Method and apparatus for the transmission of packets of data

Abstract

A method of transmitting packets of data in a communication network comprising at least first to third stations the method comprising the steps of sending a first number of the data packets from the first station to a second station; identifying which of the first number of packets are correctly received by the second station from the first station; and sending a second number of data packets from the third station to said second station commencing with the packet identified as being required after the last correctly received packet received form the first station.

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Patent Type

Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: Illustrative part: ---- Release: + -	No	Family Member
3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: Illustrative part: ---- Release: + -	Yes	Basis Patent

Specification Information

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Specification Information

Spec Number

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Technologies

2G 3G 4G 5G

Family Information

All Granted Patents In Patent Family :	----
All Pending Patents In Patent Family :	----

SEP Database Augmented SEP Database

Explicitly Disclosed

Patent Type

Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
EP1099355A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
EP1099355A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
EP1099355B1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
EP1099355B1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
JP2002521935A	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
JP4460162B2	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2001012279A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US2001012279A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
WO0005909A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
WO0005909A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
AT421234T	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
AU5281799A	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US2006083184A1	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US7742451B2	3G,2G	18/04/2002	ISLD-200205-002	NOKIA CORP	S1 TS Number: TS 123 060 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member

Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
-----	-----	-----	-----	-----	S1 TS Number: ----- Version No: ----- Section No:----- Release:----- + -				-----	-----	-----	-----

Technologies

Mobility and handover

Product

Not Available

Use Cases

Not Available

Services

Not Available

Claim

1. A method of transmitting packets of data in a communication network comprising at least first to third stations, the method comprising the steps of:
providing data packets to only the first station and sending a first number of the data packets from the first station to a second station;
subsequently providing the data packets to both said first and third station when the second station has at least one predefined parameter with respect to said first and third station;
identifying via said second station which of the first number of the data packets are correctly received by the second station from the first station;
responsive to a signal from said second station, sending a second number of the data packets from the third station to said second station commencing with a data packet identified in said signal as being required after the last correctly received packet received from the first station, wherein said network comprises a common node connected to said first and third stations and said first station is in communication with a first node and the third station is in communication with a second node; and
acknowledge receipt of a data packet at the second station, wherein acknowledgement is forwarded to the common node by one of said first and second nodes and the common node advises the other of the first and second nodes that an acknowledgement has been received.', 'providing data packets to only the first station and sending a first number of the data packets from the first station to a second station;', 'subsequently providing the data packets to both said first and third station when the second station has at least one predefined parameter with respect to said first and third station;', 'identifying via said second station which of the first number of the data packets are correctly received by the second station from the first station;', 'responsive to a signal from said second station, sending a second number of the data packets from the third station to said second station commencing with a data packet identified in said signal as being required after the last correctly received packet received from the first station, wherein said network comprises a common node connected to said first and third stations and said first station is in communication with a first node and the third station is in communication with a second node; and', 'acknowledge receipt of a data packet at the second station, wherein acknowledgement is forwarded to the common node by one of said first and second nodes and the common node advises the other of the first and second nodes that an acknowledgement has been received.

2. A method as claimed in claim 1, wherein said common node being arranged to transmit data packets to said first and third stations.

3. A method as claimed in claim 2, wherein the common node associates a unique number for each packet and the same data packets, each of which is associated with the unique number are transmitted from said common node to both of the first and third stations.

4. A method as claimed in claim 2, wherein said first and second nodes being in communication with said common node.

5. A method as claimed in claim 4 wherein the first and second nodes and/or the first and third stations are connected together.

6. A method as claimed in claim 2, wherein the first and third stations are connected to the common node via a network.

7. A method as claimed in claim 2, wherein data storage means is provided in said common node.

8. A method as claimed in claim 1 including the step of acknowledging by the second station correct receipt of the data packet identified in said signal as being required.

