WO2015042883A1 - 上行业务传输方法、下行业务传输方法和设备 - Google Patents

上行业务传输方法、下行业务传输方法和设备 Download PDF

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Publication number
WO2015042883A1
WO2015042883A1 PCT/CN2013/084494 CN2013084494W WO2015042883A1 WO 2015042883 A1 WO2015042883 A1 WO 2015042883A1 CN 2013084494 W CN2013084494 W CN 2013084494W WO 2015042883 A1 WO2015042883 A1 WO 2015042883A1
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WO
WIPO (PCT)
Prior art keywords
access node
anchor point
virtual anchor
terminal
sent
Prior art date
Application number
PCT/CN2013/084494
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English (en)
French (fr)
Inventor
李亚娟
蔺波
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 CN201380002413.7A priority Critical patent/CN104685962A/zh
Priority to PCT/CN2013/084494 priority patent/WO2015042883A1/zh
Publication of WO2015042883A1 publication Critical patent/WO2015042883A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/22Alternate routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • 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

Definitions

  • the present invention relates to a communication technology, and in particular, to an uplink service transmission method, a downlink service transmission method, and a device. Background technique
  • the enhancement (SCE) problem is to deploy some small-scale base stations Smal l Cel l that are easier to manage and schedule, and to divert some services of the macro cell, and the cooperation between Smal l cel l and macro cell can be used to offload the macro cell.
  • the traffic pressure increases the capacity of the network and the inter-frequency handover problem caused by user mobility.
  • the terminal enters the coverage of different base stations in the process of moving. Therefore, the terminal needs to perform signaling transmission through the S1 interface between the newly accessed base station and the core network, and between the source base station and the core network.
  • the existing signaling needs to be released through the S1 interface, which may result in an increase in the load of the S1 interface signaling, and may even cause interruption of user services and loss of signaling.
  • the embodiment of the invention provides an uplink service transmission method, a downlink service transmission method and a device, to solve the problem that the signaling load of the S1 interface is too heavy.
  • a first aspect of the present invention provides an uplink service transmission method, including:
  • the access node receives the uplink data sent by the terminal;
  • the access node sends the uplink data to the virtual anchor point, so that the virtual anchor sends the uplink data to the core network device.
  • the virtual anchor point is an initial of the terminal And an access node, where the access node is a current serving node after the terminal performs one or more switching operations by the initial access node.
  • the method before the receiving, by the access node, the uplink data sent by the terminal, the method further includes:
  • the access node receives the handover request sent by the virtual anchor or the source access node, where the handover request carries information of the virtual anchor point.
  • the method before the receiving, by the access node, the uplink data sent by the terminal, the method further includes:
  • the access node sends a random access response RAR to the terminal.
  • the method further includes:
  • the access node sends a virtual anchor request message to the virtual anchor; the access node receives a virtual anchor response message sent by the virtual anchor.
  • the random access request received by the access node carries the user support virtual anchor point Instructions; or,
  • the method further includes: the access node sending a capability query message to the terminal; the access node receiving the user support virtual The indication of the anchor point.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or High-capacity small cell base stations or other network nodes.
  • a second aspect of the present invention provides an uplink service transmission method, including:
  • the virtual anchor receives the uplink data of the terminal sent by the access node
  • the virtual anchor sends the uplink data to a core network device.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the method before the virtual anchor receives the uplink data of the terminal sent by the access node, the method further includes: the virtual anchor sending a handover request to the access node, where the handover request carries the information of the virtual anchor point .
  • the method before the receiving, by the virtual anchor, the uplink data of the terminal sent by the access node, the method further includes:
  • the virtual anchor sends a handover command to the terminal, where the handover command carries the virtual anchor as an indication message of the initial access node.
  • the method before the receiving, by the virtual anchor, the uplink data of the terminal sent by the access node, the method further includes:
  • the virtual anchor receives a setup virtual anchor request message sent by the access node; the virtual anchor sends a virtual anchor response message to the access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high capability small cell base station.
  • a third aspect of the present invention provides a downlink service transmission method, including:
  • the access node receives downlink data from the core network device sent by the virtual anchor point;
  • the access node sends the downlink data to the terminal.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the method before the receiving, by the access node, the downlink data sent by the virtual network device from the core network device, the method further includes:
  • the access node receives the handover request sent by the virtual anchor or the source access node, where the handover request carries information of the virtual anchor point.
  • the method before the receiving, by the access node, the downlink data sent by the virtual network device from the core network device, the method further includes:
  • the access node sends a random access response RAR to the terminal.
  • the method further includes: the access node Sending a virtual anchor request message to the virtual anchor point;
  • the access node receives a setup virtual anchor response message sent by the virtual anchor point.
  • the random access request received by the access node carries the user support virtual anchor point Instructions; or,
  • the method further includes: the access node sending a capability query message to the terminal; the access node receiving the user support virtual The indication of the anchor point.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or High-capacity small cell base stations or other network nodes.
  • a fourth aspect of the present invention provides a downlink service transmission method, including:
  • the virtual anchor receives downlink data sent by the core network device
  • the virtual anchor sends the downlink data to the access node, so that the access node sends the downlink data to the terminal.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the method before the virtual anchor point receives the downlink data sent by the core network device, the method further includes:
  • the virtual anchor sends a handover request to the access node, where the handover request carries information of the virtual anchor point.
  • the virtual anchor point before the virtual anchor receives the downlink data sent by the core network device, the virtual anchor point further includes: the virtual anchor point Sending a handover command to the terminal, where the handover command carries information of the virtual anchor point.
  • the method before the virtual anchor receives the downlink data sent by the core network device, the method further includes: The virtual anchor receives a setup virtual anchor request message sent by the access node; the virtual anchor sends a virtual anchor response message to the access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high capability small cell base station or Other network nodes.
  • a fifth aspect of the present invention provides an access node, including:
  • a receiving module configured to receive uplink data sent by the terminal
  • a sending module configured to send the uplink data received by the receiving module to the virtual anchor, so that the virtual anchor sends the uplink data to the core device.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the receiving module is further configured to: receive the virtual anchor or source before receiving uplink data sent by the terminal a handover request sent by the ingress node, where the handover request carries information of the virtual anchor point.
  • the receiving module is further configured to: before receiving the uplink data sent by the terminal, receive the random access request sent by the terminal;
  • the sending module is further configured to: send a random access response RAR to the terminal.
  • the sending module is further configured to: after sending the random access response RAR to the terminal, to the virtual anchor Point sending a virtual anchor request message;
  • the receiving module is further configured to: receive a virtual anchor response message sent by the virtual anchor point.
  • the receiving module receives, by using the random access request, the indication information that the terminal supports the virtual anchor point Or,
  • the method further includes: the sending module sending a capability query message to the terminal; the receiving module receiving, by the terminal, the terminal supporting the virtual anchor point Instructions.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or High-capacity small cell base stations or other network nodes.
  • a sixth aspect of the present invention provides a virtual anchor point, including:
  • a receiving module configured to receive uplink data of the terminal sent by the access node
  • a sending module configured to send the uplink data received by the receiving module to a core network device.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the sending module before the receiving module receives the uplink data of the terminal sent by the access node, sends the uplink data to the access node A handover request, the handover request carrying information of the virtual anchor point.
  • the sending module before the receiving module receives the uplink data of the terminal sent by the access node, the sending module sends the terminal to the terminal And sending a handover command, where the handover command carries the virtual anchor point as an indication message of the initial access node.
  • the receiving module is further configured to: before receiving the uplink data of the terminal that is sent by the access node, receive the setup virtual anchor request message sent by the access node;
  • the sending module is further configured to: send a virtual anchor response message to the access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high capability small cell base station.
  • a seventh aspect of the present invention provides an access node, including:
  • the receiving module is configured to receive downlink data from the core network device that is sent by the virtual anchor, and send, by the sending module, the downlink data that is received by the receiving module to the terminal.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by a single or multiple The current service node after the secondary switch operation.
  • the receiving module is further configured to: before receiving the downlink data sent by the virtual network node from the core network device, The virtual anchor or the handover request sent by the source access node, where the handover request carries the information of the virtual anchor.
  • a third possible implementation manner of the seventh aspect before receiving the downlink data sent by the virtual network node from the core network device, receiving the random access request sent by the terminal ;
  • the sending module is further configured to: send a random access response RAR to the terminal.
  • the sending module is further configured to: after sending the random access response RAR to the terminal, send a virtual anchor request message to the virtual anchor point;
  • the receiving module is further configured to: receive a virtual anchor response message sent by the virtual anchor point.
  • the sending module before the receiving module receives the uplink data of the terminal sent by the access node, the sending module sends The terminal sends a handover command, where the handover command carries the virtual anchor point as an indication message of the initial access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or High-capacity small cell base stations or other network nodes.
  • An eighth aspect of the present invention provides a virtual anchor point, including:
  • a receiving module configured to receive downlink data sent by the core network device
  • a sending module configured to send the downlink data to the access node, so that the access node sends the downlink data to the terminal.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the sending module before the receiving module receives the downlink data sent by the core network device, the sending module sends The access node sends a handover request, where the handover request carries information of the virtual anchor point.
  • the sending module before the receiving module receives the downlink data sent by the core network device, the sending module sends a switch to the terminal The command, the switching command carries information of the virtual anchor point.
  • the receiving module is further configured to: before receiving downlink data sent by the core network device, receive a virtual anchor request message sent by the access node;
  • the sending module is further configured to: send a virtual anchor response message to the access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high capability small cell base station. Or other network nodes.
  • a ninth aspect of the present invention provides an access node, including:
  • a receiver configured to receive uplink data sent by the terminal
  • a transmitter configured to send the uplink data received by the receiver to a virtual anchor, so that the virtual anchor sends the uplink data to a core device.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the receiver is further configured to: receive the virtual anchor or source before receiving uplink data sent by the terminal a handover request sent by the ingress node, where the handover request carries information of the virtual anchor point.
  • the receiver is further configured to: before receiving the uplink data sent by the terminal, receive a random access request sent by the terminal;
  • the transmitter is further configured to: send a random access response RAR to the terminal.
  • the transmitter is further configured to: after sending the random access response RAR to the terminal, to the virtual The anchor sends a virtual anchor request message.
  • the receiver is further configured to: receive a virtual anchor response message sent by the virtual anchor.
  • the method further includes: the sender sending a capability query message to the terminal; the receiver receiving, by the terminal, the terminal supporting a virtual anchor point Instructions.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high Capable of small cell base stations or other network nodes.
  • a tenth aspect of the present invention provides a virtual anchor point, including:
  • a receiver configured to receive uplink data of a terminal sent by the access node
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by one or more times.
  • the current service node after the switch operation.
  • the transmitter before the receiver receives the uplink data of the terminal sent by the access node, the transmitter sends the access The node sends a handover request, where the handover request carries information of the virtual anchor point.
  • the sender before the receiver receives the uplink data of the terminal sent by the access node, the sender sends the The terminal sends a handover command, where the handover command carries the virtual anchor point as an indication message of the initial access node.
  • the receiver is further configured to: before receiving uplink data of the terminal that is sent by the access node, receive a virtual anchor request message sent by the access node;
  • the transmitter is further configured to: send a setup virtual anchor response message to the access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high capability small cell base station.
  • An eleventh aspect of the present invention provides an access node, including:
  • the receiver is configured to receive downlink data from the core network device that is sent by the virtual anchor, and send, by the transmitter, the downlink data that is received by the receiver to the terminal.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by a single or multiple The current service node after the secondary switch operation.
  • the receiver is further configured to: before receiving downlink data sent by the virtual network node from the core network device, The virtual anchor or the handover request sent by the source access node, where the handover request carries the information of the virtual anchor.
  • the receiver is further configured to: receive a random access request sent by the terminal before receiving downlink data from the core network device that is sent by the virtual anchor point;
  • the transmitter is further configured to: send a random access response RAR to the terminal.
  • the transmitter is further configured to: after sending the random access response RAR to the terminal, The virtual anchor sends a virtual anchor request message.
  • the receiver is further configured to: receive a virtual anchor response message sent by the virtual anchor.
  • the random access request received by the receiver carries the user support virtual anchor point Instructions; or,
  • the method further includes: the sender sending a capability query message to the terminal; the receiver receiving, by the terminal, the user supporting a virtual anchor point Instructions.
  • the access node is a small cell base station
  • the virtual anchor point is an acer base Station or high-capacity small cell base station or other network node.
  • a twelfth aspect of the present invention provides a virtual anchor point, including: a receiver, configured to receive downlink data sent by a core network device; And a transmitter, configured to send the downlink data to the access node, so that the access node sends the downlink data to the terminal.
  • the virtual anchor point is an initial access node of the terminal, and the access node is that the terminal is performed by the initial access node by a single or multiple The current service node after the secondary switch operation.
  • the sender before the receiver receives the downlink data sent by the core network device, the sender sends the information to the access node A handover request, the handover request carrying information of the virtual anchor point.
  • the sender before the receiver receives the downlink data sent by the core network device, the sender sends the The terminal sends a handover command, where the handover command carries information of the virtual anchor point.
  • the receiver is further configured to: before receiving downlink data sent by the core network device, receive a virtual anchor request message sent by the access node;
  • the transmitter is further configured to: send a setup virtual anchor response message to the access node.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high capability small cell Base station or other network node.
  • FIG. 1 is a flowchart of a method for uplink service transmission according to an embodiment of the present invention
  • FIG. 2 is a flowchart of an uplink service transmission method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of an uplink data transmission path according to an embodiment of the present invention
  • FIG. 4 is a signaling flowchart of Embodiment 1 of the present invention
  • FIG. 5 is a signaling flowchart of Embodiment 1 of the present invention
  • FIG. 6 is a flowchart of a downlink service transmission method according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a downlink service transmission method according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a downlink data transmission path according to an embodiment of the present invention.
  • FIG. 9 is a signaling flowchart of an embodiment of the present invention.
  • FIG. 10 is a signaling flowchart of an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • 16 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • FIG. 17 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • GSM Global System for Mobi le communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • FRY Frequency Division Multiple Addressing
  • OFDMF Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the access node involved in the present application may be a base station (Base Transceiver Station, BTS for short) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • NodeB evolved base station in LTE
  • LTE NodeB or eNB or e-NodeB, evolutional Node B
  • the terminal involved in the present application may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connection function, or other device connected to the wireless modem. Processing equipment.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, Radio Access Network, RAN for short), and the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone).
