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Data transmission method and device

A data transmission method and joint transmission technology are applied in the field of data transmission methods and devices, and can solve the problems of inability to realize joint transmission or shunting of two-way access.

Active Publication Date: 2013-10-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem in the related art that joint transmission or splitting of subsequent two-way access cannot be realized, the present invention provides a data transmission method and device to at least solve the above-mentioned problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In this embodiment, the current network where the network element of the access network is located is set to be a 3GPP network, and this example will be described.

[0067] In this example, the 3GPP access network element receives the connection information of the multi-mode terminal on the WLAN network reported by the multi-mode terminal, and the 3GPP access network element offloads part or all of the transmission data of the multi-mode terminal to the WLAN network to realize multi-mode The modem terminal simultaneously transmits data through the combination of the 3GPP network and the WLAN network.

[0068] The 3GPP access network elements can be network element nodes of different 3GPP RAT access networks. For example, the radio access network element refers to eNB in ​​the LTE network; the radio access network element refers to RNC and NodeB (collectively referred to as RNS) in the UMTS network. ; In the GSM network, the radio access network elements refer to BSC and B...

Embodiment 2

[0081] In this example, the LTE access network element eNB also integrates the WiFi access point function, and the UE is a multi-mode mobile phone that supports LTE and WLAN. For the specific process of the data transmission process, please refer to Figure 4 .

[0082] In step S402, the UE is in a connected state on the LTE network, and establishes a connection bearer with the eNB for data transmission.

[0083] Step S404, the UE discovers the existence of a WLAN network (that is, the first WLAN network) through scanning, and accesses the WLAN network through an existing procedure to establish an association with the WLAN network.

[0084] In step S406, the UE sends the connection information of the WLAN network to the eNB through an uplink message, such as a measurement report message, which includes information such as the BSSID of the WLAN network and the established association identifier AID.

[0085] Step S408, after the eNB receives it, it judges that the BSSID corres...

Embodiment 3

[0090] In this example, the network side includes the UMTS access network RNS and the WLAN network access point AP, and the UE is a multi-mode mobile phone that supports UMTS network and WLAN. For the specific flow of the data transmission process, see Figure 5 .

[0091] In step S502, the UE discovers a WLAN network (that is, the first WLAN network) through scanning, completes access to the WLAN network through an existing procedure, and performs service data transmission.

[0092] Step S504 , the UE needs to establish a service connection in the UMTS network where it resides due to upper-layer service requirements, so the UE initiates connection establishment to the UMTS access network RNS through a normal radio resource control connection establishment process.

[0093] Step S506, the UE sends the connection information of the WLAN network to the RNC through an uplink message, such as a radio resource control connection establishment complete message (RRC Connection Setup ...

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Abstract

The invention discloses a data transmission method and device. The data transmission method comprises the following steps that an access-network network element receives the connection information of a multi-mode terminal in a first WLAN network, wherein the multi-mode terminal can at least be accessed to the network where the access-network network element is arranged and the first WLAN network; when the access-network network element judges that a current network and the first WLAN network can implement joint transmission, the access-network network element can distribute parts or all of transmitted data of the multi-mode terminal. According to the data transmission method and device, the problem that joint transmission or distribution cannot be achieved when two subsequent ways are accessed is solved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data transmission method and device. Background technique [0002] With the continuous evolution of wireless communication technologies and standards, mobile packet services have been greatly developed, and the data throughput capability of a single terminal is constantly improving. Taking the Long Term Evolution (LTE) system as an example, it can support data transmission at a maximum downlink rate of 100 Mbps within a 20M bandwidth. In the subsequent enhanced LTE (LTE Advanced) system, the data transmission rate will be further improved, and even up to 1Gbps. [0003] The expansive growth of terminal data traffic has made the existing network resources gradually unable to cope, especially when the new generation of communication technologies (such as 3G and LTE) cannot be widely deployed on the network, followed by user rates and traffic The demand cannot be met, and the ...

Claims

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Application Information

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IPC IPC(8): H04W48/18H04W76/02
CPCH04W48/08H04W88/06H04W48/18
Inventor 和峰艾建勋王昕韩立锋
Owner ZTE CORP
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