线链路为 3GPP网络的无线链路时, 接收端设备通 过 3GPP空中接口接收发送端设备的 3GPP空中接口传输的 RLC数据包;当发送端设备 的目标无线链路为 WLAN网络的无线链路时,接收端设备通过 WLAN空中接口接收发送 端设备的 WLAN空中接口传输的对 RLC数据包进行适配后的数据包。
步骤 302 : 根据目标无线链路对应的空中接口的类型, 将所述 RLC数据包或解适 配所述适配后的数据包后的 RLC数据包传输到 RLC层进行处理。
其中, 当目标无线链路对应的空中接口为 3GPP空中接口时, 接收端设备将接收 到的 RLC数据包传输到 RLC层进行处理; 当目标无线链路对应的空中接口为 WLAN空 中接口时,接收端设备对接收到的适配后的数据包进行解适配得到 RLC数据包, 并将 解适配后的 RLC数据包传输到 RLC层进行处理。
由上述实施例可见,该实施例应用在 WLAN网络与 3GPP网络互联互通的通信网络 中,由于发送端设备通过网络传输参数确定目标无线链路,且网络传输参数种类较多, 因此发送端设备的分流方式灵活,可以将 RLC层处理后的 RLC数据包通过质量较好的 无线链路进行传输, 从而可以有效利用网络的传输资源,提高接收端设备接收数据的 质量。
参见图 4, 为本发明数据传输方法的另一个实施例流程图, 该实施例从接收端设 备侧描述了数据传输过程:
步骤 401 : 接收端设备接收到 RLC数据包或对所述 RLC数据包进行适配后的数据 包。
其中, 当发送端设备的目标无线链路为 3GPP网络的无线链路时, 接收端设备通 过 3GPP空中接口接收发送端设备的 3GPP空中接口传输的 RLC数据包;当发送端设备 的目标无线链路为 WLAN网络的无线链路时,接收端设备通过 WLAN空中接口接收发送 端设备的 WLAN空中接口传输的对所述 RLC数据包进行适配后的数据包。
步骤 402 : 确定接收数据包的空中接口的类型, 如果为 3GPP空中接口, 则执行 步骤 403 ; 如果为 WLAN空中接口, 则执行步骤 404。
步骤 403 : 将接收到的 RLC数据包传输到 RLC层进行处理, 结束当前流程。 步骤 404: 对接收到的适配后的数据包进行解适配得到 RLC数据包。
当接收数据包的空中接口为 WLAN空中接口时, 则该数据包为对 RLC数据包经过 适配后可以通过 WLAN网络传输的数据包, 因此需要对该数据包进行解适配, 以便接 收端设备可以对其进行处理。
在进行解适配时,接收端设备可以读取所述数据包的包头, 获得所述数据包的协 议类型信息和目的地址; 当获得的所述协议类型信息与保存的私有协议类型信息一 致, 且所述目的地址与所述接收端设备的地址一致时, 删除所述数据包的包头得到 RLC数据包。
参照前述图 2所示的方法实施例的步骤 206的描述,当发送端设备对 RLC数据包 进行了 IP适配时, 则接收端设备接收到数据包后, 读取该数据包的 IP头, 获得其中 的协议类型信息, 以及目的 IP 地址, 如果接收端设备保存的私有协议类型信息为 "0xff", 且该接收端设备的 IP地址与目的 IP地址一致, 则接收端设备解封装 IP 头。
同样参照前述图 2所示的方法实施例的步骤 206 的描述, 当发送端设备对 RLC 数据包进行了 MAC适配时, 则接收端设备接收到数据包后, 读取该数据包的 MAC头, 获得其中的协议类型信息, 以及目的 IP地址, 如果接收端设备保存的私有协议类型 信息为 "Oxffff", 且该接收端设备的 MAC地址与目的 MAC地址一致, 则接收端设备 解封装 MAC头。
步骤 405: 将解适配后的数据包传输到 RLC层进行处理, 结束当前流程。
由上述实施例可见,该实施例应用在 WLAN网络与 3GPP网络互联互通的通信网络 中,由于发送端设备通过网络传输参数确定目标无线链路,且网络传输参数种类较多, 因此发送端设备的分流方式灵活,可以将 RLC层处理后的 RLC数据包通过质量较好的 网络进行传输,从而可以有效利用网络的传输资源,提高接收端设备接收数据的质量。 参见图 5, 为应用本发明数据传输方法实施例的一个通信系统的架构示意图: 图 5中的通信系统以长期演进 (Long Term Evolution, LTE) 通信系统为例, 该 系统中的终端为支持 3GPP网络和 WLAN网络的双模终端,基站为支持 3GPP网络和 WLAN 网络的双制式基站。 需要说明的是, 本发明实施例不局限于应用在 LTE网络中, 还可 以应用在通用移动通信系统 (Universal Mobile Telecommunications System, UMTS) 网络, 或者全球微波互联接入 (Worldwide Interoperability for Microwave Access, WiMax) 网络, 对此本发明实施例不进行限制。
