Support of wideband physical resource group (prg) in long term evolution (lte)

Abstract

In an aspect, a method of wireless communication includes receiving, by a user equipment (UE), downlink control information (DCI) having a resource allocation of allocated physical resource blocks (PRBs). The method additionally includes employing at least one of a) a wideband decoder, b) a wideband channel estimator, c) a bandwidth-specific decoder, or d) a bandwidth-specific channel estimator for wireless communications based at least on a feature of the resource allocation in the DCI. In other aspects a UE transmits, to a base station, an indication of UE capabilities regarding support of wideband physical resource group (PRG) for various transmission time interval (TTI) durations.

What is claimed is: 
     
         1 . A method of wireless communication, the method comprising:
 transmitting, by a user equipment (UE) to a base station, an indication of UE capabilities regarding at least one of:   whether the UE can support wideband physical resource groups (PRGs) in transmission time intervals (TTIs) having durations of one millisecond (1 ms) or more;   whether the UE can support wideband PRGs in short TTIs having durations of less than 1 ms; or   whether the UE can support simultaneous wideband PRGs in TTIs having durations of 1 ms or more and wideband PRGs in short TTIs having durations of less than 1 ms; and   receiving a configuration, by the UE from the base station, to perform wireless communications in wideband mode for a given TTI.   
     
     
         2 . The method of  claim 1 , wherein the transmitting includes transmitting an indication that the UE can support wideband PRGs in TTIs having durations of 1 ms or more and wideband PRGs in short TTIs having durations of less than 1 ms, but not both simultaneously. 
     
     
         3 . A method of wireless communication, the method comprising:
 receiving, by a base station from a user equipment (UE), an indication of UE capabilities regarding at least one of:   whether the UE can support wideband physical resource groups (PRGs) in transmission time intervals (TTIs) having durations of one millisecond (1 ms) or more;   whether the UE can support wideband PRGs in short TTIs having durations of less than 1 ms; or   whether the UE can support simultaneous wideband PRGs in TTIs having durations of 1 ms or more and wideband PRGs in short TTIs having durations of less than 1 ms; and   configuring the UE, by the base station, to perform wireless communications in wideband mode for a given TTI based at least on the indication of UE capabilities.   
     
     
         4 . The method of  claim 3 , wherein the receiving includes receiving an indication that the UE can support wideband PRGs in TTIs having durations of 1 ms or more and wideband PRGs in short TTIs having durations of less than 1 ms, but not both simultaneously.