A carrier management method

Abstract

The present application discloses a carrier management method, which is based on the condition that the signal strength difference between Pcell and neighboring cells (including Scell) is within a certain threshold, that is, only based on the A3 measurement report, to realize carrier management. The present invention can reduce the number of measurement events required for carrier management, thus effectively reducing the processing complexity of the terminal, reducing the overhead of air interface signaling, and avoiding frequent addition and deletion of Scells.

Description

technical field [0001] The mobile communication technology of the present invention particularly relates to a carrier management method in a carrier aggregation scenario. Background technique [0002] In the future, a new generation of wireless communication systems should meet the transmission characteristics of the highest 1Gbps rate to support various new data services that continue to emerge. Among several key technologies of LTE-A (LTE-Advanced), carrier aggregation technology is to improve the data transmission rate. the most direct method. [0003] One of the key issues of carrier aggregation technology is carrier management. Carrier management mainly includes Pcell change, Scell ​​addition / deletion, activation / deactivation and Scell ​​change operations. When an LTE-Advanced user establishes or reestablishes an RRC connection for the first time, only one cell can be configured, the cell is the primary cell (Primary Cell, Pcell), and its corresponding component carrie...

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Problems solved by technology

[0013] 1. There are too many measurement event configurations, complex processing, increasing the complexity of terminal processing and measurement, and occupying a large number of limited measurement resources (up to 32 measurement identities on the air interface)

[0014] 2. Frequent addition and deletion of Scells, especially reconfiguration at the edge of the cell increases the probability of user disconnection (for example, if the terminal moves from the center of the cell to the edge of the cell, it is judged by the A2 event that the current Scell ​​needs to be deleted, and the Scell ​​is realized through reconfiguration. Deletion, when the terminal returns to the center of the cell from the edge of the cell, it is judged by the A4 event that the cell needs to be added as a Scell, and then the reconfiguration realizes the addition of the Scell, resulting in frequent addition and deletion of the Scell)

[0016] It can be seen that in the traditional carrier management method, due to the many measurement events involved, the processing at the terminal is complicated, the frequent addition and deletion of Scells, and the overhead of air interface resources are high.

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