图 5中, 双模终端主要包括分流锚点模块、适配模块、用于与双制式基站通信的 Uu接口 (即 3GPP空中接口) 禾 P 802. 11接口 (即 WLAN空中接口); 双制式主要包括 分流锚点模块、 适配模块、 用于与双模终端通信的 Uu接口 (即 3GPP空中接口) 和 802. 11接口 (即 WLAN空中接口)。
下面结合图 5, 以发送端设备为双模终端, 接收端设备为双制式基站为例, 描述 本发明实施例的数据传输过程: 在作为发送端设备的双模终端侧, 分流锚点模块接收到经过 RLC层处理的 RLC 协议数据单元 (Protocol Data Units , PDUs ) , 分流锚点模块通过比较 3GPP网络的 网络传输参数和 WLAN网络(也可称为 802. 11网络)的网络传输参数确定目标无线链 路。 如果目标无线链路为 3GPP 网络的无线链路, 则分流锚点模块直接将 RLC PDUs 传输到 Uu接口, 由 Uu接口通过 3GPP网络传输到双制式基站的 Uu接口; 如果目标无 线链路为 WLAN网络的无线链路, 则分流锚点模块将 RLC PDUs传输到适配模块, 由适 配模块将 RLC PDUs适配成可以由 WLAN网络传输的 PDUs , 然后适配模块将适配后的 PDUs传输到 802. 11接口,由 802. 11接口通过 802. 11网络传输到双制式基站的 802. 11 接口。
在作为接收端设备双制式基站侧, 如果双制式基站的 Uu接口接收到 RLC PDUs , 则将该 RLC PDUs传输到分流锚点模块, 由分流锚点模块直接将该 RLC PDUs通过 S1 接口传输到核心网; 如果双制式基站的 802. 11接口接收到 PDUs , 则将该 PDUs传输 到适配模块, 由适配模块将该 PDUs解适配为可以在 3GPP网络中传输的 RLC PDUs , 然后适配模块将解适配后的 RLC PDUs传输给分流锚点模块,由分流锚点模块将该 RLC PDUs通过 S1接口传输到核心网。
需要说明的是, 上述传输过程中涉及的具体操作过程可以参见前述图 1 至图 4 所示的实施例, 在此不再赘述。 该实施例通过网络传输参数确定目标无线链路, 由于 网络传输参数种类较多, 因此分流方式灵活,可以将 RLC层处理后的 RLC数据包通过 质量较好的无线链路进行传输, 从而可以提高数据的传输质量, 并且可以有效利用网 络的传输资源。 另外, 本发明实施例在传输数据时, 由于可以实时感知网络的无线链 路状态, 因此不会造成某个网络的负载过高; 并且在一个网络的无线链路断开时, 可 以通过另一个网络的无线链路传输数据, 因此不会产生业务中断。 与本发明数据传输方法的实施例相对应,本发明还提供了数据传输装置、终端及 基站的实施例。
参见图 6, 为本发明数据传输装置的一个实施例框图, 该实施例中的装置可以设 置在支持 3GPP网络和 WLAN网络的发射端设备上,该发射端设备可以为终端或者基站。
该数据传输装置包括: 获取单元 610、 确定单元 620和分流单元 630。
其中, 获取单元 610, 用于获取经过无线链路控制 RLC层处理的 RLC数据包; 确定单元 620, 用于根据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无 线链路; 分流单元 630, 用于将所述获取单元 610获取的所述 RLC数据包分流到所述确定 单元 620确定的目标无线链路, 以通过所述目标无线链路对应的空中接口将所述 RLC 数据包或对所述 RLC数据包进行适配后的数据包传输到接收端设备。
可选的, 所述确定单元 620可以包括 (图 6中未示出):
参数获取子单元, 用于获取所述 3GPP网络的第一网络传输参数, 以及所述 WLAN 网络的第二网络传输参数;
