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Data flow scheduling method and apparatus under long term evolution network

A scheduling method and technology of a scheduling device, applied in the field of communication, can solve problems such as waste of resources, inability to ensure fairness of traditional data packet scheduling, and failure to consider the impact of hard handover on QoS of multimedia streams, and achieve the effect of reducing the impact of QoS.

Inactive Publication Date: 2014-09-10
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] However, although the two-layer downlink scheduling algorithm can guarantee a strict delay upper limit and ensure the QoS of multimedia streams, the amount of data predicted linearly is greater than the amount of data actually needed to be transmitted, which will lead to waste of resources and cannot guarantee the quality of traditional data packets. Scheduling is fair, traditional data packets are Best Effort (BE) data packets and background (Background, BK) data packets
And when the multimedia data flow requires a lot of resources, the BE and BK data flow will not be transmitted, and at the same time, the impact of hard handover on the QoS of the multimedia flow is not considered

Method used

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  • Data flow scheduling method and apparatus under long term evolution network
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  • Data flow scheduling method and apparatus under long term evolution network

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Embodiment 1

[0066] figure 1 It is a flow chart of the data flow scheduling method under the LTE network provided by Embodiment 1 of the present invention. The method in this embodiment is applicable to the downlink scheduling of data streams at the media access control layer in an LTE network. The method is executed by an apparatus for scheduling data streams under the LTE network configured in the eNodeB, and the apparatus is usually implemented in the form of hardware and / or software. The method of the present embodiment comprises the steps:

[0067] Step 110, put each data packet into each data queue of the media access control layer according to the priority of the data packet, so as to form at least two priority data queues;

[0068] In step 110, the priority is preferably a QCI of the data packet. There are many considerations for the priority, preferably considering the real-time requirement of data transmission. For example, the data queues forming at least two priorities may ...

Embodiment 2

[0077] figure 2 It is a flow chart of the data flow scheduling method under the LTE network provided by Embodiment 2 of the present invention. The embodiment of the present invention is further optimized on the basis of the above-mentioned embodiment, referring to figure 2 , in this embodiment, when the user equipment enters the warning area, the operation of updating the transmission deadline of the data packets in at least one priority data queue to the time point in the current scheduling cycle specifically includes the following steps:

[0078] Step 131, according to the signal strength of the serving cell and the neighboring cell where the user equipment is located, periodically identify whether the user equipment enters the warning area to be triggered cell handover;

[0079] The operation of step 131 specifically includes the following steps:

[0080] Step 131a, calculating the average signal strength of the serving cell and neighboring cells where the user equipmen...

Embodiment 3

[0086] image 3 It is a flow chart of the data flow scheduling method under the LTE network provided by the third embodiment of the present invention. The embodiment of the present invention is further optimized on the basis of the above-mentioned embodiment, referring to image 3 , put each data packet into each data queue of the media access control layer according to the QCI of the data packet, so as to form the operation of the data queue of different QCIs specifically include the following steps:

[0087] Step 310, identifying a multimedia data queue and a traditional data queue according to the QCI of the data packet, wherein the multimedia data queue includes an Internet Protocol IP voice data queue and / or a video data queue;

[0088] Step 320, put each data packet into the multimedia data queue and the traditional data queue of the media access control layer;

[0089] The data flow scheduling method under the LTE network provided by the embodiment of the present inve...

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Abstract

The embodiments of the invention provide a data flow scheduling method and apparatus under a long term evolution (LTE) network. The method comprises: according to priorities of data packets, placing the data packets in each data queue of a media access control layer to form a data queue with at least two priorities; according to the priorities of the data queue, calculating transmission cut-off time of the data packets in the data queue; when user equipment enters a caution area, updating the transmission cut-off time of the data packets in data queue with at least one priority to be a time point within a current scheduling period; and distributing resource blocks to the data packets respectively according to the priorities of the data queue and the transmission cut-off time of the data packets in the data queen. According to the embodiments of the invention, fair scheduling of multimedia flows and conventional data flows is realized, and at the same time, the influence exerted by hard switching on the service quality of the multimedia flows can also be reduced.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method and device for scheduling data streams in a Long Term Evolution (LTE) network. Background technique [0002] With the increasing demand for multimedia services in mobile communications, in order to further improve the uplink and downlink data transmission rate and multimedia service quality, the 3rd Generation Partnership Project (3GPP) proposed the next-generation broadband multimedia communication standard, namely LTE. Currently, more than 20 operators around the world have committed to using LTE. Since the downlink scheduling algorithm of the evolved base station (Evolved Node Base Station, referred to as eNodeB) under the LTE network plays an important role in the management of wireless resource allocation and the guarantee of the quality of service (QoS), it has always been a subject of domestic and foreign scholars and institutions. important...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04W72/08H04W72/12
Inventor 刘欣刘倩邹子轩
Owner HUAWEI TECH CO LTD
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