CN111436026B - Configuration method and terminal for multicast communication of secondary link - Google Patents
Configuration method and terminal for multicast communication of secondary link Download PDFInfo
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- CN111436026B CN111436026B CN201910120312.9A CN201910120312A CN111436026B CN 111436026 B CN111436026 B CN 111436026B CN 201910120312 A CN201910120312 A CN 201910120312A CN 111436026 B CN111436026 B CN 111436026B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1848—Time-out mechanisms
- H04L1/1851—Time-out mechanisms using multiple timers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/08—User group management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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Abstract
The embodiment of the invention provides a configuration method and a terminal for sidelink multicast communication, wherein the method comprises the following steps: sending configuration information of an access layer to a multicast group; determining that the configuration is successful if one of the following conditions is met: the timer times out; receiving feedback information; receiving feedback information before the timer is overtime; receiving feedback information of N group members; before the timer is overtime, receiving feedback information of N group members; receiving feedback information of a target group member; before the timer is overtime, receiving feedback information of a target group member; wherein, N is a positive integer which is more than or equal to 1 and less than or equal to the number of group members in the multicast group; the timer is started after the terminal sends the configuration information; the target group member is part or all of the group members in the multicast group. In the embodiment of the invention, after the configuration information of the access layer is sent to the group members in the multicast group, whether the configuration is successful is determined, thereby ensuring the reliability of resource allocation.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a configuration method and a terminal for sidelink multicast communication.
Background
Some of the matters related to sidelink (or translated to sidelink, side link, etc.) are briefly described below.
1. Introduction to Sidelink
A Long Term Evolution (LTE) system supports sidelink from the 12 th release version, and is used for directly transmitting data between terminal User Equipments (UEs) without using a network device. Referring to fig. 1, fig. 1 is a diagram illustrating an example of an Uplink (Uplink), a Downlink (Downlink) and a sidelink communication link in the conventional LTE. As can be seen from fig. 1, a terminal may communicate with a network device via uplink and downlink, or may communicate directly with other terminals via sidelink links.
The design of the LTE sidelink is suitable for specific public safety affairs (emergency communication in disaster places such as fire places or earthquakes) or vehicle networking (V2X) communication and the like. The internet of vehicles communication includes various services, such as basic security type communication, advanced (automated) driving, formation, sensor expansion, and the like. Since LTE sidelink supports only broadcast communication, it is mainly used for basic security class communication, and other advanced V2X services with strict Quality of Service (QoS) requirements in terms of latency, reliability, etc. will be supported by NR sidelink.
The 5G NR system can be used for an operating frequency band above 6GHz which is not supported by LTE, and supports a larger operating bandwidth, but the current version of the NR system only supports an interface between a base station and a terminal, and does not support a Silelink interface for direct communication between terminals.
2. Transmission form of Sidelink
The current sidelink transmission mainly comprises broadcast (broadcast), multicast (groupcast) and unicast (unicast) transmission forms. Unicast, as the name implies, is a one-to-one transmission. Multicast is a one-to-many (one to any) transmission. Broadcast is also a one to any transmission, but broadcast does not have the concept that UEs belong to the same group.
In sidelink multicast communication, when configuration information of an Access Stratum (AS) needs to be transmitted to group members in a multicast group, if it cannot be determined whether the configuration is successful, reliability of resource allocation is affected.
Disclosure of Invention
The embodiment of the invention provides a configuration method and a terminal for sidelink multicast communication, which are used for solving the problems that whether the configuration is successful or not cannot be determined after configuration information of an access layer is sent to group members in a multicast group, and the reliability of resource allocation is influenced.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for configuring sidelink multicast communication, where the method is applied to a terminal, and includes:
sending configuration information of an access layer to a multicast group;
determining that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information for the configuration information;
receiving feedback information aiming at the configuration information before the second timer is overtime;
receiving feedback information aiming at the configuration information sent by N group members;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
The embodiment of the invention provides a configuration method of sidelink multicast communication, which is applied to a terminal and comprises the following steps:
and if the configuration information aiming at the access layer of the multicast group is received, sending the feedback information.
