Granted Patent B2

US 12,432,027 · App. 17/869,554 · Granted Sep 30, 2025

Inventors: Chenchen Zhang (Guangdong, CN); Peng Hao (Guangdong, CN); Junfeng Zhang (Guangdong, CN); Wei Gou (Guangdong, CN)

Assignee: ZTE Corporation

H04L5/0048H04W24/08H04W72/1273

Abstract

Claims (44)

1. A method for wireless communication, comprising:

receiving, by a terminal, a first message from a wireless communication node for triggering feedback messages for one or more terminals;

determining, by the terminal, whether the terminal is configured with one of a first triggering type or a second triggering type for feedback of channel state information based on receiving an offset from the wireless communication node that is indicative of a first field or a first starting bit to read in the first message of one or more fields in the first message;

performing, by the terminal, a measurement relating to a channel status; and

transmitting, by the terminal, a feedback message to the wireless communication node that includes information relating to the channel status based on determining that the one of the first triggering type or the second triggering type with which the terminal is configured is satisfied by the first message,

wherein the information relating to the channel status includes one of a first type of channel state information (CSI) feedback that is measured based on any of an aperiodic CSI-RS resource, periodic CSI-RS resource, or semi-persistent CSI-RS resource or a second type of CSI feedback that is measured based on any of a physical downlink shared channel (PDSCH), a periodic CSI-RS resource, or a semi-persistent CSI-RS resource, wherein the information includes (i) the first type of CSI feedback according to the terminal being configured with the first triggering type or (ii) the second type of CSI feedback according to the terminal being configured with the second triggering type, and

wherein, in case of the terminal being configured with the second triggering type, the second triggering type is satisfied by the first message scheduling or activating a downlink transmission and the terminal unsuccessfully decoding the downlink transmission.

2. The method of claim 1 , wherein the terminal determines whether the first message satisfies the one of the first triggering type or the second triggering type based on any of a channel state information (CSI) request field, a cyclic redundancy check (CRC) scrambled by a first Radio Network Temporary Identifier (RNTI), a physical uplink control channel (PUCCH) resource indicator field, a new data indicator field, a redundancy version field, or a priority indicator field included in the first message.

3. The method of claim 1 , wherein the first message includes any of a field that indicates a triggering type in the first message, a field in the first message that indicates a status of triggering the second type of information relating to the channel status, or a field in the first message that indicates a status of triggering the first type of information relating to the channel status.

4. The method of claim 1 , further comprising:

determining, by the terminal, whether the first message includes an indication to trigger any of the first type of CSI feedback or the second type of CSI feedback.

5. The method of claim 1 , wherein the terminal unsuccessfully decoding the downlink transmission results in a negative acknowledgement (NACK), and wherein the downlink transmission is a transmission in PDSCH scheduled or activated by the first message.

6. The method of claim 1 , further comprising:

determining, by the terminal, that a first indication field of the first message includes a bit string with any bit reading a non-zero value, wherein the bit string with any bit reading a non-zero value of the first indication field is indicative of the first triggering type or the second triggering type, wherein the first indication field triggers feedback of the first type of information relating to the channel status or the second type of information relating to the channel status.

7. The method of claim 6 , further comprising:

receiving, by the terminal, a radio resource control (RRC) message from the wireless communication node, wherein the first triggering type or the second triggering type is configured by the wireless communication node via the RRC message.

8. The method of claim 1 , wherein the first message is a group-common physical downlink control channel (PDCCH) downlink control information.

9. The method of claim 1 , wherein the second triggering type is satisfied further based on a final decoding result of a number of repetitions of the downlink transmission.

10. The method of claim 9 , wherein the feedback message is transmitted at a time unit when a last repetition of the downlink transmission is received.

11. The method of claim 1 , wherein the terminal determines whether the one of the first triggering type or the second triggering type is satisfied based on a priority indicated for the first message.

12. The method of claim 1 , wherein the field indicated by the offset configures the first triggering type for the terminal based on having a value within a first range or configured the second triggering type for the terminal based on the value being within a second range.

