CN-122001533-A - Communication method, system, storage medium and computer program product

CN122001533ACN 122001533 ACN122001533 ACN 122001533ACN-122001533-A

Abstract

Embodiments of the present application provide a communication method, system, storage medium and computer program product. The first device configures an indication message, the indication message indicates whether to execute autonomous retransmission of the acknowledgement mode data packet, the autonomous retransmission of the acknowledgement mode data packet is retransmission when the remaining time of the acknowledgement mode data packet is less than or equal to a retransmission threshold, and the indication message is sent to the second device. Therefore, the first device configures the indication message and sends the indication message, and the second device can execute autonomous retransmission operation based on the indication content of the indication message, so that autonomous retransmission is not needed or even supported in a scene where autonomous retransmission is not needed.

Inventors

CHEN MENGYING
ZHANG MINGZHU

Assignees

荣耀终端股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (20)

1. A method of communication, applied to a first device, the method comprising: Configuring an indication message; The indication message indicates whether to execute autonomous retransmission of the acknowledgement mode data packet, wherein the autonomous retransmission of the acknowledgement mode data packet is a retransmission when the remaining time of the acknowledgement mode data packet is less than or equal to a retransmission threshold; And sending the indication message.
2. The method of claim 1, wherein the configuration indication message comprises: The indication message is configured, and the indication message is used for indicating the identification of the indication granularity and/or corresponding retransmission control information, wherein the retransmission control information comprises an activation indication or a deactivation indication of autonomous retransmission of the indication granularity.
3. Method according to claim 2, characterized in that the indication message is used for indicating a plurality of said indication granularity identities, being location identities in the indication message, and/or corresponding retransmission control information.
4. The method of claim 2, wherein the indication granularity is an indication granularity configured with an autonomous retransmission threshold.
5. The method according to claim 2 or 4, wherein the configuration indication message comprises: The method comprises the steps of configuring a first indication message, wherein the first indication message is used for indicating an identification of the indication granularity and/or corresponding first retransmission control information, the first retransmission control comprises an activation indication or a deactivation indication of autonomous retransmission of a high-importance confirmation mode data packet of the indication granularity, and the high-importance confirmation mode data packet is determined based on a data packet set importance identification.
6. The method according to claim 2 or 4, wherein the configuration indication message comprises: And configuring a second indication message, wherein the second indication message is used for indicating at least one of the identification of the indication granularity, the corresponding retransmission control information and retransmission times indication information, and the retransmission times indication is used for indicating the retransmission times of the acknowledgement mode data packet of the indication granularity.
7. The method of claim 6, wherein the indication of the number of retransmissions comprises an indication of a single retransmission or an indication of multiple retransmissions, wherein the indication of a single retransmission is used to indicate that the retransmission of the acknowledged mode data packet is performed if the acknowledged mode data packet is configured with a retransmission threshold, wherein the indication of a single retransmission is used to indicate that the retransmission of the acknowledged mode data packet is performed from the time the second indication message is acquired until a first retransmission threshold is reached if the acknowledged mode data packet is configured with a multiple retransmission threshold, wherein the indication of multiple retransmissions is used to indicate that the retransmission of the acknowledged mode data packet is performed N times based on a first N retransmission threshold configured with the acknowledged mode data packet, and wherein the N is an integer greater than 1 and less than a number of configured thresholds.
8. The method according to claim 2 or 4, wherein the configuration indication message comprises: And configuring a third indication message, wherein the third indication message is used for indicating at least one of the identification of the indication granularity, the corresponding retransmission control information and the retransmission times information for retransmitting the confirmation mode data packet.
9. The method of claim 1, wherein the configuration indication message comprises: And configuring a fourth indication message, wherein the fourth indication message is used for indicating at least one of the identification of the indication granularity, corresponding retransmission control information and retransmission configuration parameters, and the retransmission configuration parameters are used for configuring the retransmission behavior of the indication granularity.
10. The method according to claim 9, wherein the retransmission configuration parameters comprise a first configuration parameter and/or a second configuration parameter, the first configuration parameter comprising a retransmission interval sequence number and a retransmission number, the second configuration parameter comprising a primary retransmission threshold sequence number and a retransmission number, the retransmission interval sequence number being used to indicate an interval between two retransmissions, and the primary retransmission threshold sequence number being used to indicate a time of a primary retransmission.
11. The method according to claim 2 or 4, wherein the configuration indication message comprises: And configuring a sixth indication message, wherein the sixth indication message is used for indicating the identification of the indication granularity and/or corresponding second retransmission control information, and the second retransmission control comprises an activation indication or a deactivation indication of autonomous retransmission through the main RLC.