In a third aspect, an embodiment of the present invention provides a terminal, including:
a sending module, configured to send configuration information of an access layer to a multicast group;
a first determining module, configured to determine that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information for the configuration information; receiving feedback information aiming at the configuration information before the second timer is overtime;
receiving feedback information aiming at the configuration information sent by N group members;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
In a fourth aspect, an embodiment of the present invention provides a terminal, including:
and the feedback module is used for sending the feedback information if the configuration information aiming at the access layer of the multicast group is received.
In a fourth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the configuration method for sidelink multicast communication described above.
In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the steps of the configuration method for sidelink multicast communication described above.
In the embodiment of the invention, after the configuration information of the access layer is sent to the group members in the multicast group, whether the configuration is successful is determined, thereby ensuring the reliability of resource allocation.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is an exemplary diagram of uplink, downlink, and sidelink communication links in the existing LTE;
fig. 2 is a flowchart illustrating a method for configuring sidelink multicast communication according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a configuration method of sidelink multicast communication according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal according to a sixth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal according to a seventh embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
Embodiments of the present invention are described below with reference to the accompanying drawings. The configuration method and the terminal for sidelink multicast communication provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may adopt a 5G system, or an Evolved Long Term Evolution (lte) system, or a subsequent Evolved communication system.
The terminal provided by the embodiment of the invention can be a Mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA) and the like. Those skilled in the art will recognize that the words are not limiting.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for configuring sidelink multicast communication according to a first embodiment of the present invention, where the method for configuring sidelink multicast communication is applied to a terminal, and the method includes:
step 21: sending configuration information of an access layer to a multicast group;
step 22: determining that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information for the configuration information;
receiving feedback information aiming at the configuration information before the second timer is overtime;
receiving feedback information aiming at the configuration information sent by N group members;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
In the embodiment of the invention, after the configuration information of the access layer is sent to the group members in the multicast group, whether the configuration is successful or not is determined, and when the configuration is determined to be successful, the subsequent related operation can be carried out, thereby ensuring the reliability of resource allocation.
In an embodiment of the present invention, the timing durations of the first timer, the second timer, the third timer, and the fourth timer may be all the same (i.e., the timing durations of the four timers are all the same), all the same (i.e., the timing durations of the four timers are all different), or some different (e.g., the timing durations of the first timer and the second timer are the same, the timing durations of the third timer and the fourth timer are the same, but the timing durations of the first timer and the second timer are different from the timing durations of the third timer and the fourth timer).
In some embodiments of the present invention, if the terminal does not obtain the number and/or the identifier of the group members in the multicast group, optionally, the condition for determining that the configuration is successful may be one of the following:
the first timer times out;
receiving feedback information for the configuration information;
receiving feedback information aiming at the configuration information before the second timer is overtime;
in some other embodiments of the present invention, if the terminal obtains the number of group members in the multicast group, optionally, the condition for determining that the configuration is successful may be one of the following:
receiving feedback information aiming at the configuration information sent by N group members;
and before the third timer is overtime, receiving feedback information aiming at the configuration information sent by the N group members.
In some other embodiments of the present invention, if the terminal obtains the identifier of the group member in the multicast group, optionally, the condition for determining that the configuration is successful may be one of the following:
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
in some embodiments of the present invention, optionally, after the sending the configuration information of the access stratum to the multicast group, the method further includes: determining that the configuration fails if one of the following conditions is satisfied:
feedback information aiming at the configuration information is not received;
before the second timer is overtime, feedback information aiming at the configuration information is not received;
n pieces of feedback information aiming at the configuration information are not received;
before the third timer is overtime, N pieces of feedback information aiming at the configuration information are not received;
feedback information aiming at the configuration information and sent by a target group member is not received;
and before the fourth timer is overtime, feedback information aiming at the configuration information and sent by the target group member is not received.
In the embodiment of the present invention, optionally, the feedback information includes at least one of the following information: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
In some embodiments of the present invention, optionally, the sending the configuration information of the access stratum to the multicast group includes:
transmitting the configuration information to the multicast group through a Radio Resource Control (RRC) broadcast signaling;
and/or
And if the terminal obtains the identifier of at least one group member in the multicast group, respectively sending the configuration information to the at least one group member through a secondary link RRC unicast signaling.
The sidelink RRC broadcast signaling is sent over the PC5 interface and may thus also be referred to as PC5-RRC broadcast signaling. The secondary link RRC broadcast signaling may be secondary link RRC reconfiguration signaling.
