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Ranging code generation method and device

A code generation, n-2 technology, applied in the field of communication, can solve problems such as slow resource consumption of ranging codes

Active Publication Date: 2017-09-29
南通东湖国际商务服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a method and device for generating a ranging code, so as to optimize the problem that in the existing ranging detection, the generation of ranging codes with different serial numbers on the base station side is slow or the resource consumption is too large

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  • Ranging code generation method and device
  • Ranging code generation method and device

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Embodiment Construction

[0072] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0073] Such as figure 1 Shown is the flow chart of the preferred embodiment of the present invention's ranging code generation method, and this embodiment includes the following steps:

[0074] Step S001: According to the serial numbers of the ranging codes configured by the system, a corresponding PN code is generated for each ranging code and stored sequentially according to the above-mentioned ranging numbers;

[0075] Such as figure 2 As shown, it is a schematic diagram of the principle of the PRBS generator that generates the ranging code in the...

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Abstract

The present invention relates to a method and device for generating a ranging code. The method includes: generating and storing a PN code for a ranging code of each serial number in advance, and reading the corresponding PN code according to the serial number of the ranging code when a ranging code needs to be generated. ;Initialize the PRBS, perform a correlation operation on the PRBS and the PN code, generate the first bit of the ranging code, and shift the PRBS 143 times in units of 1 bit, and perform a correlation operation with the PN code for each shift, in turn The subsequent bit of the ranging code is obtained, and finally the ranging code of the above serial number is obtained; the above device includes a PN code generating module, a PN code reading module, a PRBS module and a ranging code generating module. The invention improves the generation speed of ranging codes with different serial numbers.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for generating a ranging code. Background technique [0002] OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) is a multi-carrier transmission technology. In recent years, OFDM has been widely used, especially in the field of mobile communication. OFDM is considered to be a very promising key technology, and it has become one of the physical layer technologies of the IEEE 802.16 protocol. [0003] Based on the IEEE802.16e protocol OFDMA (Orthogonal Frequency Division Multiple Access, Orthogonal Frequency Division Multiple Access) system, the uplink synchronization between the mobile station and the base station is completed through ranging, that is, the ranging signal has the functions of timing synchronization and carrier synchronization. At the same time, the ranging signal also includes the functions of issuing bandwidt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
Inventor 胡蜀徽
Owner 南通东湖国际商务服务有限公司