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Method for interpreting system messages by LTE (Long Term Evolution) terminal

A system message and terminal technology, which is applied in communication between multiple stations, electrical components, wireless communication, etc., can solve problems such as time-consuming, unfavorable terminals to quickly interpret system messages, and signal interaction to increase design complexity, etc., to reduce Design complexity, increase speed, reduce interaction effect

Inactive Publication Date: 2011-06-22
CHONGQING CYIT COMM TECH
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  • Summary
  • Abstract
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Problems solved by technology

[0031] In the prior art, after interpreting the MIB, the physical layer needs to report the MIB data block and the time-frequency information of interpreting the MIB to the RRC, and the RRC calculates the SFN, and then configures it to the physical layer, and the physical layer interprets the SIB1 system message according to the SFN. The interaction between the physical layer and RRC takes time, so it is not conducive to the terminal to quickly interpret system messages. At the same time, the increase in signal interaction between different layers will also increase the complexity of the design

Method used

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  • Method for interpreting system messages by LTE (Long Term Evolution) terminal
  • Method for interpreting system messages by LTE (Long Term Evolution) terminal
  • Method for interpreting system messages by LTE (Long Term Evolution) terminal

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specific Embodiment 1

[0050] The process of this embodiment is attached Figure 4 Shown:

[0051] 1. The terminal performs PSCH and SSCH synchronization;

[0052] 2. The physical layer of the terminal performs PBCH blind detection to find the position of the wireless frame carrying the MIB data block;

[0053] 3. The physical layer interprets the MIB data block at the corresponding position;

[0054] 4. The physical layer analyzes all the contents of the MIB data block, obtains the upper 8 bits of the SFN of the wireless frame where the MIB data block is located, and obtains the SFN of the wireless frame where the MIB is located according to the time-frequency position rules of the MIB;

[0055] In this embodiment, after the physical layer parses the MIB data block, the upper 8 bits of the SFN of the wireless frame where the MIB is located are obtained. According to the MIB time-frequency position rule, the SFNs of the 4 wireless frames where the MIB is located are respectively: xxxxxxxx00, xxxxx...

specific Embodiment 2

[0060] The process of this embodiment is attached Figure 5 shown.

[0061] Steps 1~3 are identical with specific embodiment 1;

[0062] 4. The physical layer analyzes the SFN information in the MIB data block, obtains the upper 8 bits of the SFN of the wireless frame where the MIB data block is located, and obtains the SFN of the wireless frame where the MIB is located according to the time-frequency position rules of the MIB;

[0063] In this embodiment, the physical layer only parses the SFN data in the MIB data block, that is, starting from the 7th bit of the MIB data block, continuously reads 8 bits of data to obtain the upper 8 bits of the SFN of the wireless frame where the MIB is located, according to According to the MIB time-frequency position rule, the SFNs of the four wireless frames where the MIB is located are obtained in turn: xxxxxxxx00, xxxxxxxx01, xxxxxxxx10, xxxxxxxx11; where the frame number is represented in binary, and xxxxxxxx represents the upper 8 bit...

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Abstract

The invention discloses a method for interpreting system messages by an LTE (Long Term Evolution) system terminal. The method comprises the following steps of: directly analyzing MIB (Main Information Block) data by a terminal physical layer after an MIB data block is interpreted through blind detection to acquire the SFN (System Frame Number) of a radio frame of the MIB so as to confirm the possible radio frame position of the SIB1 (System Information Block I); and interpreting the SIB1 data in a corresponding position, analyzing the interpreted SIBI data by the terminal to acquire the time frequency position of other system messages and interpreting other system messages in corresponding positions. In the invention, the SFN is acquired by directly analyzing the MIB data by the physical layer which can interpret the SIB1 data without waiting for RRC (Radio Resource Control) to configure the SFN, thus, the system message interpreting speed of the terminal is improved, the interaction between the physical layer and the RRC is decreased at the same time and a system design is simplified.

Description

technical field [0001] The present invention relates to the terminal technology of the long-term evolution of the third generation mobile communication system (abbreviated as: LTE), especially the method for the LTE terminal to interpret system messages. Background technique [0002] According to the requirements of the version 8 standard (referred to as: R8) proposed by the 3rd Generation Partnership Project (referred to as: 3GPP), the system messages broadcast by the LTE enhanced base station (referred to as eNode B) on the air wireless interface (Uu interface) are divided into three categories. They will broadcast differently. [0003] The first category: Master Information Block (abbreviation: MIB), which mainly includes the bandwidth of the eNode B cell, the configuration parameters of the physical hybrid automatic repeat indicator channel (abbreviation: PHICH), and the upper 8 bits of the system frame number (abbreviation: SFN) . [0004] According to the description...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04W24/00H04W92/10
Inventor 段红光何海
Owner CHONGQING CYIT COMM TECH
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