A realization method to dynamically change maximum length of bandwidth request

A bandwidth request and maximum length technology, applied in the field of communication, can solve problems such as increased business air delay, inability to send data frames, waste of air bandwidth, etc., and achieve the effect of utilizing system bandwidth

Inactive Publication Date: 2009-07-22
ZTE CORP
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Problems solved by technology

[0005] 1. The requested bandwidth length is greater than the remaining bandwidth available for allocation in the current system, so that the entire data frame cannot be sent within a single MAP cycle, and the data frame can only be completely sent out in multiple MAPs, which will lead to service air delay increase;
[0006] 2. The requested bandwidth length is far less than the remaining bandwidth of the current system, resulting in a waste of air bandwidth

Method used

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  • A realization method to dynamically change maximum length of bandwidth request
  • A realization method to dynamically change maximum length of bandwidth request
  • A realization method to dynamically change maximum length of bandwidth request

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Embodiment Construction

[0026] The specific implementation of the present invention will be briefly described below by taking the service interface specification DOCSIS (Data-Over-Cable Service Interface Specifications) protocol of data cables as an example. Before describing the specific implementation, let's briefly introduce the DOCSIS protocol.

[0027] The DOCSIS protocol is a cable TV network protocol, mainly specifying the operation specifications of the MAC (media access control) layer and the physical PHY (physical) layer in the point-to-multipoint cable TV network. The MAC layer specifies air bandwidth management and QoS guarantee for business. In the uplink direction, services are sent in the form of MAC frames, and the length of MAC frames is variable. The base station side regularly allocates the sending opportunity of sending the bandwidth request to the terminal. If the terminal side has data to send, it sends the bandwidth request information within the sending opportunity. The base ...

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Abstract

The present invention proposes a method for dynamically changing the maximum length of a bandwidth request, including the following steps: 1. Within a set time period, the base station side counts the remaining bandwidth of the current system, according to the number of mini-slots, the number of bytes, and the weight 1. The sequence of the corresponding values ​​of the terminal calculates the maximum transmission data length of each terminal in a bandwidth allocation map; 2. The base station notifies the terminal of the maximum length of the transmitted data; 3. The terminal notifies the framing module of the received data length; 4. The framing module performs framing according to the data length; 5. The terminal makes a bandwidth request according to the length of the data frame. The method of the invention enables a single user to dynamically adjust the maximum length of the data frame requested by the bandwidth according to the current bandwidth of the system, dynamically changes the current flow according to the occupation of the system bandwidth, and effectively utilizes the system bandwidth.

Description

technical field [0001] The invention relates to a point-to-point access system and a point-to-multipoint access system in the field of communication, dynamically adjusting the maximum length of a data frame according to the real-time occupancy of the system bandwidth, so that the requested data length changes accordingly, so as to dynamically change the uplink data service flow implementation method. Background technique [0002] The broadband access system adopts the point-to-multipoint (wireless / wired) transmission mode to realize fixed integrated service (data / circuit) access between the user network and the backbone network, and its service objects are mainly group users, used in enterprises and residential quarters Waiting for the comprehensive access of users. [0003] In a point-to-multipoint access system, the system is generally divided into two parts, one is the terminal, and the other is the base station. The base station side controls data transmission timing a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/56H04L47/525
Inventor 崔宗芳牟川黄清华
Owner ZTE CORP
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