Interference management with adaptive resource block allocation
Certain aspects of the present disclosure relate to methods and apparatus for interference management with adaptive resource block (RB) allocation. In an exemplary method, a base station (BS) obtains an indication that downlink transmissions to a first user equipment (UE) potentially interfere with uplink transmissions by a second UE, the BS dynamically allocates, based on the indication, a first set of one or more resource blocks (RBs) for the downlink transmissions to the first UE, and the BS then transmits an indication of the first set of RBs to the first UE. Other aspects, embodiments, and features are also claimed and described.
1. A method for wireless communications by a user equipment (UE), comprising:
receiving, from a base station (BS), an indication of a first set of resource blocks (RBs) to receive a first downlink (DL) transmission in a time interval;
receiving, from the BS, an indication of a dynamically allocated second set of RBs to receive a second DL transmission from the BS in the time interval; and
altering one or more parameters of a receiver, based on the second set of RBs, when receiving the second DL transmission on the second set of RBs, wherein altering the one or more parameters comprises switching from a first baseband (BB) filter of the UE to a second BB filter of the UE.
2. The method of claim 1 , wherein the first BB filter comprises a first analog filter and the second BB filter comprises a second analog filter.
3. The method of claim 1 , wherein the first BB filter comprises a first digital filter and the second BB filter comprises a second digital filter.
4. The method of claim 1 , wherein altering the one or more parameters comprises switching a phase-locked loop (PLL) of the receiver to a center frequency determined based on the second set of RBs.
5. The method of claim 1 , wherein altering the one or more parameters comprises changing a sampling frequency.
6. The method of claim 1 , further comprising:
determining that an uplink (UL) transmission on the first set of RBs potentially interferes with the first DL transmission; and
transmitting an indication of the potential interference to the BS.
7. The method of claim 1 , further comprising:
determining that an uplink (UL) transmission on the first set of RBs potentially interferes with the first DL transmission; and
transmitting a request to the BS for a change in resources allocated to the UE, wherein the indication of the second set of RBs is transmitted by the BS in response to the request.
8. An apparatus for wireless communications, comprising:
a receiver;
a processor configured to:
obtain an indication of a first set of resource blocks (RBs) to receive a first downlink (DL) transmission from a base station (BS) in a time interval,
obtain an indication of a dynamically allocated second set of RBs to receive a second DL transmission from the BS in the time interval, and
alter one or more parameters of the receiver, based on the second set of RBs, when the apparatus is receiving the second DL transmission on the second set of RBs by causing the receiver to switch from a first baseband (BB) filter to a second BB filter; and
a memory coupled with the processor.
9. The apparatus of claim 8 , wherein:
the first BB filter comprises a first analog filter and the second BB filter comprises a second analog filter.
10. The apparatus of claim 8 , wherein:
the receiver comprises a phase-locked loop (PLL); and
the processor is configured to alter the one or more parameters by causing the receiver to switch the PLL of the receiver to a center frequency determined based on the second set of RBs.
11. The apparatus of claim 8 , wherein the processor is configured to alter the one or more parameters by changing a sampling frequency.
12. The apparatus of claim 8 , wherein the processor is further configured to:
determine that an uplink (UL) transmission on the first set of RBs potentially interferes with the first DL transmission; and
output for transmission, to the BS, an indication of the potential interference.
13. The apparatus of claim 8 , wherein the processor is further configured to:
determine that an uplink (UL) transmission on the first set of RBs potentially interferes with the first DL transmission; and
output for transmission, to the BS, a request for a change in resources allocated to the UE, wherein the indication of the second set of RBs is transmitted by the BS in response to the request.
14. The apparatus of claim 8 , wherein:
the first BB filter comprises a first digital filter and the second BB filter comprises a second digital filter.
15. An apparatus for wireless communications, comprising:
means for receiving, from a base station (BS), an indication of a first set of resource blocks (RBs) to receive a first downlink (DL) transmission in a time interval;
means for receiving, from the B S, an indication of a dynamically allocated second set of RBs to receive a second DL transmission from the BS in the time interval; and
means for altering one or more parameters of the means for receiving, based on the second set of RBs, when receiving the second DL transmission on the second set of RBs, wherein the means for altering the one or more parameters comprises means for switching from a first baseband (BB) filter to a second BB filter.
16. The apparatus of claim 15 , wherein the means for switching from a first BB filter to a second BB filter comprises means for switching from a first BB analog filter to a second BB analog filter.
17. The apparatus of claim 15 , wherein the means for switching from a first BB filter to a second BB filter comprises means for switching from a first BB digital filter to a second BB digital filter.
18. The apparatus of claim 15 , wherein the means for altering the one or more parameters comprises means for switching a phase-locked loop (PLL), of the means for receiving, to a center frequency determined based on the second set of RBs.
19. The apparatus of claim 15 , wherein the means for altering the one or more parameters comprises means for changing a sampling frequency.
20. The apparatus of claim 15 , further comprising:
means for determining that an uplink (UL) transmission on the first set of RBs potentially interferes with the first DL transmission; and
means for transmitting an indication of the potential interference to the BS.
21. The apparatus of claim 15 , further comprising:
means for determining that an uplink (UL) transmission on the first set of RBs potentially interferes with the first DL transmission; and
means transmitting a request to the BS for a change in resources allocated to the apparatus, wherein the indication of the second set of RBs is transmitted by the BS in response to the request.
22. A non-transitory computer-readable medium including instructions that, when executed by a processing system of a user equipment (UE), cause the processing system to perform operations comprising:
receiving, from a base station (BS), an indication of a first set of resource blocks (RBs) to receive a first downlink (DL) transmission in a time interval;
receiving, from the BS, an indication of a dynamically allocated second set of RBs to receive a second DL transmission from the BS in the time interval; and
altering one or more parameters of a receiver, based on the second set of RBs, when receiving the second DL transmission on the second set of RBs, wherein altering the one or more parameters comprises switching from a first baseband (BB) filter of the UE to a second BB filter of the UE.