Extended dynamic resource allocation in packet data transfer

• US 20050002374A1
• Filed: 02/27/2004
• Published: 01/06/2005
• Est. Priority Date: 06/18/2003
• Status: Active Grant

• Current Assignee: Mentone Solutions LLC (IP Edge LLC)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Cooper, David Edward, Beard, Timothy Giles
• Granted Patent: US 6,952,413 B2
• Time in Patent Office: Days
• US Class Current: 370/347
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

A method for control of packet data transmissions in a TDMA wireless network to provide for additional choices in the allocation of communication channels. The fixed relationship in the timing of the downlink allocation signalling and subsequent uplink transmission is altered for certain classes of mobile station to avoid physical constraints. Examples of variations in USF signalling in GPRS are given.

Claims

1-31. -31. (Canceled).

32. A multiple access communication method for a mobile station, comprising the steps of:

receiving an uplink status flag (USF) on a downlink slot;

monitoring the downlink slot to detect the USF; and

performing transmission on an uplink slot assigned by the USF,

wherein if shifted USF operation is not used, then a first downlink slot is monitored to detect a USF for assigning a first uplink slot and if the shifted USF operation is used, then a second downlink slot is monitored to detect both the USF for assigning the first uplink slot and a USF for assigning a second uplink slot.

33. The method according to claim 32, wherein if the USF for assigning the first uplink slot is detected on the second downlink slot then the transmission is performed on the first uplink slot.

34. The method according to claim 33, wherein if the USF for assigning the first uplink slot is detected on the second downlink slot, then the transmission is performed on the first uplink slot and all consecutive uplink slots allocated for uplink transmission.

35. The method according to claim 33, wherein if the USF for assigning the first uplink slot is not detected on the second downlink slot, then the second downlink slot is monitored to detect the USF for assigning the second uplink slot.

36. The method according to claim 35, wherein if the USF for assigning the second uplink slot is detected on the second downlink slot, then the transmission is performed on the second uplink slot.

37. The method according to claim 32, wherein a value of the USF for assigning the first uplink slot is different from a value for assigning the second uplink slot.

38. The method according to claim 32, wherein the transmission is performed on an nth (n being an integer) uplink slot if a USF for assigning the nth uplink slot is detected on an nth downlink slot.

39. The method according to claim 38, wherein the transmission is performed on the nth uplink slot and all consecutive uplink slots allocated for uplink transmission if the USF for assigning the nth uplink slot is detected on the nth downlink slot.

40. The method according to claim 32, wherein eight consecutive uplink slots form an uplink TDMA frame and eight consecutive downlink slots form a downlink TDMA frame.

41. The method according to claim 40, wherein if a USF for assigning an nth (n being an integer) uplink slot is detected on an nth downlink slot of a present downlink TDMA frame, the transmission is performed on the nth uplink slot of a next uplink TDMA frame or consecutive group of uplink TDMA frames.

42. The method according to claim 40, wherein an offset between the uplink TDMA frame and the downlink TDMA frame is three slots or approximately three slots.

43. The method according to claim 32, further comprising the step of performing adjacent cell signal level measurement and preparation for reception prior to re-configuration from transmission to reception.

44. The method according to claim 43, wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is three slots.

45. The method according to claim 43, wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot.

46. The method according to claim 43, wherein the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot and thirty one symbol periods timing advance offset.

47. The method according to claim 32, further comprising the step of:

performing adjacent cell signal level measurement and preparation for reception prior to re-configuration from reception to transmission,

wherein the time needed for performing adjacent cell signal level measurement and preparation for transmission is one slot.

48. The method according to claim 44, wherein usage of the shifted USF operation is indicated if three slots are allocated for the uplink transmission in the uplink TDMA frame.

49. The method according to claim 45, wherein usage of the shifted USF operation is indicated if five slots are allocated for the uplink transmission in the uplink TDMA frame.

50. The method according to claim 46, wherein usage of the shifted USF operation is indicated if five slots are allocated for the uplink transmission in the uplink TDMA frame.

51. The method according to claim 47, wherein usage of the shifted USF operation is indicated if six slots are allocated for the uplink transmission in the uplink TDMA frame.

52. The method according to claim 48, wherein the indication to use the shifted USF operation is automatic.

53. The method according to claim 49, wherein the indication to use the shifted USF operation is automatic.

54. The method according to claim 50, wherein the indication to use the shifted USF operation is automatic.

55. The method according to claim 51, wherein the indication to use the shifted USF operation is automatic.

56. The method according to claim 32, wherein the number of multi-slot class is any one of multi-slot classes 7, 34, 39 and 45.