  • RAN Radio Access Network
  • Computers with mobile terminals for example, may be portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
  • a wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobi Le Station, a Mobi le, a Remote Station, and an Access Point. ), Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • FIG. 1 is a flowchart of an uplink service transmission method according to an embodiment of the present invention. As shown in FIG. 1, the method includes:
  • Step 101 The access node receives uplink data sent by the terminal.
  • the access node may be a current serving node after the terminal performs one or more handover operations by the initial access node.
  • the access node may be a micro base station (Smal l Cel l evolved Node B, referred to as: SC eNB), or may be a network device such as a Macro Cel evolved Node B (MC eNB for short).
  • SC eNB micro base station
  • MC eNB Macro Cel evolved Node B
  • Step 102 The access node sends the uplink data to the virtual anchor point, so that the virtual anchor sends the uplink data to the core network device.
  • the virtual anchor point may be an initial access node of the terminal, or may be a macro base station or a high-capability small cell base station or other network node.
  • the access node if the access node is the current serving node of the terminal, the virtual anchor point may be the initial access node of the terminal; in another implementation scenario, if the access node is an SC eNB (Smal l Cel l evolved Node B (referred to as: micro base station), the virtual anchor point may be a macro base station or a high-capacity small cell base station or other network node.
  • SC eNB Smal l Cel l evolved Node B
  • the access node receives the uplink data that the terminal needs to upload, and then forwards the data to the virtual anchor point of the terminal, and the virtual anchor point uploads the data that the terminal needs to upload to the core network device. That is to say, the path through which the uplink data of the terminal passes is from the terminal to the access node to the virtual anchor to the core network device.
  • the uplink data does not need to pass through the S1 interface between the access node and the core network device. Therefore, when the access node changes due to the mobility of the UE, the S1 interface does not need to be modified, and the load on the S1 interface can be reduced to ensure normal operation of the user.
  • the core network device may be a Mobiity Management Entity (MME) or a Service GateWay (SGW) device.
  • MME Mobiity Management Entity
  • SGW Service GateWay
  • the terminal when the terminal transmits data to the core network device, the data is sent to the core network device by the virtual anchor point through the access node and the virtual anchor point, thereby reducing access.
  • the S1 interface load between the node and the core network device ensures the normal operation of the terminal service.
  • FIG. 2 is a flowchart of an uplink service transmission method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • Step 201 The virtual anchor receives uplink data of the terminal sent by the access node.
  • the virtual anchor point may be a node that the user initially accesses, or may be a macro base station or a high-capacity small cell base station or other network node.
  • the access node may be the current serving node after the terminal performs one or more switching operations by the initial access node.
  • the virtual anchor The point may be the initial access node of the terminal; in another implementation scenario, if the access node is a SC eNB (Smal l Cel l evolved Node B, referred to as: a micro base station), the virtual anchor point may be a macro base station or High-capacity small cell base stations or other network nodes.
  • the virtual anchor receives the uplink data that the terminal forwards by the access node needs to upload.
  • Step 202 The virtual anchor sends the uplink data to the core network device.
  • the core network device may be a Mobiity Management Entity (MME) or a Service GateWay (SGW) device.
  • MME Mobiity Management Entity
  • SGW Service GateWay
  • the terminal sequentially transmits the data to the core network device through the access node and the virtual anchor point, and the received data is directly sent to the core network device through the virtual anchor point.
  • the S1 interface load between the access node and the core network device is reduced, and the terminal service is normally performed.
  • the initial access node of the terminal is a virtual anchor point, and the terminal is single-timed by the initial access node.
  • the current serving node that is accessed after multiple handovers is the "access node" in the embodiment shown in FIG. 1, and the method includes:
  • the terminal first enters the coverage of the access node 1, and completes initial connection establishment with the access node 1;
  • the terminal is a device that supports uplink data transmission by using a virtual anchor point.
  • the access node 1 establishes S1 interface signaling with the core network, and then performs normal service data transmission between the terminal and the access node 1 and the core network device.
  • the access node 1 can be determined as a virtual anchor point.
  • the terminal moves to the coverage of the access node 2, the terminal sends the measurement report at this time to the access node 1. After receiving the measurement report of the terminal, the access node 1 receives the measurement report according to the measurement report. Switch to access node 2;
  • the access node 1 first sends a request to the access node 2 to switch the terminal to the access node 2, where the request message carries the virtual anchor of the terminal as the message of the access node 1, and the access node 1 receives the message.
  • the handover response message of the access node 2 the handover command is sent to the terminal, and the handover command carries the message that the access node 1 is the terminal virtual anchor.
  • the terminal performs an access process to the access node 2, and after the access is completed, the terminal performs normal uplink data transmission.
  • the transmission path of the uplink data is: a terminal to an access node to a virtual anchor point to a core network device;
  • the access node 2 is the current serving node of the terminal, that is, the "access node" involved in the embodiment shown in FIG. 1;
  • the access node may be a small cell base station
  • the virtual anchor point may be a macro base station or a high-power small cell base station or other network node. It may also be that the access node is a macro base station, and the virtual anchor point is a small cell base station.
  • the initial access node is a virtual anchor point in the process of transmitting data by the terminal, and the terminal transmits the uploaded data to the core network device through the access node and the virtual anchor point in sequence, and the terminal transmits the data.
  • the data is finally sent to the core network device via the virtual anchor point, which reduces the load of the S1 interface between the access point and the core network device, and ensures the normal operation of the terminal service.
  • the ability of the terminal to support virtual anchor points is different, that is, the terminal may not support the virtual anchor point. Therefore, before using the virtual anchor point for data transmission, the access point needs to confirm the terminal first. Whether to support virtual anchors.
  • FIG. 5 is a signaling flowchart of the first embodiment of the present invention.
  • the virtual anchor point of the terminal is a macro base station or a high-power small cell base station or other network node.
  • the terminal first enters the coverage of the access node, and sends a random access request to the access node, that is, the so-called message 1. After the access node receives the random access request of the terminal, if the parsing is correct, Will feedback to the end user random access response message, which is usually said message 2;
  • the terminal After receiving the user random access response fed back by the access node, the terminal sends a radio resource control (Radio Resource Control, RRC for short) connection establishment request message, which is commonly referred to as message 3
  • RRC Radio Resource Control
  • the access node After receiving the radio resource control connection establishment request information of the user, the access node sends a radio resource control connection establishment complete message to the terminal, that is, the so-called message 4;
  • the terminal access can be considered successful
  • the access node After the access is completed, the access node sends a terminal capability query message to the terminal to determine whether the terminal supports the virtual anchor point. After receiving the capability information of the terminal, the access node may The capability message of the terminal determines whether the terminal supports the virtual anchor point;
  • the data is transmitted according to the existing technology. If it is determined that the terminal supports the virtual anchor point, the virtual anchor point is used for data transmission, and the virtual anchor point is different from the current
  • the macro base station of the access node is either a high-capacity micro base station.
  • the access node sends a message requesting to establish a virtual anchor point to the virtual anchor point.
  • the access node After receiving the response message of the virtual anchor point, the access node sends a reconfiguration message to the terminal, instructing the terminal to apply a new parameter, where the new parameter may include a security parameter, and the virtual anchor sends the terminal to the core network.
  • the path change message of 1 accesses the virtual anchor point to the data transmission process of the terminal.
  • the terminal After the virtual anchor point receives the path change response message of the core network, the terminal can perform normal uplink data transmission for the terminal.
  • the terminal may also send a message to the access node to support the virtual anchor point. Specifically, the terminal may add a message that the terminal supports the virtual anchor point in the initially accessed message 3 or message 1. The ingress node determines whether the terminal can support the virtual anchor point.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high-capability small cell base station or other network node. It may also be that the access node is a macro base station, and the virtual anchor point is a small cell base station.
  • the access node determines whether the terminal supports the virtual anchor point. If the terminal does not support the virtual anchor point, the data is transmitted according to the prior art. If the terminal supports the virtual anchor point, When the virtual anchor is connected to the data transmission process of the terminal, the data of the terminal is sequentially transmitted to the core network device through the access node and the virtual anchor point, and the virtual anchor point and the core are transmitted in the process of sending the data to the core network device by the terminal.
  • the S1 interface signaling between the networks does not change, which reduces the load on the S1 interface between the access point and the core network device, and ensures the normal operation of the terminal service.
  • FIG. 6 is a flowchart of a downlink service transmission method according to an embodiment of the present invention. As shown in FIG. 6, the method includes:
  • Step 501 The access node receives the downlink data from the core network device that is sent by the virtual anchor point, where the access node may be the current serving node after the terminal performs one or more switching operations by the initial access node, optionally
  • the access node may be a SC eNB (Smal l Cel l evolved Node B, abbreviated as: a micro base station), or may be a network device such as a MC eNB (Macro NIC evolved Node B, abbreviated as: a macro base station).
  • the virtual anchor point may be the initial access node of the terminal, or may be a macro base station or a high-capability small cell base station or other network node.
  • the virtual anchor point may be the initial access node of the terminal; in another implementation scenario, if the access node is the SC eNB (Smal l Cel l The evolved Node B, abbreviated as: a micro base station, may be a macro base station or a high-capacity small-cell base station or other network node.
  • the core network device sends the data required by the terminal to the virtual anchor point, and then sends the data required by the terminal to the current access node of the terminal through the virtual anchor point.
  • Step 502 The access node sends the downlink data to the terminal.
  • the access node sends the downlink data required by the terminal forwarded by the virtual anchor point to the terminal. That is to say, the path through which the downlink data required by the terminal passes is from the core network device to the virtual anchor point to the access point to the terminal. As shown in FIG. 7, the downlink data does not need to pass between the access node and the core network device.
  • the S1 interface therefore, when the UE changes the access node due to mobility, the S1 interface does not need to be modified, and the load on the S1 interface can be effectively reduced to ensure normal operation of the user.
  • the core network device may be a Mobi Management Management Entity (MME) or a Service GateWay (SGW) device.
  • MME Mobi Management Management Entity
  • SGW Service GateWay
  • the core network device transmits the data to the terminal, and sequentially passes the virtual anchor point and the access node, and the access node sends the data to the terminal, thereby effectively reducing the access node.
  • the load on the S 1 interface with the core network device ensures the normal operation of the terminal service.
  • FIG. 8 is a flowchart of a downlink service transmission method according to an embodiment of the present invention. As shown in FIG. 8, the method includes:
  • Step 601 The virtual anchor receives downlink data sent by the core network device.
  • the virtual anchor point may be a node that the user initially accesses, or may be a macro base station or a high-capacity small cell base station or other network node.
  • the core network device sends the data required by the terminal to the virtual anchor point.
  • Step 602 The virtual anchor sends the downlink data to the access node, so that the access node sends the downlink data to the terminal.
  • the access node may be the current serving node after the terminal performs one or more switching operations by the initial access node.
  • the virtual anchor point may be the initial access node of the terminal; in another implementation scenario
  • the virtual anchor point may be a macro base station or a high-capacity small-cell base station or other network node, if the access node is a SC eNB (Smal l Cel l evolved Node B, abbreviated as: a micro base station).
  • SC eNB Mal l Cel l evolved Node B, abbreviated as: a micro base station.
  • the path that the data required by the terminal passes is from the core network device to the virtual anchor point to the access node to the terminal.
  • these downlink data transmission processes do not need to go through the access node and the core network device.
  • the S1 interface does not need to be modified.
  • the load on the S1 interface can be effectively reduced to ensure normal user services.
  • the core network device may be a Mobiity Management Entity (MME) or a Service GateWay (SGW) device.
  • MME Mobiity Management Entity
  • SGW Service GateWay
  • the downlink data required by the core network device to send the terminal sequentially passes through the virtual anchor point and the access node.
  • the core network device directly The data is sent to the virtual anchor point, and finally the data is transmitted to the terminal by the access node, which reduces the load of the S1 interface between the core network devices of the access node domain, and ensures that the terminal service is proceeding.
  • FIG. 9 is a flowchart of signaling according to an embodiment of the present invention.
  • an initial access node of the terminal is a virtual anchor point, and the terminal is single-timed by the initial access node.
  • the current serving node that is accessed after multiple handovers is the "access node" in the embodiment shown in FIG. 6, and the method includes:
  • the terminal first enters the coverage of the access node 1, and completes initial connection establishment with the access node 1.
  • the terminal is a device that supports downlink data transmission by using a virtual anchor point.
  • the access node 1 establishes S1 interface signaling with the core network, and then performs normal service data transmission between the terminal and the access node 1 and the core network device.
  • the access node 1 can be determined as a virtual anchor point.
  • the terminal moves to the coverage of the access node 2, the terminal sends the measurement report at this time to the access node 1. After receiving the measurement report of the terminal, the access node 1 receives the measurement report according to the measurement report. Switch to access node 2;
  • the access node 1 first sends a request to the access node 2 to switch the terminal to the access node 2, where the request message carries the virtual anchor point of the terminal as the message of the access node 1, and the access node After receiving the handover response message of the access node 2, the handover command is sent to the terminal, and the handover command carries the message that the access node 1 is the terminal virtual anchor point.
  • S704 The terminal performs an access procedure to the access node 2, and after the access is completed, the terminal performs normal downlink data transmission.
  • the transmission path of the downlink data is: a core network device to a virtual anchor point to an access node to the terminal;
  • the access node 2 is the current serving node of the terminal, that is, the "access node" involved in the embodiment shown in FIG. 6;
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high-capability small cell base station or other network node. It may also be that the access node is a macro base station, and the virtual anchor point is a small cell base station.
  • the initial access node is a virtual anchor point in the process of transmitting data by the terminal
  • the core network device sequentially transmits the downlink data required by the terminal to the terminal through the virtual anchor point and the access node, and the core
  • the network device transmits the data to the terminal
  • the data is first forwarded to the access node through the virtual anchor point. Therefore, the load on the S1 interface between the access node and the core network device is reduced, and the terminal service is guaranteed to be normal.
  • the ability of the terminal to support virtual anchor points is different, that is, the terminal may not support the virtual anchor point. Therefore, before using the virtual anchor point for data transmission, the access point needs to confirm the terminal first. Whether to support virtual anchors.
  • FIG. 10 is a signaling flowchart of another embodiment of the present invention.
  • the virtual anchor point of the terminal is a macro base station or a high-power small cell base station or other network node.
