WO2018137284A1 - Procédé et dispositif de transmission de message de radiomessagerie - Google Patents

Procédé et dispositif de transmission de message de radiomessagerie Download PDF

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Publication number
WO2018137284A1
WO2018137284A1 PCT/CN2017/078198 CN2017078198W WO2018137284A1 WO 2018137284 A1 WO2018137284 A1 WO 2018137284A1 CN 2017078198 W CN2017078198 W CN 2017078198W WO 2018137284 A1 WO2018137284 A1 WO 2018137284A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
message
paging
subframe
transmitting
Prior art date
Application number
PCT/CN2017/078198
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English (en)
Chinese (zh)
Inventor
徐海博
邝奕如
坦尼•纳坦•爱德华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 CN202210101410.XA priority Critical patent/CN114845391B/zh
Priority to CN201780069035.2A priority patent/CN109923912B/zh
Publication of WO2018137284A1 publication Critical patent/WO2018137284A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for transmitting a paging message.
  • the direct connection communication mode refers to that the UE directly connects to the base station and performs communication.
  • the non-direct connection communication mode is that the remote user equipment (Remote UE) is connected to the base station through a relay user equipment (Relay User Equipment, Relay UE), and the Relay UE can pass the Internet Protocol (IP) layer. (Layer 3) Implement data forwarding between the base station and the Remote UE.
  • IP Internet Protocol
  • the Packet Data Convergence Protocol (PDCP) layer of the Remote UE can solve the data of the Remote UE, so that the data of the Remote UE has security risks and the like.
  • the Relay UE can forward data by using a data relay method below the PDCP layer based on the Radio Link Control (RLC) layer.
  • the remote user equipment can be called an evolution.
  • Evolved Remote UE eRemote UE
  • the relay user equipment may be called an Evolved Relay UE (eRelay UE).
  • the eRemote UE may receive a control message such as a system message and a paging message sent by the base station by using a direct link with the base station, and perform a data plane with the base station by using a side link between the eRelay UE and the eRelay UE.
  • a control message such as a system message and a paging message sent by the base station by using a direct link with the base station
  • a data plane with the base station by using a side link between the eRelay UE and the eRelay UE.
  • the base station When the core network needs to send data to the eRemote UE in the RRC_IDLE state, the base station needs to send a paging message to the eRemote UE to trigger the eRemote UE to enter the RRC_CONNECTED state, and the eRemote UE only needs to wake up once in one paging cycle, and the base station will At the time point when the eRemote UE wakes up, a paging message is sent to the eRemote UE through a Physical Downlink Control Channel (PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the paging message sent by the base station through the PDCCH cannot be accepted, and the base station cannot establish a communication connection with the eRemote UE.
  • the embodiment of the present application provides a method and an apparatus for transmitting a paging message, which can solve the problem that the paging message sent by the base station cannot be received when the eRemote UE is outside the coverage of the base station.
  • an embodiment of the present application provides a method for transmitting a paging message, where the method includes:
  • the first user equipment receives the first message sent by the network device, where the first message is used to page the second user equipment, and the first message includes at least the paging information of the second user equipment.
  • the first user equipment then generates a second message according to the first message, where the second message is used to page the second user equipment, and the second message includes the paging information of the second user equipment.
  • the first user equipment determines that the second user equipment listens to the listening time of the second message and acquires a resource for sending the second message, so that the first user equipment can use the The resource that sends the second message sends the second message to the second user equipment.
  • the paging information of the second user equipment includes the second user equipment identifier and core network domain information.
  • the first user equipment may be an eRemote UE
  • the second user equipment may be an eRemote UE
  • the network equipment may be a base station
  • the second user equipment identifier may be an IMSI, an S-TMSI, an IMSI mod 1024 of the second user equipment, or other may An identifier that represents the identity of the second user device.
  • the base station may first send the first message to the first user equipment, and then the first user equipment determines that the second user equipment monitors the listening time of the second message, the first user equipment may be used to page the second user during the listening time.
  • the second message of the device is sent to the second user equipment. Since the first user equipment is generally within the coverage of the base station, even if the second user equipment is not within the coverage of the base station, the first user equipment can receive the Call the message.
  • the information for determining the listening time needs to be acquired first, and the method for obtaining the information for determining the monitoring time is:
  • the first user equipment receives the third message sent by the second user equipment, where the third message carries information for determining the listening time; or the first user equipment receives the fourth message sent by the network device, and the fourth message is carried in the fourth message. Information for determining the listening time.
  • the second user equipment or the network device sends information for determining the listening time to the first user equipment, and the first user equipment can determine the listening time of the second user equipment. So that the time for the first user equipment to send the second message is the same as the time for the second user equipment to listen to the second message, so that the paging message can be received even if the second user equipment is not within the coverage of the base station, and compared to The base station transmits a paging message to the second user equipment through the downlink, and the power consumed by the first user equipment to transmit the paging message to the second user equipment through the sidelink is lower.
  • the information sent by the second user equipment or the network device to the first user equipment for determining the listening time includes the second user equipment identifier, the specific paging period of the second user equipment, and the system default paging. At least one of the cycles.
  • the first user equipment before determining the listening time, the first user equipment needs to determine a first identity for determining the listening time, and also needs to determine a first paging cycle for determining the listening time.
  • the first identifier is the first user equipment identifier or the second user equipment identifier, and the first identifier that is used by the first user equipment and the second user equipment to determine the listening time is the same, that is, the first identifier used by the first user equipment. If the first user equipment is identified, the first identifier used by the second user equipment is also the first user equipment identifier; if the first identifier used by the first user equipment is the second user equipment identifier, the second user equipment The first identifier adopted is also the second user equipment identifier.
  • the first paging cycle is the particular paging cycle, or the smaller of the particular paging cycle and the system default paging cycle.
  • the specific paging cycle is a UE-specific Paging cycle of the second user equipment eRemote UE, and the system default paging cycle is a default Paging cycle broadcast by the base station.
  • the first user equipment and the second user equipment employ the same first paging cycle when determining the listening time.
  • the determining the listening time may be further completed according to the combining the first identifier and the first paging period.
  • the process further ensures that the first user equipment can send a second message to the second user equipment on the sidelink, and the second user equipment can receive the second message on the sidelink.
  • the first user equipment may further receive resource pool configuration information configured by the network device for transmitting the second message, where the resource pool configuration information includes At least one of the following information:
  • bitmap bitmap for indicating a subframe in which the second message is transmitted
  • a frequency domain resource location for transmitting the second message A frequency domain resource location for transmitting the second message.
  • the first user equipment determines the listening time of the second user equipment to listen to the second message, which may be implemented as follows:
  • the second message can be sent on the determined radio frame and the subframe, so that the second user equipment does not need to constantly monitor the sidelink, and only needs to Wake up when listening to the second message to receive the second message.
  • the first user equipment determines the location of the radio frame and the location of the subframe monitored by the second user equipment in the sidelink sidelink according to the first identifier, the first paging period, and the nB, which may be implemented as :
  • the first user equipment Determining, by the first user equipment, the location of the radio frame and the location of the subframe monitored by the second user equipment when listening to the downlink according to the first identifier, the first paging period, and the nB, and then the first user equipment monitors the downlink according to the second user equipment.
  • the location of the radio frame and the subframe monitored by the way to determine the second user equipment The location of the radio frame and the location of the subframe monitored on the sidelink sidelink.
  • the first user equipment may determine the location of the radio frame and the location of the subframe that the first user equipment listens to when listening to the downlink according to the following formula.
