Signalling of Frequency-Domain Resource Assignment

A method for receiving, by a user equipment (UE) from a network node in a wireless communication network, an assignment of frequency-domain resource blocks (RBs) of a communication channel, the method comprising:

• receiving, from the network node, an indication of an active bandwidth part (BWP), wherein the active BWP is of a size NBWP,1size in number of frequency-domain RBs;
• receiving, via a downlink control channel, an indication of one or more assigned frequency-domain RBs within the active BWP, wherein the indication of the one or more assigned frequency-domain RBs is encoded with a plurality of bits, the number of the plurality of bits being related to a size NBWP,2size of another BWP than the active BWP, wherein the size NBWP,2size is smaller than the size NBWP,1size;
• and
• decoding the indication of the one or more assigned frequency-domain RBs to obtain the one or more assigned RBs represented by a starting virtual RB, RBstart, and a length of contiguously allocated RBs, LRBs, within the active BWP, wherein the starting virtual RB is encoded with a resolution of K RBs, wherein K is determined based on a ratio of the size NBWP,1size and the size NBWP,2size.

A network node configured to communicate with a user equipment (UE) in a wireless communication network, the network node comprising:

• power supply circuitry configured to supply power to the network node;
• transceiver circuitry configured to communicate with the UE;
• and
• processing circuitry operably coupled to the transceiver circuitry, whereby the processing circuitry and the transceiver circuitry are configured to:
• send, to the UE, an indication of an active bandwidth part (BWP), wherein the active BWP is of a size NBWP,1size in number of frequency-domain resource blocks (RBs);
• select frequency-domain RBs, within the active BWP, to be assigned to the UE;
• encode an indication of the selected frequency-domain RBs represented by a starting virtual RB, RBstart, and a length of contiguously allocated RBs, LRBs, using a plurality of bits, the number of the plurality of bits being related to a size NBWP,2size of another BWP than the active BWP, wherein the size NBWP,2size is smaller than the size NBWP,1size, and wherein the starting virtual RB is encoded with a resolution of K RBs, wherein K is determined based on a ratio of the size NBWP,1size and the size NBWP,2size;
• and
• send the encoded indication to the UE via a downlink control channel.

A method for assigning, to a user equipment (UE) by a network node in a wireless communication network, frequency-domain resource blocks (RBs) of a communication channel, the method comprising:

• sending, to the UE, an indication of an active bandwidth part, BWP, wherein the active BWP is of a size NBWP,1size in number of frequency-domain RBs;
• selecting frequency-domain RBs, within the active BWP, to be assigned to the UE;
• encoding an indication of the selected frequency-domain RBs represented by a starting virtual RB, RBstart, and a length of contiguously allocated RBs, LRBs, using a plurality of bits, the number of the plurality of bits being related to a size NBWP,2size of another BWP than the active BWP, wherein the size NBWP,2size is smaller than the size NBWP,1size and wherein the starting virtual RB is encoded with a resolution of K RBs, wherein K is determined based on a ratio of the size NBWP,1size and the size NBWP,2size, and
• sending the encoded indication to the UE via a downlink control channel.