WO2015032052A1

WO2015032052A1 - Base station and multicast data sending processing method

Info

Publication number: WO2015032052A1
Application number: PCT/CN2013/082995
Authority: WO
Inventors: 韩广林; 熊新; 高永强
Original assignee: 华为技术有限公司
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2015-03-12
Also published as: CN104620528B; CN104620528A

Abstract

Embodiments of the present invention provide a base station and a multicast data sending processing method, wherein the method comprises: obtaining network parameter measurement reports that respectively correspond to multiple user equipments comprising a multicast group and are used for reflecting wireless network communication quality; determining at least one target user equipment among the multiple user equipments according to each of the network parameter measurement reports and sending a notification message to the target user equipment, wherein the notification message is used for instructing the target user equipment to use a feedback channel resource configured for the target user equipment to return feedback information of whether multicast data is successfully received; sending the multicast data to the multiple user equipments comprising the multicast group and receiving the feedback information returned by the target user equipment. The base station and the multicast data sending processing method provided by the embodiments of the present invention implement multicast data receiving feedback at a low feedback channel resource overhead, improving reliability of multicast data transmission.

Description

Base station and multicast data transmission processing method

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a base station and a multicast data transmission processing method. Background technique

The development of mobile bandwidth applications, especially mobile video, not only meets the needs of mobile users for multiple services, but also brings new business opportunities to service providers, which has attracted the attention of the industry. These mobile bandwidth applications require that the same data be scheduled for multiple User Equipments (UEs) at the same time. Compared with general data services, the data has a large amount of data and a long duration.

Figure la is a schematic diagram of a unicast scheduling mechanism used in the prior art. As shown in FIG. 1A, in the technical solution of the unicast scheduling mechanism in the prior art, when the base station needs to schedule the same data for multiple UEs at the same time, in order to learn the data receiving situation of multiple UEs, the base station needs to be used for each UE. (e.g., UE1, UE2, UE3, UE4, and UE5) configure independent feedback channel resources, and if the UE fails to receive, send a data reception failure acknowledgement (NACK) to the base station on the feedback channel resource, and if the UE receives the data, send data to the base station. Receiving a successful acknowledgement (ACK), however, since the base station needs to configure an independent dedicated feedback channel resource for each UE that simultaneously receives data, in the broadcast multicast transmission scenario, the occupied feedback channel resources are more.

The Evolved Multimedia Broadcast/Multicast Service (eMBMS) is introduced in the R9 (Release 9) version of the Long Term Evolution (LTE). Figure lb is a schematic diagram of the prior art employing the eMBMS multicast scheduling mechanism. As shown in FIG. 1B, in the technical solution of the eMBMS multicast scheduling mechanism in the prior art, an Evolved Node B (eNodeB) transmits the same data to multiple UEs on the same resource at the same time. The UEs that receive the eMBMS multicast data are not configured with the feedback channel resources. Therefore, the UE that receives the eMBMS multicast data does not feed back the reception of the multicast data to the base station. It is also impossible to know whether the UE has correctly received the scheduled multicast data.

The reliability of multicast data transmission in the prior art is poor. Summary of the invention

The embodiments of the present invention provide a base station and a multicast data transmission processing method, which implements multicast data reception feedback with less feedback channel resource overhead, and improves the reliability of multicast data transmission.

In a first aspect, an embodiment of the present invention provides a multicast data transmission processing method, where the method includes:

Obtaining a network parameter measurement report corresponding to each of the plurality of user terminals included in the multicast group, where the network parameter measurement report is used to reflect the quality of the wireless network communication;

Determining at least one target user terminal among the plurality of user terminals according to each of the network parameter measurement reports, and sending a notification message to the target user terminal; the notification message is used to indicate whether the target user terminal returns successfully The feedback information of the multicast data, the feedback information is feedback by the target user terminal using feedback channel resources configured for the target user terminal;

And transmitting the multicast data to a plurality of user terminals included in the multicast group, and receiving the feedback information returned by the target user terminal.

According to the first aspect, in a first possible implementation manner of the first aspect, the network parameter measurement report includes any one of the following: a measurement report of a reference signal received power, a measurement report of a reference signal reception quality, and a channel quality. Indicated measurement report, measurement report of timing advance.