  • the SFN is the location of the subframe; T is the first paging cycle; N is min (T, nB), and is used to indicate the number of radio frames included in a first paging cycle; Ns:max(1, nB /T), used to indicate the number of subframes included in a radio frame; UE_ID is the first identifier.
  • the SFN obtained by Equation 1 can determine the location of the radio frame monitored by the second user equipment when listening to the downlink.
  • i_s can be obtained, and according to the value of i_s and the value of NS and the position of the subframe.
  • the relationship table can determine the location of the radio frame that the second user equipment listens to when listening to the downlink.
  • the value of the i_s corresponding to the FDD system and the TDD system is different from the correspondence between the value of the NS and the subframe position.
  • the second user equipment adds a first offset to the subframe position monitored by the second user equipment when the second user equipment listens to the downlink, where the first offset is greater than or a positive integer equal to 0; or, the location of the subframe monitored by the second user equipment in the sidelink is the first in the resource pool after adding the second offset to the location of the subframe monitored by the second user equipment when listening to the downlink A subframe that is operative to transmit the second message, the second offset being a positive integer greater than or equal to zero.
  • the location of the radio frame and the location of the subframe monitored by the second user equipment while listening to the downlink are the same as the radio frame position and the subframe position of the second user equipment in the sidelink listening;
  • the location of the radio frame that the second user equipment listens while listening to the downlink is the same as the location of the radio frame that the second user equipment listens on the sidelink.
  • the location of the subframe monitored by the second user equipment while listening to the downlink has a different correspondence relationship with the location of the subframe monitored by the second user equipment in the sidelink.
  • the second frame corresponding to the second terminal corresponding to the TDD configuration 0 to the TDD configuration 6 needs to be monitored in the sidelink: 3, 3, 2 3, 3, 2, 3;
  • the subframe numbers that need to be monitored in the sidelink from the TDD configuration 0 to the TDD configuration 6 are: 7. 7, 7, 2, 2, 7;
  • the subframe numbers corresponding to the second terminal corresponding to the TDD configuration 6 that need to be monitored in the sidelink are: 8, 8, 7, 3, 3, 2, and 8, respectively.
  • the first user equipment determines the listening time of the second user equipment to listen to the second message, and specifically includes:
  • the first user equipment determines that the second user equipment needs to monitor the resource pool period number of the second message in a first paging period, and the resource pool period number is the first number. Identifies mod N.
  • the first user equipment determines that the second user equipment needs to monitor the subframe number of the second message in a resource pool period, where the subframe number is floor (first identifier /N) mod M, and then the first user equipment can Determining, according to the resource pool period number and the subframe number, a subframe position that the second user equipment listens on the sidelink.
  • the first user equipment may trigger an RRC connection establishment procedure to switch to the RRC_CONNRECTED state.
  • the first user equipment and the base station can communicate by using a dedicated message, so that the first user equipment can request the base station to acquire the resource for sending the second message, or the base station actively passes.
  • the dedicated message sends a resource for transmitting the second message to the first user equipment, thereby enabling the first user equipment to use the resource provided by the base station to send the second message through the sidelink.
  • the network device when the network device needs to send the first message to the first user equipment, if the first user equipment is in the RRC_IDLE state, the network device triggers the RRC connection establishment process of the first user equipment, so that the first user The device transitions to the RRC_CONNRECTED state. After the first user equipment is switched to the RRC_CONNRECTED state, the first user equipment and the base station can communicate by using a dedicated message, so that the first user equipment can request the base station to acquire the resource for sending the second message, or the base station actively passes.
  • the dedicated message sends a resource for transmitting the second message to the first user equipment, thereby enabling the first user equipment to use the resource provided by the base station to send the second message through the sidelink.
  • the first user equipment acquires a resource for sending the second message
  • the first user equipment may send a fifth message to the network device, where the fifth message is used to request to acquire a resource for sending the second message;
  • the first user equipment receives the sixth message sent by the network device, where the sixth message includes resource information or resource pool information that the network device allocates for the first user equipment to send the second message.
  • the fifth message includes at least one of the following information:
  • the purpose of the request is to indicate that the purpose of the fifth message is to acquire a resource for sending the second message
  • the number of paging information included in the second message, and each second user equipment corresponds to one paging information
  • the number of bits contained in the second message is the number of bits contained in the second message.
  • Each group of paging information includes a second device identifier and a core domain information, and the core domain information is a CS domain or a PS domain.
  • the first user equipment acquires a resource for sending the second message, and may also be implemented as:
  • the first user equipment acquires a resource for sending the second message from the first message, where the first message includes resource information or resource pool information allocated by the network device for the first user equipment to send the second message.
  • the first user equipment may further receive the first message by using the RRC layer, and generate, by the RRC layer, the second message according to the first message.
  • the second message generated by the first user equipment by using the RRC layer may be applicable to any short-distance connection technology, not only limited to the sidelink connection, but also may be a WLAN connection, etc., and the paging message transmitted by the application is extended.
  • the scope of application of the method may be applicable to any short-distance connection technology, not only limited to the sidelink connection, but also may be a WLAN connection, etc., and the paging message transmitted by the application is extended. The scope of application of the method.
  • an embodiment of the present application provides a method for transmitting a paging message, where the method includes:
  • the second user equipment determines the listening time of the second message, the second message is used to page the second user equipment, the second message includes the paging information of the second user equipment, and then the second user equipment monitors the monitoring time.
  • the second message sent by the first user equipment receives the second message when the second message is monitored.
  • the paging information of the second user equipment includes the second user equipment identifier and core network domain information.
  • the first user equipment may be an eRemote UE
  • the second user equipment may be an eRemote UE
  • the network equipment may be a base station
  • the second user equipment identifier may be an IMSI, an S-TMSI, an IMSI mod 1024 of the second user equipment, or other may An identifier that represents the identity of the second user device.
  • the second user equipment can first determine the listening time of the second message, and can listen to the second message sent by the first user equipment during the listening time, which is equivalent to the first user equipment transmitting the paging message through the sidelink. Even if the second user equipment is not within the coverage of the base station The second message can be received through the sidelink. In addition, the process of transmitting the second message through the sidelink between the first user equipment and the second user equipment consumes more power than transmitting the second message through the downlink between the base station and the second user equipment. small.
  • the information for determining the listening time needs to be acquired first, and the method for obtaining the information for determining the monitoring time is:
  • the second user equipment further needs to send a third message to the first user equipment, where the third message carries a specific paging period of the second user equipment, and then the second user equipment receives the seventh message sent by the first user equipment, where the The seven messages carry information for determining the listening time.
  • the first user may receive the information sent by the second user equipment for determining the listening time, and the second user equipment may determine the listening time of the second user equipment, so that The time when the second user equipment sends the second message is the same as the time when the second user equipment listens to the second message, so that the paging message can be received even if the second user equipment is not within the coverage of the base station, and the downlink is compared to the base station.
  • the link transmits a paging message to the second user equipment, and the power consumed by the first user equipment to transmit the paging message to the second user equipment through the sidelink is lower.
  • the information for determining the listening time includes at least one of a first user equipment identifier, nB, and a system default paging cycle broadcast by the network device, and nB is the number of subframes included in one paging cycle. ;or,
  • the information used to determine the listening time is resource pool configuration information configured by the network device for transmitting the second message, and the resource pool configuration information includes at least one of the following information:
  • bitmap bitmap for indicating a subframe in which the second message is transmitted
  • a frequency domain resource location for transmitting the second message A frequency domain resource location for transmitting the second message.
