Exchanging Patterns of Shared Resources between Machine-Type and Human Traffic

• US 20160242229A1
• Filed: 10/03/2014
• Published: 08/18/2016
• Est. Priority Date: 10/04/2013
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Dimou, Konstantinos, Balachandran, Kumar, Kazmi, Muhammad, Walln, Anders
• Granted Patent: US 10,314,103 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Abstract

Techniques are disclosed for creating and using a pattern of radio resources to be shared in a cell between devices using an enhanced-coverage mode and at least one other category of devices. An example method includes forming (810) a resource pattern, the resource pattern indicating an allocation of first radio resources in a first cell to a first type of wireless device and indicating an allocation of second radio resources in the first cell to a second type of wireless device. The resource pattern is sent (820) to a second network node of the wireless communication system, e.g., a network node serving a neighboring cell, or to at least one wireless device, or to both. The resource pattern may be used in scheduling by the first network node or the second network node, or both.

Claims

1-46. -46. (canceled)

47. A method, in a first network node of a wireless communication system, of allocating radio resources in a first cell among at least first and second types of wireless devices, the method comprising:

forming a first resource pattern, the first resource pattern indicating an allocation of first radio resources in the first cell, in the time domain, to the first type of wireless device and indicating an allocation of second radio resources in the first cell, in the time domain, to the second type of wireless device; and

sending the first resource pattern to a second network node of the wireless communication system, or to least one wireless device, or to both.

48. The method of claim 47, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode.

49. The method of claim 48, wherein the wireless devices that are capable of operating in an enhanced-coverage mode are machine-to-machine (M2M) wireless devices.

50. The method of claim 47, wherein the first type of wireless device consists of wireless devices operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices operating in normal-coverage mode.

51. The method of claim 47, the method further comprising scheduling uplink and/or downlink transmissions in the first cell for at least one wireless device of each type, using the first resource pattern.

52. The method of claim 51, the method further comprising receiving a second resource pattern from a second network node of the wireless communication system, the second resource pattern indicating allocations, by the second network node, of radio resources in a second cell, in the time domain, to the first and second types of wireless device, wherein said scheduling uplink and/or downlink resources is based at least partly on the received second resource pattern.

53. The method of claim 47, the method further comprising receiving a second resource pattern from a second network node of the wireless communication system, the second resource pattern indicating allocations, by the second network node, of radio resources in a second cell, in the time domain, to the first and second types of wireless device, wherein said forming the first resource pattern is based at least partly on the received second resource pattern.

54. The method of claim 47, wherein forming the first resource pattern is based at least partly on an evaluation of traffic distribution among the first and second types of wireless device.

55. The method of claim 47, wherein forming the first resource pattern is based at least partly on an evaluation of expected signal quality for one or more of the radio resources.

56. The method of claim 55, wherein the first type of wireless device consists of wireless devices that are capable of supporting an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode, and wherein forming the first resource pattern comprises allocating radio resources expected to have the lowest signal quality for one or more of the wireless devices to the first type of wireless device.

57. The method of claim 47, wherein forming the first resource pattern comprises allocating radio resources to the first type of wireless device according to the proportion of wireless devices of the first type among the wireless devices of the first and second types.

58. The method of claim 47, further comprising receiving a capability indicator from the wireless device, the capability indicator indicating that the wireless device is capable of handling a resource pattern indicating an allocation in a cell by the network node of first set of radio resources in the time domain to the first type of wireless device and indicating an allocation in the cell of second set of radio resources in the time domain to the second type of wireless device.

59. A method, in a second network node of a wireless communication system, of managing radio resource allocations to at least first and second types of wireless devices, the method comprising:

receiving, from a first network node in the wireless communication system, a first resource pattern, the first resource pattern indicating an allocation in a first cell by the first network node of first radio resources in the time domain to the first type of wireless device and indicating an allocation in the first cell of second radio resources in the time domain to the second type of wireless device; and

scheduling uplink and/or downlink transmissions for at least one wireless device of each type, based at least in part on the first resource pattern.

60. The method of claim 59, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode.

61. The method of claim 59, further comprising forming a second resource pattern, the second resource pattern indicating allocations, by the second network node, of radio resources in a second cell, in the time domain, to the first and second types of wireless device, wherein said forming of the second resource pattern is based at least partly on the received first resource pattern.

62. The method of claim 61, wherein forming the second resource pattern is further based at least partly on an evaluation of traffic distribution among the first and second types of wireless device.

63. The method of claim 61, wherein forming the second resource pattern is based at least partly on an evaluation of expected signal quality for one or more of the resources.

64. A method in a wireless device operating in a wireless communication system, wherein the wireless device is either of a first type or a second type, the method comprising:

receiving a first resource pattern from a network node, the first resource pattern indicating an allocation in a cell by the network node of first radio resources in the time domain to the first type of wireless device and indicating an allocation in the cell of second radio resources in the time domain to the second type of wireless device; and

performing one or more radio operations based on the first resource pattern and based on the type of the wireless device.