参数比较子单元,用于比较所述参数获取子单元获取的所述第一网络传输参数和 所述第二网络传输参数;
目标确定子单元,用于根据所述参数比较子单元的比较结果, 当所述第一网络传 输参数优于所述第二网络传输参数时, 将所述 3GPP网络的无线链路确定为目标无线 链路, 当所述第二网络传输参数优于所述第一网络传输参数时, 将所述 WLAN网络的 无线链路确定为目标无线链路。
可选的, 所述分流单元 630可以包括 (图 6中未示出):
3GPP发送子单元, 用于当所述确定单元确定的目标无线链路为 3GPP网络的无线 链路时, 将所述 RLC数据包发送到所述 3GPP网络的无线链路;
WLAN适配子单元, 用于当所述确定单元确定的目标无线链路为 WLAN网络的无线 链路时, 对所述 RLC数据包进行适配;
WLAN发送子单元,用于将所述 WLAN适配子单元适配后的数据包传输到所述 WLAN 网络的无线链路。
其中, 所述 WLAN适配子单元, 可以具体用于获取所述 RLC数据包的私有协议类 型信息, 以及所述接收端设备的地址, 为所述 RLC数据包添加包头生成所述适配后的 数据包,所述包头中包含所述私有协议类型信息, 以及作为目的地址的所述接收端设 备的地址。 参见图 7, 为本发明数据传输装置的另一个实施例框图, 该实施例中的装置可以 设置在支持 3GPP网络和 WLAN网络的接收端设备上,该接收端设备可以为终端或者基 站。
该数据传输装置包括: 接收单元 710和传输单元 720。
其中, 接收单元 710, 用于通过目标无线链路对应的空中接口接收发送端设备传 输的 RLC数据包或对所述 RLC数据包进行适配后的数据包;
传输单元 720, 用于根据所述目标无线链路对应的空中接口的类型, 将所述接收 单元 710接收到的 RLC数据包或解适配所述配后的数据包后的 RLC数据包传输到 RLC 层进行处理。
可选的, 所述传输单元 720可以包括 (图 7中未示出):
3GPP传输子单元,用于当所述目标无线链路对应的空中接口为 3GPP空中接口时, 将所述接收单元接收到的适配后的数据包进行解适配得到 RLC数据包;
WLAN解适配子单元, 用于当所述目标无线链路对应的空中接口为 WLAN空中接口 时, 对所述接收单元接收到的 RLC数据包进行解适配;
WLAN传输子单元, 用于将所述 WLAN解适配子单元解适配后的 RLC数据包传输到 RLC层进行处理。
其中,所述 WLAN解适配子单元,可以具体用于读取所述适配后的数据包的包头, 获得所述数据包的协议类型信息和目的地址,当获得的所述协议类型信息与保存的私 有协议类型信息一致, 且所述目的地址与所述接收端设备的地址一致时,删除所述数 据包的包头得到 RLC数据包。 参见图 8, 为本发明终端的实施例框图, 该终端为支持 3GPP网络和 WLAN网络的 终端。
该终端包括: 调制解调 modem芯片 810、 WLAN芯片 820, 所述 modem芯片 810相 连的 3GPP空中接口 830, 以及与所述 WLAN芯片 820相连的 WLAN空中接口 840。
其中, 当所述终端作为发送端设备时:
所述 modem芯片 810, 用于获取经过无线链路控制 RLC层处理的 RLC数据包, 根 据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路,当所述目标无线链 路为 3GPP网络的无线链路时, 将所述 RLC数据包传输到所述 3GPP网络接口 830, 当 所述目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并将适 配后的数据包传输给所述 WLAN芯片 820 ;
所述 WLAN芯片 820,用于将所述适配后的数据包传输到所述 WLAN网络接口 840 ; 所述 3GPP网络接口 830, 用于通过所述 3GPP网络将所述 modem芯片 810传输的 RLC数据包传输到接收端设备;
所述 WLAN网络接口 840, 用于通过所述 WLAN网络将所述 WLAN芯片 820传输的 数据包传输到接收端设备;
其中, 当所述终端作为接收端设备时:
所述 3GPP网络接口 830,用于通过 3GPP网络接收发送端设备传输的 RLC数据包, 并将所述 RLC数据包传输给所述 modem芯片 810 ;
