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Main cell determination method based on carrier aggregation, network equipment and communication system

A determination method and carrier aggregation technology, applied in wireless communication, electrical components, etc., can solve problems such as poor system reliability and low transmission efficiency, and achieve the effect of improving transmission efficiency and reliability

Active Publication Date: 2022-04-22
广东世炬网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, it is necessary to provide a primary cell determination method, network equipment and communication system based on carrier aggregation, so as to solve the problem of low transmission efficiency and poor system reliability of the primary cell determination method in the prior art in an unlicensed spectrum multi-carrier system technical problem

Method used

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  • Main cell determination method based on carrier aggregation, network equipment and communication system
  • Main cell determination method based on carrier aggregation, network equipment and communication system
  • Main cell determination method based on carrier aggregation, network equipment and communication system

Examples

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Embodiment 1

[0049] Please refer to figure 1 , figure 1 It is a flowchart of an embodiment of a method for determining a primary cell based on carrier aggregation in the present invention, and the method is described by taking the network device side as an example. Such as figure 1 As shown, it includes the following steps:

[0050] Step S101, perform LBT detection on the carrier cell group where the user equipment is located according to the pre-configuration and record the LBT detection result.

[0051] In this embodiment, the LBT detection is initiated by the base station gNB side. In order to comprehensively use the measurement reports of each carrier cell and the LBT detection results to determine the primary cell, the base station gNB pre-configures the LBT detection process, including information such as the cycle of the LBT detection. For example, the base station gNB is pre-configured to perform LBT detection periodically according to the time interval T.

[0052] Step S102, r...

Embodiment 2

[0066] Embodiment 1 discloses a technical solution for making handover decisions by using both measurement reports and LBT detection results, and this embodiment describes in detail its specific implementation process.

[0067] On the side of the base station gNB, the base station gNB configures an LBT detection parameter for each carrier cell of the carrier cell group. After each LBT detection, the base station gNB calculates the LBT detection parameters corresponding to each carrier cell according to the LBT detection result and the preset calculation method. And update the LBT detection parameters before this LBT detection according to the calculation results, so that on the side of the base station gNB, each carrier cell in the carrier cell group has the latest LBT detection parameters recorded, and the latest LBT detection parameters can meet the handover When judging conditions, it is used for handover judgment.

[0068] Specifically, if the LBT of a certain carrier cell...

Embodiment 3

[0087] Embodiment 1 records that when the base station gNB receives the measurement report uploaded by the user equipment UE or the base station gNB performs an LBT detection, it considers that the handover decision condition is satisfied, and executes the handover decision. This embodiment describes its specific implementation in detail.

[0088] Specifically, when the measurement report uploaded by the user equipment is received and the handover decision condition is satisfied, the target primary cell is determined according to the LBT detection parameters saved at the current moment and the measurement report currently received; when the LBT detection is performed once and the When the handover decision condition is met, update the LBT detection parameters according to the current LBT detection result; and determine the target primary cell according to the updated LBT detection parameters and the measurement report saved at the current moment. This process, when implemented...

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Abstract

The invention discloses a main cell determination method based on carrier aggregation, network equipment and a communication system. The method comprises the following steps: carrying out LBT detection on a carrier cell group where user equipment is located according to pre-configuration and recording an LBT detection result; receiving a measurement report uploaded by the user equipment, wherein the measurement report comprises a wireless measurement result of each carrier cell in the carrier cell group; and determining a target main cell according to the measurement report and the LBT detection result when the switching judgment condition is met. Compared with the prior art, the method has the advantages that the main cell is determined by comprehensively considering the channel quality and the LBT success rate of each carrier cell, so that the possibility that the carrier cell with a higher LBT success rate is selected as the main cell is increased, and the problem that the main cell has a higher LBT success rate in a communication system of an unlicensed spectrum multi-carrier system is avoided. And the transmission of the key control information is blocked due to frequent LBT failure of the main cell, so that the transmission efficiency and the reliability of the system are effectively improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for determining a primary cell based on carrier aggregation, network equipment and a communication system. Background technique [0002] The 5G wireless NR system introduced in the 3GPP R15 standard is a communication technology used on licensed spectrum resources. The authorized spectrum is dedicated to the 5G system and cannot be occupied by other communication services. In addition to the licensed spectrum, there are also a large number of unlicensed spectrum resources, which can be shared by all parties. Compared with licensed spectrum resources, unlicensed spectrum resources have gaps in seamless coverage, high spectrum efficiency, high peak rate and reliability, but their rich spectrum resources are a useful supplement to licensed spectrum resources and have great use value. [0003] 3GPP introduced support for access to unlicensed spectrum i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W74/08H04W24/10H04W36/30H04W72/08H04W72/54
CPCH04W24/08H04W24/10H04W36/30H04W74/0808H04W72/542
Inventor 林力宋怡昕陈瑞欣姚坤杰
Owner 广东世炬网络科技有限公司