12. The method according to claim 2 or 4, wherein the configuration indication message comprises: configuring a retransmission threshold and a first timer for RLC and/or PDCP; And configuring the indication message.
13. The method of claim 12, wherein if the indication message further carries retransmission configuration parameters of the indication granularity, the configuring the retransmission threshold and the first timer comprises: a plurality of time values and the first timer are configured, each time value indicating a retransmission time or a retransmission interval.
14. The method of claim 1, wherein the configuration indication message comprises: Configuring a control element (MAC CE) message of media access control, wherein the MAC CE message is used for indicating the identification of the indication granularity and/or corresponding third retransmission control information, the third retransmission control information comprises a first sub-configuration indication and a second sub-configuration indication, the first sub-configuration indication is used for indicating the discard activation or deactivation of the PSI-based acknowledgement mode data packet, and the second sub-configuration indication is used for indicating the autonomous retransmission activation or deactivation of the indication granularity.
15. A method of communication, for application to a second device, the method comprising: Receiving an indication message, wherein the indication message indicates whether to execute autonomous retransmission of the acknowledgement mode data packet, and the autonomous retransmission of the acknowledgement mode data packet is based on retransmission when the remaining time of the acknowledgement mode data packet is less than or equal to a retransmission threshold; Acquiring the indication content of the indication message; And executing autonomous retransmission of the data packet in the confirmation mode according to the indication content.
16. The method according to claim 15, wherein the indication message is used for indicating an identity of the indication granularity and/or corresponding retransmission control information, the retransmission control information comprising an activation indication or a deactivation indication of autonomous retransmissions of the indication granularity; Obtaining the indication content of the indication message, including: acquiring retransmission control information corresponding to the indication granularity from the indication message based on the identification of the indication granularity; And if the indication content is to execute the autonomous retransmission of the acknowledgement mode data packet, autonomously retransmitting the acknowledgement mode data packet, including: and if the retransmission control information is an activation instruction of autonomous retransmission of the indication granularity, autonomously retransmitting the acknowledgement mode data packet corresponding to the indication granularity.
17. The method of claim 15, wherein the indication message is configured to indicate a plurality of identifiers of the indication granularity and corresponding retransmission control information, the plurality of identifiers of the indication granularity being location identifiers in the indication message.
18. The method of claim 15, wherein the indication granularity is an indication granularity configured with an autonomous retransmission threshold.
19. The method according to claim 15 or 18, wherein the indication message is a first indication message, the first indication message being used for indicating an identity of the indication granularity and/or corresponding first retransmission control information; The first retransmission control information comprises an activation indication or a deactivation indication of autonomous retransmission of the high importance confirmation mode data packet with the indication granularity, wherein the high importance confirmation mode data packet is determined for the second equipment based on PSI; acquiring indication content of the indication message, wherein the indication content comprises first retransmission control information corresponding to the indication granularity from the indication message based on the identification of the indication granularity; And if the indication content is the automatic retransmission of the confirmation mode data packet, automatically retransmitting the confirmation mode data packet, wherein the automatic retransmission comprises the step of automatically retransmitting the high-importance confirmation mode data packet corresponding to the indication granularity if the first retransmission control information is the activation indication of the automatic retransmission of the high-importance confirmation mode data packet with the indication granularity.
20. The method according to claim 15 or 18, wherein the indication message is a second indication message, the second indication message being used for indicating at least one of an identification of the indication granularity, corresponding retransmission control information and retransmission number indication information; The retransmission times indication is used for indicating the retransmission times of retransmitting the confirmation mode data packet with the indication granularity, and the retransmission times indication comprises an indication of single retransmission and an indication of multiple retransmissions; Obtaining the indication content of the indication message, including: acquiring retransmission control information and retransmission times indication corresponding to the indication granularity from the second indication message based on the identification of the indication granularity; And if the indication content is to execute the autonomous retransmission of the acknowledgement mode data packet, autonomously retransmitting the acknowledgement mode data packet, including: if the retransmission control information is the activation indication of autonomous retransmission of the acknowledgement mode data packet with the indication granularity; if the retransmission times are single retransmission times, the acknowledgement mode data packet is configured with a retransmission threshold and is retransmitted once, and if the acknowledgement mode data packet is configured with a plurality of retransmission thresholds, the acknowledgement mode data packet is retransmitted once from the time of obtaining the second indication message to the time of reaching a first retransmission threshold; and if the retransmission times are the multiple retransmission times, retransmitting the N times of the confirmation mode data packet based on the first N times of retransmission threshold configured by the confirmation mode data packet.

