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1. 发明专利

AU2002348739A1 SYSTEM AND HANDOVER MECHANISM IN FREQUENCY MULTIPLE BAND ENVIRONMENT AND EQUIPMENT THEREFOR 未知
公开(公告)号：AU2002348739A1
公开(公告)日：2004-07-14
申请号：AU2002348739
申请日：2002-12-19
申请人： NOKIA CORP
发明人： VAISANEN ARI , SINIVAARA HASSE
IPC分类号： H04L12/28 , H04L12/56 , H04W36/08 , H04W36/12 , H04W36/14 , H04W36/36 , H04W48/08 , H04W84/04 , H04W84/12 , H04Q7/38
摘要： A mechanism for supporting the decision on performing a communication connection changeover of a subscriber terminal in a wireless communication network, in particular in a multiple band WLAN, is proposed. The subscriber terminal is a to communicate with an access node on two or more frequency bands. AP related communication information are detected which comprises, besides information indicating a multiple band capability, a traffic load, a frequency band coverage and/or a frequency channel information. The communication information are broadcasted, for example, by means of the AP beacon frame, processed and used for a decision on a communication connection changeover of the subscriber terminal.

2. 发明专利

AU7927400A Expansion card for wireless data transmission and antenna structure for the same 未知
公开(公告)号：AU7927400A
公开(公告)日：2001-04-30
申请号：AU7927400
申请日：2000-10-18
申请人： NOKIA CORP
发明人： VAISANEN ARI , PETTERSON JUHA-PEKKA
IPC分类号： H01Q1/24 , H01Q1/38
摘要： The present invention relates to an expansion card and an antenna structure for this expansion card for wireless data transmission, which card (C) comprises a card part (1) to be placed inside an expansion card interface of an electronic device, and which antenna part for receiving and transmitting of signals comprises at least one electroconductive, radiating antenna plane (31) and a ground plane (32) arranged parallel to the same, at a distance, as well as a dielectric (33) between said planes. In the invention, for improving the antenna properties, said antenna structure is placed in a housing part (2) which is connected to the end of the card part (1) and which comprises a cover structure (21) and a bottom structure (22), for extending said antenna structure at least partly outside said interface, wherein the antenna plane (32) is arranged on the side of the cover structure (21), the ground plane (32) is arranged on the side of the bottom structure (22), and said dielectric is arranged a free clearance.

3. 发明专利

CA2524692A1 SYSTEM AND HANDOVER MECHANISM IN FREQUENCY MULTIPLE BAND ENVIRONMENT AND EQUIPMENT THEREFOR 未知
公开(公告)号：CA2524692A1
公开(公告)日：2004-07-08
申请号：CA2524692
申请日：2002-12-19
申请人： NOKIA CORP
发明人： VAISANEN ARI , SINIVAARA HASSE
IPC分类号： H04L12/28 , H04L12/56 , H04W36/08 , H04W36/12 , H04W36/14 , H04W36/36 , H04W48/08 , H04W84/04 , H04W84/12 , H04Q7/38
摘要： A mechanism for supporting the decision on performing a communication connection changeover of a subscriber terminal in a wireless communication network, in particular in a multiple band WLAN, is proposed. The subscriber terminal is able to communicate with an access node on two or more frequency bands. AP related communication information are detected which comprises, besides information indicating a multiple band capability, a traffic load, a frequency band coverage and/or a frequency channel information. The communication information are broadcasted, for example, by means of the AP beacon frame, processed and used for a decision on a communication connectio n changeover of the subscriber terminal.

4. 发明专利

DE60021813T2 未知
公开(公告)号：DE60021813T2
公开(公告)日：2006-06-01
申请号：DE60021813
申请日：2000-05-26
申请人： NOKIA CORP
发明人： VAISANEN ARI , ORAVA PEKKO
IPC分类号： H04B7/06 , H01L31/02 , H01Q1/24 , H01Q3/24 , H01Q21/28 , H04B1/44 , H04B7/08 , H04B7/26 , H04L12/28 , H04L12/56
摘要： Antenna switching circuitry in a multi-transceiver mobile terminal 10, which features a first switching unit (SW1) which controllably couples a first transceiver port (P1) to either a first antenna port (PA1) or a second antenna port (PA2);and a second switching unit (SW2) which controllably couples the second antenna port (PA2) to either the first transceiver port (P1), through the first switching unit (SW1), or to an input/output port (PI/O) of a second transceiver (12). According to this scheme, the second antenna port is coupled to the input/output port of the second transceiver (12) in a mode in which the second transceiver (12) is operational, the first transceiver port (P1) being decoupled from the second antenna port at this time, wherein the first transceiver port is coupled to the first antenna port and the input/output port of the second transceiver (12) is decoupled from the second antenna port, when the first transceiver is in a transmit mode, and wherein the first transceiver port is coupled to either of the first and second antenna ports, when the first transceiver (11) is in a receiving mode and the input/output port of the second transceiver (12) is decoupled from the second antenna port.