  • the resource pool configuration information may be used to determine, by the resource pool configuration information, the listening time of the second user equipment to listen to the second message, and may further determine, for sending the second message.
  • the first user equipment can send the second message to the second user equipment by using the resource for sending the second message, and the first user equipment and the second user equipment can use the sidelink transmission. Paging message.
  • the second user equipment determines a first identity for determining the listening time and also determines a first paging cycle for determining the listening time.
  • the first identifier is the first user equipment identifier or the second user equipment identifier, and the first user equipment and the second user equipment are used to determine that the first identifier of the listening time is the same.
  • the first paging cycle is a specific paging cycle, or the smaller of the specific paging cycle and the system default paging cycle.
  • the specific paging cycle is a UE-specific Paging cycle of the second user equipment eRemote UE, and the default paging cycle of the system is the default broadcast by the base station. Paging cycle.
  • the first user equipment and the second user equipment employ the same first paging cycle when determining the listening time.
  • the determining the listening time may be further completed according to the combining the first identifier and the first paging period.
  • the process in turn, can monitor the sidelink at the listening time, thereby receiving the second message sent by the second user equipment through the sidelink at the listening time.
  • the second user equipment determines the listening time of the second message, which can be implemented as follows:
  • the second user equipment determines the location of the subframe monitored by the second user equipment on the sidelink sidelink according to the first identifier, the first paging cycle, and the nB.
  • the second user equipment determines the location of the subframe monitored by the second user equipment in the sidelink sidelink according to the first identifier, the first paging period, and the nB, which may be implemented as follows:
  • the second user equipment Determining, by the second user equipment, the location of the radio frame and the location of the subframe monitored by the second user equipment when listening to the downlink according to the first identifier, the first paging period, and the nB, and then the second user equipment monitors the downlink according to the second user equipment.
  • the location of the radio frame and the subframe monitored by the way determines the location of the radio frame and the subframe monitored by the second user equipment in the sidelink.
  • the second user equipment determines the listening time for listening to the second message, it is not necessary to always listen to the sidelink, and only needs to wake up at the listening time to listen to the second message.
  • the second user equipment may determine the location of the radio frame and the location of the subframe that the first user equipment listens to when listening to the downlink according to the following formula.
  • the SFN is the location of the subframe; T is the first paging cycle; N is min (T, nB), and is used to indicate the number of radio frames included in a first paging cycle; Ns:max(1, nB /T), used to indicate the number of subframes included in a radio frame; UE_ID is the first identifier.
  • the SFN obtained by Equation 1 can determine the location of the radio frame monitored by the second user equipment when listening to the downlink.
  • i_s can be obtained, and according to the value of i_s and the value of NS and the position of the subframe.
  • the relationship table can determine the location of the radio frame that the second user equipment listens to when listening to the downlink.
  • the value of the i_s corresponding to the FDD system and the TDD system is different from the correspondence between the value of the NS and the subframe position.
  • the second user equipment adds a first offset to the subframe position monitored by the second user equipment when the second user equipment listens to the downlink, where the first offset is greater than or equal to a positive integer of 0; or,
  • the second user equipment listens to the downlink of the second user equipment at the location of the subframe monitored by the sidelink
  • the position of the subframe monitored by the waypoint plus the second offset, the first subframe in the resource pool that can be used to transmit the second message, and the second offset is a positive integer greater than or equal to 0.
  • the second user equipment determines the listening time of the second message, which can be implemented as follows:
  • the second user equipment determines that the second user equipment needs to monitor the resource pool period number of the second message in a first paging period, where the resource pool period number is the first identifier mod N, and then the second user equipment determines During a resource pool period, the second user equipment needs to monitor the subframe number of the second message, and the subframe number is floor (first identifier /N) mod M, and the second user equipment can then use the resource pool period number and the subframe. The number determines the subframe position at which the second user equipment listens on the sidelink.
  • the second user equipment determines the listening time for listening to the second message, and may also be implemented as:
  • the device monitors the frame number and the subframe number of the second message on the sidelink, where SL_offset is a resource pool offset.
  • the present application provides an apparatus for transmitting a paging message, where the apparatus may implement the functions performed by the first user equipment in the foregoing first aspect, and the functions may be implemented by hardware, or may be performed by hardware.
  • Software Implementation The hardware or software includes one or more modules corresponding to the above functions.
  • the apparatus includes a processor and a communication interface configured to support the apparatus to perform the corresponding functions of the above methods.
  • the communication interface is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • the present application provides an apparatus for transmitting a paging message, where the apparatus may implement the functions performed by the second user equipment in the foregoing second aspect, and the functions may be implemented by hardware, or may be performed by hardware.
  • Software Implementation The hardware or software includes one or more modules corresponding to the above functions.
  • the apparatus includes a processor and a communication interface configured to support the apparatus to perform the corresponding functions of the above methods.
  • the communication interface is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • the application provides a system for transmitting a paging message, including the first user equipment, the second user equipment, and the network equipment in the foregoing aspect.
  • the present application provides a computer storage medium for storing computer software instructions for use in the first user equipment, including a program designed to perform the above aspects.
  • the application example provides a computer storage medium for storing computer software instructions used by the second user equipment end, which includes a program designed to perform the above aspects.
  • the base station directly sends a paging message to the second user equipment.
  • the base station may Sending the first message to the first user equipment, where the first user equipment and the second user equipment determine the listening time of the second user equipment to listen to the second message, and the first user equipment can be used for paging in the listening time.
  • the second message of the second user equipment is sent to the second user equipment. Since the first user equipment is generally within the coverage of the base station, the second user equipment can receive the first user equipment even if the second user equipment is not within the coverage of the base station. To the paging message.
  • FIG. 1 is a schematic structural diagram of a network structure according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of another network structure provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for transmitting a paging message according to an embodiment of the present application
  • FIG. 4 is a flowchart of another method for transmitting a paging message according to an embodiment of the present application
  • FIG. 5 is an exemplary schematic diagram of a method for transmitting a paging message according to an embodiment of the present application
  • FIG. 6 is an exemplary schematic diagram of another method for transmitting a paging message according to an embodiment of the present disclosure
  • FIG. 7 is an exemplary schematic diagram of another method for transmitting a paging message according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another method for transmitting a paging message according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a logical structure of an apparatus for transmitting a paging message according to an embodiment of the present application
  • FIG. 13 is a schematic structural diagram of another apparatus for transmitting a paging message according to an embodiment of the present application.
  • a User Equipment also called a terminal, is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • Common user devices include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • a base station also known as a radio access network (RAN) device, is a device that accesses a user equipment to a wireless network, including but not limited to: an evolved Node B (eNB), a wireless network.
  • Radio network controller RNC
  • Node B NB
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • HNB BaseBand Unit
  • future network such as a 5G network (such as a network applying a new radio technology), a Node B (gNB) that continues to evolve.
  • gNB Node B
  • it may also include a Wifi access point (AP), a transmission and reception point (TRP), and the like.
  • AP Wifi access point
  • TRP transmission and reception point
  • first and second and the like in the specification and claims of the present application are used to distinguish different objects, and are not intended to describe a particular order of the objects.
  • the first user equipment in the application may be an eRelay UE
  • the second user equipment may be an eRemote UE.
  • the principle of the present application is that the base station sends a paging message that needs to be sent to the eRemote UE to the eRelay UE through the downlink, and then the eRelay UE sends the paging message to the eRemote UE through the sidelink (hereinafter, the eRelay UE passes the eRemote UE to the eRemote UE)
  • the paging message sent by the sidelink is called an SL paging message).
