Capability reporting method and modem chip performing the same

Inventors: Lung-Wen Chen (Hsinchu City, TW); Tsung-Ming Lee (Hsinchu City, TW)

Assignee: MEDIATEK INC.

H04W8/22

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Quick Facts

Patent No.: US 12713229
App. No.: 18/492,854
Granted: Aug 18, 2026
Kind: B2

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Abstract

A capability reporting method and a modem chip performing the same are provided. The capability reporting method includes the following steps. A capability enquiry message is received from a network. A plurality of weightings for a serving Radio Access Technology (RAT) and at least one non-serving RAT are determined. The weighting for the at least one non-serving RAT is downgraded. A plurality of capability information for the serving RAT and the non-serving RAT are composed according to the weightings. The size of the capability information for the at least one non-serving RAT is reduced. The capability information for the serving RAT and the capability information for the at least one non-serving RAT are combined to obtain a capability report message. The capability report message is replied to the network.

Claims (34)

1 . A capability reporting method for a wireless communication device, comprising:

receiving a capability enquiry message from a network;

determining a plurality of weightings for a serving Radio Access Technology (RAT) and at least one non-serving RAT, wherein the weighting for the at least one non-serving RAT is downgraded;

composing a plurality of capability information for the serving RAT and the at least one non-serving RAT according to the weightings, wherein size of the capability information for the at least one non-serving RAT is reduced;

combining the capability information for the serving RAT and the capability information for the at least one non-serving RAT to obtain a capability report message; and

replying the capability report message to the network;

wherein if the serving RAT for the wireless communication device is changed, determining the weightings according to the serving RAT and the at least one non-serving RAT is performed again to update the weightings.

2 . The capability reporting method for the wireless communication device according to claim 1 , wherein the capability information for the serving RAT occupies major size of the capability report message.

3 . The capability reporting method for the wireless communication device according to claim 1 , wherein a size of the capability information for the serving RAT is larger than or equal to the size of the capability information for the at least one non-serving RAT.

4 . The capability reporting method for the wireless communication device according to claim 1 , wherein if the serving RAT for the wireless communication device is changed from Long-Term Evolution (LTE) to New Radio (NR), a size of the capability information for LTE is decreased and a size of the capability information for NR is increased.

5 . The capability reporting method for the wireless communication device according to claim 1 , wherein if the serving RAT for the wireless communication device is changed from New Radio (NR) to Long-Term Evolution (LTE), a size of the capability information for LTE is increased and a size of the capability information for NR is decreased.

6 . The capability reporting method for the wireless communication device according to claim 1 , wherein only part of a plurality band combinations for the at least one non-serving RAT are recorded in the capability report message.

7 . A capability reporting method for a wireless communication device, comprising: receiving a capability enquiry message from a network;

determining a plurality of weightings for a serving Radio Access Technology (RAT) and at least one non-serving RAT, wherein the weighting for the at least one non-serving RAT is downgraded;

obtaining a capability message report from the serving RAT and the at least one non-serving RAT to obtain a capability report message; and

replying the capability report message with dynamic distribution for the serving Radio Access Technology (RAT) and the at least one non-serving RAT to the network;

wherein if the serving RAT for the wireless communication device is changed, a distribution of the capability report message for the serving RAT and the at least one non-serving RAT is changed.

8 . The capability reporting method for the wireless communication device according to claim 7 , wherein a capability information for the serving RAT occupies major size of the capability report message.

9 . The capability reporting method for the wireless communication device according to claim 7 , wherein a size of the capability information for the serving RAT is larger than or equal to a size of the capability information for the at least one non-serving RAT.

10 . The capability reporting method for the wireless communication device according to claim 7 , wherein if the serving RAT for the wireless communication device is changed from Long-Term Evolution (LTE) to New Radio (NR), a size of the capability information for LTE is decreased and a size of the capability information for NR is increased.

11 . The capability reporting method for the wireless communication device according to claim 7 , wherein if the serving RAT for the wireless communication device is changed from New Radio (NR) to Long-Term Evolution (LTE), a size of the capability information for LTE is increased and a size of the capability information for NR is decreased.

12 . The capability reporting method for the wireless communication device according to claim 7 , wherein only part of a plurality band combinations for the at least one non-serving RAT are recorded in the capability report message.

13 . A modem chip in a wireless communication device, wherein the modem chip is configured to execute a capability reporting method, comprising:

receiving a capability enquiry message from a network;

determining a plurality of weightings for a serving Radio Access Technology (RAT) and at least one non-serving RAT, wherein the weighting for the at least one non-serving RAT is downgraded;

obtaining a capability message report from the serving RAT and the at least one non-serving RAT to obtain a capability report message; and

replying the capability report message with dynamic distribution for the serving Radio Access Technology (RAT) and the at least one non-serving RAT to the network;

wherein if the serving RAT for the wireless communication device is changed, a distribution of the capability report message for the serving RAT and the at least one non-serving RAT is changed.

14 . The modem chip in the wireless communication device according to claim 13 , wherein a capability information for the serving RAT occupies major size of the capability report message.

15 . The modem chip in the wireless communication device according to claim 13 , wherein a size of the capability information for the serving RAT is larger than or equal to a size of the capability information for the at least one non-serving RAT.

16 . The modem chip in the wireless communication device according to claim 13 , wherein if the serving RAT for the wireless communication device is changed from Long-Term Evolution (LTE) to New Radio (NR), a size of the capability information for LTE is decreased and a size of the capability information for NR is increased.

17 . The modem chip in the wireless communication device according to claim 13 , wherein if the serving RAT for the wireless communication device is changed from New Radio (NR) to Long-Term Evolution (LTE), a size of the capability information for LTE is increased and a size of the capability information for NR is decreased.