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Downlink dispatching information configuring method and equipment

A technology for scheduling information and terminal equipment, applied in the field of communication, can solve problems such as information loss, improve flexibility, ensure backward compatibility and system performance, and avoid the conflict between the carrier aggregation transmission mode and the DC carrier position.

Active Publication Date: 2012-05-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The present invention provides a configuration method and equipment for downlink scheduling information, which solves the problem of information loss caused by the conflict between the carrier aggregation transmission mode corresponding to the terminal equipment and the position of the DC carrier

Method used

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  • Downlink dispatching information configuring method and equipment
  • Downlink dispatching information configuring method and equipment
  • Downlink dispatching information configuring method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] Embodiment 1. The downlink aggregation bandwidth configuration in the current system is set to 30MHz (the specific configuration composition is 10MHz+20MHz).

[0109] like Figure 4 As shown in , it is a schematic diagram of downlink aggregation bandwidth configuration in Embodiment 1 of the present invention. Assuming that the edge guard band is symmetrical, the downlink aggregated bandwidth configured as 10MHz component carrier 1 includes 600 subcarriers and 1 empty subcarrier (that is, the central carrier of component carrier 1), and the downlink aggregated bandwidth configured as 20MHz component carrier 2 includes There are 1200 subcarriers and 1 empty subcarrier (that is, the central carrier of CC2), and the number of empty subcarriers between CC1 and CC2 is 19.

[0110] Based on the above-mentioned downlink aggregation bandwidth configuration, the corresponding processing is as follows:

[0111] First, the base station acquires the current downlink aggregated ba...

Embodiment 2

[0128] Embodiment 2, setting the downlink aggregation bandwidth configuration in the current system to 50MHz (the specific configuration composition is 20MHz+10MHz+20MHz)

[0129] like Figure 5 As shown in , it is a schematic diagram of downlink aggregation bandwidth configuration in Embodiment 2 of the present invention. Assuming that the edge guard band is symmetrical, the downlink aggregated bandwidth configured as 20MHz component carrier 1 includes 1200 subcarriers and 1 empty subcarrier (that is, the central carrier of component carrier 1), and the downlink aggregated bandwidth is configured as 10MHz component carrier 2 includes 600 subcarriers and 1 empty subcarrier (that is, the central carrier of component carrier 2), and the downlink aggregation bandwidth configuration is 20MHz. The number of vacant subcarriers between 1 and component carrier 2, and between component carrier 2 and component carrier 3 is 19.

[0130] Based on the above-mentioned downlink aggregation...

Embodiment 3

[0164] Embodiment 3: The downlink aggregation bandwidth configuration in the current system is set to 30MHz (the specific configuration composition is 20MHz+10MHz).

[0165] like Image 6 As shown in , it is a schematic diagram of downlink aggregation bandwidth configuration in Embodiment 3 of the present invention.

[0166] In this case, the base station can virtualize the original 20MHz+10MHz asymmetric downlink aggregation carrier configuration into a 20MHz+20MHz symmetric downlink aggregation carrier configuration. The downlink scheduling information requires terminal equipment with a receiver processing capability of 20MHz+20MHz to receive signals. In this way, when the terminal equipment down-converts, the DC carrier falls in the center of the two component carriers, avoiding conflicts with the DC carrier.

[0167] Similar to this, the downlink aggregation bandwidth configuration of B+A can also be processed according to a similar process, and the description will not b...

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Abstract

The invention discloses a downlink dispatching information configuring method and equipment. According to the technical scheme provided by the embodiment of the invention, network side equipment can determine whether corresponding terminal equipment has a problem that the carrier aggregation transmission mode conflicts with the direct current carrier position or not according to corresponding carrier aggregation deployment information, and downlink dispatching information configuration is carried out on the terminal equipment according to a corresponding strategy when the problem exists, thus the problem that the carrier aggregation transmission mode conflicts with the direct current carrier position is avoided occurring, the flexibility of the carrier aggregation transmission mode is promoted, the downward compatibility and the system performance are ensured, and the information loss brought by the conflict between the carrier aggregation transmission mode and the direct current carrier position can be avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a configuration method and equipment for downlink scheduling information. Background technique [0002] like figure 1 Shown is a schematic structural diagram of the Rel-8 downlink carrier channel bandwidth in the prior art. In the LTE (Long Term Evolution, Long Term Evolution) Rel-8 downlink carrier, an extra empty subcarrier (without carrying any information) is inserted in the middle of the downlink useful subcarrier. [0003] The reason for this treatment is that the receiver of the actual terminal equipment may directly down-convert the frequency when it is designed, and after the down-conversion, the central carrier is a DC carrier, and the information on it will be lost. Therefore, if the central carrier does not contain any information, it can be Avoid corresponding loss of information. [0004] In LTE-A, carrier aggregation technology is used to support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/12H04W72/54
Inventor 邱海杰赵锐宋月霞
Owner DATANG MOBILE COMM EQUIP CO LTD
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