  • the terminal first enters the coverage of the access node, and sends a random access request to the access node, that is, the so-called message 1. After the access node receives the random access request of the terminal, if the parsing is correct, Will feedback to the end user random access response message, which is usually said message 2;
  • the terminal After receiving the random access response of the user fed back by the access node, the terminal sends a radio resource control (Radio Resource Control, RRC for short) connection establishment request message, which is commonly referred to as message 3
  • RRC Radio Resource Control
  • the access node After receiving the radio resource control connection establishment request information of the user, the access node sends a radio resource control connection establishment complete message to the terminal, That is, the so-called message 4;
  • the terminal access can be considered successful
  • the access node After the access is completed, the access node sends a terminal capability query message to the terminal to determine whether the terminal supports the virtual anchor point. After receiving the capability message of the terminal, the access node may determine, according to the capability message of the terminal, whether the terminal supports the virtual terminal.
  • Anchor point
  • the data is transmitted according to the existing technology. If it is determined that the terminal supports the virtual anchor point, the virtual anchor point is used for data transmission, and the virtual anchor point is different from the current a macro base station of the access node or a high-capacity micro base station;
  • S804 The access node sends a message requesting to establish a virtual anchor point to the virtual anchor point.
  • the access node After receiving the response message of the virtual anchor point, the access node sends a reconfiguration message to the terminal, instructing the terminal to apply a new parameter, where the new parameter may include a security parameter, and the virtual anchor sends the terminal to the core network.
  • the path change message of 1 is used to access the virtual anchor point to the data transmission process of the terminal.
  • the terminal After the virtual anchor point receives the path change response message of the core network, the terminal can perform normal downlink data transmission for the terminal.
  • the transmission path of the downlink data is: a core network device to a virtual anchor point to an access node to the terminal;
  • the terminal may also send a message to the access node to support the virtual anchor point. Specifically, the terminal may add a message that the terminal supports the virtual anchor point in the initially accessed message 3 or message 1. The ingress node determines whether the terminal can support the virtual anchor point.
  • the access node is a small cell base station
  • the virtual anchor point is a macro base station or a high-capability small cell base station or other network node. It may also be that the access node is a macro base station, and the virtual anchor point is a small cell base station.
  • FIG. 11 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • the access node includes a receiving module 11 and a sending module 12, where the receiving module 11 is configured to receive uplink data sent by the terminal.
  • the sending module 12 is configured to send the uplink data received by the receiving module to the virtual anchor point, so that the virtual anchor point sends the uplink data to the core device.
  • the receiving module 11 receives the uplink data that the terminal needs to upload, and then the sending module 12 forwards the data to the virtual anchor point of the terminal, and the virtual anchor point uploads the data that the terminal needs to upload to the core network device. That is to say, the uplink data of the terminal does not need to pass the S1 interface between the access node and the core network device, but sends the data to the core network device through the virtual anchor point, and therefore, at the terminal When the access node changes due to mobility, the S1 interface does not need to be modified, and the load on the S1 interface can be reduced to ensure normal user services.
  • the core network device may be a Mobility Management Entity (MME) or a Service GateWay (SGW) device.
  • MME Mobility Management Entity
  • SGW Service GateWay
  • the access node provided in this embodiment is the execution device of the uplink service transmission method provided by the embodiment of the present invention.
  • the specific process of performing the uplink service transmission method refer to the methods shown in FIG. 1, FIG. 2, FIG. 4, and FIG. Related descriptions in the embodiments are not described herein again.
  • the sending module of the access node in the process of transmitting data to the core network device, sends the uplink data that the terminal needs to upload to the virtual anchor point, and the virtual anchor point is The data is sent to the core network device. Therefore, the load on the S1 interface between the access node and the core network device is reduced, and the normal operation of the terminal service is ensured.
  • FIG. 12 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • the virtual anchor point includes a receiving module 21 and a sending module 22, where the receiving module 21 is configured to receive an uplink of a terminal sent by an access node.
  • the sending module 22 is configured to send the uplink data received by the receiving module to the core network device.
  • the terminal sends the uplink data to the access node, and then the access node sends the uplink data of the terminal to the receiving module 21, and the receiving module 21 receives the uplink data to be uploaded by the terminal forwarded by the access node, and then sends the module. 22 will send the data to the core network device. That is to say, the uplink data of the terminal is sent to the virtual anchor point through the access node, and the uplink data of the received terminal is transmitted to the core network device through the virtual anchor point, and the uplink data does not need to be accessed by the access node and the core network device.
  • the S1 interface is used.
  • the core network device may be a mobility management entity (Mob i ty Management Entity, MME) or a service gateway (Service GateWay, SGW for short).
  • MME mobility management entity
  • SGW Service GateWay
  • the virtual anchor point provided in this embodiment is an execution device of the uplink service transmission method provided by the embodiment of the present invention.
  • For the specific process of performing the uplink service transmission method refer to the methods shown in FIG. 2, FIG. 3, FIG. 4, and FIG. Related descriptions in the embodiments are not described herein again.
  • the virtual anchor point the terminal sends the uplink data to the access node, and then accesses the section.
  • the point sends the data to the virtual anchor point, and the data of the terminal sends the received data directly to the core network device through the virtual anchor point, thereby reducing the load of the S1 interface between the access node and the core network device, thereby ensuring The terminal business is proceeding normally.
  • FIG. 13 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • the access node includes a receiving module 31 and a sending module 32, where the receiving module 31 is configured to receive a virtual anchor from a core.
  • the downlink data of the network device is used by the sending module 32, and the sending module 32 is configured to send the downlink data received by the receiving module to the terminal.
  • the core network device sends the data required by the terminal to the virtual anchor point, and then the virtual anchor sends the data to the receiving module 31, and then the sending module 32 sends the data sent by the core network device received by the receiving module 31.
  • Send to the terminal That is to say, the path through which the downlink data required by the terminal passes is from the core network device to the virtual anchor point to the access node to the terminal, and the downlink data does not need to pass through the S1 interface between the access node and the core network device, therefore, When the access node changes due to mobility, the S1 interface does not need to be modified, which can effectively reduce the load on the S1 interface and ensure normal user services.
  • the core network device may be a mobile management entity (Mobi Management Management Entity, CG), or may be a device such as a Service GateWay (SGW).
  • CG mobile management entity
  • SGW Service GateWay
  • the access node provided in this embodiment is the execution device of the downlink service transmission method provided by the embodiment of the present invention.
  • the specific process of performing the uplink service transmission method refer to the methods shown in FIG. 6, FIG. 7, FIG. 9, and FIG. Related descriptions in the embodiments are not described herein again.
  • the core network device transmits data to the terminal, and sequentially passes the virtual anchor point and the access node, and the access node sends data to the terminal, thereby effectively reducing the access node and
  • the S1 interface load between the core network devices ensures the normal operation of the terminal services.
  • FIG. 14 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • the virtual anchor point includes a receiving module 41 and a sending module 42, where the receiving module 41 receives downlink data sent by the core network device; 42.
  • the method is configured to send the downlink data to an access node, so that the access node sends the downlink data to a terminal.
  • the receiving module 41 receives the downlink data required by the terminal sent by the core network device
  • the sending module 42 sends the downlink data required by the terminal sent by the core network device received by the receiving module 41 to the access node, that is, the terminal.
  • the path through which the required data passes is the core
  • the network device is connected to the virtual node to the access node to the terminal.
  • the downlink data transmission process does not need to go through the S1 interface between the access node and the core network device.
  • the core network device may be a Mobility Management Entity (MME) or a service gateway (Service GateWay, SGW for short).
  • MME Mobility Management Entity
  • SGW Service GateWay
  • the virtual anchor point provided in this embodiment is the execution device of the downlink service transmission method provided by the embodiment of the present invention.
  • For the specific process of performing the uplink service transmission method refer to the methods shown in FIG. 7, FIG. 8, FIG. 9, and FIG. Related descriptions in the embodiments are not described herein again.
  • the virtual anchor point, the downlink data required by the core network device sending terminal sequentially passes through the virtual anchor point and the access node, and during the data transmission process, the core network device directly sends the data during the data transmission process.
  • the virtual anchor point is finally transmitted by the access node to the terminal, which reduces the load of the S1 interface between the core network devices of the access node domain, and ensures that the terminal service is proceeding.
  • FIG. 15 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • the device includes: a receiver 51 and a transmitter 52, where the receiver 51 is configured to receive uplink data sent by the terminal; The transmitter 52 is configured to send the uplink data received by the receiver to a virtual anchor, so that the virtual anchor sends the uplink data to a core device.
  • the receiver 51 receives the uplink data that the terminal needs to upload, and then the transmitter 52 forwards the data to the virtual anchor of the terminal, and the virtual anchor points upload the data that the terminal needs to upload to the core network device. That is to say, the uplink data of the terminal does not need to be sent to the core network device through the virtual anchor point via the S1 interface between the access node and the core network device, and therefore, the access node changes due to mobility in the terminal. When the S1 interface is not modified, the load on the S1 interface can be reduced to ensure normal user services.
  • the core network device may be a mobile management entity (obi 1 ity Management Entity, a MME) or a service gateway (Service).
  • SGW GateWay, abbreviated as: SGW) and other devices.
  • An access node is an execution device of an uplink service transmission method provided by an embodiment of the present invention, and a specific process for performing an uplink service transmission method may be implemented by using the method shown in FIG. 1, FIG. 2, FIG. 4, and FIG. The related description in the example will not be described here.
  • the access node provided by this embodiment, the process of transmitting data to the core network device by the terminal
  • the sender of the access node sends the uplink data that the terminal needs to upload to the virtual anchor point, and the virtual anchor sends the data to the core network device, thereby reducing the access node and the core network device.
  • the load on the S1 interface ensures the normal operation of the terminal service.
  • FIG. 16 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • the device includes: a receiver 61 and a transmitter 62, where the receiver 61 is configured to receive an uplink of a terminal sent by an access node.
  • the transmitter 62 is configured to send the uplink data received by the receiver to a core network device.
  • the terminal sends the uplink data to the access node, and then the access node sends the uplink data of the terminal to the receiver 61, and the receiver 61 receives the uplink data to be uploaded by the terminal forwarded by the access node, and the transmitter 62 will send the data to the core network device. That is to say, the uplink data of the terminal is sent to the virtual anchor point through the access node, and the uplink data of the received terminal is transmitted to the core network device through the virtual anchor point, and the uplink data does not need to be accessed by the access node and the core network device.
  • the S1 interface is used. Therefore, when the access node changes due to mobility, the S1 interface does not need to be modified. The load on the S1 interface can be reduced to ensure normal user services.
  • the core network device may be a mobility management entity (Mobi Management Management Entity, referred to as:
  • MME can also be a device such as Service GateWay (SGW).
  • SGW Service GateWay
  • the virtual anchor point of the embodiment of the present invention is an execution device of the uplink service transmission method provided by the embodiment of the present invention.
  • the specific process for performing the uplink service transmission method can be implemented by referring to the methods shown in FIG. 2, FIG. 3, FIG. 4, and FIG. The related description in the example will not be described here.
  • the virtual anchor point the terminal sends the uplink data to the access node, and then the access node sends the data to the virtual anchor point, and the data of the terminal sends the received data directly to the core network device through the virtual anchor point. Therefore, the load of the S1 interface between the access node and the core network device is reduced, and the normal operation of the terminal service is ensured.
  • FIG. 17 is a schematic structural diagram of an access node according to an embodiment of the present invention.
  • the device includes: a receiver 71 and a transmitter 72, where the receiver 61 is configured to receive a virtual anchor from a core network.
  • the downlink data of the device is used by the transmitter 62 to send the downlink data received by the receiver to the terminal.
  • the core network device sends the data required by the terminal to the virtual anchor point, and then the virtual anchor sends the data to the receiver 71, and then the transmitter 72 sends the data sent by the core network device received by the receiver 71.
  • the downlink data does not need to pass through the S1 interface between the access node and the core network device. Therefore, the access node changes due to mobility in the terminal.
  • the S1 interface is not modified, the load on the S1 interface can be effectively reduced to ensure normal user services.
  • the core network device may be a Mobility Management Entity (MME) or a service gateway (Serve ce Gat eWay, SGW for short).
  • MME Mobility Management Entity
  • SGW Service gateway
  • the core network device transmits data to the terminal, and sequentially passes the virtual anchor point and the access node, and the access node sends data to the terminal, thereby effectively reducing the access node and
  • the load of the S 1 interface between the core network devices ensures the normal operation of the terminal services.
  • FIG. 18 is a schematic structural diagram of a virtual anchor point according to an embodiment of the present invention.
  • the device includes: a receiver 81 and a transmitter 82, where the receiver 81 is configured to receive downlink data sent by the core network device.
  • the transmitter 82 is configured to send the downlink data to the access node, so that the access node sends the downlink data to the terminal.
  • the receiver 81 receives the downlink data required by the terminal sent by the core network device, and the transmitter 82 sends the downlink data required by the terminal sent by the core network device received by the receiver 81 to the access node, that is, the terminal.
  • the path through which the required data passes is from the core network device to the virtual anchor point to the access node to the terminal.
  • These downlink data transmission processes do not need to go through the S1 interface between the access node and the core network device, and the terminal is mobile.
  • the S1 interface does not need to be modified, which can effectively reduce the load on the S1 interface and ensure normal user services.
  • the core network device may be a mobility management entity (Mob i y Management Protocol, MME), or may be a service gateway (Service GateWay, SGW for short).
  • MME mobility management entity
  • SGW Service GateWay
  • the virtual anchor point in this embodiment is the execution device of the downlink service transmission method provided by the embodiment of the present invention.
  • For the specific process of performing the uplink service transmission method refer to the method embodiments shown in FIG. 7, FIG. 8, FIG. 9, and FIG. The related descriptions are not described here.
  • the downlink data required by the core network device to send the terminal is in turn Through the virtual anchor point and the access node, during the data transmission process, during the data transmission process, the core network device directly sends the data to the virtual anchor point, and finally the access node transmits the data to the terminal, which reduces the The S1 interface load between the core network devices of the access node domain ensures that the terminal services are proceeding.