所述 WLAN网络接口 840, 用于通过 WLAN网络接收发送端设备传输的适配后的数 据包, 并将所述数据包传输给所述 WLAN芯片 820 ;
所述 WLAN芯片 820, 用于将所述数据包传输给所述 modem芯片 810 ;
所述 modem芯片 810, 用于接收到所述 3GPP网络接口 830传输的 RLC数据包后, 将所述 RLC数据包传输到 RLC层进行处理, 接收到所述 WLAN芯片 820传输的适配后 的数据包后,对所述数据包进行解适配, 并将解适配后的 RLC数据包传输到 RLC层进 行处理。
可选的, 所述 modem芯片 810, 可以具体用于在根据所述 3GPP网络和 WLAN网络 的网络传输参数确定目标无线链路时, 获取所述 3GPP网络的第一网络传输参数, 以 及所述 WLAN网络的第二网络传输参数, 比较所述第一网络传输参数和所述第二网络 传输参数, 根据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时, 将所述 3GPP网络的无线链路确定为目标无线链路, 当所述第二网络传输参数优于所 述第一网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
可选的, 所述 modem芯片 810, 可以具体用于在对 RLC数据包进行适配时, 获取 所述 RLC数据包的私有协议类型信息, 以及所述接收端设备的地址, 为所述 RLC数据 包添加包头,所述包头中包含所述私有协议类型信息, 以及作为目的地址的所述接收 端设备的地址; 在对适配后的数据包进行解适配时, 读取所述数据包的包头, 获得所 述数据包的协议类型信息和目的地址,当获得的所述协议类型信息与保存的私有协议 类型信息一致, 且所述目的地址与所述接收端设备的地址一致时,删除所述数据包的 包头得到 RLC数据包。
结合前述图 5示出的实施例,其中双模终端的分流锚点模块的功能和适配模块的 功能可以集成在本实施例中的 modem芯片上。 参见图 9, 为本发明基站的实施例框图, 该基站为支持 3GPP网络和 WLAN网络的 基站。
该基站包括: 基带板 910、 WLAN板 920, 与所述基带板 910连接的 3GPP空中接 口 930, 以及与所述 WLAN板 920连接的 WLAN空中接口 940。
其中, 当所述基站作为发送端设备时:
所述基带板 910, 用于获取经过无线链路控制 RLC层处理的 RLC数据包, 根据所 述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路,当所述目标无线链路为 3GPP网络的无线链路时, 将所述 RLC数据包传输到所述 3GPP网络接口 930, 当所述 目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并将适配后 的数据包传输给所述 WLAN板 920 ;
所述 WLAN板 920, 用于将所述适配后的数据包传输到所述 WLAN网络接口 940 ; 所述 3GPP网络接口 930, 用于通过所述 3GPP网络将所述基带板传输的 RLC数据 包传输到接收端设备;
所述 WLAN网络接口 940, 用于通过所述 WLAN网络将所述 WLAN板 920传输的适 配后的数据包传输到接收端设备;
其中, 当所述基站作为接收端设备时:
所述 3GPP网络接口 930,用于通过 3GPP网络接收发送端设备传输的 RLC数据包, 并将所述 RLC数据包传输给所述基带板 910 ;
所述 WLAN网络接口 940, 用于通过 WLAN网络接收发送端设备传输的适配后的数 据包, 并将所述数据包传输给所述 WLAN板 920 ;
所述 WLAN板 920, 用于将所述数据包传输给所述基带板 910 ;
所述基带板 910, 用于接收到所述 3GPP网络接口传输的 RLC数据包后, 将所述
RLC数据包传输到 RLC层进行处理, 接收到所述 WLAN板 920传输的适配后的数据包 后, 对所述数据包进行解适配, 并将解适配后的 RLC数据包传输到 RLC层进行处理。
