WO2016119148A1 - 终端设备、网络设备和组通信的方法 - Google Patents

终端设备、网络设备和组通信的方法 Download PDF

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Publication number
WO2016119148A1
WO2016119148A1 PCT/CN2015/071763 CN2015071763W WO2016119148A1 WO 2016119148 A1 WO2016119148 A1 WO 2016119148A1 CN 2015071763 W CN2015071763 W CN 2015071763W WO 2016119148 A1 WO2016119148 A1 WO 2016119148A1
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WIPO (PCT)
Prior art keywords
message
group
terminal device
rnti
services
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PCT/CN2015/071763
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English (en)
French (fr)
Inventor
胡振兴
李秉肇
高永强
张戬
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to ES15879359T priority Critical patent/ES2788903T3/es
Priority to PCT/CN2015/071763 priority patent/WO2016119148A1/zh
Priority to BR112017016002-1A priority patent/BR112017016002B1/pt
Priority to CN201580068024.3A priority patent/CN107005817B/zh
Priority to CN202010917566.6A priority patent/CN112203237B/zh
Priority to EP15879359.6A priority patent/EP3244643B1/en
Priority to JP2017539630A priority patent/JP6472889B2/ja
Publication of WO2016119148A1 publication Critical patent/WO2016119148A1/zh
Priority to US15/663,162 priority patent/US10271181B2/en
Priority to US16/296,819 priority patent/US10547985B2/en

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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/023—Selective call receivers with message or information receiving capability

Definitions

  • Embodiments of the present invention relate to the field of mobile communications, and, more particularly, to a method of terminal equipment, network equipment, and group communication.
  • Group communication refers to a mechanism in which a group of UEs communicate with each other. In group communication, only one UE in a group of UEs allows speech, and the remaining UEs receive voice content of the speaking UE through downlink.
  • group communication is generally completed by a group communication server, and each UE in a group of UEs establishes a signaling connection and a voice connection with the group server to implement group communication, and the group communication server will authorize a certain UE to speak by signaling, and The downlink voice of the speaking UE is communicated to other UEs in the group.
  • the session initiation protocol (English: Session Initiation Protocol, short message: SIP) signaling is used to request the right to the group communication server, and after the group communication server grants the UE the right to speak, the speaking UE can start to the group.
  • Other UEs transmit voice, and the same group of communication servers notify other UEs in the group to start listening to the call through SIP signaling.
  • the simplest implementation mode is that the group communication adopts the same processing mode as the normal voice communication, that is, each UE needs a separate downlink voice channel to transmit voice messages on the access network side, such processing.
  • the method needs to separately send the same voice message to each UE, thus causing waste of wireless resources.
  • Embodiments of the present invention provide a terminal device, a network device, and a group communication method, which can implement group communication.
  • the first aspect provides a terminal device, including: a first receiving module, where the first receiving module is configured to receive a first message sent by a network device, where the first message includes at least one group service identifier, and the first message The group service identifier corresponds to a group service; the second receiving module is configured to receive, according to the first message received by the first receiving module, a first group service identifier corresponding to the terminal device The first group of businesses.
  • the terminal device includes: a third receiving module, where the third receiving module is configured to receive configuration information of the first message, The first receiving module of the terminal device receives the first message according to the configuration message of the first message, where the configuration information of the first message received by the third receiving module includes the following information At least one of: the network device sends a time pattern of the first message, a first RNTI, and a modulation and coding manner of the first message.
  • the time pattern that the network device that is received by the third receiving module sends the first message includes the following At least one of the information: a change period of the first message, a repetition coefficient of the first message, and a time offset of the first message.
  • the first receiving module includes a first receiving unit: when the third receiving module When the received configuration information includes the first RNTI, the first receiving unit is configured to receive the first downlink control information according to the first RNTI, and configured to use, according to the first downlink control information, Receiving the first message; when the first RNTI is not included in the configuration information received by the third receiving module, the first receiving unit is configured to receive the first according to the first default RNTI The downlink control information is used to receive the first message according to the first downlink control information.
  • the second receiving module is configured to receive the first group of services according to the first message received by the first receiving module.
  • the first message received by the first receiving module further includes At least one of the following information: a period in which the network device sends the first message, a change period of the first message, a time offset of each group service corresponding to the at least one group service identifier, and a second RNTI and the logical channel number of each of the group services.
  • the second receiving module includes a second receiving unit: when When the second message includes the second RNTI, the second receiving unit is configured to receive second downlink control information according to the second RNTI, and configured to receive the first group of services according to the second downlink control information. When the second message does not include the second RNTI, the second receiving unit is configured to receive the second downlink control information according to the second default RNTI, according to the second The row control information receives the first set of services.
  • the second receiving module further includes a third receiving unit, where the third receiving unit is configured to: The second downlink control information received by the second receiving unit receives a MAC PDU; when the first message received by the first receiving module includes the logical channel number of each group, according to the Receiving, by the first receiving module, a logical channel number of the first group of services, receiving a MAC SDU of the first group of services received by the second receiving module, and receiving, by the first receiving module, the first message
  • the MAC SDU of the first group of services received by the second receiving module is received according to the first group of service identifiers when the logical channel number of each group of services is not included.
  • the MAC PDU received by the second receiving module carries a MAC CE, where A group of business ends.
  • the terminal device further includes: a determining module, where the determining module is used by Determining, according to the change indication information, that the first message received by the first receiving module is changed, where the change indication information includes: indication information of the first message change carried in the paging message; or an SIB1 message The indication information of the first message change carried in the first message; or the first message carried in the first downlink control information is changed when the second receiving module receives the first downlink control information Instructions
  • the first receiving module is further configured to: if the terminal device Not storing the first message, receiving the first message when the network device sends the multicast control information; if the terminal device has stored the multicast control information, and determining the first message When the message is changed, the changed first message is received at the time when the network device sends the changed first message, so that the changed first group of services is received according to the changed first message.
  • a network device including: a first sending module, where the first sending module is configured to send a first message to a terminal device, where the first message includes at least one group service identifier, and one of the group services And the second sending module is configured to send the group service corresponding to the at least one group service identifier to the terminal device.
  • the network device The third sending module is further configured to: send the configuration information of the first message, so that the terminal device receives the first message according to the configuration information of the first message;
  • the configuration information of the first message includes at least one of the following information: a time pattern of sending the first message, a first RNTI, and a modulation and coding manner of the first message.
  • the time pattern of the first message sent by the third sending module includes at least one of the following information And a change period of the first message, a repetition coefficient of sending the first message, and a time offset of the first message.
  • the first message that is sent by the first sending module further includes At least one of the following: a period in which the first message is sent, a change period of the first message, a time offset of each group of services in the at least one group of services, a second RNTI, and each of The logical channel number of the group service.
  • the first sending module is further configured to: Sending the indication information of the first message change, including: sending a paging message carrying the indication information to the terminal device; or sending an SIB1 message carrying the indication information to the terminal device; or to the terminal The device sends first downlink control information that carries the indication information.
  • a third aspect provides a method for group communication, including: receiving, by a terminal device, a first message sent by a network device, where the first message includes an identifier of at least one group service, and an identifier of the group service corresponds to a group service.
  • the terminal device receives the first group of services corresponding to the first group of service identifiers of the terminal device according to the first message.
  • the method includes: receiving, by the terminal device, configuration information of the first message, to receive, according to configuration information of the first message, The first message, where the configuration information of the first message includes at least one of the following information: a time pattern of the first message sent by the network device, a first RNTI, and a modulation code of the first message the way.
  • the time pattern of the first message sent by the network device includes at least one of the following information: a change period of the first message, a repetition coefficient of the first message, and a time offset of the first message.
  • the terminal device receives configuration information of the first message, according to the foregoing Receiving, by the configuration information of a message, the first message, when the configuration information includes the first RNTI, the terminal device receives, according to the first RNTI, first downlink control information, according to the The first downlink control information receives the first message; when the first RNTI is not included in the configuration information, the terminal device receives the first downlink control information according to the first default RNTI, according to the The downlink control information receives the first message.
  • the terminal device receives the first group of services according to the first message.
  • the first message further includes at least one of the following information: a period in which the network device sends the first message, a change period of the first message, a time offset of each group service in the at least one group service, a second RNTI, and a logical channel of each group service number.
  • the terminal device receives, according to the first message,
  • the first group of services corresponding to the first group of service identifiers of the terminal device includes: when the first message includes the second RNTI, the terminal device receives the second downlink control information according to the second RNTI, Receiving, according to the second downlink control information, the first group of services; when the first message does not include the second RNTI, the terminal device receives the second downlink control information according to the second default RNTI. And configured to receive the first group of services according to the second downlink control information.
  • the terminal device receives, according to the first message, a first group of service identifiers with the terminal device Corresponding the first group of services, the terminal device receiving the MAC PDU according to the second downlink control information; when the first message includes the logical channel number of each group service, the terminal device is configured according to the The logical channel number of the first group of services in the logical channel number of each group service, receiving the MAC SDU of the first group of services; and not including the logic of each group service in the first message Receiving, by the terminal device, the terminal device according to the first group of service identifiers MAC SDU of the first group of services.
  • the MAC PDU carries a MAC CE, and is used to indicate that the first group of services ends.
  • the method further includes: the terminal device according to the change indication information, Determining that the first message is changed, where the change indication information includes: indication information of the first message change carried in the paging message; or indication information of the first message change carried in the SIB1 message; Or the indication information of the first message change carried in the first downlink control information when the terminal device receives the first downlink control information.
  • the receiving, by the terminal device, the first message sent by the network device includes: The terminal device does not store the first message, and receives the first message at a time when the network device sends the multicast control information; if the terminal device has stored the multicast control information, and determines The first message is changed, and the changed first message is received at a time when the network device sends the changed first message, so as to receive the changed first according to the changed first message. Group business.
  • the fourth aspect provides a method for group communication, which includes: sending a first message to a terminal device, where the first message includes an identifier of at least one group service, and an identifier of the group service corresponds to a group. And transmitting the at least one group service to the terminal device.
  • the method further includes: sending configuration information of the first message, so that the terminal device is configured according to the configuration information of the first message Receiving the first message; where the configuration information of the first message includes at least one of the following information: a time pattern of sending the first message, a first RNTI, and a modulation and coding manner of the first message.
  • the time pattern for sending the first message includes at least one of the following information: a change period of a message, a repetition factor of the first message, and a time offset of the first message.
  • the first message further includes at least one of the following information: Transmitting the period of the first message, the change period of the first message, the at least one group The time offset of each group of services corresponding to the service identifier, the second RNTI, and the logical channel number of each group of services.
  • the method further includes: sending the foregoing to the terminal device
  • the information indicating that the message is changed includes: sending a paging message carrying the indication information to the terminal device; or sending an SIB1 message carrying the indication information to the terminal device; or sending a carrier to the terminal device The first downlink control information of the indication information.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 1 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of a terminal device according to another embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a network device according to an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of a network device according to another embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for group communication according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a method for group communication according to another embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a method for group communication according to still another embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of a method for group communication according to still another embodiment of the present invention.
  • FIG. 9 is a schematic block diagram of a terminal device according to another embodiment of the present invention.
  • FIG. 10 is a schematic block diagram of a network device according to another embodiment of the present invention.
  • the terminal equipment (English: Terminal Equipment) may be a user equipment (English: User Equipment, UE for short), a customer premises equipment (English: Customer Premise Equipment, CPE for short), and a mobile station.
  • UE User Equipment
  • CPE Customer Premise Equipment
  • the terminal device can communicate with one or more core networks via a radio access network (English: Radio Access Network, RAN for short)
  • a radio access network English: Radio Access Network, RAN for short
  • the terminal device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device, and wireless
  • the access network exchanges language and/or data, and the present invention is not limited. However, for convenience of description, the following embodiments will be described by taking a UE as an example.
  • the network device may be a base station, an enhanced base station, a cell, or a relay.
  • the base station may be an evolved base station in the LTE (English: Evolutional Node B, referred to as eNB or e-NodeB).
  • eNB Evolutional Node B
  • e-NodeB Evolutional Node B
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 1 is a schematic block diagram of a terminal device 100 according to an embodiment of the present invention. As shown in FIG. 1 , the terminal device 100 includes a first receiving module 110 and a second receiving module 120.
  • the first receiving module 110 is configured to receive a first message sent by the network device, where the first message includes at least one group service identifier, and one group service identifier corresponds to one group service.
  • the second receiving module 120 is configured to receive, according to the first message received by the first receiving module 110, a first group of services corresponding to the first group of service identifiers of the terminal device 100.
  • the first message sent by the network device may include a group service identifier list, where the group service identifier list includes a group service identifier of the group service to be sent by the network device, and the group service identifier The list may include one or more group service identifiers, and one group service identifier corresponds to one group service.
  • the foregoing first message may be a separate broadcast message, or may be carried in other broadcast messages in the form of specific information.
  • the first message may be a multicast control channel (English: Multicast Control Channel, Referred to as MCCH) message or group configuration message or multicast control message or multicast configuration message, the invention is not limited thereto.
  • MCCH Multicast Control Channel
  • the group service identifier list may be a Temporary Mobile Group Identity (TMGI) list, and includes at least one group service corresponding TMGI, and the present invention is not limited thereto.
  • the first group of service identifiers of the terminal device 100 is a group service identifier or a group service identifier that is subscribed to by the terminal device 100.
  • the user service description obtained by the terminal device 100 is used. For the USD), obtain the group service identifier or the contracted group service identifier of interest.
  • the terminal device distinguishes and identifies the group service that needs to be received by using the group service identifier in the first message, so that the terminal device receives the group service that is desired to be received.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 2 is a schematic block diagram of a terminal device 200 according to an embodiment of the present invention.
  • the terminal device 200 includes a first receiving module 210 and a second receiving module 220. And a third receiving module 230.
  • the first receiving module 210 is configured to receive a first message sent by the network device, where the first message includes at least one group service identifier, and one group service identifier corresponds to one group service.
  • the second receiving module 220 is configured to receive, according to the first message received by the first receiving module 210, a first group of services corresponding to the first group of service identifiers of the terminal device 200.
  • the third receiving module 230 is configured to receive configuration information of the first message, where the first receiving module of the terminal device receives the first message according to the configuration message of the first message, where the configuration information of the first message received by the third receiving module includes At least one of the following information: the network device sends the first cancellation The time pattern of the interest, the modulation and coding mode of the first message, and the first RNTI.
  • the modulation and coding mode of the first message for example, the modulation mode of the first message is Quadrature Phase Shift Keying (QPSK), and the coding mode is one-third coding.
  • the modulation mode of the first message is QPSK
  • the coding mode is one-half coding, etc., and other coding or modulation modes are understood.
  • the present invention is not limited thereto; wherein the first RNTI refers to the network device used for scheduling The RNTI that sent the first message.
  • the time pattern that the network device receives the first message received by the third receiving module includes at least one of the following information: a change period of the first message, and a repetition of sending the first message.
  • the coefficient and the time offset of the first message includes at least one of the following information: a change period of the first message, and a repetition of sending the first message.
  • the change period T′ of the first message is used to instruct the terminal device to determine, after the change of the first message, the received first message sent by the network device after the change period T′, specifically, the period T′ may be 20ms, 50ms, 100ms, 500ms, etc.; the number of repetitions of sending the first message indicates the number of times the first message is repeatedly sent within one change period T', for example, specifically 2, 4, 6, 8, etc.;
  • the time offset is, for example, 0 ms, 1 ms, 2 ms, 3 ms, etc., when the time pattern of the first message does not include the time offset of the first message, the time offset of the first message is a fixed value, such as 0, 1, etc. . It is to be understood that the above-listed numerical values are merely exemplary, and other possible values of the modification period T' fall within the scope of the present invention, and the present invention is not limited thereto.