According to the first aspect, the first possible implementation manner of the first aspect, in a second possible implementation manner, the determining, by the network parameter measurement report, the at least one target user among the multiple user terminals The terminal includes:

And selecting at least one network parameter measurement report that reflects that the wireless network communication quality is lower than a preset threshold, and determining the corresponding user terminal as the target user terminal.

According to the first aspect, the first to the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the notification message is included in determining the target The feedback channel resource configured for the target user terminal after the user terminal; or the notification message includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and used for indicating The target user terminal returns the indication information of the feedback information by using the feedback channel resource; or

The notification message includes indication information for instructing the target user terminal to return the feedback information using the feedback channel resource pre-configured before determining the target user terminal. According to the first aspect or the first possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the network parameter measurement corresponding to the multiple user terminals included in the acquiring the multicast group The report includes:

Sending measurement report configuration parameters to multiple user terminals included in the multicast group;

And receiving, by the plurality of user terminals included in the multicast group, a network parameter measurement report for reflecting the communication quality of the wireless network.

In a second aspect, an embodiment of the present invention provides a base station, where the base station includes:

The acquiring module is configured to obtain a network parameter measurement report corresponding to each of the multiple user terminals included in the multicast group, where the network parameter measurement report is used to reflect the wireless network communication quality;

a determining module, configured to determine at least one target user terminal among the plurality of user terminals according to each of the network parameter measurement reports acquired by the acquiring module;

a sending module, configured to send a notification message to the target user terminal that is determined by the determining module, where the notification message is used to indicate that the target user terminal returns feedback information for successfully receiving multicast data, where the feedback information is The target user terminal uses feedback channel resource feedback configured for the target user terminal;

The sending module is further configured to send the multicast data to multiple user terminals included in the multicast group;

The acquiring module is further configured to: after the sending module sends the multicast data to the multiple user terminals included in the multicast group, receive the feedback information returned by the target user terminal.

According to the second aspect, in a first possible implementation manner of the second aspect, the network parameter measurement report that is acquired by the acquiring module includes any one of the following: a measurement report of a reference signal received power, and a reference signal receiving quality. Measurement report, measurement report of channel quality indication, measurement report of timing advance amount.

According to the second aspect, the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect, the determining module is specifically configured to: select at least one to reflect that the wireless network communication quality is lower than the pre- The network parameter measurement report of the threshold is set, and the corresponding user terminal is determined as the target user terminal.

According to the second aspect, the first to the second possible implementation manner of the second aspect, in the third possible implementation manner of the second aspect, the notification message sent by the sending module Include the inverse configured for the target user terminal after determining the target user terminal Feed channel resources; or,

The notification message sent by the sending module includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and is used to indicate that the target user terminal uses the feedback channel resource to return to the The indication information of the feedback information; or

The notification message sent by the sending module includes indication information for instructing the target user terminal to return the feedback information by using the feedback channel resource pre-configured before determining the target user terminal.

According to the second aspect or the first possible implementation manner of the second aspect, in the fourth possible implementation manner of the second aspect, the acquiring module is specifically configured to: The user terminal sends the measurement report configuration parameter; and receives the network parameter measurement report sent by the multiple user terminals included in the multicast group to reflect the communication quality of the wireless network.

In a third aspect, an embodiment of the present invention provides a base station, where the base station includes:

The processor is configured to obtain a network parameter measurement report corresponding to each of the multiple user terminals included in the multicast group, where the network parameter measurement report is used to reflect the quality of the wireless network communication;

The processor is further configured to determine at least one target user terminal among the plurality of user terminals according to the acquired network parameter measurement reports;

a transmitter, configured to send a notification message to the target user terminal that is determined by the processor, where the notification message is used to indicate that the target user terminal returns feedback information of whether to successfully receive multicast data, where the feedback information is The target user terminal uses feedback channel resource feedback configured for the target user terminal;

The transmitter is further configured to send the multicast data to multiple user terminals included in the multicast group;

The processor is further configured to: after the transmitter sends the multicast data to multiple user terminals included in the multicast group, receive the feedback information returned by the target user terminal.

According to the third aspect, in a first possible implementation manner of the third aspect, the network parameter measurement report that is acquired by the processor includes any one of the following: a measurement report of a reference signal received power, and a reference signal reception quality. Measurement report, measurement report of channel quality indication, measurement report of timing advance amount.

