Hybrid timing synchronization method for ad hoc network and related equipment thereof
A timing synchronization and network hybrid technology, which is applied in the direction of synchronization devices, network topology, and services based on specific environments, etc., can solve the problems of inability to effectively support long-distance transmission based on RTT timing, low timing synchronization efficiency, and failure to solve timing synchronization problems, etc. question
Pending Publication Date: 2021-12-10
SHENZHEN CONSYS SCI&TECH CO LTD
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Problems solved by technology
[0004] In the 5G+V2X synchronization mechanism, it cannot effectively support RTT-based timing long-distance transmission
In addition, under the current network timing mechanism based on time slots, synchronization signals are generally sent periodically. If the sending period is short, this fixed periodic sending will limit the number of terminals accessing the network; if the sending period is long , when there are few network users, the efficiency of timing synchronization will be low
Moreover, the synchronization mechanism of 5G+V2 fails to solve the problem of network timing synchronization between terminals with different transmission distances in the mixed scene of the ad hoc network, which also leads to low efficiency of timing synchronization
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[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the application; the terms used herein in the description of the application are only to describe specific embodiments The purpose is not to limit the present application; the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the description of the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the description and claims of the present application or the above drawings are used to distinguish different objects, rather than to describe a specific order.
[0049] Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The occurrenc...
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The embodiment of the invention belongs to the technical field of wireless communication, and relates to an ad hoc network hybrid timing synchronization method and related equipment thereof. The method comprises the steps that a current terminal receives a first synchronization signal sent by other terminals in a synchronization channel, and obtains the sending power carried by the first synchronization signal; the current terminal executes a synchronization signal energy detection operation to obtain synchronization signal energy, and selects a corresponding synchronization mode based on the sending power and / or the detected synchronization signal energy to perform a timing synchronization operation; and the current terminal determines whether a synchronization signal sending trigger condition is detected, and when the synchronization signal sending trigger condition is detected, a second synchronization signal is sent to the other terminals. According to the invention, network timing synchronization between terminals with different transmission distances is realized.
Description
technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a hybrid timing synchronization method of an ad hoc network and related equipment. Background technique [0002] Synchronous timing technology is a very important technology in digital communication network, which can guarantee the data transmission between point to point. At present, the timing mechanism of the ad hoc network mainly includes a synchronization mechanism based on CSMA (Carrier Sense Multiple Access, Carrier Sense Multiple Access) and a synchronization mechanism based on time slots. In the CSMA-based synchronization mechanism, the terminal detects the signal all the time, and when a peak is found, the rough timing is estimated, and then the fine timing is estimated based on the subsequent signal. This timing mechanism does not require all the ad hoc networks to perform timing synchronization, and can directly realize point-to-point tim...
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IPC IPC(8): H04W56/00H04W4/40H04W84/18
CPCH04W56/001H04W4/40H04W84/18
Inventor刘建德梁宏建马显卿倪吉庆李秉权
OwnerSHENZHEN CONSYS SCI&TECH CO LTD