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Abstract

本发明提供一种上行业务传输方法、下行业务传输方法和设备,其中方法包括:接入节点接收终端发送的上行数据;所述接入节点将所述上行数据发送给虚拟锚点,以使所述虚拟锚点将所述上行数据发送给核心网设备。本发明的技术方案中,终端将数据传送到核心网络设备的过程中,依次通过接入节点和虚拟锚点,由虚拟锚点将数据发送到核心网络设备,因此,降低了接入节点与核心网络设备之间的S1接口负载,保证了终端业务的正常进行。

Description

上行业务传输方法、 下行业务传输方法和设备 技术领域 本发明实施例涉及通信技术, 尤其涉及一种上行业务传输方法、 下行 业务传输方法和设备。 背景技术
随着全球移动市场的发展, 使用移动数据业务的用户规模的扩大, 移 动数据业务量也在逐渐增加, 使得已有的宏蜂窝网络的负载越来越重, 同 时基站和核心网之间进行数据交互的 S 1接口的信令负载也越来越重, 为 了给用户提供更好的服务, 第三代移动通信伙伴计划(The 3rd Generat ion Partnership Project ,简称为: 3GPP)正在研究的 smal l cel l enhancement ( SCE ) 课题, 就是通过部署一些更易管理和调度的小型化基站 Smal l Cel l , 分流宏蜂窝的一些业务, Smal l cel l和宏蜂窝间的配合, 就可以很 好的卸载宏蜂窝面临的流量压力, 增加网络的容量以及用户移动带来的异 频切换问题。
现有技术中,终端在移动的过程会进入到不同基站的覆盖范围, 因此, 终端在新接入的基站和核心网之间就需要通过 S1接口进行信令传输, 源 基站和核心网之间还需要通过 S 1接口释放已有的信令, 从而导致 S1接口 信令的负载增加, 甚至可能造成用户业务的中断以及信令的丟失。 发明内容
本发明实施例提供一种上行业务传输方法、 下行业务传输方法和设备, 以解决 S 1接口信令负载过重的问题。
本发明的第一方面提供了一种上行业务传输方法, 包括:
接入节点接收终端发送的上行数据;
所述接入节点将所述上行数据发送给虚拟锚点, 以使所述虚拟锚点将 所述上行数据发送给核心网设备。
在第一方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第一方面的第一种可能实现方式, 在第一方面的第二种可能实现 方式中, 所述接入节点接收终端发送的上行数据之前, 还包括:
所述接入节点接收所述虚拟锚点或源接入节点发送的切换请求, 所述 切换请求携带所述虚拟锚点的信息。
在第一方面的第三种可能实现方式中, 所述接入节点接收终端发送的 上行数据之前, 还包括:
所述接入节点接收所述终端发送的随机接入请求;
所述接入节点向所述终端发送随机接入响应 RAR。
结合第一方面的第三种可能性, 在第一方面的第四种可能性中, 所述 接入节点向所述终端发送随机接入响应 RAR之后, 还包括:
所述接入节点向所述虚拟锚点发送建立虚拟锚点请求消息; 所述接入节点接收所述虚拟锚点发送的建立虚拟锚点响应消息。 结合第一方面第三或第四种可能实现方式, 在第一方面的第五种可能 实现方式中, 所述接入节点接收的所述随机接入请求中携带所述用户支持 虚拟锚点的指示信息; 或者,
所述接入节点接收所述终端发送的随机接入请求之前, 还包括: 所述 接入节点向所述终端发送能力查询消息; 所述接入节点接收所述终端发送 的所述用户支持虚拟锚点的指示信息。
结合第一方面第三至第五种任意一种可能实现方式, 在第一方面的第 六种可能实现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏 基站或者高能力小小区基站或者其他网络节点。
本发明的第二方面提供了一种上行业务传输方法, 包括:
虚拟锚点接收接入节点发送的终端的上行数据;
所述虚拟锚点将所述上行数据发送给核心网设备。
在第二方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第二方面的第一种可能实现方式, 在第二方面的第二种可能实现 方式中,所述虚拟锚点接收接入节点发送的终端的上行数据之前,还包括: 所述虚拟锚点向所述接入节点发送切换请求, 所述切换请求携带所述 虚拟锚点的信息。
结合第二方面第一或第二种可能实现方式, 在第二方面的第三种可能 实现方式中, 所述虚拟锚点接收接入节点发送的终端的上行数据之前, 还 包括:
所述虚拟锚点向所述终端发送切换命令, 所述切换命令携带所述虚拟 锚点为所述初始接入节点的指示消息。
在第二方面的第四种可能实现方式中,所述虚拟锚点接收接入节点发送 的终端的上行数据之前, 还包括:
所述虚拟锚点接收所述接入节点发送的建立虚拟锚点请求消息; 所述虚拟锚点向所述接入节点发送建立虚拟锚点响应消息。
结合第二方面的第四种可能性,在第二方面的第五种可能是实现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区 基站。
本发明的第三方面提供了一种下行业务传输方法, 包括:
接入节点接收虚拟锚点发送的来自核心网设备的下行数据;
所述接入节点将所述下行数据发送给终端。
在第三方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第三方面第一种可能实现方式, 在第三方面第二种可能实现方式 中, 所述接入节点接收虚拟锚点发送的来自核心网设备的下行数据之前, 还包括:
所述接入节点接收所述虚拟锚点或源接入节点发送的切换请求, 所述 切换请求携带所述虚拟锚点的信息。
在第三方面的第三种可能实现方式中, 所述接入节点接收虚拟锚点发 送的来自核心网设备的下行数据之前, 还包括:
所述接入节点接收所述终端发送的随机接入请求;
所述接入节点向所述终端发送随机接入响应 RAR。 结合第三方面的第三种可能实现方式, 在第三方面的第四种可能实现 方式中, 所述接入节点向所述终端发送随机接入响应 RAR之后, 还包括: 所述接入节点向所述虚拟锚点发送建立虚拟锚点请求消息;
所述接入节点接收所述虚拟锚点发送的建立虚拟锚点响应消息。
结合第三方面第三种或第四种可能实现方式, 在第三方面的第五种可 能实现方式中, 所述接入节点接收的所述随机接入请求中携带所述用户支 持虚拟锚点的指示信息; 或者,
所述接入节点接收所述终端发送的随机接入请求之前, 还包括: 所述 接入节点向所述终端发送能力查询消息; 所述接入节点接收所述终端发送 的所述用户支持虚拟锚点的指示信息。
结合第三方面第三至第五种任意一种可能实现方式, 在第三方面的第 六中可能实现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏 基站或者高能力小小区基站或者其他网络节点。
本发明的第四方面提供了一种下行业务传输方法, 包括:
虚拟锚点接收核心网设备发送的下行数据;
所述虚拟锚点将所述下行数据发送给接入节点, 以使所述接入节点将 所述下行数据发送给终端。
在第四方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第四方面第一种可能实现方式, 在第四方面第二种可能实现方式 中, 所述虚拟锚点接收核心网设备发送的下行数据之前, 还包括:
所述虚拟锚点向所述接入节点发送切换请求, 所述切换请求携带所述 虚拟锚点的信息。
结合第四方面第一或第二种可能实现方式, 在第四方面的第三种可能 实现方式中,所述虚拟锚点接收核心网设备发送的下行数据之前,还包括: 所述虚拟锚点向所述终端发送切换命令, 所述切换命令携带所述虚拟 锚点的信息。
在第四方面的第四种可能实现方式中, 所述虚拟锚点接收核心网设备 发送的下行数据之前, 还包括: 所述虚拟锚点接收所述接入节点发送的建立虚拟锚点请求消息; 所述虚拟锚点向所述接入节点发送建立虚拟锚点响应消息。
结合第四方面第四种可能实现方式, 在第四方面的第五种可能实现方 式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力 小小区基站或者其他网络节点。
本发明的第五方面提供了一种接入节点, 包括:
接收模块, 用于接收所述终端发送的上行数据;
发送模块,用于将所述接收模块接收到的所述上行数据发送给虚拟锚点, 以使所述虚拟锚点将所述上行数据发送给核心设备。
在第五方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第五方面的第一种可能实现方式, 在第五方面的第二种可能实现 方式中, 所述接收模块还用于: 接收终端发送的上行数据之前, 接收所述 虚拟锚点或源接入节点发送的切换请求, 所述切换请求携带所述虚拟锚点 的信息。
在第五方面的第三种可能实现方式中, 所述接收模块还用于: 接收终 端发送的上行数据之前, 接收所述终端发送的随机接入请求;
所述发送模块还用于: 向所述终端发送随机接入响应 RAR。
结合第五方面的第三种可能实现方式, 在第五方面的第四种可能实现 方式中, 所述发送模块还用于: 向所述终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建立虚拟锚点请求消息;
所述接收模块还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。
结合第五方面第三或第四种可能实现方式, 在第五方面的第五种可能 实现方式中, 所述接收模块接收所述随机接入请求中携带所述终端支持虚 拟锚点的指示信息; 或者,
所述接收模块接收所述终端发送的随机接入请求之前, 还包括: 所述 发送模块向所述终端发送能力查询消息; 所述接收模块接收所述终端发送 的所述终端支持虚拟锚点的指示信息。 结合第第五方面第三至第五种任意一种可能实现方式, 在第五方面的 第六种可能实现方式中, 所述接入节点为小小区基站, 所述虚拟锚点为宏 基站或者高能力小小区基站或者其他网络节点。
本发明的第六方面提供了一种虚拟锚点, 包括:
接收模块, 用于接收接入节点发送的终端的上行数据;
发送模块, 用于将所述接收模块接收的所述上行数据发送给核心网设 备。
在第六方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第六方面第一种可能实现方式, 在第六方面第二种可能实现方式 中, 所述接收模块接收接入节点发送的终端的上行数据之前, 所述发送模 块向所述接入节点发送切换请求, 所述切换请求携带所述虚拟锚点的信 息。
结合第六方面第一或第二种可能实现方式, 在第六方面第三种可能实 现方式中, 所述接收模块接收接入节点发送的终端的上行数据之前, 所述 发送模块向所述终端发送切换命令, 所述切换命令携带所述虚拟锚点为所 述初始接入节点的指示消息。
在第六方面的第四种可能实现方式中, 所述接收模块还用于: 接收接 入节点发送的终端的上行数据之前, 接收所述接入节点发送的建立虚拟锚 点请求消息;
所述发送模块还用于: 向所述接入节点发送建立虚拟锚点响应消息。 结合第六方面第四种可能实现方式, 在第六方面第五种可能实现方式 中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小 小区基站。
本发明第第七方面提供了一种接入节点, 包括:
接收模块, 用于接收虚拟锚点发送的来自核心网设备的下行数据; 发送模块, 用于将所述接收模块接收到的所述下行数据发送给终端。 在第七方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第七方面的第一种可能实现方式, 在第七方面的第二种可能实现 方式中, 所述接收模块还用于: 接收虚拟锚点发送的来自核心网设备的下 行数据之前, 接收所述虚拟锚点或源接入节点发送的切换请求, 所述切换 请求携带所述虚拟锚点的信息。
结合第七方面的第二种可能实现方式, 在第七方面的第三种可能实现 方式中, 接收虚拟锚点发送的来自核心网设备的下行数据之前, 接收所述 终端发送的随机接入请求;
所述发送模块还用于: 向所述终端发送随机接入响应 RAR。
在第七方面的第四种可能实现方式中, 所述发送模块还用于: 向所述 终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建立虚拟锚点请求 消息;
所述接收模块还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。
结合第七方面第三至第五种任意一种可能实现方式, 在第七方面第五 种可能实现方式中, 所述接收模块接收接入节点发送的终端的上行数据之 前, 所述发送模块向所述终端发送切换命令, 所述切换命令携带所述虚拟 锚点为所述初始接入节点的指示消息。
结合第七方面第三、 第四或第五种可能实现方式, 在第七方面的第六 种可能实现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基 站或者高能力小小区基站或者其他网络节点。
本发明的第八方方面提供一种虚拟锚点, 包括:
接收模块, 用于接收核心网设备发送的下行数据;
发送模块, 用于将所述下行数据发送给接入节点, 以使所述接入节点 将所述下行数据发送给终端。
在第八方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第八方面第一种可能实现方式, 在第八方面第二种可能实现方式 中, 所述接收模块接收核心网设备发送的下行数据之前, 所述发送模块向 所述接入节点发送切换请求, 所述切换请求携带所述虚拟锚点的信息。 结合第八方面第一或第二种可能实现方式, 在第八方面第三种可能实 现方式中, 所述接收模块接收核心网设备发送的下行数据之前, 所述发送 模块向所述终端发送切换命令, 所述切换命令携带所述虚拟锚点的信息。
在第八方面的第四种可能实现方式中, 所述接收模块还用于: 接收核 心网设备发送的下行数据之前, 接收所述接入节点发送的建立虚拟锚点请 求消息;
所述发送模块还用于: 向所述接入节点发送建立虚拟锚点响应消息。 结合第八方面的第四种可能实现方式, 在第八方面的第五种可能实现 方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能 力小小区基站或者其他网络节点。
本发明的第九方面提供了一种接入节点, 包括:
接收器, 用于接收所述终端发送的上行数据;
发送器, 用于将所述接收器接收到的所述上行数据发送给虚拟锚点, 以 使所述虚拟锚点将所述上行数据发送给核心设备。
在第九方面的第一种可能实现方式中,所述虚拟锚点为所述终端的初始 接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多次 切换操作后的当前服务节点。
结合第九方面的第一种可能实现方式, 在第九方面的第二种可能实现方 式中, 所述接收器还用于: 接收终端发送的上行数据之前, 接收所述虚拟 锚点或源接入节点发送的切换请求, 所述切换请求携带所述虚拟锚点的信 息。
在第九方面的第三种可能实现方式中, 所述接收器还用于: 接收终端 发送的上行数据之前, 接收所述终端发送的随机接入请求;
所述发送器还用于: 向所述终端发送随机接入响应 RAR。
