PUCCH and PUSCH default beam considering beam failure recovery
An apparatus of a user equipment (UE) comprises one or more baseband processors to generate a beam failure recovery request to be transmitted to a Fifth Generation (5G) NodeB (gNB) over a physical random access channel (PRACH), to process a response from the gNB, and to generate a physical uplink control channel (PUCCH) transmission to be transmitted to the gNB using a default spatial relation comprising a same spatial filter as used for the beam failure recovery request transmission over the PRACH. A beam failure recovery request is to be transmitted to a gNB after a random access response from the gNB, wherein the beam failure recovery request is to be transmitted via Message 1 or Message 3 to the gNB, and a response is to be received from the gNB via Message 2 or Message 4.
1. An apparatus of an access node for a fifth generation (5G) network, comprising:
one or more baseband processors configured to:
receive a first message that includes a beam failure recovery request from a user equipment (UE) over a physical random access channel (PRACH); and
receive a second different message in a physical uplink control channel (PUCCH) transmission or in a physical uplink shared channel (PUSCH) transmission from the UE using a spatial relation configuration comprising a same spatial filter as used for the beam failure recovery request transmission over the PRACH; and
a memory to store the beam failure recovery request.
2. The apparatus of claim 1 , wherein the beam failure recovery request comprises an indication when radio link quality for one or more resource configurations is worse than a threshold.
3. The apparatus of claim 1 , wherein PUCCH transmissions are received using the spatial relation configuration until a second different spatial relation configuration is activated by the one or more baseband processors.
4. The apparatus of claim 3 , wherein activation of the second spatial relation configuration comprises an activation command for PUCCH-Spatialrelationinfo.
5. The apparatus of claim 1 , wherein PUCCH transmissions are received using the spatial relation configuration until the one or more baseband processors receive PUCCH-Spatialrelationinfo for one or more PUCCH resources.
6. The apparatus of claim 1 , wherein the spatial relation configuration comprises a beam over which the PRACH is transmitted.
7. One or more non-transitory media having instructions thereon that, when executed by an apparatus of an access node for a fifth generation (5G) network, result in:
receiving a first message that includes a beam failure recovery request from a user equipment (UE) over a physical random access channel (PRACH); and
receiving a second different message in a physical uplink control channel (PUCCH) transmission or in a physical uplink shared channel (PUSCH) transmission from the UL using a spatial relation configuration comprising a same spatial filter as used for the beam failure recovery request transmission over the PRACH.
8. The one or more non-transitory media of claim 7 , wherein the beam failure recovery request comprises an indication when radio link quality for one or more resource configurations is worse than a threshold.
9. The one or more non-transitory media of claim 7 , wherein PUCCH transmissions are received using the spatial relation configuration until a second different spatial relation configuration is activated.
10. The one or more non-transitory media of claim 9 , wherein activation of the second spatial relation configuration comprises an activation command for PUCCH-Spatialrelationinfo.
11. The one or more non-transitory media of claim 7 , wherein PUCCH transmissions are received using the spatial relation configuration until PUCCH-Spatialrelationinfo for one or more PUCCH resources is transmitted.
12. The one or more non-transitory media of claim 7 , wherein the spatial relation configuration comprises a beam over which the PRACH is transmitted.
13. A processor of an access node for a fifth generation (5G) network configured to perform operations comprising:
receiving a first message that includes a beam failure recovery request from a user equipment (UE) over a physical random access channel (PRACH); and
receiving a second different message in a physical uplink control channel (PUCCH) transmission or in a physical shared channel (PUSCH) transmission from the UE using a spatial relation configuration comprising a same spatial filter as used for the beam failure recovery request transmission over the PRACH.
14. The processor of claim 13 , wherein the beam failure recovery request comprises an indication when radio link quality for one or more resource configurations is worse than a threshold.
15. The processor of claim 13 , wherein PUCCH transmissions are received using the spatial relation configuration until a second different spatial relation configuration is activated.
16. The processor of claim 15 , wherein activation of the second spatial relation configuration comprises an activation command for PUCCH-Spatialrelationinfo.
17. The processor of claim 13 , wherein PUCCH transmissions are received using the spatial relation configuration until PUCCH-Spatialrelationinfo for one or more PUCCH resources is transmitted.
18. The processor of claim 13 , wherein the spatial relation configuration comprises a beam over which the PRACH is transmitted.