Granted Patent B2

US 12,568,531 · App. 17/290,515 · Granted Mar 3, 2026

Inventors: Kun Liu (Guangdong, CN); Bo Dai (Guangdong, CN); Xiubin Sha (Guangdong, CN); Huiying Fang (Guangdong, CN); Weiwei Yang (Guangdong, CN); Luanjian Bian (Guangdong, CN); Youjun Hu (Guangdong, CN)

Assignee: ZTE CORPORATION

H04W74/0833H04W74/0838

Abstract

Claims (55)

1 . A message sending method, comprising:

selecting, by a terminal, a narrowband physical random access channel (NPRACH) resource to send a preamble;

determining, by the terminal, a type of a message 3 indicated by the NPRACH resource selected by the terminal;

sending, by the terminal, first information in the message 3 in a random access procedure, wherein the first information comprises channel quality information; and

determining, by the terminal, second information according to the message 3;

wherein determining the type of the message 3 indicated by the NPRACH resource selected by the terminal comprises:

determining, by the terminal, the type of the message 3 is a type 1 in a case where the message 3 carries uplink data and independently allocated NPRACH resources; and

determining, by the terminal, the type of the message 3 is a type 2 in a case where the message 3 does not carry the uplink data and carries the independently allocated NPRACH resources;

wherein in a case where the message 3 is the type 1, determining, by the terminal, the second information according to the message 3 comprises:

determining the second information comprises one of: a number of retransmission times of a control channel, an aggregation level of a control channel, a number of retransmission times of a downlink data channel, or a carrier corresponding to the channel quality information; and

in a case where the message 3 is the type 2, determining, by the terminal, the second information according to the message 3 comprises:

determining, by the terminal, the second information according to a format of the message 3, wherein in a case where the format of the message 3 is a radio resource control (RRC) connection resume request or an RRC connection reestablishment request, the second information at least comprises one of: a number of retransmission times of a control channel, an aggregation level of a control channel, a number of retransmission times of a downlink data channel, or a carrier corresponding to the channel quality information.

2 . The method of claim 1 , wherein the carrier corresponding to the channel quality information is configured by a base station, the carrier corresponding to the channel quality information is a carrier configured by default, or the carrier corresponding to the channel quality information is selected according to a first principle.

3 . The method of claim 2 , wherein the carrier corresponding to the channel quality information being selected according to the first principle, comprises:

selecting M carriers from a first set as the carrier corresponding to the channel quality information, wherein the first set comprises at least one carrier, and the at least one carrier in the first set satisfies: the at least one carrier in the first set is a carrier among carriers in a second set and with channel quality information greater than or equal to a threshold, wherein the threshold is configured by the base station or is configured by default, and M is a positive integer.

4 . The method of claim 3 , wherein the carriers in the second set are configured by the base station or determined by the terminal.

5 . The method of claim 1 , wherein the carrier corresponding to the channel quality information is a carrier used for transmitting random access response information.

6 . The method of claim 1 , further comprising:

sending, by a terminal, third information in a message 3 in a random access procedure, wherein the third information comprises channel quality information, and the random access procedure is a contention-based random access procedure triggered by a physical downlink control channel (PDCCH) order.

7 . The method of claim 6 , wherein the PDCCH order comprises at least one of:

indication information for the third information enabling or disabling a reporting function of the channel quality information;

a type of the channel quality information; or

a carrier or a carrier index corresponding to the channel quality information.

8 . The method of claim 7 , wherein the carrier corresponding to the channel quality information is a carrier where the PDCCH order is located upon sending the PDCCH order.

9 . The method of claim 7 , wherein the carrier or the carrier index corresponding to the channel quality information is an interval between the carrier index corresponding to the channel quality information and a carrier index where the PDCCH order is located upon sending the PDCCH order.

10 . A message sending device, applied to a terminal, comprising:

a processor and a memory storing processor-executable instructions which, when executed by the processor, are configured to implement the method of claim 1 .

11 . A message configuration method, comprising:

configuring, by a base station, resources occupied by a narrowband physical random access channel (NPRACH);

triggering, by the base station, a random access procedure through a type of channel quality information reported in a message 3;

receiving, by the base station, first information in the message 3 in the random access procedure, wherein the first information comprises channel quality information; and

configuring, by the base station, a carrier corresponding to the channel quality information in the first information,

wherein the type of the channel quality information reported in the message 3 is determined by:

the type of the message 3 is determined as a type 1 in a case where the message 3 carries uplink data and independently allocated NPRACH resources; and

the type of the message 3 is determined as a type 2 in a case where the message 3 does not carry the uplink data and carries the independently allocated NPRACH resources.

12 . The method of claim 1 , further comprising:

sending, by a terminal, fourth information in a message 3 in a random access procedure, wherein the fourth information comprises channel quality information, the terminal selects a first transport block size from transport block sizes supported by the message 3, and the first transport block size is used for a message 3 that carries the channel quality information.

13 . The method of claim 12 , wherein the transport block sizes supported by the message 3 further comprise a second transport block size, wherein the second transport block size is used for a message 3 that does not carry the channel quality information.

14 . The method of claim 12 , wherein in a case where a first condition is satisfied, a type of the channel quality information comprised in the fourth information is a channel quality indicator (CQI), wherein the first condition comprises that a number of retransmission times of a control channel is less than or equal to a threshold:

wherein the threshold is configured by a base station and sent to the terminal, or is configured by default.

15 . The method of claim 12 , wherein in a case where a second condition is satisfied, a type of the channel quality information comprised in the fourth information comprises one of:

a CQI and a number of retransmission times of a control channel;

a CQI and an aggregation level of a control channel;

a CQI, a number of retransmission times of a control channel, and an aggregation level of the control channel;

a CQI and a number of retransmission times of a downlink data channel;

a number of retransmission times of a control channel;

an aggregation level of a control channel;

a number of retransmission times of a control channel and an aggregation level of the control channel; or

a number of retransmission times of a downlink data channel;

wherein the second condition comprises that the number of retransmission times of the control channel is greater than or equal to a threshold;

wherein the threshold is configured by a base station and sent to the terminal, or is configured by default.

16 . The method of claim 11 , further comprising:

configuring, by a base station, a transport block size for a message 3 in a random access procedure, wherein the transport block size comprises a first transport block size and a second transport block size, the first transport block size is used for a message 3 that carries channel quality information, and the second transport block size is used for a message 3 that does not carry the channel quality information.

17 . A message configuration device, applied to a base station, comprising:

a processor and a memory storing processor-executable instructions which, when executed by the processor, are configured to implement the method of claim 11 .

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (26)