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 system is provided for determining system information validity by acquiring and storing a first system information block and other system information, including information on a public land mobile network (PLMN) identity and a value tag, and determining whether the stored system information is valid for the cell. As another example, 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 performed by a terminal for determining system information validity, the method comprising:
receiving a first system information block 1 (SIB1) including a first public land mobile network (PLMN) identity list and at least one first value tag for at least one system information block (SIB);
receiving an SIB based on scheduling information for the SIB in the first SIB1;
storing at least part of the first SIB1 and the SIB, wherein the stored at least part of the first SIB1 includes a first entry of the first PLMN identity list and a value tag for the SIB in the first SIB1;
receiving, from a cell, a second SIB1 including a second PLMN identity list and at least one second value tag for at least one SIB; and
determining that the stored SIB is valid for the cell based on:
a first entry of the second PLMN identity list in the second SIB1 being identical to the stored first entry, and
a value tag for the SIB in the second SIB1 being identical to the stored value tag.
2. The method of claim 1, wherein the stored at least part of the first SIB1 further comprises:
area scope information indicating whether the SIB is area specific or cell specific, and
a system information area identity of the SIB.
3. The method of claim 1, wherein the stored SIB is valid for the cell in case that:
the stored area scope information indicates that the SIB is area specific, and
area scope information, the first entry of the second PLMN identity list, a system information area identity, and the value tag for the SIB in the second SIB1 are identical to the stored area scope information, the stored first entry, the stored system information area identity, and the stored value tag.
4. The method of claim 2,
wherein the area scope information, the value tag, and the system information area identity are received from the scheduling information in the first SIB1 or the second SIB1.
5. The method of claim 1, further comprising:
in case that the stored SIB is not valid for the cell, receiving, from the cell, the SIB based on scheduling information for the SIB in the second SIB1.
6. The method of claim 1, further comprising:
performing a cell reselection based on the SIB,
wherein in case that the cell is a reselected cell, the second SIB1 is received from the cell after the cell reselection.
7. A terminal in a communication system, the terminal comprising:
a transceiver; and
at least one processor configured to:
receive, via the transceiver, a first system information block 1 (SIB1) including a first public land mobile network (PLMN) identity list and at least one first value tag for at least one system information block (SIB),
receive, via the transceiver, an SIB based on scheduling information for the SIB in the first SIB1,
store at least part of the first SIB1 and the SIB, wherein the stored at least part of the first SIB1 includes a first entry of the first PLMN identity list and a value tag for the SIB in the first SIB1,
receive, from a cell via the transceiver, a second SIB1 including a second PLMN identity list and at least one second value tag for at least one SIB, and
determine that the stored SIB is valid for the cell based on:
a first entry of the second PLMN identity list in the second SIB1 being identical to the stored first entry, and
a value tag for the SIB in the second SIB1 being identical to the stored value tag.
8. The terminal of claim 7, wherein the at least one processor is further configured to store area scope information indicating whether the SIB is area specific or cell specific, and a system information area identity of the SIB.
9. The terminal of claim 8, wherein the at least one processor is further configured to determine that the stored SIB is valid for the cell in case that:
the stored area scope information indicates that the SIB is area specific, and
area scope information, the first entry of the second PLMN identity list, a system information area identity, and the value tag for the SIB in the second SIB1 are identical to the stored area scope information, the stored first entry, the stored system information area identity, and the stored value tag.
10. The terminal of claim 8, wherein the at least one processor is further configured to receive the area scope information, the value tag, and the system information area identity from the scheduling information in the first SIB1 or the second SIB1.
11. The terminal of claim 7,
wherein the at least one processor is further configured to:
perform a cell reselection based on the SIB, and
in case that the cell is a reselected cell, receive, from the cell via the transceiver, the second SIB1 after the cell reselection.
12. The terminal of claim 7, wherein the at least one processor is further configured to receive, from the cell via the transceiver, the SIB based on scheduling information for the SIB in the second SIB1 in case that the stored SIB is not valid for the 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.