  • the method for the eRelay UE to send the SL paging message to the eRemote UE is: the eRelay UE determines the listening time of the eRemote UE to listen to the paging message by using the identifier of the eRemote UE and the UE-specific Paging cycle, and acquires the LA paging message allocated by the base station.
  • the eRelay UE sends a paging message to the eRemote UE using the resources allocated by the base station during the listening time.
  • the eRemote UE also communicates with the eRelay UE to determine the listening time and listen to the SL paging message sent by the eRelay UE.
  • the base station does not need to directly send a paging message to the eRemote UE, and even if the eRemote UE is not within the coverage of the base station, the paging message can be received by the eRelay UE.
  • the network architecture includes: a base station 101, an eRelay UE 102 within the coverage of the base station 101, and a plurality of eRemote UEs 103 having a sidelink connection with the eRelay UE 102.
  • the eRemote UE103 has the characteristics of small size, low power consumption, and the like, and is generally a wearable device, such as a smart watch or a smart hand.
  • the base station 101 and the eRelay UE 102 can communicate between the uplink and the downlink.
  • the eRelay UE 102 and the eRemote UE 103 can communicate through the sidelink communication technology, and the communication link between the eRelay UE 102 and the eRemote UE 103 can be referred to as a side link, and between the eRelay UE 102 and the eRemote UE 103
  • the communication can be performed by using the non-3GPP access technology, for example, the Bluetooth access technology, the WALN access technology, and the like.
  • the present application does not limit this.
  • the following is an example in which the eRelay UE 102 and the eRemote UE 103 communicate with each other through sidelink communication.
  • FIG. 1 is only a schematic diagram of a network architecture applied in the present application. In actual deployment, the number of devices in the network structure is not limited to the number of devices shown in FIG. 1.
  • the base station 101 may include: a communication interface 1011, a processor 1012, a memory 1013, and at least one communication bus 1014.
  • the communication bus 101 is used to implement connection and mutual communication between the devices.
  • the eRelay UE 102 may include: Communication interface 1021, processor 1022, memory 1023, and at least one communication bus 1024 for implementing connection and mutual communication between these devices;
  • eRemote UE 103 may include: communication interface 1031, processor 1032, memory 1033, and at least A communication bus 1034 is used to implement the connections and intercommunication between these devices.
  • the communication interface 1011, the communication interface 1021, and the communication interface 1031 can be implemented by an antenna, and can be used for data interaction with an external network element.
  • the communication interface 1011 of the base station 101 can send and receive data packets with the eRelay UE 102 or Other information, and the communication interface 1011 of the base station 101 can also send and receive data packets or other information between the eRemote UE 103 (the connection relationship between the communication interface 1011 and the communication interface 1031 is omitted in FIG. 2); the communication interface 1021 of the eRelay UE 102 can Transmitting or transmitting data packets or other information between the base station 101 or the eRemote UE 103.
  • the communication interface 1031 may send the data of the eRemote UE 103 and other information to the communication interface 1021. After receiving the data or other information, the communication interface 1021 sends data or other information to the communication interface 1011 through the radio bearer between the eRelay UE 102 and the base station. And handed over to the base station 101 for processing.
  • the processor 1012, the processor 1022, and the processor 1032 may be a central processing unit (CPU), may be an application specific integrated circuit (ASIC), or be configured to be implemented.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • DSP Digital Singnal Processor
  • FPGAs Field Programmable Gate Arrays
  • the processor 1012, the processor 1022, and the processor 1032 have processing management functions.
  • the processor 1012 in the base station 101 can process the data or information sent by the received eRelay UE 102, and the processor 1022 in the eRelay UE 102 can The received data or information transmitted by the eRemote UE0103 is processed, and the data or information sent by the base station 101 can also be processed.
  • the processor 1032 in the eRemote UE 103 can process data or information generated by the Remote UE 103 itself or process information or data sent by other devices.
  • the memory 1013, the memory 1023, and the memory 1033 may be a volatile memory such as a random access memory (RAM) or a non-volatile memory.
  • RAM random access memory
  • non-volatile memory For example, read-only memory (English: Read-Only Memory, ROM), flash memory, hard disk drive (HDD) or solid state drive (SSD); or the above type of memory The combination.
  • the memory 1013, the memory 1023, and the memory 1033 may be The data or program code supporting the data transmission method according to the embodiment of the present invention is stored, so that the processor 1012, the processor 1022, and the processor 1032 perform the embodiments of the present invention according to data or program code stored in the memory of the device in which the device is located. Data transfer method.
  • the communication bus 1014, the communication bus 1024, and the communication bus 1034 can be divided into an address bus, a data bus, a control bus, etc., and can be an industry standard architecture (Industry Standard Architecture, ISA) bus, and an external device interconnection (English: Peripheral Component) , PCI) bus or extended industry standard architecture (English: Extended Industry Standard Architecture, EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the embodiment of the present application provides a transmission search.
  • the method of calling a message is as shown in FIG. 3, and the method includes:
  • the network device sends a first message to the first user equipment, where the first message is used to page the second user equipment, and the first message includes at least paging information of the second user equipment.
  • the paging information of the second user equipment includes the second user equipment identifier and the core network domain information, and the core network domain information may be a Circuit Switching (CS) domain or a Packet Switching (PS) domain.
  • CS Circuit Switching
  • PS Packet Switching
  • the network device in this step may be a base station, and the first user equipment in the embodiment of the present application may be an eRelay UE, and the second user equipment may be an eRemote UE, and the second user equipment described in this embodiment is A second user device having a link with the first user device.
  • the base station When the base station needs to send data to the eRemote UE in the RRC_IDLE state, it needs to send a paging message to the eRemote UE, thereby triggering the eRemote UE to enter the RRC_CONNECTED state.
  • the base station sends the paging message to the eRelay UE, and the eRelay UE further sends the paging message to the eRemote UE.
  • the first message sent by the base station to the eRelay UE may be a broadcast message or a dedicated message sent to the eRelay UE.
  • the first message may include paging information of multiple eRemote UEs that the base station needs to send a paging message, where the paging information of the eRemote UE that establishes the sidelink with the eRelay UE is included, and includes The paging information of the eRemote UE that does not establish a sidelink with the eRelay UE; when the first message is a dedicated message sent to the eRelay UE, the first message includes paging information of multiple eRemote UEs that the base station needs to send the paging message, and these
  • the eRemote UE is an eRemote UE that has established a sidelink with the eRelay UE.
  • the first user equipment generates a second message according to the first message, where the second message is used to page the second user equipment, and the second paging message includes the paging information of the second user equipment.
  • the eRelay UE needs to filter the paging information of the eRemote UE with the sidelink from the first message, and generate a second message for each eRemote UE that is selected, corresponding to The second message of each eRemote UE respectively includes paging information of the respective eRemote UE.
  • the eRelay UE generates a second message, the second The message includes paging information of all eRemote UEs carried in the first message.
  • the eRelay UE does not perform any screening, and directly forwards the first message to at least one eRemote UE with its own sidelink.
  • the eRelay UE needs to obtain the paging information of the eRemote UE in the first message, and generate a second message for each eRemote UE according to the first message, corresponding to the second of each eRemote UE.
  • the messages respectively contain paging information of the respective eRemote UEs.
  • the eRelay UE generates a second message, where the second message includes paging information of all eRemote UEs carried in the first message.
  • the first message received by the eRelay UE1 is a broadcast message, and the first message carries paging information of three second user equipments, which are eRemote UE1, eRemote UE2, and eRemote UE3, respectively.
