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Data transmission method and equipment

A data transmission method and equipment technology, applied in the field of communication, can solve the problems that the sending end equipment cannot determine the unavailable state of the receiving end equipment, cannot provide effective policy data packets, etc., and achieve the effect of improving the effectiveness of communication

Pending Publication Date: 2021-11-26
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiment of the present application is to provide a data transmission method and device to solve the problem that the sending end device cannot determine whether the related application of the receiving end device is about to enter an unavailable state, and thus cannot provide an effective strategy to ensure the survival time of the data packet as much as possible Problems reaching the receiving device within

Method used

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  • Data transmission method and equipment
  • Data transmission method and equipment
  • Data transmission method and equipment

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Embodiment 1

[0052] In Embodiment 1, on the basis of Embodiment 100, it is also possible to determine whether consecutive N first data packet sending timeouts occur through a sliding window, and the window length of the sliding window is equal to N.

[0053] In this embodiment, if the first timers corresponding to the N first data packets in the sliding window all time out, then it is determined that the consecutive N first data packets are sent overtime, wherein each first data packet may correspond to A first timer.

[0054] In this embodiment, the sending end device, for example, the PDCP layer or the radio link control (RadioLink Control, RLC) layer) of the sending end device can maintain a sliding window, and the window length N of the sliding window can be configured by the network device, or It can be an agreement. In an example, the sending end device is a terminal device, and the network device configures a sliding window with a window length of N, corresponding to N data packets...

Embodiment 2

[0106] In the second embodiment, on the basis of the embodiment 100, it is also possible to determine whether the sending of N consecutive first data packets times out through the operation of the timer.

[0107] The timer mentioned in the second embodiment includes a second timer and a third timer. Wherein, each data packet may correspond to a second timer, and the start timing of the second timer may include: after the data packet arrives; or, after a predetermined time after the data packet arrives. The start timing of the third timer includes: any one of the second timers expires. For the detailed introduction of "data packet arrival", refer to the relevant description in Embodiment 100.

[0108] Optionally, when the second timer expires and the third timer is running, the sending end device may also perform at least one of the following: not starting a new third timer; not restarting the third timer. The third timer mentioned above; keep the running third timer to conti...

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Abstract

The embodiment of the invention discloses a data transmission method and equipment, which are used for solving the problem that transmitting-end equipment cannot determine whether related applications of receiving-end equipment are about to be in an unavailable state or not, so as not to be able to provide an effective policy to ensure that a data packet reaches the receiving-end equipment within survival time as much as possible. The method can be executed by the transmitting-end equipment, and comprises the following steps: adjusting a data transmission policy under the condition it is determined that N continuous first data packets have sending timeouts, N being an integer greater than 1.

Description

technical field [0001] The embodiments of the present application relate to the communication field, and in particular, to a data transmission method and device. Background technique [0002] The availability of communication services is an important service performance requirement indicator for many automation function applications, especially for applications with deterministic business flows. In the industrial environment, many automation function applications have high communication service availability requirements, such as mobile control, and its communication service availability requirements are as high as 99.999999%. [0003] In the actual application process, when the receiving end device does not correctly receive the data packet sent by the sending end device within a specific time (such as survival time, survival time), it will cause the (automation function) application of the receiving end device to become unavailable state. [0004] However, for the sending...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18H04L5/00
CPCH04L1/0006H04L1/0015H04L1/1812H04L1/188H04L5/0082H04L1/18H04L1/00H04L5/00
Inventor 张艳霞
Owner VIVO MOBILE COMM CO LTD
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