可选的, 所述基带板 910, 可以具体用于在根据所述 3GPP网络和 WLAN网络的网 络传输参数确定目标无线链路时, 获取所述 3GPP网络的第一网络传输参数, 以及所 述 WLAN网络的第二网络传输参数, 比较所述第一网络传输参数和所述第二网络传输 参数, 根据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时, 将所 述 3GPP网络的无线链路确定为目标无线链路, 当所述第二网络传输参数优于所述第 一网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
可选的, 所述基带板 910, 可以具体用于在对 RLC数据包进行适配时, 获取所述 RLC数据包的私有协议类型信息, 以及所述接收端设备的地址, 为所述 RLC数据包添 加包头,所述包头中包含所述私有协议类型信息, 以及作为目的地址的所述接收端设 备的地址; 在对适配后的数据包进行解适配时, 读取所述数据包的包头, 获得所述数 据包的协议类型信息和目的地址,当获得的所述协议类型信息与保存的私有协议类型 信息一致, 且所述目的地址与所述接收端设备的地址一致时,删除所述数据包的包头 得到 RLC数据包。
结合前述图 5示出的实施例,其中双制式基站的分流锚点模块的功能和适配模块 的功能可以集成在本实施例中的基带板上。 由上述实施例可见,本发明实施例中发送端设备获取经过 RLC层处理的 RLC数据 包,根据 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路,将 RLC数据包分 流到目标无线链路, 以通过所述目标无线链路对应的空中接口将 RLC数据包或对 RLC 数据包进行适配后的数据包传输到接收端设备;接收端设备通过目标无线链路对应的 空中接口接收到发送端设备传输的 RLC数据包或对该 RLC数据包进行适配后的数据包 后,根据该空中接口的类型,将 RLC数据包或解适配该适配后的数据包后的 RLC数据 包传输到 RLC层进行处理。在 WLAN网络与 3GPP网络互联互通的通信网络中,本发明 实施例通过网络传输参数确定目标无线链路, 由于网络传输参数种类较多, 因此分流 方式灵活,可以将 RLC层处理后的 RLC数据包通过质量较好的无线链路进行传输, 从 而可以提高数据的传输效率, 并且可以有效利用网络的传输资源。
本领域的技术人员可以清楚地了解到本发明实施例中的技术可借助软件加必需 的通用硬件平台的方式来实现。基于这样的理解,本发明实施例中的技术方案本质上 或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产 品可以存储在存储介质中, 如 R0M/RAM、 磁碟、 光盘等, 包括若干指令用以使得一台 计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例 或者实施例的某些部分所述的方法。
本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部 分互相参见即可, 每个实施例重点说明的都是与其他实施例的不同之处。尤其, 对于 系统实施例而言, 由于其基本相似于方法实施例, 所以描述的比较简单, 相关之处参 见方法实施例的部分说明即可。
以上所述的本发明实施方式, 并不构成对本发明保护范围的限定。任何在本发明 的范围之内所作的修改、 等同替换和改进等, 均应包含在本发明的保护范围之内。
_L

Claims

权 利 要 求
1、 一种数据传输方法, 其特征在于, 所述方法应用在支持第三代合作伙伴 项目 3GPP网络和无线局域网 WLAN网络的发射端设备上, 所述方法包括:
所述发送端设备获取经过无线链路控制 RLC层处理的 RLC数据包; 根据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路; 将所述 RLC数据包分流到所述目标无线链路,以通过所述目标无线链路对应 的空中接口将所述 RLC数据包或对所述 RLC数据包进行适配后的数据包传输到接 收端设备。
2、 根据权利要求 1所述的方法, 其特征在于, 所述根据所述 3GPP 网络和
WLAN网络的网络传输参数确定目标无线链路, 包括:
获取所述 3GPP网络的第一网络传输参数,以及所述 WLAN网络的第二网络传 输参数;
比较所述第一网络传输参数和所述第二网络传输参数;
