Method and arrangement for transferring information in a packet radio service

• US 8,213,304 B2
• Filed: 01/26/2009
• Issued: 07/03/2012
• Est. Priority Date: 11/27/1998
• Status: Expired due to Term

• Current Assignee: Intellectual Ventures I LLC (Intellectual Ventures LLC)
• Original Assignee: Intellectual Ventures I LLC (Intellectual Ventures LLC)
• Inventors: Forssell, Mika, Parantainen, Janne
• Primary Examiner(s): Pham, Chi H.
• Assistant Examiner(s): MEW, KEVIN D
• Application Number:
  US12/359,763
• Publication Number:
  US 20090154443A1
• Time in Patent Office: 1,254 Days
• Field of Search: 370229-230, 370328-329337, 370347-348, 370352-356, 370/389, 370/477, 4504521-4522, 450/455
• US Class Current: 370/230
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels
• CPC Class Codes: H04W 76/25 Maintenance of established connections

Abstract

A method and an arrangement for transferring information including delay sensitive data, such as speech and video data, in a packet radio service is provided. Data blocks are transmitted from a mobile station to a radio resource entity during a first active data transfer period using an uplink temporary block flow (TBF) connection. The uplink TBF connection is maintained during a passive period that follows the first active data transfer period, wherein during the passive period the mobile station does not send data blocks to the radio resource entity.

Claims

1. A method, comprising:

transmitting data blocks from a mobile station to a radio resource entity during a first active data transfer period using an uplink temporary block flow (TBF) connection; and

maintaining, at the mobile station, the uplink TBF connection during a passive period that follows the first active data transfer period, wherein during the passive period the mobile station does not send data blocks to the radio resource entity.

2. The method of claim 1, further comprising exchanging information between the mobile station and the radio resource entity to cause the mobile station to operate in a mode under which an uplink TBF connection is maintained during a passive period.

3. The method of claim 2, further comprising creating a control connection between the mobile station and the radio resource entity, wherein said information is transferred over the control connection.

4. The method of claim 1, further comprising:

receiving uplink transfer permission from the radio resource entity at the mobile station during the passive period;

upon having one or more data blocks ready for transmission during the passive period and having uplink transmission permission, transmitting the one or more data blocks to the radio resource entity during a second active data transfer period that follows the passive period.

5. The method of claim 1, further comprising sending Packet Dummy Control Blocks from the mobile station to the radio resource entity over the uplink TBF during the passive period.

6. The method of claim 1, further comprising sending a signaling message from the mobile station to the radio resource entity during the passive period indicating the mobile station does not have any data blocks to send at the time.

7. A mobile station for communicating with a radio resource entity in a communications system, comprising:

a transceiver configured to transmit wireless communications to and receive wireless communications from radio resource entities in the communications system via data channels and control channels associated with such communications;

a controller configured to control transmission of data blocks to the radio resource entity via the transceiver during a first active data transfer period using an uplink temporary block flow (TBF) connection and to maintain the uplink TBF connection during a passive period that follows the first active data transfer period, wherein during the passive period the mobile station does not send data blocks to the radio resource entity.

8. The mobile station of claim 7, wherein the transceiver receives uplink transfer permission from the radio resource entity during the passive period, and, upon having one or more data blocks ready for transmission during the passive period and having uplink transmission permission, transmits the one or more data blocks to the radio resource entity during a second active data transfer period that follows the passive period.

9. The mobile station of claim 7, wherein the controller is further configured to exchange information with the radio resource entity via the transceiver using at least one data channel or control channel to cause the mobile station to operate in a mode under which the uplink TBF connection is maintained during a passive period.

10. The mobile station of claim 9, wherein said controller is further configured to set up a control channel with the radio resource entity, and wherein said information is transferred over the control channel.

11. The mobile station of claim 7, wherein the controller is further configured to send Packet Dummy Control Blocks via the transceiver to the radio resource entity over the uplink TBF during the passive period.

12. The mobile station of claim 7, wherein the controller is further configured to send a signaling message via the transceiver to the radio resource entity during the passive period indicating the mobile station does not have any data blocks to send at the time.

