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Handling a scheduling request trigger

A scheduling request and processing scheduling technology, applied in wireless communication, electrical components, etc., can solve the problem that user equipment must wait

Active Publication Date: 2014-11-26
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that the user device must wait until such an opportunity becomes available

Method used

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  • Handling a scheduling request trigger
  • Handling a scheduling request trigger
  • Handling a scheduling request trigger

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Embodiment Construction

[0037] As part of this disclosure, problems will first be identified and discussed. As mentioned above, it was recently decided that all pending SRs will be canceled if UL-SCH resources are available for a new transmission in a TTI as it is in a TTI when UL-SCH is available or when a PDCCH grant is received, It is considered ambiguous when UL-SCH resources are granted. Now consider the case where a pending SR trigger is canceled in a TTI when UL-SCH resources are available, ie when new data is transmitted, according to the most recent decision.

[0038] figure 1 An analysis showing an alternative cancellation of a scheduling request while transmitting UL data when new second data arrives at the user equipment buffer before a grant for the first data is received. Assume that the following operations have been performed: the first data has arrived at the user equipment buffer. This first data has triggered a buffer status report. This first data also directly or indirectly t...

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Abstract

A method in a user equipment for requesting that a base station schedule the user equipment for an uplink data transmission to the base station is provided. The user equipment comprises a buffer. Directly or indirectly responsive to receiving data into the buffer to be transmitted to the base station, the user equipment generates a scheduling request trigger. The scheduling request trigger is configured to trigger the sending of a scheduling request to the base station if the trigger is pending at the next scheduling request opportunity, and to remain pending until it is cancelled. The user equipment cancels the pending scheduling request trigger when the data is accounted for in a buffer status report, which reports the size of the buffer to the base station, or when the data is included directly in a scheduled uplink data transmission whichever occurs first.

Description

technical field [0001] The present invention relates to methods and arrangements in user equipment. Specifically, it deals with handling dispatch request triggers. Background technique [0002] In a typical cellular radio system, also called a wireless communication system, User Equipment (UE), also called mobile terminals and / or wireless terminals, communicates with one or more core networks via a Radio Access Network (RAN). The user equipment may be a mobile station or user equipment unit, such as mobile telephones, also known as "cellular" telephones, and laptop computers with wireless capabilities, such as mobile terminals, and thus may, for example, communicate with a radio access network Portable, small, hand-held, computer-included or vehicle-mounted mobile devices for voice and / or data. [0003] A radio access network (RAN) covers a geographical area divided into cell areas, each of which is represented by, for example, a radio base station (RBS), also referred to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W72/04
CPCH04W72/1284H04W72/21H04L47/30
Inventor J·奥斯特加尔德M·施塔廷G·佩莱蒂尔
Owner TELEFON AB LM ERICSSON (PUBL)