US2020413335A1PendingUtilityA1

Method and apparatus for power saving method on pdsch (physical downlink shared channel) reception in a wireless communication system

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Assignee: ASUSTEK COMP INCPriority: Jul 27, 2018Filed: Sep 14, 2020Published: Dec 31, 2020
Est. expiryJul 27, 2038(~12 yrs left)· nominal 20-yr term from priority
Inventors:Chia-Chi LuKo-Chiang Lin
H04W 72/23H04W 52/0209H04W 72/1273H04W 72/232H04W 72/53H04W 72/0446H04L 5/0007H04W 52/0216H04L 5/0078Y02D30/70H04L 5/0094H04L 5/0044H04L 5/0053H04L 5/0096H04W 72/1289
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Claims

Abstract

A method and apparatus are disclosed from the perspective of a User Equipment (UE). In one embodiment, the method includes the UE receiving a configuration of a time domain resource allocation table for PDSCH (Physical Downlink Shared Channel). The method also includes the UE receiving an indication of a first time duration for the bandwidth part, wherein at least one entry in the time domain resource allocation table is associated with a second time duration, wherein the first time duration restricts time domain allocation of PDSCH.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for a base station, comprising:
 configuring a User Equipment (UE) with a time domain resource allocation table for Physical Downlink Shared Channel (PDSCH);   transmitting an indication of at least a first time duration, a second time duration, and a third time duration; and   informing the UE that the third time duration between a starting symbol of a PDSCH and a corresponding Downlink Control Information (DCI) is not shorter than the first time duration.   
     
     
         2 . The method of  claim 1 , further including receiving a preferred value of the first time duration from the UE. 
     
     
         3 . The method of  claim 1 , wherein the first time duration informs the UE of an earliest starting symbol of the time domain resource allocation indicated by the DCI. 
     
     
         4 . The method of  claim 1 , wherein the first time duration is determined according to time required for the UE to finish DCI reception or DCI decoding. 
     
     
         5 . The method of  claim 1 , wherein the first time duration is determined according to time required for the UE to adjust reception bandwidth. 
     
     
         6 . The method of  claim 1 , wherein the first time duration is determined according to time required for the UE to be ready for reception of PDSCH. 
     
     
         7 . The method of  claim 1 , wherein the first time duration is determined according to time required for the UE to prepare PDSCH reception. 
     
     
         8 . The method of  claim 1 , wherein the first time duration is for a bandwidth part. 
     
     
         9 . The method of  claim 1 , further including prohibiting from scheduling the UE with at least one entry associated with the second time duration. 
     
     
         10 . The method of  claim 1 , wherein the base station transmits a signal to the UE to disable or enable restriction of the time domain resource allocation, and the base station schedules the UE with the at least one entry if the restriction is disabled. 
     
     
         11 . The method of  claim 10 , wherein the signal is a Radio Resource Control (RRC) signal. 
     
     
         12 . The method of  claim 1 , wherein the indication is for power saving. 
     
     
         13 . A method for a User Equipment (UE), comprising:
 receiving a configuration of a time domain resource allocation table for Physical Downlink Shared Channel (PDSCH);   receiving an indication of at least a first time duration, a second time duration, and a third time duration, wherein the third time duration between a starting symbol of a PDSCH and a corresponding Downlink Control Information (DCI) is not shorter than the first time duration; and   determining an earliest starting symbol of a time domain resource allocation indicated by Downlink Control Information (DCI) based on the first time duration, wherein at least one entry associated with the second time duration allocates PDSCH starts before the earliest starting symbol.   
     
     
         14 . The method of  claim 13 , further including reporting a preferred value of the first time duration to a base station. 
     
     
         15 . The method of  claim 13 , further including determining whether to receive or buffer potential PDSCH based on the first time duration. 
     
     
         16 . The method of  claim 13 , wherein the first time duration is determined according to time required for the UE to finish DCI reception or DCI decoding. 
     
     
         17 . The method of  claim 13 , wherein the first time duration is determined according to time required for the UE to prepare PDSCH reception. 
     
     
         18 . The method of  claim 13 , wherein the first time duration is determined according to time required for the UE to adjust its reception bandwidth. 
     
     
         19 . The method of  claim 13 , wherein the first time duration is for a bandwidth part. 
     
     
         20 . The method of  claim 13 , wherein the UE receives or buffers potential PDSCH if the first time duration is shorter than a time required for the UE to finish DCI reception or DCI decoding. 
     
     
         21 . The method of  claim 13 , wherein the UE does not receive or buffer potential PDSCH if the first time duration is not shorter than time required for the UE to finish DCI reception or DCI decoding. 
     
     
         22 . The method of  claim 13 , wherein the UE receives a signal from a base station to disable or enable restriction of the time domain resource allocation, and the UE receives a scheduling with the at least one entry if restriction is disabled. 
     
     
         23 . The method of  claim 13 , wherein the indication is for power saving.

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