根据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时, 将 所述 3GPP网络的无线链路确定为目标无线链路, 当所述第二网络传输参数优于 所述第一网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述网络传输参数包括 至少一种下述参数: 无线链路质量参数、 网络负荷参数、 网络最大吞吐率参数。
4、根据权利要求 1至 3任意一项所述的方法,其特征在于,所述将所述 RLC 数据包分流到所述目标无线链路, 包括:
当所述目标无线链路为 3GPP网络的无线链路时, 将所述 RLC数据包发送到 所述 3GPP网络的无线链路;
当所述目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适 配, 并将适配后的数据包传输到所述 WLAN网络的无线链路。
5、根据权利要求 4所述的方法, 其特征在于, 所述对 RLC数据包进行适配, 包括:
获取所述 RLC数据包的私有协议类型信息, 以及所述接收端设备的地址; 为所述 RLC数据包添加包头生成所述适配后的数据包,所述包头中包含所述 私有协议类型信息, 以及作为目的地址的所述接收端设备的地址。
6、一种数据传输方法,其特征在于,所述方法应用在支持 3GPP网络和 WLAN 网络的接收端设备上,用于对如权利要求 1至 5任意一项所述的数据传输方法所 传输的 RLC数据包进行传输, 所述方法包括:
所述接收端设备通过目标无线链路对应的空中接口接收发送端设备传输的 RLC数据包或对所述 RLC数据包进行适配后的数据包;
根据所述空中接口的类型,将所述 RLC数据包或解适配所述适配后的数据包 后的 RLC数据包传输到 RLC层进行处理。
7、 根据权利要求 6所述的方法, 其特征在于, 所述根据空中接口的类型, 将所述 RLC数据包或解适配所述配后的数据包后的 RLC数据包传输到 RLC层进行 处理, 包括:
当所述目标无线链路对应的空中接口为 3GPP空中接口时, 将接收到的 RLC 数据包传输到 RLC层进行处理;
当所述目标无线链路对应的空中接口为 WLAN空中接口时, 对接收到的适配 后的数据包进行解适配得到 RLC数据包,并将解适配所述数据包后的 RLC数据包 传输到 RLC层进行处理。
8、 根据权利要求 7所述的方法, 其特征在于, 所述对接收到的适配后的数 据包进行解适配得到 RLC数据包, 包括:
读取所述适配后的数据包的包头,获得所述数据包的协议类型信息和目的地 址;
当获得的所述协议类型信息与保存的私有协议类型信息一致,且所述目的地 址与所述接收端设备的地址一致时, 删除所述数据包的包头得到 RLC数据包。
9、一种数据传输装置,其特征在于,所述装置设置在支持 3GPP网络和 WLAN 网络的发射端设备上, 所述装置包括:
获取单元, 用于获取经过无线链路控制 RLC层处理的 RLC数据包; 确定单元,用于根据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无 线链路; 分流单元,用于将所述获取单元获取的所述 RLC数据包分流到所述确定单元 确定的目标无线链路,以通过所述目标无线链路对应的空中接口将所述 RLC数据 包或对所述 RLC数据包进行适配后的数据包传输到接收端设备。
10、 根据权利要求 9所述的装置, 其特征在于, 所述确定单元包括: 参数获取子单元, 用于获取所述 3GPP网络的第一网络传输参数, 以及所述 WLAN网络的第二网络传输参数;
参数比较子单元,用于比较所述参数获取子单元获取的所述第一网络传输参 数和所述第二网络传输参数;
目标确定子单元, 用于根据所述参数比较子单元的比较结果, 当所述第一网 络传输参数优于所述第二网络传输参数时, 将所述 3GPP网络的无线链路确定为 目标无线链路, 当所述第二网络传输参数优于所述第一网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
11、 根据权利要求 9或 10所述的装置, 其特征在于, 所述分流单元包括:
3GPP发送子单元, 用于当所述确定单元确定的目标无线链路为 3GPP网络的 无线链路时, 将所述 RLC数据包发送到所述 3GPP网络的无线链路;