  • eRemote UE1 There is a sidelink connection between eRemote UE1 and eRemote UE2 and eRelay UE1, and a sidelink connection exists between eRemote UE3 and eRelay UE2.
  • the eRemote UE1 needs to generate the second message for the eRemote UE1 and the eRemote UE2, and the second message corresponding to the eRemote UE1 includes the paging information of the eRemote UE1, and the second message corresponding to the eRemote UE2 includes the paging information of the eRemote UE2.
  • the first user equipment determines a listening time for the second user equipment to listen to the second message.
  • the first user equipment determines a resource used to send the second message.
  • step 302 does not limit the execution order between step 302, step 303, and step 304.
  • the second user equipment determines a listening time for listening to the second message.
  • the method for determining the listening time by the second user equipment is the same as the method for determining the listening time by the first user equipment, but the method for the second user equipment to obtain the parameter for determining the listening time and the method for obtaining the monitoring time by the first user equipment.
  • the method of information is different.
  • step 305 does not limit the execution sequence between step 305 and step 302, step 303, and step 304 above, and step 305 only needs to be performed before step 306.
  • the first user equipment sends a second message to the second user equipment by using a resource for sending the second message at the listening time.
  • the second user equipment monitors the second message sent by the first user equipment during the listening time.
  • both the first user equipment and the second user equipment have determined that the second user equipment listens to the monitoring time of the second message, and the first user equipment sends the second message at the listening time, where the second user equipment is The second message can be monitored at the listening time.
  • the second user equipment receives the second message.
  • the second user equipment After receiving the second message, the second user equipment also needs to notify the upper layer protocol layer of the device identifier, so that the upper layer protocol layer triggers the second user equipment to initiate the RRC connection establishment process, and transitions to the RRC_CONNECTED state.
  • the method for transmitting a paging message may be unable to send a paging message directly to the second user equipment in the prior art, and the second user equipment may not be within the signal coverage of the base station.
  • the base station may first send the first message to the first user equipment, and then the first user equipment and the second user equipment determine the listening time of the second user equipment to listen to the second message.
  • a user equipment can send a second message for paging the second user equipment to the second user equipment at the listening time. Since the first user equipment is generally within the coverage of the base station, even if the second user equipment is not in the Within the coverage of the base station, the paging message can also be received by the first user equipment.
  • the eRemote UE directly receives the paging message sent by the base station and consumes a higher power, and receiving the paging message through the sidelink between the eRemote UE and the eRelay UE can reduce the consumed power.
  • both the first user equipment and the second user equipment need to first determine the listening time of the second user equipment to listen to the second message, and then the first user equipment passes the sidelink to the second user at the listening time.
  • the device sends the second message to enable the second user equipment to receive the second message at the listening time.
  • the parameters required for determining the listening time are obtained, and based on this, in an implementation manner provided by the embodiment of the present invention, the obtaining determining is monitored.
  • the method of parameters required at time is as shown in FIG. 4, and the method includes:
  • the second user equipment sends a third message to the first user equipment, where the third message carries information used to determine the listening time.
  • the information used to determine the listening time in the third message may include a specific paging period of the second user equipment (ie, a UE-specific Paging cycle of the eRemote UE), and a default Paging cycle broadcast by the base station. At least one of the second user equipment identification.
  • the first user equipment and the second user equipment need to use the first identifier when determining the listening time, and the first identifier may be the first user equipment identifier or the second user equipment identifier, the first user.
  • the device and the second user equipment negotiate in advance whether the first identifier used is the first user equipment identifier or the second user equipment identifier. It can be understood that when the first identifier used is the second user equipment identifier, the third user equipment identifier is included in the third message.
  • the third message may be a newly defined PC5-S message transmitted between the eRemote UE and the eRelay UE.
  • the third message may be determined as a paging monitoring request message.
  • the third message may also be an existing message, for example, a request message (Direct_Communicaiton_Request), which may be sent by the eRemote UE, for establishing a Sidelink connection between the eRemote UE and the eRelay UE, that is, the eRemote UE sends a establish sidelink connection to the eRelay UE.
  • a request message (Direct_Communicaiton_Request)
  • the request message When the request message is received, the information contained in the third message described above may be carried in the request message.
  • the first user equipment sends a seventh message to the second user equipment.
  • the first user equipment After receiving the third message, the first user equipment replies with the seventh message to the second user equipment, when the first identifier used by the first user equipment and the second user equipment determines that the first identifier is the first user equipment identifier.
  • the first user equipment identifier needs to be carried in the seventh message.
  • the second user equipment may determine the listening time by nB (the number of subframes included in one paging cycle), the default paging cycle broadcast by the network device, and some information known by the first user equipment, or the first user.
  • the device may also determine the listening time through the resource pool configuration information and some information known by the first user equipment.
  • the seventh message may carry at least one of nB and a system default paging cycle broadcast by the network device; or
  • the seventh message may carry resource pool configuration information configured by the network device for transmitting the second message, where the resource pool configuration information includes at least one of the following information:
  • bitmap bitmap for indicating a subframe in which the second message is transmitted
  • a frequency domain resource location for transmitting the second message A frequency domain resource location for transmitting the second message.
  • the seventh message may further include an offset PO_offset for receiving the second message configured by the first user equipment for the second user equipment, where PO_offset is the first user equipment according to the second user equipment identifier and the paging period.
  • An offset configured for the second user equipment to determine a subframe position at which the second user equipment listens for the second message.
  • the seventh message may be a newly defined PC5-S message transmitted between the eRemote UE and the eRemote UE.
  • the seventh message can be determined as a Paging Monitoring Reponse.
  • the seventh message may also be an existing message, for example, a response message (Direct_Communicaiton_Reponse) that may be sent by the eRelay UE to establish a Sidelink connection between the eRemote UE and the eRelay UE, that is, the eRemote UE sends a establish sidelink connection to the eRelay UE.
  • the response message may be carried in the request message carrying the information contained in the seventh message described above.
  • the foregoing seventh message may also be a message periodically broadcast by the second user equipment, where the broadcast message may be a newly defined sidelink between the first user equipment and the second user equipment.
  • the broadcast message sent on the broadcast message may also be an existing one.
  • the first user may receive the broadcast message through the sidelink, and then obtain the information carried in the broadcast message.
  • the first user equipment may further obtain, from the network device, the second user equipment identifier, and the UE-specific Paging cycle of the second user equipment, used to determine the monitoring time, where the network side device may Sending a fourth message to the first user equipment, where the fourth message carries the information of the UE-specific Paging cycle of the second user equipment for determining the listening time.
  • the information for determining the listening time includes at least one of a second user equipment identifier, a system default paging period, and a specific paging period of the second user equipment.
  • the base station may separately send a fourth message of the UE-specific Paging cycle carrying the eRemote UE to the eRelay UE in the form of a dedicated message, or may be in the paging.
  • the eRemote UE sends the UE-specific Paging cycle of the eRemote UE to the eRelay UE.
  • the network side device includes the MME and the base station. First, the MME sends a paging message of the UE-specific Paging cycle carrying the eRemote UE to the base station.
  • the base station After receiving the paging message, the base station sends a paging message of the UE-specific Paging cycle of the eRemote UE to the eRelay UE.
  • the fourth message may be the first message described in the embodiment shown in FIG. That is, the first message may also include a specific paging cycle of the second user equipment.
