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Method and device for user terminal to select primary carrier in carrier aggregation technology

A user terminal and carrier aggregation technology, applied in the field of communication, can solve problems such as increased network signaling overhead and unbalanced cell network load, so as to avoid unbalanced network load, avoid increase of network signaling overhead, and choose balanced Effect

Active Publication Date: 2018-03-23
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since user terminals generally choose a cell with a better signal for standby, it is difficult to avoid user terminals concentrating on a certain carrier for standby, resulting in an unbalanced network load in the cell
Although the load balance of the cell can be achieved by handover after the user terminal accesses the network, the handover process will increase the signaling overhead of the network

Method used

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  • Method and device for user terminal to select primary carrier in carrier aggregation technology
  • Method and device for user terminal to select primary carrier in carrier aggregation technology
  • Method and device for user terminal to select primary carrier in carrier aggregation technology

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Embodiment Construction

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0037] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0039] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The embodiment of the invention discloses a method and device for a user terminal to select a main carrier in the carrier aggregation technology. The method comprises the steps that signal strength weighing integral values of current signal strengths of all frequencies in a received network signal and historical signal strengths in the prior preset time period are acquired, a physical downlink control channel (PDCCH) is monitored, decoding is conducted on the PDCCH, and the dispatching information of cell physical resources is acquired, wherein the dispatching information of the cell physical resources comprises allocation information of frequencies and slot time resources; the main carrier is selected comprehensively according to the signal strength weighing integral values of the frequencies and the dispatching information of the cell physical resources. By means of the method and device, the situation that unbalance of network loads is caused due to the fact that user terminals are concentrated on some carrier to be in a standby state can be avoided.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method and device for a user terminal to select a main carrier in carrier aggregation technology. Background technique [0002] With the rapid development of mobile communication technology, Long Term Evolution (LTE) technology is evolving to LTE-Advanced (LTE-Advance), and a main technical feature of LTE-Advance is that it can realize carrier aggregation. Carrier aggregation technology provides users with higher rates by aggregating multiple carriers. In theory, carrier aggregation technology supports both uplink carrier aggregation and downlink carrier aggregation. However, due to technical limitations, carrier aggregation technology currently only provides downlink carrier aggregation. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] Since the uplink carrier aggregatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L27/26
CPCH04L5/003H04L27/2601
Inventor 林衡华李路鹏熊尚坤
Owner CHINA TELECOM CORP LTD
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