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Mobile communication method and wireless base station

A mobile communication and wireless base station technology, applied in wireless communication, transmission path sub-channel allocation, transmission path separation device, etc., can solve the problem that "NS" cannot be added

Inactive Publication Date: 2017-09-15
NTT DOCOMO INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] That is to say, in a region where the same frequency structure as a certain frequency band is intended to be used, there is a different system in an adjacent frequency band, and "A-MPR" must be added when protection is required, but it is not possible to create a new Adding "NS" (in order to correspond to the new "NS", the mobile station UE that has already been manufactured cannot meet the requirements), so it is defined as a new frequency band that adds a new "NS" to the performance of the existing frequency band

Method used

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  • Mobile communication method and wireless base station
  • Mobile communication method and wireless base station
  • Mobile communication method and wireless base station

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Embodiment Construction

[0034] (Mobile communication system according to the first embodiment of the present invention)

[0035] refer to Figure 1 to Figure 5 A mobile communication system according to a first embodiment of the present invention will be described. In all the drawings for describing the present embodiment, components having the same functions are assigned the same symbols, and overlapping descriptions are omitted.

[0036] Such as figure 1 As shown, the mobile communication system according to this embodiment corresponds to the LTE-Advanced scheme, and includes a mobility management node MME (Mobility Management Entity: Mobility Management Entity) and a radio base station eNB.

[0037] The radio base station eNB of this embodiment can support the LTE-Advanced method, such as figure 2 As shown, a receiving unit 11 , a storage unit 12 , and a control unit 13 are provided.

[0038] The receiving unit 11 is configured to receive various signals from the mobility management node MME...

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Abstract

Set CA appropriately. The mobile communication method of the present invention has the step of: the mobile station (UE) notifying the radio base station (eNB) of the "frequency band combination information for carrier aggregation" corresponding to the mobile station (UE); The radio base station (eNB) determines whether the mobile station (UE) should use the "NS" corresponding to the frequency band used in carrier aggregation, whether it is included in the "NS" specified by the received "band combination information for carrier aggregation". Steps to configure carrier aggregation.

Description

technical field [0001] The present invention relates to a mobile communication method and a wireless base station. Background technique [0002] In the LTE (Long Term Evolution: Long Term Evolution) scheme, protection standards are set so as not to interfere with other frequency bands used in the same area (see Non-Patent Documents 1 and 2). [0003] Such as Figure 6 As shown, in the area A, the frequency bands A and B are sufficiently far apart, so the mobile station UE can attenuate the interference level from the frequency band A to the frequency band B to the allowable interference level even when the mobile station UE performs communication using the maximum transmission power, that is, The above protection criteria are met. [0004] On the other hand, if Figure 6 As shown, in the region B, when the mobile station UE communicates with the maximum transmission power, the interference level from the frequency band A to the frequency band B cannot be attenuated to the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/18H04W72/04
CPCH04L5/001H04L5/0062H04L5/0094H04L5/0044H04L5/0037
Inventor 寒河江佑太安尼尔·尤密斯高桥秀明梅田大将
Owner NTT DOCOMO INC
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