Measurement Method in Carrier Aggregation and Asynchronous Dual Connectivity

Abstract

An apparatus of a base station, comprising: a controller to configure a first measurement gap pattern with a first measurement gap repetition period (MGRP) for a first receive (Rx) chain of a user equipment (UE); and configure a second measurement gap pattern with a second measurement gap repetition period (MGRP) for a second receive (Rx) chain of the UE, wherein the first MGRP is different from the second MGRP. The apparatus may configure the measurement gap pattern to support carrier aggregation and/or dual connectivity.

1 . An apparatus of a base station, comprising:
 a controller to:   configure a first measurement gap pattern with a first measurement gap repetition period (MGRP) for a first receive (Rx) chain of a user equipment (UE);   configure a second measurement gap pattern with a second MGRP for a second receive Rxchain of the UE, wherein the first MGRP is different from the second MGRP; and   a transmitter coupled to the controller, to transmit the first measurement gap pattern and the second measurement gap pattern to the UE.   
     
     
         2 . The apparatus of the base station of  claim 1 , wherein the controller is further to:
 configure a first measurement gap of the first Rx chain to include a set of one or more gaps that each have a gap length shorter than that of the first measurement gap.   
     
     
         3 . The apparatus of the base station of  claim 2 , wherein the controller is further to:
 configure a gap in the set of gaps to align with a first subframe of the first measurement gap.   
     
     
         4 . The apparatus of the base station of  claim 2 , wherein a gap in the set of gap to align with a last subframe of the first measurement gap. 
     
     
         5 . The apparatus of the base station of  claim 1 , wherein the controller is further to:
 configure a first measurement gap for the first Rx chain to include a set of one or more gaps based on an arrival time difference between the first Rx chain and the second Rx chain.   
     
     
         6 . The apparatus of the base station of  claim 5 , wherein the controller is further to:
 configure a first gap in the set of gaps in a subframe of the first Rx chain, wherein the subframe is concurrent with a front boundary of a second measurement gap of the second Rx chain.   
     
     
         7 . The apparatus of the base station of  claim 6 , wherein the controller is further to:
 configure a first gap in the set of gaps in a subframe of the first Rx chain, wherein the subframe is concurrent with a front boundary of a second measurement gap of the second Rx chain to support an asynchronous dual connectivity.   
     
     
         8 . The apparatus of the base station of  claim 5 , wherein the controller is further to:
 configure a subsequent gap in the set of gaps in a subframe with an index of n+1 or a subframe with an index of n+5 of the first Rx chain, wherein n represent an index of the subframe for the first gap, in response to the arrival time difference is less than 500 us.   
     
     
         9 . The apparatus of the base station of  claim 5 , wherein the controller is further to:
 configure a subsequent gap in the set of gaps in a subframe with an index of n+5 or a subframe with an index of n+6 of the first Rx chain, wherein n represent an index of the subframe for the first gap, in response to the arrival time difference is not less than 500 us.   
     
     
         10 . The apparatus of the base station of  claim 1 , wherein the controller is further to:
 configure a periodic gap for the first Rx chain, wherein a periodicity of the periodic gap is N ms, wherein N to have a value more than 5.   
     
     
         11 . The apparatus of the base station of  claim 10 , wherein the controller is further to:
 configure the periodic gap for the first Rx chain in response to the first Rx chain not having a measurement gap and the second Rx chain is used for inter-frequency measurement.   
     
     
         12 . The apparatus of the base station of  claim 10 , wherein the controller is further to:
 configure a second measurement gap for the second Rx chain based on the periodic gap of the first Rx chain.   
     
     
         13 . The apparatus of the base station of  claim 12 , wherein the controller is further to:
 configure the measurement of the second Rx chain in one or more subframes after the periodic measurement gap.   
     
     
         14 . The apparatus of the base station of  claim 1 , wherein the controller is further to:
 set up a periodic gap for the first Rx chain, wherein a periodicity of the periodic gap is N ms, wherein N to have a value of 40.   
     
     
         15 . The apparatus of the base station of claim  23 , wherein the controller is further to:
 set up the periodic gap for the first Rx chain in response to the first Rx chain not having a measurement gap and the second Rx chain is used for inter-frequency measurement.   
     
     
         16 . The apparatus of the base station of claim  23 , wherein the controller is further to:
 set up a second measurement gap for the second Rx chain based on the periodic gap of the first Rx chain.   
     
     
         17 . The apparatus of the base station of  claim 12 , wherein the controller is further to:
 set up the measurement of the second Rx chain in one or more subframes after the periodic measurement gap.   
     
     
         18 . A user equipment (UE), comprising:
 a receiver to receive a first measurement gap pattern with a first MGRP for a first receive (Rx) chain of the user equipment (UE) and a second measurement gap pattern with a second MGRP for a second receive (Rx) chain of the UE, wherein the first MGRP is different from the second MGRP; and   a controller to set up the first measurement gap based on the first measurement gap pattern and the first measurement gap based on the second measurement gap pattern.   
     
     
         19 . The UE of  claim 18 , wherein the controller is further to:
 set up a first measurement gap of the first Rx chain to include a set of one or more gaps that each have a gap length shorter than that of the first measurement gap.   
     
     
         20 . The UE of  claim 19 , wherein the controller is further to:
 set up a gap in the set of gap at a first subframe of the first measurement gap.   
     
     
         21 - 30 . (canceled)