CN111148050A

CN111148050A - Multicast management method and device

Info

Publication number: CN111148050A
Application number: CN201911396240.7A
Authority: CN
Inventors: 曹春燕; 刘星; 顾祥新
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-05-12
Anticipated expiration: 2039-12-30
Also published as: WO2021135304A1; CN111148050B

Abstract

The present disclosure relates to a multicast management method and apparatus, the method comprising: acquiring first terminal capability information of a first terminal; determining group management information of the terminal group according to the first terminal capability information; and sending the group management information. Various aspects of the embodiment of the disclosure can ensure that terminal capability information used by all terminals in a terminal group can be updated in real time when a new terminal is added to the terminal group or when the capability of an associated terminal is updated, so that the terminal capability used by all terminals is managed.

Description

Multicast management method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a multicast management method and apparatus.

Background

V2X (Vehicle to X) is a key technology of future intelligent transportation systems, and mainly studies a Vehicle data transmission scheme based on a 3GPP communication protocol. V2X communication includes V2V communication (Vehicle to Vehicle communication), V2I communication (Vehicle to Infrastructure communication), and V2P communication (Vehicle to pedestrian communication). The application of V2X will improve driving safety, reduce congestion and vehicle energy consumption, improve traffic efficiency and vehicle-mounted entertainment information, etc.

In the V2X communication system, when information is exchanged among the V2X terminal group, the signaling overhead is large, and the terminal capability information of the terminal group cannot be dynamically updated.

Disclosure of Invention

In view of the above, the present disclosure proposes a multicast management method, including:

acquiring first terminal capability information of a first terminal, wherein the first terminal capability information is used for indicating at least one terminal capability supported by the first terminal;

determining group management information of the terminal group according to the first terminal capability information, wherein the terminal group is a terminal group associated with the first terminal, the group management information is used for managing terminal capabilities or network configuration information used by all terminals in the terminal group, and the network configuration information is used for configuring communication parameters of each terminal in the terminal group;

and sending the group management information.

In a possible embodiment, the determining group management information of the terminal group according to the first terminal capability information includes:

determining second terminal capability information according to the first terminal capability information, wherein the second terminal capability information is used for indicating the terminal capability used by all terminals in the terminal group;

and obtaining the group management information according to the second terminal capability information.

In a possible implementation manner, determining, according to the first terminal capability information, the second terminal capability information, where any terminal capability in the group management information is a lowest terminal capability among terminal capabilities of all terminals in a terminal group associated with the first terminal, includes:

comparing at least one terminal capability indicated by the first terminal capability information with at least one terminal capability indicated by the third terminal capability information of the terminal group, and determining the second terminal capability information according to the comparison result;

the obtaining the group management information according to the second terminal capability information includes:

writing the second terminal capability information into the group management information,

wherein the third terminal capability information is a terminal capability used by all terminals in the terminal group before the first terminal joins the terminal group or before the first terminal capability is updated,

wherein each terminal capability indicated by the first terminal capability information corresponds to each terminal capability indicated by the third terminal capability information, respectively.

In a possible implementation manner, the determining the second terminal capability information according to the comparison result includes:

and taking the first terminal capability information as the second terminal capability information under the condition that each terminal capability indicated by the first terminal capability information is lower than each corresponding terminal capability indicated by the third terminal capability information.

and under the condition that the K terminal capabilities indicated by the first terminal capability information are respectively lower than the corresponding K terminal capabilities indicated by the third terminal capability information, obtaining the second terminal capability information according to the K terminal capabilities indicated by the first terminal capability information and other terminal capabilities except the K terminal capabilities in the third terminal capability information, wherein K is an integer and is smaller than the total number of the terminal capabilities indicated by the first terminal capability information.

and taking the third terminal capability information as the second terminal capability information under the condition that each terminal capability indicated by the first terminal capability information is respectively higher than each corresponding terminal capability indicated by the third terminal capability information.

In a possible implementation manner, the determining, according to the comparison result, the second terminal capability information includes:

and when the terminal capability indicated by the first terminal capability information and the terminal capability indicated by the third terminal capability information have intersection, taking the terminal capability corresponding to the intersection as the second terminal capability information.