9. A method as claimed in claim 1, further comprising the steps of:
subsequent to said step of sending a second number of data packets providing data packets to only the third station.', 'subsequent to said step of sending a second number of data packets providing data packets to only the third station

10. A method as claimed in claim 9 further comprising the steps of:
providing data packets to only the third station in response to said second station no longer having said at least one predefined parameter with respect to said first and third stations.', 'providing data packets to only the third station in response to said second station no longer having said at least one predefined parameter with respect to said first and third stations

11. A method as claimed in claim 1 further comprising the steps of:
indicating to said common node that the second station is reachable via both of said first and third stations;
transmitting the same data packets from the common node to at least one data storage means in the first and third stations;
transmitting said same data packets from the at least one data storage means in the first and third stations to said second station;
identifying a received packet at the third station and acknowledging receipt of that packet; and
removing said acknowledged packet from the at least one data storage means in said third station.', 'indicating to said common node that the second station is reachable via both of said first and third stations;', 'transmitting the same data packets from the common node to at least one data storage means in the first and third stations;', 'transmitting said same data packets from the at least one data storage means in the first and third stations to said second station;', 'identifying a received packet at the third station and acknowledging receipt of that packet; and', 'removing said acknowledged packet from the at least one data storage means in said third station

12. A method as claimed in claim 11, wherein the common node controls the removal of said identified data packet from the or each data storage means

13. A method as claimed in claim 11, wherein the first station is connected to the first node and the third station is connected to the second node and one of the first and second nodes is arranged to be the common node and said acknowledged packet is forwarded to the common node

14. A method as claimed is claim 1, wherein said predefined parameter is defined by the geographic position of the second station with respect to the first and third stations

15. A method as claimed in claim 1, wherein said at least one predefined parameter is defined by at least one parameter of signals received from at least one of said first and third stations satisfying a predetermined criteria

16. A method as claimed in claim 15, wherein said signal parameter is the power level of a signal received at the second station from at least one of said first and third stations

17. A method as claimed in claim 15, wherein said signal parameter is the ratio of power level of signals received at the second station from the first and third stations

18. A method as claimed in claim 15, wherein said signal parameter is the quantity of the signal received at the second station from at least one of said first and third stations

19. A method as claimed in claim 15, wherein said signal parameter is the quantity of traffic associated with at least one of said first and third stations.

20. A method as claimed in claim 15, wherein said parameter is averaged over time before it is determined if said criteria is satisfied.

21. A method as claimed in claim 1, wherein said predefined parameter is the quality of signals associated with at least one of said first and third stations.

22. A method as claimed in claim 1, wherein said predefined parameter defines a handsoff zone in which said first station hands off to said third station in that said second station stops receiving data packets from said first station and starts receiving data packets from said third station.

23. A method as claimed in claim 22, wherein said handsoff zone is surrounded on either side by a zone in which the second station receives data packets from a respective one of said first and third stations and said first and third stations are provided with the same data packets.

24. A method as claimed in claim 1, wherein when handoff takes place, said second station transmits a signal to the third station to advise the third station of which packet or packets were received from the first station and said third station transmits the data packet identified as being required after the last packet to said second station.

25. A method as claimed in claim 1, wherein if said second station does not correctly receive a data packet, said second station requests retransmission of said data packet.

26. A method as claimed in claim 1, wherein said communication network has a plurality of cells or areas and said second station is able to register with one or more cells or areas of said network at the same time.

27. A method as claimed in claim 1, wherein packets of data are forwarded to at least one of said first and third stations before a connection is made with said second station.

