WO2013185678A1 - 一种实现融合网络数据传输方法、ue和接入网设备 - Google Patents
一种实现融合网络数据传输方法、ue和接入网设备 Download PDFInfo
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- WO2013185678A1 WO2013185678A1 PCT/CN2013/080003 CN2013080003W WO2013185678A1 WO 2013185678 A1 WO2013185678 A1 WO 2013185678A1 CN 2013080003 W CN2013080003 W CN 2013080003W WO 2013185678 A1 WO2013185678 A1 WO 2013185678A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
Definitions
- the present invention relates to a mobile communication system, and in particular to a method for implementing a converged network data transmission, a UE, and an access network device.
- LTE Long Term Evolution
- LTE Advanced enhanced LTE
- the Wireless Local Area Network As is well known, in addition to the wireless network technology provided by The 3rd Generation Partnership Project (3GPP), the Wireless Local Area Network (WLAN), which is currently widely used, especially ⁇ ⁇ 802
- WLAN Wireless Local Area Network
- the .11 standard WLAN has been widely used in hotspot access coverage in homes, businesses and even the Internet.
- the technical specifications proposed by the Wi-Fi Alliance are the most widely used. Therefore, the WiFi network is often equated with the WLAN network based on the IEEE 802.11 standard.
- the WiFi module refers to the network node.
- the WLAN wireless transceiver and processing module is supported.
- the choice of WLAN network under this architecture is completely determined by the terminal, the network operator loses control of the terminal, and the overall resource ratio can be achieved according to the prior network planning.
- the terminal under the Interworking architecture, to achieve joint transmission of 3GPP and WLAN, the terminal needs to simultaneously open two sets of transceivers, which also has a great impact on the power consumption of the terminal.
- the embodiments of the present invention provide a method for implementing a converged network data transmission, a UE, and an access network device, which implements convergence between the 3GPP and the WLAN network.
- the UE's underlying wireless local area network (WLAN) entity of the user equipment (UE) encapsulates the signaling and/or data sent by the UE's upper layer entity into a WLAN protocol format and sends it to the 3GPP access network over the air interface;
- WLAN wireless local area network
- the UE underlying WLAN entity receives the signaling and/or data sent by the 3GPP access network through the air interface, decapsulates and sends it to the upper layer entity of the UE.
- the method further includes: the upper layer entity of the UE establishes a control plane connection and/or a user plane connection with the 3GPP access network through the UE bottom WLAN entity and the air interface.
- the upper layer entity of the UE includes one or more of the following entities: a radio resource control (RRC) layer entity, a packet data convergence layer protocol (PDCP) layer entity, a radio link control (RLC) layer entity, and a medium. Access Control (MAC) layer entity.
- RRC radio resource control
- PDCP packet data convergence layer protocol
- RLC radio link control
- MAC Medium. Access Control
- the UE further includes a logical link control (LLC) layer entity between the underlying WLAN entity of the UE and the upper layer entity of the UE.
- the method further includes: signaling performed by the LLC layer entity to send the upper layer entity of the UE / or data is encapsulated and sent to the underlying WLAN entity of the UE; The signaling and/or data sent by the WLAN entity is decapsulated and sent to the upper layer entity of the UE.
- LLC logical link control
- the present invention also provides another method for implementing a converged network data transmission, including:
- the access network of the access network device the underlying wireless local area network (WLAN) entity, encapsulates the signaling and/or data sent by the access network layer of the access network device into a WLAN protocol format and sends it to the user equipment over the air interface ( UE ) ;
- WLAN wireless local area network
- the WLAN entity receives the signaling and/or data sent by the UE through the air interface, decapsulates and sends it to the access network layer entity.
- the method further includes: the access network layer entity establishes a control plane connection and/or a user plane connection with the UE through the access network bottom layer WLAN entity and the air interface.
- the access network layer entity includes one or more of the following entities: a radio resource control (RRC) layer entity, a packet data convergence layer protocol (PDCP) layer entity, and a radio link control (RLC) layer. Entity, Media Access Control (MAC) layer entity.
- RRC radio resource control
- PDCP packet data convergence layer protocol
- RLC radio link control
- Entity Media Access Control (MAC) layer entity.