结合第九方面的第三种可能实现方式中, 在第九方面的第四种可能实 现方式中, 所述发送器还用于: 向所述终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建立虚拟锚点请求消息;
所述接收器还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。 结合第九方面第三至第五种任意一种可能实现方式, 在第九方面的第 五种可能实现方式中, 所述接收器接收所述随机接入请求中携带所述终端 支持虚拟锚点的指示信息; 或者,
所述接收器接收所述终端发送的随机接入请求之前, 还包括: 所述发 送器向所述终端发送能力查询消息; 所述接收器接收所述终端发送的所述 终端支持虚拟锚点的指示信息。
结合第九方面第三、 第四或第五种可能实现方式, 在第九方面的第六 种可能实现方式中, 所述接入节点为小小区基站, 所述虚拟锚点为宏基站 或者高能力小小区基站或者其他网络节点。
本发明的第十方面提供了一种虚拟锚点, 包括:
接收器, 用于接收接入节点发送的终端的上行数据;
发送器, 用于将所述接收器接收的所述上行数据发送给核心网设备。 在第十方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的初 始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或多 次切换操作后的当前服务节点。
结合第十方面的第一种可能实现方式, 在第十方面的第二种可能实现 方式中, 所述接收器接收接入节点发送的终端的上行数据之前, 所述发送 器向所述接入节点发送切换请求, 所述切换请求携带所述虚拟锚点的信 息。
结合第十方面第一或第二种可能实现方式, 在第十方面的第三种可能 实现方式中, 所述接收器接收接入节点发送的终端的上行数据之前, 所述 发送器向所述终端发送切换命令, 所述切换命令携带所述虚拟锚点为所述 初始接入节点的指示消息。
在第十方面的第四种可能实现方式中, 所述接收器还用于: 接收接入节 点发送的终端的上行数据之前, 接收所述接入节点发送的建立虚拟锚点请 求消息;
所述发送器还用于: 向所述接入节点发送建立虚拟锚点响应消息。 结合第十方面的第四种可能性,在第十方面的第五种可能是实现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区 基站。 本发明的第十一方面提供一种接入节点, 包括:
接收器, 用于接收虚拟锚点发送的来自核心网设备的下行数据; 发送器, 用于将所述接收器接收到的所述下行数据发送给终端。
在第十一方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的 初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或 多次切换操作后的当前服务节点。
结合第十一方面第一种可能实现方式, 在第十一方面第二种可能实现 方式中, 所述接收器还用于: 接收虚拟锚点发送的来自核心网设备的下行 数据之前, 接收所述虚拟锚点或源接入节点发送的切换请求, 所述切换请 求携带所述虚拟锚点的信息。
在第十一方面的第三种可能实现方式中, 所述接收器还用于: 接收虚 拟锚点发送的来自核心网设备的下行数据之前, 接收所述终端发送的随机 接入请求;
所述发送器还用于: 向所述终端发送随机接入响应 RAR。
结合第十一方面的第三种可能实现方式, 在第十一方面的第四种可能 实现方式中,所述发送器还用于:向所述终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建立虚拟锚点请求消息;
所述接收器还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。
结合第十一方面第三或第四种可能实现方式, 在第十一方面的第五种 可能实现方式中, 所述接收器接收的所述随机接入请求中携带所述用户支 持虚拟锚点的指示信息; 或者,
所述接收器接收所述终端发送的随机接入请求之前, 还包括: 所述发 送器向所述终端发送能力查询消息; 所述接收器接收所述终端发送的所述 用户支持虚拟锚点的指示信息。
结合第十一方面第三至第五种任意一种可能实现方式, 在第十一方面 的第六中可能实现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点 为宏基站或者高能力小小区基站或者其他网络节点。
本发明的第十二方面提供了一种虚拟锚点, 其特征在于, 包括: 接收器, 用于接收核心网设备发送的下行数据; 发送器, 用于将所述下行数据发送给接入节点, 以使所述接入节点将 所述下行数据发送给终端。
在第十二方面的第一种可能实现方式中, 所述虚拟锚点为所述终端的 初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行单次或 多次切换操作后的当前服务节点。
结合第十二方面第一种可能实现方式, 在第十二方面第二种可能实现 方式中, 所述接收器接收核心网设备发送的下行数据之前, 所述发送器向 所述接入节点发送切换请求, 所述切换请求携带所述虚拟锚点的信息。
结合第十二方面第一种或第二种可能实现方式, 在第十二方面的第三 种可能实现方式中, 所述接收器接收核心网设备发送的下行数据之前, 所 述发送器向所述终端发送切换命令, 所述切换命令携带所述虚拟锚点的信 息。
在第十二方面的第四种可能实现方式中, 所述接收器还用于: 接收核 心网设备发送的下行数据之前, 接收所述接入节点发送的建立虚拟锚点请 求消息;
所述发送器还用于: 向所述接入节点发送建立虚拟锚点响应消息。 结合第十二方面第四种可能实现方式, 在第十二方面的第五种可能实 现方式中, 所述接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高 能力小小区基站或者其他网络节点。 附图说明
实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见 地, 下面描述中的附图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为本发明一个实施例提供的上行业务传输的方法流程图;
图 2为本发明一个实施例提供的上行业务传输方法流程图; 图 3为本发明一个实施例的上行数据传输路径流程图;
图 4为本发明实施例一的信令流程图; 图 5为本发明实施例一的信令流程图;
图 6为本发明一个实施例提供的下行业务传输方法流程图;
图 7为本发明一个实施例提供的下行业务传输方法流程图;
图 8为本发明一个实施例的下行数据传输路径流程图;
图 9为本发明一个实施例的信令流程图;
图 10为本发明一个实施例的信令流程图;
图 11为本发明一个实施例中接入节点的结构示意图;
图 12为本发明一个实施例中虚拟锚点的结构示意图;
图 13为本发明一个实施例中接入节点的结构示意图;
图 14为本发明一个实施例中虚拟锚点的结构示意图;
图 15为本发明一个实施例中接入节点的结构示意图;
图 16为本发明一个实施例中虚拟锚点的结构示意图;
图 17为本发明一个实施例中接入节点的结构示意图;
图 18为本发明一个实施例中虚拟锚点的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
本文中描述的技术可用于各种通信系统,例如全球移动通信系统(Global System for Mobi le communications ,简称为: GSM ) ,码分多址 ( Code Division Multiple Access , 简称为: CDMA )系统, 时分多址( Time Division Multiple Access , 简称为: TDMA ) 系统, 宽带码分多址 ( Wideband Code Division Multiple Access Wireless ,简称为: WCDMA ) ,频分多址( Freq細 cy Division Multiple Addressing , 简称为: FDMA ) 系统, 正交频分多址 ( Orthogonal Frequency-Division Multiple Access , 简称为: 0FDMA ) 系统, 单载波 FDMA ( SC-FDMA ) 系统, 通用分组无线业务 ( General Packet Radio Service, 简 称为: GPRS ) 系统, 长期演进(Long Term Evolution, 简称为: LTE ) 系统, 以及其他此类通信系统。
本申请中涉及的接入节点可以是 GSM 或 CDMA 中的基站 ( Base Transceiver Station, 简称为: BTS ) , 也可以是 WCDMA中的基站( NodeB ) , 还可以是 LTE中的演进型基站( NodeB或 eNB或 e-NodeB, evolutional Node B ) , 本申请并不限定。
本申请中涉及的终端, 可以是无线终端也可以是有线终端, 无线终端可 以是指向用户提供语音和 /或数据连通性的设备,具有无线连接功能的手持式 设备、 或连接到无线调制解调器的其他处理设备。 无线终端可以经无线接入 网 (例如, Radio Access Network, 简称为: RAN ) 与一个或多个核心网进行 通信, 无线终端可以是移动终端, 如移动电话(或称为 "蜂窝" 电话)和具 有移动终端的计算机, 例如, 可以是便携式、 袖珍式、 手持式、 计算机内置 的或者车载的移动装置, 它们与无线接入网交换语言和 /或数据。 例如, 个人 通信业务(Personal Communication Service, 简称为: PCS ) 电话、 无绳电 话、 会话发起协议(SIP )话机、 无线本地环路 ( Wireless Local Loop, 简 称为: WLL )站、 个人数字助理(Personal Digital Assistant , 简称为: PDA ) 等设备。 无线终端也可以称为系统、 订户单元( Subscriber Unit ) 、 订户站 ( Subscriber Station ) , 移动站 ( Mobi le Station ) 、 移动台 ( Mobi le ) 、 远程站 ( Remote Station ) 、 接入节点 ( Access Point ) 、 远程终端 ( Remote Terminal ) 、 接入终端 ( Access Terminal ) 、 用户终端 ( User Terminal ) 、 用户代理( User Agent )、终端( User Device )、或用户装备( User Equipment )。
图 1为本发明一个实施例提供的上行业务传输方法流程图,如图 1所示, 该方法包括:
步骤 101 : 接入节点接收终端发送的上行数据;
其中, 接入节点可以为终端由初始接入节点执行单次或多次切换操作 后的当前服务节点,可选的,接入节点可以是微基站 (Smal l Cel l evolved Node B,简称为: SC eNB) , 或者, 还可以是宏基站 (Macro Cel l evolved Node B, 简称为: MC eNB ) 等网络设备。 接入节点接收终端准备上传到核 心网络设备的数据。
步骤 102: 接入节点将所述上行数据发送给虚拟锚点, 以使所述虚拟 锚点将所述上行数据发送给核心网设备。 可选的, 虚拟锚点可以为终端的初始接入节点, 或者, 还可以是宏基站 或者高能力小小区基站或者其他网络节点。 在一种实施场景中, 如果接入节 点为终端的当前服务节点, 则虚拟锚点可以为终端的初始接入节点; 在另一 种实施场景中, 如果接入节点为 SC eNB (Smal l Cel l evolved Node B,简 称为: 微基站), 则虚拟锚点可以是宏基站或者高能力小小区基站或者其他 网络节点。 接入节点接收到终端需要上传的上行数据, 然后将数据转发给终 端的虚拟锚点, 由虚拟锚点将终端需要上传的数据上传到核心网设备。 也就 是说, 终端的上行数据所经过的路径为终端至接入节点至虚拟锚点至核心网 设备, 参照图 3所示, 这些上行数据无需经由接入节点和核心网设备之间的 S1接口, 因此, 在 UE由于移动性而发生接入节点变更的时候, 无需修改 S1 接口, 可以降低 S1接口的负载, 保证用户业务的正常进行。 其中, 核心网 设备可以是移动管理实体 (Mobi l ity Management Entity, 简称为: MME), 还可以是服务网关 (Service GateWay , 简称为: SGW ) 等设备。
本实施例提供的上行业务传输方法, 终端将数据传送到核心网络设备 的过程中, 依次通过接入节点和虚拟锚点, 由虚拟锚点将数据发送到核心 网络设备, 因此, 降低了接入节点与核心网络设备之间的 S1接口负载, 保证了终端业务的正常进行。
图 2为本发明一个实施例提供的上行业务传输方法流程图, 如图 5所 示, 该方法包括:
步骤 201 : 虚拟锚点接收接入节点发送的终端的上行数据;
其中, 虚拟锚点可以为用户初始接入的节点, 或者, 还可以是宏基站 或者高能力小小区基站或者其他网络节点。接入节点可以为终端由初始接入 节点执行单次或多次切换操作后的当前服务节点, 可选的, 在一种实施场 景中,如果接入节点为终端的当前服务节点, 则虚拟锚点可以为终端的初始 接入节点; 在另一种实施场景中, 如果接入节点为 SC eNB (Smal l Cel l evolved Node B,简称为: 微基站), 则虚拟锚点可以是宏基站或者高能力 小小区基站或者其他网络节点。 虚拟锚点会接收接入节点转发的终端需要 上传的上行数据。
步骤 202: 虚拟锚点将上行数据发送给核心网设备。
具体地, 虚拟锚点接收到接入节点转发的终端需上传的上行数据后, 会 继续将数据发送到核心网路设备。 也就是说, 终端上行数据所经过的路径为 终端至接入节点至虚拟锚点至核心网络设备, 参照图 3所示, 这些上行数据 无需经由接入节点和核心网设备之间的 S1接口, 因此, 在 UE由于移动性而 发生接入节点变更的时候, 无需修改 S1接口, 可以降低 S1接口的负载, 保 证用户业务的正常进行。 其中, 核心网设备可以是移动管理实体 (Mobi l ity Management Entity,简称为: MME) ,还可以是服务网关( Service GateWay, 简称为: SGW ) 等设备。
本实施例提供的上行业务传输方法, 终端依次通过接入节点和虚拟锚 点将数据传送到核心网络设备的过程中, 是通过虚拟锚点将接收到的数据 直接发送到核心网络设备, 因此, 降低了接入节点与核心网路设备之间的 S1接口负载, 保证了终端业务的正常进行。
图 4为本发明实施例一的信令流程图, 如图 4所示, 本实施例提供的实 施场景中, 终端的初始接入节点为虚拟锚点, 终端由初始接入节点经过单次 或多次切换后接入的当前服务节点为图 1所示实施例中的 "接入节点" , 该 方法包括:
5301、 终端首先进入接入节点 1的覆盖范围内, 与接入节点 1完成初始 连接建立;
需要说明的是, 该终端为支持虚拟锚点进行上行数据传输的设备。
5302、接入节点 1建立与核心网之间的 S1接口信令, 然后终端与接入节 点 1以及核心网络设备之间进行正常的业务数据的传输;
本实施例中, 可以将接入节点 1确定为虚拟锚点。
