Resource allocation signaling
There is disclosed a method of operating a radio node in a Radio Access Network, the method including communicating utilizing frequency resources based on allocation information received in a message, the message having an allocation information structure containing the allocation information.
1. A method of operating a user equipment (UE) in a New Radio (NR) Radio Access Network, the method comprising:
transmitting uplink data utilizing allocated frequency resources based on allocation information received in a Downlink Control Information (DCI) message having an allocation information structure comprising a bitmap of B bits containing mapping information, the frequency resources being in a bandwidth of N resource blocks in frequency domain for transmitting the uplink data, the bandwidth being a specific part of the carrier bandwidth configured to the UE, the mapping information pertaining to the specific part of the carrier bandwidth;
a resource block group (RBG) size R in frequency domain being associated to the specific part of the carrier bandwidth, R representing the number of resource blocks in an RBG, R being dependent on the specific part of the carrier bandwidth configured to the UE, R having a value of a power of 2, R being associated to the specific part of the carrier bandwidth according to a configured scheme, and R being an element of a set of RBG sizes, the RBG sizes of the set relating to each other according to a power of 2; and
each bit of the B bits of the bit map being mapped to a different RBG of size R to indicate whether the RBG is allocated as frequency resource for transmission or not.
2. The method according to claim 1 , wherein different values of R are associated with different DCI messages.
3. The method according to claim 1 , wherein R is different from a size of RBGs used for allocation of frequency resources for reception of downlink communication.
4. The method according to claim 1 , wherein the allocation information structure comprises a header containing header information of M bits, the header information indicating the specific part of the carrier bandwidth to which the mapping information pertains.
5. The method according to claim 4 , wherein the header implicitly indicates R.
6. The method according to claim 5 , wherein each specific part of the carrier bandwidth of a set of specific parts of the carrier bandwidth is represented by a possible bit combination of the header.
7. The method according to claim 6 , wherein R is implicitly linked to the bit combination of the header.
8. A user equipment (UE) for a New Radio (NR) Radio Access network, the user equipment comprising processing circuitry and radio circuitry, and being configured to utilize the processing circuitry and radio circuitry to:
transmit uplink data utilizing allocated frequency resources based on allocation information received in a Downlink Control Information (DCI) message having an allocation information structure comprising a bitmap of B bits containing mapping information, the frequency resources being in a bandwidth of N resource blocks in frequency domain for transmitting the uplink data, the bandwidth being a specific part of the carrier bandwidth configured to the UE, the mapping information pertaining to the specific part of the carrier bandwidth;
a resource block group (RBG) size R in frequency domain being associated to the specific bandwidth part, R representing the number of resource blocks in an RBG, R being dependent on the specific part of the carrier bandwidth configured to the UE, R having a value of a power of 2, R being associated to the specific part of the carrier bandwidth according to a configured scheme, and R being an element of a set of RBG sizes, the RBG sizes of the set relating to each other according to a power of 2; and
each bit of the B bits of the bit map being mapped to a different RBG of size R to indicate whether the RBG is allocated as frequency resource for transmission or not.
9. The user equipment according to claim 8 , wherein different values of R are associated with different DCI messages.
10. The user equipment according to claim 8 , wherein R is different from a size of RBGs used for allocation of frequency resources for reception of downlink communication.
11. The user equipment according to claim 8 , wherein the allocation information structure comprises a header containing header information of M bits, the header information indicating the specific part of the carrier bandwidth to which the mapping information pertains.
12. The user equipment according to claim 11 , wherein the header implicitly indicates R.
13. The user equipment according to claim 12 , wherein each specific part of the carrier bandwidth of a set of specific parts of the carrier bandwidth is represented by a possible bit combination of the header.
14. The user equipment according to claim 13 , wherein R is implicitly linked to the bit combination of the header.