Multicast communication method in a CDMA mobile communication system

US8995970B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8995970-B2
Application numberUS-201213542227-A
CountryUS
Kind codeB2
Filing dateJul 5, 2012
Priority dateDec 7, 1998
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  5. First independent claim

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Abstract

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A multicast communication method in a CDMA mobile communication system is disclosed, which is capable of reducing a transmission power in a base station system and performing an efficient multicast operation for a large number of mobile subscribers is provided. Starting of information distribution by a multicast operation and identification of information indicating content are notified through a broadcast channel to a mobile subscriber. Through the broadcast channel, information necessary for actual reception of communication data is notified. In the mobile subscriber, a surround environment of the mobile subscriber is checked to determine the possibility of simultaneous receiving from a plurality of other base station systems. If possible, similar notified information is also received from other base station systems. Thus, all kinds of information regarding the spread code or the like to be used for receiving distributed information are obtained.

First claim

Opening claim text (preview).

What is claimed is: 1. A mobile station comprising: a receiver that is configured to: receive a notification of a starting of a multicast communication transmitted by a first base station system that receives a request for the multicast communication from a node after the node receives the request for the multicast communication from a gateway which receives the request for the multicast communication from a server; receive information for a data reception of the multicast com…

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What does patent US8995970B2 cover?
A multicast communication method in a CDMA mobile communication system is disclosed, which is capable of reducing a transmission power in a base station system and performing an efficient multicast operation for a large number of mobile subscribers is provided. Starting of information distribution by a multicast operation and identification of information indicating content are notified through…
Who is the assignee on this patent?
Tsukagoshi Tsutomu, Nec Corp
What technology area does this patent fall under?
Primary CPC classification H04L12/185. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).