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Device, system and method supporting base station data exchange

A technology of data exchange and base station, which is applied in the direction of data exchange network, digital transmission system, selection device of multiplexing system, etc., can solve the problem of inability to support X2 interface, etc., and achieve the effect of intercommunication

Inactive Publication Date: 2013-04-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When a PON network, such as GPON (or EPON) or next-generation GPON (or EPON) is used as the transmission network of the above-mentioned U-TRAN network or WiMAX network, the schematic diagram of PON-based mobile bearer is as follows figure 2 As shown, when the Optical Line Termination (OLT) receives a data packet from BS1, it can only continue to upload the data packet to the wireless gateway, and then the wireless gateway forwards the data packet to BS2, which is equivalent to the PON The network can only support the S1 interface (the interface between the BS and the wireless gateway), and cannot support the X2 interface (the interface between the BSs)

Method used

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  • Device, system and method supporting base station data exchange
  • Device, system and method supporting base station data exchange

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Experimental program
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Embodiment 1

[0048] A schematic structural diagram of a PON system supporting OLT local switching provided by this embodiment is as follows image 3 shown.

[0049] exist image 3 In the PON system shown, the OLT supports data packets transmitted by the X2 / R8 and S1 / R6 interfaces, and allocates PON service logic ports for transmission by the X2 / R8 and S1 / R6 interfaces to the BS. The OLT supports Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) monitoring, monitors the IP address assigned to the BS through DHCP, and establishes an IP forwarding table based on the IP address of the BS and the PON service logic port. The PON service logic port includes Incoming and outgoing PON service logic port, so as to realize local exchange of base station data, to support X2 / R8 interface. In addition, the OLT adopts the Layer 2 forwarding method to support the data packets transmitted by the S1 / R6 interface, and the OLT's Layer 2 service isolation function for user data ...

Embodiment 2

[0056] For the scheme 1 in the above-mentioned implementation one, the functional structure diagram of a kind of OLT provided by this embodiment is as follows Figure 4 As shown, it includes: a PON configuration unit, an IP forwarding unit, and further includes functional units such as a network side interface processing unit, a PON interface unit, a signaling processing unit, and a MAC forwarding unit. The following describes the functions of each functional unit:

[0057] The PON interface unit is used to implement the PON interface communication function between the OLT and the BS. For GPON and its next-generation GPON, it completes the PON physical medium-related layer function in the PON protocol stack and the GPON transmission convergence layer (GPON Transmission Converge, GTC) Framing sub-layer function; for EPON and its next-generation EPON, complete EPON physical layer and data link layer functions.

[0058] The network-side interface processing unit is configured to ...

Embodiment 3

[0101] The processing flow for establishing the IP forwarding table of the X2 / R8 interface by the signaling processing unit in the second embodiment provided by this embodiment is as follows: Figure 8 As shown, the following processing steps are included:

[0102] In step 81, the OLT configures PON service logic ports (such as GEM port / LLID) used by the DHCP channels of the source BS and the destination BS respectively.

[0103] In step 82, the source BS and the destination BS perform a DHCP address allocation process with the OLT respectively.

[0104] The source BS and the destination BS request an IP address or an IPv6 address prefix from the DHCP server respectively, and the DHCP server performs a DHCP address allocation or address prefix delegation process, and assigns an IP address or an IPv6 address prefix to the source BS and the destination BS respectively. Generally, the IPv6 address prefixes assigned by the DHCP server to different BSs are also different.

[0105...

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Abstract

A device, system and method for supporting data exchange of the base stations are provided in the invention. The method mainly includes: pre-establishing the IP forwarding table, receiving the data message sent by the source BS; according to the destination IP address, ingress physical port or ingress ONU port and ingress PON service logical port of the data message, inquiring the IP forwarding table, obtaining the egress physical port, egress PON service logical port of the data message, and forwarding the data message to the destination BS through the egress physical port or egress ONU port, egress PON service logical port. The invention realizes the PON network as the transmission network to support the X2 interface and a real direct exchange between the BSs rather than exchange through a wireless gateway.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a device, system and method for supporting base station data exchange. Background technique [0002] The architecture diagram of the Long Term Evolution (LTE) network is as follows figure 1 As shown, the LTE network adopts a two-layer flat network structure, in which the Mobility Management Entity (MME) manages the protocols of the control plane, such as the distribution of user terminal identifiers, security, authentication, and roaming control; the Serving Gateway (Serving Gateway) , S-GW) manage user plane protocols, such as storing user terminal context, encryption context, etc. [0003] In the universal terrestrial radio access network (Universal Terrestrial Radio AccessNetwork, E-UTRAN) structure, the enhanced Node B (enhanced NodeB, eNB) uses the X2 interface to transmit handover data packets; between eNodeB and A-GW S1 interface is adopted between...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/24H04L12/741H04L29/12H04Q11/00H04B10/272H04L45/74
CPCH04Q11/0071H04B10/272H04W92/20H04W80/04H04Q11/0067H04W8/26
Inventor 郑若滨
Owner HUAWEI TECH CO LTD
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