Methods and apparatus for support of data transmission traffic with non-integer periodicity in wireless communication
A method and apparatus of a device that determines an occurrence of the DL SPS or the UL CG to determine a periodicity of a packet generation is described. In an exemplary embodiment, the method receives a configuration for a downlink (DL) Semi-Persistent Scheduling (SPS) or an uplink (UL) Configured Grant (CG). The configuration includes an indication of non-integer periodicity of the DL SPS or the UL CG. Additionally, the method determines an occurrence of the DL SPS or the UL CG based on the received configuration for the DL SPS or the UL CG to determine a periodicity of a packet generation. Thereafter, the method transmits or receives data based on the configuration for the DL SPS or the UL CG.
1. A baseband processor of a wireless user equipment (UE) coupled to memory storing instructions that, when executed by the baseband processor, cause the UE to perform operations comprising:
receiving a configuration for a downlink (DL) Semi-Persistent Scheduling (SPS) or an uplink (UL) Configured Grant (CG), wherein the configuration comprises an indication of non-integer periodicity of the DL SPS or the UL CG wherein the indication of non-integer periodicity of the DL SPS or the UL CG comprises a first positive integer and a second positive integer;
determining an occurrence of the DL SPS or the UL CG based on a ratio of the first positive integer and the second positive integer to determine a periodicity of a packet generation, wherein determining the occurrence of the DL SPS or the UL CG comprises:
rounding a term comprising the ratio of the first positive integer and the second positive integer using a predefined rounding function, wherein the predefined rounding function comprises a round, a ceiling, or a floor operation, and
receiving a jitter window parameter defining a jitter window around a nominal traffic arrival time, wherein a reception occasion occurs within the jitter window, wherein the nominal traffic arrival time is determined based on a running index and first and second positive integers; and
transmitting or receiving data based on the occurrence of the DL SPS or the UL CG.
2. The baseband processor of claim 1 , wherein the indication of non-integer periodicity of the DL SPS or the UL CG further comprises an indication to a frequency of the DL SPS or the UL CG.
3. The baseband processor of claim 1 , wherein the configuration further comprises an initial offset in slots or symbols, the initial offset in slots or symbols being associated with a slot index of a slot or a symbol in which an initial DL SPS or UL CG appears.
4. The baseband processor of claim 1 , wherein the occurrence of the DL SPS or the UL CG is further determined based on a System Frame Number (SFN) of a first reception of a Physical Downlink Shared Channel (PDSCH) through DL SPS or a first transmission of Physical Uplink Shared Channel (PUSCH) through UL CG and a start time of a slot of the first reception of the PDSCH or the first transmission of the PDSCH.
5. The baseband processor of claim 4 , wherein the occurrence of the DL SPS or the UL CG is further determined based on a number of slots in a frame.
6. The baseband processor of claim 5 , wherein the occurrence of the DL SPS or the UL CG is further determined based on a number of symbols per slot and a start time of a symbol of the first reception of the PDSCH or the first transmission of the PUSCH.
7. The baseband processor of claim 4 , wherein the occurrence of the DL SPS or the UL CG is further determined based on a time reference of the SFN, and a time domain offset, wherein the UL CG is a type 1.
8. The baseband processor of claim 7 , wherein the occurrence of the DL SPS or the UL CG is further determined based on a hyperframe index, wherein the hyperframe index is determined based on first positive and second positive integers.
9. The baseband processor of claim 8 , wherein the occurrence of the DL SPS or the UL CG is further determined based on a number of symbols per slot.
10. The baseband processor of claim 1 , wherein the reception occasion is expanded on one side or both sides of the reception occasion to include symbols not considered by any of the reception occasion, the symbols including gap symbols between reception occasions, trailing symbols, or preceding symbols for a reception occasion.
11. The baseband processor of claim 10 , wherein a reference reception occasion indicates a nominal reception occasion in which the nominal traffic arrival time appears, wherein the jitter window is determined based on the jitter window parameter and the reference reception occasion.
12. The baseband processor of claim 1 , wherein the jitter window parameter is received via a Downlink Control Information (DCI), a Medium Access Control (MAC) Control Element (CE) or an RRC signaling.
13. The baseband processor of claim 1 , wherein determining the occurrence of the DL SPS or the UL CG further comprises:
receiving data scheduled through DL SPS or transmitting data through UL CG in a window defined by the jitter window.
14. A user equipment (UE) comprising:
an antenna;
a memory;
a RF circuitry commutatively coupled to the antenna; and
a processor coupled to memory storing instructions that, when executed by the processor, cause the UE to perform operations comprising:
receiving a configuration for a downlink (DL) Semi-Persistent Scheduling (SPS) or an uplink (UL) Configured Grant (CG), wherein the configuration comprises an indication of non-integer periodicity of the DL SPS or the UL CG,
determining an occurrence of the DL SPS or the UL CG based on the received configuration for the DL SPS or the UL CG to determine a periodicity of a packet generation, including receiving a jitter window parameter defining a jitter window around a nominal traffic arrival time, wherein a reception occasion occurs within the jitter window, wherein the nominal traffic arrival time is determined based on a running index and first and second positive integers, and
transmitting or receiving data based on the occurrence of the DL SPS or the UL CG.
15. A method, performed by a user equipment (UE), the method comprising:
receiving a configuration for a downlink (DL) Semi-Persistent Scheduling (SPS) or an uplink (UL) Configured Grant (CG), wherein the configuration comprises an indication of non-integer periodicity of the DL SPS or the UL CG wherein the indication of non-integer periodicity of the DL SPS or the UL CG comprises a first positive integer and a second positive integer;
determining an occurrence of the DL SPS or the UL CG based on a ratio of the first positive integer and the second positive integer to determine a periodicity of a packet generation, wherein determining the occurrence of the DL SPS or the UL CG comprises:
rounding a term comprising the ratio of the first positive integer and the second positive integer using a predefined rounding function, wherein the predefined rounding function comprises a round, a ceiling, or a floor operation, and
receiving a jitter window parameter defining a jitter window around a nominal traffic arrival time, wherein a reception occasion occurs within the jitter window, wherein the nominal traffic arrival time is determined based on a running index and first and second positive integers; and
transmitting or receiving data based on the occurrence of the DL SPS or the UL CG.