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Method and device for processing random access failure of auxiliary carrier

A technology of random access and processing methods, applied in connection management, electrical components, wireless communication, etc.

Active Publication Date: 2015-04-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the random access failure handling of the secondary carrier requires special consideration, which is not covered in the prior art

Method used

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  • Method and device for processing random access failure of auxiliary carrier
  • Method and device for processing random access failure of auxiliary carrier
  • Method and device for processing random access failure of auxiliary carrier

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Embodiment Construction

[0056] The embodiment of the present invention proposes a method for processing random access failure of the auxiliary carrier in the carrier aggregation system. When the number of random accesses on the auxiliary carrier reaches the maximum number of retransmissions allowed by the carrier and the random access is still unsuccessful, The UE immediately terminates the random access attempt on the secondary carrier, and reports random access failure information to the eNB through RRC signaling or MAC CE. The eNB stops scheduling the UE's data transmission on the secondary carrier according to the received random access failure information, and decides on subsequent operations on the secondary carrier, such as deleting it from the UE's configured carrier list or deactivating the downlink secondary carrier, etc. . The signaling manner for the terminal to report the random access failure of the secondary carrier may be RRC dedicated signaling, or new MAC layer control signaling, ie...

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Abstract

The embodiment of the invention discloses a method and device for processing random access failure of an auxiliary carrier, comprising the following steps of: when the random access frequency of the auxiliary carrier reaches the maximum retransmitting frequency allowed by the auxiliary carrier, ending the random access trial on the auxiliary carrier and reporting random access failure information to base station equipment by user equipment (UE); and receiving an instruction from the base station equipment and deleting or activating the auxiliary carrier according to the instruction by the UE. According to the embodiment of the invention, a work carrier set of a terminal can be configured and managed.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for processing random access failure of a secondary carrier. Background technique [0002] The peak rate of the LTE-A (Long Term Evolution Advanced, Advanced Long Term Evolution) system is greatly improved compared with the LTE (Long Term Evolution, Long Term Evolution) system, and it is required to reach 1 Gbps downlink and 500 Mbps uplink. At the same time, the LTE-A system requires good compatibility with the LTE system, and the maximum bandwidth of the LTE system is 20MHz. Based on the needs of increasing the peak rate, being compatible with the LTE system, and making full use of frequency resources, the LTE-A system introduces a CA (Carrier Aggregation, carrier aggregation) technology. Such as figure 1 Shown is a schematic diagram of the carrier form of the LTE system; figure 2 Shown is a schematic diagram of the form of carrier a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W76/06
Inventor 李海涛梁靖许芳丽
Owner DATANG MOBILE COMM EQUIP CO LTD