Subcarrier spacing indication

Abstract

There is disclosed a method of operating a receiving radio node in a wireless communication network, the method comprising receiving signaling on an initial bandwidth part (IBWP) utilising a subcarrier spacing, the subcarrier spacing being based on at least one of a signaling characteristic of received synchronisation signaling and/or information carried in received synchronisation signaling. The disclosure also pertains to related devices and methods.

1 . A method of operating a receiving radio node in a wireless communication network, the method comprising:
 receiving signaling on an initial bandwidth part (IBWP) utilising a subcarrier spacing, the subcarrier spacing being based on at least one of a signaling characteristic of received synchronisation signaling and information carried in received synchronisation signaling.   
     
     
         2 . The method according to  claim 1 , wherein the signaling characteristic is at least one of a transmission frequency of the synchronisation signaling and a subcarrier spacing of the synchronisation signaling. 
     
     
         3 . The method according to  claim 1 , wherein the information carried in received synchronisation signaling is carried in a Master Information Block of a Physical Broadcast Channel (PBCH). 
     
     
         4 . The method according to  claim 1 , wherein the subcarrier spacing of the IBWP is one of a set of subcarrier spacings, the set comprising at least one of:
 elements corresponding to 480 kHz and 960 Khz of subcarrier spacing;   at least 3 elements corresponding to different subcarrier spacings, and/or elements corresponding to 240 kHz, 480 kHz, and 960 kHz;   elements corresponding to 120 kHz, 480 kHz, and 960 kHz; and   elements corresponding to 120 kHz, 240 kHz, 480 kHz and 960 kHz.   
     
     
         5 . The method according to  claim 1 , wherein the information carried in the synchronisation signaling indicates a type of Master Information Block carried in the synchronisation signaling, wherein different types are used for different numbers of potential subcarrier spacings for the IBWP. 
     
     
         6 . The method according to  claim 1 , wherein the information carried in the synchronisation signaling comprises a bit field of at least 2 bits indicating the subcarrier spacing for the IWBP. 
     
     
         7 . A radio node for a wireless communication network, the receiving radio node being configured to:
 receive signaling on an initial bandwidth part (IBWP) utilising a subcarrier spacing, the subcarrier spacing being based on at least one of a signaling characteristic of received synchronisation signaling and information carried in received synchronisation signaling.   
     
     
         8 . The radio node according to  claim 7 , wherein the signaling characteristic is at least one of a transmission frequency of the synchronisation signaling and a subcarrier spacing of the synchronisation signaling. 
     
     
         9 . The radio node according to  claim 7 , wherein the information carried in received synchronisation signaling is carried in a Master Information Block of a Physical Broadcast Channel (PBCH). 
     
     
         10 . The radio node according to  claim 7 , wherein the subcarrier spacing of the IBWP is one of a set of subcarrier spacings, the set comprising at least one of:
 elements corresponding to 480 kHz and 960 Khz of subcarrier spacing;   at least 3 elements corresponding to different subcarrier spacings, and/or elements corresponding to 240 kHz, 480 kHz, and 960 kHz;   elements corresponding to 120 kHz, 480 kHz, and 960 kHz; and   elements corresponding to 120 kHz, 240 kHz, 480 kHz and 960 kHz.   
     
     
         11 . The radio node according to  claim 7 , wherein the information carried in the synchronisation signaling indicates a type of Master Information Block carried in the synchronisation signaling, wherein different types are used for different numbers of potential subcarrier spacings for the IBWP. 
     
     
         12 . The radio node according to  claim 7 , wherein the information carried in the synchronisation signaling comprises a bit field of at least 2 bits indicating the subcarrier spacing for the IWBP. 
     
     
         13 . A method of operating a transmitting radio node in a wireless communication network, the method comprising:
 configuring a receiving radio node with a subcarrier spacing of an initial bandwidth part (IBWP) for reception of signaling, the configuring being based on at least one of a signaling characteristic of received synchronisation signaling and information carried in received synchronisation signaling.   
     
     
         14 . The method according to  claim 13 , wherein the signaling characteristic is at least one of a transmission frequency of the synchronisation signaling and a subcarrier spacing of the synchronisation signaling. 
     
     
         15 . The method according to  claim 13 , wherein the information carried in received synchronisation signaling is carried in a Master Information Block of a Physical Broadcast Channel (PBCH). 
     
     
         16 . The method according to  claim 13 , wherein the subcarrier spacing of the IBWP is one of a set of subcarrier spacings, the set comprising at least one of:
 elements corresponding to 480 kHz and 960 Khz of subcarrier spacing;   at least 3 elements corresponding to different subcarrier spacings, and/or elements corresponding to 240 kHz, 480 kHz, and 960 kHz;   elements corresponding to 120 kHz, 480 kHz, and 960 kHz; and   elements corresponding to 120 kHz, 240 kHz, 480 kHz and 960 kHz.   
     
     
         17 . The method according to  claim 13 , wherein the information carried in the synchronisation signaling indicates a type of Master Information Block carried in the synchronisation signaling, wherein different types are used for different numbers of potential subcarrier spacings for the IBWP. 
     
     
         18 . The method according to  claim 13 , wherein the information carried in the synchronisation signaling comprises a bit field of at least 2 bits indicating the subcarrier spacing for the IWBP. 
     
     
         19 . A transmitting radio node for a wireless communication network, the transmitting radio node being configured to:
 configure a receiving radio node with a subcarrier spacing of an initial bandwidth part (IBWP) for reception of signaling, the configuring being based on at least one of a signaling characteristic of received synchronisation signaling and information carried in received synchronisation signaling.   
     
     
         20 . A computer storage medium storing an executable computer program comprising instructions configured to cause processing circuitry to at least one of control and perform a method of operating a receiving radio node in a wireless communication network, the method comprising:
 receiving signaling on an initial bandwidth part (IBWP) utilising a subcarrier spacing, the subcarrier spacing being based on at least one of a signaling characteristic of received synchronisation signaling and information carried in received synchronisation signaling.