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Method and device for configuring uplink scheduling request

A technology of scheduling requests and configuration methods, applied in multi-frequency code systems, wireless communications, electrical components, etc., can solve the problems of increased resource pool size and maintenance complexity, large time and processing complexity, and achieve cost-effective The effect of reducing the time and complexity of processing and improving the efficiency of processing

Inactive Publication Date: 2013-12-11
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If the OFDM system is applied to the wireless transmission of a data collection system with a large number of users, each cell in the system will support the long-term online uplink data transmission of thousands of users, and the scale and complexity of the resource pool maintained by the base station will increase with the number of users. Especially after receiving the uplink scheduling request, the base station checks the list to determine the UE that sends the uplink scheduling request, which takes a lot of time and processing complexity

Method used

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  • Method and device for configuring uplink scheduling request
  • Method and device for configuring uplink scheduling request
  • Method and device for configuring uplink scheduling request

Examples

Experimental program
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Embodiment 1

[0040] Set the maximum number of users supported by the cell N user , the user index assigned to UE is 0~N user An integer within the range of -1; set two preamble resources distributed continuously from the starting position in each radio frame in the PRACH channel for random access, and the number is expressed as PreambleNum RA ; Set the PRACH channel in each radio frame, the preamble resource distributed continuously from the end position of the preamble resource used for random access is used to send the uplink scheduling request, and its number is expressed as PreambleNum SR ;PreambleNum SR +PreambleNum RA =MaxPreamble, where MaxPreamble represents the total number of preamble resources in the PRACH channel in each radio frame. The above operations are pre-executed operations, and the setting results are notified to the base station side through network configuration.

[0041] Calculate the period T for sending uplink scheduling requests SR =N user / PreambleNum SR ...

Embodiment 2

[0053] Set the maximum number of users supported by the cell N user , the user index assigned to UE is 0~N user An integer within the range of -1; set two preamble resources distributed continuously from the starting position in each radio frame in the PRACH channel for random access, and the number is expressed as PreambleNum RA ; Set the PRACH channel in each radio frame, the preamble resource distributed continuously from the end position of the preamble resource used for random access is used to send the uplink scheduling request, and its number is expressed as PreambleNum SR ;PreambleNum SR +PreambleNum RA =Max Preamble, where MaxPreamble represents the total number of preamble resources in the PRACH channel in each radio frame. The above operations are pre-executed operations, and the setting results are notified to the base station side through network configuration.

[0054] Calculate the period T for sending uplink scheduling requests SR =N user / PreambleNum SR...

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Abstract

The invention discloses a method and device for configuring an uplink scheduling request. One part of preamble resource used for random access and other part of preamble resources used for sending the uplink scheduling request are set in a random channel in each wireless frame. The method comprises the steps of: when user equipment newly accesses a cell, allocating user indexes in the cell where the user equipment is in for the user equipment; according to a preset mapping manner, mapping the user indexes allocated to the user equipment to a preamble resource used for the uplink scheduling request in the wireless frame; and sending a position of the mapped preamble resource to the user equipment. According to the invention, aiming at the condition that an orthogonal frequency division multiplexing system is applied to a large-user-amount data acquisition system, an uplink scheduling request resource pool needs not to be maintained, and the user equipment of sending the uplink scheduling request can be rapidly determined on the basis of the configuration of the uplink scheduling request.

Description

technical field [0001] The present invention relates to Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) technology, in particular to a configuration method and device for an uplink scheduling request in an OFDM system. Background technique [0002] In the OFDM system, the uplink transmission channel is shared. When the user equipment (UE, User Equipment) has established uplink synchronization, when the UE has data to send but has no available uplink resources, it will send an uplink scheduling request to the base station to obtain Uplink resources for transmitting data. When a UE newly accesses a cell, the base station configures the UE to perform an uplink scheduling request, that is, allocates resources for the UE to send the uplink scheduling request. [0003] Currently, there are the following configuration methods for uplink scheduling requests. [0004] 1) Using a random selection method to allocate a part of the PRACH ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04W72/12
Inventor 程欣瑞冯世英喻炜
Owner POTEVIO INFORMATION TECH CO LTD