Gap and preamble parameters for control channel transmission

• US 20080043681A1
• Filed: 07/11/2007
• Published: 02/21/2008
• Est. Priority Date: 08/21/2006
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Vimpari, Anna-Mari, Ranta-Aho, Karri
• Application Number:
  US11/827,447
• Publication Number:
  US 20080043681A1
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04B 7/2656 for structure of frame, burst

Abstract

The specification and drawings present a new method, system, apparatus and software product for defining parameters for a control signal (e.g., discontinuous signal) for an uplink control channel using a predetermined criterion depending on a maximum allowed data rate and/or an actual data rate of a data signal on an uplink data channel. The parameters can comprise at least one of: a preamble length of a preamble of the control signal, a gap length of inactive transmission period, and/or a burst length of an active transmission period of the control signal. The uplink control channel can be an uplink dedicated physical control channel (DPCCH) and the data channel can be an enhanced dedicated channel (E-DCH).

Claims

1. A method, comprising:

defining at least one parameter of a control signal for an uplink control channel using a predetermined criterion, said at least one parameter depending on at least one of;

a maximum allowed data rate of a data signal on an uplink data channel, and

an actual data rate of said data signal; and

transmitting said control signal with said at least one parameter on said uplink control channel by a user equipment to a network element.

2. The method of claim 1, wherein said control signal is discontinuous and said at least one parameter comprises at least one of:

a preamble length of a preamble of said control signal,

a gap length of inactive transmission period, and

a burst length of an active transmission period.

3. The method of claim 1, wherein a dependence of said at least one parameter on said maximum allowed data rate or on said actual data rate according to said predetermined criterion is provided by the network element or provided in a specification.

4. The method of claim 1, wherein there is at least one threshold value for said maximum allowed data rate or for said actual data rate below which said at least one parameter, defined according to the predetermined criterion, has a first value and above which said at least one parameter has a second value.

5. The method of claim 1, wherein said network element is a Node B and said network element and said user equipment are configured for wireless communications.

6. The method of claim 1, wherein maximum allowed data rate is provided by said network element.

7. The method of claim 1, wherein said uplink control channel is an uplink dedicated physical control channel and said data channel is an enhanced dedicated channel.

8. The method of claim 7, wherein said maximum allowed data rate for said uplink dedicated physical control channel is determined by said user equipment using one of:

a maximum allowed relative power for an uplink dedicated physical control channel, said allowed relative power being provided by the network element to the user equipment, and

a maximum number of bits for a MAC-e protocol data unit for a given MAC-d flow.

9. The method of claim 1, wherein said defining is provided by said user equipment.

10. A computer program product comprising:

a computer readable storage structure embodying computer program code thereon for execution by a computer processor with said computer program code, wherein said computer program code comprises instructions for performing the method of claim 1, indicated as being performed by a component or a combination of components of a user equipment or a network element.

11. A user equipment, comprising:

an uplink scheduling and signal generating module, configured to define at least one parameter of a control signal for an uplink control channel using a predetermined criterion, said at least one parameter depending on at least one of;

a maximum allowed data rate of a data signal on an uplink data channel, and

an actual data rate of said data signal; and

a receiving/transmitting/processing module, configured to transmit said control signal with said at least one parameter on said uplink control channel to a network element.

12. The user equipment of claim 11, wherein said control signal is discontinuous and said at least one parameter comprises at least one of:

a preamble length of a preamble of said control signal,

a gap length of inactive transmission period, and

a burst length of an active transmission period.

13. The user equipment of claim 11, wherein a dependence of said at least one parameter on said maximum allowed data rate or on said actual data rate according to said predetermined criterion is provided by the network element or provided in a specification.

14. The user equipment of claim 11, wherein there is at least one threshold value for said maximum allowed data rate or for said actual data rate below which said at least one parameter, defined according to the predetermined criterion, has a first value and above which said at least one parameter has a second value.

15. The user equipment of claim 11, wherein maximum allowed data rate is provided to said user equipment by said network element.

16. The user equipment of claim 11, wherein said uplink control channel is an uplink dedicated physical control channel and said data channel is an enhanced dedicated channel.

17. The user equipment of claim 16, wherein the uplink scheduling and signal generating module is configured to determine said maximum allowed data rate for said uplink dedicated physical control channel using one of:

a maximum allowed relative power for an uplink dedicated physical control channel, said allowed relative power being provided by the network element to the user equipment, and

a maximum number of bits for a MAC-e protocol data unit for a given MAC-d flow.

18. The user equipment of claim 11, wherein an integrated circuit comprises the uplink scheduling and signal generating module and the receiving/transmitting/processing module.

19. A user equipment, comprising:

means for defining at least one parameter of a control signal for an uplink control channel using a predetermined criterion, said at least one parameter depending on at least one of;

a maximum allowed data rate of a data signal on an uplink data channel, and

an actual data rate of said data signal; and

means for transmitting said control signal with said at least one parameter on said uplink control channel to a network element.

20. The user equipment of claim 19, wherein said at least one parameter comprises at least one of:

a preamble length of a preamble of said control signal,

a gap length of inactive transmission period, and

a burst length of an active transmission period.

21. A network element, comprising:

an uplink planning and scheduling module, configured to provide at least one of;

a maximum allowed data rate of a data signal on an uplink data channel, and

a maximum allowed relative power for an uplink dedicated physical control channel,

which are for defining at least one parameter of a control signal for an uplink control channel using a predetermined criterion; and

a receiver, configured to receive said control signal with said at least one parameter transmitted by a user equipment on said uplink control channel.

22. The network element of claim 21, wherein said defining of said at least one parameter is performed by the user equipment or by the network element.

23. The user equipment of claim 21, wherein said control signal is discontinuous and said at least one parameter comprises at least one of:

a preamble length of a preamble of said control signal,

a gap length of inactive transmission period, and

a burst length of an active transmission period.

24. A communication system, comprising:

a user equipment, configured to provide a data signal on an uplink data channel and a control signal on an uplink control channel, wherein at least one parameter of the control signal is defined by a predetermined criterion using at least one of;

a maximum allowed data rate of a data signal on an uplink data channel, and

an actual data rate of said data signal;

control channel;

and a network element, configured to receive said control signal with said at least one parameter.

25. The system of claim 24, wherein said network element is a Node B and said network element and said user equipment are configured for wireless communications.

26. The system of claim 24, wherein said defining is provided by said network element or by said user equipment.

27. The system of claim 24, wherein said control signal is discontinuous and said at least one parameter comprises at least one of:

a preamble length of a preamble of said control signal,

a gap length of inactive transmission period, and

a burst length of an active transmission period.

28. A method, comprising:

defining at least one parameter of a control signal for an uplink control channel using a predetermined criterion, said at least one parameter depending on at least one of;

a maximum allowed data rate of a data signal on an uplink data channel, and

an actual data rate of said data signal; and

receiving by a network element said control signal with said at least one parameter on said uplink control channel.

29. The method of claim 28, wherein said defining is provided by said network element and said control signal is provided by a user equipment.

30. The method of claim 28, wherein said control signal is discontinuous and said at least one parameter comprise at least one of:

a preamble length of a preamble of said control signal,

a gap length of inactive transmission period, and

a burst length of an active transmission period.

31. A computer program product comprising:

a computer readable storage structure embodying computer program code thereon for execution by a computer processor with said computer program code, wherein said computer program code comprises instructions for performing the method of claim 28, indicated as being performed by a component or a combination of components of a user equipment or a network element.