The secondary link RRC unicast signaling is sent over the PC5 interface and thus may also be referred to as PC5-RRC unicast signaling. The secondary link RRC unicast signaling may be secondary link RRC reconfiguration signaling.
In some embodiments of the present invention, optionally, if the terminal does not obtain the identifier of the group member in the multicast group, the configuration information needs to be sent to the multicast group through sidelink RRC broadcast signaling. And when the configuration information is sent to the multicast group through a sidelink RRC broadcast signaling, the configuration information comprises a set of common configuration information, and the common configuration information is used by all group members in the multicast group. Optionally, the common configuration information includes sidelink radio resource configuration information and/or sidelink radio bearer high-level configuration information.
In some other embodiments of the present invention, optionally, if the terminal obtains an identifier of at least one group member in the multicast group, the configuration information may be sent to the multicast group through a sidelink RRC broadcast signaling, and when the configuration information is sent to the multicast group through the sidelink RRC broadcast signaling, the configuration information includes at least one set of dedicated configuration information, where in at least one group member, the identifier of each group member is associated with one set of dedicated configuration information. Optionally, the dedicated configuration information includes sidelink radio resource configuration information.
In some other embodiments of the present invention, optionally, if the terminal obtains an identifier of at least one group member in the multicast group, the configuration information may be sent to the multicast group through a sidelink RRC broadcast signaling, and when the configuration information is sent to the multicast group through the sidelink RRC broadcast signaling, the configuration information includes at least one set of dedicated configuration information and a set of common configuration information, where in the at least one group member, the identifier of each group member is associated with one set of dedicated configuration information, and the common configuration information is used by all group members in the multicast group. Optionally, the dedicated configuration information includes sidelink radio resource configuration information. Optionally, the common configuration information includes sidelink radio bearer high-level configuration information.
In some other embodiments of the present invention, optionally, if the terminal obtains an identifier of at least one group member in the multicast group, the configuration information may be sent to the multicast group through sidelink RRC broadcast signaling, and when the configuration information is sent to the multicast group through sidelink RRC broadcast signaling, the configuration information may include a set of common configuration information, where the common configuration information is used by all group members in the multicast group. Optionally, the common configuration information includes sidelink radio resource configuration information and/or sidelink radio bearer high-level configuration information.
In some other embodiments of the present invention, optionally, if the terminal obtains the identifiers of some group members in the multicast group, dedicated configuration information may be sent to the some group members through sidelink RRC unicast signaling, and common configuration information may be sent to other group members through sidelink RRC broadcast signaling.
The sidelink radio resource configuration information may include at least one of: the secondary link radio resource used for receiving and transmitting data of the terminal and the group members is used for a secondary link radio resource fed back by a Hybrid automatic repeat request (HARQ), a secondary link radio resource reported by Channel State Information (CSI), and the like.
The sidelink radio bearer higher layer configuration may include at least one of: service Data Adaptation Protocol (SDAP) configuration, Packet Data Convergence Protocol (PDCP) configuration, Radio Link Control (RLC) configuration, Media Access Control (MAC) configuration, and the like.
In some embodiments of the present invention, if the condition for determining the configuration failure comprises: feedback information aiming at the configuration information and sent by a target group member is not received, and the method further comprises the following steps: and if the terminal does not receive the feedback information sent by the first target member group, resending the configuration information to the first target member group, wherein the first target member group is part or all of the target members. Optionally, the configuration information is sent to the multicast group through a sidelink RRC broadcast signaling; or, the configuration information is sent to each first target group member through a sidelink RRC unicast signaling.
Referring to fig. 3, fig. 3 is a configuration method of sidelink multicast communication according to the present invention, applied to a terminal, including:
step 31: and if the configuration information aiming at the access layer of the multicast group is received, sending the feedback information.
In some embodiments of the present invention, optionally, if the configuration information is sent through a sidelink RRC broadcast signaling:
the terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group, and then sends feedback information; or
And the terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group, and if the configuration information contains the identifier of the terminal, the terminal sends feedback information.
In some embodiments of the present invention, optionally, if the configuration information is sent through a sidelink RRC unicast signaling and the terminal demodulates the configuration information according to its own identifier or group identifier in combination with its own identifier, the configuration information is sent as feedback information.
