Flexible data and/or reference signal scheduling in one or more uplink pilot time slots in a wireless network
Certain aspects of the present disclosure provide techniques for flexible scheduling of reference signals and data in an uplink pilot time slot (UpPTS) in a wireless network. A method of wireless communication by a base station (BS) is provided. The method generally includes scheduling a first one or more symbols of a UpPTS for one or more user equipments (UEs) to transmit data and a second one more symbols of the UpPTS for one or more UEs to transmit one or more sounding reference signals (SRSs). The BS receives the data in the first one or more symbols and the one or more SRSs in the second one or more symbols. Based on the scheduling received from the BS, the UE determines the symbols of the UpPTS for transmission of SRSs and data.
1. A method for wireless communications by a base station (BS), comprising:
scheduling a first one or more symbols starting from a beginning symbol of an uplink pilot time slot (UpPTS) for a user equipment (UE) to transmit data; and
receiving the data from the UE in the first one or more symbols.
2. The method of claim 1 , further comprising:
scheduling at least one UE to transmit sounding reference signals (SRS) in a second one or more symbols of the UpPTS, subsequent the first one or more symbols.
3. The method of claim 2 , further comprising:
determining the first one or more symbols of the UpPTS for data and the second one or more symbols of UpPTS for SRS based on a number of UEs to be scheduled to transmit SRS.
4. The method of claim 2 , wherein the scheduling comprises scheduling multiple UEs to transmit SRSs in different symbols of the second one or more symbols of the UpPTS.
5. The method of claim 1 , further comprising:
semi-statically configuring a number of the first one or more symbols of the UpPTS for data.
6. The method of claim 1 , wherein the data is transmitted in a physical uplink shared channel (PUSCH).
7. The method of claim 1 , wherein the UpPTS comprises six symbols.
8. The method of claim 1 , wherein the scheduling comprises scheduling the at least one other UE to transmit data in a second one or more symbols of another UpPTS in a same frame as the UpPTS.
9. The method of claim 1 , further comprising:
determining that one or more symbols of another UpPTS of a subsequent subframe in which the UE re-transmits data at least one of: correspond to or do not correspond to the scheduled first one or more symbols of the UpPTS.
10. A method for wireless communications by a user equipment (UE), comprising:
determining to transmit data in a first one or more symbols starting from a beginning of an uplink pilot time slot (UpPTS), wherein the determining is based on scheduling received from a base station; and
transmitting the data in the first one or more symbols of the UpPTS.
11. The method of claim 10 , further comprising:
determining to transmit sounding reference signals (SRS) in a second one or more symbols of the UpPTS, subsequent the first number of symbols.
12. The method of claim 10 , further comprising receiving a semi-static configuration of a number of the first one or more symbols of the UpPTS for data.
13. The method of claim 10 , wherein the data is transmitted in a physical uplink shared channel (PUSCH).
14. The method of claim 10 , wherein the UpPTS comprises six symbols.
15. An apparatus for wireless communications, comprising:
means for scheduling a first one or more symbols starting from a beginning symbol of an uplink pilot time slot (UpPTS) for a user equipment (UE) to transmit data; and
means for receiving the data from the UE in the first one or more symbols.
16. The apparatus of claim 15 , further comprising:
means for scheduling at least one UE to transmit sounding reference signals (SRS) in a second one or more symbols of the UpPTS, subsequent the first one or more symbols.
17. The apparatus of claim 16 , further comprising:
means for determining the first one or more symbols of the UpPTS for data and the second one or more symbols of UpPTS for SRS based on a number of UEs to be scheduled to transmit SRS.
18. The apparatus of claim 16 , wherein the means for scheduling comprises means for scheduling multiple UEs to transmit SRSs in different symbols of the second one or more symbols of the UpPTS.
19. The apparatus of claim 15 , further comprising:
means for semi-statically configuring a number of the first one or more symbols of the UpPTS for data.
20. The apparatus of claim 15 , wherein the UpPTS comprises six symbols.
21. The apparatus of claim 15 , wherein the means for scheduling comprises means for scheduling the at least one other UE to transmit data in a second one or more symbols of another UpPTS in a same frame as the UpPTS.
22. The apparatus of claim 15 , further comprising:
means for determining that one or more symbols of another UpPTS of a subsequent subframe in which the UE re-transmits data at least one of: correspond to or do not correspond to the scheduled first one or more symbols of the UpPTS.
23. An apparatus for wireless communications, comprising:
means for determining a first one or more symbols starting from a beginning of an uplink pilot time slot (UpPTS) for transmission of data, wherein the determining is based on scheduling received from a base station; and
means for transmitting the data in the first one or more symbols of the UpPTS.
24. The apparatus of claim 23 , further comprising: means for determining to transmit sounding reference signals (SRS) in a second one or more symbols of the UpPTS, subsequent the first number of symbols.
25. The apparatus of claim 23 , further comprising means for receiving a semi-static configuration of a number of the first one or more symbols of the UpPTS for data.
26. The apparatus of claim 23 , wherein the UpPTS comprises six symbols.