28. A system of transmitting packets of data in a communication network comprising:
first, second and third stations; and
a common node connected to said first and third stations, wherein said first station is in communication with a first node and the third station is in communication with a second node, wherein said first station only is provided initially with data packets and is arranged to send a first number of the data packets to the second station, subsequently the data packets are provided to both said first and third station when the second station has at least one predefined parameter with respect to said first and third station, and wherein the second station is arranged to identify which of the first number of the data packets it receives from the first station, the third station is arranged to send a second number of the data packets to the second station in response to a signal from said second station commencing with the data packet identified in said signal as being required after the last correctly received packet from the first station, and the second station is arranged to acknowledge receipt of a data packet at the second station, wherein the acknowledgement is forwarded to the common node by one of said first and second nodes and the common node advises the other of the first and second nodes that an acknowledgement has been received.', 'first, second and third stations; and', 'a common node connected to said first and third stations, wherein said first station is in communication with a first node and the third station is in communication with a second node, wherein said first station only is provided initially with data packets and is arranged to send a first number of the data packets to the second station, subsequently the data packets are provided to both said first and third station when the second station has at least one predefined parameter with respect to said first and third station, and wherein the second station is arranged to identify which of the first number of the data packets it receives from the first station, the third station is arranged to send a second number of the data packets to the second station in response to a signal from said second station commencing with the data packet identified in said signal as being required after the last correctly received packet from the first station, and the second station is arranged to acknowledge receipt of a data packet at the second station, wherein the acknowledgement is forwarded to the common node by one of said first and second nodes and the common node advises the other of the first and second nodes that an acknowledgement has been received.

29. A system as claimed in claim 28, wherein said first and third stations comprise storage means for storing data packets prior to transmission to said second station.

30. A system as claimed in claim 29, wherein said storage means comprises a buffer.

31. A system as claimed in claim 28 wherein the second station is arranged to determine the last packet correctly received by the second station from the first station and the third station is arranged to transmit the packet subsequent to the last correctly received packet to the second station.

32. A system as claimed in claim 28, wherein the first and third stations are both provided with at least some of the same data packets for transmission to said second station.

33. A wireless communication network, comprising:
a node configured to send data packets to a base station for transmission to a mobile station, wherein
said node is configured to start sending the data packets both to a first base station and a second base station as a response to a predetermined condition for transmission to the mobile station; and
a common node connected to said first base station and said second base station, wherein said first base station is in communication with a first node and the second base station is in communication with a second node, wherein said first base station only is provided initially with the data packets and is arranged to send a first number of the data packets to the mobile station, subsequently the data packets are provided to both said first and second base stations when the mobile station has at least one predefined parameter with respect to said first and second base station, and wherein the mobile station is arranged to identify which of the first number of the data packets it receives from the first base station, the second base station is arranged to send a second number of data packets to the mobile station in response to a signal from said mobile station commencing with the data packet identified in said signal as being required after the last correctly received packet from the first base station, and the mobile station is arranged to acknowledge receipt of a data packet at the mobile station, wherein the acknowledgement is forwarded to the common node by one of said first and second nodes and the common node advises the other of the first and second nodes that an acknowledgement has been received.', 'a node configured to send data packets to a base station for transmission to a mobile station, wherein', 'said node is configured to start sending the data packets both to a first base station and a second base station as a response to a predetermined condition for transmission to the mobile station; and', 'a common node connected to said first base station and said second base station, wherein said first base station is in communication with a first node and the second base station is in communication with a second node, wherein said first base station only is provided initially with the data packets and is arranged to send a first number of the data packets to the mobile station, subsequently the data packets are provided to both said first and second base stations when the mobile station has at least one predefined parameter with respect to said first and second base station, and wherein the mobile station is arranged to identify which of the first number of the data packets it receives from the first base station, the second base station is arranged to send a second number of data packets to the mobile station in response to a signal from said mobile station commencing with the data packet identified in said signal as being required after the last correctly received packet from the first base station, and the mobile station is arranged to acknowledge receipt of a data packet at the mobile station, wherein the acknowledgement is forwarded to the common node by one of said first and second nodes and the common node advises the other of the first and second nodes that an acknowledgement has been received.

34. A node according to claim 33, wherein
said node is configured to stop sending the data packets to one of the first base station and the second base station as a response to an indication received from one of the first base station and the second base station.', 'said node is configured to stop sending the data packets to one of the first base station and the second base station as a response to an indication received from one of the first base station and the second base station.

35. A node according to claim 33, wherein said node is a base station controller.']

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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

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