- MAC Media Access Control
- the 3GPP access network device further includes a logical link control (LLC) layer entity between the WLAN entity at the bottom of the access network and the access network layer entity.
- LLC logical link control
- the method further includes: the LLC layer entity is connected
- the signaling and/or data sent by the inbound network entity is encapsulated and sent to the underlying WLAN entity of the access network; the signaling and/or data sent by the WLAN entity of the access network is decapsulated and sent to the access network layer entity.
- the embodiment of the present invention further provides a user equipment (UE) for implementing converged network data transmission, including a UE underlying wireless local area network (WLAN) entity and a UE upper layer entity, where:
- UE user equipment
- WLAN wireless local area network
- the underlying WLAN entity of the UE is configured to encapsulate the signaling and/or data sent by the upper layer entity of the UE into a WLAN protocol format, and send the signaling to the 3GPP access network through the air interface, and receive the signaling sent by the 3GPP access network through the air interface. And the data is decapsulated and sent to the upper layer entity of the UE.
- the upper layer entity of the UE is configured to send signaling and/or data to the bottom WLAN entity of the UE, and receive signaling after decapsulation of the underlying WLAN entity of the UE. / or data.
- the upper layer entity of the UE is further configured to establish a control plane connection and/or a user plane connection with the 3GPP access network through the UE bottom WLAN entity and the air interface.
- the upper layer entity of the UE includes one or more of the following entities: a radio resource control (RRC) layer entity, a packet data convergence layer protocol (PDCP) layer entity, a radio link control (RLC) layer entity, and a medium. Access Control (MAC) layer entity.
- RRC radio resource control
- PDCP packet data convergence layer protocol
- RLC radio link control
- MAC Medium. Access Control
- the UE further includes a logical link control (LLC) layer entity, located between the UE underlying WLAN entity and the UE upper layer entity, configured to encapsulate or decapsulate the message transmitted between the UE underlying WLAN entity and the UE upper layer entity. Order and / or data.
- LLC logical link control
- the embodiment of the present invention further provides a 3GPP access network device for implementing converged network data transmission, including an access network underlying wireless local area network (WLAN) entity and an access network layer entity, where:
- WLAN wireless local area network
- the WLAN entity of the access network is configured to encapsulate the signaling and/or data sent by the access network layer entity into a WLAN protocol format and send it to the user equipment (UE) through the air interface, and to receive the UE through the air interface.
- the sent signaling and/or data is decapsulated and sent to the access network layer entity;
- the access network layer entity is configured to send signaling and/or data to the access network bottom layer WLAN entity, and receive the decapsulated signaling and/or data of the access network bottom layer WLAN entity.
- the access network layer entity is further configured to establish a control plane connection and/or a user plane connection with the UE through the access network bottom layer WLAN entity and the air interface.
- the access network layer entity includes one or more of the following entities: a radio resource control (RRC) layer entity, a packet data convergence layer protocol (PDCP) layer entity, and a radio link control (RLC) layer. Entity, Media Access Control (MAC) layer entity.
- RRC radio resource control
- PDCP packet data convergence layer protocol
- RLC radio link control
- Entity Media Access Control (MAC) layer entity.
- MAC Media Access Control
- the 3GPP access network device further includes a logical link control (LLC) layer entity, located between the underlying WLAN entity of the access network and the access network layer entity, configured to encapsulate or decapsulate the underlying WLAN of the access network. Signaling and/or data transmitted between the entity and the access network layer entity.
- LLC logical link control
- the data gateway it accesses will not change.
- the mobility only involves the access network change (such as from the normal eNB to the eNB supporting WiFi), so the data stream switching will be faster and at the same time Existing Data Forwarding methods can also be avoided Data loss occurs;
- the operator does not need to deploy or maintain a complete WLAN network.