In a possible implementation manner, the obtaining the group management information according to the second terminal capability information includes:

generating network configuration information according to the second terminal capability information;

and writing the network configuration information into the group management information.

According to another aspect of the present disclosure, there is provided a multicast management apparatus, the apparatus including:

the terminal comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring first terminal capability information of a first terminal, and the first terminal capability information is used for indicating at least one terminal capability supported by the first terminal;

a determining module, connected to the obtaining module, configured to determine group management information of the terminal group according to the first terminal capability information, where the terminal group is a terminal group associated with the first terminal, the group management information is used to manage terminal capabilities or network configuration information used by all terminals in the terminal group, and the network configuration information is used to configure communication parameters of each terminal in the terminal group;

and the transmission module is connected with the determination module and used for sending the group management information.

According to another aspect of the present disclosure, there is provided a multicast management apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method.

In various aspects of the embodiment of the disclosure, after a first terminal joins in a terminal group, terminal capabilities used by all terminals in the terminal group are determined, so as to obtain group management information, and the group management information is dynamically updated in a multicast manner, so as to ensure that terminal capability information used by all terminals in the terminal group can be updated in real time when a new terminal joins in the terminal group, so as to manage terminal capabilities used by all terminals.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present disclosure.

Fig. 2 shows a flow diagram of a multicast management method according to an embodiment of the present disclosure.

Fig. 3 shows a flow diagram of a multicast management method according to an embodiment of the present disclosure.

Fig. 4 shows a block diagram of a multicast management apparatus according to an embodiment of the present disclosure.

Fig. 5 shows a block diagram of a multicast management apparatus according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

The embodiments provided in the embodiments of the present disclosure may be applied to a 5G (5generation) communication system, may also be applied to a 2G, 4G, or 3G communication system, may also be applied to a satellite communication system, and may also be applied to various communication systems of subsequent evolution, such as 6G, 7G, and the like.

The disclosed embodiments are also applicable to different network architectures including, but not limited to, relay network architectures, dual link architectures, and Vehicle-to-event architectures.

The 5G CN according to the embodiment of the present disclosure may also be referred to as a new core (new core), a 5G new core, a Next Generation Core (NGC), or the like. The 5G-CN is set independently of an existing core network, such as an Evolved Packet Core (EPC).

The network element device in the embodiments of the present disclosure may be a Base Station (BS), which may also be referred to as a base station device, and is a device deployed in a radio access network to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS) and a Base Station Controller (BSC), the device providing the base station function in the 3G network includes a node B (NodeB) and a Radio Network Controller (RNC), the device providing the base station function in the 4G network includes an evolved node B (eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an access point (access point, AP), the device providing the base station function in the 5G New Radio (New Radio, NR) includes a node B (gnb) that continues to evolve, and the device providing the base station function in a future New communication system, etc.

The terminal in the embodiments of the present disclosure, which may also be referred to as a User Equipment (ue), may refer to various types of access terminals, subscriber units, subscriber stations, Mobile Stations (MS), remote stations, remote terminals, Mobile devices, User terminals, terminal devices (terminal devices), wireless communication devices, User agents, or User devices. The user equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a user equipment in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., which is not limited by the embodiments of the present disclosure.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present disclosure. The embodiments of the present disclosure may be applied to a communication system as shown in fig. 1. In the embodiment of the present disclosure, a unidirectional communication link from the network element device 12 to the user equipment UE is defined as a downlink DL, data transmitted on the downlink is downlink data, and a transmission direction of the downlink data is referred to as a downlink direction; and the unidirectional communication link from the UE to the network element device 12 is an uplink UL, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

In one example, terminals within a terminal group may communicate with terminals via sidelink.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The term "connected" in the embodiments of the present disclosure refers to various connection methods such as direct connection or indirect connection, so as to implement communication between devices.

The expression "network" and "system" appearing in the embodiments of the present disclosure are the same concept, and the communication system is a communication network. The term "connected" in the embodiments of the present disclosure refers to various connection manners, such as direct connection or indirect connection, for example, different devices are connected through a communication interface, and is not limited at all.

