Control channel configuration
A wireless device may receive at least one radio resource control (RRC) message comprising a field indicating a starting symbol for a physical downlink channel. The wireless device may receive a signal. The physical downlink channel may start from the starting symbol plus an offset value.
1. A method comprising:
receiving, by a wireless device, at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating one possible starting position, for transmission in a time duration, is one slot; and
receiving, via the physical downlink channel, a signal, wherein the physical downlink channel starts from a symbol that is based on the starting symbol and the second parameter.
2. The method of claim 1 , wherein the time duration is a subframe.
3. The method of claim 1 , wherein the time duration comprises at least two slots.
4. The method of claim 1 , wherein a value of the second parameter is seven.
5. The method of claim 1 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
6. The method of claim 1 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
7. The method of claim 1 , wherein the second parameter is for a partial subframe.
8. The method of claim 1 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
9. The method of claim 1 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
10. The method of claim 1 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
11. The method of claim 1 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).
12. A method comprising:
transmitting, by a base station, at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating one possible starting position, for transmission in a time duration, is one slot; and
transmitting, via the physical downlink channel, a signal, wherein the physical downlink channel starts from a symbol that is based on the starting symbol and the second parameter.
13. The method of claim 12 , wherein the time duration is a subframe.
14. The method of claim 12 , wherein the time duration comprises at least two slots.
15. The method of claim 12 , wherein a value of the second parameter is seven.
16. The method of claim 12 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
17. The method of claim 12 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
18. The method of claim 12 , wherein the second parameter is for a partial subframe.
19. The method of claim 12 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
20. The method of claim 12 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
21. The method of claim 12 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
22. The method of claim 12 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).
23. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating one possible starting position, for transmission in a time duration, is one slot; and
receive, via the physical downlink channel, a signal, wherein the starts from a symbol that is based on the starting symbol and the second parameter.
24. The wireless device of claim 23 , wherein the time duration is a subframe.
25. The wireless device of claim 23 , wherein the time duration comprises at least two slots.
26. The wireless device of claim 23 , wherein a value of the second parameter is seven.
27. The wireless device of claim 23 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
28. The wireless device of claim 23 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
29. The wireless device of claim 23 , wherein the second parameter is for a partial subframe.
30. The wireless device of claim 23 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
31. The wireless device of claim 23 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
32. The wireless device of claim 23 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
33. The wireless device of claim 23 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).
34. A base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station to:
transmit at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating that one possible starting position, for transmission in a time duration, is one slot; and
transmit, via the physical downlink channel, a signal, wherein the physical downlink channel starts from a symbol that is based on the starting symbol and the second parameter.
35. The base station of claim 34 , wherein the time duration is a subframe.
36. The base station of claim 34 , where the time duration comprises at least two slots.
37. The base station of claim 34 , wherein a value of the second parameter is seven.
38. The base station of claim 34 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
39. The base station of claim 34 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
40. The base station of claim 34 , wherein the second parameter is for a partial subframe.
41. The base station of claim 34 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
42. The base station of claim 34 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
43. The base station of claim 34 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
44. The base station of claim 34 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).
45. A system comprising:
a wireless device; and
a base station;
wherein the base station is configured to transmit at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating one possible starting position, for transmission in a time duration, is one slot; and
wherein the wireless device is configured to receive, via the physical downlink channel, a signal, wherein the physical downlink channel starts from a symbol that is based on the starting symbol and the second parameter.
46. The system of claim 45 , wherein the time duration is a subframe.
47. The system of claim 45 , wherein the time duration comprises at least two slots.
48. The system of claim 45 , wherein a value of the second parameter is seven.
49. The system of claim 45 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
50. The system of claim 45 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
51. The system of claim 45 , wherein the second parameter is for a partial subframe.
52. The system of claim 45 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
53. The system of claim 45 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
54. The system of claim 45 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
55. The system of claim 45 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).
56. A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:
receive at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating one possible starting position, for transmission in a time duration, is one slot; and
receive, via the physical downlink channel, a signal, wherein the physical downlink channel starts from a symbol that is based on the starting symbol and the second parameter.
57. The non-transitory computer-readable medium of claim 56 , wherein the time duration is a subframe.
58. The non-transitory computer-readable medium of claim 56 , wherein the time duration comprises at least two slots.
59. The non-transitory computer-readable medium of claim 56 , wherein a value of the second parameter is seven.
60. The non-transitory computer-readable medium of claim 56 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
61. The non-transitory computer-readable medium of claim 56 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
62. The non-transitory computer-readable medium of claim 56 , wherein the second parameter is for a partial subframe.
63. The non-transitory computer-readable medium of claim 56 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
64. The non-transitory computer-readable medium of claim 56 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
65. The non-transitory computer-readable medium of claim 56 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
66. The non-transitory computer-readable medium of claim 56 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).
67. A non-transitory computer-readable medium storing instructions that, when executed, configure a base station to:
transmit at least one radio resource control (RRC) message comprising:
a first parameter indicating a starting symbol for a physical downlink channel; and
a second parameter indicating one possible starting position, for transmission in a time duration, is one slot; and
transmit, via the physical downlink channel, a signal, wherein the physical downlink channel starts from a symbol that is based on the starting symbol and the second parameter.
68. The non-transitory computer-readable medium of claim 67 , wherein the time duration is a subframe.
69. The non-transitory computer-readable medium of claim 67 , wherein the time duration comprises at least two slots.
70. The non-transitory computer-readable medium of claim 67 , wherein a value of the second parameter is seven.
71. The non-transitory computer-readable medium of claim 67 , wherein the second parameter further indicates that the one possible starting position is seven symbols into the time duration.
72. The non-transitory computer-readable medium of claim 67 , wherein the at least one RRC message further comprises one or more configuration parameters of a licensed assisted access (LAA) cell.
73. The non-transitory computer-readable medium of claim 67 , wherein the second parameter is for a partial subframe.
74. The non-transitory computer-readable medium of claim 67 , wherein the second parameter is a starting symbol value of at least one of:
a partial subframe; or
a slot boundary.
75. The non-transitory computer-readable medium of claim 67 , wherein the symbol is equal to the starting symbol plus a non-zero offset symbol value that is based on the second parameter.
76. The non-transitory computer-readable medium of claim 67 , wherein the physical downlink channel is an enhanced physical downlink control channel (ePDCCH).
77. The non-transitory computer-readable medium of claim 67 , wherein the physical downlink channel is a physical downlink shared channel (PDSCH).