Enhancement for paging indication and radio resource management (rrm) measurements for ue power saving in a wireless network

Abstract

A User Equipment (UE) de-multiplexes a paging indication, which precedes a Synchronization Signal Block (SSB) in time and is generated using the same sequence generation formula as that for generating a Secondary Synchronization Signal (SSS) in the SSB. From the de-multiplexed paging indication, the UE detects that it is paged for message reception and wakes up to receive the message in a next data reception period of the UE's DRX cycle.

What is claimed is: 
     
         1 . A method performed by a user equipment (UE) in a wireless network, comprising:
 de-multiplexing a paging indication broadcast from a base station to a primary cell of the UE, wherein the paging indication precedes a Synchronization Signal Block (SSB) in time and is generated using a same sequence generation formula as that for generating a Secondary Synchronization Signal (SSS) in the SSB;   detecting from the de-multiplexed paging indication that the UE is paged for reception of a message; and   in response to the detecting, waking up from a sleep state to receive the message from the base station in a next data reception period of a Discontinuous Reception (DRX) cycle of the UE.   
     
     
         2 . The method of  claim 1 , wherein the paging indication is multiplexed by code-division multiplexing a plurality of SSS blocks, each SSS block coded with a paging group identifier. 
     
     
         3 . The method of  claim 2 , wherein de-multiplexing the paging indication further comprises:
 multiplying the paging group identifier of the UE with the paging indication preceding the SSB.   
     
     
         4 . The method of  claim 1 , wherein the paging indication is multiplexed by frequency-division multiplexing a plurality of SSS blocks, each SSS block transmitted in a frequency location that identifies a paging group. 
     
     
         5 . The method of  claim 1 , wherein the paging indication is multiplexed by time-division multiplexing a plurality of SSS blocks, each SSS block transmitted in a time location that identifies a paging group. 
     
     
         6 . The method of  claim 1 , wherein the paging indication is broadcast by the base station at a fixed time interval larger than a time interval for SSB burst transmission. 
     
     
         7 . The method of  claim 1 , wherein the paging indication is broadcast by the base station at a fixed time interval equal to a time interval for SSB burst transmission. 
     
     
         8 . The method of  claim 1 , further comprising:
 detecting from the de-multiplexed paging indication that the UE is not paged for message reception;   staying in a sleep state throughout the next data reception period of the Discontinuous Reception (DRX) cycle; and   using the de-multiplexed paging indication for tuning reception of the SSB.   
     
     
         9 . The method of  claim 1 , wherein the paging indication occupies one symbol time preceding a corresponding SSB. 
     
     
         10 . The method of  claim 1 , wherein the wireless network is a Fifth Generation New Radio (5G NR) network.