  • the first receiving module further includes a first receiving unit:
  • the first receiving unit When the configuration information received by the third receiving module includes the first RNTI, the first receiving unit is configured to receive the first downlink control information according to the first RNTI, and the third receiving module does not include the configuration information received by the third receiving module.
  • the first receiving unit is configured to receive the first downlink control information according to the first default RNTI. Specifically, if the first RNTI is included in the configuration information, the terminal device parses the first downlink control information according to the RNTI corresponding to the first group of services in the first RNTI, so as to be configured according to the first downlink control information.
  • the first default RNTI is a default RNTI used by the network device to schedule the sending of the first message.
  • the first default RNTI may be FFF4 or FFFC, etc., and the present invention is not limited thereto.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention proposes an implementation
  • the group communication method, the terminal device and the network device can not only realize single-cell point-to-multipoint group communication, but also realize that one group service only occupies one resource and sends it to all terminal devices that receive the group service, thereby reducing waste of radio resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • the second receiving module of the terminal device when the first group of service identifiers of the terminal device exists in the at least one group service identifier sent by the network device, the second receiving module of the terminal device is configured to receive according to the first receiving module.
  • the first message receives the first set of services.
  • the terminal device when the group service identifier of the terminal device does not exist in the group service identifier list sent by the network device, the terminal device will not receive the group service data sent by the network device, and only exists in the group service identifier list sent by the network device.
  • the terminal device receives the group service data corresponding to the group service identifier sent by the network device.
  • the group service to be sent by the network device is the A group service, the B group service, and the C group service
  • the group service identification list will have three group service identifiers A, B, and C.
  • the three groups of service identifiers, such as A, B, and D are marked in advance according to their own requirements. Then, the terminal device only receives the A service and the B service sent by the network side device, but cannot receive the C service.
  • the first message received by the first receiving module further includes at least one of the following information: a period in which the network device sends the first message, a change period of the first message, and at least one group service
  • the time offset of each group of services, the logical channel number of each group of services, and the second wireless network temporary identifier (English: Radio Network Temporary Identifier, abbreviated as RNTI) are identified.
  • the period T of the first message sent by the network device indicates the frequency at which the first message is sent.
  • the period T may be 20 ms, 50 ms, 100 ms, 500 ms, etc.; the change period T' of the first message
  • the period T′ is used to instruct the terminal device to determine the changed first message sent by the network device after the modification period T′ after determining that the first message is sent.
  • the period T′ may be 20 ms, 50 ms, 100 ms.
  • the logical channel number of each group of services sent by the network device is used to indicate the logical channel used by each group of services, and the logical channel number can be represented by 12 bits, such as 000000000001, or represented by 5 bits, such as 00001, Or the number of bits of any of 6 to 13 is used, the number of bits used may be a length preset by the network, or the length indicated by the first message; and the second RNTI refers to an RNTI used for scheduling group services sent by the network device. It should be understood that the second RNTI may refer to the same RNTI for scheduling multiple group services, or may be different RNTIs for scheduling multiple group services, that is, each group industry.
  • each RNTI may correspond to one or more group services.
  • the invention is not limited thereto. It is to be understood that the above-listed numerical values are merely exemplary, and other possible values of the period T or T' fall within the scope of the present invention, and the present invention is not limited thereto.
  • the second receiving module of the terminal device includes a second receiving unit: when the first message sent by the network device includes the second RNTI, the second receiving unit is configured to receive according to the second RNTI
  • the second downlink control information (English: Downlink Control Information, abbreviated as DCI); when the second message does not include the second RNTI, the second receiving unit is configured to receive the second downlink control information according to the second default RNTI.
  • DCI Downlink Control Information
  • the terminal device needs to receive the first group of services corresponding to the first group of service identifiers, and then parse the second downlink control according to the RNTI corresponding to the first group of services in the second RNTI.
  • the information is used to receive the first group of services according to the second downlink control information. If the second message does not include the second RNTI, the second downlink control information is received according to the second default RNTI.
  • the second downlink control information is downlink control information for scheduling group service data sent by the network device.
  • the second default RNTI is a default RNTI for scheduling group services sent by the network device.
  • the second default RNTI may be FFF4 or The FFFC or the like, the present invention is not limited to this.
  • the receiving, by the second RNTI or the second default RNTI, the second downlink control information is: analyzing, by using the scheduling time corresponding to the first group of services, the second downlink control information of the RNTI scrambling of the first group of services, where
  • the scheduling time of a group of services is the time when the sum of the system frame number *10 and the first group of service subframe numbers is equal to the time offset corresponding to the first group of services after the period T is modulo.
  • the second receiving module further includes a third receiving unit, where the third receiving unit is configured to receive, according to the second downlink control information received by the second receiving unit, the second receiving module, a Media Access Control Packet Data Unit (English: Media Access Control Packet Data Unit, MAC PDU for short); when the first message received by the first receiving module includes a logical channel number of each group service in at least one group service, according to The second receiving unit receives the logical channel number of the first group of services in the at least one group service, and obtains a media access control service data unit (English: Media Access Control Service Data Unit, referred to as: MAC SDU) received by the second receiving module.
  • a Media Access Control Packet Data Unit English: Media Access Control Packet Data Unit, MAC PDU for short
  • the MAC SDU of the first group of services received by the second receiving module is obtained according to the first group of service identifiers.
  • the foregoing MAC PDU refers to a packet data unit that includes a MAC SDU of at least one group service, and the present invention is not limited thereto.
  • the A can be utilized.
  • the channel number A corresponding to the group service is used to find the corresponding A channel, the channel number B corresponding to the B group service, and the channel C corresponding to the C group service, and the MAC SDU received by the second receiving module is obtained;
  • the A, B, and C group services obtain the MAC SDU corresponding to the respective group service according to the respective group service identifiers and the channels allocated to the entire group service.
  • the MAC PDU received by the second receiving module carries a media access control control unit (English: Media Access Control Element, abbreviated as MAC CE), and is used to indicate that the first group of services ends. .
  • the MAC PDU including the MAC CE indicating the end of the service may be sent once, or repeatedly, for example, three times or five times to improve the reliability of the terminal device reception.
  • the specific implementation manner may be a group service identifier or a logical channel number of the group service that is sent by the terminal device in the MAC CE.
  • the terminal device receives the MAC CE including a certain group service identifier or a logical channel number, the terminal device considers that the service ends.
  • the specific implementation manner may be that when the MAC CE does not include the group service identifier or the logical channel number corresponding to the group service sent by the terminal device, the group service including the MAC PDU indicating the MAC CE indicating the end of the service is considered to be terminated.
  • the numbers mentioned in the embodiments of the present invention are merely exemplary.
  • the foregoing MAC CE refers to a MAC control unit that indicates the end of at least one group of services, and the present invention is not limited thereto.
  • the terminal device further includes: a determining module, configured to determine, according to the change indication message, that the first message received by the first receiving module is changed; wherein the change indication information includes: paging The indication information of the first message change carried in the message; or the indication information of the first message change carried in the system information block 1 (English: System Information Block 1, referred to as SIB1); or when the second receiving module receives the first In the case of the line control information, the indication information of the first message change carried in the first downlink control information.
  • the change indication message carrying the first message in the SIB1 message or the indication information of the first message change carried in the downlink control information of the first message may be a tag value, and the length may be 4 bits or 5 bits, etc.
  • the downlink control information may be in a format such as 1/1A/1C.
  • the terminal device carries the change indication message carrying the first message in the SIB1 message or the downlink control information carried in the first message according to the stored label value.
  • the comparison of the tag values in the indication information of a message change, if the first message is changed if it is different, it should be understood that the length values of the above-mentioned performance values are merely exemplary, and the present invention is not limited thereto.
  • the first receiving module is further configured to: if the terminal device does not If the first message is stored, the first message is received when the network device sends the multicast control information; if the terminal device has stored the multicast control information, and determines that the first message changes, the first time after the network device sends the change The time of the message receives the changed first message, so as to receive the changed first group of services according to the changed first message. If the terminal device does not store the first message, it needs to try to receive the first message every time the first message is sent, until the first message is correctly received, and the terminal device can obtain the first message by using the SIB1 message.
  • the first message in order to improve the reliability of the first message received by the user equipment, when the network device sends the first message of the repetition coefficient in a change period, the first message may be different each time.
  • the redundancy version in this way, the terminal device can improve the reliability of the user receiving the first message by combining the plurality of first messages in order to correctly receive the first message.
  • the first message in order to improve the reliability of the first message received by the user equipment, is sent in consecutive N subframes, and each subframe is sent, starting at a subframe corresponding to each first message scheduling moment.
  • the first message may be the same, or different redundancy versions may be used.
  • the terminal device may improve the reliability of receiving the first message by combining the multiple first messages to correctly receive the first message.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • the terminal device described in the embodiment of the present invention is described in detail above with reference to FIG. 1 and FIG. 2.
  • the network device according to the embodiment of the present invention will be described in detail below with reference to FIG. 3 and FIG.
  • FIG. 3 is a schematic block diagram of a network device according to an embodiment of the present invention. As shown in FIG. 3, the network device includes: a first sending module 310 and a second sending module 320.
  • the first sending module 310 is configured to send a first message to the terminal device, where the first message includes One group service identifier is less, and one group service identifier corresponds to one group service.
  • the second sending module 320 is configured to send, to the terminal device, the group service corresponding to the at least one group service identifier.
  • the first message sent by the first sending module 310 of the network device may include a group service identifier list, where the group service identifier list includes a group service identifier of the group service to be sent by the network device, where the group of service identifiers may be It includes one or more group service identifiers, and one group service identifier corresponds to one group service.
  • the foregoing first message may be an independent broadcast message, or may be carried in other broadcast messages in the form of specific information.
  • the first message may be an MCCH message or a group configuration message, and the present invention is not limited thereto. this.
  • the foregoing group service identifier list may be a TMGI list, and includes at least one group service corresponding TMGI, and the present invention is not limited thereto.
  • the group service sent by the second sending module 320 of the network device is a group service corresponding to one or more group service identifiers included in the group service identifier list, where one group service identifier corresponds to one group service.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 4 is a schematic block diagram of an improved network device according to another embodiment of the present invention.
  • the network device includes a first sending module 410, a second sending module 420, and a third sending module 430.
  • the first sending module 410 is configured to send a first message to the terminal device, where the first message includes at least one group service identifier, and one group service identifier corresponds to one group service.
  • the second sending module 420 is configured to send, to the terminal device, the group service corresponding to the at least one group service identifier.
  • the third sending module 430 is configured to send the configuration information of the first message, so that the terminal device receives the first message according to the configuration information of the first message, where the configuration information of the first message includes at least one of the following information: sending The time pattern of the first message, the modulation and coding mode of the first message, and the first RNTI.
  • the first The modulation mode of the message is quadrature phase shift keying (English: Quadrature Phase Shift Keying, abbreviated as QPSK)
  • the encoding mode is one-third encoding
  • the modulation mode of the first message is QPSK
  • the encoding mode is one-half.
  • Encoding, etc. it should be understood that there are other coding or modulation modes, and the present invention is not limited thereto; wherein, the first RNTI refers to an RNTI used by the network device to schedule transmission of the first message.
  • the time pattern of the first message sent by the third sending module includes at least one of the following information: a change period of the first message, a repetition coefficient of sending the first message, and the first message. Time offset.
  • the change period T′ of the first message is used to instruct the terminal device to determine, after the change of the first message, the received first message sent by the network device after the change period T′, specifically, the period T′ may be 20ms, 50ms, 100ms, 500ms, etc.; the number of repetitions of sending the first message indicates the number of times the first message is repeatedly sent within one change period T', for example, specifically 2, 4, 6, 8, etc.;
  • the time offset is, for example, 0 ms, 1 ms, 2 ms, 3 ms, etc., when the time pattern of the first message does not include the time offset of the first message, the time offset of the first message is a fixed value, such as 0, 1, etc. . It is to be understood that the above-listed numerical values are
  • the first message sent by the first sending module further includes at least one of the following information: a period of sending the first message, a change period of the first message, and each of the at least one group of services The time offset of the group services, the logical channel number of each group of services, and the second RNTI.
  • the period T of the first message sent by the network device indicates the frequency at which the first message is sent. Specifically, the period T may be 20 ms, 50 ms, 100 ms, 500 ms, etc.; the change period T' of the first message
  • the period T′ is used to instruct the terminal device to determine the changed first message sent by the network device after the modification period T′ after determining that the first message is sent.
  • the period T′ may be 20 ms, 50 ms, 100 ms. , 500ms, etc.; the logical channel number of each group of services sent by the network device is used to indicate the logical channel used by a certain group of services; the second RNTI is the RNTI used to schedule the group service sent by the network device, it should be understood that the second The RNTI may be the same RNTI for scheduling multiple groups of services, or may be different RNTIs for scheduling multiple groups of services, that is, each group of services must have an RNTI corresponding thereto, and each RNTI may correspond to One or more group services, the invention is not limited thereto. It is to be understood that the above-listed numerical values are merely exemplary, and other possible values of the period T or T' fall within the scope of the present invention, and the present invention is not limited thereto.
  • the first sending module is further configured to: send the terminal device Sending the indication information of the first message change, including: sending a paging message carrying the indication information to the terminal device; or sending the SIB1 message carrying the indication information to the terminal device; or sending the first downlink control information carrying the indication information to the terminal device .
  • the change indication message carrying the first message in the SIB1 message or the indication information of the first message change carried in the first downlink control information may be a tag value, and the length may be 4 bits or 5 bits, etc.
  • the downlink control information may be in a format such as 1/1A/1C.
  • the terminal device carries the change indication message of the first message or the first message carried in the first downlink control information according to the stored label value and the SIB1 message.
  • the first message in order to improve the reliability of the first message received by the user equipment, when the network device sends the first message of the repetition coefficient in a change period, the first message may be different each time.
  • the redundancy version in this way, the terminal device can improve the reliability of the user receiving the first message by combining the plurality of first messages in order to correctly receive the first message.
  • the first message in order to improve the reliability of the first message received by the user equipment, is sent in consecutive N subframes, and each subframe is sent, starting at a subframe corresponding to each first message scheduling moment.
  • the first message may be the same, or different redundancy versions may be used.
  • the terminal device may improve the reliability of receiving the first message by combining the multiple first messages to correctly receive the first message.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 1 to 4 illustrate a network device and a terminal device in detail.
  • a method for describing group communication according to an embodiment of the present invention is described below with reference to FIG. 5 and FIG.
  • FIG. 5 is a schematic flowchart of a method for group communication according to an embodiment of the present invention.
  • the respective processes in the method 500 can be implemented and implemented by the corresponding components in the terminal device 100 or the terminal device 200 according to the embodiment of the present invention. For brevity, details are not described herein again.
  • the method 500 includes:
  • the terminal device receives the first message sent by the network device, where the first message includes at least one group service identifier, and one group service identifier corresponds to one group service.
  • the terminal device receives, according to the first message, a first group of services corresponding to the first group of service identifiers of the terminal device.
  • the first message sent by the network device may include a group service identifier list, where the group service identifier list includes a group service identifier of the group service to be sent by the network device, where the group service identifier list may include one or more groups.
  • a service identifier where a group service identifier corresponds to a group service.
  • the foregoing first message may be a separate broadcast message, or may be carried in other broadcast messages in the form of specific information.
  • the first message may be a multicast control channel (English: Multicast Control Channel, Referred to as MCCH) message or group configuration message, the invention is not limited thereto.
  • MCCH Multicast Control Channel
  • the group service identifier list may be a Temporary Mobile Group Identity (TMGI) list, and includes at least one group service corresponding TMGI, and the present invention is not limited thereto.
