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A drb mapping method and device

A mapping method and mapping method technology, applied in the field of communication, can solve the problems of deployment and transmission, no unlicensed frequency band resources, interference, etc.

Active Publication Date: 2018-03-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, LTE networks of different operators can use the same unlicensed frequency band, which will inevitably bring strong interference
[0004] Currently, there is no plan to deploy and transmit data on unlicensed frequency band resources

Method used

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  • A drb mapping method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0155] In this embodiment, the network deploys an LTE-U carrier as a secondary carrier to provide radio resources for the terminal. When the DRB is established, the network device determines the mapping manner of the established DRB.

[0156] When the DRB is established, the network device determines the mapping mode of the established DRB according to the QoS characteristics of the DRB and / or the RLC transmission mode. For example, if the QCI of a DRB is less than or equal to 5, it is determined that the DRB cannot be mapped to an unlicensed frequency band carrier. The network device sends indication information to the terminal through dedicated RRC signaling, where the indication information includes the determined specific mapping manner of the DRB.

[0157] After receiving the indication information sent by the network device, the terminal establishes the DBR. The terminal maps DBRs with a QCI of 1 to 5 to the licensed frequency band carrier according to the instruction ...

Embodiment 2

[0159] In this embodiment, the network device deploys an LTE-U carrier in an unlicensed frequency band as a secondary carrier to provide wireless resources for the terminal. After the DRB is established, the network device re-determines and configures the established DRB mapping mode according to the signal interference situation and / or the receiving quality of the transmission service.

[0160] When the network device is establishing a DRB, the DRB configured with a QCI of 1 to 5 can only be mapped to the licensed frequency band carrier. For data bearers with a QCI of 6 to 9, it can be mapped to either the licensed frequency band carrier or the unlicensed frequency band carrier. superior.

[0161] After the DRB is established, the network device can change the existing configuration when the DRB is established at a certain time based on the signal interference situation and the receiving quality of a specific service. For example, the network device modifies the configuratio...

Embodiment 3

[0164] The network deploys an LTE-U carrier in an unlicensed frequency band as a secondary carrier to provide users with wireless resources. The network device serving as the handover target network device receives the DRB mapping mode information of the handover terminal sent by the source network device, and re-determines and configures the DRB mapping mode of the handover terminal.

[0165] When the terminal receives services from the source network device, the source network device configures a mapping mode for the DRB of the terminal, and the DRB with QCI of 7 cannot be transmitted on the unlicensed frequency band carrier. When the terminal switches from the source network device to the target network device, the original DRB mapping method is sent from the source network device to the target network device through the interface between the network devices. After the terminal switches the target network device, the target network device decides to change the original DRB ...

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Abstract

The embodiment of the invention discloses a DRB mapping method and device. In the embodiment of the present invention, network devices and terminals determine the DRB mapping method; the DRB mapping method refers to whether the DRB is allowed to be mapped to the licensed frequency band carrier and / or whether it is allowed to be mapped to the unlicensed frequency band carrier; the network device and the terminal are determined according to The mapping method of the DRB is used to send the service data of the DRB on the designated carrier; the embodiment of the present invention makes those service data (such as VOIP services, or online video, games, etc.) that have certain requirements for service quality not on the unlicensed frequency band carrier Uplink transmission avoids the increase of service delay caused by the discontinuous operation of the carrier in the unlicensed frequency band and the degradation of service quality caused by delay jitter, which can effectively improve the service experience of users.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a DRB mapping method and device. Background technique [0002] With the popularization of Long Term Evolution (LTE) system technology and the rapid growth of the number of global LTE mobile network users, licensed spectrum resources available for the LTE system are becoming increasingly scarce. Due to the continuous growth of mobile data traffic, the existing licensed and authorized spectrum resources are gradually unable to fully meet the needs of users, and the LTE system begins to consider deploying transmission on unlicensed frequency band resources. [0003] LTE-U (LTE-Unlicensed) is a technology that provides LTE services based on unlicensed frequency bands. Currently, there are various wireless communication technologies, such as Wi-Fi, Bluetooth, etc., which work in unlicensed frequency bands. When LTE uses unlicensed frequency bands, it needs to time-sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCH04W16/14H04W72/1215H04W28/0252H04W28/0278H04W72/541H04W72/542H04W72/0453
Inventor 王彦鲍炜许芳丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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