In the NR V2X communication system, unicast communication and multicast communication are introduced. The multicast is a one-to-one group (including multiple) communication mode, and a typical application scenario of the multicast is a terminal group (such as a fleet). The fleet of vehicles, the creator of the fleet or the manager, is responsible for the management of the fleet, which allows multiple vehicles to dynamically form a queue to travel together. Specifically, the administrator needs to control the joining or leaving of group members within the fleet, as well as the disseminating of the fleet. In addition, the manager needs to update the surrounding traffic data reported by the group members in real time and report the data to the base station. Meanwhile, the manager needs to receive information such as remote road conditions and traffic information and share the information in real time in the fleet.

The inventors have noted that in current NR V2X multicast communications, the related art is generally not dynamically updatable due to changes in the fleet by pre-configuring capability information or setting default capability information. In fact, the capability information used in the fleet should be changed due to the joining and leaving of the terminal, and the related art cannot solve the problem of dynamic change of the capability information.

Referring to fig. 2, fig. 2 is a flowchart illustrating a multicast management method according to an embodiment of the present disclosure.

As shown in fig. 2, the method includes:

step S11, obtaining first terminal Capability information of a first terminal, wherein the first terminal Capability information is used for indicating at least one terminal Capability (UE Capability) supported by the first terminal;

step S12, determining group management information of the terminal group according to the first terminal capability information, where the terminal group is a terminal group associated with the first terminal, and the group management information is used to manage terminal capabilities or network configuration information used by all terminals in the terminal group;

step S13, sending the group management information.

Through the method, the multicast management method provided by the embodiment of the disclosure can determine the terminal capabilities used by all terminals in the terminal group after the first terminal is added into the terminal group or the capabilities of the first terminal are updated, so as to obtain the group management information, and dynamically update the group management information, so as to ensure that the terminal capability information used by all terminals in the terminal group can be updated in real time when a new terminal is added into the terminal group or after the capabilities of any terminal in the group are updated, so as to manage the terminal capabilities used by all terminals.

In a possible implementation, the terminal group may be a V2X terminal group or a Sidelink terminal group, or another type of terminal group, and this is not limited by the embodiments of the present disclosure.

In one possible embodiment, the group management information may be transmitted using multicast.

In a possible implementation manner, the multicast management method may be applied to a management terminal of a terminal group.

In one example, the management terminal may control joining or leaving of terminals of the terminal group, dismissal of the terminal group, report peripheral traffic data to the terminals of the terminal group (for example, the peripheral traffic data may be reported in real time, and may receive information such as a long-distance road condition and traffic information and be shared in real time in a fleet), communicate with the network element device, and the like, that is, the group management information may further include various control instructions and various report information.

Of course, the above description of the management terminal is exemplary and should not be taken as limiting the present disclosure.

In a possible implementation manner, the terminal group may include at least one terminal, and the present disclosure does not limit the number and types of terminals included in the terminal group, which may be determined by those skilled in the art as needed.

In one possible implementation, the terminal capability information of the terminal may include various network communication capabilities supported by the terminal, such as radio access technologies, frequencies, bandwidths, modulation schemes, carrier sets, and the like.

In one example, the radio access technologies may include, for example, 3G, 4G, 5G, and so on.

In one example, the frequencies may include frequency bands FR1, FR2, etc., where FR1 represents a frequency range of 450MHz-6000MHz and FR2 represents a frequency range of 24.250GHz-52.600 GHz.

In one example, the bandwidth may be 0 to 100Mbps (bit per second).

In one example, the Modulation scheme may include 64-QAM (Quadrature Amplitude Modulation), 256-QAM, or the like.

Of course, the above description of the terminal capability is exemplary and should not be considered as a limitation of the present disclosure, and the terminal capability may also include others (for example, the maximum transmission rate, the maximum number of carriers, the maximum number of time slots, etc.), that is, the terminal capability information of the terminal may also include a plurality of capabilities supported by the terminal.

The embodiment of the present disclosure does not limit how to obtain the specific implementation of the terminal capability information, and those skilled in the art can implement the terminal capability information by referring to the related art.

