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Cross-carrier scheduling method and device

A cross-carrier scheduling and carrier technology, applied in the field of communication, can solve the problem of waste of sub-frame resources in the upper time domain, and achieve the effect of improving resource utilization and expanding length

Active Publication Date: 2018-05-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a cross-carrier scheduling method and device to solve the problem of resource waste of some subframes in the time domain existing in the existing cross-carrier scheduling

Method used

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  • Cross-carrier scheduling method and device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0059] like figure 2 As shown, a cross-carrier scheduling method according to the second embodiment of the present invention includes:

[0060] Step 101, receiving a cross-carrier scheduling instruction sent by a base station under a first carrier;

[0061] Step 102, according to the cross-carrier scheduling indication, determine the cross-carrier scheduling time indicated by the base station;

[0062] Step 103, adding a delay time to the carrier scheduling time indicated by the base station to determine the actual cross-carrier scheduling time;

[0063] Step 104, use the second carrier to perform communication between user terminals within the actual cross-carrier scheduling time.

[0064] Through steps 101 to 104, the user terminal UE receives the cross-carrier scheduling indication sent by the eNB under the first carrier communicated with the base station eNB, and then determines the cross-carrier scheduling time indicated by the eNB according to the cross-carrier scheduli...

no. 2 example

[0088] like Figure 6 As shown, the cross-carrier scheduling method according to the second embodiment of the present invention includes:

[0089] Step 201, receiving DCI transmitted by PDCCH / EPDCCH in all downlink subframes and special subframes under the first carrier;

[0090] Step 202, acquiring a cross-carrier scheduling indication carried in the DCI, wherein the cross-carrier scheduling indication occupies at least 2 bits in the DCI;

[0091] Step 203, according to the cross-carrier scheduling indication, determine the cross-carrier scheduling time indicated by the base station;

[0092] Step 204, adding a delay time to the carrier scheduling time indicated by the base station to determine the actual cross-carrier scheduling time;

[0093] Step 205, within the actual cross-carrier scheduling time, use the second carrier to perform communication between user terminals.

[0094] In this embodiment, all downlink subframes and special subframes are endowed with cross-carr...

no. 3 example

[0107] like Figure 10 As shown, the cross-carrier scheduling device according to the third embodiment of the present invention includes:

[0108] The receiving module 1001 is configured to receive the cross-carrier scheduling instruction sent by the base station under the first carrier;

[0109] The first determining module 1002 is configured to determine the cross-carrier scheduling time indicated by the base station according to the cross-carrier scheduling indication;

[0110] The first processing module 1003 adds a delay time to the carrier scheduling time indicated by the base station to obtain the actual cross-carrier scheduling time;

[0111] The communication module 1004 is configured to use the second carrier to perform communication between user terminals within the actual cross-carrier scheduling time.

[0112] Wherein, the cross-carrier scheduling device also includes:

[0113] The second processing module is configured to obtain the next cross-carrier scheduli...

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Abstract

The invention provides a cross-carrier scheduling method and device, and relates to the technical field of communications. The cross-carrier scheduling method comprises the following steps: receivinga cross-carrier scheduling instruction transmitted by a base station under a first carrier; determining the cross-carrier scheduling time instructed by the base station according to the cross-carrierscheduling instruction; adding delay time to the cross-carrier scheduling time instructed by the base station, and determining the actual cross-carrier scheduling time; and using a second carrier to perform communication between user terminals within the actual cross-carrier scheduling time. The scheme of the invention solves the problem of resources wasting of partial sub-frames in the time domain in the existing cross-carrier scheduling.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a cross-carrier scheduling method and device. Background technique [0002] In the approved Internet of Vehicles system standard, the contents of the new downlink control information DCI field are shown in Table 1, where u is the number of corresponding sub-channels under different bandwidth conditions: [0003] [0004] Table 1 [0005] In order to be compatible with all standards, the DCI in the Internet of Vehicles needs to keep the same length as the previous DCI format 0 / 1A. Therefore, it is necessary to pad zero on the DCI of the Internet of Vehicles to ensure the same length. If the zero padding is required for other purposes later, the zero bits can be replaced with other information fields. [0006] For a full-duplex communication technology used in mobile communication systems, in time-division duplex TDD mode, when the user terminal UE detects that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W72/04
CPCH04W72/0453H04W72/23H04L5/0053H04L5/001H04L5/0094H04W72/0446H04L5/00H04W72/535H04W72/53
Inventor 马腾赵锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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