WIRELESS TERMINALS, NODES OF WIRELESS COMMUNICATION NETWORKS, AND METHODS OF OPERATING THE SAME

• US 20160352493A1
• Filed: 11/10/2015
• Published: 12/01/2016
• Est. Priority Date: 01/13/2015
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: SUSITAIVAL, Riika, TAN BERGSTRM, Mattias, STATTIN, Magnus
• Granted Patent: US 9,787,456 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/1614 using bitmaps
• CPC Class Codes: H04L 2101/622 Layer-2 addresses, e.g. medium access control [MAC] addresses
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 52/365 Power headroom reporting

Abstract

According to one embodiment, a method of operating a wireless terminal may include configuring first group of component carriers, and while configured with the first group of component carriers, communicating a first MAC CE including a first bit map having a first bit map size with bits of the first bit map corresponding to respective component carriers of the first group of component carriers. The method may also include configuring a second group of component carriers wherein the first and second groups of component carriers are different. While configured with the second group of component carriers, a second MAC CE may be communicated, wherein the second MAC CE includes a second bit map having a second bit map size with bits of the second bit map corresponding to respective component carriers of the second group of component carriers. Moreover, the first and second bit map sizes may be different.

Claims

1. A method of operating a wireless terminal in communication with a wireless communication network, the method comprising:

configuring a first group of component carriers for a communication link between the wireless terminal and the communication network;

while configured with the first group of component carriers, communicating a first Medium Access Control, MAC, Control Element, CE, wherein the first MAC CE includes a first bit map having a first bit map size with bits of the first bit map corresponding to respective component carriers of the first group of component carriers;

configuring a second group of component carriers for the communication link between the wireless terminal and the communication network wherein the first group of component carriers is different than the second group of component carriers; and

while configured with the second group of component carriers, communicating a second MAC CE, wherein the second MAC CE includes a second bit map having a second bit map size with bits of the second bit map corresponding to respective component carriers of the second group of component carriers, and wherein the first bit map size of the first bit map is different than the second bit map size of the second bit map.

2-17. -17. (canceled)

18. A method of operating a node of a wireless communication network, the method comprising:

configuring a first group of component carriers for a communication link between the node of the communication network and a wireless terminal;

while configured with the first group of component carriers for the communication link, communicating a first Medium Access Control, MAC, Control Element, CE, over the communication link, wherein the first MAC CE includes a first bit map having a first bit map size with bits of the first bit map corresponding to respective component carriers of the first group of component carriers;

configuring a second group of component carriers for the communication link between the node of the communication network and the wireless terminal; and

while configured with the second group of component carriers, communicating a second MAC CE over the communication link wherein the second MAC CE includes a second bit map having a second bit map size with bits of the second bit map corresponding to respective component carriers of the second group of component carriers, and wherein the first bit map size of the first bit map is different than the second bit map size of the second bit map.

19-26. -26. (canceled)

27. A wireless terminal comprising:

a transceiver configured to provide radio communications with a wireless communication network over a radio interface; and

a processor coupled with the transceiver, wherein the processor is configured to,

configure a first group of component carriers for a communication link between the wireless terminal and the communication network;

communicate a first Medium Access Control, MAC, Control Element, CE, through the transceiver while configured with the first group of component carriers, wherein the first MAC CE includes a first bit map having a first bit map size with bits of the first bit map corresponding to respective component carriers of the first group of component carriers;

configure a second group of component carriers for the communication link between the wireless terminal and the communication network wherein the first group of component carriers is different than the second group of component carriers; and

communicate a second MAC CE through the transceiver while configured with the second group of component carriers, wherein the second MAC CE includes a second bit map having a second bit map size with bits of the second bit map corresponding to respective component carriers of the second group of component carriers, and wherein the first bit map size of the first bit map is different than the second bit map size of the second bit map.

28. The wireless terminal of claim 27 wherein communicating the first MAC CE comprises transmitting a first Extended Power Head Room, PHR, MAC CE, and wherein communicating the second MAC CE comprises transmitting a second Extended PHR MAC CE.