- the solution does not modify the core network and the ground-side interface (that is, the Sl/Iu interface). It only needs to add network nodes that support WLAN access. Therefore, The modification only involves the upgrade or deployment of the access network element node, so the operating expenses will be reduced accordingly;
- the 3GPP network can still control the behavior of the user equipment through the existing process, including network selection and mobility, so that the operator can always guarantee the control of the terminal;
- the UE accesses the network through only one transceiver (WiFi), and does not need two sets of transceivers, so there is no additional power consumption factor;
- the 3GPP band can be saved in the air interface, and the free WLAN band can be replaced, which can save operators a lot of operating expenses.
- Figure 1 is a schematic diagram of a fusion system
- FIG. 2 is a schematic structural diagram of a UE and a 3GPP access network device in a converged system
- FIG. 3 is a schematic diagram of an air interface control plane protocol stack in a converged system
- FIG. 4 is a schematic diagram of an air interface user plane protocol stack in a converged system
- FIG. 5 is a schematic diagram of a protocol stack of a ground interface control plane in a fusion system
- FIG. 6 is a schematic diagram of a ground interface user plane protocol stack in a converged system
- FIG. 7 is a flowchart of a transmission process performed by a UE
- FIG. 8 is a flow chart of a transmission process performed by a 3GPP access network
- Figure 9 is a schematic diagram of an application example 1 system
- 10 is a schematic diagram of an application example 1 air interface control plane protocol stack
- 11 is a schematic diagram of an application example 1 air interface user plane protocol stack
- Figure 12 is a schematic diagram of an application example 2 system
- 13 is a schematic diagram of an application example 2 air interface control plane protocol stack
- 14 is a schematic diagram of an application example 2 air interface user plane protocol stack
- Figure 15 is a schematic diagram of an application example 3 system
- 16 is a schematic diagram of an application example 3 air interface control plane protocol stack
- 17 is a schematic diagram of an application example 3 air interface user plane protocol stack. Preferred embodiment of the invention
- the embodiment provides a system as shown in FIG. 1, including: a 3GPP core network, a 3GPP access network, and a user equipment (UE): wherein the UE accesses the 3GPP access network through a WiFi module (or a WLAN module or a WLAN entity). Establishing a WiFi-based wireless connection with the 3GPP access network, and accessing the 3GPP core network through the 3GPP access network. That is to say, both the UE and the 3GPP access network support WLAN access, and can support the use of the WiFi module for data transmission and reception.
- a WiFi module or a WLAN module or a WLAN entity
- the following describes the UE and 3GPP access network devices that implement converged network data transmission.
- the UE in this embodiment includes a UE underlying WLAN entity and a UE upper layer entity, where:
- the underlying WLAN entity of the UE is configured to encapsulate signaling and/or data delivered by the upper layer entity of the UE into a WLAN protocol format and send the information to the 3GPP access network through the air interface, and to receive the 3GPP access network to send the message through the air interface. And the data is decapsulated and sent to the upper layer entity of the UE; the upper layer entity of the UE is configured to send signaling and/or data to the underlying WLAN entity of the UE, and is configured to receive signaling and decapsulation of the underlying WLAN entity of the UE. / or data.
- the upper layer entity of the UE is further configured to establish a control plane connection and/or a user plane connection with the 3GPP access network through the UE bottom layer WLAN entity and the air interface.
- the above-mentioned UE upper layer entity includes one or more of the following entities: a radio resource control (RRC) layer entity, a packet data convergence layer protocol (PDCP) layer entity, a radio link control (RLC) layer entity, and a medium access control (MAC) ) layer entity.
- RRC radio resource control
- PDCP packet data convergence layer protocol
- RLC radio link control
- MAC medium access control
- the UE bottom layer WLAN entity includes a WLAN medium access control (MAC) entity and a WLAN physical layer (PHY) entity.
- a logical link control (LLC) layer entity may be further included to encapsulate or decapsulate the transmission between the underlying WLAN entity of the UE and the upper layer entity of the UE. Signaling and / or data.
- LLC logical link control
- the 3GPP access network device in this embodiment includes an access network underlying WLAN entity and an access network layer entity, where:
- the WLAN entity of the access network is configured to encapsulate the signaling and/or data sent by the access network layer entity into a WLAN protocol format and send the signal to the UE over the air interface, and to receive the signaling sent by the UE through the air interface. / or data, decapsulated and sent to the access network layer entity;
- the access network layer entity is configured to send signaling and/or data to the underlying WLAN entity of the access network, and to receive signaling and/or data after decapsulation of the WLAN entity of the access network.
