Bandwidth part configuration method, network device, and terminal

Abstract

A bandwidth part configuration method, a network device, and a terminal are provided. In the method, configuration information is obtained, the configuration information being used for configuring at least one frequency-domain bandwidth configuration, the size and/or the position of a bandwidth part configured by each of the at least one frequency-domain bandwidth configuration being defined by using a same frequency-domain unit as a unit, the frequency-domain unit comprising N resource blocks, and N being an integer greater than or equal to 1; and the configuration information is sent.

1 . A method for bandwidth part configuration, comprising:
 receiving configuration information, the configuration information being used to configure at least one frequency-domain bandwidth configuration, a size and/or position of a bandwidth part configured by each of the at least one frequency-domain bandwidth configuration being defined by adopting a same frequency-domain unit as a unit, the frequency-domain unit comprising N Resource Blocks (RBs) and N being an integer more than or equal to 1; and   determining the at least one frequency-domain bandwidth configuration according to the configuration information.   
     
     
         2 . The method of  claim 1 , wherein the bandwidth part configured by each frequency-domain bandwidth configuration has a same subcarrier spacing. 
     
     
         3 . The method of  claim 1 , wherein
 a subcarrier spacing of the RB is any subcarrier spacing in the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or   the subcarrier spacing of the RB is a maximum subcarrier spacing in the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration.   
     
     
         4 . The method of  claim 1 , wherein the size of the bandwidth part configured by each frequency-domain bandwidth configuration is a number of frequency-domain units in the bandwidth part configured by the frequency-domain bandwidth configuration. 
     
     
         5 . The method of  claim 1 , wherein the position of the bandwidth part configured by each frequency-domain bandwidth configuration is a relative offset of the bandwidth part configured by the frequency-domain bandwidth configuration relative to a synchronization signal or a cell carrier, the relative offset being defined by adopting the frequency-domain unit. 
     
     
         6 . The method of  claim 5 , wherein the relative offset comprises:
 an offset of a frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the synchronization signal; or   an offset of the frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the cell carrier.   
     
     
         7 . The method of  claim 1 , wherein the configuration information further comprises at least one of:
 serial number information of each frequency-domain bandwidth configuration; and   information about the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration,   wherein information about the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration comprises:   information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or   information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration.   
     
     
         8 . The method of  claim 1 , wherein receiving the configuration information comprises:
 receiving the configuration information sent through high-layer signaling or a system broadcast message.   
     
     
         9 . The method of  claim 1 , further comprising:
 receiving first indication information, the first indication information comprising information of a serial number indicating one frequency-domain bandwidth configuration in the at least one frequency-domain bandwidth configuration,   wherein receiving the first indication information comprises:   receiving the first indication information sent through high-layer signaling or a system broadcast message or Downlink Control Information (DCI).   
     
     
         10 . The method of  claim 1 , further comprising:
 receiving second indication information, the second indication information comprising frequency-domain resource allocation information based on one frequency-domain bandwidth configuration in the at least one frequency-domain bandwidth configuration,   wherein receiving the second indication information comprises:   receiving the second indication information sent through high-layer signaling or a system broadcast message or Downlink Control Information (DCI).   
     
     
         11 . A network device, comprising:
 a processor, configured to obtain configuration information, the configuration information being used to configure at least one frequency-domain bandwidth configuration, a size and/or position of a bandwidth part configured by each of the at least one frequency-domain bandwidth configuration being defined by adopting a same frequency-domain unit as a unit, the frequency-domain unit comprising N Resource Blocks (RBs) and N being an integer more than or equal to 1; and   a transceiver, configured to send the configuration information.   
     
     
         12 . The network device of  claim 11 , wherein the bandwidth part configured by each frequency-domain bandwidth configuration has a same subcarrier spacing or different subcarrier spacings. 
     
     
         13 . The network device of  claim 11 , wherein
 a subcarrier spacing of the RB is any subcarrier spacing in the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or   the subcarrier spacing of the RB is a maximum subcarrier spacing in the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration.   
     
     
         14 . The network device of  claim 11 , wherein the size of the bandwidth part configured by each frequency-domain bandwidth configuration is a number of frequency-domain units in the bandwidth part configured by the frequency-domain bandwidth configuration. 
     
     
         15 . The network device of  claim 11 , wherein the position of the bandwidth part configured by each frequency-domain bandwidth configuration is a relative offset of the bandwidth part configured by the frequency-domain bandwidth configuration relative to a synchronization signal or a cell carrier, the relative offset being defined by adopting the frequency-domain unit. 
     
