Broadcast information transmission

一种广播发射、发射功率的技术，应用在广播信息发射领域，能够解决没有发送重发、错误、没有考虑到增加发射功率的效率等问题

Inactive Publication Date: 2006-05-10
NEC CORP
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AI Technical Summary

Problems solved by technology

[0008] However, in the method disclosed in the above-mentioned JP-A-2004-193888, a problem arises when data is transmitted to each mobile station according to the broadcast transmission method and a part of the mobile stations receiving the data transmitted from the wireless base station moves When an error occurs in the data received in the station, there is no request to resend the data in which the error occurred
[0009] Furthermore, in the method disclosed in the above-mentioned JP-A-2004-128563, the efficiency of increasing the entire transmission power for transmitting data is not considered

Method used

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  • Broadcast information transmission
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Embodiment Construction

[0020] now refer to figure 2 , illustrates a mobile communication system composed of a radio base station 101 and a plurality of mobile stations 102-1-123-3. The radio base station 101 is connected to the mobile stations 102-1-102-3 through radio links, and transmits broadcast information to and receives information from the mobile stations 102-1-102-3. In addition, the radio base station 101 is connected to the exchange station via a radio link control station (not shown) so as to be able to receive broadcast information transmitted from other nodes connected to the exchange station. Furthermore, despite the figure 2 While only the radio base station 1-1 and three mobile stations 102-1-102-3 are shown, the number of radio base stations and the number of mobile stations connected to the radio base stations are not limited to these numbers.

[0021] like image 3 as shown, figure 2 The shown wireless base station 101 includes a transmission buffer 201 , a broadcast encod...

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Abstract

In a mobile communication system, broadcast information is transmitted from a radio base station to a mobile station. The transmission power calculation unit calculates transmission power for transmitting the retransmission data frame from the wireless base station to the mobile station according to the one-way transmission method. The transmission power calculating unit also calculates the transmission power for transmitting the broadcast information from the wireless base station to the mobile station according to the broadcast transmission method, so that the calculated transmission power and the transmission power for transmitting the broadcast information from the wireless base station to the mobile station according to the broadcast transmission method The sum of power is minimized. The transmission section of the wireless base station transmits broadcast information to the mobile station according to the calculated transmission power by a broadcast transmission method.

Description

technical field [0001] The present invention relates to a radio base station, a mobile communication system, and a broadcast information transmission method for performing packet communication by broadcast. Background technique [0002] In mobile communication systems in recent years, only a broadcast transmission method is used as a transmission method when transmitting broadcast information from a wireless base station to a plurality of mobile stations. [0003] refer to figure 1 , shows a mobile communication system composed of a radio base station 601 and a mobile station 602. The wireless base station 601 includes a transmission buffer 603 , a broadcast encoder 604 and a transmission section 605 . The mobile station 602 includes: a receiving section 606 , a broadcast decoder 607 , a receiving buffer 608 and a host application 609 . [0004] The transmission buffer 603 temporarily stores broadcast information that has been transmitted from other nodes. The broadcast ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04L1/00H04L1/08H04L12/70H04W4/06H04W28/04H04W52/04H04W52/34H04W52/48H04W84/12
CPCY02D30/70H04W72/30H04W88/08H04W48/10
Inventor 近藤毅幸
Owner NEC CORP
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