- the access network layer entity is further configured to establish a control plane connection and/or a user plane connection with the UE through the access network bottom layer WLAN entity and the air interface.
- the access network layer entity includes one or more of the following entities: a radio resource control (RRC) layer entity, a packet data convergence layer protocol (PDCP) layer entity, a radio link control (RLC) layer entity, and media access Control (MAC) layer entity.
- RRC radio resource control
- PDCP packet data convergence layer protocol
- RLC radio link control
- MAC media access Control
- the upper layer entity of the UE corresponds to the entity contained in the access network layer entity.
- a logical link control (LLC) layer entity is further included between the access network bottom layer WLAN entity and the access network layer entity, and is configured to encapsulate or decapsulate the access network bottom layer WLAN entity and the access network layer entity. Signaling and/or data transmitted between. If the LLC layer entity is set, the UE and the access network device need to be set at the same time.
- LLC logical link control
- the 3GPP access network device includes an evolved base station (Evolved Node B, eNB), a home evolved base station (Home eNB, HeNB), or a wireless relay (Relay Node) in the LTE system; and includes a radio network controller in the UMTS system. (Radio Network Controller, RNC) and base station (NodeB).
- RNC Radio Network Controller
- NodeB base station
- the RRC layer entity, the PDCP layer entity, the RLC layer entity, and the MAC layer entity are respectively included in the UE upper layer entity and the access network layer entity.
- the air interface between the UE and the 3GPP access network is based on WiFi.
- the module performs data transmission and reception, that is, the underlying entity is composed of 802.11 (MAC and PHY) protocol entities.
- the UE and the 3GPP access network follow the 3GPP air interface protocol (including the 3GPP layer 2 and/or layer 3 protocol layer).
- the peer-to-peer protocol layer connection is established, including the control plane connection and the user plane connection, and the WiFi connection-based wireless connection control plane and the user plane protocol stack established between the UE and the 3GPP access network are respectively shown in FIG. 3 and FIG. 4.
- the control plane protocol stack is composed of 3GPP RRC, PDCP, RLC, MAC layer and WLAN MAC and PHY layer;
- the user plane protocol stack is composed of 3GPP PDCP, RLC, MAC layer and WLAN MAC and PHY layer; preferably, in the control plane protocol In the stack and user plane protocol stack, an LLC layer may be added between the WLAN MAC layer and the 3GPP protocol layer to encapsulate or decapsulate the data.
- each protocol entity in the upper layer 3GPP protocol entity is the same as that of the corresponding protocol layer in the existing 3GPP network, but some functions can be simplified.
- the broadcast paging function of the RRC layer entity can be omitted.
- the following one or more protocol layer entities may also be omitted: the PDCP layer entity, the RLC layer entity, and the MAC layer entity. If omitted, the UE and the access network device are omitted.
- the protocol entities in the upper layer 3GPP protocol entity can be simplified.
- the RLC layer entity can omit the segmentation cascade function.
- one or more of the following protocol layer entities can also be omitted: MAC layer entity, RLC layer entities, etc. If omitted, the UE and the access network device need to be omitted.
- the interface protocol between the 3GPP access network and the 3GPP core network, and the existing interface protocol, for example, the S1 port protocol stack in the LTE system, the control plane protocol layer shown in FIG. 5, and the user plane protocol layer refer to FIG. It is shown in the UMTS system that the Iu port protocol, etc., will not be repeated here.
- the UE and the network side still use the normal 3GPP access layer in the control plane.
- This embodiment describes the processing performed by the user equipment and the processing performed by the access network device in the data transmission method for implementing the converged network.
- the processing performed by the user equipment is as shown in Figure 7, and includes the following steps:
- Step 10 The UE underlying WLAN entity encapsulates the signaling and/or data sent by the upper layer entity of the UE into a WLAN protocol format and sends the signal to the 3GPP access network through the air interface.
- Step 11 The UE underlying WLAN entity receives the signaling and/or data sent by the 3GPP access network through the air interface, decapsulates and sends the signal to the upper layer entity of the UE.