  • the first user equipment and the second user equipment may determine, according to the information obtained by the first user equipment and the second user equipment, that the second user equipment monitors the second message, in the determining, Before the second user equipment monitors the listening time of the second message, both the first user equipment and the second user equipment need to determine a first identifier for determining the listening time, and a first paging period for determining the first listening time.
  • the first identifier is the first user equipment identifier or the second user equipment identifier, that is, the device identifier of the eRelay UE or the device identifier of the eRemote UE.
  • the device identifier may be an International Mobile Subscriber Identity (IMSI), an S-TMSI, an IMSI mod 1024 of the user equipment, or other identifiers that may represent the identity of the user equipment.
  • IMSI International Mobile Subscriber Identity
  • S-TMSI S-TMSI
  • IMSI mod 1024 of the user equipment
  • the first paging cycle may be a specific paging cycle of the second user equipment, or a smaller one of a specific paging cycle of the second user equipment and a system default paging cycle broadcast by the network device, ie, the first paging cycle. It may be the UE-specific Paging cycle of the eRemote UE, or the smaller of the UE-specific Paging cycle of the eRemote UE and the default Paging cycle broadcast by the base station.
  • the listening time can be determined according to the information used to determine the listening time.
  • the method for determining the listening time is the same as the method for determining the listening time by the first user equipment and the second user equipment.
  • the following uses the first user equipment as an example for description.
  • the following embodiments of the present application provide the following three methods for determining the listening time.
  • the first user equipment determines the location of the radio frame and the location of the subframe monitored by the second user equipment in the sidelink according to the first identifier, the first paging cycle, and the nB.
  • the specific determining method is: first, the first user equipment determines, according to the first identifier, the first paging period, and the nB, the location of the radio frame and the location of the subframe monitored by the second user equipment when listening to the downlink, and then according to the The location of the radio frame and the subframe monitored by the second user equipment when listening to the downlink, and determining the location of the radio frame and the location of the subframe monitored by the second user equipment in the sidelink.
  • the location of the radio frame and the location of the subframe monitored by the eRemote UE when the Uu interface listens to the downlink may be determined according to the following formula.
  • SFN is the location of the subframe
  • T is the first paging cycle
  • N is min(T, nB), It indicates the number of radio frames included in a first paging cycle
  • Ns:max(1, nB/T) is used to indicate the number of subframes included in one radio frame
  • UE_ID is the first identifier.
  • the SFN obtained by the above formula 1 can determine the location of the radio frame monitored by the eRemote UE when listening to the downlink. According to Equation 2, i_s can be obtained, and then the eRemote UE can be determined to listen to the downlink according to i_s in combination with Table 1 or Table 2. The position of the sub-frame to be monitored.
  • the possible subframe positions are 0, 4, 5, and 9.
  • the position of the subframe monitored by the eRemote UE when listening to the downlink may be determined according to i_s and Table 1.
  • the possible subframe positions are 0, 1, 5, and 6.
  • the position of the subframe monitored by the eRemote UE when listening to the downlink may be determined according to i_s and Table 2.
  • the eRemote UE After determining the location of the radio frame and the location of the subframe monitored by the eRemote UE in the downlink, the eRemote UE can determine the location of the radio frame and the location of the subframe monitored by the eRemote UE, and the determining method includes the following two implementation manners:
  • Implementation 1 According to the position of the radio frame and the position of the subframe monitored by the configured eRemote UE while listening to the downlink, the eRemote UE determines the correspondence between the location of the radio frame and the location of the subframe monitored by the eRemote UE in the sidelink. The location of the radio frame and the location of the subframe monitored by the sidelink.
  • the location of the radio frame and the location of the subframe monitored by the eRemote UE while listening to the downlink are the same as the location of the radio frame monitored by the eRemote UE in the sidelink and the position of the subframe, as shown in FIG. 5, the eRemote UE is in the sidelink.
  • the radio frames to be monitored are the radio frame A and the radio frame X
  • the sub-frames to be monitored are the sub-frames represented by the shaded portions in the radio frame A and the radio frame X.
  • the location of the radio frame monitored by the eRemote UE while listening to the downlink is the same as the location of the radio frame monitored by the eRemote UE in the sidelink, and the subframe that the eRemote UE listens while listening to the downlink according to different TDD configurations.
  • the location of the subframe is different from the location of the subframe monitored by the eRemote UE in the sidelink.
  • Table 3 One possible correspondence is shown in Table 3.
  • the Uu PO in Table 3 represents the eRemote UE while listening to the downlink.
  • the SL PO represents the location of the subframe that the eRemote UE listens on in the sidelink.
  • the second user equipment adds a first offset to the subframe position monitored by the second user equipment when the second user equipment listens to the downlink, where the first offset is greater than or equal to 0. Positive integer.
  • the first offset may be configured by the first user equipment, or may be configured by the base station, or may be a preset value.
  • the subframe number is Subfrmae#0
  • the subframe whose subframe number is Subfrmae#0.
  • the first one of the resource pools may be used for transmission.
  • the subframe of the second message the second offset is a positive integer greater than or equal to 0.
  • the second offset may be configured by the first user equipment, or may be configured by the base station, or may be a preset value.
  • the subframe number is Subfrmae#0
  • the subframe number is Subfrmae #5.
  • the first user equipment determines, according to the resource pool configuration information, the first identifier, and the first paging cycle, the number N of resource pool periods included in one paging cycle of the second user equipment, and uses in each resource pool period.
  • the number M of subframes used to send the second message in each resource pool period may be determined, thereby determining each resource.
  • the index numbers corresponding to the subframes that can be used to send the second message in the pool cycle are 0, 1, 2, ..., M-1, respectively.
  • the bitmap of the subframe used for transmitting the second message in one resource pool period is (0010000000, 0000000100)
  • the numbers are 0,1 respectively. As shown in FIG.
  • the subframe for transmitting the second message according to the bitmap is a subframe corresponding to the shaded area, that is, in the resource period 1, there are two subframes for transmitting the second message, the first one.
  • the subframe used for transmitting the second message is the subframe 2 in the first frame, then the index number corresponding to the subframe is 0, and the second subframe used for transmitting the second message is the child in the first frame.
  • the first user equipment determines that the second user equipment needs to monitor the resource pool period number of the second message in a first paging period, and the resource pool period number is the first identifier mod N.
  • N is the number of resource pool periods included by the eRemote UE determined in the previous step in one paging cycle.
  • the first user equipment determines that the second user equipment needs to listen to the index number corresponding to the subframe of the second message in a resource pool period, and the subframe index number is floor (first identifier /N) mod M.
  • the first user equipment determines, according to the resource pool period number determined in step 2 and the subframe index number determined in step 3, the subframe position monitored by the second user equipment in the sidelink.
  • the subframe position corresponding to the subframe number may be determined from the resource pool period corresponding to the resource pool period number, where the subframe position is the second user equipment listening on the sidelink Subframe position.
  • the resource pool period is 20 ms
  • the resource pool offset is 10 ms
  • the bitmap of the uplink subframe position for transmitting the second message in one resource pool period is (0010000000, 0000000000).
  • two eRelay UEs have two connections to them (link)
  • the relationship is either an eRemote UE with a side-link connection established, and the paging periods of the two eRemote UEs are both 320 ms. If the subframe position of the eRemote UE1 allocated to the eRemote UE1 in each paging cycle is the subframe 0 shown in FIG.
  • subframe position allocated by the eRelay UE to the eRemote UE2 in each paging cycle is as shown in the figure.
  • the PO_offsets that the eRelay UE needs to configure for the two eRemote UEs are 2 and 22, respectively.