5303、 当终端移动到接入节点 2的覆盖范围时, 终端会将此时的测量报 告发送给接入节点 1 , 接入节点 1接收到终端的测量报告后, 根据测量报告, 就会把终端切换到接入节点 2;
具体地, 接入节点 1首先向接入节点 2发送将终端切换到接入节点 2的 请求, 其中请求消息中携带终端的虚拟锚点为接入节点 1的消息, 接入节点 1在接收到接入节点 2 的切换响应消息后, 就会向终端发送切换命令, 并在 切换命令中携带接入节点 1为终端虚拟锚点的消息。
5304、 终端向接入节点 2执行接入的过程, 接入完成后, 终端进行正常 的上行数据传输; 具体地, 上行数据的传输路径为: 终端至接入节点至虚拟锚点至核心网 络设备;
需要说明的是, 完成切换后, 接入节点 2为终端的当前服务节点, 即图 1所示实施例中所涉及的 "接入节点" ;
可选的, 接入节点可以为小小区基站, 虚拟锚点可以为宏基站或者高能 力小小区基站或者其他网络节点。 也可以是接入节点是宏基站, 虚拟锚点为 小小区基站。
本实施例提供的信令流程图, 初始接入节点即为终端传输数据过程中 的虚拟锚点, 终端将上传的数据依次通过接入节点和虚拟锚点传送到核心 网络设备, 终端将数据传送到核心网络设备的过程中, 都会最终经由虚拟 锚点将数据发送到核心网络设备,降低了接入点与核心网络设备之间的 S 1 接口负载, 保证了终端业务的正常进行。
由于制造终端的厂商的多样性, 终端支持虚拟锚点的能力有所不同, 即, 终端有可能不支持虚拟锚点, 因此, 在使用虚拟锚点进行数据传输之前, 接 入点需要首先确认终端是否支持虚拟锚点。
图 5为本发明实施例一的信令流程图, 如图 5所示, 本实施例提供的 实施场景中,终端的虚拟锚点为宏基站或者高能力小小区基站或者其他网络 节点。
5401、 终端首先进入接入节点的覆盖范围, 并向接入节点发送随机接 入请求, 也就是通常所说的消息 1 , 接入节点接收到终端的随机接入请求 后, 如果解析正确, 就会反馈给终端用户随机接入响应消息, 也就是通常 说的消息 2;
5402、 终端收到接入节点反馈的用户随机接入响应后, 就会发送给接 入节点无线资源控制 (Radio Resource Control , 简称为: RRC ) 连接建 立请求消息, 也就是通常所说的消息 3 , 接入节点接收到用户的无线资源 控制连接建立请求信息后, 向终端发送无线资源控制连接建立完成消息, 也就是通常所说的消息 4;
需要说明的是, 此时就可以认为终端接入成功;
5403、 接入完成后, 接入节点会向终端发送终端能力查询消息, 判断 终端是否支持虚拟锚点, 接入节点接收到终端的能力消息后, 就可根据终 端的能力消息判断终端是否支持虚拟锚点;
具体地, 如果终端不支持虚拟锚点, 则按照已有的技术进行数据的传 输, 如果确定终端支持虚拟锚点, 就会使用虚拟锚点进行数据的传送, 所 述虚拟锚点为不同于当前接入节点的宏基站或者为高能力的微基站。
S404、 接入节点向虚拟锚点发送请求建立虚拟锚点的消息;
S405、 接入节点接收到虚拟锚点的响应消息后, 会向终端发送重配置 消息, 指示终端应用新的参数, 所述新的参数可以包括安全参数等, 同时 虚拟锚点向核心网发送终端 1的路径变更消息, 将虚拟锚点接入到终端的 数据传输过程中, 当虚拟锚点接收到核心网的路径变更响应消息后, 就可 为终端进行正常的上行数据传输。
可选的,终端也可以采用主动向接入节点发送自身支持虚拟锚点的消息, 具体地, 终端可以在初始接入的消息 3或者消息 1中增加终端支持虚拟锚点 的消息, 以让接入节点确定终端是否可支持虚拟锚点。
可选的, 接入节点为小小区基站, 虚拟锚点为宏基站或者高能力小小区 基站或者其他网络节点。 也可以是接入节点是宏基站, 虚拟锚点为小小区基 站。
本实施例提供的信令流程图, 接入节点会确定终端是否支持虚拟锚点, 如果终端不支持虚拟锚点, 则会按照已有技术进行数据的传输, 如果终端支 持虚拟锚点, 就会将虚拟锚点接入到终端的数据传输过程中, 终端的数据依 次通过接入节点和虚拟锚点传送到核心网络设备, 在终端将数据发送到核心 网络设备的过程中, 虚拟锚点和核心网之间的 S1接口信令不会变, 降低了接 入点与核心网络设备之间的 S1接口负载, 并保证了终端业务的正常进行。
图 6为本发明一个实施例提供的下行业务传输方法流程图,如图 6所示, 该方法包括:
步骤 501 : 接入节点接收虚拟锚点发送的来自核心网设备的下行数据; 其中,接入节点可以为终端由初始接入节点执行单次或多次切换操作 后的当前服务节点, 可选的, 接入节点可以是 SC eNB (Smal l Cel l evolved Node B,简称为: 微基站), 或者, 还可以是 MC eNB ( Macro Cel l evolved Node B, 简称为: 宏基站) 等网络设备。 虚拟锚点可以为终端的初始接入 节点, 或者, 还可以是宏基站或者高能力小小区基站或者其他网络节点。 在 一种实施场景中,如果接入节点为终端的当前服务节点, 则虚拟锚点可以为 终端的初始接入节点;在另一种实施场景中,如果接入节点为 SC eNB (Smal l Cel l evolved Node B,简称为: 微基站), 则虚拟锚点可以是宏基站或者高 能力小小区基站或者其他网络节点。 核心网设备会将终端需要的数据下发 给虚拟锚点, 再通过虚拟锚点将终端需要的数据下发给终端的当前接入节 点。
步骤 502: 接入节点将所述下行数据发送给终端。
接入节点将接收到的虚拟锚点转发的终端需要的下行数据, 发送给终 端。 也就是说终端所需的下行数据所经过的路径为核心网路设备至虚拟锚 点至接入点至终端, 如图 7所示, 这些下行的数据无需经过接入节点和核 心网络设备之间的 S1接口, 因此, 在 UE由于移动性而发生接入节点变更的 时候, 无需修改 S1接口, 可以有效降低 S1接口的负载, 保证用户业务的正 常进行。 其中, 核心网设备可以是移动管理实体 (Mobi l ity Management. Ent i y, 简称为: MME) , 还可以是服务网关 ( Service GateWay , 简称为: SGW ) 等设备。
本实施例提供的下行业务传输方法, 核心网络设备将数据传送到终端 的过程中,依次通过虚拟锚点和接入节点,由接入节点将数据发送到终端, 因此, 有效降低了接入节点与核心网络设备之间的 S 1接口负载, 保证了 终端业务的正常进行。
图 8为本发明一个实施例提供的下行业务传输方法流程图,如图 8所示, 该方法包括:
步骤 601 : 虚拟锚点接收核心网设备发送的下行数据;
其中, 虚拟锚点可以为用户初始接入的节点, 或者, 还可以是宏基站 或者高能力小小区基站或者其他网络节点。核心网设备会将终端需要的数据 下发给虚拟锚点。
步骤 602: 虚拟锚点将所述下行数据发送给接入节点, 以使所述接入 节点将所述下行数据发送给终端。
其中,接入节点可以为终端由初始接入节点执行单次或多次切换操作 后的当前服务节点, 可选的, 在一种实施场景中, 如果接入节点为终端的 当前服务节点, 则虚拟锚点可以为终端的初始接入节点;在另一种实施场景 中, 如果接入节点为 SC eNB (Smal l Cel l evolved Node B,简称为: 微基 站), 则虚拟锚点可以是宏基站或者高能力小小区基站或者其他网络节点。具 体地, 虚拟锚点将接收的核心网发送的终端需要的下行数据转发给接入节 点, 经由接入节点将下行数据发送给终端。 也就是说, 终端所需的数据所 经过的路径为核心网络设备至虚拟锚点至接入节点至终端,参照图 7所示, 这些下行数据传送过程中无需经过接入节点与核心网络设备之间的 S1 接 口, 在 UE由于移动性而发生接入节点变更的时候, 无需修改 S1接口, 可以 有效降低 S1 接口的负载, 保证用户业务的正常进行。 其中, 核心网设备 可以是移动管理实体 (Mobi l ity Management Ent ity, 简称为: MME), 还 可以是服务网关 (Service GateWay, 简称为: SGW ) 等设备。
本实施例提供的下行业务传输方法, 核心网络设备发送终端所需的下行 数据依次通过虚拟锚点和接入节点, 在数据的传送过程中, 在数据的传送过 程中, 核心网路设备会直接将数据发送给虚拟锚点, 最终由接入节点将数据 传送给终端, 降低了接入节点域核心网络设备之间的 S1接口负载, 保证了终 端业务的正行进行。
图 9为本发明一个实施例提供的信令流程图, 如图 9所示, 本实施例提 供的实施场景中, 终端的初始接入节点为虚拟锚点, 终端由初始接入节点经 过单次或多次切换后接入的当前服务节点为图 6 所示实施例中的 "接入节 点" , 该方法包括:
S701、 终端首先进入接入节点 1的覆盖范围内, 与接入节点 1完成初始 连接建立;
需要说明的是, 该终端为支持虚拟锚点进行下行数据传输的设备。
5702、接入节点 1建立与核心网之间的 S1接口信令, 然后终端与接入节 点 1以及核心网络设备之间进行正常的业务数据的传输;
本实施例中, 可以将接入节点 1确定为虚拟锚点。
5703、 当终端移动到接入节点 2的覆盖范围时, 终端会将此时的测量报 告发送给接入节点 1 , 接入节点 1接收到终端的测量报告后, 根据测量报告, 就会把终端切换到接入节点 2;
具体地, 接入节点 1首先向接入节点 2发送将终端切换到接入节点 2的 请求, 其中请求消息中携带终端的虚拟锚点为接入节点 1的消息, 接入节点 1在接收到接入节点 2 的切换响应消息后, 就会向终端发送切换命令, 并在 切换命令中携带接入节点 1为终端虚拟锚点的消息。
S704、 终端向接入节点 2执行接入的过程, 接入完成后, 终端进行正常 的下行数据传输;
具体地, 下行数据的传输路径为: 核心网络设备至虚拟锚点至接入节点 至终端;
需要说明的是, 完成切换后, 接入节点 2为终端的当前服务节点, 即图 6所示实施例中所涉及的 "接入节点" ;
可选的, 接入节点为小小区基站, 虚拟锚点为宏基站或者高能力小小区 基站或者其他网络节点。 也可以是接入节点是宏基站, 虚拟锚点为小小区基 站。
本实施例提供的信令流程图, 初始接入节点即为终端传输数据过程中 的虚拟锚点, 核心网络设备将终端所需要的下行数据依次经过虚拟锚点和 接入节点传送给终端, 核心网络设备将数据传送到终端的过程中, 都会首 先经过虚拟锚点将数据转发给接入节点, 因此, 降低了接入节点与核心网 络设备之间的 S1接口负载, 保证了终端业务的正常进行。
由于制造终端的厂商的多样性, 终端支持虚拟锚点的能力有所不同, 即, 终端有可能不支持虚拟锚点, 因此, 在使用虚拟锚点进行数据传输之前, 接 入点需要首先确认终端是否支持虚拟锚点。
图 10为本发明另一个实施例的信令流程图, 如图 10所示, 本实施例 提供的实施场景中, 终端的虚拟锚点为宏基站或者高能力小小区基站或者 其他网络节点。
5801、 终端首先进入接入节点的覆盖范围, 并向接入节点发送随机接 入请求, 也就是通常所说的消息 1 , 接入节点接收到终端的随机接入请求 后, 如果解析正确, 就会反馈给终端用户随机接入响应消息, 也就是通常 说的消息 2;
5802、 终端收到接入节点反馈的用户随机接入响应后, 就会发送给接 入节点无线资源控制 (Radio Resource Control , 简称为: RRC ) 连接建 立请求消息, 也就是通常所说的消息 3 , 接入节点接收到用户的无线资源 控制连接建立请求信息后, 向终端发送无线资源控制连接建立完成消息, 也就是通常所说的消息 4;
需要说明的是, 此时就可以认为终端接入成功;
5803、 接入完成后, 接入节点会向终端发送终端能力查询消息, 判断 终端是否支持虚拟锚点, 接入节点接收到终端的能力消息后, 就可根据终 端的能力消息判断终端是否支持虚拟锚点;
具体地, 如果终端不支持虚拟锚点, 则按照已有的技术进行数据的传 输, 如果确定终端支持虚拟锚点, 就会使用虚拟锚点进行数据的传送, 所 述虚拟锚点为不同于当前接入节点的宏基站或者为高能力的微基站;
5804、 接入节点向虚拟锚点发送请求建立虚拟锚点的消息;
S805、 接入节点接收到虚拟锚点的响应消息后, 会向终端发送重配置 消息, 指示终端应用新的参数, 所述新的参数可以包括安全参数等, 同时 虚拟锚点向核心网发送终端 1的路径变更消息, 将虚拟锚点接入到终端的 数据传输过程中, 当虚拟锚点接收到核心网的路径变更响应消息后, 就可 为终端进行正常的下行数据传输;
具体地, 下行数据的传输路径为: 核心网络设备至虚拟锚点至接入节点 至终端;
可选的,终端也可以采用主动向接入节点发送自身支持虚拟锚点的消息, 具体地, 终端可以在初始接入的消息 3或者消息 1中增加终端支持虚拟锚点 的消息, 以让接入节点确定终端是否可支持虚拟锚点。
可选的, 接入节点为小小区基站, 虚拟锚点为宏基站或者高能力小小区 基站或者其他网络节点。 也可以是接入节点是宏基站, 虚拟锚点为小小区基 站。
图 11为本发明一个实施例中接入节点的结构示意图, 如图 11所示, 该 接入节点包括包括接收模块 11和发送模块 12 , 其中接收模块 11用于接收所 述终端发送的上行数据;发送模块 12用于将所述接收模块接收到的所述上行 数据发送给虚拟锚点, 以使所述虚拟锚点将所述上行数据发送给核心设备。
具体地, 接收模块 11 接收到终端需要上传的上行数据, 然后发送模块 12将数据转发给终端的虚拟锚点, 由虚拟锚点将终端需要上传的数据上传到 核心网设备。 也就是说, 终端的上行数据无需经由接入节点和核心网设备之 间的 S1接口, 而是通过虚拟锚点将数据发送到核心网络设备, 因此, 在终端 由于移动性而发生接入节点变更的时候, 无需修改 S1接口, 可以降低 S1接 口的负载, 保证用户业务的正常进行。 其中, 核心网设备可以是移动管理 实体 (Mob i l i ty Management Enti ty, 简称为: MME) , 还可以是服务网关 ( Service GateWay, 简称为: SGW ) 等设备。
本实施例提供的接入节点, 为本发明实施例提供的上行业务传输方法 的执行设备, 其执行上行业务传输方法的具体过程可参见图 1、 图 2、 图 4和 图 5所示的方法实施例中的相关描述, 在此不再贅述。
本实施例提供的接入节点, 终端将数据传送到核心网络设备的过程 中,接入节点的发送模块会将接收模块接收到的终端需要上传的上行数据 发送给虚拟锚点, 由虚拟锚点将数据发送到核心网络设备, 因此, 降低了 接入节点与核心网络设备之间的 S1接口负载, 保证了终端业务的正常进 行。
图 12为本发明一个实施例中虚拟锚点的结构示意图, 如图 12所示, 该 虚拟锚点包括接收模块 21和发送模块 22 ,其中接收模块 21用于接收接入节 点发送的终端的上行数据;发送模块 22用于将所述接收模块接收的所述上 行数据发送给核心网设备。
具体地, 终端会将上行数据发送给接入节点, 然后接入节点会将终端的 上行数据发送给接收模块 21 , 接收模块 21接收到接入节点转发的终端需上 传的上行数据后, 发送模块 22会将数据发送到核心网路设备。 也就是说, 终 端的上行数据会通过接入节点发送给虚拟锚点, 通过虚拟锚点将接收到的终 端的上行数据传送到核心网络设备, 这些上行数据无需经由接入节点和核心 网设备之间的 S1接口,因此,在终端由于移动性而发生接入节点变更的时候, 无需修改 S1接口, 可以降低 S1接口的负载, 保证用户业务的正常进行。 其 中, 核心网设备可以是移动管理实体 (Mob i l i ty Management Ent i ty , 简 称为: MME) , 还可以是服务网关 ( Service GateWay , 简称为: SGW ) 等设 备。