13. A method for wireless communication, comprising:

configuring, by a wireless communication node, a terminal with one of a first triggering type or a second triggering type for feedback of channel state information;

transmitting, by a wireless communication node, a first message for triggering feedback messages for one or more terminals including the terminal, wherein the wireless communication node configures the terminal with the one of the first triggering type or the second triggering type based on transmitting an offset to the terminal that is indicative of a first field or a first starting bit to read in the first message of one or more fields in the first message; and

receiving, by the wireless communication node, the feedback message from the terminal based on the terminal determining that the one of the first triggering type or the second triggering type is satisfied by the first message, the feedback message including information relating to a channel status,

wherein the information relating to the channel status includes one of a first type of CSI feedback that is measured based on any of an aperiodic CSI-RS resource, periodic CSI-RS resource, or semi-persistent CSI-RS resource or a second type of channel state information that is measured based on any of a physical downlink shared channel (PDSCH), a periodic CSI-RS resource, or a semi-persistent CSI-RS resource, wherein the information includes (i) the first type of channel state information according to the terminal being configured with the first triggering type or (ii) the second type of channel state information according to the terminal being configured with the second triggering type, and

wherein, in case of the terminal being configured with the second triggering type, the second triggering type is satisfied by the first message scheduling or activating a downlink transmission and the terminal unsuccessfully decoding the downlink transmission.

14. The method of claim 13 , wherein the terminal determines whether the one of the first triggering type or the second triggering type is satisfied based on any of a channel state information (CSI) request field, a cyclic redundancy check (CRC) scrambled by a first Radio Network Temporary Identifier (RNTI), a physical uplink control channel (PUCCH) resource indicator field, a new data indicator field, a redundancy version field, or a priority indicator field included in the first message.

15. The method of claim 13 , wherein a first indication field of the first message includes a bit string with any bit reading a non-zero value that is indicative of the first triggering type or the second triggering type, wherein the first indication field triggers the first type of CSI feedback or the second type of CSI feedback.

16. The method of claim 13 , further comprising:

transmitting, by the wireless communication node, a radio resource control (RRC) message to the terminal, wherein the one of the first triggering type or the second triggering type is configured by the wireless communication node via the RRC message.

17. An apparatus for wireless communication comprising a processor and a memory storing instructions that, when executed by the processor, cause the apparatus to:

receive a first message from a wireless communication node for triggering feedback messages for one or more terminals;

determining whether the apparatus is configured with one of a first triggering type or a second triggering type for feedback of channel state information based on receiving an offset from the wireless communication node that is indicative of a first field or a first starting bit to read in the first message of one or more fields in the first message;

perform a measurement relating to a channel status; and

transmit a feedback message to the wireless communication node that includes information relating to the channel status based on determining that the one of the first triggering type or the second triggering type with which the terminal is configured is satisfied by the first message,

wherein the information relating to the channel status includes one of a first type of CSI feedback that is measured based on any of an aperiodic CSI-RS resource, periodic CSI-RS resource, or semi-persistent CSI-RS resource or a second type of channel state information that is measured based on any of a physical downlink shared channel (PDSCH), a periodic CSI-RS resource, or a semi-persistent CSI-RS resource, wherein the information includes (i) the first type of CSI feedback according to the terminal being configured with the first triggering type or (ii) the second type of CSI feedback according to the terminal being configured with the second triggering type, and

wherein, in case of the terminal being configured with the second triggering type, the second triggering type is satisfied by the first message scheduling or activating a downlink transmission and the terminal unsuccessfully decoding the downlink transmission.

18. An apparatus for wireless communication comprising a processor and a memory storing instructions that, when executed by the processor, cause the apparatus to:

configure a terminal with one of a first triggering type or a second triggering type for feedback of channel state information;

transmit a first message for triggering feedback messages for one or more terminals including the terminal, wherein the apparatus configures the terminal with the one of the first triggering type or the second triggering type based on transmitting an offset to the terminal that is indicative of a first field or a first starting bit to read in the first message of one or more fields in the first message; and

receive the feedback message from the terminal based on the terminal determining that the one of the first triggering type or the second triggering type is satisfied by the first message, the feedback message including information relating to a channel status,

wherein the information relating to the channel status includes one of a first type of CSI feedback that is measured based on any of an aperiodic CSI-RS resource, periodic CSI-RS resource, or semi-persistent CSI-RS resource or a second type of channel state information that is measured based on any of a physical downlink shared channel (PDSCH), a periodic CSI-RS resource, or semi-persistent CSI-RS resource, wherein the information includes (i) the first type of CSI feedback according to the terminal being configured with the first triggering type or (ii) the second type of CSI feedback according to the terminal being configured with the second triggering type, and

wherein, in case of the terminal being configured with the second triggering type, the second triggering type is satisfied by the first message scheduling or activating a downlink transmission and the terminal unsuccessfully decoding the downlink transmission.

Assignments (1)

Continuity (2)

References Cited (43)