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Carrier aggregation method, and capability information reporting method and device

A technology of capability information and carrier aggregation, applied in the field of communication, can solve problems such as poor performance and achieve the effect of improving performance

Active Publication Date: 2015-06-03
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a carrier aggregation method, a capability information reporting method, and a device, which are used to solve the problem of poor performance in the prior art of using an unlicensed frequency band for communication through carrier aggregation.

Method used

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  • Carrier aggregation method, and capability information reporting method and device
  • Carrier aggregation method, and capability information reporting method and device
  • Carrier aggregation method, and capability information reporting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] In Example 1, such as Figure 5AAs shown, in carrier aggregation, the main carrier is a carrier in the licensed frequency band, and the secondary carrier is a carrier in the unlicensed frequency band, and the main carrier adopts frequency division duplexing (FDD, Frequency Division Duplexing), where U represents an uplink subframe, D represents a downlink subframe, the auxiliary carrier adopts a pure downlink mode, that is, only performs downlink transmission, and D represents a downlink subframe.

[0085] Figure 6 It is a flowchart of a carrier aggregation method using an unlicensed frequency band in Embodiment 1 of the present invention, specifically including the following steps:

[0086] In step 601, the terminal acquires first capability information indicating whether it supports simultaneous uplink transmission on the primary carrier and downlink reception on the secondary carrier.

[0087] The first capability information may be pre-configured on the terminal ...

Embodiment 2

[0096] In Example 2, such as Figure 7A As shown, in carrier aggregation, the main carrier is a carrier in the licensed frequency band, and the secondary carrier is a carrier in the unlicensed frequency band, and the main carrier adopts frequency division duplexing (FDD, Frequency Division Duplexing), where U represents an uplink subframe, D represents a downlink subframe, and the auxiliary carrier adopts Time Division Duplexing (TDD, Time Division Duplexing), where U represents an uplink subframe, D represents a downlink subframe, and S represents a special subframe, which includes a downlink pilot time slot DwPTS , the guard interval GP and the uplink pilot time slot UpPTS.

[0097] Figure 8 It is a flowchart of a carrier aggregation method using an unlicensed frequency band in Embodiment 2 of the present invention, specifically including the following steps:

[0098] Step 801, the terminal obtains the first capability information of whether it supports simultaneous uplin...

Embodiment 3

[0116] In Example 3, such as Figure 9A As shown, in carrier aggregation, the primary carrier is a carrier in the licensed frequency band, and the secondary carrier is a carrier in the unlicensed frequency band, and the primary carrier adopts TDD, where U represents an uplink subframe, D represents a downlink subframe, and S represents a special subframe Frame, the special subframe includes downlink pilot time slot DwPTS, guard interval GP and uplink pilot time slot UpPTS, the auxiliary carrier adopts pure downlink mode, that is, only downlink transmission is performed, and D indicates downlink subframe.

[0117] Figure 10 It is a flowchart of a carrier aggregation method using an unlicensed frequency band in Embodiment 3 of the present invention, specifically including the following steps:

[0118] Step 1001, the terminal acquires first capability information indicating whether it supports simultaneous uplink transmission on the primary carrier and downlink reception on the...

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Abstract

Disclosed are a method for carrier aggregation and a method and device for capability information reporting, comprising: the network side receives the first capability information reported from the receiver and indicating whether the terminal supports simultaneous uplink transmission on the primary carrier and downlink reception on the secondary carrier, wherein the primary carrier is a carrier of authorized frequency band and the secondary carrier is a carrier of authorization-free frequency band; when the first capability information indicates that the terminal does not support simultaneous uplink transmission on the primary carrier and downlink reception on the secondary carrier, using downlink sub frame on the secondary carrier corresponding to the uplink transmission position of the primary carrier to communicate with the terminal is prohibited.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a carrier aggregation method, a capability information reporting method and a device. Background technique [0002] The existing Long Term Evolution (LTE, Long Term Evolution) system can only work in the authorized frequency band assigned to the cellular mobile communication system defined by the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) standardization organization, but with the mobile With the rapid development of Internet services, the traffic volume is increasing, and the existing licensed frequency bands are gradually unable to meet the frequency requirements of the LTE system. [0003] The existing LTE system can only work in the licensed frequency band (licensed, the frequency is allocated to fixed users, exclusive) allocated to the cellular mobile communication system. With the shortage of frequency resources, the license...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/003H04W72/0453H04W72/21H04W72/00H04L5/001H04L5/0044H04L5/0091H04L5/1469
Inventor 李男胡臻平刘光毅黄宇红
Owner CHINA MOBILE COMM GRP CO LTD