Multiple Active Bandwidth Parts
Bandwidth parts (BWPs) and other resources for wireless communications are described. A wireless device may use a BWP control procedure and/or a BWP timer management procedure for activating, deactivating, and/or switching BWPs, for example, using multiple active BWPs. A base station may send information comprising one or more fields indicating an action associated with a BWP, for example, if multiple active BWPs are supported. A wireless device may control a first BWP inactivity timer associated with a first active BWP, for example, based on activating, deactivating, and/or switching a second BWP.
1 . A method comprising:
activating, by a wireless device, a first bandwidth part (BWP) of a cell and a sidelink BWP of the cell, wherein the sidelink BWP is configured to have a same numerology as the first BWP; and
based on switching the first BWP to a second BWP and based on the sidelink BWP being active, deactivating the sidelink BWP.
2 . The method of claim 1 , further comprising:
receiving one or more radio resource control (RRC) messages comprising at least one of:
an indication of the first BWP; and
an indication of the sidelink BWP.
3 . The method of claim 1 , further comprising:
receiving at least one radio resource control (RRC) message indicating the second BWP.
4 . The method of claim 1 , wherein the switching is based on a period of inactivity of the first BWP.
5 . The method of claim 1 , further comprising:
monitoring a downlink control channel on the first BWP for downlink control information (DCI), wherein the switching from the first BWP to the second BWP is based on a determination that the DCI is not received during the monitoring.
6 . The method of claim 1 , wherein the switching from the first BWP to the second BWP comprises:
deactivating the first BWP; and
activating the second BWP as the active BWP.
7 . The method of claim 1 , wherein the second BWP comprises a default BWP.
8 . The method of claim 1 , wherein the activating the first BWP and the sidelink BWP comprises:
activating the first BWP during a first time interval; and
activating the sidelink BWP during a second time interval.
9 . The method of claim 1 , further comprising sending or receiving at least one message via the second BWP.
10 . The method of claim 1 , wherein the deactivating the sidelink BWP is further based on a numerology of the second BWP being different from the numerology of the sidelink BWP.
11 . 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:
activate a first bandwidth part (BWP) of a cell and a sidelink BWP of the cell, wherein the sidelink BWP is configured to have a same numerology as the first BWP; and
based on switching the first BWP to a second BWP and based on the sidelink BWP being active, deactivate the sidelink BWP.
12 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:
receive one or more radio resource control (RRC) messages comprising at least one of:
an indication of the first BWP; and
an indication of the sidelink BWP.
13 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:
receive at least one radio resource control (RRC) message indicating the second BWP.
14 . The wireless device of claim 11 , wherein the switching is based on a period of inactivity of the first BWP.
15 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:
monitor a downlink control channel on the first BWP for downlink control information (DCI), wherein the switching from the first BWP to the second BWP is based on a determination that the DCI is not received during the monitoring.
16 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to switch from the first BWP to the second BWP by:
deactivating the first BWP; and
activating the second BWP as the active BWP.
17 . The wireless device of claim 11 , wherein the second BWP comprises a default BWP.
18 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to activate the first BWP and the sidelink BWP by:
activating the first BWP during a first time interval; and
activating the sidelink BWP during a second time interval.
19 . The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, cause the wireless device to send or receive at least one message via the second BWP.
20 . The wireless device of claim 11 , wherein the deactivating the sidelink BWP is further based on a numerology of the second BWP being different from the numerology of the sidelink BWP.
21 . A non-transitory computer-readable medium comprising instructions that, when executed, configure a wireless device to:
activate a first bandwidth part (BWP) of a cell and a sidelink BWP of the cell, wherein the sidelink BWP is configured to have a same numerology as the first BWP; and
based on switching the first BWP to a second BWP and based on the sidelink BWP being active, deactivate the sidelink BWP.
22 . The non-transitory computer-readable medium of claim 21 , wherein the instructions, when executed, configure the wireless device to:
receive one or more radio resource control (RRC) messages comprising at least one of:
an indication of the first BWP; and
an indication of the sidelink BWP.
23 . The non-transitory computer-readable medium of claim 21 , wherein the instructions, when executed, configure the wireless device to:
receive at least one radio resource control (RRC) message indicating the second BWP.
24 . The non-transitory computer-readable medium of claim 21 , wherein the switching is based on a period of inactivity of the first BWP.
25 . The non-transitory computer-readable medium of claim 21 , wherein the instructions, when executed, configure the wireless device to:
monitor a downlink control channel on the first BWP for downlink control information (DCI), wherein the switching from the first BWP to the second BWP is based on a determination that the DCI is not received during the monitoring.
26 . The non-transitory computer-readable medium of claim 21 , wherein the instructions, when executed, configure the wireless device to switch from the first BWP to the second BWP by:
deactivating the first BWP; and
activating the second BWP as the active BWP.
27 . The non-transitory computer-readable medium of claim 21 , wherein the second BWP comprises a default BWP.
28 . The non-transitory computer-readable medium of claim 21 , wherein the instructions, when executed, configure the wireless device to activate the first BWP and the sidelink BWP by:
activating the first BWP during a first time interval; and
activating the sidelink BWP during a second time interval.
29 . The non-transitory computer-readable medium of claim 21 , wherein the instructions, when executed, configure the wireless device to send or receive at least one message via the second BWP.
30 . The non-transitory computer-readable medium of claim 21 , wherein the deactivating the sidelink BWP is further based on a numerology of the second BWP being different from the numerology of the sidelink BWP.