Resource allocation for grant-free uplink (UL) transmission via RRC signaling
Methods and systems are disclosed for resource allocation for Grant-free Uplink (UL) transmissions, such as resource allocation via RRC signaling and Resource allocation via LI signaling, and for procedures associated with Grant-free UL transmission, such as for Grant-free operations with RRC signaling and Grant-free operations with PHY signaling.
1. A user equipment apparatus (UE), comprising a processor, a memory, communication circuitry, and computer-executable instructions stored in the memory which, when executed by the processor, cause the UE to:
receive a first allocation, the first allocation pertaining to physical resources for grant-free access, the first allocation comprising a set of time resource configurations and a set of frequency resource configurations;
determine, based at least in part on the first allocation, a second allocation, the second allocation being a physical resource configuration for a data packet transmission;
send, at a first time and frequency resource of the second allocation, a data packet; and
send, based upon a repetition indication, the data packet at one or more additional time and frequency resources of the second allocation.
2. The UE of claim 1 , wherein the set of time resources comprises one or more of: a set of durations; a set of starting times; and a set of time windows.
3. The UE of claim 2 , wherein a duration further comprises one or more time windows.
4. The UE of claim 2 , wherein a starting time further indicates the beginning of a time window.
5. The UE of claim 2 , wherein a time window allows access for a grant-free initial transmission or a repetition transmission.
6. The UE of claim 1 , wherein the set of frequency allocations comprises one or more of: a set of frequency ranges, and a set of start frequencies and bandwidths.
7. The UE of claim 6 , wherein a frequency range comprises one or more resource blocks (RBs) or resource block groups (RBGs), the RB(s) or RBG(s) being allocated for grant-free access.
8. The UE of claim 6 , wherein a start frequency is the first RB or RBG of a frequency range.
9. The UE of claim 1 , wherein the instructions further cause the UE to receive the first allocation via radio resource control (RRC) messaging.
10. The UE of claim 1 , wherein the instructions further cause UE to receive, via a downlink control information (DCI) on a physical down link control channel (PDCCH), the first allocation.
11. The UE of claim 10 , wherein the instructions further cause UE to:
receive, via the DCI, an indication to activate or deactivate the first allocation; and
based on the indication to activate or deactivate the first allocation, use or release the first allocation.
12. The UE of claim 11 , wherein the indication to activate or deactivate the first allocation is an indication to deactivate the first allocation and comprises a modulation and coding scheme, wherein each bit of the modulation and coding scheme is set to one.
13. The UE of claim 11 , wherein the indication to activate or deactivate the first allocation further is an indication to deactivate the first allocation and comprises a resource block assignment, wherein each bit of the resource block assignment is set to one.
14. The UE of claim 10 , wherein the DCI is scrambled with a radio network temporary identification (RNTI) for grant-free access.
15. The UE of claim 10 , wherein the DCI comprises a priority for transmission.