Interface wake-up synchronization method, interface device and computer-readable medium

An interface device and computer technology, applied in the field of communication, can solve problems such as cost increase, channel deterioration, and out-of-sync state between source interface and target interface, and achieve the effects of improving wake-up efficiency, saving processing overhead, and simplifying implementation.

Active Publication Date: 2019-03-05
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the soft wake-up scheme, the source interface sends a specific synchronization code word (Magic Word) to the target interface to wake up the target interface. The biggest problem with this scheme is that the synchronization between the source interface and the target interface cannot be guaranteed.
For example, after the source interface sends a synchronization codeword to the target interface, the source interface enters the wake-up state, and the target interface may be in sleep mode because the channel becomes poor and cannot receive the synchronization codeword, which causes the state of the source interface and the target interface to be out of sync.
For the hard wake-up scheme, in addition to the synchronization problem between the source interface and the target interface, additional pins (pins) overhead are required, resulting in a further increase in cost

Method used

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  • Interface wake-up synchronization method, interface device and computer-readable medium
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  • Interface wake-up synchronization method, interface device and computer-readable medium

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Embodiment Construction

[0052] The existing soft wake-up scheme cannot realize the synchronous wake-up of the source interface and the target interface, which leads to the out-of-sync state of the source interface and the target interface. In addition to the problem of synchronization between the source interface and the target interface, the hard wake-up solution also requires additional pins overhead, resulting in a further increase in cost.

[0053] In the embodiment of the present invention, the source interface sends the wake-up instruction information and the wake-up confirmation information to the target interface, and the target interface sends the wake-up instruction response information to the source interface, so as to realize the three information interactions between the source interface and the target interface, and after the three information interactions are successful The source interface and the target interface enter the wake-up state synchronously, which can avoid the state desynch...

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Abstract

An interface wake-up synchronization method, an interface device, and a computer readable medium are provided. The interface wake-up synchronization method comprises the following steps of sending wake-up indication information to a target interface; receiving wake-up indication response information sent by the target interface, and generating wake-up confirmation information based on the wake-upindication response information; sending the wake-up confirmation information to the target interface; after delaying the preset first time period, entering the wake-up state. With the above scheme, the source interface and the destination interface can enter the wake-up state synchronously, thereby avoiding the state out-of-step caused by one party entering the wake-up state while the other partysleeps.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular to an interface wake-up synchronization method, an interface device, and a computer-readable medium. Background technique [0002] In an existing communication interface, such as a Universal Asynchronous Receiver / Transmitter (UART) interface, in order to save energy, when the interface is in a low activity state, it can work in a sleep / power saving mode (Sleep / Doze Mode). After that, how to effectively and quickly wake up the interface in Sleep / Doze Mode becomes a very important issue. [0003] In existing product implementations, there are two solutions: soft wake-up and hard wake-up. For the soft wake-up scheme, the source interface sends a specific synchronization code word (Magic Word) to the target interface to wake up the target interface. The biggest problem with this scheme is that the synchronization between the source interface and the target interf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/4401G06F13/42
CPCG06F9/4418G06F13/4282
Inventor 余庆华王泷
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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