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Random access channel selection, configuration method, access device and network device

A random access channel and access device technology, applied in the field of communication applications, can solve the problems of large minimum bandwidth and inapplicability to satellite terminal access, and achieve the effect of meeting the requirements of signal-to-noise ratio

Active Publication Date: 2022-07-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a random access channel selection, configuration method, access equipment, and network equipment to solve the problem that the minimum bandwidth defined by the terrestrial 5G standard in the high frequency band is large and cannot be applied to satellite terminals with low power levels access problem

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  • Random access channel selection, configuration method, access device and network device
  • Random access channel selection, configuration method, access device and network device
  • Random access channel selection, configuration method, access device and network device

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Embodiment Construction

[0102] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the invention to those skilled in the art.

[0103] The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustra...

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Abstract

The present invention provides a random access channel selection, configuration method, access equipment and network equipment, which solves the problem that the minimum bandwidth defined by the terrestrial 5G standard is too large and cannot be applied to low-power satellite terminal access in the case of high frequency bands. The present invention includes: acquiring parameter information and time-frequency resource allocation information corresponding to at least two random access channels, and the parameter information corresponding to each random access channel includes: subcarrier spacing and preamble sequence, according to the subcarrier spacing and preamble The random access channel bandwidth obtained by the length of the sequence is less than or equal to the maximum transmission bandwidth of the satellite access device, and the subcarrier spacing includes the reference value of the maximum frequency offset that the satellite system needs to resist; according to the capability of the access device and the working scenario of the access device The ratio of the frequency offset to the random access channel, the target parameter information is selected in the parameter information; according to the target parameter information, the random access channel is selected, and the random access signal is sent based on the time-frequency resource allocation information.

Description

technical field [0001] The present invention relates to the technical field of communication applications, and in particular, to a method for selecting and configuring a random access channel, an access device and a network device. Background technique [0002] For the terrestrial 5G mobile communication system, in the high frequency band, the single-carrier bandwidth is defined as an integer multiple of 50MHz, the minimum value is 50MHz, and the typical values ​​are 100MHz, 200MHz, 400MHz and other types. Taking the subcarrier spacing of 120KHz as an example, The specific parameters under each bandwidth are shown in Table 1. Based on this bandwidth definition, the setting of the random access channel is not affected. [0003] define bandwidth 50MHz 100MHz 200MHz 400MHz Number of PRBs 32 66 132 264 effective bandwidth 46.08MHz 95.04MHz 190.08MHz 380.16MHz [0004] Table 1 [0005] For the satellite mobile communication system usi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04B7/185H04W72/04
CPCH04W74/0833H04B7/1853H04B7/18543H04W72/0446H04W72/0453H04B7/1851H04B7/18539H04W72/044
Inventor 康绍莉缪德山孙韶辉王映民
Owner DATANG MOBILE COMM EQUIP CO LTD