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Data transmission method and device

A data sending method and data row technology, which are applied in the field of communication, can solve problems such as heavy signaling load, and achieve the effect of solving high signaling load

Inactive Publication Date: 2017-11-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Embodiments of the present invention provide a method and device for sending data, so as to at least solve the problem in the related art that the signaling load of data transmission is relatively large during QoS control

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  • Data transmission method and device

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Experimental program
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Embodiment 1

[0078] The following provides a method for QoS authorization and guarantee for applications in QoS control according to an embodiment of the present invention. In the next-generation wireless communication system, after the terminal establishes a protocol data unit (Protocol Data Unit, PDU) session, it performs QoS authorization and guarantee procedures for the application, such as Figure 5 As shown, it mainly includes the following steps:

[0079] In step S501, the UE establishes a PDU session with the network.

[0080] After the PDU session is established, the control plane functional entity CP authorizes the default QoS parameters for the PDU session, including QoS Class Identifier (QoS Class Identifier, QCI for short) and Allocation and Retention Priority (ARP (optional), where , QCI is used to represent the indicators that provide specific data forwarding behavior (such as packet loss rate, delay, etc.) Preemption, the application can preempt resources and / or prioritie...

Embodiment 2

[0098] A method for sending downlink data by a UP based on an embodiment of the present invention is provided below according to an embodiment of the present invention. Such as Figure 6 As shown, the method includes the following steps:

[0099] In step S601, the UP receives a downlink IP data packet, a non-IP PDU or an Ethernet frame (collectively referred to as a downlink data unit here).

[0100] In step S602, the UP matches the downlink data unit according to the flow description, executes the corresponding policy, and marks the data unit according to the QoS policy.

[0101] In step S603, the UP sends downlink data to the AN, and marks a flow label in the downlink data unit.

[0102] In step S604, the AN determines the corresponding wireless logical channel (that is, the radio bearer) according to the value of the flow label.

[0103] Step S605, the AN sends the downlink data unit to the UE through the radio bearer.

[0104] The AN may or may not provide the UP-marke...

Embodiment 3

[0107] According to the embodiments of the present invention, a method for sending uplink data by a UE based on the embodiments of the present invention is provided below. Such as Figure 7 As shown, the method includes the following steps:

[0108] Step S701, when the UE needs to send an uplink data unit (including IP data packet, non-IP PDU or Ethernet frame), determine the radio bearer (ie radio logical channel) corresponding to the uplink data unit according to the obtained upstream flow description.

[0109] In step S702, the UE sends an uplink data unit by using a corresponding radio bearer. Wherein, the UE may mark the flow label in each uplink data unit, or may not mark the data unit with the flow label.

[0110]In step S703, if the flow label is marked in the uplink data unit, then the AN will check according to the stored correspondence between the flow label and the wireless logical channel, and if the check is successful, execute step S704. If no flow label is m...

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Abstract

The invention provides a data transmission method and device. The method comprises the following steps: receiving a downlink data unit of an application carrying a flow table sent by a user plane functional entity by an access network AN, wherein the flow table is used for uniquely identifying a data flow of the application in a protocol data unit PDU session; and transmitting a downlink data packet to user equipment UE by the AN through a radio bearer corresponding to the flow label. The data transmission method provided by the invention solves the problem of high signaling load of data transmission when the quality of service is controlled in the related technology.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data sending method and device. Background technique [0002] In the 4G (Four Generation, fourth-generation mobile communication technology) mobile communication system, the data streams with the same QoS (Quality of Service, Quality of Service) requirements are aggregated into bearers, and the user plane network elements such as base stations and gateways process QoS All take bearer as the minimum granularity. The main network elements involved in the 4G system QoS solution are as follows: figure 1 As shown, the functions of the main network elements are as follows: [0003] The terminal (User Equipment, referred to as UE) mainly accesses the 4G network through the wireless air interface and obtains services. The terminal exchanges information with the base station through the air interface, and communicates with the core Network mobility management entity interaction inf...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W28/24
CPCH04W28/24H04W28/08
Inventor 周晓云朱进国梁爽
Owner ZTE CORP