  • the first group of service identifiers of the terminal device 100 is a group service identifier or a group service identifier that is subscribed to by the terminal device 100.
  • the user service description obtained by the terminal device 100 is used. For the USD), obtain the group service identifier or the contracted group service identifier of interest.
  • the terminal device distinguishes and identifies the group service that needs to be received by using the group service identifier in the first message, so that the terminal device receives the group service that is desired to be received.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • the terminal device receives the configuration information of the first message, to receive the first message according to the configuration information of the first message, where the configuration information of the first message includes the following information. At least one of: a time pattern in which the network device sends the first message, a modulation and coding manner of the first message, and a first RNTI.
  • the modulation mode of the first message is Quadrature Phase Shift Keying (QPSK), and the coding mode is one-third coding.
  • the modulation mode of the first message is QPSK
  • the coding mode is one-half coding, etc., and other coding or modulation modes are understood.
  • the present invention is not limited thereto; wherein the first RNTI refers to the network device used for scheduling transmission. The RNTI of the first message.
  • the time pattern of the first message sent by the network device includes at least one of the following information: a change period of the first message, a repetition coefficient of sending the first message, and a time of the first message. Offset.
  • the change period T′ of the first message is used to instruct the terminal device to determine, after the change of the first message, the received first message sent by the network device after the change period T′, specifically, the period T′ may be 20ms, 50ms, 100ms, 500ms, etc.; the number of repetitions of sending the first message indicates the number of times the first message is repeatedly sent within one change period T', for example, specifically 2, 4, 6, 8, etc.;
  • the time offset is, for example, 0 ms, 1 ms, 2 ms, 3 ms, etc., when the time pattern of the first message does not include the time offset of the first message, the time offset of the first message is a fixed value, such as 0, 1, etc. . It is to be understood that the above-listed numerical
  • the receiving, by the terminal device, the configuration information of the first message, to receive the first message according to the configuration information of the first message includes: when the first RNTI is included in the configuration information, the terminal device is configured according to the first The RNTI receives the first downlink control information. When the first RNTI is not included in the configuration information, the terminal device receives the first downlink control information according to the first default RNTI. Specifically, if the first RNTI is included in the configuration information, the terminal device parses the first downlink control information according to the RNTI corresponding to the first group of services in the first RNTI, so as to be configured according to the first downlink control information.
  • the first RNTI is a default RNTI used by the network device to schedule sending the first message.
  • the first default RNTI may be FFF4 or FFFC, etc., and the present invention is not limited thereto.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • the second receiving module of the terminal device when the first group of service identifiers of the terminal device exists in the at least one group service identifier sent by the network device, the second receiving module of the terminal device is used according to the first The first message received by the receiving module receives the first group of services.
  • the terminal device when the group service identifier of the terminal device does not exist in the group service identifier list sent by the network device, the terminal device will not receive the group service data sent by the network device, and only exists in the group service identifier list sent by the network device.
  • the terminal device receives the group service data corresponding to the group service identifier sent by the network device.
  • the group service to be sent by the network device is the A group service, the B group service, and the C group service
  • the group service identification list will have three group service identifiers A, B, and C.
  • the three groups of service identifiers, such as A, B, and D are marked in advance according to their own requirements. Then, the terminal device only receives the A service and the B service sent by the network side device, but cannot receive the C service.
  • the first message further includes at least one of the following information: a period in which the network device sends the first message, a change period of the first message, and each group corresponding to the at least one group service identifier.
  • the period T of the first message sent by the network device indicates the frequency at which the first message is sent. Specifically, the period T may be 20 ms, 50 ms, 100 ms, 500 ms, etc.; the change period T' of the first message
  • the period T′ is used to instruct the terminal device to determine the changed first message sent by the network device after the modification period T′ after determining that the first message is sent.
  • the period T′ may be 20 ms, 50 ms, 100 ms. , 500ms, etc.;
  • the logical channel number of each group of services sent by the network device is used to indicate the logical channel used by each group of services, and the logical channel number can be represented by 12 bits, such as 000000000001, or represented by 5 bits, such as 00001, Or the number of bits of any of 6 to 13 is used, the number of bits used may be a length preset by the network, or the length indicated by the first message; and the second RNTI refers to an RNTI used for scheduling group services sent by the network device.
  • the second RNTI may refer to the same RNTI for scheduling multiple group services, or may be different RNTIs for scheduling multiple group services, that is, each group industry. It is necessary to have an RNTI corresponding thereto, and each RNTI may correspond to one or more group services, and the present invention is not limited thereto. It is to be understood that the above-listed numerical values are merely exemplary, and other possible values of the period T or T' fall within the scope of the present invention, and the present invention is not limited thereto.
  • the terminal device receives, according to the first message, the first group of services corresponding to the first group of service identifiers of the terminal device, including: when the first message includes the second RNTI Receiving, by the terminal device, the second downlink control information according to the second RNTI; When the second RNTI is not included in a message, the terminal device receives the second downlink control information according to the second default RNTI. Specifically, if the second RNTI is included in the first message, the terminal device needs to receive the first group of services corresponding to the first group of service identifiers, and then parse the second downlink control according to the RNTI corresponding to the first group of services in the second RNTI.
  • the information is used to receive the first group of services according to the second downlink control information. If the second message is not included in the first message, the second downlink control information is received according to the second default RNTI, where the second default RNTI is used for scheduling.
  • the default RNTI of the group service sent by the network device for example, the second default RNTI may be FFF4 or FFFC, etc., and the present invention is not limited thereto.
  • the second downlink control information is received according to the second RNTI or the second default RNTI, and the second downlink control information that is scrambled by the RNTI of the first group of services is configured on the scheduling time corresponding to the first group of services, where the first The scheduling time of the group service is the time when the sum of the system frame number *10 and the first group of service subframe numbers is equal to the time offset corresponding to the first group of services after the period T is modulo.
  • the terminal device receives, according to the first message, the first group of services corresponding to the first group of service identifiers of the terminal device, where the terminal device receives the second downlink control information according to the second downlink control information.
  • a MAC PDU when the first message includes a logical channel number of each group of services, the terminal device receives the MAC SDU sent by the network device according to the logical channel number of the first group of services in the logical channel number of each group of services;
  • the terminal device receives the MAC SDU of the first group of services according to the first group of service identifiers.
  • the corresponding group A service may be utilized.
  • the channel number A is used to search for the corresponding A channel, the channel number B corresponding to the B group service, and the channel C corresponding to the C group service, to obtain the MAC SDU received by the second receiving module; if the first message does not include the logical channel number, Then, the services of the group A, B, and C are obtained by the second receiving module according to the respective group service identifiers and using the channels allocated to the entire group of services to receive the MAC SDUs corresponding to the respective group services.
  • the MAC PDU carries a MAC CE, which is used to indicate that the first group of services ends.
  • the MAC PDU including the MAC CE indicating the end of the service may be sent once, or repeatedly, for example, three times or five times to improve the reliability of the terminal device reception.
  • the specific implementation manner may be a group service identifier or a logical channel number corresponding to the group service sent by the terminal device in the MAC CE.
  • the specific implementation can also When the MAC CE does not include the group service identifier or the logical channel number corresponding to the group service sent by the terminal device, it is considered that all the group services included in the MAC PDU including the MAC CE indicating the end of the service ends. It is to be understood that the numbers mentioned in the embodiments of the present invention are merely exemplary, and the present invention is not limited thereto.
  • the terminal device determines, according to the change indication information, that the first message is changed, where the change indication information includes: indication information of the first message change carried in the paging message; or carried in the SIB1
  • the change indication message carrying the first message in the SIB1 message or the indication information of the first message change carried in the first downlink control information may be a tag value, and the length may be 4 bits or 5 bits, etc.
  • the downlink control information may be in a format such as 1/1A/1C.
  • the terminal device carries the change indication message carrying the first message in the SIB1 message or the first carried in the downlink control information of the first message according to the stored label value.
  • the comparison of the tag values in the indication information of the message change, if the first message is changed if it is different, it should be understood that the length value of the above-mentioned performance value is merely exemplary, and the present invention is not limited thereto.
  • the receiving, by the terminal device, the first message sent by the network device if the terminal device does not store the first message, receiving the first message when the network device sends the multicast control information; If the terminal device has stored the multicast control information and determines that the first message changes, receiving the changed first message at the time when the network device sends the changed first message, so as to receive the change according to the changed first message. After the first group of businesses. If the terminal device does not store the first message, it needs to try to receive the first message every time the first message is sent, until the first message is correctly received, and the terminal device can obtain the first message by using the SIB1 message.
  • the first message in order to improve the reliability of the first message received by the user equipment, when the network device sends the first message of the repetition coefficient in a change period, the first message may be different each time.
  • the redundancy version in this way, the terminal device can improve the reliability of the user receiving the first message by combining the plurality of first messages in order to correctly receive the first message.
  • the first message in order to improve the reliability of the first message received by the user equipment, is sent in consecutive N subframes, and each subframe is sent, starting at a subframe corresponding to each first message scheduling moment.
  • the first message may be the same, or different redundancy versions may be used.
  • the terminal device may improve the reliability of receiving the first message by combining the multiple first messages to correctly receive the first message.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 6 is a schematic flowchart of a method for group communication according to another embodiment of the present invention.
  • the respective processes in the method 600 can be implemented and implemented by the corresponding components in the terminal device 300 or the terminal device 400 according to the embodiment of the present invention. For brevity, details are not described herein again.
  • the method 600 includes:
  • S610 Send a first message to the terminal device, where the first message includes at least one group service identifier, and one of the group service identifiers corresponds to one group service.
  • S620 Send the group service corresponding to the at least one group service identifier to the terminal device.
  • the first message sent by the network device may include a group service identifier list, where the group service identifier list includes a group service identifier of the group service to be sent by the network device, where the group service identifier list may include one or more groups.
  • a service identifier where a group service identifier corresponds to a group service.
  • the foregoing first message may be an independent broadcast message, or may be carried in other broadcast messages in the form of specific information.
  • the first message may be an MCCH message or a group configuration message, and the present invention is not limited thereto. this.
  • the foregoing group service identifier list may be a TMGI list, and includes at least one group service corresponding TMGI, and the present invention is not limited thereto.
  • the group service sent by the network device is a group service corresponding to one or more group service identifiers included in the group service identifier list, where one group service identifier corresponds to one group service.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention proposes an implementation
  • the group communication method, the terminal device and the network device can not only realize single-cell point-to-multipoint group communication, but also realize that one group service only occupies one resource and sends it to all terminal devices that receive the group service, thereby reducing waste of radio resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • the configuration information of the first message includes at least one of the following information: a time pattern of sending the first message, a modulation and coding manner of the first message, and a first RNTI.
  • the modulation mode of the first message is Quadrature Phase Shift Keying (QPSK), and the coding mode is one-third coding.
  • the modulation mode of the first message is QPSK, the coding mode is one-half coding, etc., and other coding or modulation modes are understood.
  • the present invention is not limited thereto; wherein the first RNTI refers to the network device used for scheduling The RNTI that sent the first message.
  • the time pattern for sending the first message includes at least one of the following information: a change period of the first message, a repetition coefficient of the first message, and a time offset of the first message.
  • the change period T′ of the first message is used to instruct the terminal device to determine, after the change of the first message, the received first message sent by the network device after the change period T′, specifically, the period T′ may be 20ms, 50ms, 100ms, 500ms, etc.; the number of repetitions of sending the first message indicates the number of times the first message is repeatedly sent within one change period T', for example, specifically 2, 4, 6, 8, etc.;
  • the time offset is, for example, 0 ms, 1 ms, 2 ms, 3 ms, etc., when the time pattern of the first message does not include the time offset of the first message, the time offset of the first message is a fixed value, such as 0, 1, etc. . It is to be understood that the above-listed numerical values are merely exemplary,
  • the first message further includes at least one of the following information: a period of sending the first message, a change period of the first message, and each group of services corresponding to the at least one group service identifier. Time offset, logical channel number of each group of services, and second RNTI.
  • the period T of the first message sent by the network device indicates the frequency at which the first message is sent. Specifically, the period T may be 20 ms, 50 ms, 100 ms, 500 ms, etc.; the change period T' of the first message
  • the period T′ is used to instruct the terminal device to determine the changed first message sent by the network device after the modification period T′ after determining that the first message is sent.
  • the period T′ may be 20 ms, 50 ms, 100 ms. , 500ms, etc.; the logic of each group of services sent by the network device
  • the channel number is used to indicate the logical channel used by a certain group of services
  • the second RNTI is the RNTI used to schedule the group service sent by the network device. It should be understood that the second RNTI may refer to the same one used to schedule multiple groups of services.
  • the RNTI may also be a different RNTI for scheduling a plurality of group services, that is, each group of services must have an RNTI corresponding thereto, and each RNTI may correspond to one or more group services, and the present invention is not limited thereto. It is to be understood that the above-listed numerical values are merely exemplary, and other possible values of the period T or T' fall within the scope of the present invention, and the present invention is not limited thereto.
  • the S610 further includes: sending a paging message carrying the indication information to the terminal device; or sending the SIB1 message carrying the indication information to the terminal device; or sending the second information carrying the indication information to the terminal device.
  • Downstream control information The information indicating that the first message change indication message or the first message change information carried in the second downlink control information in the SIB1 message may be a tag value, and the length may be 4 bits or 5 bits, etc., the downlink control The information may be in a format such as 1/1A/1C.
  • the terminal device changes according to the stored label value and the change indication message carrying the first message in the SIB1 message or the first message carried in the downlink control information of the first message.
  • the comparison of the tag values in the indication information, if the first message is changed if it is different it should be understood that the length values of the above-mentioned performance values are merely exemplary, and the present invention is not limited thereto.
  • the first message in order to improve the reliability of the first message received by the user equipment, when the network device sends the first message of the repetition coefficient in a change period, the first message may be different each time.
  • the redundancy version in this way, the terminal device can improve the reliability of the user receiving the first message by combining the plurality of first messages in order to correctly receive the first message.
  • the first message in order to improve the reliability of the first message received by the user equipment, is sent in consecutive N subframes, and each subframe is sent, starting at a subframe corresponding to each first message scheduling moment.
  • the first message may be the same, or different redundancy versions may be used.
  • the terminal device may improve the reliability of receiving the first message by combining the multiple first messages to correctly receive the first message.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the receiving configuration of group services enables dynamic and efficient group service configuration and transmission.
  • FIG. 7 is a schematic flowchart of a method for group communication according to still another embodiment of the present invention. As shown in Figure 7, the method includes:
  • the network device sends a first message.
  • the terminal device receives the first message.
  • the network device sends group service data.
  • the terminal device receives group service data according to the first message.
  • the first message sent by the network device includes at least one group service identifier, and one group service identifier corresponds to one group service.
  • the network device sends the group service corresponding to the at least one group service identifier to the terminal device.
  • the terminal device receives the first group of services corresponding to the first group of service identifiers of the terminal device according to the first message.
  • the second receiving module of the terminal device is configured to receive the first message according to the first receiving module. Receive the first set of services.
  • the first message further includes at least one of the following information: a period in which the network device sends the first message, a change period of the first message, and a time of each group service corresponding to the at least one group service identifier. Offset, logical channel number of each group of services, and second RNTI.
  • the terminal device receives, according to the first message, the first group of services corresponding to the first group of service identifiers of the terminal device, including: when the second message includes the second RNTI, the terminal device according to the second The RNTI receives the second downlink control information. When the second RNTI is not included in the first message, the terminal device receives the second downlink control information according to the second default RNTI.
  • the terminal device receives, according to the first message, the first group of services corresponding to the first group of service identifiers of the terminal device, including: when the first message includes each group corresponding to the at least one group service identifier.
  • the terminal device receives the MAC PDU according to the second downlink control information.
