METHOD FOR ACQUIRING SYSTEM FRAME NUMBER BY TERMINAL, TERMINAL, AND MOBILE COMMUNICATION SYSTEM

• US 20150358957A1
• Filed: 11/03/2014
• Published: 12/10/2015
• Est. Priority Date: 11/01/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Sangbum, KIM, Soenghun, JEONG, Kyeongin, VAN LIESHOUT, Gert Jan, VAN DER VELDE, Himke
• Granted Patent: US 10,306,604 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/2603 Arrangements for wireless physical layer control H04B7/2612 takes precedence
• CPC Class Codes: H04J 11/0069 Cell search, i.e. determining cell identity [cell-ID] design of multiplexing codes H04J13/00; processing access restriction or access information H04W48/16; discovery of network devices for network data management H04W8/005; sounding signals for channel estimation H04L25/0226; structure of reference signals in multicarrier modulation systems H04L27/2613; frame, time or carrier synchronisation in multicarrier modulation systems H04L27/2655
• CPC Class Codes: H04L 5/0058 Allocation criteria
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/20 Selecting an access point
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

A System Frame Number (SFN) acquisition method is provided. The System Frame Number (SFN) acquisition method of a terminal according to the present invention includes receiving a first message for adding a secondary cell of a secondary base station from a primary cell of a primary base station, receiving a Master Information Block (MIB) broadcast in the secondary cell, and acquiring a SFN information for the secondary cell from the MIB, and applying the SFN information to at least one cell of the secondary base station.

Claims

1-26. -26. (canceled)

27. A method by a terminal in a wireless communication system, the method comprising:

receiving, on a first cell of a first base station, a first message for adding a second cell of a second base station;

receiving a master information block (MIB) on the second cell of the second base station;

identifying a system frame number (SFN) based on the received MIB; and

applying the identified SFN to at least one cell of the second base station.

28. The method of claim 27, wherein the second cell is configured with physical uplink control channel (PUCCH) resources.

29. The method of claim 27, wherein the second cell is primary secondary cell (PSCell).

30. The method of claim 27, wherein a master cell group (MCG) is controlled by the first base station, and a secondary cell group (SCG) is controlled by the second base station.

31. The method of claim 27, wherein a timing of the SFN associated with the at least one cell of the second base station is different from a time of a SFN associated with at least one cell of the first base station.

32. The method of claim 27, wherein the first message includes system information of the at least one cell except for the SFN.

33. A method for by a base station in a wireless communication system, the method comprising:

configuring a first cell, having physical uplink control channel (PUCCH) resources, of the base station; and

transmitting, on the first cell to a terminal which is connected to another base station by a second cell, a master information block (MIB) including a system frame number (SFN) which is applied to at least one cell of the base station.

34. The method of claim 33, wherein the first cell is primary secondary cell (PSCell).

35. The method of claim 33, wherein a secondary cell group (SCG) is controlled by the base station, and a master cell group (MCG) is controlled by the other base station.

36. The method of claim 33, wherein a timing of the SFN associated with the at least one cell of the base station is different from a time of a SFN associated with at least one cell of the other base station.

37. The method of claim 33, wherein a first message which is transmitted from the other base station to the terminal for adding the first cell to the terminal includes system information of the at least one cell of the base station except for the SFN.

38. A method by a base station in a wireless communication system, the method comprising:

determining to add a first cell of another base station to a terminal which is connected to a second cell of the base station; and

transmitting, to the terminal, a first message including system information which is applied to at least one cell of the other base station, except for a system frame number (SFN),

wherein the SFN which is applied to the at least one cell of the other base station is transmitted to the terminal on the first cell of the other base station.

39. The method of claim 38, wherein the first cell is configured with physical uplink control channel (PUCCH) resources.

40. The method of claim 38, wherein the first cell is primary secondary cell (PSCell).

41. The method of claim 38, wherein a master cell group (MCG) is controlled by the base station, and a secondary cell group (SCG) is controlled by the other base station.

42. The method of claim 39, wherein a timing of the SFN associated with the at least one cell of the other base station is different from a time of a SFN associated with at least one cell of the base station.

43. A terminal comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

receive, on a first cell of a first base station, a first message for adding a second cell of a second base station,

receive a master information block (MIB) on the second cell of the second base station, to identify a system frame number (SFN) based on the received MIB, and

apply the identified SFN to at least one cell of the second base station.

44. The terminal of claim 43, wherein the second cell is configured with physical uplink control channel (PUCCH) resources.

45. The terminal of claim 43, wherein the second cell is primary secondary cell (PSCell).

46. The terminal of claim 43, wherein a master cell group (MCG) is controlled by the first base station, and a secondary cell group (SCG) is controlled by the second base station.

47. The terminal of claim 43, wherein a timing of the SFN associated with the at least one cell of the second base station is different from a time of a SFN associated with at least one cell of the first base station.

48. The terminal of claim 43, wherein the first message includes system information of the at least one cell except for the SFN.

49. A base station for providing a system frame number (SFN) in a wireless communication system, the base station comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

configure a first cell, having physical uplink control channel (PUCCH) resources, of the base station, and

transmit, on the first cell to a terminal which is connected to another base station by a second cell, a master information block (MIB) including a system frame number (SFN) which is applied to at least one cell of the base station.

50. The base station of claim 49, wherein the first cell is primary secondary cell (PSCell).

51. The base station of claim 49, wherein a secondary cell group (SCG) is controlled by the base station, and a master cell group (MCG) is controlled by the other base station.

52. The base station of claim 49, wherein a timing of the SFN associated with the at least one cell of the base station is different from a time of a SFN associated with at least one cell of the other base station.

53. The base station of claim 49, wherein a first message which is transmitted from the other base station to the terminal for adding the first cell to the terminal includes system information of the at least one cell of the base station except for the SFN.

54. A base station for providing a system frame number (SFN) in a wireless communication system, the base station comprising:

a transceiver configured to transmit and receive a signal; and

a controller configured to;

determine to add a first cell of another base station to a terminal which is connected to a second cell of the base station, and

transmit, to the terminal, a first message including system information which is applied to at least one cell of the other base station, except for a system frame number (SFN),

wherein the SFN which is applied to the at least one cell of the other base station is transmitted to the terminal on the first cell of the other base station.

55. The base station of claim 54, wherein the first cell is configured with physical uplink control channel (PUCCH) resources.

56. The base station of claim 54, wherein the first cell is primary secondary cell (PSCell).

57. The base station of claim 54, wherein a master cell group (MCG) is controlled by the base station, and a secondary cell group (SCG) is controlled by the other base station.

58. The base station of claim 54, wherein a timing of the SFN associated with the at least one cell of the other base station is different from a time of a SFN associated with at least one cell of the base station.