According to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the processor is specifically configured to: select at least one to reflect a wireless network The network parameter measurement report whose communication quality is lower than the preset threshold determines the corresponding user terminal as the target user terminal.

According to the third aspect, the first to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the notification message sent by the transmitter The feedback channel resource configured for the target user terminal after determining the target user terminal; or

The notification message sent by the transmitter includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and used to indicate that the target user terminal uses the feedback channel resource to return to the The indication information of the feedback information; or

The notification message sent by the transmitter includes indication information for instructing the target user terminal to return the feedback information by using the feedback channel resource pre-configured before determining the target user terminal.

According to the third aspect or the first possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the processor is specifically configured to: The user terminal sends the measurement report configuration parameter; and receives the network parameter measurement report sent by the multiple user terminals included in the multicast group to reflect the communication quality of the wireless network.

The base station and the multicast data transmission processing method provided by the embodiment of the present invention, by selecting at least one target user terminal from a plurality of user terminals included in the multicast group, and configuring feedback channel resources for the target user terminal respectively, so as to enable the target user After receiving the multicast data sent by the base station, the terminal returns the feedback information of whether the multicast data is successfully received to the base station on the feedback channel resource configured for the target user terminal according to the receiving condition of the multicast data, thereby reducing the feedback information of the multicast data. The feedback channel resource overhead realizes the receiving feedback of the multicast data, and improves the reliability of the multicast data transmission. DRAWINGS

Figure la is a schematic diagram of a unicast scheduling mechanism used in the prior art;

Figure lb is a schematic diagram of the eMBMS multicast scheduling mechanism used in the prior art;

2 is a flowchart of Embodiment 1 of a multicast data transmission processing method according to the present invention;

3 is a signaling flowchart of Embodiment 2 of a multicast data transmission processing method according to the present invention;

4 is a signaling flowchart of Embodiment 3 of a multicast data transmission processing method according to the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention; FIG. FIG. 6 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention. detailed description

FIG. 2 is a flowchart of Embodiment 1 of a multicast data transmission processing method according to the present invention. The technical solution of this embodiment is applicable to a transmission scenario using multicast and broadcast technologies. The execution subject of this embodiment is a base station, for example, may be an eNodeB. As shown in FIG. 2, the method in this embodiment includes:

101. Obtain a network parameter measurement report corresponding to multiple user terminals included in the multicast group, where the network parameter measurement report is used to reflect wireless network communication quality.

102. Determine, according to each of the network parameter measurement reports, at least one target user terminal, and send a notification message to the target user terminal, where the notification message is used to indicate whether the target user terminal returns The feedback information of the multicast data is successfully received, and the feedback information is fed back by the target user terminal using feedback channel resources configured for the target user terminal.

103. Send the multicast data to multiple user terminals included in the multicast group, and receive the feedback information returned by the target user terminal.

Specifically, the user terminal may be, for example, a UE, a home base station, or a relay base station, etc., where the UE may be a mobile phone, a notebook, a tablet computer, or a vehicle-mounted computer. A multicast group is a group of user terminals that are determined by the base station to be used for multicast scheduling. The base station will use a multicast scheduling mechanism for multiple user terminals of the multicast group, which will be transmitted to multiple user terminals of the multicast group. The data is simultaneously sent to multiple user terminals in the multicast group on the same resource. Each user terminal in the multicast group separately transmits a network parameter measurement report reflecting the quality of the wireless network communication between the base station and the base station to the base station. The message between the base station and the user terminal may be a medium access control (MAC) message or a radio resource control (RRC) message, but the invention is not limited thereto. .

The multicast data transmission processing method provided by the embodiment of the present invention selects at least one target user terminal from a plurality of user terminals included in the multicast group, and configures a feedback channel resource for the target user terminal, so that the target user terminal is in the target user terminal. After receiving the multicast data sent by the base station, according to the receiving situation of the multicast data, the feedback information of the multicast data is successfully returned to the base station on the feedback channel resource configured for the target user terminal, thereby reducing feedback. The channel resource overhead implements the reception and feedback of multicast data, which improves the reliability of multicast data transmission.