  • the terminal device acquires the MAC SDU of the first group of services according to the logical channel number of the first group of services in the logical channel number of each group of services.
  • the MAC PDU carries a MAC CE, where the first group of services ends.
  • the terminal device determines, according to the change indication information, that the first message changes;
  • the change indication information includes: indication information of the first message change carried in the paging message; or indication information of the first message change carried in the SIB1; or when the terminal device receives the first downlink control information, the first downlink control The indication information of the first message change carried in the information.
  • the sending, by the network device, the indication information of the first message change to the terminal device includes: sending a paging message carrying the indication information to the terminal device; or sending the SIB1 message carrying the indication information to the terminal device; Or sending the first downlink control information carrying the indication information to the terminal device.
  • the receiving, by the terminal device, the first message sent by the network device if the terminal device does not store the first message, receiving the first message when the network device sends the multicast control information; If the terminal device has stored the multicast control information and determines that the first message changes, receiving the changed first message at the time when the network device sends the changed first message, so as to receive the change according to the changed first message. After the first group of businesses.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 8 is a schematic flowchart of a method for group communication according to still another embodiment of the present invention. As shown in Figure 7, the method includes:
  • the network device sends configuration information of the first message.
  • the terminal device receives configuration information of the first message.
  • the network device sends a first message.
  • the terminal device receives the first message according to the configuration information of the first message.
  • the network device sends group service data.
  • the terminal device receives group service data according to the first message.
  • the network device sends configuration information of the first message, to instruct the terminal device to receive the first message according to the configuration information of the first message, where the configuration information of the first message includes at least one of the following information: the network device sends The time pattern of the first message, the modulation and coding mode of the first message, and the first RNTI.
  • the time pattern of the first message sent by the network device includes at least one of the following: a change period of the first message, a repetition coefficient of sending the first message, and a time offset of the first message.
  • the first message sent by the network device further includes at least one of the following information: a period of sending the first message, a change period of the first message, and a group service corresponding to the at least one group service identifier. Time offset, logical channel number of each group of services, and second RNTI.
  • the receiving, by the terminal device, the configuration information of the first message, to receive the first message according to the configuration information of the first message includes: when the first RNTI is included in the configuration information, the terminal device receives the first RNTI according to the first RNTI. And a downlink control information. When the first RNTI is not included in the configuration information, the terminal device receives the first downlink control information according to the first default RNTI.
  • the network device sends the group service corresponding to the at least one group service identifier to the terminal device.
  • the second receiving module of the terminal device is configured to receive the first message according to the first receiving module. Receive the first set of services.
  • the first message sent by the network device further includes at least one of the following information: a period in which the network device sends the first message, a change period of the first message, and a time of each group service corresponding to the at least one group service identifier. Offset, logical channel number of each group of services, and second RNTI.
  • the terminal device receives, according to the first message, the first group of services corresponding to the first group of service identifiers of the terminal device, including: when the second message includes the second RNTI, the terminal device according to the second The RNTI receives the second downlink control information. When the second RNTI is not included in the first message, the terminal device receives the second downlink control information according to the second default RNTI.
  • the terminal device receives, according to the first message, the first group of services corresponding to the first group of service identifiers of the terminal device, where: the first message includes each group corresponding to the at least one group service identifier.
  • the terminal device receives the MAC PDU according to the second downlink control information.
  • the terminal device acquires the MAC SDU of the first group of services according to the logical channel number of the first group of services in the logical channel number of each group of services.
  • the MAC PDU carries a MAC CE, and is used to indicate that the first group of services ends.
  • the terminal device determines, according to the change indication information, that the first message is changed, where the change indication information includes: indication information of the first message change carried in the paging message; or SIB1 The indication information of the first message change carried in the first downlink control information or the indication information of the first message change carried in the first downlink control information when the terminal device receives the first downlink control information.
  • the sending, by the network device, the indication information of the first message change to the terminal device includes: sending a paging message carrying the indication information to the terminal device; or sending the SIB1 message carrying the indication information to the terminal device; Or sending the first downlink control information carrying the indication information to the terminal device.
  • the receiving, by the terminal device, the first message sent by the network device if the terminal device does not store the first message, receiving, at a time when the network device sends the multicast control information a first message; if the terminal device has stored the multicast control information, and determines that the first message changes, receiving the changed first message at the time when the network device sends the changed first message, so as to be A message receives the first set of services after the change.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 9 is a schematic block diagram of a terminal device according to another embodiment of the present invention.
  • the apparatus 900 includes a processor 910, a memory 920, a bus system 930, and a receiver 940.
  • the processor 910, the memory 920 and the receiver 940 are connected by a bus 930 for storing instructions, and the processor 910 is configured to execute the instructions stored by the memory 920 and control the receiver 840 to receive information.
  • the receiver 940 may be configured to receive a first message sent by the network device, where the first message includes at least one group service identifier, and one group service identifier corresponds to one group service; the receiver 940 is further configured to use the first message according to the first message. Receiving a first group of services corresponding to the first group of service identifiers of the terminal device.
  • the receiver 940 is further configured to receive configuration information of the first message, to receive the first message according to the configuration information of the first message, where the configuration information of the first message includes the following information. At least one of: a time pattern in which the network device sends the first message, a modulation and coding manner of the first message, and a first RNTI.
  • the first message sent by the receiver 940 is sent.
  • the time pattern includes at least one of the following: a change period of the first message, a repetition factor of the first message, and a time offset of the first message.
  • the receiver 940 is further configured to: when the configuration information includes the first RNTI, receive the first downlink control information according to the first RNTI; when the first RNTI is not included in the configuration information. And receiving the first downlink control information according to the first default RNTI.
  • the terminal device when the receiver 940 is further configured to use the first group of service identifiers of the terminal device in the at least one group service identifier, the terminal device receives the first group of services according to the first message.
  • the first message received by the receiver 940 further includes at least one of the following information: a period in which the network device sends the first message, a change period of the first message, and at least one group service identifier.
  • the receiver 940 is further configured to: when the first message includes the second RNTI, the terminal device receives the second downlink control information according to the second RNTI; when the first message does not include the first In the case of the second RNTI, the terminal device receives downlink control information of each group of services according to the second default RNTI.
