Capability signaling for dynamic spectrum sharing
A wireless device may transmit capability IE(s) indicating that the wireless device supports reception of a downlink control channel, of a second radio access technology, in resource element(s) associated with a reference signal of a first radio access technology. The wireless device may receive, in response to transmitting the capability IE(s), the downlink control channel in the resource element(s).
1 . A method comprising:
transmitting, by a wireless device, a capability message comprising at least one capability information element indicating that the wireless device supports reception of a downlink control channel, of a second radio access technology, in one or more resource elements associated with a reference signal of a first radio access technology; and
receiving, in response to transmitting the capability message, the downlink control channel in the one or more resource elements associated with the reference signal.
2 . The method of claim 1 , wherein the second radio access technology is New Radio (NR).
3 . The method of claim 1 , wherein the first radio access technology is Long Term Evolution (LTE).
4 . The method of claim 1 , wherein the first reference signal is a cell specific reference signal (CRS).
5 . The method of claim 1 , further comprising determining downlink control information in response to receiving the downlink control channel.
6 . The method of claim 5 , wherein the downlink control information comprises scheduling information for an uplink transmission or a downlink transmission.
7 . The method of claim 1 , wherein at least one resource element of the one or more resource elements is associated with a second reference signal of the second radio access technology.
8 . 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:
transmit a capability message comprising at least one capability information element indicating that the wireless device supports reception of a downlink control channel, of a second radio access technology, in one or more resource elements associated with a reference signal of a first radio access technology; and
receive, in response to transmitting the capability message, the downlink control channel in the one or more resource elements associated with the reference signal.
9 . The wireless device of claim 8 , wherein the second radio access technology is New Radio (NR).
10 . The wireless device of claim 8 , wherein the first radio access technology is Long Term Evolution (LTE).
11 . The wireless device of claim 8 , wherein the first reference signal is a cell specific reference signal (CRS).
12 . The wireless device of claim 8 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to determine downlink control information, comprising scheduling information for an uplink transmission or a downlink transmission, in response to receiving the downlink control channel.
13 . The wireless device of claim 8 , wherein at least one resource element of the one or more resource elements is associated with a second reference signal of the second radio access technology.
14 . A system comprising:
a base station; and
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: transmit, to the base station, a capability message comprising at least one capability information element indicating that the wireless device supports reception of a downlink control channel, of a second radio access technology, in one or more resource elements associated with a reference signal of a first radio access technology;
and receive, in response to transmitting the capability message, the downlink control channel in the one or more resource elements associated with the reference signal.
15 . The system of claim 14 , wherein the second radio access technology is New Radio (NR).
16 . The system of claim 15 , wherein the first radio access technology is Long Term Evolution (LTE).
17 . The system of claim 15 , wherein the first reference signal is a cell specific reference signal (CRS).
18 . The system of claim 15 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to determine downlink control information in response to receiving the downlink control channel.
19 . The system of claim 18 , wherein the downlink control information comprises scheduling information for an uplink transmission or a downlink transmission.
20 . The system of claim 15 , wherein at least one resource element of the one or more resource elements is associated with a second reference signal of the second radio access technology.