Different terminals may support different terminal capabilities, and when different terminals form a terminal group, in order to achieve accuracy, real-time performance, and effectiveness of mutual communication between terminals in the terminal group, it is necessary that terminal capability items included or related to capability information of each terminal in the terminal group are the same, for example, the capability information of each terminal includes 5 items of a radio access technology, a frequency, a bandwidth, a modulation mode, and a carrier set, but specific parameters of the items may be different (for example, the bandwidth is different, the modulation mode is different, and the like).

Referring to fig. 3, fig. 3 is a flowchart illustrating a multicast management method according to an embodiment of the present disclosure.

In a possible implementation, the step S12 of determining the group management information of the terminal group according to the first terminal capability information includes:

step S121, determining second terminal capability information according to the first terminal capability information, wherein the second terminal capability information is used for indicating the terminal capability used by all terminals in the terminal group;

and step S122, obtaining the group management information according to the second terminal capability information.

Through the method, the embodiment of the disclosure can determine the second terminal capability information according to the first terminal capability information, obtain the group management information according to the second terminal capability information, and ensure that the terminal capability information used by all terminals in the terminal group can be updated in real time when a new terminal is added to the terminal group or after the capability of any terminal in the group is updated, thereby managing the terminal capability used by all terminals.

In a possible implementation, the group management information may include second terminal capability information, where the second terminal capability information is used to indicate terminal capabilities used by all terminals in the terminal group.

In a possible implementation manner, any terminal capability in the group management information (second terminal capability information) is the lowest terminal capability among the terminal capabilities of all terminals in the terminal group associated with the first terminal. For example, the terminal group associated with the first terminal includes the first terminal, and the terminal 1 and the terminal 2, where the terminal capability of the "modulation scheme" is 64QAM, 256QAM, and 64QAM, respectively, and then the terminal capability of the "modulation scheme" in the second terminal capability information is the lowest terminal capability among the terminal capabilities, that is, the "modulation scheme" is 64QAM ". Therefore, all terminals in the terminal group after the first terminal is added or the terminal group associated with the first terminal after the first terminal capacity is updated can use the terminal capacity in the second terminal capacity information.

In a possible implementation manner, any terminal capability in the second terminal capability information is an intersection of the terminal capabilities of all terminals in the terminal group associated with the first terminal. In one example, in a case where a certain terminal capability indicated by the first terminal capability information belongs to a subset of corresponding each terminal capability indicated by the third terminal capability information, the first terminal capability information is taken as the second terminal capability information. For example, the terminal group associated with the first terminal includes the first terminal, and the terminal 1 and the terminal 2, where in the terminal capability of the "modulation scheme", the modulation schemes supported by the first terminal are 32QAM and 64QAM, the modulation schemes supported by the terminal 1 are 64QAM, 128QAM, and 256QAM, and the modulation schemes supported by the terminal 2 are 64QAM and 256QAM, it may be determined that the intersection is 64QAM, and then in the second terminal capability information, the terminal capability of the "modulation scheme" is the "modulation scheme 64 QAM". Of course, in other examples, the lowest terminal capability 32QAM may be adopted (terminal 2 supports 32QAM by default). When the first terminal joins the terminal group or the capability of the first terminal is updated, the terminal capability indicated by the first terminal capability information of the first terminal may be compared with the terminal capability supported by the terminal group before the first terminal joins the terminal group or before the first terminal is updated, so as to determine the second terminal capability information, and obtain the group management information according to the second terminal capability information, and the following describes an exemplary possible implementation manner for obtaining the group management information.

In one possible implementation, as shown in fig. 3, the step S121 of determining the second terminal capability information according to the first terminal capability information may include:

in a possible implementation manner, as shown in fig. 3, the step S122 obtaining the group management information according to the second terminal capability information may include:

In a possible implementation manner, the "comparing respectively" described in this embodiment of the disclosure may include comparing the corresponding (or the same item or type of) terminal capabilities, for example, comparing the bandwidth of the first terminal with the bandwidth of the terminal group, comparing the modulation scheme of the first terminal with the modulation scheme of the terminal group, and the like.

