METHOD OF CONFIGURING AND SEARCHING HIGH SPEED SHARED CONTROL CHANNEL OF MULTI-CARRIER CELL

• US 20090116432A1
• Filed: 08/17/2006
• Published: 05/07/2009
• Est. Priority Date: 08/17/2005
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Zheng, Yongqiang, Ma, Zijiang, Zhang, Yincheng, Ma, Zhifeng
• Granted Patent: US 8,054,788 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 92/12 between access points and access point controllers

Abstract

The present invention relates to a method for configuring and searching HS-SCCHs of a multi-carrier cell in a TD-SCDMA system. The network side configures the configuration information of a HS-SCCH set for a UE and notifies the UE through high layer signaling, wherein each HS-SCCH corresponds to a frequency point of high speed shared resources; the UE divides the HS-SCCH set into several subsets, and HS-SCCHs of the same subset correspond to the same frequency points; the UE selects the minimum value N from the number of carriers supported by itself, the number of the frequency points, and the number of the HS-SCCH subsets; the UE searches each HS-SCCH subset to be searched in turn, and if a consistent HS-SCCH is found, then the UE stops searching the other HS-SCCHs of the subset, the UE moves said subset out of the group of the HS-SCCH subsets to be searched, and adds the found HS-SCCH into a valid HS-SCCH set to be monitored; if the number of the HS-SCCHs of the valid HS-SCCH set equals to N, then stop searching. The present invention can increase the efficiency of searching the HS-SCCHs by the UE with satisfying normal communication requires.

Claims

1-10. -10. (canceled)

11. A method for facilitating data communication involving a terminal device, the terminal device being associated with an identifier, the terminal device being compatible with services provided by a set of compatible carriers, the set of compatible carriers including a number of carriers, the method comprising:

receiving information pertaining to a first control channel set;

dividing the first control channel set into a number of control channel subsets, each control channel subset of the control channel subsets being associated with at least one of a carrier and a frequency point, the control channel subsets including a first control channel subset, the first control channel subset including a first control channel;

including the control channel subsets into a control channel subset group;

searching the first control channel subset until the first control channel is found, wherein the first control channel is consistent with the identifier;

stopping searching the first control channel subset after the first control channel has been found;

moving the first control channel subset out of the control channel subset group after the First control channel has been found;

adding the first control channel to a second control chancel set, the second control channel subset including control channels that are consistent with the identifier; and

monitoring the control channels that are consistent with the identifier in the second control channel set.

12. The method of claim 11 further comprising:

searching each control channel subset in the control channel subset group until a control channel consistent with the identifier is found in the control channel subset;

moving the control channel subset out of the control channel subset group if the control channel consistent with the identifier has been found; and

adding the control channel consistent with the identifier to the second control channel set.

13. The method of claim 11 further comprising:

determining whether a number of the control channels that are consistent with the identifier in the second control channel set is equal to a threshold number, the threshold number being a minimum of at least the number of the control channel subsets and the number of the carriers; and

searching one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is not equal to the threshold number.

14. The method of claim 13 wherein the threshold number is a minimum of at least the number of the control channel subsets, the number of the carriers, and a number of frequency points configured by a network.

15. The method of claim 13 wherein the minimum of at least the number of the control channel subsets and the number of the carriers is the number of the control channel subsets.

16. The method of claim 13 wherein the minimum of at least the number of the control channel subsets and the number of the carriers is the number of the carriers.

17. The method of claim 11 further comprising:

determining whether a number of the control channels that are consistent with the identifier in the second control channel set is equal to a threshold number, the threshold number being a minimum of at least the number of the control channel subsets and the number of the carriers; and

stopping searching one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is equal to the threshold number.

18. The method of claim 11 further comprising:

determining whether the first control channel has become inconsistent with the identifier;

moving the first control channel out of the second control channel set if the first control channel has become inconsistent with the identifier; and

resuming searching the first control channel subset if the first control channel has become inconsistent with the identifier.

19. The method of claim 18 further comprising adding the first control channel subset back to the control channel subset group if after the resuming not any control channel consistent with the identifier is found in the first control channel subset.

20. the method of claim 19 further comprising:

searching one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is not equal to a threshold number, the threshold number being a minimum of at least the number of the control channel subsets and the number of the carriers; and

stopping searching the one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is equal to the threshold number.

21. An article of manufacture comprising a program storage medium having computer readable code embodied therein, the computer readable code being configured for facilitating data communication involving a terminal device, the terminal device being associated with an identifier, the terminal device being compatible with services provided by a set of compatible carriers, the set of compatible carriers including a number of carriers, the article of manufacture comprising:

code for receiving information pertaining to a first control channel set;

code for dividing the first control channel set into a number of control channel subsets, each control channel subset of the control channel subsets being associated with at least one of a carrier and a frequency point, the control channel subsets including a first control channel subset, the first control channel subset including a first control channel;

code for including the control channel subsets into a control channel subset group;

code for searching the first control channel subset until the first control channel is found, wherein the first control channel is consistent with the identifier;

code for stopping searching the first control channel subset after the first control channel has been found;

code for moving the first control channel subset out of the control channel subset group after the first control channel has been found;

code for adding the first control channel to a second control chancel set, the second control channel subset including control channels that are consistent with the identifier; and

code for monitoring the control channels that are consistent with the identifier in the second control channel set.

22. The article of manufacture of claim 21 further comprising:

code for searching each control channel subset in the control channel subset group until a control channel consistent with the identifier is found in the control channel subset;

code for moving the control channel subset out of the control channel subset group if the control channel consistent with the identifier has been found; and

code for adding the control channel consistent with the identifier to the second control chancel set.

23. The article of manufacture of claim 21 further comprising:

code for determining whether a number of the control channels that are consistent with the identifier in the second control channel set is equal to a threshold number, the threshold number being a minimum of at least the number of the control channel subsets and the number of the carriers; and

code for searching one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is not equal to the threshold number.

24. The article of manufacture of claim 23 wherein the threshold number is a minimum of at least the number of the control channel subsets, the number of the carriers, and a number of frequency points configured by a network.

25. The article of manufacture of claim 23 wherein the minimum of at least the number of the control channel subsets and the number of the carriers is the number of the control channel subsets.

26. The article of manufacture of claim 23 wherein the minimum of at least the number of the control channel subsets and the number of the carriers is the number of the carriers.

27. The article of manufacture of claim 21 further comprising:

code for determining whether a number of the control channels that are consistent with the identifier in the second control channel set is equal to a threshold number, the threshold number being a minimum of at least the number of the control channel subsets and the number of the carriers; and

code for stopping searching one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is equal to the threshold number.

28. The article of manufacture of claim 21 further comprising:

code for determining whether the first control channel has become inconsistent with the identifier;

code for moving the first control channel out of the second control channel set if the first control channel has become inconsistent with the identifier; and

code for resuming searching the first control channel subset if the first control channel has become inconsistent with the identifier.

29. The article of manufacture of claim 28 further comprising code for adding the first control channel subset back to the control channel subset group if after the resuming not any control channel consistent with the identifier is found in the first control channel subset.

30. the article of manufacture of claim 29 further comprising:

code for searching one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is not equal to a threshold number, the threshold number being a minimum of at least the number of the control channel subsets and the number of the carriers; and

code for stopping searching the one or more other control channel subsets in the control channel subset group if the number of the control channels that are consistent with the identifier in the second control channel set is equal to the threshold number.