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Method and device of multi-carrier scheduling

A multi-carrier and carrier technology, which is applied in the directions of multiple use of transmission paths, separation devices of transmission paths, digital transmission systems, etc., can solve problems such as affecting the normal scheduling of data and affecting the delay of data transmission.

Active Publication Date: 2015-07-08
HONOR DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current LTE-A system, there are relatively few PDCCHs that can be used, and neither independent PDCCHs nor simple joint coding of PDCCHs can effectively reduce the occupation of PDCCHs. Therefore, when more PDCCHs are needed for scheduling, PDCCHs are used Will be limited, which will affect the normal scheduling of data, and then affect the data transmission delay

Method used

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  • Method and device of multi-carrier scheduling
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  • Method and device of multi-carrier scheduling

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The multi-carrier scheduling configuration message sent by the eNB to the UE indicates that the UE can be scheduled by a PDCCH command to the UE for data transmission and reception. The carrier number of the multiple carriers, the resource block coding method information of the multiple carriers, and the scheduling The number of the carrier where the PDCCH orders of multiple carriers are located. The resource block coding method is that each carrier is coded sequentially. For ease of description, the carrier that the eNB schedules to the UE for data transmission and reception through the PDCCH command is called the first carrier, and the carrier where the PDCCH commands of the multiple first carriers are scheduled is called the second carrier. The following implementations The same term is used in the extension.

[0043] Thereafter, the eNB sends a PDCCH order to the UE on the second carrier. In the PDCCH order, the indication information of the resource block that the UE...

Embodiment 2

[0047] As a variant of Embodiment 1, the multi-carrier scheduling configuration message sent by the eNB to the UE indicates that the coding of the multiple first carriers scheduled by the UE is continuous, and the resource block coding mode of the first carrier is unified for the first carrier Sequence encoding.

[0048] After that, the eNB sends a PDCCH order to the UE on the second carrier. The indication information of the resource blocks that can be used by the UE in the PDCCH order includes the resource block start code and the number of resource blocks, so that the UE can use the resource block on the first carrier. The start code of the resource block and the resource limited by the number of resource blocks.

[0049] For example, the first carrier is carrier 1, 2 and the second carrier is carrier 3. The code of RB on carrier 1, 2 is RB Index=0~49, that is, RB Index=0~24 on carrier 1 and carrier 2 RB Index=25~49; the PDCCH order indicates that the resources that the UE can ...

Embodiment 3

[0052] The multi-carrier scheduling configuration message sent by the eNB to the UE indicates the number of multiple first carriers scheduled by the UE, where the resource block coding mode of the first carrier is based on the second carrier that sends the PDCCH order, and the carrier number pairs are Carriers indicated by the number of the first carriers are sequentially encoded.

[0053] According to the embodiment of the present invention, in specific implementation, all carriers configured for the UE can be scheduled by default, and the number of first carriers is equal to the number of all carriers configured for the UE.

[0054] After that, the eNB sends a PDCCH order to the UE on the second carrier. The indication information of the resource block that can be used by the UE in the PDCCH order includes the resource block start code and the number of resource blocks, so that the UE can use the second carrier. Resources on a carrier defined by the resource block start code and ...

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Abstract

The present invention relates to a method and a device for multicarrier scheduling. The method for multicarrier scheduling includes: sending a multicarrier configuration message to a user equipment UE, where the multicarrier configuration message includes information about multiple first carriers scheduled by using a physical downlink control channel PDCCH command and information about a resource block encoding manner of the first carriers; sending the PDCCH command to the UE over a second carrier, where the PDCCH command includes indication information of a resource block available for the UE, so that the UE schedules resources on the first carriers according to the information about the first carriers, the resource block encoding manner, and the indication information. According to the embodiments of the present invention, allowing an eNB to schedule resources on multiple carriers by using one PDCCH command is implemented, which improves efficiency of using PDCCHs to schedule multiple carriers, relieves PDCCH constraints, and reduces data transmission delay.

Description

Technical field [0001] The present invention relates to wireless communication technology, and more specifically, to a method and equipment for multi-carrier scheduling. Background technique [0002] In order to increase the peak rate of User Equipment (UE), LTE-A introduces the concept of multiple carrier aggregation (Carrier Aggregation, CA). When the UE needs to aggregate multiple carriers to transmit data, the base station (Evolutional NodeB, ENB for short) can allocate multiple serving cells / component carriers (CC for short) to the UE, one of which is used as the primary component carrier (PCC), and the cell where the PCC is located is also called the primary cell (Primary Cell, PCell for short), other CCs are used as secondary component carriers (Secondary Component Carrier, SCC for short), and the cell in which the SCC is located is also called a secondary cell (SCell for short). [0003] In a heterogeneous network, in order to avoid the interference of the physical downlin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
CPCH04L5/00H04W72/1289H04L5/001H04L5/0094H04W72/23
Inventor 权威陈玉华
Owner HONOR DEVICE CO LTD
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