Through the method, the embodiment of the disclosure can compare at least one terminal capability indicated by the first terminal capability information with at least one capability of the terminal group respectively, so as to determine the second terminal capability information, and determine the terminal capabilities used by all terminals in the terminal group in real time when a new terminal joins the terminal group or the capabilities of the existing terminals in the terminal group are updated, thereby ensuring accurate and effective communication among the terminals in the terminal group.

For example, assuming that the terminal group includes 3 terminals, which are terminal 1, terminal 2, and terminal 3, respectively, and assuming that terminal 1 is a management terminal of the terminal group, when a first terminal joins the terminal group or a capability of the first terminal is updated, terminal 1 may determine second terminal capability information according to first terminal capability information of the first terminal and third capability information of terminals 1, 2, and 3.

In a possible implementation manner, the determining the second terminal capability information according to the comparison result may include:

The following is an exemplary description taking the terminal capabilities of the bandwidth and modulation scheme as an example.

In one example, assuming that the bandwidth supported by the first terminal indicated by the first terminal capability information is 85Mbps, the modulation scheme is 64QAM, and the bandwidth used by all terminals in the V2X terminal group is 95Mbps, and the modulation scheme is 256QAM (third capability information), then according to "in the case that each terminal capability indicated by the first terminal capability information is lower than the corresponding terminal capability indicated by the third terminal capability information, the first terminal capability information is taken as the second terminal capability information", when the first terminal is added to the terminal group or the first terminal is subjected to capability update, the bandwidth in the second terminal capability information of the terminal group is determined to be 85Mbps, and the modulation scheme is 64QAM, so that, by the above method, the present disclosure can ensure that after a new terminal (first terminal) is added or after the capability of any existing terminal (first terminal) in the terminal group is updated, the updated second terminal capability information of the V2X terminal group can be supported by all terminals in the terminal group, so that the second terminal capability information of the terminal group is dynamically determined, and all terminals in the terminal group can establish stable and effective communication connection, thereby accurately and effectively performing communication.

In one example, assuming that a bandwidth supported by a first terminal indicated by first terminal capability information is 85Mbps, a modulation scheme is 256QAM, a bandwidth used by all terminals of a terminal group is 90Mbps, and a modulation scheme is 64QAM (third capability information), according to "in a case where K terminal capabilities indicated by the first terminal capability information are respectively lower than corresponding K terminal capabilities indicated by the third terminal capability information, obtain the second terminal capability information according to the K terminal capabilities indicated by the first terminal capability information and other terminal capabilities except the K terminal capabilities in the third terminal capability information", when the first terminal is added to the terminal group or the first terminal capability is updated, it may be determined that the bandwidth in the second terminal capability information of the terminal group is 85Mbps, and the modulation scheme is 64QAM, such that, by the above method, the embodiment of the disclosure can ensure that after a new terminal (first terminal) is added or the capability of any existing terminal (first terminal) in the terminal group is updated, the updated second terminal capability information of the terminal group can be supported by all terminals in the terminal group, so that the second terminal capability information of the terminal group is dynamically determined, all terminals in the terminal group can establish stable and effective communication connection, and communication can be accurately and effectively performed.

In one example, assuming that the bandwidth supported by the first terminal indicated by the first terminal capability information is 100Mbps, the modulation scheme is 256QAM, the bandwidth used by all terminals in the terminal group is 90Mbps, and the modulation scheme is 64QAM (third capability information), then according to "in the case that the capability of each terminal indicated by the first terminal capability information is respectively higher than the corresponding capability of each terminal indicated by the third terminal capability information, the third terminal capability information is used as the second terminal capability information", when the first terminal is added to the terminal group or the first terminal capability is updated, the bandwidth in the second terminal capability information of the terminal group can be determined to be 90Mbps and the modulation scheme to be 64QAM, so that, by the above method, the embodiment of the present disclosure can ensure that after a new terminal (first terminal) is added or after the capability of any existing terminal (first terminal) in the terminal group is updated, the updated second terminal capability information of the terminal group can be used by all terminals in the terminal group, so that the second terminal capability information of the terminal group is dynamically determined, all terminals in the terminal group can establish stable and effective communication connection, and communication is accurately and effectively carried out.