  • the receiver 940 is further configured to: when the first message includes the second RNTI, receive the second downlink control information according to the second RNTI, and receive the second downlink control information according to the second downlink control information.
  • a set of services when the second message does not include the second RNTI, the terminal device receives the second downlink control information according to the second default RNTI, and is configured to receive the first group of services according to the second downlink control information.
  • the receiver 940 is further configured to receive a MAC PDU according to the second downlink control information; when the first message includes a logical channel number of each group of services, the terminal device according to each The logical channel number of the first group of services in the logical channel number of the group service receives the MAC SDU of the first group of services; when the first message does not include the logical channel number of each group service, the terminal device according to the first group of services Identifies the MAC SDU of the first group of services.
  • the processor 910 is configured to determine, according to the change indication information, that the first message is changed, where the change indication information includes: an indication that the first message is changed in the paging message. And the indication information of the first message change carried in the SIB1 message; or the indication information of the first message change carried in the first downlink control information when the terminal device receives the first downlink control information.
  • the receiver 940 is further configured to: if the terminal device does not store the first message, receive the first message at a time when the network device sends the multicast control information; And storing the multicast control information, and determining that the first message changes, receiving the changed first message at a time when the network device sends the changed first message, so as to receive the changed first according to the changed first message. Group business.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • FIG. 10 is a schematic block diagram of a network device according to another embodiment of the present invention.
  • the apparatus 1000 includes a processor 1100, a memory 1200, a bus system 1300, and a transmitter 1400.
  • the processor 1100, the memory 1200, and the transmitter 1400 are connected by a bus 1300 for storing instructions for executing instructions stored in the memory 1200 and controlling the transmitter 1400 to receive information.
  • the transmitter 1400 may be configured to receive a first message sent by the network device, where the first message includes at least one group service identifier, and one group service identifier corresponds to one group service; the transmitter 1400 is further configured to use the terminal device. Sending the group service corresponding to the at least one group service identifier.
  • the transmitter 1400 is configured to send configuration information of the first message, so that the terminal device receives the first message according to the configuration information of the first message, where the configuration information of the first message includes At least one of the following information: a time pattern in which the first message is transmitted, a first RNTI mode, and a modulation and coding mode of the first message.
  • the time pattern used by the transmitter 1400 to send the first message includes at least one of the following information: a change period of the first message, and a repetition coefficient of the first message. Time offset from the first message.
  • the first message that is sent by the transmitter 1400 is further included at least one of the following: a period of sending the first message, a change period of the first message, and at least one group service
  • a period of sending the first message a change period of the first message
  • at least one group service The time offset of the corresponding group service, the second RNTI, and the logical channel number of each group of services are identified.
  • the sending, by the transmitter 1400, the indication information of the first message change to the terminal device includes: sending a paging message carrying the indication information to the terminal device; or sending the carrying indication to the terminal device.
  • the SIB1 message of the information; or the first downlink control information carrying the indication information is sent to the terminal device.
  • the terminal device receives the group service identifier of each group service that is sent by the network device, and the terminal device can receive the group service sent by the network device according to the received first message. Therefore, the implementation of the present invention provides a method, a terminal device, and a network device capable of implementing group communication, which can implement not only single-cell point-to-multipoint group communication, but also can realize that one group of services occupies only one resource and is sent to all receiving.
  • the terminal equipment of the group service reduces the waste of wireless resources.
  • the configuration configuration of each group of services can be modified through a unified configuration message to implement dynamic and flexible group service configuration and transmission.
  • the processing module in all the foregoing embodiments of the present invention may be implemented by at least one processor, where the processor may be a central processing unit (CPU), or other general-purpose processor, digital signal. Processor (DSP), application specific integrated circuit (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the sending module can be implemented by a transmitter or a transceiver.
  • the network device and the user equipment in the above embodiments of the present invention may further include components such as a receiver and a memory, where the memory may include a read only memory and a random access memory, and provide instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor calls the instruction code of the memory to control the network device in the embodiment of the present invention and other modules in the user equipment to perform the foregoing operations.
  • system and “network” are used interchangeably herein. It should be understood that this The term “and/or” in the text is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, A and B exist simultaneously, and B exists separately. These three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like.
  • the medium of the program code includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like.

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Abstract

本发明实施例提供一种终端设备、网络设备和组通信的方法，该终端设备包括：第一接收模块，用于接收网络设备发送的第一消息，该第一消息包括至少一个组业务标识，一个该组业务标识对应一个组业务；第二接收模块，用于根据该第一接收模块接收的第一消息，接收与该终端设备的第一组业务标识对应的第一组业务。本发明实施例通过终端设备根据网络设备发送的第一消息接收该网络设备发送的组业务，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。

Description

终端设备、网络设备和组通信的方法 技术领域
本发明实施例涉及移动通信领域，并且更具体地，涉及一种终端设备、网络设备和组通信的方法。
背景技术
组通信是指一组UE之间相互通信的机制，在组通信中，一组UE里只有一个UE允许说话，其余UE通过下行接收该说话UE的语音内容。目前组通信一般通过组通信服务器完成，在一组UE中的每个UE都与组服务器建立信令连接和语音连接实现组通信，组通讯服务器将通过信令授权某个UE可以说话，并将该说话UE的下行语音传达给组内其它UE。当某个UE需要说话的时候通过会话初始协议(英文：Session Initiation Protocol，简写：SIP)信令向组通信服务器请求话权，组通信服务器授予该UE话权之后，说话UE才能开始向组内其它UE发送语音，同样组通信服务器通过SIP信令通知组内其它UE开始收听通话。
在目前的组通信实现方式中，最简单的实现方式是组通信采用与正常语音通信相同的处理方式，即每个UE在接入网侧都需要单独的下行语音通道传输语音消息，这样的处理方式需要对每个UE单独发送相同的语音消息，因而会造成无线资源的浪费。
发明内容
本发明实施例提供一种终端设备、网络设备和组通信的方法，能够实现组通信。
第一方面，提供了一种终端设备，包括：第一接收模块，所述第一接收模块用于接收网络设备发送的第一消息，所述第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务；第二接收模块，所述第二接收模块用于根据所述第一接收模块接收的所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务。
结合第一方面，第一方面的第一种可能的实现方式中，所述终端设备包括：第三接收模块，所述第三接收模块用于接收所述第一消息的配置信息， 所述终端设备的所述第一接收模块根据所述第一消息的配置消息接收所述第一消息；其中，所述第三接收模块接收的所述第一消息的配置信息包括以下信息中的至少一种：所述网络设备发送所述第一消息的时间样式、第一RNTI和所述第一消息的调制编码方式。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述第三接收模块接收的所述网络设备发送所述第一消息的时间样式包括以下信息中的至少一种：所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
结合第一方面的第一种或第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述第一接收模块包括第一接收单元：当所述第三接收模块接收的所述配置信息中包括所述第一RNTI时，所述第一接收单元用于根据所述第一RNTI接收所述第一下行控制信息，用于根据所述第一下行控制信息接收所述第一消息；当所述第三接收模块接收的所述配置信息中不包括所述第一RNTI时，所述第一接收单元用于根据所述第一默认RNTI接收所述第一下行控制信息，用于根据所述第一下行控制信息接收所述第一消息。
结合第一方面或第一方面的第一种至第三种可能的实现方式，在第一方面的第四种可能的实现方式中，当所述至少一个组业务标识中存在所述终端设备的第一组业务标识时，所述第二接收模块用于根据所述第一接收模块接收的所述第一消息接收所述第一组业务。
结合第一方面或第一方面的第一种至第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述第一接收模块接收的所述第一消息还包括以下信息中的至少一种：所述网络设备发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务标识对应的每个组业务的时间偏移、第二RNTI和所述每个组业务的逻辑信道号。
结合第一方面或第一方面的第一种至第五种可能的实现方式，在第一方面的第六种可能的实现方式中，所述第二接收模块包括第二接收单元：当所述第一消息中包括所述第二RNTI时，所述第二接收单元用于根据所述第二RNTI接收第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务；当所述第一消息中不包括所述第二RNTI时，所述第二接收单元用于根据第二默认RNTI接收所述第二下行控制信息，用于根据所述第二下 行控制信息接收所述第一组业务。
结合第一方面的第六种可能的实现方式，在第一方面的第七种可能的实现方式中，所述第二接收模块还包括第三接收单元，所述第三接收单元用于：根据所述第二接收单元接收的所述第二下行控制信息接收MAC PDU；当所述第一接收模块接收的所述第一消息中包括所述每个组业的逻辑信道号时，根据所述第一接收模块接收的所述第一组业务的逻辑信道号，接收所述第二接收模块接收的所述第一组业务的MAC SDU；当所述第一接收模块接收的所述第一消息中不包括所述每个组业务的逻辑信道号时，根据所述第一组业务标识接收所述第二接收模块接收的所述第一组业务的MAC SDU。
结合第一方面的第七种可能的实现方式，在第一方面的第八中可能的实现方式中，所述第二接收模块接收的所述MAC PDU中携带MAC CE，用于指示所述第一组业务结束。
结合第一方面或第三方面的第一至第七种可能的实现方式，在第一方面的第九种可能的实现方式中，所述终端设备还包括：确定模块，所述确定模块用于根据变更指示信息，确定所述第一接收模块接收的所述第一消息发生改变；其中，所述变更指示信息包括：寻呼消息中携带的所述第一消息改变的指示信息；或SIB1消息中携带的所述第一消息改变的指示信息；或当所述第二接收模块接收所述第一下行控制信息时，所述第一下行控制信息中携带的所述第一消息改变的指示信息
结合第一方面或第一方面的第一种至第九种可能的实现方式，在第一方面的第十种可能的实现方式中，所述第一接收模块还用于：若所述终端设备没有存储所述第一消息，则在所述网络设备发送所述组播控制信息的时刻接收所述第一消息；若所述终端设备已经存储所述组播控制信息，并且确定所述第一消息发生改变，则在所述网络设备发送变更后的第一消息的时刻接收所述变更后的第一消息，以便于根据所述变更后的第一消息接收变更后的第一组业务。
第二方面，提供一种网络设备，包括：第一发送模块，所述第一发送模块用于向终端设备发送第一消息，所述第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务；第二发送模块，所述第二发送模块用于向所述终端设备发送所述至少一个组业务标识对应的组业务。
结合第二方面，在第二方面的第一中可能的实现方式中，所述网络设备 还包括第三发送模块，所述第三发送模块用于：发送所述第一消息的配置信息，以便于所述终端设备根据所述第一消息的配置信息接收所述第一消息；其中，所述第一消息的配置信息包括以下信息中的至少一种：发送所述第一消息的时间样式、第一RNTI和所述第一消息的调制编码方式。
结合第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述第三发送模块发送的所述第一消息的时间样式包括以下信息中的至少一种：所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
