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User device, mobile communication system, and signaling value application method

A technology of a mobile communication system and a user device, applied in the field of notification of signaling information

Active Publication Date: 2017-04-19
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the NS value is notified by the NW, but the A-MPR value is executed by the user equipment UE, and the NW side only determines and notifies whether the application is allowed or not.

Method used

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  • User device, mobile communication system, and signaling value application method
  • User device, mobile communication system, and signaling value application method
  • User device, mobile communication system, and signaling value application method

Examples

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no. 1 Embodiment approach

[0086] First, the first embodiment will be described. In this embodiment, for a certain band, the base station eNB will send one or more additional NS values ​​in addition to the NS value sent through the existing IE additionalSpectrumEmission.

[0087] These multiple NS values ​​specify the priority order. The base station eNB stores the NS value with the lowest priority in the existing additionalSpectrumEmission IE, and stores the NS value with a higher priority than the NS value in the new IE, that is, additionalEmissionList, and then sends it.

[0088] When storing a plurality of NS values ​​in the additionalEmissionList, the base station eNB associates, for example, the order of storing (transmitting) with the priority of the NS values. For example, the NS value stored first in the additionalEmissionList has the highest priority, and the priority becomes lower in order of storage (transmission) thereafter. For example, the NS value stored first in the additionalEmissionL...

no. 2 Embodiment approach

[0111] Next, a second embodiment will be described. As shown in the description above, in LTE, when multiple bands with overlapping frequency domains are defined, the Multiple Frequency Band Indicator (MFBI) function is defined so that UEs supporting each band can Connect to the network at the same time, and can notify multiple bands through the multiBandInfoList of SIB1. In this case, as Figure 8 As shown, the NS value for each band can be notified in the area of ​​multiBandInfoList by SIB2.

[0112] In the second embodiment, the MFBI function is used to transmit a plurality of NS values ​​from the base station eNB for each band. Similar to the first embodiment, a plurality of NS values ​​are associated with priorities, and the user equipment UE selects the NS value with the highest priority among the NS values ​​supported by itself among the plurality of NS values ​​received from the base station eNB, and selects the NS value with the highest priority. application.

[0...

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Abstract

This user device is for use in a mobile communication system provided with a base station and a user device and is provided with: a reception means that receives a plurality of prioritized signaling values from the base station, said signaling values corresponding to bands that are used by the user device; a selection means that selects the signaling value having the highest degree of priority from signaling values that can be applied by the user device among the plurality of signaling values; and a control means that applies the signaling value selected by the selection means and controls transmission power.

Description

technical field [0001] The present invention relates to notification of signaling information related to maximum transmission power of a user equipment UE in a mobile communication system. Background technique [0002] In the LTE (Long Term Evolution) scheme, out-of-band emission regulations and the like are provided in order not to cause interference to radio systems used in the same area. In general, this regulation is formulated in accordance with the domestic regulations of each country, and communication operators are required to operate wireless systems in accordance with this regulation. [0003] On the other hand, assume a situation where sufficient attenuation cannot be obtained at the allowable interference level for adjacent systems due to differences in band utilization methods and system types. [0004] In particular, LTE transmits in the wideband domain, and noise generated by spurious (spurious) tends to reach a high level at frequencies far apart. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/28H04W72/04
CPCH04W52/28H04W52/146H04W52/226H04W52/367H04W48/12H04W52/281H04W72/56H04W36/04H04W52/36H04W52/54
Inventor 高桥秀明梅田大将
Owner NTT DOCOMO INC
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