Bandwidth part switching and PHY configuration alignment
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsAntonino Orsino, Osman Nuri Can Yilmaz
Life of this patent
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Abstract
According to an aspect, a wireless device is configured to selectively operate in one of two or more previously configured bandwidth parts, BWPs, each BWP being a different subset of an available bandwidth for uplink and/or downlink operation. The wireless device receives (802) an indication to switch from use of a first BWP to a second BWP, and after switching to use of the second BWP, applies (804) a predetermined default configuration, corresponding to the second BWP, to one or more physical layer parameters and/or procedures.
Claims26
A wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the wireless device comprising:
- transceiver circuitry configured for communicating with a network node of a wireless communication network;
- and
- processing circuitry operatively associated with the transceiver circuitry and configured to:
- receive an indication to switch from use of a first BWP to a second BWP;
- and
- after switching to use of the second BWP, apply a predetermined default configuration, corresponding to the second BWP, to one or more physical layer parameters and/or procedures.
A wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the wireless device comprising:
- transceiver circuitry configured for communicating with a network node of a wireless communication network;
- and
- processing circuitry operatively associated with the transceiver circuitry and configured to:
- receive an indication to switch from use of a first BWP to a second BWP;
- determine whether physical layer parameters and/or procedures for the second BWP have previously been configured by medium access control (MAC) control elements (CEs) during prior use of the second BWP;
- and
- apply the previously configured physical layer parameters and/or procedures for the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have previously been configured by MAC CEs during prior use of the second BWP.
A wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the wireless device comprising:
- transceiver circuitry configured for communicating with a network node of a wireless communication network;
- and
- processing circuitry operatively associated with the transceiver circuitry and configured to:
- receive an indication to switch from use of a first BWP to a second BWP;
- and
- upon switching to use of the second BWP, stop operation of one or more physical layer procedures until receipt of a command activating and/or configuring the stopped one or more physical layer procedures for the second BWP.
A wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the wireless device comprising:
- transceiver circuitry configured for communicating with a network node of a wireless communication network;
- and
- processing circuitry operatively associated with the transceiver circuitry and configured to:
- receive an indication to switch from use of a first BWP to a second BWP;
- upon switching to use of the second BWP, stop operation of one or more physical layer procedures and waiting a predetermined time for receipt of a command activating and/or configuring the stopped one or more physical layer procedures for the second BWP;
- and
- upon failing to receive a command activating and/or configuring the stopped one or more physical layer procedures for the second BWP, within the predetermined time, switch to use of a default BWP of the two or more previously configured BWPs and apply a predetermined default configuration, corresponding to the default BWP, to one or more physical layer parameters and/or procedures.
A method, in a wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the method comprising:
- receiving an indication to switch from use of a first BWP to a second BWP;
- and
- after switching to use of the second BWP, applying a predetermined default configuration, corresponding to the second BWP, to one or more physical layer parameters and/or procedures.
A method, in a wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the method comprising:
- receiving an indication to switch from use of a first BWP to a second BWP;
- determining whether physical layer parameters and/or procedures for the second BWP have previously been configured by medium access control (MAC) control elements (CEs) during prior use of the second BWP;
- and
- applying the previously configured physical layer parameters and/or procedures for the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have previously been configured by MAC CEs during prior use of the second BWP.
A method, in a wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the method comprising:
- receiving an indication to switch from use of a first BWP to a second BWP;
- and
- upon switching to use of the second BWP, stopping operation of one or more physical layer procedures until receipt of a command activating and/or configuring the stopped one or more physical layer procedures for the second BWP.
A method, in a wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the method comprising:
- receiving an indication to switch from use of a first BWP to a second BWP;
- and
- upon switching to use of the second BWP, stopping operation of one or more physical layer procedures and waiting a predetermined time for receipt of a command activating and/or configuring the stopped one or more physical layer procedures for the second BWP;
- and
- upon failing to receive a command activating and/or configuring the stopped one or more physical layer procedures for the second BWP, within the predetermined time, switching to use of a default BWP of the two or more previously configured BWPs and applying a predetermined default configuration, corresponding to the default BWP, to one or more physical layer parameters and/or procedures.
A network node configured to serve a wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the network node comprising:
- transceiver circuitry configured for communicating with the wireless device;
- and
- processing circuitry operatively associated with the transceiver circuitry and configured to:
- send, to the wireless device, an indication to switch from use of a first BWP to a second BWP;
- count a number of physical layer reports expected from the wireless device during use of the second BWP but not received;
- and
- responsive to the number reaching a predetermined limit, send one or more medium access control (MAC) control elements (CEs) to configure physical layer reporting for the second BWP.
A method, in a network node serving a wireless device configured to selectively operate in one of two or more previously configured bandwidth parts (BWPs), each BWP being a different subset of an available bandwidth for uplink and/or downlink operation, the method comprising:
- sending, to the wireless device, an indication to switch from use of a first BWP to a second BWP;
- counting a number of physical layer reports expected from the wireless device during use of the second BWP but not received;
- and
- responsive to the number reaching a predetermined limit, sending one or more medium access control (MAC) control elements (CEs) to configure physical layer reporting for the second BWP.
Dependencies are inferred from the claim text.