29. The wireless terminal of claim 28 wherein the first Extended PHR MAC CE includes power head room information for each component carrier of the first group of component carriers.

30. The wireless terminal of claim 27 wherein communicating the first MAC CE comprises receiving a first Activation/Deactivation MAC CE, and wherein communicating the second MAC CE comprises receiving a second Activation/Deactivation MAC CE.

31. The wireless terminal of claim 30 wherein the processor is further configured to,

activate/deactivate each component carrier of the first group of component carriers responsive to the first bit map and responsive to the first Activation/Deactivation MAC CE, and

activate/deactivate each component carrier of the second group of component carriers responsive to the second bit map and responsive to the second Activation/Deactivation MAC CE.

32. The wireless terminal of claim 27 wherein the first MAC CE is an Extended Power Head Room, PHR, MAC CE and the second MAC CE is an Activation/Deactivation MAC CE, or wherein the first MAC CE is an Activation/Deactivation MAC CE and the second MAC CE is an Extended PHR MAC CE.

33. The wireless terminal of claim 27 wherein a first Logical Channel Identity, LCID, is provided for the first MAC CE, a second LCID is provided for the second MAC CE, and the first and second LCIDs are different.

34. The wireless terminal of claim 33 wherein communicating the first MAC CE comprises receiving the first MAC CE and applying bits of the first bit map to respective component carriers of the first group of component carriers responsive to the first LCID, and wherein communicating the second MAC CE comprises receiving the second MAC CE and applying bits of the second bit map to respective component carriers of the second group of component carriers responsive to the second LCID.

35. The wireless terminal of any of claim 27 wherein a first Logical Channel Identity, LCID, is provided for the first MAC CE, a second LCID is provided for the second MAC CE, and the first and second LCIDs are the same.

36. The wireless terminal of claim 27 wherein the first MAC CE includes a first MAC CE version indicator, wherein the second MAC CE includes a second MAC CE version indicator, and wherein the first and second MAC CE version indicators are different.

37. The wireless terminal of claim 27 wherein communicating the first MAC CE comprises transmitting a first Power Headroom Report, PHR, MAC CE including the first bit map having the first bit map size to the wireless communication network, and wherein communicating the second MAC CE comprises transmitting a second PHR MAC CE including the second bit map having the second bit map size to the wireless communication network.

38. The wireless terminal of claim 27 wherein communicating the first MAC CE comprises interpreting/generating the first MAC CE to include the first bit map having the first bit map size responsive to the first group of component carriers configured for the communication link, and wherein communicating the second MAC CE comprises interpreting/generating the second MAC CE to include the second bit map having the second bit map size responsive to the second group of component carriers configured for the communication link.

39. The wireless terminal of claim 27 wherein the first group of component carriers includes no more than 8 component carriers, wherein the second group of component carriers includes more than 8 component carriers, and wherein the second bit map size is greater than the first bit map size.

40. The wireless terminal of claim 39 wherein the first bit map size is no more than one octet and the second bit map size is more than one octet.

41. The wireless terminal of claim 27 wherein configuring the first group of component carriers includes configuring a primary component carrier and a first group of secondary component carriers, wherein configuring the second group of component carriers includes configuring a primary component carrier and a second group of secondary component carriers, wherein the first and second groups of secondary component carriers are different, wherein each of the first group of secondary component carriers corresponds to a respective bit of the first bit map, and wherein each of the second group of secondary component carriers corresponds to a respective bit of the second bit map.

42. The wireless terminal of claim 41 wherein a respective component carrier index is associated with each secondary component carrier of the first group, wherein a respective component carrier index is associated with each secondary component carrier of the second group, wherein at least one of the component carrier indices of the secondary component carriers of the first group exceeds a threshold, wherein none of the component carrier indices of the secondary component carriers of the second group exceeds the threshold, and wherein the first bit map size of the first bit map is greater than the second bit map size of the second bit map.