Optionally, the feedback information includes at least one of the following information: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
The configuration method of sidelink multicast communication in the above embodiment may be applied to V2X. Currently, in V2X, a vehicle in multicast communication has a role of a head car and a role of a non-head car, wherein one of resource scheduling manners for group members in a multicast group is to uniformly schedule resources for the head car, that is, not only the head car allocates sidelink resources of the head car and the group members, but also the sidelink resources between the group members and the group members are allocated by the head car. For fleet multicast communication of formation (platooning), if resource scheduling is allocated by a head car, when configuration information of an access layer needs to be sent to a plurality of group members of the multicast communication, how to determine whether configuration is successful is a problem to be considered.
The following describes an example of a method of configuring sidelink multicast communication applied to V2X.
The application scenario of the embodiment of the invention is as follows: in the embodiment of the invention, the head car (the terminal corresponding to the head car) does not obtain the number and the identification of the group members in the multicast group
The configuration method of the sidelink multicast communication of the embodiment of the invention comprises the following steps:
step 41: the head car broadcasts the configuration information of the access layer to the multicast group;
the configuration information may be transmitted through sidelink RRC broadcast signaling;
step 42: if a group member (indicating a terminal corresponding to the group member) demodulates the sidelink RRC broadcast signaling according to the identifier of the multicast group, sending feedback information aiming at the configuration information;
the sidelink RRC broadcast signaling may be sidelink RRC reconfiguration signaling, and the feedback information may be sent through sidelink RRC reconfiguration complete signaling.
Step 43: when the head vehicle judges that one of the following conditions is met, the configuration is determined to be successful;
1) receiving feedback information for the configuration information;
2) and the first timer is overtime and is started after the terminal sends the configuration information.
3) And before the second timer is overtime, receiving feedback information aiming at the configuration information, wherein the second timer is started after the terminal sends the configuration information.
Step 44: if the above conditions include receiving feedback information aiming at the configuration information, determining that the configuration is failed when the head-up vehicle judges that one of the following conditions is met:
1) feedback information aiming at the configuration information is not received;
2) and before the second timer is overtime, feedback information aiming at the configuration information is not received.
Application scenario two of the embodiment of the present invention: in the embodiment of the invention, the head vehicle obtains the identification of the group members in the multicast group
Step 51: one of the following methods is adopted, the head vehicle sends the configuration information of the access layer to the multicast group;
1) the head car broadcasts the configuration information of the access layer to the multicast group; the configuration information may be transmitted through sidelink RRC broadcast signaling.
a) If the head car obtains the identifier of at least one group member in the multicast group, the configuration information may further include at least one set of dedicated configuration information, where the identifier of each group member in the at least one group member is associated with one set of dedicated configuration information.
The dedicated configuration information may include sidelink radio resource configuration information.
The sidelink radio resource configuration information may include, for example, at least one of: the auxiliary link wireless resource is used for data transceiving of the head vehicle and the group members, the auxiliary link wireless resource is used for HARQ feedback, and the auxiliary link wireless resource is used for CSI measurement reporting.
b) The configuration information may further include a set of common configuration information, where the common configuration information does not relate to the identifier of any group member and belongs to common configuration of the multicast group in which the common configuration information belongs.
The common configuration information may include a sidelink radio bearer higher layer configuration.
The sidelink radio bearer higher layer configuration may include, for example, at least one of: configuration of SDAP, configuration of PDCP, configuration of RLC, configuration of MAC, etc.
2) And if the head vehicle obtains the identification of at least one group member in the multicast group, the head vehicle respectively sends the configuration information to the at least one group member through a secondary link RRC unicast signaling.
Step 52: the group members in the multicast group receive the configuration information sent by the head car by adopting one of the following methods:
for the 1) transmission mode, if the group member demodulates the sidelink RRC broadcast signaling according to the identifier of the multicast group, transmitting feedback information aiming at the configuration information;
for the 2) transmission mode, if the group member demodulates the sidelink RRC unicast signaling according to the own identification or the combination of the group identification and the own identification, the feedback information is transmitted according to the configuration information;
step 53: when the head vehicle judges that one of the following conditions is met, the configuration is determined to be successful;
1) receiving feedback information aiming at the configuration information sent by N group members;
2) receiving feedback information aiming at the configuration information sent by a target group member;
3) before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
4) before the fourth timer is overtime, receiving feedback information aiming at the configuration information sent by a target group member;
wherein, N is a positive integer, is greater than or equal to 1, and is less than or equal to the number of group members in the multicast group.
