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Sending, receiving, and transmitting method for preamble sequence

A preamble sequence and transmission method technology, applied in the field of communication, can solve the problems of low transmission efficiency and less information carried by the preamble sequence, and achieve the effect of improving efficiency

Inactive Publication Date: 2009-07-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention is made in consideration of the above-mentioned problems. For this reason, the main purpose of the present invention is to provide a method for sending a preamble, a method for receiving a preamble, and a method for transmitting a preamble, so as to solve the problems in the related art that the preamble carries little information, The problem of low transmission efficiency

Method used

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  • Sending, receiving, and transmitting method for preamble sequence
  • Sending, receiving, and transmitting method for preamble sequence
  • Sending, receiving, and transmitting method for preamble sequence

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Embodiment 1

[0028] In this embodiment, a method for sending a preamble (preamble) sequence is provided.

[0029] Such as figure 1 As shown, the method for sending a preamble sequence according to this embodiment includes: step S102, setting the corresponding relationship between the preamble sequence and the system parameters; and step S104, the base station obtains the corresponding preamble sequence according to the actual system parameters and the corresponding relationship of the system, and sends The corresponding preamble sequence.

[0030] in, figure 2 A schematic diagram of a downlink subframe and an uplink subframe in the IEEE 802.16 OFDMA protocol is shown. and image 3 A schematic diagram of the position of the preamble in the downlink subframe is shown. It can be seen that, while sending the above corresponding preamble sequence, a synchronization sequence is also sent, and different base station groups are distinguished by the type of the synchronization sequence. The s...

Embodiment 2

[0039] In this embodiment, a method for receiving a preamble sequence is provided, which is used for receiving the preamble sequence sent by the method for sending a preamble sequence according to the above embodiment.

[0040]Such as Figure 5 As shown, the method for receiving a preamble sequence according to this embodiment includes: S502, setting the corresponding relationship between the preamble sequence and the system parameters; and S504, the terminal matches the received preamble sequence according to the corresponding relationship, and obtains the actual system parameters of the system.

[0041] Among them, in step S502, further set the corresponding relationship between Segment information and the mapping position of the preamble sequence on the subcarrier, and the mapping relationship between IDcell and preamble sequence, and further obtain the Segment information and system Segment information of the system by matching in step S504 ID cells.

[0042] When actuall...

Embodiment 3

[0044] In this embodiment, a method for transmitting a preamble sequence is provided.

[0045] Such as Figure 7 As shown, the transmission method of the preamble sequence according to this embodiment includes: step S702, setting the corresponding relationship between the preamble sequence and the system parameters; step S704, the base station obtains the corresponding preamble sequence according to the actual system parameters and the corresponding relationship of the system, and sends the corresponding the preamble sequence; and step S706, the terminal matches the received corresponding preamble sequence according to the corresponding relationship, and obtains the actual system parameters of the system.

[0046] In summary, the present invention obtains relevant Segment information by detecting the mapping position of the preamble sequence on the subcarrier at the receiving end, and obtains IDcell and other system information through sequence matching, which can effectively ...

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Abstract

The invention discloses a preamble sequence sending method. The preamble sequence sending method comprises steps of S102, setting corresponding relationship between the preamble sequence and system parameters; S104, according to real system parameters and the corresponding relationship, obtaining the corresponding preamble sequence by a base station, and sending the corresponding preamble sequence. Otherwise, the invention also discloses a preamble sequence receiving method and a preamble sequence transmitting method. By using the invention, transmitting efficiency can be improved effectively under the premise of not affecting the system performances.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method for transmitting a preamble based on Orthogonal Frequency Division Multiplex Access (OFDMA), a method for receiving a preamble, and a method for transmitting a preamble . Background technique [0002] OFDM is a multi-carrier transmission mode. This technology converts a set of high-speed serial transmission data streams into a set of low-speed parallel transmission data streams, which greatly reduces the sensitivity of the system to the frequency selectivity of multipath fading channels, and can further enhance the system by introducing a cyclic prefix. The ability of the system to resist Inter-symbol Interference (ISI). In addition, this technology has been widely used in the field of wireless communication due to its high bandwidth utilization rate and simple implementation. For example, in WLAN systems, IEEE 802.16 systems are all based on OFDM technology...

Claims

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Application Information

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IPC IPC(8): H04L27/26
Inventor 刘敏余秋星
Owner ZTE CORP
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