In practice, the base station acquires multiple user terminals included in the multicast group, respectively, for reflecting no The network parameter measurement report of the line network communication quality may be implemented by the user terminal and then reported to the base station, or may be measured and acquired by the base station. For example, the base station can measure the uplink signal to obtain the network parameter measurement result, and the base station can also obtain the measurement report of the Timing Advance (TA). The method for reporting the base station by the user terminal, for example, may be: the base station receives the network parameter measurement report that the user terminal actively reports; or the base station sends the measurement to the multiple user terminals included in the multicast group. The configuration parameter is reported, and the network parameter measurement report sent by the multiple user terminals included in the multicast group to reflect the communication quality of the wireless network is received. In practice, the network parameter measurement report may include, but is not limited to, any one of the following: Reference Signal Receiving Power (RSRP) measurement report, Reference Signal Receiving Quality (RSRQ) Measurement report, Channel Quality Indication (CQI) measurement report or measurement report of timing advance.

On the basis of the above-mentioned embodiments, the implementation manner of determining the at least one target UE in the multiple UEs according to the network parameter measurement report may be various, for example, in each of the network parameter measurement reports, Selecting at least one network parameter measurement report that reflects that the wireless network communication quality is lower than a preset threshold, and determining, by the UE corresponding to the selected network parameter measurement report, the target UE, for example, selecting a UE with RSRP and/or RSRQ and/or CQI difference is The target UE, and/or the UE determined to be far from the eNodeB according to the TA, is the target UE, and the present invention is not limited thereto.

The implementation process of the multicast data transmission processing method provided by the embodiment of the present invention is described in detail below through several specific embodiments.

FIG. 3 is a signaling flowchart of Embodiment 2 of a multicast data transmission processing method according to the present invention. The method in this embodiment is performed by the eNodeB and UE1 to UEn in the multicast group. As shown in FIG. 3, the method in this embodiment includes:

201. The eNodeB determines the multicast scheduling, determines the multicast group to be multicast scheduled, and the eNodeB uses a multicast scheduling mechanism for multiple UEs in the multicast group.

202. The eNodeB sends a measurement report configuration parameter to the multiple UEs included in the multicast group, where the measurement report includes a measurement target and a measurement report condition, where the measurement target, that is, the network parameter to be measured, for example, a reference signal Receive power or reference signal reception quality; measurement report conditions are, for example: reporting a measurement report when the measurement target value is above a certain threshold, reporting a measurement report when the measurement target value is below a certain threshold, reporting the measurement report periodically, or immediately Reporting Volume report.

203. When the UE determines that the measurement report reporting condition is met, the UE prepares to send a network parameter measurement report for reflecting the radio network communication quality to the eNodeB.

204. The UE sends a network parameter measurement report to the eNodeB.

205. The eNodeB receives the network parameter measurement report sent by the multiple UEs included in the multicast group, and determines, according to each network parameter measurement report, whether the one of the multiple UEs needs to receive the multicast data after receiving the multicast data. The target UE of the feedback information, in practice, the eNodeB can select a network parameter measurement report that reflects the worst communication quality of the wireless network, and determine the UE corresponding to the network parameter measurement report as the target UE. For example, the eNodeB measures the report according to each network parameter. , determining that the target UE is UE1.

The eNodeB sends a notification message to the UE1, where the notification message is used to indicate that the UE1 uses the feedback channel resource configured by the eNodeB to successfully receive the feedback information of the multicast data. In practice, the eNodeB configured the feedback channel resource for the UE1 and the implementation manner for the UE1 to use the feedback channel resource to return feedback information may include at least the following three modes:

Implementation 1: The eNodeB configures the feedback channel resource for the UE1 after determining that the target UE is the UE1, and includes the location information of the feedback channel resource configured for the UE1 in the notification message sent to the UE1, and the notification message is used to indicate that the UE1 is used. The feedback channel resource configured to UE1 returns feedback information of whether the multicast data is successfully received to the eNodeB.

Implementation 2: After determining that the target UE is the UE1, the eNodeB configures the location information of the feedback channel resource for the UE1, and includes the location information of the feedback channel resource configured for the UE1 in the notification message sent to the UE1, optionally, the notification message. The indication information for instructing the UE1 to return the feedback information of whether the multicast data is successfully received to the eNodeB using the feedback channel resource configured to the UE1 is further included.

