Candidate beam detection in DRX mode
Apparatus and methods are provided for candidate beam detection (CBD) in DRX mode. In one novel aspect, the CBD evaluation period uses the uniformed scaling factor and the base period for the CBD evaluation period is the same when no DRX is configured and when the DRX is configured with DRX cycle length smaller than or equals to a predefined threshold. In one embodiment, the UE receives DRX configuration including a DRX cycle length, determines a base period for an evaluation period of CBD measurements based on the DRX cycle length and determines a multiplicator for the evaluation period based on a scaling factor and one or more measurement factors, and performs CBD measurements based on the evaluation period, wherein the evaluation period is based on the determined base period and the multiplicator. In one embodiment, the scaling factor is the same for all DRX configurations.
1. A method comprising:
receiving discontinuous reception (DRX) configuration including a DRX cycle length by a user equipment (UE) in a wireless network;
determining a base period for an evaluation period of candidate beam detection (CBD) measurements based on the DRX cycle length;
determining a multiplicator for the evaluation period based on a scaling factor and one or more measurement factors; and
performing CBD measurements based on the evaluation period, wherein the evaluation period is based on the determined base period and the multiplicator.
2. The method of claim 1 , further comprising: receiving CBD configuration including a reference signal (RS) periodicity by the user equipment (UE) in the wireless network, wherein the base period is the RS periodicity when a DRX cycle length is smaller than a DRX cycle length threshold, and the base period is the DRX cycle length when the DRX cycle length is greater than the DRX cycle length threshold.
3. The method of claim 2 , wherein the RS periodicity is a synchronization signal block (SSB) periodicity for SSB based CBD or a channel state information reference signal (CSI-RS) periodicity for CSI-RS based CBD.
4. The method of claim 1 , wherein the scaling factor is the same for all DRX configurations.
5. The method of claim 1 , wherein the one or more measurement factors is a measurement factor P for frequency range-1 (FR1).
6. The method of claim 1 , wherein the one or more measurement factors are a measurement factor P and a measurement factor N for frequency range-2 (FR2).
7. The method of claim 1 , wherein the DRX cycle length threshold is predefined in a specification for the wireless network.
8. A user equipment (UE), comprising:
a transceiver that transmits and receives radio frequency (RF) signal with a base station in a new radio (NR) network;
a configuration circuit that receives discontinuous reception (DRX) configuration including a DRX cycle length;
a base period circuit that determines a base period for an evaluation period of candidate beam detection (CBD) measurements based on the DRX cycle length;
a factor circuit that determines a multiplicator for the evaluation period based on a scaling factor and one or more measurement factors; and
a measurement circuit that performs CBD measurements based on the evaluation period, wherein the evaluation period is based on the determined base period and the multiplicator.
9. The UE of claim 8 , wherein the configuration circuit further receives CBD configuration including a reference signal (RS) periodicity in the wireless network, wherein the base period is the RS periodicity when a DRX cycle length is smaller than a DRX cycle length threshold, and the base period is the DRX cycle length when the DRX cycle length is greater than the DRX cycle length threshold.
10. The UE of claim 9 , wherein the RS periodicity is a synchronization signal block (SSB) periodicity for SSB based CBD or a channel state information reference signal (CSI-RS) periodicity for CSI-RS based CBD.
11. The UE of claim 8 , wherein the scaling factor is the same for all DRX configurations.
12. The UE of claim 8 , wherein the one or more measurement factors is a measurement factor P for frequency range-1 (FR1).
13. The UE of claim 8 , wherein the one or more measurement factors are a measurement factor P and a measurement factor N for frequency range-2 (FR2).
14. The UE of claim 8 , wherein the DRX cycle length threshold is predefined in a specification for the wireless network.