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Method and device for triggering buffer status report and terminal

A technology of buffer state and trigger device, applied in the field of communication engineering, to achieve the effect of effectively allocating resources and meeting QoS requirements

Pending Publication Date: 2018-10-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide a triggering method of buffer status report, aiming at solving the triggering problem of buffer status report in the flow-based QoS architecture of 5G system

Method used

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  • Method and device for triggering buffer status report and terminal
  • Method and device for triggering buffer status report and terminal
  • Method and device for triggering buffer status report and terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] image 3 is a flow chart of the method for triggering the buffer status report provided by the first embodiment of the present invention, such as image 3 As shown, the trigger methods of the buffer status report include:

[0049] Step S101: The terminal detects that the mapping relationship between the data radio bearer DRB and the quality of service flow QoS flow has changed;

[0050] Step S102: the terminal triggers the buffer status report BSR.

[0051] According to the above triggering method, the terminal judges whether to trigger BSR by detecting whether the mapping relationship between DRB and QoS flow changes. This BSR triggering method can enable the base station to know in time the information that the terminal will send in the flow-based QoS architecture. BSR (that is, the detailed information of the data to be sent by the terminal), which can allocate resources more effectively and meet different QoS requirements of different services.

[0052] The imple...

Embodiment 2

[0075] This embodiment is a specific implementation of the buffer status report triggering method based on the first embodiment. The terminal establishes a connection with cell 1, and two data radio bearers (DRBs) are configured, which are data radio bearers 1 (DRB1 ) and data radio bearer 2 (DRB2), and notify the terminal to obtain the mapping relationship between DRB and QoS flow through the reflection method.

[0076] The corresponding relationship between the DRB and the assigned LC and LCG is shown in the following table:

[0077] radio bearer

Attributed LC

Affiliated LCG

Data Radio Bearer 1

3

0

Data Radio Bearer 2

4

1

[0078] Step 1: At the second moment, the terminal detects the downlink data packet of DRB1, parses out that the QoS flowID in the data packet is 1, and generates a mapping relationship between DRB and QoS flow, and the terminal detects the downlink data packet of DRB2, and parses out that the data packet con...

Embodiment 3

[0095] This embodiment is a specific implementation of the method for triggering the buffer status report based on the first embodiment. The terminal establishes a connection with cell 2 and is configured with two data radio bearers (DRBs), which are respectively data radio bearers 1 (DRB1 ) and data radio bearer 2 (DRB2), and notify the terminal to obtain the mapping relationship between the data radio bearer and the QoS flow through the reflection method.

[0096] The corresponding relationship between the DRB and the assigned LC and LCG is shown in the following table:

[0097] radio bearer

Attributed LC

Affiliated LCG

Data Radio Bearer 1

3

0

Data Radio Bearer 2

4

1

[0098] Step 1: At the second moment, the terminal detects the downlink data packet of DRB1, parses out that the QoS flow ID contained in the data packet is 1, and the contained QoS flow ID is 2, generates a mapping relationship between DRB and QoS flow, and the t...

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Abstract

The invention discloses a method for triggering a buffer status report, which comprises the steps that a terminal detects a change in a mapping relation between data radio bearers (DRBs) and quality-of-service flows; and the terminal triggers the buffer status report (BSR). According to the invention, a base station is enabled to timely know a BSR which is ready to be transmitted by the terminal in flow-based QoS (Quality of Service) architecture, thereby being capable of allocating resources more effectively, and meeting different QoS requirements of different services.

Description

technical field [0001] The invention relates to the field of communication engineering, in particular to a method, device and terminal for triggering a buffer state report. Background technique [0002] In the Long Term Evolution (LTE for short) system, when a terminal establishes a Data Radio Bearer (DRB), the base station will allocate a logical channel (Logical Channel, LC) to which the DRB belongs, and a Logical Channel Group (Logical Channel Group). Channel Group, LCG), LCG currently has four groups of 0, 1, 2, and 3. When a terminal in the connected state needs to send uplink data, if there are not enough uplink resources or authorization, it will first send a buffer status report (Buffer Status Report, BSR) to the base station, carrying the buffered data information prepared on the LCG, that is, the buffered data size (Buffer Size, BS) corresponding index value. After the base station receives it, it knows the size of the buffered data according to the received inde...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W28/24H04W72/12
CPCH04W28/0278H04W28/24H04W72/1221H04W72/21
Inventor 陈中明黄河施小娟
Owner ZTE CORP
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