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Method and mobile terminal providing priority-based uplink scheduling information

A mobile terminal, priority technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as reducing system capacity, increasing transmission delay, and being too small

Active Publication Date: 2011-11-23
BLACKBERRY LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the accuracy of the information provided by the UE is limited by the granularity of the BSR, the frequency of BSR transmission, and the delay between the arrival of the data and the processing of the BSR received by the eNB
Having obtained insufficient or inaccurate uplink information, the scheduler may provide grants that are too large (which in turn causes UEs to transmit padding and can reduce system capacity) or grants that are too small (which can lead to RLC fragmentation and increased transmission delay)

Method used

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  • Method and mobile terminal providing priority-based uplink scheduling information
  • Method and mobile terminal providing priority-based uplink scheduling information
  • Method and mobile terminal providing priority-based uplink scheduling information

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Embodiment Construction

[0056] It should be noted that under existing LTE specifications, SR is triggered only when regular BSR is triggered. Although the various embodiments of the invention described below assume that SR is triggered due to BSR triggering, it should be understood that each of these embodiments is equally applicable to other events that may also trigger SR.

[0057] Those skilled in the art will appreciate that the UE always transmits the BSR on the UL-SCH resource in the TTI for which the UE has the UL-SCH resource granted. SRs transmitted on PUCCH are different transmissions on different physical channels in different TTIs and never include BSRs. However, SR performed using random access (RA-SR) is performed on UL-SCH, and thus BSR may be included before CBRA contention succeeds under the existing procedure of CBRA. One aspect of the invention prevents the UE from transmitting a BSR until the CBRA contention is successful.

[0058] Figure 4 is a flowchart of the steps of a fir...

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Abstract

Provided are a method and a mobile terminal for providing uplink scheduling information to a scheduler in a wireless telecommunication system. When a logical channel having data available to transmit triggers a buffer status report, the mobile terminal determines whether a priority level associated with the logical channel exceeds a predefined threshold. If so, the mobile terminal performs a scheduling request procedure with the scheduler. If not, the mobile terminal delays the scheduling request procedure until a predefined timing event has occurred. The predefined timing event may be at least one of expiration of a timer, a radio bearer associated with the logical channel becoming active, and if the scheduling request procedure is being performed using a contention-based random access, contention resolution succeeding for the mobile terminal.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 106360, filed October 17, 2008. technical field [0003] The present invention relates to wireless telecommunication systems. Background technique [0004] More specifically and not by way of limitation, the present invention is directed to a method and a mobile terminal for providing accurate and timely uplink scheduling information from a mobile terminal to a scheduler in a wireless telecommunications system. [0005] The following acronyms are used in the descriptions in this article: [0006] [0007] [0008] [0009] In 3GPP, specification work is ongoing on Evolved UTRAN (E-UTRA) as part of the Long Term Evolution (LTE) work. 3GPP Technical Specification TS 36.321 v8.3.0 (LTE MAC) describes uplink information for scheduling of the LTE system. 3GPP Technical Specification TS 36.331 v8.3.0 (LTE RRC) describes procedures including ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/1284H04W72/1242H04W72/569H04W72/21H04W28/0278H04W72/1268
Inventor G·佩尔捷M·林兹特伦
Owner BLACKBERRY LTD
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