- the method further includes: the upper layer entity of the UE establishes a control plane connection and/or a user plane connection with the 3GPP access network through the UE underlying WLAN entity and the air interface.
- the foregoing method further includes:
- the LLC layer entity encapsulates the signaling and/or data sent by the upper layer entity of the UE and sends the signal to the UE's underlying WLAN entity.
- the signaling and/or data sent by the UE's underlying WLAN entity is decapsulated and sent to the upper layer entity of the UE.
- the processing performed by the access network device is as shown in Figure 8, and includes the following steps:
- Step 20 The WLAN entity at the bottom of the access network encapsulates the signaling and/or data sent by the access network layer entity into a WLAN protocol format and sends the signal to the UE through the air interface.
- Step 21 The WLAN entity at the bottom of the access network receives the signaling and/or data sent by the UE through the air interface, decapsulates and sends the signal to the access network layer entity.
- the method further includes: the access network layer entity establishes a control plane connection and/or a user plane connection with the UE through the access network bottom layer WLAN entity and the air interface.
- the method further includes:
- the LLC layer entity encapsulates the signaling and/or data sent by the access network layer entity and sends it to the access.
- the underlying WLAN entity of the network
- the signaling and/or data sent by the WLAN entity at the bottom of the access network is decapsulated and sent to the access network layer entity.
- this example uses the convergence of LTE and WLAN as an example.
- the access network element is an eNB that supports WLAN access. The description is as follows.
- the UE supporting the WLAN access accesses the access network eNB supporting the WLAN access by means of the underlying WLAN air interface transmission mechanism, and finally establishes with the core network element MME, S/P-GW (S-GW and P-GW) respectively.
- the control surface is connected to the user plane.
- the UE and the eNB are processed by the LTE RRC layer entity and the LTE PDCP layer entity on the lower layer WLAN PHY and the WLAN MAC layer entity.
- the RRC signaling between the UE and the eNB is processed by the LTE PDCP layer entity (the processing may include header compression, encryption, etc.), and then transmitted by the WLAN layer entity to the peer end, and the peer LTE PDCP layer entity performs reverse processing ( For example, decryption, header decompression, etc., and finally get LTE RRC signaling.
- the LTE PDCP layer entity may also be omitted, that is, the LTE RRC layer data is directly sent to the WLAN layer entity; optionally, the LTE RLC layer entity and/or the LTE RLC layer entity may be added between the LTE PDCP layer entity and the WLAN MAC layer entity.
- the interface protocol is consistent with the existing S1 control plane interface protocol between the eNB of the LTE layer entity and the WLAN MAC layer entity and the MME.
- the LTE NAS layer protocol is still used between the UE and the MME, which is consistent with the existing NAS functions. It will not be described here.
- the UE and the eNB are processed by the LTE PDCP layer entity on top of the lower layer WLAN PHY and WLAN MAC layer entities.
- the user data ie, IP data
- the LTE PDCP layer entity the processing may include header compression, encryption, etc.
- the peer LTE PDCP layer entity performs reverse processing (such as decryption, header decompression, etc.), and finally obtains user data.
- the LTE PDCP layer entity may also be omitted, that is, the user data is directly sent to the WLAN layer entity; optionally, the LTE RLC layer entity and/or the LTE MAC may be added between the LTE PDCP layer entity and the WLAN MAC layer entity.
- the processing of layer entities Preferably, an LLC layer entity may also be introduced between the LTE layer entity and the WLAN MAC layer entity for protocol data adaptation.
- the interface protocol between the eNB and the S/P-GW is the same as that of the existing S1 control plane interface protocol, and is not mentioned here.
- the access network element is a host eNB (DeNB) and a relay node (RN) supporting WLAN access, as explained below.
- DeNB host eNB
- RN relay node
- the UE supporting the WLAN access accesses the access network RN supporting the WLAN access by using the underlying WLAN air interface transmission mechanism, accesses the DeNB through the backhaul link of the RN (ie, the Un interface), and finally connects to the DeNB of the core network element MME.
- the S/P-GW establishes a control plane and a user plane connection, respectively.
