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Carrier management method and system, base station and user equipment

A carrier management and carrier technology, applied in the field of communication, can solve problems such as changing the physical layer structure, unable to support 32 carrier scheduling, and changing the physical layer.

Active Publication Date: 2020-06-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing carrier scheduling method can only support the scheduling of a maximum of 8 carriers, and cannot support the scheduling of a maximum of 32 carriers
To achieve the scheduling of a maximum of 32 carriers, the most direct way is to extend the length of the 3-bit field. However, this will change the structure of the Physical Layer, and the impact of the change is too large for the Physical Layer. Acceptable of

Method used

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  • Carrier management method and system, base station and user equipment
  • Carrier management method and system, base station and user equipment
  • Carrier management method and system, base station and user equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0259] An embodiment of the present invention provides a carrier management method, see image 3 , the method includes:

[0260] Step 101, eNB sends a first reconfiguration message to UE.

[0261] Wherein, the first reconfiguration message is used to indicate at least two carrier groups allocated for the UE, the UE is configured with at least two carriers, the at least two carriers include at least one uplink carrier and at least one downlink carrier, and the at least two carrier groups It is obtained by grouping all the carriers configured to the UE by the eNB, the number of uplink carriers and downlink carriers of each carrier group does not exceed 8, at least two carrier groups include at least one first carrier group, and the first carrier group includes activated The activated carriers in the first carrier group include at least one first downlink carrier. The first downlink carrier is configured with a PDCCH, and the PDCCH carries downlink control information (Downlink ...

Embodiment 2

[0273] An embodiment of the present invention provides a carrier management method, see Figure 4 , the method includes:

[0274] Step 201, eNB sends a first reconfiguration message to UE.

[0275] Wherein, the first reconfiguration message is used to indicate at least two carrier groups allocated for the UE. The eNB configures at least two carriers for the UE, the at least two carriers include at least one uplink carrier and at least one downlink carrier, the at least two carriers are divided into at least two carrier groups, and the number of uplink carriers and downlink carriers in each carrier group No number exceeds 8, and each carrier group includes at least one first downlink carrier. The PDCCH is configured on the first downlink carrier.

[0276] Wherein, the carriers in each carrier group are different.

[0277] Wherein, the total number of carriers configured by the eNB for the UE may be greater than 8 or not greater than 8.

[0278] Wherein, each carrier group ...

Embodiment 3

[0312] An embodiment of the present invention provides a carrier management method, see Figure 5 , the method includes:

[0313] Step 301, eNB sends a first reconfiguration message to UE.

[0314] Wherein, this step 301 is the same as the step 201 in the second embodiment, and will not be repeated here.

[0315] Wherein, the UE receives the second reconfiguration message.

[0316] Step 302, the eNB sends a first carrier activation indication message to the UE.

[0317] In an optional implementation manner, the activated carriers in each first carrier group include at least one first uplink carrier, and the PUCCH is configured on the first uplink carrier.

[0318] The UE receives the first carrier activation indication message.

[0319] Step 303, the eNB sends the PDCCH on the first downlink carrier activated for the UE.

[0320] This step 303 is the same as step 203 in the second embodiment, and will not be repeated here.

[0321] Step 304, the UE receives the PDCCH on ...

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Abstract

The embodiment of the invention provides a carrier management method and system, a base station and user equipment, and relates to the field of communication. According to the method, the base stationsends a first reconfiguration message to the UE; the first reconfiguration message is used for indicating at least two carrier groups allocated to the UE; the UE is configured with at least two carriers; the at least two carriers comprise at least one uplink carrier and at least one downlink carrier; the at least two carrier groups are obtained by grouping all carriers configured to the UE by thebase station; the number of uplink carriers and the number of downlink carriers of each carrier group do not exceed 8; the at least two carrier groups comprise at least one first carrier group; the first carrier group comprises activated carriers; the activated carriers in the first carrier group comprise at least one first downlink carrier; the first downlink carrier is configured with a physical downlink control channel PDCCH; the PDCCH carries downlink control information DCI; the DCI is used for scheduling the activated carriers in the carrier group where the first downlink carrier is located; and the PDCCH is sent on the first downlink carrier.

Description

technical field [0001] The present invention relates to the communication field, in particular to a carrier management method, system, base station and user equipment. Background technique [0002] In a communication system, such as a long term evolution system (Long Term Evolution, LTE for short), a carrier aggregation (also called carrier aggregation) (Carrier Aggregation, CA for short) technology appears. CA means that a base station (Evolved Node B, eNB for short) aggregates multiple carriers together to provide services for user equipment (User Equipment, UE for short), so as to improve throughput of an air interface. [0003] At present, the LTE system introduces the aggregation of up to 5 carriers, that is to say, an eNB can configure up to 5 carriers for a UE, each carrier has a bandwidth of 20M, and 5 carriers can reach a bandwidth of 100M. For this reason, when the Physical Downlink Control Channel (PDCCH for short) schedules the carrier configured for the UE, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/12
CPCH04W28/16
Inventor 李亚娟张兴炜柴丽常俊仁
Owner HUAWEI TECH CO LTD