Methods and devices for control of bandwidth part switching

A User Equipment (UE) configured with Semi-Persistent Scheduling (SPS) in downlink for control of Bandwidth Part (BWP) switching, the UE comprising:

• a processor;
• and
• a memory, the memory comprising instructions which, when executed by the processor, cause the UE to perform operations to:
• determine that the UE has a downlink assignment that is active in a non-default downlink BWP;
• refrain from switching from the non-default downlink BWP to a default downlink BWP while the downlink assignment is active in the non-default downlink BWP, wherein to refrain comprises restart of a BWP inactivity timer, in response to the UE receiving each time a Physical Downlink Shared Channel (PDSCH) transmission in the non-default downlink BWP, with a timer value that can cause the BWP inactivity timer not to expire to retain the non-default downlink BWP active, before a life duration of the downlink assignment ends, and wherein the BWP inactivity timer is for control of switching from the non-default downlink BWP to the default downlink BWP;
• and
• switch to the default downlink BWP from the non-default downlink BWP with expiration of the BWP inactivity timer.

A method in a network device for control of Bandwidth Part (BWP) switching, comprising:

• determining that there is a downlink assignment that is active in a non-default downlink BWP for a User Equipment (UE) configured with Semi-Persistent Scheduling (SPS);
• refraining from switching a connection with the UE from the non-default downlink BWP to a default downlink BWP while the downlink assignment is active in the non-default downlink BWP, wherein the refraining comprises restarting a BWP inactivity timer, in response to the UE having received each time a Physical Downlink Shared Channel (PDSCH) transmission in the non-default downlink BWP, with a timer value that can cause the BWP inactivity timer not to expire to retain the non-default downlink BWP active, before a life duration of the downlink assignment ends, and wherein the BWP inactivity timer is for control of switching from the non-default downlink BWP to the default downlink BWP;
• and
• switching to the default downlink BWP from the non-default downlink BWP with expiration of the BWP inactivity timer.

A network device for control of Bandwidth Part (BWP) switching, the network device comprising:

• a processor;
• and
• a memory, the memory comprising instructions which, when executed by the processor cause the network device to perform operations to:
• determine that there is a downlink assignment that is active in a non-default downlink BWP for a User Equipment (UE) configured with Semi-Persistent Scheduling (SPS);
• refrain from switching a connection with the UE from the non-default downlink BWP to a default downlink BWP while the downlink assignment is active in the non-default downlink BWP, wherein to refrain comprises restart of a BWP inactivity timer, in response to the UE having received each time a Physical Downlink Shared Channel (PDSCH) transmission in the non-default downlink BWP, with a time value that can cause the BWP inactivity timer not to expire to retain the non-default downlink BWP active, before a life duration of the downlink assignment ends, and wherein the BWP inactivity timer is for control of switching from the non-default downlink BWP to the default downlink BWP;
• and
• switch to the default downlink BWP from the non-default downlink BWP with expiration of the BWP inactivity timer.