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Method and user device for triggering buffer area state report

A buffer status and status reporting technology, applied in the communication field, can solve resource starvation and other problems, achieve the effects of reducing overhead, achieving high efficiency and fairness, and ensuring QoS requirements

Inactive Publication Date: 2010-07-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a method and user equipment for triggering a buffer status report, so as to solve the technical problem of resource starvation caused by untimely BSR reporting

Method used

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  • Method and user device for triggering buffer area state report
  • Method and user device for triggering buffer area state report

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An embodiment of the present invention provides a method for triggering a buffer status report, see figure 1 , methods include:

[0029] 101: Obtain the amount of water in the leaky bucket of the guaranteed bit rate PBR of the radio bearer;

[0030] 102: When the water volume in the PBR leaky bucket of the radio bearer reaches the water volume threshold of the PBR leaky bucket of the radio bearer and there is data waiting to be sent in the radio bearer, a buffer status report is triggered.

[0031] The method provided by the embodiment of the present invention triggers the BSR when the water volume of the PBR leaky bucket of the wireless bearer reaches the set PBR leaky bucket water volume threshold, so that the terminal can notify the base station of the resource hunger situation in time, and solves the problem of not triggering in time The problem of starvation of wireless bearer resources due to BSR reduces the overhead of BSR transmission, and at the same time prov...

Embodiment 2

[0033] An embodiment of the present invention provides a method for triggering a buffer status report, see figure 2 , methods include:

[0034] 201: Obtain the amount of water in the leaky bucket of the guaranteed bit rate PBR of the radio bearer;

[0035] Among them, the LTE system introduces PBR, and uses the PBR leaky bucket mechanism to avoid resource starvation. The working principle of the PBR leaky bucket mechanism is: the terminal defines a logical channel with a size of S bucketsize (values ​​from zero to infinity) of the PBR leaky bucket. Inject the "water" of the PBR amount into the leaky bucket in each time interval; after each time the terminal allocates uplink resources for the corresponding logical channel, it releases the "water" of the allocated resource amount from the leaky bucket. When distributing uplink resources, the terminal should try to drain the water in each leaky bucket according to the order of priority; if there are remaining uplink resources...

Embodiment 3

[0058] In order to solve the problem of radio bearer resource starvation due to not triggering BSR in time, and reduce the overhead of BSR transmission, the embodiment of the present invention provides a method for triggering a buffer status report, wherein the embodiment of the present invention assumes that there are three radio bearers A, B and C, and the corresponding priorities are 1, 2 and 3 respectively (1 has the highest priority in this embodiment of the present invention), see image 3 , the specific implementation process is as follows:

[0059] 301: Obtain the PBR leaky bucket thresholds corresponding to radio bearers A, B, and C in the terminal;

[0060] Among them, in the embodiment of the present invention, it is assumed that there are three radio bearers A, B and C in the terminal, and the corresponding PBRs are 20 bytes / ms, 30 bytes / ms and 40 bytes / ms respectively, and the radio bearers A, B and C The BSD of the corresponding leaky bucket algorithm is 50ms, t...

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Abstract

The invention discloses a method and user device for triggering buffer area state report, belonging to the communication field. The method comprises the following steps: obtaining the water quantity for ensuring bit rate in PBR leaky bucket of radio bearer; and when the water quantity of PBR leaky bucket of radio bearer reaches the water quantity threshold of PBR leaky bucket of radio bearer and the radio bearer contains data to be sent, triggering the buffer area state report. The user device comprises an obtaining module and a triggering module. The method provided by the embodiment of the invention can timely trigger BSR, do not caused radio bearer resource starvation, reduce the cost used for sending BSR and provide efficient and fair buffer area state information needed by uplink scheduling so as to ensure the QoS requirements of various services.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for triggering a buffer state report and user equipment. Background technique [0002] In an LTE (Long Term Evolution, Long Term Evolution) system, for an uplink shared channel, the base station generally adopts a unified scheduling method to control uplink transmission of different terminals, so as to improve channel utilization. In order to avoid the resource starvation problem caused by terminals allocating uplink resources to their internal logical channels according to their priorities, that is, the phenomenon that low-priority logical channels do not get any uplink transmission opportunities for a long time, the LTE system introduces PBR (Prioritized Bit Rate, Guaranteed bit rate), using the PBR leaky bucket mechanism to avoid resource starvation. [0003] The dynamic scheduling of uplink resources for the terminal by the base station usually includes four processes: the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/24H04W72/04H04W72/12
Inventor 曾清海高闻
Owner HUAWEI TECH CO LTD
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