Abstract
A system for converging fifth generation (5G) communication systems for supporting higher data rates beyond fourth generation (4G) systems with a technology for Internet of things (IoT) is provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A terminal and base station are provided for performing beam failure detection and a recovery procedure using first and second configuration information for beam failure recovery (BFR) and if failure is detected, initiating a first random access (RA) procedure and if second configuration information is received while the first RA procedure is ongoing, terminating the first RA procedure and initiating a second RA procedure based on the second configuration information.
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US2020052768A1 | 5G | 13/03/2020 | ISLD-202003-018 | SAMSUNG |
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US2020053557A1 | 5G | 13/03/2020 | ISLD-202003-018 | SAMSUNG |
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WO2020032586A1 | 5G | 13/03/2020 | ISLD-202003-018 | SAMSUNG |
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Claim
1. A method by a terminal for performing a beam failure detection and recovery procedure, the method comprising:
receiving, from a base station, first configuration information for beam failure recovery (BFR);
when beam failure is detected, initiating a first random access (RA) procedure for BFR based on the first configuration information for BFR; and
when second configuration information including a new configuration for BFR is received while the first RA procedure for BFR is ongoing, terminating the first RA procedure for BFR and initiating a second RA procedure for BFR based on the new configuration for BFR.
2. The method of claim 1, wherein the first configuration information for BFR comprises information on contention-free random access channel (RACH) resources for BFR request.
3. The method of claim 1, wherein the second configuration information for BFR comprises new information on contention-free random access channel (RACH) resources for BFR request.
4. The method of claim 3, wherein the initiating of the second RA procedure comprises:
selecting RA resources for a second BFR request based on the new information; and
transmitting, to the base station, the second BFR request based on the selected RA resources.
5. The method of claim 1,
wherein the beam failure is detected on a first cell, and
wherein the second configuration information for BFR is received from a second cell.
6. The method of claim 1, wherein when second configuration information for BFR is not received while the first RA procedure is ongoing, maintaining the first RA procedure.
7. A method by a base station for performing a beam failure recovery (BFR) procedure, the method comprising:
transmitting, to a terminal, first configuration information for BFR;
transmitting, to the terminal, second configuration information including a new configuration for BFR; and
receiving, from the terminal, a BFR request,
wherein when the second configuration information for BFR is transmitted while the terminal performs a first random access (RA) procedure for BFR based on the first configuration information for BFR, the request is based on a second RA procedure for BFR using the new configuration for BFR.
8. The method of claim 7, wherein the second configuration information for BFR comprises information on contention-free random access channel (RACH) resources for the BFR request.
9. The method of claim 7,
wherein the second configuration information for BFR is used to configure the BFR on a first cell, and
wherein the second configuration information for BFR is received from a second cell.
10. A terminal in a communication system, the terminal comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
control the transceiver to receive, from a base station, first configuration information for beam failure recovery (BFR),
when beam failure is detected, initiate a first random access (RA) procedure for BFR based on the first configuration information for BFR, and
when second configuration information including a new configuration for BFR is received while the first RA procedure for BFR is ongoing, terminate the first RA procedure for BFR and initiate a second RA procedure for BFR based on the new configuration for BFR.
11. The terminal of claim 10, wherein the first configuration information for BFR comprises information on contention-free random access channel (RACH) resources for BFR request.
12. The terminal of claim 10, wherein the second configuration information for BFR comprises new information on contention-free random access channel (RACH) resources for BFR request.
13. The terminal of claim 12, wherein the at least one processor is further configured to:
select RA resources for a second BFR request based on the new information, and
control the transceiver to transmit, to the base station, the second BFR request based on the selected RA resources.
14. The terminal of claim 10,
wherein the beam failure is detected on a first cell, and
wherein the second configuration information for BFR is received from a second cell.
15. The terminal of claim 10, wherein when second configuration information for BFR is not received while the first RA procedure is ongoing, maintaining the first RA procedure.
16. A base station in a communication system, the base station comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
control the transceiver to transmit, to a terminal, first configuration information for beam failure recovery (BFR),
control the transceiver to transmit, to the terminal, second configuration information including a new configuration for BFR, and
control the transceiver to receive, from the terminal, a BFR request,
wherein when the second configuration information for BFR is transmitted while the terminal performs a first random access (RA) procedure for BFR based on the first configuration information for BFR, the request is based on a second RA procedure for BFR using the new configuration for BFR.
17. The base station of claim 16, wherein the second configuration information for BFR comprises information on contention-free random access channel (RACH) resources for the BFR request.
18. The base station of claim 16,
wherein the second configuration information for BFR is used to configure the BFR on a first cell, and
wherein the second configuration information for BFR is received from a second cell.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.