57. A mobile station apparatus for multiple access communication, comprising:

a reception section that receives an uplink status flag (USF) on a downlink slot;

a detection section that monitors the downlink slot to detect the USF; and

a transmission section that performs transmission on an uplink slot assigned by the USF,

wherein if shifted USF operation is not used, then the detection section monitors a first downlink slot to detect a USF for assigning a first uplink slot and if the shifted USF operation is used, then the detection section monitors a second downlink slot to detect both the USF for assigning the first uplink slot and a USF for assigning a second uplink slot.

58. The apparatus according to claim 57, wherein if the USF for assigning the first uplink slot is detected on the second downlink slot, then the transmission is performed on the first uplink slot.

59. The apparatus according to claim 58, wherein if the USF for assigning the first uplink slot is detected on the second downlink slot, then the transmission is performed on the first uplink slot and all consecutive uplink slots allocated for uplink transmission.

60. The apparatus according to claim 58, wherein if the USF for assigning the first uplink slot is not detected on the second downlink slot, then the second uplink slot is monitored to detect the USF for assigning the second uplink slot.

61. The apparatus according to claim 60, wherein if the USF for assigning the second uplink slot is detected on the second downlink slot, then the transmission is performed on the second uplink slot.

62. The apparatus according to claim 57, wherein a value of the USF for assigning the first uplink slot is different from a value for assigning the second uplink slot.

63. The apparatus according to claim 57, wherein the transmission is performed on an nth (n being an integer) uplink slot if a USF for assigning the nth uplink slot is detected on an nth downlink slot.

64. The apparatus according to claim 63, wherein the transmission is performed on the nth uplink slot and all consecutive uplink slots allocated for uplink transmission if the USF for assigning the nth uplink slot is detected on the nth downlink slot.

65. The apparatus according to claim 57, wherein eight consecutive uplink slots form an uplink TDMA frame and eight consecutive downlink slots form a downlink TDMA frame.

66. The apparatus according to claim 65, wherein if a USF for assigning an nth (n being an integer) uplink slot is detected on an nth downlink slot of a present downlink TDMA frame, the transmission is performed on the nth uplink slot of a next uplink TDMA frame or consecutive group of uplink TDMA frames.

67. The apparatus according to claim 65, wherein an offset between the uplink TDMA frame and the downlink TDMA frame is three slots or approximately three slots.

68. The apparatus according to claim 57, further comprising:

a preparation section that prepares for reception prior to reconfiguration from transmission to reception; and

a measurement section that performs adjacent cell signal level measurement prior to re-configuration from transmission to reception or prior to re-configuration from reception to transmission.

69. The apparatus according to claim 68, wherein the measurement section performs adjacent cell signal level measurement prior to reconfiguration from transmission to reception and the time needed for performing adjacent cell signal level measurement and preparation for reception is three slots.

70. The apparatus according to claim 68, wherein the measurement section performs adjacent cell signal level measurement prior to reconfiguration from transmission to reception and the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot.

71. The apparatus according to claim 68, wherein the measurement section performs adjacent cell signal level measurement prior to reconfiguration from transmission to reception and the time needed for performing adjacent cell signal level measurement and preparation for reception is one slot and thirty one symbol periods timing advance offset.

72. The apparatus according to claim 68, wherein the measurement section performs adjacent cell signal level measurement prior to reconfiguration from reception to transmission and the time needed for performing adjacent cell signal level measurement and preparation for transmission is one slot.

73. The apparatus according to claim 69, wherein usage of the shifted USF operation is indicated if three slots are allocated for the uplink transmission in the uplink TDMA frame.

74. The apparatus according to claim 70, wherein usage of the shifted USF operation is indicated if five slots are allocated for the uplink transmission in the uplink TDMA frame.

75. The apparatus according to claim 71, wherein usage of the shifted USF operation is indicated if five slots are allocated for the uplink transmission in the uplink TDMA frame.

76. The apparatus according to claim 72, wherein usage of the shifted USF operation is indicated if six slots are allocated for the uplink transmission in the uplink TDMA frame.

77. The apparatus according to claim 73, wherein the indication to use the shifted USF operation is automatic.

78. The apparatus according to claim 74, wherein the indication to use the shifted USF operation is automatic.

79. The apparatus according to claim 75, wherein the indication to use the shifted USF operation is automatic.

80. The apparatus according to claim 76, wherein the indication to use the shifted USF operation is automatic.

81. The apparatus according to claim 57, wherein the number of multi-slot class is any one of multi-slot classes 7, 34, 39 and 45.

82. A multiple access communication system, comprising:

a base station apparatus that transmits a uplink status flag (USF) on a downlink slot; and

a mobile station apparatus that receives the USF on the downlink slot, monitors the downlink slot to detect the USF and performs transmission on an uplink slot assigned by the USF,

wherein if shifted USF operation is not used, then the mobile station apparatus monitors a first downlink slot to detect a USF for assigning a first uplink slot and if the shifted USF operation is used, then the mobile station apparatus monitors a second downlink slot to detect both the USF for assigning the first uplink slot and a USF for assigning a second uplink slot.