In one possible embodiment, the second terminal capability information may be the lowest terminal capability information used by all terminals of the terminal group, i.e. the terminal capability that can be used by all terminals in the terminal group. When the member or member capability of the terminal group changes, the management terminal can determine the second terminal capability information of the terminal group in real time, determine the group management information according to the second terminal capability information, and send the updated group management information (including the second terminal capability information) to all or part of the terminals in the terminal group as a multicast object, thereby ensuring that all the terminals in the terminal group can keep effective and accurate communication connection.

When each terminal of the terminal group receives the group management information multicast by the management terminal, each terminal can generate network configuration information according to the second terminal capability information carried by the group management information, thereby realizing the configuration of the network, and after the network configuration is completed, each terminal of the terminal group can realize mutual communication.

In a possible implementation manner, any terminal capability in the group management information is an intersection of the terminal capabilities of all terminals in the terminal group associated with the first terminal, and the determining the second terminal capability information according to the comparison result may further include:

Through the above method, in the embodiment of the present disclosure, when there is an intersection between the terminal capability indicated by the first terminal capability information and the terminal capability indicated by the third terminal capability information, the terminal capability corresponding to the intersection may be used as the second terminal capability information, so as to dynamically determine and update the second terminal capability information of the terminal group. In one example, the first terminal capability information is taken as the second terminal capability information in case the terminal capability indicated by the first terminal capability information belongs to a subset of the corresponding terminal capability indicated by the third terminal capability information.

For example, assuming that the terminal group includes the terminal 1 and the terminal 2, and the determination of the capability information is described by taking a frequency as an example, assuming that the frequency in the third terminal capability information is 80MHz to 100MHz and the frequency in the first terminal capability information is 80MHz to 90MHz, the frequency in the second terminal capability information may be determined to be 80MHz to 90MHz according to "when the terminal capability indicated by the first terminal capability information belongs to the subset of the corresponding terminal capability indicated by the third terminal capability information, the first terminal capability information is taken as the second terminal capability information".

In one example, the third terminal capability information is taken as the second terminal capability information in case the terminal capability indicated by the third terminal capability information belongs to the subset of the terminal capability indicated by the first terminal capability information.

For example, assuming that the terminal group includes the terminal 1 and the terminal 2, and the determination of the capability information is described by taking a frequency as an example, assuming that the frequency in the third terminal capability information is 80MHz to 90MHz and the frequency in the first terminal capability information is 80MHz to 100MHz, the frequency in the second terminal capability information may be determined to be 80MHz to 90MHz according to "when the terminal capability indicated by the third terminal capability information belongs to the subset of the terminal capability indicated by the first terminal capability information, the third terminal capability information is taken as the second terminal capability information".

In one example, in a case where the terminal capability indicated by the first terminal capability information and the terminal capability indicated by the third terminal capability information are not subsets of each other, but there is an intersection between the terminal capabilities indicated by the first terminal capability information and the terminal capabilities indicated by the third terminal capability information, the terminal capability corresponding to the intersection is taken as the second terminal capability information.

For example, assuming that the terminal group includes the terminal 1 and the terminal 2, and the determination of the capability information is described by taking a frequency as an example, and assuming that the frequency in the third terminal capability information is 80MHz to 90MHz and the frequency in the first terminal capability information is 85MHz to 100MHz, the frequency in the second terminal capability information may be determined to be 85MHz to 90MHz, based on the fact that "the terminal capability indicated by the first terminal capability information and the terminal capability indicated by the third terminal capability information are not subsets of each other but have an intersection, and the terminal capability corresponding to the intersection is taken as the second terminal capability information".

Of course, the above description is exemplary, the management terminal may generate network configuration information according to the second terminal capability information in addition to multicasting the second terminal capability information, and after obtaining the network configuration information, may multicast the network configuration information to each terminal of the terminal group, and each terminal may perform network configuration according to the network configuration information.

In one possible embodiment, the group management information includes network configuration information that may be used to configure the communication network of each terminal in the group of terminals.

