WO2018195917A1 - 消息传输方法、装置及系统 - Google Patents

消息传输方法、装置及系统 Download PDF

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Publication number
WO2018195917A1
WO2018195917A1 PCT/CN2017/082445 CN2017082445W WO2018195917A1 WO 2018195917 A1 WO2018195917 A1 WO 2018195917A1 CN 2017082445 W CN2017082445 W CN 2017082445W WO 2018195917 A1 WO2018195917 A1 WO 2018195917A1
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WO
WIPO (PCT)
Prior art keywords
transmission information
paging
paging transmission
remote
relay
Prior art date
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PCT/CN2017/082445
Other languages
English (en)
French (fr)
Inventor
杨宁
Original Assignee
Oppo广东移动通信有限公司
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.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to US16/607,333 priority Critical patent/US11229007B2/en
Priority to JP2019556686A priority patent/JP2020519069A/ja
Priority to CN201780085096.8A priority patent/CN110235485B/zh
Priority to KR1020197032593A priority patent/KR102306682B1/ko
Priority to EP17907178.2A priority patent/EP3609250B1/en
Priority to PCT/CN2017/082445 priority patent/WO2018195917A1/zh
Publication of WO2018195917A1 publication Critical patent/WO2018195917A1/zh

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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
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present disclosure relates to the field of communication technology applications, and in particular, to a message transmission method, apparatus, and system.
  • the device-to-device (D2D) communication technology refers to a communication method in which two peer-to-peer user devices (English: User Equipment; user equipment) communicate directly. Further enhanced device-to-device (English: Further enhance Device-to-Device; abbreviation: FeD2D) communication technology is an improved technology based on D2D communication technology.
  • the relay (English: relay) UE is used as the remote end ( English: remote)
  • the relay device between the UE and the base station can perform data forwarding between the remote UE and the base station, and the base station stores the UE context of the relay UE and the remote UE (English: context).
  • the base station When the UE is in an idle state and the network side needs to perform data interaction with the UE, the base station informs the UE by using a paging message (English: paging).
  • the base station calculates paging transmission information according to the IMSI of the relaying UE, and the paging transmission information includes: paging time (English: Paging Occasion; abbreviation: PO) and paging frame (English: Paging Frame (abbreviation: PF) information, and sending a paging message to the relay UE based on the paging transmission information.
  • the base station needs to perform data interaction with the remote UE. If the paging transmission information is calculated according to the IMSI of the relay UE, the base station needs to obtain the connection status of the relay UE and the remote UE in real time through signaling. The relaying UE can transmit to the remote UE after obtaining the paging message, and more signaling may cause a large network signaling overhead.
  • the present invention provides a message transmission method, device and system.
  • the technical solution is as follows:
  • a message transmission method for a base station, and the method includes:
  • the two sets of paging transmission information include paging transmission information of the relay user equipment UE and paging transmission information of the remote UE, where the paging transmission information is used to indicate paging cancellation a relaying location between the base station and the remote UE;
  • the sending the paging message to the relay UE based on the two sets of paging transmission information includes:
  • the paging transmission information of the remote UE includes multiple paging transmission information
  • the target UE includes a remote UE, selecting one target paging transmission information in the paging transmission information of the remote UE;
  • the selecting one target paging transmission information in the paging transmission information of the remote UE includes:
  • the selecting according to the selection manner pre-agreed by the relay UE, selecting a target paging transmission information in the paging transmission information of the remote UE, includes:
  • a paging transmission information is randomly selected as the target paging transmission information in the paging transmission information of the remote UE.
  • the selecting according to the selection manner pre-agreed by the relay UE, selecting a target paging transmission information in the paging transmission information of the remote UE, includes:
  • the obtaining the two sets of paging transmission information includes:
  • the paging transmission information of the remote UE is calculated according to the pre-configured international mobile subscriber identity IMSI.
  • the obtaining the two sets of paging transmission information includes:
  • the relay UE After receiving the transmission mode change signaling sent by the relay UE, acquiring the two sets of paging transmission information, where the transmission mode change signaling is sent after the relay UE establishes a connection with the remote UE.
  • the paging transmission information includes: a paging moment and a paging frame information.
  • a second aspect provides a message transmission method, which is applied to a relay user equipment UE, where the method includes:
  • the two sets of paging transmission information include paging transmission information of the relay user equipment UE and paging transmission information of the remote UE, where the paging transmission information is used to indicate a paging message a relay location, where the relay UE is a relay device between the base station and the remote UE;
  • the receiving, according to the two sets of paging transmission information, the paging message sent by the base station includes:
  • the paging transmission information of the remote UE includes multiple paging transmission information
  • Receiving the paging message sent by the base station based on the two sets of paging transmission information including:
  • the subframe indicated by the target paging transmission information is monitored to receive a paging message sent by the base station.
  • the selecting one target paging transmission information in the paging transmission information of the remote UE includes:
  • the selecting according to the selection manner pre-agreed by the base station, selecting a target paging transmission information in the paging transmission information of the remote UE, includes:
  • the obtaining the two sets of paging transmission information includes:
  • the paging transmission information of the remote UE is calculated according to the pre-configured international mobile subscriber identity IMSI.
  • the method before the obtaining the two sets of paging transmission information, the method further includes:
  • the transmission mode change signaling is sent to the base station.
  • the paging transmission information includes: a paging moment and a paging frame information.
  • a third aspect provides a message transmission apparatus, which is applied to a base station, where the apparatus includes:
  • An acquiring module configured to acquire two sets of paging transmission information, where the two sets of paging transmission information include paging transmission information of a relay user equipment UE and paging transmission information of a remote UE, where the paging transmission information is used Instructing a transmission location of the paging message, the relaying UE is a relay device between the base station and the remote UE;
  • a sending module configured to send a paging message to the relay UE based on the two sets of paging transmission information.
  • the sending module includes:
  • An information acquisition submodule configured to determine paging transmission information of the target UE in the two sets of paging transmission information, where the target UE includes the relay UE and/or the remote UE;
  • a sending submodule configured to send a paging message to the relay UE based on paging transmission information of the target UE.
  • the paging transmission information of the remote UE includes multiple paging transmission information
  • the sending submodule includes:
  • selecting a submodule configured to: when the target UE includes a remote UE, select one target paging transmission information in paging transmission information of the remote UE;
  • a message sending submodule configured to send, by using the subframe indicated by the target paging transmission information, a paging message of the remote UE to the relay UE.
  • the selecting submodule is configured to:
  • the selecting submodule is specifically configured to:
  • the selecting submodule is specifically configured to:
  • the obtaining module is configured to:
  • the paging transmission information of the remote UE is calculated according to the pre-configured international mobile subscriber identity IMSI.
  • the obtaining module is configured to:
  • the relay UE After receiving the transmission mode change signaling sent by the relay UE, acquiring the two sets of paging transmission information, where the transmission mode change signaling is sent after the relay UE establishes a connection with the remote UE.
  • the paging transmission information includes: a paging moment and a paging frame information.
  • a fourth aspect provides a message transmission apparatus, which is applied to a relay user equipment UE, where the apparatus includes:
  • An acquiring module configured to acquire two sets of paging transmission information, where the two sets of paging transmission information include paging transmission information of a relay user equipment UE and paging transmission information of a remote UE, where the paging transmission information is used Instructing a transmission location of the paging message, where the relay UE is a relay device between the base station and the remote UE;
  • a receiving module configured to receive, according to the two sets of paging transmission information, a paging message sent by the base station.
  • the receiving module is configured to:
  • the paging transmission information of the remote UE includes multiple paging transmission information
  • the receiving module includes:
  • Selecting a submodule configured to select one target paging transmission information in paging transmission information of the remote UE
  • a monitoring submodule configured to monitor according to the subframe indicated by the target paging transmission information, to receive Receiving a paging message sent by the base station.
  • the selecting submodule is configured to:
  • the selecting submodule is specifically configured to:
  • the obtaining module is configured to:
  • the paging transmission information of the remote UE is calculated according to the pre-configured international mobile subscriber identity IMSI.
  • the device further includes:
  • the signaling transmission module is configured to send the transmission mode change signaling to the base station after the relay UE establishes a connection with the remote UE before acquiring the two sets of paging transmission information.
  • the paging transmission information includes: a paging moment and a paging frame information.
  • the fifth aspect provides a message transmission system, including: a relay UE, a remote UE, and a base station, where the base station includes the message transmission apparatus according to any one of the third aspects, where the relay UE includes any of the fourth aspect.
  • the message transmission device includes: a relay UE, a remote UE, and a base station, where the base station includes the message transmission apparatus according to any one of the third aspects, where the relay UE includes any of the fourth aspect.
  • the base station obtains two sets of paging transmission information, which are paging transmission information of the relay UE and paging transmission information of the remote UE, respectively, when the base station needs to relay the UE
  • the data exchange is performed, and the paging message is sent to the relay UE according to the paging transmission information of the relay UE.
  • the paging transmission information of the remote UE is sent to the relay UE.
  • the call message does not need to consider the connection status of the relay UE and the remote UE, and the relay UE only needs to receive the paging message sent by the base station based on the two sets of paging transmission information, and does not need to consider how many remote UEs are connected by itself.
  • the network signaling overhead is reduced, and the power consumption of the relay UE is also reduced.
  • FIG. 1 is a schematic diagram of an implementation environment involved in a message transmission method provided in some embodiments of the present invention
  • 2-1 is a schematic flowchart of a method for transmitting a message according to an embodiment of the present invention
  • 2-2 is a schematic flowchart of a method for sending a paging message to a relay UE based on two sets of paging transmission information according to an embodiment of the present invention
  • 2-3 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIGS. 2-4 are schematic structural diagrams of another communication system according to an embodiment of the present invention.
  • 3-1 is a block diagram of a message transmission apparatus according to an exemplary embodiment
  • FIG. 3-2 is a block diagram of a transmitting module according to an exemplary embodiment
  • 4-1 is a block diagram of a message transmission apparatus according to an exemplary embodiment
  • 4-2 is a block diagram of a receiving module according to an exemplary embodiment
  • 4-3 is a block diagram of another message transmission apparatus, according to an exemplary embodiment.
  • FIG. 5 is a block diagram of a message transmission system according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present invention.
  • the implementation environment may include a base station 11 and a plurality of UEs 12.
  • the plurality of UEs 12 include a relay UE 121 and a remote base station 122.
  • the relay UE 121 is directly connected to the base station 11 and can implement relaying of information between the base station 11 and the remote base station 122.
  • the base station 11 may be a next generation base station (English: generation node B; abbreviated as: gNB).
  • the base station 11 may be an evolved base station (English: evolved Node B; eNB for short).
  • the UE 12 can be a smartphone, a computer, a multimedia player, an e-reader, or a wearable device.
  • a connection can be established between the base station 11 and the relay UE 121 through the wireless network, and the connection between the relay UE 121 and the remote UE 122 can be established through the wireless network.
  • Uu direct connection state refers to the state in which the Uu interface of the base station 11 and the remote UE 122 establishes a radio resource control (English: Radio Resource Control; RRC for short) connection.
  • RRC Radio Resource Control
  • PC5 relay state refers to a state in which the base station 11 and the remote UE 122 perform data transmission by relaying the UE 121.
  • the remote UE 122 may be a smart watch
  • the relay UE 121 may be a smart phone
  • the smart watch and the smart phone may establish a Bluetooth connection
  • the data between the smart watch and the base station is transmitted through the smart phone.
  • the remote UE 122 may be the first smart phone
  • the relay UE 121 may be the second smart phone.
  • the first smart phone can establish an RRC connection with the base station
  • the second smart phone can also establish a wireless hotspot through the second smart phone.
  • the mobile phone transmits data between the first smart phone and the base station.
  • the base station informs the UE by using a paging message.
  • the UE can only perform subsequent response if it only listens to the paging message.
  • the network side such as the core network, manages multiple tracking areas (English: TrackingArea; TAC for short). Each TAC has multiple base stations.
  • the network side sends paging messages to the base stations under the same TAC.
  • the paging control channel (English: Paging Control Channel; PCC) is delivered to the UE.
  • the paging message usually carries a list of UE identity (English: identification; abbreviated as ID). If the paging message received by the UE carries a UE ID list, the UE can carry the UE message with its own UE ID. The UE ID is matched to determine if the paging message is calling itself.
  • the paging ID is a temporary mobile subscriber identity (S-Temporary Mobile Subscriber Identity; S-TMSI), the paging is a normal service call, where S is a system architecture evolution. (English: SystemArchitecture Evolution; abbreviation: SAE) short name; if the paging ID is International Mobile Subscriber Identity (English: International Mobile Subscriber Identity; IMSI), it means that this paging is an abnormal call, used for Error recovery on the network side. In this case, the UE needs to perform an attach (English: Attach) process.