The second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
Step 54: and when the head vehicle judges that the condition is not met, determining that the configuration fails.
Based on the same inventive concept, referring to fig. 4, an embodiment of the present invention further provides a terminal 400, including:
a sending module 401, configured to send configuration information of an access layer to a multicast group;
a first determining module 402, configured to determine that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information for the configuration information;
receiving feedback information aiming at the configuration information before the second timer is overtime;
receiving feedback information aiming at the configuration information sent by N group members;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
In the embodiment of the invention, after the configuration information of the access layer is sent to the group members in the multicast group, whether the configuration is successful is determined, thereby ensuring the reliability of resource allocation.
Optionally, the feedback information includes at least one of the following information: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
Optionally, the terminal 400 further includes:
a second determining module, configured to, after the sending the configuration information of the access stratum to the multicast group, further include:
determining that the configuration fails if one of the following conditions is satisfied:
feedback information aiming at the configuration information is not received;
before the second timer is overtime, feedback information aiming at the configuration information is not received;
n pieces of feedback information aiming at the configuration information are not received;
before the third timer is overtime, N pieces of feedback information aiming at the configuration information are not received;
feedback information aiming at the configuration information and sent by a target group member is not received;
and before the fourth timer is overtime, feedback information aiming at the configuration information and sent by the target group member is not received.
Optionally, the sending module 401 includes:
a first sending submodule, configured to send the configuration information to the multicast group through a sidelink RRC broadcast signaling; and/or
And a second sending submodule, configured to send the configuration information to at least one group member through a sidelink RRC unicast signaling, if the terminal obtains an identifier of the at least one group member in the multicast group.
Optionally, if the terminal does not obtain the identifier of the group member in the multicast group, when the configuration information is sent to the multicast group through a sidelink RRC broadcast signaling, the configuration information includes a set of common configuration information, and the common configuration information is used by all group members in the multicast group.
Optionally, the common configuration information includes sidelink radio resource configuration information and/or sidelink radio bearer high-level configuration information.
Optionally, if the terminal obtains the identifier of at least one group member in the multicast group, and sends the configuration information to the multicast group through sidelink RRC broadcast signaling,
the configuration information comprises at least one set of special configuration information, wherein in at least one group member, the identifier of each group member is associated with one set of special configuration information; and/or
The configuration information includes a set of common configuration information, and the common configuration information is used by all group members in the multicast group.
Optionally, the dedicated configuration information includes sidelink radio resource configuration information.
Optionally, the common configuration information includes sidelink radio bearer high-level configuration information.
Optionally, if it is determined that the configuration fails, the condition includes: feedback information aiming at the configuration information and sent by a target group member is not received, and the method further comprises the following steps:
the sending module is configured to resend the configuration information to a first target group member if the terminal does not receive the feedback information sent by the first target group member, where the first target group member is a part or all of the target members.
Optionally, the sending module is configured to send the configuration information to the multicast group through a sidelink RRC broadcast signaling; or, the configuration information is sent to each first target group member through a sidelink RRC unicast signaling.
The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment shown in fig. 2, and is not described here again in order to avoid repetition.
Referring to fig. 5, an embodiment of the present invention further provides a terminal 500, including:
a feedback module 501, configured to send feedback information if configuration information of an access layer for a multicast group is received.
Optionally, if the configuration information is sent through a sidelink RRC broadcast signaling:
the feedback module 501 is configured to send feedback information if the terminal demodulates the sidelink RRC broadcast signaling according to the identifier of the multicast group; or
The feedback module 501 is configured to demodulate the sidelink RRC broadcast signaling according to the identifier of the multicast group, and send feedback information if the configuration information includes the identifier of the terminal.
Optionally, the feedback module 501 is configured to send feedback information if the configuration information is sent through a sidelink RRC unicast signaling and the terminal demodulates the configuration information according to its own identifier or group identifier in combination with its own identifier.