WLAN适配子单元, 用于当所述确定单元确定的目标无线链路为 WLAN网络的 无线链路时, 对所述 RLC数据包进行适配;
WLAN发送子单元, 用于将所述 WLAN适配子单元适配后的用于将所述 WLAN 适配子单元适配后的数据包传输到所述 WLAN网络的无线链路。
12、 根据权利要求 11所述的装置, 其特征在于,
所述 WLAN适配子单元,具体用于获取所述 RLC数据包的私有协议类型信息, 以及所述接收端设备的地址,为所述 RLC数据包添加包头生成所述适配后的数据 包, 所述包头中包含所述私有协议类型信息, 以及作为目的地址的所述接收端设 备的地址。
13、一种数据传输装置,其特征在于,所述装置设置在支持 3GPP网络和 WLAN 网络的接收端设备上, 用于对如权利要求 9至 12任意一项所述的数据传输装置 所传输的 RLC数据包进行传输, 所述装置包括:
接收单元, 用于通过目标无线链路对应的空中接口接收发送端设备传输的 RLC数据包或对所述 RLC数据包进行适配后的数据包;
传输单元, 用于根据所述空中接口的类型, 将所述接收单元接收到的 RLC数 据包或解适配所述配后的数据包后的 RLC数据包传输到 RLC层进行处理。
14、 根据权利要求 13所述的装置, 其特征在于, 所述传输单元包括:
3GPP传输子单元, 用于当所述目标无线链路对应的空中接口为 3GPP空中接 口时, 将所述接收单元接收到的 RLC数据包传输到 RLC层进行处理;
WLAN解适配子单元, 用于当所述目标无线链路对应的空中接口为 WLAN空中 接口时, 对所述接收单元接收到的适配后的数据包进行解适配得到 RLC数据包; WLAN传输子单元, 用于将所述 WLAN解适配子单元解适配后的 RLC数据包传 输到 RLC层进行处理。
15、 根据权利要求 14所述的装置, 其特征在于,
所述 WLAN解适配子单元, 具体用于读取所述适配后的数据包的包头, 获得 所述数据包的协议类型信息和目的地址,当获得的所述协议类型信息与保存的私 有协议类型信息一致, 且所述目的地址与所述接收端设备的地址一致时, 删除所 述数据包的包头得到 RLC数据包。
16、一种终端,其特征在于,所述终端为支持 3GPP网络和 WLAN网络的终端, 所述终端包括:调制解调 modem芯片和 WLAN芯片,与所述 modem芯片相连的 3GPP 空中接口, 以及与所述 WLAN芯片相连的 WLAN空中接口, 其中,
当所述终端作为发送端设备时:
所述 modem芯片, 用于获取经过无线链路控制 RLC层处理的 RLC数据包, 根 据所述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路,当所述目标无 线链路为 3GPP网络的无线链路时,将所述 RLC数据包传输到所述 3GPP网络接口, 当所述目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并将适配后的数据包传输给所述 WLAN芯片;
所述 WLAN芯片, 用于将所述适配后的数据包传输到所述 WLAN网络接口; 所述 3GPP网络接口, 用于通过所述 3GPP网络将所述 modem芯片传输的 RLC 数据包传输到接收端设备;
所述 WLAN网络接口, 用于通过所述 WLAN网络将所述 WLAN芯片传输的适配 后的数据包传输到接收端设备; 当所述终端作为接收端设备时:
所述 3GPP网络接口,用于通过 3GPP网络接收发送端设备传输的 RLC数据包, 并将所述 RLC数据包传输给所述 modem芯片;
所述 WLAN网络接口,用于通过 WLAN网络接收发送端设备传输的适配后的数 据包, 并将所述数据包传输给所述 WLAN芯片;
所述 WLAN芯片, 用于将所述数据包传输给所述 modem芯片;
所述 modem芯片, 用于接收到所述 3GPP网络接口传输的 RLC数据包后, 将 所述 RLC数据包传输到 RLC层进行处理, 接收到所述 WLAN芯片传输的适配后的 数据包后, 对所述数据包进行解适配, 并将解适配后的 RLC数据包传输到 RLC层 进行处理。
17、 根据权利要求 16所述的终端, 其特征在于,
