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A terminal capability acquisition method in a dual connection system

A technology of terminal capability and acquisition method, applied in the field of communication, can solve problems such as judgment, and achieve the effect of reducing handover interruption delay, simple and effective implementation, and increasing handover delay

Active Publication Date: 2022-04-29
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the frequency band combination in the capability information is not the complete set of frequency band combinations supported by the terminal, the terminal capability carried in the handover request may not include the frequency band combination of the target LTE cell and its secondary NR cell
At this time, the target LTE base station cannot judge whether the NR secondary cell should be configured for the terminal based on the terminal capability.

Method used

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  • A terminal capability acquisition method in a dual connection system
  • A terminal capability acquisition method in a dual connection system
  • A terminal capability acquisition method in a dual connection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Network architecture description: Base station 1 supports dual connectivity as the main LTE base station. The service frequency of serving cell 2 belongs to frequency band 3, and there is a different-frequency adjacent cell 4. The service frequency of this adjacent cell belongs to frequency band 5; The NR neighbor cell 6 of the standby secondary cell of the different system has a service frequency of frequency band 7; cell 4 has a different frequency neighbor cell 8, its service frequency belongs to frequency band 9, and has the same NR neighbor cell 6 as cell 2; 8. There is NR zone 10 as a backup secondary cell for different systems, and its service frequency belongs to frequency band 11; terminal A supports all EN-DC dual connectivity combinations of LTE frequency bands 3, 5, and 9 and NR frequency bands 7 and 11. The architecture diagram of this embodiment is shown in the attached image 3 .

[0026] The flowchart of this embodiment is attached Figure 4 , the proc...

Embodiment 2

[0036] Network architecture description: Base station 1 supports dual connectivity as the main LTE base station. The service frequency of serving cell 2 belongs to frequency band 3, and there is a different-frequency adjacent cell 4. The service frequency of this adjacent cell belongs to frequency band 5; The NR neighbor cell 6 of the standby secondary cell of the different system has a service frequency of frequency band 7; cell 4 has a different frequency neighbor cell 8, its service frequency belongs to frequency band 9, and has the same NR neighbor cell 6 as cell 2; In 4, the secondary NR frequency bands 12 and 13 corresponding to the inter-frequency adjacent cell 8 are configured or obtained; cell 8 has NR areas 10 and 11 as inter-system backup secondary cells, and their service frequencies belong to frequency bands 12 and 13 respectively; terminal A All EN-DC dual connectivity combinations for LTE bands 3, 5, 9 and NR bands 7, 12, 13 are supported.

[0037] The flow proc...

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Abstract

The invention discloses a terminal capability acquisition method in a dual-connection system. When a user terminal needs to perform intra-system inter-frequency handover, the first main base station determines whether the target frequency point is in the frequency band combination of the current user terminal capability information. If the frequency band combination capability information corresponding to the target frequency is not found, the user terminal capability information is obtained to obtain the corresponding frequency band combination capability information, and the frequency band combination capability information corresponding to the target frequency obtained from the measurement report or the newly acquired target frequency is attached to the previous user. In the terminal capability information, it is brought to the second master base station in the handover request, and the second master base station measures or configures a different system secondary cell according to whether the different system is configured, and sends the reconfiguration message to the first master base station; the user terminal through the reconfiguration The message accesses the second primary base station and the secondary cell to establish a dual connection. On the premise of not increasing the handover delay, the method can enable the target base station to quickly obtain the frequency band combination, has strong operability, and is simple and effective to implement.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for acquiring terminal capabilities in a dual connection system. Background technique [0002] With the development of electronic technology, a new generation of communication technology is constantly emerging. For operators, communication equipment based on the old generation of communication technology covers a wide range. It will take a certain amount of time for the new generation of communication equipment to gradually replace the old equipment. Therefore, In this process, there will be situations where old and new equipment provide services at the same time. In order to maximize the utilization rate of old and new equipment at the same time and improve user experience, a dual connection technology is invented and used in which the old equipment is used as the coverage layer and the new equipment is used as the capacity layer. For example, in the lat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W36/00H04W36/22
CPCH04W24/10H04W36/0011H04W36/0083H04W36/22H04W36/0069
Inventor 徐先峰段晨东刘来君
Owner CHANGAN UNIV
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