Control channel configuration
A base station may transmit, to a wireless device, configuration parameters of a downlink control channel. The configuration parameters may indicate features such as a time interval in which the downlink control channel is configured, and a starting symbol, and the base station may use the downlink control channel for transmitting packet scheduling information.
1. A method comprising:
transmitting, by a base station, configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
transmitting, via the downlink control channel, packet scheduling information.
2. The method of claim 1 , further comprising transmitting, based on the packet scheduling information, at least one packet.
3. The method of claim 1 , wherein the packet scheduling information is for transmission of a packet via a downlink data channel.
4. The method of claim 1 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
5. The method of claim 1 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.
6. The method of claim 1 , wherein the configuration parameters indicate that a downlink data channel, associated with the at least one time interval of the cell, begins in time at the first-in-time symbol.
7. A method comprising:
receiving, by a wireless device, configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
receiving, via the downlink control channel, packet scheduling information.
8. The method of claim 7 , further comprising receiving, based on the packet scheduling information, at least one packet.
9. The method of claim 7 , wherein the packet scheduling information is for transmission of a packet via a downlink data channel.
10. The method of claim 7 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
11. The method of claim 7 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.
12. The method of claim 7 , wherein the configuration parameters indicate that a downlink data channel, associated with the at least one time interval of the cell, begins in time at the first-in-time symbol.
13. A base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, configure the base station to:
transmit configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
transmit, via the downlink control channel, packet scheduling information.
14. The base station of claim 13 , wherein the instructions, when executed by the one or more processors, further configure the base station to transmit, based on the packet scheduling information, at least one packet.
15. The base station of claim 13 , wherein the packet scheduling information is for transmission of a packet via a downlink data channel.
16. The base station of claim 13 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
17. The base station of claim 13 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.
18. The base station of claim 13 , wherein the configuration parameters indicate that a downlink data channel, associated with the at least one time interval of the cell, begins in time at the first-in-time symbol.
19. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, configure the wireless device to:
receive configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
receive, via the downlink control channel, packet scheduling information.
20. The wireless device of claim 19 , wherein the instructions, when executed by the one or more processors, further configure the wireless device to receive, based on the packet scheduling information, at least one packet.
21. The wireless device of claim 19 , wherein the packet scheduling information is for transmission of a packet via a downlink data channel.
22. The wireless device of claim 19 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
23. The wireless device of claim 19 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.
24. The wireless device of claim 19 , wherein the configuration parameters indicate that a downlink data channel, associated with the at least one time interval of the cell, begins in time at the first-in-time symbol.
25. One or more non-transitory, computer-readable media storing instructions that, when executed, cause:
transmitting, by a base station, configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
transmitting, via the downlink control channel, packet scheduling information.
26. The one or more non-transitory, computer-readable media of claim 25 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
27. The one or more non-transitory, computer-readable media of claim 25 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.
28. One or more non-transitory, computer-readable media storing instructions that, when executed, cause:
receiving, by a wireless device, configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
receiving, via the downlink control channel, packet scheduling information.
29. The one or more non-transitory, computer-readable media of claim 28 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
30. The one or more non-transitory, computer-readable media of claim 28 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.
31. A system comprising:
a base station and a wireless device,
wherein the base station is configured to:
transmit configuration parameters of a downlink control channel of a cell, wherein the configuration parameters indicate:
at least one time interval, of the cell, in which the downlink control channel is configured; and
a starting symbol of the downlink control channel of the cell,
wherein no signal is transmitted in a first-in-time symbol, in the at least one time interval of the cell and prior to the starting symbol of the downlink control channel; and
transmit, via the downlink control channel, packet scheduling information, and
wherein the wireless device is configured to receive the packet scheduling information.
32. The system of claim 31 , wherein the at least one time interval of the cell comprises a plurality of subframes on a carrier, and wherein in each subframe of the plurality of subframes, transmission power of each symbol, prior to a starting symbol of a corresponding downlink control channel, is zero.
33. The system of claim 31 , wherein the configuration parameters indicate that in the at least one time interval of the cell, a symbol position of the starting symbol of the downlink control channel is the same as a starting position of a downlink data channel associated with the downlink control channel.