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Method and communication node for traffic aggregation

A technology of communication nodes and services, applied in wireless communication, digital transmission systems, electrical components, etc., can solve problems affecting standardization and product implementation, affecting WLAN networks, and high costs of WLAN networks.

Inactive Publication Date: 2017-12-08
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, solutions developed so far for 3GPP / WLAN convergence will impact WLAN networks, requiring processing, new functions and devices in WLAN networks to enable such 3GPP / WLAN convergence
Therefore, there is a disadvantage that costly modifications of the WLAN network (including the modification of numerous access nodes in the WLAN network) have to be carried out in order to realize the movement of traffic from the 3GPP network to the WLAN network according to known solutions
Such modifications may affect standardization and product implementation

Method used

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  • Method and communication node for traffic aggregation
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  • Method and communication node for traffic aggregation

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0084] Example 1: In this solution, after service aggregation is triggered, for example, when the UE detects a WLAN network with sufficient signal strength, a new interface that can be called SWua is established as the above-mentioned aggregation interface between eNB and UE . This interface is used to carry aggregated services that need to pass through the WLAN network transparently. Figure 8 The network architecture of this example is shown in, which involves UE 800, eNB 802 and WLAN node 804. in Figure 8 The node 804 shown as "WLAN" in is basically a WLAN terminal function, such as a WLAN AP, a WLAN AC, or another appropriate node or gateway in a WLAN network, or any combination of the aforementioned WLAN nodes and functions. The aggregate interface between eNB 802 and UE 800 is denoted as 806.

example 2

[0085] Example 2: As described above, the aggregation interface SWua can be implemented as a tunnel encapsulating an aggregation frame (for example, a MAC frame, an RLC frame, or a PDCP frame). The tunnel may be based on, for example, a layer 2 tunneling protocol or a layer 3 tunneling protocol, such as:

[0086] ·Layer 3 tunnel, for example, use any of the following:

[0087] -GTP-GPRS tunnel protocol,

[0088] -GRE-general routing encapsulation, and

[0089] -IPSec-Internet protocol security.

[0090] ·Layer 2 tunnel, for example, use any of the following:

[0091] -L2TP-Layer 2 Tunneling Protocol,

[0092] -L2TPv3-Layer 2 Tunneling Protocol Version 3, and

[0093] -L2F-Layer 2 forwarding protocol.

[0094] Almost all existing UEs capable of communicating with the WLAN infrastructure support all the tunnel mechanisms and protocols mentioned above. An example of the header structure that can be used for tunnels based on GTP is as Picture 9 As shown, where PDU represents a packet data un...

example 3

[0095] Example 3: In this example, one side of the interface is terminated at the UE, and the other side is at the eNB, and the traffic is forwarded transparently through the WLAN network and non-transparently by the ePDG. This example can be applied when the existing S2b network architecture is used for non-3GPP access to EPC (as shown in FIG. 1B), so that the UE is connected to the ePDG and the service is routed to the ePDG. Part of the implementation of this interface requires a new interface between the eNB and the ePDG, so that the ePDG can forward aggregated services to and from the eNB. Picture 10 The network architecture of this example is shown in, which also involves UE 800, eNB 802 and WLAN node 804, and also adds ePDG 808. This example therefore includes the first existing aggregated "sub-interface" 806A between UE 800 and ePDG 808 (e.g., implemented as an existing secure tunnel on the SWu interface described above), and the second between ePDG 808 and eNB 802 New ...

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PUM

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Abstract

A method and communication node (200) for providing traffic aggregation between a 3GPP network and a WLAN network when a wireless device (800) is connected to an access point (806) of the WLAN network. The communication node (200) establishes an aggregation interface (802) between the wireless device and a base station (804) of the 3GPP network for carrying aggregation traffic traversing the WLAN network transparently. The communication node (200) can then communicate data and / or messages over the WLAN network across the aggregation interface (202), without requiring any modifications or adaptions in the WLAN network. The communication node (200) may be the wireless device (800) or the base station (804).

Description

Technical field [0001] The present disclosure generally relates to methods and communication nodes that provide service aggregation between a 3GPP network and a WLAN network when a wireless device is connected to the WLAN network. Background technique [0002] In the field of radio communication in wireless networks, the terms "wireless equipment" and "user equipment (UE)" are commonly used, and are used interchangeably in this disclosure to mean that they can interact with wireless networks (for example, by the third generation). The 3GPP network defined by the Partnership Project (3GPP) communicates with a wireless local area network (referred to as WLAN network) (including receiving downlink signals sent from the serving base station or access node, and sending uplink signals to the base station or access node) Signal) any mobile phone, tablet or device. Furthermore, in this disclosure, the terms "base station" and "eNB" are used interchangeably to refer to any node of a wire...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04W84/12H04W88/06H04W92/10
CPCH04W76/16H04W84/12H04W88/06H04W92/10H04L12/4633H04L12/66H04W80/02H04W80/04
Inventor 欧美尔·特耶博伊卡罗·L·J·达席尔瓦杰瑞·维克伯格菲利普·麦斯塔诺夫
Owner TELEFON AB LM ERICSSON (PUBL)