5. 发明专利

AU3967800A Method in a wireless data transmission system and a wireless data transmission system 未知
公开(公告)号：AU3967800A
公开(公告)日：2000-11-14
申请号：AU3967800
申请日：2000-04-12
申请人： NOKIA CORP
发明人： LAPPETELAINEN ANTTI , VAISANEN ARI , SMOLANDER VISA TAPIO
IPC分类号： H04L12/28 , H04L12/56 , H04W72/04 , H04W74/00 , H04Q7/38 , H04B7/26
摘要： The invention relates to a method in a wireless data transmission system (1) which comprises wireless terminals (MT1-MT4), at least a first access point (AP1) and a first access point controller (AC1), a second access point (AP2) and a second access point controller (AC2). In the data transmission, data frames are used. In the invention, two allocation strategies are defined of which two are selected at a time. From the data frames, a first starting point (TS11, TS21) and a second starting point (TS1n, TS2n) are determined. In order to select a strategy, it is examined whether there is other traffic on the channel. If other traffic can be detected, it is examined which allocation strategy is selected, and an allocation strategy which is different from that of the examined connection is selected for the connection to be set up. However, if traffic is not detected, it is possible to select the allocation strategy freely. In the first allocation strategy, the allocation of the time slots of the data field (D1, D2) is started from the first starting point (TS11, TS21) of the data field, and in the second allocation strategy, the allocation of the time slots of the data field is started from the second starting point (TS1n, TS2n) of the data field.

6. 发明专利

DE60021813D1 未知
公开(公告)号：DE60021813D1
公开(公告)日：2005-09-15
申请号：DE60021813
申请日：2000-05-26
申请人： NOKIA CORP
发明人： VAISANEN ARI , ORAVA PEKKO
IPC分类号： H01Q1/24 , H01Q3/24 , H01Q21/28 , H04B1/44 , H04B7/08 , H04B7/26 , H04L12/28 , H04B7/06 , H01L31/02 , H04L12/56
摘要： Antenna switching circuitry in a multi-transceiver mobile terminal 10, which features a first switching unit (SW1) which controllably couples a first transceiver port (P1) to either a first antenna port (PA1) or a second antenna port (PA2);and a second switching unit (SW2) which controllably couples the second antenna port (PA2) to either the first transceiver port (P1), through the first switching unit (SW1), or to an input/output port (PI/O) of a second transceiver (12). According to this scheme, the second antenna port is coupled to the input/output port of the second transceiver (12) in a mode in which the second transceiver (12) is operational, the first transceiver port (P1) being decoupled from the second antenna port at this time, wherein the first transceiver port is coupled to the first antenna port and the input/output port of the second transceiver (12) is decoupled from the second antenna port, when the first transceiver is in a transmit mode, and wherein the first transceiver port is coupled to either of the first and second antenna ports, when the first transceiver (11) is in a receiving mode and the input/output port of the second transceiver (12) is decoupled from the second antenna port.

7. 发明专利

AT301888T 未知
公开(公告)号：AT301888T
公开(公告)日：2005-08-15
申请号：AT00304489
申请日：2000-05-26
申请人： NOKIA CORP
发明人： VAISANEN ARI , ORAVA PEKKO
IPC分类号： H01Q1/24 , H01Q3/24 , H01Q21/28 , H04B1/44 , H04B7/08 , H04B7/26 , H04L12/28 , H04B7/06 , H04L12/56
摘要： Antenna switching circuitry in a multi-transceiver mobile terminal 10, which features a first switching unit (SW1) which controllably couples a first transceiver port (P1) to either a first antenna port (PA1) or a second antenna port (PA2);and a second switching unit (SW2) which controllably couples the second antenna port (PA2) to either the first transceiver port (P1), through the first switching unit (SW1), or to an input/output port (PI/O) of a second transceiver (12). According to this scheme, the second antenna port is coupled to the input/output port of the second transceiver (12) in a mode in which the second transceiver (12) is operational, the first transceiver port (P1) being decoupled from the second antenna port at this time, wherein the first transceiver port is coupled to the first antenna port and the input/output port of the second transceiver (12) is decoupled from the second antenna port, when the first transceiver is in a transmit mode, and wherein the first transceiver port is coupled to either of the first and second antenna ports, when the first transceiver (11) is in a receiving mode and the input/output port of the second transceiver (12) is decoupled from the second antenna port.

8. 发明专利

AU2003290135A1 SELECTION OF ACCESS POINT IN A WIRELESS COMMUNICATION SYSTEM 未知
公开(公告)号：AU2003290135A1
公开(公告)日：2004-08-10
申请号：AU2003290135
申请日：2003-12-30
申请人： NOKIA CORP
发明人： SINIVAARA HASSE , VAISANEN ARI
IPC分类号： H04B7/02 , H04L12/28 , H04W48/20 , H04Q7/38

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