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Handover method and carrier aggregation system

A carrier aggregation and handover request technology, which is applied in multi-frequency code systems, wireless communications, electrical components, etc., can solve the problems of not considering the carrier aggregation handover process between base stations, affecting carrier aggregation application scenarios, etc., and achieve the effect of expanding application scenarios

Active Publication Date: 2019-09-10
NANJING ZHONGXING XIN SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current protocol only supports carrier aggregation and its handover within the base station, but does not consider the handover process of carrier aggregation between base stations, which affects the application scenarios of carrier aggregation

Method used

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  • Handover method and carrier aggregation system
  • Handover method and carrier aggregation system
  • Handover method and carrier aggregation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] figure 2 It is a schematic flowchart of the first switching method according to the embodiment of the present invention, such as figure 2 As shown, secondary cell 1 (SCell1) and secondary cell 2 (SCell2) are both secondary cells in the secondary cell list configured by the source base station for the UE, and the target base station selects SCell1 and SCell3 in the secondary cell list configured by the source base station for the UE is a secondary cell; the first handover method includes:

[0073] Step 201: the source base station receives the measurement report sent by the UE;

[0074] Here, the measurement report includes measurement results of the current cell and the current cell, and measurement results of neighboring cells and neighboring cells, and the measurement results include RSRP, RSRQ, and the like.

[0075] Step 202: the source base station carries the carrier aggregation information in the measurement report in the handover request message, and sends i...

Embodiment 2

[0103] image 3 It is a schematic flowchart of the second switching method of the present invention, such as image 3 As shown, secondary cell 1 (SCell1) and secondary cell 2 (SCell2) are both secondary cells in the secondary cell list configured by the source base station for the UE, and the target base station selects SCell1 and SCell3 in the secondary cell list configured by the source base station for the UE is a secondary cell; the second handover method includes:

[0104] Step 301: the source base station receives the measurement report sent by the UE;

[0105] Here, the measurement report includes measurement results of the current cell and the current cell, and measurement results of neighboring cells and neighboring cells, and the measurement results include RSRP, RSRQ, and the like.

[0106] Step 302: the source base station carries the carrier aggregation information in the measurement report in the handover request message, and sends it to the target base station...

Embodiment 3

[0137] Figure 4 A schematic flowchart of another switching method according to an embodiment of the present invention, as shown in Figure 4 As shown, the another switching method includes:

[0138] Step 401: the source base station receives the measurement report sent by the UE;

[0139] Here, the measurement report includes measurement results of the current cell and the current cell, and measurement results of neighboring cells and neighboring cells, and the measurement results include RSRP, RSRQ, and the like.

[0140] Step 402: the source base station carries the carrier aggregation information in the measurement report in a handover request message, and sends it to the target base station;

[0141] The carrier aggregation information includes: candidate secondary cell information to be aggregated, UE capability information, and a secondary cell list configured by the source base station for the UE, etc.; wherein, the candidate secondary cell information to be aggregat...

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Abstract

The present invention discloses a handover method. A source base station sends a handover request message carrying carrier aggregation information to a target base station; the target base station provides user equipment UE according to the carrier aggregation information and the carrier aggregation information configured by the target base station. Determine the secondary cell; the target base station establishes the secondary cell or interacts with the base station where the secondary cell is located to establish the secondary cell, determines the secondary cell configuration information of the secondary cell, and carries the secondary cell configuration information in the handover request response message is sent to the source base station; the source base station notifies the UE of the secondary cell configuration information. The invention also discloses a carrier aggregation system. By adopting the technical solution of the present invention, handover processing during carrier aggregation between base stations can be realized, thereby expanding the application scenarios of carrier aggregation.

Description

technical field [0001] The present invention relates to a handover technology in a Long Term Evolution (LTE, Long Term Evolution) system, and in particular, to a handover method and a carrier aggregation system. Background technique [0002] After the introduction of carrier aggregation technology into the cellular mobile communication system, user equipment (UE, User Equipment) can obtain the services of base stations (NB, NodeB) from multiple carriers, which doubles the data transmission rate. NB includes evolved general-purpose Road-based radio access network node (eNB, E-UTRAN NodeB). When a UE using carrier aggregation moves, its handover process is more complicated than that of a common single serving carrier, which is mainly reflected in the handover process between the primary cell (PCell, Primary Cell) and the secondary cell (SCell, Secondary Cell). handover, addition / modification / deletion of secondary cells, etc. [0003] The current protocol only supports intra-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08H04L27/26
CPCH04W36/0085
Inventor 章正权
Owner NANJING ZHONGXING XIN SOFTWARE CO LTD