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Method for simulating downlink data frame generation and flow control in base station and base station thereof

A technology of downlink data and base station, applied in the field of communication, can solve the problem of inability to separate isolation and positioning

Inactive Publication Date: 2008-12-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] From the above analysis, it can be seen that the flow control function of HSDPA requires the cooperation of RNC and Node B to complete. If it is necessary to test and verify the HSDPA flow control function of Node B in the initial stage of network design and testing, it cannot be realized, and if the RNC and Node B There is a flow control problem during the docking process of B, and it is impossible to separate and isolate and locate

Method used

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  • Method for simulating downlink data frame generation and flow control in base station and base station thereof
  • Method for simulating downlink data frame generation and flow control in base station and base station thereof
  • Method for simulating downlink data frame generation and flow control in base station and base station thereof

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Embodiment 1

[0021] Embodiment 1. A method for simulating and generating downlink data frames inside a Node B. The process is as follows figure 1 shown, including:

[0022] A1. Generate a capacity allocation control frame to indicate the data capacity and transmission frequency of downlink data frames of a certain priority;

[0023] This step is to use the function of the flow control entity in the Node B to actively initiate the capacity allocation control frame without the RNC capacity request control frame. The capacity allocation control frame mainly carries parameters related to priority, data capacity and transmission frequency. Taking the HS-DSCH capacity allocation control frame in HSDPA as an example, the data structure diagram of the load part is as follows figure 2 as shown, figure 2 "7" and "0" in the upper part of the structure diagram represent the 7th and 0th bit (bit) respectively, and the meaning of each parameter is shown in Table 1:

[0024] Table 1

[0025] ...

Embodiment 2

[0039] Embodiment 2, a method for simulating the flow control process of downlink data inside Node B, the process is as follows Figure 4 shown, including:

[0040] B1. Generate a capacity allocation control frame to indicate the data capacity and transmission frequency of downlink data frames of a certain priority;

[0041] B2. According to the priority and data capacity parameters carried by the capacity allocation control frame, fill the corresponding parameters of the frame header part of the downlink data frame, and fill the PDU data part of the downlink data frame with any content;

[0042] Above-mentioned B1, B2 steps can be carried out according to the mode among the embodiment one;

[0043] B3. Control the transmission of the simulated generated downlink data frame according to the transmission frequency parameter carried by the capacity allocation control frame; still take the HS-DSCH capacity allocation control frame and data frame adopted in Embodiment 1 as an exa...

Embodiment 3

[0046] Embodiment 3, a Node B, such as Figure 5 As shown, including flow control module 1 and downlink simulation module 2;

[0047] The flow control module 1 generates a capacity allocation control frame and sends it to the downlink simulation module 2, indicating the data capacity and transmission frequency of downlink data frames of a certain priority; the flow control module 1 also receives the downlink data frame sent by the downlink simulation module 2;

[0048] The downlink simulation module 2 includes a downlink data frame simulation generation module 21 and a downlink data frame simulation delivery module 22;

[0049] The downlink data frame simulation generation module 21 fills the corresponding parameters of the frame header part of the downlink data frame according to the priority and data capacity parameters carried by the capacity allocation control frame, and fills the transmission unit data part of the downlink data frame with any content ;

[0050] The down...

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Abstract

The invention discloses a method for simulating and generating a downlink data frame inside a Node B, and its core idea is to use the capacity distribution control frame information initiated by the Node B to control the simulating generation of the internal downlink data frame. The priority and data capacity information in the capacity allocation control frame is mainly used when generating the downlink data frame. Using the downlink data frame generated by the simulation, the present invention further provides a method for simulating the entire flow control process inside the Node B. At the same time, the present invention also provides a NodeB capable of realizing the above flow control simulation function. The invention enables the Node B to independently generate the downlink data frame internally without the cooperation of the RNC, thereby enabling the simulation of the entire flow control process inside the Node B without the RNC. The solution of the invention makes it possible to independently test the flow control function on the Node B side, and to perform isolation and positioning when a flow control problem occurs during the docking process between the RNC and the Node B.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to related technologies for performing analog control of downlink data flow inside a base station (Node B). Background technique [0002] High Speed ​​Downlink Packet Access (HSDPA, High Speed ​​Downlink Packet Access) is introduced in the fifth version (R5, Release 5) of Wide-band Code Division Multiple Access (WCDMA, Wide-band Code Division Multiple Access) technology. An important part of realizing HSDPA is to increase high-speed media access control (MAC-hs) protocol in NodeB. MAC-hs includes flow control, scheduling / priority processing, hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat reQuest), and other functional entities [0003] The flow control entity of MAC-hs is mainly for the dedicated channel media access control (MAC-d) and common / shared channel media access control (MAC-c / sh) from the radio network controller (RNC, Radio Network Controlle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04B7/26H04Q7/30H04L47/431
Inventor 郭政
Owner HUAWEI TECH CO LTD
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