结合第二方面或第二方面的第一种或第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述第一发送模块发送的所述第一消息还包括以下信息中的至少一种：发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务中每个组业务的时间偏移、第二RNTI和所述每个组业务的逻辑信道号。
结合第二方面或第二方面的第一种或第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述第一发送模块还用于：向所述终端设备发送所述第一消息变更的指示信息，包括：向所述终端设备发送携带所述指示信息的寻呼消息；或向所述终端设备发送携带所述指示信息的SIB1消息；或向所述终端设备发送携带所述指示信息的第一下行控制信息。
第三方面，提供了一种组通信的方法，包括：终端设备接收网络设备发送的第一消息，所述第一消息包括至少一个组业务的标识，一个所述组业务的标识对应一个组业务；所述终端设备根据所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务。
结合第三方面，在第三方面的第一种可能的实现方式中，所述方法包括：所述终端设备接收所述第一消息的配置信息，以根据所述第一消息的配置信息接收所述第一消息；其中，所述第一消息的配置信息包括以下信息中的至少一种：所述网络设备发送所述第一消息的时间样式、第一RNTI和所述第一消息的调制编码方式。
结合第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述网络设备发送的第一消息的时间样式包括以下信息中的至少一种：所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
结合第三方面的第一种或第二种可能的实现方式，在第三方面的第三种可能的实现方式中，所述终端设备接收所述第一消息的配置信息，以根据所述第一消息的配置信息接收所述第一消息包括：当所述配置信息中包括所述第一RNTI时，所述终端设备根据所述第一RNTI接收第一下行控制信息，用于根据所述第一下行控制信息接收第一消息；当所述配置信息中不包括所述第一RNTI时，所述终端设备根据第一默认RNTI接收所述第一下行控制信息，用于根据所述下行控制信息接收第一消息。
结合第三方面或第一方面的第一至第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述至少一个组业务标识中存在所述终端设备的第一组业务标识时，所述终端设备根据所述第一消息接收所述第一组业务。
结合第三方面或第三方面的第一至第四种可能的实现方式，在第三方面的第五种可能的实现方式中，所述第一消息还包括以下信息中的至少一种：所述网络设备发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务中每个组业务的时间偏移、第二RNTI和所述每个组业务的逻辑信道号。
结合第三方面或第三方面的第一种至第五种可能的实现方式，在第三方面的第六种可能的实现方式中，所述终端设备根据所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务，包括：当所述第一消息中包括所述第二RNTI时，所述终端设备根据所述第二RNTI接收第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务；当所述第一消息中不包括所述第二RNTI时，所述终端设备根据第二默认RNTI接收所述第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务。
结合第三方面的第六种可能的实现方式，在第三方面的第七种可能的实现方式中，所述终端设备根据所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务，包括：所述终端设备根据所述第二下行控制信息接收MAC PDU；当所述第一消息中包括所述每个组业务的逻辑信道号时，所述终端设备根据所述每个组业务的逻辑信道号中所述第一组业务的逻辑信道号，接收所述第一组业务的MAC SDU；当所述第一消息中不包括所述每个组业务的逻辑信道号时，所述终端设备根据所述第一组业务标识，接收 所述第一组业务的MAC SDU。
结合第三方面的第七种可能的实现方式，在第三方面的第八种可能的实现方式中，所述MAC PDU中携带MAC CE，用于指示所述第一组业务结束。
结合第三方面或第三方面的第一种至第八种可能的实现方式，在第三方面的第九种可能的实现方式中，所述方法还包括：所述终端设备根据变更指示信息，确定所述第一消息发生改变；其中，所述变更指示信息包括：寻呼消息中携带的所述第一消息改变的指示信息；或SIB1消息中携带的所述第一消息改变的指示信息；或当所述终端设备接收所述第一下行控制信息时，所述第一下行控制信息中携带的所述第一消息改变的指示信息。
结合第三方面或第三方面的第一种至第九种可能的实现方式，在第三方面的第十种可能的实现方式中，所述终端设备接收网络设备发送的第一消息包括：若所述终端设备没有存储所述第一消息，则在所述网络设备发送所述组播控制信息的时刻接收所述第一消息；若所述终端设备已经存储所述组播控制信息，并且确定所述第一消息发生改变，则在所述网络设备发送变更后的第一消息的时刻接收所述变更后的第一消息，以便于根据所述变更后的第一消息接收变更后的第一组业务。
第四方面，提供了一种组通信的方法，其特征在于，包括：向终端设备发送第一消息，所述第一消息包括至少一个组业务的标识，一个所述组业务的标识对应一个组业务；向所述终端设备发送所述至少一个组业务。
结合第四方面，在第四方面的第一种可能的实现方式中，所述方法还包括：发送所述第一消息的配置信息，以便于所述终端设备根据所述第一消息的配置信息接收所述第一消息；其中，所述第一消息的配置信息包括以下信息中的至少一种：发送所述第一消息的时间样式、第一RNTI和所述第一消息的调制编码方式。
结合第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述发送所述第一消息的时间样式包括以下信息中的至少一种：所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
结合第四方面或第四方面的第一种至第二种可能的实现方式，在第四方面的第三种可能的实现方式中，所述第一消息还包括以下信息中的至少一种：发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组 业务标识对应的每个组业务的时间偏移、第二RNTI和所述每个组业务的逻辑信道号。
结合第四方面或第四方面的第一种至第三种可能的实现方式，在第四方面的第四种可能的实现方式中，所述方法还包括：向所述终端设备发送所述第一消息变更的指示信息，包括：向所述终端设备发送携带所述指示信息的寻呼消息；或向所述终端设备发送携带所述指示信息的SIB1消息；或向所述终端设备发送携带所述指示信息的第一下行控制信息。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的终端设备的示意性框图；
图2是本发明另一实施例提供的终端设备的示意性框图；
图3是本发明实施例提供的网络设备的示意性框图；
图4是本发明另一实施例提供的网络设备的示意性框图；
图5是本发明实施例提供的组通信的方法的示意性流程图；
图6是本发明另一实施例提供的组通信的方法的示意性流程图；
图7是本发明再一实施例提供的组通信的方法的示意性流程图；
图8是本发明再一实施例提供的组通信的方法的示意性流程图；
图9是本发明另一实施例提供的终端设备的示意性框图；
图10是本发明另一实施例提供的网络设备的示意性框图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
应理解，在本发明实施例中，终端设备(英文：Terminal Equipment)可以为用户设备(英文：User Equipment，简称为UE)、用户驻地设备(英文：Customer Premise Equipment，简称为CPE)、移动台(英文：Mobile Station，简称为MS)、移动终端(英文：Mobile Terminal)等，该终端设备可以经无线接入网(英文：Radio Access Network，简称为RAN)与一个或多个核心网进行通信，例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据，本发明并不限定，但为描述方便，下述实施例将以UE为例进行说明。
在本发明实施例中，网络设备可以是基站、增强型基站、小区或中继等。其中，基站可以是LTE中的演进型基站(英文：Evolutional Node B，简称为eNB或e-NodeB)，本发明并不限定，但为描述方便，下述实施例将以eNB为例进行说明。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
图1是本发明实施例提供的终端设备100的示意性框图，如图1所示，该终端设备100包括第一接收模块110和第二接收模块120。
第一接收模块110，用于接收网络设备发送的第一消息，该第一消息包括至少一个组业务标识，一个组业务标识对应一个组业务。
第二接收模块120，用于根据第一接收模块110接收的第一消息，接收与该终端设备100的第一组业务标识对应的第一组业务。
具体而言，网络设备发送的第一消息中可以包括组业务标识列表，该组业务标识列表包括网络设备将要发送的组业务的组业务标识，该组业务标识 列表中可以包括一个或者多个组业务标识，一个组业务标识对应一个组业务。应理解，上述第一消息可以是独立的一条广播消息，也可以是以具体信息的形式携带在其它广播消息中，具体的，该第一消息可以是多播控制信道(英文：Multicast Control Channel，简称为MCCH)消息或组配置消息或组播控制消息或组播配置消息，本发明不限于此。具体地，上述组业务标识列表可以为临时移动组标识(英文：Temporary Mobile Group Identity，简称为TMGI)列表，包含至少一个组业务对应的TMGI，本发明不限于此。上述终端设备100的第一组业务标识是指上述终端设备100感兴趣的组业务标识或签约的组业务标识，具体地，上述终端设备100从获取的用户服务描述(英文：user service description，简称为USD)中获取感兴趣的组业务标识或签约的组业务标识。
在第二接收模块120中，终端设备通过第一消息中的组业务标识，区分识别需要接收的组业务，从而使得终端设备接收希望接收的组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
可选地，作为本发明一个实施例，图2是本发明实施例提供的终端设备200的示意性框图，如图2所示，该终端设备200包括第一接收模块210、第二接收模块220和第三接收模块230。
第一接收模块210，用于接收网络设备发送的第一消息，该第一消息包括至少一个组业务标识，一个组业务标识对应一个组业务。
第二接收模块220，用于根据第一接收模块210接收的第一消息，接收与该终端设备200的第一组业务标识对应的第一组业务。
第三接收模块230，用于接收第一消息的配置信息，终端设备的第一接收模块根据第一消息的配置消息接收第一消息，其中，第三接收模块接收的第一消息的配置信息包括以下信息中的至少一种：网络设备发送所述第一消 息的时间样式、第一消息的调制编码方式和第一RNTI。其中，对于第一消息的调制编码方式，具体地可以例如，第一消息的调制方式为正交相移键控(英文：Quadrature Phase Shift Keying，简写为QPSK)，编码方式为三分之一编码，或者第一消息的调制方式为QPSK，编码方式为二分之一编码等，应理解还有其它的编码或者调制方式，本发明不限于此；其中，第一RNTI是指网络设备用于调度发送第一消息的RNTI。
可选的，作为本发明一个实施例，第三接收模块接收的所述网络设备发送第一消息的时间样式包括以下信息中的至少一种：第一消息的更改周期、发送第一消息的重复系数和第一消息的时间偏移。其中，第一消息的更改周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；发送第一消息的重复次数表示在一个更改周期T’内重复发送第一消息的次数，例如具体地可以是2、4、6、8等；第一消息的时间偏移，例如为0ms、1ms、2ms、3ms等，当第一消息的时间样式不包含第一消息的时间偏移时，则第一消息的时间偏移为固定值，例如0、1等。还应理解，上述列出的数值只是示例性的，更改周期T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，第一接收模块还包括第一接收单元：
当第三接收模块接收的所述配置信息中包括第一RNTI时，第一接收单元用于根据第一RNTI接收第一下行控制信息；当第三接收模块接收的所述配置信息中不包括第一RNTI时，第一接收单元用于根据第一默认RNTI接收第一下行控制信息。具体的，如果所述配置信息中包括第一RNTI时，那么终端设备则根据第一RNTI中与第一组业务对应的RNTI解析第一下行控制信息，以便于根据该第一下行控制信息接收第一消息；如果第一消息中不包括第一RNTI时，则按照第一默认RNTI接收第一下行控制信息，其中，第一下行控制信息是指用于调度第一消息的下行控制信息，第一默认RNTI是网络设备用于调度发送第一消息的默认RNTI，例如该第一默认RNTI可以为FFF4或FFFC等，本发明不限于此。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现 组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
可选地，作为本发明一个实施例，当网络设备发送的至少一个组业务标识中存在该终端设备的第一组业务标识时，终端设备的第二接收模块用于根据第一接收模块接收的第一消息接收第一组业务。
应理解，当网络设备发送的组业务标识列表中不存在终端设备的组业务标识时，该终端设备将不会接收网络设备发送的组业务数据，只有当网络设备发送的组业务标识列表中存在终端设备的组业务标识时，终端设备才会接收网络设备发送的与自己的组业务标识相对应的组业务数据。例如，当网络设备将要发送的组业务为A组业务、B组业务和C组业务，组业务标识列表中将会有A、B、C这样三个组业务标识，对于终端设备来说，可能被预先根据自己的需求标记为A、B、D这样三个组业务标识，那么该终端设备只会接收网络侧设备发送的A业务和B业务，而无法接收C业务。
可选地，作为本发明一个实施例，第一接收模块接收的第一消息还包括以下信息中的至少一种：网络设备发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二无线网络临时标识(英文：Radio Network Temporary Identifier，简写为RNTI)。其中，网络设备发送的第一消息的周期T表征了该第一消息以何种频率发送消息，具体的，该周期T可以为20ms，50ms，100ms，500ms等；第一消息的更改周期T’，该周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；网络设备发送的每个组业务的逻辑信道号用于表示每个组业务使用的逻辑信道，逻辑信道号可采用12个比特表示，如000000000001，或采用5比特表示，如00001，或采用6～13的任一比特数目来表示，采用的比特数目可以是网络预先设置的长度，或者通过第一消息指示的长度；第二RNTI是指用于调度网络设备发送的组业务的RNTI，应理解，第二RNTI可以是指用于调度多个组业务的同一个RNTI，也可以是指用于调度多个组业务的不同的RNTI，即每个组业务必定有与其对应的RNTI，而每个RNTI可能对应一个或者多个组业务， 本发明不限于此。还应理解，上述列出的数值只是示例性的，周期T或T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，终端设备的第二接收模块包括第二接收单元：当网络设备发送的第一消息中包括第二RNTI时，第二接收单元用于根据第二RNTI接收第二下行控制信息(英文：Downlink Control Information，简写为DCI)；当第一消息中不包括第二RNTI时，第二接收单元用于根据第二默认RNTI接收第二下行控制信息。具体的，如果第一消息中包括第二RNTI时，终端设备需要接收第一组业务标识对应的第一组业务，那么则根据第二RNTI中与第一组业务对应的RNTI解析第二下行控制信息，以便于根据该第二下行控制信息接收第一组业务；如果第一消息中不包括第二RNTI时，则按照第二默认RNTI接收第二下行控制信息。其中，第二下行控制信息是用于调度网络设备发送的组业务数据的下行控制信息第二默认RNTI是用于调度网络设备发送的组业务的默认RNTI，例如该第二默认RNTI可以为FFF4或FFFC等，本发明不限于此。
具体地，根据第二RNTI或第二默认RNTI接收第二下行控制信息为：在该第一组业务对应的调度时间上解析该第一组业务的RNTI加扰的第二下行控制信息，其中第一组业务的调度时间为系统帧号*10与第一组业务子帧号之和对周期T取模之后与该第一组业务对应的时间偏移相等的时刻。
可选地，作为本发明一个实施例，第二接收模块还包括第三接收单元，所述第三接收单元用于：根据第二接收单元接收的第二下行控制信息接收第二接收模块接收的媒体接入控制协议数据单元(英文：Media Access Control Packet Data Unit，简称为MAC PDU)；第一接收模块接收的第一消息中包括至少一个组业务中每个组业务的逻辑信道号时，根据第二接收单元接收至少一个组业务中第一组业务的逻辑信道号，获取第二接收模块接收的的媒体接入控制业务数据单元(英文：Media Access Control Service Data Unit，简称为：MAC SDU)；当第一接收模块接收的第一消息中不包括至少一个组业务中每个组业务的逻辑信道号时，根据第一组业务标识获取第二接收模块接收的第一组业务的MAC SDU。应理解，上述MAC PDU是指包含至少一个组业务的MAC SDU的分组数据单元，本发明不限于此。
具体地，例如，当终端设备接收的第一消息中包括网络设备发送的A组业务、B组业务和C组业务的逻辑信道号A、B和C时，那么就可以利用A 组业务对应的信道号A去寻找对应的A信道，B组业务对应的信道号B和C组业务对应的信道C，获取第二接收模块接收的MAC SDU；那么如果第一消息中不包括上述逻辑信道号时，那么A、B、C组业务则都会根据各自组业务标识并利用给整个组业务分配的信道获取第二接收模块接收各自组业务对应的MAC SDU。
作为本发明一个实施例，可选地，第二接收模块接收的MAC PDU中携带媒体接入控制控制单元(英文：Media Access Control Control Element，简写为MAC CE)，用于指示第一组业务结束。包含指示业务结束的MAC CE的MAC PDU可以发送一次，或者重复多次发送，例如发送3次或5次，以提高终端设备接收的可靠性。具体实现方式可以为MAC CE中包括终端设备发送的组业务的组业务标识或者逻辑信道号，当终端设备接收到包括某个组业务标识或者逻辑信道号的MAC CE时，则认为该业务结束，具体实现方式还可以是当MAC CE中不包括终端设备发送的组业务对应的组业务标识或者逻辑信道号时，则认为包含指示业务结束的MAC CE的MAC PDU中包含的所有组业务结束。应理解，本发明实施例中提到的数字只是示例性的，还应理解，上述MAC CE是指指示至少一个组业务结束的MAC控制单元，本发明不限于此。
作为本发明一个实施例，可选地，终端设备还包括：确定模块，确定模块用于根据变更指示消息，确定第一接收模块接收的第一消息发生改变；其中，变更指示信息包括：寻呼消息中携带的第一消息改变的指示信息；或系统信息块1(英文：System Information Block 1，简称为SIB1)中携带的第一消息改变的指示信息；或当第二接收模块接收第一下行控制信息时，第一下行控制信息中携带的第一消息改变的指示信息。其中，在SIB1消息中携带第一消息的变更指示消息或在第一消息的下行控制信息中携带的第一消息改变的指示信息具体的可以为一个标签值，其长度可以为4bit或5bit等，该下行控制信息可以采用1/1A/1C等格式，进一步的，终端设备根据存储的标签值与在SIB1消息中携带第一消息的变更指示消息或在第一消息的下行控制信息中携带的第一消息改变的指示信息中的标签值对比，如果不同则认为第一消息发生改变，应理解，上述表现值的长度数值仅仅是实例性的，本发明不限于此。
作为本发明一个实施例，可选地，第一接收模块还用于：若终端设备没 有存储第一消息，则在网络设备发送组播控制信息的时刻接收第一消息；若终端设备已经存储组播控制信息，并且确定第一消息发生改变，则在网络设备发送变更后的第一消息的时刻接收变更后的第一消息，以便于根据变更后的第一消息接收变更后的第一组业务。其中，若终端设备没有存储第一消息，则需要在每次第一消息发送的时刻去尝试接收该第一消息，直到正确接收一个第一消息，终端设备可以通过SIB1消息获取该第一消息的发送时刻，或者在下行控制信息调度的第一消息的配置信息中获取该第一消息的发送时刻，以在该第一消息发送的时刻尝试接收；若终端设备已经存储了第一消息，那么则需要在确定第一消息发送改变的时候，经过更改周期T’，开始接收变更后的第一消息，以根据变更后的第一消息接收第一组业务。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，网络设备在一个更改周期内T’发送重复系数次第一消息时，每次的第一消息可以使用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，在每个第一消息调度时刻对应的子帧开始，连续N个子帧发送第一消息，每个子帧发送的第一消息可以相同，也可以采用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
上文结合图1和图2详细描述了本发明实施例描述的终端设备，下面将结合图3和图4详细描述本发明实施例的网络设备。
图3是本发明实施例提供的网络设备的示意性框图。如图3所示，该网络设备包括：第一发送模块310和第二发送模块320。
第一发送模块310，用于向终端设备发送第一消息，该第一消息包括至 少一个组业务标识，一个组业务标识对应一个组业务。
第二发送模块320，第二发送模块用于向终端设备发送上述至少一个组业务标识对应的组业务。
具体而言，网络设备的第一发送模块310发送的第一消息中可以包括组业务标识列表，该组业务标识列表包括网络设备将要发送的组业务的组业务标识，该组业务标识列表中可以包括一个或者多个组业务标识，一个组业务标识对应一个组业务。应理解，上述第一消息可以是独立的一条广播消息，也可以是以具体信息的形式携带在其它广播消息中，具体的，该第一消息可以是MCCH消息或组配置消息，本发明不限于此。具体地，上述组业务标识列表可以为TMGI列表，包含至少一个组业务对应的TMGI，本发明不限于此。网络设备的第二发送模块320发送的组业务是组业务标识列表中包括的一个或多个组业务标识对应的组业务，其中一个组业务标识对应一个组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
可选地，作为本发明一个实施例，图4是本发明另一实施例提高的网络设备的示意性框图。该网络设备包括第一发送模块410、第二发送模块420和第三发送模块430。
第一发送模块410，用于向终端设备发送第一消息，该第一消息包括至少一个组业务标识，一个组业务标识对应一个组业务。
第二发送模块420，第二发送模块用于向终端设备发送上述至少一个组业务标识对应的组业务。