Implementation 3: The eNodeB configures feedback channel resource location information for all the UEs in the multicast group before determining the target UE. After determining that the UE1 is the target UE, the eNodeB sends a notification message to the UE1, where the notification message includes the UE1. The indication information of whether the feedback information of the multicast data is successfully received is returned to the eNodeB using the feedback channel resource pre-configured to the UE1.

207. The eNodeB schedules and sends multicast data to multiple UEs included in the multicast group.

208. After receiving the multicast data sent by the eNodeB, the UE1 sends the multicast data to the eNodeB by using the feedback channel resource configured for the UE1 according to the received data of the multicast data. Feedback information. If the UE1 successfully receives the multicast data, the feedback information sent by the UE1 to the eNodeB on the feedback channel resource configured by the UE1 is ACK; if the target UE fails to receive, the UE sends the feedback information to the eNodeB on the feedback channel resource configured for the target UE. The feedback information is NACK.

209. The eNodeB receives the feedback information returned by the UE1 on the feedback channel resource configured for the UE1: if the eNodeB detects the NACK on the feedback channel resource configured for the UE1, the eNodeB determines that the multicast data transmission fails, and the eNodeB needs to resend the group. Broadcast data; if the eNodeB receives an ACK on the feedback channel resource configured for UE1, the eNodeB determines that the multicast data is successfully transmitted.

210. If the eNodeB determines that the multicast data transmission fails, the eNodeB re-schedules and sends the multicast data.

The multicast data transmission processing method provided by the embodiment of the present invention selects a target UE from multiple UEs included in the multicast group, and configures a feedback channel resource for the target UE, so that the target UE receives the group sent by the eNodeB. After the data is broadcast, according to the receiving condition of the multicast data, the feedback information of whether the multicast data is successfully received is returned to the eNodeB on the feedback channel resource configured for the target UE; when the eNodeB detects the NACK on the feedback channel resource, the group is determined. The broadcast data fails to be sent, and the multicast data is resent, so that the feedback of the multicast data is received with less feedback channel resource overhead, and the reliability of the multicast data transmission is improved.

FIG. 4 is a signaling flowchart of Embodiment 3 of a multicast data transmission processing method according to the present invention. The method in this embodiment is performed by the eNodeB and UE1, UE2 to UEn in the multicast group. As shown in FIG. 4, the method in this embodiment includes:

301. The eNodeB determines the multicast scheduling, determines the multicast group to be multicast scheduled, and the eNodeB uses a multicast scheduling mechanism for multiple UEs in the multicast group.

302. The eNodeB sends measurement report configuration parameters to multiple UEs included in the multicast group.

303. When the UE determines that the measurement report reporting condition is met, the UE prepares to send a network parameter measurement report for reflecting the radio network communication quality to the eNodeB.

304. The UE sends a network parameter measurement report to the eNodeB.

305. The eNodeB receives the network parameter measurement report sent by the multiple UEs included in the multicast group, and determines, according to each network parameter measurement report, that multiple UEs need to receive the multicast successfully after receiving the multicast data. The target UE of the feedback information of the data, in actuality, the eNodeB may select a plurality of network parameter measurement reports that reflect that the communication quality of the wireless network is lower than a preset threshold, and determine the UE corresponding to the network parameter measurement report as the target UE, for example, the eNodeB is configured according to Network parameters The number measurement report determines that the target UE is UE1 and UE2.

306. The eNodeB sends a notification message to the UE1 and the UE2, respectively. The notification message is used to indicate that each target UE returns feedback information of whether the multicast data is successfully received by using the feedback channel resource configured by the eNodeB for each target UE.

307. The eNodeB schedules and sends multicast data to multiple UEs included in the multicast group.

308. After receiving the multicast data sent by the eNodeB, the UE1 sends the feedback information of whether the multicast data is successfully received to the eNodeB by using the feedback channel resource configured for the UE1 according to the received data of the multicast data. If the UE1 successfully receives the multicast data, the feedback information sent by the UE1 to the eNodeB on the feedback channel resource configured by the UE1 is ACK; if the target UE fails to receive, the UE sends the feedback information to the eNodeB on the feedback channel resource configured for the target UE. The feedback information is NACK. The technical solution of the UE2 after receiving the multicast data sent by the eNodeB is similar to that of the UE1, and details are not described herein again.