65. The method of claim 64, wherein performing one or more radio operations based on the first resource pattern and based on the type of the wireless device comprises adjusting a discontinuous receive (DRX) cycle or discontinuous transmit (DTX) cycle, or both.

66. The method of claim 64, wherein performing one or more radio operations based on the first resource pattern and based on the type of the wireless device comprises:

interference handling or mitigation;

performing a measurement;

adaptation of receiver type; and

transmitting information about the received first resource pattern to another wireless device.

67. The method of claim 64, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode.

68. The method of claim 64, further comprising signaling a capability indicator to the network node, the capability indicator indicating that the wireless device is capable of handling a resource pattern that indicates an allocation in a cell by the network node of first set of radio resources in the time domain to the first type of wireless device and that indicates an allocation in the cell of second set of radio resources in the time domain to the second type of wireless device.

69. A network node adapted to allocate radio resources among at least first and second types of wireless devices, the network node comprising a radio transceiver configured to communicate with wireless devices and further comprising a processing circuit configured to:

form a first resource pattern, the first resource pattern indicating an allocation in a cell of first radio resources in the time domain to the first type of wireless device and indicating an allocation in the cell of second radio resources in the time domain to the second type of wireless device; and

send the first resource pattern to a second network node of the wireless communication system, or to least one wireless device, or to both.

70. The network node of claim 69, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode.

71. The network node of claim 69, wherein the processing circuit is further configured to schedule uplink and/or downlink transmissions for at least one wireless device of each type, using the first resource pattern.

72. The network node of claim 71, wherein the processing circuit is further configured to receive a second resource pattern from a second network node of the wireless communication system, the second resource pattern indicating allocations in a second cell, by the second network node, of radio resources in the time domain to the first and second types of wireless device, and wherein the processing circuit is configured to perform said scheduling based at least partly on the received second resource pattern.

73. The network node of claim 69, wherein the processing circuit is further configured to receive a second resource pattern from a second network node of the wireless communication system, the second resource pattern indicating allocations in a second cell, by the second network node, of radio resources in the time domain to the first and second types of wireless device, wherein the processing circuit is configured to perform said forming based at least partly on the received second resource pattern.

74. The network node of claim 69, wherein the processing circuit is configured to perform said forming based at least partly on an evaluation of traffic distribution among the first and second types of wireless device.

75. The network node of claim 69, wherein the processing circuit is configured to perform said forming based at least partly on an evaluation of expected signal quality for one or more of the resources.

76. The network node of claim 75, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode, and wherein\the processing circuit is configured to allocate resources expected to have the lowest signal quality for one or more of the wireless devices to the first type of wireless device.

77. The method of claim 69, wherein the processing circuit is configured to allocate radio resources to the first type of wireless device according to the proportion of wireless devices of the first type.

78. A network node of a wireless communication system, for managing radio resource allocations to at least first and second types of wireless devices, the network node comprising a radio transceiver configured to communicate with wireless devices and further comprising a processing circuit configured to:

receive, from a first network node in the wireless communication system, a first resource pattern, the first resource pattern indicating an allocation in a first cell by the first network node of first radio resources in the time domain to the first type of wireless device and indicating an allocation in the first cell of second radio resources in the time domain to the second type of wireless device; and

schedule uplink and/or downlink transmissions for at least one wireless device of each type, based at least in part on the first resource pattern.

79. The network node of claim 78, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode.

80. The network node of claim 78, wherein the processing circuit is further configured to form a second resource pattern, based at least partly on the received first resource pattern, the second resource pattern indicating allocations, by the second network node, of radio resources in a second cell, in the time domain, to the first and second types of wireless device.

81. The network node of claim 80, wherein the processing circuit is configured to form the second resource pattern based at least partly on an evaluation of traffic distribution among the first and second types of wireless device.

82. The network node of claim 80, wherein the processing circuit is configured to form the second resource pattern based at least partly on an evaluation of expected signal quality for one or more of the resources.

83. A wireless device adapted to operate in a wireless communication network, the wireless device comprising a radio transceiver configured to communicate with a network node and further comprising a processing circuit configured to:

receive a first resource pattern from a network node, the first resource pattern indicating an allocation in a cell by the network node of first radio resources in the time domain to the first type of wireless device and indicating an allocation in the cell of second radio resources in the time domain to the second type of wireless device; and

adjust a discontinuous receive (DRX) cycle or discontinuous transmit (DTX) cycle, or both, based on the first resource pattern and based on the type of the wireless device.

84. The wireless device of claim 83, wherein the processing circuit is configured to adjust a discontinuous receive (DRX) cycle or discontinuous transmit (DTX) cycle, or both, based on the first resource pattern and based on the type of the wireless device.

85. The wireless device of claim 83, wherein the first type of wireless device consists of wireless devices that are capable of operating in an enhanced-coverage mode and the second type of wireless device comprises wireless devices that do not support the enhanced-coverage mode.

86. The wireless device of claim 83, wherein the processing circuit is further configured to signal a capability indicator to the network node, the capability indicator indicating that the wireless device is configured to handle resource patterns allocating radio resources in a cell by wireless device type.