Optionally, the feedback information includes at least one of the following information: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
The terminal provided by the embodiment of the present invention can implement each process implemented by the terminal in the method embodiment shown in fig. 3, and is not described here again in order to avoid repetition.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a terminal according to another embodiment of the present invention, where the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 6010, and a power supply 6011. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The radio frequency unit 601 is configured to send configuration information of an access layer to a multicast group;
a processor 6010 configured to determine that the configuration is successful if one of the following conditions is satisfied:
the first timer times out;
receiving feedback information for the configuration information;
receiving feedback information aiming at the configuration information before the second timer is overtime;
receiving feedback information aiming at the configuration information sent by N group members;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
Alternatively, the first and second electrodes may be,
a processor 6010, configured to send the feedback information if the configuration information for the access layer of the multicast group is received.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be configured to receive and transmit signals during a message transmission or a call, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 6010; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 601 may also communicate with a network and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user through the network module 602, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into an audio signal and output as sound. Also, the audio output unit 603 can also provide audio output related to a specific function performed by the terminal 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.
The input unit 604 is used to receive audio or video signals. The input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 60101 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphic processor 60101 may be stored in the memory 609 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. The microphone 60602 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 601 in case of the phone call mode.
The terminal 600 also includes at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 6061 and/or the backlight when the terminal 600 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 605 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 606 is used to display information input by the user or information provided to the user. The Display unit 606 may include a Display panel 6061, and the Display panel 6061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 607 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 6071 using a finger, stylus, or any suitable object or accessory). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 6010, and receives and executes commands sent from the processor 6010. In addition, the touch panel 6071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, the other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 6071 may be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 6010 to determine the type of the touch event, and then the processor 6010 provides a corresponding visual output on the display panel 6061 according to the type of the touch event. Although in fig. 6, the touch panel 6071 and the display panel 6061 are two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to realize the input and output functions of the terminal, and this is not limited here.
The interface unit 608 is an interface for connecting an external device to the terminal 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 600 or may be used to transmit data between the terminal 600 and an external device.
The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 609 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 6010 is the control center of the terminal, connects various parts of the entire terminal through various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 609 and calling data stored in the memory 609, thereby integrally monitoring the terminal. Processor 6010 may include one or more processing units; preferably, processor 6010 may integrate an application processor that handles mainly the operating system, user interfaces, application programs, etc. and a modem processor that handles mainly wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 6010.
The terminal 600 may further include a power supply 6011 (such as a battery) for supplying power to each component, and preferably, the power supply 6011 may be logically connected to the processor 6010 through a power management system, so that functions of managing charging, discharging, and power consumption are implemented through the power management system.
In addition, the terminal 600 includes some functional modules that are not shown, and are not described in detail herein.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a terminal according to another embodiment of the present invention, where the terminal 700 includes: a processor 701 and a memory 702. In this embodiment of the present invention, the terminal 700 further includes: a computer program stored on the memory 702 and executable on the processor 701, the computer program when executed by the processor 701 performing the steps of:
sending configuration information of an access layer to a multicast group;
determining that the configuration is successful if one of the following conditions is met:
sending configuration information of an access layer to a multicast group;
determining that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information for the configuration information;
receiving feedback information aiming at the configuration information before the second timer is overtime;
receiving feedback information aiming at the configuration information sent by N group members;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
receiving feedback information aiming at the configuration information sent by a target group member;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.
Optionally, the feedback information includes at least one of the following information: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
Optionally, the computer program may further implement the following steps when executed by the processor 701:
after the sending the configuration information of the access layer to the multicast group, the method further comprises the following steps:
determining that the configuration fails if one of the following conditions is satisfied:
feedback information aiming at the configuration information is not received;
before the second timer is overtime, feedback information aiming at the configuration information is not received;
n pieces of feedback information aiming at the configuration information are not received;
before the third timer is overtime, N pieces of feedback information aiming at the configuration information are not received;
feedback information aiming at the configuration information and sent by a target group member is not received;
and before the fourth timer is overtime, feedback information aiming at the configuration information and sent by the target group member is not received.
Optionally, the computer program may further implement the following steps when executed by the processor 701:
the sending the configuration information of the access layer to the multicast group includes:
transmitting the configuration information to the multicast group through a secondary link RRC broadcast signaling; and/or
And if the terminal obtains the identifier of at least one group member in the multicast group, respectively sending the configuration information to the at least one group member through a secondary link RRC unicast signaling.
Optionally, if the terminal does not obtain the identifier of the group member in the multicast group, when the configuration information is sent to the multicast group through a sidelink RRC broadcast signaling, the configuration information includes a set of common configuration information, and the common configuration information is used by all group members in the multicast group.