309. The eNodeB receives the feedback information returned by each target UE on the feedback channel resource configured for each target UE: if the feedback information returned by any one of the target UEs on the feedback channel resource is a NACK, the eNodeB determines that the multicast data transmission fails. Moreover, the eNodeB needs to resend the multicast data. If the eNodeB receives an ACK on all the feedback channel resources configured for the target UE, the eNodeB determines that the multicast data is successfully transmitted.

310. If the eNodeB determines that the multicast data transmission fails, the eNodeB re-schedules and sends the multicast data.

The multicast data transmission processing method provided by the embodiment of the present invention selects multiple target UEs from multiple UEs included in the multicast group, and configures feedback channel resources for each target UE, so that each target UE receives the eNodeB. After the multicast data is sent, according to the receiving condition of the multicast data, feedback information about whether the multicast data is successfully received is returned to the eNodeB for the feedback channel resources configured respectively; if any target UE returns feedback on the feedback channel resource If the information is NACK, the eNodeB determines that the multicast data is failed to be sent, and retransmits the multicast data, so that the multicast data is received and received with less feedback channel resource overhead, and the reliability of the multicast data transmission is improved.

FIG. 5 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention. As shown in FIG. 5, the base station 500 of this embodiment includes: an obtaining module 501, a determining module 502, and a sending module 503, where:

The obtaining module 501 is configured to obtain a network parameter measurement report corresponding to each of the multiple user terminals included in the multicast group, where the network parameter measurement report is used to reflect the quality of the wireless network communication;

a determining module 502, configured to perform, according to each of the network parameter measurement reports acquired by the obtaining module 501 Determining at least one target user terminal among the plurality of user terminals;

The sending module 503 is configured to send a notification message to the target user terminal determined by the determining module 502. The notification message is used to indicate that the target user terminal returns feedback information of whether the multicast data is successfully received, and the feedback information is The target user terminal uses feedback channel resource feedback configured for the target user terminal;

The sending module 503 is further configured to send the multicast data to multiple user terminals included in the multicast group.

The obtaining module 501 is further configured to: after the sending module 503 sends the multicast data to the multiple user terminals included in the multicast group, receive the feedback information returned by the target user terminal.

Specifically, the base station 500 obtains, by using the obtaining module 501, a network parameter measurement report corresponding to the plurality of user terminals included in the multicast group, which is used to reflect the communication quality of the wireless network, and the determining module 502, according to each network acquired by the obtaining module 501. The parameter measurement report determines at least one target user terminal among the plurality of user terminals; sends a notification message to the target user terminal determined by the determining module 502 by the sending module 503; the notification message is used to indicate that the target user terminal uses And returning, by the sending module 503, the multicast data to the multiple user terminals included in the multicast group by using the feedback channel resource configured by the target user terminal; After the sending module 503 sends the multicast data to the plurality of user terminals included in the multicast group, the feedback information returned by the target user terminal is received.

The base station 500 provided by the embodiment of the present invention may be used to perform the technical solution of the method embodiment shown in FIG. 2 of the present invention. The implementation principle and technical effects are similar, and details are not described herein again.

Further, the network parameter measurement report acquired by the obtaining module 501 includes any one of the following: a measurement report of the reference signal received power, a measurement report of the reference signal reception quality, a measurement report of the channel quality indication, and a measurement report of the timing advance amount.

Further, the determining module 502 is specifically configured to: select at least one network parameter measurement report that reflects that the wireless network communication quality is lower than a preset threshold, and determine the corresponding user terminal as the target user terminal.

Further, the notification message sent by the sending module 503 includes the feedback channel resource configured for the target user terminal after determining the target user terminal; or

The notification message sent by the sending module 503 includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and used to indicate the target user end The terminal returns the indication information of the feedback information by using the feedback channel resource; or

The notification message sent by the sending module 503 includes indication information for instructing the target user terminal to return the feedback information by using the feedback channel resource pre-configured before determining the target user terminal.

Further, the obtaining module 501 is specifically configured to: send measurement report configuration parameters to multiple user terminals included in the multicast group; and send multiple user terminals included in the multicast group to reflect wireless network communication quality Network parameter measurement report.

