阅读说明：本技术 一种多播传输控制方法以及相关设备 (Multicast transmission control method and related equipment ) 是由 徐小英 曾清海 黄曲芳 酉春华 于 2019-09-23 设计创作，主要内容包括：本申请实施例提供一种多播传输控制方法,终端侧设备通过对所述接收的多播业务的反馈,使得接入网侧设备能够获知所发送的多播业务的情况,从而有利于优化所述多播业务的传输。(The embodiment of the application provides a multicast transmission control method, and terminal side equipment enables access network side equipment to acquire the condition of the transmitted multicast service through the feedback of the received multicast service, so that the optimization of the transmission of the multicast service is facilitated.)

A multicast transmission control method, comprising:

terminal side equipment receives multicast service;

and the terminal side equipment sends feedback information of the multicast service to access network side equipment, wherein the feedback information indicates that the multicast service is successfully received or the multicast service is unsuccessfully received.

The method of claim 1, wherein in case of failure to receive the multicast service, the feedback information comprises at least one of: receiving a failure event of the multicast service, the number of data packets failed to receive in the multicast service, an identifier of a Protocol Data Unit (PDU) session to which the multicast service belongs, a multicast mode and/or a unicast mode used for receiving the multicast service, and requesting the unicast mode when the multicast mode fails to receive the multicast service.

The method of claim 1 or 2, wherein the feedback information indicates a failure to receive the multicast service when one of the following failure events is met:

receiving failure of at least one data packet of the multicast service within a first timing;

a first count of data packets which are failed to receive the multicast service reaches a first threshold;

and the first count of the data packets which are within the first timing and failed in receiving the multicast service reaches a second threshold.

The method of any one of claims 1-3, further comprising:

the terminal side equipment receives first configuration information sent by the access network side equipment, wherein the first configuration information indicates at least one of the following items:

the identifier of the multicast service and the identifier of the PDU session to which the multicast service belongs receive the failure event of the multicast service.

The method according to any one of claims 1 to 4, wherein the sending, by the terminal-side device, the feedback information for the multicast service to the access network-side device includes:

and the terminal side equipment uses the random access resource specific to the multicast service to send feedback information of the multicast service to the access network side equipment through a random access process.

The method according to any one of claims 1 to 5, wherein the receiving, by the terminal-side device, the multicast service sent by the access network-side device includes:

and the terminal side equipment receives the multicast service which is respectively transmitted by using a unicast mode and a multicast mode.

The method of claim 6, wherein the terminal side device receiving the multicast traffic transmitted using a unicast manner and the multicast traffic transmitted using a multicast manner comprises:

the terminal side equipment receives the same PDCP PDU of the multicast service sent by a unicast mode and a multicast mode by using the same PDCP entity on a PDCP layer; and/or the presence of a gas in the gas,

and the terminal side equipment receives the same RLC PDU of the multicast service sent by the unicast mode and the multicast mode by using the same RLC entity on an RLC layer.

The method of claim 6, wherein the terminal side device receiving the multicast traffic transmitted using a unicast manner and the multicast traffic transmitted using a multicast manner comprises:

the terminal side equipment receives PDCP PDUs sent by a unicast mode and a multicast mode respectively by using different PDCP entities on a PDCP layer; and/or the presence of a gas in the gas,

and the terminal side equipment respectively receives the RLC PDUs sent by the unicast mode and the multicast mode by using different RLC entities on an RLC layer.

The method of any one of claims 1-8, further comprising:

the terminal side device receives indication information sent by the access network side device, wherein the indication information indicates a receiving mode used by the multicast service, and the receiving mode is the unicast mode only, the multicast mode only, or the unicast mode and the multicast mode.

The method according to claim 9, wherein the indication information comprises a starting sequence number of the PDCP PDU or RLC PDU in the unicast mode and/or a starting sequence number of the PDCP PDU or RLC PDU in the multicast mode.

The method according to any of claims 1-10, wherein the unicast manner and the multicast manner correspond to different GTP tunnels between a CU portion and a DU portion of the access network side device, respectively.

