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

A carrier aggregation and determination method 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: 2022-06-24
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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  • Primary cell determination method, network equipment and communication system based on carrier aggregation
  • Primary cell determination method, network equipment and communication system based on carrier aggregation
  • Primary cell determination method, network equipment and communication system based on carrier aggregation

Examples

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Embodiment 1

[0049] Please refer to figure 1 , figure 1 This is a flowchart of an embodiment of a method for determining a primary cell based on carrier aggregation of the present invention, and the method is described by taking the network device side as an example. like figure 1 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 utilize the measurement reports of each carrier cell and the LBT detection results to determine the primary cell, the base station gNB configures the LBT detection process in advance, including information such as the period of the LBT detection. For example, the base station gNB is pre-configured to periodically perform LBT detection according to the time interval T.

[0052] St...

Embodiment 2

[0066] Embodiment 1 discloses the technical solution of using the measurement report and the LBT detection result to make handover decision at the same time, and this embodiment describes the specific implementation process in detail.

[0067] On the base station gNB side, 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 parameter 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 gNB side of the base station, each carrier cell in the carrier cell group records the latest LBT detection parameters, and the latest LBT detection parameters can meet the handover requirements. When the judgment condition is used, it is used to make a handover judgment.

[0068] Specifically, i...

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 probe, it is considered that the handover decision condition is satisfied, and the handover decision is executed. 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 currently received measurement report; When the handover decision condition is satisfied, the LBT detection parameter is updated according to the current LBT detection result; and the target primary cell is determined according to the updated LBT detection parameter and the measurement report saved at the current moment. This process, when implemented, can include the following steps:...

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Abstract

The invention discloses a method for determining a primary cell based on carrier aggregation, a network device and a communication system. The method includes the following steps: performing LBT detection on the carrier cell group where the user equipment is located according to pre-configuration and recording the LBT detection result; receiving the user equipment The uploaded measurement report, the measurement report includes the wireless measurement results of each carrier cell in the carrier cell group; when the handover judgment condition is met, the target primary cell is determined according to the measurement report and the LBT detection result. Compared with the prior art, the present invention comprehensively considers the channel quality and LBT success rate of each carrier cell to determine the primary cell. This method increases the probability that the carrier cell with a higher LBT success rate is selected as the primary cell, thereby avoiding In the communication system of the unlicensed spectrum multi-carrier system, frequent LBT failures in the main cell cause the transmission of key control information to be blocked, which effectively improves the transmission efficiency and reliability of the system.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and in particular, to a method for determining a primary cell based on carrier aggregation, a network device 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 licensed spectrum is dedicated to the 5G system, and other communication services are not allowed to occupy it. In addition to the licensed spectrum, there are also a large number of unlicensed spectrum resources, which can be shared and used 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 beneficial supplements to licensed spectrum and have great use value. [0003] 3GPP introduced access support for unlicensed s...

Claims

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Application Information

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Patent Type & Authority Patents(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