第三发送模块430，用于发送第一消息的配置信息，以便于终端设备根据第一消息的配置信息接收第一消息；其中，第一消息的配置信息包括以下信息中的至少一种：发送第一消息的时间样式、第一消息的调制编码方式和第一RNTI。其中，对于第一消息的调制编码方式，具体地可以例如，第一 消息的调制方式为正交相移键控(英文：Quadrature Phase Shift Keying，简写为QPSK)，编码方式为三分之一编码，或者第一消息的调制方式为QPSK，编码方式为二分之一编码等，应理解还有其它的编码或者调制方式，本发明不限于此；其中，第一RNTI是指网络设备用于调度发送第一消息的RNTI。
可选地，作为本发明一个实施例，第三发送模块发送的第一消息的时间样式包括以下信息中的至少一种：第一消息的更改周期、发送第一消息的重复系数和第一消息的时间偏移。其中，第一消息的更改周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；发送第一消息的重复次数表示在一个更改周期T’内重复发送第一消息的次数，例如具体地可以是2、4、6、8等；第一消息的时间偏移，例如为0ms、1ms、2ms、3ms等，当第一消息的时间样式不包含第一消息的时间偏移时，则第一消息的时间偏移为固定值，例如0、1等。还应理解，上述列出的数值只是示例性的，更改周期T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，第一发送模块发送的第一消息还包括以下信息中的至少一种：发送第一消息的周期、第一消息的更改周期、至少一个组业务中每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。其中，网络设备发送的第一消息的周期T表征了该第一消息以何种频率发送消息，具体的，该周期T可以为20ms，50ms，100ms，500ms等；第一消息的更改周期T’，该周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；网络设备发送的每个组业务的逻辑信道号用于表示某一组业务使用的逻辑信道；第二RNTI是指用于调度网络设备发送的组业务的RNTI，应理解，第二RNTI可以是指用于调度多个组业务的同一个RNTI，也可以是指用于调度多个组业务的不同的RNTI，即每个组业务必定有与其对应的RNTI，而每个RNTI可能对应一个或者多个组业务，本发明不限于此。还应理解，上述列出的数值只是示例性的，周期T或T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，第一发送模块还用于：向终端设备发 送第一消息变更的指示信息，包括：向终端设备发送携带指示信息的寻呼消息；或向终端设备发送携带指示信息的SIB1消息；或向终端设备发送携带指示信息的第一下行控制信息。其中，在SIB1消息中携带第一消息的变更指示消息或在第一下行控制信息中携带的第一消息改变的指示信息具体的可以为一个标签值，其长度可以为4bit或5bit等，该下行控制信息可以采用1/1A/1C等格式，进一步的，终端设备根据存储的标签值与在SIB1消息中携带第一消息的变更指示消息或在第一下行控制信息中携带的第一消息改变的指示信息中的标签值对比，如果不同则认为第一消息发生改变，应理解，上述表现值的长度数值仅仅是实例性的，本发明不限于此。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，网络设备在一个更改周期内T’发送重复系数次第一消息时，每次的第一消息可以使用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，在每个第一消息调度时刻对应的子帧开始，连续N个子帧发送第一消息，每个子帧发送的第一消息可以相同，也可以采用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
图1至图4详细描述了网络设备和终端设备，下面结合图5和图6描述本发明实施例的组通信的方法是示意性流程图。
图5是本发明实施例提供的组通信的方法的示意性流程图。该方法500中的各个流程可分别由根据本发明实施例的终端设备100或终端设备200中的相应部件执行和实现，为了简洁，在此不再赘述。如图5所示，该方法500包括：
S510，终端设备接收网络设备发送的第一消息，第一消息包括至少一个组业务标识，一个组业务标识对应一个组业务。
S520，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务。
具体而言，网络设备发送的第一消息中可以包括组业务标识列表，该组业务标识列表包括网络设备将要发送的组业务的组业务标识，该组业务标识列表中可以包括一个或者多个组业务标识，一个组业务标识对应一个组业务。应理解，上述第一消息可以是独立的一条广播消息，也可以是以具体信息的形式携带在其它广播消息中，具体的，该第一消息可以是多播控制信道(英文：Multicast Control Channel，简称为MCCH)消息或组配置消息，本发明不限于此。具体地，上述组业务标识列表可以为临时移动组标识(英文：Temporary Mobile Group Identity，简称为TMGI)列表，包含至少一个组业务对应的TMGI，本发明不限于此。上述终端设备100的第一组业务标识是指上述终端设备100感兴趣的组业务标识或签约的组业务标识，具体地，上述终端设备100从获取的用户服务描述(英文：user service description，简称为USD)中获取感兴趣的组业务标识或签约的组业务标识。
在S520中，终端设备通过第一消息中的组业务标识，区分识别需要接收的组业务，从而使得终端设备接收希望接收的组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
可选地，作为本发明一个实施例，在S510之前，终端设备接收第一消息的配置信息，以根据第一消息的配置信息接收第一消息；其中，第一消息的配置信息包括以下信息中的至少一种：网络设备发送第一消息的时间样式、第一消息的调制编码方式和第一RNTI。其中，对于第一消息的调制编码方式，具体地可以例如，第一消息的调制方式为正交相移键控(英文：Quadrature Phase Shift Keying，简写为QPSK)，编码方式为三分之一编码， 或者第一消息的调制方式为QPSK，编码方式为二分之一编码等，应理解还有其它的编码或者调制方式，本发明不限于此；其中，第一RNTI是指网络设备用于调度发送第一消息的RNTI。
可选地，作为本发明一个实施例，网络设备发送的第一消息的时间样式包括以下信息中的至少一种：第一消息的更改周期、发送第一消息的重复系数和第一消息的时间偏移。其中，第一消息的更改周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；发送第一消息的重复次数表示在一个更改周期T’内重复发送第一消息的次数，例如具体地可以是2、4、6、8等；第一消息的时间偏移，例如为0ms、1ms、2ms、3ms等，当第一消息的时间样式不包含第一消息的时间偏移时，则第一消息的时间偏移为固定值，例如0、1等。还应理解，上述列出的数值只是示例性的，更改周期T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，终端设备接收第一消息的配置信息，以根据第一消息的配置信息接收第一消息包括：当配置信息中包括第一RNTI时，终端设备根据第一RNTI接收第一下行控制信息；当配置信息中不包括第一RNTI时，终端设备根据第一默认RNTI接收第一下行控制信息。具体的，如果所述配置信息中包括第一RNTI时，那么终端设备则根据第一RNTI中与第一组业务对应的RNTI解析第一下行控制信息，以便于根据该第一下行控制信息接收第一消息；如果第一消息中不包括第一RNTI时，则按照第一默认RNTI接收第一下行控制信息，其中，第一默认RNTI是网络设备用于调度发送第一消息的默认RNTI，例如该第一默认RNTI可以为FFF4或FFFC等，本发明不限于此。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
可选地，作为本发明一个实施例，在S520中，当网络设备发送的至少一个组业务标识中存在该终端设备的第一组业务标识时，终端设备的第二接收模块用于根据第一接收模块接收的第一消息接收第一组业务。
应理解，当网络设备发送的组业务标识列表中不存在终端设备的组业务标识时，该终端设备将不会接收网络设备发送的组业务数据，只有当网络设备发送的组业务标识列表中存在终端设备的组业务标识时，终端设备才会接收网络设备发送的与自己的组业务标识相对应的组业务数据。例如，当网络设备将要发送的组业务为A组业务、B组业务和C组业务，组业务标识列表中将会有A、B、C这样三个组业务标识，对于终端设备来说，可能被预先根据自己的需求标记为A、B、D这样三个组业务标识，那么该终端设备只会接收网络侧设备发送的A业务和B业务，而无法接收C业务。
可选地，作为本发明一个实施例，第一消息还包括以下信息中的至少一种：网络设备发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。其中，网络设备发送的第一消息的周期T表征了该第一消息以何种频率发送消息，具体的，该周期T可以为20ms，50ms，100ms，500ms等；第一消息的更改周期T’，该周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；网络设备发送的每个组业务的逻辑信道号用于表示每个组业务使用的逻辑信道，逻辑信道号可采用12个比特表示，如000000000001，或采用5比特表示，如00001，或采用6～13的任一比特数目来表示，采用的比特数目可以是网络预先设置的长度，或者通过第一消息指示的长度；第二RNTI是指用于调度网络设备发送的组业务的RNTI，应理解，第二RNTI可以是指用于调度多个组业务的同一个RNTI，也可以是指用于调度多个组业务的不同的RNTI，即每个组业务必定有与其对应的RNTI，而每个RNTI可能对应一个或者多个组业务，本发明不限于此。还应理解，上述列出的数值只是示例性的，周期T或T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，在S520中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务，包括：当第一消息中包括第二RNTI时，终端设备根据第二RNTI接收第二下行控制信息；当第 一消息中不包括第二RNTI时，终端设备根据第二默认RNTI接收第二下行控制信息。具体的，如果第一消息中包括第二RNTI时，终端设备需要接收第一组业务标识对应的第一组业务，那么则根据第二RNTI中与第一组业务对应的RNTI解析第二下行控制信息，以便于根据该第二下行控制信息接收第一组业务；如果第一消息中不包括第二RNTI时，则按照第二默认RNTI接收第二下行控制信息，第二默认RNTI是用于调度网络设备发送的组业务的默认RNTI，例如该第二默认RNTI可以为FFF4或FFFC等，本发明不限于此。
具体地，根据第二RNTI或第二默认RNTI接收第二下行控制信息为在该第一组业务对应的调度时间上解析该第一组业务的RNTI加扰的第二下行控制信息，其中第一组业务的调度时间为系统帧号*10与第一组业务子帧号之和对周期T取模之后与该第一组业务对应的时间偏移相等的时间。
可选地，作为本发明一个实施例，在S520中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务，包括：终端设备根据第二下行控制信息接收MAC PDU；当第一消息中包括每个组业务的逻辑信道号时，终端设备根据每个组业务的逻辑信道号中第一组业务的逻辑信道号，接收网络设备发送的MAC SDU；当第一消息中不包括每个组业务的逻辑信道号时，终端设备根据第一组业务标识，接收第一组业务的MAC SDU。
具体地，例如，当终端设备接收的第一消息中包括网络设备发送的A组业务、B组业务和C组业务的逻辑信道号A、B和C时，那么就可以利用A组业务对应的信道号A去寻找对应的A信道，B组业务对应的信道号B和C组业务对应的信道C，获取第二接收模块接收的MAC SDU；那么如果第一消息中不包括逻辑信道号时，那么A、B、C组业务则都会根据各自组业务标识并利用给整个组业务分配的信道获取第二接收模块接收各自组业务对应的MAC SDU。
作为本发明一个实施例，可选地，在S520中，MAC PDU中携带MAC CE，用于指示第一组业务结束。包含指示业务结束的MAC CE的MAC PDU可以发送一次，或者重复多次发送，例如发送3次或5次，以提高终端设备接收的可靠性。具体实现方式可以为MAC CE中包括终端设备发送的组业务对应的组业务标识或者逻辑信道号，当终端设备接收到包括某个组业务标识或者逻辑信道号的MAC CE时，则认为该业务结束，具体实现方式还可 以是当MAC CE中不包括终端设备发送的组业务对应的组业务标识或者逻辑信道号时，则认为包含指示业务结束的MAC CE的MAC PDU中包含的所有组业务结束。应理解，本发明实施例中提到的数字只是示例性的，本发明不限于此。
可选地，作为本发明一个实施例，终端设备根据变更指示信息，确定第一消息发生改变；其中，变更指示信息包括：寻呼消息中携带的第一消息改变的指示信息；或SIB1中携带的第一消息改变的指示信息；或当终端设备接收第一下行控制信息时，第一下行控制信息中携带的第一消息改变的指示信息。其中，在SIB1消息中携带第一消息的变更指示消息或在第一下行控制信息中携带的第一消息改变的指示信息具体的可以为一个标签值，其长度可以为4bit或5bit等，该下行控制信息可以采用1/1A/1C等格式，进一步的，终端设备根据存储的标签值与在SIB1消息中携带第一消息的变更指示消息或在第一消息的下行控制信息中携带的第一消息改变的指示信息中的标签值对比，如果不同则认为第一消息发生改变，应理解，上述表现值的长度数值仅仅是实例性的，本发明不限于此。
可选地，作为本发明一个实施例，终端设备接收网络设备发送的第一消息包括：若终端设备没有存储所述第一消息，则在网络设备发送组播控制信息的时刻接收第一消息；若终端设备已经存储组播控制信息，并且确定第一消息发生改变，则在网络设备发送变更后的第一消息的时刻接收变更后的第一消息，以便于根据变更后的第一消息接收变更后的第一组业务。其中，若终端设备没有存储第一消息，则需要在每次第一消息发送的时刻去尝试接收该第一消息，直到正确接收一个第一消息，终端设备可以通过SIB1消息获取该第一消息的发送时刻，或者在下行控制信息调度的第一消息的配置信息中获取该第一消息的发送时刻，以在该第一消息发送的时刻尝试接收；若终端设备已经存储了第一消息，那么则需要在确定第一消息发送改变的时候，经过更改周期T’，开始接收变更后的第一消息，以根据变更后的第一消息接收第一组业务。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，网络设备在一个更改周期内T’发送重复系数次第一消息时，每次的第一消息可以使用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，在每个第一消息调度时刻对应的子帧开始，连续N个子帧发送第一消息，每个子帧发送的第一消息可以相同，也可以采用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
图6是本发明另一实施例提供的组通信的方法的示意性流程图。该方法600中的各个流程可分别由根据本发明实施例的终端设备300或终端设备400中的相应部件执行和实现，为了简洁，在此不再赘述。如图6所示，该方法600包括：
S610，向终端设备发送第一消息，第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务。
S620，向终端设备发送上述至少一个组业务标识对应的组业务。
具体而言，网络设备发送的第一消息中可以包括组业务标识列表，该组业务标识列表包括网络设备将要发送的组业务的组业务标识，该组业务标识列表中可以包括一个或者多个组业务标识，一个组业务标识对应一个组业务。应理解，上述第一消息可以是独立的一条广播消息，也可以是以具体信息的形式携带在其它广播消息中，具体的，该第一消息可以是MCCH消息或组配置消息，本发明不限于此。具体地，上述组业务标识列表可以为TMGI列表，包含至少一个组业务对应的TMGI，本发明不限于此。网络设备发送的组业务是组业务标识列表中包括的一个或多个组业务标识对应的组业务，其中一个组业务标识对应一个组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现 组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
可选地，作为本发明一个实施例，在S610之前，发送所述第一消息的配置信息，以便于所述终端设备根据所述第一消息的配置信息接收所述第一消息；其中，所述第一消息的配置信息包括以下信息中的至少一种：发送所述第一消息的时间样式、所述第一消息的调制编码方式和第一RNTI。其中，对于第一消息的调制编码方式，具体地可以例如，第一消息的调制方式为正交相移键控(英文：Quadrature Phase Shift Keying，简写为QPSK)，编码方式为三分之一编码，或者第一消息的调制方式为QPSK，编码方式为二分之一编码等，应理解还有其它的编码或者调制方式，本发明不限于此；其中，第一RNTI是指网络设备用于调度发送第一消息的RNTI。
可选地，作为本发明一个实施例，发送第一消息的时间样式包括以下信息中的至少一种：第一消息的更改周期、第一消息的重复系数和第一消息的时间偏移。其中，第一消息的更改周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；发送第一消息的重复次数表示在一个更改周期T’内重复发送第一消息的次数，例如具体地可以是2、4、6、8等；第一消息的时间偏移，例如为0ms、1ms、2ms、3ms等，当第一消息的时间样式不包含第一消息的时间偏移时，则第一消息的时间偏移为固定值，例如0、1等。还应理解，上述列出的数值只是示例性的，更改周期T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，第一消息还包括以下信息中的至少一种：发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。其中，网络设备发送的第一消息的周期T表征了该第一消息以何种频率发送消息，具体的，该周期T可以为20ms，50ms，100ms，500ms等；第一消息的更改周期T’，该周期T’用于指示终端设备确定第一消息发送改变后，经过更改周期T’后接收网络设备发送的改变后的第一消息，具体地，该周期T’可以为20ms，50ms，100ms，500ms等；网络设备发送的每个组业务的逻辑 信道号用于表示某一组业务使用的逻辑信道；第二RNTI是指用于调度网络设备发送的组业务的RNTI，应理解，第二RNTI可以是指用于调度多个组业务的同一个RNTI，也可以是指用于调度多个组业务的不同的RNTI，即每个组业务必定有与其对应的RNTI，而每个RNTI可能对应一个或者多个组业务，本发明不限于此。还应理解，上述列出的数值只是示例性的，周期T或T’可能的其它数值都落入本发明保护范围，本发明不限于此。
可选地，作为本发明一个实施例，S610还包括：向终端设备发送携带指示信息的寻呼消息；或向终端设备发送携带指示信息的SIB1消息；或向终端设备发送携带指示信息的第二下行控制信息。其中，在SIB1消息中携带第一消息的变更指示消息或第二下行控制信息中携带的第一消息改变的指示信息具体的可以为一个标签值，其长度可以为4bit或5bit等，该下行控制信息可以采用1/1A/1C等格式，进一步的，终端设备根据存储的标签值与在SIB1消息中携带第一消息的变更指示消息或在第一消息的下行控制信息中携带的第一消息改变的指示信息中的标签值对比，如果不同则认为第一消息发生改变，应理解，上述表现值的长度数值仅仅是实例性的，本发明不限于此。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，网络设备在一个更改周期内T’发送重复系数次第一消息时，每次的第一消息可以使用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
可选地，作为本发明一个实施例，为了提高用户设备接收第一消息的可靠性，在每个第一消息调度时刻对应的子帧开始，连续N个子帧发送第一消息，每个子帧发送的第一消息可以相同，也可以采用不同的冗余版本，这样，终端设备可以通过合并多个第一消息以便正确的接收第一消息，提高了用户接收第一消息的可靠性。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个 组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
图7是本发明再一实施例提供的组通信的方法的示意性流程图。如图7所示的方法，该方法包括：
S701，网络设备发送第一消息；
S702，终端设备接收第一消息；
S703，网络设备发送组业务数据；
S704，终端设备根据第一消息，接收组业务数据。
在S701中，网络设备发送的第一消息中包括至少一个组业务标识，一个组业务标识对应一个组业务。
在S703中，网络设备向终端设备发送上述至少一个组业务标识对应的组业务。
在S704中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务。
可选地，在S704中，当网络设备发送的至少一个组业务标识中存在该终端设备的第一组业务标识时，终端设备的第二接收模块用于根据第一接收模块接收的第一消息接收第一组业务。
可选地，在S701中，第一消息还包括以下信息中的至少一种：网络设备发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。
可选地，在S704中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务，包括：当第一消息中包括第二RNTI时，终端设备根据第二RNTI接收第二下行控制信息；当第一消息中不包括第二RNTI时，终端设备根据第二默认RNTI接收第二下行控制信息。
可选地，在S704中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务，包括：当第一消息中包括至少一个组业务标识对应的每个组业务的逻辑信道号时，终端设备根据第二下行控制信息接收MAC PDU；终端设备根据每个组业务的逻辑信道号中第一组业务的逻辑信道号，获取第一组业务的MAC SDU。
可选地，在S704中，MAC PDU中携带MAC CE，用于指示第一组业务结束。
可选地，终端设备根据变更指示信息，确定第一消息发生改变；其中， 变更指示信息包括：寻呼消息中携带的第一消息改变的指示信息；或SIB1中携带的第一消息改变的指示信息；或当终端设备接收第一下行控制信息时，第一下行控制信息中携带的第一消息改变的指示信息。
可选地，作为本发明一个实施例，网络设备向终端设备发送第一消息变更的指示信息包括：向终端设备发送携带指示信息的寻呼消息；或向终端设备发送携带指示信息的SIB1消息；或向终端设备发送携带指示信息的第一下行控制信息。
可选地，作为本发明一个实施例，终端设备接收网络设备发送的第一消息包括：若终端设备没有存储所述第一消息，则在网络设备发送组播控制信息的时刻接收第一消息；若终端设备已经存储组播控制信息，并且确定第一消息发生改变，则在网络设备发送变更后的第一消息的时刻接收变更后的第一消息，以便于根据变更后的第一消息接收变更后的第一组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
图8是本发明再一实施例提供的组通信的方法的示意性流程图。如图7所示的方法，该方法包括：
S801，网络设备发送第一消息的配置信息；
S802，终端设备接收第一消息的配置信息；
S803，网络设备发送第一消息；
