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Carrier type identification method and device

A carrier type and identification method technology, applied to the separation device of transmission path, signaling distribution, digital transmission system, etc.

Active Publication Date: 2017-04-19
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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  • Carrier type identification method and device
  • Carrier type identification method and device
  • Carrier type identification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0272] In the FDD system, taking the conventional CP as an example, one 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 penultimate OFDM symbol of the first slot of subframes 0 and 5, and PBCH is transmitted in the subframe 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 interval is 0 OFDM symbols), and the OFDM symbol where the SSS is located is adjacent to the first OFDM symbol where the PBCH is located. The interval between the first OFDM symbol is 1 OFDM symbol;

[0274] For the NCT carrier, it is assumed that the PSS is transmitted in the third OFDM symbol of the first slot of subframes 0 and 5, the SSS is transmitted in the second OFDM symbol of the first slot of subframe 0 and / 5, and the PBCH The transmiss...

Embodiment 2

[0277] In the FDD system, taking the conventional CP as an example, one 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 penultimate OFDM symbol of the first slot of subframes 0 and 5, and PBCH is transmitted in the subframe 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) OFDM symbols where PSS and SSS are located are ahead of OFDM symbols where PBCH is located; 2) where PSS and SSS are located The OFDM symbols where the OFDM symbols and PBCH are located are both in subframe 0; 3) The OFDM symbols where PSS and SSS are located and the OFDM symbols where PBCH is located are both in subframe 0, and the OFDM symbols where PSS and SSS are located are ahead of PBCH in the time domain OFDM symbol; 4) The OFDM symbol where PSS and SSS are located and the OFDM symbol where PBCH is locat...

Embodiment 3

[0282] In the FDD system, taking the conventional CP as an example, one 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 penultimate OFDM symbol of the first slot of subframes 0 and 5, and PBCH is transmitted in the subframe The first 4 OFDM symbols of the second time slot of 0 are transmitted; then the relative position of PSS / SSS and PBCH satisfies: 1) The OFDM symbol where PSS is located is adjacent to the first OFDM symbol where 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 The OFDM symbols where PBCH is located are all in subframe 0; 4) The OFDM symbols where PS...

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Abstract

Disclosed are a method and a device for recognizing the type of carrier wave. The embodiment of the present invention relates to the wireless communication technology field, and solves the problem how to recognize the type of carrier wave. In this invention, based on the location relationship between resources where a detected synchronous signal and a detected Physical Broadcast Channel (PBCH) are on the current carrier wave, or the detected PBCH on the current carrier wave, or the location relationship between resources where the detected synchronous signal and a detected Cell-specific Reference Signals (CRS) are on the current carrier wave, or the transmission sub frame of the detected CRS on the current carrier wave, or a frequency domain used by the detected synchronous signal on the current carrier wave, the type of the current carrier wave can be determined by a terminal, and the problem how to recognize the type of carrier wave can be solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a carrier type identification method and equipment. Background technique [0002] In the Long Term Evolution-Advanced (LTE-A) system, the peak rate of the system is greatly improved compared with the Long Term Evolution (LTE) system, and it is required to reach 1Gbps downlink and 500Mbps 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 LTE system can work on each aggreg...

Claims

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Application Information

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