In a possible implementation manner, the step S122 of obtaining the group management information according to the second terminal capability information may further include:

generating network configuration information according to second terminal capability information, wherein the second terminal capability information is used for indicating terminal capabilities used by all terminals in the terminal group;

In one example, assuming that the UE supports FR1 as indicated in the second terminal capability information, the UE may be configured to FR1, and the specific configuration procedure includes physical layer and higher layer parameter settings, thereby obtaining network configuration information.

The method for obtaining the network configuration information according to the second terminal capability information is not limited in the embodiment of the present disclosure, and the specific type of the network configuration information included in the network configuration information is also not limited (for example, the network configuration information may include physical layer control information, high layer parameters, and the like), and those skilled in the art may implement the method with reference to the related technology.

Through the method, the embodiment of the disclosure can multicast the group management information when obtaining the network configuration information according to the second terminal capability information and generating the group management information according to the network configuration information, and can directly configure the network by using the network configuration information in the group management information after each terminal of the terminal group receives the group management information.

Referring to fig. 4, fig. 4 is a block diagram of a multicast management apparatus according to an embodiment of the present disclosure.

The apparatus may be applied in a UE, and as shown in fig. 4, the apparatus includes:

an obtaining module 10, configured to obtain first terminal capability information of a first terminal, where the first terminal capability information is used to indicate at least one terminal capability supported by the first terminal;

a determining module 20, connected to the obtaining module 10, configured to determine group management information of the terminal group according to the first terminal capability information, where the terminal group is a terminal group associated with the first terminal, the group management information is used to manage terminal capabilities or network configuration information used by all terminals in the terminal group, and the network configuration information is used to configure communication parameters of each terminal in the terminal group;

a transmission module 30, connected to the determination module, for sending the group management information.

In various aspects of the embodiment of the disclosure, after a first terminal joins in a terminal group, terminal capabilities used by all terminals in the terminal group are determined, so as to obtain group management information, and the group management information is dynamically updated in a multicast manner, so as to ensure that the terminal capability information used by all terminals in the terminal group can be updated in real time when a new terminal joins in the terminal group, so as to manage the terminal capabilities used by all terminals.

It should be noted that the multicast management apparatus is an apparatus corresponding to the foregoing multicast management method, and for a specific introduction, please refer to the description of the multicast management method, which is not described herein again.

Through the above apparatus, the embodiment of the present disclosure may obtain the network configuration information according to the second terminal capability information, and generate the group management information according to the network configuration information, and may perform multicast on the group management information, and after each terminal of the terminal group receives the group management information, may directly configure the network using the network configuration information in the group management information, so that, for each terminal of the terminal group, a process of generating the network configuration information according to the second terminal capability information may be omitted, and thus, the configuration of the network may be quickly achieved.

Referring to fig. 5, fig. 5 is a block diagram of a multicast management apparatus according to an embodiment of the present disclosure. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 5, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the device 800 to perform the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 1932, is also provided that includes computer program instructions executable by the processing component 1922 of the apparatus 1900 to perform the above-described methods.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A method for multicast management, the method comprising:

and sending the group management information.

2. The method of claim 1, wherein determining group management information for the group of terminals based on the first terminal capability information comprises:

3. The method of claim 2, wherein any terminal capability in the group management information is the lowest terminal capability among the terminal capabilities of all terminals in the terminal group associated with the first terminal, and wherein determining the second terminal capability information according to the first terminal capability information comprises:

4. The method of claim 3, wherein the determining the second terminal capability information according to the comparison result comprises:

5. The method of claim 3, wherein the determining the second terminal capability information according to the comparison result comprises:

6. The method of claim 3, wherein the determining the second terminal capability information according to the comparison result comprises:

7. The method of claim 3, wherein any terminal capability in the group management information is an intersection of the terminal capabilities of all terminals in the terminal group associated with the first terminal, and wherein determining the second terminal capability information according to the comparison comprises:

8. The method of claim 2, wherein obtaining the group management information according to the second terminal capability information comprises:

9. A multicast management apparatus, the apparatus comprising:

10. A multicast management apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

performing the multicast management method according to any of claims 1-8.

11. A non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of any of claims 1 to 8.