S804，终端设备根据第一消息的配置信息，接收第一消息；
S805，网络设备发送组业务数据；
S806，终端设备根据第一消息，接收组业务数据。
在S801中，网络设备发送第一消息的配置信息，以指示终端设备根据第一消息的配置信息接收第一消息；其中，第一消息的配置信息包括以下信息中的至少一种：网络设备发送第一消息的时间样式、第一消息的调制编码方式和第一RNTI。
可选地，在S801中，网络设备发送的第一消息的时间样式包括以下信息中的至少一种：第一消息的更改周期、发送第一消息的重复系数和第一消息的时间偏移。
可选地在S803中，网络设备发送的第一消息还包括以下信息中的至少一种：发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。
可选地，在S804中，终端设备接收第一消息的配置信息，以根据第一消息的配置信息接收第一消息包括：当配置信息中包括第一RNTI时，终端设备根据第一RNTI接收第一下行控制信息；当配置信息中不包括第一RNTI时，终端设备根据第一默认RNTI接收第一下行控制信息。
在S805中，网络设备向终端设备发送上述至少一个组业务标识对应的组业务。
可选地，在S806中，当网络设备发送的至少一个组业务标识中存在该终端设备的第一组业务标识时，终端设备的第二接收模块用于根据第一接收模块接收的第一消息接收第一组业务。
可选地，网络设备发送的第一消息还包括以下信息中的至少一种：网络设备发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。
可选地，在S806中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务，包括：当第一消息中包括第二RNTI时，终端设备根据第二RNTI接收第二下行控制信息；当第一消息中不包括第二RNTI时，终端设备根据第二默认RNTI接收第二下行控制信息。
可选地，在S806中，终端设备根据第一消息，接收与终端设备的第一组业务标识对应的第一组业务，包括：当第一消息中包括至少一个组业务标识对应的每个组业务的逻辑信道号时，终端设备根据第二下行控制信息接收MAC PDU；终端设备根据每个组业务的逻辑信道号中第一组业务的逻辑信道号，获取第一组业务的MAC SDU。
可选地，在S806中，MAC PDU中携带MAC CE，用于指示第一组业务结束。
可选地，终端设备根据变更指示信息，确定第一消息发生改变；其中，变更指示信息包括：寻呼消息中携带的第一消息改变的指示信息；或SIB1 中携带的第一消息改变的指示信息；或当终端设备接收第一下行控制信息时，第一下行控制信息中携带的第一消息改变的指示信息。
可选地，作为本发明一个实施例，网络设备向终端设备发送第一消息变更的指示信息包括：向终端设备发送携带指示信息的寻呼消息；或向终端设备发送携带指示信息的SIB1消息；或向终端设备发送携带指示信息的第一下行控制信息。
可选地，可选地，作为本发明一个实施例，终端设备接收网络设备发送的第一消息包括：若终端设备没有存储所述第一消息，则在网络设备发送组播控制信息的时刻接收第一消息；若终端设备已经存储组播控制信息，并且确定第一消息发生改变，则在网络设备发送变更后的第一消息的时刻接收变更后的第一消息，以便于根据变更后的第一消息接收变更后的第一组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
图9是本发明另一实施例提供的终端设备的示意性框图。如图900所示，该装置900包括处理器910、存储器920、总线系统930和接收器940。其中，处理器910、存储器920和接收器940通过总线930相连，该存储器用于存储指令，该处理器910用于执行该存储器920存储的指令，并控制该接收器840接收信息。其中，该接收器940可以用于接收网络设备发送的第一消息，该第一消息包括至少一个组业务标识，一个组业务标识对应一个组业务；该接收器940还用于根据该第一消息，接收与终端设备的第一组业务标识对应的第一组业务。
可选地，作为本发明一个实施例，该接收器940还用于接收第一消息的配置信息，以根据第一消息的配置信息接收第一消息；其中，第一消息的配置信息包括以下信息中的至少一种：网络设备发送第一消息的时间样式、第一消息的调制编码方式和第一RNTI。
可选地，作为本发明一个实施例，该接收器940接收的发送的第一消息 的时间样式包括以下信息中的至少一种：第一消息的更改周期、发送第一消息的重复系数和第一消息的时间偏移。
可选地，作为本发明一个实施例，该接收器940还用于当配置信息中包括第一RNTI时，根据第一RNTI接收第一下行控制信息；当配置信息中不包括第一RNTI时，根据第一默认RNTI接收第一下行控制信息。
可选地，作为本发明一个实施例，该接收器940还用于上述至少一个组业务标识中存在终端设备的第一组业务标识时，终端设备根据第一消息接收第一组业务。
可选地，作为本发明一个实施例，该接收器940接收的第一消息还包括以下信息中至少一种：网络设备发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、每个组业务的逻辑信道号和第二RNTI。
可选地，作为本发明一个实施例，该接收器940还用于当第一消息中包括第二RNTI时，终端设备根据第二RNTI接收第二下行控制信息；当第一消息中不包括第二RNTI时，终端设备根据第二默认RNTI接收每个组业务的下行控制信息。
可选地，作为本发明一个实施例，该接收器940还用于当第一消息中包括第二RNTI时，根据第二RNTI接收第二下行控制信息，用于根据第二下行控制信息接收第一组业务；当第一消息中不包括第二RNTI时，终端设备根据第二默认RNTI接收第二下行控制信息，用于根据第二下行控制信息接收第一组业务。
可选地，作为本发明一个实施例，该接收器940还用于根据所述第二下行控制信息接收MAC PDU；当第一消息中包括每个组业务的逻辑信道号时，终端设备根据每个组业务的逻辑信道号中第一组业务的逻辑信道号，接收第一组业务的MAC SDU；当第一消息中不包括每个组业务的逻辑信道号时，终端设备根据第一组业务标识，接收第一组业务的MAC SDU。
可选地，作为本发明一个实施例，该处理器910用于根据变更指示信息，确定第一消息发生改变；其中，变更指示信息包括：寻呼消息中携带的所述第一消息改变的指示信息；或SIB1消息中携带的所述第一消息改变的指示信息；或当终端设备接收第一下行控制信息时，第一下行控制信息中携带的第一消息改变的指示信息。
可选地，作为本发明一个实施例，该接收器940还用于：若终端设备没有存储所述第一消息，则在网络设备发送组播控制信息的时刻接收第一消息；若终端设备已经存储组播控制信息，并且确定第一消息发生改变，则在网络设备发送变更后的第一消息的时刻接收变更后的第一消息，以便于根据变更后的第一消息接收变更后的第一组业务。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
图10是本发明另一实施例提供的网络设备的示意性框图。如图1000所示，该装置1000包括处理器1100、存储器1200、总线系统1300和发送器1400。其中，处理器1100、存储器1200和发送器1400通过总线1300相连，该存储器用于存储指令，该处理器1100用于执行该存储器1200存储的指令，并控制该发送器1400接收信息。其中，该发送器1400可以用于接收网络设备发送的第一消息，该第一消息包括至少一个组业务标识，一个组业务标识对应一个组业务；该发送器1400还用于向所述终端设备发送该至少一个组业务标识对应的组业务。
可选地，作为本发明一个实施例，该发送器1400用于发送第一消息的配置信息，以便于终端设备根据第一消息的配置信息接收第一消息；其中，第一消息的配置信息包括以下信息中的至少一种：发送第一消息的时间样式、第一RNTI方式和第一消息的调制编码方式。
可选地，作为本发明一个实施例，该发送器1400用于发送所述第一消息的时间样式包括以下信息中的至少一种：第一消息的更改周期、所述第一消息的重复系数和第一消息的时间偏移。
可选地，作为本发明一个实施例，该发送器1400用于发送的第一消息还包括以下信息中的至少一种：发送第一消息的周期、第一消息的更改周期、至少一个组业务标识对应的每个组业务的时间偏移、第二RNTI和每个组业务的逻辑信道号。
可选地，作为本发明一个实施例，该发送器1400用于向终端设备发送第一消息变更的指示信息，包括：向终端设备发送携带指示信息的寻呼消息；或向终端设备发送携带指示信息的SIB1消息；或向终端设备发送携带指示信息的第一下行控制信息。
基于上述技术方案，终端设备接收网络设备发送的第一消息中包括网络设备发送的每个组业务的组业务标识；从而终端设备可以根据接收到的第一消息，接收网络设备发送的组业务。因此，本发明实施提出了一种能够实现组通信的方法、终端设备和网络设备，不仅能够实现单小区点到多点组通信，而且能够实现一个组业务仅占用一份资源发送给所有接收该组业务的终端设备，减少无线资源的浪费。此外，还能够通过统一的配置消息，修改各个组业务的接收配置，实现动态灵活又高效的组业务配置及传输。
需要说明的是，本发明上述所有实施例中的处理模块可以由至少一个处理器实现，这里处理器可以是一个中央处理器(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。发送模块可以由发送器实现，也可以是收发器实现。此外，本发明上述实施例中的网络设备和用户设备还可以包括接收器和存储器等部件，这里存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。处理器调用存储器的指令代码，控制本发明实施例中的网络设备和用户设备中的其他模块执行上述操作。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本发明的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。应理解，本 文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (32)

  1. 一种终端设备，其特征在于，包括：
    第一接收模块，所述第一接收模块用于接收网络设备发送的第一消息，所述第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务；
    第二接收模块，所述第二接收模块用于根据所述第一接收模块接收的所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务。
  2. 根据权利要求1所述的终端设备，其特征在于，所述终端设备包括：
    第三接收模块，所述第三接收模块用于接收所述第一消息的配置信息，用于指示所述第一接收模块根据所述第一消息的配置信息接收所述第一消息；
    其中，所述第三接收模块接收的所述第一消息的配置信息包括以下信息中的至少一种：所述网络设备发送所述第一消息的时间样式、第一无线网络临时标识RNTI和所述第一消息的调制编码方式。
  3. 根据权利要求2所述的终端设备，其特征在于，所述第三接收模块接收的所述网络设备发送所述第一消息的时间样式包括以下信息中的至少一种：
    所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
  4. 根据权利要求2或3所述的终端设备，其特征在于，所述第一接收模块还包括第一接收单元：
    当所述第三接收模块接收的所述配置信息中包括所述第一RNTI时，所述第一接收单元用于根据所述第一RNTI接收第一下行控制信息，以指示所述第一接收模块根据所述第一下行控制信息接收所述第一消息；
    当所述第三接收模块接收的所述配置信息中不包括所述第一RNTI时，所述第一接收单元用于根据所述第一默认RNTI接收所述第一下行控制信息，以指示所述第一模块根据所述第一下行控制信息接收所述第一消息。
  5. 根据权利要求1至4中任一项所述的终端设备，其特征在于，当所述至少一个组业务标识中包括所述终端设备的第一组业务标识时，所述第二接收模块用于根据所述第一接收模块接收的所述第一消息接收所述第一组业务。
  6. 根据权利要求1至5中任一项所述的终端设备，其特征在于，所述第一接收模块接收的所述第一消息还包括以下信息中的至少一种：
    所述网络设备发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务标识对应的每个组业务的时间偏移、第二无线网络临时标识RNTI和所述每个组业务的逻辑信道号。
  7. 根据权利要求1至6中任一项所述的终端设备，其特征在于，所述第二接收模块包括第二接收单元：
    当所述第一消息中包括所述第二RNTI时，所述第二接收单元用于根据所述第二RNTI接收第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务；
    当所述第一消息中不包括所述第二RNTI时，所述第二接收单元用于根据第二默认RNTI接收所述第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务。
  8. 根据权利要求7所述的终端设备，其特征在于，所述第二接收模块还包括第三接收单元，所述第三接收单元用于：
    根据所述第二接收单元接收的所述第二下行控制信息接收媒体接入控制控制单元MAC PDU；
    当所述第一接收模块接收的所述第一消息中包括所述每个组业务的逻辑信道号时，根据所述第一接收模块接收的所述第一组业务的逻辑信道号，接收所述第二接收模块接收的所述第一组业务的媒体接入控制业务数据单元MAC SDU；
    当所述第一接收模块接收的所述第一消息中不包括所述每个组业务的逻辑信道号时，根据所述第一组业务标识接收所述第二接收模块接收的所述第一组业务的MAC SDU。
  9. 根据权利要求8所述的终端设备，其特征在于，所述第二接收模块接收的所述MAC PDU中携带媒体接入控制控制单元MAC CE，用于指示所述第一组业务结束。
  10. 根据权利要求1至8中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    确定模块，所述确定模块用于根据变更指示信息，确定所述第一接收模块接收的所述第一消息发生改变；其中，所述变更指示信息包括：
    寻呼消息中携带的所述第一消息改变的指示信息；或
    系统消息块SIB1消息中携带的所述第一消息改变的指示信息；或
    当所述第二接收模块接收所述第一下行控制信息时，所述第一下行控制信息中携带的所述第一消息改变的指示信息。
  11. 根据权利要求1至10中任一项所述的终端设备，其特征在于，所述第一接收模块还用于：
    若所述终端设备没有存储所述第一消息，则在所述网络设备发送所述组播控制信息的时刻接收所述第一消息；
    若所述终端设备已经存储所述组播控制信息，并且确定所述第一消息发生改变，则在所述网络设备发送变更后的第一消息的时刻接收所述变更后的第一消息，以便于根据所述变更后的第一消息接收变更后的第一组业务。
  12. 一种网络设备，其特征在于，包括：
    第一发送模块，所述第一发送模块用于向终端设备发送第一消息，所述第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务；
    第二发送模块，所述第二发送模块用于向所述终端设备发送所述至少一个组业务标识对应的组业务。
  13. 根据权利要求12所述的网络设备，其特征在于，所述网络设备还包括第三发送模块，所述第三发送模块用于：
    发送所述第一消息的配置信息，以便于所述终端设备根据所述第一消息的配置信息接收所述第一消息；
    其中，所述第一消息的配置信息包括以下信息中的至少一种：发送所述第一消息的时间样式、第一无线网络临时标识RNTI和所述第一消息的调制编码方式。
  14. 根据权利要求13所述的网络设备，其特征在于，所述第三发送模块发送的所述第一消息的时间样式包括以下信息中的至少一种：
    所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
  15. 根据权利要求12至14中任一项所述的网络设备，其特征在于，所述第一发送模块发送的所述第一消息还包括以下信息中的至少一种：
    发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务中每个组业务的时间偏移、第二无线网络临时标识RNTI和所述每个组 业务的逻辑信道号。
  16. 根据权利要求12至15中任一项所述的网络设备，其特征在于，所述第一发送模块还用于：
    向所述终端设备发送所述第一消息变更的指示信息，包括：
    向所述终端设备发送携带所述指示信息的寻呼消息；或
    向所述终端设备发送携带所述指示信息的系统消息块SIB1消息；或
    向所述终端设备发送携带所述指示信息的第一下行控制信息。
  17. 一种组通信的方法，其特征在于，包括：
    终端设备接收网络设备发送的第一消息，所述第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务；
    所述终端设备根据所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务。
  18. 根据权利要求17所述的方法，其特征在于，所述方法包括：
    所述终端设备接收所述第一消息的配置信息，以用于所述终端设备根据所述第一消息的配置信息接收所述第一消息；
    其中，所述第一消息的配置信息包括以下信息中的至少一种：所述网络设备发送所述第一消息的时间样式、第一无线网络临时标识RNTI和所述第一消息的调制编码方式。
  19. 根据权利要求18所述的方法，其特征在于，所述网络设备发送的第一消息的时间样式包括以下信息中的至少一种：
    所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
  20. 根据权利要求18或19所述的方法，其特征在于，所述终端设备接收所述第一消息的配置信息，以根据所述第一消息的配置信息接收所述第一消息包括：
    当所述配置信息中包括所述第一RNTI时，所述终端设备根据所述第一RNTI接收第一下行控制信息，用于根据所述第一下行控制信息接收所述第一消息；
    当所述配置信息中不包括所述第一RNTI时，所述终端设备根据第一默认RNTI接收所述第一下行控制信息，用于根据所述第一下行控制信息接收所述第一消息。
  21. 根据权利要求17至20中任一项所述的方法，其特征在于，所述至少一个组业务标识中包括所述终端设备的第一组业务标识时，所述终端设备根据所述第一消息接收所述第一组业务。
  22. 根据权利要求17至21中任一项所述的方法，其特征在于，所述第一消息还包括以下信息中的至少一种：
    所述网络设备发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务标识对应的每个组业务的时间偏移、第二无线网络临时标识RNTI和所述每个组业务的逻辑信道号。
  23. 根据权利要求17至22中任一项所述的方法，其特征在于，所述终端设备根据所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务，包括：
    当所述第一消息中包括所述第二RNTI时，所述终端设备根据所述第二RNTI接收第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务；
    当所述第一消息中不包括所述第二RNTI时，所述终端设备根据第二默认RNTI接收所述第二下行控制信息，用于根据所述第二下行控制信息接收所述第一组业务。
  24. 根据权利要求23所述的方法，其特征在于，所述终端设备根据所述第一消息，接收与所述终端设备的第一组业务标识对应的第一组业务，包括：
    所述终端设备根据所述第二下行控制信息接收媒体接入控制控制单元MAC PDU；
    当所述第一消息中包括所述每个组业务的逻辑信道号时，所述终端设备根据所述每个组业务的逻辑信道号中所述第一组业务的逻辑信道号，接收所述第一组业务的媒体接入控制业务数据单元MAC SDU；
    当所述第一消息中不包括所述每个组业务的逻辑信道号时，所述终端设备根据所述第一组业务标识，接收所述第一组业务的MAC SDU。
  25. 根据权利要求24所述的方法，其特征在于，所述MAC PDU中携带媒体接入控制控制单元MAC CE，用于指示所述第一组业务结束。
  26. 根据权利要求17至25中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据变更指示信息，确定所述第一消息发生改变；
    其中，所述变更指示信息包括：
    寻呼消息中携带的所述第一消息改变的指示信息；或
    系统消息块SIB1消息中携带的所述第一消息改变的指示信息；或
    当所述终端设备接收所述第一下行控制信息时，所述第一下行控制信息中携带的所述第一消息改变的指示信息。
  27. 根据权利要求17至26中任一项所述的方法，其特征在于，所述终端设备接收网络设备发送的第一消息包括：
    若所述终端设备没有存储所述第一消息，则在所述网络设备发送所述组播控制信息的时刻接收所述第一消息；
    若所述终端设备已经存储所述组播控制信息，并且确定所述第一消息发生改变，则在所述网络设备发送变更后的第一消息的时刻接收所述变更后的第一消息，以便于根据所述变更后的第一消息接收变更后的第一组业务。
  28. 一种组通信的方法，其特征在于，包括：
    向终端设备发送第一消息，所述第一消息包括至少一个组业务标识，一个所述组业务标识对应一个组业务；
    向所述终端设备发送所述至少一个组业务标识对应的组业务。
  29. 根据权利要求28所述的方法，其特征在于，所述方法还包括：
    发送所述第一消息的配置信息，以便于所述终端设备根据所述第一消息的配置信息接收所述第一消息；
    其中，所述第一消息的配置信息包括以下信息中的至少一种：发送所述第一消息的时间样式、第一无线网络临时标识RNTI方式和所述第一消息的调制编码方式。
  30. 根据权利要求29所述的方法，其特征在于，所述发送所述第一消息的时间样式包括以下信息中的至少一种：
    所述第一消息的更改周期、发送所述第一消息的重复系数和所述第一消息的时间偏移。
  31. 根据权利要求18至30中任一项所述的方法，其特征在于，所述第一消息还包括以下信息中的至少一种：
    发送所述第一消息的周期、所述第一消息的更改周期、所述至少一个组业务标识对应的每个组业务的时间偏移、第二无线网络临时标识RNTI和所 述每个组业务的逻辑信道号。
  32. 根据权利要求18至31中任一项所述的方法，其特征在于，所述方法还包括：
    向所述终端设备发送所述第一消息变更的指示信息，包括：
    向所述终端设备发送携带所述指示信息的寻呼消息；或
    向所述终端设备发送携带所述指示信息的系统消息块SIB1消息；或
    向所述终端设备发送携带所述指示信息的第一下行控制信息。
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EP3244643A1 (en) 2017-11-15
CN107005817B (zh) 2020-09-18
US10547985B2 (en) 2020-01-28
CN112203237A (zh) 2021-01-08
BR112017016002B1 (pt) 2023-11-21
EP3244643B1 (en) 2020-02-26
CN107005817A (zh) 2017-08-01
JP2018505610A (ja) 2018-02-22
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