- the UE and the RN are processed by the LTE RRC layer entity and the LTE PDCP layer entity on the lower layer WLAN PHY and WLAN MAC layer entities.
- the RRC signaling between the UE and the RN is processed by one or more of the following entities: an LTE PDCP layer entity, an RLC layer entity, and a MAC layer entity.
- the PDCP layer entity processing may include header compression, encryption, integrity protection, etc.; RLC layer entity processing may include segmentation reassembly, etc.; MAC layer entity processing may include multiplexing and resource scheduling, and the like.
- the WLAN layer entity After being processed by the upper layer entity, the WLAN layer entity is forwarded to the peer end, and is reversely processed by the peer related LTE entity, including one or more of the following entities (to be adapted to the peer end): MAC layer entity, RLC Layer entity, PDCP layer entity. Then finally get LTE RRC signaling.
- the LLC layer can also be introduced between the LTE protocol layer and the WLAN MAC layer protocol for protocol data adaptation.
- the UE data is transmitted using the normal Un interface protocol.
- DeNB and MME The interface protocol is consistent with the existing S1 control plane interface protocol.
- the UE and the port are still processed using the LTE NAS layer protocol, which is consistent with the existing NAS functions. I will not repeat them here.
- the UE and the RN are processed by one or more of the following entities on the lower layer WLAN and the WLAN MAC layer entity: an LTE PDCP layer entity, an RLC layer entity, and a MAC layer entity.
- the user data i.e., IP data
- the PDCP layer entity processing may include header compression, encryption, and the like;
- the RLC layer entity processing may include segment reassembly, etc.;
- the MAC layer entity processing may include multiplexing and resource scheduling.
- the upper layer entity After being processed by the upper layer entity, it is passed to the peer end by the underlying WLAN layer entity, and the corresponding upper layer entity of the peer end performs peer-to-peer reverse processing, and finally the user data is obtained.
- the LTE PDCP layer entity, the RLC layer entity, and the MAC layer entity may be omitted according to a specific implementation.
- the LLC layer can also be introduced between the LTE protocol layer and the WLAN MAC layer protocol for protocol data adaptation.
- the normal Un interface protocol is used between the RN and the DeNB to transmit UE data.
- the interface protocol between the DeNB and the S/P-GW is the same as that of the existing S1 control plane interface protocol. I will not repeat them here.
- this example uses the convergence of UMTS and WLAN as an example.
- the access network element is RNC and NodeB that supports WLAN access. The description is as follows.
- the UE supporting the WLAN accesses the NodeB supporting the WLAN by using the underlying WLAN air interface transmission mechanism, and finally establishes a control plane and a user plane connection with the core network through the RNC.
- the LTE RRC layer entity performs control plane signaling interaction.
- the RRC signaling between the UE and the RNC is processed by the LLC layer entity on the NodeB side (the processing may include header compression, encryption, etc.), and then delivered to the peer by the WLAN layer entity.
- the LLC layer entity may also be omitted, that is, the RRC layer data is straight.
- the WLAN layer entity may be sent to the WLAN layer entity.
- the LTE RLC layer entity and/or the LTE MAC layer entity may be used to encapsulate the signaling under the RRC layer entity between the UE and the RNC. There are similar agreements, no comments.
- the interface protocol between the RNC and the SGSN is the same as that of the existing Iu control plane interface protocol.
- the UE and the SGSN still use the NAS layer protocol to process, which is consistent with the existing NAS functions. I will not repeat them here.
- the user data between the UE and the access network is forwarded to the NodeB by the RNC, and further encapsulated by the NodeB according to the LLC protocol, and then transmitted to the peer end by the WLAN layer entity of the WiFi module.
- the LLC layer entity may also be omitted, that is, the user data is directly sent to the WLAN layer entity for sending; optionally, the user plane data between the UE and the RNC may be further encapsulated, for example, added in the following entity.
- the interface protocol between the eNB and the SGSN/GGSN is the same as that of the existing Iu control plane interface protocol, and will not be described again.
