Abstract
A multicast communication method in a CDMA mobile communication system which is capable of reducing a transmission power in a base station system, and is capable of performing an efficient multicast operation for a large number of mobile subscribers is provided. The starting of information distribution by a multicast operation and identification information indicating a content of the information thereof are notified through a broadcast channel to a mobile subscriber. Further, through the broadcast channel, information such as a spread code or the like to be used at this time, which is necessary for actual reception of communication data, is notified. Then, 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.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
| 3G | 27/02/2009 | ISLD-200903-005 | NEC CORP | Yes | Family Member | ||||
| 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
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| GB2346512A | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| GB2346512A | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| GB2346512B | 3G | 27/02/2009 | ISLD-200903-005 | NEC CORP | Yes | Family Member | ||||
| GB2346512B | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| GB2346512B | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US6542755B1 | 3G | 27/02/2009 | ISLD-200903-005 | NEC CORP | Yes | Family Member | ||||
| US6542755B1 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US6542755B1 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
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| US2006142031A1 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US2006142031A1 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US7215948B2 | 3G | 27/02/2009 | ISLD-200903-005 | NEC CORP | Yes | Family Member | ||||
| US7215948B2 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US7215948B2 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
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| US8249567B2 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US8249567B2 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| JP2000175263A | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Basis Patent | ||||
| JP2000175263A | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Basis Patent | ||||
| JP3022530B1 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Basis Patent | ||||
| JP3022530B1 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Basis Patent | ||||
| US2012307705A1 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US2012307705A1 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US8995970B2 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US8995970B2 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | Yes | Family Member | ||||
| US2015173043A1 | 4G | 27/09/2013 | ISLD-201310-003 | NEC CORP | No | Family Member | ||||
| US2015173043A1 | 4G,3G | 27/09/2013 | ISLD-201310-003 | NEC CORP | No | Family Member | ||||
| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Broadcast/Multicast
Product
Use Cases
Wireless communication
Services
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.