  • the first user equipment and the second user equipment may determine the listening time of the second user equipment to listen to the second message, and then the first user equipment sends the second message during the listening time, and the second user equipment may The second time is received by the second user equipment, so that the second user equipment does not need to listen to the second message on the downlink, and the power consumption is reduced, and the second user equipment does not need to constantly monitor the sidelink, and only needs to wake up at the listening time to receive the second message.
  • the message is fine.
  • the second user equipment Before the second user equipment sends the second message to the second user equipment, it is not only necessary to determine the listening time of the second user equipment to listen to the second message, but also to determine the resource for sending the second message, in another embodiment of the present invention.
  • the method for determining, by the first user equipment, the resource for sending the second message is described in the foregoing step 204.
  • the first user equipment After the first user equipment receives the first message sent by the network device, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, whether the first user equipment is in the RRC_IDLE state or the RRC_CONNECTED state, the first The user equipment determines that the second user equipment monitors the subframe of the second message in the sidelink, and further combines the frequency domain resource location for transmitting the second message included in the resource pool configuration information, in the determined subframe, etc.
  • the frequency domain resource for transmitting the second message is randomly selected in a probabilistic manner.
  • the first user equipment After the first user equipment receives the first message sent by the network device, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, if the first user equipment is in the RRC_IDLE state, the first user equipment Determining, by the second user equipment, the subframe of the second message in the sidelink, and combining the frequency domain resource location for transmitting the second message included in the resource pool configuration information, and randomly acquiring the subframe in the determined probability Select the frequency domain resource used to transmit the second message.
  • the first user equipment After the first user equipment receives the first message sent by the network device, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, if the first user equipment is in the RRC_CONNECTED state, the first user equipment Sending a fifth message to the network device, where the fifth message is used to request to obtain the resource for sending the second message, and after receiving the fifth message, the network device returns a sixth message to the first user equipment, where the sixth message includes the network device The resource information or resource pool information allocated by the first user equipment for sending the second message.
  • the fifth message includes at least one of the following information:
  • the purpose of the request is to indicate that the purpose of the fifth message is to acquire a resource for sending the second message;
  • the time at which the second message is sent may be the frame number and the subframe number used by the first user equipment to send the second message;
  • the number of paging information included in the second message, each second user equipment corresponding to one paging information, each paging information includes a second user equipment identifier and a core network domain information, and the core network domain information is circuit switched. (Circuit Switching, CS) domain or Packet Switching (PS) domain.
  • CS Circuit Switching
  • PS Packet Switching
  • the network device sends a first message for paging the second user equipment to the first user equipment by means of a broadcast, if it is determined that the first message includes a sidelink connection established with itself.
  • the device identifier of the eRemote UE the first user equipment determines that the second user equipment monitors the subframe of the second message in the sidelink, and further combines the frequency domain resource location for transmitting the second message included in the resource pool configuration information, and determines the In the subframe, the frequency domain resource for transmitting the second message is randomly selected in an equal probability manner.
  • the network device sends the first message for paging the second user equipment to the first user equipment in a manner of a dedicated message, where the first message is further used to transmit the second resource.
  • the frequency domain resource location, and the first user equipment after determining that the second user equipment listens to the subframe of the second message in the sidelink, may use the frequency domain resource location carried in the first message in the determined subframe.
  • the frequency domain resource to send a second message to the second user equipment.
  • the network side device When the network device needs to send the first message to the first user equipment, if the first user equipment is in the RRC_IDLE state or the ECM_IDLE state, the network side device first sends a paging message to the first user equipment, so that the first user equipment converts Go to the RRC_CONNECTED state ECM_CONNECTED state. After the first user equipment is in the RRC_CONNECTED state or the ECM_CONNECTED state, the network device sends a first message for paging the second user equipment to the first user equipment in the form of a dedicated message, where the first message is further carried for transmission.
  • the frequency domain resource location of the second resource, and the first user equipment, after determining that the second user equipment listens to the subframe of the second message in the sidelink, can use the frequency domain resource carried in the first message in the determined subframe.
  • the frequency domain resource indicated by the location sends a second message to the second user equipment.
  • the MME when the MME needs to send a paging message to the eRemote UE that has a sidelink connection with the eRelay UE by using the eRelay UE, the MME first determines the status of the eRelay UE, and if it is determined that the eRelay UE is in the RRC_IDLE state or ECM_IDLE The MME sends a paging message to the eRelay UE to trigger the eRelay UE to perform state transition.
  • the MME After the MME determines that the eRelay UE enters the ECM_CONNECTED and RRC_CONNECTED states, the MME sends a paging message for paging the eRemote UE to the base station, and then the base station sends a first message for paging the eRemote UE to the eRelay UE by using dedicated signaling, first.
  • the message carries this The device identifier of the eRemote UE and the location of the frequency domain resource used to send the second message.
  • the eRemote UE After the eRelay UE determines the listening time of the second message, the eRemote UE can send the second message to the eRemote UE by using the frequency domain resource indicated by the frequency domain resource location carried in the first message.
  • the first user equipment When the first user equipment receives the first message sent by the network device for paging the eRemote UE, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, and the first user equipment is in the RRC_IDLE In the state, the first user equipment may trigger an RRC connection setup procedure to transition to the RRC_CONNECTED state. After being transferred to the RRC_CONNECTED state, the first user equipment sends a fifth message to the network device, where the fifth message is used to request to obtain the resource for sending the second message, and after receiving the fifth message, the network device returns the first message to the first user equipment.
  • the sixth message includes a resource information or resource pool information allocated by the network device for the first user equipment to send the second message.
  • the fifth message includes at least one of the following information:
  • the purpose of the request is to indicate that the purpose of the fifth message is to acquire a resource for sending the second message;
  • the time at which the second message is sent may be the frame number and the subframe number used by the first user equipment to send the second message;
  • the number of paging information included in the second message, each second user equipment corresponding to one paging information, each paging information includes a second user equipment identifier and a core network domain information, and the core network domain information is circuit switched. (Circuit Switching, CS) domain or Packet Switching (PS) domain.
  • CS Circuit Switching
  • PS Packet Switching
  • the first The user equipment can transmit a paging message for paging the second user equipment to the second user equipment by using the sidelink.
  • the embodiment of the present application provides a protocol stack, as shown in the figure. 8 is shown.
  • the base station can transmit the first message through the Uu interface of the RRC layer, that is, the base station can send the first message to the eRelay through the Paging Control Channel (PCCH) and the Paging Control Channel (PCH) of the air interface.
  • PCCH Paging Control Channel
  • PCH Paging Control Channel
  • the RRC layer of the eRelay UE After the RRC layer of the eRelay UE receives the first message sent by the base station through the Uu interface, if it is determined that the first message includes the device identifier of the eRemote UE that has established a sidelink connection with itself, the RRC layer of the eRelay UE generates the device including the eRemote UE. The second message is identified and the second message is sent to the RLC layer of PC5. Then, in the transparent transmission mode, the RLC layer of the PC5 does not perform any processing on the second message, and directly sends the second message to the PC5 through the defined Stand-Alone Dedicated Control Channel (SPCCH) for transmitting the second message.
  • SPCCH Stand-Alone Dedicated Control Channel
  • the MAC layer of the PC5 does not perform any processing on the second message, and directly sends the second message to the physical layer (PHY) layer of the PC5 through the transport channel SL-PCH for transmitting the second message.
