Synchronization signal block resource selection according to mobility state

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an integrated access and backhaul (IAB) node may identify one or more resources for transmitting one or more synchronization signal blocks (SSBs), the one or more resources being associated with a mobility state of the IAB node. The IAB node may transmit the one or more SSBs in the one or more resources. Numerous other aspects are provided.

What is claimed is: 
     
         1 . An apparatus for wireless communication at a first network node, comprising:
 one or more memories; and   one or more processors, coupled to the memories, configured to cause the first network node to:
 select one or more resources for a second network node based on a mobility state of the second network node; and 
 provide an indication of the one or more resources to the second network node based on the one or more resources selected for the second network node. 
   
     
     
         2 . The apparatus of  claim 1 , wherein, to select the one or more resources, the one or more processors are configured to cause the first network node to:
 select, based on the mobility state of the second network node, the one or more resources for the second network node to transmit one or more synchronization signal blocks (SSBs).   
     
     
         3 . The apparatus of  claim 2 , wherein the one or more SSBs are associated with at least one of cell access, cell selection, neighbor measurement, or peer discovery. 
     
     
         4 . The apparatus of  claim 2 , wherein the one or more SSBs are transmitted according to a synchronization raster associated with the mobility state. 
     
     
         5 . The apparatus of  claim 1 , wherein the second network node is an integrated access and backhaul (IAB) node. 
     
     
         6 . The apparatus of  claim 1 , wherein the mobility state is a stationary mobility state or a mobile mobility state. 
     
     
         7 . The apparatus of  claim 1 , wherein, to select the one or more resources, the one or more processors are configured to cause the first network node to:
 select the one or more resources for the second network node based on a type of the mobility state.   
     
     
         8 . The apparatus of  claim 1 ,
 wherein the mobility state is a first type of mobility state,   wherein, to select the one or more resources, the one or more processors are configured to cause the first network node to:
 select the one or more resources for the second network node based on a first synchronization raster assigned to the first type of mobility state, and 
   wherein a second synchronization raster is assigned to a second type of mobility state.   
     
     
         9 . The apparatus of  claim 1 ,
 wherein the mobility state is a first type of mobility state,   wherein, to select the one or more resources, the one or more processors are configured to cause the first network node to:
 select the one or more resources for the second network node based on one or more of a first periodicity or a first time offset assigned to the first type of mobility state, and 
   wherein one or more of a second periodicity or a second time offset is assigned to a second type of mobility state.   
     
     
         10 . The apparatus of  claim 1 ,
 wherein the mobility state is a first type of mobility state,   wherein, to select the one or more resources, the one or more processors are configured to cause the first network node to:
 select the one or more resources for the second network node based on one or more of a first synchronization signal block (SSB) measurement timing configuration (SMTC) window or a first SSB transmission configuration (STC) window assigned to the first type of mobility state, and 
   wherein a second SMTC window or a second STC window is assigned to a second type of mobility state.   
     
     
         11 . The apparatus of  claim 10 ,
 wherein the first SMTC window is one or more of orthogonal in time or orthogonal in frequency to the second SMTC window, or   wherein the first STC window is one or more of orthogonal in time or orthogonal in frequency to the second STC window.   
     
     
         12 . The apparatus of  claim 10 , wherein a first configuration of the first SMTC window or the first STC window identifies at least one of a first physical cell identifier (PCI) list or a first periodicity that is different from a second PCI list or a second periodicity identified by a second configuration of the second SMTC window or the second STC window. 
     
     
         13 . The apparatus of  claim 1 , wherein the indication includes information that enables the second network node to identify the one or more resources for transmission of one or more synchronization signal blocks (SSBs). 
     
     
         14 . The apparatus of  claim 1 ,
 wherein the one or more processors are configured to cause the first network node to:
 receive a request for the first network node to assign the one or more resources to the second network node based on the one or more resources not conflicting with one or more other resources selected for a third network node having a different mobility state, and 
   wherein the indication indicates that the one or more resources have been assigned to the second network node.   
     