Optionally, the common configuration information includes sidelink radio resource configuration information and/or sidelink radio bearer high-level configuration information.
Optionally, if the terminal obtains the identifier of at least one group member in the multicast group, and sends the configuration information to the multicast group through sidelink RRC broadcast signaling,
the configuration information comprises at least one set of special configuration information, wherein in at least one group member, the identifier of each group member is associated with one set of special configuration information; and/or
The configuration information includes a set of common configuration information, and the common configuration information is used by all group members in the multicast group.
Optionally, the dedicated configuration information includes sidelink radio resource configuration information.
Optionally, the common configuration information includes sidelink radio bearer high-level configuration information.
Optionally, if it is determined that the configuration fails, the condition includes: feedback information aiming at the configuration information and sent by a target group member is not received, and the method further comprises the following steps:
and if the terminal does not receive the feedback information sent by the first target member group, resending the configuration information to the first target member group, wherein the first target member group is part or all of the target members.
Optionally, the configuration information is sent to the multicast group through a sidelink RRC broadcast signaling; or
And respectively sending the configuration information to each first target group member through secondary link RRC unicast signaling.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a terminal according to another embodiment of the present invention, where the terminal 800 includes: a processor 801 and a memory 802. In this embodiment of the present invention, the terminal 800 further includes: a computer program stored on the memory 802 and executable on the processor 801, the computer program when executed by the processor 801 implementing the steps of: and if the configuration information aiming at the access layer of the multicast group is received, sending the feedback information.
Optionally, the computer program when executed by the processor 801 may further implement the steps of:
if the configuration information is sent through sidelink RRC broadcast signaling:
the terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group, and then sends feedback information; or
And the terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group, and if the configuration information contains the identifier of the terminal, the terminal sends feedback information.
Optionally, the computer program when executed by the processor 801 may further implement the steps of:
and if the configuration information is sent through a secondary link RRC unicast signaling and the terminal demodulates the configuration information according to the identification of the terminal or the group identification combined with the identification of the terminal, sending feedback information.
Optionally, the feedback information includes at least one of the following information: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the configuration method for sidelink multicast communication, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A method for configuring sidelink multicast communication is applied to a terminal, and is characterized by comprising the following steps:
sending configuration information of an access layer to a multicast group;
determining that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information aiming at the configuration information before the second timer is overtime;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
2. The method of claim 1,
the feedback information includes at least one of: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
3. The method of claim 1, wherein sending configuration information of an access stratum to a multicast group further comprises:
determining that the configuration fails if one of the following conditions is satisfied:
feedback information aiming at the configuration information is not received;
before the second timer is overtime, feedback information aiming at the configuration information is not received;
n pieces of feedback information aiming at the configuration information are not received;
before the third timer is overtime, N pieces of feedback information aiming at the configuration information are not received;
feedback information aiming at the configuration information and sent by a target group member is not received;
and before the fourth timer is overtime, feedback information aiming at the configuration information and sent by the target group member is not received.
4. The method of claim 1, wherein the sending configuration information of an access stratum to a multicast group comprises:
transmitting the configuration information to the multicast group through a secondary link RRC broadcast signaling; and/or
And if the terminal obtains the identifier of at least one group member in the multicast group, respectively sending the configuration information to the at least one group member through a secondary link RRC unicast signaling.
5. The method of claim 4,
if the terminal does not obtain the identifier of the group member in the multicast group, when the configuration information is sent to the multicast group through a sidelink RRC broadcast signaling, the configuration information comprises a set of public configuration information, and the public configuration information is used by all the group members in the multicast group.
6. The method according to claim 5, wherein the common configuration information comprises sidelink radio resource configuration information and/or sidelink radio bearer higher layer configuration information.
7. The method of claim 4, wherein if the terminal obtains an identification of at least one group member in the multicast group and sends the configuration information to the multicast group via sidelink RRC unicast signaling,
the configuration information comprises at least one set of special configuration information, wherein in at least one group member, the identifier of each group member is associated with one set of special configuration information; and/or
The configuration information includes a set of common configuration information, and the common configuration information is used by all group members in the multicast group.
8. The method of claim 7, wherein the dedicated configuration information comprises sidelink radio resource configuration information.
9. The method of claim 7, wherein the common configuration information comprises sidelink radio bearer higher layer configuration information.