- the 3GPP frequency band can be saved, and the free WLAN frequency band can be replaced, which can save the operator a large operation expenditure; at the same time, there is no modification to the core network and the ground side interface (ie, the Sl/Iu port), and the air interface is fully restored.
- the control plane function of 3GPP the control of the network to the user is increased, and the support for mobility is better completed.
- the embodiment of the invention implements the fusion of 3GPP and WLAN networks.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/399,134 US20150131552A1 (en) | 2012-07-24 | 2013-07-24 | Method, ue and access network device for implementing data transmission of convergence network |
EP13804838.4A EP2835937B1 (en) | 2012-07-24 | 2013-07-24 | Method, ue and access network device for implementing data transmission of convergence network |
JP2015517599A JP6045689B2 (ja) | 2012-07-24 | 2013-07-24 | コンバージェンスネットワークのデータ伝送を実現する方法、ue及び3gppアクセスネットワーク装置 |
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EP3108689A1 (en) * | 2014-02-21 | 2016-12-28 | Convida Wireless, LLC | Handover in integrated small cell and wifi networks |
WO2016119249A1 (zh) * | 2015-01-30 | 2016-08-04 | 华为技术有限公司 | 多流聚合方法、装置及系统 |
CN104717699B (zh) * | 2015-04-09 | 2018-05-15 | 宇龙计算机通信科技(深圳)有限公司 | 无线资源控制信令的传输方法及传输系统 |
CN107615808B (zh) | 2015-07-15 | 2021-01-08 | 富士通株式会社 | Lte和wlan聚合的数据处理方法、装置以及通信系统 |
CN108605381B (zh) * | 2016-02-04 | 2020-10-27 | 华为技术有限公司 | 通信链路建立方法、终端及网络设备 |
CN107197505B (zh) * | 2016-03-15 | 2020-02-14 | 财团法人工业技术研究院 | 节省移动台功耗的方法、移动台、基站及接入点 |
JP2021530151A (ja) | 2018-06-28 | 2021-11-04 | コンヴィーダ ワイヤレス, エルエルシー | Nr v2xサイドリンク共有チャネルデータ送信の優先順位付けプロシージャ |
CN110958709A (zh) | 2018-09-27 | 2020-04-03 | 维沃移动通信有限公司 | 数据传输方法及通信设备 |
CN117981390A (zh) * | 2021-11-22 | 2024-05-03 | Oppo广东移动通信有限公司 | 切换方法、装置、设备及存储介质 |
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CN102215530A (zh) * | 2011-05-27 | 2011-10-12 | 上海华为技术有限公司 | 一种数据流传输方法及相关设备、系统 |
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US5909431A (en) * | 1996-06-28 | 1999-06-01 | At&T Corp. | Packet mode multimedia conferencing services over an ISDN wide area network |
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EP1929815B1 (en) * | 2005-09-30 | 2018-05-30 | Telefonaktiebolaget LM Ericsson (publ) | Means and methods for improving the handover characteristics of integrated radio access networks |
WO2010062043A2 (en) * | 2008-11-03 | 2010-06-03 | Lg Electronics Inc. | Method and apparatus for rrc connection reestablishment in wireless communication system |
US9094864B2 (en) * | 2011-03-02 | 2015-07-28 | Qualcomm Incorporated | Architecture for WLAN offload in a wireless device |
US9877139B2 (en) * | 2011-10-03 | 2018-01-23 | Intel Corporation | Device to device (D2D) communication mechanisms |
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CN1852112A (zh) * | 2006-02-17 | 2006-10-25 | 华为技术有限公司 | 一种通过无线局域网进行信息交互的系统和方法 |
CN102215530A (zh) * | 2011-05-27 | 2011-10-12 | 上海华为技术有限公司 | 一种数据流传输方法及相关设备、系统 |
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CN103582010B (zh) | 2019-02-15 |
JP6045689B2 (ja) | 2016-12-14 |
EP2835937A4 (en) | 2015-05-27 |
EP2835937A1 (en) | 2015-02-11 |
US20150131552A1 (en) | 2015-05-14 |
JP2015525541A (ja) | 2015-09-03 |
CN103582010A (zh) | 2014-02-12 |
EP2835937B1 (en) | 2019-09-11 |
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