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Method and Apparatus for Monitoring a Random Access Channel

A technology of random access and connection, applied in the field of data acquisition, which can solve the problem of large header overhead and so on

Inactive Publication Date: 2012-02-01
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This also makes the report slower and has more header overhead

Method used

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  • Method and Apparatus for Monitoring a Random Access Channel
  • Method and Apparatus for Monitoring a Random Access Channel
  • Method and Apparatus for Monitoring a Random Access Channel

Examples

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Embodiment Construction

[0144] According to one embodiment of the invention, a method comprising the following steps may be employed to provide the information needed to measure and report the performance and behavior of random access observed in a cellular radio system such as an LTE system.

[0145] -Measurement

[0146] - measurement build,

[0147] - Measurement reporting and its triggering.

[0148] Measurement

[0149] To estimate access probability, access delay, and whether a UE is power limited, the following measurements may be used alone or in suitable combinations.

[0150] Measurements related to the number of preamble transmission attempts

[0151] As mentioned above, UEs may not be granted access due to preamble detection misses or contention. In order to estimate the access probability and the reason for the failure of a given random access attempt, the UE indicates and reports the number N of preambles that have been transmitted due to a preamble detection miss m and the number ...

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Abstract

A user equipment for obtaining data for observing performance related to Random Access in a cellular radio system is provided. The user equipment can connect to the system. In order to provide the network / system with data for observing the random access procedure the user equipment measures and stores data needed to compute measurements to be reported to the system. The user equipment further generates a measurement report, and transmits the measurement report based on a trigger event.

Description

technical field [0001] The invention relates to a method and a device for obtaining data for observing random access related performance in a cellular radio system. Background technique [0002] Work is currently underway within the 3rd Generation Partnership Project (3GPP) to develop the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) consisting of Long Term Evolution (LTE) and System Architecture Evolution (SAE) concepts. [0003] An important focus in the E-UTRAN standardization work is to ensure that new networks are simple to deploy and inexpensive to operate. The vision is that new systems should be self-optimizing and self-configuring in as many ways as possible, see NGMN, "Operator Use Cases related to Self Organizing Networks," ver.1.53, 2007-04-16 and 3GPP TR 32.816, Study on Management of E-UTRAN and SAE. One aspect that benefits from self-optimization and self-configuration is the management of the Random Access Channel (RACH). [0004] figure 1 ...

Claims

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Application Information

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IPC IPC(8): H04W24/10
CPCH04W74/08H04W24/10
Inventor 梅迪·阿米里乔弗雷德里克·贡纳尔松克里斯蒂娜·约瑟尼尔斯埃里克·埃里克松
Owner TELEFON AB LM ERICSSON (PUBL)
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