10. The method of claim 3, wherein determining the condition for failing to configure comprises: feedback information aiming at the configuration information and sent by a target group member is not received, and the method further comprises the following steps:
and if the terminal does not receive the feedback information sent by the first target group member, resending the configuration information to the first target group member, wherein the first target group member is part or all of the target group members.
11. The method of claim 10,
transmitting the configuration information to the multicast group through a secondary link RRC broadcast signaling; or
And respectively sending the configuration information to each first target group member through secondary link RRC unicast signaling.
12. A method for configuring sidelink multicast communication is applied to a terminal, and is characterized by comprising the following steps:
if receiving the configuration information of the access layer aiming at the multicast group, sending feedback information;
if the configuration information is sent through sidelink RRC broadcast signaling:
the terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group, and then sends feedback information; or
The terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group, and if the configuration information contains the identifier of the terminal, the terminal sends feedback information;
and if the configuration information is sent through a secondary link RRC unicast signaling and the terminal demodulates the configuration information according to the identification of the terminal or the group identification combined with the identification of the terminal, sending feedback information.
13. The method of claim 12,
the feedback information includes at least one of: the feedback information of the RRC layer of the secondary link, the feedback information of the RLC layer and the feedback information of the HARQ.
14. A terminal, comprising:
a sending module, configured to send configuration information of an access layer to a multicast group;
a first determining module, configured to determine that the configuration is successful if one of the following conditions is met:
the first timer times out;
receiving feedback information aiming at the configuration information before the second timer is overtime;
before the third timer is overtime, feedback information aiming at the configuration information and sent by N group members is received;
before the fourth timer is overtime, receiving feedback information of the target group member aiming at the configuration information;
wherein, N is a positive integer which is greater than or equal to 1 and less than or equal to the number of group members in the multicast group;
the first timer is started after the terminal sends the configuration information;
the second timer is started after the terminal sends the configuration information;
the third timer is started after the terminal sends the configuration information;
the fourth timer is started after the terminal sends the configuration information;
the target group members are part or all of the group members in the multicast group.
15. A terminal, comprising:
the feedback module is used for sending feedback information if receiving configuration information of an access layer aiming at the multicast group;
if the configuration information is sent through sidelink RRC broadcast signaling:
the feedback module is used for sending feedback information when the terminal demodulates the secondary link RRC broadcast signaling according to the identifier of the multicast group; or
The feedback module is used for demodulating the secondary link RRC broadcast signaling by the terminal according to the identifier of the multicast group, and sending feedback information if the configuration information contains the identifier of the terminal;
the feedback module is configured to send feedback information if the configuration information is sent through a sidelink RRC unicast signaling and the terminal demodulates the configuration information according to its own identifier or a group identifier in combination with its own identifier.
16. A terminal comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of configuring sidelink multicast communication as claimed in any one of claims 1 to 13.
17. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method of configuring sidelink multicast communication according to any one of claims 1 to 13.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910120312.9A CN111436026B (en) | 2019-02-18 | 2019-02-18 | Configuration method and terminal for multicast communication of secondary link |
| PCT/CN2020/075723 WO2020169028A1 (en) | 2019-02-18 | 2020-02-18 | Configuration method for sidelink multicast communication, and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910120312.9A CN111436026B (en) | 2019-02-18 | 2019-02-18 | Configuration method and terminal for multicast communication of secondary link |
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| WO2023097601A1 (en) * | 2021-12-02 | 2023-06-08 | Oppo广东移动通信有限公司 | Method and apparatus for running drx timer, and terminal device |
| WO2023115321A1 (en) * | 2021-12-21 | 2023-06-29 | Qualcomm Incorporated | Groupcast retransmission techniques |
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| CN108322414A (en) * | 2017-01-17 | 2018-07-24 | 华为技术有限公司 | A kind of feedback information transmission method and device |
| CN108347313A (en) * | 2017-01-24 | 2018-07-31 | 华为技术有限公司 | Feedback method and user equipment |
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| CN107734569A (en) * | 2016-08-11 | 2018-02-23 | 华为技术有限公司 | Communication means and device |
| CN108322414A (en) * | 2017-01-17 | 2018-07-24 | 华为技术有限公司 | A kind of feedback information transmission method and device |
| CN108347313A (en) * | 2017-01-24 | 2018-07-31 | 华为技术有限公司 | Feedback method and user equipment |
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