本实施例提供的虚拟锚点, 为本发明实施例提供的上行业务传输方法 的执行设备, 其执行上行业务传输方法的具体过程可参见图 2、 图 3、 图 4和 图 5所示的方法实施例中的相关描述, 在此不再贅述。
本实施例虚拟锚点, 终端会将上行数据发送给接入节点, 然后接入节 点将数据发送给虚拟锚点, 终端的数据是通过虚拟锚点将接收到的数据直 接发送到核心网络设备, 因此, 降低了接入节点与核心网路设备之间的 S1 接口负载, 保证了终端业务的正常进行。
图 13为本发明一个实施例中接入节点的结构示意图, 如图 13所示, 该 接入节点包括包括接收模块 31和发送模块 32,其中接收模块 31用于接收虚 拟锚点发送的来自核心网设备的下行数据;发送模块 32用于将所述接收模 块接收到的所述下行数据发送给终端。
具体地, 核心网设备会将终端需要的数据下发给虚拟锚点, 然后虚拟 锚点将数据发送给接收模块 31 ,然后发送模块 32会将接收模块 31接收到 的核心网络设备下发的数据发送给终端。 也就是说终端所需的下行数据所 经过的路径为核心网路设备至虚拟锚点至接入节点至终端, 这些下行的数 据无需经过接入节点和核心网络设备之间的 S1接口, 因此, 在 UE由于移 动性而发生接入节点变更的时候, 无需修改 S1接口, 可以有效降低 S1接口 的负载, 保证用户业务的正常进行。 其中, 核心网设备可以是移动管理实 体 (Mobi l i ty Management Ent i ty , 筒称为: MME) , 还可以是月良务网关 ( Service GateWay, 简称为: SGW ) 等设备。
本实施例提供的接入节点, 为本发明实施例提供的下行业务传输方法 的执行设备, 其执行上行业务传输方法的具体过程可参见图 6、 图 7、 图 9和 图 10所示的方法实施例中的相关描述, 在此不再贅述。
本实施例提供的接入节点, 核心网络设备将数据传送到终端的过程 中,依次通过虚拟锚点和接入节点, 由接入节点将数据发送到终端, 因此, 有效降低了接入节点与核心网络设备之间的 S1接口负载, 保证了终端业 务的正常进行。
图 14为本发明一个实施例中虚拟锚点的结构示意图, 如图 14所示, 该 虚拟锚点包括接收模块 41和发送模块 42,其中接收模块 41接收核心网设备 发送的下行数据; 发送模块 42用于将所述下行数据发送给接入节点, 以使 所述接入节点将所述下行数据发送给终端。
具体地, 接收模块 41接收核心网络设备发送的终端需要的下行数据, 发送模块 42会将接收模块 41接收到的核心网络设备发送的终端需要的下 行数据发送给接入节点, 也就是说, 终端所需的数据所经过的路径为核心 网络设备至虚拟锚点至接入节点至终端, 这些下行数据传送过程中无需经 过接入节点与核心网络设备之间的 S1接口, 在 UE由于移动性而发生接入 节点变更的时候, 无需修改 S1接口, 可以有效降低 S1接口的负载, 保证用 户业务的正常进行。 其中, 核心网设备可以是移动管理实体 (Mobility Management Entity, 简称为: MME) ,还可以是服务网关( Service GateWay, 简称为: SGW) 等设备。
本实施例提供的虚拟锚点, 为本发明实施例提供的下行业务传输方法 的执行设备, 其执行上行业务传输方法的具体过程可参见图 7、 图 8、 图 9和 图 10所示的方法实施例中的相关描述, 在此不再贅述。
本实施例虚拟锚点, 核心网络设备发送终端所需的下行数据依次通过虚 拟锚点和接入节点, 在数据的传送过程中, 在数据的传送过程中, 核心网路 设备会直接将数据发送给虚拟锚点, 最终由接入节点将数据传送给终端, 降 低了接入节点域核心网络设备之间的 S1接口负载,保证了终端业务的正行进 行。
图 15为本发明一个实施例中接入节点的结构示意图, 如图 15所示, 该设备包括: 接收器 51和发送器 52, 其中, 接收器 51用于接收所述终端 发送的上行数据; 发送器 52用于将所述接收器接收到的所述上行数据发送 给虚拟锚点, 以使所述虚拟锚点将所述上行数据发送给核心设备。
具体地, 接收器 51接收到终端需要上传的上行数据, 然后发送器 52将 数据转发给终端的虚拟锚点, 由虚拟锚点将终端需要上传的数据上传到核心 网设备。 也就是说, 终端的上行数据无需经由接入节点和核心网设备之间的 S1接口, 而是通过虚拟锚点将数据发送到核心网络设备, 因此, 在终端由于 移动性而发生接入节点变更的时候, 无需修改 S1接口, 可以降低 S1接口的 负载, 保证用户业务的正常进行。 其中, 核心网设备可以是移动管理实体 ( obi 1 ity Management Entity,筒称为: MME) ,还可以是服务网关( Service
GateWay, 简称为: SGW) 等设备。
本发明实施例接入节点, 为本发明实施例提供的上行业务传输方法的执 行设备, 其执行上行业务传输方法的具体过程可参见图 1、 图 2、 图 4和图 5 所示的方法实施例中的相关描述, 在此不再贅述。
本实施例提供的接入节点, 终端将数据传送到核心网络设备的过程 中,接入节点的发送器会将接收器接收到的终端需要上传的上行数据发送 给虚拟锚点, 由虚拟锚点将数据发送到核心网络设备, 因此, 降低了接入 节点与核心网络设备之间的 S1接口负载, 保证了终端业务的正常进行。
图 16为本发明一个实施例中虚拟锚点的结构示意图, 如图 16所示, 该设备包括: 接收器 61和发送器 62 , 其中, 接收器 61用于接收接入节点 发送的终端的上行数据; 发送器 62 用于将所述接收器接收的所述上行数 据发送给核心网设备。
具体地, 终端会将上行数据发送给接入节点, 然后接入节点会将终端的 上行数据发送给接收器 61 , 接收器 61接收到接入节点转发的终端需上传的 上行数据后, 发送器 62会将数据发送到核心网路设备。 也就是说, 终端的上 行数据会通过接入节点发送给虚拟锚点, 通过虚拟锚点将接收到的终端的上 行数据传送到核心网络设备, 这些上行数据无需经由接入节点和核心网设备 之间的 S1接口, 因此, 在终端由于移动性而发生接入节点变更的时候, 无需 修改 S1接口, 可以降低 S1接口的负载, 保证用户业务的正常进行。 其中, 核心网设备可以是移动管理实体 (Mobi l i ty Management Ent ity , 简称为:
MME) , 还可以是服务网关 (Service GateWay, 简称为: SGW ) 等设备。
本发明实施例虚拟锚点, 为本发明实施例提供的上行业务传输方法的执 行设备, 其执行上行业务传输方法的具体过程可参见图 2、 图 3、 图 4和图 5 所示的方法实施例中的相关描述, 在此不再贅述。
本实施例虚拟锚点, 终端会将上行数据发送给接入节点, 然后接入节 点将数据发送给虚拟锚点, 终端的数据是通过虚拟锚点将接收到的数据直 接发送到核心网络设备, 因此, 降低了接入节点与核心网路设备之间的 S 1 接口负载, 保证了终端业务的正常进行。
图 17为本发明一个实施例中接入节点的结构示意图, 如图 17所示, 该设备包括: 接收器 71和发送器 72 , 其中, 接收器 61用于接收虚拟锚点 发送的来自核心网设备的下行数据; 发送器 62 用于将所述接收器接收到 的所述下行数据发送给终端。
具体地, 核心网设备会将终端需要的数据下发给虚拟锚点, 然后虚拟 锚点将数据发送给接收器 71 ,然后发送器 72会将接收器 71接收到的核心 网络设备下发的数据发送给终端。 也就是说终端所需的下行数据所经过的 路径为核心网路设备至虚拟锚点至接入节点至终端, 这些下行的数据无需 经过接入节点和核心网络设备之间的 S1接口, 因此, 在终端由于移动性而 发生接入节点变更的时候, 无需修改 S1接口, 可以有效降低 S1接口的负载, 保证用户业务的正常进行。 其中, 核心网设备可以是移动管理实体 (Mobi l i ty Management Ent i ty ,简称为: MME) ,还可以是服务网关( Servi ce Gat eWay , 简称为: SGW )等设备。 本实施例接入节点, 为本发明实施例提 供的下行业务传输方法的执行设备, 其执行上行业务传输方法的具体过程可 参见图 6、 图 7、 图 9和图 10所示的方法实施例中的相关描述, 在此不再贅 述。
本实施例提供的接入节点, 核心网络设备将数据传送到终端的过程 中,依次通过虚拟锚点和接入节点, 由接入节点将数据发送到终端, 因此, 有效降低了接入节点与核心网络设备之间的 S 1接口负载, 保证了终端业 务的正常进行。
图 18为本发明一个实施例中虚拟锚点的结构示意图, 如图 18所示, 该设备包括: 接收器 81和发送器 82 , 其中, 接收器 81用于接收核心网设 备发送的下行数据; 发送器 82 用于将所述下行数据发送给接入节点, 以 使所述接入节点将所述下行数据发送给终端。
具体地,接收器 81接收核心网络设备发送的终端需要的下行数据,发 送器 82会将接收器 81接收到的核心网络设备发送的终端需要的下行数据 发送给接入节点, 也就是说, 终端所需的数据所经过的路径为核心网络设 备至虚拟锚点至接入节点至终端, 这些下行数据传送过程中无需经过接入 节点与核心网络设备之间的 S 1接口, 在终端由于移动性而发生接入节点变 更的时候, 无需修改 S1接口, 可以有效降低 S 1接口的负载, 保证用户业 务的正常进行。 其中, 核心网设备可以是移动管理实体(Mob i l i t y Management Ent i ty , 筒称为: MME) ,还可以是服务网关( Service GateWay , 简称为: SGW ) 等设备。
本实施例虚拟锚点, 为本发明实施例提供的下行业务传输方法的执行 设备, 其执行上行业务传输方法的具体过程可参见图 7、 图 8、 图 9和图 10 所示的方法实施例中的相关描述, 在此不再贅述。
本实施例提供的虚拟锚点, 核心网络设备发送终端所需的下行数据依次 通过虚拟锚点和接入节点, 在数据的传送过程中, 在数据的传送过程中, 核 心网路设备会直接将数据发送给虚拟锚点, 最终由接入节点将数据传送给终 端, 降低了接入节点域核心网络设备之间的 S1接口负载, 保证了终端业务的 正行进行。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种上行业务传输方法, 其特征在于, 包括:
接入节点接收终端发送的上行数据;
所述接入节点将所述上行数据发送给虚拟锚点, 以使所述虚拟锚点将 所述上行数据发送给核心网设备。
2、 根据权利要求 1 所述的方法, 其特征在于, 所述虚拟锚点为所述 终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行 单次或多次切换操作后的当前服务节点。
3、 根据权利要求 2 所述的方法, 其特征在于, 所述接入节点接收终 端发送的上行数据之前, 还包括:
所述接入节点接收所述虚拟锚点或源接入节点发送的切换请求, 所述 切换请求携带所述虚拟锚点的信息。
4、 根据权利要求 1 所述的方法, 其特征在于, 所述接入节点接收终 端发送的上行数据之前, 还包括:
所述接入节点接收所述终端发送的随机接入请求;
所述接入节点向所述终端发送随机接入响应 RAR。
5、 根据权利要求 4所述的方法, 其特征在于, 所述接入节点向所述 终端发送随机接入响应 RAR之后, 还包括:
所述接入节点向所述虚拟锚点发送建立虚拟锚点请求消息;
所述接入节点接收所述虚拟锚点发送的建立虚拟锚点响应消息。
6、 根据权利要求 4或 5所述的方法, 其特征在于, 所述接入节点接 收的所述随机接入请求中携带所述终端支持虚拟锚点的指示信息; 或者, 所述接入节点接收所述终端发送的随机接入请求之前, 还包括: 所述 接入节点向所述终端发送能力查询消息; 所述接入节点接收所述终端发送 的所述终端支持虚拟锚点的指示信息。
7、 根据权利要求 4-6任一项所述的方法, 其特征在于, 所述接入节 点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或者其他 网络节点。
8、 一种上行业务传输方法, 其特征在于, 包括:
虚拟锚点接收接入节点发送的终端的上行数据; 所述虚拟锚点将所述上行数据发送给核心网设备。
9、 根据权利要求 8 所述的方法, 其特征在于, 所述虚拟锚点为所述 终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行 单次或多次切换操作后的当前服务节点。
10、 根据权利要求 9所述的方法, 其特征在于, 所述虚拟锚点接收接 入节点发送的终端的上行数据之前, 还包括:
所述虚拟锚点向所述接入节点发送切换请求, 所述切换请求携带所述 虚拟锚点的信息。
11、 根据权利要求 9或 10所述的方法, 其特征在于, 所述虚拟锚点 接收接入节点发送的终端的上行数据之前, 还包括:
所述虚拟锚点向所述终端发送切换命令, 所述切换命令携带所述虚拟 锚点为所述初始接入节点的指示消息。
12、 根据权利要求 8所述的方法, 其特征在于, 所述虚拟锚点接收接 入节点发送的终端的上行数据之前, 还包括:
所述虚拟锚点接收所述接入节点发送的建立虚拟锚点请求消息; 所述虚拟锚点向所述接入节点发送建立虚拟锚点响应消息。
13、 根据权利要求 12 所述的方法, 其特征在于, 所述接入接节点为 小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站。
14、 一种下行业务传输方法, 其特征在于, 包括:
接入节点接收虚拟锚点发送的来自核心网设备的下行数据; 所述接入节点将所述下行数据发送给终端。
15、 根据权利要求 14所述的方法, 其特征在于, 所述虚拟锚点为所 述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执 行单次或多次切换操作后的当前服务节点。
16、 根据权利要求 15 所述的方法, 其特征在于, 所述接入节点接收 虚拟锚点发送的来自核心网设备的下行数据之前, 还包括:
所述接入节点接收所述虚拟锚点或源接入节点发送的切换请求, 所述 切换请求携带所述虚拟锚点的信息。
17、 根据权利要求 14所述的方法, 其特征在于, 所述接入节点接收 虚拟锚点发送的来自核心网设备的下行数据之前, 还包括: 所述接入节点接收所述终端发送的随机接入请求;
所述接入节点向所述终端发送随机接入响应 RAR。
18、 根据权利要求 17 所述的方法, 其特征在于, 所述接入节点向所 述终端发送随机接入响应 RAR之后, 还包括: 所述接入节点向所述虚拟锚 点发送建立虚拟锚点请求消息; 所述接入节点接收所述虚拟锚点发送的建 立虚拟锚点响应消息。