A multicast transmission control method, comprising:

the access network side equipment sends multicast service to the terminal side equipment;

and the access network side equipment receives feedback information of the multicast service, which is sent by the terminal side equipment, wherein the feedback information indicates that the terminal side equipment successfully receives the multicast service or fails to receive the multicast service.

The method according to claim 12, wherein in case of failure of the terminal-side device to receive the multicast service, the feedback information comprises at least one of the following information: receiving a failure event of the multicast service, the number of data packets failed to receive in the multicast service, an identifier of a Protocol Data Unit (PDU) session to which the multicast service belongs, a multicast mode and/or a unicast mode used for receiving the multicast service, and requesting the unicast mode when the multicast mode fails to receive the multicast service.

The method according to claim 12 or 13, wherein the feedback information indicates failure to receive the multicast service when one of the following failure events is met:

receiving failure of at least one data packet of the multicast service within a first timing;

a first count of data packets which are failed to receive the multicast service reaches a first threshold;

and the first count of the data packets which are within the first timing and failed in receiving the multicast service reaches a second threshold.

The method of any one of claims 12-14, further comprising:

the access network side equipment sends first configuration information to the terminal side equipment, wherein the first configuration information indicates at least one of the following items:

the identifier of the multicast service and the identifier of the PDU session to which the multicast service belongs receive the failure event of the multicast service.

The method according to any one of claims 12 to 15, wherein the receiving, by the access network-side device, the feedback information for the multicast service sent by the terminal-side device includes:

and the access network side equipment receives the feedback information of the multicast service, which is sent by the terminal side equipment, at the random access resource specific to the multicast service.

The method according to any of claims 12-16, wherein the sending the multicast traffic by the access network side device to the terminal side device comprises:

and the access network side equipment respectively transmits the multicast service to the terminal side equipment by using a unicast mode and a multicast mode.

The method of claim 17, wherein the access network side device transmitting the multicast traffic to the terminal side device using a unicast manner and transmitting the multicast traffic to the terminal side device using a multicast manner, comprises:

the access network side equipment uses the same PDCP entity to send the same PDCP PDU of the multicast service to the terminal side equipment in a unicast mode and a multicast mode on a PDCP layer; and/or the presence of a gas in the gas,

and the access network side equipment uses the same RLC entity to receive the same RLC PDU of the multicast service to the terminal side equipment in a unicast mode and a multicast mode on an RLC layer.

The method of claim 17, wherein the access network side device transmits the multicast traffic using a unicast scheme and transmits the multicast traffic using a multicast scheme, comprising:

the access network side equipment uses different PDCP entities to respectively use a unicast mode and a multicast mode to send the PDCP PDU on a PDCP layer; and/or the presence of a gas in the gas,

and the access network side equipment uses different RLC entities to respectively use a unicast mode and a multicast mode to send the RLC PDU on an RLC layer.

The method of any one of claims 12-19, further comprising:

the access network side equipment sends indication information to the terminal side equipment, wherein the indication information indicates a receiving mode used by the multicast service, and the receiving mode is the unicast mode only, the multicast mode only, or the unicast mode and the multicast mode.

The method according to claim 20, wherein the indication information comprises a starting sequence number of the PDCP PDU or RLC PDU in the unicast mode and/or a starting sequence number of the PDCP PDU or RLC PDU in the multicast mode.

The method according to any of claims 12-21, wherein the unicast manner and the multicast manner correspond to different GTP tunnels between a CU portion and a DU portion of the access network side device, respectively.

A communication device, comprising a memory storing a computer program and a processor, wherein the computer program is invoked by the processor to cause the communication device to perform the method of any of claims 1-11.

A communication device, comprising a memory storing a computer program and a processor, wherein the computer program is invoked by the processor to cause the communication device to perform the method of accessing a network-side device according to any one of claims 12-22.

A computer-readable storage medium comprising a memory storing a computer program that, when executed, causes the method of the terminal-side device of any one of claims 1-11 to be implemented.

A computer-readable storage medium comprising a memory storing a computer program that, when executed, causes the method of accessing a network-side device according to any one of claims 12-22 to be implemented.