所述 modem芯片,具体用于在根据所述 3GPP网络和 WLAN网络的网络传输参 数确定目标无线链路时,获取所述 3GPP网络的第一网络传输参数,以及所述 WLAN 网络的第二网络传输参数, 比较所述第一网络传输参数和所述第二网络传输参 数, 根据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时, 将 所述 3GPP网络的无线链路确定为目标无线链路, 当所述第二网络传输参数优于 所述第一网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
18、 根据权利要求 16或 17所述的终端, 其特征在于,
所述 modem芯片, 具体用于在对 RLC数据包进行适配时, 获取所述 RLC数据 包的私有协议类型信息, 以及所述接收端设备的地址, 为所述 RLC数据包添加包 头, 所述包头中包含所述私有协议类型信息, 以及作为目的地址的所述接收端设 备的地址; 在对适配后的数据包进行解适配时, 读取所述数据包的包头, 获得所 述数据包的协议类型信息和目的地址,当获得的所述协议类型信息与保存的私有 协议类型信息一致, 且所述目的地址与所述接收端设备的地址一致时, 删除所述 数据包的包头得到 RLC数据包。
19、一种基站,其特征在于,所述基站为支持 3GPP网络和 WLAN网络的基站, 所述基站包括: 基带板和 WLAN板, 与所述基带板连接的 3GPP空中接口, 以及与 所述 WLAN板连接的 WLAN空中接口, 其中,
当所述基站作为发送端设备时: 所述基带板, 用于获取经过无线链路控制 RLC层处理的 RLC数据包, 根据所 述 3GPP网络和 WLAN网络的网络传输参数确定目标无线链路,当所述目标无线链 路为 3GPP网络的无线链路时, 将所述 RLC数据包传输到所述 3GPP网络接口, 当 所述目标无线链路为 WLAN网络的无线链路时, 对所述 RLC数据包进行适配, 并 将适配后的数据包传输给所述 WLAN板;
所述 WLAN板, 用于将所述适配后的数据包传输到所述 WLAN网络接口; 所述 3GPP网络接口,用于通过所述 3GPP网络将所述基带板传输的 RLC数据 包传输到接收端设备;
所述 WLAN网络接口, 用于通过所述 WLAN网络将所述 WLAN板传输的适配后 的数据包传输到接收端设备;
当所述基站作为接收端设备时:
所述 3GPP网络接口,用于通过 3GPP网络接收发送端设备传输的 RLC数据包, 并将所述 RLC数据包传输给所述基带板;
所述 WLAN网络接口,用于通过 WLAN网络接收发送端设备传输的适配后的数 据包, 并将所述数据包传输给所述 WLAN板;
所述 WLAN板, 用于将所述数据包传输给所述基带板;
所述基带板, 用于接收到所述 3GPP网络接口传输的 RLC数据包后, 将所述 RLC数据包传输到 RLC层进行处理, 接收到所述 WLAN板传输的适配后的数据包 后, 对所述数据包进行解适配, 并将解适配后的 RLC数据包传输到 RLC层进行处 理。
20、 根据权利要求 19所述的基站, 其特征在于,
所述基带板,具体用于在根据所述 3GPP网络和 WLAN网络的网络传输参数确 定目标无线链路时, 获取所述 3GPP网络的第一网络传输参数, 以及所述 WLAN网 络的第二网络传输参数, 比较所述第一网络传输参数和所述第二网络传输参数, 根据比较结果, 当所述第一网络传输参数优于所述第二网络传输参数时, 将所述 3GPP 网络的无线链路确定为目标无线链路, 当所述第二网络传输参数优于所述 第一网络传输参数时, 将所述 WLAN网络的无线链路确定为目标无线链路。
21、 根据权利要求 19或 20所述的基站, 其特征在于,
所述基带板, 具体用于在对 RLC数据包进行适配时, 获取所述 RLC数据包的 私有协议类型信息, 以及所述接收端设备的地址, 为所述 RLC数据包添加包头, 所述包头中包含所述私有协议类型信息,以及作为目的地址的所述接收端设备的 地址; 在对适配后的数据包进行解适配时, 读取所述数据包的包头, 获得所述数 据包的协议类型信息和目的地址,当获得的所述协议类型信息与保存的私有协议 类型信息一致, 且所述目的地址与所述接收端设备的地址一致时, 删除所述数据 包的包头得到 RLC数据包。
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