     
         16 . The network device of  claim 15 , wherein the relative offset comprises:
 an offset of a frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the synchronization signal; or   an offset of the frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the cell carrier.   
     
     
         17 . The network device of  claim 11 , wherein the configuration information further comprises at least one of:
 serial number information of each frequency-domain bandwidth configuration; and   information about the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration,   wherein information about the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration comprises:   information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or   information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration.   
     
     
         18 . The network device of  claim 11 , wherein the transceiver is specifically configured to:
 send the configuration information through high-layer signaling or a system broadcast message.   
     
     
         19 . The network device of  claim 11 , wherein the transceiver is further configured to:
 send first indication information, the first indication information comprising information of a serial number indicating one frequency-domain bandwidth configuration in the at least one frequency-domain bandwidth configuration,   wherein the sending unit is specifically configured to:   send the first indication information through high-layer signaling or a system broadcast message or Downlink Control Information (DCI).   
     
     
         20 . The network device of  claim 11 , wherein the transceiver is further configured to:
 send second indication information, the second indication information comprising frequency-domain resource allocation information based on one frequency-domain bandwidth configuration in the at least one frequency-domain bandwidth configuration,   wherein the transceiver is specifically configured to:   send the second indication information through high-layer signaling or a system broadcast message or Downlink Control Information (DCI).   
     
     
         21 . A terminal, comprising:
 a transceiver, configured to receive configuration information, the configuration information being used to configure at least one frequency-domain bandwidth configuration, a size and/or position of a bandwidth part configured by each of the at least one frequency-domain bandwidth configuration being defined by adopting a same frequency-domain unit as a unit, the frequency-domain unit comprising N Resource Blocks (RBs) and N being an integer more than or equal to 1; and   a processor, configured to determine the at least one frequency-domain bandwidth configuration according to the configuration information.   
     
     
         22 . The terminal of  claim 21 , wherein the bandwidth part configured by each frequency-domain bandwidth configuration has a same subcarrier spacing or different subcarrier spacings. 
     
     
         23 . The terminal of  claim 21 , wherein
 a subcarrier spacing of the RB is any subcarrier spacing in the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or   the subcarrier spacing of the RB is a maximum subcarrier spacing in the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration.   
     
     
         24 . The terminal of  claim 21 , wherein the size of the bandwidth part configured by each frequency-domain bandwidth configuration is a number of frequency-domain units in the bandwidth part configured by the frequency-domain bandwidth configuration. 
     
     
         25 . The terminal of  claim 21 , wherein the position of the bandwidth part configured by each frequency-domain bandwidth configuration is a relative offset of the bandwidth part configured by the frequency-domain bandwidth configuration relative to a synchronization signal or a cell carrier, the relative offset being defined by adopting the frequency-domain unit. 
     
     
         26 . The terminal of  claim 25 , wherein the relative offset comprises:
 an offset of a frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the synchronization signal; or   an offset of the frequency-domain low end of the bandwidth part configured by each frequency-domain bandwidth configuration relative to a frequency-domain low end of the cell carrier.   
     
     
         27 . The terminal of  claim 21 , wherein the configuration information further comprises at least one of:
 serial number information of each frequency-domain bandwidth configuration; and   information about the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration,   wherein information about the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration comprises:   information of serial numbers of the subcarrier spacings of the bandwidth part configured by each frequency-domain bandwidth configuration; or   information of a serial number of a parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration, the parameter set of the bandwidth part configured by each frequency-domain bandwidth configuration at least comprising a subcarrier spacing and cyclic prefix of the bandwidth part configured by each frequency-domain bandwidth configuration.   
     
     
         28 . The terminal of  claim 21 , wherein the transceiver is configured to:
 receive the configuration information sent through high-layer signaling or a system broadcast message.   
     
     
         29 . The terminal of  claim 21 , wherein the transceiver is further configured to:
 receive first indication information, the first indication information comprising information of a serial number indicating one frequency-domain bandwidth configuration in the at least one frequency-domain bandwidth configuration,   wherein the receiving unit is configured to:   receive the first indication information sent through high-layer signaling or a system broadcast message or Downlink Control Information (DCI).   
     
     
         30 . The terminal of  claim 21 , wherein the transceiver is further configured to:
 receive second indication information, the second indication information comprising frequency-domain resource allocation information based on one frequency-domain bandwidth configuration in the at least one frequency-domain bandwidth configuration,   wherein the receiving unit is configured to:   receive the second indication information sent through high-layer signaling or a system broadcast message or Downlink Control Information (DCI).