SYSTEM AND METHOD FOR TRANSMITTING AND RECEIVING A SIGNAL USING MULTIPLE FEQUENCY BANDS IN A WIRELESS COMMUNICATION SYSTEM

• US 20130288683A1
• Filed: 06/27/2013
• Published: 10/31/2013
• Est. Priority Date: 03/03/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kang, Hyun-Jeong, Roh, Won-Il, Cho, Jae-Hee, Son, Jung-Je, Jun, Byung-Wook, Lee, Sung-Jin, Jang, Jae-Hyuk, Chang, Young-Bin, Oh, Chang-Yoon, Son, Yeong-Moon
• Granted Patent: US 10,159,059 B2
• Time in Patent Office: Days
• US Class Current: 455/436
• CPC Class Codes: H04W 36/06 Reselecting a communication resource in the serving access point
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

Disclosed is a system and a method of signal transmission/reception by a mobile station in a wireless communication system. The method includes: transmitting a first sub-band preparation indicator, which indicates that the mobile station has been prepared for transmission/reception of a signal through a first sub-band, to a base station through a primary band; transmitting a first sub-band failure indicator to the base station through the primary band upon detecting failure in transmitting the first sub-band preparation indicator; receiving sub-band information on a second sub-band, which is different from the first sub-band, from the BS through the primary band; and acquiring synchronization with the second sub-band, so as to enable transmission/reception of a signal through the second sub-band based on the sub-band information.

Claims

1-45. -45. (canceled)

46. A method of managing frequency bands by a base station in a wireless communication system, the method comprising:

communicating with a mobile station using a primary frequency band, wherein the primary frequency band is always activated;

transmitting a first message including information regarding a secondary frequency band to a mobile station using the primary frequency band;

determining whether a response message is received from the mobile station within a time period, the response message being transmitted from the mobile station in response to the first message; and

performing communication with the mobile station using the primary frequency band and the secondary frequency band according to the information regarding the secondary frequency band.

47. The method according to claim 46, wherein the secondary frequency band is configured prior to being activated by the base station.

48. A method of managing frequency bands by a base station in a wireless communication system, the method comprising:

transmitting a first message including information regarding a first secondary frequency band to a mobile station using a primary frequency band;

determining whether a response message is received from the mobile station within a time period, the response message being transmitted from the mobile station in response to the first message;

if the response message is not received within the time period, transmitting a second message including information regarding a second secondary frequency band to the mobile station; and

performing communication with the mobile station using the primary frequency band and the second secondary frequency band according to the information regarding the second secondary frequency band.

49. The method according to claim 48, wherein the second secondary frequency band is configured prior to being activated by the base station.

50. A method of managing at least one frequency by a mobile station in a wireless communication system, the method comprising:

communicating with a base station using a primary frequency;

receiving a first message including information regarding a secondary frequency band from the base on the primary frequency;

transmitting a response to the first message to the base station;

activating or deactivating the secondary frequency according to the first message received from the base station;

performing communication with the base station using the primary frequency and the secondary frequency.

51. The method according to claim 50, wherein the mobile station is configured with the secondary frequency before activating or deactivating the secondary frequency according to the first message received from the base station.

52. The method according to claim 50, wherein the mobile station is configured with one or more secondary frequencies by higher layer signaling before activating or deactivating the secondary frequency according to the first message received from the base station.

53. The method according to claim 50, wherein the primary frequency is always activated.

54. The method according to claim 50, wherein the primary frequency is changed with handover.

55. The method according to claim 50, wherein activating or deactivating the secondary frequency according to the first message received from the base station is performed based on a predetermined time after receiving the first message including the information regarding the secondary frequency from the base station using the primary frequency.

56. The method according to claim 50, wherein the first message comprises information regarding one or more secondary frequencies.

57. The method according to claim 50, wherein the first message comprises an activation or deactivation of one or more secondary frequencies.

58. The method according to claim 50, wherein transmitting a response is performed within a predetermined time.

59. The method according to claim 50, wherein the mobile station is configured with one or more secondary frequencies by higher layer signaling based on the mobile station capability before activating or deactivating the secondary frequency according to the first message received from the base station.

60. The method according to claim 50, wherein information regarding whether the mobile station is configured with one or more secondary frequencies can be changed by higher layer signaling.

61. A base station capable of managing frequency bands in a wireless communication system, the base station comprising:

a transmitter configured to communicate with a mobile station using a primary frequency band, wherein the primary frequency band is always activated, and to transmit a first message including information regarding a secondary frequency band to a mobile station using the primary frequency band; and

a controller configured to determine whether a response message is received from the mobile station within a time period, the response message being transmitted from the mobile station in response to the first message,

wherein the transmitter is configured to perform communication with the mobile station using the primary frequency band and the secondary frequency band according to the information regarding the secondary frequency band.

62. The base station according to claim 61, wherein the secondary frequency band is configured prior to being activated by the base station.

63. A base station capable of managing frequency bands in a wireless communication system, the base station comprising:

a transmitter configured to transmit a first message including information regarding a first secondary frequency band to a mobile station using a primary frequency band; and

a controller configured to determine whether a response message is received from the mobile station within a time period, the response message being transmitted from the mobile station in response to the first message,

wherein the transmitter is configured, if the response message is not received within the time period, to transmit a second message including information regarding a second secondary frequency band to the mobile station, and

wherein the transmitter is configured to perform communication with the mobile station using the primary frequency band and the second secondary frequency band according to the information regarding the second secondary frequency band.

64. The base station according to claim 63, wherein the second secondary frequency band is configured prior to being activated by the base station.

65. A mobile station capable of managing at least one frequency in a wireless communication system, the mobile station comprising:

a transmitter configured to communicate with a base station using a primary frequency;

a receiver configured to receive a first message including information regarding a secondary frequency band from the base on the primary frequency, wherein the transmitter is configured to transmit a response to the first message to the base station; and

a controller configured to activate or deactivatee the secondary frequency according to the first message received from the base station,

wherein the transmitter is configured to perform communication with the base station using the primary frequency and the secondary frequency.

66. The mobile station according to claim 65, wherein the mobile station is configured with the secondary frequency before activating or deactivating the secondary frequency according to the first message received from the base station.

67. The mobile station according to claim 65, wherein the mobile station is configured with one or more secondary frequencies by higher layer signaling before activating or deactivating the secondary frequency according to the first message received from the base station.

68. The mobile station according to claim 65, wherein the primary frequency is always activated.

69. The mobile station according to claim 65, wherein the primary frequency is changed with handover.

70. The mobile station according to claim 65, wherein activating or deactivating the secondary frequency according to the first message received from the base station is performed based on a predetermined time after receiving the first message including the information regarding the secondary frequency from the base station using the primary frequency.

71. The mobile station according to claim 65, wherein the first message comprises information regarding one or more secondary frequencies.

72. The mobile station according to claim 65, wherein the first message comprises an activation or deactivation of one or more secondary frequencies.

73. The mobile station according to claim 65, wherein the transmitter is configured to transmit the response within a predetermined time.

74. The mobile station according to claim 65, wherein the mobile station is configured with one or more secondary frequencies by higher layer signaling based on the mobile station capability before activating or deactivating the secondary frequency according to the first message received from the base station.

75. The mobile station according to claim 65, wherein information regarding whether the mobile station is configured with one or more secondary frequencies can be changed by higher layer signaling.