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Method and arrangements in a mobile communication network

A telecommunication network and network node technology, applied in wireless communication, data exchange through path configuration, transmission monitoring, etc., can solve the problems of complex processing, increase in the number of measurements and events, and increase the complexity of UE, and achieve low complexity , the effect of overall system performance improvement

Inactive Publication Date: 2014-03-19
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this solution shows quality on all carriers in a multi-carrier system, the obvious disadvantage lies in the increased number of measurements and events performed by the UE
On the one hand it increases UE complexity, on the other hand it will increase the uplink signaling load and will require more complex processing in the network
Complexity and signaling load will explode with the number of supplementary carriers

Method used

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  • Method and arrangements in a mobile communication network
  • Method and arrangements in a mobile communication network
  • Method and arrangements in a mobile communication network

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Embodiment Construction

[0057] According to an embodiment of the present invention, the communication system is described herein as a WCDMA or LTE communication system. However, the skilled artisan realizes that the inventive method and apparatus also perform well on other communication systems such as cdma2000 systems or Wimax systems. User equipment may be mobile stations such as mobile telephones ("cellular" telephones) and laptop computers with mobile terminals, and thus may be, for example, portable, small, hand-held, computer-containing or vehicle-mounted mobile devices, which are associated with Voice and / or data are transferred between RANs.

[0058] In one of the state-of-the-art solutions, measurement quality and corresponding events are reported for all carriers. This increases signaling overhead. Therefore, an important objective of the present invention is to reduce signaling overhead and UE complexity. Another purpose is to ensure that reported measurements and events take into accou...

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Abstract

A method in a node of cellular telecommunication network comprising receiving downlink quality measurements of a primary carrier frequency and at least one secondary carrier frequency and combining the received downlink quality measurements of the primary carrier frequency and secondary carrier frequency. The downlink quality measures are combined by determining a combined downlink quality measure for the downlink quality measurements of the primary carrier frequency and the at least one secondary carrier frequency and determining a difference in logarithmic scale between the downlink quality measurements of the primary carrier frequency and the combined downlink quality measure for the downlink quality measurements of the primary carrier frequency and the at least one secondary carrier frequency to be used as the combined quality measure. The method also includes evaluating whether the combined quality measure fulfills a predetermined condition and triggering an event only if the combined quality measure fulfills the predetermined condition.

Description

technical field [0001] The present invention relates to methods and devices in mobile communication networks, in particular to devices allowing optimization of radio resource utilization in multi-carrier systems and methods for such optimization. Background technique [0002] UTRAN (Universal Terrestrial Radio Access Network) is a term to identify the radio access network of UMTS (Universal Mobile Telecommunications System) based on WCDMA, where UTRAN consists of Radio Network Controller (RNC) 13b and NodeB 12b (i.e. figure 2 shown in the radio base station) composition. The NodeB communicates wirelessly with a mobile user equipment (UE) 14b, and the RNC 13b controls the NodeB 12b. RNC 13b is also connected to Core Network (CN) 10b. Evolved UTRAN (E-UTRAN) is the evolution of UTRAN to a high data rate, low latency and packet optimized radio access network. as well figure 1 As shown, the E-UTRAN consists of radio base stations (eNBs) 12a, and the eNBs are interconnected ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04W36/30H04B17/00
CPCH04B17/0077H04W24/10H04B17/0042H04B17/309H04B17/382H04W36/0085
Inventor M·卡兹米J·伯格斯特伦
Owner TELEFON AB LM ERICSSON (PUBL)
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