Description

Communication method, system, storage medium and computer program product Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method, a system, a storage medium, and a computer program product. Background The acknowledged mode radio link control (Radio Link Control-Acknowledged Mode, RLC-AM) protocol is a radio link control protocol supporting retransmission mechanisms aimed at limiting data loss and providing high reliability transmission services. Negative acknowledgement/negative acknowledgement (ACK/NACK) mechanisms ensure the correct transmission of data packets, and are thus widely used in various communication scenarios. The RLC-AM protocol is implemented by an RLC entity, which includes a receiving side and a transmitting side. The sender is configured to split RLC service data units (SERVICE DATA units, SDUs) received from an upper layer into at least one acknowledged mode data packet (Acknowledged Mode ProtocolData Unit, AMD PDU) and to send the split protocol data units (ProtocolData Unit, PDU) to the receiver. The receiving side receives the PDU and transmits an ACK/NACK message to the transmitting side to confirm whether the data packet is successfully received (or the missing data packet is requested to be retransmitted). The sender decides whether retransmission of unacknowledged data packets is required according to the received ACK/NACK (acknowledgement/negative acknowledgement) message. Specifically, after receiving the NACK message, the sender retransmits the RLC SDU or RLC SDU fragment corresponding to the NACK as a retransmission object. The RLC-AM protocol is used to limit data loss, but the RLC-AM protocol relies on an ACK/NACK feedback mechanism to confirm the reception status of a data packet, i.e., there is feedback delay, and in addition, a retransmission mechanism in the RLC-AM protocol is triggered after receiving a NACK message. If the receiver fails to send the ACK/NACK message in time or the message is lost during transmission, the sender may not trigger retransmission in time, etc., resulting in that the existing RLC-AM protocol is not fully applicable to the short packet delay Budget (PACKET DELAY bridge, PDB). Where PDB refers to the longest time limit from successful receipt of a data packet from a sender to a receiver. At present, an autonomous retransmission scheme without status report is proposed, a retransmission time threshold is configured in advance according to the remaining PDB of the PDU, and autonomous retransmission is triggered based on the threshold to avoid waiting for the extension time of the status report feedback. However, in the PDU transmission process, there may be a scenario that autonomous retransmission is not required or even not supported, which not only increases network load, but also causes problems such as network resource waste or network congestion. Disclosure of Invention The embodiment of the application provides a communication method, a system, a storage medium and a computer program product, which can be applied to a scene without even supporting autonomous retransmission without waiting for the extension time of state feedback, and is beneficial to reducing network load and improving network congestion. The specific technical scheme is as follows. In a first aspect, an embodiment of the present application provides a communication method, where the method may be performed by a network device, or may also be performed by a component (such as a circuit, a chip, or a chip system) configured in the network device, or may be implemented by a logic module or software that can implement all or part of the functions of the network device. The application is not limited in this regard. The following describes a network device as an example. The method comprises the steps of configuring an indication message, indicating whether to execute autonomous retransmission of the confirmation mode data packet or not by the indication message, wherein the autonomous retransmission of the confirmation mode data packet is retransmission when the residual time of the confirmation mode data packet is smaller than or equal to a retransmission threshold, and sending the indication message. In summary, in the embodiment of the present application, the indication message is configured by the network device, where the indication message indicates whether to perform autonomous retransmission of the acknowledged mode data packet, the network device sends the indication message, and the terminal may perform autonomous retransmission operation based on the indication content of the indication message. The method can control the autonomous retransmission in a scene without or even supporting the autonomous retransmission on the basis of the autonomous retransmission based on the retransmission threshold. In a specific implementation, the indication message is used for indicating an ident