19、 根据权利要求 17或 18所述的方法, 其特征在于, 所述接入节点 接收的所述随机接入请求中携带所述用户支持虚拟锚点的指示信息; 或 者, 所述接入节点接收所述终端发送的随机接入请求之前, 还包括: 所述 接入节点向所述终端发送能力查询消息; 所述接入节点接收所述终端发送 的所述用户支持虚拟锚点的指示信息。
20、 根据权利要求 17-19任一项所述的方法, 其特征在于, 所述接入 接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或者 其他网络节点。
21、 一种下行业务传输方法, 其特征在于, 包括:
虚拟锚点接收核心网设备发送的下行数据;
所述虚拟锚点将所述下行数据发送给接入节点, 以使所述接入节点将 所述下行数据发送给终端。
22、 根据权利要求 21 所述的方法, 其特征在于, 所述虚拟锚点为所 述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执 行单次或多次切换操作后的当前服务节点。
23、 根据权利要求 22 所述的方法, 其特征在于, 所述虚拟锚点接收 核心网设备发送的下行数据之前, 还包括: 所述虚拟锚点向所述接入节点 发送切换请求, 所述切换请求携带所述虚拟锚点的信息。
24、 根据权利要求 22或 23所述的方法, 其特征在于, 所述虚拟锚点 接收核心网设备发送的下行数据之前, 还包括: 所述虚拟锚点向所述终端 发送切换命令, 所述切换命令携带所述虚拟锚点的信息。
25、 根据权利要求 21所述的方法, 其特征在于, 所述虚拟锚点接收核心网 设备发送的下行数据之前,还包括: 所述虚拟锚点接收所述接入节点发送的建立 虚拟锚点请求消息; 所述虚拟锚点向所述接入节点发送建立虚拟锚点响应消息。
26、 根据权利要求 25所述的方法, 其特征在于, 所述接入接节点为小小 区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或者其他网络节点。
27、 一种接入节点, 其特征在于, 包括:
接收模块, 用于接收所述终端发送的上行数据;
发送模块,用于将所述接收模块接收到的所述上行数据发送给虚拟锚点, 以使所述虚拟锚点将所述上行数据发送给核心设备。
28、 根据权利要求 27所述的接入节点, 其特征在于, 所述虚拟锚点为所 述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行 单次或多次切换操作后的当前服务节点。
29、 根据权利要求 28所述的接入节点, 其特征在于, 所述接收模块还用 于: 接收终端发送的上行数据之前, 接收所述虚拟锚点或源接入节点发送的 切换请求, 所述切换请求携带所述虚拟锚点的信息。
30、 根据权利要求 29所述的接入节点, 其特征在于, 所述接收模块还用 于: 接收终端发送的上行数据之前, 接收所述终端发送的随机接入请求; 所述发送模块还用于: 向所述终端发送随机接入响应 RAR。
31、根据权利要求 30所述的接入节点, 其特征在于, 所述发送模块还用于: 向所述终端发送随机接入响应 RAR之后,向所述虚拟锚点发送建立虚拟锚点请求 消息; 所述接收模块还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消息。
32、 根据权利要求 30或 31所述的接入节点, 其特征在于, 所述接收模 块接收所述随机接入请求中携带所述终端支持虚拟锚点的指示信息; 或者, 所述接收模块接收所述终端发送的随机接入请求之前, 还包括: 所述发送模 块向所述终端发送能力查询消息; 所述接收模块接收所述终端发送的所述终 端支持虚拟锚点的指示信息。
33、 根据权利要求 30-32任一项所述的接入节点, 其特征在于, 所述接 入节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或者 其他网络节点。
34、 一种虚拟锚点, 其特征在于, 包括:
接收模块, 用于接收接入节点发送的终端的上行数据;
发送模块,用于将所述接收模块接收的所述上行数据发送给核心网设备。
35、 根据权利要求 34所述的虚拟锚点, 其特征在于, 所述虚拟锚点为所 述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行 单次或多次切换操作后的当前服务节点。
36、 根据权利要求 35所述的虚拟锚点, 其特征在于, 所述接收模块接收 接入节点发送的终端的上行数据之前, 所述发送模块向所述接入节点发送切 换请求, 所述切换请求携带所述虚拟锚点的信息。
37、 根据权利要求 35或 36所述的虚拟锚点, 其特征在于, 所述接收模 块接收接入节点发送的终端的上行数据之前, 所述发送模块向所述终端发送 切换命令,所述切换命令携带所述虚拟锚点为所述初始接入节点的指示消息。
38、 根据权利要求 34所述的虚拟锚点, 其特征在于, 所述接收模块还用 于: 接收接入节点发送的终端的上行数据之前, 接收所述接入节点发送的建 立虚拟锚点请求消息; 所述发送模块还用于: 向所述接入节点发送建立虚拟 错点响应消息。
39、 根据权利要求 38所述的虚拟锚点, 其特征在于, 所述接入接节点为 小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站。
40、 一种接入节点, 其特征在于: 包括:
接收模块, 用于接收虚拟锚点发送的来自核心网设备的下行数据; 发送模块, 用于将所述接收模块接收到的所述下行数据发送给终端。
41、 根据权利要求 40所述的接入节点, 其特征在于, 所述虚拟锚点为所 述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点执行 单次或多次切换操作后的当前服务节点。
42、 根据权利要求 41所述的接入节点, 其特征在于, 所述接收模块还用 于: 接收虚拟锚点发送的来自核心网设备的下行数据之前, 接收所述虚拟锚 点或源接入节点发送的切换请求, 所述切换请求携带所述虚拟锚点的信息。
43、 根据权利要求 42 所述的接入节点, 其特征在于, 所述接收模块 还用于: 接收虚拟锚点发送的来自核心网设备的下行数据之前, 接收所述 终端发送的随机接入请求;
所述发送模块还用于: 向所述终端发送随机接入响应 RAR。
44、 根据权利要求 40 所述的接入节点, 其特征在于, 所述发送模块 还用于: 向所述终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建 立虚拟锚点请求消息; 所述接收模块还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。
45、 根据权利要求 43或 44所述的接入节点, 其特征在于, 所述接收 模块接收的所述随机接入请求中携带所述用户支持虚拟锚点的指示信息; 或者,
所述接收模块接收所述终端发送的随机接入请求之前, 还包括: 所述 发送模块向所述终端发送能力查询消息; 所述接收模块接收所述终端发送 的所述用户支持虚拟锚点的指示信息。
46、 根据权利要求 43-45任一项所述的接入节点, 其特征在于, 所述 接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站 或者其他网络节点。
47、 一种虚拟锚点, 其特征在于, 包括:
接收模块, 用于接收核心网设备发送的下行数据;
发送模块, 用于将所述下行数据发送给接入节点, 以使所述接入节点 将所述下行数据发送给终端。
48、 根据权利要求 47 所述的虚拟锚点, 其特征在于, 所述虚拟锚点 为所述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节 点执行单次或多次切换操作后的当前服务节点。
49、 根据权利要求 48 所述的虚拟锚点, 其特征在于, 所述接收模块 接收核心网设备发送的下行数据之前, 所述发送模块向所述接入节点发送 切换请求, 所述切换请求携带所述虚拟锚点的信息。
50、 根据权利要求 48或 49所述的虚拟锚点, 其特征在于, 所述接收 模块接收核心网设备发送的下行数据之前, 所述发送模块向所述终端发送 切换命令, 所述切换命令携带所述虚拟锚点的信息。
5 1、 根据权利要求 47 所述的虚拟锚点, 其特征在于, 所述接收模块 还用于: 接收核心网设备发送的下行数据之前, 接收所述接入节点发送的 建立虚拟锚点请求消息;
所述发送模块还用于: 向所述接入节点发送建立虚拟锚点响应消息。
52、 根据权利要求 51 所述的虚拟锚点, 其特征在于, 所述接入接节 点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或者其他 网络节点。
53、 一种接入节点, 其特征在于, 包括:
接收器, 用于接收所述终端发送的上行数据;
发送器, 用于将所述接收器接收到的所述上行数据发送给虚拟锚点, 以 使所述虚拟锚点将所述上行数据发送给核心设备。
54、 根据权利要求 53所述的接入节点, 其特征在于, 所述虚拟锚点为 所述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节点 执行单次或多次切换操作后的当前服务节点。
55、 根据权利要求 54所述的接入节点, 其特征在于, 所述接收器还 用于: 接收终端发送的上行数据之前, 接收所述虚拟锚点或源接入节点发 送的切换请求, 所述切换请求携带所述虚拟锚点的信息。
56、 根据权利要求 53 所述的接入节点, 其特征在于, 所述接收器还 用于:接收终端发送的上行数据之前,接收所述终端发送的随机接入请求; 所述发送器还用于: 向所述终端发送随机接入响应 RAR。
57、 根据权利要求 56 所述的接入节点, 其特征在于, 所述发送器还 用于: 向所述终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建立 虚拟锚点请求消息;
所述接收器还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。
58、 根据权利要求 56或 57所述的接入节点, 其特征在于, 所述接收 器接收所述随机接入请求中携带所述终端支持虚拟锚点的指示信息; 或 者,
所述接收器接收所述终端发送的随机接入请求之前, 还包括: 所述发 送器向所述终端发送能力查询消息; 所述接收器接收所述终端发送的所述 终端支持虚拟锚点的指示信息。
59、 根据权利要求 56-58任一项所述的接入节点, 其特征在于, 所述 接入节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或 者其他网络节点。
60、 一种虚拟锚点, 其特征在于, 包括:
接收器, 用于接收接入节点发送的终端的上行数据; 发送器, 用于将所述接收器接收的所述上行数据发送给核心网设备。
61、 根据权利要求 60 所述的虚拟锚点, 其特征在于, 所述虚拟锚点 为所述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节 点执行单次或多次切换操作后的当前服务节点。
62、 根据权利要求 61 所述的虚拟锚点, 其特征在于, 所述接收器接 收接入节点发送的终端的上行数据之前, 所述发送器向所述接入节点发送 切换请求, 所述切换请求携带所述虚拟锚点的信息。
63、 根据权利要求 61或 62所述的虚拟锚点, 其特征在于, 所述接收 器接收接入节点发送的终端的上行数据之前, 所述发送器向所述终端发送 切换命令, 所述切换命令携带所述虚拟锚点为所述初始接入节点的指示消 息。
64、 根据权利要求 60 所述的虚拟锚点, 其特征在于, 所述接收器还 用于: 接收接入节点发送的终端的上行数据之前, 接收所述接入节点发送 的建立虚拟锚点请求消息;
所述发送器还用于: 向所述接入节点发送建立虚拟锚点响应消息。
65、 根据权利要求 64所述的虚拟锚点, 其特征在于, 所述接入接节 点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站。
66、 一种接入节点, 其特征在于: 包括:
接收器, 用于接收虚拟锚点发送的来自核心网设备的下行数据; 发送器, 用于将所述接收器接收到的所述下行数据发送给终端。
67、 根据权利要求 66 所述的接入节点, 其特征在于, 所述虚拟锚点 为所述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节 点执行单次或多次切换操作后的当前服务节点。
68、 根据权利要求 67 所述的接入节点, 其特征在于, 所述接收器还 用于: 接收虚拟锚点发送的来自核心网设备的下行数据之前, 接收所述虚 拟锚点或源接入节点发送的切换请求, 所述切换请求携带所述虚拟锚点的 信息。
69、 根据权利要求 66 所述的接入节点, 其特征在于, 所述接收器还 用于: 接收虚拟锚点发送的来自核心网设备的下行数据之前, 接收所述终 端发送的随机接入请求; 所述发送器还用于: 向所述终端发送随机接入响应 RAR。
70、 根据权利要求 69 所述的接入节点, 其特征在于, 所述发送器还 用于: 向所述终端发送随机接入响应 RAR之后, 向所述虚拟锚点发送建立 虚拟锚点请求消息;
所述接收器还用于: 接收所述虚拟锚点发送的建立虚拟锚点响应消 息。
71、 根据权利要求 69或 70所述的接入节点, 其特征在于, 所述接收 器接收的所述随机接入请求中携带所述用户支持虚拟锚点的指示信息; 或 者,
所述接收器接收所述终端发送的随机接入请求之前, 还包括: 所述发 送器向所述终端发送能力查询消息; 所述接收器接收所述终端发送的所述 用户支持虚拟锚点的指示信息。
72、 根据权利要求 69-71任一项所述的接入节点, 其特征在于, 所述 接入接节点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站 或者其他网络节点。
73、 一种虚拟锚点, 其特征在于, 包括:
接收器, 用于接收核心网设备发送的下行数据;
发送器, 用于将所述下行数据发送给接入节点, 以使所述接入节点将 所述下行数据发送给终端。
74、 根据权利要求 73 所述的虚拟锚点, 其特征在于, 所述虚拟锚点 为所述终端的初始接入节点, 所述接入节点为所述终端由所述初始接入节 点执行单次或多次切换操作后的当前服务节点。
75、 根据权利要求 74所述的虚拟锚点, 其特征在于, 所述接收器接 收核心网设备发送的下行数据之前, 所述发送器向所述接入节点发送切换 请求, 所述切换请求携带所述虚拟锚点的信息。
76、 根据权利要求 74或 75所述的虚拟锚点, 其特征在于, 所述接收 器接收核心网设备发送的下行数据之前, 所述发送器向所述终端发送切换 命令, 所述切换命令携带所述虚拟锚点的信息。
77、 根据权利要求 73 所述的虚拟锚点, 其特征在于, 所述接收器还 用于: 接收核心网设备发送的下行数据之前, 接收所述接入节点发送的建 立虚拟锚点请求消息;
所述发送器还用于: 向所述接入节点发送建立虚拟锚点响应消息。
78、 根据权利要求 77 所述的虚拟锚点, 其特征在于, 所述接入接节 点为小小区基站, 所述虚拟锚点为宏基站或者高能力小小区基站或者其他 网络节点。
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