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Method and device for identifying carrier wave type

A technology of carrier type and identification method, applied in the directions of devices dedicated to receivers, separation devices of transmission paths, transmission modification based on link quality, etc.

Active Publication Date: 2013-11-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Embodiments of the present invention provide a carrier type identification method and device for solving the problem of how a terminal identifies a carrier type

Method used

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  • Method and device for identifying carrier wave type
  • Method and device for identifying carrier wave type
  • Method and device for identifying carrier wave type

Examples

Experimental program
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Effect test

Embodiment 1

[0272] In the FDD system, taking the conventional CP as an example, a time slot contains 7 OFDM symbols:

[0273] For legacy carriers, PSS is transmitted in the last OFDM symbol of the first slot of subframes 0 and 5, SSS is transmitted in the second last OFDM symbol of the first slot of subframes 0 and 5, and PBCH is transmitted in subframes The first 4 OFDM symbols of the second time slot of 0 are transmitted, then the OFDM symbol where the PSS is located is adjacent to the first OFDM symbol where the PBCH is located (that is, the OFDM symbol where the SSS is located is adjacent to the first OFDM symbol where the PBCH is located) The first OFDM symbol is separated by 1 OFDM symbol;

[0274] For NCT carrier, it is assumed that PSS is transmitted in the 3rd OFDM symbol of the 1st slot of subframes 0 and 5, SSS is transmitted in the 2nd OFDM symbol of the first slot of subframes 0 and / 5, and the PBCH If the transmission location is the same as the legacy carrier, the OFDM sym...

Embodiment 2

[0277] In the FDD system, taking the conventional CP as an example, a time slot contains 7 OFDM symbols:

[0278]For legacy carriers, PSS is transmitted in the last OFDM symbol of the first slot of subframes 0 and 5, SSS is transmitted in the second last OFDM symbol of the first slot of subframes 0 and 5, and PBCH is transmitted in subframes The first 4 OFDM symbols of the second time slot of 0 are transmitted; then the relative positions of PSS / SSS and PBCH satisfy: 1) the OFDM symbol where the PSS and SSS are located is ahead of the OFDM symbol where the PBCH is located; 2) the location where the PSS and SSS are located The OFDM symbol and the OFDM symbol where the PBCH is located are both in subframe 0; 3) The OFDM symbol where the PSS and SSS are located and the OFDM symbol where the PBCH is located are both in subframe 0, and the OFDM symbol where the PSS and SSS are located is ahead of the PBCH in the time domain. OFDM symbol; 4) The OFDM symbol where the PSS and SSS are...

Embodiment 3

[0282] In the FDD system, taking the conventional CP as an example, a time slot contains 7 OFDM symbols:

[0283] For legacy carriers, PSS is transmitted in the last OFDM symbol of the first slot of subframes 0 and 5, SSS is transmitted in the second last OFDM symbol of the first slot of subframes 0 and 5, and PBCH is transmitted in subframes The first 4 OFDM symbols of the second time slot of 0 are transmitted; then the relative positions of PSS / SSS and PBCH satisfy: 1) The OFDM symbol where the PSS is located is adjacent to the first OFDM symbol where the PBCH is located (that is, the interval is 0 OFDM symbol), the OFDM symbol where the SSS is located is separated from the first OFDM symbol where the PBCH is located by 1 OFDM symbol; 2) The OFDM symbol where the PSS and SSS are located is ahead of the OFDM symbol where the PBCH is located; 3) The OFDM symbol where the PSS and SSS are located is the same as the OFDM symbol where the PBCH is located. The OFDM symbols where th...

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Abstract

The invention discloses a method and device for identifying a carrier wave type and relates to the technical field of wireless communication. The method and device are used for solving the problem how to indentify the carrier wave type by a terminal. According to the embodiment, the terminal can determine the type of a current carrier wave according to the position relation between the resource where a detected synchronous signal on the current carrier wave is located and the resource where a detected PBCH is located, or according to the PBCH detected on the current carrier wave, or according to the position relation between the resource where the synchronous signal detected on the current carrier wave is located and the resource where a detected CRS is located, or according to a transmission subframe of the CRS on the current carrier wave, or according to a frequency domain resource used for transmitting the synchronous signal detected on the current carrier wave. Therefore, the problem how to identify the type of the carrier wave by the terminal is solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, and in particular, to a method and device for identifying a carrier type. Background technique [0002] In the Long Term Evolution-Advanced (LTE-A) system, the peak rate of the system is greatly improved compared to the Long Term Evolution (Long Term Evolution, LTE) system, and it is required to reach 1 Gbps in downlink and 500 Mbps in uplink. Therefore, the LTE-A system needs to expand the available bandwidth of the terminal, that is, to aggregate multiple continuous or discontinuous carriers under the same base station (eNB), and serve the user equipment (User Equipment, UE) at the same time to provide the required rate, such as figure 1 shown. These aggregated carriers are also called component carriers (Component Carrier, CC). Each cell can be a component carrier, and cells (component carriers) under different eNBs cannot be aggregated. In order to ensure that the UE in the L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L5/00
CPCH04L5/0007H04L1/0039H04L1/0091H04L27/26H04L5/0023H04L5/0053
Inventor 高雪娟潘学明
Owner DATANG MOBILE COMM EQUIP CO LTD
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