Radio link failure handling in high-frequency band networks
View Patent ↗Embodiments described herein relate generally to a communication between a user equipment (UE) and an evolved nodeB (eNodeB) communicating over a 5G link. Data rate throughput may be increased when, after a 5G channel blockage occurs, the UE may wait a determined amount of time to discover if the channel has opened before initiating a radio link failure (“RLF”) and RLF recovery procedure.
1. A user equipment, “UE” apparatus, the UE apparatus comprising baseband circuitry including:
memory circuitry to include a retransmission threshold value; timer circuitry to be set with a timer expiration value; and
control circuitry, coupled with the memory circuitry and the timer circuitry, the control circuitry to manage a link blockage, wherein the control circuitry is to:
upon retransmission of a signal a retransmission threshold value number of times:
maintain a radio resource control, “RRC”, link;
start the timer circuitry to expire at the timer expiration value;
while the timer circuitry has not expired, attempt retransmission of the signal;
if one of the attempted retransmissions of the signal is successful, then stop the timer circuitry; and
if no attempted retransmissions of the signal are successful and the timer has expired, then:
determine that a radio link failure, “RLF”, has occurred; and
perform RLF recovery procedures to establish an RRC connection.
2. The UE apparatus of claim 1 , wherein the timer expiration value is configured by an evolved NodeB, “eNodeB”, or fixed in a specification.
3. The UE apparatus of claim 1 , wherein the signal is to be transmitted on a 5G network.
4. The UE apparatus of claim 3 , wherein upon retransmission of the signal the retransmission threshold value number of times, the control circuitry is further to begin transmission of the signal on a long term evolution, “LTE”, network.
5. The UE apparatus of claim 1 , wherein the signal is a portion of a data file to be transferred from the UE.
6. The UE apparatus of claim 1 , wherein the signal is a packet.
7. The UE apparatus of claim 1 , wherein the retransmission threshold value number is configured by an evolved NodeB, “eNodeB”, or fixed in a specification.
8. One or more non-transitory computer-readable media comprising instructions that cause a computing device, in response to execution of the instructions by the computing device, to:
upon detection of a link blockage after transmission of a signal:
start a timer to expire at a timer expiration value;
while the timer has not expired: stop retransmission of the signal; and
if the timer is expired or if the link blockage is over, retransmit the signal; and
if a number of retransmissions has exceeded a retransmission threshold, then:
determine, by the computing device, a radio link failure, “RLF”, has occurred; and
perform, by the computing device, RLF recovery procedures to establish a radio resource control, “RRC”, link.
9. The computer readable media of claim 8 , wherein the signal is a packet.
10. The computer readable media of claim 8 , wherein the timer expiration value is configured by an evolved nodeB, “eNodeB”, or fixed in a specification.
11. The computer readable media of claim 8 , wherein the signal is to be transmitted on a 5G network.
12. The computer readable media of claim 11 , wherein upon detection of a link blockage after transmission of a signal, the computing device is further to begin transmission of the signal on a long term evolution, “LTE”, network.
13. The computer readable media of claim 8 , wherein the signal is a portion of a data file to be transferred from the UE.
14. The computer readable media of claim 8 , wherein the retransmission threshold value number is configured by an evolved NodeB, “eNodeB”, or fixed in a specification.
15. An apparatus for managing a link blockage, the apparatus comprising:
means for: starting or restarting a timer to expire at a timer expiration value if a radio link control, “RLC”, retransmission is detected, indicating the link blockage; and stopping the timer if a link recovery has occurred or an RLC status report indicating that all acknowledgments, “ACKs”, have been received has occurred, indicating an end of the link blockage; and
means for starting RLC retransmissions if the timer is stopped or expired.
16. The apparatus of claim 15 , wherein an RLC transmission trigger is based on a negative acknowledgement, “NACK”, in an RLC status report.
17. The apparatus of claim 15 , wherein the timer expiration value is configured by an evolved Node8, “eNodeB”, or fixed in a specification.
18. The apparatus of claim 15 , wherein the transmission is on a 5G network.
19. The apparatus of claim 15 , wherein the transmission is on a long term evolution, “LTE”, network.
20. The apparatus of claim 15 , wherein if the timer circuitry is stopped or expired, start RLC retransmissions on a long term evolution, “LTE”, network.