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Method, device and system for transmitting uplink data

A data transmission method and data transmission technology, applied in the field of devices and systems, and uplink data transmission methods, can solve problems such as unsupportable and unsolvable concurrency, and achieve the effects of reducing transmission delay and improving transmission reliability.

Active Publication Date: 2011-06-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the current UE, it cannot support concurrent D-SR (based on PUCCH channel) and CB transmission (based on PUSCH channel) at the same time
In addition, when the UE triggers RA-SR transmission, the preamble (PRACH resource) transmission or Msg3 (PUSCH resource) transmission and CB transmission will also occur at the same time. The current LTE-A UE also cannot solve the above-mentioned problem. The case of concurrency in subframes

Method used

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  • Method, device and system for transmitting uplink data
  • Method, device and system for transmitting uplink data
  • Method, device and system for transmitting uplink data

Examples

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Embodiment Construction

[0068] In the technical solution provided by the embodiment of the present invention, when the UE needs to send uplink data, if the uplink data transmission based on the contention conflicts with the current scheduling request sending time, based on the perspective of UE transmission capability, transmission reliability and transmission delay To start, select the channel type for the current transmission.

[0069] Specifically, when the UE in the synchronization state has uplink data to be transmitted, the UE starts to monitor the CB GRANT (conflict grant) while triggering the D-SR or RA-SR. The UE can simultaneously initiate uplink transmission in D-SR or RA-SR in the subframe indicated by CB GRANT for CB transmission, including D-SR transmission and preamble transmission in RACH (Random Access Channel) process and the Msg3 transmission of the RACH process. If the UE supports multiple transmissions to be sent in parallel, multiple transmissions are performed at the same time...

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PUM

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Abstract

The embodiment of the invention discloses a method, device and system for transmitting uplink data. The method comprises the following steps of: initiating a scheduling request transmission and a competition-based uplink data transmission to base station equipment when the uplink data are required to be sent by user equipment; and selecting the channel type of the current transmission by the userequipment according to the transmission capability of the user equipment when the scheduling request transmission conflicts with the competition-based uplink data transmission, and sending the uplinkdata or a scheduling request according to the channel type. By virtue of the method, the transmission reliability of the uplink data can be improved and the transmission delay is shortened.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an uplink data transmission method, device and system. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) system, UE (User Equipment, user equipment) has an RRC (Radio Resource Control, radio resource control) connection with eNB (Evolved Node B, evolved Node B) and has established When the wireless bearer is up, if uplink data needs to be transmitted but no uplink resource is allocated, the eNB can send a request to the eNB through D-SR (Dedicated Scheduling Request) or RA-SR (Random Access Scheduling Request, random access scheduling request). Send a scheduling request to apply for sending uplink data. [0003] When the UE is configured with D-SR transmission, the UE delays to wait for the next SR (SchedulingRequest, scheduling request) opportunity, and sends a scheduling request to the eNB; the eNB decodes the scheduling r...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04W88/02
CPCH04W72/02H04W74/08H04W72/1284H04W72/21
Inventor 许芳丽谌丽刘佳敏
Owner DATANG MOBILE COMM EQUIP CO LTD
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