13. A radio resource entity of a communications system for communicating with a mobile station, the radio resource entity comprising:

a transceiver configured to receive data blocks from the mobile station during a first active data transfer period using an uplink temporary block flow (TBF) connection on a packet data channel between the mobile station and the radio resource entity; and

a controller configured to maintain the uplink TBF connection during a passive period that follows the first active data transfer period, wherein the passive period occurs when the mobile station does not send data blocks to the radio resource entity.

14. The radio resource entity of claim 13, wherein the controller is further configured to exchange information with the mobile station using at least one data channel or control channel to cause the mobile station to operate in a mode under which the uplink TBF connection is maintained during a passive period.

15. The radio resource entity of claim 13, wherein the controller is further configured to cause transmission of uplink transfer permission to the mobile station during a passive period.

16. The radio resource entity of claim 13, wherein the controller is further configured to:

allocate a first connection on a packet data channel to a first mobile station;

receive data from the first mobile station over the first connection during an active data transfer period;

determine that a passive period exists on the first connection during which the first connection is inactive;

allocate a second connection on the packet data channel to a second mobile station;

receive data from the second mobile station via the second connection while maintaining the first connection during the passive period.

17. The radio resource entity of claim 16, wherein the controller is further configured to reallocate the second connection to another packet data channel in response to the first connection becoming active again.

18. The radio resource entity of claim 13, wherein when allocating data transfer resources for a first direction of packet data transfer, resources are also allocated for packet data transfer of the opposite data transfer direction.

29. The non-transitory computer-readable medium of claim 13, further comprising instructions to, when allocating data transfer resources for a first direction of packet data transfer, also allocate resources for packet data transfer of the opposite data transfer direction.

19. A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising:

instructions to transmit data blocks from a mobile station to a radio resource entity during a first active data transfer period using an uplink temporary block flow (TBF) connection; and

instructions to maintain the uplink TBF connection during a passive period that follows the first active data transfer period, wherein during the passive period the mobile station does not send data blocks to the radio resource entity.

20. The non-transitory computer-readable medium of claim 19, further comprising instructions to exchange information between the mobile station and the radio resource entity to cause the mobile station to operate in a mode under which an uplink TBF connection is maintained during a passive period.

21. The non-transitory computer-readable medium of claim 20, further comprising instructions to create a control connection between the mobile station and the radio resource entity, wherein the information is transferred over the control connection.

22. The non-transitory computer-readable medium of claim 19, further comprising:

receiving uplink transfer permission from the radio resource entity at the mobile station during the passive period;

upon having one or more data blocks ready for transmission during the passive period and having uplink transmission permission, transmitting the one or more data blocks to the radio resource entity during a second active data transfer period that follows the passive period.

23. The non-transitory computer-readable medium of claim 19, further comprising instructions to send Packet Dummy Control Blocks from the mobile station to the radio resource entity over the uplink TBF during the passive period.

24. The non-transitory computer-readable medium of claim 19, further comprising instructions to send a signaling message from the mobile station to the radio resource entity during the passive period indicating the mobile station does not have any data blocks to send at the time.

25. A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising:

instructions to receive data blocks from the mobile station during a first active data transfer period using an uplink temporary block flow (TBF) connection on a packet data channel between the mobile station and the radio resource entity; and

instructions to maintain the uplink TBF connection during a passive period that follows the first active data transfer period, wherein the passive period occurs when the mobile station does not send data blocks to the radio resource entity.

26. The non-transitory computer-readable medium of claim 25, further instructions to transmit uplink transfer permission to the mobile station during a passive period.

27. The non-transitory computer-readable medium of claim 25, further comprising:

instructions to allocate a first connection on a packet data channel to a first mobile station;

instructions to receive data from the first mobile station over the first connection during an active data transfer period;

instructions to determine that a passive period exists on the first connection during which the first connection is inactive;

instructions to allocate a second connection on the packet data channel to a second mobile station;

instructions to receive data from the second mobile station via the second connection while maintaining the first connection during the passive period.

28. The non-transitory computer-readable medium of claim 25, further comprising instructions to reallocate the second connection to another packet data channel in response to the first connection becoming active again.