FIG. 6 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention. As shown in FIG. 6, the base station 600 of this embodiment includes: a processor 601 and a transmitter 602, wherein:

The processor 601 is configured to obtain a network parameter measurement report corresponding to each of the multiple user terminals included in the multicast group, where the network parameter measurement report is used to reflect the quality of the wireless network communication;

The processor 601 is further configured to determine, according to each of the obtained network parameter measurement reports, at least one target user terminal among the multiple user terminals;

The transmitter 602 is configured to send a notification message to the target user terminal that is determined by the processor 601. The notification message is used to indicate that the target user terminal returns feedback information of whether to successfully receive multicast data, where the feedback information is The target user terminal uses feedback channel resource feedback configured for the target user terminal;

The transmitter 602 is further configured to send the multicast data to multiple user terminals included in the multicast group.

The processor 601 is further configured to: after the transmitter 602 sends the multicast data to the multiple user terminals included in the multicast group, receive the feedback information returned by the target user terminal.

Specifically, the base station 600 acquires, by using the processor 601, a network parameter measurement report corresponding to the plurality of user terminals included in the multicast group, which is used to reflect the communication quality of the wireless network, and the processor 601 obtains the network parameters according to the acquired network parameters. The measurement report determines at least one target user terminal among the plurality of user terminals; the target user terminal determined by the transmitter 602 to the processor 601 to send a notification message; the notification message is used to indicate that the target user terminal is used as The feedback channel resource configured by the target user terminal returns feedback information of whether the multicast data is successfully received; the multicast data is sent by the transmitter 602 to multiple user terminals included in the multicast group; After transmitting the multicast data to the plurality of user terminals included in the multicast group, the transmitter 602 receives the feedback information returned by the target user terminal. The base station 600 provided by the embodiment of the present invention may be used to perform the technical solution of the method embodiment shown in FIG. 2 of the present invention, and the implementation principle and technical effects thereof are similar, and details are not described herein again.

Further, the network parameter measurement report acquired by the processor 601 includes any one of the following: a measurement report of the reference signal received power, a measurement report of the reference signal reception quality, a measurement report of the channel quality indication, and a measurement report of the timing advance amount.

Further, the processor 601 is specifically configured to: select at least one network parameter measurement report that reflects that the wireless network communication quality is lower than a preset threshold, and determine the corresponding user terminal as the target user terminal.

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Further, the notification message sent by the transmitter 602 includes the feedback channel resource configured for the target user terminal after determining the target user terminal; or

The notification message sent by the transmitter 602 includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and used to indicate that the target user terminal uses the feedback channel resource to return to the The indication information of the feedback information; or

The notification message sent by the transmitter 602 includes indication information for instructing the target user terminal to return the feedback information using the feedback channel resource pre-configured before determining the target user terminal.

Further, the processor 601 is specifically configured to: send measurement report configuration parameters to multiple user terminals included in the multicast group; and send multiple user terminals included in the multicast group to reflect wireless network communication quality Network parameter measurement report.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention. Part of the steps. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

A person skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed, that is, the device is installed. The internal structure is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the device described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A multicast data transmission and processing method, characterized by including:

Obtain network parameter measurement reports corresponding to multiple user terminals included in the multicast group, where the network parameter measurement reports are used to reflect the wireless network communication quality;

Determine at least one target user terminal among the plurality of user terminals according to each of the network parameter measurement reports, and send a notification message to the target user terminal; the notification message is used to indicate whether the target user terminal returns a successful reception Feedback information of multicast data, where the feedback information is fed back by the target user terminal using the feedback channel resources configured for the target user terminal;

Send the multicast data to multiple user terminals included in the multicast group, and receive the feedback information returned by the target user terminal.

2. The method according to claim 1, characterized in that the network parameter measurement report includes any one of the following: a measurement report of reference signal received power, a measurement report of reference signal reception quality, a measurement report of channel quality indication , Measurement report of timing advance.

3. The method according to claim 1 or 2, wherein determining at least one target user terminal among the plurality of user terminals based on each of the network parameter measurement reports includes:

Select at least one network parameter measurement report that reflects that the wireless network communication quality is lower than the preset threshold, and determine the corresponding user terminal as the target user terminal.

4. The method according to any one of claims 1 to 3, wherein the notification message includes the feedback channel resources configured for the target user terminal after the target user terminal is determined; or,

The notification message includes the feedback channel resource configured for the target user terminal after the target user terminal is determined, and instruction information used to instruct the target user terminal to use the feedback channel resource to return the feedback information. ; or,

The notification message includes instruction information used to instruct the target user terminal to return the feedback information using the feedback channel resource pre-configured before determining the target user terminal.

