A LTE random access method for smart grid

A random access and random access preamble technology, applied in electrical components, wireless communication, etc., can solve problems such as random access failures and collisions, and achieve the effects of improving utilization, ensuring service quality, and reducing interaction overhead

Active Publication Date: 2021-03-02
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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Problems solved by technology

Therefore, different UEs may select the same random access resource, which will cause a collision of transmissions, resulting in the failure of this random access.

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  • A LTE random access method for smart grid
  • A LTE random access method for smart grid
  • A LTE random access method for smart grid

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0040] Such as figure 1 As shown, the present invention provides a smart grid-oriented LTE random access method. The method realizes random access according to the preamble allocation strategy in different application stages of the electric power LTE network, including contention-based random access and non-contention-based random access. , the contention-based random access method is a random access method based on power priority of power service grouping; ...

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Abstract

The invention provides an LTE random access method for an intelligent power grid, and the method comprises the steps that a user terminal high layer requests for triggering the random access process of a physical layer; a user terminal calculates the transmission power of a random access channel based on the priority of different power businesses; the user terminal selects a precursor random sequence according to the calculates transmission power, and transmits a single precursor sequence in a random access channel resource specified by the user terminal high layer; a base station receives an uplink message, and returns the response information to the user terminal. The method provided by the invention meets the demands of the intelligent power grid for multi-business access, solves a problem of contradiction between limited access resources and the random access demands of a large number of terminals, achieves the different priority access of different power businesses, and guarantees the service quality of the power businesses.

Description

technical field [0001] The invention relates to the technical field of electric power system communication, in particular to a smart grid-oriented LTE random access method. Background technique [0002] Random access is the first step for user equipment to communicate with the network after completing downlink synchronization through primary-secondary synchronization sequence mapping in mobile communications. In the LTE system, downlink synchronization must be performed before the terminal (UE) communicates with the base station (eNodeB), and on this basis, uplink synchronization is further completed, that is, random access. The random access process is the decisive link to ensure the establishment of communication, and it is also a key factor affecting user experience and system performance. Therefore, it is necessary to analyze the random access process of the LTE system in detail. [0003] The power information perception collection has the characteristics of wide collec...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W74/0833H04W74/085
Inventor 姚继明郭经红梁云李炳林张浩黄凤黄莉田文锋王瑶韦磊
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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