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Method for flow control of Iub port based on scheduling state

A flow control and state technology, applied in the field of mobile communication, can solve the problems of frequent triggering of cache upper limit flow control, increased packet loss, cache backlog, etc., so as to avoid frequent triggering of cache upper limit flow control and emergency scheduling, and reduce the probability of packet loss. Effect

Active Publication Date: 2012-05-16
POTEVIO INFORMATION TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if you still continue to receive new data packets, it will lead to a buffer backlog, which will lead to frequent triggering of buffer upper limit flow control and emergency scheduling, and even increase the probability of packet loss

Method used

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  • Method for flow control of Iub port based on scheduling state
  • Method for flow control of Iub port based on scheduling state
  • Method for flow control of Iub port based on scheduling state

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0045] figure 1 It is a flow chart of a scheduling state-based Iub port flow control method provided by the present invention. Such as figure 1 As shown, the method includes the following steps:

[0046] Step 101, pre-configure the length T of the periodic timer FC_period , the length of the periodic timer T FC_period is a flow control cycle, and the end time of each flow control cycle is a cycle flow control point.

[0047] Step 102, recording the latest scheduling state of the current PQ queue at each subframe.

[0048] Step 103, every subframe judges whether the periodic timer expires, if so, then adopt the periodic timing trigger mode, and carry out the flow control of the Iub mouth according to the scheduling status recorded i...

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Abstract

The invention discloses a method for flow control of an Iub port based on a scheduling state. The method comprises the following steps of: recording the scheduling state at the time closest to the present moment of a present PQ sequence by each sub-frame; judging if a period timer is expired by each sub-frame; if yes, performing flow control on the Iub port in a periodic timing triggering mode according to the recorded scheduling state at the time closest to the present moment, and recording or updating the scheduling state corresponding to the flow control each time; and if not, performing the flow control on the Iub port in a specific event triggering mode according to the recorded scheduling state at the time closest to the present moment and the recorded or updated scheduling state corresponding to the flow control each time, and recording or updating the scheduling state corresponding to the flow control each time. According to the method disclosed by the invention, the probability of packet loss can be reduced.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a scheduling state-based Iub port flow control method. Background technique [0002] With the evolution of mobile communication technology from High Speed ​​Downlink Packet Access (HSDPA) technology to High Speed ​​Packet Access Plus (HSPA+) technology, data scheduling in HSPA+ technology is still performed on the base station (Node B) side, from the radio network controller (RNC ) sent by the MAC-d PDU (MAC-d Protocol Data Unit) needs to be buffered on the Node B side, waiting for the scheduling of the MAC-ehs entity in the Node B, where it should be noted that the MAC-d entity is dedicated to the transmission The medium access control (MAC) entity of the channel, the MAC-d entity is located in the RNC, the MAC-ehs entity is the MAC entity for processing the high-speed downlink shared channel, and the MAC-ehs entity is located in the Node B. Due to the complexity of the air ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/10H04W28/14H04W92/12
Inventor 朱颖杨茜
Owner POTEVIO INFORMATION TECH
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