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Time allocation method, device and system

A technology for time allocation and message configuration, applied in the field of communication, it can solve problems such as line pair crosstalk, and achieve the effect of reducing crosstalk and improving communication efficiency

Active Publication Date: 2021-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a time allocation method, device, and system to at least solve the problem of crosstalk between wire pairs during the dynamic time adjustment process in the related art

Method used

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  • Time allocation method, device and system
  • Time allocation method, device and system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0026] In this embodiment, a time allocation method for running the above network architecture is provided, Figure 4 is a flowchart of a time allocation method according to an embodiment of the present invention, such as Figure 4 As shown, the process includes the following steps:

[0027] Step S402, the central office receives a dynamic time adjustment DTA update request message;

[0028] Step S404, the central office performs at least one of the following operations: determine the updated time division duplex TDD frame configuration parameters according to the DTA update request message, and / or determine whether to start the function for reducing crosstalk between wire pairs when updating the TDD frame Specific transmission mode; send DTA configuration message to the terminal.

[0029] Through the above steps, the terminal receives the DTA update request message sent by the DRA; the terminal performs at least one of the following operations: determine the updated time di...

specific Embodiment approach 1

[0078] Figure 5 It is a schematic diagram of the cDTA update process when DTAFDC is just set to zero and Ack(all)=0 under the Mds.new>Mds situation according to the specific mode 1 of the present invention, as Figure 5 As shown, in this embodiment, the number of downlink symbols (Mds.new) in the TDD frame configuration parameters to be updated is greater than the original number of downlink symbols (Mds), and the specific process is as follows.

[0079] (1) FTU-O sends a new TDD frame (or logical frame) configuration instruction (ie, DTA configuration message) to FTU-R, wherein the DTA configuration message includes the number of TDD frame downlink symbols to be updated (Mds.new), DTA frame Decrement count value (DTAFDC), indication information for confirming whether each FTU-R has received the DTA configuration message (indicated by Ack(all), the initial value is 0).

[0080] (2) As DTAFDC decreases by one every time a TDD frame (or logical frame) period passes, when DTAFD...

specific Embodiment approach 2

[0086] Figure 6 It is a schematic diagram of the cDTA update process when DTAFDC is just set to zero and Ack(all)=0 in the case of Mds.new Figure 6 As shown, in this embodiment, the number of downlink symbols (Mds.new) in the TDD frame configuration parameters to be updated is smaller than the original number of downlink symbols (Mds), and the specific process is as follows.

[0087] (1) FTU-O sends a new TDD frame (or logical frame) configuration instruction (ie, DTA configuration message) to FTU-R, wherein the DTA configuration message includes the number of TDD frame downlink symbols to be updated (Mds.new), DTA frame Decrement count value (DTAFDC), indication information for confirming whether each FTU-R has received the DTA configuration message (indicated by Ack(all), the initial value is 0).

[0088] (2) As DTAFDC decreases by one every time a TDD frame (or logical frame) period passes, when DTAFDC reaches zero, and at this time Ack(all)=0 (that is, it means that all F...

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Abstract

The present invention provides a time allocation method, device and system, wherein the method includes: the central office receives the DTA update request message sent by the DRA; the central office performs at least one of the following operations: determine the update according to the DTA update request message Time division duplex TDD frame configuration parameters, and / or determine whether to start a specific transmission mode for reducing crosstalk between wire pairs when updating the TDD frame; send DTA configuration information to the terminal. The above-mentioned technical solution solves the problem of crosstalk between wire pairs in the process of dynamic time adjustment in the related art. Terminals and other devices use the above-mentioned solution to communicate, which greatly reduces the crosstalk between wire pairs and improves communication efficiency.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a time allocation method, device and system. Background technique [0002] In the related art, copper cable access systems include Fast Access Subscriber Terminal (FAST) system and Very High Speed ​​Digital Subscriber Line 2 (VDSL2) system. Its network architecture can be divided into G.fast / xDSL central office (DPU) and G.fast / xDSL terminal (CPE). Among them, the G.fast / xDSL central office (DPU) can provide multiple interfaces to connect to multiple terminals (CPE), that is, a central office module FTU-O is connected to a terminal module FTU-R (P2P architecture), such as figure 1 as shown, figure 1 It is a schematic diagram of the G.fast / xDSL system architecture according to the related art. The connection medium between the G.fast / xDSL central office end and the corresponding interface of the terminal can be copper cable medium such as twisted pair wire and coaxial cable. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/16H04L5/00H04L5/14
CPCH04J3/16H04L5/00H04L5/14H04W72/04
Inventor 卢刘明胡珊袁立权
Owner ZTE CORP