     
         15 . A method of wireless communication performed at a first network node, comprising:
 selecting one or more resources for a second network node based on a mobility state of the second network node; and   transmitting an indication of the one or more resources to the second network node based on the one or more resources being selected for the second network node.   
     
     
         16 . The method of  claim 15 , wherein selecting the one or more resources comprises:
 selecting, based on the mobility state of the second network node, the one or more resources for the second network node to transmit one or more synchronization signal blocks (SSBs).   
     
     
         17 . The method of  claim 16 , wherein the one or more SSBs are associated with at least one of cell access, cell selection, neighbor measurement, or peer discovery. 
     
     
         18 . The method of  claim 16 , wherein the one or more SSBs are transmitted according to a synchronization raster associated with the mobility state. 
     
     
         19 . The method of  claim 15 , wherein the second network node is an integrated access and backhaul (IAB) node. 
     
     
         20 . The method of  claim 15 , wherein the mobility state is a stationary mobility state or a mobile mobility state. 
     
     
         21 . The method of  claim 15 , wherein selecting the one or more resources comprises:
 selecting the one or more resources for the second network node based on a type of the mobility state.   
     
     
         22 . The method of  claim 15 ,
 wherein the mobility state is a first type of mobility state,   wherein selecting the one or more resources comprises:
 selecting the one or more resources for the second network node based on a first synchronization raster assigned to the first type of mobility state, and 
   wherein a second synchronization raster is assigned to a second type of mobility state.   
     
     
         23 . The method of  claim 15 ,
 wherein the mobility state is a first type of mobility state,   wherein selecting the one or more resources comprises:
 selecting the one or more resources for the second network node based on one or more of a first periodicity or a first time offset assigned to the first type of mobility state, and 
   wherein one or more of a second periodicity or a second time offset is assigned to a second type of mobility state.   
     
     
         24 . The method of  claim 15 ,
 wherein the mobility state is a first type of mobility state,   wherein selecting the one or more resources comprises:
 selecting the one or more resources for the second network node based on one or more of a first synchronization signal block (SSB) measurement timing configuration (SMTC) window or a first SSB transmission configuration (STC) window assigned to the first type of mobility state, and 
   wherein a second SMTC window or a second STC window is assigned to a second type of mobility state.   
     
     
         25 . The method of  claim 24 ,
 wherein the first SMTC window is one or more of orthogonal in time or orthogonal in frequency to the second SMTC window, or   wherein the first STC window is one or more of orthogonal in time or orthogonal in frequency to the second STC window.   
     
     
         26 . The method of  claim 24 , wherein a first configuration of the first SMTC window or the first STC window identifies at least one of a first physical cell identifier (PCI) list or a first periodicity that is different from a second PCI list or a second periodicity identified by a second configuration of the second SMTC window or the second STC window. 
     
     
         27 . The method of  claim 15 , wherein the indication includes information that enables the second network node to identify the one or more resources for transmission of one or more synchronization signal blocks (SSBs). 
     
     
         28 . The method of  claim 15 , further comprising:
 receiving a request for the first network node to assign the one or more resources to the second network node based on the one or more resources not conflicting with one or more other resources selected for a third network node having a different mobility state,
 wherein the indication indicates that the one or more resources have been assigned to the second network node. 
   
     
     
         29 . A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
 one or more instructions that, when executed by one or more processors of a first network node, cause the first network node to:
 select one or more resources for a second network node based on a mobility state of the second network node; and 
 provide an indication of the one or more resources to the second network node based on the one or more resources selected for the second network node. 
   
     
     
         30 . An apparatus for wireless communication, comprising:
 means for selecting one or more resources for a second apparatus based on a mobility state of the second apparatus; and   means for providing an indication of the one or more resources to the second apparatus based on the one or more resources selected for the second apparatus.