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Wireless base station and mobile communication method

A technology for wireless base stations and mobile stations, which is applied in wireless communication, multiplexing communication, signaling distribution, etc., and can solve problems such as peak rate reduction

Inactive Publication Date: 2012-07-18
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the above-mentioned mobile communication system, since RBs (Resource Blocks) for PUCCH (Physical Uplink Control Channel) are reserved at both ends of the system bandwidth in the uplink, and any 6 RBs are reserved as resources for PRACH (Physical Random Access Channel), so there is a problem that the peak rate decreases

Method used

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  • Wireless base station and mobile communication method
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  • Wireless base station and mobile communication method

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Embodiment Construction

[0012] (Structure of the mobile communication system according to the first embodiment of the present invention)

[0013] refer to Figure 1 to Figure 3 , the configuration of the mobile communication system according to the first embodiment of the present invention will be described.

[0014] The mobile communication system of this embodiment is an LTE mobile communication system, and as figure 1 As shown, a radio base station eNB and a mobile station UE are included.

[0015] In the mobile communication system according to the present embodiment, the radio base station eNB transmits downlink control signals including scheduling signals and the like via a PDCCH (Physical Downlink Control Channel) in downlink.

[0016] In addition, the mobile station UE transmits uplink control signals via PUCCH, transmits uplink data signals via PUSCH (Physical Uplink Shared Channel), transmits random access procedure signals (for example, RACH preamble, etc.) via PRACH, and transmits DMRS...

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Abstract

Disclosed is a wireless base station (eNB) which avoids a reduction in the peak rate of the uplink whenever possible and is provided with a scheduling unit (12) adapted to assign PUCCH resources, PUSCH resources, and PRACH resources to the mobile stations (UE) in the subordinate cells, wherein the scheduling unit (12) is further adapted to use either a PUCCH resource or a PRACH resource, or both, as a PUSCH resource when a cell has only one mobile station (UE) therein.

Description

technical field [0001] The present invention relates to a wireless base station and a mobile communication method. Background technique [0002] The theoretical peak rate in a mobile communication system of the LTE (Long Term Evolution) scheme is determined based on a "TBS (Transport Block Size) table". [0003] However, in the above-mentioned mobile communication system, since RBs (Resource Blocks) for PUCCH (Physical Uplink Control Channel) are reserved at both ends of the system bandwidth in the uplink, and any 6 Since RBs are reserved as resources for the PRACH (Physical Random Access Channel), there is a problem that the peak rate decreases. Contents of the invention [0004] Therefore, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a radio base station and a mobile communication method capable of avoiding a decrease in peak rate (peak rate) in an uplink as much as possible. [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04J1/00H04J11/00
CPCH04L5/0044H04W72/1252H04L5/0089H04W72/1268H04L5/0053H04W72/52
Inventor 大久保尚人清岛耕平石井启之
Owner NTT DOCOMO INC