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Method and device for receiving system messages as well as method and device for confirming position of sending window

A system message and sending window technology, applied in the field of communication, can solve problems such as sending conflicts, and achieve the effect of avoiding sending conflicts

Inactive Publication Date: 2012-11-28
李梦姣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scheduled SI-7 conflicts with the transmission of SIB 1 because it is sent on the #5 subframe of the #0 radio frame

Method used

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  • Method and device for receiving system messages as well as method and device for confirming position of sending window
  • Method and device for receiving system messages as well as method and device for confirming position of sending window
  • Method and device for receiving system messages as well as method and device for confirming position of sending window

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: frame_offset=0, sending window w=1

[0051] According to the embodiment of the present invention, the radio frame and subframe at the beginning of the SI transmission window can be expressed by the following formula:

[0052] window_offset=n-1, n=1, 2, 3, 4, 5;

[0053] window_offset=n, 25>n>=6;

[0054] Send the wireless frame at the beginning of the window: SFN%N=floor((window_offset) / 10);

[0055] The start subframe of the sending window: subframe=(window_offset)%10;

[0056] The radio frame and subframe where SI-2 is located satisfy: SFN%16=0, subframe=0, that is, in the #0 subframe of an even frame;

[0057] The radio frame and subframe where SI-3 is located satisfy: SFN%32=0, subframe=1, that is, in the #1 subframe of the even-numbered frame;

[0058] The radio frame and subframe where SI-4 is located satisfy: SFN%64=0, subframe=2, that is, in the #2 subframe of the even-numbered frame;

[0059] The radio frame and subframe where SI-5 satisfies: SFN%64=0, subframe...

Embodiment 2

[0064] Embodiment 2: frame_offset=8, sending window w=1

[0065] According to the embodiment of the present invention, the radio frame and subframe at the beginning of the SI transmission window can be expressed by the following formula:

[0066] window_offset=n-1, n=1, 2, 3, 4, 5;

[0067] window_offset=n, when 25>n>=6;

[0068] The wireless frame at the beginning of the sending window: SFN%N=8+floor((window_offset) / 10);

[0069] The start subframe of the sending window: subframe=(window_offset)%10;

[0070] The radio frame and subframe where SI-2 is located satisfy: SFN%16=8, subframe=0, that is, in the #0 subframe of an even frame;

[0071] The radio frame and subframe where SI-3 is located satisfy: SFN%32=8, subframe=1, that is, in the #1 subframe of the even-numbered frame;

[0072] The radio frame and subframe where SI-4 is located satisfy: SFN%64=8, subframe=2, that is, in the #2 subframe of the even-numbered frame;

[0073] The radio frame and subframe where SI-5 is located satisfy:...

Embodiment 3

[0078] Embodiment 3: frame_offset=8, sending window w=1

[0079] In this embodiment, it is assumed that the transmission periods of SI-2 to SI-8 are 80 ms, 160 ms, 320 ms, 640 ms, 640 ms, 1280 ms, and 1280 ms, respectively.

[0080] According to the embodiment of the present invention, the radio frame and subframe at the beginning of the SI transmission window can be expressed by the following formula:

[0081] window_offset=n-1, when n=1, 2, 3, 4, 5;

[0082] window_offset=n, when 25>n>=6;

[0083] Send the wireless frame at the beginning of the window: SFN%N=8+floor((window_offset) / 10);

[0084] When N=8, the radio frame at the beginning of the sending window is modified to: SFN%N=floor((window_offset) / 10);

[0085] The start subframe of the sending window: subframe=(window_offset)%10;

[0086] The radio frame and subframe where SI-2 is located satisfy: SFN%8=0, subframe=0, that is, in the #0 subframe of the even-numbered frame;

[0087] The radio frame and subframe where SI-3 is located ...

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Abstract

The invention discloses a method and a device for receiving system messages as well as a method and a device for confirming the position of a sending window, wherein the method for receiving the system messages comprises the following steps: confirming the window offset of SI according to the following ways: window_offset is equal to n-1, wherein n is less than or equal to 5; window_offset is equal to n, wherein n is less than or equal to 6, wherein n is a dispatching sequence of the SI; confirming a beginning radio frame of the window of the SI according to the following ways: SFN percent N is equal to frame_offset plus floor (window_offset / 10), wherein the SFN is a system frame number of the radio frame, the frame_offset is frame offset and is an even number or zero; and confirming a beginning subframe of the window of the SI according to the following ways: subframe is equal to (window_offset) percent 10, wherein the subframe is a sequence number of the radio subframe.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and device for receiving system messages, and a method and device for determining the position of a sending window. Background technique [0002] In the Long-Term Evolution (LTE) system, system messages can be divided into main system messages (MIB), system message block 1 (SIB1) and general system messages (SI). [0003] Among them, the MIB is sent on the broadcast channel with a fixed sending period of 40 milliseconds, and the MIB is repeatedly sent in the #0 subframe of each wireless frame in the sending period. System message block 1 (SIB1) is sent on the downlink shared channel with a fixed scheduling period of 80 milliseconds. SIB1 meets the #5 subframe of the radio frame with SFN%2=0 in the scheduling period (the subframe number starts from 0) Repeat sending on Other system parameters are included in other system message blocks (SIB). For other SIBs, there are alr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/12H04B7/26
Inventor 杜忠达和峰
Owner 李梦姣