  • S-TMSI is a shortened format of the globally unique Temporary UE Identity (English: Globally Unique Temporary UE Identity; GUTI) to ensure more efficient processing of wireless signaling (such as paging and Request for service).
  • IMSI is a mark that distinguishes UEs. Usually, its total length does not exceed 15 bits, and it is obtained by using numbers ranging from 0 to 9.
  • MCC Mobile country code included in IMSI Text: Mobile Country Code; abbreviation: MCC
  • MCC Mobile Country Code
  • MCC Mobile Country Code
  • MNC Mobile Network Code
  • MSIN Mobile Subscriber Identification Number
  • discontinuous reception International: Discontinuous Reception; DRX
  • a DRX cycle is defined, and the UE can only be in the corresponding paging frame in one DRX cycle (ie, The paging time (PO) on the PF) first listens to whether the physical downlink control channel (English: Physical Downlink Control Channel; PDCCH for short) carries the paging message - the temporary identifier of the wireless network (English: Paging-Radio NetworkTempory Identity; Abbreviation: P-RNTI), and then determine whether the corresponding physical downlink shared channel (English: Physical Downlink Shared Channel; PDSCH) carries a paging message.
  • PDCCH Physical Downlink Control Channel
  • the data on the PDSCH is received according to the parameter of the PDSCH indicated on the PDCCH; if the P-RNTI is not parsed by the UE on the PDCCH, the PDSCH physical channel does not need to be received,
  • the DRX cycle goes to sleep. With this mechanism, within one DRX cycle, the UE can receive the PDCCH only at the time position where the PO appears, and then receive the PDSCH as needed. At other times, you can sleep to save power.
  • the embodiment of the invention is applied to the scenario.
  • the message transmission method provided by the embodiment of the present invention is applied to the scenario of the paging message transmission. Specifically, as shown in FIG. 2-1, the message transmission method includes:
  • Step 201 After the relay UE establishes a connection with the remote UE, the relay UE sends a transmission mode change signaling to the base station.
  • the remote UE may establish an RRC connection with the base station or establish a connection with the base station by using the relay UE. For example, if the remote UE is a smart phone or a laptop, the connection status of the remote UE is directly connected from the Uu. The state is switched to the PC5 relay state, and the transmission mode is changed, that is, from direct transmission to indirect transmission. In other scenarios, the remote UE cannot establish an RRC connection with the base station but can establish a connection with the base station through the relay UE.
  • the remote UE is in a scenario of a smart watch or a smart bracelet, when the connection state of the remote UE is never switched to the state connected to the relay UE, the transmission mode is changed, that is, Untransferable becomes transitible.
  • the relay UE After the relay UE establishes a connection with the remote UE, it may send a transmission mode change signaling to the base station, and the transmission mode change signaling may be sent in multiple manners, for example, the relay UE may be connected to the remote UE.
  • the transmission mode change signaling is actively sent within a preset duration (eg, 2 ms) after the establishment is completed, or is passively transmitted under the trigger of the remote UE within a preset duration after the connection with the remote UE is established.
  • Transmission mode change signaling for example, the relay UE may send the transmission mode change signaling when determining that the remote UE needs to perform data transmission after the connection establishment with the remote UE is completed.
  • the data transmission triggering instruction may be sent to the relay UE, and the relay UE sends the transmission mode change signaling to the base station according to the data transmission triggering instruction;
  • the data to be transmitted may also be directly sent to the relay UE, and the relay UE sends the transmission mode change signaling to the base station according to the data, or directly transmits the transmission mode change signaling to the base station, and in the signaling. Carry the data that needs to be transmitted.
  • Step 202 After receiving the transmission mode change signaling sent by the relay UE, the base station acquires two sets of paging transmission information.
  • the base station may determine, according to the transmission mode change signaling sent by the relay UE, that the relay UE is cascaded to the remote UE, where the mode transmission change signaling includes the far The identity of the end UE (eg, the IMSI of the far end UE), based on which the base station can also determine which remote UE the relay UE is specifically connected to.
  • the base station can acquire two sets of paging transmission information for use in subsequent paging messages.
  • the two sets of paging transmission information include paging transmission information of the relay UE and paging transmission information of the remote UE, and the paging transmission information is used to indicate a transmission location of the paging message, where the transmission location is For a time position, the paging transmission information may include: information of PF and PO.
  • the PF is used to indicate a radio frame for sending a paging message, and the PF may include at least one paging moment, the unit is 10 ms (Chinese: millisecond), and the PO is used to indicate a subframe in which the paging message is sent, and the unit is 1 ms. .
  • the method for the base station to obtain two sets of paging transmission information mainly includes the following two aspects:
  • the base station acquires paging transmission information of the relay UE.
  • the method for the base station to obtain the paging transmission information of the relay UE may refer to the method for obtaining the paging transmission information of the traditional relay UE, for example, the content specified in Chapter 7.1 of the communication standard TS36.304, which may be based on the relay UE.
  • the IMSI calculates the paging transmission information of the relay UE, and can also refer to the following second aspect to obtain the paging transmission information of the remote UE, which is not described in detail in the embodiment of the present invention.
  • the base station acquires paging transmission information of the remote UE.
  • the method for obtaining the paging transmission information of the remote UE by the base station may be implemented in multiple manners.
  • the following three achievable modes are taken as an example for explanation.
  • the base station acquires a predetermined paging transmission information of the remote UE.
  • the management device on the network side can pre-configure the paging transmission information of the remote UE and send the information to the base station.
  • the management device is a mobility management node in the core network. : Mobility Management Entity; referred to as: MME).
  • MME Mobility Management Entity
  • the network side may send the paging transmission information of the remote UE to the base station by using the high layer signaling or the separately configured signaling, and the base station saves the paging transmission information of the remote UE and extracts when needed.
  • the process in which the base station acquires the paging transmission information of the predetermined remote UE is also the process of extracting the paging transmission information of the remote UE.
  • the paging transmission information of the remote UE may also be configured in the base station when the communication system is networked according to the protocol.
  • the base station may pre-calculate the paging transmission information of the remote UE, and save the paging transmission information and extract it when needed.
  • the process in which the base station acquires the paging transmission information of the predetermined remote UE is also the process of extracting the paging transmission information of the remote UE.
  • the base station calculates paging transmission information of the remote UE according to the pre-configured configuration parameters.
  • the management device on the network side may pre-configure the configuration parameter and send the configuration parameter to the base station.
  • the management device is an MME.
  • the network side may send the configuration parameter to the base station by using high-level signaling or separately configured signaling, and the base station saves the configuration parameter and extracts when the paging transmission information of the remote UE needs to be calculated.
  • the configuration parameters may include: a paging cycle (English: Paging Cycle) and a paging cycle number (abbreviation: nB). It should be noted that the foregoing configuration parameters may also be configured in the base station when the communication system is networked.
  • the paging transmission information of the remote UE may include multiple paging transmission information.
  • the base station may obtain the pre-configured configuration parameter and the configurable IMSI complete set, and calculate the multiple paging transmission information according to the configuration parameter and the configurable IMSI complete set, where the multiple configuration parameters include: paging The number of cycles and paging cycles.
  • the plurality of paging transmission information may satisfy the following paging transmission information calculation formula:
  • I_s floor(UE_ID/N)modNs
  • the SFN mod T is the paging time
  • T is the duration of the paging cycle
  • N is the number of radio frames in one paging cycle
  • div is divided, then T div N is T/N
  • UE_ID is configured.
  • the IMSI finds the result of 1024, "mod" represents the remainder operation, and UE_ID modN represents The UE_ID is divided by the remainder after N; i_s is the paging frame, and Ns is the number of subframes used to transmit the paging message in one radio frame.
  • the configurable IMSI corpus refers to all the IMSIs that the UE can configure. For example, the UE can allocate 1024 IMSIs, which are respectively 10000000-10001023, and the configurable IMSI complete set is 10000000-10001023. It should be noted that the above IMSI is only a schematic example, and the actual IMSI is usually composed of 11-15 digit decimal numbers.
  • the paging period is a duration of 256 radio frames, which is a maximum paging period, where the number of paging cycles is 1/16 of the duration of the paging cycle, which is a paging cycle. The minimum number of quantities.
  • 1024 POs and PFs can be obtained, and although the plurality of paging transmission information is calculated by using the algorithm, Since the time interval for paging transmission information is long, that is, the frequency at which the PO appears is low, the energy consumption of the relay UE to listen to the paging message can be effectively reduced.
  • the base station calculates paging transmission information of the remote UE according to the pre-configured IMSI.
  • the management device on the network side can pre-configure the IMSI and send it to the base station.
  • the management device is an MME.
  • the network side may send the IMSI to the base station by using high layer signaling or separately configured signaling, and the base station saves the IMSI and extracts when the paging transmission information of the remote UE needs to be calculated.
  • the foregoing IMSI may also be configured in the base station when the communication system is networked.
  • the pre-configured IMSI is usually fixed, which is independent of the IMSI of the relay UE of the individual and the IMSI of the remote UE of the individual, that is, the acquisition of the IMSI is not for a certain one. Relaying the IMSI of the UE and the IMSI of a remote UE.
  • the pre-configured IMSI may be at least one IMSI randomly selected by the network side in the configurable IMSI ensemble, or may be at least one IMSI selected in the configurable IMSI ensemble according to a preset rule, and the pre-configured IMSI may also be configured. It is a plurality of candidate IMSIs selected by the network side in the ensemble of the configurable IMSI, and then selected by the base station or at least one IMSI selected by the multiple candidate IMSIs according to a preset rule.
  • the process of calculating the plurality of paging transmission information may refer to the foregoing second implementation manner, that is, the pre-configured IMSI is brought into the paging transmission information calculation formula to obtain the PO and the PF. Therefore, the embodiments of the present invention will not be described again.
  • Step 203 The base station sends a paging message to the relay UE based on the two sets of paging transmission information.
  • the two groups of paging transmission information are sent to the relay UE.
  • Sending a paging message which may include:
  • Step 2031 The base station determines paging transmission information of the target UE in the two sets of paging transmission information, where the target UE includes a relay UE and/or a remote UE.
  • the base station needs to determine the target UE according to a specific scenario, and then perform determination of paging transmission information to perform paging message transmission based on the determined paging transmission information.
  • the relay UE is determined to be the target UE, and the paging transmission information of the relay UE is determined as the paging transmission information of the target UE; the network side needs and the remote end
  • the remote UE is determined to be the target UE, and the paging transmission information of the remote UE is determined as the paging transmission information of the target UE; the network side needs to perform data with both the relay UE and the remote UE.
  • the relay UE and the remote UE are both determined as the target UE, and the paging transmission information of the relay UE and the paging transmission information of the remote UE are determined as the paging transmission information of the target UE.
  • the paging message may include a UE ID list, and the UE ID list may include the ID of the target UE.
  • Step 2032 The base station sends a paging message to the relay UE based on the paging transmission information of the target UE.
  • the base station may send a paging message to the relay UE according to the paging transmission information of the relay UE, for example, the transmission location of the paging message indicated by the paging transmission information is specifically the location of the subframe, Then, the base station may send a paging message to the relay UE on the subframe indicated by the paging transmission information of the relay UE.
  • This embodiment of the present invention does not describe this.
  • the base station may send a paging message to the relay UE based on the paging transmission information of the remote UE, and when the paging transmission information of the remote UE includes a paging transmission information, The paging message is sent to the relay UE on the subframe indicated by the call transmission information.
  • the process of sending the paging message to the relay UE based on the paging transmission information of the target UE specifically includes the following steps:
  • Step x The base station selects a target paging transmission information in the paging transmission information of the remote UE.
  • the base station may select one target paging transmission information in the paging transmission information of the remote UE based on a selection manner pre-agreed with the relay UE.
  • the specific process is as follows:
  • the base station randomly selects one paging transmission information as the target paging transmission information in the paging transmission information of the remote UE.
  • the base station may calculate the reference paging transmission information according to the IMSI of the remote UE, and select a paging transmission information that is closest to the reference paging transmission information as the target paging in the paging transmission information of the remote UE. transmit information.
  • the IMSI of the remote UE is a specific IMSI, which is an IMSI of a target UE that the base station needs to perform data interaction.
  • the algorithm for referring to the paging transmission information may refer to the paging transmission information calculation formula provided by the second implementation manner of the second aspect in the above step 202.
  • each paging transmission information in the paging transmission information of the remote UE may be compared with the reference paging transmission information to determine to select a paging transmission information that is closest to the reference paging transmission information as a target.
  • Paging transmission information Since a reference paging transmission information may include PO and PF information, each PF in the paging transmission information of the remote UE is first compared with the PF of the reference paging transmission information to determine the closest at least one PF. And comparing each PO in the paging transmission information where the at least one PF is located with the PO of the reference paging transmission information, determining the closest PO, and determining the paging transmission information of the closest PO as the target paging transmission information. .
  • the paging transmission information of the remote UE includes The first paging transmission information, the second paging transmission information, and the third paging transmission information, wherein the specific information content refers to Table 1, and the PF of the first to third paging transmission information and the reference paging transmission information may be first
  • the PF compares and determines that the PF of the first paging transmission information and the second paging transmission information is equal to the PF of the reference paging transmission information, and of course, is closest, and then transmits the first paging transmission information and the second paging transmission.
  • the PO of the information is compared with the PO of the reference paging transmission information, and the PO of the first paging transmission information is determined to be the closest to the PO of the reference paging transmission information, and the target paging transmission information is the first paging transmission information, and the PF thereof 2, PO is 2, that is, the position indicated by the target paging transmission information is the second subframe of the second radio frame.
  • the base station may also determine target paging transmission information according to a custom rule, and the customized rule is used. Informing the relay UE, or the base station and the relay UE agree on a reference paging transmission information, and selecting, in the paging transmission information of the remote UE, a paging transmission information that is closest to the reference paging transmission information as the target paging transmission. information. This embodiment of the present invention does not describe this.
  • Step y sending the remote UE's homing to the relay UE on the subframe indicated by the target paging transmission information Call the message.
  • the paging message of the remote UE is sent in the second subframe of the second radio frame.
  • Step 204 The relay UE acquires two sets of paging transmission information.
  • the two sets of paging transmission information include paging transmission information of the relay UE and paging transmission information of the remote UE, and the paging transmission information is used to indicate a transmission location of the paging message.
  • the two sets of paging transmission information are the same as the two sets of paging transmission information in step 202 above.
  • the two sets of paging transmission information include paging transmission information of the relay UE and paging transmission information of the remote UE, where the paging transmission information is used to indicate a transmission location of the paging message, the paging
  • the transmission information may include information of PF and PO.
  • the PF is used to indicate a radio frame for sending a paging message, and the PF may include at least one paging moment, the unit is 10 ms, and the PO is used to indicate a subframe in which the paging message is sent, and the unit is 1 ms.
  • the method for the relay UE to acquire two sets of paging transmission information mainly includes the following two aspects:
  • the relay UE acquires paging transmission information of the relay UE.
  • the method for the relay UE to obtain its own paging transmission information may refer to a method for acquiring paging transmission information of a conventional relay UE, for example, the content specified in Chapter 7.1 of the communication standard TS36.304, which may be based on the relay UE.
  • the IMSI calculates the paging transmission information of the relay UE, and can also refer to the following second aspect to obtain the paging transmission information of the remote UE, which is not described in detail in the embodiment of the present invention.
  • the relay UE acquires paging transmission information of the remote UE.
  • the relaying UE can obtain the paging transmission information of the remote UE.
  • the following three implementation manners are used as an example.
  • the relay UE acquires the paging transmission information of the predetermined remote UE.
  • the base station may pre-configure the paging transmission information of the remote UE, and send the information to the relay UE.
  • the base station may use system information, high layer signaling (such as radio resource control signaling, etc.) or physical layer signaling.
  • the relay UE obtains the PCCH paging control channel by using the information carried by the system information module (SIBs) sent by the base station (English: System Information Blocks; SIBs) English: Paging Control Channel; for short: PCCH) basic configuration information, including pre-configured paging transmission information of the remote UE, such as paging control channel configuration in SIB2 (English: Paging Control Channel In the content carried in the information of the -config; abbreviated as: PCCH-config, the paging transmission information of the pre-configured remote UE is determined, and the relay UE saves the paging transmission information of the remote UE and extracts it when needed.
  • SIBs system information module
  • SIBs System Information Blocks
  • PCCH basic configuration information
  • the process of acquiring the paging transmission information of the remote UE by the UE is also the process of extracting the paging transmission information of the remote UE.
  • the paging transmission information of the remote UE may be configured in the relay UE according to the protocol, or may be configured by the network side to the relay UE by other means, or may be configured by manual configuration.
  • the embodiment of the present invention does not limit this, as long as the paging transmission information of the remote UE configured on the base station side is the same.
  • the relay UE calculates paging transmission information of the remote UE according to the pre-configured configuration parameters.
  • the base station may pre-configure the configuration parameter and send the configuration parameter to the relay UE.
  • the network side may send the configuration parameter to the base station by using the system information, the high layer signaling (such as the RRC signaling), or the physical layer signaling, for example, the information carried by the SIBs sent by the relay UE through the base station.
  • the basic configuration information of the PCCH is obtained, and the basic configuration information includes configuration parameters of the remote UE that are configured in advance.
  • the pre-configured configuration parameters may be determined in the content carried in the PCCH-config information in the SIB2.
  • the relay UE saves the configuration parameters and extracts when it is necessary to calculate the paging transmission information of the remote UE.
  • the configuration parameters may include: a paging cycle and a number of paging cycles. It should be noted that the configuration parameter may be configured in the relay UE according to the protocol, or may be configured by the network side to the relay UE by other means, or may be configured to the relay UE by manual configuration. The embodiment of the invention is not limited thereto, as long as the configuration parameters configured on the base station side are the same.
  • the paging transmission information of the remote UE may include multiple paging transmission information.
  • the relay UE may obtain the pre-configured configuration parameter and the configurable IMSI complete set, and calculate the foregoing multiple paging transmission information according to the configuration parameter and the configurable IMSI complete set, where the multiple configuration parameters include: The paging cycle and the number of paging cycles.
  • the calculation process may refer to the process in which the base station calculates a plurality of paging transmission information in the second implementation manner of the second aspect in the foregoing step 202.
  • the calculation manner of the relay UE and the base station is the same to ensure the consistency of the paging message transmission and reception.
  • the relay UE calculates the paging transmission information of the remote UE according to the pre-configured IMSI.
  • the base station may pre-configure the IMSI and send the IMSI to the relay UE.
  • the base station may send the IMSI to the medium by using system information, high layer signaling (such as radio resource control signaling, or physical layer signaling).
  • the UE for example, the relay UE obtains the basic configuration information of the PCCH in the information carried by the SIBs sent by the base station, where the basic configuration information includes the pre-configured IMSI, which may be determined in the content carried in the PCCH-config information in the SIB2.
  • Relay saves the IMSI And extracting when it is necessary to calculate the paging transmission information of the remote UE.
  • the pre-configured IMSI may be configured in the relay UE when the UE is shipped according to the protocol, or may be configured by the network side to the relay UE by other means, or may be configured to the relay UE by manual configuration.
  • the embodiment of the present invention does not limit this, as long as the configuration parameters configured on the base station side are the same.
  • the pre-configured IMSI is usually fixed, which is independent of the IMSI of the relay UE of the individual and the IMSI of the remote UE of the individual, that is, the acquisition of the IMSI is not for a certain one. Relaying the IMSI of the UE and the IMSI of a remote UE.
  • the pre-configured IMSI may be at least one IMSI randomly selected by the network side in the configurable IMSI ensemble, or may be at least one IMSI selected in the configurable IMSI ensemble according to a preset rule, and the pre-configured IMSI may also be configured.
  • the base station After the base station acquires the IMSI and transmits the signal to the relay UE, no matter what manner the base station acquires the pre-configured IMSI, as long as the pre-configured IMSI is transmitted to the relay UE, the UE calculates the same calculation method as the base station. Paging the transmission information.
  • the calculation process of the paging transmission information reference may be made to the process of the base station calculating the plurality of paging transmission information in the third implementation manner of the second aspect in the foregoing step 202, and the calculation manner of the relay UE and the base station is the same to ensure the paging message. Transceiver consistency.
  • Step 205 The relay UE receives the paging message sent by the base station according to the two sets of paging transmission information.
  • the relay UE may receive the paging message sent by the relay UE based on the paging transmission information of the relay UE, for example, the transmission location of the paging message indicated by the paging transmission information is specifically the location of the subframe, The relay UE may receive the paging message sent by the relay UE on the subframe indicated by the paging transmission information of the relay UE. This embodiment of the present invention does not describe this.
  • the remote UE For the remote UE, on the one hand, since the content of the paging transmission information of the remote UE acquired by the base station and the relay UE is the same, whether the base station selects the target paging transmission information in the paging transmission information of the remote UE.
  • the paging message sent by the remote UE is within the range of the transmission location indicated by the paging transmission information of the remote UE, and then the relay UE can listen to all subframes indicated by the paging transmission information of the remote UE to receive A paging message sent by the base station.
  • the interception mode can ensure the effective reception of paging messages.
  • the base station and the relaying UE can reduce the process of configuring the selection mode by signaling, manual configuration or other manners without pre-arranging the selection mode.
  • the base station and the relay UE pre-agreed the selection manner, the base station is at the remote UE.
  • the relay UE also adopts the above-mentioned monitoring mode.
  • the relay UE may select one target paging transmission information in the paging transmission information of the remote UE; and perform monitoring based on the subframe indicated by the target paging transmission information to receive the paging message sent by the base station.
  • the relay UE may select one target paging transmission information in the paging transmission information of the remote UE based on a selection manner agreed in advance with the base station.
  • the relay UE may calculate the reference paging transmission information according to the IMSI of the remote UE, and select, in the paging transmission information of the remote UE, a paging transmission information that is closest to the reference paging transmission information as the target paging. transmit information.
  • the IMSI of the remote UE is a specific IMSI, and is an IMSI of the remote UE to which the relay UE is currently connected.
  • the algorithm for referring to the paging transmission information may refer to the paging transmission information calculation formula provided by the second implementation manner of the second aspect in the above step 202.
  • the second method of the foregoing step 2032 may be used in the embodiment of the present invention. This will not be repeated.
  • the relay UE may also determine the target paging transmission information according to the custom rule of the base station.
  • the definition rule is that the base station informs the relay UE in advance, or the base station and the relay UE agree on a reference paging transmission information, and select a paging closest to the reference paging transmission information in the paging transmission information of the remote UE.
  • the transmission information is transmitted as the target paging information. This embodiment of the present invention does not describe this.
  • the value indicates that, because the paging message carries the UE ID list, if the relay UE detects the paging message at a transmission location, the ID of the self and the ID of the currently connected remote UE may be associated with the The UE ID list is matched. If the ID is matched, the subsequent operation is performed according to the paging message. If the ID of the connected remote UE matches, the paging message is transmitted to the corresponding remote UE, and the current monitoring may be ignored.
  • the transmission location belongs to the transmission location indicated by the paging transmission information of the relay UE or the transmission location indicated by the paging transmission message of the remote UE.
  • the base station may calculate paging transmission information according to the IMSI of the relay UE, and send a paging message to the relay UE based on the paging transmission information, and the relay UE only needs to monitor the paging transmission information.
  • the subframe is forwarded to the remote UE when receiving the paging message for the remote UE.
  • the paging message is transmitted to the remote UE, and the relay UE needs to report the connection state of the relay UE and the remote UE in real time, that is, each connection state change needs to be reported to the base station, so the network signaling overhead is large.
  • the base station obtains two sets of paging transmission information, which are paging transmission information of the relay UE and paging transmission information of the remote UE, respectively, when the base station needs to perform data interaction with the relay UE, Then, the paging message is sent to the relay UE according to the paging transmission information of the relay UE.
  • the base station needs to perform data interaction with the remote UE
  • the paging message transmitted by the remote UE is sent to the relay UE, and the paging message is not needed.
  • the network signaling overhead is reduced.
  • the paging transmission information of the remote UE is independent of the remote UE of the individual, and is not calculated for a remote UE, and may be regarded as a generalized concept, which is directed to a
  • the far-end UE that is, the paging transmission information of the remote UE is for all the remote UEs served by the base station, or the paging transmission information of the remote UE is for all the remote UEs under the same TAC.
  • the paging transmission information of the remote UE is for all remote UEs in the same communication system.
  • FIG. 2-3 is a schematic structural diagram of a communication system in which a relay UE 121, a relay UE 123, and a relay UE 125 both establish a wireless connection with the base station 11 and relay the UE 121.
  • the lower end is associated with a remote UE 122, the relay UE 123 is cascaded with a remote UE 124, and the relay UE 125 is cascaded with a remote UE 126.
  • the relay UE 121, the relay UE 123, and the relay UE 125 can obtain two sets of paging transmission information, one is paging transmission information for itself, and the other is paging transmission information for the remote UE, and the three are acquired.
  • the paging transmission information may be different for the self, and the obtaining method may refer to the traditional technology, and the paging transmission information obtained by the three for the remote UE may be the same.
  • the paging transmission information is obtained by using the first to third implementation manners of the second aspect in the foregoing step 202, because the paging transmission information of the remote UE is predetermined, or the configuration parameter is predetermined, or the IMSI It is pre-configured, and these configurations can be set by the network side, such as the core network, for the base station and the relay UE. Therefore, the three can calculate the paging transmission information of the same remote UE based on the pre-configured content.
  • the paging transmission information of the remote UE includes multiple paging transmission information, it is equivalent to each relay UE being able to acquire multiple transmission locations, and each UE may monitor the multiple transmission locations, or may be based on The set rules have a selective listener. In either case, the relay UE does not need to report the connection status with the remote UE to the base station.
  • the base station may also calculate paging transmission information according to the IMSI of the remote UE to which it is connected, and send a paging message to the relay UE based on the paging transmission information.
  • the relay UE needs to listen to the PO and PF including the relay UE itself and the remote UE to obtain paging messages of both.
  • Figure 2-4 is a schematic diagram of a communication system in which a relay UE 121 and a base station 11 are connected to each other, and a relay UE 121 is connected to a remote UE 122. End UE 128 and remote UE 129. If the current FeD2D communication technology is adopted, the relay UE 121 needs to calculate paging transmission information for the remote UE 122, the remote UE 128, and the remote UE 129 to obtain three paging transmission information, and based on the three paging transmission information and its own The paging transmission information has a total of 4 paging transmission information for monitoring the paging message.
  • the relay UE 121 only needs to obtain two sets of paging transmission information, wherein the range of paging transmission information of the remote UE is fixed, that is, the remote UE 122, the remote UE 128, and the remote end
  • the paging transmission information of a group of remote UEs corresponding to the UE 129 is the same, and the relay UE 121 only needs to listen to one or more transmission locations indicated by the paging transmission information of the group of remote UEs, and its own paging.
  • the transmission location indicated by the transmission information is sufficient.
  • the relay UE when there are many remote UEs cascaded under the relay UE 121, for example, when there are hundreds or thousands of remote UEs, in the current FeD2D communication technology, the relay UE needs to listen to hundreds or thousands of transmission locations, and consumes power. In the embodiment of the present invention, the relay UE only needs to monitor one or more transmission locations indicated by the obtained paging transmission information of the remote UE, and the transmission location indicated by the paging transmission information of the UE is Yes, it can effectively reduce power consumption.
  • the base station acquires two sets of paging transmission information, which are paging transmission information of the relay UE and paging transmission information of the remote UE, respectively, when the base station needs and relays
  • the UE performs a data exchange, and sends a paging message to the relay UE based on the paging transmission information of the relay UE.
  • the paging transmission information based on the remote UE is sent to the relay UE.
  • the paging message does not need to consider the connection status of the relay UE and the remote UE, and the relay UE only needs to receive the paging message sent by the base station based on the two sets of paging transmission information, without considering how many remote UEs are connected by itself. Therefore, the network signaling overhead is reduced, and the power consumption of the relay UE is also reduced.
  • FIG. 3-1 is a block diagram of a message transmission apparatus 30, which is applied to a base station. As shown in FIG. 3-1, the apparatus 30 includes:
  • the obtaining module 301 is configured to obtain two sets of paging transmission information, where the two sets of paging transmission information includes a paging transmission information of the UE and a paging transmission information of the remote UE, where the paging transmission information is used to indicate a transmission location of the paging message, and the relay UE is the base station and the remote UE Relay device
  • the sending module 302 is configured to send a paging message to the relay UE based on the two sets of paging transmission information.
  • FIG. 3-2 is a block diagram of a sending module according to an exemplary embodiment.
  • the sending module 302 may include:
  • the information acquisition sub-module 3021 is configured to determine paging transmission information of the target UE in the two sets of paging transmission information, where the target UE includes the relay UE and/or the remote UE;
  • the sending submodule 3022 is configured to send a paging message to the relay UE based on paging transmission information of the target UE.
  • the paging transmission information of the remote UE includes multiple paging transmission information
  • the sending submodule 3022 may include:
  • selecting a submodule configured to: when the target UE includes a remote UE, select one target paging transmission information in paging transmission information of the remote UE;
  • a message sending submodule configured to send, by using the subframe indicated by the target paging transmission information, a paging message of the remote UE to the relay UE.
  • the selecting submodule can be used to:
  • the selecting submodule may be specifically configured to:
  • a paging transmission information is randomly selected as the target paging transmission information in the paging transmission information of the remote UE.
  • the selection submodule may be specifically used to:
  • the obtaining module 301 is specifically configured to:
  • the paging transmission information of the remote UE is calculated according to the pre-configured international mobile subscriber identity IMSI.
  • the obtaining module 301 is configured to:
  • the relay UE After receiving the transmission mode change signaling sent by the relay UE, acquiring the two sets of paging transmission information, where the transmission mode change signaling is sent after the relay UE establishes a connection with the remote UE.
  • the paging transmission information includes: a paging moment and a paging frame information.
  • the base station acquires two sets of paging transmission information, which are paging transmission information of the relay UE and paging transmission information of the remote UE, respectively, when the base station needs and relays
  • the UE performs a data exchange, and sends a paging message to the relay UE based on the paging transmission information of the relay UE.
  • the paging transmission information based on the remote UE is sent to the relay UE.
  • the paging message does not need to consider the connection status of the relay UE and the remote UE, and the relay UE only needs to receive the paging message sent by the base station based on the two sets of paging transmission information, without considering how many remote UEs are connected by itself. Therefore, the network signaling overhead is reduced, and the power consumption of the relay UE is also reduced.
  • FIG. 4-1 is a block diagram of a message transmission apparatus 40, which is applied to a relay user equipment UE, as shown in FIG. 4-1.
  • the apparatus 40 includes:
  • the obtaining module 401 is configured to obtain two sets of paging transmission information, where the two sets of paging transmission information include paging transmission information of the relay user equipment UE and paging transmission information of the remote UE, where the paging transmission information is used. And indicating, in the transmission location of the paging message, the relay UE is a relay device between the base station and the remote UE;
  • the receiving module 402 is configured to receive, according to the two sets of paging transmission information, a paging message sent by the base station.
  • the receiving module 402 is configured to:
  • FIG. 4-2 is a block diagram of a receiving module, as shown in FIG. 4-2, according to an exemplary embodiment.
  • the receiving module 402 includes:
  • the selecting submodule 4021 is configured to select one target paging transmission information in the paging transmission information of the remote UE;
  • the monitoring sub-module 4022 is configured to perform monitoring according to the subframe indicated by the target paging transmission information. Receiving a paging message sent by the base station.
  • the selecting submodule 4021 can be used to:
  • the selecting submodule 4021 can be specifically configured to:
  • the obtaining module 401 is configured to:
  • the paging transmission information of the remote UE is calculated according to the pre-configured international mobile subscriber identity IMSI.
  • FIG. 4-3 is a block diagram of another message transmission apparatus according to an exemplary embodiment, the apparatus 40 further includes:
  • the signaling transmission module 403 is configured to send the transmission mode change signaling to the base station after the relay UE establishes a connection with the remote UE before acquiring the two sets of paging transmission information.
  • the paging transmission information includes: a paging moment and a paging frame information.
  • the relay UE acquires two sets of paging transmission information, which are paging transmission information of the relay UE and paging transmission information of the remote UE, and may be based on the relay.
  • the paging transmission information of the UE receives the paging message sent by the base station, and receives the paging message sent by the base station based on the paging transmission information of the remote UE, without considering the connection status of the relay UE and the remote UE, and the relay UE only needs to Receiving the paging message sent by the base station based on the two sets of paging transmission information does not need to consider how many remote UEs are connected by itself, thereby reducing the network signaling overhead and reducing the power consumption of the relay UE.
  • the embodiment of the present invention provides a message transmission system 50, as shown in FIG. 5, including: a relay UE 501, a remote UE 502, and a base station 503, and the relay UE 501 may include the message transmission device 40 shown in Figure 3-1.
  • the base station 503 can include the message transmission device 50 shown in Figures 4-1 or 4-3.
  • FIG. 6 illustrates a message transmission apparatus 60 according to an exemplary embodiment of the present invention.
  • the message transmission device 60 may be the relay UE 501 or the base station 503, and the message transmission device 60 includes a processor 62 and a network interface 64.
  • Processor 62 includes one or more processing cores.
  • the processor 62 executes various functional applications and data processing by running software programs and modules.
  • the message transmission device 60 further includes components such as a memory 66, a bus 68, and the like.
  • the memory 66 and the network interface 64 are connected to the processor 62 via a bus 68, respectively.
  • Memory 66 can be used to store software programs as well as modules. Specifically, the memory 66 can store an operating system 662, an application module 664 required for at least one function.
  • the operating system 662 can be an operating system such as Real Time eXecutive (RTX), LINUX, UNIX, WINDOWS, or OS X.
  • the network interface 64 can be a transceiver antenna (which can also be regarded as a transmitter and a receiver), and the application module 664 stored in the memory 66 can perform the above steps 202 and steps. 203 and other steps;
  • the network interface 64 may be a transceiver antenna (which may also be regarded as a transmitter and a receiver), and the application module 664 stored in the memory 66 may perform the above steps 201, 204, 205, etc. step;
  • embodiments of the present invention also provide a non-transitory computer readable storage medium including instructions, such as a memory 66 including instructions executable by processor 62 of message transmission device 60 to accomplish the above. Lighting control method.
  • the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
  • the completion of the hardware may also be performed by a program to instruct related hardware.
  • the program may be stored in a computer readable storage medium.
  • the storage medium mentioned above may be a read only memory, a magnetic disk or an optical disk.

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Abstract

本申请提供了一种消息传输方法、装置及系统，涉及通信技术应用领域，所述方法包括：获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，中继UE为所述基站与所述远端UE之间的中继设备；基于所述两组寻呼传输信息向中继UE发送寻呼消息。本申请能够减小了网络信令开销。本申请用于移动通信系统中寻呼消息的传输。

Description

消息传输方法、装置及系统 技术领域
本公开涉及通信技术应用领域，特别涉及一种消息传输方法、装置及系统。
背景技术
设备到设备(英文：Device-to-Device；简称：D2D)通信技术是指两个对等的用户设备(英文：User Equipment；简称：用户设备)之间直接进行通信的一种通信方式。进一步增强的设备到设备(英文：Further enhance Device-to-Device；简称：FeD2D)通信技术是基于D2D通信技术的改进技术，在FeD2D通信技术中，中继(英文：relay)UE作为远端(英文：remote)UE与基站之间的中继设备，能够进行远端UE与基站之间的数据转发，且基站保存有中继UE和远端UE的UE上下文(英文：context)。
当UE处于空闲态，而网络侧需要和UE进行数据交互时，基站会通过寻呼消息(英文：paging)来告知UE。在目前的FeD2D通信技术中，基站会按照中继UE的IMSI，计算寻呼传输信息，该寻呼传输信息包括：寻呼时刻(英文：Paging Occasion；简称：PO)和寻呼帧(英文：Paging Frame；简称：PF)的信息，并基于该寻呼传输信息向中继UE发送寻呼消息。
但是目前的FeD2D通信技术中，基站需要与远端UE进行数据交互，若按照中继UE的IMSI计算寻呼传输信息，基站需要通过信令实时获取中继UE和远端UE的连接状态，以保证中继UE在获取到该寻呼消息后能传输给远端UE，而较多的信令会导致网络信令开销较大。
发明内容
为了解决目前的网络信令开销较大的问题，本发明提供了一种消息传输方法、装置及系统。所述技术方案如下：
第一方面，提供一种消息传输方法应用于基站，所述方法包括：
获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消 息的传输位置，中继UE为所述基站与所述远端UE之间的中继设备；
基于所述两组寻呼传输信息向中继UE发送寻呼消息。
可选的，所述基于所述两组寻呼传输信息向中继UE发送寻呼消息，包括：
在所述两组寻呼传输信息中确定目标UE的寻呼传输信息，所述目标UE包括所述中继UE和/或所述远端UE；
基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息。
可选的，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
所述基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息，包括：
当所述目标UE包括远端UE时，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
在所述目标寻呼传输信息指示的子帧上向所述中继UE发送所述远端UE的寻呼消息。
可选的，所述在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
可选的，所述基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
在所述远端UE的寻呼传输信息中随机选择一个寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
根据所述远端UE的IMSI计算得到参考寻呼传输信息；
在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述获取两组寻呼传输信息，包括：
获取预先确定的所述远端UE的寻呼传输信息；
或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
可选的，所述获取两组寻呼传输信息，包括：
在接收到所述中继UE发送的传输模式变更信令之后，获取所述两组寻呼传输信息，所述传输模式变更信令是所述中继UE与远端UE建立连接后发送的。
可选的，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
第二方面，提供一种消息传输方法，应用于中继用户设备UE，所述方法包括：
获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，所述中继UE为基站与所述远端UE之间的中继设备；
基于所述两组寻呼传输信息接收所述基站发送的寻呼消息。
可选的，所述基于所述两组寻呼传输信息接收所述基站发送的寻呼消息，包括：
对所述两组寻呼传输信息指示的所有子帧进行监听，以接收所述基站发送的寻呼消息。
可选的，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
所述基于所述两组寻呼传输信息接收所述基站发送的寻呼消息，包括：
在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
基于所述目标寻呼传输信息指示的子帧进行监听，以接收所述基站发送的寻呼消息。
可选的，所述在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
可选的，所述基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
根据所述远端UE的IMSI计算得到参考寻呼传输信息；
在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述获取两组寻呼传输信息，包括：
获取预先确定的所述远端UE的寻呼传输信息；
或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
可选的，在所述获取两组寻呼传输信息之前，所述方法还包括：
在所述中继UE与所述远端UE建立连接后，向基站发送传输模式变更信令。
可选的，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
第三方面，提供一种消息传输装置，应用于基站，所述装置包括：
获取模块，用于获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，中继UE为所述基站与所述远端UE之间的中继设备；
发送模块，用于基于所述两组寻呼传输信息向中继UE发送寻呼消息。
可选的，所述发送模块，包括：
信息获取子模块，用于在所述两组寻呼传输信息中确定目标UE的寻呼传输信息，所述目标UE包括所述中继UE和/或所述远端UE；
发送子模块，用于基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息。
可选的，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
所述发送子模块，包括：
选择子模块，用于当所述目标UE包括远端UE时，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
消息发送子模块，用于在所述目标寻呼传输信息指示的子帧上向所述中继UE发送所述远端UE的寻呼消息。
可选的，所述选择子模块，用于：
基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
可选的，所述选择子模块，具体用于：
在所述远端UE的寻呼传输信息中随机选择一个寻呼传输信息作为所述目 标寻呼传输信息。
可选的，所述选择子模块，具体用于：
根据所述远端UE的IMSI计算得到参考寻呼传输信息；
在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述获取模块，用于：
获取预先确定的所述远端UE的寻呼传输信息；
或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
可选的，所述获取模块，用于：
在接收到所述中继UE发送的传输模式变更信令之后，获取所述两组寻呼传输信息，所述传输模式变更信令是所述中继UE与远端UE建立连接后发送的。
可选的，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
第四方面，提供一种消息传输装置，应用于中继用户设备UE，所述装置包括：
获取模块，用于获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，所述中继UE为基站与所述远端UE之间的中继设备；
接收模块，用于基于所述两组寻呼传输信息接收所述基站发送的寻呼消息。
可选的，所述接收模块，用于：
对所述两组寻呼传输信息指示的所有子帧进行监听，以接收所述基站发送的寻呼消息。
可选的，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
所述接收模块，包括：
选择子模块，用于在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
监听子模块，用于基于所述目标寻呼传输信息指示的子帧进行监听，以接 收所述基站发送的寻呼消息。
可选的，所述选择子模块，用于：
基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
可选的，所述选择子模块，具体用于：
根据所述远端UE的IMSI计算得到参考寻呼传输信息；
在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述获取模块，用于：
获取预先确定的所述远端UE的寻呼传输信息；
或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
可选的，所述装置还包括：
信令传输模块，用于在所述获取两组寻呼传输信息之前，在所述中继UE与所述远端UE建立连接后，向基站发送传输模式变更信令。
可选的，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
第五方面，提供一种消息传输系统，包括：中继UE、远端UE和基站，所述基站包括第三方面任一所述的消息传输装置，所述中继UE包括第四方面任一所述的消息传输装置。
本发明实施例提供的消息传输方法、装置及系统，基站获取两组寻呼传输信息，分别是中继UE的寻呼传输信息和远端UE的寻呼传输信息，当基站需要与中继UE进行数据交互，则基于中继UE的寻呼传输信息向中继UE发送寻呼消息，当基站需要与远端UE进行数据交互，则基于远端UE的寻呼传输信息向中继UE发送寻呼消息，无需考虑中继UE和远端UE的连接状态，且中继UE只需基于该两组寻呼传输信息接收基站发送的寻呼消息，无需考虑自身连接了多少个远端UE，因此减小了网络信令开销，也减少了中继UE的耗电量。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所 需要使用的附图作简单地介绍，显而易见地，下面描述中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是本发明部分实施例中提供的消息传输方法所涉及的实施环境的示意图；
图2-1是本发明实施例提供的一种消息传输方法的方法流程示意图；
图2-2是本发明实施例提供的一种基于两组寻呼传输信息向中继UE发送寻呼消息的方法流程示意图；
图2-3是本发明实施例提供的一种通信系统的架构示意图；
图2-4是本发明实施例提供的另一种通信系统的架构示意图；
图3-1是根据一示例性实施例示出的一种消息传输装置的框图；
图3-2是根据一示例性实施例示出的一种发送模块的框图；
图4-1是根据一示例性实施例示出的一种消息传输装置的框图；
图4-2是根据一示例性实施例示出的一种接收模块的框图；
图4-3是根据一示例性实施例示出的另一种消息传输装置的框图。
图5是本发明实施例提供的一种消息传输系统的框图；
图6是本发明实施例提供的一种消息传输装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
请参见图1，其示出了本公开实施例提供的消息传输方法所涉及的实施环境的示意图。该实施环境可以包括：基站11和多个UE12。该多个UE12包括中继UE121和远端基站122，中继UE121与基站11直连，且能够实现基站11和远端基站122之间信息的中转。
在5G系统中，该基站11可以为下一代基站(英文：generation Node B；简称：gNB)，在LTE系统中，该基站11可以为演进型基站(英文：evolvedNode B；简称：eNB)，该UE12可以为智能手机、电脑、多媒体播放器、电子阅读器或可穿戴式设备等。基站11和中继UE121之间可以通过无线网络建立连接，中继UE121和远端UE122之间可以通过无线网络建立连接。通常，基站11和远端UE122之间可以有两种状态：Uu直连状态和PC5(PC5 的概念出自通信标准TS23.303)中继状态，其中，Uu直连状态指的是基站11和远端UE122的Uu接口建立无线资源控制(英文：Radio Resource Control；简称：RRC)连接的状态，此时无需中继UE121进行数据中转；PC5中继状态是指基站11和远端UE122通过中继UE121进行数据传输的状态。例如，远端UE122可以是智能手表，中继UE121可以是智能手机，智能手表与智能手机可以建立蓝牙连接，通过智能手机传输智能手表与基站之间的数据。又例如，远端UE122可以是第一智能手机，中继UE121可以是第二智能手机，当第一智能手机可以与基站建立RRC连接，也可以以第二智能手机建立无线热点，通过第二智能手机传输第一智能手机与基站之间的数据。需要说明的是，实际应用中，有些基站11和远端UE122之间可能只存在PC5中继状态，也即是远端122无法和基站11实现RRC连接。例如，一些智能手表无法和基站实现RRC连接。
在通信系统中，当UE处于空闲态，而网络侧需要和UE进行数据交互时，基站会通过寻呼消息来告知UE。此时，UE只有监听到寻呼消息才能进行后续响应。网络侧，如核心网，管理了多个跟踪区(英文：TrackingArea；简称：TAC)，每个TAC内有多个基站，网络侧会将寻呼消息发给同一个TAC下面的基站，由基站通过寻呼控制信道(英文：Paging Control Channel；简称：PCCH)下发给UE。该寻呼消息通常携带有UE身份标识(英文：identification；简称：ID)列表，UE收到的寻呼消息中如果带有UE ID列表，UE可以用自己的UE ID来跟寻呼消息中携带的UE ID进行匹配，以判断此寻呼消息是否是在呼叫自己。
在寻呼消息中如果寻呼ID是临时移动用户识别(英文：S-Temporary Mobile Subscriber Identity；简称：S-TMSI)，则表示本次寻呼是一个正常的业务呼叫，其中S为系统架构演进(英文：SystemArchitecture Evolution；简称：SAE)的简称；如果寻呼ID是国际移动用户识别码(英文：International Mobile Subscriber Identity；简称：IMSI)，则表示本次寻呼是一次异常的呼叫，用于网络侧的错误恢复，此种情况下UE需要重新做一次附着(英文：Attach)过程。需要说明的是，上述S-TMSI是全球唯一临时UE标识(英文：GloballyUnique Temporary UE Identity；简称：GUTI)的一种缩短格式，以保证能够对无线信令进行更有效的处理(如寻呼及服务请求)。IMSI是区别UE的标志，通常其总长度不超过15位，使用0～9的数字排列得到。IMSI中包括移动国家码(英 文：Mobile Country Code；简称：MCC)，该MCC是移动UE所属国家代号，通常占3位数字，中国的MCC规定为460；移动网络号码(英文：Mobile Network Code；简称：MNC)是移动网号码，由两位或者三位数字组成，用于识别移动UE所归属的移动通信网，例如中国移动的MNC为00；移动用户的识别号码(英文：Mobile Subscriber Identification Number；简称：MSIN)用以识别某一移动通信网中的移动用户。
目前的通信系统，提出了非连续接收(英文：Discontinuous Reception；简称：DRX)技术，在该DRX技术中，定义一DRX周期，UE在一个DRX周期内，可以只在相应的寻呼帧(即PF)上的寻呼时刻(PO)先去监听物理下行控制信道(英文：Physical Downlink Control Channel；简称：PDCCH)上是否携带有寻呼消息-无线网络临时标识(英文：Paging-Radio NetworkTempory Identity；简称：P-RNTI)，进而去判断相应的物理下行共享信道(英文：Physical Downlink Shared Channel；简称：PDSCH)上是否承载有寻呼消息。如果在PDCCH上携带有P-RNTI，就按照PDCCH上指示的PDSCH的参数去接收PDSCH上的数据；如果UE在PDCCH上未解析出P-RNTI，则无需再去接收PDSCH物理信道，就可以依照DRX周期进入休眠。利用这种机制，在一个DRX周期内，UE可以只在PO出现的时间位置上去接收PDCCH，然后再根据需要去接收PDSCH。而在其它时间可以睡眠，以达到省电的目的。本发明实施例即应用于该场景下。
本发明实施例提供的消息传输方法，应用于上述寻呼消息传输的场景，具体的，如图2-1所示，该消息传输方法包括：
步骤201、中继UE在中继UE与远端UE建立连接后，向基站发送传输模式变更信令。
在一些场景中，远端UE可以直接与基站建立RRC连接也可以通过中继UE与基站建立连接，例如远端UE为智能手机或笔记本电脑的场景，当远端UE的连接状态从Uu直连状态切换到PC5中继状态，其传输模式产生了变更，即从直接传输变成了间接传输，在另一些场景中，远端UE不能与基站建立RRC连接但可以通过中继UE与基站建立连接，例如远端UE为智能手表或智能手环的场景，当远端UE的连接状态从不与中继UE连接的状态切换为与中继连接的状态时，其传输模式产生了变更，即从不可传输变成了可传输。
在中继UE与远端UE建立连接后，其可以向基站发送传输模式变更信令，该传输模式变更信令的发送时机可以有多种，例如，中继UE可以在与远端UE的连接建立完成后的预设时长(如2ms)内，主动发送该传输模式变更信令，或者，在与远端UE的连接建立完成后的预设时长内，在远端UE的触发下被动发送该传输模式变更信令；又例如，中继UE可以在与远端UE的连接建立完成后，在确定远端UE需要进行数据传输时，发送该传输模式变更信令。一方面，远端UE需要进行数据传输时，可以先向中继UE发送数据传输触发指令，中继UE根据该数据传输触发指令向基站发送传输模式变更信令；另一方面，远端UE需要进行数据传输时，也可以直接向中继UE发送需要传输的数据，中继UE根据该数据向基站发送传输模式变更信令，或者直接向基站发送传输模式变更信令，并在该信令中携带需要传输的数据。
步骤202、基站在接收到中继UE发送的传输模式变更信令之后，获取两组寻呼传输信息。
基站在接收到中继UE发送的传输模式变更信令之后，可以基于中继UE发送的传输模式变更信令确定中继UE下级联了远端UE，通常该模式传输变更信令中包括远端UE的标识(例如远端UE的IMSI)，基于此，基站还可以确定中继UE具体连接哪个远端UE。相应的，基站可以获取两组寻呼传输信息，以备后续发送寻呼消息时使用。
在本发明实施例中，两组寻呼传输信息包括中继UE的寻呼传输信息和远端UE的寻呼传输信息，寻呼传输信息用于指示寻呼消息的传输位置，该传输位置为一时间位置，该寻呼传输信息可以包括：PF和PO的信息。其中，PF用于指示发送寻呼消息的无线帧，该PF可以包括至少一个寻呼时刻，其单位为10ms(中文：毫秒)，PO用于指示发送寻呼消息的子帧，其单位为1ms。
其中，基站获取两组寻呼传输信息的方法主要包括以下两方面：
第一方面，基站获取中继UE的寻呼传输信息。
基站获取中继UE的寻呼传输信息的方法可以参考传统的中继UE的寻呼传输信息的获取方法，例如通信标准TS36.304中第7.1章所规定的内容，可以基于该中继UE的IMSI计算中继UE的寻呼传输信息，也可以参考以下第二方面获取远端UE的寻呼传输信息的方法，本发明实施例对此不做赘述。
第二方面，基站获取远端UE的寻呼传输信息。
基站获取远端UE的寻呼传输信息可以有多种可实现方式，本发明实施例 以以下三种可实现方式为例进行说明。
第一种可实现方式，基站获取预先确定的远端UE的寻呼传输信息。
可选的，网络侧的管理设备，可以预先配置远端UE的寻呼传输信息，并发送给基站，如，基站所在系统为LTE系统时，上述管理设备为核心网中的移动管理节点(英文：Mobility Management Entity；简称：MME)。具体的，网络侧可以通过高层信令或单独配置的信令将远端UE的寻呼传输信息发送给基站，基站将该远端UE的寻呼传输信息保存并在需要使用时提取。基站获取预先确定的远端UE的寻呼传输信息的过程也即是提取该远端UE的寻呼传输信息的过程。需要说明的是，上述远端UE的寻呼传输信息也可以根据协议在通信系统组网时配置在基站中。
可选的，基站可以预先计算远端UE的寻呼传输信息，并将寻呼传输信息保存并在需要使用时提取。基站获取预先确定的远端UE的寻呼传输信息的过程也即是提取该远端UE的寻呼传输信息的过程。
第二种可实现方式，基站根据预先配置的配置参数计算得到远端UE的寻呼传输信息。
可选的，网络侧的管理设备，可以预先配置该配置参数，并发送给基站，如，基站所在系统为LTE系统时，上述管理设备为MME。具体的，网络侧可以通过高层信令或单独配置的信令将该配置参数发送给基站，基站将该配置参数保存并在需要计算远端UE的寻呼传输信息时提取。需要说明的是，配置参数可以包括：寻呼周期(英文：Paging Cycle)以及寻呼周期数量(简称：nB)。需要说明的是，上述配置参数也可以在通信系统组网时配置在基站中。
在本发明实施例中，远端UE的寻呼传输信息可以包括多个寻呼传输信息。可选的，基站可以获取预先配置的配置参数和可配置的IMSI的全集，根据配置参数和可配置的IMSI的全集分别计算得到上述多个寻呼传输信息，该多个配置参数包括：寻呼周期以及寻呼周期数量。
上述多个寻呼传输信息可以满足如下寻呼传输信息计算公式：
SFN mod T＝(T div N)*(UE_ID modN)；
i_s＝floor(UE_ID/N)modNs；
其中，SFN mod T为寻呼时刻，T为寻呼周期的时长，N表示一个寻呼周期中无线帧的个数，“div”表示相除，则T div N表示T/N，UE_ID表示配置的IMSI求余1024的结果，“mod”表示求余运算，则UE_ID modN表示求 UE_ID除以N之后的余数；i_s为寻呼帧，Ns为一个无线帧中用于传输寻呼消息的子帧个数。
其中，可配置的IMSI的全集指的是该UE能够配置的所有IMSI，例如，该UE可以分配的IMSI有1024个，分别为10000000-10001023，则该可配置的IMSI的全集为10000000-10001023，需要说明的是，上述IMSI只是示意性举例，实际上的IMSI通常由11-15位十进制数组成。可选的，该寻呼周期为256个无线帧(英文：radio frame)的时长，其为最大寻呼周期，该寻呼周期数量为寻呼周期的时长的1/16，其为寻呼周期数量的最小值。将上述1024个IMSI、寻呼周期以及寻呼周期数量带入上述寻呼传输信息计算公式，可以得到1024个PO和PF，采用该算法计算得到的虽然会计算得到多个寻呼传输信息，但由于寻呼传输信息的时间间隔较长，也即是PO出现的频率较低，可以有效降低中继UE监听寻呼消息的能耗。
第三种可实现方式，基站根据预先配置的IMSI计算得到远端UE的寻呼传输信息。
可选的，网络侧的管理设备，可以预先配置IMSI，并发送给基站，如，基站所在系统为LTE系统时，上述管理设备为MME。具体的，网络侧可以通过高层信令或单独配置的信令将该IMSI发送给基站，基站将该IMSI保存并在需要计算远端UE的寻呼传输信息时提取。需要说明的是，上述IMSI也可以在通信系统组网时配置在基站中。
在本发明实施例中，该预先配置的IMSI通常是固定不变的，其独立于个体的中继UE的IMSI和个体的远端UE的IMSI，也即是该IMSI的获取是不针对某一个中继UE的IMSI和某一个远端UE的IMSI的。预先配置的IMSI可以是网络侧在可配置的IMSI的全集中随机选择的至少一个IMSI，也可以是根据预设规则在可配置的IMSI的全集中选择的至少一个IMSI，预先配置的IMSI还可以是网络侧先在可配置的IMSI的全集中选择的多个备选IMSI，再由基站随机选择或者按照预设规则在该多个备选IMSI选择的至少一个IMSI。
计算得到上述多个寻呼传输信息的过程可以参考上述第二种可实现方式，也即是将预先配置的IMSI带入上述寻呼传输信息计算公式，即可获取PO和PF。因此，本发明实施例对此不再赘述。
步骤203、基站基于两组寻呼传输信息向中继UE发送寻呼消息。
在本发明实施例中，如图2-2所示，基于两组寻呼传输信息向中继UE发 送寻呼消息，可以包括：
步骤2031、基站在两组寻呼传输信息中确定目标UE的寻呼传输信息，该目标UE包括中继UE和/或远端UE。
实际应用中，基站需要根据具体的场景来确定目标UE，进而进行寻呼传输信息的确定，以基于确定的寻呼传输信息来进行寻呼消息的传输。例如，网络侧需要和中继UE进行数据交互时，将中继UE确定为目标UE，则将该中继UE的寻呼传输信息确定为目标UE的寻呼传输信息；网络侧需要和远端UE进行数据交互时，将远端UE确定为目标UE，则将该远端UE的寻呼传输信息确定为目标UE的寻呼传输信息；网络侧需要和中继UE和远端UE均进行数据交互时，将中继UE和远端UE均确定为目标UE，则将该中继UE的寻呼传输信息以及该远端UE的寻呼传输信息确定为目标UE的寻呼传输信息。相应的，寻呼消息中可以带有UE ID列表，该UE ID列表中可以包括上述目标UE的ID。
步骤2032、基站基于目标UE的寻呼传输信息向中继UE发送寻呼消息。
当目标UE包括中继UE时，基站可以基于中继UE的寻呼传输信息向中继UE发送寻呼消息，例如该寻呼传输信息指示的寻呼消息的传输位置具体为子帧的位置，则基站可以在该中继UE的寻呼传输信息所指示的子帧上向中继UE发送寻呼消息。本发明实施例对此不做赘述。
当目标UE包括远端UE时，基站可以基于远端UE的寻呼传输信息向中继UE发送寻呼消息，当远端UE的寻呼传输信息包括一个寻呼传输信息时，即在该寻呼传输信息所指示的子帧上向中继UE发送寻呼消息。
当远端UE的寻呼传输信息包括多个寻呼传输信息，基于目标UE的寻呼传输信息向中继UE发送寻呼消息的过程具体包括以下步骤：
步骤x、基站在远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
示例的，基站可以基于与中继UE预先约定的选择方式，在远端UE的寻呼传输信息中选择一个目标寻呼传输信息。具体过程如下：
第一种方式，基站在远端UE的寻呼传输信息中随机选择一个寻呼传输信息作为目标寻呼传输信息。
第二种方式，基站可以根据远端UE的IMSI计算得到参考寻呼传输信息；在远端UE的寻呼传输信息中选择一个与参考寻呼传输信息最接近的寻呼传输信息作为目标寻呼传输信息。
上述远端UE的IMSI为一特定的IMSI，是基站需要进行数据交互的目标UE的IMSI。该参考寻呼传输信息的算法可以参考上述步骤202中第二方面的第二种可实现方式所提供的寻呼传输信息计算公式。
可选的，可以依次将远端UE的寻呼传输信息中的各个寻呼传输信息与参考寻呼传输信息进行比较，以确定选择一个与参考寻呼传输信息最接近的寻呼传输信息作为目标寻呼传输信息。由于一个参考寻呼传输信息可以包括PO和PF的信息，因此，通常先将远端UE的寻呼传输信息中各个PF与参考寻呼传输信息的PF进行比较，确定最接近的至少一个PF，再将该至少一个PF所在的寻呼传输信息中各个PO与参考寻呼传输信息的PO进行比较，确定最接近的PO，将该最接近的PO所在寻呼传输信息确定为目标寻呼传输信息。
例如，假设参考寻呼传输信息如表1所示，其PF为1，也即是第一个无线帧，其PO为2，也即是第2个子帧；远端UE的寻呼传输信息包括第一寻呼传输信息、第二寻呼传输信息和第三寻呼传输信息，其具体信息内容参考表1，可以先将第一至第三寻呼传输信息的PF与参考寻呼传输信息的PF来比较，确定了第一寻呼传输信息和第二寻呼传输信息的PF与参考寻呼传输信息的PF相等，当然也最接近，再将第一寻呼传输信息和第二寻呼传输信息的PO与参考寻呼传输信息的PO来比较，确定第一寻呼传输信息的PO与参考寻呼传输信息的PO最接近，则目标寻呼传输信息为第一寻呼传输信息，其PF为2，PO为2，也即是目标寻呼传输信息指示的位置为第二个无线帧的第二个子帧。
表1
寻呼传输信息 PF PO
参考寻呼传输信息 2 1
第一寻呼传输信息 2 2
第二寻呼传输信息 2 4
第三寻呼传输信息 3 3
需要说明的是，上述目标寻呼传输信息的确定方式只是示意性说明，实际应用中还可以有多种方式，例如基站还可以根据自定义规则确定目标寻呼传输信息，并将该自定义规则告知中继UE，或者，基站和中继UE约定一参考寻呼传输信息，在远端UE的寻呼传输信息中选择一个与参考寻呼传输信息最接近的寻呼传输信息作为目标寻呼传输信息。本发明实施例对此不做赘述。
步骤y、在目标寻呼传输信息指示的子帧上向中继UE发送远端UE的寻 呼消息。
例如，目标寻呼传输信息中PF为2，PO为2，则在第二个无线帧的第二个子帧上发送该远端UE的寻呼消息。
步骤204、中继UE获取两组寻呼传输信息。
该两组寻呼传输信息包括中继UE的寻呼传输信息和远端UE的寻呼传输信息，该寻呼传输信息用于指示寻呼消息的传输位置。该两组寻呼传输信息与上述步骤202中的两组寻呼传输信息相同。
在本发明实施例中，两组寻呼传输信息包括中继UE的寻呼传输信息和远端UE的寻呼传输信息，该寻呼传输信息用于指示寻呼消息的传输位置，该寻呼传输信息可以包括：PF和PO的信息。其中，PF用于指示发送寻呼消息的无线帧，该PF可以包括至少一个寻呼时刻，其单位为10ms，PO用于指示发送寻呼消息的子帧，其单位为1ms。
其中，中继UE获取两组寻呼传输信息的方法主要包括以下两方面：
第一方面，中继UE获取中继UE的寻呼传输信息。
中继UE获取自身的寻呼传输信息的方法可以参考传统的中继UE的寻呼传输信息的获取方法，例如通信标准TS36.304中第7.1章所规定的内容，可以基于该中继UE的IMSI计算中继UE的寻呼传输信息，也可以参考以下第二方面获取远端UE的寻呼传输信息的方法，本发明实施例对此不做赘述。
第二方面，中继UE获取远端UE的寻呼传输信息。
中继UE获取远端UE的寻呼传输信息可以有多种可实现方式，本发明实施例以以下三种可实现方式为例进行说明。
第一种可实现方式，中继UE获取预先确定的远端UE的寻呼传输信息。
可选的，基站可以预先配置远端UE的寻呼传输信息，并发送给中继UE，具体的，基站可以通过系统信息、高层信令(如无线资源控制信令等)或物理层信令等将远端UE的寻呼传输信息发送给中继UE，例如，中继UE通过基站发送的系统信息模块(英文：System Information Blocks；简称：SIBs)携带的信息中得到PCCH寻呼控制信道(英文：Paging Control Channel；简称：PCCH)的基本配置信息，该基本配置信息包括预先配置的远端UE的寻呼传输信息，如可以在SIB2中的寻呼控制信道-配置(英文：Paging Control Channel-config；简称：PCCH-config)信息中携带的内容中确定预先配置的远端UE的寻呼传输信息，中继UE将该远端UE的寻呼传输信息保存并在需要使用时提取。中 继UE获取预先确定的远端UE的寻呼传输信息的过程也即是提取该远端UE的寻呼传输信息的过程。需要说明的是，上述远端UE的寻呼传输信息也可以根据协议在中继UE出厂时配置在其中，也可以由网络侧通过其他方式配置给中继UE，还可以通过人工配置等方式配置给中继UE，本发明实施例对此不作限定，只要保证和基站侧配置的远端UE的寻呼传输信息相同即可。
第二种可实现方式，中继UE根据预先配置的配置参数计算得到远端UE的寻呼传输信息。
可选的，基站可以预先配置该配置参数，并发送给中继UE。具体的，网络侧可以通过系统信息、高层信令(如无线资源控制信令等)或物理层信令等将该配置参数发送给基站，例如，中继UE通过基站发送的SIBs携带的信息中得到PCCH的基本配置信息，该基本配置信息包括预先配置的远端UE的配置参数，如可以在SIB2中的PCCH-config信息中携带的内容中确定预先配置的配置参数。中继UE将该配置参数保存并在需要计算远端UE的寻呼传输信息时提取。需要说明的是，配置参数可以包括：寻呼周期以及寻呼周期数量。需要说明的是，上述配置参数也可以根据协议在中继UE出厂时配置在其中，也可以由网络侧通过其他方式配置给中继UE，还可以通过人工配置等方式配置给中继UE，本发明实施例对此不作限定，只要保证和基站侧配置的配置参数相同即可。
在本发明实施例中，远端UE的寻呼传输信息可以包括多个寻呼传输信息。可选的，中继UE可以获取预先配置的配置参数和可配置的IMSI的全集，根据配置参数和可配置的IMSI的全集分别计算得到上述多个寻呼传输信息，该多个配置参数包括：寻呼周期以及寻呼周期数量。该计算过程可以参考上述步骤202中第二方面的第二种可实现方式中基站计算多个寻呼传输信息的过程，中继UE和基站的计算方式相同可以保证寻呼消息的收发一致性。
第三种可实现方式，中继UE根据预先配置的IMSI计算得到远端UE的寻呼传输信息。
可选的，基站可以预先配置IMSI，并发送给中继UE，具体的，基站可以通过系统信息、高层信令(如无线资源控制信令等)或物理层信令等将该IMSI发送给中继UE，例如，中继UE通过基站发送的SIBs携带的信息中得到PCCH的基本配置信息，该基本配置信息包括预先配置的IMSI，如可以在SIB2中的PCCH-config信息中携带的内容中确定预先配置的IMSI。中继将该IMSI保存 并在需要计算远端UE的寻呼传输信息时提取。需要说明的是，上述预先配置的IMSI也可以根据协议在中继UE出厂时配置在其中，也可以由网络侧通过其他方式配置给中继UE，还可以通过人工配置等方式配置给中继UE，本发明实施例对此不作限定，只要保证和基站侧配置的配置参数相同即可。
在本发明实施例中，该预先配置的IMSI通常是固定不变的，其独立于个体的中继UE的IMSI和个体的远端UE的IMSI，也即是该IMSI的获取是不针对某一个中继UE的IMSI和某一个远端UE的IMSI的。预先配置的IMSI可以是网络侧在可配置的IMSI的全集中随机选择的至少一个IMSI，也可以是根据预设规则在可配置的IMSI的全集中选择的至少一个IMSI，预先配置的IMSI还可以是网络侧先在可配置的IMSI的全集中选择的多个备选IMSI，再由基站随机选择或者按照预设规则在该多个备选IMSI选择的至少一个IMSI。基站获取了该IMSI后传输给中继UE，无论基站采用何种方式获取该预先配置的IMSI，只要保证将该预先配置的IMSI传输至中继UE，由UE采用与基站相同的计算方式计算得到寻呼传输信息即可。
该寻呼传输信息的计算过程可以参考上述步骤202中第二方面的第三种可实现方式中基站计算多个寻呼传输信息的过程，中继UE和基站的计算方式相同可以保证寻呼消息的收发一致性。
步骤205、中继UE基于两组寻呼传输信息接收基站发送的寻呼消息。
针对中继UE，中继UE可以基于中继UE的寻呼传输信息接收中继UE发送的寻呼消息，例如该寻呼传输信息指示的寻呼消息的传输位置具体为子帧的位置，则中继UE可以在该中继UE的寻呼传输信息所指示的子帧上接收中继UE发送的寻呼消息。本发明实施例对此不做赘述。
针对远端UE，一方面，由于基站和中继UE获取的远端UE的寻呼传输信息的内容相同，那么无论基站是否在远端UE的寻呼传输信息中进行目标寻呼传输信息的选择，其发送的寻呼消息都在远端UE的寻呼传输信息所指示的传输位置的范围内，那么中继UE可以对远端UE的寻呼传输信息指示的所有子帧进行监听，以接收基站发送的寻呼消息。采用该监听方式可以保证寻呼消息的有效接收。
且采用上述监听方式，基站和中继UE可以无需预先约定选择方式，减少通过信令、人工配置或其他方式配置该选择方式的过程。
需要说明的是，当基站和中继UE预先约定的选择方式是基站在远端UE 的寻呼传输信息中随机选择一个寻呼传输信息作为目标寻呼传输信息时，中继UE也采用上述监听方式。
另一方面，中继UE可以在远端UE的寻呼传输信息中选择一个目标寻呼传输信息；基于目标寻呼传输信息指示的子帧进行监听，以接收基站发送的寻呼消息。
其中，中继UE可以基于与基站预先约定的选择方式，在远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
具体的，中继UE可以根据远端UE的IMSI计算得到参考寻呼传输信息；在远端UE的寻呼传输信息中选择一个与参考寻呼传输信息最接近的寻呼传输信息作为目标寻呼传输信息。上述远端UE的IMSI为一特定的IMSI，是中继UE当前连接的远端UE的IMSI。该参考寻呼传输信息的算法可以参考上述步骤202中第二方面的第二种可实现方式所提供的寻呼传输信息计算公式。在远端UE的寻呼传输信息中选择一个与参考寻呼传输信息最接近的寻呼传输信息作为目标寻呼传输信息的具体过程可以参考上述步骤2032的第二种方式，本发明实施例对此不做赘述。
需要说明的是，上述目标寻呼传输信息的确定方式只是示意性说明，实际应用中还可以有多种方式，例如中继UE还可以根据基站的自定义规则确定目标寻呼传输信息，该自定义规则是由基站预先告知中继UE的，或者，基站和中继UE约定一参考寻呼传输信息，在远端UE的寻呼传输信息中选择一个与参考寻呼传输信息最接近的寻呼传输信息作为目标寻呼传输信息。本发明实施例对此不做赘述。
值的说明的是，由于寻呼消息中携带的是UE ID列表，如果中继UE在一个传输位置上监测到寻呼消息，可以将自身ID，以及当前连接的远端UE的ID均与该UE ID列表进行匹配，若自身ID匹配则根据该寻呼消息执行后续操作，若其连接的远端UE的ID匹配，则将寻呼消息传输给相应的远端UE，可以不考虑当前监听的传输位置属于中继UE的寻呼传输信息所指示的传输位置还是远端UE的寻呼传输消息所指示的传输位置。
目前的FeD2D通信技术中，基站可以按照中继UE的IMSI计算寻呼传输信息，基于该寻呼传输信息发送寻呼消息给中继UE，中继UE只需要去监听该寻呼传输信息所指示的子帧，在接收到针对远端UE的寻呼消息时，将该寻呼消息转发给远端UE。但是，为了保证中继UE在获取到该寻呼消息后能把 该寻呼消息传输给远端UE，中继UE需要实时上报中继UE和远端UE的连接状态，也即是每一次连接状态的变化都需要上报基站，因此网络信令开销较大。
本发明实施例提供的消息传输方法，基站获取两组寻呼传输信息，分别是中继UE的寻呼传输信息和远端UE的寻呼传输信息，当基站需要与中继UE进行数据交互，则基于中继UE的寻呼传输信息向中继UE发送寻呼消息，当基站需要与远端UE进行数据交互，则基于远端UE的寻呼传输信息向中继UE发送寻呼消息，无需考虑中继UE和远端UE的连接状态，因此减小了网络信令开销。
并且，在本发明实施例中，远端UE的寻呼传输信息是独立于个体的远端UE的，不是针对某一个远端UE计算得到的，其可以视为一个广义的概念，其针对一类远端UE，也即是该远端UE的寻呼传输信息是针对基站所服务的所有远端UE的，或者，该远端UE的寻呼传输信息是针对同一TAC下的所有远端UE的，又或者，该远端UE的寻呼传输信息是针对同一通信系统下的所有远端UE的。
如图2-3所示，图2-3是一个通信系统的架构示意图，在该通信系统中，中继UE121、中继UE123和中继UE125均和基站11建立有无线连接，且中继UE121下级联有远端UE122，中继UE123下级联有远端UE124，中继UE125下级联有远端UE126。中继UE121、中继UE123和中继UE125均可以获取两组寻呼传输信息，一组是针对自身的寻呼传输信息，另一组是针对远端UE的寻呼传输信息，三者获取的针对自身的寻呼传输信息可能不同，其获取方法可以参考传统技术，三者获取的针对远端UE的寻呼传输信息可以是相同的。例如，该寻呼传输信息采用上述步骤202中第二方面第一至第三种可实现方式获取，由于远端UE的寻呼传输信息是预先确定的，或者配置参数是预先确定的，或者IMSI是预先配置的，而这些配置均可以由网络侧，如核心网，来对基站和中继UE进行设置。因此，三者可以基于该预先配置的内容计算得到相同的远端UE的寻呼传输信息。这样一来，无论各中继UE下级联多少个远端UE，其均在远端UE的寻呼传输信息所指示的传输位置上进行监听。在远端UE的寻呼传输信息包括多个寻呼传输信息时，相当于每个中继UE能够获取多个传输位置，每个UE可以对该多个传输位置均进行监听，也可以根据预先设置的规则有选择的监听。无论哪种情况，中继UE都无需再向基站上报与远端UE的连接状态。
目前的FeD2D通信技术中，基站还可以按照其连接的远端UE的IMSI，计算寻呼传输信息，并基于该寻呼传输信息向中继UE发送寻呼消息。中继UE需要去监听包括relay UE自身和remote UE的PO、PF，以获得两者的寻呼消息。
如图2-4所示，图2-4是一个通信系统中架构示意图，在该通信系统中，中继UE121和基站11建立有无线连接，且中继UE121下级联有远端UE122、远端UE128和远端UE129。若采用目前的FeD2D通信技术，中继UE121需要针对远端UE122、远端UE128和远端UE129分别计算寻呼传输信息得到3个寻呼传输信息，并基于该3个寻呼传输信息以及自身的寻呼传输信息共4个寻呼传输信息来进行寻呼消息的监听。
而本发明实施例中，中继UE121只需获取两组寻呼传输信息，其中，远端UE的寻呼传输信息的范围是固定的，也即是，远端UE122、远端UE128和远端UE129所对应的一组远端UE的寻呼传输信息是相同的，中继UE121只需监听该一组远端UE的寻呼传输信息所指示的一个或多个传输位置，以及自身的寻呼传输信息所指示的传输位置即可。尤其在中继UE121下级联的远端UE较多时，例如，远端UE有成百上千个时，目前的FeD2D通信技术中，中继UE需要监听成百上千个传输位置，耗电量较大，而本发明实施例中，中继UE只需监听获取的远端UE的寻呼传输信息所指示的一个或多个传输位置，以及自身的寻呼传输信息所指示的传输位置即可，可以有效减少耗电量。
综上所述，本发明实施例提供的消息传输方法，基站获取两组寻呼传输信息，分别是中继UE的寻呼传输信息和远端UE的寻呼传输信息，当基站需要与中继UE进行数据交互，则基于中继UE的寻呼传输信息向中继UE发送寻呼消息，当基站需要与远端UE进行数据交互，则基于远端UE的寻呼传输信息向中继UE发送寻呼消息，无需考虑中继UE和远端UE的连接状态，且中继UE只需基于该两组寻呼传输信息接收基站发送的寻呼消息，无需考虑自身连接了多少个远端UE，因此减小了网络信令开销，也减少了中继UE的耗电量。
图3-1是根据一示例性实施例示出的一种消息传输装置30的框图，应用于基站，如图3-1所示，所述装置30包括：
获取模块301，用于获取两组寻呼传输信息，所述两组寻呼传输信息包括 中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，中继UE为所述基站与所述远端UE之间的中继设备；
发送模块302，用于基于所述两组寻呼传输信息向中继UE发送寻呼消息。
可选的，图3-2是根据一示例性实施例示出的一种发送模块的框图，如图3-2所示，所述发送模块302，可以包括：
信息获取子模块3021，用于在所述两组寻呼传输信息中确定目标UE的寻呼传输信息，所述目标UE包括所述中继UE和/或所述远端UE；
发送子模块3022，用于基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息。
可选的，所述远端UE的寻呼传输信息包括多个寻呼传输信息，所述发送子模块3022，可以包括：
选择子模块，用于当所述目标UE包括远端UE时，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
消息发送子模块，用于在所述目标寻呼传输信息指示的子帧上向所述中继UE发送所述远端UE的寻呼消息。
可选的，所述选择子模块，可以用于：
基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
可选的，所述选择子模块，可以具体用于：
在所述远端UE的寻呼传输信息中随机选择一个寻呼传输信息作为所述目标寻呼传输信息。
或者，所述选择子模块，可以具体用于：
根据所述远端UE的IMSI计算得到参考寻呼传输信息；
在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述获取模块301，可以具体用于：
获取预先确定的所述远端UE的寻呼传输信息；
或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
可选的，所述获取模块301，可以用于：
在接收到所述中继UE发送的传输模式变更信令之后，获取所述两组寻呼传输信息，所述传输模式变更信令是所述中继UE与远端UE建立连接后发送的。
可选的，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
综上所述，本发明实施例提供的消息传输装置，基站获取两组寻呼传输信息，分别是中继UE的寻呼传输信息和远端UE的寻呼传输信息，当基站需要与中继UE进行数据交互，则基于中继UE的寻呼传输信息向中继UE发送寻呼消息，当基站需要与远端UE进行数据交互，则基于远端UE的寻呼传输信息向中继UE发送寻呼消息，无需考虑中继UE和远端UE的连接状态，且中继UE只需基于该两组寻呼传输信息接收基站发送的寻呼消息，无需考虑自身连接了多少个远端UE，因此减小了网络信令开销，也减少了中继UE的耗电量。
图4-1是根据一示例性实施例示出的一种消息传输装置40的框图，应用于中继用户设备UE，如图4-1所示，所述装置40包括：
获取模块401，用于获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，所述中继UE为基站与所述远端UE之间的中继设备；
接收模块402，用于基于所述两组寻呼传输信息接收所述基站发送的寻呼消息。
可选的，所述接收模块402，可以用于：
对所述两组寻呼传输信息指示的所有子帧进行监听，以接收所述基站发送的寻呼消息。
可选的，所述远端UE的寻呼传输信息包括多个寻呼传输信息，图4-2是根据一示例性实施例示出的一种接收模块的框图，如图4-2所示，所述接收模块402，包括：
选择子模块4021，用于在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
监听子模块4022，用于基于所述目标寻呼传输信息指示的子帧进行监听， 以接收所述基站发送的寻呼消息。
可选的，所述选择子模块4021，可以用于：
基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
可选的，所述选择子模块4021，可以具体用于：
根据所述远端UE的IMSI计算得到参考寻呼传输信息；
在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
可选的，所述获取模块401，可以用于：
获取预先确定的所述远端UE的寻呼传输信息；
或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
图4-3是根据一示例性实施例示出的另一种消息传输装置的框图，所述装置40还包括：
信令传输模块403，用于在所述获取两组寻呼传输信息之前，在所述中继UE与所述远端UE建立连接后，向基站发送传输模式变更信令。
可选的，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
综上所述，本发明实施例提供的消息传输装置，中继UE获取两组寻呼传输信息，分别是中继UE的寻呼传输信息和远端UE的寻呼传输信息，可以基于中继UE的寻呼传输信息接收基站发送的寻呼消息，基于远端UE的寻呼传输信息接收基站发送的寻呼消息，无需考虑中继UE和远端UE的连接状态，且中继UE只需基于该两组寻呼传输信息接收基站发送的寻呼消息，无需考虑自身连接了多少个远端UE，因此减小了网络信令开销，也减少了中继UE的耗电量。
本发明实施例提供一种消息传输系统50，如图5所示，包括：中继UE501、远端UE502和基站503，该中继UE501可以包括上述图3-1所示的消息传输设备40；
所述基站503可以包括图4-1或4-3所示的消息传输设备50。
请参考图6，其示出了本发明示例性实施例涉及的一种消息传输装置60 的结构示意图。该消息传输装置60可以是上述中继UE501或基站503，该消息传输装置60包括：处理器62和网络接口64。
处理器62包括一个或者一个以上处理核心。处理器62通过运行软件程序以及模块，从而执行各种功能应用以及数据处理。
网络接口64可以为多个，该网络接口64用于与其它存储设备或者网络设备进行通信。
可选的，消息传输装置60还包括存储器66、总线68等部件。其中，存储器66与网络接口64分别通过总线68与处理器62相连。
存储器66可用于存储软件程序以及模块。具体的，存储器66可存储操作系统662、至少一个功能所需的应用程序模块664。操作系统662可以是实时操作系统(Real Time eXecutive，RTX)、LINUX、UNIX、WINDOWS或OS X之类的操作系统。
在一些实施方式中，当消息传输装置60为基站503时，网络接口64可以为收发天线(也可以视为发射机和接收机)，存储器66存储的应用程序模块664可以执行上述步骤202、步骤203等步骤；
当消息传输装置60为中继UE501时，网络接口64可以为收发天线(也可以视为发射机和接收机)，存储器66存储的应用程序模块664可以执行上述步骤201、步骤204、步骤205等步骤；
在示例性实施例中，本发明实施例还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器66，上述指令可由消息传输装置60的处理器62执行以完成上述照明设备控制方法。例如，非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
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，装置和模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本发明实施例中术语“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。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通 过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (35)

  1. 一种消息传输方法，其特征在于，应用于基站，所述方法包括：
    获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，中继UE为所述基站与所述远端UE之间的中继设备；
    基于所述两组寻呼传输信息向中继UE发送寻呼消息。
  2. 根据权利要求1所述的方法，其特征在于，
    所述基于所述两组寻呼传输信息向中继UE发送寻呼消息，包括：
    在所述两组寻呼传输信息中确定目标UE的寻呼传输信息，所述目标UE包括所述中继UE和/或所述远端UE；
    基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息。
  3. 根据权利要求2所述的方法，其特征在于，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
    所述基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息，包括：
    当所述目标UE包括远端UE时，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
    在所述目标寻呼传输信息指示的子帧上向所述中继UE发送所述远端UE的寻呼消息。
  4. 根据权利要求3所述的方法，其特征在于，
    所述在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
    基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
  5. 根据权利要求4所述的方法，其特征在于，
    所述基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
    在所述远端UE的寻呼传输信息中随机选择一个寻呼传输信息作为所述目标寻呼传输信息。
  6. 根据权利要求4所述的方法，其特征在于，
    所述基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
    根据所述远端UE的IMSI计算得到参考寻呼传输信息；
    在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述获取两组寻呼传输信息，包括：
    获取预先确定的所述远端UE的寻呼传输信息；
    或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
    或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
  8. 根据权利要求1至6任一所述的方法，其特征在于，所述获取两组寻呼传输信息，包括：
    在接收到所述中继UE发送的传输模式变更信令之后，获取所述两组寻呼传输信息，所述传输模式变更信令是所述中继UE与远端UE建立连接后发送的。
  9. 根据权利要求1所述的方法，其特征在于，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
  10. 一种消息传输方法，其特征在于，应用于中继用户设备UE，所述方法包括：
    获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的 传输位置，所述中继UE为基站与所述远端UE之间的中继设备；
    基于所述两组寻呼传输信息接收所述基站发送的寻呼消息。
  11. 根据权利要求10所述的方法，其特征在于，
    所述基于所述两组寻呼传输信息接收所述基站发送的寻呼消息，包括：
    对所述两组寻呼传输信息指示的所有子帧进行监听，以接收所述基站发送的寻呼消息。
  12. 根据权利要求10所述的方法，其特征在于，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
    所述基于所述两组寻呼传输信息接收所述基站发送的寻呼消息，包括：
    在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
    基于所述目标寻呼传输信息指示的子帧进行监听，以接收所述基站发送的寻呼消息。
  13. 根据权利要求12所述的方法，其特征在于，
    所述在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
    基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
  14. 根据权利要求13所述的方法，其特征在于，
    所述基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息，包括：
    根据所述远端UE的IMSI计算得到参考寻呼传输信息；
    在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
  15. 根据权利要求10至14任一所述的方法，其特征在于，所述获取两组寻呼传输信息，包括：
    获取预先确定的所述远端UE的寻呼传输信息；
    或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
    或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
  16. 根据权利要求10至14任一所述的方法，其特征在于，在所述获取两组寻呼传输信息之前，所述方法还包括：
    在所述中继UE与所述远端UE建立连接后，向基站发送传输模式变更信令。
  17. 根据权利要求10所述的方法，其特征在于，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
  18. 一种消息传输装置，其特征在于，应用于基站，所述装置包括：
    获取模块，用于获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，中继UE为所述基站与所述远端UE之间的中继设备；
    发送模块，用于基于所述两组寻呼传输信息向中继UE发送寻呼消息。
  19. 根据权利要求18所述的装置，其特征在于，所述发送模块，包括：
    信息获取子模块，用于在所述两组寻呼传输信息中确定目标UE的寻呼传输信息，所述目标UE包括所述中继UE和/或所述远端UE；
    发送子模块，用于基于所述目标UE的寻呼传输信息向所述中继UE发送寻呼消息。
  20. 根据权利要求19所述的装置，其特征在于，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
    所述发送子模块，包括：
    选择子模块，用于当所述目标UE包括远端UE时，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
    消息发送子模块，用于在所述目标寻呼传输信息指示的子帧上向所述中继UE发送所述远端UE的寻呼消息。
  21. 根据权利要求20所述的装置，其特征在于，
    所述选择子模块，用于：
    基于与所述中继UE预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
  22. 根据权利要求21所述的装置，其特征在于，
    所述选择子模块，具体用于：
    在所述远端UE的寻呼传输信息中随机选择一个寻呼传输信息作为所述目标寻呼传输信息。
  23. 根据权利要求21所述的装置，其特征在于，
    所述选择子模块，具体用于：
    根据所述远端UE的IMSI计算得到参考寻呼传输信息；
    在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
  24. 根据权利要求18至23任一所述的装置，其特征在于，所述获取模块，用于：
    获取预先确定的所述远端UE的寻呼传输信息；
    或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
    或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
  25. 根据权利要求18至23任一所述的装置，其特征在于，所述获取模块，用于：
    在接收到所述中继UE发送的传输模式变更信令之后，获取所述两组寻呼传输信息，所述传输模式变更信令是所述中继UE与远端UE建立连接后发送的。
  26. 根据权利要求18所述的装置，其特征在于，所述寻呼传输信息包括： 寻呼时刻和寻呼帧的信息。
  27. 一种消息传输装置，其特征在于，应用于中继用户设备UE，所述装置包括：
    获取模块，用于获取两组寻呼传输信息，所述两组寻呼传输信息包括中继用户设备UE的寻呼传输信息和远端UE的寻呼传输信息，所述寻呼传输信息用于指示寻呼消息的传输位置，所述中继UE为基站与所述远端UE之间的中继设备；
    接收模块，用于基于所述两组寻呼传输信息接收所述基站发送的寻呼消息。
  28. 根据权利要求27所述的装置，其特征在于，
    所述接收模块，用于：
    对所述两组寻呼传输信息指示的所有子帧进行监听，以接收所述基站发送的寻呼消息。
  29. 根据权利要求27所述的装置，其特征在于，所述远端UE的寻呼传输信息包括多个寻呼传输信息，
    所述接收模块，包括：
    选择子模块，用于在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息；
    监听子模块，用于基于所述目标寻呼传输信息指示的子帧进行监听，以接收所述基站发送的寻呼消息。
  30. 根据权利要求29所述的装置，其特征在于，
    所述选择子模块，用于：
    基于与所述基站预先约定的选择方式，在所述远端UE的寻呼传输信息中选择一个目标寻呼传输信息。
  31. 根据权利要求30所述的装置，其特征在于，
    所述选择子模块，具体用于：
    根据所述远端UE的IMSI计算得到参考寻呼传输信息；
    在所述远端UE的寻呼传输信息中选择一个与所述参考寻呼传输信息最接近的寻呼传输信息作为所述目标寻呼传输信息。
  32. 根据权利要求27至31任一所述的装置，其特征在于，所述获取模块，用于：
    获取预先确定的所述远端UE的寻呼传输信息；
    或者，根据预先配置的配置参数计算得到所述远端UE的寻呼传输信息；
    或者，根据预先配置的国际移动用户识别码IMSI计算得到所述远端UE的寻呼传输信息。
  33. 根据权利要求27至31任一所述的装置，其特征在于，所述装置还包括：
    信令传输模块，用于在所述获取两组寻呼传输信息之前，在所述中继UE与所述远端UE建立连接后，向基站发送传输模式变更信令。
  34. 根据权利要求27所述的装置，其特征在于，所述寻呼传输信息包括：寻呼时刻和寻呼帧的信息。
  35. 一种消息传输系统，其特征在于，包括：中继UE、远端UE和基站，所述基站包括权利要求18至26任一所述的消息传输装置，所述中继UE包括权利要求27至34任一所述的消息传输装置。
PCT/CN2017/082445 2017-04-28 2017-04-28 消息传输方法、装置及系统 WO2018195917A1 (zh)

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CN110235485B (zh) 2024-03-29
CN110235485A (zh) 2019-09-13
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