  • PHY physical layer
  • the PHY layer of the PC5 of the eRemote UE After receiving the second message, the PHY layer of the PC5 of the eRemote UE transmits the second message to the MAC layer of the PC5 through the transport channel SL-PCH for transmitting the second message, and then the MAC layer of the PC5 transmits the message through the SPCCH. Give the RRC layer. If the second message includes the device identifier of the eRemote UE, the RRC layer transmits the device identifier of the eRemote UE to the upper protocol layer.
  • the configuration of the protocol stack shown in FIG. 8 can also be implemented as the configuration shown in FIG. 9.
  • Another embodiment of the present application also provides another protocol stack, as shown in FIG.
  • the base station may transmit the first message through the Uu interface of the PDCP layer. Specifically, the base station may send a dedicated message to the eRelay UE through the DCCH and the DCH of the air interface: an RRC connection reconfiguration message, and an RRC connection reconfiguration message. Contains the first message.
  • the process of transmitting the message by the subsequent eRelay UE and the eRemote UE is the same as that in the embodiment corresponding to FIG. 8, and details are not described herein again.
  • the configuration of the protocol stack shown in FIG. 10 can also be replaced with the configuration shown in FIG.
  • the second message generated by the first user equipment by using the RRC layer is applicable to any short-distance connection technology, that is, the first user equipment and the second user equipment may not only be transmitted through the sidelink.
  • the second message may also be used to transmit the second message by means of a Wireless Local Area Networks (WLAN) or the like.
  • WLAN Wireless Local Area Networks
  • the solution provided by the embodiment of the present invention is mainly introduced from the perspectives of the first user equipment and the second user equipment. It can be understood that the first user equipment and the second user equipment comprise corresponding hardware structures and/or software modules for performing the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the embodiment of the present application may perform the division of the function modules on the first user equipment and the second user equipment according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated in the In a processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and may be further divided in actual implementation.
  • FIG. 12 is a schematic diagram showing a possible structure of a first user equipment (eRelay UE) involved in the foregoing embodiment.
  • the first user equipment includes: a receiving module 121, which generates The module 122, the determining module 123, the obtaining module 124, the sending module 125, and the converting module 126.
  • the receiving module 121 is configured to support the first user equipment to receive the first message sent by the network device in step 301 in FIG. 3, and the third message sent by the second user equipment in step 401 in FIG. 4; the generating module 122, The first user equipment is configured to perform step 302 in FIG. 3; the determining module 123 is configured to support the first user equipment to perform step 304 in FIG. 3; and the obtaining module 124 is configured to support the first user equipment to perform the method in FIG. Step 305:
  • the sending module 125 is configured to support the first user equipment to perform step 306 in FIG. 3, and step 402 in FIG. 4; the converting module 126 is configured to support the first user equipment to trigger the RRC establishment process, and switch to the RRC_CONNRECTED state. .
  • the generating module 122, the determining module 123, the obtaining module 124, and the converting module 126 shown in FIG. 12 can be integrated into the processor 1022 shown in FIG. 2 to make the processor 1022.
  • the execution module 122, the determination module 123, the acquisition module 124, and the specific function of the conversion module 126, the receiving module 121 and the sending module 125 can be integrated into the communication interface 1021 shown in FIG. 2, so that the communication interface 1021 executes the receiving module 121 and transmits The specific function of module 125.
  • FIG. 13 is a schematic diagram showing a possible structure of a second user equipment (eRemote UE) involved in the foregoing embodiment.
  • the second user equipment includes: a determining module 131, a listening module 132, a sending module 133, and a receiving module 134.
  • the determining module 131 is configured to support the second user equipment to perform step 305 in FIG. 3; the listening module 132 is configured to support the second user equipment to perform step 307 in FIG. 3; and the sending module 133 is configured to support the second user.
  • the device performs step 401 in FIG. 4; the receiving module 134 is configured to support the second user equipment to perform the second message sent by the first user equipment in step 306 in FIG. 3, and the seventh message sent by the first user equipment in FIG. .
  • the determining module 131 shown in FIG. 13 can be integrated into the processor 1032 shown in FIG. 2, so that the processor 1032 executes the determining module 131, and the listening module 132.
  • the specific function, the sending module 133, the receiving module 134 can be integrated in the communication interface 1031 shown in FIG. 2, so that the communication interface 1031 executes the sending module 133, and receives the specific function of the module 134.
  • the embodiment of the present application further provides a data transmission system, which may include the first user equipment, the second user equipment, and the network equipment described in any of the foregoing embodiments.
  • Embodiments of the present application also provide a computer storage medium for storing computer software instructions for use by the first user device, including a program designed to perform the steps performed by the first user device in the above embodiments.
  • the application example provides a computer storage medium for storing computer software instructions used by the second user equipment, which includes steps for executing the first user equipment in the foregoing embodiment.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the disclosed system, apparatus, and method 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 electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network devices. 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 functional unit may exist independently, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the present application can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present application which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk, etc. includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de transmission d'un message de radiomessagerie, se rapportant au domaine technique des communications, et résout le problème dans lequel un message de radiomessagerie transmis par une station de base ne peut pas être reçu lorsque l'UE eRemote est situé en dehors de la couverture de la station de base. Le procédé selon la présente invention consiste à : recevoir, par un premier équipement utilisateur, un premier message transmis à partir d'un dispositif de réseau, le premier message étant destiné à appeler un second équipement utilisateur et comprenant au moins des informations de radiomessagerie du second équipement utilisateur; le premier équipement utilisateur génère un second message selon le premier message, le second message étant destiné à appeler le second équipement utilisateur et comprenant les informations de radiomessagerie du second équipement utilisateur; et le premier équipement utilisateur détermine une période de surveillance dans laquelle le second équipement utilisateur surveille le second message, acquérant une ressource pour transmettre le second message, et utilisant la ressource pour transmettre le second message pour transmettre le second message au second équipement utilisateur dans la période de surveillance. Les solutions fournies par la présente invention sont appropriées pour une application à une transmission de message de radiomessagerie.
PCT/CN2017/078198 2017-01-25 2017-03-24 Procédé et dispositif de transmission de message de radiomessagerie WO2018137284A1 (fr)

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EP4152842A4 (fr) * 2020-05-29 2023-12-06 Huawei Technologies Co., Ltd. Procédé et appareil de communication
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WO2020207327A1 (fr) * 2019-04-12 2020-10-15 华为技术有限公司 Procédé et appareil de transmission de message
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CN111034255A (zh) * 2019-09-24 2020-04-17 北京小米移动软件有限公司 资源处理方法、装置及计算机存储介质
CN114424637A (zh) * 2019-09-30 2022-04-29 华为技术有限公司 寻呼的方法和装置
EP4149184A1 (fr) * 2020-05-07 2023-03-15 Hyundai Motor Company Procédé et dispositif de radiomessagerie dans une communication de liaison latérale
EP4152842A4 (fr) * 2020-05-29 2023-12-06 Huawei Technologies Co., Ltd. Procédé et appareil de communication
WO2022078447A1 (fr) * 2020-10-16 2022-04-21 夏普株式会社 Procédé de traitement pour ue relais et équipement utilisateur
WO2022199233A1 (fr) * 2021-03-25 2022-09-29 大唐移动通信设备有限公司 Procédé et appareil de radiomessagerie, et support d'enregistrement
WO2022236473A1 (fr) * 2021-05-08 2022-11-17 富士通株式会社 Procédé et appareil d'envoi d'informations, procédé et appareil de réception d'informations, et système
WO2024017356A1 (fr) * 2022-07-22 2024-01-25 展讯通信（上海）有限公司 Procédé, appareil et dispositif d'amélioration de radiomessagerie

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