43. The wireless terminal of claim 27 wherein a respective component carrier index is associated with each component carrier of the first group, wherein a respective component carrier index is associated with each component carrier of the second group, wherein at least one of the component carrier indices of the first group exceeds a threshold, wherein none of the component carrier indices of the second group exceeds the threshold, and wherein the first bit map size of the first bit map is greater than the second bit map size of the second bit map.

44-60. -60. (canceled)

61. A node of a wireless communication network, the node comprising:

a transceiver configured to provide communications with one or more wireless terminals over a radio interface; and

a processor coupled with the transceiver, wherein the processor is configured to,

configure a first group of component carriers for a communication link between the node of the communication network and a wireless terminal;

communicate a first Medium Access Control, MAC, Control Element, CE, over the communication link while configured with the first group of component carriers for the communication link, wherein the first MAC CE includes a first bit map having a first bit map size with bits of the first bit map corresponding to respective component carriers of the first group of component carriers;

configure a second group of component carriers for the communication link between the node of the communication network and the wireless terminal; and

communicate a second MAC CE over the communication link while configured with the second group of component carriers, wherein the second MAC CE includes a second bit map having a second bit map size with bits of the second bit map corresponding to respective component carriers of the second group of component carriers, and wherein the first bit map size of the first bit map is different than the second bit map size of the second bit map.

62. The node of claim 61 wherein communicating the first MAC CE comprises receiving a first Extended Power Head Room, PHR, MAC CE, and wherein communicating the second MAC CE comprises receiving a second Extended PHR MAC CE.

63. The node of claim 61 wherein communicating the first MAC CE comprises transmitting a first Activation/Deactivation MAC CE, and wherein communicating the second MAC CE comprises transmitting a second Activation/Deactivation MAC CE.

64. The node of claim 61 wherein communicating the first MAC CE comprises receiving a first Power Headroom Report, PHR, MAC CE including the first bit map having the first bit map size from the wireless terminal, and wherein communicating the second MAC CE comprises receiving a second PHR MAC CE including the second bit map having the second bit map size from the wireless terminal.

65. The node of claim 61 wherein communicating the first MAC CE comprises interpreting/generating the first MAC CE to include the first bit map having the first bit map size responsive to the first group of component carriers configured for the communication link, and wherein communicating the second MAC CE comprises interpreting/generating the second MAC CE to include the second bit map having the second bit map size responsive to the second group of component carriers configured for the communication link.

66. The node of claim 61 wherein the first group of component carriers includes no more than 8 component carriers, wherein the second group of component carriers includes more than 8 component carriers, and wherein the second bit map size is greater than the first bit map size.

67. The node of claim 61 wherein configuring the first group of component carriers includes configuring a primary component carrier and a first group of secondary component carriers, wherein configuring the second group of component carriers includes configuring a primary component carrier and a second group of secondary component carriers, wherein the first and second groups of secondary component carriers are different, wherein each of the first group of secondary component carriers corresponds to a respective bit of the first bit map, and wherein each of the second group of secondary component carriers corresponds to a respective bit of the second bit map.

68. The node of claim 67 wherein a respective component carrier index is associated with each secondary component carrier of the first group, wherein a respective component carrier index is associated with each secondary component carrier of the second group, wherein at least one of the component carrier indices of the secondary component carriers of the first group exceeds a threshold, wherein none of the component carrier indices of the secondary component carriers of the second group exceeds the threshold, and wherein the first bit map size of the first bit map is greater than the second bit map size of the second bit map.

69. The node of claim 61 wherein a respective component carrier index is associated with each component carrier of the first group, wherein a respective component carrier index is associated with each component carrier of the second group, wherein at least one of the component carrier indices of the first group exceeds a threshold, wherein none of the component carrier indices of the second group exceeds the threshold, and wherein the first bit map size of the first bit map is greater than the second bit map size of the second bit map.

70-78. -78. (canceled)