5. The method according to claim 1 or 2, wherein the obtaining network parameter measurement reports corresponding to multiple user terminals included in the multicast group includes:

Send measurement report configuration parameters to multiple user terminals included in the multicast group;

Receive network parameter measurement reports that are sent by multiple user terminals included in the multicast group and are used to reflect the communication quality of the wireless network.

6. A base station, characterized by including:

An acquisition module, configured to acquire network parameter measurement reports corresponding to multiple user terminals included in the multicast group, where the network parameter measurement reports are used to reflect wireless network communication quality;

Determining module, configured to determine at least one target user terminal among the plurality of user terminals according to each of the network parameter measurement reports obtained by the acquisition module;

A sending module, configured to send a notification message to the target user terminal determined by the determining module; the notification message is used to instruct the target user terminal to return feedback information on whether the multicast data is successfully received, and the feedback information is the The target user terminal provides feedback using feedback channel resources configured for the target user terminal;

The sending module is also configured to send the multicast data to multiple user terminals included in the multicast group;

The obtaining module is further configured to receive the feedback information returned by the target user terminal after the sending module sends the multicast data to multiple user terminals included in the multicast group.

7. The base station according to claim 6, wherein the network parameter measurement report obtained by the acquisition module includes any one of the following: a measurement report of reference signal reception power, a measurement report of reference signal reception quality, Channel quality indicator measurement report, timing advance measurement report

8. The base station according to claim 6 or 7, characterized in that the determination module is specifically configured to: select at least one network parameter measurement report that reflects that the wireless network communication quality is lower than a preset threshold, and determine the corresponding user terminal is the target user terminal.

9. The base station according to any one of claims 6-8, characterized in that, the notification message sent by the sending module includes the configuration configured for the target user terminal after determining the target user terminal. Feedback channel resources; or,

The notification message sent by the sending module includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and is used to instruct the target user terminal to use the feedback channel resource to return the requested message. instructions for describing feedback information; or,

The notification message sent by the sending module includes instruction information used to instruct the target user terminal to return the feedback information using the feedback channel resource pre-configured before determining the target user terminal.

10. The base station according to claim 6 or 7, characterized in that, the acquisition module has Body used for:

11. A base station, characterized in that it includes:

A processor configured to obtain network parameter measurement reports corresponding to multiple user terminals included in the multicast group, where the network parameter measurement reports are used to reflect wireless network communication quality;

The processor is further configured to determine at least one target user terminal among the plurality of user terminals based on each of the obtained network parameter measurement reports;

A transmitter, configured to send a notification message to the target user terminal determined by the processor; the notification message is used to instruct the target user terminal to return feedback information on whether the multicast data is successfully received, and the feedback information is the The target user terminal provides feedback using feedback channel resources configured for the target user terminal;

The transmitter is also used to send the multicast data to multiple user terminals included in the multicast group;

The processor is further configured to receive the feedback information returned by the target user terminal after the transmitter sends the multicast data to multiple user terminals included in the multicast group.

12. The base station according to claim 11, wherein the network parameter measurement report obtained by the processor includes any one of the following: a measurement report of reference signal reception power, a measurement report of reference signal reception quality, Channel quality indicator measurement report, timing advance measurement report

13. The base station according to claim 11 or 12, characterized in that the processor is specifically configured to: select at least one network parameter measurement report that reflects that the wireless network communication quality is lower than a preset threshold, and determine the corresponding user terminal is the target user terminal.

14. The base station according to any one of claims 11-13, characterized in that, the notification message sent by the transmitter includes the configuration configured for the target user terminal after determining the target user terminal. Feedback channel resources; or,

The notification message sent by the transmitter includes the feedback channel resource configured for the target user terminal after determining the target user terminal, and is used to instruct the target user terminal to use the feedback channel resource to return the requested information. instructions for describing feedback information; or, The notification message sent by the transmitter includes instruction information for instructing the target user terminal to return the feedback information using the feedback channel resource preconfigured before determining the target user terminal.

15. The base station according to claim 11 or 12, characterized in that the processor is specifically used to: