IP Library › Granted Patent US 12690011

Granted Patent B2

US 12690011 · App. 17/852,010 · Granted Jul 21, 2026

Decoding paging messages based on multiple beams

Inventors: Hongbo Yan (Vista, CA); Amir Farajidana (Sunnyvale, CA); Dietmar Gradl (Ebersberg, DE)

Assignee: Apple Inc.

H04W68/005 H04W24/08 H04W56/001 H04W68/02 H04W72/1273 H04W76/28

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Quick Facts

Patent No.: US 12690011
App. No.: 17/852,010
Granted: Jul 21, 2026
Kind: B2

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Abstract

The present application relates to a paging mechanism. In an example, a network can transmit SSBs periodically on multiple SSB beams. A UE can receive, during a DRX cycle, an SSB per detected SSB beam and perform SSB-based measurements. Based on these measurements, the UE can perform PDCCH monitoring and PDSCH decoding on at least two beams. The PDCCH monitoring can indicate a scheduled paging message from the network. The PDSCH decoding can allow the UE to determine the paging message.

Claims (65)

1 . A method comprising:

processing, during an active state of a discontinuous reception (DRX) cycle, a plurality of synchronization signal blocks (SSBs) that respectively correspond to a plurality of beams of a base station;

determining a plurality of measurements that respectively correspond to the plurality of SSBs;

selecting a first measurement from the plurality of measurements;

comparing the first measurement of the plurality of measurements to a measurement threshold;

scheduling, based on said comparing, page monitoring and page receiving on at least two beams of the plurality of beams;

performing a first physical downlink shared channel (PDSCH) decoding of a first instance of a paging message on a first beam of the at least two beams; and

performing, by using information from the first PDSCH decoding, a second PDSCH decoding of a second instance of the paging message on a second beam of the at least two beams.

2 . The method of claim 1 , wherein the first measurement includes a signal-to-noise ratio (SNR) measurement or a reference signal received power (RSRP) measurement determined based on a first SSB of the plurality of SSBs that corresponds to the first beam of the at least two beams, wherein the page monitoring includes a physical downlink control channel (PDCCH) monitoring of a paging occasion on the first beam.

3 . The method of claim 1 , further comprising:

selecting the first measurement based on a determination the first measurement is a largest measurement of the plurality of measurements.

4 . The method of claim 1 , further comprising:

determining that a successful decoding of the paging message; and

stopping at least one of the page monitoring or the page receiving on another beam of the at least two beams.

5 . The method of claim 1 , wherein the measurement threshold is a first measurement threshold, and wherein the method further comprises:

selecting the at least two beams by determining that individual measurements corresponding to the at least two beams are between a second measurement threshold and the first measurement threshold, wherein the second measurement threshold is smaller than the first measurement threshold.

6 . The method of claim 1 , further comprising:

sorting the plurality of beams based on the plurality of measurements; and

selecting the highest sorted beam and the next highest sorted beam, wherein the page monitoring and the page receiving are scheduled on only the highest sorted beam and the next highest sorted beam.

7 . The method of claim 1

wherein the first PDSCH decoding is performed based on first soft decoding information,

wherein the second PDSCH decoding is performed based on second soft decoding information, and wherein the second soft decoding information is based on the first soft decoding information.

8 . The method of claim 7 , wherein the first soft decoding information and the second soft decoding information include first log-likelihood ratio (LLR) information and second LLR information, respectively, and wherein the second PDSCH decoding is performed using a combination of the first LLR information and the second LLR information.

9 . The method of claim 7 , further comprising:

determining a decoding failure of the first instance of the paging message, wherein the second PDSCH decoding is performed based on the decoding failure.

10 . The method of claim 1 , further comprising:

determining whether a decoding failure or a decoding success of the first instance of the paging message occurred; and

performing the second PDSCH decoding based on determining the decoding failure.

11 . The method of claim 10 , wherein the decoding failure or the decoding success is determined based on a cyclic redundancy check (CRC) of the first instance of the paging message.

12 . The method of claim 11 , wherein the second PDSCH decoding is performed based on a combination of a first log-likelihood ratio (LLR) information of the first PDSCH decoding and a second LLR information of the second PDSCH decoding.

13 . An apparatus comprising:

processing circuitry configured to:

process during an active state of a discontinuous reception (DRX) cycle, a plurality of synchronization signal blocks (SSBs) that respectively correspond to a plurality of beams of a base station;

determine a plurality of measurements that respectively correspond to the plurality of SSBs;

select a first measurement from the plurality of measurements;

compare the first measurement of the plurality of measurements to a measurement threshold;

schedule, based on said comparing, page monitoring and page receiving on at least two beams of the plurality of beams;

perform a first physical downlink shared channel (PDSCH) decoding of a first instance of a paging message on a first beam of the at least two beams; and

perform, by using information from the first PDSCH decoding, a second PDSCH decoding of a second instance of the paging message on a second beam of the at least two beams.

14 . The apparatus of claim 13 , wherein the

the first PDSCH decoding is performed based on first soft decoding information

and wherein the second PDSCH decoding is performed based on the first soft decoding information and second soft decoding information.

15 . The apparatus of claim 13 , wherein the processing circuitry is further configured to:

determine that the first beam of the at least two beams is associated with the first measurement that is larger than that of the second beam of the at least two beams;

perform a first physical downlink control channel (PDCCH) monitoring on the first beam to decode first downlink control information (DCI) that indicates a first schedule of the first PDSCH decoding; and

perform a second PDCCH monitoring on the second beam to decode second DCI that indicates a second schedule of the second PDSCH decoding.

16 . The apparatus of claim 13 , wherein the processing circuitry is further configured to:

determine that the first beam of the at least two beams is associated with the first measurement that is larger than that of the second beam of the at least two beams;

perform a first physical downlink control channel (PDCCH) monitoring on the first beam to decode first downlink control information (DCI) that indicates a first schedule of the first PDSCH decoding;

determine a decoding failure of the first instance of the paging message; and

perform, based on the decoding failure, a second PDCCH monitoring on the second beam subsequent to the first PDSCH decoding to decode second DCI that indicates a second schedule of the second PDSCH decoding.

17 . The apparatus of claim 13 , wherein the processing circuitry is further configured to:

determine that the first beam of the at least two beams is associated with the first measurement that is larger than that of a second beam of the at least two beams;

determine a decoding failure of the first instance of the paging message; and

perform, based on the decoding failure, the second PDSCH decoding on the second beam subsequent to the first PDSCH decoding.

18 . The apparatus of claim 17 , wherein the second instance of the paging message is decoded based on combining first soft decoding information used for the first PDSCH decoding and second soft decoding information used for the second PDSCH decoding.

19 . One or more non-transitory computer-readable media storing instructions that, upon execution on a user equipment (UE), configure the UE to perform operations comprising:

receiving, during an active state of a discontinuous reception (DRX) cycle, a plurality of synchronization signal blocks (SSBs) that respectively correspond to a plurality of beams of a base station;